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Virginia Tech
1.
Watt, Grace R.
Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.
Degree: MS, Electrical Engineering, 2020, Virginia Tech
URL: http://hdl.handle.net/10919/96559 
► This paper describes the design, construction, and testing of advanced power devices for use in electric vehicles. Power devices are necessary to supply electricity to…
(more)
▼ This paper describes the design, construction, and testing of advanced power devices for use in electric vehicles. Power devices are necessary to supply electricity to different parts of the vehicle; for example, energy is stored in a battery as
direct current (DC) power, but the motor requires alternating current (AC) power. Therefore, power electronics can alter the energy to be delivered as DC or AC. In order to carry more power, multiple devices can be used together just as 10 people can carry more weight than 1 person. However, because the devices are not perfect, there can be slight differences in the performance of one device to another. One device may have to carry more current than another device which could cause failure earlier than intended. In this research project, multiple power devices were placed into a package, or "module." In a control module, the devices were selected with similar properties to one another. In an experimental module, the devices were selected with properties very different from one another. It was determined that the when the devices were 17.7% difference, there was 119.9 µJ more energy loss and it was 22.2°C hotter than when the difference was only 0.6%. However, the severity of the difference was dependent on how multiple device characteristics interacted with one another. It may be possible to compensate some of the impact of device differences in one characteristic with opposing differences in another device characteristic.
Advisors/Committee Members: Burgos, Rolando (committeechair), Lu, Guo Quan (committee member), Dimarino, Christina Marie (committee member), Ngo, Khai D. (committee member).
Subjects/Keywords: SiC MOSFET; power module packaging; flexible PCB; current sharing; symmetrical direct bonded copper (DBC) layout; diode-less module; multi-chip module; device parametric tolerances; package parasitics; vertical GaN
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APA (6th Edition):
Watt, G. R. (2020). Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/96559
Chicago Manual of Style (16th Edition):
Watt, Grace R. “Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.” 2020. Masters Thesis, Virginia Tech. Accessed January 20, 2021.
http://hdl.handle.net/10919/96559.
MLA Handbook (7th Edition):
Watt, Grace R. “Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.” 2020. Web. 20 Jan 2021.
Vancouver:
Watt GR. Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/10919/96559.
Council of Science Editors:
Watt GR. Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/96559
2.
Ha, Min Seok.
Thermal analysis of high power led arrays.
Degree: MS, Mechanical Engineering, 2009, Georgia Tech
URL: http://hdl.handle.net/1853/31803
► LEDs are being developed as the next generation lighting source due to their high efficiency and long life time, with a potential to save $15…
(more)
▼ LEDs are being developed as the next generation lighting source due to their high
efficiency and long life time, with a potential to save $15 billion per year in energy cost
by 2020. State of the art LEDs are capable of emitting light at ~115 lm/W and have
lifetime over 50,000 hours. It has already surpassed the efficiency of incandescent light
sources, and is even comparable to that of fluorescent lamps. Since the total luminous
flux generated by a single LED is considerably lower than other light sources, to be
competitive the total light output must be increased with higher forward currents and
packages of multiple LEDs. However, both of these solutions would increase the
junction temperature, which degrades the performance of the LED – as the operating
temperature goes up, the light intensity decreases, the lifetime is reduced, and the light
color changes. The word "junction" refers to the p-n junction within the LED-chips.
Critical to the temperature rise in high powered LED sources is the very large heat flux at
the die level (100-500 W/cm2) which must be addressed in order to lower the operating
temperature in the die. It is possible to address the spreading requirements of high
powered LED die through the use of power electronic substrates for efficient heat
dissipation, especially when the die are directly mounted to the power substrate in a chipon-
board (COB) architecture. COB is a very attractive technology for packaging power
LEDs which can lead improved price competiveness, package integration and thermal
performance.
In our work high power LED-chips (>1W/die) implementing COB architectures
were designed and studied. Substrates for these packaging configurations include two
types of power electronic substrates; insulated-metal-substrates (IMS) and
direct-
bonded-
copper (
DBC). To lower the operating temperature both the thermal impedance of the
dielectric layer and the heat spreading in the
copper circuit layers must be studied. In the
analysis of our architectures, several lead free solders and thermal interface materials
were considered. We start with the analysis of single-chip LED package and extend the
result to the multi-chip arrays. The thermal resistance of the system is only a function of
geometry and thermal conductivity if temperature-independent properties are used. Thus
through finite element analysis (ANSYS) the effect of geometry and thermal conductivity
on the thermal resistance was investigated. The drawback of finite element analysis is
that many simulations must be conducted whenever the geometry or the thermal
conductivity is changed. To bypass same of the computational load, a thermal resistance
network was developed. We developed analytical expressions of the thermal resistance,
especially focusing on the heat spreading effect at the substrate level. Finally, multi-chip
LED arrays were analyzed through finite element analysis and an analytical analysis;
where die-spacing is another important factor to determine the junction temperature.
With this…
Advisors/Committee Members: Samuel Graham (Committee Chair), J. Rhett Mayor (Committee Member), Yogendra Joshi (Committee Member).
Subjects/Keywords: Insulated metal substrate; DBC; Direct bonded copper; Power electronic substrate; IMS; Thermal management; Heat spreading; Led; Light-emitting diode; LED array; Light emitting diodes; Heat Transmission
…of a direct bonded copper (DBC) substrate and an insulated metal substrate
(… …substrates: insulated-metal-substrates (IMS) and direct-bonded-copper (DBC). In… …electronic substrates; insulated-metal-substrates (IMS) and direct-bonded-
xvi
copper… …55
Figure 51. The copper circuit layer of DBC substrate. The area of copper circuit layer… …Figure 73. Thermal resistance of DBC as a function of copper thickness. 1mm2 heat source is…
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APA (6th Edition):
Ha, M. S. (2009). Thermal analysis of high power led arrays. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/31803
Chicago Manual of Style (16th Edition):
Ha, Min Seok. “Thermal analysis of high power led arrays.” 2009. Masters Thesis, Georgia Tech. Accessed January 20, 2021.
http://hdl.handle.net/1853/31803.
MLA Handbook (7th Edition):
Ha, Min Seok. “Thermal analysis of high power led arrays.” 2009. Web. 20 Jan 2021.
Vancouver:
Ha MS. Thermal analysis of high power led arrays. [Internet] [Masters thesis]. Georgia Tech; 2009. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1853/31803.
Council of Science Editors:
Ha MS. Thermal analysis of high power led arrays. [Masters Thesis]. Georgia Tech; 2009. Available from: http://hdl.handle.net/1853/31803
Université Paris-Sud – Paris XI
3.
Mabille, Loïc.
Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration.
Degree: Docteur es, Physique des matériaux, 2014, Université Paris-Sud – Paris XI
URL: http://www.theses.fr/2014PA112037
► Les systèmes photovoltaïques à concentration, ou CPV, reposent sur le principe de la concentration des rayons du soleil sur une cellule photovoltaïque à très haut…
(more)
▼ Les systèmes photovoltaïques à concentration, ou CPV, reposent sur le principe de la concentration des rayons du soleil sur une cellule photovoltaïque à très haut rendement. Le CPV reste jeune face au photovoltaïque (PV) classique qui accumule plus de 30 ans de retour d’expérience.La pérennisation de cette technologie CPV ne passera que par la démonstration d’une certaine maturité. Aussi, la question de la fiabilité de ces systèmes est plus que jamais d’actualité. Dans ce contexte, le Commissariat à L’Energie Atomique et aux Energies Alternatives (CEA) a répondu à la sollicitation lancée par des fabricants de modules CPV français sur la thématique de la conception et de la fiabilisation de modules CPV par une collaboration de ses différents laboratoires, dont le Laboratoire des Modules Photovoltaïques (LMPV). C’est au sein de ce laboratoire que s’effectuent les travaux de thèse. La diversité des éléments constituant un module CPV a poussé les travaux de thèse à se concentrer sur le coeur fonctionnel des modules : les assemblages CPV. Une première partie des travaux de thèse a consisté à mettre en place les bons outils de caractérisation, en partant parfois d’une feuille blanche. La mesure de caractéristique IV dans l’obscurité, la mesure de réponse spectrale, la tomographie RX ou encore l’électroluminescence sont autant de moyens de caractérisation de cellules multi-jonctions amenés par les travaux de thèse. Les efforts conduits sur l’électroluminescence auront permis l’invention d’une nouvelle technique de caractérisation des interfaces cellule/ substrat des assemblages CPV, concrétisée par le dépôt d’un brevet. Une collaboration entre le laboratoire d’accueil et l’Institut de l’Energie Solaire (IES) à Madrid a permis l’accès à la mesure de performance des assemblages CPV sous éclairement. Tous ces moyens ont rendu possible une caractérisation fine des assemblages CPV et ont permis de s’intéresser à leur robustesse-fiabilité, deuxième partie des travaux de thèse. Deux types d’assemblages CPV ont été étudiés durant les travaux de thèse. Le premier, basé sur un substrat Direct Bonded Copper (DBC) correspond à l’état de l’art et est le plus utilisé dans l’industrie CPV. Le deuxième, en rupture technologique avec l’état de l’art, repose sur un Substrat Métal Isolé (SMI), et a été intégralement développé par le CEA et ses partenaires industriels. L’étude de la robustesse de ces assemblages CPV a été faite par l’emploi de tests de vieillissement accéléré dont la nature est justifiée par le retour d’expérience et la définition des spécifications environnementales. Aucune défaillance n’a été observé sur chacun des types d’assemblage. Les assemblages SMI se comportent comme les assemblages DBC, considérés comme références. Les travaux de thèse offrent donc un premier retour d’expérience propre au laboratoire d’accueil et la mise en place d’une infrastructure complète de caractérisation d’assemblage CPV permet aujourd’hui au CEA d’être un acteur clé du CPV en France.
Concentrating Photovoltaic (CPV) is based on the…
Advisors/Committee Members: Djebbour, Zacharia (thesis director).
Subjects/Keywords: CPV; Cellule photovoltaïques multi-jonction; Assemblage CPV; Electroluminescence; Fiabilité; Direct bonded copper; Substrat métal isolé; CPV; Multijonction solar cell; CPV die-attached; Electroluminescence; Reliability; Direct Bonded Copper; Insulated Metal Substrate
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APA (6th Edition):
Mabille, L. (2014). Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration. (Doctoral Dissertation). Université Paris-Sud – Paris XI. Retrieved from http://www.theses.fr/2014PA112037
Chicago Manual of Style (16th Edition):
Mabille, Loïc. “Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration.” 2014. Doctoral Dissertation, Université Paris-Sud – Paris XI. Accessed January 20, 2021.
http://www.theses.fr/2014PA112037.
MLA Handbook (7th Edition):
Mabille, Loïc. “Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration.” 2014. Web. 20 Jan 2021.
Vancouver:
Mabille L. Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration. [Internet] [Doctoral dissertation]. Université Paris-Sud – Paris XI; 2014. [cited 2021 Jan 20].
Available from: http://www.theses.fr/2014PA112037.
Council of Science Editors:
Mabille L. Vers la compréhension des mécanismes de dégradation et de vieillissement des assemblages photovoltaïques pour des applications sous haute concentration : On the understanding of failure and ageing mechanisms of photovoltaics cell-assemblies used under high concentration. [Doctoral Dissertation]. Université Paris-Sud – Paris XI; 2014. Available from: http://www.theses.fr/2014PA112037
University of New Mexico
4.
Martinez, Ricardo Martin.
Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates.
Degree: Mechanical Engineering, 2016, University of New Mexico
URL: http://hdl.handle.net/1928/32253
► This thesis presents an experimental study of the effects of ultrafast laser ablation on the mechanical properties of metal laminates followed by FEA simulation to…
(more)
▼ This thesis presents an experimental study of the effects of ultrafast laser ablation on the mechanical properties of metal laminates followed by FEA simulation to elucidate future experimental potential. The metals investigated are
copper, niobium, and
copper/niobium accumulative roll
bonded (ARB) laminates. The two laminate materials in this study have a nominal layer thickness of 1.8 microns and 65 nanometers; the effects of the laser processing on the ARB materials are characterized in the rolling direction as well as the transverse direction as the material exhibits anisotropic properties. The aforementioned materials are examined via scanning electron microscopy and energy dispersive spectroscopy techniques to obtain changes in layer restructuring and modification. The motivation of this study is to characterize the heat affected zone in the materials produced by ultrafast laser processing to determine whether ultrafast laser ablation is a viable method for creating artificial cracks for SEM in-situ mini cantilever fracture testing. A parameter space is defined to attempt to capture an acceptable set of laser settings which both reduce the heat affected zone and create an etched geometry mimicking a crack into the sample to facilitate crack propagation in bend testing. Finally, simulation is performed using ANSYS to determine sample geometry constraints induced by both the laser-notched crack tips geometry and the limitations of the experimental apparatus used for in-situ testing. Additionally, simulations will provide insight into the plastic behavior of the layered structure.'
Advisors/Committee Members: Shen, Yu-Lin, Tehrani, Mehran, McCulloch, Quinn.
Subjects/Keywords: femtosecond laser laminate copper niobium accumulative roll bonded
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APA (6th Edition):
Martinez, R. M. (2016). Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates. (Masters Thesis). University of New Mexico. Retrieved from http://hdl.handle.net/1928/32253
Chicago Manual of Style (16th Edition):
Martinez, Ricardo Martin. “Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates.” 2016. Masters Thesis, University of New Mexico. Accessed January 20, 2021.
http://hdl.handle.net/1928/32253.
MLA Handbook (7th Edition):
Martinez, Ricardo Martin. “Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates.” 2016. Web. 20 Jan 2021.
Vancouver:
Martinez RM. Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates. [Internet] [Masters thesis]. University of New Mexico; 2016. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1928/32253.
Council of Science Editors:
Martinez RM. Crack Tip Micromaching by Femtosecond Laser for Fracture Testing of Metal Laminates. [Masters Thesis]. University of New Mexico; 2016. Available from: http://hdl.handle.net/1928/32253
Georgia Tech
5.
Puckett, Waylon Tanner.
Novel substrates for improved cooling of power electronics.
Degree: MS, Mechanical Engineering, 2017, Georgia Tech
URL: http://hdl.handle.net/1853/60187
► The thermal management of power electronics is critical to the long term reliability of these devices. In this work, three concepts which allow the placement…
(more)
▼ The thermal management of power electronics is critical to the long term reliability of these devices. In this work, three concepts which allow the placement of advanced cooling solutions close to power electronic die are investigated through the creation of advanced substrate technologies. First, two phase cooling was integrated with
direct bonded copper power substrates by sintering
copper particles directly onto the back side to allow for evaporative two phase cooling. The work experimentally investigated the impact of the thickness of the
copper microporous layer as well as its size relative to the thermal test die on the heat transfer performance. The second methodology developed a novel substrate that replaces the
DBC by having a cold plate with integrated AlN dielectric and circuit layer. A low-cost bonding method which created a low thermal resistance composite bonding layer was developed and demonstrated which allows low thermal resistance between the die and the cooling fluid. Finally, a third technique which uses a glass interposer with
copper vias to bond the power die was investigated as a third packaging methodology. This strategy was explored through finite element analysis. Overall, this thesis presents several new pathways to improving the thermal management of wide bandgap power electronic and RF devices.
Advisors/Committee Members: Graham, Samuel (advisor), Loutzenhiser, Peter (committee member), Bakir, Muhannad S. (committee member).
Subjects/Keywords: Power electronics; Integrated cooling; IGBT; HEMT; Substrate; DBC; Evaporation; Bonding; Copper particles; AlN; AlSiC; RF amplifier; Heat spreader; Eutectic bond; Thermal management; Two-phase cooling
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APA (6th Edition):
Puckett, W. T. (2017). Novel substrates for improved cooling of power electronics. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/60187
Chicago Manual of Style (16th Edition):
Puckett, Waylon Tanner. “Novel substrates for improved cooling of power electronics.” 2017. Masters Thesis, Georgia Tech. Accessed January 20, 2021.
http://hdl.handle.net/1853/60187.
MLA Handbook (7th Edition):
Puckett, Waylon Tanner. “Novel substrates for improved cooling of power electronics.” 2017. Web. 20 Jan 2021.
Vancouver:
Puckett WT. Novel substrates for improved cooling of power electronics. [Internet] [Masters thesis]. Georgia Tech; 2017. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1853/60187.
Council of Science Editors:
Puckett WT. Novel substrates for improved cooling of power electronics. [Masters Thesis]. Georgia Tech; 2017. Available from: http://hdl.handle.net/1853/60187
Brno University of Technology
6.
Kapusta, Vladimír.
Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/66479
► Master thesis named „Creation of logistic concept in the selected company“ is focused on detailed analysis of material flow of waste in manufacturing company. The…
(more)
▼ Master thesis named „Creation of logistic concept in the selected company“ is focused on detailed analysis of material flow of waste in manufacturing company. The main objective of thesis is proposal of new logistic concept of handling with
copper waste, which is created during the manufacturing processes, which function will be to remove defects in material flow, to shorten the handling time with
copper waste and more accurate information flow, considering work safety, costs and time.
Advisors/Committee Members: Jurová, Marie (advisor), Lahučký, Martin (referee).
Subjects/Keywords: výroba; materiálový tok; rozloženie výroby; logistika; analýza; odpad; meď; production; material flow; layout; logistics; analysis; waste; copper
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APA (6th Edition):
Kapusta, V. (2018). Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/66479
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kapusta, Vladimír. “Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company.” 2018. Thesis, Brno University of Technology. Accessed January 20, 2021.
http://hdl.handle.net/11012/66479.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kapusta, Vladimír. “Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company.” 2018. Web. 20 Jan 2021.
Vancouver:
Kapusta V. Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/11012/66479.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kapusta V. Tvorba logistické koncepce ve vybrané firmě: Creation of Logistic Concept in the Selected Company. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/66479
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
7.
Beilliard, Yann.
Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture.
Degree: Docteur es, Matériaux, mécanique, génie civil, électrochimie, 2015, Université Grenoble Alpes (ComUE)
URL: http://www.theses.fr/2015GREAI008
► Cette thèse s'inscrit dans le contexte de l'intégration tridimensionnelle des dispositifs électroniques. Parmi les différentes techniques permettant d'assembler à la fois mécaniquement et électriquement les…
(more)
▼ Cette thèse s'inscrit dans le contexte de l'intégration tridimensionnelle des dispositifs électroniques. Parmi les différentes techniques permettant d'assembler à la fois mécaniquement et électriquement les puces empilées, le collage direct de surfaces mixtes Cu-SiO2 représente l'option la plus prometteuse à ce jour. En effet, cette méthode permet d'atteindre la densité d'interconnexions de 106/cm² visée par l'industrie, tout en offrant une faible résistivité de contact et une excellente fiabilité. L'objectif de ce travail est de démontrer la compatibilité du procédé de collage direct hybride Cu-SiO2 avec des intégrations et des architectures proches de circuits réels. Dans ce but, des véhicules de tests intégrant des structures de cuivre à deux et quatre niveaux d'interconnexions ont été conçus spécifiquement. De plus, des simulations par éléments finis du procédé collage direct ont été développées au sein du logiciel Abaqus. Dans un premier temps, le procédé de collage direct puce-à-plaque en 200 et 300 mm est validé. Des caractérisations morphologiques et électriques montrent que cette méthode d'assemblage ne dégrade pas l'intégrité et les performances de structures de tests à deux niveaux par rapport à une intégration plaque-à-plaque. Par ailleurs, des tests de cyclage thermique confirment l'excellente robustesse mécanique des empilements. La deuxième partie de cette thèse s'intéresse à la caractérisation de la morphologie, des performances électriques et de la fiabilité de structures de tests à quatre niveaux d'interconnexions. Dans ce cas, l'architecture plaque-à-plaque en 200 mm des véhicules de tests se veut proche d'une intégration industrielle. Les diverses observations par microscopie électronique à balayage et en transmission indiquent une excellente qualité de collage des interfaces Cu/Cu et SiO2/SiO2. Par ailleurs, les mécanismes de formation des cavités nanométriques à l'interface Cu/Cu et le phénomène de diffusion du cuivre dans la silice sont investigués. Les caractérisations électriques révèlent des rendements de fonctionnement supérieurs à 95 % ainsi que des écarts types inférieurs à 3 % après recuit à 200 ou 400 °C. Enfin, les études de fiabilité incluant des tests de stockage en chaleur humide, de cyclage thermique, de stockage en température et d'électromigration attestent de la résistance à la corrosion et de la robustesse mécanique de cette intégration. Pour finir, les simulations par éléments finis indiquent que les interactions cohésives à l'interface de collage, combinées à la dilatation thermique du cuivre pendant le recuit, assistent significativement le processus de collage de surfaces de cuivre incurvées par sur-polissage. En outre, la déformation plastique macroscopique du cuivre semble avoir un effet néfaste sur le processus de scellement en freinant la propagation de l'onde de collage.
The context of this work is the three-dimensional integration of electronic devices. Among the various techniques allowing to assemble both mechanically and electrically stacked chips, the direct…
Advisors/Committee Members: Estevez, Rafaël (thesis director), Parry, Guillaume (thesis director).
Subjects/Keywords: Intégration 3D; Collage direct cuivre; Caractérisation; Morphologie; Fiabillité; Simulation; 3D Integration; Direct copper bonding; Characterisation; Morphology; Reliability; Simulation; 620
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APA ·
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APA (6th Edition):
Beilliard, Y. (2015). Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2015GREAI008
Chicago Manual of Style (16th Edition):
Beilliard, Yann. “Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture.” 2015. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed January 20, 2021.
http://www.theses.fr/2015GREAI008.
MLA Handbook (7th Edition):
Beilliard, Yann. “Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture.” 2015. Web. 20 Jan 2021.
Vancouver:
Beilliard Y. Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2015. [cited 2021 Jan 20].
Available from: http://www.theses.fr/2015GREAI008.
Council of Science Editors:
Beilliard Y. Etude de l'intégration du collage direct cuivre/oxyde pour l'élaboration d'une architecture 3D-SIC : Study of the integration of copper/oxide direct bonding for the development of a 3D-SIC architecture. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2015. Available from: http://www.theses.fr/2015GREAI008
Malmö University
8.
Aleksejeva, Olga.
Blue copper proteins as bioelements for bioelectronic devices
.
Degree: Malmö University. Biomedical Sciences (BMV), 2019, Malmö University
URL: http://hdl.handle.net/2043/28677
► This thesis is focused on bioelements for biological electric power sources, specifically, on blue copper proteins with and without an intrinsic biocatalytic activity, i.e. ability…
(more)
▼ This thesis is focused on bioelements for biological electric power sources,
specifically, on blue copper proteins with and without an intrinsic biocatalytic
activity, i.e. ability to reduce oxygen directly to water. These proteins, viz. different
laccases, ceruloplasmin, and rusticyanin, were characterised in detail
and employed for the construction of both self-charging and conventional biosupercapacitors.
First, similarities and particularities of oxygen electroreduction
vs. bioelectroreduction were reviewed. Moreover, being a promising candidate
for the construction of autotolerant implantable biocathodes, the electrochemistry
of human ceruloplasmin was revisited. For the first time, a clear
bioelectrocatalytic reduction of oxygen on ceruloplasmin modified electrodes
was shown. Second, computational design combined with directed evolution
resulted in a high redox potential mutated laccase, GreeDo, with increased redox
potential of the T1 site, increased activity towards high redox potential
mediators, as well as enhanced stability. Third, GreeDo was electrochemically
characterised in detail. The mutant exhibited higher open circuit potential
values and onset potentials for oxygen bioelectroreduction compared to the parental laccase, OB-1. Moreover, the operational stability of GreeDo modified
graphite electrodes was found to be more than 2 h in a decidedly acidic
electrolyte, in agreement with the extended operational and storage stabilities
of the enzyme in acidic solutions. Fourth, multi-cell single-electrolyte glucose/
oxygen biodevices with adjustable open-circuit and operating voltages,
which are independent on the difference in equilibrium redox potentials of the
two redox couples, gluconolactone/glucose and oxygen/water, viz. 1.18 V, but
dependent on the number of half-cells in the biodevice construction, were designed
and tested. The biodevices were made from tubular graphite electrodes
with electropolymerised poly(3,4-ethylenedioxythiophene) modified with
Trametes hirsuta laccase and Neurospora crassa cellobiose dehydrogenase as the cathodic and anodic biocatalysts, respectively. Due to the interplay between
faradaic and non-faradaic electrochemical processes, as well as between
ionic and electronic conductivities, the open-circuit voltage of the self-charged
biodevice is extraordinarily high, reaching 3 V, when seven biosupercapacitors
operating in a common electrolyte were connected in series. Moreover,
glucose/oxygen biodevices could be externally discharged at an operating
voltage exceeding the maximal limiting open-circuit value of 1.24 V for the
complete glucose oxidation. Last but not least, a conventional biosupercapacitor,
i.e. a biodevice lacking self-charging ability, was composed of Acidithiobacillus
ferrooxidans rusticyanin modified gold electrodes. The complete biodevices
as well as separate electrodes were thoroughly characterised electrochemically.
The symmetrical biosupercapacitor based on two identical gold
electrodes modified with rusticyanin is…
Subjects/Keywords: Blue copper protein;
Multicopper oxidase;
Direct electron transfer;
Oxygen bioelectroreduction;
Enzymatic fuel cell;
Biosupercapacitor
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APA (6th Edition):
Aleksejeva, O. (2019). Blue copper proteins as bioelements for bioelectronic devices
. (Thesis). Malmö University. Retrieved from http://hdl.handle.net/2043/28677
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Aleksejeva, Olga. “Blue copper proteins as bioelements for bioelectronic devices
.” 2019. Thesis, Malmö University. Accessed January 20, 2021.
http://hdl.handle.net/2043/28677.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Aleksejeva, Olga. “Blue copper proteins as bioelements for bioelectronic devices
.” 2019. Web. 20 Jan 2021.
Vancouver:
Aleksejeva O. Blue copper proteins as bioelements for bioelectronic devices
. [Internet] [Thesis]. Malmö University; 2019. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/2043/28677.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Aleksejeva O. Blue copper proteins as bioelements for bioelectronic devices
. [Thesis]. Malmö University; 2019. Available from: http://hdl.handle.net/2043/28677
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Brno University of Technology
9.
Hajdú, Lukáš.
Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/8576
► The goal of this bachelor´s thesis is to evaluate short-circuit conditions at the Sokolnice 110kV switching station before and after installation of a T402 transformer…
(more)
▼ The goal of this bachelor´s thesis is to evaluate short-circuit conditions at the Sokolnice 110kV switching station before and after installation of a T402 transformer – before and after application of a
direct 400/110kV transformation. By evaluating these conditions determine whether the originally installed protective elements (power circuit-breakers) are capable of fulfilling the new short-circuit requirements at the switching station. The thesis consists of two parts: the first part introduces the theory required to evaluate the short-circuit conditions at the switching station, while the second part calculates the actual short-circuit currents and power outputs. The methods used for calculation are sequential simplification and
symmetrical components.
Advisors/Committee Members: Blažek, Vladimír (advisor), Paar, Martin (referee).
Subjects/Keywords: zkrat; rozvodna; Sokolnice; 110kV; T402; přímá transformace; třífázový zkrat; jednofázový zkrat; souměrné složky; ČSN 333020; ČSN EN 60909; short-circuit; switching station; Sokolnice; 110kV; T402; direct transformation; three-phase short-circuit; one-phase short-circuit; symmetrical components; ČSN 333020; ČSN EN 60909
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CSE |
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Manager
APA (6th Edition):
Hajdú, L. (2019). Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/8576
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hajdú, Lukáš. “Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation.” 2019. Thesis, Brno University of Technology. Accessed January 20, 2021.
http://hdl.handle.net/11012/8576.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hajdú, Lukáš. “Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation.” 2019. Web. 20 Jan 2021.
Vancouver:
Hajdú L. Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/11012/8576.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hajdú L. Zkratové poměry v rozvodně 110 kV Sokolnice po zavedení přímé transformace 400/110 kV: Short - circuit conditions at Sokolnice 110 kV switching station following a direct 400/110 kV transformation. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/8576
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universiteit Utrecht
10.
Stijn, P.C.E. van.
Data Quality of the Dutch DBC Information System.
Degree: 2012, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/259130
► The purpose of this study was to assess the intrinsic and contextual data quality of the Dutch DBC Information System (DIS) database, which contains all…
(more)
▼ The purpose of this study was to assess the intrinsic and contextual data quality of the Dutch
DBC Information System (DIS) database, which contains all data relevant to the healthcare reimbursements. The intrinsic data quality was examined from a process point of view by determining the organizational and technical issues negatively influencing the data quality. Focus here was on the Dutch hospitals. The contextual data quality was examined as the "fit for use" of these data to evaluate efficiency and patient safety performances of the hospitals. This is currently unexplored, although traditional datasets used for scientific research of these contexts are no longer properly available and alternatives have to be found.
A qualitative research method was used for this research: eighteen field experts were interviewed in nineteen semi-structured expert interviews. The experts represented several relevant stakeholder groups such as the internal hospital administration, the DIS itself, internal and external hospital consultants and scientists specialized in efficiency or patient safety research. To structure the interviews and analyze the results, a data quality framework was constructed based on existing literature.
The interviews were recorded and transcribed. These transcripts served as the resulting (qualitative) dataset and were analyzed with a grounded-theory approach.
The results of these analyses indicated that several organizational and technical issues exist in the hospitals and the
DBC system, negatively influencing the (intrinsic) DIS data quality. Most notably the issues pertain to the registration of the performed activities: the management of the hospital activity codes and aggregation to the national activity (ZA) codes used for DIS. Recommendations are provided to improve these issues and ultimately the DIS data quality. Despite the existing issues, the data are still suited for analysis, if used properly. For the evaluation of efficiency, the data have good potential to analyze the technical efficiency of the production (i.e., provided care). For evaluation of patient safety, data mining approaches can be applied on the data to identify unexpected deviations in the treatment path. This research provides the required business and data understanding for such analyses; the actual performing of these analyses are left for future research.
Advisors/Committee Members: Batenburg, R.S., Ludwig, M.A., Spruit, M.R..
Subjects/Keywords: Healthcare; Hospitals; DBC Information System (DIS); Data Quality; Patient Safety; Efficiency
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APA (6th Edition):
Stijn, P. C. E. v. (2012). Data Quality of the Dutch DBC Information System. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/259130
Chicago Manual of Style (16th Edition):
Stijn, P C E van. “Data Quality of the Dutch DBC Information System.” 2012. Masters Thesis, Universiteit Utrecht. Accessed January 20, 2021.
http://dspace.library.uu.nl:8080/handle/1874/259130.
MLA Handbook (7th Edition):
Stijn, P C E van. “Data Quality of the Dutch DBC Information System.” 2012. Web. 20 Jan 2021.
Vancouver:
Stijn PCEv. Data Quality of the Dutch DBC Information System. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2021 Jan 20].
Available from: http://dspace.library.uu.nl:8080/handle/1874/259130.
Council of Science Editors:
Stijn PCEv. Data Quality of the Dutch DBC Information System. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/259130
Université de Grenoble
11.
Taibi, Mohamed.
Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits.
Degree: Docteur es, Sciences et technologie industrielles, 2012, Université de Grenoble
URL: http://www.theses.fr/2012GRENT011
► Depuis plus de 50 ans, l’industrie de la microélectronique ne cesse d’évoluer afin de répondre à la demande d’augmentation des performances ainsi que des fonctionnalités…
(more)
▼ Depuis plus de 50 ans, l’industrie de la microélectronique ne cesse d’évoluer afin de répondre à la demande d’augmentation des performances ainsi que des fonctionnalités des composants, tout en diminuant les tailles et les prix des produits. Cela est obtenu à ce jour principalement par la réduction des dimensions des composants électroniques. Cependant les dimensions actuelles des transistors atteignent une limitation physique et de nombreux effets parasites émergent. Il devient évident que dans un avenir très proche cet axe de développement ne sera plus envisageable. L’intégration tridimensionnelle apparaît alors comme une solution très prometteuse face à cette problématique de miniaturisation. Cette architecture permet la réalisation de composants plus performants tout en augmentant les fonctionnalités de ces derniers. Son concept consiste à empiler différents circuits de natures éventuellement différentes puis de les interconnecter électriquement à l’aide de connexions verticales. Le collage direct métallique permet en ce sens d’assembler mécaniquement et électriquement deux circuits l’un sur l’autre. Le but de ce travail de thèse est d’étudier le comportement électrique du procédé de collage direct métallique avant de l’intégrer dans un composant actif. On retrouve dans la première partie de ces travaux, la description du jeu de masque ainsi que les intégrations technologiques utilisées, pour réaliser les démonstrateurs 3D permettant les différentes caractérisations électriques de ces interconnexions métalliques. L’évolution de la résistance spécifique de l’interface de collage a été investiguée en fonction de la température de recuit. Puis, la fiabilité électrique de ces interconnexions a été étudiée en analysant leurs comportements face aux risques de dégradation induits par électromigration ou sous contrainte thermique. Des études physico-chimiques ont permis d’analyser les défaillances et de proposer des mécanismes. Pour finir, dans une dernière partie, les étapes technologiques nécessaires à une intégration 3D haute densité type puce à plaque ont été développées et caractérisées.
During 50 years, semiconductor technology has been evolving in exponential rates in both productivity and performance. By following a steady technological path that consists in scaling down transistors and increasing electronic components density, the semiconductor industry was able to meet the increasing demand in high performance, low power consumption and low cost devices. However by constantly shrinking devices geometries and increasing functionalities, semiconductor industry is facing physical limitations in addition to more and more overwhelming parasitic effects. Since further miniaturisation would be made impossible in a near future, 3D integration appears as a promising approach to go beyond planar integration possibilities. This approach allows high performances and various functionalities compounds achievements. 3D integration consists on various chips stacking with vertical and electrical interconnects. The metallic…
Advisors/Committee Members: Fortunier, Roland (thesis director).
Subjects/Keywords: Intégration 3D; Collage direct; Cuivre; Interconnexions; Fiabilité; Électromigration; Stress thermique; Mécanisme; Dégradation; 3D Intégration; Direct bonding; Copper; Interconnects; Reliability; Electromigration; Stress voiding; Mechanism; Failure
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Taibi, M. (2012). Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits. (Doctoral Dissertation). Université de Grenoble. Retrieved from http://www.theses.fr/2012GRENT011
Chicago Manual of Style (16th Edition):
Taibi, Mohamed. “Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits.” 2012. Doctoral Dissertation, Université de Grenoble. Accessed January 20, 2021.
http://www.theses.fr/2012GRENT011.
MLA Handbook (7th Edition):
Taibi, Mohamed. “Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits.” 2012. Web. 20 Jan 2021.
Vancouver:
Taibi M. Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits. [Internet] [Doctoral dissertation]. Université de Grenoble; 2012. [cited 2021 Jan 20].
Available from: http://www.theses.fr/2012GRENT011.
Council of Science Editors:
Taibi M. Intégration 3D haute densité : comportement et fiabilité électrique d'interconnexions métalliques réalisées par collage direct : Three dimensional Stacking of Integrated circuits. [Doctoral Dissertation]. Université de Grenoble; 2012. Available from: http://www.theses.fr/2012GRENT011
12.
Siegert, Laurent.
Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper.
Degree: Docteur es, Electronique, 2013, Université François-Rabelais de Tours
URL: http://www.theses.fr/2013TOUR4016
► Les inductances et interconnexions des composants passifs intégrés pour la téléphonie mobile, sont sujettes à des défaillances dues à l’électromigration et l’auto-échauffement. L’électromigration n’est pas…
(more)
▼ Les inductances et interconnexions des composants passifs intégrés pour la téléphonie mobile, sont sujettes à des défaillances dues à l’électromigration et l’auto-échauffement. L’électromigration n’est pas un risque majeur, au regard des grandes dimensions de cuivre de la technologie étudiée et de l’application. L’auto-échauffement est, en revanche, le principal phénomène qui limite le choix des dimensions des inductances et interconnexions lors de leurs conceptions.L’effet Joule pour les interconnexions et les inductances, a été étudié par le biais de caractérisations et de simulations électrothermiques. La méthodologie des plans d’expériences a été utilisée afin de modéliser le comportement électrothermique des inductances et des interconnexions. Un modèle prédictif de l’auto-échauffement en fonction des dimensions et de l’intensité, a été déterminé permettant d’étudier et de déterminer l’influence de chaque facteur dimensionnel, en régime continu. En radiofréquence, une méthodologie de mesure de l’auto-échauffement a été déterminée permettant sa caractérisation sur des composants sur plaquette. Une corrélation entre les régimes continus et alternatifs ne donnant pas de résultat concluant, une méthodologie de couplage faible, entre un simulateur électromagnétique et électrothermique a été effectuée, permettant la simulation du phénomène d’auto-échauffement sous contrainte radiofréquentielle.
Electrothermal and electromigration failure are likely to occur on copper inductor and interconnection in integrated passive devices for wireless telephony application. Electromigration is not a concern considering the high thickness of the copper and the application but the Joule heating is the main restriction on the dimensions during the component design. Joule heating on interconnections and inductors has been studied by electrothermal characterization and simulation. We have shown that Joule heating depends of several parameters such as material layers parameters and component dimensions. Design of experiments methodology has been used in order to model the inductor and interconnection electrothermal behavior. A self-heating predictive model has been determined allowing the study and the determination of dimensions impact in direct current.In radiofrequency, a self-heating measurement methodology has been determined allowing its characterization at wafer level. A correlation between direct current and radiofrequency is not satisfactory and a weak coupling between an electromagnetic and electrothermal simulator has been performed, providing the self-heating simulation under radiofrequency stress.
Advisors/Committee Members: Gautier, Gaël (thesis director).
Subjects/Keywords: Inductance; Interconnexion; Cuivre; Effet Joule; Modèle prédictif; Régime continu; Régime radiofréquentiel; Inductor; Interconnection; Copper; Joule heating; Predictive model; Direct current; Radiofrequency
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APA ·
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APA (6th Edition):
Siegert, L. (2013). Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper. (Doctoral Dissertation). Université François-Rabelais de Tours. Retrieved from http://www.theses.fr/2013TOUR4016
Chicago Manual of Style (16th Edition):
Siegert, Laurent. “Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper.” 2013. Doctoral Dissertation, Université François-Rabelais de Tours. Accessed January 20, 2021.
http://www.theses.fr/2013TOUR4016.
MLA Handbook (7th Edition):
Siegert, Laurent. “Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper.” 2013. Web. 20 Jan 2021.
Vancouver:
Siegert L. Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper. [Internet] [Doctoral dissertation]. Université François-Rabelais de Tours; 2013. [cited 2021 Jan 20].
Available from: http://www.theses.fr/2013TOUR4016.
Council of Science Editors:
Siegert L. Caractérisation et modélisation électrothermique des interconnections et inductances en cuivre épais : Electrothermal characterization and modeling of interconnects and inductors in thick copper. [Doctoral Dissertation]. Université François-Rabelais de Tours; 2013. Available from: http://www.theses.fr/2013TOUR4016
Tampereen ammattikorkeakoulu
13.
Anttila, Timo Tuomas.
Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat.
Degree: 2010, Tampereen ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/8799
Subjects/Keywords: layout
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APA (6th Edition):
Anttila, T. T. (2010). Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat. (Thesis). Tampereen ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/8799
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Anttila, Timo Tuomas. “Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat.” 2010. Thesis, Tampereen ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/8799.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Anttila, Timo Tuomas. “Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat.” 2010. Web. 20 Jan 2021.
Vancouver:
Anttila TT. Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat. [Internet] [Thesis]. Tampereen ammattikorkeakoulu; 2010. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/8799.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Anttila TT. Varaston layout suunnittelu : Oy Eurohela Trading Ltd:n uudet toimitilat. [Thesis]. Tampereen ammattikorkeakoulu; 2010. Available from: http://www.theseus.fi/handle/10024/8799
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
14.
Lei, Guangyin.
Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging.
Degree: PhD, Materials Science and Engineering, 2010, Virginia Tech
URL: http://hdl.handle.net/10919/37803
► This study focused on the development and evaluation of die-attach material and substrate technology for high-temperature applications. For the die-attach material, a low-temperature sintering technique…
(more)
▼ This study focused on the development and evaluation of die-attach material and substrate technology for high-temperature applications. For the die-attach material, a low-temperature sintering technique enabled by a nanoscale silver paste was developed for attaching large-area (>100 mm2) semiconductor chips. The nanoscale silver paste can be sintered at a much lower temperature (<300 °C) than in the conventional sintering process (>800 °C), and at the same time reached about 80 vol% bulk density. Analyses of the sintered joints by scanning acoustic imaging and electron microscopy showed that the attachment layer had a uniform microstructure with micron-sized porosity with the potential for high reliability under high temperature applications.
We also investigated the effects of a large temperature cycling range on the reliability of
direct bonded aluminum (DBA) substrate. DBA substrates with different metallization were thermally cycled between -55 °C and 250 °C. Unlike with the
DBC substrate, no delamination of aluminum from the aluminum nitride ceramic base-plate was observed for the DBA substrates. However, aluminum surface became roughened during the thermal cycling test. It was believed that in the high-temperature regime, the significant amount of thermomechanical stress and grain-scale deformation would cause recrystallization and grain-boundary sliding in the aluminum layer, which would further lead to the observed increase in surface roughness. The influence of metallization over the aluminum surface on the extent of surface roughness was also characterized.
In addition to evaluating the reliability of nanoscale silver paste and DBA substrate individually, this work also conducted experiments that characterize the compatibility of nanoscale silver paste on DBA substrate in terms of reliability in a high-temperature environment. In the large-area attachment, the sintered silver was found to be very compliant with the deformed aluminum. The device-to-silver and silver-to-substrate interfaces remain intact after up to 800 cycles. No large scale delamination and horizontal cracks were observed. However, some vertical crack lines began to show after certain number of cycles. It was believed that these vertical cracks were caused by the thermomechanical stresses in the sintered silver layer. In addition, with regard to the thermal performance, since most of the heat was generated from the semiconductor devices and were transferred vertically through the die-attach material to substrate, these vertical cracks were also considered more advantageous than horizontal cracks.
Advisors/Committee Members: Lu, Guo-Quan (committeechair), Aning, Alexander O. (committee member), Ngo, Khai D. T. (committee member), Suchicital, Carlos T. A. (committee member), Guido, Louis J. (committee member).
Subjects/Keywords: Nanoscale silver paste; low-temperature sintering; direct bonded aluminum (DBA); thermomechanical reliability; high-temperature electronics; temperature cycling reliability
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APA (6th Edition):
Lei, G. (2010). Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/37803
Chicago Manual of Style (16th Edition):
Lei, Guangyin. “Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging.” 2010. Doctoral Dissertation, Virginia Tech. Accessed January 20, 2021.
http://hdl.handle.net/10919/37803.
MLA Handbook (7th Edition):
Lei, Guangyin. “Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging.” 2010. Web. 20 Jan 2021.
Vancouver:
Lei G. Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging. [Internet] [Doctoral dissertation]. Virginia Tech; 2010. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/10919/37803.
Council of Science Editors:
Lei G. Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging. [Doctoral Dissertation]. Virginia Tech; 2010. Available from: http://hdl.handle.net/10919/37803
Tulane University
15.
Yonglong, Xiao.
Crowded aromatic compounds with unusual shapes and structures.
Degree: 2019, Tulane University
URL: https://digitallibrary.tulane.edu/islandora/object/tulane:110736
► [email protected]
Abstract Condensation of 1,8,13-tris(mercaptomethyl)triptycene and tris(bromomethyl)methane yields the in,in-cyclophane 30 in 8% yield with two inwardly directed methine groups. The X-ray analysis clearly shows…
(more)
▼ [email protected]
Abstract
Condensation of 1,8,13-tris(mercaptomethyl)triptycene and tris(bromomethyl)methane yields the in,in-cyclophane 30 in 8% yield with two inwardly directed methine groups. The X-ray analysis clearly shows that it is the in,in-isomer. The proton NMR spectrum displays an obvious coupling between the two methine hydrogens, which was proved by selectively irradiation one of the apical methine proton. The coupling constant is 2.0 Hz, which is the largest through-space coupling observed so far. Based on DFT and MP2 calculations, the hydrogen-hydrogen non-bonded contact distance is estimated to be 1.50-1.53 Å.
Two in,in-cyclophanes 31 and 56, containing one or two methyl groups in their central cavities, have been synthesized, crystallized and fully characterized by ¹H and ¹³C NMR spectroscopy, MALDI-TOF mass spectrometry, IR spectroscopy, and X-ray crystallography. Cyclophane 31 is the first example of an in,in-cyclophane with a methyl group inside the cavity. The IR spectrum clearly shows that the Si-H stretch is blue-shifted from 2177 cm-1 in an acyclic model to 2269 cm-1. Based on computational studies, cyclophane 31 has a very short non-bonded H – CH3 distance of about 2.30 Å. Cyclophane 56 does not have short non-bonded contact distance, but it is the first example of a macrobicyclic compound that contains two inwardly directed methyl groups.
Three cyclophanes with the formula (C28H31PS3)n, where n = 1 or 2, were isolated from the base-promoted macrocyclization of tris(2-mercaptophenyl)phosphine and tris(3-bromopropyl)methane. Spectroscopic and X-ray analysis showed them to be the in,in-isomer 32, the in,out-isomer 60, and a dimeric in,out,in,out-isomer 61. Compounds 32 and 61 display approximately C3-symmetric and Ci-symmetric structures, respectively, in the crystal, but compound 60 adopts two distinct low-symmetry conformations in the solid state. In each case, the observed structures correspond to the lowest energy conformations of their respective isomers as calculated at the B3PW91/6-31G(d) level of theory. The in,in-isomer 32 displays a close contact between the phosphine in-lone pair and the in-methine group, with through-space spin-spin coupling constants of JPH = 9 Hz and JPC = 24 Hz, the latter of which appears to be the largest reported phosphorus-carbon through-space coupling constant.
Dodecaphenyltetracene (75), the largest perphenylacene yet prepared, was synthesized from known tetraphenylfuran, hexaphenylisobenzofuran, and 1,2,4,5-tetrabromo-3,6-diphenylbenzene in three steps. The X-ray structure of the deep red, highly luminescent 75 shows it to be a D2-symmetric molecule with an end-to-end twist of 97o. The central acene is encapsulated by the peripheral phenyl substituents, and as a result, the molecule is relatively unreactive and even displays reversible electrochemical oxidation and reduction.
Decaphenylphenanthrene (77), the first nonlinear perphenyl polycyclic aromatic hydrocarbon to be prepared so far, has been made from tetraphenylfuran and…
Advisors/Committee Members: Robert, Pascal (Thesis advisor), School of Science & Engineering Chemistry (Degree granting institution).
Subjects/Keywords: cyclophanes; Acenes; Non-bonded contacts
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APA (6th Edition):
Yonglong, X. (2019). Crowded aromatic compounds with unusual shapes and structures. (Thesis). Tulane University. Retrieved from https://digitallibrary.tulane.edu/islandora/object/tulane:110736
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Yonglong, Xiao. “Crowded aromatic compounds with unusual shapes and structures.” 2019. Thesis, Tulane University. Accessed January 20, 2021.
https://digitallibrary.tulane.edu/islandora/object/tulane:110736.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Yonglong, Xiao. “Crowded aromatic compounds with unusual shapes and structures.” 2019. Web. 20 Jan 2021.
Vancouver:
Yonglong X. Crowded aromatic compounds with unusual shapes and structures. [Internet] [Thesis]. Tulane University; 2019. [cited 2021 Jan 20].
Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:110736.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Yonglong X. Crowded aromatic compounds with unusual shapes and structures. [Thesis]. Tulane University; 2019. Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:110736
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Houston
16.
-9412-0246.
The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays.
Degree: MS, Chemistry, 2018, University of Houston
URL: http://hdl.handle.net/10657/5704
► The aromaticity-modulated hydrogen bonding (AMHB) model was applied to understand how “aromaticity gain” influences the association strengths of multipoint hydrogen-bonded arrays and as a driving…
(more)
▼ The aromaticity-modulated hydrogen bonding (AMHB) model was applied to understand how “aromaticity gain” influences the association strengths of multipoint hydrogen-
bonded arrays and as a driving force for electronic complementarity in base pairing. The block-localized wavefuntion (BLW) method was used to quantify the degree of “aromaticity gain” (i.e., the amount of increased cyclic π-electron delocalization) in arrays upon hydrogen bonding. An excellent linear relationship was found between the computed gas-phase association free energies and the amount of increased cyclic π-electron delocalization energies of 26 triply (r = 0.940) and 20 quadruply (r = 0.959). Computational analyses for 57 hydrogen-
bonded base pairs also document excellent linear correlation between the gas-phase association energies and the degree of aromaticity gain of paired bases (r = 0.949). Hydrogen bonding interactions can polarize the ring π-electrons to increase (or decrease) cyclic 4n + 2 π-electron delocalization, resulting in aromaticity gain (or loss) in complexes, and become strengthened (or weakened). Our findings point to important limitations of the secondary electrostatic interaction (SEI) model, suggesting the importance of considering aromaticity gain in arrays as a relevant factor for determining the stability of multipoint hydrogen-
bonded complexes. This work shows that aromaticity gain increases the inherent association strengths of hydrogen-
bonded complexes. Potential implications of the AMHB model for improving nucleic acid force-fields and for designing robust unnatural base pairs are also discussed.
Advisors/Committee Members: Wu, Judy I-Chia (advisor), Brgoch, Jakoah (committee member), Guloy, Arnold M. (committee member), May, Jeremy A. (committee member), Briggs, James M. (committee member).
Subjects/Keywords: Aromaticity; Hydrogen-bonded arrays
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APA (6th Edition):
-9412-0246. (2018). The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/5704
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
-9412-0246. “The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays.” 2018. Masters Thesis, University of Houston. Accessed January 20, 2021.
http://hdl.handle.net/10657/5704.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
-9412-0246. “The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays.” 2018. Web. 20 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
-9412-0246. The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays. [Internet] [Masters thesis]. University of Houston; 2018. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/10657/5704.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
-9412-0246. The Effects of Aromaticity Gain in Multipoint Hydrogen-Bonded Arrays. [Masters Thesis]. University of Houston; 2018. Available from: http://hdl.handle.net/10657/5704
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Universidade Federal do Maranhão
17.
PAULINO ALMEIDA CANTANHÊDE FILHO.
UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS.
Degree: 2005, Universidade Federal do Maranhão
URL: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=258
► Guidelines for evaluation and selection of COTS (Commercial-Off-The-Shelf) products. Comes a methodology for the Development based on COTS (DBC) in the Requirements Engineering, being approached…
(more)
▼ Guidelines for evaluation and selection of COTS (Commercial-Off-The-Shelf) products. Comes a methodology for the Development based on COTS (DBC) in the Requirements Engineering, being approached the evaluation phases and selection of DBC. The method is divided in three phases, that are divided in activities orienting by actions that seek to the quality of the information for a socket of decision in an automated and oriented way for defined evaluation criteria during the Requirements Engineering. This approach divide the requirements in three levels: Fundamental, Contractual and Desirable. The functional and no-functional requirements are treated in an equalitarian way.
Este trabalho apresenta diretrizes para avaliação e seleção de produtos COTS (Commercial- Off-The-Shelf). Apresenta-se uma metodologia para o Desenvolvimento Baseado em COTS (DBC) na Engenharia de Requisitos, abordando-se as fases de avaliação e seleção do DBC. O método está dividido em três fases, que por sua vez estão divididas em atividades direcionadas por ações que visam à qualidade das informações para uma tomada de decisão de forma automatizada e orientada por critérios de avaliação definidos durante a Engenharia de Requisitos. Esta abordagem divide os requisitos em três níveis, são eles: Fundamental, Contratual e Desejável. Os requisitos funcionais e não-funcionais são tratados de forma igualitária.
Advisors/Committee Members: Zair Abdelouahab.
Subjects/Keywords: COTS (Commercial-Off-The-Shelf); Desenvolvimento Baseado em COTS (DBC); Requirements; ENGENHARIA DE SOFTWARE; Development based on COTS (DBC); COTS (Commercial-Off-The-Shelf); Requisitos
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APA (6th Edition):
FILHO, P. A. C. (2005). UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS. (Thesis). Universidade Federal do Maranhão. Retrieved from http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=258
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
FILHO, PAULINO ALMEIDA CANTANHÊDE. “UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS.” 2005. Thesis, Universidade Federal do Maranhão. Accessed January 20, 2021.
http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=258.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
FILHO, PAULINO ALMEIDA CANTANHÊDE. “UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS.” 2005. Web. 20 Jan 2021.
Vancouver:
FILHO PAC. UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS. [Internet] [Thesis]. Universidade Federal do Maranhão; 2005. [cited 2021 Jan 20].
Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=258.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
FILHO PAC. UM MÉTODO PARA SELEÇÃO DE SOFTWARE NA ENGENHARIA DE REQUISITOS. [Thesis]. Universidade Federal do Maranhão; 2005. Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=258
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
18.
Ji, Shu.
High Frequency, High Power Density GaN-Based 3D Integrated POL Modules.
Degree: MS, Electrical Engineering, 2013, Virginia Tech
URL: http://hdl.handle.net/10919/19286
► The non-isolated POL converters are widely used in computers, telecommunication systems, portable electronics, and many other applications. These converters are usually constructed using discrete components,…
(more)
▼ The non-isolated POL converters are widely used in computers, telecommunication systems, portable electronics, and many other applications. These converters are usually constructed using discrete components, and operated at a lower frequency around 200 ~ 600 kHz to achieve a decent efficiency at the middle of 80\'s%. The passive components, such as inductors and capacitors, are bulky, and they occupy a considerable foot-print. As the power demands increase for POL converters and the limited real estate of the mother board, the POL converters must be made significantly smaller than what they have demonstrated to date. To achieve these goals, two things have to happen simultaneously. The first is a significant increase in the switching frequency to reduce the size and weight of the inductors and capacitors. The second is to integrate passive components, especially magnetics, with active components to realize the needed power density. Today, this concept has been demonstrated at a level less than 5A and a power density around 300-700W/in3 by using silicon-based power semiconductors. This might address the need of small hand-held equipment such as PDAs and smart phones. However, it is far from meeting the needs for applications, such as netbook, notebook, desk-top and server applications where tens and hundreds of amperes are needed. After 30 years of silicon MOSFET development, the silicon has approached its theoretical limits. The recently emerged GaN transistors as a possible candidate to replace silicon devices in various power conversion applications. GaN devices are high electron mobility transistors (HEMT) and have higher band-gap, higher electron mobility, and higher electron velocity than silicon devices, and offer the potential benefits for high frequency power conversions. By implementing the GaN device, it is possible to build the POL converter that can achieve high frequency, high power density, and high efficiency at the same time. GaN technology is in its early stage; however, its significant gains are projected in the future. The first generation GaN devices can outperform the state-of-the-art silicon devices with superior FOM and packaging. The objective of this work is to explore the design of high frequency, high power density 12 V input POL modules with GaN devices and the 3D integration technique. This work discusses the fundamental differences between the enhancement mode and depletion mode GaN transistors, the effect of parasitics on the performance of the high frequency GaN POL, the 3D technique to integrate the active layer with LTCC magnetic substrate, and the thermal design of a high density module using advanced substrates with improved thermal conductivity. The hardware demonstrators are two 12 V to 1.2 V highly integrated 3D POL modules, the single phase 10 A module and two phase 20 A module, all built with depletion mode GaN transistors and low profile LTCC inductors.
Advisors/Committee Members: Lee, Fred C. (committeechair), Boroyevich, Dushan (committee member), Mattavelli, Paolo (committee member).
Subjects/Keywords: GaN transistors; POL converter; 3D integration; Parasitics; PCB & DBC substrates; LTCC inductor
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Export
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APA (6th Edition):
Ji, S. (2013). High Frequency, High Power Density GaN-Based 3D Integrated POL Modules. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/19286
Chicago Manual of Style (16th Edition):
Ji, Shu. “High Frequency, High Power Density GaN-Based 3D Integrated POL Modules.” 2013. Masters Thesis, Virginia Tech. Accessed January 20, 2021.
http://hdl.handle.net/10919/19286.
MLA Handbook (7th Edition):
Ji, Shu. “High Frequency, High Power Density GaN-Based 3D Integrated POL Modules.” 2013. Web. 20 Jan 2021.
Vancouver:
Ji S. High Frequency, High Power Density GaN-Based 3D Integrated POL Modules. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/10919/19286.
Council of Science Editors:
Ji S. High Frequency, High Power Density GaN-Based 3D Integrated POL Modules. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/19286
University of Newcastle
19.
Cerny, Robert.
A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances.
Degree: PhD, 2013, University of Newcastle
URL: http://hdl.handle.net/1959.13/940849
► Research Doctorate - Doctor of Philosophy (PhD)
In 2004 and again in 2009, the Cochrane collaboration reviewed orthodontic clinical practice on retention. The review found;…
(more)
▼ Research Doctorate - Doctor of Philosophy (PhD)
In 2004 and again in 2009, the Cochrane collaboration reviewed orthodontic clinical practice on retention. The review found; “there are insufficient data on which to base our clinical practice on retention at present”. The Aims of this study were two; the first was to review the effectiveness, durability and dental health impacts of bonded retainers (BRs) that have been in place for more than 15 years. The second was to discover the opinions of dentists and patients on comparing BRs to removable retainers (RRs). Method This was a 15 year retrospective study which reviewed 61 patients who had undergone conventional fixed appliance treatment with the chief researcher (CR) prior to 1993. Study sample size calculations required 44 BR study group and 44 RR control group patients for a valid analysis. Overall, 46 patients had experience with 55 BRs and 43 had experience with 55 RRs; 28 patients had worn both a BR and a RR at the same time and were thereby included as paired observations in both groups. All 61 participants completed a specifically designed questionnaire relative to their orthodontic treatment experience. They also underwent a clinical examination, had a series of intra-oral and extra-oral digital images and an OPG radiograph taken. Seventy one dentists who had referred patients to the CR over the previous 25 years were sent a confidential questionnaire; to be completed anonymously for their opinions on RRs and BRs. Statistical analyses were carried out using SPSS V16 (2008) and statistical significance was set at the 0.05 level. A Newcastle University statistician worked with the CR in analysing the results and compared them with those of four independent specialist examiners using Bland- Altman plots and Spearman’s rank correlation coefficient (SCC) analyses. Results The CR’s measures were found to be reliable and valid. After 15 years, the BRs were 100% effective at maintaining acceptable alignment while 53% of the control group had unacceptable alignment. The BRs had a unit composite bond/wire fracture rate of 0.58% per annum. The BRs did not produce any clinically significant negative dental health impacts. The majority of patients and dentists rated BRs as superior to RRs. Conclusions After 15 years, BRs were found to be adequately durable, effective at stabilising the anterior dentition and they did not produce adverse dental health effects. The majority of patients felt BRs improved their quality of life.
Advisors/Committee Members: University of Newcastle. Faculty of Health, School of Health Sciences.
Subjects/Keywords: permanent bonded retention; fixed orthodontic appliances; bonded retainers; removable retainers
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APA ·
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APA (6th Edition):
Cerny, R. (2013). A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/940849
Chicago Manual of Style (16th Edition):
Cerny, Robert. “A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances.” 2013. Doctoral Dissertation, University of Newcastle. Accessed January 20, 2021.
http://hdl.handle.net/1959.13/940849.
MLA Handbook (7th Edition):
Cerny, Robert. “A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances.” 2013. Web. 20 Jan 2021.
Vancouver:
Cerny R. A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances. [Internet] [Doctoral dissertation]. University of Newcastle; 2013. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1959.13/940849.
Council of Science Editors:
Cerny R. A long term evaluation of permanent bonded retention after treatment with fixed orthodontic appliances. [Doctoral Dissertation]. University of Newcastle; 2013. Available from: http://hdl.handle.net/1959.13/940849
Univerzitet u Beogradu
20.
Janković, Marija M., 1981-.
Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine.
Degree: Fakultet za fizičku hemiju, 2013, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:5754/bdef:Content/get
► Fizička hemija - Fizička hemija životne sredine / Physical Chemistry - Environmental Physical Chemistry
Tritijum (3H), radioaktivni izotop vodonika, koji je dospeo u prirodu 60-tih…
(more)
▼ Fizička hemija - Fizička hemija životne sredine /
Physical Chemistry - Environmental Physical
Chemistry
Tritijum (3H), radioaktivni izotop vodonika, koji
je dospeo u prirodu 60-tih godina veštačkim putem iz nuklearnih
eksplozija i nuklearne industrije, povećao je prirodni sadržaj ovog
radionuklida u atmosferi i u vodama iz životne sredine. Opasnost od
zagađenja voda i potreba da se kontroliše stepen tog zagađenja bio
je i danas je sve više jedan od najvećih razloga proučavanja
količine i načina dolaženja 3H u vode. Padavine predstavljaju
glavni put za eliminaciju tritijuma iz atmosfere, bilo da je
stvoren prirodnim ili veštačkim putem. Putem padavina, tritijum
dospeva u površinske vode. U Beogradu se, u Institutu za nuklearne
nauke Vinča, od 1976. god. vrši ispitivanje sadržaja tritijuma u
sakupljenim uzorcima padavina i površinskih voda. Zbog postojanja
teškovodnih istraživačkih reaktora u Institutu za nuklearne nauke
"Vinča" kao potencijalnih emitera tritijuma, potrebno je pratiti
distribuciju tritijuma u padavinama u samom Institiutu, a takođe i
na drugim referentnim meteorološkim stanicama (Zeleno Brdo i Usek).
Usled moguće kontaminacije reka Save i Dunava tritijumom zbog niza
nuklearnih elektrana na uzvodnim obalama ovih reka, važno je
ispitivati njegov sadržaj, naročito zbog toga što se Beograd
snabdeva vodom za piće iz Save i Dunava. Ispitivanje sadržaja
tritijuma u potoku Mlaka, koji izvire u krugu Instituta Vinča je
značajno, jer se potok uliva u Dunav (u Vinči), preko reke
Bolečice. Potok protiče pored istraživačkog reaktora u Institutu
Vinča, tako da može doći do kontaminacije Dunava. U svim uzorcima
voda koji su analizirani u ovoj doktorskoj disertaciji, praćena je
vremenska promena koncentracije tritijuma u dugom vremenskom
intervalu od 1985 – 2009. godine. S obzirom na činjenicu da se
srednja koncentracija tritijuma u padavinama i u površinskim vodama
na severnoj hemisferi kreće se od 0,6 Bq l-1 do 1,19 Bq l-1, svi
uzorci su elektrolitički obogaćeni u cilju povećanja koncentracije
i kao takvi su mereni na tečnom scintilacionom detektoru LKB Wallac
1219 RackBeta. Određeni su parametri koji definišu sam proces
elektrolize, separacioni faktor, parametar obogaćenja i faktor
obogaćenja. Izračunati su mesečni i kvartalni sezonski indeksi koji
ukazuju na pojavu maksimalnih i minimalnih vrednosti koncentracije
tritijuma u godišnjim dobima.
Advisors/Committee Members: Ignjatović, Ljubiša, 1963-.
Subjects/Keywords: tritium; electrolysis; precipitation; surface waters;
symmetrical index
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APA (6th Edition):
Janković, Marija M., 1. (2013). Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:5754/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Janković, Marija M., 1981-. “Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine.” 2013. Thesis, Univerzitet u Beogradu. Accessed January 20, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:5754/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Janković, Marija M., 1981-. “Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine.” 2013. Web. 20 Jan 2021.
Vancouver:
Janković, Marija M. 1. Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine. [Internet] [Thesis]. Univerzitet u Beogradu; 2013. [cited 2021 Jan 20].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:5754/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Janković, Marija M. 1. Primena indeksa simetrije za praćenje vremenske promene
koncentracije tritijuma u vodama iz životne sredine. [Thesis]. Univerzitet u Beogradu; 2013. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:5754/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Manitoba
21.
Strom, Kerry.
An exploratory study of family communication using the concepts complimentary and symmetrical interaction.
Degree: Social Work, 2014, University of Manitoba
URL: http://hdl.handle.net/1993/23382
► This research project was carried out in Winnipeg Manitoba between October, 1970 and April, 1971. It is an exploratory study in which the authors used…
(more)
▼ This research project was carried out in Winnipeg Manitoba between October, 1970 and April, 1971. It is an exploratory study in which the authors used the concepts of complementary and
symmetrical communication to code family interaction. Of the twenty-two families who were contacted through the Psychiatric Out-Patient Department of the Winnipeg General Hospital, nine consented to take part in the study. Complementary and
symmetrical communication interaction elicited by a structured interview was tape recorded and coded for the two concepts. The results were correlated with the descriptions of the patient's behavior as recorded on the hospital charts. It was found that family interaction could be coded as
symmetrical or complementary and that there was some relationship between communication patterns, descriptions of behaviour and the spouse who was labeled as the identified patient.
Advisors/Committee Members: Erickson, G. (supervisor), N/A (examiningcommittee).
Subjects/Keywords: family interaction; complementary communication; symmetrical communication
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APA (6th Edition):
Strom, K. (2014). An exploratory study of family communication using the concepts complimentary and symmetrical interaction. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/23382
Chicago Manual of Style (16th Edition):
Strom, Kerry. “An exploratory study of family communication using the concepts complimentary and symmetrical interaction.” 2014. Masters Thesis, University of Manitoba. Accessed January 20, 2021.
http://hdl.handle.net/1993/23382.
MLA Handbook (7th Edition):
Strom, Kerry. “An exploratory study of family communication using the concepts complimentary and symmetrical interaction.” 2014. Web. 20 Jan 2021.
Vancouver:
Strom K. An exploratory study of family communication using the concepts complimentary and symmetrical interaction. [Internet] [Masters thesis]. University of Manitoba; 2014. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1993/23382.
Council of Science Editors:
Strom K. An exploratory study of family communication using the concepts complimentary and symmetrical interaction. [Masters Thesis]. University of Manitoba; 2014. Available from: http://hdl.handle.net/1993/23382
University of Otago
22.
Galland, William.
Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
Degree: 2011, University of Otago
URL: http://hdl.handle.net/10523/1375
► This project is concerned with the process of initiating layout changes in a New Zealand business. The business that is being investigated, Cableways, operates a…
(more)
▼ This project is concerned with the process of initiating layout changes in a New Zealand business. The business that is being investigated, Cableways, operates a bar, a bottle store, a bistro and a gaming room. The bar and gaming room are the focus of this report in with regards to layout changes.
The process started with detailed planning and evaluation of the existing setting. A layout primitive was initially constructed that provided an insight into the current layout of the business. A model was then used to facilitate changes in layout. It began with establishing the likely future considerations that will impact on the operation of the business. The physical functions and their needs are determined from the layout primitive. The space requirements of each function are analysed before the relationship between the patrons that use them is discussed.
Using the original layout primitive of Cableways, and the information gathered above, four different designs were constructed. All four provided different scenarios of layout plans, with the aim of improving current layout. They were evaluated on their ability to meet certain requirements, and the most appropriate design was chosen. It is from this process that option three is recommended for the final step of the process, populating the layout.
There are three reasons why option three has been chosen. Firstly it better satisfies the needs of Cableways when compared to the other options. Secondly it meets the three critical aspects of layout decisions suggested in the literature of planning that is strategic, and in unison with the operations strategy. Thirdly the potential benefits to be gained from this option far out weigh the remaining three.
The design of option three (provided in figure 8) needs to be accurately reproduced to represent measurements and scale. From this a feasibility study can be undertaken to determine whether the option is suitable. If such a study does not identify any problems with the design, then it is recommended that construction begin at a time that is most suitable. The resulting changes should lead to a competitive advantage for Cableways.
Subjects/Keywords: Cableways;
layout;
layout primitive;
appropriate design
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APA ·
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Export
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APA (6th Edition):
Galland, W. (2011). Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
(Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/1375
Chicago Manual of Style (16th Edition):
Galland, William. “Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
” 2011. Masters Thesis, University of Otago. Accessed January 20, 2021.
http://hdl.handle.net/10523/1375.
MLA Handbook (7th Edition):
Galland, William. “Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
” 2011. Web. 20 Jan 2021.
Vancouver:
Galland W. Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
[Internet] [Masters thesis]. University of Otago; 2011. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/10523/1375.
Council of Science Editors:
Galland W. Changing layout at Cableways - A project that investigates the process invoked-with changing Layout in a small- New Zealand business.
[Masters Thesis]. University of Otago; 2011. Available from: http://hdl.handle.net/10523/1375
Cornell University
23.
Bigalow, Lauren.
Effects Of Open-Plan Workspace Layout On Creativity.
Degree: M.S., Human-Environment Relations, Human-Environment Relations, 2015, Cornell University
URL: http://hdl.handle.net/1813/40967
► The question of how the physical environment of a workspace can impact creativity has been approached from the standpoint of specific, concrete physical variables. To…
(more)
▼ The question of how the physical environment of a workspace can impact creativity has been approached from the standpoint of specific, concrete physical variables. To date, no research has categorized different layouts of open-plan offices or examined the different layouts affects on creative cognition and behavior. Consequently, the present study addressed this gap by comparing participants' creative cognition and behavior outcomes in the same room, arranged either homogeneously (low variety, low differentiation, and rectilinear shapes) or heterogeneously (high variety, high differentiation, and organic shapes). Creativity was measured through a similarity finding task and a brainstorming task. Participants' perceptions of the spaces, and what activities should happen in the spaces, were also recorded. A proposed mechanism of the
layout influencing exploration and curiosity was explored with surveys. As was expected, participants in the heterogeneous space showed more abstract thinking than participants in the homogeneous space. Creative generation in the brainstorming task was unaffected by the difference in
layout. Participants in the heterogeneous condition selected more unusual uses for the space than participants in the homogeneous room. Limitations and a future research direction are discussed.
Advisors/Committee Members: Hua,Ying (chair), Goncalo,Jack A. (committee member).
Subjects/Keywords: creativity; workspace; layout
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APA (6th Edition):
Bigalow, L. (2015). Effects Of Open-Plan Workspace Layout On Creativity. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/40967
Chicago Manual of Style (16th Edition):
Bigalow, Lauren. “Effects Of Open-Plan Workspace Layout On Creativity.” 2015. Masters Thesis, Cornell University. Accessed January 20, 2021.
http://hdl.handle.net/1813/40967.
MLA Handbook (7th Edition):
Bigalow, Lauren. “Effects Of Open-Plan Workspace Layout On Creativity.” 2015. Web. 20 Jan 2021.
Vancouver:
Bigalow L. Effects Of Open-Plan Workspace Layout On Creativity. [Internet] [Masters thesis]. Cornell University; 2015. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/1813/40967.
Council of Science Editors:
Bigalow L. Effects Of Open-Plan Workspace Layout On Creativity. [Masters Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/40967
24.
Miettinen, Tiina.
Yhteishankejulkaisu Satakunnan sairaanhoitopiirille.
Degree: 2016, Satakunnan ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/115051
► Toiminnallisen opinnäytetyöni aiheena oli suunnitella ja toteuttaa Satakunnan sairaanhoitopiirille yhteishankejulkaisu hankkeille Yhteisvoimin kotona ja Pois syrjästä. Julkaisusta tehtiin kaksi versiota, painettu- ja verkkolehti. Tässä opinnäytetyössä…
(more)
▼ Toiminnallisen opinnäytetyöni aiheena oli suunnitella ja toteuttaa Satakunnan sairaanhoitopiirille yhteishankejulkaisu hankkeille Yhteisvoimin kotona ja Pois syrjästä. Julkaisusta tehtiin kaksi versiota, painettu- ja verkkolehti. Tässä opinnäytetyössä teoria käsittelee pääsääntöisesti painettavan julkaisun työstöä ja siihen apuna käytettyä teoriaa. Verkkolehti muokattiin suoraan painettavasta versiosta interaktiiviseksi pdf-tiedostoksi, joka julkaistiin Satakunnan sairaanhoitopiirin nettisivuilla. Opinnäytetyö ei kerro kaikista painotyöhön liittyvistä yksityiskohdista, vaan siinä esitellään juuri yhteishankejulkaisun tekemiseen liittyviä teorioita.
The subject of my functional thesis was to design and process a publish to the Satakunnan sairaanhoitopiiri. The publish present projects Yhteisvoimin kotona and Pois syrjästä. This publication was made in two versions – printed and online magazine. This thesis theory deals mostly press related matters since online-version is based on print-version only that it is chanced to interactive pdf-file which was published in the Satakunnan sairaanhoitopiiri´s web-site. The thesis does not tell every detail that includes press but only things that were relevant to this joint project publication.
Advisors/Committee Members: Satakunnan ammattikorkeakoulu.
Subjects/Keywords: kuvankäsittely; layout; typografia
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APA (6th Edition):
Miettinen, T. (2016). Yhteishankejulkaisu Satakunnan sairaanhoitopiirille. (Thesis). Satakunnan ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/115051
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Miettinen, Tiina. “Yhteishankejulkaisu Satakunnan sairaanhoitopiirille.” 2016. Thesis, Satakunnan ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/115051.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Miettinen, Tiina. “Yhteishankejulkaisu Satakunnan sairaanhoitopiirille.” 2016. Web. 20 Jan 2021.
Vancouver:
Miettinen T. Yhteishankejulkaisu Satakunnan sairaanhoitopiirille. [Internet] [Thesis]. Satakunnan ammattikorkeakoulu; 2016. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/115051.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Miettinen T. Yhteishankejulkaisu Satakunnan sairaanhoitopiirille. [Thesis]. Satakunnan ammattikorkeakoulu; 2016. Available from: http://www.theseus.fi/handle/10024/115051
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
25.
Lukka, Teemu.
Sataservice Oy: tuotantotilojen layout- suunnittelu.
Degree: 2015, Satakunnan ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/88955
► Tämän opinnäytetyön tarkoituksena oli tehdä layout-suunnitelma Sataservice Oy:lle. Sataservicelle on valmistunut uusi 1000 m² hallitila, johon yrityksen koko sähkökonehuollon osasto on siirtymässä. Muutoksella on vaikutus…
(more)
▼ Tämän opinnäytetyön tarkoituksena oli tehdä layout-suunnitelma Sataservice Oy:lle. Sataservicelle on valmistunut uusi 1000 m² hallitila, johon yrityksen koko sähkökonehuollon osasto on siirtymässä. Muutoksella on vaikutus koko tehtaan layouttiin. Tavoitteena layout-suunnitelmalla oli saavuttaa yritykselle tehokkaammat, siistimmät ja turvallisemmat tilat. Laajentunut tila mahdollisti näin ollen hyllymäärien kasvattamisen, selkeämmät kulkuväylät, paremmat työskentelytilat, selkeämmän koneiden sijoittelen ja yhtenäisemmät jätteiden lajittelupisteet. Toteuttamisen apuna käytettiin sekä primäärisiä, että sekundäärisiä lähteitä. Primäärilähteet koostuivat haastatteluista, sekä käytännön havainnoista. Sekundäärilähteet taas koostuivat kirja- ja internetlähteistä. Yrityksellä oli myös valmiina layoutpohja, johon oma suunnitelma rakennettiin. Oman hallilayoutin luominen käsitti koneiden, hyllyjen, kulkureittien ja turvamerkintöjen mallintamisen. Tämän jälkeen ne paikoitettiin oikeille paikoille. Lopulta syntyi valmis hallilayout, joka toteutettiin autocad-mallinnusohjelmaa apuna käyttäen. Hallilayout suunniteltiin yhdessä yrityksen kanssa. Siinä on otettu huomioon niin yrityksen näkökanta, kuin omakin ideointi. Valmis hallilayout otetaan pääpiirteittäin käyttöön yrityksessä lähitulevaisuudessa.
The purpose of this thesis was to create a layout plan for Sataservice Oy. Sataservice Oy has completed a new 1000 m² hall space where the company's entire electricity machine maintenance is moving. This change has an impact on the entire factory layout. The main objective of layout plan is to achieve the company more efficient, cleaner and safety. Therefore, the expanded area enabled to increase the amounts of shelves, clearer passageways, better working facilities, clearer machine layout and more integrated waste sorting points. Both primary, and secondary sources, were used during implementation. The primary sources consisted of interviews, as well as practical observations. Secondary sources consisted of books and internet sources. I also used company’s own layout plan where I build my own final layout. My own creating for hall-layout comprised of modeling machines, shelves, passage-ways and safety markings. After this, all components were moved to the right places. In the end, I made a final hall-layout, which was conducted with autocad modeling software. Hall-layout was designed in conjunction with the company. It takes into account both the company’s point of view and my own ideas. Company mostly uses the final hall-layout in near future.
Advisors/Committee Members: Satakunnan ammattikorkeakoulu.
Subjects/Keywords: layout; varastointi; tuotanto
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APA (6th Edition):
Lukka, T. (2015). Sataservice Oy: tuotantotilojen layout- suunnittelu. (Thesis). Satakunnan ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/88955
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lukka, Teemu. “Sataservice Oy: tuotantotilojen layout- suunnittelu.” 2015. Thesis, Satakunnan ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/88955.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lukka, Teemu. “Sataservice Oy: tuotantotilojen layout- suunnittelu.” 2015. Web. 20 Jan 2021.
Vancouver:
Lukka T. Sataservice Oy: tuotantotilojen layout- suunnittelu. [Internet] [Thesis]. Satakunnan ammattikorkeakoulu; 2015. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/88955.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lukka T. Sataservice Oy: tuotantotilojen layout- suunnittelu. [Thesis]. Satakunnan ammattikorkeakoulu; 2015. Available from: http://www.theseus.fi/handle/10024/88955
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Rintala, Henri.
Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy.
Degree: 2012, Seinäjoen ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/42427
► Tämän opinnäytetyön tavoitteena oli suunnitella kauhavalaisen, sänkyjä ja sohvia valmistavan huonekaluyrityksen, Unico Finland Oy:n, varastotilojen uusi layout. Työ rajattiin koskemaan ainoastaan varastotiloja, joten ulkopuolelle jätettiin…
(more)
▼ Tämän opinnäytetyön tavoitteena oli suunnitella kauhavalaisen, sänkyjä ja sohvia valmistavan huonekaluyrityksen, Unico Finland Oy:n, varastotilojen uusi layout. Työ rajattiin koskemaan ainoastaan varastotiloja, joten ulkopuolelle jätettiin muun muassa tuotantotilat. Työn avulla pyrittiin selkeyttämään varastotilojen järjestystä ja tehostamaan tuotteiden keräilyvaihetta.
Teoreettinen viitekehys koostuu kahdesta osasta. Ensimmäisessä osassa selvitetään varastoinnin taustaa ja merkitystä yritystoiminnassa. Toisessa osassa käydään läpi layoutin suunnittelu. Työn kannalta varastoinnin ja layoutin teoriatiedolla on yhtä merkittävä rooli. Työn case-osassa selvitetään toimeksiantajan varastotilojen layout-suunnitelmat, jotka tehtiin lähettämöstä, varastosta ja remontoidusta Kaarihallista.
Työn tuloksena varastotiloihin laadittiin asiakasryhmittäin ja ABC-analyysiä hyödyntäen tuotteille omat alueet, joihin tuotteita voidaan sijoittaa hyllyissä. Varsinaisia kiinteitä hyllypaikkoja ei kuitenkaan määritelty, koska tuotteiden määrät varastotiloissa vaihtelevat suuresti tilauskannan mukaan. Työn avulla varastotilojen layoutista saatiin toimiva ja looginen ratkaisu, josta on hyötyä yritykselle myös taloudellisesti. Työtä voidaan käyttää hyväksi myös muissa samantyyppisissä kohteissa.
The purpose of this thesis was to design a new layout for Unico Finland Ltd, a bed and sofa manufacturer based in Kauhava, Western Finland. The layout plans were made only for the storage facilities. The main focus of the thesis was to clarify the order of goods in the warehouse and to enhance the efficacy of the collecting phase of goods.
The theoretical framework consists of two sections, which both have equally important roles. The first part deals with the theory of warehousing, and the second part focuses on layout planning. There are three layout plans in the thesis, one for the dispatch department, one for the warehouse, and one for the newly renovated Kaarihalli.
As a result of the thesis, a new layout was designed for Unico Finland Ltd. The new layout covers the whole warehouse area. The areas and shelves for each product were defined by customer groups, using the ABC analysis. No fixed shelves were defined, because the number of products depends on orders, varying therefore a great deal. The new layout is a functional and a logic solution, and the company will benefit from it financially. The entire thesis can also be utilized when designing other similar warehouse layouts.
Advisors/Committee Members: Seinäjoen ammattikorkeakoulu.
Subjects/Keywords: varastointi; layout; huonekaluteollisuus
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APA ·
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Manager
APA (6th Edition):
Rintala, H. (2012). Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy. (Thesis). Seinäjoen ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/42427
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rintala, Henri. “Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy.” 2012. Thesis, Seinäjoen ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/42427.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rintala, Henri. “Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy.” 2012. Web. 20 Jan 2021.
Vancouver:
Rintala H. Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy. [Internet] [Thesis]. Seinäjoen ammattikorkeakoulu; 2012. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/42427.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rintala H. Varastotilojen layoutsuunnittelu huonekalualan yritykselle : Unico Finland Oy. [Thesis]. Seinäjoen ammattikorkeakoulu; 2012. Available from: http://www.theseus.fi/handle/10024/42427
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
27.
Aaltola, Tommi.
Materiaalivirtojen hallinta Narvi Oy:ssä.
Degree: 2011, Satakunnan ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/28792
► Tämän opinnäytetyön aiheena on materiaalivirtojen hallinta Narvi Oy:ssä. Tutkimus suoritettiin, koska yritys halusi korjata materiaalivirtojen pullonkauloja. Työssä käsitellään teoriaa, koskien varastointia, layoutia, valmistustekniikkaa ja kuljetustaloutta.…
(more)
▼ Tämän opinnäytetyön aiheena on materiaalivirtojen hallinta Narvi Oy:ssä. Tutkimus suoritettiin, koska yritys halusi korjata materiaalivirtojen pullonkauloja.
Työssä käsitellään teoriaa, koskien varastointia, layoutia, valmistustekniikkaa ja kuljetustaloutta. Haastattelemalla työntekijöitä ja työnjohtoa suullisesti ja kirjallisesti saatiin hyvä läpileikkaus yrityksen materiaalivirtojen yleisestä tasosta ja parannusehdotuksista. Välivarastoinnin ja kokoonpanolinjan uudelleen organisointi, kuljetuskustannukset yrityksen ja alihankkijoiden välillä sekä niistä saatujen tulosten analysointi ovat tässä opinnäytetyössä käsiteltyjä aiheita. Työn tuloksena syntyi ehdotuksia materiaalivirtojen tehokkuuden edistämiseksi. Työssä esiteltyjen tulosten käyttöönotto mahdollistaa materiaalihallinnon jatkuvan kehityksen myös tulevaisuudessa.
The topic of this thesis was to analyze material flows in Narvi Oy. The research was established because the company had a need to locate and fix the bottlenecks in the material flow. The theory part of the thesis is dealing with warehousing, layout, production processes and transporting. By conducting interviews on employees and work management a good cross-section of the company’s material flows and its improvisation ideas was established. This thesis concentrates especially on organizing semi-finished goods inventories and redesigning the assembly line. Also the costs of transporting between the company and its subsidiaries are studied. The results of these topics are included in this thesis. As a result of the work new suggestions for improving the material flow efficiency came up. Commissioning the presented results allows continuous development of the material administration also in the future.
Advisors/Committee Members: Satakunnan ammattikorkeakoulu.
Subjects/Keywords: logistiikka; kustannukset; layout
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APA (6th Edition):
Aaltola, T. (2011). Materiaalivirtojen hallinta Narvi Oy:ssä. (Thesis). Satakunnan ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/28792
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Aaltola, Tommi. “Materiaalivirtojen hallinta Narvi Oy:ssä.” 2011. Thesis, Satakunnan ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/28792.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Aaltola, Tommi. “Materiaalivirtojen hallinta Narvi Oy:ssä.” 2011. Web. 20 Jan 2021.
Vancouver:
Aaltola T. Materiaalivirtojen hallinta Narvi Oy:ssä. [Internet] [Thesis]. Satakunnan ammattikorkeakoulu; 2011. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/28792.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Aaltola T. Materiaalivirtojen hallinta Narvi Oy:ssä. [Thesis]. Satakunnan ammattikorkeakoulu; 2011. Available from: http://www.theseus.fi/handle/10024/28792
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Leino, Toni.
Layout-suunnittelu tuotantotilojen laajennukseen.
Degree: 2014, Satakunnan ammattikorkeakoulu
URL: http://www.theseus.fi/handle/10024/78310
► Opinnäytetyön aiheena oli suunnitella layout laajennukseen Korpela Oy:lle. Ideana oli luoda 3D-mallit jalostus- ja pakkauskoneista sekä ympäristöstä SolidWorks ohjelmalla. Ympäristö mitattiin digitaalisesti DWG muodosta. Koneiston…
(more)
▼ Opinnäytetyön aiheena oli suunnitella layout laajennukseen Korpela Oy:lle. Ideana oli luoda 3D-mallit jalostus- ja pakkauskoneista sekä ympäristöstä SolidWorks ohjelmalla.
Ympäristö mitattiin digitaalisesti DWG muodosta. Koneiston mittaus suoritettiin fyysisesti paikan päällä. Näillä mittatiedoilla luotiin 3D-mallit koneistosta. Nämä mallit tuotiin ympäristöön ja tällä kokoonpanolla luotiin paras mahdollinen layout.
Suunnittelussa tärkeimmät kysymykset olivat materiaalivirtojen tarkastelu, laatikoinnin ja lavauksen sijoittelun suunnittelu sekä tilavarausten tekeminen tuotantolinjoille ja tuleville lisäyksille. Itse suunnittelu toteutettiin palavereilla Korpelan edustajien kanssa. Kuljetinratkaisun suunnittelun toteutti kuljettimien toimittaja.
Teoriaosuudessa tutkittiin erilaisia layout-tyyppejä sekä simulointia.
The purpose of this thesis was to plan a layout for an extension space for Korpela ltd. The idea was to create digital 3D-models of meat processing machines, packing machines and the environment with SolidWorks program.
Environment was measured digitally from DWG form. The machinery was measured physically on the spot. With these measurement data, 3D models were created. These models then were brought to the environment and with this assembly, the best possible layout was created.
In planning, the most important questions answered were, inspection of material flow, the position of boxing and palletin and the space reservation for the production lines and future additions. The planning itself was conducted by meetings with the representatives of Korpela. The planning of conveyors was made by company which delivers them.
In theory section different kind of layout types were examined along with simulation.
Advisors/Committee Members: Satakunnan ammattikorkeakoulu.
Subjects/Keywords: layout; mallintaminen; suunnittelu
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Leino, T. (2014). Layout-suunnittelu tuotantotilojen laajennukseen. (Thesis). Satakunnan ammattikorkeakoulu. Retrieved from http://www.theseus.fi/handle/10024/78310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Leino, Toni. “Layout-suunnittelu tuotantotilojen laajennukseen.” 2014. Thesis, Satakunnan ammattikorkeakoulu. Accessed January 20, 2021.
http://www.theseus.fi/handle/10024/78310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Leino, Toni. “Layout-suunnittelu tuotantotilojen laajennukseen.” 2014. Web. 20 Jan 2021.
Vancouver:
Leino T. Layout-suunnittelu tuotantotilojen laajennukseen. [Internet] [Thesis]. Satakunnan ammattikorkeakoulu; 2014. [cited 2021 Jan 20].
Available from: http://www.theseus.fi/handle/10024/78310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Leino T. Layout-suunnittelu tuotantotilojen laajennukseen. [Thesis]. Satakunnan ammattikorkeakoulu; 2014. Available from: http://www.theseus.fi/handle/10024/78310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Michigan
29.
Agostini, Claudio A.
Essays in public finance and industrial organization.
Degree: PhD, Social Sciences, 2003, University of Michigan
URL: http://hdl.handle.net/2027.42/123335
► Chapter 1 examines the effects of state corporate income taxes on the location of foreign direct investment, taking into account the state governments' behavior when…
(more)
▼ Chapter 1 examines the effects of state corporate income taxes on the location of foreign
direct investment, taking into account the state governments' behavior when setting taxes. Ignoring the tax setting behavior of states may bias the estimate of the tax effects on foreign
direct investment. I estimate the tax effects on investment location adapting a discrete choice model of differentiated products, which allows at the same time to control for the outside options of investors and to use instrumental variables to solve the problem of tax endogeneity. I find the tax elasticity to be consistently around -1. Chapter 2 addresses the important question of the extent to which personal and corporate income taxes are used to compensate for sales tax fluctuations within the U.S. states. State governments finance their expenditures with multiple tax instruments, so when collections from one source decline, they are typically compensated by greater revenues from other sources. The results show that one percent increase in the sales tax rate is associated with a half and a third percent decrease in the personal and corporate income tax rates respectively. In terms of tax revenues per capita, the results show that a one percent increase in the sales tax revenue per capita is associated with a 3 percent and a 0.9 percent decrease in the corporate and personal income tax revenue per capita respectively. Chapter 3 investigates the competitive behavior of the U.S.
copper industry. Before 1978, most of the U.S. domestic
copper production and an important fraction of the imports of refined
copper were traded at a price known as the U.S. producer price, which was set by the major U.S. producers. At the same time, the rest of the world was trading
copper at prices determined in auction markets. There are several explanations in the literature to account for the existence of market power in the U.S. industry. This essay tests if that market power was actually exercised or not and to what extent. The results show that
copper prices were close to the ones predicted by a competitive model of the industry.
Advisors/Committee Members: Jr., James R. Hines, (advisor).
Subjects/Keywords: Copper Industry; Corporate Income Tax; Essays; Foreign Direct Investment; Industrial Organization; Public Finance
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APA (6th Edition):
Agostini, C. A. (2003). Essays in public finance and industrial organization. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/123335
Chicago Manual of Style (16th Edition):
Agostini, Claudio A. “Essays in public finance and industrial organization.” 2003. Doctoral Dissertation, University of Michigan. Accessed January 20, 2021.
http://hdl.handle.net/2027.42/123335.
MLA Handbook (7th Edition):
Agostini, Claudio A. “Essays in public finance and industrial organization.” 2003. Web. 20 Jan 2021.
Vancouver:
Agostini CA. Essays in public finance and industrial organization. [Internet] [Doctoral dissertation]. University of Michigan; 2003. [cited 2021 Jan 20].
Available from: http://hdl.handle.net/2027.42/123335.
Council of Science Editors:
Agostini CA. Essays in public finance and industrial organization. [Doctoral Dissertation]. University of Michigan; 2003. Available from: http://hdl.handle.net/2027.42/123335
University of Manchester
30.
Evans, Llion Marc.
Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data.
Degree: 2013, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:214159
► A key challenge facing the nuclear fusion community is how to design a reactor that will operate in environmental conditions not easily reproducible in the…
(more)
▼ A key challenge facing the nuclear fusion community
is how to design a reactor that will operate in environmental
conditions not easily reproducible in the laboratory for materials
testing. Finite element analysis (FEA), commonly used to predict
components’ performance, typically uses idealised geometries. An
emerging technique shown to have improved accuracy is image based
finite element modelling (IBFEM). This involves converting a three
dimensional image (such as from X ray tomography) into an FEA mesh.
A main advantage of IBFEM is that models include micro structural
and non idealised manufacturing features. The aim of this work was
to investigate the thermal performance of a CFC Cu divertor
monoblock, a carbon fibre composite (CFC) tile joined through its
centre to a CuCrZr pipe with a Cu interlayer. As a plasma facing
component located where thermal flux in the reactor is at its
highest, one of its primary functions is to extract heat by active
cooling. Therefore, characterisation of its thermal performance is
vital.Investigation of the thermal performance of CFC Cu joining
methods by laser flash analysis and X ray tomography showed a
strong correlation between micro structures at the material
interface and a reduction in thermal conductivity. Therefore, this
problem leant itself well to be investigated further by IBFEM.
However, because these high resolution models require such large
numbers of elements, commercial FEA software could not be used.
This served as motivation to develop parallel software capable of
performing the necessary transient thermal simulations. The
resultant code was shown to scale well with increasing problem
sizes and a simulation with 137 million elements was successfully
completed using 4096 cores. In comparison with a low resolution
IBFEM and traditional FEA simulations it was demonstrated to
provide additional accuracy.IBFEM was used to simulate a divertor
monoblock mock up, where it was found that a region of delamination
existed on the CFC Cu interface. Predictions showed that if this
was aligned unfavourably it would increase thermal gradients across
the component thus reducing lifespan. As this was a feature
introduced in manufacturing it would not have been accounted for
without IBFEM.The technique developed in this work has broad
engineering applications. It could be used similarly to accurately
model components in conditions unfeasible to produce in the
laboratory, to assist in research and development of component
manufacturing or to verify commercial components against
manufacturers’ claims.
By harnessing the same process as that which powers
the sun, fusion power promises to deliver an effectively limitless
supply of energy without producing carbon emissions or long term
nuclear waste. To achieve this, plasma is produced that is ten
times hotter than the sun’s core and is held in place by
superconducting magnets. The edge of this plasma still reaches
temperatures of up to 3000 °C and the challenge for engineers and
materials scientists is to develop a vessel capable of…
Advisors/Committee Members: Mummery, Paul.
Subjects/Keywords: thermal conductivity; laser flash; X-ray tomography; CT; 3D imaging; carbon fibre composites; CFC; copper; Cu; joining; direct casting; direct casting; fusion; divertor; tokamak; ITER; finite element analysis; FEA; FEM; image-based; thermal analysis; open source; high performance computing; HPC; parallel computation; supercomputer
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Evans, L. M. (2013). Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:214159
Chicago Manual of Style (16th Edition):
Evans, Llion Marc. “Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data.” 2013. Doctoral Dissertation, University of Manchester. Accessed January 20, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:214159.
MLA Handbook (7th Edition):
Evans, Llion Marc. “Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data.” 2013. Web. 20 Jan 2021.
Vancouver:
Evans LM. Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data. [Internet] [Doctoral dissertation]. University of Manchester; 2013. [cited 2021 Jan 20].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:214159.
Council of Science Editors:
Evans LM. Thermal Finite Element Analysis of Ceramic/Metal Joining
for Fusion Using X-ray Tomography Data. [Doctoral Dissertation]. University of Manchester; 2013. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:214159
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Open Access Theses and Dissertations
