subject:(Material properties)

University of Waterloo

1. Johnson, Marc. Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance.

Degree: 2019, University of Waterloo

► The ever-evolving concrete construction industry has required stronger concrete, faster turnarounds, and better durability. To achieve this, the concrete mixtures have changed drastically, including a… (more)

▼ The ever-evolving concrete construction industry has required stronger concrete, faster turnarounds, and better durability. To achieve this, the concrete mixtures have changed drastically, including a large amount of cementitious materials, lower amount of water relative to the amount of cementitious materials, supplementary cementitious materials, and chemical admixtures. Each of these changes alters the properties and the behaviour of both fresh and hardened concrete. The standards and codes relating to the quality control and assurance of concrete structures were based on research conducted decades ago, which utilized on concrete mixtures which contained none of these changes and would not meet the expectations of modern concrete construction. The parameters of core testing, time, location, and direction of core extraction, the condition of the core between extraction and testing, the diameter, and the length-to-diameter (l/d) ratio of the core, all have effects on the results of the compressive strength test. Due to the property changes caused by the modern concrete mixtures, the effect that these parameters had on the result of the compressive strength test may or may not be true nowadays. At the request of the Ministry of Transportation of Ontario, an experimental project was conducted to determine the effects that various parameters have on the day 28 compressive strength of concrete samples, and which combination of these parameters would be optimal for quality assurance testing purposes. In total, 8 sets of concrete structures were created and tested, totaling 884 concrete samples, of which 713 underwent compression testing. These sets of concrete samples included beams, wall sections to represent girder webs, large box structures, manhole risers, and standard concrete cylinders which were constructed in the University of Waterloo laboratory and in pre-cast manufacturer facilities. Other tests were conducted, including the bulk resistivity, rapid chloride permeability, and air void systems. These tests are not discussed in this thesis but were discussed elsewhere [1]. The purpose of this project was to determine how different core parameters affected the compressive strength results, and how modern concrete mixtures adhere to the current practices outlined in standards and codes. These parameters are the time of coring (day 3, 7, 14, and 28), location of the core along the length and height of a structure, direction of core extraction (perpendicular or parallel to the direction of casting), the condition of the core between extraction and testing (sealed in plastic or soaked in a saturated calcium hydroxide solution), the diameter of the core (75 mm or 100 mm), and the core l/d ratio (2 or 1.5). A statistical analysis was carried out at a 95% confidence level to determine these effects. Each sample set varied a parameter to isolate its effect on the compressive strength. Once isolated, the effect of the parameters was determined through statistical comparisons. The time of coring was found to have no…

Subjects/Keywords: concrete; concrete cores; material properties

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APA (6^th Edition):

Johnson, M. (2019). Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/14550

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johnson, Marc. “Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance.” 2019. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/14550.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johnson, Marc. “Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance.” 2019. Web. 07 Mar 2021.

Vancouver:

Johnson M. Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/14550.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johnson M. Investigation of Parameters Effecting Concrete Core Performance for Quality Control and Assurance. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/14550

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cal Poly

2. Kmak, Stephen Matthew. Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone.

Degree: MS, Biomedical and General Engineering, 2020, Cal Poly

URL: https://digitalcommons.calpoly.edu/theses/2225

► Nanoindentation techniques have not been standardized for use on bone tissues, making comparison of bone material properties obtained via nanoindentation across studies difficult and… (more)

Subjects/Keywords: Nanoindentation; Bone; Material Properties; Biomaterials

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APA (6^th Edition):

Kmak, S. M. (2020). Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone. (Masters Thesis). Cal Poly. Retrieved from https://digitalcommons.calpoly.edu/theses/2225

Chicago Manual of Style (16^th Edition):

Kmak, Stephen Matthew. “Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone.” 2020. Masters Thesis, Cal Poly. Accessed March 07, 2021. https://digitalcommons.calpoly.edu/theses/2225.

MLA Handbook (7^th Edition):

Kmak, Stephen Matthew. “Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone.” 2020. Web. 07 Mar 2021.

Vancouver:

Kmak SM. Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone. [Internet] [Masters thesis]. Cal Poly; 2020. [cited 2021 Mar 07]. Available from: https://digitalcommons.calpoly.edu/theses/2225.

Council of Science Editors:

Kmak SM. Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone. [Masters Thesis]. Cal Poly; 2020. Available from: https://digitalcommons.calpoly.edu/theses/2225

Texas A&M University

3. Perkins, Luke 1990-. Evaluation of Bone Fixation Implants.

Degree: MS, Mechanical Engineering, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/148271

► This research investigates the effects of the human body on the mechanical, chemical, and morphological properties of the surface of internal fixation devices. Stainless steel… (more)

Subjects/Keywords: Material Properties; Bone Implant Materials; Internal Fixation

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APA (6^th Edition):

Perkins, L. 1. (2012). Evaluation of Bone Fixation Implants. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/148271

Chicago Manual of Style (16^th Edition):

Perkins, Luke 1990-. “Evaluation of Bone Fixation Implants.” 2012. Masters Thesis, Texas A&M University. Accessed March 07, 2021. http://hdl.handle.net/1969.1/148271.

MLA Handbook (7^th Edition):

Perkins, Luke 1990-. “Evaluation of Bone Fixation Implants.” 2012. Web. 07 Mar 2021.

Vancouver:

Perkins L1. Evaluation of Bone Fixation Implants. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1969.1/148271.

Council of Science Editors:

Perkins L1. Evaluation of Bone Fixation Implants. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/148271

Virginia Tech

4. Kappiyoor, Ravi. Mechanical Properties of Elastomeric Proteins.

Degree: PhD, Engineering Mechanics, 2014, Virginia Tech

URL: http://hdl.handle.net/10919/54563

► When we stretch and contract a rubber band a hundred times, we expect the rubber band to fail. Yet our heart stretches and contracts the… (more)

Subjects/Keywords: Protein elasticity; molecular dynamics; nanoscale material properties

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APA (6^th Edition):

Kappiyoor, R. (2014). Mechanical Properties of Elastomeric Proteins. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/54563

Chicago Manual of Style (16^th Edition):

Kappiyoor, Ravi. “Mechanical Properties of Elastomeric Proteins.” 2014. Doctoral Dissertation, Virginia Tech. Accessed March 07, 2021. http://hdl.handle.net/10919/54563.

MLA Handbook (7^th Edition):

Kappiyoor, Ravi. “Mechanical Properties of Elastomeric Proteins.” 2014. Web. 07 Mar 2021.

Vancouver:

Kappiyoor R. Mechanical Properties of Elastomeric Proteins. [Internet] [Doctoral dissertation]. Virginia Tech; 2014. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10919/54563.

Council of Science Editors:

Kappiyoor R. Mechanical Properties of Elastomeric Proteins. [Doctoral Dissertation]. Virginia Tech; 2014. Available from: http://hdl.handle.net/10919/54563

University of Edinburgh

5. Knox, Joanne Jennefer. Aspects of modelling plain and reinforced concrete at elevated temperatures.

Degree: PhD, 2012, University of Edinburgh

URL: http://hdl.handle.net/1842/7713

► Extreme events such as the Mont Blanc Tunnel fire in 1999 (Bettelini et al. 2001) or the Windsor Tower fire in 2005 (Calavera et al.… (more)

▼ Extreme events such as the Mont Blanc Tunnel fire in 1999 (Bettelini et al. 2001) or the Windsor Tower fire in 2005 (Calavera et al. 2005) have shown how concrete failure at elevated temperatures can be hazardous to the safety of members of the public. Generally, there is an absence of understanding of the mechanical behaviour of both plain and reinforced concrete at elevated temperatures, which is essential for computational modelling. Since fire is an extreme event, a certain amount of damage within the structure would be seen to be permissible within its performance objectives. This necessitates analysis in the post-peak regime. As a material, concrete has a very low value of thermal conductivity. This means that large thermal gradients often occur within concrete, causing differential expansion of the material. This, coupled with the change in mechanical properties at elevated temperatures, further complicates analytical analysis procedures. This study investigates issues associated with computational modelling of plain and reinforced concrete at elevated temperatures and its residual behaviour (behaviour when tested after the material has been heated, for example in a fire, and then cooled). In order to achieve this, first the constitutive material properties of both plain and reinforced concrete at ambient and elevated temperatures were investigated. The study showed that mesh sensitivity and localisation of strain softening occurs in plain concrete under both tensile and compressive loading. Path dependency of the stress-strain behaviour of plain concrete was also demonstrated, when it was subjected to loading and heating. Tension stiffening was included in the reinforced concrete material model, to represent the interaction between concrete and reinforcing steel. Complex behaviours were seen for simple reinforced concrete benchmark tests, due to changing material properties at elevated temperatures and differential thermal expansion of steel and concrete. Non-linear load-displacement relationships were seen as a result of complex load-sharing between concrete and reinforcement. A hypothesis was proposed – that variation of temperatures during heating and cooling of a specimen will cause damage, and hence material degradation, in plain and reinforced concrete. On investigation, it was seen that damage due to differential thermal expansion plays a small part in the reduction of elastic load-displacement slope and peak strength seen in experimental data on residual tests, indicating that other factors identified in previous research also affect the residual behaviour of plain and reinforced concrete. Indeed, in reinforced concrete, when tension stiffening was included, it was found that damage due to differential thermal expansion and contraction had a negligible effect on the residual response in the pre-peak regime. The study also found that for a simply supported beam pure thermal expansion caused a localised response, while pure thermal gradient gave distributed yield. When both were present, in this study,…

Subjects/Keywords: 620.1; concrete; elevated temperature; material properties

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APA (6^th Edition):

Knox, J. J. (2012). Aspects of modelling plain and reinforced concrete at elevated temperatures. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/7713

Chicago Manual of Style (16^th Edition):

Knox, Joanne Jennefer. “Aspects of modelling plain and reinforced concrete at elevated temperatures.” 2012. Doctoral Dissertation, University of Edinburgh. Accessed March 07, 2021. http://hdl.handle.net/1842/7713.

MLA Handbook (7^th Edition):

Knox, Joanne Jennefer. “Aspects of modelling plain and reinforced concrete at elevated temperatures.” 2012. Web. 07 Mar 2021.

Vancouver:

Knox JJ. Aspects of modelling plain and reinforced concrete at elevated temperatures. [Internet] [Doctoral dissertation]. University of Edinburgh; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1842/7713.

Council of Science Editors:

Knox JJ. Aspects of modelling plain and reinforced concrete at elevated temperatures. [Doctoral Dissertation]. University of Edinburgh; 2012. Available from: http://hdl.handle.net/1842/7713

University of Limerick

6. Ivashyn, Uladzislau. An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304.

Degree: 2015, University of Limerick

URL: http://hdl.handle.net/10344/4798

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peer-reviewed

The tensile test is one of the most commonly used techniques to establish the mechanical properties of a material. The test is accomplished by… (more)

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peer-reviewed

The tensile test is one of the most commonly used techniques to establish the mechanical properties of a material. The test is accomplished by extending the specimen with known cross sectional area in the direction perpendicular to its cross-sectional area axis. The loading of the specimen is increased until fracture occurs. This simple and accurate method of defining material properties has been the subject of recent research investigations when used to characterise the tensile behaviour of sheet metal. Forming of sheet metal leads to largely anisotropic behaviour of the material under variable loading conditions. It has varying mechanical strength in different directions due to rolling (type of manufacturing process used). The resulting data obtained by the standard tensile test may not be applicable to multi directional forming processes used in biomedical alloys. Biaxial testing has become an increasingly used common technique to determine mechanical properties of sheet materials. It provides closer approximation of the behaviour of sheet metals (anisotropic materials) during deformation processes used in sheet metal forming. Mechanical loading is applied to a cruciform specimen in two directions simultaneously. One of the aims of this research was to design and build a biaxial planar testing system to study the properties of biomedical materials. A biomedical grade Stainless Steel and Nitinol, near equi-atomic alloy of Nickel and Titanium, were investigated and their tensile properties were established under biaxial loading conditions as well as the mechanisms of their fracture. The goals of this research are outlined in Chapter 1. These goals are followed by hypotheses used in this study. A comprehensive literature review of four areas: biomedical materials, sheet metal formability, biaxial planar testing and cruciform specimen design was conducted and is presented in Chapter 2. Chapter 3 accounts for the activities necessary to design and manufacture biaxial testing system and cruciform specimens. The biaxial planar testing system was designed, manufactured and assembled at the University of Limerick. Chapter 4 presents the integrations of all the controls and data acquisition components (hardware and software) required for successful testing. Most of the components required for the system were available from the previous research activities in the Department of Design and Manufacturing Technology. Additional items were purchased to satisfy the requirements of the controls and data acquisition system. The biaxial testing system underwent a series of steps to prove its validity. These steps are explained in Chapter 5. The Finite Element Analysis models of Stainless Steel SS304 and Nitinol were developed in ABAQUS software. Stainless Steel SS304 and Nitinol specimens were tested biaxially and also underwent microscopic analysis. Chapter 6 contains the results of biaxial testing of Stainless Steel SS304 and Nitinol, their FEA models and microscopic analysis of the materials. Chapter 7…

Advisors/Committee Members: Tiernan, Peter, IRC.

Subjects/Keywords: tensile test; mechanical properties; sheet material

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APA (6^th Edition):

Ivashyn, U. (2015). An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304. (Thesis). University of Limerick. Retrieved from http://hdl.handle.net/10344/4798

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ivashyn, Uladzislau. “An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304.” 2015. Thesis, University of Limerick. Accessed March 07, 2021. http://hdl.handle.net/10344/4798.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ivashyn, Uladzislau. “An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304.” 2015. Web. 07 Mar 2021.

Vancouver:

Ivashyn U. An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304. [Internet] [Thesis]. University of Limerick; 2015. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10344/4798.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ivashyn U. An experimental and numerical investigation of the biaxial tensile behaviour of biomedical alloys, nitinol and SS304. [Thesis]. University of Limerick; 2015. Available from: http://hdl.handle.net/10344/4798

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universitetet i Tromsø

7. Lai, Chia-Yun. Quantitatively reinterpreting atomic force microscopy via the data science paradigm .

Degree: 2019, Universitetet i Tromsø

URL: http://hdl.handle.net/10037/16770

► From the invention of the atomic force microscope (AFM) in 1986, tremendous efforts have been put into developing this tool. The AFM has long been… (more)

Subjects/Keywords: Material properties characterization; Atomic force microscope

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APA (6^th Edition):

Lai, C. (2019). Quantitatively reinterpreting atomic force microscopy via the data science paradigm . (Doctoral Dissertation). Universitetet i Tromsø. Retrieved from http://hdl.handle.net/10037/16770

Chicago Manual of Style (16^th Edition):

Lai, Chia-Yun. “Quantitatively reinterpreting atomic force microscopy via the data science paradigm .” 2019. Doctoral Dissertation, Universitetet i Tromsø. Accessed March 07, 2021. http://hdl.handle.net/10037/16770.

MLA Handbook (7^th Edition):

Lai, Chia-Yun. “Quantitatively reinterpreting atomic force microscopy via the data science paradigm .” 2019. Web. 07 Mar 2021.

Vancouver:

Lai C. Quantitatively reinterpreting atomic force microscopy via the data science paradigm . [Internet] [Doctoral dissertation]. Universitetet i Tromsø 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10037/16770.

Council of Science Editors:

Lai C. Quantitatively reinterpreting atomic force microscopy via the data science paradigm . [Doctoral Dissertation]. Universitetet i Tromsø 2019. Available from: http://hdl.handle.net/10037/16770

Brno University of Technology

8. Bertolla, Luca. Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/51852

► Bioactive glasses exhibit unique characteristics as a material for bone tissue engineering. Unfortunately, their extensive application for the repair of load-bearing bone defects is still… (more)

▼ Bioactive glasses exhibit unique characteristics as a material for bone tissue engineering. Unfortunately, their extensive application for the repair of load-bearing bone defects is still limited by low mechanical strength and fracture toughness. The main aim of this work was two-fold: the reinforcement of brittle Bioglass®-based porous scaffolds and the production of bulk Bioglass® samples exhibiting enhanced mechanical properties. For the first task, scaffolds were coated by composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC). The addition of PVA/MFC coating led to a 10 fold increase of compressive strength and a 20 fold increase of tensile strength in comparison with non-coated scaffolds. SEM observations of broken struts surfaces proved the reinforcing and toughening mechanism of the composite coating which was ascribed to crack bridging and fracture of cellulose fibrils. The mechanical properties of the coating material were investigated by tensile testing of PVA/MFC stand–alone specimens. The stirring time of the PVA/MFC solution came out as a crucial parameter in order to achieve a more homogeneous dispersion of the fibres and consequently enhanced strength and stiffness. Numerical simulation of a PVA coated Bioglass® strut revealed the infiltration depth of the coating until the crack tip as the most effective criterion for the struts strengthening. Contact angle and linear viscosity measurements of PVA/MFC solutions showed that MFC causes a reduction in contact angle and a drastic increase in viscosity, indicating that a balance between these opposing effects must be achieved. Concerning the production of bulk samples, conventional furnace and spark plasma sintering technique was used. Spark plasma sintering performed without the assistance of mechanical pressure and at heating rates ranging from 100 to 300°C /min led to a material having density close to theoretical one and fracture toughness nearly 4 times higher in comparison with conventional sintering. Fractographic analysis revealed the crack deflection as the main toughening mechanisms acting in the bulk Bioglass®. Time–dependent crack healing process was also observed. The further investigation on the non-equilibrium phases crystallized is required. All obtained results are discussed in detail and general recommendations for scaffolds with enhanced mechanical resistance are served. Advisors/Committee Members: Dlouhý, Ivo (advisor), Prof. Dr.-Ing. habil. Aldo R. Boccaccini (referee), Kotoul, Michal (referee), Pabst, Willi (referee).

Subjects/Keywords: bioactive glass; scaffolds; composite material; mechanical properties; tensile test; SPS; bioactive glass; scaffolds; composite material; mechanical properties; tensile test; SPS

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APA (6^th Edition):

Bertolla, L. (2019). Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/51852

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bertolla, Luca. “Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds.” 2019. Thesis, Brno University of Technology. Accessed March 07, 2021. http://hdl.handle.net/11012/51852.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bertolla, Luca. “Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds.” 2019. Web. 07 Mar 2021.

Vancouver:

Bertolla L. Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11012/51852.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bertolla L. Mechanical Reinforcement of Bioglass®-Based Scaffolds: Mechanical Reinforcement of Bioglass®-Based Scaffolds. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/51852

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Lithuanian Veterinary Academy

9. Skablauskaitė, Indrė. Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms.

Degree: Master, Zootechny, 2010, Lithuanian Veterinary Academy

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100610_082013-25032 ;

►

Europos Sąjungos plėtra iš esmės pakoregavo kiaulienos gamybą Lietuvoje, išaugo kiaulienos vartojimas šalyje, dėl kiaulienos trūkumo padidėjo importas. Europos Sąjunga kiaulių augintojų tiesiogiai nesubsidijuoja, tačiau… (more)

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Europos Sąjungos plėtra iš esmės pakoregavo kiaulienos gamybą Lietuvoje, išaugo kiaulienos vartojimas šalyje, dėl kiaulienos trūkumo padidėjo importas. Europos Sąjunga kiaulių augintojų tiesiogiai nesubsidijuoja, tačiau netiesiogiai tai daroma per tiesiogines išmokas už grūdų auginimą, per struktūrinius fondus tvartams modernizuoti, mėšlidėms įrengti bei pašarų įrangai įsigyti. Nors kiaulių auginimas nėra tiesiogiai valstybės remiamas, tačiau šis verslas rentabilus. Pagal kiaules auginančių bendrovių finansinių ataskaitų duomenis pelningai kiaulės buvo auginamos net trejus iš ketverių paskutiniųjų metų (http://www.vic.lt ). Darbo tyrimo objektas: kiaulienos kumpelių fizinės ir cheminės savybės. Darbo tyrimo tikslas: nustatyti žaliavos ir karšto bei šalto rūkymo kiaulienos kumpelių cheminių ir fizinių savybių skirtumus bei panašumus. Darbo uždaviniai: 1. Surinkti literatūros šaltinius apie įvairias mėsos produktų gamybos technologijas. 2. Palyginti įvairias mėsos gamybos technologijas. 3. Nustatyti žaliavos ir karšto bei šalto rūkymo kiaulienos kumpių cheminės ir fizinės sudėties savybes. 4. Statistiškai apdoroti, išanalizuoti ir įvertinti gautus duomenis. Išvados: 1. Tyrimo duomenys parodė, kad žalių kumpelių fizinės savybės keitėsi priklausomai nuo parinktos gamybos technologijos. Vandens rišlumas, švelnumas ir šviesumas žalioje ir technologiškai apdorotoje mėsoje skyrėsi statistiškai reikšmingai. Karštai išrūkius kiaulienos kumpelius, padidėjo vandens rišlumas 3,7 proc. o... [toliau žr. visą tekstą]

Meat quality composed of taste, nutritional value, quality, functionality, safety and diversity. To obtain high-quality meat products, the need to regularly monitor the raw material characteristics and processing parameters. Raw material quality is causes of quality and safe product production to determine finished product quality and safety. It has been shown that the quality of meat is not only the carcass muscle content determined, but also its physical, chemical and technological properties. Both the chemical and physical properties indicate the meat technological , cooking and nutritional value). The main indicators of meat technological quality - acidity (pH), color, shear force, cooking loss, water holding, drip loss and tissue ratio. From good quality raw materials available to produce high quality and competitive products of meat. The purpose of the work: to set the raw materials and hot and cold smoked of pork hams on the chemical and physical traits differences and similarities. In the study were taken five Lithuanian White breed pigs, meat samples. Pigs reared Closed Joint-Stock Company „Grabupėliai“, its grown and fed to a category corresponding to the conditions and feed. Each animal was studied in raw meat hams and hot and cold smoking hams chemical composition, physical and technological properties. Samples were taken after 450 to 500 g of raw meat ham. Raw hams meat quality was assessed after 48 hours after slaughter and cutting. Of pig carcasses hams were... [to full text]

Advisors/Committee Members: Juškienė , Violeta (Master’s degree committee chair), Gružauskas , Romas (Master’s degree committee member), Jukna , Vigilijus (Master’s degree committee member), Kulpys , Jurgis (Master’s degree committee member), Suveizdis , Virginijus (Master’s degree committee member), Miceikienė , Ilona (Master’s degree committee member), Staniškienė , Birutė (Master’s degree committee member), Matusevičius , Paulius (Master’s degree committee member), Kauzonienė , Ilona (Master’s degree committee member), Čiučelienė , Zita (Master’s degree session secretary), Pečiulaitienė , Nijolė (Master’s thesis supervisor), Černiauskienė , Janina (Master’s thesis reviewer).

Subjects/Keywords: Žaliava; Kiaulienos kumpeliai; Cheminės savybės; Fizinės savybės; Raw material; Pork hams; Chemical properties; Physical properties

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APA (6^th Edition):

Skablauskaitė, Indrė. (2010). Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms. (Masters Thesis). Lithuanian Veterinary Academy. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100610_082013-25032 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Skablauskaitė, Indrė. “Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms.” 2010. Masters Thesis, Lithuanian Veterinary Academy. Accessed March 07, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100610_082013-25032 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Skablauskaitė, Indrė. “Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms.” 2010. Web. 07 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Skablauskaitė, Indrė. Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms. [Internet] [Masters thesis]. Lithuanian Veterinary Academy; 2010. [cited 2021 Mar 07]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100610_082013-25032 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Skablauskaitė, Indrė. Žaliavos ir gamybos technologijų įtaka karšto ir šalto rūkymo kiaulienos kumpelių cheminėms ir fizinėms savybėms. [Masters Thesis]. Lithuanian Veterinary Academy; 2010. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100610_082013-25032 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Boston University

10. Wen, Hanqing. Advanced numerical modeling of semiconductor material properties and their device performances.

Degree: PhD, Electrical & Computer Engineering, 2016, Boston University

URL: http://hdl.handle.net/2144/17068

► With the renewed concept of "Materials by Design" attracting particular attentions from the engineering communities in recent years, numerical methods that can reliably predict the… (more)

▼ With the renewed concept of "Materials by Design" attracting particular attentions from the engineering communities in recent years, numerical methods that can reliably predict the optical and electrical properties of materials is highly preferable. Since the growth or the synthesis of a "designed" material and the ensuing devices is usually prohibitively expensive and time-consuming, numerical simulation tools that predict the properties of a proposed material together with its device performance before production is especially important and cost-effective. Furthermore, as the technology advances, semiconductor devices have been pushed to operate at their material limits, which requires a thorough understanding of the materials' microscopic processes under different conditions. Therefore, developing numerical models that are capable of investigating the semiconductor properties from material level to device level is highly desirable. This dissertation develops a suite of numerical models in which optical absorption and Auger recombination in semiconductor materials are studied and simulated together with their device performances. In particular, Green's function theory with full band structures is employed to investigate the material properties by evaluating the broadening of the electronic bands under the perturbation of phonons. As a result, both direct and phonon-assisted indirect processes are computed and compared among different materials. Drift-diffusion model and a 3D Monte-Carlo model are subsequently used to simulate the device characteristics with the obtained material parameters. This work first determines the full band structures for Si, Ge, α-Sn, HgCdTe, InAsSb and InGaAs alloys from EPM model, and then investigated the materials' minority carrier lifetime for IR detector applications. Finally device level simulations using drift-diffusion and 3D Monte-Carlo models are demonstrated. In particular, two issues of developing 3D Monte-Carlo device simulation models, namely the use of unstructured spatial meshes and elimination of particle-mesh forces, are discussed, which are crucial in simulating modern semiconductor devices having complex geometry and doping profiles.

Subjects/Keywords: Electrical engineering; Device properties; Finite element method; Material properties; Numerical simulation; Semiconductor

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APA (6^th Edition):

Wen, H. (2016). Advanced numerical modeling of semiconductor material properties and their device performances. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/17068

Chicago Manual of Style (16^th Edition):

Wen, Hanqing. “Advanced numerical modeling of semiconductor material properties and their device performances.” 2016. Doctoral Dissertation, Boston University. Accessed March 07, 2021. http://hdl.handle.net/2144/17068.

MLA Handbook (7^th Edition):

Wen, Hanqing. “Advanced numerical modeling of semiconductor material properties and their device performances.” 2016. Web. 07 Mar 2021.

Vancouver:

Wen H. Advanced numerical modeling of semiconductor material properties and their device performances. [Internet] [Doctoral dissertation]. Boston University; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2144/17068.

Council of Science Editors:

Wen H. Advanced numerical modeling of semiconductor material properties and their device performances. [Doctoral Dissertation]. Boston University; 2016. Available from: http://hdl.handle.net/2144/17068

University of Edinburgh

11. Maclean, Jamie Wall. Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes.

Degree: PhD, 2019, University of Edinburgh

URL: http://hdl.handle.net/1842/35515

► In addition to the immediate life safety concerns during building fires, uncontrolled fires within buildings have the potential to cause extensive structural damage. Current design… (more)

▼ In addition to the immediate life safety concerns during building fires, uncontrolled fires within buildings have the potential to cause extensive structural damage. Current design guidance for structures in fire focuses exclusively on the life safety of the occupants within buildings. With regard to the structure this is generally achieved by specifying a defined fire resistance period during which structural integrity must be maintained and fire spread must be prevented. This is to ensure that the building's egress routes are not compromised until all occupants have escaped from the building and fire-fighting operations have been completed. Designers are not typically required to explicitly consider the residual post-fire effects on structures. Particularly in relation to concrete structures which tend to perform well in fire and can often be reinstated, this raises questions about whether the post-fire effects are important from a life safety perspective. This thesis explores the applicability of some of some simple models to reflect the complex behaviour observed when symmetrically reinforced concrete columns are subjected to non-uniform heating regimes. An experimental test series was designed to provide an extensive data bank of the performance of a single reinforced concrete column subjected to many combinations of different loading and heating conditions. To this end 46 geometrically identical reinforced concrete columns were subjected to a combination of loading and heating conditions and both the thermal and mechanical response were monitored during both the heating and cooling phases of the experiments. All surviving columns were destructively tested to determine their residual performance 24 hours after cooling back to ambient temperature conditions. A sectional analysis model is presented to determine the load-moment interaction of a reinforced concrete column after exposure to elevated temperatures. This has been aided with the use of non-destructive testing of each of the columns with the aim of helping practitioners determine the post-fire properties and to aid in the residual analysis of a concrete structure exposed to elevated temperatures. In comparing the results to the current design guidance available it would be expected that each experiment would react in an identical fashion as the design of each of the columns and the external heat source is identical in each case. This experimental test series has concluded that this is not necessary the case. From a post-fire residual structural performance standpoint, this raises a number of questions regarding how practitioners can approach the assessment and analysis of reinforced concrete structures in the future. Given the findings of this work, and the one of a kind data bank that has been created as regards to the performance of reinforced concrete columns subjected to non-uniform heating and cooling regimes, fire engineering modellers now have the capability to validate Finite Element models against a series of 46 reinforced concrete columns…

Subjects/Keywords: heating and cooling; reinforced concrete; material properties; post-fire effects; post-fire properties

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APA (6^th Edition):

Maclean, J. W. (2019). Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/35515

Chicago Manual of Style (16^th Edition):

Maclean, Jamie Wall. “Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes.” 2019. Doctoral Dissertation, University of Edinburgh. Accessed March 07, 2021. http://hdl.handle.net/1842/35515.

MLA Handbook (7^th Edition):

Maclean, Jamie Wall. “Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes.” 2019. Web. 07 Mar 2021.

Vancouver:

Maclean JW. Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes. [Internet] [Doctoral dissertation]. University of Edinburgh; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1842/35515.

Council of Science Editors:

Maclean JW. Structural response of reinforced concrete columns during and after exposure to non-uniform heating and cooling regimes. [Doctoral Dissertation]. University of Edinburgh; 2019. Available from: http://hdl.handle.net/1842/35515

University of New South Wales

12. Feng, Yu. Theoretical investigation of materials and performance for the hot carrier solar cell.

Degree: Photovoltaics & Renewable Energy Engineering, 2014, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/53283 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11978/SOURCE02?view=true

► The hot carrier solar cell (HCSC) is a novel concept on solar energy conversion, which has the potential of exceeding the Shockley-Queisser efficiency limit. Such… (more)

▼ The hot carrier solar cell (HCSC) is a novel concept on solar energy conversion, which has the potential of exceeding the Shockley-Queisser efficiency limit. Such a device extracts the hot photo-generated carriers before their thermalization. It requires an absorber layer that inhibits the energy dissipation of hot carriers, and two energy selective contacts (ESC) that extract electrons and holes respectively, through small energy windows. This is to prevent excessive entropy generation during the extraction processes. In this thesis, several device models are developed for calculating the conversion efficiency of the hot carrier solar cell. Incorporation of actual data, from literature, for impact ionization and Auger recombination rates, into the model enables self-modulation of the carrier average energies, allowing for stable solutions when carriers are extracted at specific energy levels. The carrier-carrier scattering also takes an important role as it contributes to the renormalisation of carrier energy distributions. The proposed model of energy/particle conservations applies to the case of normalized carrier populations while the relaxation-time model can apply to arbitrary carrier statistics. These device models are then generalized to any solid-state systems, yielding a generalized version of the opto-electronic reciprocal relation. The effect of energy-selective contacts on the device performance has also been quantitatively analyzed. Accounting for real properties of carrier ballistic tunneling through the contacts, the efficiency variation has been calculated for different transmission profiles, yielding optimized contact structures.To optimize the selection of materials for this device, the electronic and phononic properties of multiple-quantum-well superlattices have been calculated. Tight-binding methods and bond charge models are adopted for the calculation of electronic and phononic structures respectively. The rates of hot electrons emitting phonons are then calculated for various structural parameters, with the carrier screening effect being formulated and incorporated. The anharmonic interactions between phonons are also calculated to evaluate the phonon-bottleneck effect. In correspondence to the proposed device model, the relaxation times of carrier renormalisation are evaluated by calculating the rates of carrier-carrier scattering using real material parameters. The electron tunneling properties through real material systems have also been calculated, with inelastic scattering by phonons incorporated. The work on material modeling provides comprehensive tools for theoretical analysis of real material systems, whose results are to be readily adopted by the device models for accurate performance predictions. Advisors/Committee Members: Conibeer, Gavin, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW, Shrestha, Santosh, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW, Huang, Shujuan, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW, Green, Martin, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW.

Subjects/Keywords: Material modeling; Hot carrier solar cell; Device modeling; Electronic properties; Phononic properties; Nanomaterials

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APA (6^th Edition):

Feng, Y. (2014). Theoretical investigation of materials and performance for the hot carrier solar cell. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/53283 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11978/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Feng, Yu. “Theoretical investigation of materials and performance for the hot carrier solar cell.” 2014. Doctoral Dissertation, University of New South Wales. Accessed March 07, 2021. http://handle.unsw.edu.au/1959.4/53283 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11978/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Feng, Yu. “Theoretical investigation of materials and performance for the hot carrier solar cell.” 2014. Web. 07 Mar 2021.

Vancouver:

Feng Y. Theoretical investigation of materials and performance for the hot carrier solar cell. [Internet] [Doctoral dissertation]. University of New South Wales; 2014. [cited 2021 Mar 07]. Available from: http://handle.unsw.edu.au/1959.4/53283 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11978/SOURCE02?view=true.

Council of Science Editors:

Feng Y. Theoretical investigation of materials and performance for the hot carrier solar cell. [Doctoral Dissertation]. University of New South Wales; 2014. Available from: http://handle.unsw.edu.au/1959.4/53283 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11978/SOURCE02?view=true

University of Waterloo

13. Nagy, Nicole. Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling.

Degree: 2020, University of Waterloo

URL: http://hdl.handle.net/10012/15705

► Temperature-dependent materials properties are required for use in many contexts in fire safety engineering. While property values for many materials do exist, we often are… (more)

▼ Temperature-dependent materials properties are required for use in many contexts in fire safety engineering. While property values for many materials do exist, we often are limited in our understanding of how representative a given set of materials properties is for the application of interest. Thus, more work is needed to critically evaluate the measurement methods used, data obtained, and interpretation of the values in terms of their use in subsequent engineering applications. This research evaluates methods for determining thermal conductivity, density, mass loss, emissivity, porosity and specific heat capacity as functions of temperature of mineral wool insulation materials. These thermophysical properties will be applied to detailed heat and mass transfer modeling of the response of wall assemblies to realistic fire exposures. Use of the properties in more detailed models will, in turn, provide additional insight into the potential behavior of structural components during a fire for the purpose of occupant egress planning and firefighter safety. The ability to model thermophysical degradation of materials is extremely important when assessing response of assemblies to the wide range of temperatures characteristic of a real fire exposure. Development of consistent methods for analysis and interpretation of the thermophysical properties of each element of the assembly will also guide testing of new, or previously untested, construction materials. Further, in order to develop a model of the response of the full assembly, it is necessary to determine appropriate parameters and properties required as input to submodels developed for the behavior of each material and those must accurately reflect the thermal and mass transfer processes taking place in that material. The objective of this study is to establish a set of methods for accurately characterizing the thermophysical response of construction materials as a function of temperature across a range of temperatures that would be encountered during exposure to real fire events. Currently, one of the most common practices is to model heat transfer in a material using “effective” thermophysical properties for that material. This can involve estimating one or more properties at a set value of temperature (often room temperature or an average value between room and fire temperature) or combining two or more properties into a single “effective” value as needed for input to the model. Such treatments are approximations intended to simplify the modeling process. It is well known that material properties change as a function of temperature, however, determination of properties such as density, specific heat, and thermal conductivity as functions of temperature is time consuming and is oftentimes inconsistent, depending on the material of interest and application. Some problems include the difficulty in preparation of specimens that are representative of the actual application of the material, as well as the variation of property data depending on the methods and/or…

Subjects/Keywords: mineral wool insulation; material properties; construction materials; fire properties; small scale fire testing; thermophysical properties; fire modelling

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APA (6^th Edition):

Nagy, N. (2020). Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15705

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nagy, Nicole. “Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling.” 2020. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/15705.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nagy, Nicole. “Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling.” 2020. Web. 07 Mar 2021.

Vancouver:

Nagy N. Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling. [Internet] [Thesis]. University of Waterloo; 2020. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/15705.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nagy N. Determination Of Thermal Properties Of Mineral Wool Insulation Materials For Use In Full-Scale Fire Modelling. [Thesis]. University of Waterloo; 2020. Available from: http://hdl.handle.net/10012/15705

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

14. Britz, Douglas. Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system.

Degree: 2012, University of Johannesburg

URL: http://hdl.handle.net/10210/5011

►

M. Sc.

The substitution series CeCu5−xAlx where x 2 {1.0, 1.5, 2.0, 2.1, 2.2, 2.3, 2.4} was synthesized and characterized via x-ray diffraction and scanning… (more)

▼

M. Sc.

The substitution series CeCu5−xAlx where x 2 {1.0, 1.5, 2.0, 2.1, 2.2, 2.3, 2.4} was synthesized and characterized via x-ray diffraction and scanning electron microscope analysis. All the compounds formed single phase in the P6/mmm hexagonal crystal structure, which pushed the solubility limit of Al within this structure from CeCu3Al2 to CeCu2.6Al2.4. The ascast samples were annealed, but the annealing process had no visible effect on the crystalline nature nor on the physical properties of the samples. The electric, magnetic and thermal properties were measured on Quantum Design’s Physical Properties Measurement System and Magnetic Properties Measurement System. The electrical resistivity showed single-ion Kondo scattering at intermediate temperatures with no signs of coherence for x 2 {1.0, 1.5, 2.0, 2.1, 2.2, 2.3} CeCu2.6Al2.4 on the other hand showed a weak maximum at 2 K, which was the onset of antiferromagnetic ordering confirmed by other measurements. The magnetoresistance was fitted by the Beth´e ansatz spin-1/2 model and the obtained Kondo temperatures had a maximum at CeCu3Al2, with linear dependencies on Al concentration on either side of this point. The Kondo moments followed an exponential dependence on the Al concentration, but these effective moments were far lower than the free-ion value, due to the Kondo interaction. The thermal conductivity in this series was phonon dominated with the magnitude of the electronic component being inversely proportional to the Kondo temperature, showing the effect that the Kondo scattering mechanism has on the availability of the conduction electrons to participate in heat transport. The magnitude of the peak in the thermoelectric power S(T) was strongly dependent on the Al concentration, having a maximum at CeCu2.8Al2.2. Below the peak there were two temperature dependencies: S(T) / T for x 2 {1.0, 1.5, 2.4} which is metallic and for x 2 {2.0, 2.1, 2.2, 2.3} S(T)/T /−ln(T) which is characteristic of a quantum critical point. The data were also fitted with a phenomenological model and the obtained Kondo temperatures were quantitatively similar to those obtained from the Beth´e ansatz. The heat capacity Cp(T) data confirmed these compounds to be heavy fermions and also showed Cp(T)/T /−ln(T) below 10 K, which is the hallmark for a magnetically tuned quantum critical point. The magnetic susceptibility showed a Curie-Weiss temperature dependence at temperatures above 100 K, with magnetic moments close to the free-ion value, indicating the presence of localized magnetic moments. The low temperature data found (T) /−ln(T) for Al concentrations near CeCu3Al2 and the ordering present in CeCu2.6Al2.4 was suppressed by 0.3 K in going from 0.01 T to 2 T, suggesting that the ground state is antiferromagnetic in this compound.

Subjects/Keywords: Kondo compounds; Kondo effect; Quantum criticality; Material properties; Magnetic susceptibility; Quantum Design’s Physical Properties Measurement System; Magnetic Properties Measurement System

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APA (6^th Edition):

Britz, D. (2012). Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/5011

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Britz, Douglas. “Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system.” 2012. Thesis, University of Johannesburg. Accessed March 07, 2021. http://hdl.handle.net/10210/5011.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Britz, Douglas. “Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system.” 2012. Web. 07 Mar 2021.

Vancouver:

Britz D. Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10210/5011.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Britz D. Thermal, electronic and magnetic properties of the strongly correlated CeCu₅-ᵪ Alx ᵪ system. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/5011

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

15. Yang, Yu-Kuan. The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br).

Degree: Master, Physics, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0719113-170916

► The Fe3+-Te4+-O-X(X=Cl, Br) system has Fe3+ ion to be the source of magnetism and Te4+ ion has lone pair to result in the charge distribution… (more)

Subjects/Keywords: multiferroic material; FeTe3O7Cl; FeTe3O7Br; magntodielectric properties; antiferromagnetic spin dimer

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APA (6^th Edition):

Yang, Y. (2013). The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br). (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0719113-170916

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yang, Yu-Kuan. “The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br).” 2013. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0719113-170916.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yang, Yu-Kuan. “The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br).” 2013. Web. 07 Mar 2021.

Vancouver:

Yang Y. The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br). [Internet] [Thesis]. NSYSU; 2013. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0719113-170916.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yang Y. The Study of Magnetic and Magnetodielectric Properties on FeTe3O7X(X=Cl, Br). [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0719113-170916

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Utah

16. Saffioti, Jami Marie. Characterization of pediatric ocular material properties for implementation in finite element modeling.

Degree: PhD, Mechanical Engineering, 2014, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3200/rec/430

► Abusive head trauma (AHT) is a prominent cause of death and disability in children in the United States. Retinal hemorrhage (RH) is often used to… (more)

▼ Abusive head trauma (AHT) is a prominent cause of death and disability in children in the United States. Retinal hemorrhage (RH) is often used to diagnose AHT, but injury mechanisms and thresholds are unknown. One goal of our research is to develop a finite element (FE) model of the human infant eye to evaluate changes in retinal stress and strain during infant head trauma. However, there are no published data characterizing agedependent material properties of ocular tissues. To characterize age and strain-rate dependent properties, we tested sclera and retina from preterm, infant, and adult sheep according to two uniaxial tensile test protocols. In general, scleral strength decreased with age, whereas no age effect was found for the retina.Sclera and retina had a stiffer elastic response when tested at higher strain-rates. Anterior sclera was stiffer than posterior sclera. In preparation to collect human tissue, viable storage techniques and postmortemtime frames for material testing were determined. Pediatric scleral specimens were evaluated up to 24 hours postmortem. Retinal and scleral fresh, frozen-then-thawed, and fixed specimens were also evaluated. Adult sclera maintains its integrity for 24 hours, butimmature sclera softened after 10 hours postmortem. Freezing then thawing had minimal effect on the material properties of retina and sclera suggesting this may be a suitable shipping method for the pediatric ocular tissues. The mechanical data were used to determine appropriate constitutive models for the sclera and retina. The material models were implemented into a FE model of the eye and validated against experimental ocular inflation tests. Finally, a whole model was generated to represent an infant eye subjected to shaking. Vitreoretinal interaction parameters were varied to analyze the changes in retinal stress and strain. Interaction parameters minimally affected retinal stress and strain. Overall, the equatorial retina experienced the greatest stress and strain. Stress and strain increased with the addition of shaking cycles. The anterior retina experienced greater strain than the posterior regionafter the first cycle and for the remaining rotation sequence. With additional refinement, these models will be valuable to investigate potential injury mechanisms of RH and potentially differentiate abuse-related RH.

Subjects/Keywords: Biomechanics; Eye; Finite element modeling; Material properties; Ocular; Pediatrics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Saffioti, J. M. (2014). Characterization of pediatric ocular material properties for implementation in finite element modeling. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3200/rec/430

Chicago Manual of Style (16^th Edition):

Saffioti, Jami Marie. “Characterization of pediatric ocular material properties for implementation in finite element modeling.” 2014. Doctoral Dissertation, University of Utah. Accessed March 07, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3200/rec/430.

MLA Handbook (7^th Edition):

Saffioti, Jami Marie. “Characterization of pediatric ocular material properties for implementation in finite element modeling.” 2014. Web. 07 Mar 2021.

Vancouver:

Saffioti JM. Characterization of pediatric ocular material properties for implementation in finite element modeling. [Internet] [Doctoral dissertation]. University of Utah; 2014. [cited 2021 Mar 07]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3200/rec/430.

Council of Science Editors:

Saffioti JM. Characterization of pediatric ocular material properties for implementation in finite element modeling. [Doctoral Dissertation]. University of Utah; 2014. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3200/rec/430

17. Calaresi, Anna Carolina Marques Ayres. Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP).

Degree: PhD, Engenharia Mineral, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3134/tde-23122014-160214/ ;

►

O presente trabalho tem como objetivo principal relacionar a utilização da argila, material de expressão artística e cultural a aspectos técnicos frequentemente ignorados pelos executores… (more)

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O presente trabalho tem como objetivo principal relacionar a utilização da argila, material de expressão artística e cultural a aspectos técnicos frequentemente ignorados pelos executores (artesãos artistas), a partir da análise de técnicas tradicionais de modelagem. Busca, portanto, compreender como a matéria-prima (argila), disponível para certa comunidade artesã, influenciou o desenvolvimento espontâneo de uma técnica de modelagem empregada em uma determinada região do Brasil, resultando em uma forma peculiar de expressão artística. A disponibilidade de um tipo de matéria-prima é um aspecto comumente negligenciado na análise de uma forma de expressão artística. Muitas vezes, em função das limitações tanto do material como da falta de conhecimento técnico, falhas do material são resolvidas com a utilização de técnicas desenvolvidas como fruto da experimentação e observação. Assim, objetiva investigar como as propriedades da argila são importantes na definição das características de um trabalho, na escolha do método de execução em suas diferentes fases. Como os executores conseguem superar certos problemas apresentados pelo material com o emprego de soluções experimentais. A metodologia abrange pesquisa bibliográfica, visita a campo para coleta de material para análise, caracterização do material, comparação entre resultados obtidos. Os resultados da pesquisa comprovaram que a matéria-prima utilizada por cada comunidade influencia o tipo de trabalho executado, promovendo a escolha de soluções estéticas e de modelagem adequadas às propriedades das argilas. Isto de certa forma inviabiliza a execução do trabalho com suas características particulares e autênticas em outra região, com uso de uma argila que não a disponível no local. Daí o caráter também documental do estudo, pois registra tanto a existência de uma matéria-prima finita e suas particularidades específicas, como também a técnica e a voz dessas pessoas, que de forma singular a utilizam como meio de expressão e subsistência.

The present work has as its main objective to relate the use of clay, artistic expression and cultural material technical aspects often ignored by the executors (artisans artists), from the traditional techniques of analysis modeling. Search, therefore, understand how the raw material (clay), available for certain artisan community, influenced the spontaneous development of a modeling technique employed in a particular region of Brazil, resulting in a peculiar form of artistic expression, because the availability of a kind of raw material is a commonly neglected aspect in the analysis of a form of artistic expression. Often, depending on the limitations of both the material and the lack of technical knowledge, \"failuresöf the material are resolved with the use of techniques developed as a result of experimentation and observation. Thus, aims to investigate how the properties of clay are important in defining the characteristics of a work, in choosing the method of execution in its different phases. As performers can övercome\"…

Advisors/Committee Members: Stellin Junior, Antônio.

Subjects/Keywords: Argilas; Artesanato; Ceramic; Cerâmica; Clays; Handcraft; Material properties; Propriedades dos materiais

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APA (6^th Edition):

Calaresi, A. C. M. A. (2014). Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP). (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3134/tde-23122014-160214/ ;

Chicago Manual of Style (16^th Edition):

Calaresi, Anna Carolina Marques Ayres. “Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP).” 2014. Doctoral Dissertation, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-23122014-160214/ ;.

MLA Handbook (7^th Edition):

Calaresi, Anna Carolina Marques Ayres. “Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP).” 2014. Web. 07 Mar 2021.

Vancouver:

Calaresi ACMA. Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP). [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3134/tde-23122014-160214/ ;.

Council of Science Editors:

Calaresi ACMA. Argila: matéria-prima para cerâmica popular - três casos - Rio Real (BA), Apiaí (SP) e Taubaté (SP). [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/3/3134/tde-23122014-160214/ ;

Temple University

18. Hemmasizadeh, Ali. Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation.

Degree: PhD, 2013, Temple University

URL: http://digital.library.temple.edu/u?/p245801coll10,240046

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Mechanical Engineering

Arterial mechanical properties have received increasing attention in the past few decades due to their vast effect on predicting cardiovascular diseases and injuries.… (more)

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Mechanical Engineering

Arterial mechanical properties have received increasing attention in the past few decades due to their vast effect on predicting cardiovascular diseases and injuries. The heterogeneity of thoracic aortic tissue was characterized in terms of viscoelastic material properties and correlations were obtained between these properties and tissue morphology. Additionally, the effect of material preservation on the material properties was determined. Changes in the mechanical properties of porcine thoracic aorta wall in the radial direction were characterized using a quasi-linear viscoelastic modeling of nanoindentaiton tests. Two layers of equal thickness were mechanically distinguishable in descending aorta based on the radial variations in the instantaneous Young's modulus E and reduced relaxation function G(t). Overall, comparison of E and Ginf of the outer half (70.27±2.47 kPa and 0.35±0.01) versus the inner half (60.32±1.65 kPa and 0.33±0.01) revealed that the outer half was stiffer and showed less relaxation. The results were used to explain local mechanisms of deformation, force transmission, tear propagation and failure in arteries. A multimodal and multidisciplinary approach was adopted to characterize the transmural morphological properties of aorta. The utilized methods included histology and multi-photon microscopy for describing the wall micro-architecture in the circumferential-radial plane, and Fourier-Transform infrared imaging spectroscopy for determining structural protein, and total protein content. The distributions of these quantified properties across the wall thickness of the porcine descending thoracic aorta were characterized and their relationship with the mechanical properties was determined. It was revealed that there is an increasing trend in mechanical stiffness, Elastic lamella Density (ELD), Structural Protein (SPR), Total Protein (TPR), and Elastin and Collagen Circumferential Percentage (ECP and CCP) from inner layers toward the outer ones. Finally two larger regions with equal thickness (inner and outer halves) were determined based on cluster analysis results of ELD which were in agreement with the cluster analysis of instantaneous Young's modulus. Changes to the local viscoelastic properties of fresh porcine thoracic aorta wall due to three common storage temperatures (+4 °C, -20 °C and -80 °C) within 24 hours, 48 hours, 1 week and 3 weeks were characterized. The changes to both elastic and relaxation behaviors were investigated considering the multilayer, heterogeneous nature of the aortic wall. For +4 °C storage samples, the average instantaneous Young's modulus (E) decreased while their permanent average relaxation amplitude (Ginf) increased and after 48 hours these changes became significant (10%, 13% for E, Ginf respectively). Generally, in freezer storage, E increased and Ginf showed no significant change. In prolonged preservation (> 1 week), the results of +20 °C storage showed significant increase in E (20% after 3 weeks) while this increase for -80 °C…

Advisors/Committee Members: Darvish, Kurosh;, Kiani, Mohammad F., Vorp, David, Autieri, Michael V., Hutapea, Parsaoran, Kent, Richard W.;.

Subjects/Keywords: Engineering; Mechanical engineering; Biomechanics;

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APA (6^th Edition):

Hemmasizadeh, A. (2013). Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation. (Doctoral Dissertation). Temple University. Retrieved from http://digital.library.temple.edu/u?/p245801coll10,240046

Chicago Manual of Style (16^th Edition):

Hemmasizadeh, Ali. “Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation.” 2013. Doctoral Dissertation, Temple University. Accessed March 07, 2021. http://digital.library.temple.edu/u?/p245801coll10,240046.

MLA Handbook (7^th Edition):

Hemmasizadeh, Ali. “Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation.” 2013. Web. 07 Mar 2021.

Vancouver:

Hemmasizadeh A. Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation. [Internet] [Doctoral dissertation]. Temple University; 2013. [cited 2021 Mar 07]. Available from: http://digital.library.temple.edu/u?/p245801coll10,240046.

Council of Science Editors:

Hemmasizadeh A. Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation. [Doctoral Dissertation]. Temple University; 2013. Available from: http://digital.library.temple.edu/u?/p245801coll10,240046

Vanderbilt University

19. Barnes, Stephanie Lynne. Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation.

Degree: PhD, Biomedical Engineering, 2011, Vanderbilt University

URL: http://hdl.handle.net/1803/11202

► The correlation between changes in mechanical properties and the onset of disease has led to an increased interest in assessing the elastic modulus of soft… (more)

▼ The correlation between changes in mechanical properties and the onset of disease has led to an increased interest in assessing the elastic modulus of soft tissues as a biomarker for disease progression. In addition, soft tissue mechanical properties are desired for biomechanical modeling for surgical procedure planning and intraoperative guidance. Unfortunately, soft tissue modulus evaluation has proven inherently difficult due to tissue consistency and shape, and the approaches are highly variant. The work presented in this thesis focuses on the development, application, and interrogation of a novel soft tissue mechanical property evaluation technique, termed the Model-Gel-Tissue (MGT) assay, which utilizes a combination of a gel embedding process, direct mechanical testing, and computational modeling to analyze the elastic properties of a soft tissue sample. The goal was to develop a repeatable and adaptable evaluation technique that also allowed for irregularly shaped specimens and standardization of the implementation. This was accomplished by a rapid-embedding of the tissue in a gel with surfaces of known and uniform shape. The mechanical testing output is then utilized in a finite element model of the system developed from computed tomography (CT) scans of the specimen, in order to evaluate the mechanical properties of the embedded tissue. Preliminary testing of the MGT assay was implemented using fibrotic murine livers to assess the capability of the technique relative to traditional indentation testing. The assay was then used to investigate the correlation between microstructural collagen content and macroscopic tissue modulus in a murine model of breast cancer. Subsequently, the assay was used to investigate the propensity of modulus as an indicator of treatment resistance in a second murine model of breast cancer. Finally, extensive sensitivity tests were performed to qualify the fidelity of the system. The results of this work show that modulus assessment via the MGT assay correlates to traditional testing, as well as to tissue collagen content, and the concatenation of the work indicates that the MGT assay serves as a reliable and adaptable soft tissue modulus evaluation system. Advisors/Committee Members: Dr. John C. Gore (committee member), Dr. Robert J. Roselli (committee member), Dr. Alissa M. Weaver (committee member), Dr. Thomas E. Yankeelov (committee member), Dr. Michael I. Miga (Committee Chair).

Subjects/Keywords: finite element modeling; mechanical properties; young's modulus; elastic modulus; material testing

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APA (6^th Edition):

Barnes, S. L. (2011). Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/11202

Chicago Manual of Style (16^th Edition):

Barnes, Stephanie Lynne. “Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation.” 2011. Doctoral Dissertation, Vanderbilt University. Accessed March 07, 2021. http://hdl.handle.net/1803/11202.

MLA Handbook (7^th Edition):

Barnes, Stephanie Lynne. “Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation.” 2011. Web. 07 Mar 2021.

Vancouver:

Barnes SL. Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation. [Internet] [Doctoral dissertation]. Vanderbilt University; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1803/11202.

Council of Science Editors:

Barnes SL. Interrogation of the Limitations and Capabilities of the Model-Gel-Tissue Assay and Application to Soft Tissue Modulus Evaluation. [Doctoral Dissertation]. Vanderbilt University; 2011. Available from: http://hdl.handle.net/1803/11202

Texas A&M University

20. Giugno, Matteo. Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data.

Degree: MS, Aerospace Engineering, 2013, Texas A&M University

URL: http://hdl.handle.net/1969.1/149252

► Identification of material properties has been highly discussed in recent times thanks to better technology availability and its application to the field of experimental mechanics.… (more)

Subjects/Keywords: MCMC; material properties; Finite Element Analysis; uncertainty quantification

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APA (6^th Edition):

Giugno, M. (2013). Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/149252

Chicago Manual of Style (16^th Edition):

Giugno, Matteo. “Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data.” 2013. Masters Thesis, Texas A&M University. Accessed March 07, 2021. http://hdl.handle.net/1969.1/149252.

MLA Handbook (7^th Edition):

Giugno, Matteo. “Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data.” 2013. Web. 07 Mar 2021.

Vancouver:

Giugno M. Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data. [Internet] [Masters thesis]. Texas A&M University; 2013. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1969.1/149252.

Council of Science Editors:

Giugno M. Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data. [Masters Thesis]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/149252

Delft University of Technology

21. van den Berg, Ronald (author). A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:5b325e30-b6af-4993-a662-8189c83275ff

► The majority of cardiovascular clinical events, which are the main causes of mortality and morbidity worldwide, are caused by atherosclerotic plaque rupture. This biomechanical event… (more)

▼ The majority of cardiovascular clinical events, which are the main causes of mortality and morbidity worldwide, are caused by atherosclerotic plaque rupture. This biomechanical event occurs when the local plaque stresses exceed its strength. The plaque stresses can be assessed by computational models to predict these events. Current approaches to obtaining the plaque material stiffness properties that these models require as input have large computational costs and are therefore far from being implemented for clinical use. This study aims to develop, validate, and apply for the first time, an approach to obtaining the material stiffness properties of atherosclerotic plaque tissue much faster by employing the virtual fields method (VFM). With this method, the virtual work principle is employed with boundary problem specific, kinematically admissible virtual fields to solve energy balance equations for the material stiffness parameters that are of interest. In this study a method is presented for obtaining the virtual fields for the specific application of intraluminally pressurised atherosclerotic plaque tissue. For the purpose of validation, full field displacement maps were computed at 100 mmHg using Finite Element (FE) models based on histological slides of atherosclerotic plaque tissue. To mimic a realistic situation, the resolution and noise levels of a clinical and high frequency ultrasound scanner were used. Although higher resolution deformation maps with smaller noise levels were shown to provide more accurate results, the VFM-based technique demonstrated good performance for both the high frequency and clinical ultrasound scanner settings tested. VFM was also used in a single case study to estimate the c₁ material parameter for a Neo-Hookean incompressible material model in the case of an atherosclerotic human coronary artery. The estimated c₁-values for this case were: 21.5 kPa for diseased intima, 13.3 kPa for lipid, and 23.6 kPa for wall tissue. These values were in good agreement with the reported values from literature. In this study, VFM was applied successfully for the material characterization of atherosclerotic plaques for the first time. It is more attractive than current approaches as it is computationally less expensive and has a great potential to be extended for material characterization of even more plaque components than employed in the current study. Advisors/Committee Members: Zadpoor, Amir (mentor), Tolou, Nima (graduation committee), Mirzaali Mazandarani, Mohammad (graduation committee), Akyildiz, Ali (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Atheroslcerosis; Virtual Fields Method; Material properties; Mechanical characterization; Ultrasound

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APA (6^th Edition):

van den Berg, R. (. (2019). A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5b325e30-b6af-4993-a662-8189c83275ff

Chicago Manual of Style (16^th Edition):

van den Berg, Ronald (author). “A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue.” 2019. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:5b325e30-b6af-4993-a662-8189c83275ff.

MLA Handbook (7^th Edition):

van den Berg, Ronald (author). “A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue.” 2019. Web. 07 Mar 2021.

Vancouver:

van den Berg R(. A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:5b325e30-b6af-4993-a662-8189c83275ff.

Council of Science Editors:

van den Berg R(. A Novel Approach to Estimating the Material Properties of Atherosclerotic Plaque Tissue. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:5b325e30-b6af-4993-a662-8189c83275ff

University of Washington

22. Stebbins, Michael Jay. Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot.

Degree: 2012, University of Washington

URL: http://hdl.handle.net/1773/20207

► Background: People with diabetes account for just over 8% of the US population, but they undergo approximately 63% of all non-traumatic lower limb amputations, or… (more)

▼ Background: People with diabetes account for just over 8% of the US population, but they undergo approximately 63% of all non-traumatic lower limb amputations, or 65,700 amputations per year. Eighty-five percent of those amputations are preceded by a foot ulcer. Diabetes has been shown to increase the stiffness of the plantar soft tissue in cadaveric samples, which could cause shifting of the magnitude and/or location of peak stresses within the foot. The purpose of this research project was to develop a magnetic resonance imaging (MRI) compatible, dynamic loading device that used cardiac-gated MRI imaging to obtain in vivo force versus deformation data for the plantar soft tissue. The resulting data will be used as inputs to an inverse finite element (FE) analysis to solve for soft tissue material properties in a patient-specific FE model. Methods : A computer-controlled, MRI-compatible loading device was designed, built, and tested in the laboratory to quantify performance parameters and ensure safe operation of the device before proceeding to pilot human studies. A test subject was loaded by the device while tissue thickness changes were measured via an ultrasound transducer attached to the loading device. Finally, an MRI pilot study was completed in which the heel of a test subject was dynamically loaded in compression at a 0.2 Hz rate inside an MRI while three-dimensional (3-D) images were obtained. Results: The amount of test subject movement and shift within the apparatus under loading were determined during ultrasound testing, as was a displacement calibration curve for normal human soft tissue. Force on the foot and displacement of the soft tissue during 12 phases of loading and unloading were obtained from the MRI pilot study, from which the stiffness of the plantar skin and adipose tissue was calculated to be 55 N/mm. Conclusion : An MRI-compatible, computer-controlled loading device was successfully designed, built, and used in a pilot human study. As the first device of its kind, it will prove beneficial to the research and medical communities by increasing understanding of the initiation of foot ulcers in people with diabetes. Advisors/Committee Members: Ledoux, William R (advisor).

Subjects/Keywords: FEA; inverse; material properties; plantar; soft tissue; Biomechanics; Mechanical engineering

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APA (6^th Edition):

Stebbins, M. J. (2012). Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot. (Thesis). University of Washington. Retrieved from http://hdl.handle.net/1773/20207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Stebbins, Michael Jay. “Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot.” 2012. Thesis, University of Washington. Accessed March 07, 2021. http://hdl.handle.net/1773/20207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Stebbins, Michael Jay. “Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot.” 2012. Web. 07 Mar 2021.

Vancouver:

Stebbins MJ. Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot. [Internet] [Thesis]. University of Washington; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1773/20207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stebbins MJ. Obtaining Material Properties of the Plantar Soft Tissue for a Patient-Specific Finite Element Model of the Foot. [Thesis]. University of Washington; 2012. Available from: http://hdl.handle.net/1773/20207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brigham Young University

23. Sypherd, Shane Dirk. Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes.

Degree: MS, 2019, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8733&context=etd

► This work characterizes the material properties of carbon infiltrated carbon nanotube (CI- CNT) structures. The impacts of temperature, time, and hydrogen flow rates on the… (more)

Subjects/Keywords: CI-CNT; carbon nanotubes; material properties; 3-point bend test; Engineering

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APA (6^th Edition):

Sypherd, S. D. (2019). Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8733&context=etd

Chicago Manual of Style (16^th Edition):

Sypherd, Shane Dirk. “Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes.” 2019. Masters Thesis, Brigham Young University. Accessed March 07, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8733&context=etd.

MLA Handbook (7^th Edition):

Sypherd, Shane Dirk. “Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes.” 2019. Web. 07 Mar 2021.

Vancouver:

Sypherd SD. Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes. [Internet] [Masters thesis]. Brigham Young University; 2019. [cited 2021 Mar 07]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8733&context=etd.

Council of Science Editors:

Sypherd SD. Effects of Infiltration Temperature, Time, and Gas Flow Rate on Material Properties of Carbon Infiltration Carbon Nanotubes. [Masters Thesis]. Brigham Young University; 2019. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8733&context=etd

Princeton University

24. Morris, Isabel Mae. Ground penetrating radar attributes for nondestructive characterization of concrete .

Degree: PhD, 2020, Princeton University

URL: http://arks.princeton.edu/ark:/88435/dsp019z9032791

► Accurate estimates of in situ material properties are an essential component of effective decision making, conservation, and maintenance of civil infrastructure, historic buildings, and geotechnical… (more)

▼ Accurate estimates of in situ material properties are an essential component of effective decision making, conservation, and maintenance of civil infrastructure, historic buildings, and geotechnical projects. Standard in situ material characterization methods for soils and construction materials like concrete include reliable but invasive approaches like core sampling. Where invasive tests are not possible, alternatives such as ultrasonic pulse velocity or rebound hammer tests must be used; these tests can be difficult to interpret or perform reliably and only provide information about discrete points. Another technique, ground penetrating radar (GPR), is a versatile, efficient, and accessible method for feature detection that can provide continuous spatial information about a site. Those advantages support the prevalence of GPR in civil infrastructure and historic site management, precisely the fields that stand to benefit from a nondestructive in situ material characterization technique. Furthermore, GPR is often cited as being sensitive to mechanical properties, but the link between physical properties and electromagnetic properties as recorded by GPR signals is not fully characterized or understood. As such, this thesis explores the fundamental relationships between GPR attributes and potential predictions of material properties from those GPR attributes. Included first is an introduction to the GPR method and the limits of qualitative GPR data analysis through a survey performed at a medieval castle. Then, the technique of attribute analysis is introduced as a quantitative tool to interpret and analyze GPR data. The GPR attributes of the concrete from two different construction phases of Streicker Bridge are compared to determine if attributes are sensitive to relative differences in material properties. This chapter motivates an experiment to establish and characterize the relationship between GPR attributes and porosity, density, and compressive strength in concrete samples. Relationships between the GPR attributes and measured material properties are described by regression models trained and tested on the laboratory data. Those models can predict the porosity and density of lab samples and the compressive strength of the concrete in Streicker Bridge from the GPR attributes alone. Finally, the impact and future directions of this research are discussed. Advisors/Committee Members: Glisic, Branko (advisor).

Subjects/Keywords: concrete; ground penetrating radar; material properties; nondestructive evaluation; supervised learning

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APA (6^th Edition):

Morris, I. M. (2020). Ground penetrating radar attributes for nondestructive characterization of concrete . (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp019z9032791

Chicago Manual of Style (16^th Edition):

Morris, Isabel Mae. “Ground penetrating radar attributes for nondestructive characterization of concrete .” 2020. Doctoral Dissertation, Princeton University. Accessed March 07, 2021. http://arks.princeton.edu/ark:/88435/dsp019z9032791.

MLA Handbook (7^th Edition):

Morris, Isabel Mae. “Ground penetrating radar attributes for nondestructive characterization of concrete .” 2020. Web. 07 Mar 2021.

Vancouver:

Morris IM. Ground penetrating radar attributes for nondestructive characterization of concrete . [Internet] [Doctoral dissertation]. Princeton University; 2020. [cited 2021 Mar 07]. Available from: http://arks.princeton.edu/ark:/88435/dsp019z9032791.

Council of Science Editors:

Morris IM. Ground penetrating radar attributes for nondestructive characterization of concrete . [Doctoral Dissertation]. Princeton University; 2020. Available from: http://arks.princeton.edu/ark:/88435/dsp019z9032791

Michigan Technological University

25. Hepokoski, Mark A. Development of an In Situ Measurement Device for Obtaining Material Thermal Properties.

Degree: PhD, Department of Mechanical Engineering-Engineering Mechanics, 2013, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etds/745

► This thesis presents a methodology for measuring thermal properties in situ, with a special focus on obtaining properties of layered stack-ups commonly used in… (more)

Subjects/Keywords: In Situ; Material Properties; Measurement Device; Modeling; Simulation; Thermal; Mechanical Engineering

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APA (6^th Edition):

Hepokoski, M. A. (2013). Development of an In Situ Measurement Device for Obtaining Material Thermal Properties. (Doctoral Dissertation). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etds/745

Chicago Manual of Style (16^th Edition):

Hepokoski, Mark A. “Development of an In Situ Measurement Device for Obtaining Material Thermal Properties.” 2013. Doctoral Dissertation, Michigan Technological University. Accessed March 07, 2021. https://digitalcommons.mtu.edu/etds/745.

MLA Handbook (7^th Edition):

Hepokoski, Mark A. “Development of an In Situ Measurement Device for Obtaining Material Thermal Properties.” 2013. Web. 07 Mar 2021.

Vancouver:

Hepokoski MA. Development of an In Situ Measurement Device for Obtaining Material Thermal Properties. [Internet] [Doctoral dissertation]. Michigan Technological University; 2013. [cited 2021 Mar 07]. Available from: https://digitalcommons.mtu.edu/etds/745.

Council of Science Editors:

Hepokoski MA. Development of an In Situ Measurement Device for Obtaining Material Thermal Properties. [Doctoral Dissertation]. Michigan Technological University; 2013. Available from: https://digitalcommons.mtu.edu/etds/745

University of Ottawa

26. MacMaster, Emily. The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout.

Degree: MSc, Sciences / Science, 2020, University of Ottawa

URL: http://dx.doi.org/10.20381/ruor-25656

► Studies of the microstructure of tendon-bone attachments in mammals have shed light on their role in mediating efficient force transfer between tendon and bone, two… (more)

▼ Studies of the microstructure of tendon-bone attachments in mammals have shed light on their role in mediating efficient force transfer between tendon and bone, two tissues that differ vastly in their structure, composition, and material properties. Studies have also elucidated the importance of mechanical stimulation in maintaining tendon-bone attachment structures so that they may function successfully in dissipating mechanical stresses at the tendon-bone interface, to minimize the risk of tissue failure. Gross anatomical studies in fish have focused on identifying pathways of myomere contractile force transmission to the backbone of the fish, via connective tissue septa, to achieve body undulation. Little focus has been placed on how these connective tissues connect to the bone at the microscopic level to achieve force transfer. Moreover, whether or not these attachments are capable of undergoing remodeling in response to novel force regimes—which may influence their function—remains to be elucidated. First, we characterized the microstructure and material properties of the epicentral tendon-vertebra attachment in rainbow trout by conducting histology and tensile-testing. Individual collagen fibers of the epicentral tendon projected directly into the cancellous bone of the vertebra. We observed rostral-to-caudal trends in material properties for attachments found at different positions within the region spanning the dorsal and adipose fin, suggesting that attachments differed in their structure and/or composition at different positions along the backbone. Furthermore, the angle of the epicentral tendon with respect to the bone influenced the material properties and structural integrity of the attachments during tensile-testing, suggesting that attachments may be optimized to transfer force along particular angles. Second, we studied the effect of unloading on the material properties of the epicentral tendon-vertebra attachment by severing a subset of epicentral tendons on one side of rainbow trout. Severing of epicentral tendons had no effect on attachment material properties, suggesting that attachments did not undergo any alterations in structure and/or composition. We propose that the contiguous network of connective tissues in which the epicentral tendons are embedded as well as the fish’s gross musculature may have supported the maintenance of function of the epicentral tendon-vertebra attachments. Advisors/Committee Members: Standen, Emily (supervisor), Laneuville, Odette (supervisor).

Subjects/Keywords: Fish; Epicentral tendon; Tendon-bone attachment; Microstructure; Material properties; Unloading; Remodeling

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APA (6^th Edition):

MacMaster, E. (2020). The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout. (Masters Thesis). University of Ottawa. Retrieved from http://dx.doi.org/10.20381/ruor-25656

Chicago Manual of Style (16^th Edition):

MacMaster, Emily. “The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout.” 2020. Masters Thesis, University of Ottawa. Accessed March 07, 2021. http://dx.doi.org/10.20381/ruor-25656.

MLA Handbook (7^th Edition):

MacMaster, Emily. “The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout.” 2020. Web. 07 Mar 2021.

Vancouver:

MacMaster E. The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout. [Internet] [Masters thesis]. University of Ottawa; 2020. [cited 2021 Mar 07]. Available from: http://dx.doi.org/10.20381/ruor-25656.

Council of Science Editors:

MacMaster E. The Microstructure and Material Properties of the Epicentral Tendon-Vertebra Attachment in Rainbow Trout. [Masters Thesis]. University of Ottawa; 2020. Available from: http://dx.doi.org/10.20381/ruor-25656

Brno University of Technology

27. Lauš, Ladislav. Dřevo jako konstrukční materiál: Wood as a construction material.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/27533

► The aim of this bachelor’s thesis is to elucidate the structure and properties of wood as a material. It includes the most important facts about… (more)

Subjects/Keywords: Dřevo; Vlastnosti; Materiál; Konstrukce; Wood; Properties; Material; Construction

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APA (6^th Edition):

Lauš, L. (2019). Dřevo jako konstrukční materiál: Wood as a construction material. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/27533

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lauš, Ladislav. “Dřevo jako konstrukční materiál: Wood as a construction material.” 2019. Thesis, Brno University of Technology. Accessed March 07, 2021. http://hdl.handle.net/11012/27533.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lauš, Ladislav. “Dřevo jako konstrukční materiál: Wood as a construction material.” 2019. Web. 07 Mar 2021.

Vancouver:

Lauš L. Dřevo jako konstrukční materiál: Wood as a construction material. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11012/27533.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lauš L. Dřevo jako konstrukční materiál: Wood as a construction material. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/27533

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

28. Bartanus, Jody Bernard. An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior.

Degree: MS, Mechanical Engineering, 2018, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/2968

► Geometric defects play a significant role in affecting both material properties and material behavior. Defects occur in a material due to manufacturing imperfections as well… (more)

▼ Geometric defects play a significant role in affecting both material properties and material behavior. Defects occur in a material due to manufacturing imperfections as well as undesired loading such as incidental impacts. With the popularity of composites and additively manufactured metals in structural applications and component design, the effects of their material-specific defects are important to understand to have confidence in the safety of their intended uses. The use of additive manufacturing (AM) in metals has become a popular choice due to its ability to create geometrically complex parts. In this study, the effect of printed defects and build plate location on the material behavior of AM 316 stainless steel (SS) was examined. Tapered tubular specimens manufactured with intentional defects consisting of a through hole, quarter crack, or internal void were tested in tension and compared to a pristine specimen. The through hole and quarter crack defects resulted in a reduction in the ultimate tensile strength and global fracture strain. Fracture toughness experiments were performed on two different notch types to determine an effective KIC value on thin, AM printed specimens. Compression experiments were performed to analyze the effect of distance from the build plate and build plate location on the compressive yield strength and Young’s Modulus. It was found that both material properties improved as distance from the build plate decreased. A variance in material properties dependent on the build plate location was observed for all experiments. Composites have become widely used due to their high specific strength and stiffness. During compression loading, composites can experience ply separation, or delamination, due to buckling behavior both locally and globally. An embedded delamination occurs when there is ply separation within the composite. This can result from manufacturing defects or incidental impacts. In this study, the effect of embedded delaminations on the buckling behavior of Carbon Fiber/Epoxy laminate composite plates was examined experimentally. A study was performed to examine the effect of the size of a single artificially embedded delamination on the load carrying capacity and surface strain field of laminate composite plates. This testing was compared to that of laminate composite plates made without the use of artificially embedded delaminations. Results of this study indicated there was a critical size of an embedded delamination that resulted in a significant reduction in load carrying capacity subjected to buckling. This led to further testing to examine the behavior of laminate composite plates artificially embedded with double delaminations of the same total area with varied spacing. This revealed that there was no discernible difference in the load carrying capacity of embedded single delaminations compared to embedded double delaminations of the same area due to increased scatter. Advisors/Committee Members: Garrett Pataky, Committee Chair, Huijuan Zhao, Hongseok Choi.

Subjects/Keywords: Additive Manufacturing; Composites; Defects; Delaminations; Material Properties; Metals

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bartanus, J. B. (2018). An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/2968

Chicago Manual of Style (16^th Edition):

Bartanus, Jody Bernard. “An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior.” 2018. Masters Thesis, Clemson University. Accessed March 07, 2021. https://tigerprints.clemson.edu/all_theses/2968.

MLA Handbook (7^th Edition):

Bartanus, Jody Bernard. “An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior.” 2018. Web. 07 Mar 2021.

Vancouver:

Bartanus JB. An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior. [Internet] [Masters thesis]. Clemson University; 2018. [cited 2021 Mar 07]. Available from: https://tigerprints.clemson.edu/all_theses/2968.

Council of Science Editors:

Bartanus JB. An Experimental Study of Geometric Defects and Their Significance on Material Properties and Behavior. [Masters Thesis]. Clemson University; 2018. Available from: https://tigerprints.clemson.edu/all_theses/2968

University of Waterloo

29. Yin, Penghui. Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach.

Degree: 2015, University of Waterloo

URL: http://hdl.handle.net/10012/10079

► Multiferroic materials have been extensively studied as they exhibit both magnetic and electric properties simultaneously, and could be potential candidate materials for the new generation… (more)

▼ Multiferroic materials have been extensively studied as they exhibit both magnetic and electric properties simultaneously, and could be potential candidate materials for the new generation of magnetoelectric (ME) devices. Perovskite materials with room-temperature ferroelectric ordering and simple crystal structure have emerged as favorable building blocks for developing multiferroic devices. In this work, we investigated different approaches to introducing magnetic properties into ferroelectric BaTiO3 and PbTiO3 nanostructures synthesized by hydrothermal method. Specifically, we investigated doping of perovskite nanostructures with magnetic centers as an intrinsic approach, and the formation of nanocomposite with ferrimagnetic spinel Co0.6Fe2.4O4 nanocrystals as an extrinsic approach to multiferroic nanostructures with different morphologies. Investigation of morphology, crystal structure, and magnetic properties of nanoscale perovskite materials and their heterostructures shows promising results towards developing materials which exhibit room-temperature multiferroic properties. Mn-doped BaTiO3 nanoparticles (NPs) were synthesized with different size and doping concentrations. Small particle size and high doping concentration favor the crystal phase transformation from tetragonal to cubic crystal structure. Mn-doped BaTiO3 NPs prepared in ethanol with an average size of ca. 6.4 nm show evidence of tetragonal crystal structure with doping concentration up to 10%. UV-visible absorption spectrum of the colloidal sample indicates the existence of Mn3+ ions in BaTiO3 lattice which is further confirmed by Mn L-edge X-ray absorption spectrum. Additional magnetic and magneto-optical properties measurements could shed light on the single-phase multiferroic nanomaterials. Multiferroic composites were attempted by incorporating ferroelectric BaTiO3 and ferrimagnetic Co0.6Fe2.4O4 NPs through impregnation or spin coating. Multi-domain structure is observed in high resolution transmission electron microscopy (HRTEM) images of the nanocomposite consisting of BaTiO3 and Co0.6Fe2.4O4 nanostructures. X-ray diffraction and Raman spectroscopy measurements indicate the existence of tetragonality in both type of composites after annealing at 373 K. In addition, magnetic measurements suggest that the composites have enhanced coercivity compared to ferrimagnetic component alone. Transparent multiferroic multilayer structure was obtained by spin-coating transparent PbTiO3 thin films with Co0.6Fe2.4O4 nanocrystals. This structure provides an opportunity to study the ME coupling between two building blocks with different magneto-optical spectroscopies.

Subjects/Keywords: Design of multiferroic material; Crystal structure; Magnetic properties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yin, P. (2015). Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10079

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yin, Penghui. “Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach.” 2015. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/10079.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yin, Penghui. “Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach.” 2015. Web. 07 Mar 2021.

Vancouver:

Yin P. Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach. [Internet] [Thesis]. University of Waterloo; 2015. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/10079.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yin P. Exploring the Design of Multiferroic Materials by Nanocrystal Building Block Approach. [Thesis]. University of Waterloo; 2015. Available from: http://hdl.handle.net/10012/10079

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

30. Dellinger, Sarah Bonham. Material properties of skin in a flying snake (Chrysopelea ornata).

Degree: MS, Engineering Mechanics, 2011, Virginia Tech

URL: http://hdl.handle.net/10919/42721

► The genus Chrysopelea encompasses the â flyingâ snakes. This taxon has the ability to glide via lateral aerial undulation and dorsoventral body flattening, a skill… (more)

Subjects/Keywords: skin; digital image correlation; material properties; flying snakes

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dellinger, S. B. (2011). Material properties of skin in a flying snake (Chrysopelea ornata). (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/42721

Chicago Manual of Style (16^th Edition):

Dellinger, Sarah Bonham. “Material properties of skin in a flying snake (Chrysopelea ornata).” 2011. Masters Thesis, Virginia Tech. Accessed March 07, 2021. http://hdl.handle.net/10919/42721.

MLA Handbook (7^th Edition):

Dellinger, Sarah Bonham. “Material properties of skin in a flying snake (Chrysopelea ornata).” 2011. Web. 07 Mar 2021.

Vancouver:

Dellinger SB. Material properties of skin in a flying snake (Chrysopelea ornata). [Internet] [Masters thesis]. Virginia Tech; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10919/42721.

Council of Science Editors:

Dellinger SB. Material properties of skin in a flying snake (Chrysopelea ornata). [Masters Thesis]. Virginia Tech; 2011. Available from: http://hdl.handle.net/10919/42721

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Open Access Theses and Dissertations