subject:(Concentration factor)

NSYSU

1. Lin, Yu-Sheng. A New Fund Performance Measure in Taiwan Equity Mutual Funds.

Degree: Master, Finance, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016114-183408

► The purpose of this paper is to provide investors with a practical composite index for selecting better funds. We use factor analysis to construct the… (more)

Subjects/Keywords: portfolio concentration; composite performance index; performance persistence; active management; factor analysis

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APA (6^th Edition):

Lin, Y. (2014). A New Fund Performance Measure in Taiwan Equity Mutual Funds. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016114-183408

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):

Lin, Yu-Sheng. “A New Fund Performance Measure in Taiwan Equity Mutual Funds.” 2014. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016114-183408.

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

MLA Handbook (7^th Edition):

Lin, Yu-Sheng. “A New Fund Performance Measure in Taiwan Equity Mutual Funds.” 2014. Web. 02 Mar 2021.

Vancouver:

Lin Y. A New Fund Performance Measure in Taiwan Equity Mutual Funds. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016114-183408.

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

Council of Science Editors:

Lin Y. A New Fund Performance Measure in Taiwan Equity Mutual Funds. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016114-183408

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

Virginia Commonwealth University

2. Medina, Hector. Early prediction of fracture in bodies bounded by random rough surfaces.

Degree: PhD, Mechanical and Nuclear Engineering, 2014, Virginia Commonwealth University

URL: https://doi.org/10.25772/B5RC-6D72 ; https://scholarscompass.vcu.edu/etd/3523

► Under certain loading conditions, surfaces topography coupled with materials degree of brittleness can significantly compromise the mechanical performance of structures. The foregoing remains valid… (more)

▼ Under certain loading conditions, surfaces topography coupled with materials degree of brittleness can significantly compromise the mechanical performance of structures. The foregoing remains valid even if roughness is intentionally introduced for engineering reasons. In either case, stress can concentrate. The case of the stress concentration in surfaces having randomly distributed pits is a problem that, although being very practical, yet it remains unsolved. The complexity of a random configuration renders difficult the problem of analytically finding relationships between surface parameters and markers indicative of mechanical failure. Another difficulty is the reproducibility of replicates of specimens possessing random rough surfaces, for destructive testing followed by statistical analysis. An experimental technique to produce highly controlled replicates of random rough surfaces (including modeling of degradation growth) was developed. This method was used to experimentally and statistically study the effects on fracture of early randomly degraded surfaces of poly methyl methacrylate (PMMA) versus topographical parameters. Growth of degradation was assumed to go from an engineering surface to one whose heights are normally distributed. (Early stage of degradation is meant to be that level of roughness which is in the neighborhood of the critical flaw size for a given material). Among other findings, it was found that neither stress nor strain alone can be used to predict fracture at this early stage of degradation. However, fracture location was found to be strongly correlated to the ratio of the root-mean square roughness (RMS) to auto correlation length (ACL), above some RMS threshold. This correlation decreases as the material becomes less brittle (i.e., decrease of Young’s modulus or increase of percent of elongation). Simultaneously, a boundary value problem involving traction-free random rough surfaces was solved using a perturbation method, assuming elastic and isotropic conditions. For small RMS/ACL ratio, the solution for the RMS stress concentration factor, kt was found to be: kt = 1 + 2*SQRT(2)*(RMS/ACL), which agrees very well with the experimental work. Finally, a generalization of stress concentration factor formulas for several geometrical configurations and loading conditions into the Modified Inglis Formula was proposed. Finite element analysis was carried out and comparison was made with both experimental and analytical results. Applications of these results are broad. In surface engineering, for example, our analytical solution can be coupled with Fick’s Law to find critical conditions under which a film could become unstable to random roughness. Additionally, in design and maintenance of surfaces in service, it can be used to preliminarily assess how stress concentrates in surfaces where well defined notches cannot be used as an approximation. Advisors/Committee Members: Gary Tepper.

Subjects/Keywords: fracture mechanics; stress concentration factor; random rough surfaces; Mechanical Engineering

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APA (6^th Edition):

Medina, H. (2014). Early prediction of fracture in bodies bounded by random rough surfaces. (Doctoral Dissertation). Virginia Commonwealth University. Retrieved from https://doi.org/10.25772/B5RC-6D72 ; https://scholarscompass.vcu.edu/etd/3523

Chicago Manual of Style (16^th Edition):

Medina, Hector. “Early prediction of fracture in bodies bounded by random rough surfaces.” 2014. Doctoral Dissertation, Virginia Commonwealth University. Accessed March 02, 2021. https://doi.org/10.25772/B5RC-6D72 ; https://scholarscompass.vcu.edu/etd/3523.

MLA Handbook (7^th Edition):

Medina, Hector. “Early prediction of fracture in bodies bounded by random rough surfaces.” 2014. Web. 02 Mar 2021.

Vancouver:

Medina H. Early prediction of fracture in bodies bounded by random rough surfaces. [Internet] [Doctoral dissertation]. Virginia Commonwealth University; 2014. [cited 2021 Mar 02]. Available from: https://doi.org/10.25772/B5RC-6D72 ; https://scholarscompass.vcu.edu/etd/3523.

Council of Science Editors:

Medina H. Early prediction of fracture in bodies bounded by random rough surfaces. [Doctoral Dissertation]. Virginia Commonwealth University; 2014. Available from: https://doi.org/10.25772/B5RC-6D72 ; https://scholarscompass.vcu.edu/etd/3523

Universidade Nova

3. Côrte-Real, Filipe José Correia. A look into the cross-section of industry stock returns.

Degree: 2013, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/9840

►

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business… (more)

Subjects/Keywords: Industry size; Industry concentration; Risk premium; Three-factor model

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APA (6^th Edition):

Côrte-Real, F. J. C. (2013). A look into the cross-section of industry stock returns. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/9840

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):

Côrte-Real, Filipe José Correia. “A look into the cross-section of industry stock returns.” 2013. Thesis, Universidade Nova. Accessed March 02, 2021. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/9840.

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

MLA Handbook (7^th Edition):

Côrte-Real, Filipe José Correia. “A look into the cross-section of industry stock returns.” 2013. Web. 02 Mar 2021.

Vancouver:

Côrte-Real FJC. A look into the cross-section of industry stock returns. [Internet] [Thesis]. Universidade Nova; 2013. [cited 2021 Mar 02]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/9840.

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

Council of Science Editors:

Côrte-Real FJC. A look into the cross-section of industry stock returns. [Thesis]. Universidade Nova; 2013. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/9840

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

Cranfield University

4. Rezig, E. Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels.

Degree: MPhil, 2011, Cranfield University

URL: http://dspace.lib.cranfield.ac.uk/handle/1826/8047

► This research project investigates the influence of corrosion flaws on the initiation of fatigue cracks in high strength stainless steels, and more particularly in 15-5… (more)

Subjects/Keywords: 15-5PH; stainless steel; crevice corrosion; fatigue; stress concentration factor

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APA (6^th Edition):

Rezig, E. (2011). Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels. (Masters Thesis). Cranfield University. Retrieved from http://dspace.lib.cranfield.ac.uk/handle/1826/8047

Chicago Manual of Style (16^th Edition):

Rezig, E. “Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels.” 2011. Masters Thesis, Cranfield University. Accessed March 02, 2021. http://dspace.lib.cranfield.ac.uk/handle/1826/8047.

MLA Handbook (7^th Edition):

Rezig, E. “Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels.” 2011. Web. 02 Mar 2021.

Vancouver:

Rezig E. Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels. [Internet] [Masters thesis]. Cranfield University; 2011. [cited 2021 Mar 02]. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/8047.

Council of Science Editors:

Rezig E. Influence of corrosion damage on the initiation of fatigue cracks in high strength stainless steels. [Masters Thesis]. Cranfield University; 2011. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/8047

University of Georgia

5. Hand, Lauren Michele. An investigation of warm season spatial rainfall variability in Oklahoma City.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/24627

► Precipitation measurements provide essential information about the water cycle and the distribution of heat in urban environments. The study uses nine years (1998-2006) of warm-season… (more)

Subjects/Keywords: Precipitation; urban; Oklahoma City; TRMM; satellite; gauge; Concentration Factor.

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APA (6^th Edition):

Hand, L. M. (2014). An investigation of warm season spatial rainfall variability in Oklahoma City. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/24627

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):

Hand, Lauren Michele. “An investigation of warm season spatial rainfall variability in Oklahoma City.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/24627.

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

MLA Handbook (7^th Edition):

Hand, Lauren Michele. “An investigation of warm season spatial rainfall variability in Oklahoma City.” 2014. Web. 02 Mar 2021.

Vancouver:

Hand LM. An investigation of warm season spatial rainfall variability in Oklahoma City. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/24627.

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

Council of Science Editors:

Hand LM. An investigation of warm season spatial rainfall variability in Oklahoma City. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/24627

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

Indian Institute of Science

6. Koushik, S. Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method.

Degree: MSc Engg, Faculty of Engineering, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3632

► The presence of notches or cracks causes stresses to amplify in nearby regions. This phenomenon is studied by estimating the Stress Concentration Factor (SCF) for… (more)

Subjects/Keywords: Stress Concentration Factor (SCF); Stress Intensity Factor (SIF); Semi-Circular Edge Notch; Semi-Infinite Domain; Mechanical Engineering

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APA (6^th Edition):

Koushik, S. (2018). Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3632

Chicago Manual of Style (16^th Edition):

Koushik, S. “Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method.” 2018. Masters Thesis, Indian Institute of Science. Accessed March 02, 2021. http://etd.iisc.ac.in/handle/2005/3632.

MLA Handbook (7^th Edition):

Koushik, S. “Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method.” 2018. Web. 02 Mar 2021.

Vancouver:

Koushik S. Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method. [Internet] [Masters thesis]. Indian Institute of Science; 2018. [cited 2021 Mar 02]. Available from: http://etd.iisc.ac.in/handle/2005/3632.

Council of Science Editors:

Koushik S. Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method. [Masters Thesis]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3632

Cranfield University

7. Lozano Minguez, Estivaliz. Fatigue and fracture mechanics of offshore wind turbine support structures.

Degree: PhD, 2015, Cranfield University

URL: http://dspace.lib.cranfield.ac.uk/handle/1826/9756

► Wind power, especially offshore, is considered to be one of the most promising sources of ‘clean’ energy towards meeting the EU targets for 2020 and… (more)

Subjects/Keywords: Tubular joint; Offshore wind support; Stress concentration factor; Stress intensity factor; S-N curve; Semi-elliptical crack; Tubular joint weld profile

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APA (6^th Edition):

Lozano Minguez, E. (2015). Fatigue and fracture mechanics of offshore wind turbine support structures. (Doctoral Dissertation). Cranfield University. Retrieved from http://dspace.lib.cranfield.ac.uk/handle/1826/9756

Chicago Manual of Style (16^th Edition):

Lozano Minguez, Estivaliz. “Fatigue and fracture mechanics of offshore wind turbine support structures.” 2015. Doctoral Dissertation, Cranfield University. Accessed March 02, 2021. http://dspace.lib.cranfield.ac.uk/handle/1826/9756.

MLA Handbook (7^th Edition):

Lozano Minguez, Estivaliz. “Fatigue and fracture mechanics of offshore wind turbine support structures.” 2015. Web. 02 Mar 2021.

Vancouver:

Lozano Minguez E. Fatigue and fracture mechanics of offshore wind turbine support structures. [Internet] [Doctoral dissertation]. Cranfield University; 2015. [cited 2021 Mar 02]. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/9756.

Council of Science Editors:

Lozano Minguez E. Fatigue and fracture mechanics of offshore wind turbine support structures. [Doctoral Dissertation]. Cranfield University; 2015. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/9756

University of Miami

8. Xu, Yue. Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality.

Degree: MS, Civil, Architectural and Environmental Engineering (Engineering), 2007, University of Miami

URL: https://scholarlyrepository.miami.edu/oa_theses/106

► This research aims at evaluating a new ventilation concept: personal displacement ventilation (PDV) for improving indoor air quality. The new ventilation method combines room… (more)

Subjects/Keywords: Ventilation Bypass Factor; Local Average Concentration

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APA (6^th Edition):

Xu, Y. (2007). Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality. (Thesis). University of Miami. Retrieved from https://scholarlyrepository.miami.edu/oa_theses/106

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):

Xu, Yue. “Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality.” 2007. Thesis, University of Miami. Accessed March 02, 2021. https://scholarlyrepository.miami.edu/oa_theses/106.

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

MLA Handbook (7^th Edition):

Xu, Yue. “Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality.” 2007. Web. 02 Mar 2021.

Vancouver:

Xu Y. Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality. [Internet] [Thesis]. University of Miami; 2007. [cited 2021 Mar 02]. Available from: https://scholarlyrepository.miami.edu/oa_theses/106.

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

Council of Science Editors:

Xu Y. Modeling and Evaluation of Personal Displacement Ventilation System for Improving Indoor Air Quality. [Thesis]. University of Miami; 2007. Available from: https://scholarlyrepository.miami.edu/oa_theses/106

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

Oklahoma State University

9. Mauk, Matthew L. Review of the Accuracy of Stress Concentration Factors.

Degree: Mechanical & Aerospace Engineering, 2010, Oklahoma State University

URL: http://hdl.handle.net/11244/9994

► Engineers rely on published results and data to be correct. If it wasn't, then they would be "reinventing the wheel" every time. This research will… (more)

Subjects/Keywords: finite elements; photoelastic; stress concentration factor

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APA (6^th Edition):

Mauk, M. L. (2010). Review of the Accuracy of Stress Concentration Factors. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/9994

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):

Mauk, Matthew L. “Review of the Accuracy of Stress Concentration Factors.” 2010. Thesis, Oklahoma State University. Accessed March 02, 2021. http://hdl.handle.net/11244/9994.

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

MLA Handbook (7^th Edition):

Mauk, Matthew L. “Review of the Accuracy of Stress Concentration Factors.” 2010. Web. 02 Mar 2021.

Vancouver:

Mauk ML. Review of the Accuracy of Stress Concentration Factors. [Internet] [Thesis]. Oklahoma State University; 2010. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11244/9994.

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

Council of Science Editors:

Mauk ML. Review of the Accuracy of Stress Concentration Factors. [Thesis]. Oklahoma State University; 2010. Available from: http://hdl.handle.net/11244/9994

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

University of Alberta

10. Puttagunta, Anuradha L. Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells.

Degree: MS, Department of Physiology, 1991, University of Alberta

URL: https://era.library.ualberta.ca/files/sq87bw403

Subjects/Keywords: Growth hormone releasing factor.; Hydrogen-ion concentration.

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APA (6^th Edition):

Puttagunta, A. L. (1991). Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/sq87bw403

Chicago Manual of Style (16^th Edition):

Puttagunta, Anuradha L. “Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells.” 1991. Masters Thesis, University of Alberta. Accessed March 02, 2021. https://era.library.ualberta.ca/files/sq87bw403.

MLA Handbook (7^th Edition):

Puttagunta, Anuradha L. “Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells.” 1991. Web. 02 Mar 2021.

Vancouver:

Puttagunta AL. Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells. [Internet] [Masters thesis]. University of Alberta; 1991. [cited 2021 Mar 02]. Available from: https://era.library.ualberta.ca/files/sq87bw403.

Council of Science Editors:

Puttagunta AL. Role of intracellular pH on growth hormone releasing hormone (GHRH)-stimulated adenosine 3'5'-monophosphate and growth hormone release from rat anterior pituitary cells. [Masters Thesis]. University of Alberta; 1991. Available from: https://era.library.ualberta.ca/files/sq87bw403

Freie Universität Berlin

11. Dietrich, Anja. The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats.

Degree: 2016, Freie Universität Berlin

URL: https://refubium.fu-berlin.de/handle/fub188/11172

► Introduction: Regulation of renal solute and water transport by the antidiuretic hormone arginine vasopressin (AVP) contributes essentially to extracellular fluid homeostasis. Emerging evidence further suggests… (more)

▼ Introduction: Regulation of renal solute and water transport by the antidiuretic hormone arginine vasopressin (AVP) contributes essentially to extracellular fluid homeostasis. Emerging evidence further suggests that AVP, together with renal hypoxia, contribute to the development of renal disease, but the effects of AVP on renal oxygen levels have not been determined. The hypothesis of the present study was that activation of AVP-signaling reduces medullary oxygen availability and causes activation of hypoxia-inducible gene expression. Methods: Adult AVP-deficient Brattleboro rats (n = 26) and age- matched Sprague Dawley rats (n = 10) were randomized to treatment with the V2 receptor agonist desmopressin (dDAVP, 5 ng/h for 3 d) or its vehicle via osmotic minipump. Blood pressure was measured in a subset of Brattleboro rats using tail plethysmography (n = 5 for dDAVP and vehicle treatment, respectively). Brattleboro and Sprague Dawley rats for morphological studies (n = 5 per rat strain and treatment) received an intraperitoneal injection of pimonidazole (60 mg/kg) 30 min before perfusion fixation on day 3. Hypoxic areas of the kidney were identified by immunostaining for pimonidazole or the hypoxia-inducible transcription factor-1α (HIF-1α). Regulation of established HIF-target genes was studied by Affymetrix microarray analysis (n = 3 per group). Results: Treatment of Brattleboro rats with dDAVP caused a significant reduction of urine output (24 ± 8 ml/7 h for dDAVP- vs. 68 ± 37 ml/7 h for vehicle-treated animals; p < 0.05) and a concomitant increase in urine osmolality (853 ± 257 mOsm/kg for dDAVP- vs. 382 ± 303 mOsm/kg for vehicle- treated animals; p < 0.05). Blood pressure was elevated at d3 (134 ± 11 mm Hg for dDAVP- vs. 119 ± 6 mm Hg for vehicle-treated animals; p < 0.05). Staining for pimonidazole and HIF-1α was detected in the medulla of dDAVP-treated Brattleboro and Sprague Dawley rats whereas staining in the respective control animals was weak or absent. Gene expression analysis revealed significant enrichment of known HIF-target genes in dDAVP-treated Brattleboro rats (p = 2.6*10-21). Regulated products included insulin-like growth factor binding proteins 1 and 3, angiopoietin 2, fibronectin, cathepsin D, hexokinase 2 and cyclooxygenase 2. Conclusion: Chronic activation of the renal urine concentrating mechanism by AVP causes a marked decline of medullary oxygen levels and an upregulation of hypoxia-inducible gene expression. These findings provide a mechanistic link between AVP-mediated antidiuresis and hypoxia-induced kidney damage and establish AVP as a permissive factor during the development of renal disease. Advisors/Committee Members: w (gender), N.N. (firstReferee), N.N. (furtherReferee).

Subjects/Keywords: antidiuretic hormone; vasopressin; hypoxia-inducible factor; gene expression analysis; urine concentration; 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

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APA (6^th Edition):

Dietrich, A. (2016). The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats. (Thesis). Freie Universität Berlin. Retrieved from https://refubium.fu-berlin.de/handle/fub188/11172

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):

Dietrich, Anja. “The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats.” 2016. Thesis, Freie Universität Berlin. Accessed March 02, 2021. https://refubium.fu-berlin.de/handle/fub188/11172.

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

MLA Handbook (7^th Edition):

Dietrich, Anja. “The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats.” 2016. Web. 02 Mar 2021.

Vancouver:

Dietrich A. The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats. [Internet] [Thesis]. Freie Universität Berlin; 2016. [cited 2021 Mar 02]. Available from: https://refubium.fu-berlin.de/handle/fub188/11172.

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

Council of Science Editors:

Dietrich A. The influence of the antidiuretic hormone arginine vasopressin on the medullary gene expression in Brattleboro rats. [Thesis]. Freie Universität Berlin; 2016. Available from: https://refubium.fu-berlin.de/handle/fub188/11172

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

University of Southern California

12. Sheikhhassani, Ramtin. Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space.

Degree: PhD, Mechanical Engineering, 2015, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/558014/rec/5698

► The scattering of a plane harmonic SH-wave by an arbitrary number of layered inclusions in a half-space is investigated bya direct boundary integral equation method.… (more)

Subjects/Keywords: multiple scattering; dynamic stress concentration factor; wave propagation; layered inclusions; elastic waves; anti-plane strain; non-hypersingular boundary element method

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APA (6^th Edition):

Sheikhhassani, R. (2015). Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/558014/rec/5698

Chicago Manual of Style (16^th Edition):

Sheikhhassani, Ramtin. “Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space.” 2015. Doctoral Dissertation, University of Southern California. Accessed March 02, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/558014/rec/5698.

MLA Handbook (7^th Edition):

Sheikhhassani, Ramtin. “Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space.” 2015. Web. 02 Mar 2021.

Vancouver:

Sheikhhassani R. Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space. [Internet] [Doctoral dissertation]. University of Southern California; 2015. [cited 2021 Mar 02]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/558014/rec/5698.

Council of Science Editors:

Sheikhhassani R. Scattering of a plane harmonic SH-wave and dynamic stress concentration for multiple multilayered inclusions embedded in an elastic half-space. [Doctoral Dissertation]. University of Southern California; 2015. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/558014/rec/5698

Cranfield University

13. Lozano Minguez, Estivaliz. Fatigue and fracture mechanics of offshore wind turbine support structures.

Degree: PhD, 2015, Cranfield University

URL: http://dspace.lib.cranfield.ac.uk/handle/1826/9756 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681453

► Wind power, especially offshore, is considered to be one of the most promising sources of ‘clean’ energy towards meeting the EU targets for 2020 and… (more)

Subjects/Keywords: 621.406; Tubular joint; Offshore wind support; Stress concentration factor; Stress intensity factor; S-N curve; Semi-elliptical crack; Tubular joint weld profile

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APA (6^th Edition):

Lozano Minguez, E. (2015). Fatigue and fracture mechanics of offshore wind turbine support structures. (Doctoral Dissertation). Cranfield University. Retrieved from http://dspace.lib.cranfield.ac.uk/handle/1826/9756 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681453

Chicago Manual of Style (16^th Edition):

Lozano Minguez, Estivaliz. “Fatigue and fracture mechanics of offshore wind turbine support structures.” 2015. Doctoral Dissertation, Cranfield University. Accessed March 02, 2021. http://dspace.lib.cranfield.ac.uk/handle/1826/9756 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681453.

MLA Handbook (7^th Edition):

Lozano Minguez, Estivaliz. “Fatigue and fracture mechanics of offshore wind turbine support structures.” 2015. Web. 02 Mar 2021.

Vancouver:

Lozano Minguez E. Fatigue and fracture mechanics of offshore wind turbine support structures. [Internet] [Doctoral dissertation]. Cranfield University; 2015. [cited 2021 Mar 02]. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/9756 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681453.

Council of Science Editors:

Lozano Minguez E. Fatigue and fracture mechanics of offshore wind turbine support structures. [Doctoral Dissertation]. Cranfield University; 2015. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/9756 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681453

Queensland University of Technology

14. Juwono, Alamsyah Mohammad. Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane.

Degree: 2014, Queensland University of Technology

URL: https://eprints.qut.edu.au/79190/

► This research measured particle and gaseous emissions from ships and trains operating within the Port of Brisbane, and explored their influence on ambient air composition… (more)

Subjects/Keywords: ship emission; ultrafine particle (UFP); PM2.5, SO2, CO2, NOx; emission factor; size distribution; particle number concentration (PNC); train emission; vanadium, nickel, chlorine, sulfur; tracer

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APA (6^th Edition):

Juwono, A. M. (2014). Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/79190/

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):

Juwono, Alamsyah Mohammad. “Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane.” 2014. Thesis, Queensland University of Technology. Accessed March 02, 2021. https://eprints.qut.edu.au/79190/.

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

MLA Handbook (7^th Edition):

Juwono, Alamsyah Mohammad. “Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane.” 2014. Web. 02 Mar 2021.

Vancouver:

Juwono AM. Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane. [Internet] [Thesis]. Queensland University of Technology; 2014. [cited 2021 Mar 02]. Available from: https://eprints.qut.edu.au/79190/.

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

Council of Science Editors:

Juwono AM. Investigations of ultrafine particles emitted by ships and other transport modes in the port of Brisbane. [Thesis]. Queensland University of Technology; 2014. Available from: https://eprints.qut.edu.au/79190/

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

Delft University of Technology

15. Romeijn, A. Stress and strain concentration factors of welded multiplanar tubular joints.

Degree: 1994, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6

Subjects/Keywords: welded tubular joint; fatigue; hot spot stress; stress (strain) concentration factor

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APA (6^th Edition):

Romeijn, A. (1994). Stress and strain concentration factors of welded multiplanar tubular joints. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6

Chicago Manual of Style (16^th Edition):

Romeijn, A. “Stress and strain concentration factors of welded multiplanar tubular joints.” 1994. Doctoral Dissertation, Delft University of Technology. Accessed March 02, 2021. http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6.

MLA Handbook (7^th Edition):

Romeijn, A. “Stress and strain concentration factors of welded multiplanar tubular joints.” 1994. Web. 02 Mar 2021.

Vancouver:

Romeijn A. Stress and strain concentration factors of welded multiplanar tubular joints. [Internet] [Doctoral dissertation]. Delft University of Technology; 1994. [cited 2021 Mar 02]. Available from: http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6.

Council of Science Editors:

Romeijn A. Stress and strain concentration factors of welded multiplanar tubular joints. [Doctoral Dissertation]. Delft University of Technology; 1994. Available from: http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; urn:NBN:nl:ui:24-uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6 ; http://resolver.tudelft.nl/uuid:1b19d6b1-e8ea-44fc-a279-09074c0e06b6

16. Ulrich, Christine. Comparative hypoxia responses and oxygen sensing in galaxiid fishes .

Degree: 2017, University of Waikato

URL: http://hdl.handle.net/10289/11575

► Aquatic ecosystems are inherently characterised by limited oxygen availability and fluctuations in dissolved oxygen concentration, and therefore, environmental hypoxia (i.e. low oxygen conditions) is common.… (more)

▼ Aquatic ecosystems are inherently characterised by limited oxygen availability and fluctuations in dissolved oxygen concentration, and therefore, environmental hypoxia (i.e. low oxygen conditions) is common. However, in recent decades, the frequency and global expansion of hypoxic environments have increased significantly, owing to intensified anthropogenic impacts on the natural environment. Fish depend on environmental oxygen for oxidative metabolism. In the absence of oxygen, alternative anaerobic mechanisms are in place to maintain energy metabolism. Efficiency and productivity of anaerobic metabolism are, however, comparatively low and may become rapidly insufficient in light of high physiological and metabolic oxygen demand. Correspondingly, substrates used in the oxygen-independent metabolism often are limited, and are converted into metabolites detrimental for the organism. When anaerobic mechanisms fail to meet the energy demand and lethal levels of anaerobic by-products have accumulated, hypoxic death is initiated. In this context, a variety of adaptive hypoxia-response strategies and hypoxia-sensitivities are established in fish, in dependence on species-specific oxygen demand and life strategies, thereby potentially creating very specific environmental niches occupied by distinct species. Accordingly, fish may demonstrate distinct habitat requirements and preferences in relation to the oxygen environment, potentially reflecting species-specific hypoxia sensitivities and response capacities, that may ultimately initiate adaptive radiation. In this context, a range of studies has been undertaken previously in a variety of species, however these are difficult to evaluate in a comparative context due to pronounced taxonomic differences between study species. New Zealand’s galaxiids, however, include species which occupy a wide range of environments. They are closely related and may demonstrate adaptive radiation to particular environments. The three related galaxiid species inanga (Galaxias maculatus), banded kokopu (Galaxias fasciatus) and black mudfish (Neochanna diversus) demonstrate minimised phylogenetic distances, yet exhibit specialised habitat requirements with distinctly different oxygen environments. Thus, it was the overarching goal of this research to establish whether these differences are based upon species-specific oxygen sensitivities and unique hypoxia response strategies and mechanisms, by utilising a novel, comparative combination of behavioural, physiological, molecular and gill morphological studies. To study whether the three closely related galaxiid species exhibit unique behavioural responses upon encountering a hypoxic environment, the ability to sense progressive hypoxia, as well as behavioural responses and hypoxia avoidance thresholds were investigated in a hypoxia-normoxia choice chamber. Inanga demonstrated avoidance of mild hypoxia (< 5.9 mg L-1) and increased the frequency of visits into both the hypoxic and normoxic sides of the choice chamber in severe hypoxia (at… Advisors/Committee Members: Ling, Nicholas (advisor), Hicks, Brendan J (advisor), Olszewski, Pawel K (advisor).

Subjects/Keywords: Hypoxia; Behaviour; Avoidance; Oxygen consumption; Respirometry; Critical oxygen concentration; Oxygen sensing; Neuroepithelial cell; NEC; Hypoxia-inducible factor 1; HIF-1a; Gill morphology; Swimming speed; Galaxiids; thesis with publication

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APA (6^th Edition):

Ulrich, C. (2017). Comparative hypoxia responses and oxygen sensing in galaxiid fishes . (Doctoral Dissertation). University of Waikato. Retrieved from http://hdl.handle.net/10289/11575

Chicago Manual of Style (16^th Edition):

Ulrich, Christine. “Comparative hypoxia responses and oxygen sensing in galaxiid fishes .” 2017. Doctoral Dissertation, University of Waikato. Accessed March 02, 2021. http://hdl.handle.net/10289/11575.

MLA Handbook (7^th Edition):

Ulrich, Christine. “Comparative hypoxia responses and oxygen sensing in galaxiid fishes .” 2017. Web. 02 Mar 2021.

Vancouver:

Ulrich C. Comparative hypoxia responses and oxygen sensing in galaxiid fishes . [Internet] [Doctoral dissertation]. University of Waikato; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10289/11575.

Council of Science Editors:

Ulrich C. Comparative hypoxia responses and oxygen sensing in galaxiid fishes . [Doctoral Dissertation]. University of Waikato; 2017. Available from: http://hdl.handle.net/10289/11575

University of Lund

17. Fröling, Maria. Strength Design Methods for Glass Structures.

Degree: 2013, University of Lund

URL: https://lup.lub.lu.se/record/4076154 ; https://portal.research.lu.se/ws/files/3905499/4076692.pdf

► In this thesis, user friendly and efficient methods for the design of glass structures are developed. The glass structures comprise various boundary conditions. Several types… (more)

▼ In this thesis, user friendly and efficient methods for the design of glass structures are developed. The glass structures comprise various boundary conditions. Several types of glass are considered: single layered glass as well as laminated and insulated glass units. Typical load cases for strength design of glass are applied. A recently developed finite element is suggested to be suitable for the modeling of laminated glass structures. It is shown that the new finite element is superior to standard solid elements for modeling of laminated glass. The results show that the element provides excellent capabilities for modeling of complex laminated glass structures with several bolted or adhesive joints. The new element is utilized in the development of a method to compute stress concentration factors for laminated glass balustrades with two horizontal rows with two bolt fixings. The stress concentration factors are represented graphically in design charts. The use of the design charts allow the maximum principal stresses of the balustrade to be determined without using finite element analysis or advanced mathematics. The shear-capacity of adhesive glass-joints is tested in a short-term load-case. Commonly used stiff and soft adhesives are considered. Finite element models of the test are developed to determine the material models of the adhesives. The material models are verified through large-scale tests. For the stiff adhesives and the main part of the soft adhesives, the material models are experimentally validated for both small-scale and large-scale tests. For a group of the soft adhesives, further research is necessary to validate the material models for a large-scale joint. A reduced model for determining the maximum principal stresses of a glass subjected to dynamic impact load is developed and validated. The developed model is general in the sense that it is applicable to arbitrary location of the impact as well as to structures of arbitrary boundary condition. The validation is made for a four-sided supported glass pane and centric applied impact as well as excentric applied impact. It is shown that the model is applicable to small and medium sized structures. Finally it is proven that the model performs very well for a laminated glass balustrade of standard dimensions and with clamped fixings. Finally, insulated glass subjected to soft body impact is analyzed be means of structureacoustic analysis. A parametric study is made with respect to in-plane dimensions, glass thickness and thickness of the gas layer. For quadratic panes, a larger glass has a larger center displacement but lower stresses than a smaller glass. A single layered glass is proven to have only marginally greater stresses than the corresponding double glass. The air layer thickness has almost no influence on the stresses of the insulated glass but the thickness of the glass has a large influence. Finally, there is almost nothing to be gained to add a third glass pane to the insulated unit.

Subjects/Keywords: Applied Mechanics; finite element; computational techniques; laminated glass; stress concentration factor; design chart; bolt fixing; adhesive joint; balustrade; shear-capacity; dynamic impulse load; insulated glass

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APA (6^th Edition):

Fröling, M. (2013). Strength Design Methods for Glass Structures. (Doctoral Dissertation). University of Lund. Retrieved from https://lup.lub.lu.se/record/4076154 ; https://portal.research.lu.se/ws/files/3905499/4076692.pdf

Chicago Manual of Style (16^th Edition):

Fröling, Maria. “Strength Design Methods for Glass Structures.” 2013. Doctoral Dissertation, University of Lund. Accessed March 02, 2021. https://lup.lub.lu.se/record/4076154 ; https://portal.research.lu.se/ws/files/3905499/4076692.pdf.

MLA Handbook (7^th Edition):

Fröling, Maria. “Strength Design Methods for Glass Structures.” 2013. Web. 02 Mar 2021.

Vancouver:

Fröling M. Strength Design Methods for Glass Structures. [Internet] [Doctoral dissertation]. University of Lund; 2013. [cited 2021 Mar 02]. Available from: https://lup.lub.lu.se/record/4076154 ; https://portal.research.lu.se/ws/files/3905499/4076692.pdf.

Council of Science Editors:

Fröling M. Strength Design Methods for Glass Structures. [Doctoral Dissertation]. University of Lund; 2013. Available from: https://lup.lub.lu.se/record/4076154 ; https://portal.research.lu.se/ws/files/3905499/4076692.pdf

Brno University of Technology

18. Kolláriková, Simona. Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/179588

► The bachelor thesis deals with analyzing stress concentration factor for steel plates with circular holes subjected to different types of loading. Finite element analyses of… (more)

Subjects/Keywords: súčiniteľ koncentrácie napätia; oceľový plech; kruhový otvor; jednoosový ťah; dvojosový ťah; ohyb; ANSYS; stress concentration factor; steel plate; circular hole; uniaxial tension; biaxial tension; bending; ANSYS

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APA (6^th Edition):

Kolláriková, S. (2019). Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/179588

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):

Kolláriková, Simona. “Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes.” 2019. Thesis, Brno University of Technology. Accessed March 02, 2021. http://hdl.handle.net/11012/179588.

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

MLA Handbook (7^th Edition):

Kolláriková, Simona. “Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes.” 2019. Web. 02 Mar 2021.

Vancouver:

Kolláriková S. Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11012/179588.

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

Council of Science Editors:

Kolláriková S. Statická analýza ocelových plechů s dírami: Static Analysis of Steel Plates with Holes. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/179588

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

Brno University of Technology

19. Ševčík, Martin. Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/3829

► This diploma thesis deals with computation modeling of spur gearing using FEM. The methodology of checking calculation was suggested for gears which are not possible… (more)

Subjects/Keywords: ozubení; lomová mechanika; MKP; koncentrátor napětí; součinitel intenzity napětí; T-napětí; gear; fracture mechanics; FEM; stress concentration; stress intensity factor; T-stress

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APA (6^th Edition):

Ševčík, M. (2019). Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/3829

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):

Ševčík, Martin. “Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM.” 2019. Thesis, Brno University of Technology. Accessed March 02, 2021. http://hdl.handle.net/11012/3829.

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

MLA Handbook (7^th Edition):

Ševčík, Martin. “Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM.” 2019. Web. 02 Mar 2021.

Vancouver:

Ševčík M. Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11012/3829.

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

Council of Science Editors:

Ševčík M. Výpočtové modelování deformačně-napěťových stavů čelního soukolí pomocí MKP: Computational modelling of strain and stress in spur gearing using FEM. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/3829

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

University of Arizona

20. Stewart, Dave. Development of Basin Factor Methodology for the Pima County Hydrology Procedures .

Degree: 2008, University of Arizona

URL: http://hdl.handle.net/10150/193328

► The basin factor is a hydrologic parameter that represents the overall impedance to flow of a watershed in the PC-Hydro peak discharge model for small… (more)

Subjects/Keywords: basin factor; peak discharge; hydrologic roughness; time of concentration; hydraulic roughness

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APA (6^th Edition):

Stewart, D. (2008). Development of Basin Factor Methodology for the Pima County Hydrology Procedures . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/193328

Chicago Manual of Style (16^th Edition):

Stewart, Dave. “Development of Basin Factor Methodology for the Pima County Hydrology Procedures .” 2008. Masters Thesis, University of Arizona. Accessed March 02, 2021. http://hdl.handle.net/10150/193328.

MLA Handbook (7^th Edition):

Stewart, Dave. “Development of Basin Factor Methodology for the Pima County Hydrology Procedures .” 2008. Web. 02 Mar 2021.

Vancouver:

Stewart D. Development of Basin Factor Methodology for the Pima County Hydrology Procedures . [Internet] [Masters thesis]. University of Arizona; 2008. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10150/193328.

Council of Science Editors:

Stewart D. Development of Basin Factor Methodology for the Pima County Hydrology Procedures . [Masters Thesis]. University of Arizona; 2008. Available from: http://hdl.handle.net/10150/193328

University of Central Florida

21. Kraft, Steven. The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh.

Degree: 2013, University of Central Florida

URL: https://stars.library.ucf.edu/etd/2552

► Woven structures are steadily emerging as excellent reinforcing components in dualphase composite materials subjected to multiaxial loads, thermal shock, and aggressive reactants in the environment.… (more)

▼ Woven structures are steadily emerging as excellent reinforcing components in dualphase composite materials subjected to multiaxial loads, thermal shock, and aggressive reactants in the environment. Metallic woven wire mesh materials display good ductility and relatively high specific strength and specific resilience. While use of this class of materials is rapidly expanding, significant gaps in mechanical behavior classification remain. This thesis works to address the mechanics of material knowledge gap that exists for characterizing the behavior of a metallic woven structure, composed of stainless steel wires on the order of 25 microns in diameter, and subjected to various loading conditions and stress risers. Uniaxial and biaxial tensile experiments, employing Digital Image Correlation (DIC) as a strain measurement tool, are conducted on woven wire mesh specimens incised in various material orientations, and with various notch geometries. Experimental results, supported by an ample analytic modeling effort, indicate that an orthotropic elastic constitutive model is reasonably capable of governing the macro-scale elasticity of the subject material. Also, the Stress Concentration Factor (SCF) associated with various notch geometries is documented experimentally and analytically, and it is shown that the degree of stress concentration is dependent on both notch and material orientation. The Finite Element Method (FEM) is employed on the macro-scale to expand the experimental test matrix, and to judge the effects of a homogenization assumption when modeling metallic woven structures. Additionally, plasticity of the stainless steel woven wire mesh is considered through experimental determination of the yield surface, and a thorough analytic modeling effort resulting in a modified form of the Hill yield criterion. Finally, mesoscale plasticity of the woven structure is considered, and the form of a multi-scale failure criterion is proposed and exercised numerically. Advisors/Committee Members: Gordon, Ali.

Subjects/Keywords: Stress concentration factor; hill yield criterion; finite element modeling; woven wire mesh; Engineering; Mechanical Engineering; Dissertations, Academic – Engineering and Computer Science, Engineering and Computer Science – Dissertations, Academic

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APA (6^th Edition):

Kraft, S. (2013). The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh. (Masters Thesis). University of Central Florida. Retrieved from https://stars.library.ucf.edu/etd/2552

Chicago Manual of Style (16^th Edition):

Kraft, Steven. “The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh.” 2013. Masters Thesis, University of Central Florida. Accessed March 02, 2021. https://stars.library.ucf.edu/etd/2552.

MLA Handbook (7^th Edition):

Kraft, Steven. “The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh.” 2013. Web. 02 Mar 2021.

Vancouver:

Kraft S. The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh. [Internet] [Masters thesis]. University of Central Florida; 2013. [cited 2021 Mar 02]. Available from: https://stars.library.ucf.edu/etd/2552.

Council of Science Editors:

Kraft S. The Characterization Of The Effects Of Stress Concentrations On The Mechanical Behavior Of A Micronic Woven Wire Mesh. [Masters Thesis]. University of Central Florida; 2013. Available from: https://stars.library.ucf.edu/etd/2552

Swedish University of Agricultural Sciences

22. Bengtsson, Stefan B. Interception and storage of wet deposited radionuclides in crops.

Degree: 2013, Swedish University of Agricultural Sciences

URL: http://pub.epsilon.slu.se/10855/

► The emission of radionuclides into the atmosphere from various sources, such as nuclear power plant accidents and nuclear bomb explosions, can result in the interception… (more)

▼ The emission of radionuclides into the atmosphere from various sources, such as nuclear power plant accidents and nuclear bomb explosions, can result in the interception and uptake of radionuclides by crops in the agricultural ecosystem. These radionuclides e.g. radiocaesium (¹³⁴, ¹³⁷Cs) and radiostrontium (⁸⁵, 90Sr), can be transferred to foodstuffs via seeds or animal feed. Therefore, in this thesis, the goal was to study the amount of ¹³⁴Cs and ⁸⁵Sr that have been intercepted, taken-up and redistributed to different plant parts during wet deposition at different growth stages of spring oilseed rape, spring wheat and ley. For spring oilseed rape and spring wheat, the focus was on the transfer to the seeds after wet deposition of ¹³⁴Cs and ⁸⁵Sr. The dependence between the interception of radionuclides and the growth stage, e.g. the total standing plant biomass and the leaf area index (LAI) were also studied. There was a positive correlation between the interception of ¹³⁴Cs and ⁸⁵Sr and LAI for all three crops. A positive correlation between the standing plant interception and the biomass of ¹³⁴Cs and ⁸⁵Sr was found for spring wheat and ley, but not for spring oilseed rape. The highest interceptions of ¹³⁴Cs and ⁸⁵Sr were at shooting for spring oilseed rape, and at maturity for spring wheat. For ley, the highest interception was at the well-developed stages. Accumulation of ¹³⁴Cs and ⁸⁵Sr in the different plant parts increased when deposition was close to harvest and the crops accumulated more ¹³⁴Cs than ⁸⁵Sr. The concentration of ⁸⁵Sr was lower in spring oilseed rape than in wheat grains. There was an indication that the distribution of radionuclides between the above ground plant parts was independent of the way that they entered into the plant after deposition of ¹³⁴Cs and ⁸⁵Sr. The variation in transfer factors found in this thesis in comparison with results from other studies suggest, that the estimate of the risk of possible uptake to crops in the event of future deposition during the growing season, is still subject to uncertainties.

Subjects/Keywords: food crops; brassica napus; triticum aestivum; plant developmental stages; biomass; caesium; strontium; radioisotopes; absorption; bioaccumulation; chemical composition; laboratory experimentation; models; concentration; radionuclide; transfer factor; translocation factor; deposition; food crops; biomass; leaf area index; growth stage

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

APA (6^th Edition):

Bengtsson, S. B. (2013). Interception and storage of wet deposited radionuclides in crops. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from http://pub.epsilon.slu.se/10855/

Chicago Manual of Style (16^th Edition):

Bengtsson, Stefan B. “Interception and storage of wet deposited radionuclides in crops.” 2013. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed March 02, 2021. http://pub.epsilon.slu.se/10855/.

MLA Handbook (7^th Edition):

Bengtsson, Stefan B. “Interception and storage of wet deposited radionuclides in crops.” 2013. Web. 02 Mar 2021.

Vancouver:

Bengtsson SB. Interception and storage of wet deposited radionuclides in crops. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2013. [cited 2021 Mar 02]. Available from: http://pub.epsilon.slu.se/10855/.

Council of Science Editors:

Bengtsson SB. Interception and storage of wet deposited radionuclides in crops. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2013. Available from: http://pub.epsilon.slu.se/10855/

23. Wei, Changjian. Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials.

Degree: MSin Engineering, Mechanical Engineering, College of Engineering and Computer Science, 2017, University of Michigan

URL: http://hdl.handle.net/2027.42/136627

► Spot-welded joints are widely employed in the construction of vehicle structures. Recently, due to the strategies for minimizing the fuel consumption and vehicle emissions, more… (more)

Subjects/Keywords: Spot-welded joint; Structural stress; Notch stress; Stress concentration factor; Stress intensity factor; Mechanical Engineering

…considering the structural stress concentration factor SCF due to the notch effect of weld toe. The… …parameters. Stress intensity factors SIFs and stress concentration factors are introduced to solve… …diameter exponent, thickness exponent and scaling factor for three parts of structural stress… …spot-welded joints. The stress intensity approach uses the stress intensity factor at the… …crack propagation analysis. The maximum value of the cyclic equivalent stress intensity factor…

11 more images…

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APA (6^th Edition):

Wei, C. (2017). Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials. (Masters Thesis). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/136627

Chicago Manual of Style (16^th Edition):

Wei, Changjian. “Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials.” 2017. Masters Thesis, University of Michigan. Accessed March 02, 2021. http://hdl.handle.net/2027.42/136627.

MLA Handbook (7^th Edition):

Wei, Changjian. “Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials.” 2017. Web. 02 Mar 2021.

Vancouver:

Wei C. Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials. [Internet] [Masters thesis]. University of Michigan; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2027.42/136627.

Council of Science Editors:

Wei C. Development of Fatigue Life Prediction Method for Spot-Welded Joints of Mixed Materials. [Masters Thesis]. University of Michigan; 2017. Available from: http://hdl.handle.net/2027.42/136627

24. SHEN WEI. Behaviour Of Grout Infilled Steel Tubular Members And Joints.

Degree: 2010, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/20901

Subjects/Keywords: tubular member; tubular joint; local buckling; stress concentration factor; stress intensity factor; ultimate strength; fatigue life

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

APA (6^th Edition):

WEI, S. (2010). Behaviour Of Grout Infilled Steel Tubular Members And Joints. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/20901

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):

WEI, SHEN. “Behaviour Of Grout Infilled Steel Tubular Members And Joints.” 2010. Thesis, National University of Singapore. Accessed March 02, 2021. http://scholarbank.nus.edu.sg/handle/10635/20901.

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

MLA Handbook (7^th Edition):

WEI, SHEN. “Behaviour Of Grout Infilled Steel Tubular Members And Joints.” 2010. Web. 02 Mar 2021.

Vancouver:

WEI S. Behaviour Of Grout Infilled Steel Tubular Members And Joints. [Internet] [Thesis]. National University of Singapore; 2010. [cited 2021 Mar 02]. Available from: http://scholarbank.nus.edu.sg/handle/10635/20901.

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

Council of Science Editors:

WEI S. Behaviour Of Grout Infilled Steel Tubular Members And Joints. [Thesis]. National University of Singapore; 2010. Available from: http://scholarbank.nus.edu.sg/handle/10635/20901

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

Delft University of Technology

25. van Helvoort, Derron (author). The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:a659e44d-44b0-4871-8f24-2a4f64cf322e

►

Additive manufacturing allows material structuring, supporting the fabrication of multiple-level structures or metamaterials. Through the lens of classical stress reduction, nature’s cellular solid structures feature… (more)

Subjects/Keywords: Additive Manufacturing; additive manufacturing; 3D Printing; 3D printing; Bio-inspired; Honeycomb structure; Experimental study; quasi static; Quasi-static; Compression; Lightweight; lightweight; lightweight sructure; Topology study; cellular solid; cellular solid node; lattice; lattice node; avian bone; Delft University of Technology; Aerospace; aerospace; Mattheck; Baud; Fillet; stress concentration zone; Stress Distribution; stress concentration factor; Digital Image Correlation; DIC; Energy Storage; strain energy

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APA (6^th Edition):

van Helvoort, D. (. (2019). The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a659e44d-44b0-4871-8f24-2a4f64cf322e

Chicago Manual of Style (16^th Edition):

van Helvoort, Derron (author). “The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation.” 2019. Masters Thesis, Delft University of Technology. Accessed March 02, 2021. http://resolver.tudelft.nl/uuid:a659e44d-44b0-4871-8f24-2a4f64cf322e.

MLA Handbook (7^th Edition):

van Helvoort, Derron (author). “The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation.” 2019. Web. 02 Mar 2021.

Vancouver:

van Helvoort D(. The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Mar 02]. Available from: http://resolver.tudelft.nl/uuid:a659e44d-44b0-4871-8f24-2a4f64cf322e.

Council of Science Editors:

van Helvoort D(. The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:a659e44d-44b0-4871-8f24-2a4f64cf322e

Indian Institute of Science

26. Kamadi, V N Surendra. Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points.

Degree: PhD, Faculty of Engineering, 2017, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2709

► Compression fracture specimens are ideally suited for miniaturization down to tens of microns. Fracture testing of thermal barrier coatings, ceramics and glasses are also best… (more)

▼ Compression fracture specimens are ideally suited for miniaturization down to tens of microns. Fracture testing of thermal barrier coatings, ceramics and glasses are also best accomplished under compression or indentation. Compression fracture specimen of finite size with constant form factor was not available in the literature. The finite-sized specimen of edge cracked semicircular disk (ECSD) is designed which has the property of constant form factor. The novel ECSD specimen is explored further using weight function concept. This thesis, therefore, is mainly concerned with the design, development and geometric optimization of compression fracture specimen vis a vis their characterization of form factors, weight functions and isotropic points in the uncracked geometry. Inspired by the Brazilian disk geometry, a novel compression fracture specimen is designed in the form of a semicircular disk with an edge crack which opens up due to the bending moment caused by the compressive load applied along its straight edge. This new design evolved from a set of photoelastic experiments conducted on the Brazilian disk and its two extreme cases. Surprisingly, normalized mode-I stress intensity factor of the semicircular specimen loaded under a particular Hertzian way, is found constant for a wide range of relative crack lengths. This property of constant form factor leads to the development of weight function for ECSD for deeper analysis of the specimen. The weight function of a cracked geometry does not depend on loading configuration and it relates stress intensity factor to the stress distribution in the corresponding uncracked geometry through a weighted integral. The weight function for the disk specimen is synthesized in two different ways: using the conventional approach which requires crack opening displacement and the dual form factor method which is newly developed. Since stress distribution in the uncracked specimen is required in order to use weight function concept, analytical solution is attempted using linear elasticity theory. Since closed form solution for stresses in the uncracked semicircular disk is seldom possible with the available techniques, a new semi-analytical method called partial boundary collocation (PBC), is developed which may be used for solving any 2-D elasticity problem involving a semi-geometry. In the new method, part of the boundary conditions are identically satisfied and remaining conditions are satisfied at discrete boundary points. The classical stress concentration factor for a semi-in finite plate with a semicircular edge notch re-derived using PBC is found to be accurate to the eighth decimal. To enhance the form factor in order to test high-toughness materials, edge cracked semicircular ring (ECSR) specimen is designed in which bending moment at the crack-tip is increased significantly due to the ring geometry. ECSR is analyzed using nite element method and the corresponding uncracked problem is analyzed by PBC. Constant form factor is found possible for the ring specimen… Advisors/Committee Members: Simha, K R Y (advisor).

Subjects/Keywords: Photoelastic Isotropic Point; Linear Elastic Fracture Mechanics; Compression Fracture Specimens; Weight Functions; Fracture Mechanics; Isotropic Points; Edge Cracked Semicircular Disk (ECSD); Semicircular Photoelastic Disk; Brazilian Disk; Hertzian Load; Flamant Solution; Stress Intensity Factor (SIF); Stress Concentration Factor (SCF); Photoelastic Pattern Recognition; Photoelastic Digital Image Analysis; Photoelastic IPs; Mechanical Engineering

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

APA (6^th Edition):

Kamadi, V. N. S. (2017). Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2709

Chicago Manual of Style (16^th Edition):

Kamadi, V N Surendra. “Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points.” 2017. Doctoral Dissertation, Indian Institute of Science. Accessed March 02, 2021. http://etd.iisc.ac.in/handle/2005/2709.

MLA Handbook (7^th Edition):

Kamadi, V N Surendra. “Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points.” 2017. Web. 02 Mar 2021.

Vancouver:

Kamadi VNS. Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2017. [cited 2021 Mar 02]. Available from: http://etd.iisc.ac.in/handle/2005/2709.

Council of Science Editors:

Kamadi VNS. Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points. [Doctoral Dissertation]. Indian Institute of Science; 2017. Available from: http://etd.iisc.ac.in/handle/2005/2709

University of Pretoria

27. Mtangi, Wilbert. Electrical characterization of process, annealing and irradiation induced defects in ZnO .

Degree: 2013, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-12132012-162737/

► A study of defects in semiconductors is vital as defects tend to influence device operation by modifying their electrical and optoelectronic properties. This influence can… (more)

▼ A study of defects in semiconductors is vital as defects tend to influence device operation by modifying their electrical and optoelectronic properties. This influence can at times be desirable in the case of fast switching devices and sometimes undesirable as they may reduce the efficiency of optoelectronic devices. ZnO is a wide bandgap material with a potential for fabricating UV light emitting diodes, lasers and white lighting devices only after the realization of reproducible p-type material. The realization of p-type material is greatly affected by doping asymmetry. The self-compensation behaviour by its native defects has hindered the success in obtaining the p-type material. Hence there is need to understand the electronic properties, formation and annealing-out of these defects for controlled material doping. Space charge spectroscopic techniques are powerful tools for studying the electronic properties of electrically active defects in semiconductors since they can reveal information about the defect “signatures”. In this study, novel Schottky contacts with low leakage currents of the order of 10-11 A at 2.0 V, barrier heights of 0.60 – 0.80 eV and low series resistance, fabricated on hydrogen peroxide treated melt-grown single crystal ZnO samples, were demonstrated. Investigations on the dependence of the Schottky contact parameters on fabrication techniques and different metals were performed. Resistive evaporation proved to produce contacts with lower series resistance, higher barrier heights and low reverse currents compared to the electron-beam deposition technique. Deep level transient spectroscopy (DLTS) and Laplace-DLTS have been employed to study the electronic properties of electrically active deep level defects in ZnO. Results revealed the presence of three prominent deep level defects (E1, E2 and E3) in the as-received ZnO samples. Electron-beam deposited contacts indicated the presence of the E1, E2 and E3 and the introduction of new deep level defects. These induced deep levels have been attributed to stray electrons and ionized particles, present in the deposition system during contact fabrication. Exposure of ZnO to high temperatures induces deep level defects. Annealing samples in the 300°C – 600°C temperature range in Ar + O2 induces the E4 deep level with a very high capture cross-section. This deep level transforms at every annealing temperature. Its instability at room temperature has been demonstrated by a change in the peak temperature position with time. This deep level was broad, indicating that it consists of two or more closely spaced energy levels. Laplace-DLTS was successfully employed to resolve the closely spaced energy levels. Annealing samples at 700°C in Ar and O2 anneals-out E4 and induces the Ex deep level defect with an activation enthalpy of approximately 160 – 180 meV. Vacuum annealing performed in the 400°C – 700°C temperature range did not induce any deep level defects. Since the radiation hardness of ZnO is crucial in space applications, 1.6 MeV proton irradiation… Advisors/Committee Members: Dr J M Nel (advisor), Prof F D Auret (advisor).

Subjects/Keywords: Native defects; Schottky barrier height; Series resistance; Ideality factor; Activation enthalpy; Irradiation; Zno; Arrhenius plots; Schottky contacts; Melt grown; Oxygen vacancy; Iv; Cv; Net doping concentration; Capture cross-section; Dlts; Laplace dlts; Deep level defects; Defects; Annealing; UCTD

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

APA (6^th Edition):

Mtangi, W. (2013). Electrical characterization of process, annealing and irradiation induced defects in ZnO . (Doctoral Dissertation). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-12132012-162737/

Chicago Manual of Style (16^th Edition):

Mtangi, Wilbert. “Electrical characterization of process, annealing and irradiation induced defects in ZnO .” 2013. Doctoral Dissertation, University of Pretoria. Accessed March 02, 2021. http://upetd.up.ac.za/thesis/available/etd-12132012-162737/.

MLA Handbook (7^th Edition):

Mtangi, Wilbert. “Electrical characterization of process, annealing and irradiation induced defects in ZnO .” 2013. Web. 02 Mar 2021.

Vancouver:

Mtangi W. Electrical characterization of process, annealing and irradiation induced defects in ZnO . [Internet] [Doctoral dissertation]. University of Pretoria; 2013. [cited 2021 Mar 02]. Available from: http://upetd.up.ac.za/thesis/available/etd-12132012-162737/.

Council of Science Editors:

Mtangi W. Electrical characterization of process, annealing and irradiation induced defects in ZnO . [Doctoral Dissertation]. University of Pretoria; 2013. Available from: http://upetd.up.ac.za/thesis/available/etd-12132012-162737/

28. Cardoso, Ademar de Azevedo. Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas.

Degree: PhD, Engenharia Naval e Oceânica, 1999, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3135/tde-11032004-160112/ ;

►

Neste trabalho está apresentada uma alternativa para o cálculo do fator de concentração de tensões (FCT) em juntas tubulares soldadas do tipo Y. Redes Neurais… (more)

▼

Neste trabalho está apresentada uma alternativa para o cálculo do fator de concentração de tensões (FCT) em juntas tubulares soldadas do tipo Y. Redes Neurais Artificiais (RNA) foram utilizadas para representar a distribuição de tensões ao longo da junta tubular para os casos de carregamento força axial no plano e momento fletor no plano. As RNA podem aprender a partir de um conjunto de dados sem a necessidade de uma expressão matemática entre as variáveis dependentes e independentes; representa uma vantagem sobre o procedimento normalmente utilizado, ou seja, as equações paramétricas. O modelo proposto representa um avanço no projeto de juntas tubulares, uma vez que evita a necessidade de se conhecer uma expressão matemática para representar a distribuição de tensões na junta e fornece um método mais preciso para avaliar a distribuição de tensões ao longo da junta soldada. O conjunto de dados utilizado foi formado a partir de simulações numéricas das juntas soldadas através do MEF, nas quais foi considerada a geometria do cordão de solda.

An alternative approach to calculate stress concentration factors (SCF) in Y-type welded tubular joints is presented. Artificial Neural Networks (ANN) were used to represent the stress distribution along the tubular joints in both in-plane axial force and in-plane bending moment load cases. ANN can learn from a database without establishing a mathematical expression between dependent and independent variables, which is an advantage over the usual parametric equations approach. The proposed model represents an improvement in the tubular joints design, since it avoids the previous knowing of a mathematical expression to represent the stress distribution in the joint and provides an accurate method to evaluate the stress distribution along the welded fillet joint. The database herein used was completed with FE simulations of tubular joints which consider the geometry of the weld fillet.

Advisors/Committee Members: Augusto, Oscar Brito.

Subjects/Keywords: ANN; artificial neural networks; juntas tubulares soldadas; método dos elementos finitos; redes neurais artificiais; SCF; stress concentration factor; tubular joints

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

APA (6^th Edition):

Cardoso, A. d. A. (1999). Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3135/tde-11032004-160112/ ;

Chicago Manual of Style (16^th Edition):

Cardoso, Ademar de Azevedo. “Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas.” 1999. Doctoral Dissertation, University of São Paulo. Accessed March 02, 2021. http://www.teses.usp.br/teses/disponiveis/3/3135/tde-11032004-160112/ ;.

MLA Handbook (7^th Edition):

Cardoso, Ademar de Azevedo. “Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas.” 1999. Web. 02 Mar 2021.

Vancouver:

Cardoso AdA. Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas. [Internet] [Doctoral dissertation]. University of São Paulo; 1999. [cited 2021 Mar 02]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3135/tde-11032004-160112/ ;.

Council of Science Editors:

Cardoso AdA. Redes neurais artificiais na avaliação de concentração de tensões em juntas tubulares soldadas. [Doctoral Dissertation]. University of São Paulo; 1999. Available from: http://www.teses.usp.br/teses/disponiveis/3/3135/tde-11032004-160112/ ;

University of Pretoria

29. Mtangi, Wilbert. Electrical characterization of process, annealing and irradiation induced defects in ZnO.

Degree: Physics, 2013, University of Pretoria

URL: http://hdl.handle.net/2263/30356

► A study of defects in semiconductors is vital as defects tend to influence device operation by modifying their electrical and optoelectronic properties. This influence can… (more)

▼ A study of defects in semiconductors is vital as defects tend to influence device operation by modifying their electrical and optoelectronic properties. This influence can at times be desirable in the case of fast switching devices and sometimes undesirable as they may reduce the efficiency of optoelectronic devices. ZnO is a wide bandgap material with a potential for fabricating UV light emitting diodes, lasers and white lighting devices only after the realization of reproducible p-type material. The realization of p-type material is greatly affected by doping asymmetry. The self-compensation behaviour by its native defects has hindered the success in obtaining the p-type material. Hence there is need to understand the electronic properties, formation and annealing-out of these defects for controlled material doping. Space charge spectroscopic techniques are powerful tools for studying the electronic properties of electrically active defects in semiconductors since they can reveal information about the defect “signatures”. In this study, novel Schottky contacts with low leakage currents of the order of 10-11 A at 2.0 V, barrier heights of 0.60 – 0.80 eV and low series resistance, fabricated on hydrogen peroxide treated melt-grown single crystal ZnO samples, were demonstrated. Investigations on the dependence of the Schottky contact parameters on fabrication techniques and different metals were performed. Resistive evaporation proved to produce contacts with lower series resistance, higher barrier heights and low reverse currents compared to the electron-beam deposition technique. Deep level transient spectroscopy (DLTS) and Laplace-DLTS have been employed to study the electronic properties of electrically active deep level defects in ZnO. Results revealed the presence of three prominent deep level defects (E1, E2 and E3) in the as-received ZnO samples. Electron-beam deposited contacts indicated the presence of the E1, E2 and E3 and the introduction of new deep level defects. These induced deep levels have been attributed to stray electrons and ionized particles, present in the deposition system during contact fabrication. Exposure of ZnO to high temperatures induces deep level defects. Annealing samples in the 300°C – 600°C temperature range in Ar + O2 induces the E4 deep level with a very high capture cross-section. This deep level transforms at every annealing temperature. Its instability at room temperature has been demonstrated by a change in the peak temperature position with time. This deep level was broad, indicating that it consists of two or more closely spaced energy levels. Laplace-DLTS was successfully employed to resolve the closely spaced energy levels. Annealing samples at 700°C in Ar and O2 anneals-out E4 and induces the Ex deep level defect with an activation enthalpy of approximately 160 – 180 meV. Vacuum annealing performed in the 400°C – 700°C temperature range did not induce any deep level defects. Since the radiation hardness of ZnO is crucial in space applications, 1.6 MeV proton irradiation… Advisors/Committee Members: Dr J M Nel (advisor), Prof F D Auret (advisor).

Subjects/Keywords: Native defects; Schottky barrier height; Series resistance; Ideality factor; Activation enthalpy; Irradiation; Zno; Arrhenius plots; Schottky contacts; Melt grown; Oxygen vacancy; Iv; Cv; Net doping concentration; Capture cross-section; Dlts; Laplace dlts; Deep level defects; Defects; Annealing; UCTD

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

APA (6^th Edition):

Mtangi, W. (2013). Electrical characterization of process, annealing and irradiation induced defects in ZnO. (Doctoral Dissertation). University of Pretoria. Retrieved from http://hdl.handle.net/2263/30356

Chicago Manual of Style (16^th Edition):

Mtangi, Wilbert. “Electrical characterization of process, annealing and irradiation induced defects in ZnO.” 2013. Doctoral Dissertation, University of Pretoria. Accessed March 02, 2021. http://hdl.handle.net/2263/30356.

MLA Handbook (7^th Edition):

Mtangi, Wilbert. “Electrical characterization of process, annealing and irradiation induced defects in ZnO.” 2013. Web. 02 Mar 2021.

Vancouver:

Mtangi W. Electrical characterization of process, annealing and irradiation induced defects in ZnO. [Internet] [Doctoral dissertation]. University of Pretoria; 2013. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2263/30356.

Council of Science Editors:

Mtangi W. Electrical characterization of process, annealing and irradiation induced defects in ZnO. [Doctoral Dissertation]. University of Pretoria; 2013. Available from: http://hdl.handle.net/2263/30356

30. Κατερέλος, Διονύσιος. Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης.

Degree: 2004, University of Patras

URL: http://nemertes.lis.upatras.gr/jspui/handle/10889/1442

►

Οι περιοχές συγκέντρωσης τάσης ή/και παραμόρφωσης στα σύνθετα υλικά, όπως και στα συμβατικά -μεταλλικά- υλικά, αποτελούν σημαντικά στοιχεία στο σχεδιασμό τμημάτων δομών και ολόκληρων κατασκευών.… (more)

Subjects/Keywords: Σύνθετα υλικά; Τάση; Παραμόρφωση; Θεωρία θραύσης; Συντελεστής συγκέντρωσης τάσης (ΣΣΤ); 620.118 41; Composite materials; Stress; Strain; Fracture mechanics; Stress concentration factor

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

APA (6^th Edition):

Κατερέλος, �. (2004). Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης. (Doctoral Dissertation). University of Patras. Retrieved from http://nemertes.lis.upatras.gr/jspui/handle/10889/1442

Chicago Manual of Style (16^th Edition):

Κατερέλος, Διονύσιος. “Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης.” 2004. Doctoral Dissertation, University of Patras. Accessed March 02, 2021. http://nemertes.lis.upatras.gr/jspui/handle/10889/1442.

MLA Handbook (7^th Edition):

Κατερέλος, Διονύσιος. “Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης.” 2004. Web. 02 Mar 2021.

Vancouver:

Κατερέλος �. Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης. [Internet] [Doctoral dissertation]. University of Patras; 2004. [cited 2021 Mar 02]. Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/1442.

Council of Science Editors:

Κατερέλος �. Μηχανική συμπεριφορά σε στατική και δυναμική καταπόνηση σύνθετων υλικών με παρουσία συγκέντρωσης τάσης. [Doctoral Dissertation]. University of Patras; 2004. Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/1442

Open Access Theses and Dissertations