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Measurements of the Mössbauer Fraction in ChromiumBrace, B. Frederick, Jr. 30 August 1972 (has links)
Precision measurements of the Mossbauer fraction of Fe57 in chromium were made using the black absorber technique over a range of temperatures from 78K to 792K. Because of uncertainty in corrections at high temperatures, only the data collected from 78K to 600K was used in analyzing the results.
The f values were analyzed in terms of a Debye approximmation. This analysis of the data yielded a theoretical fit which was based on two adjustable parameters (a Debye temperature of 438K and an anharmonicity parameter of 2 x 10-4K-1).
The f measurements were also analyzed using a theory proposed by Mannheim in 1968. Two different phonon density of states functions (Feldman, Muhlestein) were applied to Mannheim’s theory, and the resulting theoretical fits to experimental values showed a decrease in the force constant as a result of introducing an impurity into the chromium. Feldman’s phonon spectrum yielded a force constant ratio of 1.30±.07 and an anharmoncity parameter of ℇ=2.5(±.5) x 10-4K-1.
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Effects of dietary fat and carbohydrate on weight gain and serum lipids in ratsSaldanha, Leila Genevieve January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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A Comparison of Ambient and Hearing Aid Output Noise Levels in Industrial and Non-industrial SettingsO'Connor, Jody Lynn 06 June 1993 (has links)
Federal regulations specify that an employee working for eight hours cannot legally be exposed to noise which has a time-weighted average greater than 90 decibels on the A scale. The industrial workforce is comprised of not only people with normal hearing acuity, but of individuals who suffer from hearing loss. While current noise regulation standards are deemed appropriate for those with normal hearing, it is difficult to apply these standards to persons wearing hearing aids on the job. The ambient, or unamplified, noise levels that fall below the maximum permitted by OSHA standards may very well be amplified to levels greater than 90 dBA, by the hearing aid. If this were the case, the company employing the hearing aid user would technically be in violation of the OSHA regulations. This study addressed the question of what noise exposure might be expected for hearing aid users on the job in different situations, as well as in non-vocational settings. The research involved two methods, conducted to determine the noise levels created by hearing aids with different amounts of gain and to determine whether the amplified noise levels exceed those requiring intervention under current regulations. For both methods, ambient and amplified noise levels for each condition were gathered in specified increments, and were compared with regard to current regulatory standards. The resultant data revealed that when ambient noise levels average between 80 and 84 dBA, amplification provided by even a mild gain hearing aid caused the eight hour time-weighted averages (TWA's) to increase to levels above the 90 dBA maximum permissible levels as delineated by OSHA. Moderate and high gain aids further increased these levels. The results of this study suggest that the hearing aid users in industrial and perhaps non-industrial settings may very well be exposed to intensity levels which exceed OSHA maximums, even when ambient levels do not. The extent to which these arc exceeded are based on the gain and output of the hearing aid in use.
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An application of adaptive complex predictionBlasi, Wayne Michael January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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Composition and characteristics of coated broiler partsProctor, V. A January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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High moisture corn with additives for cattle finishing dietsYoung, Bruce D January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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Effektmätning av ett utbildningsprogram : Genom lärande utvärderingHalt, Lotta January 2011 (has links)
Abstract Titel Effektmätning av ett utbildningsprogram – genom lärande utvärdering Engelsk titel Effect Measurement of a Training Program – through Learning by Evaluating Handledare Lars Holmstrand Examinator Magnus Söderström Datum Juni 2011 Antal sidor 77 Nyckelord utvärdering, lärande, effektmätning, lärande utvärdering, formativ utvärdering Keywords evaluation, learning, effect measurement, learning by evaluating, formative evaluation The aim of this study was to investigate which effects a competence development effort has had on individuals and group, as well as in which way formative elements of evaluation possibly could have contributed to learning. The target group of the study was employees (eleven), their managers (seven) as well as co-ordinators (two) of a maintenance department at a nuclear power plant. The training program lasted from December 2009 to May 2010. The study was in progress as of September 2009 when a decision was made at the maintenance department’s training board to carry out the evaluation. The study is a comprehensive normal evaluation study focusing on learning by evaluation. As development model the Kirkpatrick, D.L & Kirkpatrick, J.D. (2005) ―Four level evaluation model‖ was chosen. The collected input consisted of interviews, documents, notes from meetings, surveys and dialogues. The dialogue situation has mainly taken place between the evaluator, the participants, the manager and others on the subject of the evaluation. The result showed that learning by evaluation may contribute to learning. The prerequisites are that managers are involved in the evaluation process in order to create the prerequisites for a good learning environment. What also is required is that there is a co-operation between the evaluator and the persons involved in the evaluation throughout the whole evaluation process. A prerequisite is also that the result of the evaluation is received and utilized. The driving force for the participants in order to transfer the learning to everyday life was mainly motivation and willingness which appeared in the interviews, but the prerequisites for enabling this to continue to develop is the engagement of the management and the support in the form of a good learning environment. This entails time for reflection and also that the organisation supports the learning process. For the management to gain the understanding of the competence which the training provides and thus to provide the prerequisites for support, it is required that they themselves participate in the training. For the individuals the competence development effort has among others led to results in the form of a strengthened self-confidence, a wider view on maintenance as well as an understanding of other human beings and professions. For the group it is yet too early in order to be able to see any results in a wider perspective. The solution to reach this is that 7 many more must participate in the training before results might be attained. In groups with more than one participant there are however tendencies towards an increase in output within the group. Different activities within the learning by evaluation showed that learning has taken place throughout the whole evaluation process in different ways. Different corrective actions and measures have been carried out continuously in order to attain the best possible learning process. The reviews after the examinations, which were led by some of the managers, gave an excellent example of how learning may take place for different persons involved through co-operation and dialogue. Uncertainties were clarified and taken care of during these meetings. Also a learning process took place concerning the development model itself, as well as its pros and cons. The result also showed the importance of the management’s engagement in order to stimulate the learning.
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Kan företag påvisa en positiv effekt av sin sponsring? : En explorativ studie om hur företag mäter effekten av sin sponsring samt hur sponsring påverkar deras varumärkesimageAhlin, Jenny, Hällerfors, Klara January 2020 (has links)
Att sponsra idrottsorganisationer är ett väletablerat och vanligt förekommande fenomen bland företag. Miljontals kronor pumpas in i olika idrottsorganisationer med syfte att förbättra företags anseende om deras verksamhet samt varumärke. Trots krav på att kunna påvisa hur dessa investeringar påverkar företags verksamhet tyder många studier på en avsaknad av samt okunskap kring effektmätning. Avsikten med denna studie är att söka djupare förståelse kring om och i så fall hur företag mäter effekten av sin sponsring. För att kunna undersöka detta krävs att djupare förståelse skapas kring vilka mål företag, utan idrottskoppling, har till att investera i sponsorsamarbeten med idrottsorganisationer. Slutligen är även avsikten med studien att söka svar på vilket faktiskt utfall företags sponsring får, både gällande varumärkesimage ur konsumentens perspektiv samt om företag kan se en eventuell ekonomisk vinst genom deras sponsorsamarbeten. För att möjliggöra undersökandet av detta baseras studien i huvudsak på en kvalitativ intervjustudie med fyra passande företag, BAUHAUS och Folksam som idag, 2020, är aktiva sponsorer till idrottsorganisationer samt Epson och Ericsson som tidigare sponsrat idrottsorganisationer eller idrottsrelaterade event. Detta kompletteras med en kvantitativ enkätundersökning med de aktiva sponsorföretagens konsumenter för att analysera sponsorsamarbetenas påverkan på varumärket. Enkäten besvarades av 369 respondenter. Fenomenet undersöks med hjälp av följande teorier: Brand Equity, Brand Image Transfer, Return on Investment, Return och Objectives samt SMART-modellen. Resultatet från studien visar att företag har otydligt formulerade mål med sin idrottssponsring vilket medför att en eventuell effektmätning försvåras. Dock kan studiens resultat påvisa att idrottssponsring leder till ett något förbättrat varumärkesanseende. Däremot genererar idrottssponsring inte de positiva utfall som företag tycks förutsätta när sponsorsamarbeten inleds. / To sponsor a sports organization is a well-established and recurring phenomenon amongst corporations. Millions of Swedish kronor are invested in different sport organizations with the purpose to improve corporations business and trademarks. Despite requirements regarding proving an investments impact on corporation’s business operations many studies suggest there is a lack of, and ignorance surrounding effect measurements. The purpose with this study is to seek deeper understanding surrounding how corporations measure the effect of their sponsoring To enable this it is necessary to understand what goals corporations, without a clear connection to sport, have with their investments in sports organizations. The purpose with this study is also to seek answers surrounding which outcome the corporations sponsoring actual has, both regarding their brand image from a consumers perspective as well as weather they can identify an economic benefit with their sponsorship. The study is mainly based on a qualitative interview study with four appropriate corporations, BAUHAUS and Folksam that today, 2020, are active sponsors to sports organizations and Epson and Ericsson that earlier have sponsored sports organizations or sport-related events. This is then supplemented with a quantitative survey with the consumers of the corporations that actively sponsor sports organizations to enable an analysis of the sponsorships impact on their trademark. The survey was completed by a total of 369 respondents. The phenomenon is studied with the help of the following theories: Brand Equity, Brand Image Transfer, Return on Investment, Return on Objectives and the SMART-model. The results of this study show that corporations have vaguely formulated goals regarding their sport sponsorships which entails that potential effect measurements are hampered. However, the result of the study can prove that sport sponsorships do lead to a somewhat improved trademark reputation. On the contrary sport sponsorships do not seem to entail the positive effect corporations seem to presume when initiating a sport sponsorship.
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Numerical simulation of strengthened unreinforced masonry (URM) walls by new retrofitting technologies for blast loading.Su, Yu January 2009 (has links)
Terrorism has become a serious threat in the world, with bomb attacks carried out both inside and outside buildings. There are already many unreinforced masonry buildings in existence, and some of them are historical buildings. However, they do not perform well under blast loading. Aiming on protecting masonry buildings, retrofitting techniques were developed. Some experimental work on studying the effect of retrofitted URM walls has been done in recent years; however, these tests usually cost a significant amount of time and funds. Because of this, numerical simulation has become a good alternative, and can be used to study the behaviour of masonry structures, and predict the outcomes of experimental tests. This project was carried out to find efficient retrofitting technique under blast loading by developing numerical material models. It was based on experimental research of strengthening URM walls by using retrofitting technologies under out-of-plane loading at the University of Adelaide. The numerical models can be applied to study large-scaled structures under static loading, and the research work is then extended to the field of blast loading. Aiming on deriving efficient material models, homogenization technology was introduced to this research. Fifty cases of numerical analysis on masonry basic cell were conducted to derive equivalent orthotropic material properties. To study the increasing capability in strength and ductility of retrofitted URM walls, pull-tests were simulated using interface element model to investigate the bond-slip relationship of FRP plates bonded to masonry blocks. The interface element model was then used to simulate performance of retrofitted URM walls under static loads. The accuracy of the numerical results was verified by comparing with the experimental results from previous tests at the University of Adelaide by Griffith et al. (2007) on unreinforced masonry walls and by Yang (2007) on FRP retrofitted masonry walls. To study the de-bonding behaviours of retrofits bonded to masonry, and find appropriate solution to protect certain masonry walls against blast loading, various retrofitting technologies were examined. The simulation covers explosive impacts of a wide range of impulses. Based on this work, pressure-impulse diagrams for different types of retrofitted URM walls were developed as a design guideline for estimating the blast effect on retrofitted masonry walls. The outcomes of this research will contribute to the development of numerical simulation on modelling retrofitted URM walls, improving the technique for explosion-resistant of masonry buildings, and providing a type of guideline for blast-resistant design. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1349719 / Thesis (M.Eng.Sc.) - University of Adelaide, School of Civil, Environmental and Mining Engineering, 2009
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Numerical simulation of strengthened unreinforced masonry (URM) walls by new retrofitting technologies for blast loading.Su, Yu January 2009 (has links)
Terrorism has become a serious threat in the world, with bomb attacks carried out both inside and outside buildings. There are already many unreinforced masonry buildings in existence, and some of them are historical buildings. However, they do not perform well under blast loading. Aiming on protecting masonry buildings, retrofitting techniques were developed. Some experimental work on studying the effect of retrofitted URM walls has been done in recent years; however, these tests usually cost a significant amount of time and funds. Because of this, numerical simulation has become a good alternative, and can be used to study the behaviour of masonry structures, and predict the outcomes of experimental tests. This project was carried out to find efficient retrofitting technique under blast loading by developing numerical material models. It was based on experimental research of strengthening URM walls by using retrofitting technologies under out-of-plane loading at the University of Adelaide. The numerical models can be applied to study large-scaled structures under static loading, and the research work is then extended to the field of blast loading. Aiming on deriving efficient material models, homogenization technology was introduced to this research. Fifty cases of numerical analysis on masonry basic cell were conducted to derive equivalent orthotropic material properties. To study the increasing capability in strength and ductility of retrofitted URM walls, pull-tests were simulated using interface element model to investigate the bond-slip relationship of FRP plates bonded to masonry blocks. The interface element model was then used to simulate performance of retrofitted URM walls under static loads. The accuracy of the numerical results was verified by comparing with the experimental results from previous tests at the University of Adelaide by Griffith et al. (2007) on unreinforced masonry walls and by Yang (2007) on FRP retrofitted masonry walls. To study the de-bonding behaviours of retrofits bonded to masonry, and find appropriate solution to protect certain masonry walls against blast loading, various retrofitting technologies were examined. The simulation covers explosive impacts of a wide range of impulses. Based on this work, pressure-impulse diagrams for different types of retrofitted URM walls were developed as a design guideline for estimating the blast effect on retrofitted masonry walls. The outcomes of this research will contribute to the development of numerical simulation on modelling retrofitted URM walls, improving the technique for explosion-resistant of masonry buildings, and providing a type of guideline for blast-resistant design. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1349719 / Thesis (M.Eng.Sc.) - University of Adelaide, School of Civil, Environmental and Mining Engineering, 2009
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