Global ETD Search

391	Safeguards for Uranium Extraction (UREX) +1a Process Feener, Jessica S. 2010 May 1900 (has links) As nuclear energy grows in the United States and around the world, the expansion of the nuclear fuel cycle is inevitable. All currently deployed commercial reprocessing plants are based on the Plutonium - Uranium Extraction (PUREX) process. However, this process is not implemented in the U.S. for a variety of reasons, one being that it is considered by some as a proliferation risk. The 2001 Nuclear Energy Policy report recommended that the U.S. "develop reprocessing and treatment technologies that are cleaner, more efficient, less waste-intensive, and more proliferation-resistant." The Uranium Extraction (UREX+) reprocessing technique has been developed to reach these goals. However, in order for UREX+ to be considered for commercial implementation, a safeguards approach is needed to show that a commercially sized UREX+ facility can be safeguarded to current international standards. A detailed safeguards approach for a UREX+1a reprocessing facility has been developed. The approach includes the use of nuclear material accountancy (MA), containment and surveillance (C/S) and solution monitoring (SM). Facility information was developed for a hypothesized UREX+1a plant with a throughput of 1000 Metric Tons Heavy Metal (MTHM) per year. Safeguard goals and safeguard measures to be implemented were established. Diversion and acquisition pathways were considered; however, the analysis focuses mainly on diversion paths. The detection systems used in the design have the ability to provide near real-time measurement of special fissionable material in feed, process and product streams. Advanced front-end techniques for the quantification of fissile material in spent nuclear fuel were also considered. The economic and operator costs of these systems were not considered. The analysis shows that the implementation of these techniques result in significant improvements in the ability of the safeguards system to achieve the objective of timely detection of the diversion of a significant quantity of nuclear material from the UREX+1a reprocessing facility and to provide deterrence against such diversion by early detection. nuclear material safeguards UREX UREX+1a Uranium Extraction proliferation resistant proliferation resistance reprocessing PUREX Plutonium Uranium IAEA TMFD Tension Metastable Fluid Detector detection probability nondetection probability non-detection probability nuclear material accountancy containment and surveillance solution monitoring process monitoring false alarm probability real-time measurement material balance area material balance period key measurement point significant quantity timely detection defense in depth detector non-destructive assay NDA front-end measurement material unaccounted for CCD-PEG TRUEX TALSPEAK
392	Systémy TZB v nemovitých památkách / The systems of building services in immovable heritage Maurerová, Lenka Unknown Date (has links) The present PhD. thesis deals with the systems of building services (namely heating, ventilating and air conditioning, shading) which provide required indoor microclimate inside the immovable heritage. The work thus combines the exclusively technical field of building services (BS) and the general principles of heritage conservation. The aim of my PhD. thesis is the analysis of immovable heritage conservation processes, focusing on the current state of research and BS systems documentation. Furthermore the work concerns the possibilities of temporary measurements of indoor climate parameters inside the immovable heritage, and aims to develop a computer model (in BSim software) for the simulation of various working conditions in the selected buildings. For the stated aims were selected three representative historic houses: historical assembly hall at the Faculty of Civil Engineering, Brno University of Technology; the Palm Greenhouse at Lednice Chateau in Moravia; and Villa Tugendhat in Brno. These buildings had been surveyed for several years, and in this PhD. thesis I present their analysis, evaluation, and conclusions. The aims of this PhD. thesis broadly correspond to the transnational objectives. The present research is, for example, in accordance with the international document ICOMOS Charter (Zimbabwe, 2013) which is concerned with the analysis, conservation, and restoration of architectural heritage. The research of immovable heritage is also supported by European Union, e.g. by the Seventh Framework Programme of EU.
393	Invloed van ŉ pendelhuwelik op die jong kind in die gesin / The influence of a commuter marriage on the young child in the family De Villiers, Heilletje Maria Margaretha 10 1900 (has links) Text in Afrikaans / Pendelhuwelike is aan die toeneem en het verskeie invloede op die jong kind in die gesin. Die primêre doel van die studie was om emosionele en sosiale intelligensie as basis te gebruik om die invloed van ŉ pendelhuwelik op ŉ jong kind tussen 7 en 11 jaar te bepaal. ŉ Gemengde navorsingsontwerp is as empiriese ondersoek gedoen. Vyf deelnemers het deelgeneem in drie sessies elk. Die data-insamelingsinstrumente was: waarneming en veldnotas; projeksiemedia; ŉ vraelys, en ŉ semi-gestruktureerde onderhoud met elk van die betrokke moeders. Die meting van emosionele en sosiale ontwikkeling met behulp van die vraelys toon dat, ongeag van die afwesigheid van die deelnemers se vaders, en die konflikte, vrese en behoeftes wat hulle ervaar volgens die projeksiemedia, die deelnemers se emosionele en sosiale ontwikkeling oorwegend gemiddeld tot hoog is. Die uitkomste bied hopelik ŉ insiggewende bydrae hoe pendelhuwelike vyf jong kinders se emosionele en sosiale ontwikkeling beïnvloed het. / Commuter marriages are increasing and have various influences on the young child in the family. The primary aim of this study was to determine the influences of a commuter marriage on a young child between 7 and 11 years, using emotional and social intelligence as a basis. A mixed method empirical research design was used. Three sessions were conducted with five participants individually to obtain data through: observations and field notes, projection media, a questionnaire, and a semi-structured interview with each mother. The measurement of emotional and social development through the use of the questionnaire shows that, despite the absence of the participants’ fathers, and the conflicts, fears and needs they experienced according to the projection media, the participants’ emotional and social development are predominantly average to high. The study hopefully provides a significant contribution to the understanding of how commuter marriages influenced five young children’s emotional and social development. / Psychology of Education / M. Ed. (Voorligting) Pendelhuwelik Emosionele en sosiale ontwikkeling Veilige binding met ouers Emosionele intelligensie Sosiale intelligensie Kinders in die pendelhuwelik Interpersoonlike verhoudings Selfaktualisering Betekenisvolle ander Verdedigingsmeganismes Commuter marriage Emotional and social development Secure attachment with parents Emotional intelligence Social intelligence Children in commuter marriages Interpersonal relationships Self-actualisation Significant other Defence mechanisms 370.1580968
394	Invloed van ŉ pendelhuwelik op die jong kind in die gesin / The influence of a commuter marriage on the young child in the family De Villiers, Heilletje Maria Margaretha 10 1900 (has links) Text in Afrikaans / Pendelhuwelike is aan die toeneem en het verskeie invloede op die jong kind in die gesin. Die primêre doel van die studie was om emosionele en sosiale intelligensie as basis te gebruik om die invloed van ŉ pendelhuwelik op ŉ jong kind tussen 7 en 11 jaar te bepaal. ŉ Gemengde navorsingsontwerp is as empiriese ondersoek gedoen. Vyf deelnemers het deelgeneem in drie sessies elk. Die data-insamelingsinstrumente was: waarneming en veldnotas; projeksiemedia; ŉ vraelys, en ŉ semi-gestruktureerde onderhoud met elk van die betrokke moeders. Die meting van emosionele en sosiale ontwikkeling met behulp van die vraelys toon dat, ongeag van die afwesigheid van die deelnemers se vaders, en die konflikte, vrese en behoeftes wat hulle ervaar volgens die projeksiemedia, die deelnemers se emosionele en sosiale ontwikkeling oorwegend gemiddeld tot hoog is. Die uitkomste bied hopelik ŉ insiggewende bydrae hoe pendelhuwelike vyf jong kinders se emosionele en sosiale ontwikkeling beïnvloed het. / Commuter marriages are increasing and have various influences on the young child in the family. The primary aim of this study was to determine the influences of a commuter marriage on a young child between 7 and 11 years, using emotional and social intelligence as a basis. A mixed method empirical research design was used. Three sessions were conducted with five participants individually to obtain data through: observations and field notes, projection media, a questionnaire, and a semi-structured interview with each mother. The measurement of emotional and social development through the use of the questionnaire shows that, despite the absence of the participants’ fathers, and the conflicts, fears and needs they experienced according to the projection media, the participants’ emotional and social development are predominantly average to high. The study hopefully provides a significant contribution to the understanding of how commuter marriages influenced five young children’s emotional and social development. / Psychology of Education / M. Ed. (Voorligting) Pendelhuwelik Emosionele en sosiale ontwikkeling Veilige binding met ouers Emosionele intelligensie Sosiale intelligensie Kinders in die pendelhuwelik Interpersoonlike verhoudings Selfaktualisering Betekenisvolle ander Verdedigingsmeganismes Commuter marriage Emotional and social development Secure attachment with parents Emotional intelligence Social intelligence Children in commuter marriages Interpersonal relationships Self-actualisation Significant other Defence mechanisms 370.1580968
395	Vliv specifické lokality na cenu rezidenčního objektu na Brněnsku / The Influence of a Specific Location on the Price of Real Estate for Residential Housing in Brno and its Surroundings Drochytka, Jan January 2020 (has links) Residential building, sales comparison approach, market valuation, specific location, arm’s length price, market value
396	The challenges of teaching at-risk learners at a secondary school in Cape Town Oyewo, Saheed Adekunle 01 1900 (has links) The study focused on the challenges of teaching at-risk learners at secondary schools. A qualitative investigation based on interviewing and observation was conducted with sixteen teachers teaching at-risk learners. Findings revealed that pre-service teacher training does not prepare teachers adequately to teach learners at risk constructively. Findings also revealed that at-risk learners have no control over themselves due to lack of parental support as parents show no commitment and support for their children’s education. Interventions to counter challenges with teaching at-risk learners relate to applicable preservice teacher training to engage with at-risk learners constructively and continuous in-service teacher training as professional development to empower teachers to engage with at-risk learners appropriately. At-risk learners must value second-chance education opportunities with schools ensuring that a supportive school culture prevails. The study contributes to the discourse on effective teaching practices to support at-risk learners for acceptable academic attainment. / Educational Management and Leadership / M. Ed. (Education Management) Academic attainment At-risk learner Commitment Constructive education Parental support Professional development School culture Secondary schools Significant adult Teacher training 373.102309687355
397	Partner satisfaction and renewal likelihood in consumer supported agriculture (CSA) : a case study of The Equiterre CSA network Achuo, George January 2003 (has links) No description available. Organic farming -- Québec (Province).
398	Administrator Perceptions of the Community College Mission in the State of Mississippi and How it may be Influenced by the Addition of Community College Baccalaureate Programs Grizzell, Scharvin S 07 May 2016 (has links) For many years, community colleges that chose to offer community college baccalaureate (CCB) programs were looked upon in a negative light (Rice, 2015). However, as the need for specialized baccalaureates within specific fields and job markets have continued to grow (McKee, 2005), CCB programs are becoming more widely accepted throughout the United States. In spite of this paradigm shift, Mississippi is one of the remaining states that have not embraced the idea of CCB programs, in spite of its statistical deficiency in regards to baccalaureate degree holding citizens (Williams, 2010). The focus of this study was to explore the perceptions of community college administrators in Mississippi with regards to the influence of CCB programs to the community college mission of institutions in their state. This study indicates that administrators in Mississippi recognize the benefits of offering CCB programs, but do not want CCB programs to take away from the well-established statewide higher education system through mission creep. Many of the strong position statements received overwhelmingly neutral responses. In contrast, Administrators who chose to give their opinion indicated that they are not familiar with how CCB programs are implemented, and do not believe that Mississippi is ready for CCB programs across the state. However, respondents felt that the community college mission is always evolving, should meet students’ needs, and varies from location to location. The findings also show that administrators are favorable to the piloting of CCB programs at a few (1-2) institutions, even though they believe the programs will take funding away from current programs and do not want community colleges evolving into 4-year institutions. The study also concludes that there is a significant difference between institution size and survey questions #18 and #20. There is also a significant difference between length of time in the community college sector and survey questions #15, #17, and #18. For many years 2015). However 2005) should meet students’ needs #17 and #18.
399	Partner satisfaction and renewal likelihood in consumer supported agriculture (CSA) : a case study of The Equiterre CSA network Achuo, George January 2003 (has links) No description available. Organic farming -- Québec (Province).
400	Circadian blood pressure within young adults in Viet Nam : An exploratory study comparing a normal blood pressure group and a prehypertension group Zahirovic, Rezak, Ekman, Scott January 2015 (has links) Hypertension is a global disease that many effected people in developing countries is not aware of. Hypertension is linked with cardiovascular disease. Prehypertension is not a disease but if not correctly treated, it could develop into hypertension. The aim of the study was to investigate if there are any differences in circadian blood pressure between two study groups, one group with normal blood pressure and one group with prehypertension. This study was a explorative study and its design is based on measurements of blood pressure values and a questionnaire was used to help get the data collection. 51 students volunteered to have their blood pressure taken from them and out of these 51, 24 where selected into two groups of 12 each for the Ambulatory blood pressure monitoring. hese 24 students would be a part of our study and an ambulatory (Schiller-102 plus) blood pressure monitor was used to collect the data. The prevalence of prehypertension findings in the clinical testing phase was 37% of the population. There was a variation between the groups during the day (systolic) but there was not a significant difference during the night. Prehypertension ambulatory blood pressure Blood pressure

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