Dissertations / Theses on the topic 'Demand determination'
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Borggren, Lisa, Rebecca Grill, Susanna Lykken, and Maria Nilsson. "Demand based price determination for electricity consumers in private households." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295186.
Full textPhipps, Scott Douglas. "Performance Evaluation and Yield Determination of a Full-Scale Biological Aerated Filter." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31495.
Full textMaster of Science
Baker, Matthew Ernest. "Identifying Causes of Dissolved Oxygen Depletion and Determination of Sediment Oxygen Demand in the Souris River." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/27188.
Full textUnlu, Naim Teoman. "Improving the Turkish Navy requirements determination process ban assessment of demand forecasting methods for weapon system items." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA401563.
Full text"December 2001". Thesis advisor(s): Gue, Kevin R. ; Crouch, Thom W. Includes bibliographical references (p. 39-41). Also available online.
Urban, Graeme John. "Probabalistic load modelling of electrical demand of residential water heating." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20071.
Full textENGLISH ABSTRACT: Energy efficiency and the move to renewable energy resources are of vital importance in growing profitable and sustainable economies. In recent years, greater emphasis has been placed on institutions, companies and individuals to reduce their electrical energy demand through energy management. In an attempt to reduce the demand, the electrical power utility in South Africa, Eskom, has introduced Demand Side Management programs and substantial increases in electricity tariffs. In addition to these, tax incentives have been offered to help off-set the capital costs associated with the investments made in replacing old electrical equipment with new electrically efficient equipment. Thus the need for accurate Measurement and Verification of electrical energy demand reduction, to substantiate fiscal claims, has become imperative. The main purpose of Measurement and Verification is to investigate the actual monetary performance of an energy savings project. Energy savings assessments, based on purely deterministic baseline demand, do not adequately represent the statistical nature of the savings impacts of many practical load systems, as disclosed in a reporting period. This thesis presents the development of a generic probabilistic methodology to determine the demand profiles of preand post-Energy Conservation Measures (ECMs) for practical load systems. The difference between the simulated demand of the pre- and post-ECMs for a particular set of variables represent the electrical demand impact. The electrical demand of the pre- and post-ECMs is defined in terms of Probability Density Functions, and derived using a multivariate kernel density estimation algorithm. The approach is tested using a simulation model of a waterheating geyser implemented in MATLAB. Three different ECMs are simulated using the geyser model and demand density estimation. The results of the demand impacts of the ECMs are presented and evaluated. With regards to possible future research this methodology could be applied to the evaluation of the demand impacts of heat pump technologies and solar water heaters.
AFRIKAANSE OPSOMMING: en die skuif na hernubare energiebronne is van deurslaggewende belang vir die ontwikkeling van winsgewende en volhoubare ekonomieë. Onlangs is meer klem geplaas op instansies, maatskappye en individue om hul aanvraag na energie te verminder met behulp van energiebestuur. In ‘n poging om die aanvraag te verlaag, het Eskom, Suid-Afrika se elektrisiteitsverskaffer, aansienlike elektrisiteitstariefverhogings ingelyf en Aanvraagbestuursprogramme van stapel gestuur. Bykomend hiertoe is belastingaansporings ook aangebied, waarteen kapitale kostes, geassosieer met die vervanging van ou elektriese toerusting met nuwe elektries doeltreffende toerusting, afgeset kan word. Derhalwe het die behoefte aan akkurate Meting en Verifikasie van elektriese energie aanvraagvermindering, om finansiële eise te staaf, noodsaaklik geword. Die hoofdoel van Meting en Verifikasie is om die werklike finansiële prestasie van energiebesparingsprojek te ondersoek soos bekend gemaak word tydens ’n verslagdoeningstydperk. Energiebesparingassesserings wat slegs gebaseer word op die suiwer deterministiese basislyn aanvraag na elektrisiteit, verteenwoordig nie die werklike statistiese aard van die besparingsimpakte van baie praktiese lasstelsels nie. Hierdie tesis stel die ontwikkeling van generiese waarskynlikheids-metodologie voor, om die voor- en na- Energiebesparings-maatreëls se aanvraagprofiele vir sulke praktiese lasstelsels, vas te stel. Die verskil tussen die gesimuleerde aanvraag van die voor- en na- Energiebesparings-maatreëls vir spesifieke stel veranderlikes verteenwoordig die elektriese aanvraag impak. Die voor- en na- Energiebesparings-maatreëls van die energieverbruik profieldata word gedefinieer in terme van Waarskynlikheidsdigtheidsfunksies en afgelei deur gebruik te maak van meerveranderlike kerndigtheidafskattingsalgoritme. Die benadering is getoets deur gebruik te maak van simuleringsmodel van warmwaterstelsel geïmplimenteer in MATLAB. Drie verskillende voor- en na- Energiebesparings-maatreëls is gesimuleer met behulp van die warmwaterstelselmodel en aanvraag digtheidafskatting. Die resultate van die elektriese aanvraag impakte van die voor- en na- Energiebesparings-maatreëls word vervolgens bespreek en geëvalueer. Met betrekking tot moontlike toekomstige navorsing kan hierdie metodologie toegepas word om die aanvraag impakte van hittepomp- en sonwaterverwarmingstegnologieë te evalueer.
Yazgan, Ufuk. "A Methodology For Determination Of Performance Based Design Parameters." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1120682/index.pdf.
Full textTamuno, Paul Samuel. "The potential of the indigenous people's right to self-determination as a framework for accommodating the Niger Delta Communities' demand for self-determination within the sovereignty of Nigeria." Thesis, University of Aberdeen, 2015. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=227612.
Full textJiang, Dianlu, and n/a. "Studies of Photocatalytic Processes at Nanoporous TiO2 Film Electrodes by Photoelectrochemical Techniques and Development of a Novel Methodology for Rapid Determination of Chemical Oxygen Demand." Griffith University. School of Environmental and Applied Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040723.155003.
Full textFilho, Edmar Honorato de Sousa. "AnÃlise da demanda e modelos de preÃos hedÃnicos no mercado imobiliÃrio da cidade de Fortaleza." Universidade Federal do CearÃ, 2004. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1472.
Full textO presente trabalho consiste no estudo dos determinantes econÃmicos que contribuem para a formaÃÃo dos preÃos do mercado imobiliÃrio da cidade de Fortaleza, Estado do CearÃ, na Ãtica dos agentes econÃmicos de demanda, fundamentado na teoria dos preÃos hedÃnicos ou preÃos implÃcitos. O modelo proposto pelo trabalho investiga preÃos implÃcitos na curva de utilidade de um agente de demanda segmentado em dois grupos: consumidor direto do bem habitaÃÃo e o investidor em imÃveis, que incorpora adicionalmente atributos econÃmicofinanceiros que medem o grau de risco e retorno na formaÃÃo dos preÃos hedÃnicos. O estudo estima os preÃos hedÃnicos atravÃs de uma regressÃo segmentada por tipo de imÃvel dos preÃos observados contra os diversos atributos distribuÃdos nos vetores de caracterÃsticas fÃsicas, locacionais, econÃmicas e financeiras. A amostra selecionada para estimaÃÃo do modelo à formada pelas transaÃÃes imobiliÃrias de lanÃamentos ocorridas na cidade (perÃodo de 1995 a 2003), bem como terrenos urbanos (perÃodo de 1995 a 1998), perfazendo o montante de 4.467 ocorrÃncias imobiliÃrias, sendo 876 apartamentos residenciais, 1969 flats, 539 terrenos e 1622 salas comerciais. O trabalho investiga ainda as principais caracterÃsticas do mercado imobiliÃrio, estima a funÃÃo de demanda imobiliÃria para a cidade de Fortaleza, fornecendo diagnÃstico da dinÃmica habitacional dessa metrÃpole e identifica o comportamento de risco imobiliÃrio dos bairros da cidade de Fortaleza.
The present work consists of the study of the economical determinants that contribute to the formation of the prices of the real estate market of the city of Fortaleza (CearÃ), in the optics of the economical agents of demand, based in the hedonic or implicit prices theory. The model considered for the work investigates implicit prices in the curve of utility of an agent of demand segmented in two groups: direct consumer of the good house and the investor in properties, that it incorporates economical-financial additionally that measure the degree of risk and return in the formation of the hedonic prices. The study esteem the hedonic prices through a regression segmented by type of property of the prices observed against the several attributes distributed in the vectors of physical, location, economical and financial characteristics. The sample selected for estimate of the model is formed by the real estate transactions of occured launchings in the city (period from 1995 to 2003), as well as urban lands (period from 1995 to 1998), totalize the sum of 4.467 real estate occurrences, being 876 residential apartments, 1969 flats, 539 lands and 1622 commercial rooms. The work still investigates the main characteristics of the real estate market, it esteem the function of real estate demand for the city of Fortaleza, supplying diagnosis of the habitation dynamics of that metropolis and identifies the behavior of real estate risk of the quarters of the city of Fortaleza.
Ilten, Paul. "Ansätze für profitables Wachstum von BPO-Dienstleistern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-175529.
Full textIn this thesis it is studied how a theory-based assessment of business processes regarding their adequacy for outsourcing can be carried out and what starting points for profitable growth of Business Process Outsourcing (BPO) providers in Germany can result from the application of such a methodology. For this purpose a three step approach is taken. As a first step a theory-based concept of an assessment model to determine the adequacy of outsourcing business processes is developed. As a second step possibilities for transferring the concept of this model to real life applications are examined. In a final third step it is shown how the assessment model developed here can be used as part of the marketing activities of BPO companies to contribute to their profitable growth
Came, Paula Marie. "The relevance of working conditions and skill demands in the construction of a sociological model of wage determination /." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55591.
Full textFosselius, Frida, and Kristina Hansson. "”JAG TROR DET ÄR LYCKLIGAST PÅ NÅGOT SÄTT OM MAN SLIPPER TVÅNGET” : En kvalitativ studie om att vara anhörig till en person med en demenssjukdom." Thesis, Mälardalens högskola, Hälsa och välfärd, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55163.
Full textWhen people with substance abuse problems expose themselves to severe danger, coercive care can be considered, by law. When people with dementia put their health at serious risk the social services are without authority to act. Relatives are instead expected to take great responsibility. The aim of this study was to examine how relatives of people with dementia experience the care services, the scope for action and legislative support that does or doesn’t exists in dementia care. The study shows, through qualitative interviews with six relatives, that there are acts of coercive nature without legal basis in the case management and execution of eldercare. Overall, relatives are against a coercive law. There are, however, factors that can increase the acceptance of introducing a legal basis for coercion, such as dignity and safety. Even if a need for coercion was considered, the basic moral attitude was to protect the right to self-determination, and that the legislation would probably be problematic. Alternative solutions emerged, such as further education for caregivers as well as continuous development of eldercare and the treatment from caregivers. The study also shows that relatives experience a great deal of mental strain which can manifests itself such as bad conscience.
Arantes, Mariana Quites. "O cuidado em saúde: um enfoque sob necessidades de saúde na ótica de enfermeiros (as) na estratégia de saúde da família." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/22/22133/tde-05112012-202252/.
Full textThis study deals with the practice of graduated nursing professionals who work in services of Primary Health Care Network, especially in the Family Health Strategy (FHS). It aims to analyze how nurses identify and intervene in health needs presented by the users who demand the health services of three Family Health Units, located in the city of Marilia, state of São Paulo, besides to understand the difficulties and facilities of nurses to develop nursing practice, in view of the production of health care. It consists of a descriptive and qualitative study. For data collection, free observation and semi-structured interview were used. The free observation was during the scheduled and possible attendances occurred in the unit and also at the home visit. Participants were three nurses form the FHS in the north zone of the city. For data analysis, the Thematic Content Analysis was used. During the analysis it was possible to identify a thematic unit related to the identification and interventions performed by nurses, who were subjects of this research, and two subunits: episodic events and previous problems and episodic events and current problems. The results showed predominance of the identification of health needs as a synonym of complaints, and in the interventions, the reasoning in biological knowledge prevailed. Regarding the facilities mentioned by the nurses are the bond and autonomy for some procedures, and the difficulties highlighted were the lack of human resources, non-compliance of users in relation to collective activities, among others. Thus it is concluded that investments are needed in training and qualification of nurses to change their practice in health, nowadays focused on the disease, for a practice based on an expanded concept of health-disease process, so that the satisfaction of needs, desires and doubts of the users becomes the focus of nursing care. It is necessary to use the Continuing Education in the setting of health work in primary care and thus provide a qualified listening of workers, especially nurses, who work in health services.
Wallin, Håkansson Helena, and Fredrik Borg. "Biståndsbedömning för klienter med demenssjukdom : Biståndshandläggares erfarenheter och upplevelser." Thesis, Högskolan i Gävle, Avdelningen för socialt arbete och kriminologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-32988.
Full textTitel: Biståndsbedömning för klienter med demenssjukdom - Biståndshandläggares upplevelser och erfarenheter Författare: Fredrik Borg och Helena Wallin Håkansson Studiens syfte var att undersöka biståndshandläggares upplevelser, svårigheter och etiska ställningstaganden vid biståndsbedömning av klienter med demenssjukdom. Studien utgick från temana självbestämmande och integritet, trygghet och meningsfull tillvaro samt etiskt förhållningssätt. Kvalitativa semistrukturerade intervjuer användes som datainsamlingsmetod. Empiriskt material bestående av transkriberade intervjuer, analyserades utifrån teorierna empowerment och systemteori. Som resultat konstateras att biståndshandläggare dagligen hanterar etiska dilemman kring klientens självbestämmande och integritet, i relation till rätten till trygghet och meningsfull tillvaro. Informanterna förmedlade att det i praktiken handlar om att vara medmänniska med förståelse och empati, anpassat till den aktuella situationen. Tidigare forskning visar på bland annat etiska dilemman kring anhörigvårdare och beslutsfattande för äldre människor med demens. Detta framkom även i vår studie. För framtida forskning tror vi det kan vara relevant att kartlägga varför det ser olika ut kring användning av anhörigbehörighet.
Bergnéhr, Per, and Marcus Sjöberg. "Vem får ansöka? : En kvantitativ vinjettstudie om biståndshandläggares benägenhet att ta emot ansökan från anhöriga." Thesis, Stockholm University, Department of Social Work, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-33837.
Full textThis essay is about needs assessors within public elder care. The method is a quantitative vignette study. The aim of the study is to find out whether there is an existing consensus among the needs assessors when a relative to a client with reduced cognitive functions wants to make an application even though the client does not want to. We also wanted to find out whether there are any underlying circumstances which have influence on the needs assessors’ reactions to this specific situation. We used a questionnaire which consisted of four vignettes that illustrated a meeting between a needs assessor, a client and a relative to the client. The vignettes was complemented with questions that made it possible to find underlying circumstances that determine whether the needs assessors do accept the application from the clients relative. The result shows that professional experience and education is significant for whether the needs assessors choose to accept the application or not. It is also clear that there are variations depending on which town district the needs assessors work in. In some town district the needs assessors act with great similarity while there are huge differences in other town districts.
Yu, Fang, and 鄭芳宇. "The study of chemical oxygen demand determination of saline water." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/12376297741510570640.
Full text正修科技大學
化工與材料工程研究所
97
The chemical oxygen demand is reflects the water body one of organic matter pollution degree important targets, however in water sample if has the chloride ion, can have the serious disturbance in the chemical oxygen demand determination to cause to measure the value is high, then misinterprets its analysis result, this research in view of Executive Yuan environmental protection bureau environment examination center water quality examination announcement method (NIEA W516.54A), the high concentrated halogen ion of chemical oxygen demand examination method including of water-Potassium Dichromate back-flow method, proposes in the step improvement and the suggestion, by the time can in the fine accurate survey sea water the chemical oxygen demand. This research reference above method, take chloride ion density 2000 mg/L as the low halogen and watershed of the high halogen water sample, in view of shed chlorine time length, Potassium Dichromate Back-flow liquid concentration and Increase Chromium-potassium sulfate or not, discusses the sea water chemical oxygen demand by its result the most suitable method. By experimental result knowing, the high halogen sample its shed chlorine time take 4 hours above as good, uses 0.001667 M Potassium Dichromate back-flow with to do for the oxidant, on the one hand may reduce the dichromate ion and the chloride ion Oxidation-Reduction action, on the other hand may reduce in the titrate step the error, the increase Chromium-potassium sulfate may suppress the dichromate ion in the digestion back-flow of the self-decomposition reaction. This research discussion most suitable method, its applicable scope is COD below density 20 mg/L, also the chlorine salinity reaches as high as when 20000 mg/L was still suitable, therefore its should also be suitable for examination the sea water chemical oxygen demand. But by entire research process, is the suggestion when in the water the chloride ion density is higher than 1000 mg/L, If passes through the shed chlorine process to be supposed first to be possible to improve the empirical datum quality.
"Joint determination of sales lever and inventory control with uncertain demand." Thesis, 2006. http://library.cuhk.edu.hk/record=b6074203.
Full textAssuming that unmet demand is fully backlogged, a newsvendor-type profit function which is defined as the resulting expected one-period profit with sales lever being optimized for every inventory level, fails to be unimodal. By assuming the newsvendor-type profit function to have a finite number of local maxima, we develop an efficient algorithm for finding the optimal ( s, S, z) policy with the long-run average profit derived by the renewal theory. We further identify the conditions under which the (s, S, z) policy is globally optimal.
Issues on the interfaces between operations management and marketing research have attracted much attention recently. The developments integrating marketing decisions into inventory management are not only of academic interest, but also of practical importance. With uncertain demand, this research studies the joint determination of inventory and sales lever decisions such as price, incentives to salesforce, and short-term promotions, or a combination of them.
We consider a single-item, periodic-review system with the objective of maximizing the long-run average profit over an infinite planning horizon. Demand in a period is a non-negative, discrete random variable with its distribution dependent on the sales lever chosen for the period. A replenishment order can be placed at the beginning of a period incurring both fixed and variable ordering costs. The sales lever is determined jointly, and its execution may incur possible cost, for example, promotion cost. For such a model, we take particular interest in a so-called (s, S, z) policy, which operates as follows: whenever the inventory level falls to or below s, an order is placed to bring it up to S; when the inventory level is above s, no order is issued; the choice of sales lever z depends on the inventory level.
We finally conduct an extensive numerical study for both the backlogging and lost-sales cases. We compare the benefits of the dynamic sales lever strategy with those of the semi-dynamic as well as the static sales lever strategy, and find that the profit gains are significant. By sensitivity analysis, we bring out the impact of cost parameters on the optimal solutions.
Wei Ying.
"December 2006."
Adviser: Youhua Frank Chen.
Source: Dissertation Abstracts International, Volume: 68-09, Section: A, page: 3961.
Thesis (Ph.D.)--Chinese University of Hong Kong, 2006.
Includes bibliographical references (p. 125-131).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Electronic reproduction. Ann Arbor, MI : ProQuest dissertations and theses, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstract in English and Chinese.
School code: 1307.
Chen, Shin-Jiun, and 陳信君. "Determination of the Chemical Oxygen Demand in Wastewater Using Microwave Energy." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/75385075936059482979.
Full text淡江大學
水資源及環境工程學系
85
(1)Deteimination of the Chemical Oxygen Demand in the Wastewater Using Microwave Energy A method for the determination of chemical oxygen demand(COD) by the dichromate reflux method is used as a measure of the organic matter content of a sample. Although it is the standard method of the EPA, but it takes a long time and a lot of liquid waste. The use of microwave in analytical and environmental chemistry has increased markedly in recent year, in this study, a method to determine the COD using household microwave oven and mercury-free has been developed. From the results of experiment, the microwave condition of real samples is microwave power 419.4W, time 4min, sample 5mL, sulfuric acid reagent 7mL, silver nitrate solution 1mL(0.0705N), potassium dichromate solution 2mL(O.1N). This method for the quantitave recovery of APG Q.C. sample is 97.7%, standard deviation 2.58mg/L, the quantitave recovery of real samples is between 89%∼105%, this method could be developed for real samples with chloride concentration less then 800mg/L and COD less then 200mg/L. For determination different diluted radio samples simultaneously, we need to increase the microwave power to 713.2W. this method could be developed for real samples with chloride concentration less then 800mg/L and COD less then 200mg/L. ln the results, the microwave and mecury-free method to replace the conventional dichromate reflux method is possible. (2)Microwave Extration of the Collection of PCBs in the Ambient Air by Solid Adsorbent Sampling of PCBs is collected by solid adsorbent, extracted by Soxhlet extraction method, but it takes a long time and consumes lots of solvents. So in this study, we collected gas samples by PS-1 samper and discussed PCBs in the solid adsorbent(XAD-2)which used microwave extraction method to extract. In this study, we adopted orthogonal array to find the best microwave condition, the best microwave condition is temperature 100℃, sovent 30mL(Hexane:Acetone)1:1, time 1Omin. Sampling in the vicinity of TamSui campus and different sites, extraction by microwave condition and detected by GC/ECD. From the results of experiment, the PCBs can not be found in gas phase(XAD-2), butPCB-52、PCB-87、PCB-138、PCB-191、PCB-195、PCB-206、PCB-207 can be found in solid phase(filter).
Ciou, Sin-Hao, and 邱信豪. "A Photoelectrocatalytic Method Using Titanium Dioxide Nanotube Arrays for Chemical Oxygen Demand Determination." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48255277122479019878.
Full text朝陽科技大學
環境工程與管理系碩士班
100
Chemical oxygen demand (COD) is one of the main items of water quality monitoring parameters. The standard method for the detection of COD is potassium dichromate method (CODcr ). The standard dichromate chemical oxygen demand (COD) method is a time-consuming and tedious and prone to the shortcomings of secondary pollution. The standard method can not be timely monitoring Demand. due to superior physical, chemical, and optical properties, titanium dioxide has been successfully applied to photocatalytic reaction. In this study, used a TiO2 nanotube arrays film, a platinum electrode and a calomel electrode to setup a three-electrodes photoelectrocatalysis reaction system. In this photoelectrocatalytic system the fixed spacing between UV lamp and TiO2 is 1 cm and light intensity is 20 mW/cm 2 . A constant potential coulometry method was applied to determine various COD values of different concentrations of standard solution with different experimental variables (such as detection time, applied voltage, pH, and chlorine ion concentration). The experimental results show that the detected coulombs increase with the COD concentration (10 - 300 mg/L) increased.The best detection parameters are 0.4 V of applied voltage, 10 seconds of detection time and solution pH 4 – 10. At the meantime up to 600 mg/L of molestation chlorine ions of were dispelled. The performances of the three electrode reaction system were also evaluated. The results show 0.3 % of stability, 0.9 % of reproducibility and 0.6 mg/L of detection limit. Finally, availability of this system to the true waste water was also verified. The detected coulombs by the constant potential coulometry method with different domestic industrial wastewaters were corresponds to corrected line of standard CODcr and a linear III relationship (R 2 = 0.996) was found. The results reveal this system is suitable for the fast detection of COD in effluent of various industrial wastewater.
Ting, Yu-Chiao. "A Study of Multichannel Method for Rapid Determination of Chemical Oxygen Demand Using Microwave Digestion." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0002-1303200716281100.
Full textTing, Yu-Chiao, and 丁裕樵. "A Study of Multichannel Method for Rapid Determination of Chemical Oxygen Demand Using Microwave Digestion." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/s32er2.
Full text淡江大學
水資源及環境工程學系碩士班
95
A simple multichannel method for rapid determination of chemical oxygen demand (COD) using microwave digestion system to replace the conventional open reflux method is proposed. The method based on use of a modified microwave heating oven to accelerate the rate of the digestion step is described. This method consists of a first digestion step where the samples and oxidants in Teflon coil (five coils at a time) are heated by the microwave radiation and a second one where the Cr3+ in digested sample after being filtered is determined by the spectrometry. The aim of this study is to develop the method a very rapid and waste-less method for determination of COD by spectrophotometer. Only 2 mL of the mixed solution containing 1.4 mL 0.0347 M K2Cr2O7 solution, 0.6 mL 0.55 % Ag2SO4 solution and 1 mL sample are required for the digestion. The optimal heating condition of the multichannel method is microwave power 453 W and reaction time 120 seconds. A detection limit of 14 mg/L, relative standard deviation of 5%, the linear rang of 100~900 mg/L, excellent tolerance for interferences (chloride ion does not interfere at 3000 mg/L even in the absence of HgSO4 and AgNO3) are some of most significant features of the method, which has been exhaustively validated as follows (a) application to solution also analyzed using standard method (b) validation using the certified reference materials as APG quality standard tests and proficient tests (E.P.A R.O.C.). The proposed method is cost-effective, save time, energy and reagents with providing precise results for the pure organic compounds and wastewater samples.
Hung, Ming Tsai, and 洪明財. "Determination of Chemical Oxygen Demand in waters containing high chloride concentration by Ultra-Violet Spectroscopy." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/44706406526713863777.
Full text淡江大學
水資源及環境工程所
83
Chemical Oxygen Demand (COD) for determination by the dichromate reflux method cannot be accurately measured in water containing more than 2,000mg/l of Cl-. Though the procedure 〝 remove chloride─dichromate reflux〞 is developed currently to measure COD in water containing high chloride concentration that the interference may be overcome, the disadvantage is time consuming and waste generation of hazardous mercury. Therefor,in this study adopt procedure of Ultra-Violet spectroscopy and remove chloride-dichromate reflux simultaneously to measure COD in water containing high chloride concentration. Furthermore, comparing result of measuring COD with deferent operation procedure. To assess reasonableness the COD are measured in water containing high chloride by Ultra-Violet spectroscopy. Otherwise,the objective for rapid determination of COD,real- time monitoring in water,and overcome interference for chloride that also simulated model of monitoring for COD to mill water, which relative between multiwavelength absorption and COD value for suitable reference material(RM) of COD with regressive method. The result have shown that: (1) The use of Ultra-Violet Spectroscopy measure COD in water containing high chloride concentration not only rapidly but also simply;moreover it is applied to measure COD of low concentration as Method Detection Limit(MDL) = 0.4mg/l. (2)Ultra-Violet spectroscopy is a suitable method for monitoring COD in water containing high chloride concentration if the water will not contain organic SS and similar to Ultra-Violet absorptive character of reference material. (3) The use of referf ence material for potassium acid phthalate、 sodium oxalate, and that mixing solution measured COD in water by Ultra-Violet spectroscopy,it is quite accuracy for result to predict by 〝standard type model〞 with 250-300nm wavelength.
Huang, Yu-Chin, and 黃玉琴. "A Study of Flow Injection Method for Rapid Determination of Chemical Oxygen Demand Using Microwave Digestion." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/54633991211322316594.
Full text淡江大學
水資源及環境工程學系碩士班
93
A simple method for determination of chemical oxygen demand using microwave digestion in wastewater is proposed. Chemical oxygen demand (COD) is a widely used parameter used to measure water quality, as well as to control the treatment process. It is one of the important index in water monitoring. This parameter is defined as the amount of oxygen required for, or equivalent to, the oxidation of all chemically oxidizable matter in water. The traditional method for COD determination consists of oxidizing the organic matter of the sample, is done by adding a known amount of oxidant, refluxing at high temperature on open containers and titrating the excess oxidant. However, the method require the time-consuming process of heating samples to achieve more complete oxidation. It also consume some expensive(Ag2SO4) and toxic(HgSO4) chemicals. Therefore the goal of this study is to develop continuous and rapid determination of COD by microware digestion. In this system, the absorbance of Cr3+ generated during sample oxidation is measured at 600 nm, Chemical oxygen demand can be obtained in just 23 second. The optimal experimental condition are: 0.5 mL 0.141 M silver nitrate solution; 3 mL 0.55 % sulfuric acid solution; 0.75 mL 0.0417 M potassium dichromate solution and 2 mL sample. The calibration graph is liner in the range of 0~500 mg/L. The interference of Cl- can be removed up to be moved up to 4700mg/L. The method has a good precision and accuracy for KHP solution , glucose solution and sodium oxalate solution. There is results for a COD certified reference materials were in good agreement with the certified COD value. The viability of this method is demonstrated by analyzing four kinds of industrial wastewater, and the results obtained by using the method presented exhibit good agreement with those given by the standard method of COD determination, and the relative error is less than 10 %.
Jiang, Song-Lin, and 江松玲. "Preparation of high orderd TiO2 Nanotube Array Electrode for the Photoelectrocatalysis Determination of Chemical Oxygen Demand." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/75378317415648343216.
Full text國立宜蘭大學
環境工程學系碩士班
101
Chemical oxygen demand (COD) is an important index for the detection of organic pollutant in water. Traditional chemical detection method needs to reflux a long time under oxidation (about 2 to 4 hours), and toxic, corrosive chemicals (ex. potassium dichromate, silver sulfate, etc.). It may cause secondary pollution in the environment. In addition, Cl- may interference COD detection. Furthermore, the detection range of COD is very norrow and about 10 ~ 220 mg/L with traditional chemical method. In this study, high ordered titanium dioxide nanotube array films were prepared by anodic oxidation. It can work as electrode for the photoelectrocatalytic system. The titanium dioxide nanoparticles and platinum nanoparticles modified titania nanotube arrays were used to enhance the surface area and active of materials. The series of TiNT-array with Platinum were used to make up a photoelectrocatalytic system. The results of experimental show the suitable measuring range is 0 ~ 500 mg/L. Furthermore, the RSD of ten repetition is under 5 % and the detection limit is 1.04 mg/L. The stability of standard deviation is ± 0.98 mg/L. The unknown sample without Cl- is 500 mg/L, but the COD is only 251 mg/L with traditional chemical detection method. when the COD underestimate about 50 %. The COD is 445 mg/L with the photoelectrocatalytic system. It is more accurate and can not be interfered as Cl-. Therefore, the COD detection system was develop fast, accurate, and no secondary pollution.
Liu, Yu-Chung, and 劉禹均. "Demand Response with Considering Indoor Thermal Comfort of HVAC and Determination of the Minimum Suppression Contract Capacity." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/9y4u4q.
Full text國立臺北科技大學
能源與冷凍空調工程系碩士班
100
The cooling load of a building will be changed anytime. To enforce demand load-shedding and to give consideration to indoor thermal comfort, it is difficult to make a decision of a fitting suppression contract capacity that sign with Taiwan Power Company through controlling the frequency of air conditioning facilities such as chilled water pump, air handling unit and fan coil. If the amount of cooling load of a building could be learned in advance, then the load-shedding of air conditioning facilities could be estimated. This study used two cases to test and verify the accuracy of forecasting the cooling load of a building in 24 hours by Artificial Neural Network. The mean error between forecasted and actual cooling load is only 3.56%. This study also proceeded load-shedding experiment twice. The author maintained the indoor thermal comfort to an ideal range that PMV was from 0 to 0.5 and PPD was from 5 to 10 during peak time and enforced demand load-shedding control. The author analyzed the data and compared the forecasted 24-hour cooling load of the experiment day with the actual cooling load after demand load-shedding. This enable the author to estimate the fitting “minimum suppression contract capacity” that sign with Taiwan Power Company. The application of this method in order to enforce demand load-shedding control with the central air conditioning system can not only maintain the indoor thermal comfort but also achieve the goal of reducing electricity costs of air conditioning system, energy conservation and carbon reduction.
Chiang, Lee-Chen, and 姜禮城. "Ⅰ. Determination of the Chemical Oxgen Demand. Ⅱ. Determination the Efficiency of Detection Chemical Components and Physical Components for the Rainwater in Jong-Lih Area by Acid rain Automatic Monitoring." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/85025288337277938831.
Full text淡江大學
水資源及環境工程學系
87
Ⅰ. Determination of the Chemical Oxgen Demand in the Wastewater Using Microwave Energy — The Comparison Between the Closed Method And the Open Focus Reflux Method. In environmental analytic chemistry microwave-assisted methods for sample preparation have been increased rapidly in recent years .The closed vessel method and open focus reflux method were used for the determination of chemical oxygen demand (COD) in the digestion-oxidation step which was by using microwave energy. The goals of this study are to develop the mercury-free microwave assisted,digestion for COD determination and to compare between the open focus microwave and the closed vessel sample preparation methods. The optimized conditions for the closed vessel method are: sample, 5ml; sulfuric acid(0.55﹪Ag+), 7ml;0.0705M silver nitrate,1ml; 0.0417M potassium dichromate, 2ml; power(using domestic microwave oven): 512 W, reaction time: 5mins. The optimized conditions for the open focus reflux method are: sample, 5ml; sulfuric acid(0.55﹪Ag+), 7ml;0.0705M silver nitrate,1ml; 0.0417M potassium dichromate, 2ml; power(using open focus microwave oven): 300W, reaction time: 5mins. The average recovery of the closed vessel method for quality control samples were 98.3﹪and S. D. 1.8﹪.The average recovery of the open focus reflux method for quality control samples was 98.7﹪and S. D. 1.2﹪The ratio between COD values, determined by the open focus method and the closed vessel methods is 0.9360. The results show that both methods are comparable. Ⅱ. Determination the Efficiency of Detection Chemical and Physical Components for the Rainwater in Chung-Li Area by Acid rain Automatic Monitoring. The aims of this study are to characterize the rainfalls by physical and chemical parameter Chung-Li area and to compare the data from acid rain monitor with the results obtained in the laboratory. The physical and chemical parameters included temperature, rainfalls intensity, electrical conductivity, turbidity, pH value cation concentration (Na+,K+,NH4+,Ca2+,Mg2+) and anion concentration( Cl-,NO3-,SO42-).The results showed that the pH values, temperature, rainfalls intensity and electrical conductivity were very good as compared with that from the lab. However, the sulfate and nitrate by acid rain monitor, s spectrophotometer were poor probably because of bubbles and contamination in the line . Ion chromatography with conductivity detector has been used to determine cations and anions separately. The nitric acid solution(0.5mM) was used with cation-exchange column (MCI GEL SCK01) having low cation exchange capacities. The dilute 3mM Vanillin Acid and 2.8mM N-Methydiethanolamine(pH6.2) have been the main eluent species used for anions. The result shows the range of ratios (SO42 /NO3-)was 1~5 and the range of pH values were 4~7 for the rainwater in Chung-Li area.
Huang, Shih-Yang, and 黃式揚. "A Study on the Determination of the Chemical Oxygen Demand in Wastewaters Using Open Focus Microwave Digestor Coupled with Spectrophotometry." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/34036937788096986163.
Full text淡江大學
水資源及環境工程學系
87
Ⅰ.A Study on the Determination of the Chemical Oxygen Demand in Wasterwaters Using Open Focus Microwave Digestor Coupled with Spectrophotometry The traditional method for the determination of Chemical Oxygen Demand (COD) in wastewaters is mainly to digest the organics by open reflux method and then to titrate the residual Potassium dichromate by ferrous ammonium sulfate. This process not only is time-consuming but also requires a large amount of reagent. Therefore, the goals of this study are to digest the organics in wastewaters using open focus microwave digestor and then to determine the COD values by spectrophotometry. The four factors of mix-level orthogonal array design were used in this study to search the best condition for microwave diges-tion . Those four factors were microwave power, digestion time, sample/digestion reagent ratio, Ag2SO4 volume. The results were showed that the optimized digestion conditions were(1) microwave power: 90W, (2)digestion time: 2 mins, (3) sample/digestion reagent ratio: 2.5/1.5 (v/v), (4) Ag2SO4 solution volume: 3.0mL. In the beginning,the recovery of COD using potassium biphthalate(KHP) as standard were good by the microwave digestion , but poor for COD quality control sample. Therefore, the power of microwave was changed from 90W to 300W. For QC sample, average recovery was increased to 98.9%. The average recovery of the wasterwaters from different sources were good using the best microwave digestion if chloride concentration were below 1000mg/L and COD values were below 500mg/L in wastewaters. After digesting and centrifuging samples, samples were injected into flow injection analysis system and the results were comparable. The average COD recovery of the wastewaters from garbage leachate (diluted 4 times) were 94.1%. Ⅱ. Decomposition of the Polycyclic Aromatic Hydrocarbons in Soil Using Microwave Energy The aims of this study were to treat the organic compounds in soil by microwave irradiation then to detect residual compounds by microwave extraction and gas chromatography(GC). The advantages of decomposing the organics in soil by microwave energy are easy operation and simple equipment. The treating process was to add Cu2O and NaOH into the microwave vessel containing pyrene spiked sand(60~45 mesh), followed by microwave irradiation. First, the pyrene(20μg/g) was spiked into the sand before homogeneous test was completed, extracted by microwave-assisted extraction and the average recovery of pyrene was good, proven by F test and t test. Then, the parameters used for decomposing the pyrene in the soil were household microwave: 713.6W, treatment time: 40mins., reagent: Cu2O (0.3g), NaOH (10N 0.1mL) and water (5mL). Finally, the average decomposing efficiency of the pyrene was 92.7 %.
MacPherson, Jerry R. "Long-term energy demand forecasting : determination of an energy baseline and energy conservation supply curves for the Manitoba Health Care subsector." 1989. http://hdl.handle.net/1993/22867.
Full textLin, Feng-Hsiang, and 林鳳祥. "1.Determination of the Chemical Oxygen Demand in Wastewater using Closed Microwave Digestion 2.Decomposition of the PCBs in Soil Using Microwave Energy." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/79629166032163310339.
Full text淡江大學
水資源及環境工程學系
88
Ⅰ. Determination of the Chemical Oxygen Demand in Wastewater using Closed Microwave Digestion The traditional method to determine the chemical oxygen demand (COD) in wastewater is mainly by reflux method. This process is not only time-consuming but also requires a large amount of reagents. Our laboratory have reported a study about using microwave energy to determine the COD in wastewater. The previous study needs only 4 minutes to digest the sample, and AgNO3 to restrain the chloride interference. As a result, the recoveries of KHP tests are good, but not consistent for all real samples. Therefore, the goal of this study is to improve the defects of previous process. Using microwave power 712.6W, digesting time 5minutes, and improving the reagent spiking process, the recoveries of KHP tests are above 95%. Also, two COD QC samples and a COD blind program are tested, the results are pretty well. Further more, study tested 20 samples from different sources, the results are less 10% difference to reflux method, shows the application of advanced process to real sample test. Ⅱ. Decomposition of the PCBs in Soil Using Microwave Energy The aim of this study is to decompose PCBs in soil by the chemical reagents and microwave energy. First, quartz sand were spiked with PCB congener (PCB-170, PCB-194, PCB-206), homogenized, divided and stored in vials. The spiked sand was placed in a Teflon vessel, followed by adding reagents and heating in a household microwave oven. The results showed that most of PCBs spiked in sand were decomposed in less than 20 minutes under microwave power 712W by adding Cu2O & NaOH & H2O or graphite & NaOH & H2O or Cu2O & NaOH. Further more, the treating efficiency of PCBs could be more than 85% by NaOH & water.
Sun, Kuo-Shu, and 孫國書. "I.A Study for the Determination of Organochlorine Pesticides in Waters by the Solid Phase Microextraction/Gas Chromatography (SPME-GC). II.Continuous Monitoring Chemical Oxygen Demand in Wastewaters by Microwave Digestion/ Spectrophotometric Method." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/87142169928476048334.
Full text淡江大學
水資源及環境工程學系
90
Ⅰ. A Study for the Determination of Organochlorine Pesticides in Waters by the Solid Phase Microextraction/Gas Chromatography (SPME-GC). The traditional extraction method (liquid-liquid extraction and solid phase extraction) was used as pretreatment in the determination of the organochlorine pesticides in water. The analytical method consisted of water removal, condensation, clean-up, rinsing, fractional distilltion for liquid-liquid extraction and filtering, elution for solid phase extraction followed by gas chromatography detection. The whole processes were complex and time-consuming. In this study, the solid phase microextraction combined gas chromatography-electron capture detector (ECD) for determination of organochlorine pesticides were presented. This analytical method is solvent free and easy to operate, with the potential that can be used to analyze a large number of samples within a short period of time (usually less than two hours). In this study, we used SPME fiber which coating 30 μm polydimethylsioxane(PDMS), and sample volume was 60 mL. The SPME experiments were designed to use mix level orthogonal array to find four optimized operation factors. The optimized factors were that adsorption time, 60 min; adsorption temperature, 25℃; desorption temperature, 230℃;and salt concentration, 5%.The fiber of SPME after adsorption were analysed by GC-ECD. The method detection limits of organochlorine pesticides were between 0.01 ng/mL and 0.02 ng/mL, and were similar to those in the reference related. The real water samples were collected from Tamshui, Taipei and Hsinchu and the results analysed by SPME-GC-ECD showed that the concentrations of organochlorine pesticides were very closed to method detection limits. Ⅱ. Continuous Monitoring Chemical Oxygen Demand in Wastewaters by Microwave Digestion/ Spectrophotometric Method. The traditional method for the determination of chemical oxygen demand (COD) in wastewater is mainly to digest the wastewater by open reflux method and the potassium dichromate as oxidant. This process is not only time-consuming but also produces a large amount of toxic waste. Therefore the goal of this study was to develop continuous and rapid determination of the COD by flow injection combined microwave digestion. We used peristaltic pump (4 channels) to sucked silver nitrate solution 1mL, potassium dichromate solution 1mL, silver sulfate solution 1 mL, sample volume 1 mL. First, a simple method for the continuous and rapid determination of the COD by flow injection with combined microwave digestion was setup. The results showed that the linearity relation R-squared for determination of the COD (concentration between 100mg/L and 500mg/L, potassium dichromate solution concentration is 0.0417M) with ferrous ammonium sulfate (FAS) titration and spectrophotometric detection were 0.9992 and 0.9806 respcetively. The detection limits for COD with FAS titration and spectrophotometric detection were 11.25 mg/L and 19.88 mg/L respectively.
LIN, JIAN-ZHONG, and 林建仲. "The study of low chemical oxygen demands determination." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/61282036066127173605.
Full textHandfield, Stéphane. "S’autodéterminer « dans la bonne direction » : enjeux éthiques et relationnels de l’accompagnement auprès de personnes catégorisées comme ayant une déficience ou des limitations intellectuelles et vivant en situation d’itinérance ou de grande précarité." Thèse, 2017. http://hdl.handle.net/1866/20364.
Full textYANG, MING-HSIEN, and 楊明賢. "Production lot size determinating procedures with probabilistic demanad pattern." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/79304046221015282550.
Full textIlten, Paul. "Ansätze für profitables Wachstum von BPO-Dienstleistern: Marktbearbeitungsmöglichkeiten auf Basis theoretisch-konzeptioneller Ansatzpunkte zur Bedarfsermittlung." Doctoral thesis, 2014. https://slub.qucosa.de/id/qucosa%3A5711.
Full textIn this thesis it is studied how a theory-based assessment of business processes regarding their adequacy for outsourcing can be carried out and what starting points for profitable growth of Business Process Outsourcing (BPO) providers in Germany can result from the application of such a methodology. For this purpose a three step approach is taken. As a first step a theory-based concept of an assessment model to determine the adequacy of outsourcing business processes is developed. As a second step possibilities for transferring the concept of this model to real life applications are examined. In a final third step it is shown how the assessment model developed here can be used as part of the marketing activities of BPO companies to contribute to their profitable growth.:1 Einführung: Organisationen im Wandel 1.1 Problemstellung 1.2 Zielsetzung der Arbeit und wissenschaftliche Vorgehensweise 1.3 Stand der Publikationen 2 Business Processs Outsourcing: Entwicklung, Systematisierung und Definition 2.1 Entwicklung des Business Process Outsourcing 2.2 Systematisierungsansätze für die Begriffe Sourcing und Outsourcing 2.3 Definition und Abgrenzung des Business Process Outsourcings 3 Entwicklung eines theoretisch-konzeptionellen Modells zur Bedarfsermittlung an BPO-Leistungen 3.1 Grenzen der Theorieauswahl 3.2 Vorstellung ausgewählter theoretischer Ansätze 3.3 Klassifizierung von Entscheidungsmodellen 3.4 Multikriterielle Entscheidungsmodelle 3.5 Eingrenzung der theoretischen Elemente zur Entwicklung eines BPO-Entscheidungsmodells 3.6 Entwicklung eines BPO-Entscheidungsmodells 4 Ansätze zur konzeptionellen Übertragung des BPO-Entscheidungsmodells auf Praxisanwendungen 4.1 Entwicklung einer individuellen Bewertungsmethodik 4.2 Entwicklung einer Gesamtbewertungsmethodik 4.3 Zwischenfazit 5 Ansätze für profitables Wachstum von BPO-Dienstleistern 5.1 Marktbegriffe 5.2 Marketing und Marketing-Wissenschaft 5.3 Entwicklung von Marketingansätzen für BPO-Dienstleister 6 Fazit und Ausblick 6.1 Fazit 6.2 Ausblick
Ribeiro, Marta Holroyd Kendall Cruz. "Startups vs. empresas estabelecidas : a autonomia e o excesso de trabalho na motivação dos trabalhadores." Master's thesis, 2020. http://hdl.handle.net/10400.14/32877.
Full textThe present study seeks to explore the relationship between employees’ intrinsic motivation and their perception of autonomy and work overload, as well as the moderating effect of different work contexts (i.e., startups and established companies), in this relationship. Autonomy and work overload influence employees’ motivation, therefore it is relevant to assess these job characteristics, particularly in startups where employees’ perceptions have not been thoroughly studied in published literature. Data was collected through an online questionnaire, obtaining a sample of 601 respondents – 353 working in startups and 248 in established companies. As expected, the results demonstrate that autonomy positively predicts intrinsic motivation, while work overload negatively predicts it. Although it was not possible to infer that startups increase the positive relationship between autonomy and intrinsic motivation, it was possible to conclude that startups reduce the negative relationship between work overload and intrinsic motivation. The limitations of this study and its implications for future investigations were also discussed.
Wambui, Lydiah. "Interrelationship between work calling orientation, work engagement and burnout among nurses in the Namibian health care sector." Thesis, 2020. http://hdl.handle.net/10500/26886.
Full textThis research investigated work as a calling, the relationship with work engagement and the effect on burnout in the Namibian health care sector. A quantitative survey was conducted on a convenient sample of nurses (N = 261) employed by government and private hospitals in Namibia. Kendall's tau_b correlation analysis indicated a positive correlation between job/calling orientation and total work engagement, and a negative correlation with the burnout sub-dimensions of exhaustion and cynicism/ depersonalisation. The results of this study also suggest that both job/calling and work engagement are statistically related to the respondents’ positive world view, which is an important attribute for quality of life. Additionally, the study revealed that burnout had a partial mediation effect on the interaction between job/calling and work engagement. Selected demographic characteristics had a partial moderation effect on the relationship between job/calling orientation, work engagement and burnout. These findings may provide new knowledge for the design of workplace practices that assess calling orientation, and may enhance work engagement. The study provided a deepened understanding of the interrelationships between work as a calling, work engagement and burnout. On a practical level, the recommendations provided can be used by human resource management practitioners, nurse managers and health care providers to motivate health care workers to become more productive in the provision of quality health care, and to improve the management of employees throughout their employment life cycle.
In hierdie studie is werk as ʼn roeping en die verband tussen werkverbintenis en die uitwerking van ooreising in die Namibiese gesondheidsorgsektor ondersoek. ʼn Kwantitatiewe opname is onder ʼn geriefsteekproef van verpleegsters (N = 261) by private en staatshospitale in Namibië gedoen. Volgens Kandall se tau_b-korrelasieanalise is daar ʼn positiewe korrelasie tussen pos/roepingsgerigtheid en totale werkverbintenis, en ʼn negatiewe korrelasie met die ooreisingsubdimensies van uitputting en sinisme/ontpersoonliking. Die uitslag van hierdie studie dui daarop dat sowel pos/roeping as werkverbintenis statisties met die respondente se positiewe wêreldbeskouing, ʼn belangrike kenmerk vir lewenskwaliteit, verband hou. Afgesien hiervan dui die uitslag daarop dat ooreising ʼn gedeeltelike mediasie-effek op die wisselwerking tussen pos/roeping en werkverbintenis het. Die gekose demografiese kenmerke het ʼn gedeeltelik matigende effek op die verband tussen pos/roepingsgerigtheid, werkverbintenis en ooreising. Hierdie bevindings is nuwe kennis vir die ontwerp van werkplekpraktyke wat roepingsgerigtheid evalueer en dit kan werkverbintenis verbeter. Hierdie studie bied groter insig in die onderlinge verbande tussen werk as ʼn roeping, werkverbintenis en ooreising. Op ʼn praktiese vlak kan mensehulpbronbestuurders, verpleegsterbestuurders en gesondheidsorgverskaffers die aanbevelings gebruik om gesondheidsorgwerkers te motiveer sodat hulle produktiewer in die lewering van goeie gesondheidsorgdienste raak. Dit kan eweneens gebruik word om gesondheidsorgwerkers hulle hele werkslewensiklus deur beter te bestuur.
Lolu cwaningo beluphenya umsebenzi njengobizo lomsebenzi, ubudlelwano bokuzibandakanya emsebenzini kanye nomthelela wokukhathala kakhulu kwabasebenzi emkhakheni wezempilo eNamibia. Isaveyi eyencike kumanani iye yenziwa ngokuthi kuthathwe isampuli efanele yabahlengikazi (N = 261) abaqashwe yizibhedlela zikahulumeni kanye nezibhedlela zangasese eNamibia. Uhlaziyo lukaKendall lwe-tau_b luveze ubudlelwano obuhle obuphakathi kobizo/kokufundiswa umsebenzi kanye nokuzibandakanya ngokugcwele emsebenzini, kanye nobudlelwano obubi bokukhathala kwezigatshana ezincane zokudangala kanye nokwenza into ngesizathu sokuzinceda wena wedwa/ukuqeda ukuzibheka wena wedwa. Imiphumela yalolu cwaningo nayo iphakamisa ukuthi kokubili umsebenzi/nobizo lomsebenzi kanye nokuzibandakanya emsebenzini ngokwamanani kuhlobene nombono omuhle wabaphenduli bemibuzo mayelana nomhlaba, okungumthelela obalulekile kwizinga elihle lempilo. Ngaphezu kwalokho, ucwaningo luveze ukuthi ukukhathala kakhulu ngakolunye uhlangothi kunomphumela omuhle wokuxazulula kahle lapho kuhlangana khona umsebenzi/ubizo lomsebenzi kanye nokuzibandakanya emsebenzini. Izimpawu ezikhethiwe zedemografi ngakwenye ingxenye zinomthelela wozinzisa kahle ubudlelwano obuphakathi kohlelo lokungeniswa emsebenzi/obizweni lomsebenzi, kokuzibandakanya emsebenzini kanye nokukhathala kakhulu emsebenzini. Lolu lwazi olutholakele lungaletha ulwazi olusha olumayelana nedizayini yezingqubo zendawo yomsebenzi, okuyizingqubo ezihlola ukufundiswa ngobizo lomsebenzi kanti lokhu kungaqinisa ukuzibandakanya emsebenzini. Empilweni yangempela, izincomo zingasetshenziswa abasebenzi bomnyango wezokuqhashwa kwabasebenzi, abaphathi babahlengikazi kanye nabahlinzeki bezempilo ngesizathu sokukhuthaza abasebenzi bezempilo ukuba babe abasebenzi abaqotho mayelana nokunikezwa kwezinsiza zempilo zezinga eliphezulu, kanyenokuthuthukisa nohlelo lokuphathwa kwabasebenzi empilweni yabo yonke yokusebenza.
Business Management
D. Com. (Business Management)