We often use a vector control for controlling of synchronous motor with permanent magnets. To get this control more effective we need to know the parameters of controlled motor. This document describes several methods, which deal with this problem and they are trying to expand them. We are talking about method uses Ohm’s law and the knowledge of motor model and method uses improved frequency analysis. The text below includes the principles of these methods and also identification verification of parameters by means of simulations on a created motor model. The final result of this work is the library of functions, which identificate on the basis on the improved frequency analysis.

The goal of this study was to explore the psychosocial aspects within the workplace of people with visual impairment, after mobility training at Optima College Pretoria. The objectives of this study were: To build up a theoretical framework by means of a literature study as well as consultation with experts on the psychosocial aspects of people with visual impairment within the workplace after mobility training at Optima College. To conduct an empirical study of the psychosocial aspects of people with visual impairment within the workplace after mobility training at Optima College. To come to conclusions and to make recommendations for improved adaptation of people with visual impairment within the workplace. This qualitative study endeavoured to answer the following research question: What are the psychosocial aspects experienced by people with visual impairment within the workplace and what are the viewpoints of supervisors and colleagues in this regard? By answering this question, the researcher aimed to document these experiences to understand the phenomenon and to make recommendations for improved adaptation within the workplace. Non-probability sampling methods were used to select the five respondents. Data was gathered by conducting interviews, using semi-structured interview schedules with five people with visual impairment, as well as a supervisor and colleague for each of the five respondents. These interviews were taped and transcribed and subsequently analysed, extracting themes as well as sub-themes. The study was feasible, as it was within the financial and practical means of the researcher. She had access to the target group and she had permission from Optima College to conduct the study, using their resources, clients and data. Five main themes emerged from the data analysis, namely: 1.The adaptation at Optima College and the experience of the training 2.Adaptation at the workplace and investments made by the employers 3.Psychosocial aspects experienced within the workplace as well as in the community 4.The experiences of the supervisor of the person with visual impairment 5.The experiences of the colleague of the person with visual impairment. From the research findings, recommendations were made on micro, macro and meso-levels. On micro-level, people with visual impairment can play a role by telling supervisors and colleagues about their needs and problems. On macro-level, recent employers of people with visual impairment can motivate other employers to employ people with visual impairment. When stigmatization as well as prejudices are removed from society, employers will be more motivated to employ people with visual impairment. On meso-level, Optima College, the South African National Council for the Blind, as well as public media, can play a leading role in publishing positive articles regarding people with visual impairment in the workplace. Optima College must continue with the training of people with visual impairment. / Dissertation (MSD (Health Care))--University of Pretoria, 2006. / Social Work and Criminology / Unrestricted

Energy poverty is defined as the lack of access of households in developing countries to modern energy sources, and their consequent reliance on solid biomass fuels for cooking. So-called “Improved stoves” have been promoted by various public and private actors since the 1970s to tackle various environmental and health challenges associated with biomass use. Impact studies of such projects are usually based on on-site surveys about the stoves’ use, and thus are extremely site-specific, and difficultly generalizable. This thesis project aims to introduce a novel approach to impact assessment of improved cooking stoves on both local energy needs and deforestation in the area. This approach will base most of its figures and assumptions on calculated energy needs rather than survey reports. This will result in a highly flexible energy model, which can be used and adapted to help decision and policy makers in their function. The area of Nyeri County, Kenya, where the author completed a one-month field study, is used throughout the thesis as a case study in order to validate the model.

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In recent years, the use of online courses has emerged as a way to quickly and easily deliver content to large numbers of trainees. In writing these courses, pharmaceutical course developers often use traditional instructional design models and techniques to design course content for online learning. But is this truly enough? Interaction design principles and practices can also be incorporated to increase the quality of learning by improving learner comprehension and retention. Using pharmaceutical content and learners, this research investigated how interaction design impacts online learning by measuring the effect of applying different graphical user interfaces. The results were surprising, as the data showed no significant improvement in retention rates between graphical treatments. However, the incorporation of graphics did slightly improve overall course satisfaction.

Syftet med följande examensarbete har varit att kartlägga och utforska vilka åtgärder som fastighetsbolag bör tillämpa eller utveckla vid ombyggnationer som uppfattas främja en förbättrad inomhusmiljö. Arbetet omfattar en kartläggning över vilka områden som fastighetsbolag bör fokusera på att förbättra vid en ombyggnation. Inklusionskriterier för fastighetsbolag och entreprenadföretag i examensarbetet har varit: att huvudbolaget eller de själva varit verksamma under minst 10 år i branschen, att företaget i dagsläget arbetar med ett utarbetat miljösystem inom företaget och/eller inom projekt samt att fastighetsbolagen ska inneha fler än 165 lägenheter och/eller kontorslokaler. Studien har tillämpat intervjuer med utvalda fastighetsbolag och entreprenadföretag samt en fallstudie med hjälp av fastighetsbolaget Diös som belyser praktiska åtgärder som uppfattas främja en förbättrad inomhusmiljö. Innehållsanalysen av intervjuerna och tillämpad fallstudie har sedan jämförts med insamlad teori vilken består av både litteratur och artiklar. Resultatet av studien presenterar de analyserade intervjuerna samt fallstudien. Slutsatsen av studien är att fastighetsbolagen kan utföra ombyggnationer som uppfattas kunna främja en förbättrad inomhusmiljö genom att effektivisera projekteringsskedet, utveckla ett styrmedel som kan generera en god dialog mellan hyresgäst och beställare samt fördela resurser inom aspekter som anses viktiga för en trivsam inomhusmiljö: termisk-, akustisk- och visuell miljö samt luftkvaliteten.

Crude oil recovery is related to surface wettability, which is controlled by crude interactions with rock surfaces. Understanding these interactions is associated with studying the complex asphaltenes that (1) are irreversibly deposited from oil-brine interfaces onto reservoir mineral surfaces, (2) are bulky super-molecules and (3) incorporate several chemical groups by stacking aromatic rings together. This is a difficult task because of varying crude oil composition, asphaltene interfacial and chemical activity, and the potential of irreversibly contaminating analytical equipment by such substances. To overcome these challenges, we split the problem into parts by studying how different mono- and poly-functional groups mimic asphaltene interaction with mineral surfaces, such as silica and calcium carbonate. The amine, carboxylate, and sulfate groups were identified as the highest potential functional groups responsible for asphaltene adsorption. Experiments included quartz crystal micro-balance with dissipation, bulk adsorption, and core samples. Adsorption tests for the mono-functional surfactants studied were fully reversible and, therefore, not representative of asphaltenes. Poly-functional compounds demonstrated irreversible adsorption, mimicking asphaltenes, through ion exchange and ion-bridging, depending on the type of functional group, chain length, mineral surface, and brine ionic composition. Poly-amines adsorb irreversibly onto silica and calcium carbonate surfaces regardless of the brine ionic composition or surface charge. However, irreversible adsorption of poly-sulfates and poly-carboxylates onto surfaces requires (1) sufficiently long chains and (2) an abundant presence of calcium ions in solution to allow ion-bringing mechanism. These findings suggest that crudes containing amine groups and long chains of carboxylates or sulfates have a higher tendency to be adsorbed onto surfaces and change wettability. This is important for designing an efficient detachment of asphaltenic oil from rock surfaces, where no complete desorption or drastic wettability change is required. The weakening of asphaltene interactions may be sufficient to induce spontaneous imbibition and consequently increase the efficiency of two-phase displacement. This work emphasizes the importance of understating crude-brine-rock interactions for the purpose of oil recovery. In summary, evaluating potential candidates for deploying enhanced oil recovery, such as low salinity waterflooding, should consider rock and crude types, as successful implementation requires “specific” properties collaborating together to enable incremental oil production

Inadequate discharge planning for individuals with chronic illnesses or injuries is associated with increased readmissions to the hospital or rehabilitation facility where the original treatments were administered. To help ensure the recovery of discharged patients and avoid readmissions, discharge planners guide medication and care processes. The rate of readmissions was high in a stand-alone rehabilitation center due to ineffective discharge plans. Patients, family members, and caregivers lacked knowledge about medications, treatments, and self-care guidelines after the patient left the facility. The purpose of this project was to ascertain the impact of improved discharge processes using the (a) IDEAL Discharge Planning Overview, Process, and Checklist; (b) the teach-back Method training for discharge nurses; and (c) the Postdischarge Rehabilitation Services Follow-Up Tool incorporating telephone calls to all participants during Weeks 1, 2, and 4 postdischarge. Lewin's theory of planned change undergirded this project. According to Centers for Medicare and Medicaid Services data, the rate of readmissions among the 50 participants was 4.4%, compared with 6% (all-facility readmission rate) during the same quarter of the prior year. Findings from this project suggest that reductions in readmissions were associated with improvements in discharge planning, training of caregivers, and the use of national tools to standardize practices in reducing readmissions. The implication of this project for positive social change is that patient-centered inpatient rehabilitation care and patient-centered care following discharge may reduce readmissions, reduce costs, improve reimbursement, and reduce deterioration of patients' conditions postdischarge.

The hot wire method, with pH and temperature sensors, was evaluated to determine its usefulness and application for cheese production automation. Coagulation of milk substrate was measured with the hot wire instrument and by four other methods: Formagraph, Brookfield®, vixcometer, Omnispec™ bioactivity monitor, and Sommer and Matsen rolling bottle method. The hot wire, using the time at maximum slope, detected coagulation before methods that measure resistance to shear, and after methods that measure light reflectance. Coagulation time was not significantly different from the industry standard rolling bottle method used by Sommer and Matsen. the hot wire instrument was also used to distinguish samples that formed curd at different rates. This was accomplished by measuring the rate of temperature change of the hot wire probe during curd formation. Milk samples of varying protein, fat, and calcium concentrations were prepared to determine if the instrument could be used to predict a consistent curd cut-point. The pH level was also adjusted, and rennet additions were varied. Coagulation was monitored simultaneously with the hot wire system and a Formagraph. All five factors (pH, calcium, fat, protein, and rennet) had significant effects on cut time estimations (CT20) on the Formagraph. Linear correlations (R2) ranging from .74 to .94 were obtained using stepwise regressions when comparing hot wire and compositional data with the Formagraph. A Formagraph was used to measure effects of calcium, pH, and rennet changes on the coagulation properties of late lactation milk. Calcium, pH, and rennet treatments significantly affected the coagulation parameters measured by the Formagraph. However, response among the poor coagulating samples to treatments to improve coagulation was sample dependent. General composition and SDS-PAGE fractionation data could not be used as an indicator of poor or good coagulability of samples. The hot wire method worked well for monitoring coagulation time and curd firming rate, but did not measure maximum curd firmness well. Curd firming rates determined from the hot wire data are acceptable for estimation of a curd cut time. Added benefits of the hot wire method for monitoring cheese manufacture are that stirring, coagulation, and healing of curd can also be measured. Therefore, the rates of change of important parameters, such as pH, temperature, and coagulation during critical processing steps, can easily be determined by a computer and displayed, printed out, or saved for future evaluation.

A substrate was developed for measuring the milk clotting strength of rennet preparations on an automatic clot-timer . The substrate contained 8 percent pasteurized skim milk solids, 1 percent chloroform, 0.3 percent 200 bloom gelatin, 0.03 M added CaCl2 and was buffered to pH 6.6 with 0.057 M cacodylic acid and 0.042 M triethanolamine. The substrate was shelf-stable for 18 days at room temperatures. It was found that rennet preparations could be standardized to within 1 percent of each other, in terms of milk clotting strength, by use of the substrate on the automatic clot-timer. The method appears to have advantages over conventional rennet standardizing procedures. The research included studies on the effect of chloroform, nonfat dry milk and CaCl2 concentrations; heat and ionizing radiation on the substrate coagulation time.