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This paper proposes a coordinated control of rotor side converters (RSCs) and grid side converters (GSCs) of variable speed doubly-fed induction generator (DFIG) based wind generation systems under unbalanced voltage conditions. The control scheme uses stator flux-oriented control for the rotor side converter and grid voltage vector control for the grid side converter. System behaviours and operations of the RSC and GSC under unbalanced voltage are illustrated. The cocoordinated control schemes manage to restore the wind turbines normal operation after the clearance of fault
Servant leadership is an issue of growing interest among scholars. Previous studies have shown that servant leadership has lead to positive behaviors which subsequently influence the individual-level outcomes.Therefore, underpinned by leader-member exchange theory (LMX) and social exchange theory, this study examined the effective of servant leadership on affective commitment among the hotel employee. Data were collected from a sample of 149 hotel employees working in Malaysia using convenience sampling. Statistical Analysis System (SAS) version 5.1 had been used in order to run the reliability analysis, frequency analysis, explaining the correlation coefficient analysis and test of hypothesized relationships among the dependent variable and the independent variables. The results of analysis confirmed that positive correlation exists between the empowerment, humility, stewardship, standing back, forgiveness, courage, accountability, authenticity and affective commitment
The open border between Nepal and India and trade dependency of nascent Nepalese economy with her economic giant neighbor would guide the attention of Nepalese policymakers to consider the transmission effect of Indian Prices on Inflation in Nepal. The study employs unique variable TradeDependency with India as inflation transmitting variable to analyze whether Inflation in Nepal is fully home-made or does Nepal borrow [significant] portion of its inflation from India. Applying Co-Integration and VECM approach of monthly time series data from the period of 2000:01 to 2013:07, our study shows strong positive long-term relationship inflation in Nepal and trade dependency with India.
During empirical sociolinguistic research this correlational study statistically compares quantitative scores of an independent variable Proficiency in English against the quantified dependent variable Rate of occurrence of deviations from Standard Sri Lankan English (SSLE) pronunciation across the 185 users of Other Varieties of Sri Lankan Englishes. The participants diversified in their first language. 100 participants had Sinhala while the first language of 85 participants was Sri Lankan Tamil. a questionnaire cum word elicitation process compiled data. The instrument consisted of 25 lexical items which gave rise to pronunciation deviations compiled from literature on Sri Lankan English. Descriptive statistics posit that there is a negative correlation between the two variables while the percentage variance explained for the correlation between the variables was a medium 9% for the Sinhala and 24% for the Tamil bilingual participants. This study concludes that other
High frequency variable oscillator is central to the construction of high speed clock for data communication. A very wide variable frequency oscillation is designed that could be used in data communication for reliable and fast data transmission. A voltage controlled oscillator in Colpitt configuration is used in the design. The design is found to be capable of producing frequencies from 800MHz to 1.5GHz for a reverse biased voltage (VR) of 0 to 25V while maintaining a good tuning flatness throughout the range. The design is found to be free from noise and frequency variations over the tuning range.
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Agriculture is an economic activity that manifests the complex relationship between natural and human resources. The growth of agriculture is prerequisite for overall development of Indian economy. It contributes significantly to the export earnings and affects the performance of other sectors of the economy through forward and backward linkages. The present paper analysis disparities in agricultural development in Aligarh district at block level during the period of 2011-12. The analysis of the study have been carried out by transforming and combining data related to various variable, (percentage of literate people to total population, percentage of agricultural workers to total workers, percentage of net sown area to total geographical area, fertilizers consumption in kg per hectare, percentage of net irrigated area to net sown area, percentage of canal irrigation to the net irrigated area, percentage of tube well irrigation to the net irrigated area, number of agricul
Urban stormwater runoff carries pollutants that collect on impervious surfaces such as oil, dirt, chemicals, and lawn fertilizers directly to receiving water bodies (surface water, seepage water and ground water), where they seriously harm water quality. This study investigated the variability of pollutant build-up parameters in five different land use types. For this purpose stormwater samples were collected from five different land use types; residential, commercial, recreational, heavy traffic and industrial, around Guwahati city, Assam (India) and analysed to measure different build-up parameter. It was found that distribution of stormwater pollutants is highly influenced by the surrounding land use type. Coefficient of variation (CV) is derived for each of the selected build-up parameters for the different land uses. Industrial land uses showed relatively higher values of CV, indicating the highly variable nature of the pollutant build-up parameters within the sa
Decision making is an important aspect of any business entity. In this paper, a new linguistic methodology is suggested in order to express the results obtained by analyzing the situations in a way that can be easily understood by non- experts users through fuzzy logic. The paper will further explain the relationship between variable through the application of fuzzy Logic. The model will be useful to understand better the system as compared to statistical results. It will also allow us to confront both kind of results considering that statistical analysis that are more discriminatory while fuzzy models show a broader vision. The model will let us understand the input variables behavior according to variations in output variables, therefore strategic planning possibilities are increased as no implementation is required. The use of decision support systems (DSS) is increasing and becoming generalized and it actually is the evolution of business computing networking
The purpose of the study was to identify the level of Stress due to menstruation cycle among physically active and non-active females in DRC College, University of Delhi. The research pattern being used was descriptive survey research comparing chosen active and non-active females. The study was delimited to the age group 20 to 25 years. By applying simple random sampling a total of 100 females (50 active + 50 non active) were selected, the physically active group consist of females doing at least 2-4 hour daily physical activity besides the daily work, whereas the non-active group consist of females with no physical activity in the daily routine. The variable for the study was stress; Adrenal Stress Questionnaire developed by Dave Hompes was used for the collection of data. The statistical techniques employed were descriptive statistics followed by independent‘t’ test. The results revealed that the active females with majority of 44% were below stress level, whereas 28