Archives-December  

Power system performance is a?ected by dynamic characteristics of hydraulic governor-turbines during and following any disturbance, such as occurrence of a fault, loss of a transmission line, a rapid change of load or hydraulic transients. Accurate modeling of hydraulic governor-turbines is essential to characterize and diagnose the system response during an emergency. In this paper, the identification/development and implementation of hydraulic systems in power plants via literature survey and computer based simulations have been described and it has been analyzed with comparing different models. This article examines the responses of different models through simulation in MATLAB/SIMULINK. The results obtained provide an insight into the interaction between electrical and hydraulic system of hydro power plant governed by di?erent governor settings, so that the system may remain unaffected during any disturbance.

This paper presents an improvement method for future smart electricity grid performance using high efficiency solar cells. The smart grid offers several advantages for the connection of solar (renewable) energy sources to provide an efficient operation and better performance of the power systems. Finite-difference time domain (FDTD) method is employed to simulate the light transmission, reflection and absorption of high efficiency solar cell structures. Simulation results show that the reflection loss is reduced with the use of nanostructures compared with the flat type substrates. Therefore, the proposed solar cells will inject more energy into the electricity grid and hence improving the overall system performance.

Nano-crystallite LiFePO₄ cathode material has been prepared by polyol technique. The crystalline structure, functional group vibration analyses of the prepared cathode material were characterized by X-ray diffraction (XRD), Fourier transfer infrared spectroscopy (FT-IR) and Raman Studies. The surface morphology of synthesized material has been studied by scanning electron microscopy (SEM) and the compositional analysis has also been carried out through EDX analysis. It is inferred from XRD result that LiFePO₄ powder have an orthorhombic structure with a space group of Pmna. The magnetic properties of the fine particles of LiFePO₄ were examined by vibrating sample magnetometer (VSM) at room temperature, which showed that the prepared sample exhibited a tiny hysteresis loop with the coercivity of 401.81 G.

Thyroid hormones has profound effects of lipid metabolism and carbohydrate homeostasis . Abnormalities in serum lipids and lipoproteins are frequent findings in thyroid dysfunction, mainly in hypothyroidism. Impaired glucose tolerance and insulin resistance have been documented in patients with thyroid dysfunction. In addition, thyroid hormones are remarkable regulators of energy metabolism, being the adipose tissue the largest fuel storage compartment. Furthermore, thyroid hormones share some physiological actions with adiponectin, such as reduction of body fat by increasing thermogenesis and lipid oxidation .However, a few number of studies have found low adiponectin levels in hypothyroid subjects (Díez and Iglesias, 2009). Cortisol excess in man is characterized by abdominal obesity, hypertension, glucose intolerance or diabetes and dyslipidemia. All these features share a state of insulin resistance, and contribute to high cardiovascular risk typical of this condition. Glucocorticoids negatively regulate adiponectin mRNA in human visceral adipose tissue. Cortisol counteracts the action of insulin at multiple sites, and increases hepatic gluconeogenetic efficiency (Fallo et al.,2004). Study the relationship between adiponectin with thyroid hormones and cortisol for both gender and for both control and diabetic groups also in diabetic patients according to duration of disease. This study was conducted between November 2010- November 2012 and, it was carried out at the diabetic Centre / Merjan Teaching Hospital in Babel Province by taking 120 diabetic patients(Type II DM) (60 male and 60 female) with disease duration (0-5),(>5-10 )and (>10 )years ,with age average (30-65 year)and most of them were on oral hypoglycemic drugs. While the study included 40 people apparently healthy that included 20 male and 20 female with age average (30-65 year).

Some new chalcones, 2-4 bis (tetrahydro - 1,4-oxazine)-6-[4'-{3''-(substituted phenyl) -2''-propenon-1''-yl} phenyl amino]-s-triazine (6a-f) have been achieved by the reaction between 2-4-(bis- tetrahydro- 1,4-oxazine) -6-(4'-acetylphenylamino)-s-triazine (5) and different aromatic aldehydes, which on cyclisation with hydrazine hydrate in presence of acetic acid give acetyl pyrazolines (7a-f). Chalcones (6a-f) on cyclisation with guanidine hydrochloride in presence o f alkali give aminopyrimidines (8a-f). The characterization of newly synthesised compounds has been done on the basis of IR, 1H NMR spectral data as well as elemental analysis. All the synthesised compounds have been screened for their antimicrobial activity.

Drugs normally synthesized to use as medication to treat diseases like cancer and microbial infections, these synthesized drugs were interested more than naturally-derived drugs which have been shows low activity or not as efficient against diseases. A new ligand 3-methylbenzyl (2Z)-2-[1-(pyridin-4-yl)ethylidene]hydrazine carbodithioate (PE3MBC) and its Cd(II), Cu(II), Co(II) and Zn(II) metal complexes. The new ligand and metal complexes were characterized via various physico-chemical and spectroscopic techniques. Cd(II) complex show more activity against microbes and against cancer cell line MCF-7, while other complexes does not shows activity like cadmium complex, all the complexes does not shows any activity against MDAMB-231 cell line. The fatal of the cancer and the microbes cell was due to inhibition of DNA synthesis which was probably due to chelating with metals complexes, or could be referred to lipophilicity, presence of hydrophobic moiety in the complex molecule, also could be due to steric effects and electronic effects.

This paper aims to provide a portrait of female entrepreneurship in Tunisia to raise difficulties in the Proceedings of the creation and management of enterprises created by women. And, through the description of the characteristics of women entrepreneurs and leaders of their companies. The data analysis of the study was done using the SPSS software relying.Through this study, we identified key factors that promote the growth of women's entrepreneurship.

Titles are multi-layered and functional in nature. In the recent years, the academic field of titrology has paid particular attention to the analysis of titles from different scopes, but research on the translation of titles has been very limited, especially in the context of Persian language. This study has addressed structural differences and generic peculiarities of book titles and investigates the translation methods adopted by Iranian translators. To this aim 180 English book titles and their translations were analyzed according to the methodology proposed by Nord (1995) and their translation strategy is categorized according to Vinay-Darbelnet's model of translation strategies. The results showed Iranian translators' preference of direct translation methods, while indirect strategies were applied where generic conventions and cultural differences imprinted structural and lexical shifts.

This study investigated the impact of relationship marketing orientation on customer loyalty among undergraduate students focusing on students in Ajayi crowther university Oyo, University of Ibadan and the Polytechnic, Ibadan. The study aimed at determining whether bonding, trust and communication jointly and independently predicted customer loyalty. The study also ascertained the significant difference between communication and perceived customer loyalty and it also examined the significant relationship between bonding and perceived customer loyalty. Four hypotheses were formulated and tested using regression analyses, T-test, and Pearson correlation. The finding showed that the independent variables (bonding, trust, communication, satisfaction and commitment) jointly predicted perceived customer loyalty. The result also showed that there was a significant difference between bonding and perceived customer loyalty, It was also established that there was a significant relationship between trust and perceived customer loyalty. The study also indicated that there was a significant relationship between commitment and perceived customer loyalty. Based on the findings, it was recommended that there is a need for organizations especially banks to have a good relationship with their customers so as to sustain competitive advantage. In addition, that organizations should take cognizance of their organizational structure to attract and retain qualified customers that can contribute positively to bank performance. That training and development that are directed at building enduring customer relationship should be periodically given to all employees.

Currently the residential sector in India is growing more than 26% per annum. However the efficiency of construction sector in India is very low when compared to other countries. In order to assess the current situation of planning techniques used in residential project of India, a survey is carried out in the region of Pune city. The survey indicates that there is a vast difference in the planning techniques used by construction firms depending on their sizes. The small and medium size construction firms are reluctant in using the planning tools and the focus on planning in such companies is less.