A self tuning approach for AGC in two area thermal power systems with super conducting magnetic energy storage device
Since Superconducting Magnetic Energy Storage (SMES) unit with a self-commutated converter is capable of controlling both the active and reactive power simultaneously and quickly, increasing attention has been focused recently on power system stabilization by SMES control. In this paper investigates the self tuning control scheme for SMES is proposed and applied to Automatic Generation Control (AGC) in power system. The system is assumed to be consisting of two areas. The proposed self-tuning control scheme is used to implement the automatic generation control for load frequency control application adding to conventional control configuration. The effects of the self tuning configuration with Fuzzy Proportional Integral Controller (FPIC) in AGC on SMES control for the improvement of Load Frequency Control (LFC) is compared with that of PI controlled AGC. The effectiveness of the SMES control technique is investigated when Area Control Error (ACE) is used as the control input to SMES. The computer simulation of the two-area interconnected power system shows that the self tuning FPIC control scheme of AGC is very effective in damping out of the oscillations caused by load disturbances in one or both of the areas and it is also seen that the FPIC controlled SMES performs primary frequency control more effectively compared to PI controlled SMES in AGC control
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A study of human hip joint problems during manual material handling using soft computing systems
Importance of ergonomics study in manual materials handling rises from the prospective risks human workplace accidents and injuries. Specifically lifting the materials from one place to other, diverse activities such as pushing, pulling, lowering, and holding, turning and carrying of weights. A risk to many humans are considered to be the prime cause of hip pain, joint impairments, stress and strains, sprains, dislocation of the lumbar spine disc, hip bone fracture, joint inflammation, tear of muscle tissue, contusion, and nerves problem due to often leading activity limitation and workplace accidents. This types of activities leads to increased worker reimbursement and loss of productive man hours. About one third of all jobs in engineering, production and business involve human in Manual Material Handling work. A finite elements model analyze the stresses in human hip joints using Image processing techniques, soft computing like MAT Lab and ANSYS. The more effort is to be taken for data collection and also during finite element modeling. A biomechanical model proposes the development and optimizing the lifting posture for minimum effort. This model is used to predict the lifting capabilities of each and every individuals. Future study can be extended for loading of the muscles strength in human.
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A study on employee training with special reference to mysore industrial region-India
The present study attempts to make a descriptive research on the employee training in different industries selected for the study. It is intended to develop an understanding and to build up a theory to the extent possible, on the different aspects of employee training. The main aim of the research is to study the existing employee training practices of public and private sector industries selected by the researcher.
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A Study on Issues and Challenges of Women Entrepreneurship in India
Entrepreneurship plays an important role in the growth of Indian economy and society. And the social and economical development of women is imperative for the development of a society or Nation. Development of entrepreneurship values , culture and qualitative business development are the major prerequisites for industrial growth. Women have gradually come out of the four walls to all types of economic activities including entrepreneurship or private enterprises in India. Women empowerment through entrepreneurship has become an integral part of developmental efforts for Major three significant reasons: women development, economic growth and social stability in the society.This article talks about emphasizing on women entrepreneurs as the potentially emerging human resources in the 21st century. The primary objective of this paper is to know the problems and challenges of women entrepreneurship in India. In the 21st century womens are are no more additional resources confined to homes they are rather than the educated knowledgeable innovative part of the overall population possessing the capacity to transform economy into thriving enterprises. Findings and results from the analytical and descriptive study some recommendations will be made with a view to promoting the spirit of women entrepreneurship and helping women entrepreneurs become successful in the country.
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A Study on Medicinal Plants of Talwara Block, District Hoshiarpur, Punjab, India
The present research work was carried out in Talwara Block, District Hoshiarpur, Punjab, India to identify and to understand the uses of medicinal plants for the treatment of various ailments. The study was undertaken with the help of questionnaire and discussion method. About 100 medicinal plant species belonging to 52 families were documented. Out of 100 medicinal plants, 40 species were herbs, 13 species were shrubs, 40 species were trees, 5 species were climbers and 2 species were grasses. Leaves were the most useful part as compared to other plant parts for the treatment of various ailments. Different parts of plants such as roots, bark, leaves, seeds, flowers etc. were used in various forms like paste, decoction, powder, oil etc. to treat various ailments. 15 key informants were selected to collect the information. During research, it has been observed that the villagers were chiefly dependent on the plants as they were familiar with their use for different ailments.
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A superior eyelid and orbit localisation of MALT lymphoma. A case report at the clinical hématology department of Yopougon National Hospital.(Abidjan–Cote d’ivoire)
Non-Hodgkin's malignant lymphomas are malignant haemopathies characterized with clinical and anatomy diversity. Mycosis associated lymphoma tissue (MALT) is part of marginal zone B-cell lymphoma. The stomach is the most common site. We report in this study, a case of a 57 year old woman with no particular history who presented a right superior eyelid and orbit tumor with the exophthalmos. Context of fever noted in the progression. The immunohistochemistry of the biopsy of this tumor concludes with a MALT lymphoma. Nowadays such a case has seldom been published. After using Rituximab, cyclophosphamide, vincristine and prednisone, all the tumefactions disappeared. This case was interesting because of the rarity localisation of this lymphoma, and shows the interest of a first biopsy before any surgical excision of tumor.
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A Survey of Mobile Ad hoc Routing Protocols
Mobile Ad-hoc Networks (MANET) are self organizing network which exchange Data among themselves through single hope or multi hope. Data transfer happens in single hope whenever the destination is available within the transmission region of source, multi hope is used when destination is not available within the transmission region of source. Designing a routing protocol is a crucial issue in MANET because of dynamic topology. Active research works has been carried in the area of Ad-hoc routing protocols to address this issue. In this paper first we focus about the design challenges for routing protocols followed by a survey of various routing protocols for Ad-hoc network.
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A systematic approach and model generation for preventing phishing attacks
Phishing is one kind of Cyber crime in which phisher is doing online theft of secret information like username, password, credit card numbers etc. from the user. This type of crime growing everyday and also creates lot of social and financial issues. Such type of crime causes the direct or indirect damage to the victim. There are number of anti-phishing solution available today, yet the cases of phishing attacks cannot be removed because of several reasons. Here in this paper the model generated namely Phishing Prevention Model which explain what the causes of phishing are, how the phishing attack has been taken place and how we can prevent it using Cyber law.
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Addition of yattria partially stabilized Zirconia for reinforcement of dental porcelain
The aim of this study was to investigate the effects of addition of Yttria partially stabilized Zirconia powder to dental porcelain being incorporated in 3,5 and 7-percent by weight on some mechanical properties. The measured properties were flexural strength, modulus of elasticity, fracture toughness and hardness. Samples were prepared according to the manufacturers instructions. Zirconia powder was thoroughly mixed with the porcelain powder in the correct weight percent before use. Flexural strength, modulus of elasticity, and fracture toughness were measured using three-point bending test. The hardness was measured using a conventional microhardness tester. All data were collected and analyzed with one-way analysis of variance (ANOVA) and LSD test (p=0.05). The results indicated that the addition of 3 % and 5 % of Yttria partially stabilized Zirconia to the conventional dental porcelain powder resulted in increased flexural strength and fracture toughness of the porcelain. On the contrary, 3 % and 5 % zirconia decreased both the modulus of elasticity and hardness. In addition, 7 % zirconia decreased all tested properties. X-ray examination showed that zirconia addition increased the radiopacity of the material. It was concluded that zirconia-modified dental porcelain was stronger and tougher than the conventional unmodified ceramic.
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Adverse health effects, risk perception and pesticide use behavior
The use of pesticides on the farm is largely governed by voluntary behavior. It is important to understand what drives farmer’s behavior of pesticide use. Health belief models in public health and social psychology argue that persons who have had adverse health experiences are likely to undertake greater preventive behavior which is tested here. A survey of 163 farmers was drawn in Vehari and Lodhran district of southern Punjab. Almost all the farmers were found using pesticides extensively and covering their body partially. Resultantly more than 77% farmers experienced at least one health symptom. The analysis appeared to confirm the hypothesis that farmers who have experienced health problems from pesticide use are having heightened concern about health effects of pesticides than farmers who have not experienced such problems. Farmers who report experiencing such problems are also more likely to report using protective clothing than farmers who do not report having such problems. The study however, does not support the hypothesis that farmers who have had experienced health problems from pesticides are likely to use alternative pest management practices. Finally study concludes that to improve practices of pesticide use, specific and relevant information through training programs should be provided to farmers, focusing health and environmental risks of pesticide use.
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