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Search Results: 1 - 10 of 327520 matches for " S.Chandrashekhar Reddy "
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Reliability Improvement of Distribution System: A Hybrid Approach Based on GA and NN
S.Chandrashekhar Reddy,P.V.N. Prasad,A.Jaya Laxmi
International Journal of Soft Computing & Engineering , 2013,
Abstract: Due to high power demand, modern utilities are continuously planning the expansion of the electrical networks. One of the methods used for the expansion of electrical networks is connecting distributed generator (DG) in the distribution system. The main function of DG is to generate power based on the load condition or any fault occurs in the electrical network. By connecting DG in the distribution system, the power demand of the system can be satisfied and also it improves the reliability of the electrical network. The major problem in DG is, identifying the optimal location for fixing DG in the system and also computing the optimal number of DG to be connected in the system. By considering the abovementioned problem, here a hybrid technique is proposed, which includes genetic algorithm and neural network to identify the optimal number & location of DG to be connected in the system. The proposed method also computes the amount of power to be generated by each DG for various load conditions. By connecting DGs, the number of generators in the network increases and so that different generator states are possible for a particular load condition. From the possible generator states, the best state is selected based on some reliability parameters. Here, the reliability parameters that are considered for identifying the best generator states are loss of load probability (LOLP), loss of load expectation (LOLE), expected energy not supplied (EENS) and system expected outage cost (ECOST). The above reliability parameters are computed for different load conditions and also for the optimal number of DG identified using the proposed method. By using this method, the best generator state for different load conditions and also for different number of generators is computed. The result obtained shows the development in system reliability due to connecting optimal number of DG in the system.
Patil Chandrashekhar B,Reddy Suyodhana,Kulkarni Upendra,Patil Baswaraj S
International Journal of Research in Ayurveda and Pharmacy , 2011,
Abstract: In the present invention Fast dissolving tablets of Tizanidine were prepared for the immediate and effective treatment of muscle spam by adopting sublimation method. Formulations were evaluated for precompressional parameters such as angle of ripose, % compressibility and hausner’s ratio. Tablets were also subjected to post compress ional analysis for the parameters like hardness, friability, thickness, wetting time, water absorption ratio ,in-vitro disintegration time and in-vitro dissolution study. The results obtained showed that quantity of camphor is significantly affecting the response variables. Stability study carried out as per ICH guidelines for three months and results reveled that upon storage disintegration time of tablets decreased significantly(p<0.05)
Irrigated Area Maps and Statistics of India Using Remote Sensing and National Statistics
Prasad S. Thenkabail,Venkateswarlu Dheeravath,Chandrashekhar M. Biradar,Obi Reddy P. Gangalakunta,Praveen Noojipady,Chandrakantha Gurappa,Manohar Velpuri,Muralikrishna Gumma,Yuanjie Li
Remote Sensing , 2009, DOI: 10.3390/rs1020050
Abstract: The goal of this research was to compare the remote-sensing derived irrigated areas with census-derived statistics reported in the national system. India, which has nearly 30% of global annualized irrigated areas (AIAs), and is the leading irrigated area country in the World, along with China, was chosen for the study. Irrigated areas were derived for nominal year 2000 using time-series remote sensing at two spatial resolutions: (a) 10-km Advanced Very High Resolution Radiometer (AVHRR) and (b) 500-m Moderate Resolution Imaging Spectroradiometer (MODIS). These areas were compared with the Indian National Statistical Data on irrigated areas reported by the: (a) Directorate of Economics and Statistics (DES) of the Ministry of Agriculture (MOA), and (b) Ministry of Water Resources (MoWR). A state-by-state comparison of remote sensing derived irrigated areas when compared with MoWR derived irrigation potential utilized (IPU), an equivalent of AIA, provided a high degree of correlation with R2 values of: (a) 0.79 with 10-km, and (b) 0.85 with MODIS 500-m. However, the remote sensing derived irrigated area estimates for India were consistently higher than the irrigated areas reported by the national statistics. The remote sensing derived total area available for irrigation (TAAI), which does not consider intensity of irrigation, was 101 million hectares (Mha) using 10-km and 113 Mha using 500-m. The AIAs, which considers intensity of irrigation, was 132 Mha using 10-km and 146 Mha using 500-m. In contrast the IPU, an equivalent of AIAs, as reported by MoWR was 83 Mha. There are “large variations” in irrigated area statistics reported, even between two ministries (e.g., Directorate of Statistics of Ministry of Agriculture and Ministry of Water Resources) of the same national system. The causes include: (a) reluctance on part of the states to furnish irrigated area data in view of their vested interests in sharing of water, and (b) reporting of large volumes of data with inadequate statistical analysis. Overall, the factors that influenced uncertainty in irrigated areas in remote sensing and national statistics were: (a) inadequate accounting of irrigated areas, especially minor irrigation from groundwater, in the national statistics, (b) definition issues involved in mapping using remote sensing as well as national statistics, (c) difficulties in arriving at precise estimates of irrigated area fractions (IAFs) using remote sensing, and (d) imagery resolution in remote sensing. The study clearly established the existing uncertainties in irrigated area estimates and indicates that both remote sensing and national statistical approaches require further refinement. The need for accurate estimates of irrigated areas are crucial for water use assessments and food security studies and requires high emphasis.
The Impact of Gender on development of big five (OCEAN) personality factors (Openness to Experience,Concientiousness, Extroversion,Agreeableness and Neuroticism )
Chandrashekhar S Gawali
Indian Streams Research Journal , 2012,
Abstract: Gender is one of the core aspects of human development that plays a profound role in shaping people and continues to impact throughout life. It also determines social status and roles played by individual in family and society. Further as we strive to reach an understanding of individuals through their personality, the role of gender in personality formation becomes evident. Unfortunately society blindly accepts adjectives associated with masculinity such as strong, rational, prudent, active, objective and femininity as weak, irrational, impulsive, passive, subjective, which is the indicator gender discrimination and bias existing in society. In addition decisions related to education, career, marriage and personal life have root in gender and gender wise personality adjustments are made regarding the same.
Occurrence of disabling myopathy secondary to hypovitaminosis D
S Chandrashekara,Utkarsha Chandrashekhar Narone
Internet Journal of Rheumatology and Clinical Immunology , 2013,
Abstract: We report a case of severe proximal muscle weakness caused by vitamin D deficiency. Hypovitaminosis D myopathy (HDM) is often misdiagnosed, as the symptoms are non-specific. However, the disease is easily treatable and complete recovery is possible if diagnosed on time.
On Heegner points of large conductors
Chandrashekhar Khare,C. S. Rajan
Mathematics , 2000,
Abstract: Given a parametrisation of an elliptic curve over Q by a Shimura curve, we show that the images of almost all Heegner points are of infinite order. For parametrisations of elliptic curves by modular curves this was proven earlier by Nekovar and Schappacher by a different method.
The density of ramified primes in semisimple p-adic Galois representations
Chandrashekhar Khare,C. S. Rajan
Mathematics , 2000,
Abstract: We prove that the density of ramified primes in semisimple p-adic representations of Galois groups of number fields is 0. Ravi Ramakrishna has produced examples of such representations that are infinitely ramified.
Low Temperature Electrical Transport in Double Layered CMR Manganite La1.2Sr1.4Ba0.4Mn2O7  [PDF]
Y.S. Reddy, P. Kistaiah, C. Vishnuvardhan Reddy
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24B014
Abstract: The electrical transport behavior and magnetoresistance (MR) of a polycrystalline double layered manganite La1.2Sr1.4Ba0.4Mn2O7, synthesized by the sol-gel method, are investigated in the temperature range 4.2 K - 300 K. The sample exhibits an insulator-to-metal transition at 87 K (TIM) and the spin-glass (SG)-like behavior is observed below 50 K (TSG). The transport behavior is analyzed in the entire temperature range considering three different regions: paramagnetic insulating region (T>TIM), ferromagnetic metallic region (TSG < T < TIM) and antiferromagnetic insulating region (TSG) by fitting the temperature dependent resistivity data to the equations governing the conduction process in the respective temperature regions. The results show that the conduction at T>TIM follows Mott variable range hopping (VRH) process, while the two-magnon scattering process is evidenced at TSG < T < TIM which is suppressed with the applied magnetic field of 4 T. The low temperature conductivity data are also fitted with Mott VRH equation. The sample exhibits a large MR (≈45%) over a temperature range     5 K – 50 K and it shows ≈32% MR at 5 K with a magnetic field of 0.5 T.
Magneto Convective Flow of a Non-Newtonian Fluid through Non-Homogeneous Porous Medium past a Vertical Porous Plate with Variable Suction  [PDF]
S. Harinath Reddy, M. C. Raju, E. Keshava Reddy
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.42031
Abstract: Radiation absorption and chemical reaction effects on unsteady MHD free convective flow of a viscoelastic fluid past a vertical porous plate in the presence of variable suction and heat source is considered. A uniform magnetic field is assumed to be applied in the transverse direction of the flow. The set of non-linear partial differential equations is transformed into a set of ordinary differential equations by super imposing a solution with steady and unsteady part. The set of ordinary differential equations is solved by using regular perturbation scheme. The expressions for velocity, temperature and species concentration fields are obtained and the expressions for Skin friction, Nusselt number and Sherwood number are also derived. The effects of numerous physical parameters on the above flow quantities are studied with the help of graphs and tables.
Phthiriasis palpebrarum
Reddy S
Indian Journal of Ophthalmology , 1980,
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