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Effect of Applied Phosphorus on the Yield and Nutrient Uptake by Soybean Cultivars on Acidic Hill Soil  [PDF]
U. C. Sharma, M. Datta, Vikas Sharma
Open Journal of Soil Science (OJSS) , 2011, DOI: 10.4236/ojss.2011.12006
Abstract: In a three years experiment, conducted on acidic soil, four varieties of soybean [Glycine max (L) Merril] were tested to see their performance under different regimes of applied Phosphorus. The highest number of pods was given by the cultivar Bragg, followed by Punjab-1, Durga and JS-89-21. A similar trend was observed in the number of filled pods. On an average, the cultivar, Punjab-1, gave the maximum harvest index, followed closely by Bragg. Both the cultivars, Durga and JS-89-21, had lower harvest index. The application of P fertilizer significantly increased the harvest index up to 60 kg·P·ha–1. The Highest yield of grains was given by the variety ‘Bragg’ (1630 kg·ha–1), followed by Punjab-1, JS-89-21 and Durga, which gave the yields of 1510, 1470 and 880 kg·ha–1, respectively. Highest N, P and K removal was found by the cultivar Bragg, followed by Punjab-1, JS-89-21 and Durga cultivars. The uptake of nutrients was significantly related to the total biomass produced by a cultivar (r = 0.8125), showing a yield predictability of 66.0%. The increase in uptake of N, P and K, respectively, with the application of 60 kg·P·ha–1 over no P was; 245.3, 159.4 and 158.3% in case of Bragg, 101.5%, 73.8% and 44.6% in case of Durga, 182.2%, 70.6% and 63.8% in case of JS-89-21 and 164.7%, 80.0% and 97.4% in case of Punjab-1. A significant increase in soil available P was found in the plots where it was applied @ 60 kg·ha–1 continuously for three years.
A hybrid theoretical Congestion Control Framework aiming to alleviate congestion and conserve energy in wireless sensor networks (WSNs)
Vikas Sharma
Indian Streams Research Journal , 2012,
Abstract: In this paper, we identify several network aspects, some of which are unique to sensor networks that affect congestion. We also study congestion symptoms, such as delay and packet loss, for different Wireless Sensor Network Congestion Types. Moreover, since congestion affects on energy consumption and fairness, these are also examined. Also very few techniques appear to adopt the approach of resource provisioning (e.g waking up nodes and 'careful'routing). Although these may just use extra resources and reroute traffic or use multiple paths they may result in high energy consumption. Based on the above research a hybrid theoretical framework of a congestion control scheme is proposed which is composed of two parts: (i) Throttle the traffic when applications' fidelity requirements are met and / or energy consumed is more than the available budget, and (ii) Increase the network resources that appear in redundancy in sensor networks using multi-path routing, or inserting more sinks, or controlling the number of sources sensing an event.
To Analyze the Performance of Power Efficient Multicasting Algorithms for Wireless Mobile Ad Hoc Networks
Vikas Sharma
Indian Streams Research Journal , 2012,
Abstract: In contrast to traditional cellular wireless networks, power capacity becomes a veryconstrained and precious resource for ad hoc networks. Many nodes may be powered bybatteries with limited lifetime, some of which may not even be rechargeable. For thosepower-constrained networks, an important issue in routing and multicasting now is toconserve as much power as possible while still achieving good link quality. However,research on multicasting with power control is mostly overlooked. How a multicastrouting algorithm can be designed to integrate with power control mechanism thereforebecomes our research interest. In this paper, taking mobility into account, a separatedistributed tree maintenance algorithm is presented, which consists of two phases:power tuning phase and tree break repair phase.
Effects of petroleum ether extract of Anacyclus pyrethrum DC. on sexual behavior in male rats
Vikas Sharma
Zhong Xi Yi Jie He Xue Bao , 2010,
Abstract: Objective: The roots of Anacyclus pyrethrum DC. (Compositae) are employed in Ayurvedic system of medicine as “Vajikaran Rasayana” — a category of drugs for vitality and virility. They are believed to have aphrodisiac action. The present investigation was undertaken to evaluate their effects on sexual behavior in male rats. Methods: Thirty-two male Wistar rats were divided into control group, testosterone group, low-dose (50 mg/kg) petroleum ether extract (PEE) group and high-dose (100 mg/kg) PEE group. PEE obtained from the roots of Anacyclus pyrethrum was administered orally to albino rats once daily, and 0.5 mg/kg (body weight) of testosterone was given intramuscularly twice weekly and served as positive control. The course of treatment was 28 days. The effects of PEE and testosterone on changes in body and accessory sexual organ weights, sexual behavior, penile erection and sexual performance were studied before treatment, after 15 and 28 days of treatment and 7 and 15 days after treatment.Results: After 28 days of treatment, PEE and testosterone had a marked influence on body and accessory sexual organ weights as compared with arachis oil. The treated male rats were more receptive and oriented towards female rats and increased precopulatory activities like licking and sniffing of female anogenitals were observed. The penile erection index was significantly increased with reduction in mount latency and intromission latency period. There were four-fold increase in mount and three-fold increase in intromission frequency in treated rats reflecting improved sexual performance. The behavioral and sexual parameters were also observed after a lapse of 7 and 15 days of discontinuance of drug treatment.Conclusion: Unlike testosterone, the PEE of Anacyclus pyrethrum shows efficacy in rats tested after the lapse of 7 and 15 days of discontinuation of treatment. This suggests that the drug has prolonged effect and capacitate the treated rats for improved sexual potential.
Simultaneous Spectrophotometric Estimation and Validation of Domperidone, Tramadol Hydrochloride and Acetaminophen in Tablet Dosage Form
Vikas Jain,Rajesh Sharma
Stamford Journal of Pharmaceutical Sciences , 2010,
Abstract: Simultaneous estimation of active ingredients in multi-component pharmaceutical products normally requires the use of separation techniques, such as HPLC, HPTLC or GC, followed by their quantitation. Presented here are two spectrophotometric methods that do not require prior separation for simultaneous estimation of three drugs; acetaminophen, tramadol hydrochloride and domperidone in a tablet formulation. Shimadzu UV 1700 capable of multi-component analysis was used for quantitation. Method A is based on the simultaneous equation and method B on the multi-component analysis. The absorption maxima of the drugs found to be at 244nm, 271.5nm and 284.5nm respectively for acetaminophen, tramadol hydrochloride and domperidone in methanol/0.1 N HCl (1:2) solvent mixture. Acetaminophen, tramadol hydrochloride and domperidone obeyed Beer's law in the concentration range of 2-22 μg/ml, 10-55 μg/ml and 30-300 μg/ml respectively. The simultaneous equation method is based on the additivity of absorbances and multi-component analysis involves recording of absorbances of standard solutions at 244nm, 250nm, 271.5nm and 284.5nm. These were processed by means of statistical calculations and results of sample solution were obtained. Result of analysis for both methods were tested and validated for various parameters according to ICH guidelines.
ROLE OF INFORMATION TECHNOLOGY IN EDUCATION OF AYURVEDA: A REVIEW
Sharma Anju,Saroch Vikas
International Research Journal of Pharmacy , 2012,
Abstract: With the growing popularity of Ayurveda worldwide, the approach towards teaching of Ayurveda needs a paradigm shift. This is to ensure that the global audience understands the concepts of the science in a language that is not alien to them. Though various steps have been initiated in this direction they haven’t been enough. The present paper cites some examples of such modern tools of learning incorporated in Ayurveda education and highlights the need for additional work to be taken up by practitioners and teachers to further enhance the global image of this ancient science. An endeavor has been made to present an overview on the role of Information technology in the education of oldest medical science. This article intends to contribute this knowledge by giving a survey of published data regarding the websites, online research journals, newsletters / databases and other gateway.
Plasma Electrophoresis and Phagocytic Index Screening of Some Indigenous Vegetables Subjected to Preclinical Models
Vikas Sharma,N Ganesh
International Journal of Phytomedicine , 2011,
Abstract: 50 % of methanolic extract Colocasia esculenta, Moringa oliefera, Luffa cylindrica, and Hibiscus esculentus were subjected to immunomodulatory activity in Swiss albino mice either sex. Mice were treated with five days of dosing of Colocasia esculenta 50 mg/kg bw, Colocasia esculenta 100 mg/kg bw, Moringa oliefera 200mg/kg bw, Moringa oleifera 400 mg/kg bw, Luffa cylindrica 100 mg/kg bw, Luffa cylindrica 200 mg/kg bw, Hibiscus esculentus 100 mg/kg bw, and Hibiscus esculentus 200 mg/kg bw. Cyclosporine (2.5 mg/kg) used as a standard reference drug for 5 days. Investigation of immunomodulator activity of these 50 % of methanolic extract of drugs to parentage of yeast digestion form 24 hours the peritoneal fluid culture and electrophoretic plasma protein band albumin, alpha 1, alpha 2, beta and gamma respectively from blood plasma were observed using parameters phagocytosis and plasma electrophoresis. Also investigated the ulcerogenic effect or any toxic effect of plant extract by histopathology study of crypt, villi and goblet cells with reference to standard drug cyclosporine. As regards these parameters, Hibiscus esculentus 100 and 200 mg/ kg bw dose, Moringa oleifera 200 and 400 mg/ kg bw dose and Luffa cylindrica 200mg/kg bw elicited a moderately significant increase in the % of yeast digestion (P < 0.001) respectively and Luffa cylindrica 100mg/kg bw significant increase in the % of yeast digestion (P < 0.01). Hibiscus esculentus showed significant dose dependent increase and Moringa oleifera decrease phagocytic activity of macrophages. Hibiscus esculentus 200 mg/ kg bw dose and Moringa oleifera 200 significantly increased (P < 0.01) the Gamma globulin.However, our present study revealed and signatured for their immunomodulator enhancing property. As in Asian subcontinent daily there vegetables are cooked and served with know and unknown of its potential function against different diseases. If there vegetables properly ruled out for their pharmacological aspect then it may add diamond in the crown of dietician which has been bother every day today life but over looked exponetentially. Keywords:- Colocasia esculenta, Moringa oliefera, Luffa cylindrica, and Hibiscus esculentus
COMPARISON OF VARIOUS NATURAL SUPERDISINTEGRANTS IN THE FORMULATION OF FAST DISSOLVING CARVEDILOL TABLET
Vikas Sharma et al
International Journal of Pharmaceutical Sciences and Research , 2012,
Abstract: In the present investigation, fast dissolving tablets of Carvedilol were formulated by using various natural superdisintegrant like Plantago ovata, Lepidium sativum, Fenugreek and Guar gum. A Direct compression method was used to prepare fast dissolving tablets containing Carvedilol as a model drug using natural superdisintegrants. Prepared formulations were evaluated for Precompression parameters such as micromeritic properties like angle of repose, %compressibility and Hausner’s ratio. Tablets were also subjected to Postcompression analysis for the parameters such as weight variation, hardness, and friability, in vitro disintegration time, wetting time, drug content and in vitro dissolution study. The results concluded that amongst all formulations, the formulation prepared with mucilage of Plantago ovata showed better disintegrating property as well as the release profile than the other used natural superdisintegrant.
Nonlinear Controllers for a Light-Weighted All-Electric Vehicle Using Chebyshev Neural Network
Vikas Sharma,Shubhi Purwar
International Journal of Vehicular Technology , 2014, DOI: 10.1155/2014/867209
Abstract: Two nonlinear controllers are proposed for a light-weighted all-electric vehicle: Chebyshev neural network based backstepping controller and Chebyshev neural network based optimal adaptive controller. The electric vehicle (EV) is driven by DC motor. Both the controllers use Chebyshev neural network (CNN) to estimate the unknown nonlinearities. The unknown nonlinearities arise as it is not possible to precisely model the dynamics of an EV. Mass of passengers, resistance in the armature winding of the DC motor, aerodynamic drag coefficient and rolling resistance coefficient are assumed to be varying with time. The learning algorithms are derived from Lyapunov stability analysis, so that system-tracking stability and error convergence can be assured in the closed-loop system. The control algorithms for the EV system are developed and a driving cycle test is performed to test the control performance. The effectiveness of the proposed controllers is shown through simulation results. 1. Introduction In recent years due to stricter emission standards and global fuel supply issues, researchers in the automobile industry are paying more attention to zero-polluting electric vehicles (EVs) for energy conservation and environmental protection. EV has emerged as a promising alternative to improve fuel economy while meeting the tightened emission standards [1]. EV is used in many applications, particularly for the purpose of patrolling and other short-range transportations. A lot of work has been reported in the literature for reducing the cost, extending the driving range, and sophisticated energy management strategies to improve the performance and usage of energy [2–6]. Direct current (DC) power is supplied from the battery, and therefore EVs driven by DC motor are a favorable selection. The control of DC motor is simple and it can provide comparatively larger startup torque. In addition to the primary function of propulsion, the DC motor can also be used effectively as the braking device because of its fast torque response characteristics and capability of regeneration [7, 8]. The dynamics of EV are inherently nonlinear and it is well known that nonlinear control techniques are superior to the conventional linear control methods [9, 10]. The performance of nonlinear control techniques, specifically, the differential-geometric approach, to the control of EV is presented in [11]. Due to the complex operating conditions of EV, intelligent or fuzzy control is suggested in [12, 13]. In [12], the fuzzy logic controller (FLC) is modeled to be capable of increasing the
Materialism, Fashion Involvement, Fashion Innovativeness and Use Innovativeness: Exploring Direct and Indirect Relationships  [PDF]
Vikas Gautam, Vikram Sharma
Theoretical Economics Letters (TEL) , 2018, DOI: 10.4236/tel.2018.811158
Abstract: The objective of the current study was to examine the direct and indirect impacts of materialism on use innovativeness in case of fashion products among Indian consumers. An empirical study was conducted to test these relationships with 282 respondents comprised of 59 percent males and 41 percent of females. Proposed conceptual study model was tested with the help of higher order structural equation modeling by using IBM AMOS 21.0. We confirmed full mediation of fashion involvement in the relationship between materialism and use innovativeness. Furthermore, our study results found full mediation of fashion innovativeness in the relationship between materialism and use innovativeness. On the other hand, materialism had a direct significant negative impact on use innovativeness in case of fashion products. We strongly recommend to the fashion product marketers to highlight the concept of use innovativeness in the entire marketing mix for better business prospects.
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