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Search Results: 1 - 10 of 189892 matches for " Bhadreshsinh G. Gohil "
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Federated Network Security Administration Framework
Bhadreshsinh G. Gohil,Rishi K. Pathak,Axaykumar A. Patel?
International Journal of Computer Science and Mobile Computing , 2013,
Abstract: In today’s world, Internet is now ubiquitous. Most of Applications are based on Internet. Web and Internet technologies are becoming critical to many enterprises, and their huge potential in facilitatingcommunication, decision making, and better business processes makes security a major concern. The factor that most affects network security solutions is the change of computing model. Since a Web-based application typically spans multiple host machines, a solution must be user-centric instead of system-centric. Systemcentricsolutions such as login and password become extremely cumbersome to manage in the Web model. To resolve these issues it is proposed to build a framework which will streamline the process and also delegatemost of the activities to several of designated stakeholders from each group. The framework enable the users/groups to do most of the work related to public release of the Websites/web portals and other network based services on their own with the intervention from the systems administrators or network security experts coming in only towards the final steps. The framework will also support different roles. The framework requires extensive scripting in either bash or python on Linux platform to handle several of the backend tasks like implementing policy changes on the security device.
Vibrant Energy Aware Spray and Wait Routing in Delay Tolerant Network
Viren G. Patel,Tushar K. Oza,Dhavalsinh M. Gohil
Journal of Telematics and Informatics , 2013, DOI: 10.12928/jti.v1i1.875
Abstract: Delay tolerant networks (DTN) are wireless networks where disconnections arise often due to the mobility of nodes, failures of energy, the low density of nodes, or when the network extends over long distances. In these situations, traditional routing protocols that have been developed for mobile ad hoc networks prove to be unsuccessful to the scope of transmitting messages between nodes. The Spray and Wait routing may achieve low routing and energy efficiency due to the blindness in the spray phase. To deal with this situation, we propose an opportunistic routing with enclosed message copies, called the Vibrant Energy aware Spray and Wait (VESW), which utilizes the information about vibrancy of node and remaining energy to allocate the number of copies between the corresponding pair nodes in the spray phase.
The Simulation and Analysis of the Closed Die Hot Forging Process by A Computer Simulation Method
Dipakkumar Gohil
Journal of Systemics, Cybernetics and Informatics , 2012,
Abstract: The objective of this research work is to study the variation of various parameters such as stress, strain, temperature, force, etc. during the closed die hot forging process. A computer simulation modeling approach has been adopted to transform the theoretical aspects in to a computer algorithm which would be used to simulate and analyze the closed die hot forging process. For the purpose of process study, the entire deformation process has been divided in to finite number of steps appropriately and then the output values have been computed at each deformation step. The results of simulation have been graphically represented and suitable corrective measures are also recommended, if the simulation results do not agree with the theoretical values. This computer simulation approach would significantly improve the productivity and reduce the energy consumption of the overall process for the components which are manufactured by the closed die forging process and contribute towards the efforts in reducing the global warming.
A review on Bacopa monniera: Current research and future prospects
Gohil Kashmira,Patel Jagruti
International Journal of Green Pharmacy , 2010,
Abstract: In recent times, the use of herbal products has increased tremendously in the western world as well as in developed countries. Lately, one of the outstandingly important medicinal plants, widely used therapeutically in the orient and becoming increasingly popular in the west is Bacopa monniera, a well-known nootropic. The present review summarizes our current knowledge of pharmacological actions, preclinical and clinical studies, major bioactives, reported mechanisms of actions, clinical efficacy, safety and the possibility of interactions of the herb with the conventional drugs. Simultaneously, research updates as well as avenues for further research are also mentioned concerning the plant.
The Estimation of Forging Load for the Closed Die Forging Process by Computer Simulation
D. B. Gohil
Lecture Notes in Engineering and Computer Science , 2010,
Abstract:
ARM 7 Based Controller Area Network for Accident Avoidance in Automobiles
Kashyap Joshi,Vipul Gohil
Computer Science , 2014, DOI: 10.14445/22315381/IJETT-V9P212
Abstract: Based on requirements of modern vehicle, in- vehicle Controller Area Network (CAN) architecture has been implemented. In order to reduce point to point wiring harness in vehicle automation, CAN is suggested as a means for data communication within the vehicle environment. The benefits of CAN bus based network over traditional point to point schemes will offer increased flexibility and expandability for future technology insertions. This paper describes system which uses sensors to measure various parameters of the car like speed, distance from the other car, presence of alcohol in car and accidental change of lane and sends a warning signal to the driver if any of the parameter goes out of range to avoid accidents . In addition to this if accident occurs in any remote area then using bump sensor accident is detected and SMS is send immediately using GSM. A situation that provides a good example of how the system works is when a driver is about to change lanes, and there is a car in his blind spot. The sensors will detect that car and inform the driver before he starts turning, preventing him from potentially getting into a serious accident.
Synthesis and properties of SmO0.5F0.5BiS2 and enhancement in Tc in La1-ySmyO0.5F0.5BiS2
Gohil S. Thakur,G. Kalai Selvan,Zeba Haque,L. C. Gupta,S. L. Samal,S. Arumugam,Ashok K. Ganguli
Physics , 2014, DOI: 10.1021/ic5023938
Abstract: Crystal structure and properties of a new member of oxy-bismuth-sulfide SmO1-xFxBiS2 are reported here. The compounds SmO1-xFxBiS2 (x = 0.0 and 0.5) are found to be isostructural with LaOBiS2 and crystallize in the CeOBiS2 type structure (P4/nmm). Sm substitution in LaO0.5F0.5BiS2, (La1-ySmyO0.5F0.5BiS2), leads to a gradual decrease in a-lattice constant however the c-lattice constant does not show such a gradual trend. Enhancement in Tc is achieved upon partially substituting La by smaller Sm ion. Maximum Tc ~ 4.6 K was observed for composition with y = 0.8. Disobeying this trend Tc disappears unexpectedly in composition SmO0.5F0.5BiS2 (y = 1.0). Both the undoped and F-doped (x = 0.0 and 0.5) compounds are paramagnetic exhibiting semiconducting behavior down to 2 K.
Coexistence of superconductivity and itinerant ferromagnetism in Sr0.5Ce0.5FBiS2-xSex (x = 0.5 and 1.0), the first non-U material with Tc < TFM
Gohil S. Thakur,G. Fuchs,K. Nenkov,V. Grinenko,Zeba Haque,L. C. Gupta,A. K. Ganguli
Physics , 2015,
Abstract: We have carried out detailed magnetic and transport studies of the new Sr0.5Ce0.5FBiS2-xSex (x = 0.5, 1) superconductors derived by doping Se in Sr0.5Ce0.5FBiS2. Se-doping produces several effects: it suppresses semiconducting like behavior observed in the undoped Sr0.5Ce0.5FBiS2, ferromagnetic ordering temperature, TFM, decreases considerably from 7.5 K (in Sr0.5Ce0.5FBiS2) to 3.5 K and superconducting transition temperature, Tc, gets enhanced slightly to 2.9 - 3.3 K. Thus in these Se-doped materials, TFM is just marginally higher than Tc. Magnetization studies provide an evidence of bulk superconductivity in Sr0.5Ce0.5FBiS2-xSex. Quite remarkably, as compared with the effective paramagnetic Ce-moment (~ 2.2 muB), the ferromagnetically ordered Ce-moment in the superconducting state is rather small (~ 0.1 muB). To the best of our knowledge, the title compounds are the first Ce-based superconducting itinerant ferromagnetic materials (Tc < TFM). We stress that Ce-4f electrons are responsible for both superconductivity and ferromagnetism just as U-5f electrons are in UCoGe. Furthermore, a novel feature of these materials is a dual hysteresis loop corresponding to both the ferromagnetism and the coexisting superconductivity. Such features of Sr0.5Ce0.5FBiS2-xSex put these materials apart from the well known U-containing superconducting ferromagnets reported so far.
Investigation of magnetic and transport properties of La1-xSmxO0.5F0.5BiS2 (x=0.2, 0.8) superconductors under hydrostatic pressure
G. Kalai Selvan,Gohil Thakur,K. Manikandan,A. Banerjee,Zeba Haque,L. C. Gupta,Ashok Ganguli,S. Arumugam
Physics , 2015,
Abstract: We have investigated the pressure effect on the newly discovered samarium doped La1-xSmxO0.5F0.5BiS2 superconductors by resistivity (~1.96 GPa) and magnetization (0.8 GPa) measurements. Enhancement in Tc upto a maximum of 10.3 K with external pressure (at ~1.74 GPa, (4.08 K/GPa)) has been observed for the 20 % Sm doped composition. Beyond which Tc starts decreasing monotonously with a rate of -2.09 K/GPa. A similar positive rate of pressure coefficient is observed from the magnetization measurements (3.78 K/GPa). The 80% Sm sample does not exhibit an enhancement in Tc with application of pressure up to 1.76 GPa. The observed normal resistivity exhibited semiconducting behavior from the thermal activation energy equation it is found that the energy gap is significantly reduced with pressure. The observation of fourfold increase in Tc accompanied with improved normal state conduction under hydrostatic pressure on La1-xSmxO0.5F0.5BiS2 (x = 0.2, 0.8) superconductors calls for the attention of others working in this area.
Review of the adaptation of skeletal muscle in intermittent claudication  [PDF]
Risha Gohil, Tristan Robert Alexander Lane, Patrick Coughlin
World Journal of Cardiovascular Diseases (WJCD) , 2013, DOI: 10.4236/wjcd.2013.34055
Abstract: Background: Despite awareness about the impact of intermittent claudication (IC) on mobility, balance and quality of life; the underlying pathophysiology and alterations in muscle architecture secondary to the disease are often overlooked. This review aimed to summarize the pathophysiological muscle changes present secondary to IC. Methods: The electronic databases, Medline, EMBASE, Cinahl and AMED, were searched for studies from 1967 to August 2011. Search terms included exercise, intermittent claudication and muscle. Studies about IC which were focused on muscle histology, muscle architecture, blood flow or changes with exercise were included. Results: Of 434 studies identified, 135 unique results were found. Only 78 of these were suitable from abstract review, of which 15 were unobtainable and a further nine were identified from hand-searching references. Studies in animal models demonstrated a predominance of type II muscle fibres and an improvement in animal exercise tolerance secondary to training. Exercise alone was never able to improve distances to that of healthy controls, however a lower limb fistula along with exercise did. Lower limb blood flow was demonstrated to be affected regionally, and most evident during exercise with a prolonged return to normal in patients with IC. At a cellular level, the myocytes metabolism increased in those with IC, but returned to normal post-revascularization. Conclusion: Treatment for claudicants includes either revascularization or exercise. Successful revascularization has demonstrated a return to normal muscle metabolism; the underlying physiological improvement secondary to exercise still requires clarification.


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