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Search Results: 1 - 10 of 324908 matches for " Harindra S Balyan "
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Orthology between genomes of Brachypodium, wheat and rice
Sachin Kumar, Amita Mohan, Harindra S Balyan, Pushpendra K Gupta
BMC Research Notes , 2009, DOI: 10.1186/1756-0500-2-93
Abstract: Comparative sequence analysis of 3,818 Brachypodium EST (bEST) contigs and 3,792 physically mapped wheat EST (wEST) contigs revealed that as many as 449 bEST contigs were orthologous to 1,154 wEST loci that were bin-mapped on all the 21 wheat chromosomes. Similarly 743 bEST contigs were orthologous to specific rice genome sequences distributed on all the 12 rice chromosomes. As many as 183 bEST contigs were orthologous to both wheat and rice genome sequences, which harbored as many as 17 SSRs conserved across the three species. Primers developed for 12 of these 17 conserved SSRs were used for a wet-lab experiment, which resolved relatively high level of conservation among the genomes of Brachypodium, wheat and rice.The present study confirmed that Brachypodium is a better model than rice for analysis of the genomes of temperate cereals like wheat and barley. The whole genome sequence of Brachypodium, which should become available in the near future, will further facilitate greatly the studies involving comparative genomics of cereals.Cereals constitute the most important group of cultivated plants, and are known to have diverged from a common paleopolyploid ancestor ~45–47 million years ago (Mya) [1]. Despite this, a remarkable overall structural and functional similarity exists among different cereal genomes [2,3], although the size of these genomes differs greatly, ranging from 430 Mb in rice (Oryza sativa) to 16,000 Mb in hexaploid wheat (Triticum aestivum). Due to its small size and availability of whole genome sequence, rice has been used as a model system for a variety of experimental studies including map-based cloning [4]. However, recent studies resolved further the dynamic changes in rice genome sequences, thus questioning the utility of rice as a model crop [5], and necessitating the need for search of a more efficient model system.Brachypodium distachyon, a small temperate grass (sub-family Pooideae) has recently emerged as a better model system for the
Resources for Development of Hindi Speech Synthesis System: An Overview  [PDF]
Archana Balyan
Open Journal of Applied Sciences (OJAppS) , 2017, DOI: 10.4236/ojapps.2017.76020
Abstract: Most of the information in digital world is accessible to few who can read or understand a particular language. The speech corpus acquisition is an essential part of all spoken technology systems. The quality and the volume of speech data in corpus directly affect the accuracy of the system. However, there are a lot of scopes to develop speech technology system using Hindi language which is spoken primarily in India. To achieve such an ambitious goal, the collection of standard database is a prerequisite. This paper summarizes the Hindi corpus and lexical resources being developed by various organizations across the country.
HIV: Past, present and future
Harindra V
Indian Journal of Sexually Transmitted Diseases , 2008,
Abstract: The origin of acquired immune deficiency syndrome (AIDS) and human immunodeficiency virus (HIV) has puzzled scientists ever since the illness first came to light in the early 1980s. For over 25 years it has been the subject of fierce debate and the cause of countless arguments. It is now generally accepted that HIV is a descendant of a simian immunodeficiency virus and there are many theories about how this ′zoonosis′ originated and how SIV became HIV in humans. Advances in treatment have steadily reduced the morbidity and mortality associated with HIV infection. However, in the low-income, high-prevalence countries, antiretroviral medication has taken a long time to reach the people who actually need it. Access to medication must greatly improve if millions of deaths are to be avoided. HIV is a preventable disease. Unless great progress is made in prevention, the number of people living with HIV will outstrip the resources available for treatment. The search for effective vaccines and microbicides must therefore be one of the very highest priorities. HIV is a global threat. Action needs to be taken to prevent it killing many more millions than those who have already died. This action needs not only to continue, but to be speeded up considerably.
Matrix Based Energy Efficient Scheduling With S-MAC Protocol in Wireless Sensor Network
Ram Kumar Singh,Akanksha Balyan
International Journal of Modern Education and Computer Science , 2012,
Abstract: Communication is the main motive in any Networks whether it is Wireless Sensor Network, Ad-Hoc networks, Mobile Networks, Wired Networks, Local Area Network, Metropolitan Area Network, Wireless Area Network etc, hence it must be energy efficient. The main parameters for energy efficient communication are maximizing network lifetime, saving energy at the different nodes, sending the packets in minimum time delay, higher throughput etc. This paper focuses mainly on the energy efficient communication with the help of Adjacency Matrix in the Wireless Sensor Networks. The energy efficient scheduling can be done by putting the idle node in to sleep node so energy at the idle node can be saved. The proposed model in this paper first forms the adjacency matrix and broadcasts the information about the total number of existing nodes with depths to the other nodes in the same cluster from controller node. When every node receives the node information about the other nodes for same cluster they communicate based on the shortest depths and schedules the idle node in to sleep mode for a specific time threshold so energy at the idle nodes can be saved.
Approach to Software Maintainability Prediction Versus Performance
Ram Kumar Singh,Akanksha Balyan
International Journal of Soft Computing & Engineering , 2012,
Abstract: The software maintainability is one of the most significant aspects in software evolution for the software product. Due to the complexity of chase maintenance demeanor, it is difficult to accurately anticipate the price and risk of maintenance afterward delivery of the software products. The value of a software system results from the interaction between its functionality and quality attribute (performance, reliability and security) and the market-place. The software maintainability is viewed considered as an inevitable evolution procedure driven through maintenance demeanor. Traditional product cost model have focused on the short term development cost of the software product. A HMM (Hidden Markov Model) is applied to simulate the maintenance demeanor demonstrated as their potential occurrence probabilities. The software metric function is the measurement of the software quality products and its measurements results of a software product existence delivered combined to from health index of the software product. When the occurrence probabilities of maintenance demeanor reach certain number which is calculate as the denotation of worsening position of software product, the software product can be considered as obsolete. The longer time, more beneficial the maintainability would be. We believe on the architectural approach to price-modeling will be able to capture these concerns so that the software can reason about the risk I the system and price of mitigating them.
Structure of Turbulence in Katabatic Flows below and above the Wind-Speed Maximum
Andrey A. Grachev,Laura S. Leo,Silvana Di Sabatino,Harindra J. S. Fernando,Eric R. Pardyjak,Christopher W. Fairall
Physics , 2015, DOI: 10.1007/s10546-015-0034-8
Abstract: Measurements of small-scale turbulence made over the complex-terrain atmospheric boundary layer during the MATERHORN Program are used to describe the structure of turbulence in katabatic flows. Turbulent and mean meteorological data were continuously measured at multiple levels at four towers deployed along the East lower slope (2-4 deg) of Granite Mountain. The multi-level observations made during a 30-day long MATERHORN-Fall field campaign in September-October 2012 allowed studying of temporal and spatial structure of katabatic flows in detail, and herein we report turbulence and their variations in katabatic winds. Observed vertical profiles show steep gradients near the surface, but in the layer above the slope jet the vertical variability is smaller. It is found that the vertical (normal to the slope) momentum flux and horizontal (along the slope) heat flux in a slope-following coordinate system change their sign below and above the wind maximum of a katabatic flow. The vertical momentum flux is directed downward (upward) whereas the horizontal heat flux is downslope (upslope) below (above) the wind maximum. Our study therefore suggests that the position of the jet-speed maximum can be obtained by linear interpolation between positive and negative values of the momentum flux (or the horizontal heat flux) to derive the height where flux becomes zero. It is shown that the standard deviations of all wind speed components (therefore the turbulent kinetic energy) and the dissipation rate of turbulent kinetic energy have a local minimum, whereas the standard deviation of air temperature has an absolute maximum at the height of wind-speed maximum. We report several cases where the vertical and horizontal heat fluxes are compensated. Turbulence above the wind-speed maximum is decoupled from the surface, and follows the classical local z-less predictions for stably stratified boundary layer.
An Optimized Parametric Approach for Improving Handover in WiMax
Naveen Kumar,Parmender Balyan,Poonam Yadav
International Journal of Soft Computing & Engineering , 2012,
Abstract: WiMAX network is one of the high speed networks that provide the high level security and reliability over the network. One of the common problems in WiMax network is the handover mechanism. Most of the chances of data loss and intrusion are during the handover process. To get the better efficiency and throughput an efficient handover mechanism is required. This paper proposes an optimized handover scheme for mobile WiMAX networks that tries to minimize packet loss during handover. With the help of simulation we will show that this scheme is more efficient then traditional handover. The proposed approach is the parametric approach where some parameters are used as the decision factor to elect the nearby base station.
Soft Computing Based TVertical Handoffs in Fourth Generation Wireless Networksexture Classification with MATLAB Tool
Ram Kumar Singh,Akanksha Balyan,Shyam Ji Gupta,Pradeep Kumar
International Journal of Soft Computing & Engineering , 2012,
Abstract: This book chapter presents a tutorial on vertical handoff methods in the evolving 4G wireless communication networks. Integration architectures for various wireless access networks are described. Then handoff classification, desirable handoff features, the handoff process, and multimode mobile terminals are discussed. A section is devoted to some recently proposed vertical handoff techniques. We propose a vertical handoff decision algorithm that determines whether a vertical handoff should be initiated and dynamically selects the optimum network connection from the available access network technologies to continue with an existing service or begin another service.
Specialized multi-disciplinary heart failure clinics in Ontario, Canada: an environmental scan
Wijeysundera Harindra C,Trubiani Gina,Abrahamyan Lusine,Mitsakakis Nicholas
BMC Health Services Research , 2012, DOI: 10.1186/1472-6963-12-236
Abstract: Background Multi-disciplinary heart failure (HF) clinics have been shown to improve outcomes for HF patients in randomized clinical trials. However, it is unclear how widely available specialized HF clinics are in Ontario. Also, the service models of current clinics have not been described. It is therefore uncertain whether the efficacy of HF clinics in trials is generalizable to the HF clinics currently operating in the province. Methods As part of a comprehensive evaluation of HF clinics in Ontario, we performed an environmental scan to identify all HF clinics operating in 2010. A semi-structured interview was conducted to understand the scope of practice. The intensity and complexity of care offered were quantified through the use of a validated instrument, and clinics were categorized as high, medium or low intensity clinics. Results We identified 34 clinics with 143 HF physicians. We found substantial regional disparity in access to care across the province. The majority of HF physicians were cardiologists (81%), with 81% of the clinics physically based in hospitals, of which 26% were academic centers. There was a substantial range in the complexity of services offered, most notably in the intensity of education and medication management services offered. All the clinics focused on ambulatory care, with only one having an in-patient focus. None of the HF clinics had a home-based component to care. Conclusions Multiple HF clinics are currently operating in Ontario with a wide spectrum of care models. Further work is necessary to understand which components lead to improved patient outcomes.
Review on Formability of Tailor-Welded Blanks
B.C. Patel,Jay Shah,Harindra Shah
International Journal on Theoretical and Applied Research in Mechanical Engineering , 2012,
Abstract: In this paper, an overall review of the different parameter affecting on formability of tailor-welded blanks process is presented so that other researchers can concentrate on same to further critical investigations in this area. Tailor-welded blanks has been widely used in automobile and aerospace application now-a-days. It is the combination of more than or equal to two sheets having different material, thickness and coatings. Efforts have been put for determining the formability of TWB by various authors. Authors have been compared various test data for formability tests of TWB analytically with the help of various software. They have compared analytical data with practical data which were carried out in early 90’s for formability test when various software were not available. The testing of data and analyzing them by generating Forming Limit Diagram (FLD) for various tests parameters carried out by Limit Dome Height (LDH) test has been being much simpler analytically rather than conducting them practically. The efforts have also been put to conduct data and to verifying them analytically for deep drawing process of formability for TWB sheets with the help of various available software codes. Future scope may include to conduct data practically and to analyzed them by varying various test parameters for deep drawing process of a cylindrical cups on a new software HYPERWORKS which is now-a-days immerging as a powerful tool for software applications due to its some key features of being more efficient and accurate than other available software codes. The analyzing process is very fast, reliable and accurate compare to other finite element code available in the market.
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