oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 72 )

2019 ( 633 )

2018 ( 727 )

2017 ( 756 )

Custom range...

Search Results: 1 - 10 of 486343 matches for " S.R.Biradar "
All listed articles are free for downloading (OA Articles)
Page 1 /486343
Display every page Item
Comparative Study of Different Routing Protocols in MANET Based on Simulation Using Ns-2
Smita Singh,S.R.Biradar
International Journal of Electronics and Computer Science Engineering , 2012,
Abstract: A mobile ad hoc network is a collection of autonomous mobile nodes that communicate with each other over wireless links. Such networks are expected to play increasingly important role in future civilian and military settings, being useful for providing communication support where no fixed infrastructure exists or the deployment of a fixed infrastructure is not economically profitable and movement of communicating parties is possible. However, since there is no stationary infrastructure such as base stations, mobile hosts need to operate as routers in order to maintain the information about the network connectivity. Therefore, in recent years, a variety of routing protocols have been proposed and several of these have been already extensively simulated or implemented as well. This paper evaluates performance of two routing protocols, Ad hoc On-demand Multi-path Distance Vector (AOMDV) and Optimized Link State Routing (OLSR) routing protocols. We perform the analysis on two different performance metrics Average delay and Packet Delivery Ratio using Load Model and Flow Model. Simulation is carried out using Ns-2.34.
Comparison and Study of AOMDV and DSDV Routing Protocols in MANET Using NS-2
Smita Singh,Shradha Singh,Soniya jain,S.R.Biradar
International Journal on Computer Science and Engineering , 2012,
Abstract: A mobile ad hoc network (MANET) is a collection of wireless mobile nodes communicating with each other using multi-hop wireless. One of the main challenges of MANET is the design of robust routing algorithms that adapt to the frequent and randomly changing network topology. A variety of routing protocols have been proposed and several of them have been extensively simulated or implemented as well. In this paper, we compare and evaluate the performance metrics of two types of routing protocols - Ad-hoc On-demand Multipath Distance Vector (AOMDV) routing protocol , which is a multipath routing protocol and Destination sequence distance vector (DSDV)routing protocol based on various simulations like varying pause time and varying maximum speed of the moving nodes.
Influence of roadside pollution on the phylloplane microbial community of Alnus nepalensis (Betulaceae)
Joshi,S.R;
Revista de Biología Tropical , 2008,
Abstract: the north eastern region of india is undergoing industrial development at a faster rate than expected. roads form the main system of transportation and communication owing to the hilly topography of the region. automobiles discharge a number of gaseous and trace metal contaminants. human activities like stone grinding, road construction and sand milling also increase the atmospheric dust and heavy metal contaminant level. these contaminants get settled on leaf surfaces at roadsides and enter in contact with phylloplane microorganisms. this study compares microorganisms on leaf surfaces of alder (alnus nepalensis (betulaceae)) on roadside and non-roadside environments. two sites dominated by alder were selected. one at a busy road intersection on the national highway no. 44 in shillong with high traffic density (8 000-9 000 heavy vehicles/day), taken as the polluted site and the other one in a forest approximately 500 m away from the roadside considered as the unpolluted site. analysis of phylloplane microorganisms, lead, zinc, copper, cadmium and sulphur was carried out from leaves. the bacterial population was higher at the unpolluted site. bacterial population showed a significant negative correlation with lead, zinc, copper, cadmium and sulphur. similarly, fungal population was higher at the unpolluted site. a total of 29 fungal species were isolated from the phylloplane of a. nepalensis (polluted site 16 species; unpolluted site 28 species). some fungal forms like mortierella sp., fusarium oxysporum and aureobasidium pollulans were dominant in the polluted site. numbers of phylloplane fungi and bacteria were significantly reduced in the polluted site. the correlation coefficient indicated a detrimental effect of metals like lead, zinc, copper, cadmium and sulphur on the microbial community of leaf surfaces. the specificity of certain fungi to the unpolluted site may be attributed to their sensitivity to pollution. the predominance of aureobasidium pollulans, fus
NEHRU'S ANTI RECESSION VACCINE HAS IMMUNED INDIA AGAINST GLOBAL RECESSION
S.R. KESHAVA
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: The US economy accounts for of the world's GDP. The dream developmentof USA was busted when the world major financial giants like Lehman Brothers, BearSterns, AIG, Merill Lynch etc. saw the unprecedented collapse of financial giants. Thelarge Banks in US according to economists and financial experts are like dead manwalking A. sober assessment of the growing mountain of losses from bad debts, measuredin today's market place would over whelm the value of the banks…and they are insolvent(Stere lohr 2009).The LPG reforms were introduced opening the doors on Indian economy. Theeconomic polices pursued by India during the past 40 years prior to July ,1991, oftendubbed as “license –control raj” was described as “mistaken polices” by Dr. ManMohan Singh who was the finance minister in the PV Narismha Rao government andinstrumental in the introduction of reforms. Some individuals even went to the extent ofhailing it as our second independence had arrived. They were happy as they thoughtLPG reforms would free India from a rapacious and domineering state. Theseindividuals were under the intoxication of opium of globalization. They had forgotten theeconomic history. But history repeats itself. India by the end of 2008 saw herself in frontof the world recession. All that state would do was either wrong nor all that market wouldwas right. The LPG not only gives you goodies but also the economic tsunami which eventhe developed world is unable to confront successfully.Nehru was right when he once said 'most of us seldom take the trouble to think.It is a troublesome and fatiguing process and often leads to uncomfortable conclusions.But crises and deadlocks when they occur have at least this advantage that they force usto think' (The Unity of India: Collected Writings, 1937-1940 (1942), p. 94) The majorimpact of recession on India will be on IT& BPO, textiles and garments, automobiles,gems and jewelry, transportation, construction and mining, Hotel, Tourism, handicraftsand leather segments. So Tomorrow depends on how the developed world reacts torecession, will it hide behind protection or go ahead with globalization.
A COMPUTATIONAL MODEL OF THE ROLE OF IONIC-LOCK INTERACTIONS IN LIGAND RECOGNITION BY THE HUMAN C3a RECEPTOR
Voleti S.R.
International Journal of Drug Discovery , 2012,
Abstract: Computational techniques such as homology modeling and molecular dynamics were used to identify novel intramolecular ionic-lock interactions among key charged residues spanning the transmembrane helices and extracellular loops of human complement C3a receptor and the synthetically prepared human C3a receptor ligand SB290157. The results shed light on the active site of the human C3aR and the arginine specificity of the ligand. A strong ionic-lock region with interactions among the charged residues R161 (R4.64), E162 (ER4.65), R340 (R5.42), K96 (K3.36), D167 (D4.70), D417 (D7.35) and H418 (H7.36) is critical for the structural integrity of human C3aR. Results of docking both the stereoisomer of SB290157 with human C3aR indicate that the active site consist of the aromatic residues F107 (F3.37), Y160 (Y4.63), F345 (F5.47), W390 (W6.48), Y393 (Y6.51) and F396 (F6.54) together with the ionic-lock region and reveal the lack of stereospecific preference of human C3aR for SB290157. The active site features of human C3aR and the proposed ligand-binding region may permit the discovery of novel antagonists for C3aR as potential therapeutic agents for conditions such as asthma.
Ethical consideration in Nuclear Medicine practice
S.R. Zakavi
Iranian Journal of Nuclear Medicine , 2010,
Abstract: The first Oath of Medical Ethics was developed in about 400 B.C. by Hippocrates. The main points in this oath was honoring the medical instructors, practicing for healthy benefit, giving no deadly medicine and abstaining from mischief and corruption as well as maintaining confidentiality with the patients. These ethical notes were discussed by following physicians. In 9th centuries the first book on medical ethics was written by Ishaq bin Ali Rahawi namely Adab-o-tabib or "Conduct of a physician". Mohammad ibn Zakariya Razi was one of Iranian physicians who has written codes for medical ethics too. Muslim, Jewish and Christian physicians have been contributed to development of ethical codes and not surprisingly, the main principles are common in all religions. These codes are completed in later centuries and medical ethics become more self-conscious subject by 18th-19th century. Although the main principles of medical ethics have not changed much during the time, our adherence to these codes appears to be waning. Also use of new technologies in medicine accompanied with economical constraints and new opportunities opened a new field for ethical codes to be tested and challenged. It seems that a gray area is also emerged in medical ethics compared to traditional black and white considerations. Rapidly evolving technologies, sharing projects, block leasing and incentives of companies for propagation of a product... are few examples. We as a nuclear medicine specialist need to review and discuss the ethical issues in new situations to prevent improper actions due to misunderstanding. In this article, different scenarios that we may encounter in day to day practice of nuclear medicine, are going to be discussed and the suggested solutions will be explained. These scenarios include; research situations, relation with other physicians, new technologies, telling the result of study to the patient, handling discrepant results, mis-administrations, Company incentives , Sharing projects and leasing blocks.
DESIGN AND IMPLEMENTATION OF ROLE BASE ACCESS CONTROL SYSTEM FOR NETWORK RESOURCES
S.R. Kodituwakku
International Journal of Engineering Science and Technology , 2010,
Abstract: Role Based Access Control is very useful for providing a high level description of access control for organizational applications. This paper proposes a role based framework that deals with security problems in an intranet environment. The proposed framework protects intranet resources from unauthorized users. The salient feature of the framework is that it allows intranet users to access only authorized resources. It consists of two kinds of role hierarchies: global role hierarchy and local role hierarchy, and two levels of permissions: server permission and object permission. They simplify the way of structuring authority and responsibility in the whole intranet and the allocation of privileges for different objects within a particular server. The proposed framework is implemented over Windows platform and tested for the validity. The test results indicated that it can successfully be used to control accessing network objects.
Influence of roadside pollution on the phylloplane microbial community of Alnus nepalensis (Betulaceae)
S.R Joshi
Revista de Biología Tropical , 2008,
Abstract: The North Eastern region of India is undergoing industrial development at a faster rate than expected. Roads form the main system of transportation and communication owing to the hilly topography of the region. Automobiles discharge a number of gaseous and trace metal contaminants. Human activities like stone grinding, road construction and sand milling also increase the atmospheric dust and heavy metal contaminant level. These contaminants get settled on leaf surfaces at roadsides and enter in contact with phylloplane microorganisms. This study compares microorganisms on leaf surfaces of alder (Alnus nepalensis (Betulaceae)) on roadside and non-roadside environments. Two sites dominated by alder were selected. One at a busy road intersection on the National Highway no. 44 in Shillong with high traffic density (8 000-9 000 heavy vehicles/day), taken as the polluted site and the other one in a forest approximately 500 m away from the roadside considered as the unpolluted site. Analysis of phylloplane microorganisms, lead, zinc, copper, cadmium and sulphur was carried out from leaves. The bacterial population was higher at the unpolluted site. Bacterial population showed a significant negative correlation with lead, zinc, copper, cadmium and sulphur. Similarly, fungal population was higher at the unpolluted site. A total of 29 fungal species were isolated from the phylloplane of A. nepalensis (polluted site 16 species; unpolluted site 28 species). Some fungal forms like Mortierella sp., Fusarium oxysporum and Aureobasidium pollulans were dominant in the polluted site. Numbers of phylloplane fungi and bacteria were significantly reduced in the polluted site. The correlation coefficient indicated a detrimental effect of metals like lead, zinc, copper, cadmium and sulphur on the microbial community of leaf surfaces. The specificity of certain fungi to the unpolluted site may be attributed to their sensitivity to pollution. The predominance of Aureobasidium pollulans, Fusarium oxysporum and Mortierella sp. in the polluted site may be due to their resistance to pollutants in roadside conditions. Rev. Biol. Trop. 56 (3): 1521-1529. Epub 2008 September 30. La región nororiental de la India está experimentando un rápido desarrollo industrial y debido a la topografía monta osa de la región, los automóviles descargan variedad de contaminantes. Actividades humanas como moler piedra y construir caminos también aumentan el polvo atmosférico y la contaminación con metales pesados. Este estudio compara microorganismos en superficies foliares del árbol Alnus nepalensis (B
Partial brood release in woodlice: A bethedging tactic?
S.R. Telford
African Zoology , 2012,
Abstract: ENGLISH ABSTRACT: In many organisms, including woodlice, juvenile mortality is unpredictable, hence female behaviours that result in a temporal spread of reproductive output would be favoured by natural selection. Observations of brood release in several species of woodlice revealed that approximately 7% of females released between two and 10 young up to 24 h in advance of their siblings. Although under laboratory conditions offspring fitness measures between precocious young and their siblings were not significant different, the tactic of partial brood release is considered as a risk avoidance or 'bet-hedging' female behaviour not previously recorded in this specialized group of Crustacea. ******** AFRIKAANSE OPSOMMING: ln baie organismes, inslui tende houtluise, is die mortaliteit onder jong diere baie onvoorspelbaar. As gevolg hiervan, sal wyfies wat hulle reproduktiewe opbrengs temporeel kan versprei, ‘n selektiewe voordeel geniet. Waarnemings op verskeie houtluisspesies het getoon dat ongeveer 7 % van diewyfies tussen twee en 10 van hulle kleintjies vrystel tot soveel as 24 h voor die res van die broeisel. Alhoewel die oorlewingspotensiaal tussen en die vroegvrygestelde klientjies en hul sibbe nie onder laboratoriumtoestande betekenisvol verskril het nie, word gedeeltelike broeiselvrystelling as 'n risikovermydingstakties beskou. Sulke gedrag is nog nie voorheen in hierdie gespesialiseerde goep van die skaaldiere beskryf nie.
′Selling′ Medical Surveillance! - Strategies to Accomplish ′Mission Impossible′
S.R. Pingle
Indian Journal of Occupational and Environmental Medicine , 2003,
Abstract:
Page 1 /486343
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.