|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Analyses of Lattice Traffic Flow Model on a Gradient Highway显示文摘The optimal current difference lattice hydrodynamic model is extended to investigate the traffic flow dynamics on a unidirectional single lane gradient highway. The effect of slope on uphill/downhill highway is examined through linear stability analysis and shown that the slope significantly affects the stability region on the phase diagram.Using nonlinear stability analysis, the Burgers, Korteweg-deVries(KdV) and modified Korteweg-deVries(mKdV) equations are derived in stable, metastable and unstable region, respectively. The effect of reaction coefficient is examined and concluded that it plays an important role in suppressing the traffic jams on a gradient highway. The theoretical findings have been verified through numerical simulation which confirm that the slope on a gradient highway significantly influence the traffic dynamics and traffic jam can be suppressed efficiently by considering the optimal current difference effect in the new lattice model. | Arvind Kumar Gupta Sapna Sharma Poonam Redhu | 2014 | Communications in Theoretical Physics2014,61,9: | 5 |
| 2 | Nonlinear analysis of traffic jams in an anisotropic continuum model显示文摘This paper presents our study of the nonlinear stability of a new anisotropic continuum traffic flow model in which the dimensionless parameter or anisotropic factor controls the non-isotropic character and diffusive influence.In order to establish traffic flow stability criterion or to know the critical parameters that lead,on one hand,to a stable response to perturbations or disturbances or,on the other hand,to an unstable response and therefore to a possible congestion,a nonlinear stability criterion is derived by using a wavefront expansion technique.The stability criterion is illustrated by numerical results using the finite difference method for two different values of anisotropic parameter.It is also been observed that the newly derived stability results are consistent with previously reported results obtained using approximate linearisation methods.Moreover,the stability criterion derived in this paper can provide more refined information from the perspective of the capability to reproduce nonlinear traffic flow behaviors observed in real traffic than previously established methodologies. | Arvind Kumar Gupta Sapna Sharma | 2010 | Chinese Physics B2010,19,11: | 3 |
| 3 | 利用卫星遥感和GIS技术测定印度切蒂斯格尔地区干旱热带森林的土地利用、生物量和碳贮量(英文)显示文摘2001-2002年间,利用卫星遥感和GIS技术研究印度切蒂斯格尔邦的赖布尔地区干旱热带森林的土地利用、生物量和碳贮量情况。主要森林类型为:柚木森林、混合林、衰退森林和婆罗双树混交林。在这些不同森林类型中,立地的坡度和坡面影响森林植被类型、生物量和碳贮量。不同森林类型中,木材积蓄积量、生物量和碳贮量的变化范围分别为:35.59~64.31 m3·hm-2、45.94~78.31Mg·hm-2和22.97~33.27Mg·hm-2。混合林中每公顷的木材蓄积量、生物量和碳贮量最大,衰退森林中的最低。混合林、柚木森林、衰退森林和婆罗双树混交林的总碳量分别为8170.72 Mg、81656.91 Mg、7833.23 Mg和7470.45 Mg。蒂斯格尔邦地区干旱热带森林处于不成熟的生长阶段,且具有很强的碳回收潜力。图6表7参49。 | Arvind Bijalwan S.L.Swamy Chandra Mohan Sharma Neeraj Kumar Sharma A.K.Tiwari | 2010 | Journal of Forestry Research2010,21,2: | 3 |
| 4 | 在在印度的心血管的风险因素的地区性的变化: 印度心手表显示文摘 Cardiovascular disease(CVD) is an important cause of mortality and morbidity in India.Mortality statistics and morbidity surveys indicate substantial regional variations in CVD prevalence and mortality rates.Data from the Registrar General of India reported greater ageadjusted cardiovascular mortality in southern and eastern states of the country.Coronary heart disease(CHD) mortality is greater in south India while stroke is more common in the eastern Indian states.CHD prevalence is higher in urban Indian populations while stroke mortality is similar in urban and rural regions.Case-control studies in India have identified that the common major risk factors account for more than 90% of incident myocardial infarctions and stroke.The case-control INTERHEART and INTERSTROKE studies reported that hypertension,lipid abnormalities,smoking,obesity,diabetes,sedentary lifestyle,low fruit and vegetable intake,and psychosocial stress are as important in India as in other populations of the world.Individual studies have reported that there are substantial regional variations in risk factors in India.At a macro-level these regional variations in risk factors explain some of the regional differences in CVD mortality.However,there is need to study the prevalence of multiple cardiovascular risk factors in different regions of India and to correlate them with variations in CVD mortality using a uniform protocol.There is also a need to determine the 'causes of the causes' or fundamental determinants of these risk factors.The India Heart Watch study has been designed to study socioeconomic,anthropometric and biochemical risk factors in urban populations in different regions of the country in order to identify regional differences. | Rajeev Gupta Soneil Guptha Krishna Kumar Sharma Arvind Gupta Prakash Deedwania | 2012 | World Journal of Cardiology2012,4,4: | 3 |
| 5 | Assessment of genetic diversity in Dalbergia sissoo clones through RAPD profiling显示文摘We studied the genetic polymorphism among 29 clones of shisham (Dalbergia sissoo Roxb) belonging to different geographic regions using random amplified polymorphic DNA (RAPD) markers. Out of 30 primers used, only 20 primers generated polymorphism in amplified product. In total 232 bands were amplified with 20 primers, of which 192 (82%) were polymorphic with an average of 9.6 bands/primer. The resolving power (Rp) ranged from 2.14 (Primer 5) to 11.93 (Primer 4). Primer 4 and Primer 3 possessed high Rp value. Polymorphism information content (PIC) ranged from 0.15 (Primer 5) to 0.37 (Primer 4). Primer 4 amplified total 18 bands in 29 genotypes with PIC value of 0.37 hence; this set of primer was most informative. The similarity coefficient analysis revealed two clusters. The first cluster comprised of only 10 clones and the second major cluster comprised of 19 clones. The genetic similarity among 29 clones ranged from 25.86% (clone 10 and 235) to 100% (clone 19 and 59), suggesting a wide genetic base in shisham clones. | Meena Bakshi Arvind Sharma | 2011 | Journal of Forestry Research2011,22,3: | 2 |
| 6 | Analysis of the wave properties of a new two-lane continuum model with the coupling effect显示文摘A multilane extension of the single-lane anisotropic continuum model (GK model) developed by Gupta and Katiyar for traffic flow is discussed with the consideration of the coupling effect between the vehicles of different lanes in the instantaneous traffic situation and the lane-changing effect.The conditions for securing the linear stability of the new model are presented.The shock and the rarefaction waves,the local cluster effect and the phase transition are investigated through simulation experiments with the new model and are found to be consistent with the diverse nonlinear dynamical phenomena observed in a real traffic flow.The analysis also focuses on empirically observed twolane phenomena,such as lane usage inversion and the density dependence of the number of lane changes.It is shown that single-lane dynamics can be extended to multilane cases without changing the basic properties of the single-lane model.The results show that the new multilane model is capable of explaining some particular traffic phenomena and is in accordance with real traffic flow. | Arvind Kumar Gupta Sapna Sharma | 2012 | Chinese Physics B2012,21,1: | 2 |
| 7 | Preoperative embolization of primary bone tumors:A case control study显示文摘AIM:To study the safety and effectiveness of preoperative embolization of primary bone tumors in relation to intraoperative blood loss,intraoperative blood transfusion volume and surgical time.METHODS:Thirty-three patients underwent preoperative embolization of primary tumors of extremities,hip or vertebrae before resection and stabilization.The primary osseous tumors included giant cell tumors,aneurysmal bone cyst,osteoblastoma,chondroblastoma and chondrosarcoma.Twenty-six patients were included for the statistical analysis(embolization group)as they were operated within 0-48 h within preoperative embolization.A control group(non-embolization group,n = 28)with bone tumor having similar histological diagnosis and operated without embolization was retrieved from hospital record for statistical comparison.RESULTS:The mean intraoperative blood loss was 1300 mL(250-2900 mL),the mean intraoperative blood transfusion was 700 m L(0-1400 m L)and the mean surgical time was 221 ± 76.7 min for embolization group(group Ⅰ,n = 26).Non-embolization group(group Ⅱ,n = 28),the mean intraoperative blood loss was 1800 m L(800-6000 m L),the mean intraoperative blood transfusion was 1400 mL(700-8400 mL)and the meansurgical time was 250 ± 69.7 min.On comparison,statistically significant(P < 0.001)difference was found between embolisation group and non-embolisation group for the amount of blood loss and requirement of blood transfusion.There was no statistical difference between the two groups for the surgical time.No patients developed any angiography or embolization related complications.CONCLUSION:Preoperative embolization of bone tumors is a safe and effective adjunct to the surgical management of primary bone tumors that leads to reduction in intraoperative blood loss and blood transfusion volume. | Roushan Jha Raju Sharma Shishir Rastogi Shah Alam Khan Arvind Jayaswal Shivanand Gamanagatti | 2016 | World Journal of Radiology2016,8,4: | 1 |
| 8 | Acute renal failure following multiple wasp stings显示文摘 | Nisha Bhatta Rupa Singh Sanjib Sharma Arvind Sinnha Shiv Raja | 2005 | Pediatric Nephrology2005,,12: | 1 |
| 9 | Liver abscess in children显示文摘 | M. P. Sharma Arvind Kumar | 2006 | The Indian Journal of Pediatrics2006,,9: | 1 |
| 10 | A randomized controlled trial of prophylactic sublingual misoprostol versus intramuscular methyl-ergometrine versus intramuscular 15-methyl PGF2α in active management of third stage of labor显示文摘 | Arvind Vaid Vatsla Dadhwal Suneeta Mittal Deepika Deka Renu Misra Jai Bhagwan Sharma N. Vimla | 2009 | Archives of Gynecology and Obstetrics2009,,: | 1 |
| 11 | Poly (vinyl alcohol)-hydroxyapatite biomimetic scaffold for tissue regeneration显示文摘 | Arvind Sinha Gautam Das Binay Kumar Sharma | | Mater Sci Eng0,27,1: | 1 |
| 12 | Efficacy and Safety of Tacrolimus Versus Cyclosporine in Children With Steroid-Resistant Nephrotic Syndrome: A Randomized Controlled Trial显示文摘 | Swati Choudhry Arvind Bagga Pankaj Hari Sonika Sharma Mani Kalaivani Amit Dinda | 2009 | American Journal of Kidney Diseases2009,,5: | 1 |
| 13 | Water quality assessment of river Hindon at Ghaziabad, India: impact of industrial and urban wastewater显示文摘 | Surindra Suthar Jitender Sharma Mayuri Chabukdhara Arvind K. Nema | 2010 | Environmental Monitoring and Assessment (-)2010,,1: | 1 |
| 14 | Organic acid production and plant growth promotion as a function of phosphate solubilization by Acinetobacter rhizosphaerae strain BIHB 723 isolated from the cold deserts of the trans-Himalayas显示文摘 | Arvind G Vyas P Sharma N | | 0,,11: | 1 |
| 15 | Trans-genic increases in seed oil content are associatedwith the differen-tial expression of novelBrassica-specifictranscripts显示文摘 | Sharma Nirmala AndersonMaureen Kumar Arvind | 2008 | BMC Ge-nomics2008,9,: | 1 |
| 16 | A Systems Genetics Approach Identifies Genes and Pathways for Type 2 Diabetes in Human Islets显示文摘 | Jalal Taneera Stefan Lang Amitabh Sharma Joao Fadista Yuedan Zhou Emma Ahlqvist Anna Jonsson Valeriya Lyssenko Petter Vikman Ola Hansson Hemang Parikh Olle Korsgren Arvind Soni Ulrika Krus Enming Zhang Xing-Jun Jing Jonathan L.S. Esguerra Claes B. Wollhei | 2012 | Cell Metabolism2012,,1: | 1 |
| 17 | Maternal serum interleukin-6 and its association with clinicopathological infectious morbidity in preterm premature rupture of membranes: a prospective cohort study显示文摘 | Shilpa Gulati Swati Agrawal Chitra Raghunandan Jayashree Bhattacharya Arvind Saili Shilpi Agarwal Deepika Sharma | 2012 | Journal of Maternal-Fetal and Neonatal Medicine2012,,: | 1 |
| 18 | 基于微卫星标记的印度中部Madhya Pradesh地区疟疾强化控制和非强化控制区的斯氏按蚊基因流和种群遗传结构分析(英文)显示文摘【目的】斯氏按蚊Anopheles stephensi是亚洲东南部城市人体疟疾的主要媒介,印度12%的疟疾病例由其引起。本实验研究了印度中部Madhya Pradesh地区东北部的疟疾强化控制(EMCP)区和非强化控制(非EMCP)区斯氏按蚊的基因流。在EMCP区,由于采用了各种疟疾防控措施因而疟疾病例首先降低,但是很快回升,说明总的疟疾风险维持稳定。【方法】应用7个微卫星位点,对印度中部Madhya Pradesh地区东北部的4个EMCP区和非EMCP区采集的斯氏按蚊进行基因分型,以分析各种群参数。【结果】发现各标记在所有种群中表现出高度的多态性。在两区间未发现很大的遗传多样性。观察到EMCP区的东部种群(FST=0.0485,RST=0.1112)比非EMCP区的北部种群(FST=0.020,RST=0.0145)具有较高的遗传分化,在EMCP区和非EMCP区之间观察到较高的基因流(12.90,6.16,5.06和2.38)。RST的灵敏度高于FST,说明分化可能是由于突变而非遗传漂变引起的。【结论】本研究表明,在EMCP区和非EMCP区内以及EMCP区和非EMCP区之间存在很高的基因流。基因流水平高以及抗虫性的发展似乎是EMCP区和非EMCP区疟疾病例发生增加的重要原因。 | Arvind SHARMA Richa SHARMA Ashwani KUMAR Madhulika DUBE Surendra Kumar GAKHAR | 2015 | 昆虫学报2015,58,1: | 1 |
| 19 | A randomized controlled trial of prophylactic sublingual misoprostol versus intramuscular methyl-ergometrine versus intramuscular 15-methyl PGF2α in active management of third stage of labor显示文摘 | Arvind Vaid Vatsla Dadhwal Suneeta Mittal Deepika Deka Renu Misra Jai Bhagwan Sharma N. Vimla | 2009 | Archives of Gynecology and Obstetrics2009,,6: | 1 |
| 20 | Design and synthesis of 3,5-diarylisoxazole derivatives as novel class of anti-hyperglycemic and lipid lowering agents显示文摘 | Atul Kumar Ram Awatar Maurya Siddharth Sharma Pervez Ahmad A.B. Singh A.K. Tamrakar Arvind K. Srivastava | 2009 | Bioorganic & Medicinal Chemistry2009,,14: | 1 |