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| 1 | 回线源瞬变电磁法有限体积三维任意各向异性正演及分析显示文摘目前,瞬变电磁法(TEM)数据基本都是基于各向同性模型进行反演解释,这对于存在明显电性各向异性的勘探区域会产生较大的反演解释误差.为分析电各向异性对回线源瞬变电磁信号的影响方式与程度,本文通过求解离散化的全张量电导率时间域Helmholtz方程,实现了基于有限体积法的TEM任意各向异性的三维正演算法.该算法采用基于交错网格的拟态有限体积法(MFV)对时域Maxwell方程组进行空间域离散,并利用后退欧拉算法(Backward Euler Method)进行时间域离散.为提高时域电磁场的求解精度与效率,该算法将时间分段等步长算法与方程直接求解法相结合.通过对一维各向异性模型以及三维复杂各向同性模型进行测试,验证了本算法对于回线源瞬变电磁响应计算的正确性及有效性.最后,通过对几类典型电各向异性介质中大回线源瞬变电磁信号响应的分析,总结了不同电各向异性类型对TEM电磁信号的影响模式,结果表明,主轴各向异性情况下TEM信号主要受水平方向电导率的影响,倾斜各向异性对TEM信号的影响程度远大于水平各向异性,而通过水平各向异性信号能较清晰判断出各向异性主轴方向. | 刘亚军 胡祥云 彭荣华 Pritam Yogeshwar | 2019 | 地球物理学报2019，62，5： | 13 |
| 2 | WISE USE OF WETLAND FOR SUSTAINABLE LIVELIHOOD THROUGH PARTICIPATORY APPROACH:A CASE OF ADAPTING TO CLIMATE CHANGE显示文摘The facts showed that the number of unemployment people is increasing and a large part of them live in the low-lying areas to be facing the challenge from impacts of climate change. So adaptive capacity of the poverty level for sustainable livelihood in vulnerable wetlands is related to coping with local climate change. This paper focuses on soil-less agriculture (Hydroponics) as an alternative source of livelihood means for the communities having no lands for cultivation. Approximately half of Bangladesh is covered with wetlands. The prospect of enormous productivity lies in the development of wetland resources. The soil-less agriculture is an indigenous practice in the middle of southwestern part of Bangladesh. The people who lives within the wetland ecosystems uses locally available paddy straws, water hyacinths and various invasively aquatic plants for making the floating mat or organic bed on which crops, vegetables and seedlings are grown. The productivity of this farming system is much higher than that of terrestrials agricultural and the system can support fisheries of open water. The compost generated from organic refuse bed is a kind of enriched nutrient and can act as a soil conditioner. It would be a major source of nutrients in aquaculture as well. The system is capable to ensure more agriculture production by restoring wetlands from aquatic invasive plant. In addition, the technology included of the system is friendly to ecosystem of wetlands. | Haq A H M Rezaul Tapan Kumar Ghosal Pritam Ghosh M Aminul Islam | 2005 | 湿地科学2005，3，3： | 4 |
| 3 | Load shedding strategy coordinated with storage device and D-STATCOM to enhance the microgrid stability显示文摘Recently microgrids have drawn a potential attraction by fulfilling the environmental demands and the increasing energy demands of the end-users. It is necessary to focus on various protection and control aspects of a microgrid. During the transition between the grid-following and grid-forming modes, the voltage and the frequency instability due to the power mismatch condition becomes the major point of concern. Therefore, the paper executes a frequency-active power and voltage-reactive power drooping control strategy for the precise power-sharing among the distributed power generators. Furthermore, to handle the power deficit scenarios and to maintain the system stability, a system independent and priority-based adaptive three-stage load shedding strategy is proposed. The sensitivity of the strategy depends on the system inertia and is computed according to the varying absolute rate-of-change-of-frequency. The strategy incorporates the operation of battery storage system and distributed static compensator (D-STATCOM) in the microgrid, to provide a reliable power supply to the customers for a considerable time instead of a sudden load shedding. The effectiveness of the proposed strategies is investigated on a scaled-down modified IEEE 13-bus microgrid system on the podium of MATLAB 2015b through the time-domain simulation. | Sheetal Chandak Pritam Bhowmik Pravat Kumar Rout | 2019 | Protection and Control of Modern Power Systems2019，4，1： | 3 |
| 4 | Do we really need to repair the pronator quadratus after distal radius plating?显示文摘Purpose:Fractures of distal radius are one of the common orthopaedic injuries.Placing the plate on volar surface requires release of underlying pronator quadratus(PQ)muscle.No consensus is present in the literature about the repair or not of the PQ.The purpose of this study was to evaluate the influence of PQ repair on functional outcome and complications.Methods:Retrospectively 83 patients of distal radius fractures managed with volar plating between 2014 and 2016 were evaluated.Demographic data,operative notes and physical therapy records were retrieved.Patients were divided into group A where PQ repair was done and group B where no repair was done.Functional data such as range of motion(ROM),grip strength,visual analogue scale(VAS)score and disabilities of arm,shoulder and hand(DASH)score at 4 weeks,3 months,6 months and finial follow-up were retrieved.Results:Totally 63 patients(n=29 in group A and n=34 in group B)with the mean age of 51.64 years were examined.Patients were followed up for a mean of 35.2 months(range 27.2-47.1 months)in group A and 38.6 months(range 28.6-51.0 months)in group B.Though functional outcome of the affected limb was not significantly different between two groups after 3 months,PQ repair did affect the recovery at an early stage.Repair group had significantly better ROM(p=0.0383)and VAS score at 4 weeks(p=0.017)while grip strength(p=0.014)was significantly better at 3 months.Conclusions:Repair of PQ may provide pain relief and increased ROM in early postoperative period and hence every attempt should be made to achieve the repair. | Subodh Pathak Rashid Anjum Rakesh Kumar Gautam Pritam Maheshwari Jatin Aggarwal Aryan Sharma Vineet Pruthi | 2019 | Chinese Journal of Traumatology2019，22，6： | 3 |
| 5 | Large-signal characterization of DDR silicon IMPATTs operating in millimeter-wave and terahertz regime显示文摘The authors have carried out the large-signal characterization of silicon-based double-drift region(DDR) impact avalanche transit time(IMPATT) devices designed to operate up to 0.5 THz using a large-signal simulation method developed by the authors based on non-sinusoidal voltage excitation.The effect of band-to-band tunneling as well as parasitic series resistance on the large-signal properties of DDR Si IMPATTs have also been studied at different mm-wave and THz frequencies.Large-signal simulation results show that DDR Si IMPATT is capable of delivering peak RF power of 633.69mW with 7.95% conversion efficiency at 94GHz for 50% voltage modulation,whereas peak RF power output and efficiency fall to 81.08 mW and 2.01% respectively at 0.5 THz for same voltage modulation.The simulation results are compared with the experimental results and are found to be in close agreement. | Aritra Acharyya Jit Chakraborty Kausik Das Subir Datta Pritam De Suranjana Banerjee J.P.Banerjee | 2013 | Journal of Semiconductors2013，34，10： | 2 |
| 6 | Study of friction stir processing (FSP) and high pressure torsion (HPT) and their effect on mechanical properties 显示文摘 | Hans Raj K Rahul Swamp Sharma Pritam Singh | 2011 | Procedia Engineering2011，10，： | 1 |
| 7 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces 显示文摘 | Pritam S Sukhija D L Palmquist | 1988 | Journal of Agricultural and Food Chemistry1988，36，6： | 1 |
| 8 | Density Func- tional Theory and Molecular Dynamics Simulation Study on Corrosion Inhibition Performance of Mild Steel by Mercapto-Quinoline Schiff Base Corrosion In- hibitor 显示文摘 | Sourav K S Pritam G Abhiram H | 2015 | Physica E2015，66，33： | 1 |
| 9 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces显示文摘 | Sukhija S Pritam Palmquist D L | 1988 | J J Agric food chem1988，36，： | 1 |
| 10 | Dissociation of calcium soaps of lung-chain fatty acids in rumen fluid 显示文摘 | Pritam S Sukhija D L Palmquist | 1990 | Journal of Dairy Science1990，73，7： | 1 |
| 11 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces 显示文摘 | Sukhija S Pritam | 1988 | J Agric Food Chem1988，36，： | 1 |
| 12 | Prediction of cotton yarn properties using support vector machine显示文摘 | ANINDYA G PRITAM C | 2010 | Fibers and Polymers2010，11，： | 1 |
| 13 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces 显示文摘 | SUKHIJA S PRITAM | 1988 | Journal of Agricultural and Food Chemistry1988，36，6： | 1 |
| 14 | Disso- ciation of calcium soaps of long-chain fatty acids in rumen fluid显示文摘 | PRITAM S SUKHIJA P S PALMQUIST D L | 1990 | Journal of Dairy Science1990，73，： | 1 |
| 15 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces显示文摘 | Pritam S S Palmquist D L | 1988 | J Agric Food Chem1988，36，： | 1 |
| 16 | Inhibitors of γ-secretase block in vivo and in vitro T helper type 1 polarization by preventing Notch up regulation of Tbx21显示文摘 | Lisa M Minter Danielle M Turley Pritam Das | 2005 | Nat Immunol2005，6，7： | 1 |
| 17 | 微合金化和余热处理热轧带肋钢筋高低周疲劳性能对比研究显示文摘通过试验研究,对比分析了微合金化和余热处理带肋钢筋的高周疲劳和低周疲劳性能。研究表明,微合金化钢筋比余热处理钢筋具有更好的疲劳性能。在微合金化和余热处理带肋钢筋的高低周疲劳试验中,观察到在横肋根部裂纹萌生并沿该区域扩展。有限元模拟结果显示在横肋根部出现应力集中,应力三轴度变大。模拟过程中也发现在横肋根部拉应变累积。有限元模拟结果有助于解释试验观察结果,即疲劳裂纹沿热轧带肋钢筋的横肋根部萌生及扩展。 | Surajit Kumar Paul Pritam Kumar Rana Debdulal Das Sanjay Chandra Saurabh Kundu 杨雄飞 | 2015 | 钢铁钒钛2015，36，2： | 1 |
| 18 | Rapid method for determination of total fatty acid content and composition of feedstuffs and feces显示文摘 | Sukhija S Pritam Palmquist D L | 1988 | J Agric Food Chem1988，36，： | 1 |
| 19 | Analysis andsimulation of polarization mode dispersion effects on highbit -rate fiber -optic transmission system 显示文摘 | R Shafinp SenS Basak Pritam Sen | 2012 | Electrical &Computer Engineering (ICECE)2012，，： | 1 |
| 20 | Information Technology and Productivity:A Comparison of Japanese and Asia-Pacific Banks显示文摘 | Swierczek Fredric William Shrestha Pritam K | | 0，，09： | 1 |
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