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| 1 | A Comprehensive Approach for the Clustering of Similar-Performance Cells for the Design of a Lithium-Ion Battery Module for Electric Vehicles显示文摘An energy-storage system comprised of lithium-ion battery modules is considered to be a core component of new energy vehicles,as it provides the main power source for the transmission system.However,manufacturing defects in battery modules lead to variations in performance among the cells used in series or parallel configuration.This variation results in incomplete charge and discharge of batteries and non-uniform temperature distribution,which further lead to reduction of cycle life and battery capacity over time.To solve this problem,this work uses experimental and numerical methods to conduct a comprehensive investigation on the clustering of battery cells with similar performance in order to produce a battery module with improved electrochemical performance.Experiments were first performed by dismantling battery modules for the measurement of performance parameters.The kmeans clustering and support vector clustering(SVC)algorithms were then employed to produce battery modules composed of 12 cells each.Experimental verification of the results obtained from the clustering analysis was performed by measuring the temperature rise in the cells over a certain period,while air cooling was provided.It was found that the SVC-clustered battery module in Category 3 exhibited the best performance,with a maximum observed temperature of 32℃.By contrast,the maximum observed temperatures of the other battery modules were higher,at 40℃for Category 1(manufacturer),36℃for Category 2(manufacturer),and 35℃for Category 4(k-means-clustered battery module). | Wei Li Siqi Chen Xiongbin Peng Mi Xiao Liang Gao Akhil Garg Nengsheng Bao | 2019 | Engineering2019，5，4： | 4 |
| 2 | Review of materials used in laser-aided additive manufacturing processes to produce metallic products显示文摘Rapid prototyping (RP) or layered manufacturing (LM) technologies have been extensively used to manufacture prototypes composed mainly of plastics, polymers, paper, and wax due to the short product development time and low costs of these technologies. However, such technologies, with the exception of selective laser melting and sintering, are not used to fabricate metallic products because of the resulting poor life, short cycle, poor surface finish, and low structural integrity of the fabricated parts. The properties endowed by these parts do not match those of functional parts. Therefore, extensive research has been conducted to develop new additive manufacturing (AM) technologies by extending existing RP technologies. Several AM technologies have been developed for the fabrication of metallic objects. These technologies utilize materials, such as Ni-, A1-, and Ti-based alloys and stainless steel powders, to fabricate high-quality functional components. The present work reviews the type of materials used in laserbased AM processes for the manufacture of metallic products. The advantages and disadvantages of processes and different materials are summarized, and future research directions are discussed in the final section. This review can help experts select the ideal type of process or technology for the manufacturing of elements composed of a given alloy or material (Ni, Ti, Al, Pb, and stainless steel). | Xiaodong NIU Surinder SINGH Akhil GARG Harpreet SINGH Biranchi PANDA Xiongbin PENG Qiujuan ZHANG | 2019 | Frontiers of Mechanical Engineering2019，14，3： | 4 |
| 3 | A new design of 3D-printed orthopedic bone plates with auxeticstructures to mitigate stress shielding and improve intra-operative bending显示文摘Orthopedic bone plates are most commonly used for bone fracture fixation for more than 100 years.The bone plate design had evolved over time overcoming many challenges such as insufficient strength and excessive plate–bone contact affecting the blood circulation.However,it is only made of two materials,either stainless steel(AISI 316L)or titanium(Ti–6Al–4V).There are two main limitations of metallic bone implants,namely stress shielding and the problem of malocclusion caused by the displacement of the fracture site during healing.To overcome the two problems,a new bone plate design with the incorporation of auxetic structures is proposed in this work.This study aims to use auxetic structure section in the bone plate that would decrease the stiffness of the region,thereby mitigating the stress-shielding effect and at the same time act as a deformable section to enable intra-operative bending for effective alignment while having enough bending strength and stiffness.Two different auxetic structures namely re-entrant honeycomb and missing rib structures were considered.The auxetic structure incorporated bone plates were designed,finite element analysis was done,fabricated using direct metal laser sintering technique,and tested.The results indicate that the re-entrant honeycomb structure incorporated bone plates serve as an effective bone design compared to the conventional bone plate design,in terms of stress shielding and intra-operative bending while offering similar mechanical and bending strength. | Sanjairaj Vijayavenkataraman Akhil Gopinath Wen F.Lu | 2020 | Bio-Design and Manufacturing2020，3，2： | 4 |
| 4 | A Fast Charging–Cooling Coupled Scheduling Method for a Liquid Cooling-Based Thermal Management System for Lithium-Ion Batteries显示文摘Efficient fast-charging technology is necessary for the extension of the driving range of electric vehicles.However,lithium-ion cells generate immense heat at high-current charging rates.In order to address this problem,an efficient fast charging–cooling scheduling method is urgently needed.In this study,a liquid cooling-based thermal management system equipped with mini-channels was designed for the fastcharging process of a lithium-ion battery module.A neural network-based regression model was proposed based on 81 sets of experimental data,which consisted of three sub-models and considered three outputs:maximum temperature,temperature standard deviation,and energy consumption.Each sub-model had a desirable testing accuracy(99.353%,97.332%,and 98.381%)after training.The regression model was employed to predict all three outputs among a full dataset,which combined different charging current rates(0.5C,1C,1.5C,2C,and 2.5C(1C=5 A))at three different charging stages,and a range of coolant rates(0.0006,0.0012,and 0.0018 kg·s^(-1)).An optimal charging–cooling schedule was selected from the predicted dataset and was validated by the experiments.The results indicated that the battery module’s state of charge value increased by 0.5 after 15 min,with an energy consumption lower than 0.02 J.The maximum temperature and temperature standard deviation could be controlled within 33.35 and 0.8C,respectively.The approach described herein can be used by the electric vehicles industry in real fast-charging conditions.Moreover,optimal fast charging-cooling schedule can be predicted based on the experimental data obtained,that in turn,can significantly improve the efficiency of the charging process design as well as control energy consumption during cooling. | Siqi Chen Nengsheng Bao Akhil Garg Xiongbin Peng Liang Gao | 2021 | Engineering2021，7，8： | 3 |
| 5 | 最佳变换多元回归法利用测井资料预测渗透率显示文摘利用测井资料预测渗透率,传统的多元回归法需要先假定一个函数关系。由于物性变量之间的关系很难确切把握,所以一直不可能预先确定所采用的自变量和因变量之间潜在的函数形式。在石油地质特征变化较大将别是变量较多的情形下,参数回归常常失败,从而导致结论的不稳定甚至是错误的。 本文介绍了一种非参数方法,该方法通过对物性数据作最佳变换估算从而使观查变量间达到最大相关。这种方法不需要事先假定一个函数形式,其最佳变换仅依赖于数组。不象神经网络,其变换方便机械地依赖于函数识别。迭代过程涉及的交替条件期望(ACE)是该方法的基础。ACE的优势将用假设例子和油田实例加以说明。例子的结果清楚地显示了用ACE法提高渗透率预测与传统的参数回归法之间的比较。 | Guo Ping Xue Akhil Datta-Gupta 谢继容 金雁 | 1998 | 天然气勘探与开发1998，0，2： | 2 |
| 6 | 自由化改革与腐败:以印度为例显示文摘近半个世纪以来,亚洲不少国家先后经历了经济发展和政治改革,并由此步入经济相对发达、国力相对强盛的阶段。但在这个过程中,腐败问题一直挥之不去。反腐败成为国家巩固自身合法性的必要手段。当下正在崛起的印度亦不例外,自1991年开启自由化改革以来,腐败的形式发生了根本变化。腐败的社会后果愈发严重,由此造成国家和民众之间的隔阂日益加深。 | 草苍 Akhil Gupta | 2018 | 文化纵横2018，，1： | 2 |
| 7 | On the sensitivity and spatial resolution of transient pressure and tracer data for heterogeneity characterization 显示文摘 | Akhil Datta-Gupta Vasco D W Long J C S | 1997 | SPE Formation Evaluation1997，12，4： | 1 |
| 8 | Treatment with antileukinate, a CXCR2 chemokine receptor antagonist, protects mice against acute pancreatitis and associated lung injury显示文摘 | Madhav Bhatia Akhil Hegde | 2006 | Regulatory Peptides2006，，1： | 1 |
| 9 | The role of CX 3 CL1/CX 3 CR1 in pulmonary angiogenesis and intravascular monocyte accumulation in rat experimental hepatopulmonary syndrome显示文摘 | Junlan Zhang Wenli Yang Bao Luo Bingqian Hu Akhil Maheshwari Michael B. Fallon | 2012 | Journal of Hepatology2012，，4： | 1 |
| 10 | An Application of Intuitionistic Fuzzy Sets in Medical Diagnosis 显示文摘 | SUPRIYA KUMAR DE RANJIT BISWAS AKHIL RANJAN ROY | 2001 | Fuzzy Sets and Systems2001，117，2： | 1 |
| 11 | Dietary supplementation%of probiotics affects growth,immune response and disease resistance of Cyprinus carpio fry显示文摘 | Akhil G Paromita G Asha D | 2014 | Fish and Shellfish Immunology2014，41，2： | 1 |
| 12 | Some operations on intuitionistic fuzzy sets 显示文摘 | Supriya Kumar De Ranjit Biswas Akhil Ranjan Roy | 2000 | Fuzzy Sets and Systems2000，114，3： | 1 |
| 13 | Aggregate production planning for a continuous reconfigurable manufacturing process显示文摘 | Akhil J Udatta S P | 2005 | Computers & Operations Research2005，32，5： | 1 |
| 14 | The role of CX 3 CL1/CX 3 CR1 in pulmonary angiogenesis and intravascular monocyte accumulation in rat experimental hepatopulmonary syndrome显示文摘 | Junlan Zhang Wenli Yang Bao Luo Bingqian Hu Akhil Maheshwari Michael B. Fallon | 2012 | Journal of Hepatology2012，，4： | 1 |
| 15 | Some Operators on Intuitionistic Fuzzy Sets显示文摘 | Supriya K D Biswas R Akhil R R | 2000 | Fuzzy Sets and Systems2000，，114： | 1 |
| 16 | Beyond 'culture':Space,Identity,and the Politics of Difference显示文摘 | Gupta Akhil James Ferguson | | 0，，01： | 1 |
| 17 | A unified model for single/Multi-finger HBT's including self-heating effects显示文摘 | Akhil Gariapati | 2001 | IEEE Trans Microwave Theory Technology2001，1，49： | 1 |
| 18 | Some operations on intuitionistic fuzzy sets显示文摘 | Supriya Kumar De Ranjit Biswas Akhil Ranjan Roy | 2000 | Fuzzy Sets and Systems2000，114，3： | 1 |
| 19 | Lifestyle Associated Risk Factors in Adolescents 显示文摘 | AKHIL K S ANKIT M NIDHI S | 2006 | Indian Journal of Pediatrics2006，73，10： | 1 |
| 20 | Detection of microorganisms using biosensors—A smarter way towards detection techniques显示文摘 | Madhura Nayak Akhil Kotian Sandhya Marathe Dipshikha Chakravortty | 2009 | Biosensors and Bioelectronics2009，，4： | 1 |
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