检索结果-南通市图书馆

Solving Level Scheduling in Mixed Model Assembly Line by Simulated Annealing Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Circuits and Systems 2016年第6期7卷 907-931页

作者： senthilkumar Ramalingam Ramkumar Anna Subramanian Maharani Polytechnic College Dharapuram India Maharaja Prithvi Engineering College Coimbatore India

This paper presents an application of the simulated annealing algorithm to solve level schedules in mixed model assembly line. Solving production sequences with both number of setups and material usage rates to the minimum rate will optimize the level schedule. Miltenburg algorithm (1989) is first used to get seed sequence to optimize further. For this the utility time of the line and setup time requirement on each station is considered. This seed sequence is optimized by simulated annealing. This investigation helps to understand the importance of utility in the assembly line. Up to 15 product sequences are taken and constructed by using randomizing method and find the objective function value for this. For a sequence optimization, a meta-heuristic seems much more promising to guide the search into feasible regions of the solution space. Simulated annealing is a stochastic local search meta-heuristic, which bases the acceptance of a modified neighboring solution on a probabilistic scheme inspired by thermal processes for obtaining low-energy states in heat baths. Experimental results show that the simulated annealing approach is favorable and competitive compared to Miltenburg’s constructive algorithm for the problems set considered. It is proposed to found 16,985 solutions, the time taken for computation is 23.47 to 130.35, and the simulated annealing improves 49.33% than Miltenberg.

关键词： Mixed Model Assembly Line Level Schedule Sequence Just-in-Time Manufacturing Simulated Annealing

Evaluating Peptide Mass Fingerprinting-based Protein Identification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2007年第3期5卷 152-157页

作者： senthilkumar Damodaran Troy D.Wood Priyadharsini Nagarajan Richard A.Rabin Department of Pharmacology and Toxicology School of Medicine and Biomedical SciencesUniversity at BuffaloBuffaloNY 14214USA Department of Chemistry University at BuffaloBuffaloNY 14260USA Department of Biochemistry School of Medicine and Biomedical SciencesUniversity at BuffaloBuffaloNY 14214USA.

Identification of proteins by mass spectrometry （MS） is an essential step in proteomic studies and is typically accomplished by either peptide mass fingerprinting （PMF） or amino acid sequencing of the peptide. Although sequence information from MS/MS analysis can be used to validate PMF-based protein identification, it may not be practical when analyzing a large number of proteins and when highthroughput MS/MS instrumentation is not readily available. At present, a vast majority of proteomic studies employ PMF. However, there are huge disparities in criteria used to identify proteins using PMF. Therefore, to reduce incorrect protein identification using PMF, and also to increase confidence in PMF-based protein identification without accompanying MS/MS analysis, definitive guiding principles are essential. To this end, we propose a value-based scoring system that provides guidance on evaluating when PMF-based protein identification can be deemed sufficient without accompanying amino acid sequence data from MS/MS analysis.

关键词： peptide mass fingerprinting Mowse Mascot ProFound proteomics

Effect of thermal cycle on Ni-Cr based nanostructured thermal spray coating in boiler tubes

在线全文

学校读者我要写书评

暂无评论

Transactions of Nonferrous Metals Society of China 2015年第5期25卷 1533-1542页

作者： V.senthilkumar B.THIYAGARAJAN M.DURAISELVAM K.KARTHICK Department of Production Engineering National Institute of Technology Bharat Heavy Electricals Limited

Ni-Cr based nanostructured feedstock powder was prepared by mechanical milling technique involving repeated welding, fracturing, and re-welding of powder particles in a planetary ball mill. The milled nanocrystalline powders were used to coat carbon steel tubes using high velocity oxygen fuel（HVOF） thermal spraying process. The characterization of the feedstock powder and HVOF coated substrates was performed using optical microscope, X-ray diffractometer（XRD）, scanning electron microscope（SEM）, high resolution transmission electron microscope（HR-TEM）, energy dispersive spectrometer（EDS） and microhardness tests. The coated and uncoated samples were subjected to different thermal cycles and characterized for their phase changes, metallurgical changes and microhardness variations. Ni-Cr nanostructured coated samples exhibited higher mechanical and metallurgical properties compared to their conventionally coated counter parts. The results showed that the nanostructured coating possessed a more uniform and denser microstructure than the conventional coating.

关键词： nanostructure coating feedstock powder thermal spray boiler tubes high velocity oxygen fuel

Activity and stability of bacterial cellulase immobilized on magnetic nanoparticles

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Catalysis 2016年第11期37卷 1891-1898页

作者： Kandasamy Selvam Muthusamy Govarthanan Duraisamy Senbagam Seralathan Kamala-Kannan Balakrishnan senthilkumar Thangasamy Selvankumar Muthayammal艺术与科学学院生物工程中心印度泰米尔纳德邦纳马卡尔637408 Mahendra艺术与科学学院生物工程系印度泰米尔纳德邦纳马卡尔637501 室兰工业大学环境工程学院应用科学系日本北海道620024 巴拉迪大学海洋生物工程系印度泰米尔纳德邦蒂鲁吉拉伯利620024 全北国立大学环境和生物资源科学学院环境与生物科学高级研究所生物技术部韩国益山570752 Haramaya大学健康与医学科学学院医学微生物学系埃塞俄比亚哈拉尔

Magnetic nanoparticles（Fe3O4） were synthesized by co-precipitating Fe^2＋ and Fe^3＋ ions in an ammonia solution and treating under hydrothermal *** was immobilized onto Fe3O4 magnetic nanoparticles via glutaraldehyde *** response surface methodology and Box-Behnken design,the variables such as magnetic nanoparticle concentration,glutaraldehyde concentration,enzyme concentration,and cross linking time were *** Box-Behnken design analysis showed a reasonable adjustment of the quadratic model with the experimental *** contour plots were generated to evaluate the changes in the response surface and to understand the relationship between the nanoparticles and the enzyme *** electron microscopy,X-ray diffraction analysis,and Fourier transform infrared spectroscopy were studied to characterize size,structure,morphology,and binding of enzyme onto the *** stability and activity of the bound cellulase was analyzed using various parameters including pH,temperature,reusability,and storage *** immobilized cellulase was compared with free cellulase and it shows enhanced stability and activity.

关键词： Magnetic nanoparticle Immobilized enzyme Response surface methodology Characterization

在线全文

学校读者我要写书评

暂无评论

广东大宝山复合污染土壤的改良及植物复垦

中国环境科学 2008年第9期28卷 775-780页

作者：邹晓锦仇荣亮黄穗虹田甜 P.senthilkumar 中山大学环境科学与工程学院广东省环境污染控制与修复技术重点实验室广东广州510275

选取广东省大宝山农耕废弃污染土壤及尾矿坝土壤,采用豌豆盆栽实验,研究了施用石灰石、沸石、粉煤灰对豌豆生物量、豌豆植株内Cd、Cu、Pb和Zn含量、土壤中各重金属的有效态及土壤pH值的影响.结果表明,对于农耕废弃污染土壤,3种改良剂均... 详细信息

选取广东省大宝山农耕废弃污染土壤及尾矿坝土壤,采用豌豆盆栽实验,研究了施用石灰石、沸石、粉煤灰对豌豆生物量、豌豆植株内Cd、Cu、Pb和Zn含量、土壤中各重金属的有效态及土壤pH值的影响.结果表明,对于农耕废弃污染土壤,3种改良剂均能显著提高豌豆的生物量,经改良处理后,豌豆生物量为对照的2.4-2.9倍.对于尾矿坝土壤,未改良处理时豌豆不能发芽;沸石处理时豌豆发芽后1周后萎蔫死亡;石灰石和粉煤灰有一定的改良效果.改良处理能明显降低豌豆对Cd、Cu、Zn和Pb的吸收.粉煤灰与石灰石混剂处理对豌豆重金属吸收降低效果最显著,Cd、Cu、Pb和Zn降低率分别为94.6%,69.3%,80.6%,87.3%,混剂处理优于单剂处理.豌豆重金属含量与土壤中重金属有效态含量呈极显著相关,改良剂促进植株生长的主要原因可能是提高了土壤pH值并释放出植物营养元素（K、Ca和Mg等）,从而改善了土壤理化性质,同时降低了复合污染土壤重金属的生物有效性.

关键词：重金属石灰石沸石粉煤灰豌豆

Health Care Discrimination in HIV Care

在线全文

学校读者我要写书评

暂无评论

World Journal of AIDS 2011年第3期1卷 100-103页

作者： Jayakumar Palanisamy senthilkumar Subramanian 不详

Human Immunodeficiency Virus (HIV) infected population is experiencing enormous amount of social discrimination and stigmatization compared to other patients with any other chronic illness. Healthcare setup is not an exception where the HIV infected patients are shuttled from one place to another to get their basic services compared to HIV negative patients. This referral game of manipulation imparts additional stress to the already stressed HIV infected population. The physical and psychological impacts caused by other chronic conditions will be supplemented by social impact in the HIV infected population. This referral game in healthcare can cause the HIV infected to avoid their health seeking behavior and it may bring them back to their high risk activities, which can result in higher mortality/morbidity and failure in prevention and intervention strategies.

关键词： HIV AIDS Discrimination Healthcare

Effect of Boundary Layer Fence Location on HAWT Power Performance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Circuits and Systems 2016年第8期7卷 1177-1189页

作者： Sundaravadivel Arumugam Nadaraja Pillai Subramania senthilkumar Chidambaram Department of Aerospace Engineering Madras Institute of Technology Anna University Chennai India School of Mechanical Engineering SASTRA University Thanjavur India

Even though wind energy is a deep-rooted technology, but not yet mature and hence there are bounteous scopes for improvement to reduce the cost of wind energy. An experimental investigation has been carried out on 1:25 scaled S809 aerofoil blade featuring boundary layer fence at various span wise location. Quantifying electrical power obtained by rotation of wind turbine rotor coupled with dynamic testing system. A baseline model with no flow control and an upgraded model with detachable boundary layer fence have been studied in the wind tunnel. For upgraded model, fences were placed along the location of 40% to 90% of the blade span. The rotor blades are then tested dynamically in wind tunnel at open terrain condition for 7 m/s, 9 m/s and 11 m/s velocities. In order to study the effect of boundary layer fence test has been carried out in the low speed wind tunnel having test section of size 0.9 m × 1.2 m × 2 m. Scope corder DL 750 is used to measure time varying voltage and proximity sensor with its compatible display unit is used to measure the rotor RPM. The flow behaviour was found to be considerably favourable from conventional rotor blades. Installation of fence has been found promising for increased energy extraction from air column by controlling the three dimensional span wise flow. Results demonstrate the potential of the proposed model which can obtain a maximum of about 11.8% increase in the power. In addition, the significance of the location of wing fence and blade pitch angle has been analysed.

关键词： HAWT S809 Airfoil Boundary Layer Fence Wind Tunnel Testing

Breeding Resilience:Exploring Lodging Resistance Mechanisms in Rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2024年第6期31卷 659-672页

作者： Durga Prasad MULLANGIE Kalaimagal THIYAGARAJAN Manonmani SWAMINATHAN Jagadeesan RAMALINGAM Sritharan NATARAJAN senthilkumar GOVINDAN Department of Genetics and Plant Breeding Centre for Plant Breeding and GeneticsTamil Nadu Agricultural UniversityCoimbatore 641003India Department of Rice Centre for Plant Breeding and GeneticsTamil Nadu Agricultural UniversityCoimbatore 641003India Centre for Molecular Biology and Biotechnology Tamil Nadu Agricultural UniversityCoimbatore 641003India

Lodging is more than just plants falling over;it incurs significant economic losses for farmers leading to a decrease in both yield and quality of the final *** management practices,such as dense sowing,excessive nitrogen fertilizer applications,inappropriate sowing dates,and upland rice cultivation,exacerbate the risk of lodging in *** breeders have developed high-yielding rice varieties utilizing the sd1 gene,relying solely on this gene is insufficient to enhance lodging *** the traits that contribute to lodging resistance is *** factors include biochemical,anatomical,and morphological traits,such as the levels of lignin,cellulose,hemicellulose,silicon,and potassium,along with the number and area of vascular bundles and the thickness,diameter,and length of the ***,markers associated with lodging-related genes,like SCM2,SCM3,SCM4,and prl4,can be utilized effectively in marker-assisted backcrossing to develop rice varieties with desirable culm *** literature review aims to aid rice breeders in addressing the issue of lodging by examining traits that influence lodging resistance,developing phenotyping strategies for these traits,identifying suitable instrumentation,exploring methods for screening lodging-resistant plants,understanding the mathematical relationships involved,and considering molecular breeding aspects for pyramiding genes related to lodging.

关键词： rice lodging resistance breaking and bending type lodging culm strength SCM gene prl gene lignin cellulose

Normalizing the Arm Reaching Patterns after Stroke through Forced Use Therapy– A Systematic Review

在线全文

学校读者我要写书评

暂无评论

Neuroscience & Medicine 2010年第1期1卷 20-29页

作者： senthilkumar Jeyaraman Ganesan Kathiresan Kavitha Gopalsamy 不详

Hemiparesis is common following stroke. The ability to reach and grasp is a necessary component of many daily life functional tasks, hence reduced upper limb function has an impact on the ability to perform activities of daily living. In hemiparetic patients, the unrestricted and unguided repetition of a motor task may reinforce compensatory movements. Trunk restraint allowed the patients to use joint ranges that were present but not recruited during unrestrained reaching. Later, studies combined the trunk restraint training with additional therapeutic interventions. With the growing number of studies on this intervention in the stroke population, there is the need to consolidate this evidence to determine the potential use of trunk restraint training in improving arm reaching in neurological rehabilitation particularly for stroke patients. A considerable research effort had assessed the effects of trunk restraint training on the recovery of reaching movements in hemiparetic patients. This review identified 5 relevant trials in which one trial is a pilot study. Among 5 trials, three trials recorded the movement kinematics (outcome measure) by Optotrak Motion analysis System, in the other two trials the movement kinematics (outcome measure) were analysed by a 6 – camera, 3D Motion analysis system and 10 – camera Motion Analysis System respectively. The effect size for the intervention was calculated by Cohen’s d. In this review, for the meta-analysis we used trunk displacement, trunk flexion, elbow extension, Smoothness and hand trajectory straightness (movement variables in kinematic analysis). The results of our review demonstrated that the use of trunk restraint as a treatment paradigm aimed at decreasing compensatory strategies has the potential of becoming an effective therapy. Further studies are necessary to determine the long term effect of the trunk restraint training.

关键词： Stroke trunk restraint reaching