检索结果-南通市图书馆

Journal of Bionic Engineering 2024年第2期21卷 821-841页

作者： Vipin Pachouri pushparaj Mani Pathak Indian Institute of Technology Roorkee Roorkee247667India

Continuum manipulators(CM)are soft and flexible manipulators with large numbers of degrees of freedom and can perform complex tasks in an unstructured ***,their deformability and compliance can deviate distal tip under uncertain external *** address this challenge,a novel tension-based control scheme has been proposed to modulate the stiffness of a tendon-driven CM,reducing the tip position errors caused by uncertain external *** minimize the tip position error,a virtual spring is positioned between the deviated and the desired tip *** proposed algorithm corrects the manipulator deviated tip position,improving tension distribution and stiffness profile,resulting in higher stiffness and better *** corresponding task space stiffness and condition numbers are also computed under different cases,indicating the effectiveness of the tension control scheme in modulating the manipulator's *** validation conducted on an in-house developed prototype confirms the practical feasibility of the proposed approach.

关键词： Continuum arm Hyper-redundant robots Variable stiffness manipulator Tension-based control Mechatronic systems

Reduced semen quality in patients with testicular cancer seminoma is associated with alterations in the expression of sperm proteins

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2020年第1期22卷 88-93页

作者： Tania R Dias Ashok Agarwal Peter N pushparaj Gulfam Ahmad Rakesh Sharma American Center for Reproductive Medicine Cleveland ClinicClevelandOH 44195USA Department of Health Sciences Faculty of Health SciencesUniversity of Beira InteriorCovilha 6201-001Portugal Department of Microscopy and Unit for Multidisciplinary Research in Biomedicine Institute of Biomedical Sciences Abel SalazarUniversity of PortoPorto 4050-313Portugal Center of Excellence in Genomic Medicine Research Faculty of Applied Medical SciencesJeddah 21589Saudi Arabia Division of Pathology School of Medical SciencesSydney UniversityLidcombe NSW 2141Australia

Testicular cancer seminoma is one of the most common types of cancer among men of reproductive *** with this condition usually present reduced semen quality,even before initiating cancer ***,the underlying mechanisms by which testicular cancer seminoma affects male fertility are largely *** aim of this study was to investigate alterations in the sperm proteome of men with seminoma undergoing sperm banking before starting cancer therapy,in comparison to healthy proven fertile men(control group).A routine semen analysis was conducted before cryopreservation of the samples(n=15 per group).Men with seminoma showed a decrease in sperm motility(P=0.019),total motile count(P=0.001),concentration(P=0.003),and total sperm count(P=0.001).Quantitative proteomic analysis identified 393 differentially expressed proteins between the study *** proteins involved in spermatogenesis,sperm function,binding of sperm to the oocyte,and fertilization were selected for validation by western *** confirmed the underexpression of heat shock-related 70 kDa protein 2(P=0.041),ubiquinol-cytochrome C reductase core protein 2(P=0.026),and testis-specific sodium/potassium-transporting ATPase subunit alpha-4(P=0.016),as well as the overexpression of angiotensin I converting enzyme(P=0.005)in the seminoma *** altered expression levels of these proteins are associated with spermatogenesis dysfunction,reduced sperm kinematics and motility,failure in capacitation and *** findings of this study may explain the decrease in the fertilizing ability of men with seminoma before starting cancer therapy.

关键词： male fertility proteomics seminoma sperm proteins sperm quality testicular cancer

An Automatic Threshold Selection Using ALO for Healthcare Duplicate Record Detection with Reciprocal Neuro-Fuzzy Inference System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2023年第3期74卷 5821-5836页

作者： Ala Saleh Alluhaidan pushparaj Anitha Subbappa Ved Prakash Mishra P.V.Chandrika Anurika Vaish Sarthak Sengupta Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadhKSA.P.O.Box:8442811671 Department of Electronics and Communication Engineering National Institute of Technical Teacher Training and ResearchChandigarh160019India Department of Periodontology JSS Dental College&HospitalJSS Academy of Higher Education and ResearchMysuru570015India Department of Computer Science and Engineering Amity UniversityDubai345019United Arab Emirates Department of Management/Economics Prin LN Welingkar Institute of Management Development and ResearchMumbai400019India Department of Management Studies Indian Institute of Information TechnologyAllahabad211012India

ESystems based on EHRs(Electronic health records)have been in use for many years and their amplified realizations have been felt *** still have been pioneering collections of massive volumes of health *** detections involve discovering records referring to the same practical components,indicating tasks,which are generally dependent on several input parameters that experts *** linkage specifies the issue of finding identical records across various data *** similarity existing between two records is characterized based on domain-based similarity functions over different ***-duplication of one dataset or the linkage of multiple data sets has become a highly significant operation in the data processing stages of different data mining *** objective is to match all the records associated with the same *** measures have been in use for representing the quality and complexity about data linkage algorithms,and many other novel metrics have been *** outline of the problem existing in themeasurement of data linkage and de-duplication quality and complexity is *** article focuses on the reprocessing of health data that is horizontally divided among data custodians,with the purpose of custodians giving similar features to sets of *** first step in this technique is about an automatic selection of training examples with superior quality from the compared record pairs and the second step involves training the reciprocal neuro-fuzzy inference system(RANFIS)*** the Optimal Threshold classifier,it is presumed that there is information about the original match status for all compared record pairs(i.e.,Ant Lion Optimization),and therefore an optimal threshold can be computed based on the respective ***,Clinical Decision(CD),and Cork Open Research Archive(CORA)data repository help analyze the proposed method with evaluated benchmarks with current techniques.

关键词： Duplicate detection healthcare record linkage dataset pre-processing reciprocal neuro-fuzzy inference system and ant lion optimization fuzzy system

Oblateness Effect of Saturn on Halo Orbits of L1 and L2 in Saturn-Satellites Restricted Three-Body Problem

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Astronomy and Astrophysics 2016年第4期6卷 347-377页

作者： Nishanth pushparaj Ram Krishan Sharma Department of Aerospace Engineering Karunya University Coimbatore India

The Circular Restricted Three-Body Problem (CRTBP) with more massive primary as an oblate spheroid with its equatorial plane coincident with the plane of motion of the primaries is considered to generate the halo orbits around L1 and L2 for the seven satellites (Mimas, Enceladus, Tethys, Dione, Rhea, Titan and Iapetus) of Saturn in the frame work of CRTBP. It is found that the oblateness effect of Saturn on the halo orbits of the satellites closer to Saturn has significant effect compared to the satellites away from it. The halo orbits L1 and L2 are found to move towards Saturn with oblateness.

关键词： Circular Restricted Three-Body Problem Lagrangian Points Halo Orbits Oblateness Saturn

Influence of Processing on Dietary Fiber, Tannin and <i>in Vitro</i>Protein Digestibility of Pearl Millet

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2011年第8期2卷 895-900页

作者： Florence Suma pushparaj Asna Urooj 不详

From the nutritional point of view, data on dietary fiber content, tannin and in vitro protein digestibility of processed millet is of importance, because millets are never eaten raw. Effects of commonly used traditional methods on dietary fiber, tannin content and %IVPD of two locally available pearl millet varieties (Kalukombu and Maharashtra Rabi Bajra) were investigated. The millet was subjected to various processing methods like milling (whole flour, semi refined flour and bran rich fraction) roasting, boiling, pressure cooking & germination respectively. Processing had little effect on the total dietary fiber (TDF) content in both varieties;however the bran rich fraction showed highest TDF content of around 29%. Tannins effectively lowered upon boiling and pressure cooking respectively, but significantly increased (P ≥ 0.05) upon germination. Although the % IVPD of the millet (45.5 – 49.3 g/100g) was low, it significantly increased upon milling (bran rich fraction), roasting and germination respectively.

关键词： Knowledge Attitudes Practices Food handlers Ghana

Cellular fatty acid composition,protein profile and antimicrobial activity of Bacillus sp.,isolated from fish gut

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Coastal Life Medicine 2014年第1期 59-63页

作者： pushparaj Sujith Baskaran Rohini Singaram Jayalakshmi C.A.S.in Marine Biology Annamalai University Parangipettai-608502 India

Objective:To purify and partially characterize the antimicrobial compounds from bacteriaBacillus sp.,isolated from fish ***:Protein and fatty acids were isolated from the bacteria and checked for the presence of antibacterial *** has been purified to apparent homogeneity from the supernatants of culture by means of ammonium sulphate precipitation followed by *** transform infrared spectroscopy analyses were performed for proteins to identify the functional ***:sulfate polyacrylamide gel *** acids were extracted and subjected to gas chromatographic ***:Protein showed an apparent molecular mass 56,47 and 39 kDa on sodium dodecyl acids and proteins which holds promise for the development of new *** antimicrobial activity of the bacteria might be due to the presence of fatty acids and proteins which holds promise for the development of new drugs.

关键词： Fatty acid Protein Antimicrobial activity GC-MS Fish gut PCR

Reduced Model Based Control of Two Link Flexible Space Robot

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent Control and Automation 2011年第2期2卷 112-120页

作者： Amit Kumar pushparaj Mani Pathak Nagarajan Sukavanam 不详

Model based control schemes use the inverse dynamics of the robot arm to produce the main torque component necessary for trajectory tracking. For model-based controller one is required to know the model parameters accurately. This is a very difficult task especially if the manipulator is flexible. So a reduced model based controller has been developed, which requires only the information of space robot base velocity and link parameters. The flexible link is modeled as Euler Bernoulli beam. To simplify the analysis we have considered Jacobian of rigid manipulator. Bond graph modeling is used to model the dynamics of the system and to devise the control strategy. The scheme has been verified using simulation for two links flexible space manipulator.

关键词： Flexible Space Robots Bond Graph Modeling Reduced Model Based Controller Euler-Bernoulli Beam

Evaluation of antibacterial activity of some selected green seaweed extracts from Muttam coastal areas,Kanyakumari,Tamil Nadu,India

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Coastal Life Medicine 2014年第2期 112-115页

作者： pushparaj Arunachalam Ramesh Uthandakalai Raubbin rajsmaill Department of Zoology TDMNS CollegeT.Kallikulam-627113.Tamil NaduIndia Department of Molecular Biology School of Biological SciencesM.K.UniversityMaduraiTamil NaduIndia

Objective:To investigate the antimicrobial activity of the selected marine green algae Ulva lactuca(***),Cheatomorpha linoides and Helimeda macroloba against six strains of Gram-positive bacteria[Staphylococcus aureus(***),Bacillus subtilis and Lactobacillus acidophilus(***)]and Gram-negative bacteria[Escherichia coli,Pseudomonas aeruginosa(***)and Proteus mirabilis].Methods:The selected green seaweed extracts were experimented with four different solvents(acetone,ethanol,methanol and chloroform)against the selected pathogens by using agar disc diffusion ***:The maximum activity(7 mm)was observed by the extract of *** against Proteus mirabilis by using methanol as a solvent and the lowest activity(2 mm)was recorded by the extract of *** against *** by using chloroform as a solvent and ethanol extract against *** lowest activity(2 mm)was seen in the extract of Cheatomorpha linoides by using ethanol and methanol as a solvent against *** Helimeda macroloba extract,the lowest activity was recorded against Escherichia coli by using chloroform as a *** microbial strains ***,***,Bacillus subtilis and *** were resistant to the chloroform and methanol of all selected ***:Further study should be needed to identify the prime compound which is responsible for the activity against the selected pathogens especially those causing the human diseases.

关键词： Seaweeds Ulva Cheatomorpha Helimeda Antimicrobial activity

ZSM-5沸石结晶度对乙苯叔丁基化对位选择性的影响(英文)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

催化学报 2013年第2期34卷 294-304页

作者： pushparaj Hemalatha MANI Ganesh MUTHIAHPILLAI Palanichamy VELAYUTHAM Murugesan PARK Yong-Ki CHOI Won Choon JANG Hyun Tae Department of Chemical Engineering Hanseo University Seosan-si 356 706 South Korea Department of Chemistry Anna University Chennai 600 025 India Green Chemistry Research Division Korea Research Institute of Chemical Technology Jang-dong 100. Daejeon 305 600 South Korea

Highly crystalline ZSM-5 zeolites are important for para-selective alkylation of alkyl aromatics, because they carry few external acid sites for isomerization of p-dialkyl products. Such zeolites (Si/Al = 25, 50, and 75) were synthesized in a fluoride medium between pH 4 and 6. Their crystallinities, crystal sizes, and surface areas were higher than those of a commercial ZSM-5 zeolite. Their para selectivities in alkylation were tested for vapor-phase tert-butylation of ethylbenzene between 200 and 400 °C. As expected, all the catalysts showed more than 90% para selectivity. At 300 °C, ethylbenzene conversion decreased in the order ZSM-5(25, commercial) > ZSM-5(25) > ZSM-5(50) > ZSM-5(75). The catalysts had weak, medium, and strong acid sites, but all the acid sites of ZSM-5(75) were weaker than those of ZSM-5(25) and ZSM-5(50). The high activity of commercial ZSM-5 was caused by its strong acid sites being stronger than those of the synthesized zeolites. Although the activity of the commercial catalyst was higher than those of the present catalysts, the selectivity for 4-t-butylethylbenzene (4-t-BEB) was low. The optimum feed ratio (ethylbenzene:t-butyl alcohol) was 2:1 and the feed rate was 1.65 h?1 for high ethylbenzene conversion and 4-t-BEB selectivity. Time-on-stream studies showed slow catalyst deactivation. Highly crystalline ZSM-5 zeolites are therefore better than a commercial zeolite for para-selective alkylation of alkyl aromatics. They do not require much post-modification for high para selectivity. A fluoride medium is therefore better than an alkaline medium for obtaining highly crystalline para-selective ZSM-5 zeolites.

关键词： ZSM-5 Fluoride medium P-selectivity Ethylbenzene Tert-butylation Zeolite

Anticancer,antioxidant,and antimicrobial properties of solvent extract of Lobophora variegata through in vitro and in silico studies with major phytoconstituents

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Food Bioscience 2022年第4期48卷 718-732页

作者： Nithya Palaniappan Balamuralikrishnan Balasubramanian Malaisamy Arunkumar Karthika pushparaj Kannan R.R.Rengasamy Viji Maluventhen Murugan Pitchai Jowaher Alanazi Wen-Chao Liu Arumugam Maruthupandian Ethnopharmacology and Algal Biotechnology Division Department of BotanySchool of Life SciencesPeriyar UniversitySalemTamil Nadu636011India Department of Food Science and Biotechnology College of Life ScienceSejong UniversitySeoul05006South Korea Transcription Regulation International Centre for Genetic Engineering and Biotechnology(ICGEB)New DelhiIndia Department of Zoology School of BiosciencesAvinashilingam Institute for Home Science and Higher Education for WomenCoimbatoreTamil Nadu641043India Centre for Transdisciplinary Research Department of PharmacologySaveetha Dental CollegeSaveetha Institute of Medical and Technical Sciences(SIMATS)ChennaiTamil Nadu600077India Centre of Excellence for Pharmaceutical Sciences North-West UniversityPotchefstroom2520South Africa Department of Botany Thiagarajar CollegeMaduraiTamil Nadu625009India Department of Medicinal Botany Sri Sai Ram Siddha Medical College and Research CentreWest TambaramChennaiTamil Nadu44India Department of Pharmacology and Toxicology College of PharmacyUniversity of HailHailSaudi Arabia College of Coastal Agricultural Sciences Guangdong Ocean UniversityZhanjiang524088PR China

Seaweeds possess a wide range of bioactive compounds which have been play a vital role in production of novel pharmaceutical and nutraceutical products *** present study employed in silico molecular docking to characterize the biomedical potential of brown seaweed Lobophora variegata through antibacterial,antibiofilm,antioxidant and anticancer *** antibacterial activity of *** extracts was analyzed against Escherichia coli,Enterococcus faecalis,Staphylococcus aureus,and Pseudomonas aeruginosa strains producing *** antioxidant activity was assessed using(2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)),superoxide,and hydroxyl radical scavenging ***,the anticancer,antibacterial,and antioxidant activities of the bioactive compounds were evaluated through molecular docking using GLIDE ligand docking module and prime MM-GBSA module in the Schrodinger *** phytochemical analysis of the methanolic extract of *** found more phycocompounds which was confirmed by FT-IR and *** significant level of phenol and flavonoid were expressed in methanolic extract of *** addition,the potent antioxidant activity of the methanolic extract was efficiently expressed during the free radical scavenging assays of ABTS,hydroxyl,and superoxide denoted as 34.94,26.64,and 29.86 mg/g,*** antibacterial and biofilm activities of the methanolic extract of *** had significant ***,the methanolic extract exhibited cytotoxicity against human colon cancer HT-29 cell lines at an inhibitory concentration is 193.65μg/*** the computational analysis,glyceryl monostearate,2-palmitoylglycerol,phthalic acid,2-chloropropyl ethyl ester,phthalic acid,5-methylhex-2-yl ethyl ester,and l-(+)-ascorbic acid 2,6-dihexadecanoate results as top ranked molecules and shown to be a promising compounds,which were evaluated for anticancer,antioxidant,and antibacterial properties against multi-target p

关键词： Brown seaweed Antioxidant Antibacterial Biofilm HT-29 cell line GLIDE docking MM-GBSA