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Journal of Coastal Life Medicine 2016年第11期4卷 879-883页

作者： Irulandi Kokkaiah Geetha Sethupandian mehalingam palanichamy Research Department of Botany V.H.N.Senthikumara Nadar College(an autonomous institution affiliated to Madurai Kamaraj UniversityMadurai)Virudhunagar 626001Tamil NaduIndia

Objective:To evaluate phytochemicals and antimicrobial activity of Randia spinosa(Thunb.)*** Dillenia pentagyna *** extracts against human pathogens such as Gram positive bacteria(Streptococcus faecalis,Bacillus subtilis and Staphyllococcus aureus),Gram negative bacteria(Escherichia coli,Klebsiella pneumoniae and Pseudomonas aeruginosa),and a fungus Candida ***:Antimicrobial activity of methanol,acetone and ethyl acetate extracts of the two plants against the human pathogens was investigated by agar well diffusion method,and qualitative phytochemical screening was conducted for the presence of phytoconstituents such as alkaloids,catechins,coumarins,flavonoids,phenols,quinones,saponins,steroids,tannins and ***:The qualitative phytochemical analysis showed the presence of diverse range of compounds like alkaloids,flavonoids,phenols,steroids,tannins,terpenoids and *** plants exhibited broad spectrum of antimicrobial activities against all the tested bacterial and fungal *** maximum zone of inhibition was observed in methanol extracts when compared with acetone and ethyl acetate *** present study demonstrated that the selected plants had promising effect on the bacterial and fungal ***:The phytochemicals in the plants may be potentially responsible for the antimicrobial efficacy of these medicinal plants.

关键词： Randia spinosa Dillenia pentagyna Antimicrobial activity Phytochemical analysis

A microgrid for the secluded Paana Theertham Kani settlement in India

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Clean Energy 2022年第1期6卷 43-58页

作者： C.palanichamy Tan Woan Wen P.Naveen Multimedia University 63100 CyberjayaMalaysia

Recognizing the importance of electricity as a driver of rapid economic growth and poverty alleviation,India aims to provide access to all households by *** the best efforts of state and federal governments to meet consumers’electrical needs,budget constraints,inefficient operations and massive loan burdens have hampered their *** from these concerns,rural India,which accounts for 65%of the population,is plagued by a slew of issues,including low electricity demand,a low load factor and the expectation of cheap *** concerns bind the authorities’hands,preventing them from moving *** a result,this project aims to model an autonomous microgrid system that integrates three potential renewable-energy systems,namely wind,sun and hydrokinetic,to provide electricity for a remote *** starts with assessing the region’s electricity needs with its *** HOMER Pro platform creates a cost-effective microgrid based on the demand *** components of the microgrid include 6.4-kW small wind turbine(SWT)groups,4.4-kW solar photovoltaic(PV)panels,a 5-kW hydrokinetic water turbine,battery storage and a *** project is unique in that it considers site-specific initial capital costs,replacement costs,and operation and maintenance costs of the renewable-energy systems,and it does not include any environmentally hazardous energy *** successful optimization results in terms of levelized energy costs are$0.0538,$0.0614 and$0.0427/kWh for wind,solar and hydrokinetic components,respectively,without any environmental issues.

关键词： secluded society electrification microgrid renewables distributed generation

Heat Transfer Analysis of an Elevated Linear Absorber with Trapezoidal Cavity in the Linear Fresnel Reflector Solar Concentrator System

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Journal of Thermal Science 2015年第1期24卷 90-98页

作者： R.Manikumar R.palanichamy A.Valan Arasu Department of Automobile Engineering SSM Institute of Engineering and Technology SSM Institute of Engineering and Technology Department of Mechanical Engineering Thiagarajar College of Engineering

This paper describes various aspects of the design methodology and heat transfer calculations for an elevated linear absorber. The absorber is a part of the linear Fresnel reflector solar concentrator system, in which hot fluid is generated. The design of the absorber is an inverted trapezoidal air cavity with a glass cover enclosing a multi tube absorber. In a trapezoidal cavity absorber, a set of linear multi tube absorber with plate(named as "plane surface") and without plate(named as "tube surface") underneath are considered. An analytical simulation is done for different gaps between the tubes and for different depths of the cavity. A better design of the absorber is found out to maximize the heat transfer rate supplied to the absorber tube fluid. Also, the experimentally obtained overall heat loss coefficients are compared with the analytical values for the considered arrangements of absorber set up and results are discussed in details.

关键词：聚光系统吸收器太阳能菲涅耳传热分析线性梯形反射镜

Micro grid for All India Institute of Medical Sciences,Madurai

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Clean Energy 2021年第2期5卷 254-272页

作者： C.palanichamy P.Naveen Multimedia University 63100 CyberjayaMalaysia

In 2018,the Government of India approved the establishment of the New All India Institute of Medical Sciences(AIIMS)in Thoppur,Madurai,Tamil Nadu,*** the most important amenity for continuing primary care and rescue response is a healthcare facility,a secure electricity supply becomes an imperative ***,as the energy supplier for the new AIIMS,Madurai,this paper proposes a microgrid combined with the utility *** microgrid consists of a 4-MW photovoltaic system,a 1.8-MW wind-turbine energy-conversion system,a backup diesel generator capable of meeting the forecasted maximum demand and a 1-MW battery energy-storage *** AIIMS Microgrid will have a service providing a capacity of 20 MVA following integration with the utility *** proposed microgrid would be the first attempt at healthcare facilities in India since its first day of work to ensure the availability of *** would have a 9.8%return on investment,a 13.6%internal rate of return and a payback period of 6.75 years once it is operational,as well as an attractive levelized cost of energy(LCOE)of USD 0.07547/*** would provide an environmentally friendly atmosphere by avoiding an annual emission of 6261132 kg of carbon dioxide,27362 kg of sulphur dioxide and 12838 kg of nitrogen oxides as compared to power supplied entirely from the utility grid.

关键词： new healthcare facilities load assessment microgrid proposal optimization

Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene

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Journal of Rare Earths 2013年第5期31卷 477-484页

作者： Azhagapillai Prabhu Ahmed Al Shoaibi Chandrasekar Srinivasakannan Muthaiahpillai palanichamy Velayutham Murugesan Department of Chemical Engineering The Petroleum InstituteAbu DhabiUAE Department of Chemistry Anna University

Cerium incorporated KIT-6 mesoporous materials were synthesized through direct hydrothermal method and characterized by using X-ray diffraction （XRD）, nitrogen sorption isotherm （BET）, Fourier transform infrared spectroscopy （FT-IR）, inductively coupled plasma - atomic emission spectroscopy （ICP-AES）, diffuse reflectance ultraviolet visible spectroscopy （DRS-UV-Vis）, ther- mogravimetric analysis （TGA）, scanning electron microscopy （SEM） and transmission electron microscopy （TEM） methods. It ap- peared that stable cerium ions were inserted into the silica framework of KIT-6, thus generating acid properties in their host materials. The catalytic activity of Ce-KIT-6 materials was evaluated in the vapor phase dehydration of cyclohexanol to cyclohexene and dicy- clohexyl ether at different temperatures with various Si/Ce molar ratios. Ce-KIT-6 （25） showed higher activity with 54% cyclohexa- nol conversion and 64% selectivity to cyclohexene. The catalytic results indicated that Ce-KIT-6 mesoporous materials could be used as versatile and stable acid catalysts.

关键词： Ce-KIT-6 dehydration eyclohexanol cyclohexene dicyclohexyl ether rare earths

Hard Foulers Induced Crevice Corrosion of HSLA Steel in the Coastal Waters of the Gulf of Mannar (Bay of Bengal), India

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Journal of Marine Science and Application 2014年第1期13卷 117-126页

作者： S.palanichamy G.Subramanian Offshore Platform and Marine Electrochemistry Centre CSIR Central Electrochemical Research InstituteNew Harbour Area Tuticorin 628004 India

In the present study an attempt has been made to investigate the relationship between the variations in the fouling assemblage and corrosion behaviour of HSLA steel at three coastal locations in the Gulf of Mannar, India, over a period of 24 months. Oyster fouling was dominant in the Tuticorin open sea, while barnacles were the major foulants in the Tuticorin harbour and Mandapam. The fouling load in the Tuticorin waters was higher when compared to the Mandapam waters. The corrosion rates decreased progressively with the immersion time at all three test locations. In the Tuticorin open sea, the corrosion rates were higher when compared to the other two locations throughout the study period. The surface of the coupons was characterized by crevices beneath the hard foulers in the Tuticorin harbour and Mandapam, whereas in the Tuticorin open sea, the coupons experienced crevices of a tunneling nature. The percentage of the loss of the tensile strength increased with time at all the test locations.

关键词： HSLA steel coastal waters weight loss crevicecorrosion fouling ultimate tensile strength

CeAlPO-5分子筛催化剂上二苯基甲烷选择性氧化生成二苯甲酮(英文)

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催化学报 2012年第7期33卷 1086-1094页

作者： Subbiah DEVIKA Muthiahpillai palanichamy Velayutham MURUGESAN Department of Chemistry Anna University

Selective oxidation of diphenylmethane to benzophenone requires active and selective catalysts. The framework incorporation of cerium in AlPO-5 molecular sieves creates active cerium sites in isolation. These active sites are responsible for selective oxidation. Cerium incorporated AlPO-5 with different Al/Ce ratios were synthesized, and the vapor phase oxidation of diphenylmethane in air over these catalysts was studied at 250, 275, 300, 325, and 350 °C. The diphenylmethane conversion and selectivity for benzophenone were more than 90%. CeAlPO-5(25) was found to be more active than other catalysts. The stability of the catalyst was verified by the time on stream study which indicated steady diphenylmethane conversion and benzophenone selectivity. Hence framework incorporated CeAlPO-5 molecular sieves are stable and active catalysts for the selective oxidation of diphenylmethane.

关键词： CeAlPO-5 molecular sieve hydrothermal synthesis oxidation diphenylmethane benzophenone

Galvanic Interactions of Aluminium 3004 and ∝ Brass in Tropical Marine Atmosphere

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Journal of Marine Science and Application 2014年第4期13卷 455-461页

作者： S. Palraj G. Subramanian S. palanichamy CSIR-Central Electrochemical Research Institute Karaikudi-630006 India Offshore Platform & Marine Electrochemistry Centre CSIR-CECRI Unit Harbour Area Tuticorin-628004 India

铝 3004 的流电的腐蚀行为 - 有不同区域比率的黄铜在 426 天的一个时期上在 Tuticorin 港口在热带海洋的空气被学习。区域比率， viz。一铝 :A 学习的黄铜 , 是 0.125， 0.25， 0.5， 1， 2， 4 和 8。金属的流电的腐蚀行为由于流... 详细信息

铝 3004 的流电的腐蚀行为 - 有不同区域比率的黄铜在 426 天的一个时期上在 Tuticorin 港口在热带海洋的空气被学习。区域比率， viz。一铝 :A 学习的黄铜 , 是 0.125， 0.25， 0.5， 1， 2， 4 和 8。金属的流电的腐蚀行为由于流电的结合以铝的腐蚀率的相对增加被学习黄铜，处于黄铜的腐蚀率的相对减少由于流电的结合铝，并且到由于流电的结合的 pitting 的铝的危险性黄铜。系统的流电的潜在、流电的水流被监视。从温和蚀刻到穿孔的不同尺寸的坑在与黄铜的接触在边阶和铝的接口的表面上经验丰富。源于流电的腐蚀的腐蚀产品用 XRD 被分析，由于流电的腐蚀的铝上的 pitting 以坑的坑深度，尺寸和密度被加亮，用一台高分辨率显微镜。在海洋的空气的铝黄铜的最赞成的区域比率以 gravimetric 腐蚀率是 8:1，铝黄铜的最不利的区域比率是 1:4。

关键词：海洋大气黄铜相互作用热带铝电偶腐蚀腐蚀行为腐蚀速率

Microporous Hypercross-linked Conjugated Quinonoid Chromophores of Anthracene: Novel Polymers for CO_2 Adsorption

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Chinese Journal of Polymer Science 2015年第2期33卷 224-235页

作者： Rajangam Vinodh Mani Ganesh Mei Mei Peng Aziz Abidov Muthiahpillai palanichamy Wang Seog Cha Hyun-Tae Jang Department of Chemical Engineering Hanseo University Korea Carbon Capture and Sequestration R and D Centre School of Civil and Environmental Engineering Kunsan National University

Microporous hypercross-linked conjugated quinonoid chromophores represent a novel class of amorphous polymers, synthesized by the reaction of anthracene with dimethoxy methane in the presence of FeCl3 catalyst. Their N2 adsorption isotherms confirm their microporous nature. Diffuse reflectance UV-Visible（DRS UV-Vis） spectroscopy confirms their matrix built with the conjugated quinonoids by their broad light absorption characteristics extending from 1000 nm to 200 nm with the absorbance maximum close to 400 nm. The catalyst cross-linked anthracene with ―CH2― bridges and subsequently dehydrogenating them to form quinonoids. Their Fourier transform infrared（FTIR） spectra showed their characteristic quinonoid vibrations between 1600 and 1700 cm-1. The synthesis of polymers was carried out at 30, 40, 50, 60, 70 and 80 ℃, but the quinonoid content of the polymer obtained at 80 ℃ was higher than that of the others. Their scanning electron microscopy（SEM） images showed microspheres of 1 to 5 μm size built with tiny particles. Their surfaces were not smooth. The polymer synthesized at 80 ℃ showed 5.1 wt% CO2 sorption at 25 ℃ and 0.1 MPa, but when it was recross-linked, the CO2 sorption increased to 8 wt%. Hence, hypercross-linked conjugated quinonoid chromophores of anthracene are good for sorption of CO2.

关键词： Anthracene Hypercross-linked polymers CO2 adsorption Friedel-Crafts reaction Quinonoid chromophores

Mitochondrial DNA evidence supports northeast Indian origin of the aboriginal Andamanese in the Late Paleolithic

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Journal of Genetics and Genomics 2011年第3期38卷 117-122页

作者： Hua-Wei Wang Bikash Mitra Tapas Kumar Chaudhuri Malliya gounder palanichamy Qing-Peng Kong Ya-Ping Zhang Laboratory for Conservation and Utilization of Bio-resource Yunnan University Kunming 650091 Yunnan Province China Cellular Immunology Laboratory Department of Zoology University of North Bengal Siliguri West Bengal 734013 India State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 Yunnan Province China KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases Kunming 650223 Yunnan Province China

In view of the geographically closest location to Andaman archipelago, Myanmar was suggested to be the origin place of aboriginal Andamanese. However, for lacking any genetic information from this region, which has prevented to resolve the dispute on whether the aboriginal Andamanese were originated from mainland India or Myanmar. To solve this question and better understand the origin of the aboriginal Andamanese, we screened for haplogroups M31 （from which Andaman-specific lineage M31al branched off） and M32 among 846 mitochondrial DNAs （mtDNAs） sampled across Myanmar. As a result, two Myanmar individuals belonging to haplogroup M31 were identified, and completely sequencing the entire mtDNA genomes of both samples testified that the two M31 individuals observed in Myanmar were probably attributed to the recent gene flow from northeast India populations. Since no root lineages of haplogroup M31 or M32 were observed in Myanmar, it is unlikely that Myanmar may serve as the source place of the aboriginal Andamanese. To get further insight into the origin of this unique population, the detailed phylogenetic and phylogeographic analyses were performed by including additional 7 new entire mtDNA genomes and 113 M31 mtDNAs pinpointed from South Asian populations, and the results suggested that Andaman-specific M31al could in fact trace its origin to northeast India. Time estimation results further indicated that the Andaman archipelago was likely settled by modem humans from northeast India via the land-bridge which connected the Andaman archipelago and Myanmar around the Last Glacial Maximum （LGM）, a scenario in well agreement with the evidence from linguistic and palaeoclimate studies.

关键词： mtDNA Myanmar Aboriginal Andamanese Northeast India Origin