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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

Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

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： LFRSc trapezoidal cavity absorber overall heat loss coefficient concentrated radiation

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

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/P Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

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

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

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