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Optimization of Cognitive Femtocell Network via Oppositional Beetle Swarm Optimization Algorithm

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Intelligent Automation & Soft Computing 2023年第4期36卷 819-832页

作者： K.Rajesh Kumar m.vijayakumar Department of ECE Adhiyamaan College of EngineeringHosurTamilnaduIndia Department of EEE K.S.R.College of EngineeringTiruchengodeTamilnaduIndia

In past decades,cellular networks have raised the usage of spectrum resources due to the victory of mobile broadband *** devices create massive data than ever before,facing the way cellular networks are installed pre-sently for satisfying the increased trafﬁc *** development of a new exclusive spectrum offered to meet up the trafﬁc requirements is challenging as spectrum resources are limited,hence *** radio technology is pre-sented to increase the pool of existing spectrum resources for mobile users via Femtocells,placed on the top of the available macrocell network for sharing the same ***,the concurrent reuse of spectrum resources from Femto networks poses destructive interference on macro *** resolve this issue,this paper introduces an optimal channel allocation model using the Oppo-sitional Beetle Swarm Optimization Algorithm(OBSOA)to allocate the channel with interference avoidance.A new OBSOA is derived in this paper by the inclu-sion of opposition-based learning(OBL)in *** algorithm allocates the channels used by PUs(PUs)to the secondary users(SUs)in such a way that inter-ference is *** proposed approach is implemented in the mATrix LABoratory(mATLAB)*** performance of this proposed approach is evaluated in terms of several measures and the experimental outcome veriﬁed the superior nature of the OBSOA-based channel allocation *** mod-el has resulted in a maximum signal-to-interference-plus-noise ratio value of 86.42 dB.

关键词： Femto networks channel allocation spectrum reuse cognitive network

And-hyperglycemic activity of leaves extract of Hyptis suavcolens *** in streptozotocin induced diabetic rats

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Asian Pacific Journal of Tropical medicine 2011年第9期4卷 689-693页

作者： Shanti Bhushan mishra Amita Verma Alok mukerjee vijayakumar m United Institute of Pharmacy UCERAllahabadIndia Faculty of Health Medical SciencesIndigenous & Alernative Systems of MedicineShiatsAllahabadIndia United Institute of Pharmacy UCER.AllahabadIndia Ethnopharmacology Division.National Botanical Research Institute LucknowIndia

Objective:To evaluate the antihyperglycemic activity of leaves of Hyptis suaveolens using streptozotocin ***:Hyptis suaveolens extract(HSE) 250 and 500 mg/kg body weight was administered orally to streptozotocin induced diabetes,once daily for 21 ***:A significant reduction in blood glucose was observed in diabetic animals treated with HSE at different doses when compared with diabetic *** of triglyceride,total cholesterol,low density *** low density lipoprotein were decreased while administering HSE at different doses,compared with their control values in diabetic ***:Our results show that HSE possesses significant antihyperglycemic activity which might be attributed to stimulating effects on glucose utilization and antioxidant enzyme.

关键词： Hyptis suaveolens Antidiabetic Ethanolic extract Glibenclamide Streptozotocin

Enhanced Perturb and Observe Control Algorithm for a Standalone Domestic Renewable Energy System

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Intelligent Automation & Soft Computing 2023年第8期37卷 2291-2306页

作者： N.Kanagaraj Obaid martha Aldosary m.Ramasamy m.vijayakumar Electrical Engineering Department College of Engineering in Wadi Al-dawasirPrince Sattam Bin Abdulaziz UniversityWadi Al-dawasir11991Saudi Arabia Department of Electrical and Electronics Engineering K.S.R.College of EngineeringTiruchengode637215India

The generation of electricity,considering environmental and eco-nomic factors is one of the most important challenges of recent *** this article,a thermoelectric generator(TEG)is proposed to use the thermal energy of an electric water heater(EWH)to generate electricity *** improve the energy conversion efficiency of the TEG,a fuzzy logic con-troller(FLC)-based perturb&observe(P&O)type maximum power point tracking(mPPT)control algorithm is used in this *** EWH is one of the major electricity consuming household appliances which causes a higher electricity price for ***,a significant amount of thermal energy generated by EWH is wasted every day,especially during the winter *** recent years,TEGs have been widely developed to convert surplus or unused thermal energy into usable *** this context,the proposed model is designed to use the thermal energy stored in the EWH to generate *** addition,the generated electricity can be easily stored in a battery storage system to supply electricity to various household appliances with *** proposed mPPT control algorithm helps the system to quickly reach the optimal point corresponding to the maximum power output and maintains the system operating point at the maximum power output *** validate the usefulness of the proposed scheme,a study model was developed in the mATLAB Simulink environment and its performance was investigated by simulation under steady state and transient *** results of the study confirmed that the system is capable of generating adequate power from the available thermal energy of *** was also found that the output power and efficiency of the system can be improved by maintaining a higher temperature difference at the input terminals of the ***,the real-time temperature data of Abha city in Saudi Arabia is considered to analyze the feasibility of the proposed system for practical implementation.

关键词： Perturb and observe control algorithm fuzzy logic controller energy conversion efficiency maximum power point tracking thermoelectric generator

Evaluation of chemopreventive effect of Fumaria indica against N-nitrosodiethylamine and CCl_4-induced hepatocellular carcinoma in Wistar rats

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Asian Pacific Journal of Tropical medicine 2012年第8期5卷 623-629页

作者： Talib Hussain Hefazat H Siddiqui Sheeba Fareed m vijayakumar Chandana V Rao Department of Pharmacology and Toxicology Faculty of PharmacyIntegral Universitykursi roadLucknow-226026Uttar PradeshIndia Pharmacognosy and Ethnopharmacology Division National Botanical Research Institute(CSIR)Rana Pratap MargP.B.No.436Lucknow 226 001Uttar PradeshIndia

Objective:To investigation the chemopreventive potential of Fumaria indica（***） extract（FIE） on N-nitrosodiethylamine and CCl4-induced hepatocarcinogenesis in Wislar ***:The experimental animals were divided into six groups（n=6）.Hepatocellular carcinoma was induced by single intraperitoneal injection of N-nitrosodiethylamine（NDEA） in normal saline at a dose of 200 mg/kg body weight followed by weekly subcutaneous injections of CCl4（3 mL/kg/week） for 6 weeks,as the promoter of carcinogenic *** administration of the carcinogen,200 and 400 mg/kg of FIE were administered orally once a day throughout the *** the end of 20 weeks,the body weight,liver weight and relative liver weight were *** percentage of nodule incidence and liver cancer markers such as aspartate transaminase（AST）,alanine transaminase（ALT）,alkaline phosphatase（ALP）,γ-glutamyl transferase（γ-GT）,total bilirubin level（TBL）,α-feto protein（AFP） and carcinoembryonic antigen were estimated along with histopathological investigation in experimental groups of rats. Results:Obtained results demonstrated that the cotreatment with FIE significantly prevented the decrease of the body weight and also increased in relative liver weight caused by NDEA. The treatment with FIE significantly reduced the nodule incidence and nodule multiplicity in the rats after NDEA *** levels of liver cancer markers such as AST,ALT,ALP,γ-glutamyl transferase,TBL,AFP and carcinoembryonic antigen were substantially increased by NDEA ***,FIE treatment significantly reduced the liver injury and restored the entire liver cancer *** observations of liver tissues too correlated with the biochemical ***:These finding powerfully supports that *** exert chemopreventive effect by suppressing the tumor burden and restoring the activities of hepatic cancer marker enzymes on NDEA and CCl4-induced hepatocarcinogenesis in Wis

关键词： Fumaria indica Hepatocellular carcinoma N-nitrosodiethylamine Alkaline phosphatase α-feto protein

Nephroprotective activity of Solanum xanthocarpum fruit extract against gentamicin-induced nephrotoxicity and renal dysfunction in experimental rodents

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Asian Pacific Journal of Tropical medicine 2012年第9期5卷 686-691页

作者： Talib Hussain Ramesh K Gupta K Sweety Bavani Eswaran m vijayakumar Chandana Venkateswara Rao Pharmacognosy and Ethnopharmacology Division National Botanical Research InstituteLucknowUttar Pradesh226001India Department of Pharmacology and Toxicology Faculty of PharmacyIntegral UniversityLucknowUttar Pradesh226001India

Objective:To evaluate nephroprotective potential of Solarium xanthocarpum(***) fruit extract(SXE) against gentamicin(Gm) induced nephrotoxicity) and renal dysfunction. methods:Twenty-four Wistar rats were divided into four groups(n=6).Control rats that received normal saline(i.p.) and 0.5%carboxymethyl cellulose(p.o.) per day lor 8 *** was induced in rats by intraperitoneal administration of Gm(100 mg/kg/d for 8 d) and were treated with SXE(200 and 400 mg/kg/d(p.o.) for 8 d).Plasma and urine urea and creatinine,kidney weight,urine output,blood urea nitrogen,renal enzymatic and non-enzymatic antioxidants and lipid peroxidation was evaluated along with histopathological investigation in various experimental groupsof ***:It was observed that the Gm treatment induced significant elevation(Pma and urine urea,creatinine,kidney weight,blood urea nitrogen, renal lipid peroxidation along with significant decrement(Pmatic and non-enzymatic *** 200 and 400 mg/kg treatment to Gm treated rats recorded significant decrement(up to Pma and mine urea and creatinine, renal lipid peroxidation along with significanl increment(up to Pmatic and non-enzvmatic *** obsenatioiis of kidney tissues too correlated with the biochemical ***:These finding powerfully supports that S,xanthocarpum fruit extract acts in the kidney as a potent scavenger of free radicals to prevent the toxic effects of Gm both in the biochemical and histopathological parameters and thus validates its elhnomedicinal use.

关键词： Solanum xanthocarpum Gentamicin Antioxidants Nephrotoxicity Renal dysfunction

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水稻广亲和基因的鉴定和利用

国外作物育种 2001年第2期20卷 3-4页

作者：向平 C.H.m.vijayakumar 等

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水稻恢复系的培育和评价与其杂种优势的关系

国外作物育种 2004年第5期23卷 10-11页

作者： C.H.m.vijayakumar 谢国禄

支配杂种优势的遗传机制是复杂的，并且还没有了解清楚。但是有些研究已鉴别到能显著降低或提高杂种优势水平的等位基因。本文报道父本(恢复系)的分布模式和杂种优势问的关系以及控制杂种优势的基因的遗传。第一组试验材料由116个已知... 详细信息

支配杂种优势的遗传机制是复杂的，并且还没有了解清楚。但是有些研究已鉴别到能显著降低或提高杂种优势水平的等位基因。本文报道父本(恢复系)的分布模式和杂种优势问的关系以及控制杂种优势的基因的遗传。第一组试验材料由116个已知恢复系(具有WA胞质雄不育系统)构成；

关键词：杂种优势恢复系水稻培育雄不育系胞质父本基因分布模式遗传机制

PV based water pumping system for agricultural irrigation

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Frontiers in Energy 2016年第3期10卷 319-328页

作者： T A BINSHAD K vijayakumar m KALEESWARI Department of Electrical Engineering Malaviya National Institute of Technology Jaipur 302017 India Department of Electrical Engineering Poomima University Jaipur302017 India

This paper investigates the operation and analysis of the photovoltaic water pumping system in detail. Power electronic controllers were designed and developed for the water pumping system using a boost converter along with an inverter followed by an induction motor pump set. The proposed system could be employed in agricultural irrigation under any operating condition of varying natures of solar irradiances and temperatures. The configuration and implementation of the system were described in detail. Further, the detailed method of analysis and simulation characteristics of such PV water pumping system was also presented. With the concern of shortage of fossil fuel, global warming and energy security, the proposed PV based water pumping significant demand of electricity agricultural sector. system can meet the and serve for the

关键词： photovoltaic water pumping system power electronic controller solar irradiances and temperature

Simultaneous Enhancement of Transparent and Antibacterial Properties of ZnO Films by Suitable F Doping

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Journal of materials Science & Technology 2015年第7期31卷 759-765页

作者： S.Snega K.Ravichandran m.Baneto S.vijayakumar Post Graduate & Research Department of Physics AVVM Sri Pushpam College(Autonomous) CUER-UL Universite de LomeFaculte Des Sciences Post Graduate & Research Department of Botany and microbiology AVVM Sri Pushpam College(Autonomous)

Undoped and fluorine doped ZnO （ZnO：F） thin films were deposited onto glass substrates by employing a simplified spray pyrolysis technique using a perfume atomizer. The fluorine doping level in the starting solution was varied from 0 to 20 at.% in steps of 5 at.~g and the effects of fluorine doping level on the structural, optical, surface morphological properties along with their antibacterial activity against Escherichia coil （E. coli） and Bacillus subtilis （B. subtilis） bacteria were studied and reported. The X-ray diffraction studies revealed that despite the orientation ofcrystallites was strongly influenced by fluorine doping, the preferential orientation was retained in favor of （002） plane even at the highest doping level. The crystallite size decreased as the F doping level was increased and the reason for this variation has been explained on the basis of Zener pinning effect. The average optical transparency in the visible range was about 80%-90g for doped films and the optical band gap was found to be slightly increased with the F doping level. The antibacterial efficiency of the F doped ZnO films was found to be enhanced as the F doping level was increased. The antibacterial efficiency was more pronounced in the case of B. subtilis （Gram-positive） when compared with E. coil （Gram-negative）.

关键词： ZnO filmAntibacterial activitySpray pyrolysisDoping