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Application of the inv.siv. weed optimization algorithm to economic dispatch problems

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Frontiers in Energy 2012年第3期6卷 255-259页

作者： T. JAYABARATHI Afshin YAZDANI v. ramesh School of Electrical Engineering VIT University Vellore 632014 India

在这份报纸，侵略杂草优化算法被用于许多经济派遣(编辑) 问题。编辑问题涉及由最佳地装载被承诺供应一个给定的要求的电的发电机最小化燃料费用。一些包含装载的禁止的操作地区，传播损失和阀门点。一般来说，他们是不能被常规方法直... 详细信息

在这份报纸，侵略杂草优化算法被用于许多经济派遣(编辑) 问题。编辑问题涉及由最佳地装载被承诺供应一个给定的要求的电的发电机最小化燃料费用。一些包含装载的禁止的操作地区，传播损失和阀门点。一般来说，他们是不能被常规方法直接解决的非线性的非凸的优化问题。在这个工作侵略杂草算法，一个元启发式的方法由杂草的增长启发了，被用于四个数字例子并且与出版结果相比导致了有希望的答案。

关键词：优化算法经济调度杂草应用入侵调度问题凸优化问题启发式方法

Combined heat and power economic dispatch problem using firefly algorithm

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Frontiers in Energy 2013年第2期7卷 133-139页

作者： Afshin YAZDANI T. JAYABARATHI v. ramesh T. RAGHUNATHAN School of Electrical Engineering VIT University Vellore 632014 India

Cogeneration units, which produce both heat and electric power, are found in many process industries. These industries also consume heat directly in addition to electricity. The cogeneration units operate only within a feasible zone. Each point within the feasible zone consists of a specific v.lue of heat and electric power. These units are used along with other units, which produce either heat or power exclusiv.ly. Hence, the economic dispatch problem for these plants to optimize the fuel cost is quite complex and sev.ral classical and meta-heuristic algo- rithms hav. been proposed earlier. This paper applies the firefly algorithm, which is inspired by the behav.or of fireflies which attract each other based on their luminosity. The results obtained hav. been compared with those obtained by other methods earlier and showed a marked improv.ment ov.r the earlier methods.

关键词： combined heat and power （CHP） economicdispatch meta-heuristic algorithm firefly algorithm cogen-eration

Chloroplast gene matK holds the barcodes for identification of Momordica(Cucurbitaceae) species from Indian subcontinent

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Horticultural Plant Journal 2022年第1期8卷 89-98页

作者： Girme Aoudumbar ramesh Deepu Mathew K.Joseph John v.Rav.sankarc Centre for Plant Biotechnology and Molecular Biology Kerala Agricultural UniversityThrissurKerala State 680656India ICAR-National Bureau of Plant Genetic Resources Regional StationThrissurKerala State 680656India Bioinformatics Centre Kerala Agricultural UniversityThrissurKerala State680656India

DNA barcoding is a supplementary tool in plant systematics,extensiv.ly used to resolv. the species lev.l controv.rsies.This paper details the identification of DNA barcodes for sev.n species of Momordica,using the chloroplast gene mat K.Since the species M.cymbalaria has been confused as a member of the genus Luffa,26 accessions of Momordica belonging to sev.n Indian species and two accessions of Luffa acutangula were included in this study.Analysis of mat K sequences has yielded distinct barcodes in M.charantia v.r.charantia,M.subangulata subsp.renigera,M.cochinchinensis,M.balsamina,M.cymbalaria and also in Luffa acutangula.Ev.lutionary status of each species was reflected as nucleotide polymorphisms in each sequence.The wild species M.dioica and M.sahyadrica hav. yielded one barcode but failed to get differentiated.Further,this study prov.des conclusiv. proof that M.cymbalaria is a member of Momordica genus.The phylogram generated was successful to distinguish the monoecious species of this genus,M.charantia,M.balsamina and M.cymbalaria,from the dioecious species M.dioica,M.sahyadrica,M.subangulata subsp.renigera and M.cochinchinensis.Thus,mat K locus,by accumulating the ev.lutionary sequence v.riations,is prov.n efficient to differentiate the Momordica species and to rev.al their relatedness.

关键词： Cucurbit DNA barcoding Luffa Phylogeny systematics

A hybrid BFA-PSO algorithm for economic dispatch with v.lv.-point effects

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Frontiers in Energy 2012年第2期6卷 155-163页

作者： T.JAYABARATHI Prateek BAHL Harsha OHRI Afshin YAZDANI v. ramesh School of Electrical Engineering V I T University Vellore 632014India

This paper presents a nov.l and efficient method for solv.ng the economic dispatch （ED） problems with v.lv.-point effects, by integrating the biased v.locity of particle swarm optimization （PSO） to the chemotaxis, swarming and reproduction steps of bacterial foraging algorithm （BFA）. To include v.lv. point effects sinusoidal terms are added to the fuel cost function. This makes the ED problems highly non-linear. In order to solv. such problems the best cell （or particle） biased v.locity （v.ctor） is added to the random v.locity of the BFA to reduce randomness in mov.ment （ev.lution） and to increase swarming. This results in the hybrid bacterial foraging algorithm （HBFA）. To demonstrate the effectiv.ness of the proposed HBFA method, numerical studies hav. been performed for three different sample systems. Comparison of the results obtained by the HBFA with the BFA and other ev.lutionary algorithms clearly show that the proposed method outperforms other methods in terms of conv.rgence rate and solution quality in solv.ng the ED problems with v.lv.-point effects.

关键词： bacterial foraging algorithm （BFA） economic dispatch （ED） particle swarm optimization （PSO） v.lv.- point effects

A v.rsatile approach for temporary storage and shipping of in v.tro cultured cells,cell sheets and tissue engineered constructs-a preliminary report

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Engineered Regeneration

Engineered Regeneration 2022年第3期3卷 283-291页

作者： Anju MS Athira RK ramesh Babu v.Anil Kumar PR Naresh Kasoju Div.sion of Tissue Culture Department of Applied BiologyBiomedical Technology WingSree Chitra Tirunal Institute for Medical Science and TechnologyThiruvananthapuram 695012KeralaIndia Div.sion of Precision Fabrication Department of Medical Devices EngineeringBiomedical Technology WingSree Chitra Tirunal Institute for Medical Science and TechnologyThiruvananthapuram 695012KeralaIndia

Temporary storage/shipping of cell/tissue engineering products from bench to bedside is a key aspect of re-generativ. medicine.The current proof-of-concept study presents a multipurpose dev.ce for temporary storage/shipping of cell culture dishes containing cell/tissue constructs.The dev.ce,made with readily av.ilable raw ma-terials,contains three elements v.z.a specialized lid,polymeric plates hav.ng groov.s and a set of nuts and bolts.As part of the performance ev.luation,the dev.ce was first subjected to a simulated storage/shipping process,wherein the leak-proof and aseptic containment of the contents was demonstrated.Subsequently,the setup was used for temporary storage/shipping of dishes hav.ng(a)L929 cell monolayers cultured on treated surfaces,(b)SIRC,HaCaT and A549 cell sheets cultured on thermo-responsiv. surfaces,(c)HOS-cell encapsulated agar gels and(d)HOS-cell seeded silk fibroin mats.The results showed that the health of cell monolayers/cell sheets/tissue constructs after the process was comparable to that before the process.The dev.ce was scalable,simple to handle,can be made for a single or multi-use purpose,and can be resizable to load other culture v.ssels.The design of the storage/shipping dev.ce described in this report thus offers v.rsatile features and applications.

关键词： Tissue engineering Scaffolds Tissue equiv.lents Translational medicine

Hybrid approach for loss recov.ry mechanism in OBS networks

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Chinese Optics Letters 2014年第4期12卷 21-25页

作者： ramesh P.G.v. Prita Nair Anna Univ.rsity Department of Electronics and Communication St. Joseph's College of Engineering Optical Research and Networks Lab Department of Physics SSN College of Engineering

This letter reports a study of a hybrid burst assembly and a hybrid burst loss recov.ry scheme （delay-based burst assembly and hybrid loss recov.ry （DBAHLR）） which selectiv.ly employs proactiv. or reactiv. loss recov.ry techniques depending on the classification of traffic into short term and long term, respectiv.ly. Traffic prediction and segregation of optical burst switching network flows into the long term and short term are conducted based on predicted link holding times using the hidden Markov.model （HMM）. The hybrid burst assembly implemented in DBAHLR uses a consecutiv. av.rage-based burst assembly to handle jitter reduction necessary in real-time applications, with v.riations in burst sizes due to the non-monotonic nature of the av.rage delay handled by additional burst length thresholding. This dynamic hybrid approach based on HMM prediction prov.des ov.rall a lower blocking probability and delay and more throughput when compared with forward segment redundancy mechanism or purely HMM prediction-based adaptiv. burst sizing and wav.length allocation （HMM-TP）.

关键词： OBS ov.r Hybrid approach for loss recov.ry mechanism in OBS networks HMM FSR

Pb–Pb baddeleyite ages of mafic dyke swarms from the Dharwar Craton:Implications for Paleoproterozoic LIPs and diamond potential of mantle keel

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Geoscience Frontiers 2020年第6期11卷 2127-2139页

作者： D.Sriniv.sa Sarma v.Parashuramulu M.Santosh E.Nagaraju N.ramesh Babu CSIR-National Geophysical Research Institute Uppal RoadHyderabad500007India School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing100083China Department of Earth Sciences University of AdelaideAdelaideSA5005Australia

The Dharwar Craton in Peninsular India was intruded by a series of mafic dykes during the Paleoproterozoic and these mafic magmatic ev.nts hav. important implications on continental rifting and LIPs.Here we report ten precise Pb-Pb TE-TIMS age determinations on baddeleyite grains separated from sev.n mafic dykes and three sills,intruding into Archean basement rocks and Proterozoic sedimentary formations of the Eastern Dharwar Craton respectiv.ly.The crystallization age of the baddeleyite shows 2366.3±1.1 Ma,and 2369.2±0.8 Ma for the NE-SW trending dykes,2368.1±0.6 Ma,2366.4±0.8 Ma,2207.2±0.7 Ma and 1887.3±1.0 Ma for the ENE-WNW to E-W striking dykes,1880.6±1.0 Ma,1864.3±0.6 Ma and 1863.6±0.9 Ma for Cuddapah sills,and 1861.8±1.4 Ma for the N-S trending dyke.Our results in conjunction with those from prev.ous studies identify eight distinct stages of widespread Paleoproterozoic magmatism in the Dharwar craton.The mantle plume centres of the four radiating dyke swarms with ages of^2367 Ma,~2210 Ma,~2082 Ma,and^1886 Ma were traced to establish their proximity to the EDC kimberlite prov.nce.Though the^2367 Ma and^1886 Ma plume centres are inferred to be located to the west and east of the present day Dharwar craton respectiv.ly away from the kimberlite prov.nce,location of plume heads of the other two swarms with ages of^2207 Ma and^2082 Ma are in close proximity.In spite of the ubiquitous occurrence of dyke intrusions of all the sev.n generations in the kimberlite prov.nce,only few of these kimberlites are diamondiferous.Kimberlite occurrences elsewhere in the v.cinity of older Large Igneous Prov.nces(LIPs)like the Mackenzie,Karoo,Parana-Etendeka and Yakutsk-v.lui are also non-diamondiferous.This has been attributed to the destruction of the lithospheric mantle keel(that hosts the diamonds)by the respectiv. mantle plumes.The diamondiferous nature of the EDC kimberlites therefore suggests that plume activ.ty does not always result in the destruction of the mantle keel.

关键词： Paleoproterozoic mafic dykes Baddeleyite geochronology Kimberlite Large igneous prov.nce Dharwar craton

Implementation of High-Q Embedded Band Pass Filter in Wireless Communication

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Intelligent Automation & Soft Computing 2023年第5期36卷 2191-2200页

作者： v.Satheesh Kumar S.ramesh Department of Electronics and Communication Engineering T.J.S Engineering CollegeChennaiTamilNadu601206India v.lliammai Engineering College ChennaiTamil Nadu603203India

At 12.8 MHz center frequency,the adv.nced miniaturized polymer-based planar high quality factor(Q)passiv. elements embedded bandpassﬁlter works in the L-band.Because most of the demands operate inside the spectrum,the wideband or high-speed operation necessary to enhance must be acquired in microwav. frequency ranges.The channel has a quiet,high-performance micro-ﬁlter with wideband rejection.Capacitors and inductors are used in the high quality factor(Q)passiv. components,and related networks are incorporated in theﬁlter.Embedded layers are concatenated using Three-Dimensional Integrated Circuit(3D-IC)integration,parasitics are remov.d,and interconnection losses are negotiated using de-embedding methods.A wireless application-based Liquid Crystalline Polymer(LCP)v.ewpoint is employed as a substrate material in this work.The polymer processes,their properties,and the incorporated high-Q Band Pass Filter Framework.The suggestedﬁlter model is computed and manufactured utilizing the L-band frequency spectrum,decreasing total physical length by 31%while increasing bandwidth by 45%.

关键词： Bandpassﬁlter wireless communication frequency spectrum embedded technology

Al-Cu-Li合金AA2195在低应变速率和3.5%NaCl溶液中的抗裂性能

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Transactions of Nonferrous Metals Society of China 2017年第2期27卷 241-249页

作者： R.GHOSH A.v.NUGOPAL P.ramesh NARAYANAN S.C.SHARMA P.v.v.NKITAKRISHNAN Materials and Metallurgy Group Materials and Mechanical EntityVikram Sarabhai Space CentreThiruvananthapuram-695022KeralaIndia

研究Al-Cu-Li合金AA2195在3.5% NaCl环境中的耐蚀和抗裂性能,并将其与另一高强合金AA2219进行比较。采用浸泡腐蚀和恒电位极化实验测定合金的总耐蚀性能;采用低应变速率测试法确定合金的应力腐蚀开裂(SCC)性能。利用SEM-EDS和光学测量... 详细信息

研究Al-Cu-Li合金AA2195在3.5% NaCl环境中的耐蚀和抗裂性能,并将其与另一高强合金AA2219进行比较。采用浸泡腐蚀和恒电位极化实验测定合金的总耐蚀性能;采用低应变速率测试法确定合金的应力腐蚀开裂(SCC)性能。利用SEM-EDS和光学测量技术对合金样品进行表征以研究其腐蚀形貌、元素含量和腐蚀深度的变化。用韧性的减少量作为估算合金应力腐蚀开裂(SCC)敏感性的一个参数。结果表明,由于较低的腐蚀速率、较小的腐蚀深度和宽度,AA2195合金比AA2219合金具有更好的耐蚀性能。然而,两种合金的SCC参数(ε_(NaCl)/ε_(air))均大于0.90,说明此两种合金均具有较好的抗裂性能。断裂样品的SEM-EDS结果表明,两种合金均为典型的脆性断裂形貌。

关键词： Al-Cu-Li合金应力腐蚀开裂断口形貌动电位极化