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Economic Analysis of Demand Response Incorporated Optimal Power Flow

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Intelligent Automation & soft Computing 2023年第1期35卷 399-413页

作者： Ulagammai meyyappan s.Joyal Isac Department of EEE Saveetha Engineering CollegeChennai602105India

Demand Response(DR)is one of the most cost-effective and unfailing techniques used by utilities for consumer load *** research paper presents different DR programs in deregulated *** description and the classification of DR along with their potential benefits and associated cost components are *** addition,most DR measurement indices and their evaluation are also ***,the economic load model incorporated thermal,wind,and energy storage by considering the elasticity market price from its calculated locational marginal pricing(LMP).The various DR programs like direct load control,critical peak pricing,real-time pricing,time of use,and capacity market programs are considered during this *** effect of demand response in electricity prices is highlighted using a simulated study on IEEE 30 bus *** is done by the shuffled Frog Leap Algorithm(sFLA).Comprehensive performance comparison on voltage deviations,losses,and cost with and without considering DR is also presented in this paper.

关键词： Demand response wind power generation shufﬂed frog leap algorithm optimal powerﬂow

Influence of Na_(2)siO_(3)/NaOH Ratio on Calcined Magnesium silicate Based Geopolymer——Experimental and Predictive study

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Journal of Wuhan University of Technology(Materials science) 2023年第5期38卷 1077-1085页

作者： Premkumar R Ramesh Babu Chokkalingam meyyappan PL shanmugasundaram M Kalasalingam Academy of Research and Education Krishnan KoilTamil Nadu626126 India Vellore Institute of Technology-Chennai Tamilnadu600127 India

This study aims to investigate the behavior of alkali activated mortar,which is made of naturally available magnesium silicate as source *** magnesium silicate,ultrafine natural steatite powder(UFNsP)is used as the primary source of binder,and the activation is initiated through the alkali liquid which is proportioned in various combinations of silicate to hydroxide ratio(Na_(2)siO_(3)/Na OH)ratio,and this ratio in this study varies from 1 to *** UFNsP is calcined at two difierent temperatures,700 and 1000℃.The mortar mix is proportioned as 1:3 between powder and the fine aggregate,and the mortar is prepared with hydroxide molarity(M)of 10 *** mortar is cured for 48 hours at 60℃and the compressive strength was *** the mix were studied for its microstructural behavior along with compressive *** mix proportion of the mortar,and the results obtained through microstructural characterization were combinedly formed as input for artificial neural network(ANN)predictive *** model is designed to predict the compressive strength,which is trained through Bayesian regularization algorithm with varying hidden neurons of 7 to *** experimental and predictive study shows that the strength is influenced by both Na_(2)siO_(3)/Na OH ratio and calcination *** the ANN is influenced by mainly calcination temperature and uncorrelation occurs in selected samples of 1000℃calcined UFNsP mix.

关键词： magnesium silicate silicate alkali activation geopolymer UFNsP prediction

Bio-interface behaviour of graphene and semiconducting sWCNT:C60 blend based nano photodiode for subretinal implant

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Biosurface and Biotribology 2020年第2期6卷 53-58页

作者： Moorthy Vijai meyyappan Varadarajan Parthasarathy Rathnasami Joseph Daniel NPMass MEMs Design Centre Department of Electronics and Instrumentation EngineeringFaculty of Engineering&TechAnnamalai UniversityAnnamalainagar608002TamilnaduIndia Centre for cell Biology and Drug Discovery Faculty of Engineering&TechAnnamalai UniversityAnnamalainagar608002TamilnaduIndia

Hybrid interfaces between living cells and organic conjugated polymers play a pivotal role in bioelectronics ***,conjugated polymers are widely utilised for optical stimulation of living cells and other bio-interface applications such as neural probes,cellular scaffolds and biosensors for drug *** such a work,the authors fabricated and characterised the Nano Photodiode array device for the subretinal ***,the authors did not discuss in their report about the biocompatibility of this new *** this work,the authors manifest that the quintessential graphene electrode and polymer blend of semiconducting single-wall carbon nanotube and C60 fullerene(s-sWCNT:C60)sustains its optoelectronic properties all through the various strides for neural ***,the studies show that these materials can provide a favourable environment for cell proliferation and a high degree of ***-12 cells used as a valuable model to validate the biocompatibility were grown successfully onto the s-sWCNT:C60 active layer still preserving its optical and electrical *** improved electrical performance of nano photodiode made of graphene,s-sWCNT:C60 established in the previous studies and the excellent bio-interface performance of this nano photodiode shows that the nano photodiode array proposed by the authors is a strong candidate for subretinal implants.

关键词： interface optoelectronic neural

On-the-fly dopant redistribution in a silicon nanowire p-n junction

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Nano Research 2017年第8期10卷 2845-2855页

作者： Dong-II Moon Myeong-Lok seol Jin-Woo Han M. meyyappan Center for Nanotechnology NASA Ames Research Center Moffett Field CA 94035 USA

Dopant redistribution in a silicon nanowire （siNW） p-n junction is found to occur owing to self-heating effects. A siNW is doped to form back-to-back diodes and is thermally isolated by an oxide layer on its bottom side and by air on the other sides. When a high level of current flows, the inner body temperature is found to increase enough to cause dopant diffusion and even to reach the silicon melting point due to Joule heating. This experimentally observed electrothermal behavior is also validated through numerical simulation. The conductivity change is dependent on the total power density and the change becomes permanent once the device suffers self-heating beyond a threshold point. Finally, the dopant redistribution is directly visualized using scanning capacitance microscopy for the first time.

关键词： nanowire degradation Joule heating dopant redistribution scanning capacitance microscopy

Contrast-enhanced multidetector computed tomography features and histogram analysis can differentiate ameloblastomas from central giant cell granulomas

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World Journal of Radiology 2022年第9期14卷 329-341页

作者： Adarsh Ghosh meyyappan Lakshmanan smita Manchanda Ashu seith Bhalla Prem Kumar Ongkila Bhutia Asit Ranjan Mridha Department of Radiology Children's Hospital of PhiladelphiaPhiladelphiaPA 19104United States Department of Radiology All India Institute of Medical SciencesNew Delhi 110029India Department of Radiodiagnosis All India Institute of Medical SciencesNew Delhi 110029India Department of Oral&Maxillofacial surgery All India Institute of Medical SciencesNew Delhi 110029India Department of Pathology All India Institute of Medical SciencesAnsari NagarNew Delhi 110029India

BACKGROUND No qualitative or quantitative analysis of contrast-enhanced computed tomography(CT)images has been reported for the differentiation between ameloblastomas and central giant cell granulomas(CGCGs).AIM To describe differentiating multidetector CT(MDCT)features in CGCGs and ameloblastomas and to compare differences in enhancement of these lesions qualitatively and using histogram *** MDCT of CGCGs and ameloblastomas was retrospectively reviewed to evaluate qualitative imaging *** analysis was used to compare the extent of enhancement of the soft ***’s exact tests and Mann–Whitney U test were used for statistical analysis(PsULTs Twelve CGCGs and 33 ameloblastomas were *** had a predilection for the posterior mandible with none of the CGCGs involving the *** were multilocular(58.3%),with a mixed lytic sclerotic appearance(75%).soft tissue component was present in 91%of CGCGs,which showed hyperenhancement(compared to surrounding muscles)in 50%of cases,while the remaining showed *** mineralization was present in 83.3%of *** presented as a unilocular(66.7%),lytic(60.6%)masses with solid components present in 81.8%of ***,the solid component showed isoenhancement in 63%.No matrix mineralization was present in 69.7%of ***,the enhancement of soft tissue in CGCG was significantly higher than in ameloblastoma on histogram analysis(P49.05 HU in the tumour providing 100%sensitivity and 85%specificity in identifying a *** A multilocular,lytic sclerotic lesion with significant hyperenhancement in soft tissue,which spares the angle of the mandible and has matrix mineralization,should indicate prospective diagnosis of CGCG.

关键词： Ameloblastoma Granuloma Giant cell Multidetector CT