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Intensification of Power Quality Using PMSG and cascaded Multi cell Trans-Z-Source Inverter

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circuits and Systems 2016年第11期7卷 3778-3793页

作者： E. Rajendran Dr. c. Kumar Dr. P. suresh Anna University Chennai India Department of EEE SKP Engineering College Tiruvannamalai India Sri Ranga Poopathi college of Engineering Alampoondi India National college of Engineering Tirunelveli India

This script depicts the power quality intensification of Wind Energy Transfer System (WETS) using Permanent Magnet Synchronous Generator (PMSG) and cascaded Multi cell Trans-Z-Source Inverter (cMcTZSI). The PMSG knocks the induction generator and earlier generators, because of their stimulating performances without taking the frame power. The Trans-Z-Source Inverter with one transformer and one capacitor is connected newly. To increase the boosting ratio gratuity a cascaded impression is proposed with adopting multi-winding transformer which provides an option for this manuscript to use coupled inductor as an alternative of multi-winding transformer and remains the matching voltage gain as cascaded multi cell trans-Z- source inverter. Accordingly the parallel capacitances are also balancing the voltage gain. The parallel correlation of the method is essentially to trim down the voltage stresses and to improve the input current gain of the inverter. By using MALAB Simulation, harmonics can be reduced up to 1.32% and also Dc side can be boosted up our required level 200 - 1000 V achievable. The new hardware setup results demonstrate to facilitate the multi cell Trans Z-source inverter. This can be generated high-voltage gain [50 V - 1000 V] and also be credible. Moreover, the level of currents, voltages and Harmonics on the machinery is low.

关键词： Neuro Fuzzy System (NFS) Permanent Magnet Synchronous Generator (PMSG) cascaded Multi cell Trans-Z-Source Inverter (cMcTZSI) Wind Energy Transfer System (WETS)

Unravelling Effects of Temperature and Soil Moisture Stress Response on Development of Dry Root Rot [<i>Rhizoctonia bataticola</i>(Taub.)] Butler in chickpea

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American Journal of Plant Sciences 2013年第3期4卷 584-589页

作者： Mamta Sharma suresh Pande International crops Research Institute for the Semi-Arid Tropics Patancheru India.

Erratic rainfalls and rise in temperature have become more frequent under the changing scenario of climate particularly in semiarid tropics. As a consequence of it, a drastic shift of chickpea diseases have been recorded throughout the major chickpea growing regions in India and elsewhere. Dry root rot (DRR) caused by Rhizoctonia bataticola (Taub.) Butler [Pycnidial stage: Macrophomina phaseolina (Tassi) Goid] was found as a potentially emerging constraint to chickpea production than wilt (Fusarium oxysporum f. sp. ciceris). Increasing incidence of DRR indicate strong influence of climate change variables such as temperature and moisture on the development of disease. The present study therefore was conducted to quantify the role of temperature and soil moisture associated with infection, colonization and development of DRR under controlled environment. The DRR incidence was significantly affected by high temperature and soil moisture deficit. Out of five temperature regimes (15?c, 20?c, 25?c, 30?c and 35?c) and four moisture levels (40%, 60%, 80% and 100%), a combination of high temperature (35?c) and soil moisture content (60%) predisposes chickpea to DRR. The study clearly demonstrates that high temperature coupled with soil moisture deficit is the climate change variables predisposing chickpea to R. bataticola infection, colonization and development.

关键词： chickpea climate change Drought Dry Root Rot Soil Moisture Temperature

Anticancer efficacy of 3-(4-isopropyl)benzylidene-8-ethoxy,6-methyl,chroman-4-one(SBL-060),a novel,dual,estrogen receptor-Akt kinase inhibitor in acute myeloid leukemia cells

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Oncology Research 2021年第3期29卷 149-157页

作者： MESFER AL SHAHRANI PRASANNA RAJAGOPALAN MOHAMMAD ABOHASSAN MOHAMMAD ALSHAHRANI YASSER ALRAEY REEM MGAHTANI suresh RADHAKRISHNAN KHLOOD DAGREERY Department of clinical Laboratory Sciences College of Applied Medical SciencesKing Khalid UniversityAbhaSaudi Arabia central Research Laboratory College of Applied Medical SciencesKing Khalid UniversityAbhaSaudi Arabia PG and Research Department of chemistry Presidency CollegeChennaiTamil NaduIndia Regional Laboratory and central Blood Bank JazanSaudi Arabia

Estrogen receptor(ER)αis expressed in a subset of patient-derived acute myeloid leukemia(AML)cells,whereas Akt is predominantly expressed in most types of *** AML with dual inhibitors is a novel approach to combat the ***,we examined a novel small molecule,3-(4-isopropyl)benzylidene-8-ethoxy,6-methyl,chroman-4-one(SBL-060),capable of targeting AML cells by inhibiting ERαand Akt *** chemical properties of SBL-060 were identified by proton nuclear magnetic resonance(^(1)H-NMR),^(13)c-NMR,and mass *** silico docking was performed using an automated protocol with ***-1 and HL-60 cell lines were differentiated using phorbol 12-myristate ***αinhibition was assessed using *** MTT assay assessed cell *** cytometry was performed for cell cycle,apoptosis,and p-Akt *** analysis identified the compound as 3-(4-isopropyl)benzylidene-8-ethoxy,6-methyl,chroman-4-one,which showed high binding efficacy toward ER,with aΔG_(binding) score of−7.4 kcal/***-060 inhibited ERα,exhibiting Ic50 values of 448 and 374.3 nM in THP-1 and HL-60 cells,*** inhibited cell proliferation,GI50 values of SBL-060 were 244.1 and 189.9 nM for THP-1 and HL-60 cells,*** addition,a dose-dependent increase in sub G_(0)/G_(1) phase cell cycle arrest and total apoptosis was observed after treatment with SBL-060 in both cell ***-060 also dose-dependently increased the p-Akt-positive populations in both THP-1 and HL-60 *** results indicate that SBL-060 has excellent efficacy against differentiated AML cell types by inhibiting ER and Akt kinase,warranting further preclinical evaluations.

关键词： Akt kinase AML THP-1 HL-60 Estrogen receptor Benzylidene compounds

Slurry Erosive Wear Behavior of Plasma Sprayed Inconel-718 coatings on Al6061 Alloy

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Journal of Minerals and Materials characterization and Engineering 2011年第5期10卷 445-453页

作者： c.S. Ramesh suresh Kumar D.S. Devaraj R. Keshavamurthy Department of Mechanical Engineering PES Institute of Technology Bangalore KarnatakaIndia Department of Mechanical Engineering SBMJCE Ramanagaram District. Karnataka India

Plasma Sprayed coatings provide protection against corrosion, erosion and wear. Inconel- 718 is a metallic coating which has good wear and erosion resistance. This is plasma sprayed on to Al6061 substrate and then subjected to slurry erosive wear tests. It is observed that the slurry wear rates of Al6061 decreased on coating the substrate material with Inconel- 718.

关键词： Plasma spray Inconel- 718 Al6061 Erosion.

Geochemical elements in suspended particulate matter of Ensenada de La Paz Lagoon,Baja california Peninsula,Mexico:Sources,distribution,mass balance and ecotoxicological risks

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Journal of Environmental Sciences 2024年第2期136卷 422-436页

作者： Sandra Soledad Morales-García Pilar de Acacia Pérez-Escamilla suresh Babu Sujitha Pichaimani Godwyn-Paulson Andrés Felipe Zuniga-cabezas Muthuswamy Ponniah Jonathan Instituto Politécnico Nacional(IPN) Centro Mexicano para la Producción más Limpia(CMPL)Av.Acueducto s/nCol.Barrio la Laguna TicománDel Gustavo A.MaderoC.P.07340Ciudad de MéxicoMexico Instituto Politécnico Nacional(IPN) Escuela Superior de Ingeniería y Arquitectura(ESIA)Unidad Ticomán***án 600Delg.Gustavo A.MaderoC.P.07340Ciudad de México(CDMX)Mexico Instituto Politécnico Nacional(IPN) Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo(CIIEMAD)Calle 30 de Junio de 1520Barrio la Laguna TicománDel.Gustavo A.MaderoC.P.07340Ciudad de MéxicoMéxico

The present study aimed to evaluate multi-element concentrations(Al,As,ca,cd,co,cr,cu,Fe,Mg,Mn,Mo,Ni,Pb,Sr)in suspended particulate material(SPM)collected from Ensenada de La Paz(ELP)lagoon,Baja california Sur,Mexico in two different periods(September and May)to comprehend their origin,geochemical behavior,mass transfer and associated ecotoxicological *** 24 hr variation coefficient of volumetric SPM levels were found to be 51.7%in September and 40.5%in May,signifying the effects of oceanic *** calculated enrichment factor(EF)values for all the studied elements were of higher magnitude because of the high surface area and oxide nature of SPM,and in this study,Mo had the highest EF of 46.77 probably due to its origin from continental *** the ecotoxicological perspective,the integrated toxic risk index revealed low toxic risk to the benthic ***,the mean-ERM-Quotient calculated using the particulate concentrations of As,cd,cr,cu,Ni,Pb indicated 9%probability of toxicity to *** comprehensive geochemical and ecotoxicological assessment of particulate metal concentrations in the ELP lagoon signify low to moderate contamination.

关键词： Suspended particulate material Heavy metals Risk assessment Mass transfer Ensenada de La Paz

Palaeodepositional environment,implications of Glossopteris flora,and organic matter characteristics from the Lower Permian,Karo Open cast Mine,East Bokaro coalfield,Damodar Basin,India

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Journal of Palaeogeography 2024年第3期13卷 528-546页

作者： Sankar suresh Kumar Pillai Rose Ann Sebastian Runcie Paul Mathews Srikanta Murthy Anju Saxena Mrutyunjaya Sahoo Suraj Kumar Sahu Gulshan Kumar Dhingra Birbal Sahni Institute of Palaeosciences 53 University RoadLucknow-226007UPIndia Academy of Scientific and Innovative Research(AcSIR) Ghaziabad-201002India Department of Geology School of Earth Science SystemsCentral University of KeralaKasaragod-671316KeralaIndia Department of Geology Ravenshaw UniversityCuttack-753003OdishaIndia Department of Botany Sri Dev Suman Uttarakhand UniversityUttarakhand-249145India

The present study deals with the Early Permian floral diversity,palaeoenvironment,palaeoclimate and depositional setting using a multiproxy approach that includes morphotaxonomy,palynology,and organic geochemistry of Karo OcM(Open cast Mine),East Bokaro coalfield,Damodar Gondwana Basin,*** Permian sediments of Peninsular India are widely regarded as fluvial,along with some marine *** macroplant fossil assemblage exhibits the presence of Glossopteridales,comprising Glossopteris,Gangamopteris,and Vertebraria,as well as coniferales,which includes *** palynological assemblage encompasses the dominance of the striate bisaccate pollen Faunipollenites *** the subdominance of the non-striate bisaccate pollen Scheuringipollenites *** glossopterid *** megafloral and palynofloral assemblage confirms the biostratigraphical age to be Late Barakar palynoflora of Kungurian *** studied morphological characteristics,including small to large Glossopteris leaves exhibiting a lanceolate shape,acute apices,and acute cuneate or tapering bases,as well as entire margins with narrower lamina and narrow meshes,suggest the existence of a dense forest with the prevalence of a warm and humid climate during their *** organic geochemical characterization based on functional group and biomarker analyses reveals the diagenetic effects on organic *** symmetric(~2865-2855 cm^(-1))and asymmetric stretching(~2930-2910 cm^(-1))peaks are identifiable in coal samples,whereas they are absent in carbonaceous *** A-factor vs.c-factor plot suggests that the kerogen type is type Ⅲ,which can generate mainly gaseous *** vitrinite reflectance studies(R_(r) av.1.1%)show increased maturity of the samples,which is supported by the n-alkane distribution pattern and the absence of hopane *** Indian floral assemblages in contemporary of southern Gondwana continents reveal a stronger inclination/affinity with th

关键词： Glossopteris Palynomorph FTIR GcMS Gondwana Permian Palaeoclimate

Predictors of acute gastrointestinal bleeding in diabetic ketoacidosis:a retrospective observational study in minority population

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Gastroenterology Report 2017年第4期5卷 293-297,I0002页

作者： Kanthi Rekha Badipatla Preeti Jadhav Sushma Vaddigiri Bharat Bajantri Amandeep Singh chaitanya chandrala Vijay S Are suresh Kumar Nayudu Department of Medicine Bronx Lebanon Hospital CenterIcahn School of Medicine at Mount SinaiBronxNew YorkNYUSA Division of Gastroenterology Bronx Lebanon Hospital CenterIcahn School of Medicine at Mount SinaiBronxNew YorkNYUSA Division of Pulmonary and critical care Bronx Lebanon Hospital CenterIcahn School of Medicine at Mount SinaiBronxNew YorkNYUSA Division of cardiology Bronx Lebanon Hospital CenterIcahn School of Medicine at Mount SinaiBronxNew YorkNYUSA

Background:Diabetic ketoacidosis(DKA)is a common acute complication of diabetes mellitus requiring aggressive medical *** attempted to study the incidence and various clinical and laboratory variables associated with acute gastrointestinal bleeding(AGIB)and acute upper AGIB(AUGIB)in patients with ***:We conducted a retrospective chart review of all the patients admitted to our hospital with DKA between January 2010 and December *** collected demographic,clinical,laboratory,endoscopy and hospitalization details using an electronicmedical-record *** were divided into two groups based on the occurrence of gastrointestinal ***:A total of 234 patients with DKA were admitted during this period,of which 27(11.5%)patients had documented *** majority of patients had hematemesis(n=22,9.4%)except two had rectal and three had occult *** did not notice any difference in age,gender and ethnicity distribution between the two *** was no difference in the serum levels of electrolytes,anion gap,pH and hemoglobin A1c between the two ***,patients with AGIB had significantly higher initial blood glucose levels(738 vs 613 mg/dL,p=0.014).There was also increased mortality(7.4%vs 4.8%)in patients with AGIB,but this did not reach statistical ***:We conclude that higher initial serum blood glucose was associated with increased incidence of AGIB in patients admitted with *** also noted increased in-patient mortality in patients with DKA who had AGIB,even though statistically *** aggressive measures to correct blood glucose levels may result in decreased incidence of AGIB,thereby reducing mortality during hospitalization in patients with DKA.

关键词： diabetic ketoacidosis gastrointestinal bleeding mortality

Synthesis and characterization of Porous carbon from Petroleum Pitch Using KOH

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Journal of Materials Science and chemical Engineering 2018年第7期6卷 53-69页

作者： c. Srinivasakannan Mohammad El-Mootassem K. suresh Kumar Reddy Ahmed Al Shoaibi chemical Engineering Department Khalifa University of Science and Technology The Petroleum Institute Abu Dhabi UAE

Preparation and process optimization of porous carbons using different carbon sources and activating agents are frequently and commonly reported in open literature. However, only scanty references are made on utilization of petroleum coke for conversion to high surface area porous carbon using KOH as the activating agent. Hence, the present work attempts a process optimization exercise to prepare high surface area porous carbon from Petroleum coke using chemical activation (KOH) utilizing design of experiments. The effect of activation temperature, petroleum coke to KOH ratio (KPR) and activation duration were assessed on the surface area and yield of the porous carbon. The process optimization was performed covering experimental parameters in the range of 500?c - 800?c, 2 - 5 and 30 - 120 min. The optimal process conditions for maximizing the yield and BET surface area was identified to be an activation temperature of 639?c, KPR of 4.5 and activation duration of 43 min, having BET surface area 1765 m2/g and yield of 89.8%. However, an attempt to maximize only the BET surface area, ignoring yield has resulted with a porous carbon with maximum surface area of 2061 m2/g, with the optimal process conditions being an activation temperature of 688?c, KPR of 3.8 and activation duration of 74 min, with the corresponding yield of only 77%. The characterization of porous carbon was performed using nitrogen adsorption isotherm, FT-IR and SEM analysis.

关键词： Petroleum coke Porous carbon KOH Activation ANOVA Optimization

A Time-Dependent Vehicle Routing Problem with Time Windows for E-commerce Supplier Site Pickups Using Genetic Algorithm

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Intelligent Information Management 2015年第4期7卷 181-194页

作者： suresh Nanda Kumar Ramasamy Panneerselvam Doctoral candidate School of Management Pondicherry University Pondicherry India Professor School of Management Pondicherry University Pondicherry India

The VRP is classified as an NP-hard problem. Hence exact optimization methods may be difficult to solve these problems in acceptable cPU times, when the problem involves real-world data sets that are very large. To get solutions in determining routes which are realistic and very close to the actual solution, we use heuristics and metaheuristics which are of the combinatorial optimization type. A literature review of VRPTW, TDVRP, and a metaheuristic such as the genetic algorithm was conducted. In this paper, the implementation of the VRPTW and its extension, the time-dependent VRPTW (TDVRPTW) has been carried out using the model as well as metaheuristics such as the genetic algorithm (GA). The algorithms were implemented, using Matlab and HeuristicLab optimization software. A plugin was developed using Visual c# and DOT NET framework 4.5. Results were tested using Solomon’s 56 benchmark instances classified into groups such as c1, c2, R1, R2, Rc1, Rc2, with 100 customer nodes, 25 vehicles and each vehicle capacity of 200. The results were comparable to the earlier algorithms developed and in some cases the current algorithm yielded better results in terms of total distance travelled and the average number of vehicles used.

关键词： Vehicle Routing Problem Exact Methods Heuristics Metaheuristics VRPTW TDVRPTW Optimization Genetic Algorithms Matlab HeuristicLab c# DOT NET