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A novel mathematical morphology based algorithm for shoreline extraction from satellite images

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Geo-Spatial Information Science 2017年第4期20卷 345-352页

作者： C.A.Rishikeshan H.ramesh National Institute of Technology Karnataka Surathkal India

Shoreline extraction is fundamental and inevitable for several *** the precise spatial location of the shoreline is ***,the need for using remote sensing data to accomplish the complex task of automatic extraction of features,such as shoreline,has considerably *** feature extraction can drastically minimize the time and cost of data acquisition and database *** and fast approaches are essential to monitor coastline retreat and update shoreline ***,we present a flexible mathematical morphology-driven approach for shoreline extraction algorithm from satellite *** salient features of this work are the preservation of actual size and shape of the shorelines,run-time structuring element definition,semi-automation,faster processing,and single band *** proposed approach is tested with various sensor-driven images with low to high *** of the developed methodology has been assessed with manually prepared ground truths of the study area and compared with an existing shoreline classification *** proposed approach is found successful in shoreline extraction from the wide variety of satellite images based on the results drawn from visual and quantitative assessments.

关键词： Feature extraction shoreline detection satellite image processing remote sensing mathematical morphology

Sonochemical synthesis of nanostructured nickel hydroxide as an electrode material for improved electrochemical energy storage application

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Progress in Natural Science:Materials International 2017年第4期27卷 416-423页

作者： Arshid Numan Navaneethan Duraisamy Fatin Saiha Omar Dhanaraj Gopi K.ramesh S.ramesh Center for Ionics University of Malaya Department of Physics Faculty of Science University of Malaya Department of Chemistry Periyar University

A facile and fast approach for the synthesis of a nanostructured nickel hydroxide(Ni（OH）;) via sonochemical technique is reported in the present study. The X-ray diffraction results confirmed that the synthesized Ni（OH）;was oriented in β-phase of hexagonal brucite structure. The nanostructured Ni（OH）;electrode exhibited the maximum specific capacitance of 1256 F/g at a current density of 200 mA/g in 1 M KOH;. Ni（OH）;electrodes exhibited the pseudocapacitive behavior due to the presence of redox reaction. It also exhibited long-term cyclic stability of 85% after 2000 cycles, suggesting that the nanostructured Ni（OH）;electrode will play a promising role for high performance supercapacitor application.

关键词： Nickel hydroxide Sonochemical synthesis Surface morphology Electrode materials

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

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Engaging the spikes: heparan sulfate facilitates SARS-CoV-2 spike protein binding to ACE2 and potentiates viral infection

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Signal Transduction and Targeted Therapy 2021年第2期6卷 211-212页

作者： Rajkumar Singh Kalra ramesh Kandimalla IST-INDIA DAILAB National Institute of Advanced Industrial Science&Technology(AIST)Higashi 1-1-1TsukubaJapan Applied Biology CSIR-Indian Institute of Chemical Technology(IICT)Uppal RoadTarnakaHyderabadTelangana StateIndia Department of Biochemistry Kakatiya Medical CollegeWarangalTelangana 506004India

In a recent report published in Cell,Clausen et al.1 reveal that heparan sulfate(HS)functions as a necessary cofactor for SARSCoV-2 binding to the ACE2 at the host cell *** analysis identified that HS interacts with the receptor-binding domain(RBD)at the SI subunit of the SARS-CoV-2 trimeric S-protein,which facilitates the opening of S-protein conformation for ACE2 binding.

关键词： ACE2 al. infection

Neutrophil to lymphocyte ratio and albumin bilirubin grade in hepatocellular carcinoma: A systematic review

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World Journal of Gastroenterology 2020年第33期26卷 5022-5049页

作者： Ayman Bannaga ramesh P Arasaradnam Department of Gastroenterology and Hepatology University Hospital Coventry and Warwickshire NHS TrustCoventry CV22DXWest MidlandsUnited Kingdom Warwick Medical School University of WarwickCoventry CV47HLWest MidlandsUnited Kingdom

BACKGROUND Hepatocellular carcinoma(HCC)is a frequent cause of cancer related death *** to lymphocyte ratio(NLR)and albumin bilirubin(ALBI)grade are emerging prognostic indicators in *** To study published literature of NLR and ALBI over the last five years,and to validate NLR and ALBI locally in our centre as indicators of HCC *** A systematic review of the published literature on PubMed of NLR and ALBI in HCC over the last five *** search followed the guidelines of the preferred reporting items for systematic reviews and ***,we also investigated HCC cases between December 2013 and December 2018 in our *** There were 54 studies describing the relation between HCC and NLR and 95 studies describing the relation between HCC and ALBI grade over the last five *** local cohort of patients showed NLR to have a significant negative relationship to survival(P=0.011).There was also significant inverse relationship between the size of the largest HCC nodule and survival(P=0.009).Median survival with alpha fetoprotein(AFP)10 KU/L was 5 *** found that AFP was inversely related to survival,this relationship was not statically significant(P=0.132).Mean survival for ALBI grade 1 was 37.7 mo,ALBI grade 2 was 13.4 months and ALBI grade 3 was *** grades performed better than Child Turcotte Pugh score in detecting death from *** NLR and ALBI grade in HCC predict survival better than the conventional alpha *** grade performs better than Child Turcotte Pugh *** markers are done as part of routine clinical care and in cases of normal alpha fetoprotein,these markers could give a better understanding of the patient disease *** and ALBI grade could have a role in modified easier to learn staging and prognostic systems for HCC.

关键词： Hepatocellular carcinoma Albumin bilirubin Grade Neutrophil to lymphocyte ratio Alpha fetoprotein Prognosis Survival

Therapeutic targeting of the androgen receptor(AR)and AR variants in prostate cancer

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Asian Journal of Urology 2020年第3期7卷 271-283页

作者： ramesh Narayanan Department of Medicine University of Tennessee Health Science CenterMemphisTNUSA

Prostate cancer(PCa)accounted for over 300000 deaths world-wide in *** of the PCa deaths occurred due to the aggressive castration-resistant PCa(CRPC).Since the androgen receptor(AR)and its ligands contribute to the continued growth of androgendependent PCa(ADPCa)and CRPC,AR has become a well-characterized and pivotal *** AR signaling was identified as therapeutic-target in PCa over five-decades ago,there remains several practical issues such as lack of antagonist-bound AR crystal structure,stabilization of the AR in the presence of agonists due to N-terminus and C-terminus interaction,unfavorable large-molecule accommodation of the ligand-binding domain(LBD),and generation of AR splice variants that lack the LBD that impede the discovery of highly potent fail-safe *** review summarizes the AR-signaling pathway targeted therapeutics currently used in PCa and the approaches that could be used in future ARtargeted drug development of potent next-generation *** review also outlines the discovery of molecules that bind to domains other than the LBD and those that inhibit both the full length and splice variant of ARs.

关键词： Androgen receptor(AR) AR variants Prostate cancer AR antagonists AR ligand binding domain AR activation function-1 domain Castration-resistant prostate cancer

Analysis of Melting Heat Transport in a Cross Flow Direction:A Comparative Study

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Communications in Theoretical Physics 2018年第12期69卷 777-784页

作者： G.K.ramesh S.A.Shehzad Department of Mathematics K.L.E'S J.T.College Department of Mathematics COMSATS Institute of Information Technology

An incompressible three-dimensional laminar flow in a cross flow direction is described in this work. The term of melting and viscous dissipation is incorporated in the mathematical modeling of present flow problem. The flow expressions are converted into dimensionless equations, which are solved with help of Runge-Kutta scheme. Impact of the emerging parameters on the non-dimensional velocities and temperature and friction-factors and local Nusselt number are examined. The convergence analysis is found for ε < 0 and 0 < ε≤ 2. Comparative analysis is made between the obtained results and published data for limiting case. It is explored at the surface that the melting parameter retards the liquid temperature while it enhances the fluid velocity.

关键词： melting effect cross flow moving plate viscous heating numerical solution

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Atomic Crosschain Transactions for Ethereum Private Sidechains

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Blockchain(Research and Applications) 2022年第1期3卷 23-39页

作者： Peter Robinson Raghavendra ramesh Sandra Johnson ConsenSys Software R&D Brisbane4520Australia School of Information Technology and Electrical Engineering The University of QueenslandQueensland 4072Australia ARC Centre of Excellence for Mathematical and Statistical Frontiers(ACEMS) Queensland University of TechnologyQueensland 4001Australia

The Atomic Crosschain Transaction for Ethereum Private Sidechains protocol allows composable programming across permissioned Ethereum *** allows for inter-contract and inter-blockchain function calls that are both synchronous and atomic:if one part fails,the whole call tree of function calls is *** protocol is not based on existing techniques such as Hash Time Locked Contracts,relay chains,block header transfer,or trusted *** uses(a)threshold signatures to prove values across blockchains,(b)coordination contracts to manage the state of crosschain transactions,and(c)a function call tree commitment scheme to allow users to commit to a call tree and then later check that the correct function calls have been *** paper analyses the processing overhead of using this technique compared to using multiple standard non-atomic single blockchain *** additional processing is analysed for four scenarios involving multiple blockchains:a Trade–Finance system,the Hotel–Train problem,a Supply Chain with Provenance,and an *** protocol is shown to have both safety and liveness properties.

关键词： Crosschain Blockchain Transaction Atomic Ethereum

Assemblages and species diversity of wood destroying termites in different land use systems in Western Ghat, India

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Journal of Forestry Research 2013年第2期24卷 361-364页

作者： Rashmi ramesh Shanbhag R. Sundararaj Institute of Wood Science and Technology

Spatial distribution, abundance and assemblage of termites depend mainly on the local conditions and habitats in which they thrive. Striking differences are observed in the species richness, number of clades and functional diversity of termite assemblage between different habitats. This study aim was to examine effect of human interference in the diversity of wood destroying termite in forest areas as well as managed and unmanaged plantations in South India. Termites attacking trees and wooden logs were collected from forest areas, managed plantations and unmanaged plantations. The termites collected were identified and compared for species abundance, richness and species diversity. Results show that the species composition and species diversity of the wood destroying termites vary according to the conditions. The species diversity measures revealed that there is a significance variation among the forest fauna and plantations. The forest areas have the highest species composition compared to plantations. Species richness is high forest areas. Even though the abundance of termites are more in unmanaged plantations, there is no significant difference related to species diversity among the managed and unmanaged plantations.

关键词： wood termite distribution abundance assemblage

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