检索结果-南通市图书馆

Clean Energy 2024年第4期8卷 111-134页

作者： Wan Nabila Mohd Fairuz Illani Mohd Nawi Mohamad Radzi Ahmad ramani kannan Department of Electrical&Electronics Engineering Universiti Teknologi PETRONASBandar Seri Iskandar31750 TronohPerak Darul RidzuanMalaysia

Pipelines produce vibrations during fluid or gas *** vibrations are less likely to cause structural failure as they exist with a small magnitude and can be harvested into useful *** paper presents a study on the piezoelectric energy-harvesting method converting mechanical energy from pipeline vibration into electrical *** performance of the serpentine-shaped piezoelectric cantilever beam was observed to check whether the design can produce the highest output voltage within the allowable vibration region of the pipeline from 10 to 300 Hz through finite element analysis using COMSOL Multiphysics software(Supplementary Material).In addition,this study investigates the energy-harvesting potential of the proposed design under real pipeline vibration conditions through a lab vibration *** harvested energy output is evaluated based on various vibration frequencies and amplitudes,which gives an idea of the device and its performance under different operating *** experiment result shows that the energy harvester produced an open-circuit voltage of 10.28-15.45 V with 1 g of vibration *** results of this research will contribute to the development of efficient piezoelectric energy harvesters adapted for pipeline environments.

关键词： piezoelectric energy harvester unimorph piezoelectric cantilever beam pipeline vibration energy harvesting COMSOL finite element modelling

An advanced cost-efficient IoT method for stroke rehabilitation using smart gloves

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nanotechnology and Precision Engineering 2023年第4期6卷 40-54页

作者： A.Arivarasi D.Thiripurasundari A.Arockia Selvakumar Bhuvan Kumaar T.Aghil S.Rahul ramani kannan Vellore Institute of Technology ChennaiIndia Universiti Tecknologi Petronas Kuala LumpurMalaysia

Stroke represents a severe,widespread,and widely acknowledged health crisis on both national and international *** is one of the most prevalent life-threatening *** impressive advances in treating stroke,in addition to a need for effective patient care services,many sufferers still rely solely on physical *** present paper describes and explains the use of a newly designed gadget for stroke survivors who cannot move their *** is a sophisticated mobile device that enables stroke patients to regain their muscle memory and thus their ability to perform repetitive actions by continuing to tighten and stretch their muscles without the intervention of a *** methodology is used to encourage patients to become involved in the process of *** device also has sensors that take information and transmit it to an app through an ESP32 *** enables physicians to view glove usage information remotely and keep track of an individual patient’s *** between app and glove is facilitated by a broker in the Amazon Web Service *** the robotic glove presented here,the recovery rate is found to be 90.23%over four weeks’duration,which represents a significant improvement compared with existing hospital-based rehabilitation techniques.

关键词： Stroke rehabilitation Smart glove ESP32 AWS cloud

Geotechnical investigation of low-plasticity organic soil treated with nano-calcium carbonate

在线全文

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2023年第2期15卷 500-509页

作者： Govindarajan kannan Brendan C.O’Kelly Evangelin ramani Sujatha Centre for Advanced Research in Environment School of Civil EngineeringSASTRA Deemed to be UniversityThanjavurTamil Nadu613401India Department of Civil Structural and Environmental EngineeringTrinity College DublinDublinD02 PN40Ireland

Soil stabilization using nanomaterials is an emerging research area although,to date,its investigation has mostly been laboratory-based and therefore requires extensive study for transfer to practical field *** present study advocates nano-calcium carbonate(NCC)material,a relatively unexplored nanomaterial additive,for stabilization of low-plasticity fine-grained soil having moderate organic *** plasticity index,compaction,unconfined compressive strength(UCS),compressibility and permeability characteristics of the 0.2%,0.4%,0.6%and 0.8%NCC-treated soil,and untreated soil(as control),were determined,including investigations of the effect of up to 90-d curing on the UCS and permeability *** terms of UCS improvement,0.4%NCC addition was identified as the optimum dosage,mobilizing a UCS at 90-d curing of almost twice that for the untreated *** treated soil,particle aggregation arising from NCC addition initially produced an increase in the permeability coef-ficient,but its magnitude decreased for increased curing owing to calcium silicate hydrate(CSH)gel formation,although still remaining higher compared to the untreated soil for all dosages and curing periods *** index decreased for all NCC-treated soil *** micro-graphs indicated the presence of gel patches along with particle aggregation.X-ray diffraction(XRD)results showed the presence of hydration products,such as *** increases in UCS are initially attributed to void filling and then because of CSH gel formation with increased curing.

关键词： Organic silt Calcium carbonate Nano-calcium carbonate(NCC) Calcium silicate hydrate(CSH) Soil stabilization

HISP-1 Inhibits HSV-1 Infection in Cultured Vero Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Bioscience and Biotechnology 2024年第4期15卷 269-288页

作者： Sandra D. Adams Kevin T. Bilyk Modukuri V. ramani Gottumukkala V. Subbaraju Department of Biology Montclair State University Montclair USA Department of Chemistry Andhara University Visakhapatnam India

Herpes simplex virus-1 (HSV-1) remains a leading cause of viral disease worldwide and is spread by direct contact with infected lesions. There is no vaccine against HSV-1 infections and there remains a need to identify therapeutics that could reduce the spread. In this study various hispolon compounds were analyzed to determine their antiviral potential against HSV-1 infections in cultured Vero cells. To determine the effects on infectivity and possible mechanisms of inhibition, the following assays were conducted. In vitro cytotoxicity assays were conducted to determine the effect of the compounds on cell viability and the maximum non-cytotoxic concentrations. Antiviral assays measured cell viability, percent inhibition of infection following treatment with the compounds, and the effect on the viral infection cycle. These effects were visualized using inverted light and fluorescent microscopy. Of the 24 hispolons tested, only hispolon pyrazole-1 (HISP-1) demonstrated antiviral effects. HISP-1 was demonstrated to effect early stages in HSV-1 infection in cultured Vero cells (attachment, penetration, and post-penetration). In silico modeling analyses were conducted to analyze the interactions between HISP-1 and viral glycoprotein D (gD). HISP-1 is safe at concentrations tested and is effective in inhibiting infection of HSV-1 in cultured cells. HISP-1 has potential for therapeutic use as an antiviral against HSV-1 infection, could work in synergy with other antivirals that work be a different modality, and could be developed as a component of a topical agent to reduce the spread of HSV-1 infections.

关键词： Hispolon Herpes Simplex Virus-1 Antiviral Curcumin

A spatial model for the assessment of debris flow susceptibility along the Kodaikkanal-Palani traffic corridor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Earth Science 2020年第2期14卷 326-343页

作者： Evangelin ramani SUJATHA Centre for Advanced Research on Environment School of Civil EngineeringSASTRA Deemed UniversityThanjavur 613401India

Debris flow is one of the most destructive water related mass movements that affects the development of mountain terrains.A reliable assessment of debris flow susceptibility requires adequate data,but in most developing countries like India,there is a dearth of such extensive scientific *** study presents a novel approach for assessing debris flow using the analytical network process(ANP)in data insufficient regions.A stretch of hill road between Kumburvayal and Vadakaunchi along the Kodaikkanal-Palani Traffic Corridor(M171)was considered for this *** significant factors including the nature of slope forming materials,hydraulic conductivity,slope,vegetation,and drainage density were identified from intense field surveys and inspections in order to assess the susceptibility of the terrain to debris *** model endorsed the interdependencies between the selected *** resulting debris flow susceptibility map delineated regions highly prone to debris flow occurrences,which constituted nearly 23%of the selected road stretch.

关键词： analytical network process(ANP) debris flow hydraulic conductivity GIS Kodaikkanal infinite slope stability model steady state hydrologic model

Cognitive Radios： A Survey On Spectrum Sensing, Security and Spectrum Handoff

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2017年第11期14卷 185-208页

作者： Vishakha ramani Sanjay K.Sharma ECE Department University Institute of Technology Rajiv Gandhi Proudyogiki Vishwavidyalaya Ringgold Standard Institution Airport Bypass Road Bhopal Madhya Pradesh Bhopal Bhopal 462036 India

Pervasive wireless computing and communication have created an ever-increasing demand for more radio spectrum. Since, most of the spectrum is underutilized, it motivated the introduction of the concept of cognitive radios, a dynamic spectrum access enabling technology. The first stage of cognitive radio is to sense the environment and determine which parts of the spectrum are available. This is achieved through spectrum sensing. However, spectrum sensing poses the most fundamental challenge in cognitive radios. Moreover, cognitive radios suffer from many vulnerabilities and the security attacks can severely degrade the performance of cognitive radios. This paper surveys state-of-theart research on spectrum sensing and security threats in cognitive radios. Lastly, we also consider the analysis of issues related to spectrum handoffs in cognitive radios.

关键词： cogntive radio spectrum sesning security spectrum handoff

Understanding Spatial Genome Organization:Methods and Insights

在线全文

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2016年第1期14卷 7-20页

作者： Vijay ramani Jay Shendure Zhijun Duan Department of Genome Sciences University of WashingtonSeattleWA 98195USA Institute for Stem Cell and Regenerative Medicine University of WashingtonSeattleWA 98109USA Division of Hematology University of WashingtonSeattleWA 98195USA Department of Medicine University of WashingtonSeattleWA 98195USA Howard Hughes Medical Institute SeattleWA 98195USA

The manner by which eukaryotic genomes are packaged into nuclei while maintaining crucial nuclear functions remains one of the fundamental mysteries in biology. Over the last ten years, we have witnessed rapid advances in both microscopic and nucleic acid-based approaches to map genome architecture, and the application of these approaches to the dissection of higher- order chromosomal structures has yielded much new information. It is becoming increasingly clear, for example, that interphase chromosomes form stable, multilevel hierarchical structures. Among them, self-associating domains like so-called topologically associating domains （TADs） appear to be building blocks for large-scale genomic organization. This review describes features of these broadly-defined hierarchical structures, insights into the mechanisms underlying their formation, our current understanding of how interactions in the nuclear space are linked to gene regulation, and important future directions for the field.

关键词： Chromatin ChromosomeEpigenomics 4D nucleomeHi-C

Watershed Prioritization of Palar Sub-watershed Based on the Morphometric and Land Use Analysis

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2014年第4期11卷 906-916页

作者： Evangelin ramani SUJATHA Radhakrishnan SELVAKUMAR Balasubramaniam RAJASIMMAN School of Civil Engineering SASTRA University Thanjavur 613 401Tamilnadu India Centre for Remote Sensing Bharathidasan UniversityTiruchirapalli 620003 India

Morphometric analysis is an indispensable tool for hydrological investigation that involves the development and management of drainage basin. This study characterizes the micro watersheds in the Palar sub-watershed using morphometric analysis and assesses its risk by land use and land cover features in a particular micro watershed. Palar sub-watershed is divided into 6 micro watersheds for prioritization based on morphometric and land use analysis. Several morphometric parameters （linear, shape and relief） are determined from the drainage map; ranks are assigned based on their capacity to induce erodability and degradation. Final ranking is based on the composite index calculated from the sum of the ranks of each morphometric parameter. Morphometric analysis reveals micro watersheds 5 and 6 as most susceptible and 2 and 3 as low susceptible. Land use is mapped using IRS ID LISS III satellite data. The risk in terms of watershed degradation involved to each micro watershed is based on the ranks of each land use feature, obtained from a similar composite index as that of morphometric analysis. Land use analysis shows that micro watersheds 2 and 4 fall under high priority category while 5 and 6 under low priority category. Integration of the morphometric and land use analysis shows that only microwatershed 1 falls under the same category in both analyses. Control measures are suggested to contain degradation depending on its specific land use pattern and morphometric features. This study ean be used to prepare a comprehensive watershed plan for the development or for planning resource conservation strategies, by integrating land use features with the drainage characteristics of the region, in particular for a hill ecosystem as the prioritization is at micro level.

关键词： Morphometric analysis Watersheddeterioration risk Land use Palar sub-watershed Kodaikkkanal

Effect of seaweed coating on quality characteristics and shelf life of tomato (Lycopersicon esculentum mill)

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2020年第2期9卷 176-183页

作者： Thahira Banu A Sri ramani P Aswini Murugan School of Sciences Department of Home ScienceThe Gandhigram Rural Institute–(Deemed to be University)Gandhigram624302DindigulTamil NaduIndia

Seaweeds are the natural marine algae which have several properties to act as natural preservatives to extend the shelf life of perishable foods without affecting their quality and causing side *** available and cheap fruits such as tomato are perishable very easily due to its high water *** gel coating is a good choice,easily available and cheap natural preservative abundantly available in the Indian *** present study was undertaken to extend the shelf life of the tomatoes using seaweed gel coating at different *** seaweeds namely Kappaphycus alvarezii(red algae)and Sargassum tenerrimum(brown algae)was selected due to their high gelling *** seaweeds were collected in dry form from Aqua Agri Processing Limited,Mana Madurai(SIPCOT)Tamil Nadu,*** seaweed extracts were tested for phytonutrients,antibacterial and anti-fungal activity using standard *** shelf life of seaweed coated tomatoes using different concentrations of the seaweed extract(gel)was *** the results,it is understood that the phytonutrients namely flavonoids,steroids,saponins and tannins are present in both the selected *** and antifungal activity of Kappaphycus alvarezii showed higher inhibition zone than *** against common *** characteristics and shelf life evaluation was based on water loss,texture,ascorbic acid content,juice content,total soluble solids(TSS),total acidity and TSS/total acidity ratio,*** results pointed out that *** was the most effective in maintaining the quality characteristics of tomato fruits and it also supports the fruit quality during storage period than ***,from the results of the study it is concluded that the better quality characteristics and shelf life of tomatoes can be increased by coating seaweed gel and it can be used as a bio preservative in fruit and vegetable preservation.

关键词： Seaweeds Preservatives Antibacterial Antifungal Phytonutrients Inhibition

Antioxidant and hepatoprotective effects of Hypsizygus ulmarius polysaccharide on alcoholic liver injury in rats

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2021年第4期10卷 523-535页

作者： Sudha Govindan Angu Jayabal Jayasakthi Shanmugam Prasanna ramani Department of Biochemistry School of BiosciencesPeriyar UniversitySalemIndia Department of Biochemistry Kongunadu Arts and Science CollegeBharathiar UniversityCoimbatoreIndia Dhanvanthri Lab Department of SciencesAmrita School of EngineeringCoimbatoreAmrita Vishwa VidyapeethamIndia Center of Excellence in Advanced Materials&Green Technologies(CoE–AMGT) Amrita School of EngineeringCoimbatoreAmrita Vishwa VidyapeethamIndia

Hypsizygus ulmarius polysaccharide(HUP)is a water-soluble polysaccharide obtained by hot water extraction,followed by precipitation and *** characteristics of HUP,antioxidant activity and liver protection against alcohol-induced liver damage were *** characteristics indicate that the HUP is a pyran-type polysaccharide with a molecular weight of 2076 *** antioxidant scavenging assay,HUP showed moderate DMPD radical scavenging activity,cupric ion reducing antioxidant capacity and inhibitory effect against lipid peroxidation in a dose-dependent *** in vivo hepatoprotective activity,compared with the ethanol induction group,pre-treatment of low and high doses of HUP signifi cantly reduced the behaviours of serum enzymes,lowered the levels of hepatic oxidative stress markers,restored the levels of biochemical constituents,enhanced the levels of liver and serum enzymatic antioxidants and non-enzymatic antioxidants,and improved the serum lipid levels of alcohol-intoxicated *** hepatoprotective effect of HUP was comparable to positive control ***,HUP pre-treatment signifi cantly normalized the histopathological changes induced by *** results indicate that HUP could be used as a functional food and may protect the biological system from oxidative stress through its antioxidant activity,thus having a signifi cant protective effect on acute alcoholic liver injury.

关键词： Hypsizygus ulmarius polysaccharide Antioxidant activity Hepatoprotective behaviour Ethanol consumption Liver damage