Journal of Ravishankar University (PART-B)最新文献_第5页

Screening Some Extracellular Enzymes of Wild Mushrooms from Pt. Ravishankar Shukla University Campus 舒克拉大学校园野生蘑菇胞外酶的筛选

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-6

Srishti Verma, V. Valvi, K. Shukla

引用次数: 0

Species of Termitomyces (Agaricales) Occurring in Achanakmar Biosphere Reserve, Chhattisgarh 恰蒂斯加尔邦阿恰纳克马尔生物圈保护区白蚁属物种研究

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-8

Srishti Verma, M. Tiwari, R. V. Shukla, K. Shukla

引用次数: 0

Quantum Dots and Nanohybrids and their Various Applications: A Review 量子点和纳米杂化及其应用综述

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-7

Yogyata Chawre, Lakshita Dewangan, A. B. Kujur, Indrapal Karbhal, Rekha Nagwanshi, V. Jain, M. L. Satnami

引用次数: 0

Parametric study of AlGAN/GaN UV-Led Based on Quantum Confined Stark Effect (QCSE) 基于量子受限Stark效应(QCSE)的AlGAN/GaN UV-Led参数化研究

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-10

S. Patra, S. Tiwari, Umang Singh

引用次数: 0

Introduction to Cloud Storage Services 云存储服务简介

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-9

Gulab Singh Verma, Lokesh Sahu

{"title":"Introduction to Cloud Storage Services","authors":"Gulab Singh Verma, Lokesh Sahu","doi":"10.52228/jrub.2022-35-1-9","DOIUrl":"https://doi.org/10.52228/jrub.2022-35-1-9","url":null,"abstract":"\u0000 Cloud computing has become one of the hottest technologies of the emerging 21st century technology, Cloud computing is related to a variety of themes that take on a larger dimension of mainstream media, there are various cloud computing books have also been available on shelves in recent years. The Internet makes the world more accessible. Cloud storage is an important infrastructure for achieving seamless data sharing and experience of service communications from different users, different applications, different devices around the world. It will be a new public infrastructure service, such as water, electricity, available anytime, anywhere. Cloud is not a specific product, but a way to deliver IT services that can be used when needed, expand up and down as needed, and follow a usage model. Cloud computing is a computer style in which computer resources are easily accessible and accessible, easy to use, cheap, and just working. Cloud is not a point product or a single technology, but a way to deliver IT services in a way that provides self-sufficiency, demand and use for each payment. By making data available in the cloud, easily accessible and ubiquitous, usually at much lower costs, increase their value by enabling opportunities for improved collaboration, integration, and analysis on a common shared platform. \u0000","PeriodicalId":17214,"journal":{"name":"Journal of Ravishankar University (PART-B)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79113028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of Design and Device Modeling of Double layered Perovskite Solar Cells 双层钙钛矿太阳能电池的设计与器件建模研究

Journal of Ravishankar University (PART-B) Pub Date : 2022-03-08 DOI: 10.52228/jrub.2022-35-1-5

Madhu Allalla, N. Shukla, Sweta Minj, S. Tiwari

{"title":"Study of Design and Device Modeling of Double layered Perovskite Solar Cells","authors":"Madhu Allalla, N. Shukla, Sweta Minj, S. Tiwari","doi":"10.52228/jrub.2022-35-1-5","DOIUrl":"https://doi.org/10.52228/jrub.2022-35-1-5","url":null,"abstract":"Recently, organic-inorganic perovskite-based solar cells have become a revolution in photovoltaic field due to their unique properties. Several studies were focused on perovskite solar cells based on Pb perovskite layer as lead provides strong absorption of photons and have high efficiency. However, the factor of toxicity, stability and ecological challenges of these devices is the main challenge to the progress in commercial production. In this, study and numerical modeling of perovskite solar cells using an alternative candidate which is tin as a perovskite material has been carried out. This later is investigated in order to overcome the toxicity, stability and ecological challenges effects on perovskite solar cells, as they exhibit similar photovoltaic performances as Pb-perovskite solar cells. Therefore, the effect of single and double absorbent i.e. CH3NH3SnI3 and CH3NH3SnBr3 and no Hole Transport Layer is studied and investigated to enhance the conversion efficiency of perovskite devices. The obtained simulation results illustrate that perovskite solar cells based on no HTL and double absorbent layer exhibit 21.3% of power conversion efficiency compared to that with other HTL materials. Thus, adding double absorbent layer in perovskite solar cell design possibly will be considered as novel designing for future Sn-perovskite solar cells. The numerical simulation was performed using 1DSolar Cell Capacitance Simulator (1D- SCAPS).","PeriodicalId":17214,"journal":{"name":"Journal of Ravishankar University (PART-B)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84581071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of Cymoxanil in Soil, Water and Vegetable Samples 土壤、水和蔬菜样品中氰胺含量的评价

Journal of Ravishankar University (PART-B) Pub Date : 2021-05-01 DOI: 10.52228/jrub.2021-34-1-12

A. Sahu, M. Rai, Joyce Rai, Y. Sahu, D. Sahu, Kalpana Wani, J. Goswami, C. Bhatt

{"title":"Assessment of Cymoxanil in Soil, Water and Vegetable Samples","authors":"A. Sahu, M. Rai, Joyce Rai, Y. Sahu, D. Sahu, Kalpana Wani, J. Goswami, C. Bhatt","doi":"10.52228/jrub.2021-34-1-12","DOIUrl":"https://doi.org/10.52228/jrub.2021-34-1-12","url":null,"abstract":"\u0000 The present work describes a newly developed method for the spectrophotometric determination of cymoxanil in soil, water and vegetable samples. The detection of the target chemical substance is based on the reaction of cyanide released from the hydrolysed product of cymoxanil with potassium iodide-potassium iodate to form a blue-coloured complex in the presence of starch solution. This complex is water-soluble and shows maximum absorbance at 580 nm. For this complex, Beer's law is obeyed over the concentration range of 2-50 μg mL−1 with molar absorptivity 1.2×105 L mol-1cm-1 and Sandell’s sensitivity 1.0×10-3 µg cm-2. The reproducibility was assessed by carrying out seven days replicate analysis of a solution containing 10 µgmL-1 of cymoxanil in a final solution of a volume of 10 mL. The standard deviation and relative standard deviation for the absorbance value were found to be ± 2.9×10-3 and 1.6% respectively. The proposed method is free from the interference of other toxicants. The analytical parameters were optimized and the method was applied to the determination of cymoxanil in water, soil, and vegetable samples.\u0000","PeriodicalId":17214,"journal":{"name":"Journal of Ravishankar University (PART-B)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77860606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Various Techniques of MPPT Based Charge Controller and Comparison of A/C with D/C Home Appliances - A Review 基于MPPT的各种充电控制器技术及A/C与D/C家电的比较综述

Journal of Ravishankar University (PART-B) Pub Date : 2021-05-01 DOI: 10.52228/jrub.2021-34-1-13

G. Rathore, B. Krishna, R. Patel, S. Tiwari

引用次数: 0

Investigation on Design and Device Modeling of High Performance CH3NH3PbI3-xClx Perovskite Solar Cells 高性能CH3NH3PbI3-xClx钙钛矿太阳能电池的设计与器件建模研究

Journal of Ravishankar University (PART-B) Pub Date : 2021-05-01 DOI: 10.52228/jrub.2021-34-1-8

N. Shukla, Dhara R. Prajapati, S. Tiwari

{"title":"Investigation on Design and Device Modeling of High Performance CH3NH3PbI3-xClx Perovskite Solar Cells","authors":"N. Shukla, Dhara R. Prajapati, S. Tiwari","doi":"10.52228/jrub.2021-34-1-8","DOIUrl":"https://doi.org/10.52228/jrub.2021-34-1-8","url":null,"abstract":"\u0000 Perovskite solar cells fabricated with inexpensive and simple technology exhibits high efficiency has witnessed worldwide boom in research. The optimization of solar cell can be done through modeling and simulation. The optical and electrical modeling are the ways to optimize different parameter such as thickness, defect density, doping density and material selection for fabricating stable and highly efficient perovskite solar cells. In this research work, electrical modeling of solar cell is done throughSolar Cell Capacitance Simulator(SCAPS-1D).The architecture of the solar cell is n-i-p device structure. CH3NH3PbI3-xClx acts as light absorber active layer, TiO2 as electron transport layer and Spiro-OMeTADas hole transport layer with device structure FTO/ TiO2/ CH3NH3PbI3-xClx/ Spiro-OMeTAD/Au. The open circuit voltage Voc, short circuit current density Isc, fill factor and power conversion efficiency are 1.28 V, 21.63 mA/cm2, 0.78 and 21.53% respectively. The result showed that the optimize parameter can be applied for fabrication of the solar cell experimentally. Various metal contact materials of the anodeare also studied and analyzed. \u0000","PeriodicalId":17214,"journal":{"name":"Journal of Ravishankar University (PART-B)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87903166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Simple and Cost Effective Polymer Modified Gold Nanoparticles Based on Colorimetric Determination of L-Cysteine in Food Samples 基于比色法测定食品样品中l -半胱氨酸的简单且具有成本效益的聚合物修饰金纳米颗粒

Journal of Ravishankar University (PART-B) Pub Date : 2021-05-01 DOI: 10.52228/jrub.2021-34-1-6

Beeta Rani Khalkho, A. Saha, Bhuneshwari Sahu, M. Deb

{"title":"Simple and Cost Effective Polymer Modified Gold Nanoparticles Based on Colorimetric Determination of L-Cysteine in Food Samples","authors":"Beeta Rani Khalkho, A. Saha, Bhuneshwari Sahu, M. Deb","doi":"10.52228/jrub.2021-34-1-6","DOIUrl":"https://doi.org/10.52228/jrub.2021-34-1-6","url":null,"abstract":"\u0000 Abstract. The purpose of the present research was to design a method for the colorimetric determination of L-cysteine. We have employed PVA capped gold nanoparticles (GNPs) as a probe. The as-synthesized GNPs were further characterized by UV-vis absorption spectroscopy, transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS) and Zeta potential analyser. The results show that the presence of L-cysteine caused the quenching of the surface plasmon resonance band of the GNPs at 524 nm. It was accompanied by the appearance of a new absorbance of a new absorbance band at 670 nm. The color of the colloidal GNPs changed from wine red to blue. The change in color of the GNPs was due to their aggregation induced by the presence of L-cysteine. Based on these observations, the as-synthesized GNPs were utilized to develop a novel colorimetric sensor for L-cysteine detection in food samples. Significantly, other biomolecules such as alanine, proline, phenylalanine, tryptophane, valine, arginine, glutamic acid, lysine and histidine did not cause any change in the color of the GNPs solutions. This colorimetric probe showed excellent selectivity and high sensitivity for L-cysteine with a detection limit of 2.0 μg mL-1. \u0000","PeriodicalId":17214,"journal":{"name":"Journal of Ravishankar University (PART-B)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73080378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0