International Journal of Engineering Research and最新文献_第5页

Efficiently Removal of Copper and Cadmium from Wastewater using Activated Carbon Produced from Moringa oleifera Bark 辣木树皮活性炭高效去除废水中的铜和镉

International Journal of Engineering Research and Pub Date : 2020-12-17 DOI: 10.17577/ijertv9is110271

Md. Shahin Azad

{"title":"Efficiently Removal of Copper and Cadmium from Wastewater using Activated Carbon Produced from Moringa oleifera Bark","authors":"Md. Shahin Azad","doi":"10.17577/ijertv9is110271","DOIUrl":"https://doi.org/10.17577/ijertv9is110271","url":null,"abstract":"Moringa oleifera is a multipurpose tree. The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of copper (Cu) and cadmium (Cd) from wastewater. There are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated. The activated carbon of Moringa oleifera bark with surface area of 439.2309m2/g and pore volume of 0.189245cm3/g was achieved at 700 °C and used (10%) zinc chloride and (0.5M) sulfuric acid as an activating agent to char ratio (5:1). The copper (Cu) was fully eliminated (100%) from aqueous solution within 10 min while cadmium (Cd) also was significantly removed using 0.25gm/L of adsorbents. The Freundlich isotherm, pseudosecond order kinetic equations were well fitted with a correlation coefficient of (0.993 and 1) for copper and (0.953 and 0.999) for cadmium respectively. We observed that at pH 11, adsorbents showed maximum adsorption capacity. Therefore, it can be used as a potential, eco-friendly non-toxic, cost effective application for wastewater treatment. Finally, this works also focused regeneration of adsorbents using solvents for further highest reuse of it. Keywords— Moringa oleifera bark; Activated carbon; Adsorption; Heavy metal; Wastewater treatment","PeriodicalId":13986,"journal":{"name":"International Journal of Engineering Research and","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77149002","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

Statistical Analysis of Future Prospective in COVID-19 Cases in India 印度COVID-19病例未来前景的统计分析

International Journal of Engineering Research and Pub Date : 2020-12-09 DOI: 10.17577/ijertv9is110225

I. Sadiq, S. Sharma, Rabilu Ado

引用次数: 1

A Statistical Analysis: “Impact of Weather in Homogeneity of Covid-19 Variations In India” 统计分析:“天气对印度Covid-19变异同质性的影响”

International Journal of Engineering Research and Pub Date : 2020-12-09 DOI: 10.17577/ijertv9is110224

I. Sadiq, J. Raghav, Rabilu Ado

引用次数: 0

Analysis of Offshore Wind Energy in Colombia: Current Status and Future Opportunities 哥伦比亚海上风能分析:现状与未来机遇

International Journal of Engineering Research and Pub Date : 2020-12-08 DOI: 10.17577/ijertv9is110277

Laura Arce, S. Bayne

引用次数: 2

Effect of citric acid on thickeners used in products for people suffering oropharyngeal dysphagia 柠檬酸对用于口咽吞咽困难患者产品的增稠剂的影响

International Journal of Engineering Research and Pub Date : 2020-12-01 DOI: 10.5281/ZENODO.4400125

J. G. Raurich, Anna Mas Herrador, Queralt Pérez Ruiz

{"title":"Effect of citric acid on thickeners used in products for people suffering oropharyngeal dysphagia","authors":"J. G. Raurich, Anna Mas Herrador, Queralt Pérez Ruiz","doi":"10.5281/ZENODO.4400125","DOIUrl":"https://doi.org/10.5281/ZENODO.4400125","url":null,"abstract":"— Dysphagia is a digestive disorder recognized by the World Health Organization (WHO) in the International Classification of Diseases (ICD) characterized by the difficulty in forming or moving the bolus from the mouth to the oesophagus that can cause the passage of food into the respiratory tract. Foods for people with dysphagia are prepared with products that modify viscosity to make them safer when ingested. The aim of this work is to establish the interaction between citric acid, widely used by the food industry, with different thickeners, both first and second range, in order to check whether they fulfil the functions for which they have been designed. The time stability and viscosity as a function of the hydration time of six thickeners and their behavior in the temperature range between 25 and 50 °C were determined. Thickener concentrations up to a maximum of 6% were used in combination with 3acid concentrations (0.5, 1 and 2%). In distilled water, the sedimentation of first range thickeners and the gelification of second range thickeners were checked, as well as the change from non-Newtonian to Newtonian behaviour after the hydrolysis process in both types of thickeners. In the presence of citric acid, the behaviour of both types of thickeners was analogous. Second range thickeners have been found to be much safer than first range thickeners in modifying the viscosity of liquids for people with dysphagia due to the fact that they do not sediment. .","PeriodicalId":13986,"journal":{"name":"International Journal of Engineering Research and","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87202827","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

CoronaNeXt Evaluating the Performance of the Laplacian Operator in Diagnosing COVID-19 from Chest X-Rays CoronaNeXt评估拉普拉斯算子在胸部x线诊断COVID-19中的表现

International Journal of Engineering Research and Pub Date : 2020-11-30 DOI: 10.17577/ijertv9is110211

R. Bhansali, Rahul Kumar

{"title":"CoronaNeXt Evaluating the Performance of the Laplacian Operator in Diagnosing COVID-19 from Chest X-Rays","authors":"R. Bhansali, Rahul Kumar","doi":"10.17577/ijertv9is110211","DOIUrl":"https://doi.org/10.17577/ijertv9is110211","url":null,"abstract":"In recent years, usage of deep learning models for medical image classification tasks has grown exponentially due to their state of the art accuracy and efficiency; however, the performance of these models are often limited by insufficient publicly available data. In this study, we continue our previous work in exploring the applications of the Laplace Operator, a detail enhancing image filter, in deep learning models in order to overcome these performance plateaus. Specifically, we evaluate the performance of ResNet-18 in diagnosing COVID-19 from a relatively small dataset of X-ray images. When comparing the performance of our model, dubbed CoronaNeXt, on images without the Laplacian applied to images with the Laplacian applied, we find significant increases in all maximum validation metrics: accuracy improved from 87.6% to 94.8%; F1 score improved from 0.860 to 0.968; specificity improved from 0.865 to 0.944; and sensitivity improved from 0.885 to 0.992. Based on these results, we describe the potential of the Laplacian Operator in drastically improving the performance of deep learning architectures in medical image classification tasks, particularly when utilizing small to medium sized datasets. Notably, sensitivity underwent the most significant improvement, correlating with the results achieved in our previous work using the CT modality. We hope our research will spark further exploration of the Laplace Operator and other derivative-based image preprocessing methodologies in conjunction with powerful deep learning models for medical image tasks. Keywords— COVID-19, Chest X-rays, Laplace Operator, Deep Learning","PeriodicalId":13986,"journal":{"name":"International Journal of Engineering Research and","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74894871","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

A Retrospective Comparative Analysis Regarding Strategies for Early COVID-19 Pandemic Mitigation in the US and South Korea 美国和韩国COVID-19大流行早期缓解策略的回顾性比较分析

International Journal of Engineering Research and Pub Date : 2020-11-26 DOI: 10.17577/ijertv9is110166

R. Bhansali, Rahul Kumar

{"title":"A Retrospective Comparative Analysis Regarding Strategies for Early COVID-19 Pandemic Mitigation in the US and South Korea","authors":"R. Bhansali, Rahul Kumar","doi":"10.17577/ijertv9is110166","DOIUrl":"https://doi.org/10.17577/ijertv9is110166","url":null,"abstract":"—The purpose of this report is to retrospectively analyze and compare the early COVID-19 pandemic mitigation strategies of South Korea and the United States as the insights and knowledge gained can be applied to subsequent pandemics to minimize devastation. Additionally, this report will specifically give attention to the role of new emerging technologies in the detection, prevention, and treatment of this virus, as well as their role in the future and addresses early mitigation strategies that are implemented within two months of each country’s first detected case. First, we present a basic historical background regarding the nature of pandemics, as well as previous early mitigation techniques and their respective outcomes. This contains a background regarding the characteristics of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the COVID-19 disease; additionally, we analyze the global spread of the virus prior to the imposition of universal travel bans. The second section provides comparative analysis regarding the different preparatory measures invoked by South Korea and the United States, the country in which COVID-19 cases are most prevalent. We examine a plethora of statistics, such as the rate of spread and percent of people tested, in order to reach a holistic conclusion about the effectiveness of each country’s mitigation strategy. In the third section we bring to light technological advancements that have been developed or are under development that have immense potential for application in virus detection, prevention, and mitigation.","PeriodicalId":13986,"journal":{"name":"International Journal of Engineering Research and","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78619816","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

Using Machine Learning to Diagnose Chest Xrays and Interpret Patient Symptoms and Medical History 使用机器学习诊断胸部x光片并解释患者症状和病史

International Journal of Engineering Research and Pub Date : 2020-11-26 DOI: 10.17577/ijertv9is110163

R. Bhansali

引用次数: 1

A Mixed-Method Proposal for Traffic Hotspots Mapping in African Cities using Raw Satellite Imagery 一种基于原始卫星图像的非洲城市交通热点制图混合方法方案

International Journal of Engineering Research and Pub Date : 2020-11-26 DOI: 10.17577/IJERTV9IS100186

Yilak A Kebede

引用次数: 1

Determination of Significant Parameters and Their Contributions In Temperature Measurement using Analysis of Variance and Taguchi Method 用方差分析和田口法确定温度测量中的重要参数及其贡献

International Journal of Engineering Research and Pub Date : 2020-11-12 DOI: 10.17577/ijertv9is100264

Mehdi Moayyedian, A. Mamedov, J. Derakhshandeh, Abdelrahman Elkattan

引用次数: 2