Operational Research in Engineering Sciences: Theory and Applications最新文献_第2页

Correlation of Human Mobility in Capitals of Seven European Countries During the COVID-19 Pandemic 新冠肺炎大流行期间欧洲七个国家首都人口流动的相关性

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta300622045k

Predrag Katanić, Srdjan Damjanović

{"title":"Correlation of Human Mobility in Capitals of Seven European Countries During the COVID-19 Pandemic","authors":"Predrag Katanić, Srdjan Damjanović","doi":"10.31181/oresta300622045k","DOIUrl":"https://doi.org/10.31181/oresta300622045k","url":null,"abstract":"We monitored and compared human mobility for six discrete categories during two year the COVID-19 pandemic in seven European countries: Austria, France, Italy, United Kingdom, Serbia, Spain, and Sweden, and their capitals: Vienna, Paris, Rome, London, Belgrade, Madrid and Stockholm. We have chosen countries whose capitals have more than a million inhabitants and which are located in various parts of Europe. We chose Sweden because it had a policy with the mildest restrictions on population movement during the pandemic. The collected data for the time period from February 15, 2020 until February 11, 2022. Using basic statistical methods, we found that there is a high degree of correlation between the data, which represent the mobility of people across the countries and the mobility of people in the capital of all seven observed European countries for six discrete categories. Based on this, it can be concluded that the mobility of people during the COVID-19 pandemic differs a lot from country to country, because the policies of governments in restricting the movement of people in the past two years have also differed significantly. Through this we want to show that data from Google Community Mobility Reports can be combined with many other data from various areas of human life and work and that various statistical processing of these data can be done to show various types of correlations with human mobility during the COVID-19 pandemic and how it affects the lives and economies of people around the world. © 2022 by the authors.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45890433","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: 2

Process Measurement and Analysis in a Retail Chain to Improve Reverse Logistics Efficiency 提高逆向物流效率的零售链过程测量与分析

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta110722120g

G. Balázs, Z. Mészáros, C. Péterfi

引用次数: 2

Reduce Transportation Costs Using the Milk-run System and Dynamo Stages in the Vehicle Manufacturing Industry 在汽车制造业中使用牛奶运行系统和发电机阶段降低运输成本

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta240622030s

I. Setiawan, H. Kurnia, Setiawan Setiawan, H. Purba, H. Hernadewita

{"title":"Reduce Transportation Costs Using the Milk-run System and Dynamo Stages in the Vehicle Manufacturing Industry","authors":"I. Setiawan, H. Kurnia, Setiawan Setiawan, H. Purba, H. Hernadewita","doi":"10.31181/oresta240622030s","DOIUrl":"https://doi.org/10.31181/oresta240622030s","url":null,"abstract":"The vehicle manufacturing industry is one of the automotive industries in Indonesia that produces four-wheeled vehicles with the main product being cars. The vehicle manufacturing industry has several sub-companies including Vehicle Manufacturers (VM) and Vehicle Sales (VS). The VM industry is experiencing problems with rising transportation operating costs. The same thing is also experienced by the corporate company such as VS. In 2020, transportation operational costs incurred by the company exceed the target, which can cause losses for the company. The purpose of this study is to find the cause of the problem and improve the transportation operational costs that continue to increase so that the company gets a reduction in transportation costs. The implementation of the improvement concept is carried out using the Dynamo++ stages starting from pre-study until the implementation of improvements. Through improvements to the milk-run system, it was found that vehicle manufacturers and vehicle sales benefited from a reduction in transportation costs of 77,861 USD or a decrease of 79.3%. © 2022 by the authors.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46260141","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

Deep Learning Based a Comprehensive Analysis for Waste Prediction 基于深度学习的废物预测综合分析

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta190822135u

A. Utku, Sema Kayapinar Kaya

引用次数: 0

A Deteriorating Inventory Model under Overtime Production and Credit Policy for Stock- and Price Sensitive Demand Function 库存和价格敏感需求函数的加班生产和信贷政策下的恶化库存模型

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta210322106s

Nita H. Shah, Kavita Rabari, Ekta Patel

引用次数: 3

Prioritization Road Safety Strategies Towards Zero Road Traffic Injury Using Ordinal Priority Approach 基于顺序优先方法的道路安全零伤害策略

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta190822150b

Mouhamed Bayane Bouraima, C. K. Kiptum, Kevin Maraka Ndiema, Yanjun Qiu, I. Tanackov

引用次数: 4

Does Demographics Influence the Risk Behaviour of Urban Investors? A Machine Learning Model Based Approach 人口统计学是否影响城市投资者的风险行为？一种基于机器学习模型的方法

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta010422181b

Amrita Bhattacharya, Avijan Dutta, S. Kar

引用次数: 2

Measuring Sustainability Performance Indicators Using FUCOM-MARCOS Methods 使用FUCOM-MARCOS方法测量可持续性绩效指标

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta040722060b

I. Badi, L. J. Muhammad, M. Abubakar, Mahmut Bakır

引用次数: 28

A New Heuristic Algorithm for Multi Vehicle Routing Problem with AND/OR-Type Precedence Constraints and Hard Time Windows 具有AND/ or型优先约束和硬时间窗的多车路径问题的一种新的启发式算法

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta300622015b

U. Bahalke, N. Hamta, Amirreza Shojaeifard, Maryam Alimoradi, S. Rabiee

引用次数: 4

Metaheuristics-based nesting of parts in sheet metal cutting operation 基于元启发式的钣金加工零件嵌套

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta180222031d

S. Diyaley, S. Chakraborty

引用次数: 3