Smart Science最新文献_第10页

Effect of Routing Flexibility on the Performance of Order Release Policies in a Flexible Job Shop with Sequence-Dependent Setup Time: A Simulation Study 具有顺序相关设置时间的柔性作业车间中，路由灵活性对订单释放策略性能的影响:仿真研究

IF 2.3

Smart Science Pub Date : 2022-02-20 DOI: 10.1080/23080477.2022.2040205

S. Padma Rani, Ajai Kumar Jain, Surjit Angra

{"title":"Effect of Routing Flexibility on the Performance of Order Release Policies in a Flexible Job Shop with Sequence-Dependent Setup Time: A Simulation Study","authors":"S. Padma Rani, Ajai Kumar Jain, Surjit Angra","doi":"10.1080/23080477.2022.2040205","DOIUrl":"https://doi.org/10.1080/23080477.2022.2040205","url":null,"abstract":"ABSTRACT Order review and release (ORR) in a flexible job shop considering sequence-dependent setup time (SDST) is a complicated job shop problem. Routing flexibility helps in increasing the flexibility of the system by providing alternative routes to jobs. This research work assesses the effect of routing flexibility on order release policies in a flexible job shop considering SDST within a stochastic and dynamic (SCDM) manufacturing environment. In this study, five order release policies, viz., Corrected Aggregate Load Approach (CALA), Aggregate Workload Trigger (AGGWLT), Corrected Workload Trigger (CorrWLT), Work Center Workload Trigger (WCWLT), and Lancaster University Management School Corrected Order Release (LUMSCOR), are considered with planned release date sequencing rule. Four performance measures are considered in the present research work, i.e., mean throughput time, mean lead time, mean tardiness, and total setups. For experimental purposes, a simulation model is developed with six routing flexibility levels with the help of Promodel® software. Results indicate that the performance of all ORR policies can be improved by considering routing flexibility along with it. For a given ORR policy, as routing flexibility increases, there is a decrease in system performance measures up to a certain level, and after that, it starts increasing. Thus, routing flexibility has an optimum level. The least value of workload trigger level for all ORR policies provides the best results for mean throughput time performance measure. Further, as the workload trigger level increases, the best results are obtained for the other three performance measures except the mean throughput time. Graphical abstract","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46950954","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

IM-DWT with DNN Based Blocking Scheme of Third Zone Distance Relay in Power Swing Condition 基于DNN的IM-DWT三区距离继电器功率摆动闭锁方案

IF 2.3

Smart Science Pub Date : 2022-01-07 DOI: 10.1080/23080477.2021.2023790

Cholleti Sriram, J. Somlal

{"title":"IM-DWT with DNN Based Blocking Scheme of Third Zone Distance Relay in Power Swing Condition","authors":"Cholleti Sriram, J. Somlal","doi":"10.1080/23080477.2021.2023790","DOIUrl":"https://doi.org/10.1080/23080477.2021.2023790","url":null,"abstract":"ABSTRACT Zone 3 distance relay is linked in the system for protecting the transmission line that acts as a backup relay while the primary relay is in failure due to fault or any other issues; it can act as a secondary relay to clear the problems. Under power swing conditions, the magnitude of current and voltage is entirely in the relay to cause maloperation. In the mal-operative conditions, the relay was not working correctly as well to trip the transmission line. The above problem is mitigated by using the proper method of power swing blocking scheme. In the proposed approach, the supervision-based blocking scheme is introduced to avoid the maloperation of zone 3 distance relay under power swing conditions. The proposed blocking scheme is based on active power and the deviation of source and load voltage. The voltage and current signals are sensed by improved discrete wavelet transform (IM-DWT). It senses the power to generate the coefficients for analysis of the system conditions, whether the system is stressed or not. Here, the most advantageous algorithm of deep neural network (DNN) is utilized to analyze the IM-DWT coefficient for selecting the working function of distance relay. DNN operates two modes based on the coefficient values, namely RDL-1 (state assessment) and RDL-2 (power swing identification). The threshold-based blocking approach chooses the optimal function of DNN. The overall proposed system is implemented in the Western System Coordinating Council (WSCC) IEEE 9 bus system, and the design and performance are verified in MATLAB/Simulink software. The proposed approach is more advantageous and offers a rapid operation to avoid the maloperation of the zone 3 distance relay as compared to the existing methods like support vector machine, artificial neural network, and k-nearest neighbour. GRAPHICAL ABSTRACT","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44672854","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: 3

Charging Stations for Electric Vehicles; a Comprehensive Review on Planning, Operation, Configurations, Codes and Standards, Challenges and Future Research Directions 电动汽车充电站;规划、运行、配置、规范与标准、挑战与未来研究方向综述

IF 2.3

Smart Science Pub Date : 2021-12-29 DOI: 10.1080/23080477.2021.2003947

P. Farhadi, S. M. Moghaddas Tafreshi

{"title":"Charging Stations for Electric Vehicles; a Comprehensive Review on Planning, Operation, Configurations, Codes and Standards, Challenges and Future Research Directions","authors":"P. Farhadi, S. M. Moghaddas Tafreshi","doi":"10.1080/23080477.2021.2003947","DOIUrl":"https://doi.org/10.1080/23080477.2021.2003947","url":null,"abstract":"ABSTRACT Extensive studies have already been reported in recent literature on the characteristics of EVs and EV charging stations (EVCSs) and the majority of quality research was published in very recent years due to ever-increasing interests paid on this topic. So far, totally, 1167 research and review articles have been appeared in this field according to SCOPUS database until the end of first quartile of 2021. Obviously, studying such an enormous literature appeared in different subtopics is very difficult and time consuming. Thus, in this research work, only existing CS-related review articles are examined from various perspectives such as planning, operation, configurations, codes, standards, etc. Hence, to get an instant access to related research works a total of 38 review articles were selected on the scope of CS in between 2013 and 2021. The selected reviews were examined from different viewpoints including planning and operation, topologies, codes, and standards. Based on the discussions given in the investigated review articles, the present review study instantly demonstrates the existing issues and challenges of CSs as well as the future research directions in all related research fields. GRAPHICAL ABSTRACT","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45973783","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: 5

Analysis of Unbalanced Radial Distribution System with SVR and Impact of Phase Shifter Angle considering Time Varying Loads 考虑时变负荷的SVR不平衡径向配电系统及移相器角度的影响分析

IF 2.3

Smart Science Pub Date : 2021-12-29 DOI: 10.1080/23080477.2021.2012323

Mukesh Singh, A. Gupta, Ashwani Kumar

{"title":"Analysis of Unbalanced Radial Distribution System with SVR and Impact of Phase Shifter Angle considering Time Varying Loads","authors":"Mukesh Singh, A. Gupta, Ashwani Kumar","doi":"10.1080/23080477.2021.2012323","DOIUrl":"https://doi.org/10.1080/23080477.2021.2012323","url":null,"abstract":"ABSTRACT Distribution network experiences unbalancing due to random switching of loads, low voltage profile, high R/X ratio, and unequal loading in the different phases, which inturn causes more losses compared to transmission line. The voltage profiles, active, and reactive power in each phase are distinct due to unbalancing. In the present work, the authors analyzed unbalanced distribution network in presence of Series Voltage Regulator (SVR) considering the reduction in the losses and improvement in the voltage profile. The main highlights of the paper are: (i) placement and analysis of unbalance radial network with SVR at various phase angles; (ii) reduction in active, reactive power loss of the network and improvement in voltage profile; (iii) saving in cost of energy loss at different phase angle of SVR; and (iv) impact analysis of seasonal time varying load model. The placement of SVR at candidate node by considering real, reactive power loss reduction, and percentage rate of under voltage mitigated problem. Before and after SVR placements, the forward and backward sweep algorithm is used for the load flow calculation for analysis. The analysis is carried out on IEEE 25-bus radial distribution network with SVR phase shifter considering time varying seasonal load variations. Graphical Abstract","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45588989","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

Improving the Sharing of Active and Reactive Power of the Islanded Microgrid Based on Load Voltage Control 基于负载电压控制提高孤岛微电网有功和无功功率的共享

IF 2.3

Smart Science Pub Date : 2021-12-26 DOI: 10.1080/23080477.2021.2012010

Masoud Dashtdar, M. S. Nazir, S. M. S. Hosseinimoghadam, M. Bajaj, S. B

引用次数: 16

Energy Saving in an Air-Conditioning System Using Interdisciplinary Energy Conversion Approach 跨学科能量转换方法在空调系统节能中的应用

IF 2.3

Smart Science Pub Date : 2021-12-26 DOI: 10.1080/23080477.2021.2012324

S. Suyambazhahan, Tatek Temesgen, A. Nene, S. Ramachandran

引用次数: 0

Modeling and Optimization of IoT Factors to Enhance Agile Manufacturing Strategy-based Production System Using SCM and RSM 基于供应链管理和RSM的基于敏捷制造战略的生产系统物联网因素建模与优化

IF 2.3

Smart Science Pub Date : 2021-12-18 DOI: 10.1080/23080477.2021.2017543

U. K. Vates, B. Sharma, Nand Jee Kanu, E. Gupta, G. Singh

{"title":"Modeling and Optimization of IoT Factors to Enhance Agile Manufacturing Strategy-based Production System Using SCM and RSM","authors":"U. K. Vates, B. Sharma, Nand Jee Kanu, E. Gupta, G. Singh","doi":"10.1080/23080477.2021.2017543","DOIUrl":"https://doi.org/10.1080/23080477.2021.2017543","url":null,"abstract":"ABSTRACT Agile Manufacturing is a widely accepted strategy by most organizations as a tool to compete in the market. The success of an industrial product or organization depends on their ability to short out the critical and regular factors of agile manufacturing. Identification of suitable implementation of critical enablers could highlight industrial issues to enhance the process performance. The present research aimed to depict the critical enablers of agile manufacturing through the enablers of Internet of things (IoT) to improve the profitability and product quality. The methodologies adopted for the depiction of enablers in the research are similarity coefficient matrix (SCM) and Jaccard’s Similarity Index (JSI). The impact of organizational level, technological level, and employee-level enablers on IoT clusters were investigated analytically through SCM and JSI. JSI is applied to acquire data by survey and then a dendrogram is generated on the basis of the calculations done through this index. Response surface methodology (RSM) was also adopted to optimize the critical IoT enablers and it is validated with an analytical result. GRAPHICAL ABSTRACT","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45192934","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: 6

Non-Premixed Liquid Fuel Air Flame in a Miniature Combustor with Modified Flow Aerodynamics 改进流动空气动力学的微型燃烧器中的非预混液体燃料-空气火焰

IF 2.3

Smart Science Pub Date : 2021-12-16 DOI: 10.1080/23080477.2021.2015819

Nur Kyairatul Syafinie Abdul Majid, Aqil Asnawi Abu Hanapah, M. R. Saad, H. Mohd Faizal, Azam Che Idris, Seyed Ehsan Hosseini, H. Koten, Mohd Rosdzimin Abdul Rahman

{"title":"Non-Premixed Liquid Fuel Air Flame in a Miniature Combustor with Modified Flow Aerodynamics","authors":"Nur Kyairatul Syafinie Abdul Majid, Aqil Asnawi Abu Hanapah, M. R. Saad, H. Mohd Faizal, Azam Che Idris, Seyed Ehsan Hosseini, H. Koten, Mohd Rosdzimin Abdul Rahman","doi":"10.1080/23080477.2021.2015819","DOIUrl":"https://doi.org/10.1080/23080477.2021.2015819","url":null,"abstract":"ABSTRACT This study determines the effect of flow aerodynamics modification on the combustion characteristics of a new miniature combustor. The n-heptane was injected into the combustor at a flow rate of 1.0 ml/min to 2.5 ml/min, and the airflow rate varied between 7.0 l/min and 20.0 l/min at a successive fuel flow rate to maintain the equivalence ratio. The flame was confined in the combustor in the lean fuel regime. The modified combustor stabilized and sustained the flame at a high Reynolds number. This study used a numerical simulation of the isothermal flow to explain the results of the experiment. The recirculation zone at the sidewall bottom chamber extends the combustor operating regime to the higher Reynolds number. This recirculation balanced the flame propagation and flow velocity at higher Reynolds numbers and strengthen the flame anchoring inside the bottom chamber. The modified flow aerodynamics enhanced the combustion sustainability of the miniature combustors. It is a critical parameter in designing new combustors with a wide range of operation regimes at a small scale. GRAPHICAL ABSTRACT","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47899183","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: 3

Design and Performance Evaluation of Efficiency Enhanced Solar Food Processor 增强型太阳能食品加工机的设计与性能评价

IF 2.3

Smart Science Pub Date : 2021-12-02 DOI: 10.1080/23080477.2021.2012009

R. G, Ajna K I

引用次数: 1

A Computational Screening on Inhibitability of Piper Betle Essential Oil Chemical Structures against Spike Proteins of Mutated SARS-CoV-2-variants D614G, N501Y, and S477N 花椒精油化学结构对sars - cov -2突变体D614G、N501Y和S477N刺突蛋白抑制能力的计算筛选

IF 2.3

Smart Science Pub Date : 2021-11-27 DOI: 10.1080/23080477.2021.2003948

Phan Tu Quy, Tran Thi Ai My, Nguyen Thi Thanh Hai, Thanh Q. Bui, Duong Tuan Quang, Nguyen Thanh Triet, Phan Phuoc Hien, Nguyen Thi Ai Nhung

{"title":"A Computational Screening on Inhibitability of Piper Betle Essential Oil Chemical Structures against Spike Proteins of Mutated SARS-CoV-2-variants D614G, N501Y, and S477N","authors":"Phan Tu Quy, Tran Thi Ai My, Nguyen Thi Thanh Hai, Thanh Q. Bui, Duong Tuan Quang, Nguyen Thanh Triet, Phan Phuoc Hien, Nguyen Thi Ai Nhung","doi":"10.1080/23080477.2021.2003948","DOIUrl":"https://doi.org/10.1080/23080477.2021.2003948","url":null,"abstract":"ABSTRACT Aromatic phenylpropenoids in Piper betle essential oil composition can be promising, leading structures to develop inhibitors toward spike proteins of SARS-CoV-2 variants D614G, N501Y, and S477N. Structural formulae of chemical constituents were referenced from our previous report in the literature. Their quantum properties were determined using density functional theory (DFT). Static inhibitability, hydrogen-bonding interactions, and shape complementarity of the ligand-protein complexes were investigated using molecular docking (MD) simulation. All aromatic phenylpropenoids, eucalyptol (TH1), chavicol acetate (TH3), eugenol (TH4), trans-isoeugenol (TH5), and eugenol acetate (TH11), are predicted to form stable interactions with their targeted proteins and perform high degree of complementarity toward in-pose geometrical shapes. Regarding each variant, the most stable inhibitory systems are TH3-D614G (DS −11.9 kcal.mol−1; 3 hydrogen bonds), TH5-N501Y (DS −12.0 kcal.mol−1; 3 hydrogen bonds), and TH11-S477N (DS −12.5 kcal.mol−1; 4 hydrogen bonds). Lipinski’s rule of five justifies the physiochemical and pharmaceutical compatibility of all studied compounds. The results propose a chemotype for enzyme-inhibiting frameworks while still requiring further verification from relevant theoretical and experimental work. Graphical Abstract","PeriodicalId":53436,"journal":{"name":"Smart Science","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47607866","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