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Experimental Study on Kaiser Effect of Reinforced Concrete Simply-Supported Beams 钢筋混凝土简支梁Kaiser效应试验研究
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20230208000334
Yongfeng Xu, Hailong Wang, Tengfei He, Jiajun Ma, Pengfei Zhao, Anquan Ji, Lei Liu, Yang Liu
{"title":"Experimental Study on Kaiser Effect of Reinforced Concrete Simply-Supported Beams","authors":"Yongfeng Xu, Hailong Wang, Tengfei He, Jiajun Ma, Pengfei Zhao, Anquan Ji, Lei Liu, Yang Liu","doi":"10.17559/tv-20230208000334","DOIUrl":"https://doi.org/10.17559/tv-20230208000334","url":null,"abstract":": With the progress of transportation, an increasing number of bridges are put into operation, and the assessment of bridge bearing capacity is considered a significant measure to ensure bridge safety. As a critical approach for structural monitoring, acoustic emission is widely used in engineering projects. Since the Kaiser effect is an important phenomenon in acoustic emission, it is necessary to explore the Kaiser effect of reinforced concrete structures and the determination method of the Kaiser point. In this thesis, four reinforced concrete simply supported beams were utilized for the graded loading experiment under bending loads. After accumulating acoustic emission parameters, Kaiser point was selected for preliminary evaluation. Taking Kaiser point as the midpoint, the appropriate interval was determined. According to the continuity criterion of acoustic emission signals and the quadratic fitting curve based on experimental data, the Kaiser point was corrected by following the average growth rate of acoustic emission parameters. These simply supported beams were classified into two groups. One group was used to explore the acoustic emission characteristics when the load was less than the historical maximum, while the other group was used to analyze changes in the Kaiser effect with increasing load. Finally, based on the results of the specimen inspection, the influence of initial damage on the Kaiser effect was analyzed. The research results alleviated the influence of human factors on the determination of the Kaiser point and can serve as the theoretical basis for damage monitoring based on the Kaiser effect and bearing capacity evaluation of reinforced concrete structures.","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85784362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance Evaluation of Novel Rare Earth Free Magnets Based Motors for Electric Vehicle Applications 新型电动汽车用无稀土磁体电机性能评价
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20220912160544
{"title":"Performance Evaluation of Novel Rare Earth Free Magnets Based Motors for Electric Vehicle Applications","authors":"","doi":"10.17559/tv-20220912160544","DOIUrl":"https://doi.org/10.17559/tv-20220912160544","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75870195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Retempering with Superplasticizer on Fresh and Hardened Properties of Prolonged Mixed Concretes Containing Supplementary Cementitious Materials 高效减水剂再调对含补充胶凝材料的长拌混凝土新拌性能和硬化性能的影响
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20230316000446
{"title":"Influence of Retempering with Superplasticizer on Fresh and Hardened Properties of Prolonged Mixed Concretes Containing Supplementary Cementitious Materials","authors":"","doi":"10.17559/tv-20230316000446","DOIUrl":"https://doi.org/10.17559/tv-20230316000446","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72507122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Investigation of External Factors for Wireless Capacitive Power Transfer Systems 无线电容式电力传输系统的外部因素研究
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20221025175517
{"title":"Investigation of External Factors for Wireless Capacitive Power Transfer Systems","authors":"","doi":"10.17559/tv-20221025175517","DOIUrl":"https://doi.org/10.17559/tv-20221025175517","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90367880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Power Losses in Constrained Cycloid Drive 约束摆线传动的功率损耗分析
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20230426000572
MA Tihomir, Ki, Nenad Marjanovi, Milan Tica, S. Troha, Miroslav Milutinovi, Nebojša Rašovi
{"title":"Analysis of Power Losses in Constrained Cycloid Drive","authors":"MA Tihomir, Ki, Nenad Marjanovi, Milan Tica, S. Troha, Miroslav Milutinovi, Nebojša Rašovi","doi":"10.17559/tv-20230426000572","DOIUrl":"https://doi.org/10.17559/tv-20230426000572","url":null,"abstract":": The aim of this paper is to present a theoretical model for efficiency evaluation of a simple cycloid drive train with one degree of freedom (DOF) or constrained cycloid drive. In order to evaluate the efficiency, it is necessary to find the losses generated in the simple cycloid drive, where only losses depending on the load were considered. Expressions for determining speed ratios, efficiency, velocities and forces acting inside the cycloid drive are presented. These expressions are implemented in the theoretical model, where the places where the losses occur are defined. A computer program was created to facilitate analysis and obtain loss values based on different input data. Only load-dependent losses were considered in the theoretical model and computer program. In order to verify the theoretical model, experimental measurements were performed. A physical model of the simple cycloid drive train was created and analyzed on the test bench. The results for \" S 1\" operating mode, i.e. when shaft 2 is stopped, show a mean value of the efficiency of 63.49%, for experimental measurements, while the mean value for theoretical analysis is 65.25%. For the operating mode \" S 2\", i.e. with shaft 1 stopped, the mean value of the experimental measurements of the efficiency is 60.9%, while the theoretical mean value is 62.82%.","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80454334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pattern Anomaly Detection based on Sequence-to-Sequence Regularity Learning 基于序列到序列规则学习的模式异常检测
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20230325000479
{"title":"Pattern Anomaly Detection based on Sequence-to-Sequence Regularity Learning","authors":"","doi":"10.17559/tv-20230325000479","DOIUrl":"https://doi.org/10.17559/tv-20230325000479","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83012394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Examining the Supply Chain Management Models for Agricultural Products Under the Context of E-Commerce 电子商务背景下的农产品供应链管理模式研究
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20221226034415
{"title":"Examining the Supply Chain Management Models for Agricultural Products Under the Context of E-Commerce","authors":"","doi":"10.17559/tv-20221226034415","DOIUrl":"https://doi.org/10.17559/tv-20221226034415","url":null,"abstract":": Agricultural products market changes constantly along with the thriving of e-commerce and agricultural products e-commerce keeps growing as an innovative industry; however, there are still many loopholes in the management of the supply chain from beginning to end. In order to effectively address these issues, this paper utilizes the dynamic requirement forecasting method based on SVM (support vector machine) to identify and fit the secular trend in and potential cyclical fluctuation factors for the market requirements for agricultural products. The supply chain coordination decision center is established by integrating the collaborative supply management component and other components. XML technology and CORBA technology are adopted to construct the integrated management model of agricultural products supply chain in e-commerce environment. For its relatively high management level, the model established can promote both agricultural consumption and agricultural economic output, strengthen the competitiveness of enterprises in agricultural products market and realize maximization of profit targets.","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81934561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of High Density Resistivity Method in Karst Exploration: A Case Study 高密度电阻率法在岩溶勘探中的应用
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20230205000322
{"title":"Application of High Density Resistivity Method in Karst Exploration: A Case Study","authors":"","doi":"10.17559/tv-20230205000322","DOIUrl":"https://doi.org/10.17559/tv-20230205000322","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79962989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a Neural Network Algorithm for Estimating the Makespan in Jobshop Production Scheduling 作业车间生产调度中最大完工时间估计的神经网络算法
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20220818161430
{"title":"Development of a Neural Network Algorithm for Estimating the Makespan in Jobshop Production Scheduling","authors":"","doi":"10.17559/tv-20220818161430","DOIUrl":"https://doi.org/10.17559/tv-20220818161430","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74238280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Urban End-Delivery Paths Considering the Consumer's Delivery Time Demand 考虑消费者配送时间需求的城市终端配送路径研究
IF 0.9 4区 工程技术
Tehnicki Vjesnik-Technical Gazette Pub Date : 2023-08-15 DOI: 10.17559/tv-20221212144331
{"title":"Research on Urban End-Delivery Paths Considering the Consumer's Delivery Time Demand","authors":"","doi":"10.17559/tv-20221212144331","DOIUrl":"https://doi.org/10.17559/tv-20221212144331","url":null,"abstract":"","PeriodicalId":49443,"journal":{"name":"Tehnicki Vjesnik-Technical Gazette","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85387258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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