M. Antonov, I. Hussainova, M. Kalbarczyk, L. Liu, D. Maldonado-Cortés, R. Michalczewski, E. Osuch-Słomkaa, S. Sowa, Z. Słomka, M. Łuszcz
{"title":"The wear of PVD coated elements in oscillation motion at high temperature","authors":"M. Antonov, I. Hussainova, M. Kalbarczyk, L. Liu, D. Maldonado-Cortés, R. Michalczewski, E. Osuch-Słomkaa, S. Sowa, Z. Słomka, M. Łuszcz","doi":"10.3176/proc.2021.4.18","DOIUrl":"https://doi.org/10.3176/proc.2021.4.18","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"UWB monopole patch antenna with two H-shaped slots and dual-band notch for WLAN and WiMAX applications","authors":"F. Abayaje, B. M. Alameri, Y. S. Mezaal","doi":"10.3176/PROC.2021.2.05","DOIUrl":"https://doi.org/10.3176/PROC.2021.2.05","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69946788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. B. Arian, M. Ikram, Y. Jani, Asif Khan, Iqbal Khan, G. Michalski, M. Naeem, M. Shah, F. Subhan, H. Haq, Z. Vincevica-Gaile, M. Zahoor, S. Zeeshan, I. Zekker
{"title":"Multivariate statistical analysis of heavy metals and physico-chemical parameters in the groundwater of Karak District, Khyber Pakhtunkhwa, Pakistan","authors":"M. B. Arian, M. Ikram, Y. Jani, Asif Khan, Iqbal Khan, G. Michalski, M. Naeem, M. Shah, F. Subhan, H. Haq, Z. Vincevica-Gaile, M. Zahoor, S. Zeeshan, I. Zekker","doi":"10.3176/proc.2021.3.08","DOIUrl":"https://doi.org/10.3176/proc.2021.3.08","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. M. Bazaz, M. Ollikainen, S. Penttilä, J. Ratava, J. Varis
This study provides data and analysis on the state of digitalization of the manufacturing industries in the Baltic Sea Region. The compiled matrix contains entities on seven fields of operation and lists ten service and technology areas mapped from Denmark, Estonia, Finland, Latvia, Lithuania and Poland. A comparison of the collected data estimates the level of digitalization as well as identifies potential strengths and weaknesses by region. The available support structure is analysed to find potentially suitable partners to improve the level of digitalization in the enterprises of a region. Furthermore, the strength areas of each country are compared to weak areas to develop a roadmap to improve the readiness for implementation and use of Industry 4.0 functionality and tools. Examples are provided on the generation of a BusinesstoBusiness (B2B) focused platform to improve the level of technologies and services in use, an example is also presented to identify and implement a use case based on an identified need.
{"title":"Industry 4.0 readiness for the manufacturing sector in the Baltic Sea Region","authors":"S. M. Bazaz, M. Ollikainen, S. Penttilä, J. Ratava, J. Varis","doi":"10.3176/proc.2021.4.12","DOIUrl":"https://doi.org/10.3176/proc.2021.4.12","url":null,"abstract":"This study provides data and analysis on the state of digitalization of the manufacturing industries in the Baltic Sea Region. The compiled matrix contains entities on seven fields of operation and lists ten service and technology areas mapped from Denmark, Estonia, Finland, Latvia, Lithuania and Poland. A comparison of the collected data estimates the level of digitalization as well as identifies potential strengths and weaknesses by region. The available support structure is analysed to find potentially suitable partners to improve the level of digitalization in the enterprises of a region. Furthermore, the strength areas of each country are compared to weak areas to develop a roadmap to improve the readiness for implementation and use of Industry 4.0 functionality and tools. Examples are provided on the generation of a BusinesstoBusiness (B2B) focused platform to improve the level of technologies and services in use, an example is also presented to identify and implement a use case based on an identified need.","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Aissani, D. Bassir, M. Boukraa, T. Chekifi, N. Ighil, N. Lebaal, A. Mataoui
{"title":"Thermal analysis of the friction stir welding process based on boundary conditions and operating parameters","authors":"M. Aissani, D. Bassir, M. Boukraa, T. Chekifi, N. Ighil, N. Lebaal, A. Mataoui","doi":"10.3176/proc.2021.4.20","DOIUrl":"https://doi.org/10.3176/proc.2021.4.20","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Antonov, P. Klimczyk, R. Kumar, M. Tamre, A. Zahavi
{"title":"Performance of Al2O3-cBN materials and the perspective of using hyperspectral imaging during cutting tests","authors":"M. Antonov, P. Klimczyk, R. Kumar, M. Tamre, A. Zahavi","doi":"10.3176/proc.2021.4.21","DOIUrl":"https://doi.org/10.3176/proc.2021.4.21","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we study Morita contexts between rings without identity. We prove that if two associative rings are connected by a Morita context with surjective mappings, then these rings have isomorphic quantales of unitary ideals. We also show that the quotient rings by ideals that correspond to each other under that isomorphism are connected by a Morita context with surjective mappings. In addition, we consider how annihilators and two-sided socles behave under that isomorphism.
{"title":"Morita contexts and unitary ideals of rings","authors":"V. Laan, K. Väljako","doi":"10.3176/PROC.2021.2.02","DOIUrl":"https://doi.org/10.3176/PROC.2021.2.02","url":null,"abstract":"In this paper we study Morita contexts between rings without identity. We prove that if two associative rings are connected by a Morita context with surjective mappings, then these rings have isomorphic quantales of unitary ideals. We also show that the quotient rings by ideals that correspond to each other under that isomorphism are connected by a Morita context with surjective mappings. In addition, we consider how annihilators and two-sided socles behave under that isomorphism.","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69946738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coproducts in the category Seg of Segal topological algebras","authors":"M. Abel","doi":"10.3176/proc.2021.3.02","DOIUrl":"https://doi.org/10.3176/proc.2021.3.02","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69931739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, a new optimization approach is introduced to reduce vibration exerted on a double crankrocker mechanism. A dynamic analysis based on planar methods of this mechanism is suggested, and formulation of shaking forces and shaking moments inducing vibration on this system is presented. A twostep optimization technique is suggested to study system sensitivity to the components of shaking forces and moments to enhance the mechanism’s balancing process. This leads to identification of the most dominant parameters which are then used to formulate the objective functions of effective optimization. Each objective function is studied for each individual case, after which the outcome results of the mechanism’s balancing optimization are introduced and discussed.
{"title":"Tri-planar balancing optimization of a double crank-rocker mechanism for shaking forces and shaking moments reduction","authors":"A. M. Albaghdadi, M. Baharom, S. A. Sulaiman","doi":"10.3176/proc.2021.3.07","DOIUrl":"https://doi.org/10.3176/proc.2021.3.07","url":null,"abstract":"In this study, a new optimization approach is introduced to reduce vibration exerted on a double crankrocker mechanism. A dynamic analysis based on planar methods of this mechanism is suggested, and formulation of shaking forces and shaking moments inducing vibration on this system is presented. A twostep optimization technique is suggested to study system sensitivity to the components of shaking forces and moments to enhance the mechanism’s balancing process. This leads to identification of the most dominant parameters which are then used to formulate the objective functions of effective optimization. Each objective function is studied for each individual case, after which the outcome results of the mechanism’s balancing optimization are introduced and discussed.","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69931994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Autonomous vehicle safety evaluation through a high-fidelity simulation approach","authors":"B. Baykara, E. Malayjerdi, M. Malayjerdi, R. Sell","doi":"10.3176/proc.2021.4.07","DOIUrl":"https://doi.org/10.3176/proc.2021.4.07","url":null,"abstract":"","PeriodicalId":54577,"journal":{"name":"Proceedings of the Estonian Academy of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69932233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：