{"title":"The 9th Annual International Workshop on Materials Science and Engineering (IWMSE)","authors":"M. J. Lavorante, Hojjat Toiserkani","doi":"10.4028/b-d9rfqj","DOIUrl":"https://doi.org/10.4028/b-d9rfqj","url":null,"abstract":"","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"5 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646153","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}
With the increasing popularity of new teaching modes such as self-directed learning, contemporary higher education teaching buildings must adapt to more diversified and dynamic usage needs in terms of function and space. Based on the method of spatial adaptability, as well as behavioral characteristics of self-directed learning, we analyze the typical "rigid" spatial mode and its spatial adaptability problems in the existing higher education teaching buildings through the evaluation of higher education cases. We propose the "flexible" spatial mode for the transformation of contemporary higher education teaching buildings from the perspective of improving spatial adaptability; we discuss the main spatial reconfiguration features at three levels: Campus Space, Architectural Space, and Support System.
{"title":"Reconfiguration of Higher Education Teaching Buildings Based on Spatial Adaptability","authors":"Ping Su, Zi Xuan Wang, Lu Jiang","doi":"10.4028/p-s5ijmq","DOIUrl":"https://doi.org/10.4028/p-s5ijmq","url":null,"abstract":"With the increasing popularity of new teaching modes such as self-directed learning, contemporary higher education teaching buildings must adapt to more diversified and dynamic usage needs in terms of function and space. Based on the method of spatial adaptability, as well as behavioral characteristics of self-directed learning, we analyze the typical \"rigid\" spatial mode and its spatial adaptability problems in the existing higher education teaching buildings through the evaluation of higher education cases. We propose the \"flexible\" spatial mode for the transformation of contemporary higher education teaching buildings from the perspective of improving spatial adaptability; we discuss the main spatial reconfiguration features at three levels: Campus Space, Architectural Space, and Support System.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646349","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}
The genetic bat algorithm is being actively investigated for its application in the complex multi-objective product selective disassembly sequence planning problem. To broaden the scope of the search space and enhance the overall search efficiency, the traditional bat algorithm has undergone discretization, incorporating a cross-mutation mechanism into the construction of the fitness function model. To assess the efficacy of this novel approach, an industrial mechanical arm is utilized as a representative case study. Upon comparison with the traditional bat algorithm, the proposed method exhibits shorter convergence times across a range of population sizes, thus validating its effectiveness.
{"title":"Genetic Bat Algorithm-Based Multi-Objective Selective Disassembly Sequence Planning","authors":"Zhi Gang Xu","doi":"10.4028/p-pw66ig","DOIUrl":"https://doi.org/10.4028/p-pw66ig","url":null,"abstract":"The genetic bat algorithm is being actively investigated for its application in the complex multi-objective product selective disassembly sequence planning problem. To broaden the scope of the search space and enhance the overall search efficiency, the traditional bat algorithm has undergone discretization, incorporating a cross-mutation mechanism into the construction of the fitness function model. To assess the efficacy of this novel approach, an industrial mechanical arm is utilized as a representative case study. Upon comparison with the traditional bat algorithm, the proposed method exhibits shorter convergence times across a range of population sizes, thus validating its effectiveness.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"32 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141645595","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}
Qi Wang, Fang Ju Chen, Jun Wen Li, Jie Li, Jing Han, Xiang Li, Yue Li
The tight oil in the Fuyu oil layer in Sanzhao area of the Songliao Basin has huge resource and reserves, and has a good geological background for tight oil accumulation. It is the main direction of oil and gas exploration in recent years. The conditions and distribution rules of tight oil in Fuyu oil layer in Sanzhao area of Songliao Basin are analyzed by comprehensively using the data of geology, drilling, logging and geochemistry. The results indicate that there’s four favorable conditions for the formation of tight oil in study area: ①The crude oil has great properties and fluidity, and the formation conditions of tight oil are superior; ②The widely distributed high-quality source rock is close to the tight reservoir, that provides sufficient oil basis for the tight oil formation; ③The tight reservoirs distributed widely in a large area provide effective reservoir space for the tight reservoirs formation; ④Formation overpressure is organically matched with oil source faults, which offers sufficient power for tight oil to move downward. Finally, this article points out that the tight oil in Fuyu reservoir of Sanzhao area has the characteristics of large-area continuous distribution, strong heterogeneity, local "dessert" enrichment area, and the river sand body controls the local "dessert" enrichment area of tight oil.
{"title":"Formation Conditions and Distribution Law of Tight Oil in Fuyu Oil Layer, Sanzhao Area, Songliao Basin","authors":"Qi Wang, Fang Ju Chen, Jun Wen Li, Jie Li, Jing Han, Xiang Li, Yue Li","doi":"10.4028/p-3r0usz","DOIUrl":"https://doi.org/10.4028/p-3r0usz","url":null,"abstract":"The tight oil in the Fuyu oil layer in Sanzhao area of the Songliao Basin has huge resource and reserves, and has a good geological background for tight oil accumulation. It is the main direction of oil and gas exploration in recent years. The conditions and distribution rules of tight oil in Fuyu oil layer in Sanzhao area of Songliao Basin are analyzed by comprehensively using the data of geology, drilling, logging and geochemistry. The results indicate that there’s four favorable conditions for the formation of tight oil in study area: ①The crude oil has great properties and fluidity, and the formation conditions of tight oil are superior; ②The widely distributed high-quality source rock is close to the tight reservoir, that provides sufficient oil basis for the tight oil formation; ③The tight reservoirs distributed widely in a large area provide effective reservoir space for the tight reservoirs formation; ④Formation overpressure is organically matched with oil source faults, which offers sufficient power for tight oil to move downward. Finally, this article points out that the tight oil in Fuyu reservoir of Sanzhao area has the characteristics of large-area continuous distribution, strong heterogeneity, local \"dessert\" enrichment area, and the river sand body controls the local \"dessert\" enrichment area of tight oil.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"32 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141645450","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}
AbstractIn this paper,we consider the problem for identifying the unknown source inthe heat equation.The Meyer wavelet reqularization method is extended todeal with ill-posedness of the problem and error estimates are obtained.Itcan be seen from the literature that wavelet plays an important role inthe identification of unknown sources,but most of them focus on numericalverification without theoretical proof.In this paper,theoretical proof is givenand numerical examples show that the proposed method is effective andstable.
{"title":"Using Meyer Wavelet Method to Identify an Unknown Source in the Heat Equation","authors":"Xian Li Lv, Xiu Fang Feng","doi":"10.4028/p-jwwsp9","DOIUrl":"https://doi.org/10.4028/p-jwwsp9","url":null,"abstract":"AbstractIn this paper,we consider the problem for identifying the unknown source inthe heat equation.The Meyer wavelet reqularization method is extended todeal with ill-posedness of the problem and error estimates are obtained.Itcan be seen from the literature that wavelet plays an important role inthe identification of unknown sources,but most of them focus on numericalverification without theoretical proof.In this paper,theoretical proof is givenand numerical examples show that the proposed method is effective andstable.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"29 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647987","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}
Due to climate and environmental changes, the coral reef ecosystem has undergone severe degradation, leading to widespread bleaching, coral death, and a significant decline in live coral coverage. As a result, coral cultivation has become an urgent task, and the establishment of horticultural nurseries and the implementation of sexual reproduction for coral transplantation have emerged as crucial methods to address the scarcity of coral sources for transplantation. However, the selection of suitable attachment stones remains a challenge, as it significantly impacts the survival rates of transplanted corals. It is essential to choose appropriate base stones that not only align with the restoration of the original environment but also offer economic viability. The South China Sea coastline is abundant in sandstone, which possesses dense structure, large blocks, high porosity, and excellent water absorption characteristics, making it an ideal choice as a base stone for coral cultivation. Furthermore, these base stones can be shaped into familiar story scenes or characters, allowing for the creation of underwater coral gardens that serve as both a means of sustainable funding and a platform for scientific popularization and aesthetic education.By integrating these elements, a coral restoration and cultivation system can be developed, promoting a sustainable model that combines science education, aesthetic appreciation, and self-sustaining financial resources. This holistic approach not only addresses the pressing need for coral cultivation but also contributes to the preservation and revitalization of coral reef ecosystems.
{"title":"Research on Coral Cultivation and Base Stone Material","authors":"Jiang Xin, Hao Yuan Yang, Shu Ping Cao","doi":"10.4028/p-8z7w2g","DOIUrl":"https://doi.org/10.4028/p-8z7w2g","url":null,"abstract":"Due to climate and environmental changes, the coral reef ecosystem has undergone severe degradation, leading to widespread bleaching, coral death, and a significant decline in live coral coverage. As a result, coral cultivation has become an urgent task, and the establishment of horticultural nurseries and the implementation of sexual reproduction for coral transplantation have emerged as crucial methods to address the scarcity of coral sources for transplantation. However, the selection of suitable attachment stones remains a challenge, as it significantly impacts the survival rates of transplanted corals. It is essential to choose appropriate base stones that not only align with the restoration of the original environment but also offer economic viability. The South China Sea coastline is abundant in sandstone, which possesses dense structure, large blocks, high porosity, and excellent water absorption characteristics, making it an ideal choice as a base stone for coral cultivation. Furthermore, these base stones can be shaped into familiar story scenes or characters, allowing for the creation of underwater coral gardens that serve as both a means of sustainable funding and a platform for scientific popularization and aesthetic education.By integrating these elements, a coral restoration and cultivation system can be developed, promoting a sustainable model that combines science education, aesthetic appreciation, and self-sustaining financial resources. This holistic approach not only addresses the pressing need for coral cultivation but also contributes to the preservation and revitalization of coral reef ecosystems.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"32 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648362","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}
Central damage is the serious defect of horizontal wedge rolling products. The method of combining testing and numerical simulation is used to study the mechanism of central Damage. It represents the evolution process of the start, growth and agglomeration of the GH4169 alloy blades in the horizontal wedge rolling process, and combines the microre porosity shape with the stress-strain state to reveal the mechanism of central Damage. On the basis of analyzing the stress and strain characteristics of the forging center, the effect of mold process parameters on the center damage was studied. Studies have found that the micropores of the center of the forged blank are formed around non-metal miscellaneous objects. Through growth and agglomeration, it becomes a macro-damage in the direction of shear stress and stress, Causes center damage.
{"title":"Research on the Formation Mechanism for Formation Mechanism for Formation Mechanism for Micro-Damage of Alloy Blades of Wedge","authors":"Kai Huang, Shuang Fang, Ya Qin Chen, Yingying Lin","doi":"10.4028/p-qy0rpd","DOIUrl":"https://doi.org/10.4028/p-qy0rpd","url":null,"abstract":"Central damage is the serious defect of horizontal wedge rolling products. The method of combining testing and numerical simulation is used to study the mechanism of central Damage. It represents the evolution process of the start, growth and agglomeration of the GH4169 alloy blades in the horizontal wedge rolling process, and combines the microre porosity shape with the stress-strain state to reveal the mechanism of central Damage. On the basis of analyzing the stress and strain characteristics of the forging center, the effect of mold process parameters on the center damage was studied. Studies have found that the micropores of the center of the forged blank are formed around non-metal miscellaneous objects. Through growth and agglomeration, it becomes a macro-damage in the direction of shear stress and stress, Causes center damage.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646234","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}
Three kinds of carbon fiber reinforced epoxy resin prepreg, T300, T700 and M40X, were selected to prepare carbon fiber reinforced epoxy resin composites by molding method. The flexural properties, interlaminar shear properties and compression properties of the composites were studied, and the micro morphology of the composites was analyzed. The results show that the flexural strength, interlaminar shear strength and compressive strength of T700 fiber reinforced epoxy resin composites are higher than those of M40X carbon fiber reinforced epoxy resin composites, and the resultant mechanical properties of T700 carbon fiber reinforced epoxy resin composites are relatively optimal.
{"title":"Research on Mechanical Properties of Different Carbon Fiber Reinforced Epoxy Resin Composite Materials","authors":"Jian Qin Zhang","doi":"10.4028/p-87pc8a","DOIUrl":"https://doi.org/10.4028/p-87pc8a","url":null,"abstract":"Three kinds of carbon fiber reinforced epoxy resin prepreg, T300, T700 and M40X, were selected to prepare carbon fiber reinforced epoxy resin composites by molding method. The flexural properties, interlaminar shear properties and compression properties of the composites were studied, and the micro morphology of the composites was analyzed. The results show that the flexural strength, interlaminar shear strength and compressive strength of T700 fiber reinforced epoxy resin composites are higher than those of M40X carbon fiber reinforced epoxy resin composites, and the resultant mechanical properties of T700 carbon fiber reinforced epoxy resin composites are relatively optimal.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"32 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141649075","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}
Yi Fan Zhao, W. Zhang, Zhen Ting Shi, Jun Ying Jin, W. Zhang
This paper reviews the results of research on the hydrodynamic characteristics of fine gully erosion, including parameters such as flow velocity, runoff depth and flow resistance. Experimental and simulation studies are carried out to address the problem of fine gully erosion in purple and loess areas, revealing the importance of fine gully erosion in hydraulic erosion. It has certain reference value for the establishment of hydrological and soil erosion modeling.
{"title":"Characterization of the Hydrodynamics of Fine Channel Erosion on Slopes","authors":"Yi Fan Zhao, W. Zhang, Zhen Ting Shi, Jun Ying Jin, W. Zhang","doi":"10.4028/p-nyn4eu","DOIUrl":"https://doi.org/10.4028/p-nyn4eu","url":null,"abstract":"This paper reviews the results of research on the hydrodynamic characteristics of fine gully erosion, including parameters such as flow velocity, runoff depth and flow resistance. Experimental and simulation studies are carried out to address the problem of fine gully erosion in purple and loess areas, revealing the importance of fine gully erosion in hydraulic erosion. It has certain reference value for the establishment of hydrological and soil erosion modeling.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"31 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141645627","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}
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