With the continuous development of society and economy, the employment standard for talents in various enterprises is also constantly improving. For engineering majors in colleges and universities, how to cultivate st...With the continuous development of society and economy, the employment standard for talents in various enterprises is also constantly improving. For engineering majors in colleges and universities, how to cultivate students' practical ability and innovation ability is an important part of the talent training goal, which must be separated from the role of production practice. The production practice link enables students to flexibly apply the theoretical knowledge they have mastered to the practice process, which has a very good effect on improving students' practical innovation ability. Therefore, it has gradually become a hot topic of teaching reform in colleges and universities. This paper mainly analyzes some common problems in the production practice of material forming and control engineering specialty at the present stage, and puts forward some effective reform and practice strategies for reference.展开更多
The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively ...The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively channel mechanical energy and facilitate directed sound propagation, controlled mass transport, and concentration of mechanical energy amidst random motion. This article explores the fundamentals of mechanically one-way materials, their potential applications across various industries, and the economic and environmental considerations related to their production and use.展开更多
The main material of concrete is a construction building material composed of water and mineral mixture and cement and chemical additives in the corresponding proportion and below the standard.In the process of making...The main material of concrete is a construction building material composed of water and mineral mixture and cement and chemical additives in the corresponding proportion and below the standard.In the process of making concrete material,slurry and cement are needed to mix,then cement slurry and sand are mixed into mortar according to the corresponding proportion,and aggregate is added to mortar to form concrete building material.In the process of concrete preparation,the most important construction link is mixing,which needs to be fully stirred to make the performance of concrete meet the construction needs.In the process of concrete construction technology development,both mix ratio and production technology have become more and more mature,but there are still some problems,which have an impact on the quality of concrete[1].Therefore,this paper discusses the quality control of concrete raw materials according to the construction process of road and bridge.展开更多
In the construction project, the whole process cost control plays an important role in the scientific and accurate control of the construction cost. On the premise of ensuring the construction quality and safety stand...In the construction project, the whole process cost control plays an important role in the scientific and accurate control of the construction cost. On the premise of ensuring the construction quality and safety standards, improve the design control and management level, so as to obtain maximum efficiency and conform to the best development of the company. The whole process price control not only effectively strengthens the capital construction plan in the construction process, but also stimulates the capital flow. The relevant work must be carried out according to the plan, which plays a certain role in the quality control and management of some construction projects. However, the whole price control process reflects certain complexity and particularity. Therefore, it is necessary to ensure the effective pricing and control at all stages of construction and improve the quality of cost control.展开更多
An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, clo...An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, cloud data de-noising optimization, construction, display and operation of three-dimensional model, model editing, profile generation, calculation of goaf volume and roof area, Boolean calculation among models and interaction with the third party soft ware. Concerning this system with a concise interface, plentiful data input/output interfaces, it is featured with high integration, simple and convenient operations of applications. According to practice, in addition to being well-adapted, this system is favorably reliable and stable.展开更多
Bacterial adhesion to surfaces and subsequent biofilm formation are a leading cause of chronic infections and biofouling. These processes are highly sensitive to environmental factors and present a challenge to resear...Bacterial adhesion to surfaces and subsequent biofilm formation are a leading cause of chronic infections and biofouling. These processes are highly sensitive to environmental factors and present a challenge to research using traditional approaches with uncontrolled surfaces. Recent advances in materials research and surface engineering have brought exciting opportunities to pattern bacterial cell clusters and to obtain synthetic biofilms with well-controlled cell density and morphology of cell clusters. In this article, achievements in this field directions. we will review the recent and comment on the future展开更多
文摘With the continuous development of society and economy, the employment standard for talents in various enterprises is also constantly improving. For engineering majors in colleges and universities, how to cultivate students' practical ability and innovation ability is an important part of the talent training goal, which must be separated from the role of production practice. The production practice link enables students to flexibly apply the theoretical knowledge they have mastered to the practice process, which has a very good effect on improving students' practical innovation ability. Therefore, it has gradually become a hot topic of teaching reform in colleges and universities. This paper mainly analyzes some common problems in the production practice of material forming and control engineering specialty at the present stage, and puts forward some effective reform and practice strategies for reference.
文摘The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively channel mechanical energy and facilitate directed sound propagation, controlled mass transport, and concentration of mechanical energy amidst random motion. This article explores the fundamentals of mechanically one-way materials, their potential applications across various industries, and the economic and environmental considerations related to their production and use.
文摘The main material of concrete is a construction building material composed of water and mineral mixture and cement and chemical additives in the corresponding proportion and below the standard.In the process of making concrete material,slurry and cement are needed to mix,then cement slurry and sand are mixed into mortar according to the corresponding proportion,and aggregate is added to mortar to form concrete building material.In the process of concrete preparation,the most important construction link is mixing,which needs to be fully stirred to make the performance of concrete meet the construction needs.In the process of concrete construction technology development,both mix ratio and production technology have become more and more mature,but there are still some problems,which have an impact on the quality of concrete[1].Therefore,this paper discusses the quality control of concrete raw materials according to the construction process of road and bridge.
文摘In the construction project, the whole process cost control plays an important role in the scientific and accurate control of the construction cost. On the premise of ensuring the construction quality and safety standards, improve the design control and management level, so as to obtain maximum efficiency and conform to the best development of the company. The whole process price control not only effectively strengthens the capital construction plan in the construction process, but also stimulates the capital flow. The relevant work must be carried out according to the plan, which plays a certain role in the quality control and management of some construction projects. However, the whole price control process reflects certain complexity and particularity. Therefore, it is necessary to ensure the effective pricing and control at all stages of construction and improve the quality of cost control.
基金Project(51274250)supported by the National Natural Science Foundation of ChinaProject(2012BAK09B02-05)supported by the National Key Technology R&D Program during the 12th Five-year Plan of China
文摘An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, cloud data de-noising optimization, construction, display and operation of three-dimensional model, model editing, profile generation, calculation of goaf volume and roof area, Boolean calculation among models and interaction with the third party soft ware. Concerning this system with a concise interface, plentiful data input/output interfaces, it is featured with high integration, simple and convenient operations of applications. According to practice, in addition to being well-adapted, this system is favorably reliable and stable.
文摘Bacterial adhesion to surfaces and subsequent biofilm formation are a leading cause of chronic infections and biofouling. These processes are highly sensitive to environmental factors and present a challenge to research using traditional approaches with uncontrolled surfaces. Recent advances in materials research and surface engineering have brought exciting opportunities to pattern bacterial cell clusters and to obtain synthetic biofilms with well-controlled cell density and morphology of cell clusters. In this article, achievements in this field directions. we will review the recent and comment on the future
