The problems including excessive flow of attemperating water for boiler, failure of butterfly valve at the outlet of circulating water pump, burnt-out of thyristor for excitation regulator, load variation rate of CCS ...The problems including excessive flow of attemperating water for boiler, failure of butterfly valve at the outlet of circulating water pump, burnt-out of thyristor for excitation regulator, load variation rate of CCS not complying with the contract target, etc. occurred during start-up and debugging of two 600 MW generating units in Yangzhou No.2 Thermal Power Plant. Through analysis on these problems. the remedial measures were put forward, to which can be referred for similar units.展开更多
In recent years, with the level of urban planning and construction in China becoming higher and higher, people from all walks of life began to pay more and more attention to the related work of landscape engineering. ...In recent years, with the level of urban planning and construction in China becoming higher and higher, people from all walks of life began to pay more and more attention to the related work of landscape engineering. If we want to further improve the construction quality of landscape engineering, we must pay full attention to a series of work in the construction site. This article first elaborated the garden landscape project afforestation construction development present stage existence some questions, and proposed several concrete feasible reference measures in this foundation.展开更多
The engineering geological and hydrogeological prospecting work, is the important basis of the engineering design and construction of project smoothly, in order to be able to effectively reduce the engineering geologi...The engineering geological and hydrogeological prospecting work, is the important basis of the engineering design and construction of project smoothly, in order to be able to effectively reduce the engineering geological conditions and the impact of water environment on the construction quality, will have to be carried out before construction and hydrogeological exploration engineering address, and a comprehensive data collection, analysis and evaluation to the construction site. Through the analysis of relevant data, to develop a scientific and effective scheme for construction, to ensure the design scheme, in order to promote the development of Chinese engineering industry.展开更多
The emergence of high-rise civil buildings not only alleviates the current situation of urban land shortage, but also meets everyone's own needs.At present, high-rise buildings continue to emerge, and its proporti...The emergence of high-rise civil buildings not only alleviates the current situation of urban land shortage, but also meets everyone's own needs.At present, high-rise buildings continue to emerge, and its proportion is also relatively high in the proportion of new buildings.Compared with low-rise buildings, fire prevention of high-rise civil buildings is difficult, which is also known as an important issue of current concern.Therefore, in practice, it is necessary to strengthen the research on the fire protection design of high-rise civil buildings, try to improve the fire protection of buildings and reduce the negative impact of fire.Based on this, this paper discusses the problem analysis and Countermeasures of fire protection design of high-rise civil buildings.展开更多
The rapid development of social economy brings great attention to sewage treatment. In the sewage treatment of urban environmental engineering, sewage treatment has attracted the attention of environmental protection....The rapid development of social economy brings great attention to sewage treatment. In the sewage treatment of urban environmental engineering, sewage treatment has attracted the attention of environmental protection. In the treatment of urban environmental engineering sewage, there are certain sewage treatment problems, this part of the problem will become the first concern in contemporary cities. Because it compared with other resources, China's freshwater resources share is low, which will indirectly make the sewage problem in urban areas more and more difficult.展开更多
Recently, the domestic real estate environment is good, the rapid development of China's real estate industry for real estate transactions, there is a positive direction, the sales increased year by year. Real est...Recently, the domestic real estate environment is good, the rapid development of China's real estate industry for real estate transactions, there is a positive direction, the sales increased year by year. Real estate sales price is in the housing area multiplied by the real estate unit sales price, so the accuracy of the real estate is directly related to the interests of property owners and developers, and in order to comprehensive management of housing area chart, the housing authority must use housing area chart to manage the property, and to help the owner to maintain its interests, and strictly control the housing area chart, in order to avoid interference, reduce errors. This paper mainly expounds the two meanings of the real estate surface, and analyzes the common problems in the mapping of the real estate surface, so that the peer in the mapping of the real estate surface reference.展开更多
If the indoor drainage pipe is blocked and the drainage is not smooth,sewage and pollutants will enter the room and endanger human health.If the pipeline is blocked as a result,a certain intensity of water pressure ma...If the indoor drainage pipe is blocked and the drainage is not smooth,sewage and pollutants will enter the room and endanger human health.If the pipeline is blocked as a result,a certain intensity of water pressure may be brought,which may cause pipeline leakage.In this article,we will analyze and explain the quality problems that often occur during the construction process due to the blockage of the internal drainage pipe,and propose appropriate methods and solutions to improve the quality of the project.展开更多
In this work, the finite element analysis of the elasto-plastic plate bending problems is carried out using transition rectangular plate elements. The shape functions of the transition plate elements are derived based...In this work, the finite element analysis of the elasto-plastic plate bending problems is carried out using transition rectangular plate elements. The shape functions of the transition plate elements are derived based on a practical rule. The transition plate elements are all quadrilateral and can be used to obtain efficient finite element models using minimum number of elements. The mesh convergence rates of the models including the transition elements are compared with the regular element models. To verify the developed elements, simple tests are demonstrated and various elasto-plastic problems are solved. Their results are compared with ANSYS results.展开更多
In this paper, a new finite element method for the flow analysis of the viscous incompressible power-law fluid is proposed by the use of penalty-hybrid/mixed finite element formulation and by the introduction of an al...In this paper, a new finite element method for the flow analysis of the viscous incompressible power-law fluid is proposed by the use of penalty-hybrid/mixed finite element formulation and by the introduction of an alternative perturbation, which is weighted by viscosity, of the continuity equation. A numerical example is presented to exhibit the efficiency of the method.展开更多
Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology i...Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology in construction industry, then the emergence of the BIM technology shall fully deserved to be treated as a second innovation in construction industry. As a new technology which have been introduced to China in recent years, BIM technology already had its major application in foreigner countries .This paper focuses on the current status of BIM technology application in our country, especially on some small and medium enterprises using the traditional BIM technology to handle the project which have complex usage,creative deign and cost limitation. Firstly,we take a deep analysis on the initial application situation. Then we go through the practical application and analyse what benefit can be given to a project from BIM technology. Finally, analyse the problems and solutions in BIM application with consideration of Chinese building engineering development. Only after a careful analysis, a deep understanding of BIM, we can fully understand this new technology and make BIM to give its value to construction project.展开更多
Under the new situation of ecological civilization construction, the environmental monitoring work has received wide attention from all circles. The measures of environmental protection need the results of environment...Under the new situation of ecological civilization construction, the environmental monitoring work has received wide attention from all circles. The measures of environmental protection need the results of environmental monitoring as the basis of evaluation, and people's requirements on the quality of environmental monitoring are constantly improving. The following will briefly describe the existing problems in the current quality of ecological environment monitoring and put forward reasonable solutions.展开更多
With the rapid development of social economy, mechanical engineering equipment installation technology is also widely used, which provides a reliable guarantee for the overall operation efficiency and quality of mecha...With the rapid development of social economy, mechanical engineering equipment installation technology is also widely used, which provides a reliable guarantee for the overall operation efficiency and quality of mechanical engineering equipment. Therefore, it is necessary to fully grasp the key operation points and specification requirements of the technology in order to further improve the installation quality of mechanical engineering equipment. However, in the process of practical application, there are many problems in the installation technology of mechanical engineering equipment. This paper focuses on the analysis of these problems, and puts forward the corresponding quality control measures for reference.展开更多
With the steady improvement of China's economic level, the number of CNG vehicles in China has gradually increased, and the number of CNG parent stations has also shown an increasing trend. However, from the opera...With the steady improvement of China's economic level, the number of CNG vehicles in China has gradually increased, and the number of CNG parent stations has also shown an increasing trend. However, from the operation of CNG parent stations, China still has great limitations in safety management and energy conservation and consumption reduction of CNG parent stations, especially the problem of energy conservation and consumption reduction, and the relevant technical system is not mature. It leads to various problems in the operation of CNG master station. In the specific operation process, some operators’ awareness of energy conservation and consumption reduction is not strong, the management system is not implemented in place, the design is unreasonable, and there are errors in equipment operation, which will cause the energy loss of CNG master station to a certain extent. In order to minimize the energy loss of CNG master station, we should analyze from multiple angles, find out the causes of energy loss, formulate targeted solutions, effectively improve the operation efficiency of CNG master station and control its energy loss. Based on this, this paper gives a detailed overview of the relevant contents of energy saving and consumption reduction of CNG parent station.展开更多
This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both t...This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both theoretical and practical interest.展开更多
Ground fissure hazards frequently emerge in Hebei Plain, which damage roads, dams, buildings and farmland. The paper reviews and analyses current state of knowledge and research into ground fissure and geological envi...Ground fissure hazards frequently emerge in Hebei Plain, which damage roads, dams, buildings and farmland. The paper reviews and analyses current state of knowledge and research into ground fissure and geological environment in Hebei Plain. It is shown that the level of research and investigation is in some aspects insufficient. Knowledge is lacking in the use of corresponding geological concept models for specific ground fissures, three-dimensional numerical simulations of ground fissures caused by pumping through soil with pre-existing fractures, numerical simulations of ground fissures caused by dislocation in intersection faults, and the failure criterion and the constitutive relationship of rock and soil. Furthermore, we put forward geological concept models for ground fissure formation following the dislocation of a buried intersection fault, over-exploitation of groundwater and its compound origin mechanisms in order to provide scientific evidence for the quantitative analysis.展开更多
Based on the deepening awareness of the risk of changing packaging materials of injections,the national regulatory authorities and the China National Pharmaceutical Packaging Association have issued the relevant guide...Based on the deepening awareness of the risk of changing packaging materials of injections,the national regulatory authorities and the China National Pharmaceutical Packaging Association have issued the relevant guidelines and group standards for changing packaging materials in recent years,greatly improving the research and development and technical requirements of packaging materials of injections.In 2021,Guangdong Province carried out the archival examination of the change of listed drugs,among which the proportion of the acceptance of changed injection packaging materials has increased year by year.On the basis of sorting out the archival examination work and combining with the cases of changing packaging materials of chemical injections accepted by Guangdong Province during 2021-2022,the requirements and problems of archival examination were analyzed and discussed to provide a reference and idea for applicants when studying the change in packaging materials.展开更多
文摘The problems including excessive flow of attemperating water for boiler, failure of butterfly valve at the outlet of circulating water pump, burnt-out of thyristor for excitation regulator, load variation rate of CCS not complying with the contract target, etc. occurred during start-up and debugging of two 600 MW generating units in Yangzhou No.2 Thermal Power Plant. Through analysis on these problems. the remedial measures were put forward, to which can be referred for similar units.
文摘In recent years, with the level of urban planning and construction in China becoming higher and higher, people from all walks of life began to pay more and more attention to the related work of landscape engineering. If we want to further improve the construction quality of landscape engineering, we must pay full attention to a series of work in the construction site. This article first elaborated the garden landscape project afforestation construction development present stage existence some questions, and proposed several concrete feasible reference measures in this foundation.
文摘The engineering geological and hydrogeological prospecting work, is the important basis of the engineering design and construction of project smoothly, in order to be able to effectively reduce the engineering geological conditions and the impact of water environment on the construction quality, will have to be carried out before construction and hydrogeological exploration engineering address, and a comprehensive data collection, analysis and evaluation to the construction site. Through the analysis of relevant data, to develop a scientific and effective scheme for construction, to ensure the design scheme, in order to promote the development of Chinese engineering industry.
文摘The emergence of high-rise civil buildings not only alleviates the current situation of urban land shortage, but also meets everyone's own needs.At present, high-rise buildings continue to emerge, and its proportion is also relatively high in the proportion of new buildings.Compared with low-rise buildings, fire prevention of high-rise civil buildings is difficult, which is also known as an important issue of current concern.Therefore, in practice, it is necessary to strengthen the research on the fire protection design of high-rise civil buildings, try to improve the fire protection of buildings and reduce the negative impact of fire.Based on this, this paper discusses the problem analysis and Countermeasures of fire protection design of high-rise civil buildings.
文摘The rapid development of social economy brings great attention to sewage treatment. In the sewage treatment of urban environmental engineering, sewage treatment has attracted the attention of environmental protection. In the treatment of urban environmental engineering sewage, there are certain sewage treatment problems, this part of the problem will become the first concern in contemporary cities. Because it compared with other resources, China's freshwater resources share is low, which will indirectly make the sewage problem in urban areas more and more difficult.
文摘Recently, the domestic real estate environment is good, the rapid development of China's real estate industry for real estate transactions, there is a positive direction, the sales increased year by year. Real estate sales price is in the housing area multiplied by the real estate unit sales price, so the accuracy of the real estate is directly related to the interests of property owners and developers, and in order to comprehensive management of housing area chart, the housing authority must use housing area chart to manage the property, and to help the owner to maintain its interests, and strictly control the housing area chart, in order to avoid interference, reduce errors. This paper mainly expounds the two meanings of the real estate surface, and analyzes the common problems in the mapping of the real estate surface, so that the peer in the mapping of the real estate surface reference.
文摘If the indoor drainage pipe is blocked and the drainage is not smooth,sewage and pollutants will enter the room and endanger human health.If the pipeline is blocked as a result,a certain intensity of water pressure may be brought,which may cause pipeline leakage.In this article,we will analyze and explain the quality problems that often occur during the construction process due to the blockage of the internal drainage pipe,and propose appropriate methods and solutions to improve the quality of the project.
文摘In this work, the finite element analysis of the elasto-plastic plate bending problems is carried out using transition rectangular plate elements. The shape functions of the transition plate elements are derived based on a practical rule. The transition plate elements are all quadrilateral and can be used to obtain efficient finite element models using minimum number of elements. The mesh convergence rates of the models including the transition elements are compared with the regular element models. To verify the developed elements, simple tests are demonstrated and various elasto-plastic problems are solved. Their results are compared with ANSYS results.
文摘In this paper, a new finite element method for the flow analysis of the viscous incompressible power-law fluid is proposed by the use of penalty-hybrid/mixed finite element formulation and by the introduction of an alternative perturbation, which is weighted by viscosity, of the continuity equation. A numerical example is presented to exhibit the efficiency of the method.
文摘Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology in construction industry, then the emergence of the BIM technology shall fully deserved to be treated as a second innovation in construction industry. As a new technology which have been introduced to China in recent years, BIM technology already had its major application in foreigner countries .This paper focuses on the current status of BIM technology application in our country, especially on some small and medium enterprises using the traditional BIM technology to handle the project which have complex usage,creative deign and cost limitation. Firstly,we take a deep analysis on the initial application situation. Then we go through the practical application and analyse what benefit can be given to a project from BIM technology. Finally, analyse the problems and solutions in BIM application with consideration of Chinese building engineering development. Only after a careful analysis, a deep understanding of BIM, we can fully understand this new technology and make BIM to give its value to construction project.
文摘Under the new situation of ecological civilization construction, the environmental monitoring work has received wide attention from all circles. The measures of environmental protection need the results of environmental monitoring as the basis of evaluation, and people's requirements on the quality of environmental monitoring are constantly improving. The following will briefly describe the existing problems in the current quality of ecological environment monitoring and put forward reasonable solutions.
文摘With the rapid development of social economy, mechanical engineering equipment installation technology is also widely used, which provides a reliable guarantee for the overall operation efficiency and quality of mechanical engineering equipment. Therefore, it is necessary to fully grasp the key operation points and specification requirements of the technology in order to further improve the installation quality of mechanical engineering equipment. However, in the process of practical application, there are many problems in the installation technology of mechanical engineering equipment. This paper focuses on the analysis of these problems, and puts forward the corresponding quality control measures for reference.
文摘With the steady improvement of China's economic level, the number of CNG vehicles in China has gradually increased, and the number of CNG parent stations has also shown an increasing trend. However, from the operation of CNG parent stations, China still has great limitations in safety management and energy conservation and consumption reduction of CNG parent stations, especially the problem of energy conservation and consumption reduction, and the relevant technical system is not mature. It leads to various problems in the operation of CNG master station. In the specific operation process, some operators’ awareness of energy conservation and consumption reduction is not strong, the management system is not implemented in place, the design is unreasonable, and there are errors in equipment operation, which will cause the energy loss of CNG master station to a certain extent. In order to minimize the energy loss of CNG master station, we should analyze from multiple angles, find out the causes of energy loss, formulate targeted solutions, effectively improve the operation efficiency of CNG master station and control its energy loss. Based on this, this paper gives a detailed overview of the relevant contents of energy saving and consumption reduction of CNG parent station.
文摘This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both theoretical and practical interest.
基金supported by 973 ProgramSpecial Item(2010CB428805-1)the National Natural Science Foundation Project(41102138)
文摘Ground fissure hazards frequently emerge in Hebei Plain, which damage roads, dams, buildings and farmland. The paper reviews and analyses current state of knowledge and research into ground fissure and geological environment in Hebei Plain. It is shown that the level of research and investigation is in some aspects insufficient. Knowledge is lacking in the use of corresponding geological concept models for specific ground fissures, three-dimensional numerical simulations of ground fissures caused by pumping through soil with pre-existing fractures, numerical simulations of ground fissures caused by dislocation in intersection faults, and the failure criterion and the constitutive relationship of rock and soil. Furthermore, we put forward geological concept models for ground fissure formation following the dislocation of a buried intersection fault, over-exploitation of groundwater and its compound origin mechanisms in order to provide scientific evidence for the quantitative analysis.
基金Supported by the Research on the Archival Examination Strategy of changes in Listed Drugs Based on Risk under the Guidance of Holders'Principal Responsibility(2023TDZ01)。
文摘Based on the deepening awareness of the risk of changing packaging materials of injections,the national regulatory authorities and the China National Pharmaceutical Packaging Association have issued the relevant guidelines and group standards for changing packaging materials in recent years,greatly improving the research and development and technical requirements of packaging materials of injections.In 2021,Guangdong Province carried out the archival examination of the change of listed drugs,among which the proportion of the acceptance of changed injection packaging materials has increased year by year.On the basis of sorting out the archival examination work and combining with the cases of changing packaging materials of chemical injections accepted by Guangdong Province during 2021-2022,the requirements and problems of archival examination were analyzed and discussed to provide a reference and idea for applicants when studying the change in packaging materials.
