The ecological environment promotes the construction of smart grids, while the smart substation is the key to the construction of smart grids. Based on the supervision of the Zigui 220 KV smart substation project in t...The ecological environment promotes the construction of smart grids, while the smart substation is the key to the construction of smart grids. Based on the supervision of the Zigui 220 KV smart substation project in the Three Gorges Reservoir Region of China, this paper studies how to well create the supervision for the smart substation project construction. With the research focus of “four-control, two-management and one-coordination” in the supervision and according to the problems and experience in the project construction, some reasonable suggestions are put forward, and then the accumulated methods and experience by supervisors when they are engaged in the supervision for the smart substation project construction are summarized.展开更多
Since the start of the construction project supervision system pilot, construction project supervision has played a huge role in construction projects;at the same time, the role of the supervision unit cannot be separ...Since the start of the construction project supervision system pilot, construction project supervision has played a huge role in construction projects;at the same time, the role of the supervision unit cannot be separated from the effective management of the construction unit. Engineering supervision is a kind of paid engineering consulting service, and the management of supervision costs is an important subject for construction units to strengthen the management of supervision units. Based on practical data and management experience, the article analyzes and studies the supervision cost management, aiming to improve the management level of the construction unit to the supervision unit.展开更多
With the entrance into WTO, the Chinese supervision enterprises face the serious challenge never existed before. Comparing with other type enterprises Chinese supervision enterprises nature of China are the same as pr...With the entrance into WTO, the Chinese supervision enterprises face the serious challenge never existed before. Comparing with other type enterprises Chinese supervision enterprises nature of China are the same as project management companies in connotation and service scope in nature. They have much superiority in development of the project management work. Through comparing and analyzing the special feature between Chinese supervision enterprise and international project management enterprise, this paper points out the gap between them, and table the proposal of they transforming to the project management enterprises.展开更多
At present, our country is developing market economy rapidly, but the economic development cannot be separated from highway construction which is an important component, and highway supervision project also plays a pi...At present, our country is developing market economy rapidly, but the economic development cannot be separated from highway construction which is an important component, and highway supervision project also plays a pivotal role. As China is expanding the scale of highway projects, more and more investment costs are needed for highway projects. The construction site management is very important for highway construction. Only by doing a good job in project supervision can the project quality be further improved. Before the supervision unit supervises the project, it is necessary to establish a sound supervision system and comprehensively carry out the construction site management, so as to avoid construction conflicts. Based on this, this paper focuses on how to do a good job in the construction site management of highway supervision projects in order to contribute a little bit to the construction of highway projects in China.展开更多
At present, the continuous progress and development of society has led to the improvement of the overall level of the construction industry. More and more new processes and technologies are introduced in the construct...At present, the continuous progress and development of society has led to the improvement of the overall level of the construction industry. More and more new processes and technologies are introduced in the construction of construction projects, which also increases the difficulty of construction. In order to ensure the high-quality completion of construction engineering, it is necessary to study the methods of construction engineering supervision and construction technology innovation, give full play to the role of construction engineering supervision, and focus on the construction technology innovation, so as to realize the smooth completion of construction engineering project. Next, the article discusses the construction engineering supervision and construction technology innovation methods.展开更多
In soft sensor field, just-in-time learning(JITL) is an effective approach to model nonlinear and time varying processes. However, most similarity criterions in JITL are computed in the input space only while ignoring...In soft sensor field, just-in-time learning(JITL) is an effective approach to model nonlinear and time varying processes. However, most similarity criterions in JITL are computed in the input space only while ignoring important output information, which may lead to inaccurate construction of relevant sample set. To solve this problem, we propose a novel supervised feature extraction method suitable for the regression problem called supervised local and non-local structure preserving projections(SLNSPP), in which both input and output information can be easily and effectively incorporated through a newly defined similarity index. The SLNSPP can not only retain the virtue of locality preserving projections but also prevent faraway points from nearing after projection,which endues SLNSPP with powerful discriminating ability. Such two good properties of SLNSPP are desirable for JITL as they are expected to enhance the accuracy of similar sample selection. Consequently, we present a SLNSPP-JITL framework for developing adaptive soft sensor, including a sparse learning strategy to limit the scale and update the frequency of database. Finally, two case studies are conducted with benchmark datasets to evaluate the performance of the proposed schemes. The results demonstrate the effectiveness of LNSPP and SLNSPP.展开更多
Data-driven process monitoring methods are widely used in industrial tasks,with visual monitoring enabling operators to intuitively understand operational status,which is vital for maximizing industrial safety and pro...Data-driven process monitoring methods are widely used in industrial tasks,with visual monitoring enabling operators to intuitively understand operational status,which is vital for maximizing industrial safety and production efficiency.However,high-dimensional industrial data often exhibit complex structures,making the traditional 2D visualization methods ineffective at distinguishing different fault types.Thus,a visual process monitoring method that combines supervised uniform manifold approximation and projection with a label assignment strategy is proposed herein.First,the proposed supervised projection method enhances the visualization step by incorporating label information to guide the nonlinear dimensionality reduction process,improving the degrees of class separation and intraclass compactness.Then,to address the lack of label information for online samples,a label assignment strategy is designed.This strategy integrates kernel Fisher discriminant analysis and Bayesian inference,assigning different label types to online samples based on their confidence levels.Finally,upon integrating the label assignment strategy with the proposed supervised projection method,the assigned labels enhance the separability of online projections and enable the visualization of unknown data to some extent.The proposed method is validated on the Tennessee Eastman process and a real continuous catalytic reforming process,demonstrating superior visual fault monitoring and diagnosis performance to that of the state-of-the-art methods,especially in real industrial applications.展开更多
Modern international project management has entered the phase of precise and accurate project management after the global financial crisis broke out at the beginning of the 21 stcentury. However, its development has f...Modern international project management has entered the phase of precise and accurate project management after the global financial crisis broke out at the beginning of the 21 stcentury. However, its development has faced new challenges since there has been lack of explicitly unanimous definition for the capability dimensions of precise and accurate project management, as well as the models and their process control parameters. The required core capabilities based on the precise and accurate project management for various rings are involved in the project life cycle, namely, the required internationally core competences and their components for the phases of project strategic planning and decision making in the early project phase, as well as the value engineering, and the project supervision and controls during the execution phase.Through studying the effects of the internationally core competences based on precise and accurate project management capabilities for the success and excellence of projects and configuring such models, the goal is to help the main contractors continuously obtain project success and excellence, thus improve its internationally core competences with continuous project success and excellence.展开更多
文摘The ecological environment promotes the construction of smart grids, while the smart substation is the key to the construction of smart grids. Based on the supervision of the Zigui 220 KV smart substation project in the Three Gorges Reservoir Region of China, this paper studies how to well create the supervision for the smart substation project construction. With the research focus of “four-control, two-management and one-coordination” in the supervision and according to the problems and experience in the project construction, some reasonable suggestions are put forward, and then the accumulated methods and experience by supervisors when they are engaged in the supervision for the smart substation project construction are summarized.
文摘Since the start of the construction project supervision system pilot, construction project supervision has played a huge role in construction projects;at the same time, the role of the supervision unit cannot be separated from the effective management of the construction unit. Engineering supervision is a kind of paid engineering consulting service, and the management of supervision costs is an important subject for construction units to strengthen the management of supervision units. Based on practical data and management experience, the article analyzes and studies the supervision cost management, aiming to improve the management level of the construction unit to the supervision unit.
文摘With the entrance into WTO, the Chinese supervision enterprises face the serious challenge never existed before. Comparing with other type enterprises Chinese supervision enterprises nature of China are the same as project management companies in connotation and service scope in nature. They have much superiority in development of the project management work. Through comparing and analyzing the special feature between Chinese supervision enterprise and international project management enterprise, this paper points out the gap between them, and table the proposal of they transforming to the project management enterprises.
文摘At present, our country is developing market economy rapidly, but the economic development cannot be separated from highway construction which is an important component, and highway supervision project also plays a pivotal role. As China is expanding the scale of highway projects, more and more investment costs are needed for highway projects. The construction site management is very important for highway construction. Only by doing a good job in project supervision can the project quality be further improved. Before the supervision unit supervises the project, it is necessary to establish a sound supervision system and comprehensively carry out the construction site management, so as to avoid construction conflicts. Based on this, this paper focuses on how to do a good job in the construction site management of highway supervision projects in order to contribute a little bit to the construction of highway projects in China.
文摘At present, the continuous progress and development of society has led to the improvement of the overall level of the construction industry. More and more new processes and technologies are introduced in the construction of construction projects, which also increases the difficulty of construction. In order to ensure the high-quality completion of construction engineering, it is necessary to study the methods of construction engineering supervision and construction technology innovation, give full play to the role of construction engineering supervision, and focus on the construction technology innovation, so as to realize the smooth completion of construction engineering project. Next, the article discusses the construction engineering supervision and construction technology innovation methods.
基金Supported by the National Natural Science Foundation of China(61273160)the Fundamental Research Funds for the Central Universities(14CX06067A,13CX05021A)
文摘In soft sensor field, just-in-time learning(JITL) is an effective approach to model nonlinear and time varying processes. However, most similarity criterions in JITL are computed in the input space only while ignoring important output information, which may lead to inaccurate construction of relevant sample set. To solve this problem, we propose a novel supervised feature extraction method suitable for the regression problem called supervised local and non-local structure preserving projections(SLNSPP), in which both input and output information can be easily and effectively incorporated through a newly defined similarity index. The SLNSPP can not only retain the virtue of locality preserving projections but also prevent faraway points from nearing after projection,which endues SLNSPP with powerful discriminating ability. Such two good properties of SLNSPP are desirable for JITL as they are expected to enhance the accuracy of similar sample selection. Consequently, we present a SLNSPP-JITL framework for developing adaptive soft sensor, including a sparse learning strategy to limit the scale and update the frequency of database. Finally, two case studies are conducted with benchmark datasets to evaluate the performance of the proposed schemes. The results demonstrate the effectiveness of LNSPP and SLNSPP.
基金supported by the National Key Research and Development Program of China(2022YFB3304701)the National Natural Science Foundation of China(62173145,62322303,62303186)+2 种基金the Natural Science Foundation of Shanghai under Grant 24ZR1415900the Shanghai Pilot Program for Basic Research(22TQ1400100-16)the State Key Laboratory of Industrial Control Technology,China(Grant No.ICT2024A26).
文摘Data-driven process monitoring methods are widely used in industrial tasks,with visual monitoring enabling operators to intuitively understand operational status,which is vital for maximizing industrial safety and production efficiency.However,high-dimensional industrial data often exhibit complex structures,making the traditional 2D visualization methods ineffective at distinguishing different fault types.Thus,a visual process monitoring method that combines supervised uniform manifold approximation and projection with a label assignment strategy is proposed herein.First,the proposed supervised projection method enhances the visualization step by incorporating label information to guide the nonlinear dimensionality reduction process,improving the degrees of class separation and intraclass compactness.Then,to address the lack of label information for online samples,a label assignment strategy is designed.This strategy integrates kernel Fisher discriminant analysis and Bayesian inference,assigning different label types to online samples based on their confidence levels.Finally,upon integrating the label assignment strategy with the proposed supervised projection method,the assigned labels enhance the separability of online projections and enable the visualization of unknown data to some extent.The proposed method is validated on the Tennessee Eastman process and a real continuous catalytic reforming process,demonstrating superior visual fault monitoring and diagnosis performance to that of the state-of-the-art methods,especially in real industrial applications.
文摘Modern international project management has entered the phase of precise and accurate project management after the global financial crisis broke out at the beginning of the 21 stcentury. However, its development has faced new challenges since there has been lack of explicitly unanimous definition for the capability dimensions of precise and accurate project management, as well as the models and their process control parameters. The required core capabilities based on the precise and accurate project management for various rings are involved in the project life cycle, namely, the required internationally core competences and their components for the phases of project strategic planning and decision making in the early project phase, as well as the value engineering, and the project supervision and controls during the execution phase.Through studying the effects of the internationally core competences based on precise and accurate project management capabilities for the success and excellence of projects and configuring such models, the goal is to help the main contractors continuously obtain project success and excellence, thus improve its internationally core competences with continuous project success and excellence.
