In order to determine the design tide levels in the areas without measured tide level data, especially in the areas where it is difficult to measure tidal levels, a calculation method based on a numerical model of tid...In order to determine the design tide levels in the areas without measured tide level data, especially in the areas where it is difficult to measure tidal levels, a calculation method based on a numerical model of tidal current is proposed. The essentials of the method are described, and its application is illustrated with an example. The results of the application show that the design tide levels calculated by the method are close to those determined by long-time measured tide level data, and its calculation precision is high, so it is feasible to use the method to determine the design tide levels in the areas.展开更多
This paper analyzes the seismicity in Bohai Sea,introducing a shape factor K to characterize the seismic risk distribution in sub-regions of the sea.Based on the seismic design ground motions for 46 platforms located ...This paper analyzes the seismicity in Bohai Sea,introducing a shape factor K to characterize the seismic risk distribution in sub-regions of the sea.Based on the seismic design ground motions for 46 platforms located in the Bohai Sea,a statistical analysis was performed for different peak ground acceleration(PGA)ratios at two different probability levels.In accordance with the two-stage design method,a scheme of two seismic design levels is proposed,and two seismic design objectives are established respectively for the strength level earthquake and the ductility level earthquake.By analogy with and comparison to the Chinese seismic design code for buildings,it is proposed that the probability level for the strength level earthquake and ductility level earthquake have a return period of 200 and 1000-2500 years,respectively.The validity of these proposed values is discussed.Finally,the PGAs corresponding to these two probability levels are calculated for different sub-regions of the Bohai Sea.展开更多
The return level of the joint distribution of flood levels and flood peak discharges was analyzed by Archimedean Gumbel-Hougaard copula and Kendall distribution functions.Using the annual maximum level(H)and discharge...The return level of the joint distribution of flood levels and flood peak discharges was analyzed by Archimedean Gumbel-Hougaard copula and Kendall distribution functions.Using the annual maximum level(H)and discharge(Q)of flood peak at Boluo Hydrologic Station in the Dongjiang River in last 56 years,the"OR"return period,"AND"return period and Kendall return period of their joint distribution and the most likely design flood value were calculated.The main conclusions of this study can be summarized as follows:the Kendall return period can more accurately reflect the risk rate of the combination of flood elements,relative to"OR"return period and"AND"return period.The design value of univariate flood element based on the current specification can meet the design standard.While the design value calculated according to"OR"return period was on the high side,and the design value calculated by the"AND"return period was on low side.Based on the principle of maximum probability,the calculated design value of Kendall return period under the different combinations of flood peak discharge and water level can provide new options for flood control project safety and risk management.展开更多
Artificial intelligence(AI),as a strategic technology leading the new round of technological revolution and industrial transformation,has profoundly changed the way humans produce and live.The Communist Party of China...Artificial intelligence(AI),as a strategic technology leading the new round of technological revolution and industrial transformation,has profoundly changed the way humans produce and live.The Communist Party of China(CPC)and the Chinese government attach great importance to AI development and have improved top-level design and strengthened implementation efforts in recent years,driving a holistic and systematic advancement of China’s comprehensive AI strength.In contrast,many other Global South countries,due to limitations in technology,capital,and material resources,lag far behind developed countries in AI development,further widening the global intelligence divide.On April 25,2025,the Political Bureau of the CPC Central Committee held its 20th collective study session on strengthening the development and regulation of AI.展开更多
The five-year plan both embodies visionary top-level design and stays grounded in the needs of people's livelihood.WHY has China been able to achieve development miracles one after another amid the twists and turn...The five-year plan both embodies visionary top-level design and stays grounded in the needs of people's livelihood.WHY has China been able to achieve development miracles one after another amid the twists and turns of globalization,and how does China realize its national goals with optimum efficiency?The answers lie in the country’s unique goal-oriented governance system,which is best epitomized by its five-year plans.展开更多
The design lowest navigable water level is a primary index to the channel grade division.But differ- ent method can get different calculated result,and that even brings contradiction to decide the navigation grade.In ...The design lowest navigable water level is a primary index to the channel grade division.But differ- ent method can get different calculated result,and that even brings contradiction to decide the navigation grade.In this paper the differences between guaranteed rate method and guaranteed rate-frequency method on the fundamental concept of guaranteed rate and the calculated result are carried out.According to the theoreti- cal expression forms of the two methods,the reason leading to the difference is an...展开更多
Optimization of a manufacturing process results in higher productivity and reduced wastes. Production parameters of a local steel bar manufacturing industry of Pakistan is optimized by using six Sigma-Define, measure,...Optimization of a manufacturing process results in higher productivity and reduced wastes. Production parameters of a local steel bar manufacturing industry of Pakistan is optimized by using six Sigma-Define, measure, analyze, improve, and controlmethodology. Production data is collected and analyzed. After analysis, experimental design result is used to identify significant factors affecting process performance. The significant factors are controlled to optimized level using two-level factorial design method. A regression model is developed that helps in the estimation of response under multi variable input values. Model is tested, verified, and validated by using industrial data collected at a local steel bar manufacturing industry of Peshawar（Khyber Pakhtunkhwa, Pakistan）. The sigma level of the manufacturing process is improved to 4.01 from 3.58. The novelty of the research is the identification of the significant factors along with the optimum levels that affects the process yield, and the methodology to optimize the steel bar manufacturing process.展开更多
The 13th Five-Year Plan and the government work report have repeatedly referred to the ＂Intemet＋ government services＂ to achieve data sharing, public interaction, government and enterprise win-win, political and so...The 13th Five-Year Plan and the government work report have repeatedly referred to the ＂Intemet＋ government services＂ to achieve data sharing, public interaction, government and enterprise win-win, political and social, and this is precisely the concept of good governance Together However, the Intemet＋ government services is not the 2.0 version of e-government, but the new interactive experience, is no longer the original government unilateral government information disclosure and online services, but the government, society, business tripartite link Require the Government to do the top design at the same time, but also to change the concept, put down the shelves to the enterprise to leam, with the cooperation, while the policy, service and implementation of the real arrival of the community and citizens.展开更多
In April 2015,the Political Bureau of the CPC Central Committee adopted the“Outline of the Plan for the Coordinated Development of Beijing,Tianjin,and Hebei.”In July 2017,the“Plan for the Integrated Development of ...In April 2015,the Political Bureau of the CPC Central Committee adopted the“Outline of the Plan for the Coordinated Development of Beijing,Tianjin,and Hebei.”In July 2017,the“Plan for the Integrated Development of Beijing,Tianjin,and Hebei Talents(2017–2030),”jointly prepared by the leading groups of the three regions,was officially released.The core of the coordinated development of these three regions is the orderly removal of non-capital functions from Beijing.Talents,especially medical talents,are integral to this transition.The construction of a medical talent community across these three regions promotes the further development of a healthier China,meets the growing needs of the people for a better life,and embodies the concept of putting people first.This paper begins by examining the current situation of the construction of the Beijing-Tianjin-Hebei medical talent community,reviewing the progress made,analyzing existing problems,and proposing targeted countermeasures and suggestions.展开更多
ⅠKeeping step with the economic re-structuring and the policy of opening tothe outside world,marked progress hasbeen made in China’s urban constructionand great strides have been taken in cityplanning during the ten...ⅠKeeping step with the economic re-structuring and the policy of opening tothe outside world,marked progress hasbeen made in China’s urban constructionand great strides have been taken in cityplanning during the ten years and more re-cently.This is manifested in the following5 respects.A.Thanks to the展开更多
基金The National Key Fundamental Research and Development Program ("973" Program) of China under contract No. 2010CB429001
文摘In order to determine the design tide levels in the areas without measured tide level data, especially in the areas where it is difficult to measure tidal levels, a calculation method based on a numerical model of tidal current is proposed. The essentials of the method are described, and its application is illustrated with an example. The results of the application show that the design tide levels calculated by the method are close to those determined by long-time measured tide level data, and its calculation precision is high, so it is feasible to use the method to determine the design tide levels in the areas.
基金the 2007 Special Research Project 8-55 of the Department of Finance and the State Science and Technology Support Project 2006BAC13B02
文摘This paper analyzes the seismicity in Bohai Sea,introducing a shape factor K to characterize the seismic risk distribution in sub-regions of the sea.Based on the seismic design ground motions for 46 platforms located in the Bohai Sea,a statistical analysis was performed for different peak ground acceleration(PGA)ratios at two different probability levels.In accordance with the two-stage design method,a scheme of two seismic design levels is proposed,and two seismic design objectives are established respectively for the strength level earthquake and the ductility level earthquake.By analogy with and comparison to the Chinese seismic design code for buildings,it is proposed that the probability level for the strength level earthquake and ductility level earthquake have a return period of 200 and 1000-2500 years,respectively.The validity of these proposed values is discussed.Finally,the PGAs corresponding to these two probability levels are calculated for different sub-regions of the Bohai Sea.
基金Supported by the National Natural Science Foundation of China(41371498)Young Talents Innovation Project of Guangdong Education Department(6020210026K)+1 种基金Postdoctoral Funding Program(6020271006K)Innovation Project of Shenzhen Polychenic in 2019(cxgc2019c0005).
文摘The return level of the joint distribution of flood levels and flood peak discharges was analyzed by Archimedean Gumbel-Hougaard copula and Kendall distribution functions.Using the annual maximum level(H)and discharge(Q)of flood peak at Boluo Hydrologic Station in the Dongjiang River in last 56 years,the"OR"return period,"AND"return period and Kendall return period of their joint distribution and the most likely design flood value were calculated.The main conclusions of this study can be summarized as follows:the Kendall return period can more accurately reflect the risk rate of the combination of flood elements,relative to"OR"return period and"AND"return period.The design value of univariate flood element based on the current specification can meet the design standard.While the design value calculated according to"OR"return period was on the high side,and the design value calculated by the"AND"return period was on low side.Based on the principle of maximum probability,the calculated design value of Kendall return period under the different combinations of flood peak discharge and water level can provide new options for flood control project safety and risk management.
文摘Artificial intelligence(AI),as a strategic technology leading the new round of technological revolution and industrial transformation,has profoundly changed the way humans produce and live.The Communist Party of China(CPC)and the Chinese government attach great importance to AI development and have improved top-level design and strengthened implementation efforts in recent years,driving a holistic and systematic advancement of China’s comprehensive AI strength.In contrast,many other Global South countries,due to limitations in technology,capital,and material resources,lag far behind developed countries in AI development,further widening the global intelligence divide.On April 25,2025,the Political Bureau of the CPC Central Committee held its 20th collective study session on strengthening the development and regulation of AI.
文摘The five-year plan both embodies visionary top-level design and stays grounded in the needs of people's livelihood.WHY has China been able to achieve development miracles one after another amid the twists and turns of globalization,and how does China realize its national goals with optimum efficiency?The answers lie in the country’s unique goal-oriented governance system,which is best epitomized by its five-year plans.
基金Supported by the National Key Basic Resarch and Development Plan (Grant 2003CB415200)
文摘The design lowest navigable water level is a primary index to the channel grade division.But differ- ent method can get different calculated result,and that even brings contradiction to decide the navigation grade.In this paper the differences between guaranteed rate method and guaranteed rate-frequency method on the fundamental concept of guaranteed rate and the calculated result are carried out.According to the theoreti- cal expression forms of the two methods,the reason leading to the difference is an...
文摘Optimization of a manufacturing process results in higher productivity and reduced wastes. Production parameters of a local steel bar manufacturing industry of Pakistan is optimized by using six Sigma-Define, measure, analyze, improve, and controlmethodology. Production data is collected and analyzed. After analysis, experimental design result is used to identify significant factors affecting process performance. The significant factors are controlled to optimized level using two-level factorial design method. A regression model is developed that helps in the estimation of response under multi variable input values. Model is tested, verified, and validated by using industrial data collected at a local steel bar manufacturing industry of Peshawar（Khyber Pakhtunkhwa, Pakistan）. The sigma level of the manufacturing process is improved to 4.01 from 3.58. The novelty of the research is the identification of the significant factors along with the optimum levels that affects the process yield, and the methodology to optimize the steel bar manufacturing process.
文摘The 13th Five-Year Plan and the government work report have repeatedly referred to the ＂Intemet＋ government services＂ to achieve data sharing, public interaction, government and enterprise win-win, political and social, and this is precisely the concept of good governance Together However, the Intemet＋ government services is not the 2.0 version of e-government, but the new interactive experience, is no longer the original government unilateral government information disclosure and online services, but the government, society, business tripartite link Require the Government to do the top design at the same time, but also to change the concept, put down the shelves to the enterprise to leam, with the cooperation, while the policy, service and implementation of the real arrival of the community and citizens.
文摘In April 2015,the Political Bureau of the CPC Central Committee adopted the“Outline of the Plan for the Coordinated Development of Beijing,Tianjin,and Hebei.”In July 2017,the“Plan for the Integrated Development of Beijing,Tianjin,and Hebei Talents(2017–2030),”jointly prepared by the leading groups of the three regions,was officially released.The core of the coordinated development of these three regions is the orderly removal of non-capital functions from Beijing.Talents,especially medical talents,are integral to this transition.The construction of a medical talent community across these three regions promotes the further development of a healthier China,meets the growing needs of the people for a better life,and embodies the concept of putting people first.This paper begins by examining the current situation of the construction of the Beijing-Tianjin-Hebei medical talent community,reviewing the progress made,analyzing existing problems,and proposing targeted countermeasures and suggestions.
文摘ⅠKeeping step with the economic re-structuring and the policy of opening tothe outside world,marked progress hasbeen made in China’s urban constructionand great strides have been taken in cityplanning during the ten years and more re-cently.This is manifested in the following5 respects.A.Thanks to the
