Located at 30 Lucheng Road, Wenzhou, the Wenzhou Economic and Technical Development Corporation(WETDC) was founded in September 1985. It was granted of self-operational rights for imports and exports by the former Min...Located at 30 Lucheng Road, Wenzhou, the Wenzhou Economic and Technical Development Corporation(WETDC) was founded in September 1985. It was granted of self-operational rights for imports and exports by the former Ministry of Foreign Economic Relations and Trade in November 1992. The corporation is a special composite foreign trade company, integrating展开更多
The Langfang Economic and Technical Development Zone is situated at the entry/exit of the Beijing-Tianjin-Tangshan Expressway, with a designed area of 14 sq km. The first-stage construction in the zone will cover an a...The Langfang Economic and Technical Development Zone is situated at the entry/exit of the Beijing-Tianjin-Tangshan Expressway, with a designed area of 14 sq km. The first-stage construction in the zone will cover an area of 2.2 sq kms. The zone is 40 kms away from Beijing, 60 km from Tianjin, 105 kms from Tianjin New Harbour, and only six kms from Langfang Railway Station. Telecommmunications facilities in the zone are connected with a 10, 000-line programme-controlled telephone switchboard imported by the city from Canada, 500-line long-distance automatic telephone equipment, and展开更多
Located in the southeast of AnhuiProvince, beside the Yangtze River, and atthe west verge of the Yangtze Delta, Wuhu isan open riverside city approved by the state,and a port opening to foreign ships,performing a link...Located in the southeast of AnhuiProvince, beside the Yangtze River, and atthe west verge of the Yangtze Delta, Wuhu isan open riverside city approved by the state,and a port opening to foreign ships,performing a link function in the generalstrategy of the Yangtze River, with Shanghaias the head and three gorges as the pillar. The Wuhu Economic and TechnicalDevelopment Zone, approved by the StateCouncil is the key point to developingWanjiang and responding Pudong. With aplanned area of 10 sq km, the zone is close展开更多
This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring ...This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring and WDM Multiservice Platform.Based on the analysis of these solutions,it is concluded that the above technologies should be used together and different technologies should be employed under different circumstances to make an integrated solution for MAN,while SDH multiservice will play a center role in the near future.展开更多
With the continuous development of social economy and the continuous improvement of people's quality of life, the demand for oil is increasing. There are many places where oil is used in people's lives, such a...With the continuous development of social economy and the continuous improvement of people's quality of life, the demand for oil is increasing. There are many places where oil is used in people's lives, such as cars and other means of transportation. Oil not only plays an important role in people's way of life and travel, but also plays an important role in many other aspects. Therefore, in order to ensure that people's daily life can be carried out in a normal and orderly way, it is necessary to develop the oilfield geology. Only in this way can more oil be mined to ensure people's daily needs. However, in the actual process of oil exploitation, it is difficult to guarantee people's demand simply by manpower. Therefore, in the process of exploiting the oilfield geology, the corresponding development technology should be used to exploit the oilfield, which will effectively improve the efficiency of oilfield exploitation. However, at present, there are still many problems in using oilfield geological development technology, such as the difficulty of exploitation, the benefit of exploitation, the equipment used in oil exploitation, and so on, which will affect the use of oilfield address development technology. Therefore, in order to exploit the oilfield geology smoothly, it is necessary for the relevant enterprises and managers to conduct a comprehensive investigation and understanding of the oilfield geology before exploiting the oil, and to find professional exploiters to design corresponding and perfect countermeasures for the exploitation of the oilfield geology. This can not only ensure the smooth geological exploitation process of the oilfield, but also ensure the economic benefits of related oilfield enterprises. Therefore, the following content is to analyze and study the technical characteristics and development countermeasures of oilfield geological development.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.Submission of Papers All papers will be submitted on line.http://www.cjche.com.cn Conditions of Publication It is a condition of publication that manuscripts submitted to CJChE have not been published and will not be submitted or published elsewhere in English or any other language,without the written consent of the publisher.All manuscripts are reviewed by referees and the decision to accept them for publication is made by the editors.Authors are solely responsible for the accuracy and suitability of their contributions.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.Submission of Papers All papers will be submitted on line.http://www.cjche.com.cn Conditions of Publication It is a condition of publication that manuscripts submitted to CJChE have not been published and will not be submitted or published elsewhere in English or any other language,without the written consent of the publisher.All manuscripts are reviewed by referees and the decision to accept them for publication is made by the editors.Authors are solely responsible for the accuracy and suitability of their contributions.展开更多
In recent years,great progress has been made in geologic evaluation,engineering test and development optimization of the Lower Cambrian Wufeng FmeLower Silurian Longmaxi Fm shale gas in the Sichuan Basin,and the main ...In recent years,great progress has been made in geologic evaluation,engineering test and development optimization of the Lower Cambrian Wufeng FmeLower Silurian Longmaxi Fm shale gas in the Sichuan Basin,and the main shale gas exploitation technologies have been un-derstood preliminarily.In addition,scale productivity construction has been completed in Jiaoshiba,Changning and Weiyuan blocks.In this paper,the Wufeng FmeLongmaxi Fm shale gas wells in Changning Block were taken as the study object to provide technical reference for the development design of similar shale-gas horizontal wells.The technology combining geology with engineering,dynamic with static,and statistical analysis with simulation prediction was applied to quantify the main factors controlling shale-gas well productivity,develop the shale-gas well production prediction model,and optimize the key technical parameters of geologic target of shale-gas horizontal wells in the block(e.g.roadway orientation,location and spacing,horizontal section length and gas well production index).In order to realize high productivity of shale gas wells,it is necessary to maximize the included angle between the horizontal section orientation and the maximum major stress and fracture development direction,deploy horizontal-well roadway in top-quality shale layers,and drill the horizontal section in type I reservoirs over 1000 m long.It is concluded that high productivity of shale gas wells is guaranteed by the horizontal-well wellbore integrity and the optimized low-viscosity slickwater and ceramsite fracturing technology for complex fracture creation.Based on the research results,the technical policies for shale gas development of Changning Block are prepared and a guidance and reference are provided for the shale gas development and productivity construction in the block and the development design of similar shale-gas horizontal wells.展开更多
Through over 40 years’ endeavors, China auto industry has grown up into a new comprehensive industry with its products covering all kinds of vehicles including heavy, medium and light vehicles, mini -vans, cars, as w...Through over 40 years’ endeavors, China auto industry has grown up into a new comprehensive industry with its products covering all kinds of vehicles including heavy, medium and light vehicles, mini -vans, cars, as well as motorcycles. In 1995, about 1.5 million auto vehicles and 7.83 million motorcycles were展开更多
On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise ...On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise students' awareness of local sustainable development challenges while embracing the latest digital trends, with the goal of developing technically and commercially viable solutions to address social issues. A total of 12 teams from around the world participated, with the Ethiopian team winning the gold award with an AI-powered livestock health platform for early disease detection and better veterinary care.展开更多
The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop t...The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.展开更多
文摘Located at 30 Lucheng Road, Wenzhou, the Wenzhou Economic and Technical Development Corporation(WETDC) was founded in September 1985. It was granted of self-operational rights for imports and exports by the former Ministry of Foreign Economic Relations and Trade in November 1992. The corporation is a special composite foreign trade company, integrating
文摘The Langfang Economic and Technical Development Zone is situated at the entry/exit of the Beijing-Tianjin-Tangshan Expressway, with a designed area of 14 sq km. The first-stage construction in the zone will cover an area of 2.2 sq kms. The zone is 40 kms away from Beijing, 60 km from Tianjin, 105 kms from Tianjin New Harbour, and only six kms from Langfang Railway Station. Telecommmunications facilities in the zone are connected with a 10, 000-line programme-controlled telephone switchboard imported by the city from Canada, 500-line long-distance automatic telephone equipment, and
文摘Located in the southeast of AnhuiProvince, beside the Yangtze River, and atthe west verge of the Yangtze Delta, Wuhu isan open riverside city approved by the state,and a port opening to foreign ships,performing a link function in the generalstrategy of the Yangtze River, with Shanghaias the head and three gorges as the pillar. The Wuhu Economic and TechnicalDevelopment Zone, approved by the StateCouncil is the key point to developingWanjiang and responding Pudong. With aplanned area of 10 sq km, the zone is close
文摘This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring and WDM Multiservice Platform.Based on the analysis of these solutions,it is concluded that the above technologies should be used together and different technologies should be employed under different circumstances to make an integrated solution for MAN,while SDH multiservice will play a center role in the near future.
文摘With the continuous development of social economy and the continuous improvement of people's quality of life, the demand for oil is increasing. There are many places where oil is used in people's lives, such as cars and other means of transportation. Oil not only plays an important role in people's way of life and travel, but also plays an important role in many other aspects. Therefore, in order to ensure that people's daily life can be carried out in a normal and orderly way, it is necessary to develop the oilfield geology. Only in this way can more oil be mined to ensure people's daily needs. However, in the actual process of oil exploitation, it is difficult to guarantee people's demand simply by manpower. Therefore, in the process of exploiting the oilfield geology, the corresponding development technology should be used to exploit the oilfield, which will effectively improve the efficiency of oilfield exploitation. However, at present, there are still many problems in using oilfield geological development technology, such as the difficulty of exploitation, the benefit of exploitation, the equipment used in oil exploitation, and so on, which will affect the use of oilfield address development technology. Therefore, in order to exploit the oilfield geology smoothly, it is necessary for the relevant enterprises and managers to conduct a comprehensive investigation and understanding of the oilfield geology before exploiting the oil, and to find professional exploiters to design corresponding and perfect countermeasures for the exploitation of the oilfield geology. This can not only ensure the smooth geological exploitation process of the oilfield, but also ensure the economic benefits of related oilfield enterprises. Therefore, the following content is to analyze and study the technical characteristics and development countermeasures of oilfield geological development.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.Submission of Papers All papers will be submitted on line.http://www.cjche.com.cn Conditions of Publication It is a condition of publication that manuscripts submitted to CJChE have not been published and will not be submitted or published elsewhere in English or any other language,without the written consent of the publisher.All manuscripts are reviewed by referees and the decision to accept them for publication is made by the editors.Authors are solely responsible for the accuracy and suitability of their contributions.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.Submission of Papers All papers will be submitted on line.http://www.cjche.com.cn Conditions of Publication It is a condition of publication that manuscripts submitted to CJChE have not been published and will not be submitted or published elsewhere in English or any other language,without the written consent of the publisher.All manuscripts are reviewed by referees and the decision to accept them for publication is made by the editors.Authors are solely responsible for the accuracy and suitability of their contributions.
文摘In recent years,great progress has been made in geologic evaluation,engineering test and development optimization of the Lower Cambrian Wufeng FmeLower Silurian Longmaxi Fm shale gas in the Sichuan Basin,and the main shale gas exploitation technologies have been un-derstood preliminarily.In addition,scale productivity construction has been completed in Jiaoshiba,Changning and Weiyuan blocks.In this paper,the Wufeng FmeLongmaxi Fm shale gas wells in Changning Block were taken as the study object to provide technical reference for the development design of similar shale-gas horizontal wells.The technology combining geology with engineering,dynamic with static,and statistical analysis with simulation prediction was applied to quantify the main factors controlling shale-gas well productivity,develop the shale-gas well production prediction model,and optimize the key technical parameters of geologic target of shale-gas horizontal wells in the block(e.g.roadway orientation,location and spacing,horizontal section length and gas well production index).In order to realize high productivity of shale gas wells,it is necessary to maximize the included angle between the horizontal section orientation and the maximum major stress and fracture development direction,deploy horizontal-well roadway in top-quality shale layers,and drill the horizontal section in type I reservoirs over 1000 m long.It is concluded that high productivity of shale gas wells is guaranteed by the horizontal-well wellbore integrity and the optimized low-viscosity slickwater and ceramsite fracturing technology for complex fracture creation.Based on the research results,the technical policies for shale gas development of Changning Block are prepared and a guidance and reference are provided for the shale gas development and productivity construction in the block and the development design of similar shale-gas horizontal wells.
文摘Through over 40 years’ endeavors, China auto industry has grown up into a new comprehensive industry with its products covering all kinds of vehicles including heavy, medium and light vehicles, mini -vans, cars, as well as motorcycles. In 1995, about 1.5 million auto vehicles and 7.83 million motorcycles were
文摘On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise students' awareness of local sustainable development challenges while embracing the latest digital trends, with the goal of developing technically and commercially viable solutions to address social issues. A total of 12 teams from around the world participated, with the Ethiopian team winning the gold award with an AI-powered livestock health platform for early disease detection and better veterinary care.
文摘The Chinese Journal of Chemical Engineering is the official journal of The Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co.,Ltd.The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering.
