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An exploratory study for predicting component reliability with new load conditions

Zhengwei HU, Xiaoping DU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 76-84 doi: 10.1007/s11465-018-0522-x

Abstract: Reliability is important to design innovation. A new product should be not only innovative, but also reliable. For many existing components used in the new product, their reliability will change because the applied Loads are different from the ones for which the components are originally designed and manufactured. Then the new reliability must be re-evaluated. The system designers of the new product, however, may not have enough information to perform this task. With a beam problem as a case study, this study explores a feasible way to re-evaluate the component reliability with new Loads given the following information: The original reliability of the component with respect to the component Loads and the distributions of the new component Loads. Physics-based methods are employed to build the equivalent component limit-state function that can predict the component failure under the new Loads. Since the information is limited, the re-evaluated component reliability is given by its maximum and minimum values. The case study shows that good accuracy can be obtained even though the new reliability is provided with the aforementioned interval.

Keywords： reliability     component     failure mode     prediction     random variable    

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Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 675-684 doi: 10.1007/s11684-022-0970-x

Abstract: When exploratory factor analysis was applied, the 15 indicators were divided into 6 core elements that

Keywords： critical care medicine     quality control     evaluation     exploratory factor analysis (EFA) model    

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Global shale gas development revelation and prospect of shale gas in China

Dong Dazhong,Wang Yuman,Li Denghua,Yang Hua,Li Xinjing,Wang Shufang

Strategic Study of CAE 2012, Volume 14, Issue 6,   Pages 69-76

Abstract:

A lot of outcrop geological survey works, basic research and pilot of exploration and development of shale gas were undertaken in China. Especially in the marine black shale of the South, more than 40 wells were drilled and more than 10 wells had got shale gas. The initial production of some wells has reached more than 1×104 m3/d. It was showed that the prospect of shale gas was better in China. Because of the obvious particularity in geologic settings, many geological and development problems have to be solved . With the breakthrough of the theories and key technologies in exploration and development of shale gas, improvement of economic conditions, and the support of national policy, the exploration prospect of shale gas is better in China.

Keywords： shale gas     resources prospect     exploratory practice     development prospect    

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Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 327-335 doi: 10.1007/s42524-019-0051-2

Abstract: The arrival of the high-speed rail (HSR) era has accelerated the pace of urban development, but its broad socioeconomic impact remains subject to intense debates. This research aims to propose a model for measuring the impact of HSR operation on HSR stations and the surrounding areas, which this research call the HSR-based nodal zone (HNZ). The proposed model is composed of two variables (i.e., transportation situation and vitality) and three subsystems (i.e., economic, societal, and environmental). Data were collected in China through questionnaire survey. Results indicate that the effects of HSR operation on HNZ are multidimensional, transportation vitality has an intermediary role in the effects, and the effects on the physical environment are negative. This study presents an early examination of the impact of HSR operation on the HSR stations and relevant areas and contributes new evidence to academic debates on the contribution of HSR to urban development. Accordingly, urban development policies should be built on the mechanism of HSR in driving the growth of HNZ.

Keywords： high-speed rail     nodal zone     interactive effects     sustainable urbanization     China    

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Exploration on Engineering Management Practice of China’s High Speed Railways

Yong-fu Sun

Frontiers of Engineering Management 2014, Volume 1, Issue 3,   Pages 232-240 doi: 10.15302/J-FEM-2014043

Abstract: In the perspective of the engineering management practice, the developers have studied and made prospective

Keywords： high speed railway     engineering management     practice     innovation    

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Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 13-17 doi: 10.15302/J-FEM-2014004

Abstract: As the coal-dominated energy structure will remain unchanged in the short term, the sustainable development of the coal industry is still serving as one of the foundations for the sound development of the national economy. The construction of modernized mines based on "four orientations", that is, orientations of scale production, modern technology and equipment, informationized management and professional working team, has been rapidly enhancing its development in the recent decade. However, in the next decade or an even longer period, the industry, with the energy centre shifting to the West of China, will be exposed to new options and development in the layout, structure, model, technology, etc.

Keywords： coal industry     sustainable development     the four-orientation model    

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Circumcision of preschool boys in Baghdad, Iraq: prevalence, current practice and complications

Hussein Naji, Rajaa Mustafa

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 122-125 doi: 10.1007/s11684-013-0242-x

Abstract:

Circumcision is probably one of the most ancient surgical operations and has been performed more than any other operation. The aim of this study is to assess the prevalence of circumcision in preschool boys and to present an overview of the current practices and complications in Baghdad, Iraq. A statistical survey was conducted at the Central Teaching Hospital for Children in Baghdad, Iraq during the period April 2003 to October 2004. The survey consisted of structured interviews with the accompanying parents while waiting for their children’s routine appointments. A total of 4000 boys were included. 2 443 (61%) were circumcised and the prevalence of circumcision increased from 18% at 6 months of age to reach 92% at 6 years. Only 180 (7.4%) boys had a medical reason while the rest were circumcised for religious reasons. Parents were the only determinant in deciding the time and place of religious circumcision. Circumcision was performed by a doctor in 732 (30%) boys, by a nurse in 1276 (52%) and by a traditional circumciser in 435 (18%). Post-operative complications were encountered in 209 (8.5%) boys. Circumcision is an important surgical procedure that should be performed by trained medical staff in medical institutions. Circumcision performed by medical professionals caused significantly less complications.

Keywords： circumcision     children     prevalence     religious     complications    

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Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 559-568 doi: 10.1007/s11783-012-0400-4

Abstract: Using methods based on the data envelopment analysis (DEA) model and exploratory spatial data analysis

Keywords： industrial eco-efficiency     data envelopment analysis (DEA) model     exploratory spatial data analysis (ESDA    

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New practice in semaglutide on type-2 diabetes and obesity: clinical evidence and expectation

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 17-24 doi: 10.1007/s11684-021-0873-2

Abstract: Obesity is an important risk factor of type 2 diabetes (T2D), which has become an important factor threatening human health. However, no perfect drug choice for obesity exists. Semaglutide is a kind of human glucagon-like peptide-1 (GLP-1) analog that promotes insulin secretion while inhibiting glucagon secretion through a glucose concentration-dependent mechanism. GLP-1 can also delay stomach emptying and suppress appetite to help lose weight. This review summarizes clinical evidence of the semaglutide effect on T2D and obesity and establishes expectations on future clinical trials for obesity treatment.

Keywords： semaglutide     type 2 diabetes     obesity    

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Technology innovation and practice on Shenhua heavy haul railway

Xue Jilian

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 43-49

Abstract:

Shenhua heavy haul railway engineering based on its own actual needs, committed to research and develop whole sets of heavy haul railway technology, and focused on launching engineering technology innovation mainly about three aspects: the railway engineering construction technology, heavy-load transportation technology, construction and operation management technology. Series of technology innovation impelled Shenhua Group to master the core technology of overloaded railway as soon as possible, promoted enterprise’s development, and remarkable social benefits and economic benefits had been achieved as well. Shenhua group oriented system for heavy haul railway technological innovation, in which enterprises played the leading role, aiming at market demands, and combined the efforts of enterprises, universities and research institutes, and pursued scientific research project by engineering means.

Keywords： heavy haul railway     technology innovation     practice experience    

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Study and practice on condition-based maintenance of induced fans in coal-fired power plants

CHEN Gang, LI Bing, CHEN Fei, HUANG Shuhong

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 211-215 doi: 10.1007/s11708-008-0028-z

Abstract: Reducing the enormous maintenance cost is essential to enhance the competitiveness for power plants. An overall design scheme for condition-based maintenance of induced fans is proposed for large thermal power plants. The interface of the above framework is simple and convenient; the optimum maintenance strategy is given by condition monitoring and risk evaluating. The decision-supported system was used in Guangdong Shajiao C Power Plant. The results show that it is a feasible maintenance optimization scheme for power plants.
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Exploration and Practice in Systems Engineering Management of Large Coal-based Integrated Energy Projects

Wen Ling

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 173-177 doi: 10.15302/J-FEM-2015029

Abstract: innovation, technological innovation and management innovation, introduces the exploration and engineering practiceon systems engineering of Shenhua’s coal-based integrated energy projects, the paper also presents practice

Keywords： coal-based     integrated energy     systems engineering     exploration     practice    

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Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 127-137 doi: 10.15302/J-FEM-2017011

Abstract: The popularization of the mobile internet has given rise to demand for flexible and convenient payment methods. For China, it is necessary to keep pace with or even lead the trend of innovation and development in the age of mobile payment. From the perspective of systems engineering, this paper introduces research and implementation of China UnionPay’s mobile payment project. The general requirements and core engineering problems of the mobile payment project are summarized based on analyses of the characteristics and engineering difficulties of this project. Integration of innovative technologies is introduced to resolve the contradiction between ease-of-use and security. A rapid iterative development process is adopted to improve the product release efficiency as well as the users' experience. The launch of the mobile payment project also opens the window to coordinating and upgrading the whole payment industry chains.

Keywords： systems engineering     mobile payment     engineering management method     Mobile QuickPass     national information security     rapid iteration process     financial security     coordination and cooperation    

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Research and Practice on the Engineering Management Method of Financial Informatization Project

Hong-feng Chai

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 165-172 doi: 10.15302/J-FEM-2015036

Abstract: From the perspective of systems engineering, this paper analyzes the characteristics of China’s bank card industry, including its accessibility, scale, and complexity. The author proposes a series of management methods for the financial informatization project by researching the general requirements of the financial information system and the characteristics and implementation of informatization in the bank card services. The paper concludes with an outlook on the future development of China’s bank card industry.

Keywords： system engineering     financial informatization     engineering management method     bank card     informatization switching system    

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Cultural differences define diagnosis and genomic medicine practice: implications for undiagnosed diseases

Xiaohong Duan, Thomas Markello, David Adams, Camilo Toro, Cynthia Tifft, William A. Gahl, Cornelius F. Boerkoel

Frontiers of Medicine 2013, Volume 7, Issue 3,   Pages 389-394 doi: 10.1007/s11684-013-0281-3

Abstract: meaningful, we hypothesize that the cultural expectations of genetic diagnoses and medical genetics practice

Keywords： genetics     cultural differences     undiagnosed diseases program    

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Title Author Date Type Operation

An exploratory study for predicting component reliability with new load conditions

Zhengwei HU, Xiaoping DU

Journal Article

Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Journal Article

Global shale gas development revelation and prospect of shale gas in China

Dong Dazhong,Wang Yuman,Li Denghua,Yang Hua,Li Xinjing,Wang Shufang

Journal Article

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Journal Article

Exploration on Engineering Management Practice of China’s High Speed Railways

Yong-fu Sun

Journal Article

Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

Journal Article

Circumcision of preschool boys in Baghdad, Iraq: prevalence, current practice and complications

Hussein Naji, Rajaa Mustafa

Journal Article

Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Journal Article

New practice in semaglutide on type-2 diabetes and obesity: clinical evidence and expectation

Journal Article

Technology innovation and practice on Shenhua heavy haul railway

Xue Jilian

Journal Article

Study and practice on condition-based maintenance of induced fans in coal-fired power plants

CHEN Gang, LI Bing, CHEN Fei, HUANG Shuhong

Journal Article

Exploration and Practice in Systems Engineering Management of Large Coal-based Integrated Energy Projects

Wen Ling

Journal Article

Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Journal Article

Research and Practice on the Engineering Management Method of Financial Informatization Project

Hong-feng Chai

Journal Article

Cultural differences define diagnosis and genomic medicine practice: implications for undiagnosed diseases

Xiaohong Duan, Thomas Markello, David Adams, Camilo Toro, Cynthia Tifft, William A. Gahl, Cornelius F. Boerkoel

Journal Article