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A Systematic Analysis of Early Life Exposure to the Chinese Famine(1959-1961)and the Health of Older Adults-china,2008-2023

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china CDC weekly 2024年第11期6卷 203-207,I0001-I0003页

作者： Chi Shen xi Chen school of Public Policy and Administration Xi’an Jiaotong UniversityXi’an CityShaanxi ProvinceChina Department of Health Policy and management Yale School of Public HealthNew HavenCTU.S Department of Economics Yale UniversityNew HavenCTU.S

What is already known about this topic?There is mounting evidence indicating that the aging process initiates during early life stages,with in utero the individual’s environment playing a significant ***,it is crucial to comprehend the enduring effects of early life circumstances on health in old *** is added by this report?In this study,we conducted a meta-analysis to examine the effects of the Chinese Famine(1959–1961)on the health of older *** also explored potential mechanisms underlying these *** are the implications for public health practice?The complex interplay between early life circumstances,multiple health-related sectors,and healthy aging necessitates a comprehensive life-course approach and strategic interventions to enhance public health in an aging society.

关键词： life aging mount

Torque effect on vibration behavior of high-speed train gearbox under internal and external excitations

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Railway Engineering Science 2024年第2期32卷 229-243页

作者： Yue Zhou xi Wang Hongbo Que Rubing guo xinhai Lin Siqin Jin Chengpan Wu Yu Hou school of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China CRRC Qishuyan Institute Co. Ltd.No.258Wuyi RoadQishuyanChangzhou 213011China Frontiers Science Center for Smart High-Speed Railway System Beijing Jiaotong UniversityBeijing 100044China

The high-speed train transmission system,experiencing both the internal excitation originating from gear meshing and the external excitation originating from the wheel-rail interaction,exhibits complex dynamic behavior in the actual service *** paper focuses on the gearbox in the high-speed train to carry out the bench test,in which various operat-ing conditions(torques and rotation speeds)were set up and the excitation condition covering both internal and external was *** responses on multiple positions of the gearbox were acquired in the test and the vibration behavior of the gearbox was ***,a stochastic excitation modal test was also carried out on the test bench under different torques,and the modal parameter of the gearbox was ***,the sweep frequency response of the gearbox under gear meshing excitation was analyzed through dynamic *** results showed that the torque has an attenuating effect on the amplitude of gear meshing frequency on the gearbox,and the effect of external excitation on the gearbox vibration cannot be ignored,especially under the rated operating *** was also found that the torque affects the modal param-eter of the gearbox *** torque has a great effect on both the gear meshing stiffness and the bearing stiffness in the transmission system,which is the inherent reason for the changed modal characteristics observed in the modal test and affects the vibration behavior of the gearbox consequently.

关键词： High-speed train Gearbox Bench test Vibration behavior Modal identification

Study of Multistage Project Risk Identification-Assessment Process Based on Objective Orientation

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厦门大学学报（自然科学版） 2002年第S1期41卷 242-243页

作者： YANG Cai-xia, XU Yu (school of management, xi’an jiaotong university, xi’an 710049, china)

Risk management of projects is about the real time ev aluation and making of decisions proactively in order to maximize the probabilit y of achieving or surpassing the targets set for project objectives. Project objective generally includes three elements: time, cost, quality. Risk occurrin g in the projects will affect these three factors to some various degrees in the end. There are different emphases in each stage and integrated balanced goals b etween the three factors. A large complex engineering project generally consists of several stages each of which has variable objective combinations leading to variable important risks. In order to achieve strategic goals on the schedule under the restriction of lim ited resources, the paper gives the analysis of the so-called risk identificati on-assessment process on the basis of objective orientation. In this paper the set of involved mostly hazards is presented in terms of given objective weight v ector, and so is the model of risk ranking .By reducing the range of risk factor s step by step, risk manager could pay more attention to important ventures and effectively control of them. According to different objective combination at different stages, primary risk f actor sets at different stages are given. With the probability and their various effects to project objectives, evaluation of these sets is made aiming to r educing of the scope of risks and providing decision maker with a better decisio ns support. Successful projects are those, which focus on the relevant business objectives t hroughout the whole process and seek to information integration across project l ife cycle. This paper also introduces the idea of real time process of risk iden tification-assessment and presents a flow chart as a demonstration.

关键词： risk identification-assessment project objectiv e objective weight vector risk ranking

Evaluating genetic insights into ulcerative colitis and anxiety:Limitations and future directions

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World Journal of Gastroenterology 2024年第37期30卷 4156-4159页

作者： Ying Peng xi-Dai Long Department of Pathology The First Affiliated HospitalGuangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology Shenzhen Qianhai Shekou Free Trade Zone HospitalShenzhen 518000Guangdong ProvinceChina Department of Pathology The Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Liver Surgery Ren Ji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200000China

We reviewed the study by He et al,which investigates the genetic correlation between ulcerative colitis(UC)and anxiety using bidirectional Mendelian *** study reveals a genetic link between UC and anxiety,diverging from prior research associating higher anxiety with Crohn’s *** the study's use of large-scale genome-wide association studies data is commendable,it faces limitations such as single nucleotide polymorphism selection biases,lack of multiple testing corrections,and a reliance on European *** research should address these limitations,incorporate diverse populations,and explore psychotherapeutic interventions to improve UC management and patient outcomes.

关键词： Ulcerative colitis Anxiety Mendelian randomization Genome-wide association study Gut-brain axis Instrumental variables Genetic epidemiology Pleiotropy

The Evaluation Model of Government Intervention (GI) and its Optimization

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Systems Science and Systems Engineering 1996年第4期6卷 417-422页

作者： YANG Fenglin CHEN Jinxian(school of management xi’an jiaotong university, china, 710049)

The paper discusses how to reach the equilibrium and optimization GI during the period of economic transformation. The market economy might not work because of its mechanism flaws, based on the assumption that the government is the supplier and the market economy is the demander Of GI, there is an equilibrium and optimization issue. The theory suggests that GI could reach equilibrium through adjusting the government revenue, thus leads to the result of functional complement between the market economy and the GI, and the optimum economic efficiency.

关键词： Government Intervention (GI) Economic Transformation Equilibrium Optimization

Multiple Criteria Decision Making with Respect to Multiple Experts

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Systems Science and Systems Engineering 1998年第3期8卷 1-10页

作者： YANG Lei and xi Youmin school of management, xi’an jiaotong university, xi’an 710049

This paper deals with the multiple experts multiple criteria decision making (MEMCDM) problem. To help experts in a committee in reaching a satisfactory decision outcome, a three phase decision making method is developed in this study. We describe the procedure of the proposed three phase method and its application in a case study. Three phases—the initial comparison test, criteria aggregation, and experts’ aggregation, are concerned with fuzzy evaluation of the multiple criteria, which is based on fuzzy preference ordering and membership functions of the fuzzy set theory. The algorithms are presented thoroughly for each phase of overall procedure of MEMCDM. The three phase method combines the Delphi interactive method and the evaluation of minimal separation measure from the ideal solution. Finally worthwhile directions for future research are summarized.

关键词： three phase method experts’ judgment multiexperts multicriteria decision making compromise solution fuzzy set theory

The　Distribution　of　Power　Among　Group　Decision　Makers

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Systems Science and Systems Engineering 1997年第3期7卷 68-74页

作者： YANG Lei xi Youmin management school xi’an jiaotong university, xi’an 710049

The study of power distribution is the core of the study of group decision making *** is evident that the ability to diagnose power distributions in group decision making is important. In this paper, we clarify two major power indices the Shapley Shubik index and the Banzhaf index; the concepts of power in organization and in group decision making are discussed. Based on the concept of the entropy of information as supplied and defined by Shannon, an index of power is proposed which measures the distribution of power among decision makers (in this paper). By using this index, moreover, we can examine how decision maker can increase its power.

关键词： Power Decision Distribution Group Makers Among

A mathematical model for concept granular computing systems

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Science china(Information Sciences) 2010年第7期53卷 1397-1408页

作者： QIU guoFang1, MA JianMin2, YANG HongZhi3 & ZHANG Wenxiu3 1school of management, xi’an university of Architecture & Technology, xi’an 710055, china 2Faculty of Science, Chang’an university, xi’an 710064, china 3Faculty of Science, xi’an jiaotong university, xi’an 710049, china 1. school of management Xi’an University of Architecture & Technology Xi’an 710055 China2. Faculty of Science Chang’an University Xi’an 710064 China3. Faculty of Science Xi’an Jiaotong University Xi’an 710049 China

Extent-intent and intent-extent operators are introduced between two complete lattices in this paper and a mathematical model for concept granular computing system is established. We proved that the set of all concepts in this system is a lattice with the greatest element and the least element. This framework includes formal concept lattices from formal contexts, L fuzzy concept lattices from L fuzzy formal contexts and three kinds of variable threshold concept lattices, i.e. the extension and the intension of a concept are a crisp set and a crisp set, a crisp set and a fuzzy set, a fuzzy set and a crisp set, respectively. Finally, some iterative algorithms for constructing concepts are proposed and they are proved to be optimal concepts under some conditions in this system.

关键词： granular computing formal concept analysis concept lattice mathematical model

Protection and management of Intellectual Properties in the Networked Manufacturing

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厦门大学学报（自然科学版） 2002年第S1期41卷 236-237页

作者： ZHU Ai-hui 1,2 (1. school of management, xi’an jiaotong university, xi’an 710049, Chi na 2. xiangtan university, xiangtan 411105, china)

Networked manufacturing is a primary management mod e of virtual enterprise. It takes advantage of advanced network technology to pass information and devise and assemble necessary components so as to reach a certa in specific purpose. The characteristics of it are dynamic, international and pr ompt. In contrast with traditional manufacturing, networked manufacturing utilizes external predominant resources, and breaks through tangible limits of enterpris e, so it can optimize the combination of social resources and improve the enterp rise′capability of adapting to the constantly changing market. Networked manufacturing produces some problems while bringing enterprise infin ite commercial chance. Compared with traditional manufacturing, stealing intelle ctual achievements and encroaching the related property rights not only becomes easier and quicker, but also leaves no traces when enterprises transfer informat ion through network. It′s well known that competition among corporations in the future is the on e of intellectual property in the final analysis. Therefore, recently, the statu s of intellectual property protection is promoted grandly. In the following parts, several proposals on protecting intellectual property ar e put forward in detail. We can protect the intellectual property by the ways of strengthening the consci ousness of protection. We can protect the intellectual property by perfecting the law. We will know which behaviors on the network are legitimate and which one are illegitimate. As a result, it can decrease and resolve the conflicts partially. Besides, the article puts forward that the conflicts can be resolved through a m edi-institution, an authoritative governmental organization. Moreover, we should strengthen the education on ethics. At last, the paper presents that we can protect our intellectual property throug h international cooperation.

关键词： networked manufacturing intellectual property p rotection and management