检索结果-南通市图书馆

ON INTEGRABILITY UP TO THE BOUNDARY OF THE WEAK SOLUTIONS TO A NON-NEWTONIAN FLUID

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2019年第2期39卷 420-428页

作者： shanshan guo Zhong TAN School of Mathematical Sciences Xiamen University School of Mathematical Sciences and Fujian Provincial Key Laboratory on Mathematical Modeling and Scientific Computing Xiamen University

This work consider boundary integrability of the weak solutions of a non-Newtonian compressible fluids in a bounded domain in dimension three, which has the constitutive equartions as ■The existence result of weak solutions can be get based on Galerkin approximation. With the linear operator B constructed by BOGOVSKII, we show that the density ■is square integrable up to the boundary.

关键词： compressible fluid weak solutions non-Newtonian fluids integrability

Socialized care services for the aged population:System construction and support measures

在线全文

学校读者我要写书评

暂无评论

Frontiers of Engineering Management 2023年第2期10卷 339-353页

作者： Xitong guo Ting PAN shanshan guo School of Management Harbin Institute of TechnologyHarbin 150000China School of Business and Management Shanghai International Studies UniversityShanghai 201620China

Given the aging society,an increase in social demand,information-and communication technology-driven culture,and government policy support emerges to enable the development of the socialized care services system for the aged(SCSSA).The development of the SCSSA would be a significant step toward addressing China’s aging ***,the construction of the SCSSA challenges the theories and methods of traditional elderly care service system ***,the implementation path for such elderly care service policies is unclear,the necessary technological support is insufficient,and the mechanism for integrating intelligent information technology remains ***,this paper focuses on the needs of the elderly,grounded in the context of the changing elderly care service policies in China,and proposes a research paradigm that integrates system construction and support measure *** then construct the original SCSSA,which includes“material+spirit+medical treatment+healthcare”and propose a method of optimization and ***,we build the research framework of systematic support measures from the perspectives of policy reconstruction,institutional embeddedness,and technical *** work provides theoretical support and practical guidance for the construction and dynamic optimization of the SCSSA,thus making a significant contribution that will help China effectively cope with its aging society.

关键词： socialized care service for the elderly system construction support measure

Lower serum magnesium concentration and higher 24-h urinary magnesium excretion despite higher dietary magnesium intake in athletes:a systematic review and meta-analysis

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2023年第5期12卷 1471-1480页

作者： Haixin Zhang Ruwen Wang shanshan guo Qianqian Tian Shuang Zhang Liang guo Tiemin Liu Ru Wang School of Kinesiology Shanghai University of SportShanghai 200438China Department of Physical Education Huainan Normal UniversityHuainan 232038China State Key Laboratory of Genetic Engineering Department of Endocrinology and MetabolismSchool of Life SciencesInstitute of Metabolism and Integrative BiologyHuman Phenome InstituteZhongshan HospitalFudan UniversityShanghai 200032China School of Kinesiology Harbin Sport UniversityHarbin 150008China

Magnesium plays a critical role in the human's life activities and energy metabolism. This study aimed to evaluate the magnesium status of athletes via a systematic review of cross-sectional studies. A comprehensive systematic search was conducted in PubMed, Web of Science, SPORTDiscus, Cochrane Library electronic databases, and other sources before April 5, 2021. Fourteen studies were included in the systematic review, involving 855 athletes and 521 control subjects. Serum magnesium concentration was significantly lower in athletes(mean difference(MD):-0.04 mmol/L;95% confidence interval(CI):-0.06 to-0.01;P = 0.02)in spite of significantly higher dietary magnesium intake(MD: 51.72 mg/day;95% CI: 14.62 to 88.83;P = 0.006). Meta-analysis showed that 24-h urinary magnesium excretion in athletes was significantly higher than that in the untrained population(MD: 0.76 mmol/day;95% CI: 0.11 to 1.41;P = 0.02). Despite higher total dietary magnesium intake, athletes generally have lower serum magnesium concentration and higher 24-h urinary magnesium excretion, demonstrating that the magnesium requirement of athletes is higher than the untrained population. It is necessary to carry out a dietary assessment and nutrition counseling to help athletes adopt proper diets to meet their nutritional needs in exercise.

关键词： Athletes Magnesium status Dietary magnesium intake Serum magnesium

Online Healthcare Community Interaction Dynamics

在线全文

学校读者我要写书评

暂无评论

Journal of Management Science and Engineering 2016年第1期1卷 58-74页

作者： Xitong guo shanshan guo Douglas Vogel Yijun Li School of Management Harbin Institute of Technology150001 HarbinChina Department of Management Sciences National Natural Science Foundation of China(NSFC)Beijing 100085China

With the increasing dilemma of the rapid global demand for healthcare services(often in the presence of limited resources),how to creatively allocate and use healthcare resources across a widespread population has become a salient *** healthcare communities(OHCs)are regarded as a potential ICT-based partial *** contrast to traditional healthcare,online doctor-patient interaction is unlimited in terms of time and space limitations while an OHC is exposed to the whole *** characteristics are key to achieving synergistic doctor-patient interaction and community development in the longer *** order to explore the nature of doctor-patient interaction dynamics in an OHC,we systematically investigate doctor-patient interaction dynamics from the dual perspectives of doctor and *** doctor-patient interaction dual-cycle model has been built based on six doctor-patient interaction processes(i.e.,searching,choosing,knowledge sharing,providing,receiving and balancing).According to our dual-cycle model,four key managerial issues in OHC(information asymmetry,incentive mechanisms,service delivery processes and interaction mechanisms)have been identified as *** and directions for future research,with challenges as well as opportunities,have been elaborated.A broad view with fruitful research potential is ensured and new theories and methods ultimately provide implications for effectively and efficiently allocating scarce healthcare resources to a broader population.

关键词： Online Healthcare Community Doctor-Patient Interaction Dual-Cycle Model Interaction Dynamics Incentive Mechanisms

Integrated uncertain models for runoff forecasting and crop planting structure optimization of the Shiyang River Basin,north-west China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Agricultural Science and Engineering 2018年第2期5卷 177-187页

作者： Fan ZHANG Mo LI shanshan guo Chenglong ZHANG Ping guo Centre for Agricultural Water Research in China China Agricultural University School of Water Conservancy & Civil Engineering Northeast Agricultural University

To improve the accuracy of runoff forecasting,an uncertain multiple linear regression(UMLR) model is presented in this study. The proposed model avoids the transfer of random error generated in the independent variable to the dependent variable, as this affects prediction accuracy. On this basis, an inexact two-stage stochastic programming(ITSP) model is used for crop planting structure optimization(CPSO) with the inputs that are interval flow values under different probabilities obtained from the UMLR model. The developed system, in which the UMLR model for runoff forecasting and the ITSP model for crop planting structure optimization are integrated, is applied to a real case study. The aim of the developed system is to optimize crops planting area with limited available water resources base on the downstream runoff forecasting in order to obtain the maximum system benefit in the future. The solution obtained can demonstrate the feasibility and suitability of the developed system, and help decision makers to identify reasonable crop planting structure under multiple uncertainties.

关键词： crop planting structure optimization inexact two-stage stochastic programming runoff forecasting Shiyang River Basin uncertain multiple linear regression

Impacts of exercise interventions on different diseases and organ functions in mice

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2020年第1期9卷 53-73页

作者： shanshan guo Yiru Huang Yan Zhang He Huang Shangyu Hong Tiemin Liu School of Kinesiology Shanghai University of SportShanghai 20043&China State Key Laboratory of Genetic Engineering School of Life SciencesFudan UniversityShanghai 200032China Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education College of Life ScienceJilin UniversityChangchun 130012China Department of Endocrinology and Metabolism State Key Laboratory of Genetic EngineeringSchool of Life SciencesZhongshan HospitalFudan UniversityShanghai 200032China

Background'. In recent years, much evidence has emerged to indicate that exercise can benefit people when performed properly. This reviewsummarizes the exercise interventions used in studies involving mice as they are related to special diseases or physiological status. To furtherunderstand the effects of exercise interventions in treating or preventing diseases, it is important to establish a template for exercise interventionsthat can be used in future exercise-related ***'. PubMed was used as the data resource for articles. To identify studies related to the effectiveness of exercise interventions for treatingvarious diseases and organ functions in mice, we used the following search language: (exercise [Title] OR training [Title] OR physical activity[Title]) AND (mice [title/abstract] OR mouse [title/abstract] OR mus [title/abstract]). To limit the range of search results, we included 2 filters:one that limited publication dates to "in 10 years,^ and one that sorted the results as "best match^^. Then we grouped the commonly used exercisemethods according to their similarities and differences. We then evaluated the effectiveness of the exercise interventions for their impact on diseasesand organ functions in 8 different ***'. A total of 331 articles were included in the analysis procedure. The articles were then segmented into 8 systems for which the exerciseinterventions were used in targeting and treating disorders: motor system (60 studies), metabolic system (45 studies), cardio-cerebral vascularsystem (58 studies), nervous system (74 studies), immune system (32 studies), respiratory system (7 studies), digestive system (1 study), and thesystem related to the development of cancer (54 studies). The methods of exercise interventions mainly involved the use of treadmills, voluntarywheel-running, forced wheel-running, swimming, and resistance training. It was found that regardless of the specific exercise method used, mostof them demonstrat

关键词： Diseases Exercise intervention Mice Organ functions

Fractal structure reconstruction for alumina-silicate refractory fiber and simulation of the thermal conductivity

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2010年第1期19卷 80-86页

作者： XIA Dehong,guo shanshan,and Ren Ling Department of Thermal Engineering,University of Science and Technology Beijing,Beijing 100083,China Department of Thermal Engineering University of Science and Technology Beijing Beijing China

In this paper, it is proved that the intemal porous structure of alumina-silicate refractory fiber has fractal characteristics, which is reconstructed by the computer and the reconstructed structure further proved to have fractal characteristics. Based on the reconstructed structure, the network-thermal-resistance model is established to calculate the thermal conductivity of the fiber. It is shown that the calculated results agree well with the previous experimental ones, proving the correctness of the method.

关键词： fractal refractory fiber thermal conductivity

Necessity and feasibility of improving the residual resistance factor of polymer flooding in heavy oil reservoirs

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2010年第2期7卷 251-256页

作者： Shi Leiting Ye Zhongbin Zhang Zhuo Zhou Changjiang Zhu shanshan guo Zhidong State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University ChengduSichuan 610500 China

The efficiency of water flooding in heavy oil reservoirs would be improved by increasing the viscosity of the displacing phase, but the sweep efficiency is not of significance due to the low mobility of the vicious oil. On the basis of mobility control theory, increasing the residual resistance factor not only reduces the water-oil mobility ratio but also decreases the requirement for viscosity enhancement of the polymer solution. The residual resistance factor caused by hydrophobic associating polymer solution is higher than that caused by polyacrylamide solution in brine containing high concentrations of calcium and magnesium ions. The results of numerical simulations show that the polymer flooding efficiency improved by increasing the residual resistance factor is far better than that by only increasing solution viscosity. The recovery factor of heavy oil reservoirs （70 mPa·s） can be enhanced by hydrophobic associating polymer solution of high residual resistance factor （more than 3） and high effective viscosity （24 mPa·s）. Therefore, increasing the residual resistance factor of the polymer solution not only decreases the requirement for the viscosity of polymer solution injected into heavy oil reservoirs but also is favorable to enhanced oil recovery during polymer flooding.

关键词： Heavy oil reservoir polymer flooding mobility control residual resistance factor viscosity

A partial pathway- and network-based transformation reveals the synergistic mechanism of JA and UA against cerebral ischemia-reperfusion injury

在线全文

学校读者我要写书评

暂无评论

Protein & Cell 2014年第11期5卷 873-877页

作者： shanshan guo Li guo Yanan Yu Bing Li YingyingZhang Haixia Li Ping Wu Jie Wang Ye Yuan Zhong Wang Yongyan Wang Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences Beijing 100700 China Guang'anmen Hospital China Academy of Chinese Medical Sciences Beijing 100700 China Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical Sciences Beijing 100700 China Institute of Information on Traditional Chinese Medicine China Academy of Chinese Medical Sciences Beijing 100700 China

Dear Editor, Ischemic stroke falls under the category of complex diseases, which do not obey the single-gene dominant or single-gene recessive Mendelian pattern of inheritance but rather arises from the combination of numerous genetic variants and environmental factors （Cho et al., 2012）. Given this degree of complexity, a single compound could never be expected to manage or reverse the effects of a stroke. Recently there has been accumulating evidence suggesting that combination therapies could exert a significant effect on areas affected by a cerebral ischemic stroke. Combination therapies that simultaneously impact multiple targets have promise in the control of complex diseases by way of synergy （Li et al., 2011）.

关键词：