检索结果-南通市图书馆

Epidemiology and current management of cerebrovascular disease in China

在线全文

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2024年第5期21卷 465-474页

作者： sheng-Shou hu The Writing Committee of the Report on Cardiovascular Health and Diseases in China

The Annual Report on Cardiovascular Health and Diseases in China(2022)intricate landscape of cardiovascular health in *** connection with the previous section,this fifth section of the report continues the dissection on the manage-ment of cardiovascular diseases(CVD).Cerebrovascular disease is the leading cause of death and loss of healthy life among Chinese *** on the results of GBD 2019,from 1990 to 2019,the years of life lost due to premature death caused by stroke showed a decreasing trend,while the years lived with disability still increased *** present,national mortal-ity surveillance system can provide national and provincial representative annual death data on cerebrovascular disease,but the national representative data on some other important epidemiological indicators(such as incidence,prevalence,disability rate,and case fatality rate)are scarce in *** the construction of large cohort population and extension of follow-up time,re-search on stroke-related risk factors is increasing,providing a basis for the prevention and control of risk *** to limited large-scale population-based intervention studies,there is a lack of epidemiological evidence to transform into feasible interven-tion strategies and *** recent years,great progress in endovascular treatment for basilar-artery occlusion has been achieved in China,but there is still much room for improvement of guideline-based anticoagulant treatment and lipid-lowering treatment,as well as standardized diagnosis and treatment among patients with ischemic stroke.

关键词： prevention diagnosis Epidemiology

Epidemiology and current management of cardiovascular disease in China

在线全文

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2024年第4期21卷 387-406页

作者： sheng-Shou hu the Writing Committee of the Report on Cardiovascular Health and Dis-eases in China Fuwai Hospital National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

The Annual Report on Cardiovascular Health and Diseases in China(2022) intricate landscape of cardiovascular health in China. This is the fourth section of the report with a specific focus on epidemiology and current management of cardiovascular disease(CVD) in China. This section of the report highlights the epidemiological trends of CVD in China. It reveal a concerning rise in prevalence, with approximately 330 million affected individuals, including significant numbers with stroke, coronary artery disease(CAD), heart failure, and other conditions. CVD stands as the primary cause of mortality among both urban and rural populations, accounting for nearly half of all deaths in 2020. Mortality rates are notably higher in rural areas compared to urban centers since 2009. While age-standardized mortality rates have decreased, the absolute number of CVD deaths has increased, primarily due to population aging. Ischemic heart disease, hemorrhagic and ischemic strokes are the leading causes of CVD-related deaths. Notably, the burden of atherosclerotic cardiovascular disease has risen substantially, with atherosclerotic cardiovascular disease-related deaths increasing from 1990 to 2016. The incidence of ischemic stroke and ischemic heart disease has shown similar increasing trends over the past three decades. CAD mortality, particularly acute myocardial infarction, has been on the rise, with higher mortality rates observed in rural areas since 2016. The prevalence of CAD has increased significantly, with over 11 million patients identified in 2013. Studies assessing hospital performance in managing acute coronary syndrome reveal gaps in adherence to guideline-recommended strategies, with disparities in care quality across hospitals. However, initiatives like the China Patient-centered Evaluative Assessment of Cardiac Events(PEACE)-Retrospective AMI Study and the Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome(CCC-ACS) project aim to improve patien

关键词： epidemiology landscape deaths

Influencing Factors on Cardiovascular Health in China

在线全文

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2024年第1期21卷 4-33页

作者： sheng-Shou hu 无 Fuwai Hospital Chinese Academy of Medical Sciences BeijingChina the Writing Committee of the Report on Cardiovascular Health and Diseases in China

The Annual Report on Cardiovascular Health and Diseases in China(2022)intricate landscape of cardiovascular health in *** is the first section of the report,which dissects influential factors across diverse *** investigation identifies tobacco use as a paramount concern,portraying China as the global epicenter of tobacco *** smoking,exacerbated by second-hand smoke exposure,emerges as a critical and preventable risk factor,contributing to a surge in attributable deaths over the past three *** the realm of dietary nutrition,the study discerns an overall improvement,yet discerns worrisome deviations,notably an escalating fat intake surpassing recommended *** shifting dietary structure reveals diminished consumption of cereals and vegetables juxtaposed with an uptick in animal foods,while excessive intake of cooking oil and salt persists,straying substantially from endorsed *** exploration of physical activity patterns unfolds a nuanced *** trends are observed among students,with concerns arising from sedentary behaviors and inadequate adherence to recommended *** analysis spans a trajectory of declining physical activity in Chinese adults,coupled with an alarming surge in sedentary leisure time,ultimately linking these factors to heightened risks of cardiovascular diseases and increased *** examination of overweight and obesity trends uncovers a relentless upward trajectory,projecting substantial prevalence by *** prevalence rates underscore the imperative for targeted interventions to curtail this burgeoning health crisis,with the anticipated prevalence extending to nearly two-thirds of the adult *** factors,notably depression,constitute an integral facet of cardiovascular *** rates among patients with coronary artery disease and acute myocardial infarction underscore the intricate interplay between mental health and cardiovascular

关键词： Influencing smoke linking

Salp Swarm Incorporated Adaptive Dwarf Mongoose Optimizer with Lévy Flight and Gbest-Guided Strategy

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2024年第4期21卷 2110-2144页

作者： Gang hu Yuxuan Guo Guanglei sheng Department of Applied Mathematics Xi’an University of TechnologyXi’an710054People’s Republic of China School of Computer Science and Engineering Xi’an University of TechnologyXi’an710048People’s Republic of China Department of Electronics and Information Engineering Bozhou UniversityBozhou236800People’s Republic of China

In response to the shortcomings of Dwarf Mongoose Optimization(DMO)algorithm,such as insufficient exploitation capability and slow convergence speed,this paper proposes a multi-strategy enhanced DMO,referred to as ***,we propose an improved solution search equation that utilizes the Gbest-guided strategy with different parameters to achieve a trade-off between exploration and exploitation(EE).Secondly,the Lévy flight is introduced to increase the diversity of population distribution and avoid the algorithm getting stuck in a local *** addition,in order to address the problem of low convergence efficiency of DMO,this study uses the strong nonlinear convergence factor Sigmaid function as the moving step size parameter of the mongoose during collective activities,and combines the strategy of the salp swarm leader with the mongoose for cooperative optimization,which enhances the search efficiency of agents and accelerating the convergence of the algorithm to the global optimal solution(Gbest).Subsequently,the superiority of GLSDMO is verified on CEC2017 and CEC2019,and the optimization effect of GLSDMO is analyzed in *** results show that GLSDMO is significantly superior to the compared algorithms in solution quality,robustness and global convergence rate on most test ***,the optimization performance of GLSDMO is verified on three classic engineering examples and one truss topology optimization *** simulation results show that GLSDMO achieves optimal costs on these real-world engineering problems.

关键词： Dwarf mongoose optimization algorithm Gbest-guided Lévy flight Adaptive parameter Salp swarm algorithm Engineering optimization Truss topological optimization

An Efficient Optimization Design Framework for Low-Resistance Shape of Bionic Amphibious Robot

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

China Ocean Engineering 2024年第1期38卷 117-128页

作者： ZHANG Dai-yu ZHANG Man-yu WANG Zhi-dong ZHENG Wen-sheng LING Hong-jie hu Jun-ming School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

To realize the low-resistance shape optimization design of amphibious robots,an efficient optimization design framework is proposed to improve the geometric deformation flexibility and optimization *** the proposed framework,the free-form deformation parametric model of the flat slender body is established and an analytical calculation method for the height constraints is *** method is introduced to carry out the high-precision resistance calculation and a constrained Kriging-based optimization method is built to improve the optimization efficiency by circularly infilling the new sample points which satisfying the ***,the shape of an amphibious robot example is optimized to get the low-resistance shape and the results demonstrate that the presented optimization design framework has the advantages of simplicity,flexibility and high efficiency.

关键词： amphibious robot optimization method free-form deformation CFD-based hydrodynamic calculation

Disorders of cardiac rhythm in China

在线全文

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2024年第7期21卷 703-712页

作者： sheng-Shou hu The Writing Committee of the Report on Cardiovascular Health and Diseases in China

The Annual Report on Cardiovascular Health and Diseases in China(2022)intricate landscape of cardiovascular health in *** connection with the previous section,this seventh section of the report offers a comprehensive analysis of dis-orders of heart rhythm in *** 2021,China has achieved significant development and gratifying results in many aspects of the field of *** bundle branch pacing(LBBP),as an emerging pacing technique originating from China,has received widespread *** research results have emerged on its indications,surgical procedures,clinical evaluation,and com-parison with other pacing *** feasibility,effectiveness,and safety have been basically verified,but its long-term pro-gnosis still needs further confirmation from larger samples and longer follow-up time research *** pacemakers have begun to be used in a wider range of clinical applications,and related large sample cohort studies have been *** addi-tion,there are also noteworthy new achievements in the fields of pacemaker remote programming,anticoagulation and radiofre-quency catheter ablation(RFCA)therapy for atrial fibrillation,and implantable cardioverter defibrillator prevention of sudden cardiac *** terms of clinical practice,due to COVID-19 pandemic,the number of RFCA procedures and other device im-plantations in China has fluctuated,but it has gradually recovered since 2020.

关键词： cardiac prevention landscape

Copper-coated Porous Polyimide as Ultralight and Safe Current Collectors for Advanced LIBs

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2024年第4期42卷 521-531页

作者： Cun-sheng Liu Jun-Qi hu Ting-Ting Mao Song-Yi Liao Ru-ming Feng Yi-Dong Liu Yong-Gang Min School of Materials and Energy Guangdong University of TechnologyGuangzhou510006China College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and EngineeringGuangzhou510225China Shanwei Branch of Advanced Energy Science and Technology Guangdong Laboratory Shanwei516600China

Metallic copper is widely used as current collector(CC) for graphite anode of lithium-ion batteries(LIBs) due to its high electrical conductivity and electrochemical stability. However, the large volume density of commercial copper foil(~8.9 g·cm^(-3)) limits the increase of energy density of battery. Here, copper-coated porous polyimide(Cu@PPI) was prepared by vacuum evaporation as collector for the graphite anode. The sandwich structure connects the copper metal on both sides of the collector with excellent electrical conductivity. Compared to commercial Cu foil, Cu@PPI has lighter mass(≤3.9 mg for disc of 12 mm diameter versus 9.9 mg of ~10 μm Cu foil) and lower volume density(≤3.3 g·cm^(-3)). In addition, the porous structure allows of better adhesion of reactive substances and electrochemical properties than pure Cu foils. It is estimated that the energy density of Cu@PPI should be much higher than that of Cu foil. This strategy should be applicable for other current collectors.

关键词： Copper-coated Vacuum evaporation Porous polyimide(PPI) Current collector(CC) LIBs

基于量化的GSI系统和Hoek-Brown准则的岩体力学参数的估计

在线全文

学校读者我要写书评

暂无评论

岩土力学 2011年第3期32卷 861-866页

作者：胡盛明胡修文中国地质大学工程学院武汉430074

Hoek-Brown强度准则与Mohr-Coulomb强度准则相比,综合考虑了岩体结构、岩块强度、应力状态等多种因素的影响,可更好地反映岩体的非线性破坏特征,更符合工程实际,由该准则所估算的岩体力学参数可为最终确定岩体力学参数提供重要依据。基... 详细信息

Hoek-Brown强度准则与Mohr-Coulomb强度准则相比,综合考虑了岩体结构、岩块强度、应力状态等多种因素的影响,可更好地反映岩体的非线性破坏特征,更符合工程实际,由该准则所估算的岩体力学参数可为最终确定岩体力学参数提供重要依据。基于引入的岩体体积节理数Jv和结构面条件因子JC量化的GSI(地质强度指标)围岩分级系统和Hoek-Brown强度准则来估计岩体力学参数,并结合具体的工程估算岩体的力学参数验证应用效果,其成果对工程设计和施工有重要指导意义。

关键词：地质强度指标围岩分级 Hoek-Brown强度准则岩体力学参数

Nitrate Leaching in an Irrigated Wheat-Maize Rotation Field in the North China Plain

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2005年第2期15卷 196-203页

作者： ZHANGYu-ming huChun-sheng ZHANGJia-Bao CHENDe-Li LIXiao-Xin InstituteofGeneticandDevelopmentalBiology ChineseAcademyofSciencesShijiazhuang050021（China） InstituteofSoilScience ChineseAcademyofSciencesNanjing210008（China） DepartmentofResourceManagementandHorticulture InstituteofLandandFoodResourcetheUniversityofMelbourneParkville3052Victoria（Australia）

Soil water deep drainage and nitrate (NO-3) leaching losses below the root zone were investigated in a 1 ha wheat-maize rotation field under traditional agricultural management that local farmers generally follow in the North China Plain, using the soil water balance method and NO3-N concentration in suction samples. Water drainage, and NO3-N distribution and leaching losses exhibited pronounced spatial and temporal variability. Soil water deep drainage and NO3-N leaching loss mostly occurred during the sum…

关键词： deep drainage nitrate leaching soil water