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CROP-LIVESTOCK INTEGRATION FOR SUSTAINABLE AGRICULTURE IN CHINA: THE HISTORY OF STATE POLICY GOALS, REFORM

《农业科学与工程前沿(英文)》 2023年 第10卷 第4期   页码 518-529 doi: 10.15302/J-FASE-2023525

摘要:

This paper examines the historical evolution of crop-livestock integration in China with a specific focus on its role in mitigating non-point source pollution. Extensive examination of existing literature has unearthed the roots of crop-livestock integration dating back to the Western Zhou Dynasty (1046 to 771 BCE), ultimately culminating in a multifaceted and intricately interwoven system of rural development policies seen in contemporary China. This paper identifies and characterizes four distinct stages in the historical trajectory of crop-livestock integration: the era of self-sufficient subsistence production in traditional times (1046 BCE to 1948); the period where crop-livestock integration emerged as a pivotal strategy for augmenting grain and meat production under collectivist policies (1949‒1977); the phase marked by the industrialization and expansion of the livestock sector during the early years of economic reforms (1978‒2011); and the present era in which crop-livestock integration is harnessed as a mechanism for pollution control and ecological preservation in contemporary China (2012 to present). This paper illuminates the diverse contributions of crop-livestock integration in different epochs of rural development within China, which contributes to a nuanced and more theoretically grounded comprehension of circular agriculture. This understanding has the potential to be leveraged to promote sustainable rural development in broader contexts.

关键词: crop-livestock integration     non-point source pollution control     nutrient cycling     policy intervention     sustainable development    

The early percutaneous coronary intervention in elderly patients with acute coronary syndrome

HUANG Xiong, CAO Xuebin, ZHANG Gang

《医学前沿(英文)》 2008年 第2卷 第1期   页码 15-18 doi: 10.1007/s11684-008-0004-3

摘要: It is challenging to undo early percutaneous intervention (PCI) in the elderly with acute coronary syndrome (ACS). Fifteen patients older than 65 years with ACS within 24 hours of the event were admitted from April 4, 2004 to December 12, 2005. All the patients had early percutaneous coronary intervention and were followed up for 6–12 months by telephone or in the out-patient department. Nine of the 15 patients exhibited acute myocardial infarction (AMI). Six exhibited unstable angina (UA). All the patients had early PCI. The average door-to-balloon time was 78 minutes (40–110 minutes). The average PCI time was 99 minutes (68–120 minutes). Nineteen of 36 lesions in the fifteen angioplasty patients were treated and 20 stents were implanted in total. All the procedures were considered successful. Neither deaths nor recurrent angina occurred in the 6–12 months of follow-up. It was shown that early PCI might be an effective and safe method to treat elderly patients with ACS.

关键词: door-to-balloon     percutaneous intervention     coronary syndrome     angioplasty     successful    

Ultrasound-guided prostate percutaneous intervention robot system and calibration by informative particle

《机械工程前沿(英文)》 2022年 第17卷 第1期   页码 3-3 doi: 10.1007/s11465-021-0659-x

摘要: Applying a robot system in ultrasound-guided percutaneous intervention is an effective approach for prostate cancer diagnosis and treatment. The limited space for robot manipulation restricts structure volume and motion. In this paper, an 8-degree-of-freedom robot system is proposed for ultrasound probe manipulation, needle positioning, and needle insertion. A novel parallel structure is employed in the robot system for space saving, structural rigidity, and collision avoidance. The particle swarm optimization method based on informative value is proposed for kinematic parameter identification to calibrate the parallel structure accurately. The method identifies parameters in the modified kinematic model stepwise according to parameter discernibility. Verification experiments prove that the robot system can realize motions needed in targeting. By applying the calibration method, a reasonable, reliable forward kinematic model is built, and the average errors can be limited to 0.963 and 1.846 mm for insertion point and target point, respectively.

关键词: ultrasound image guidance     prostate percutaneous intervention     parallel robot     kinematics identification     particle swarm optimization     informative value    

Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery

《医学前沿(英文)》 2023年 第17卷 第1期   页码 75-84 doi: 10.1007/s11684-022-0950-1

摘要: This retrospective single-center registry study included all consecutive patients who underwent percutaneous coronary intervention (PCI) for a de novo left main coronary artery lesion using drug coated-balloon (DCB)-only strategy between August 2011 and December 2018. To best of our knowledge, no previous studies of DCB-only strategy of treating de novo left main coronary artery disease, exist. The primary endpoint was major adverse cardiovascular events (MACEs) including cardiac death, non-fatal myocardial infarction, and target lesion revascularization (TLR). The cohort was divided into two groups depending on weather the lesion preparation was done according to the international consensus group guidelines. Sixty-six patients (mean age 75±8.6, 72% male), 52% of whom had acute coronary syndrome, underwent left main PCI with the DCB-only strategy. No procedural mortality and no acute closures of the treated left main occurred. At 12 months, MACE and TLR occurred in 24% and 6% of the whole cohort, respectively. If the lesion preparation was done according to the guidelines, the MACE and TLR rates were 21.2% and 1.9%. Left main PCI with the DCB only-strategy is safe leading to acceptable MACE and low TLR rates at one year, if the lesion preparation is done according to the guidelines.

关键词: drug-coated balloon     left main     high bleeding risk     predilatation     calcifield lesion     percutaneous coronary intervention    

Molecular network-based intervention brings us closer to ending the HIV pandemic

Xiaoxu Han, Bin Zhao, Minghui An, Ping Zhong, Hong Shang

《医学前沿(英文)》 2020年 第14卷 第2期   页码 136-148 doi: 10.1007/s11684-020-0756-y

摘要: Precise identification of HIV transmission among populations is a key step in public health responses. However, the HIV transmission network is usually difficult to determine. HIV molecular networks can be determined by phylogenetic approach, genetic distance-based approach, and a combination of both approaches. These approaches are increasingly used to identify transmission networks among populations, reconstruct the history of HIV spread, monitor the dynamics of HIV transmission, guide targeted intervention on key subpopulations, and assess the effects of interventions. Simulation and retrospective studies have demonstrated that these molecular network-based interventions are more cost-effective than random or traditional interventions. However, we still need to address several challenges to improve the practice of molecular network-guided targeting interventions to finally end the HIV epidemic. The data remain limited or difficult to obtain, and more automatic real-time tools are required. In addition, molecular and social networks must be combined, and technical parameters and ethnic issues warrant further studies.

关键词: human immunodeficiency virus type 1     molecular cluster     transmission cluster     risk network     targeted intervention     evaluation    

Analysis of the current situation of environmental policy of China and establishment of distributed environmentalpolicy framework

Chaoyang FU,Wangfeng LI

《环境科学与工程前沿(英文)》 2015年 第9卷 第2期   页码 310-316 doi: 10.1007/s11783-014-0658-9

摘要: In this study, China’s current macro-environmental policies as well as their implementation and management tools are analyzed. By using the basic economic methodology, detailed studies are conducted focusing on the implementation effect of contemporary China’s typical environmental policy of the total pollutant discharge quantity control type, and also the two types of environmental management tools are compared from the perspective of implementation costs and policy uncertainty. By introduction of distributed management tools into the implementation of environmental policies, market-oriented means and the methods of economic analysis are introduced into environmental policy decision-making mechanisms, which could afford a new method for changing the current relatively low efficiency of environmental policy, solving the problem of “government failure” in environmental policy implementation, and providing a new way to make environmental policy system more flexible and more efficient. It is of great practical significance to solve China's current structural, complex and accumulative environmental problems.

关键词: environmental policy     distributed environment policy     distributed parameter model     lumped parameter model    

Expression of integrin in hepatic fibrosis and intervention of resveratrol

Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN

《医学前沿(英文)》 2009年 第3卷 第1期   页码 100-107 doi: 10.1007/s11684-009-0013-x

摘要: The aim of this study was to explore the expression of integrin-β1 in different stages of hepatic fibrosis and intervention of resveratrol as well as the way by which integrin-β1 promoted hepatic fibrosis. Hepatic fibrosis models of male Sprague Dawley (SD) rats were created and intragastric administration of resveratrol was given in low (40 mg/kg), middle (120 mg/kg) and high (200 mg/kg) dose groups. The expression of integrin-β1, tumor growth factor-β (TGF-β) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in different stages of hepatic fibrosis was detected by using RT-PCR. The expression of hexadecenoic acid (HA) and precollagen III (pc III) was assayed by radioimmunoassay. The expression of integrin-β1, TGF-β and TIMP-1 was determined in each group. Liver function and pathological sections of each group in different stages of hepatic fibrosis was tested to judge the therapeutic efficacy of resveratrol at different doses. The expression of integrin-β1 in normal control group was low and steady and was not increased as the development of hepatic fibrosis, but it is increased in other groups. The expression levels of integrin-β1 in the model control group (0.878±0.03, <0.01) and low dose group (0.855±0.04, <0.01) were higher than other groups, but there was no difference between model control group and low dose group ( >0.05). The expression levels of integrin-β1 and TGF-β in middle dose group and high dose group were higher than other groups ( <0.01). The expression levels of integrin-β1 and TGF-β in model control group and low dose group were lower than the normal control group ( <0.01). The expression levels of TIMP-1 in the model control and low dose groups were higher than the other groups ( <0.01). The expression levels of TIMP-1 in the middle dose group and the high dose group were lower than the normal control group ( <0.01). The expression of integrin-β1 existed in all stages of hepatic fibrosis of SD rats, and it was increased as the development of hepatic fibrosis. The expression of TGF-β and TIMP-1 was consistent with that of integrin-β1 in different stages of hepatic fibrosis. Resveratrol could improve the degree of hepatic fibrosis of SD rats and decrease the expression of integrin-β1 markedly at a dose of 120 mg/kg.

关键词: liver fibrosis     integrin-β1     resveratrol     tumor growth factor-β     tissue inhibitor of metalloproteinase-1    

Dietary Lipid Intervention in the Prevention of Brain Aging

Wei Xiong,Bing Fang,Xiaoyu Wang,Ming Zhang,Min Du,Jiazeng Sun,Juan Chen,Yixuan Li,Changhao Sun,Xingen Lei,Xue Zhang,Fazheng Ren,

《工程(英文)》 doi: 10.1016/j.eng.2023.04.012

摘要: As people live longer, the burden of aging-related brain diseases, especially dementia, is increasing. Brain aging increases the risk of cognitive impairment, which manifests as a progressive loss of neuron function caused by the impairment of synaptic plasticity via disrupting lipid homeostasis. Therefore, supplemental dietary lipids have the potential to prevent brain aging. This review summarizes the important roles of dietary lipids in brain function from both structure and mechanism perspectives. Epidemiological and animal studies have provided evidence of the functions of polyunsaturated fatty acids (PUFAs) in brain health. The results of interventions indicate that phospholipids—including phosphatidylcholine, phosphatidylserine, and plasmalogen—are efficient in alleviating cognitive impairment during aging, with plasmalogen exhibiting higher efficacy than phosphatidylserine. Plasmalogen is a recognized nutrient used in clinical trials due to its special vinyl ether bonds and abundance in the postsynaptic membrane of neurons. Future research should determine the dose-dependent effects of plasmalogen in alleviating brain-aging diseases and should develop extraction and storage procedures for its clinical application.

关键词: Brain aging     Nutritional intervention     Phospholipids     Phosphatidylcholine     Phosphatidylserine     Plasmalogen    

基于文化传承的微介入乡村规划策略研究

郭海鞍

《中国工程科学》 2019年 第21卷 第2期   页码 27-33 doi: 10.15302/J-SSCAE-2019.02.019

摘要:

长期以来,乡村规划一直沿袭城市规划设计的体系,以总图或鸟瞰图来表达对乡村规划的成果。很多地方政府一轮一轮做规划,但乡村风貌的改善效果甚微,这是因为忽视了乡村内在的文化传承问题,忽视了文化价值观的内在作用。源于城市的规划设计方法不能草率地划定乡村生活,因此需要研究一种与乡村文化传承相适应的规划设计理论。微介入规划理论是针对文化引导下的乡村复兴规划策略,基于一种小微渐进的方法,逐步实现乡村的改造与复兴,这种策略在当今大拆大改气势正盛的新一轮乡村规划进程中,显得尤为重要。

关键词: 乡村规划     微介入规划     推演、容错     乡村文化     乡村复兴    

China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

《能源前沿(英文)》 2023年 第17卷 第3期   页码 400-411 doi: 10.1007/s11708-023-0862-z

摘要: Carbon capture, utilization, and storage (CCUS) is estimated to contribute substantial CO2 emission reduction to carbon neutrality in China. There is yet a large gap between such enormous demand and the current capacity, and thus a sound enabling environment with sufficient policy support is imperative for CCUS development. This study reviewed 59 CCUS-related policy documents issued by the Chinese government as of July 2022, and found that a supporting policy framework for CCUS is taking embryonic form in China. More than ten departments of the central government have involved CCUS in their policies, of which the State Council, the National Development and Reform Commission (NDRC), the Ministry of Science and Technology (MOST), and the Ministry of Ecological Environment (MEE) have given the greatest attention with different focuses. Specific policy terms are further analyzed following the method of content analysis and categorized into supply-, environment- and demand-type policies. The results indicate that supply-type policies are unbalanced in policy objectives, as policy terms on technology research and demonstration greatly outnumber those on other objectives, and the attention to weak links and industrial sectors is far from sufficient. Environment-type policies, especially legislations, standards, and incentives, are inadequate in pertinence and operability. Demand-type policies are absent in the current policy system but is essential to drive the demand for the CCUS technology in domestic and foreign markets. To meet the reduction demand of China’s carbon neutral goal, policies need to be tailored according to needs of each specific technology and implemented in an orderly manner with well-balanced use on multiple objectives.

关键词: carbon capture     utilization     and storage (CCUS)     policy     content analysis     China    

气候干预:对全球安全和恢复力可能产生的影响 Views & Comments

Marcia McNutt

《工程(英文)》 2016年 第2卷 第1期   页码 50-51 doi: 10.1016/J.ENG.2016.01.015

Hierarchical methodological framework to improve Policy Environmental Assessment: Based on policy layer

Yinglie ZHOU, Cunkuan BAO,

《环境科学与工程前沿(英文)》 2010年 第4卷 第1期   页码 82-90 doi: 10.1007/s11783-010-0004-9

摘要: This study explores the current implementation challenges of the Policy Environmental Assessment (PEA), including the implementation of a far richer, more diverse (at macro level), and better understanding of PEA and integration with decision making. The results contribute to the analysis of PEA through different hierarchies of assessment. Stemming from the theory and practice of policy, a concept of PEA hierarchies is proposed including the uppermost PEA, upper-lower PEA, and lowermost PEA. Afterward, the differences of the three hierarchies are interpreted, in terms of aims, principles, processes, and methods. The evaluation of the policy environmental impacts from different lens helps solve the complexities of policies and identify opportunities for improvement of PEA.

关键词: Policy Environmental Assessment (PEA)     policy hierarchy     PEA hierarchy     methodological framework    

药物干预进入细胞疗法的第三纪元

何维

《工程(英文)》 2019年 第5卷 第1期   页码 5-9 doi: 10.1016/j.eng.2018.11.017

Translating evidence into policy in China: opportunities and challenges

Jiyao Wang, Xuejuan Jin

《医学前沿(英文)》 2011年 第5卷 第3期   页码 315-320 doi: 10.1007/s11684-011-0146-6

摘要: Research and evidence are critical for the formulation of policies and practices in support of health care. In the past two decades, the Chinese Clinical Epidemiology Network has been promoting evidence-based policy making in China. Evidence-based policy has become a major part of the government’s approach to policy making. The current article addresses the translation of evidence into health policies based on the expansion of evidence-based medicine in China. It also discusses the opportunities and challenges for certain evidence to be considered in policy making and practice in the future.

关键词: clinical epidemiology     evidence-based decision making     policy    

混凝土结构性干预所必需的材料力学性能 Article

Tamon Ueda

《工程(英文)》 2019年 第5卷 第6期   页码 1131-1138 doi: 10.1016/j.eng.2019.02.012

摘要:

结构性干预包括修复和(或)改善结构性能。除了混凝土和钢材这两种典型的混凝土结构材料外,各种纤维增强复合材料(FRP),混合纤维、聚合物和黏合剂的黏结材料也常被用于结构性干预。为了预测结构性能,有必要开发一种不仅适用于钢材,而且适用于其他材料的通用方法。这种通用模型可以提供有关改善结构性能所需的力学性能的信息。外部黏结是一种典型的结构干预方案,在新结构中没有得到应用。为了在基体混凝土和外部黏结材料的接合点上获得更好的黏结强度,我们有必要阐明材料的性能和结构细节。本文介绍基体混凝土的力学性能和相关干预材料用于以下目的:①获得更高的抗剪强度和减少构件在结构性干预后的极限变形;②使外部黏结获得更高的黏结强度。本文得出的结论是,在有结构干预的结构中,为了提高结构的力学性能,干预材料的一些力学性能和结构细节是新的,且不同于没有干预的结构。例如,在无结构性干预的结构中,高强度和高刚度是材料的重要性能,而高断裂应力和低刚度是结构干预材料的重要性能。

关键词: 结构性干预     高断裂应力     无屈服     低刚度     粗糙度     FRP 聚合物    

标题 作者 时间 类型 操作

CROP-LIVESTOCK INTEGRATION FOR SUSTAINABLE AGRICULTURE IN CHINA: THE HISTORY OF STATE POLICY GOALS, REFORM

期刊论文

The early percutaneous coronary intervention in elderly patients with acute coronary syndrome

HUANG Xiong, CAO Xuebin, ZHANG Gang

期刊论文

Ultrasound-guided prostate percutaneous intervention robot system and calibration by informative particle

期刊论文

Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery

期刊论文

Molecular network-based intervention brings us closer to ending the HIV pandemic

Xiaoxu Han, Bin Zhao, Minghui An, Ping Zhong, Hong Shang

期刊论文

Analysis of the current situation of environmental policy of China and establishment of distributed environmentalpolicy framework

Chaoyang FU,Wangfeng LI

期刊论文

Expression of integrin in hepatic fibrosis and intervention of resveratrol

Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN

期刊论文

Dietary Lipid Intervention in the Prevention of Brain Aging

Wei Xiong,Bing Fang,Xiaoyu Wang,Ming Zhang,Min Du,Jiazeng Sun,Juan Chen,Yixuan Li,Changhao Sun,Xingen Lei,Xue Zhang,Fazheng Ren,

期刊论文

基于文化传承的微介入乡村规划策略研究

郭海鞍

期刊论文

China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

期刊论文

气候干预:对全球安全和恢复力可能产生的影响

Marcia McNutt

期刊论文

Hierarchical methodological framework to improve Policy Environmental Assessment: Based on policy layer

Yinglie ZHOU, Cunkuan BAO,

期刊论文

药物干预进入细胞疗法的第三纪元

何维

期刊论文

Translating evidence into policy in China: opportunities and challenges

Jiyao Wang, Xuejuan Jin

期刊论文

混凝土结构性干预所必需的材料力学性能

Tamon Ueda

期刊论文