检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

论我国高校转专业制度

湖北文理学院学报 2024年第6期45卷 63-68页

作者：徐春成高佳琳西北农林科技大学人文社会发展学院陕西杨凌712100

转专业是为弥补现行高考志愿填报方式不足、为低年级大学生提供专业更换机会的制度安排。现行转专业制度存在缺乏统一适当规范、规则设计及政策实施效果与目的偏离、考核方式设置不合理等问题,应当从重置制度目的、放宽限制、建立分层... 详细信息

转专业是为弥补现行高考志愿填报方式不足、为低年级大学生提供专业更换机会的制度安排。现行转专业制度存在缺乏统一适当规范、规则设计及政策实施效果与目的偏离、考核方式设置不合理等问题,应当从重置制度目的、放宽限制、建立分层次的考核机制、健全辅助配套制度等角度加以完善。

关键词：普通高等学校学生管理转专业制度

维普期刊数据库博看期刊

制造业集聚对产业结构升级的影响及其空间溢出效应——基于空间杜宾模型的实证分析

在线全文

学校读者我要写书评

暂无评论

经济研究导刊 2024年第9期 36-38页

作者：陈刘颖高佳琳李坤浩东南大学经济管理学院南京211100

在产业集聚相关理论的基础上,利用2006—2019年我国地级市面板数据,构建空间杜宾模型并进行检验,实证结果显示,制造业在地理空间上的集聚不仅可以显著促进当地产业结构升级,而且还通过空间溢出效应带动周边地区产业结构向更高层次演进... 详细信息

在产业集聚相关理论的基础上,利用2006—2019年我国地级市面板数据,构建空间杜宾模型并进行检验,实证结果显示,制造业在地理空间上的集聚不仅可以显著促进当地产业结构升级,而且还通过空间溢出效应带动周边地区产业结构向更高层次演进。从中间投入品效应、共享劳动力等生产要素、知识溢出、专业化生产以及竞争效应的视角探讨可能的路径机制。基于上述研究结论,提出因地制宜布局制造业集群、优化资源配置以破除产业同构化、减少低水平竞争问题,同时完善官产学研协同创新机制,加速知识技术在地区间扩散的政策建议。

关键词：制造业集聚产业结构升级空间溢出效应知识溢出

维普期刊数据库博看期刊

电梯试验塔井道受力分析与钢结构安装施工技术

在线全文

学校读者我要写书评

暂无评论

建筑机械化 2024年第7期45卷 110-113页

作者：陆萱张一川杨剑李占杰高加林叶强中国建筑第二工程局有限公司广东深圳518005

针对电梯试验塔安全钳试验时可能出现的极端试验工况,提出了采用动力时程计算分析原始试验数据的方法,并根据数据分析结果验证钢结构强度,实验井道结构采用箱型钢梁进行设计;并针对实验过程中会出现的冲击作用,通过等效弹簧模拟对实验... 详细信息

针对电梯试验塔安全钳试验时可能出现的极端试验工况,提出了采用动力时程计算分析原始试验数据的方法,并根据数据分析结果验证钢结构强度,实验井道结构采用箱型钢梁进行设计;并针对实验过程中会出现的冲击作用,通过等效弹簧模拟对实验过程中钢结构的震动对混凝土结构所造成的影响进行研究,完善了实验井道减震系统的设计;通过实体尺寸测量进行钢构件的下料及加工,以及橡胶缓冲垫的精确安装。

关键词：电梯试验塔井道箱型钢梁减震钢结构

The Coordination Effect of Marine and Land Resources Carrying Capacity of Coastal Areas in China

在线全文

学校读者我要写书评

暂无评论

Proceedings of Business and Economic Studies 2022年第2期5卷 1-11页

作者： Mengwan Zhang Fengfeng gao jialin gao School of Economics and Management Beijing University of TechnologyBeijing 100124China School of Economics and Management Tsinghua UniversityBeijing 100084China

The carrying capacity of marine and land resources is one of the indicators to measure the sustainable development level of coastal areas,reflecting the supporting capacity of the ecological environment for human activities and the impact of human activities on the regional *** paper establishes an evaluation index system to determine the evaluation value of the carrying capacity of marine and land resources in China’s coastal areas,the evaluation index of marine and land resources supply capacity(economic and social development demand)subsystem,and the degree of coordinated development of the subsystems in 11 coastal areas from 2006 to *** results showed that the average supply and demand capacity of the two subsystems in each region is not high;the average demand level of economic and social development is higher than the supply capacity of marine and land resources;the carrying capacity of marine and land resources is slightly overloaded in most areas;the collaborative development between the supply and demand subsystems is barely coordinated with moderate imbalance;most regions need to move in the direction of green development to ensure the supply capacity of marine and land resources.

关键词： Marine and land resources Carrying capacity Sustainable and coordinated development

雷公藤多苷治疗糖尿病肾病1例及抗炎抗纤维化疗效分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华全科医学 2024年第3期22卷 530-533页

作者：李温柳邢春燕李勤赵咏莉何春玲王李卓高家林皖南医学院弋矶山医院内分泌科安徽芜湖241000

糖尿病肾脏疾病(DN)是最令人担忧的糖尿病慢性微血管并发症之一,也是终末期肾病(ESRD)的主要原因。对DN患者积极干预,完善饮食、运动、血糖、血压等基础治疗的情况下,肾脏特异性药物对DN患者仍有良好获益。特别是中国传统医学药物,在现... 详细信息

糖尿病肾脏疾病(DN)是最令人担忧的糖尿病慢性微血管并发症之一,也是终末期肾病(ESRD)的主要原因。对DN患者积极干预,完善饮食、运动、血糖、血压等基础治疗的情况下,肾脏特异性药物对DN患者仍有良好获益。特别是中国传统医学药物,在现代医药工艺下形成中成药物,以雷公藤多苷(GTW)、百令胶囊等为代表。临床上合理选择和使用中成药物是DN治疗的重要方法之一。本文报道1例GTW治疗DN患者,以进一步提高临床医师对该病和GTW的认识。

关键词：糖尿病肾病雷公藤多苷抗炎抗纤维化

Design and test of a wheel-belt type cotton stalk puller

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2024年第2期17卷 102-108页

作者： jialin Cai Jiaxi Zhang Zebin gao Xiaoxuan Wang Gang Guo Yasenjiang Baikeli Xuepeng Tang Yichao Wang College of Mechanical and Electrical Engineering Xinjiang Agricultural UniversityUrumqi 830052China Key Laboratory of Xinjiang Intelligent Agricultural Equipment Urumqi 830052China

During the harvesting process,rigid materials are prone to causing damage to the cotton stalks,which will increase the risk of stalk breakage.A cotton stalk pulling component that blends stiff and flexible materials was devised to lower the breaking *** cotton stalk pulling component was made up of rollers and flexible belts that pull the stalks using clamping force and the forward speed of the *** influence of various factors in the equipment on the harvesting effect of cotton stalks were analyzed through response surface experiments,and a multiple quadratic regression response surface model with missing pulling rate and breakage rate as response values was *** significant of influencing factors on the breaking rate of cotton stalks are in a descending order as:the angle of cotton stalk pulling,tractor’s forward speed,and the clamping speed of the cotton stalk *** working parameters of the wheel-belt type cotton stalk pulling machine have been optimized using the response surface combination experimental method,and the optimal parameter combination was obtained as:tractor forward speed of 4.5 km/h,cotton stalk pulling angle of 60°,and clamping speed of the cotton stalk pulling component of 349 r/*** results of validation experiments showed that the missing pulling rate of cotton stalks was 5.06%and the breakage rate was 13.12%,indicating a good harvesting effect of the cotton *** model was reasonable and the performance parameters could meet the relevant inspection *** results can provide a reference for further research on the technology of flexible cotton stalk pulling.

关键词： cotton stalk puller wheeled belt flexible cotton stalks pulling verification testing

Utilization of 3D printing technology in hepatopancreatobiliary surgery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第2期25卷 123-134页

作者： Wujiang SHI Jiangang WANG Jianjun gao Xinlei ZOU Qingfu DONG Ziyue HUANG jialin SHENG Canghai GUAN Yi XU Yunfu CUI Xiangyu ZHONG Department of Hepatopancreatobiliary Surgery the Second Affiliated Hospital of Harbin Medical UniversityHarbin150086China Department of General Surgery Tangdu HospitalAir Force Medical UniversityXi’an710032China Key Laboratory of Basic Pharmacology of Ministry of Education Zunyi Medical UniversityZunyi563006China Key Laboratory of Functional and Clinical Translational Medicine Fujian Province UniversityXiamen Medical CollegeXiamen361000China Department of Pathology Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina Jiangsu Province Engineering Research Center of Tumor Targeted Nano Diagnostic and Therapeutic Materials Yancheng Teachers UniversityYancheng224007China Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province Hangzhou310053China Key Laboratory of Gastrointestinal Cancer(Fujian Medical University) Ministry of EducationSchool of Basic Medical SciencesFujian Medical UniversityFuzhou350122China Key Laboratory of Myocardial Ischemia Harbin Medical UniversityMinistry of EducationHarbin150086China

The technology of three-dimensional(3D)printing emerged in the late 1970s and has since undergone considerable development to find numerous applications in mechanical engineering,industrial design,and *** biomedical science,several studies have initially found that 3D printing technology can play an important role in the treatment of diseases in hepatopancreatobiliary *** example,3D printing technology has been applied to create detailed anatomical models of disease organs for preoperative personalized surgical strategies,surgical simulation,intraoperative navigation,medical training,and patient ***,cancer models have been created using 3D printing technology for the research and selection of chemotherapy *** the aim to clarify the development and application of 3D printing technology in hepatopancreatobiliary surgery,we introduce seven common types of 3D printing technology and review the status of research and application of 3D printing technology in the field of hepatopancreatobiliary surgery.

关键词： 3D printing Hepatopancreatobiliary surgery Organ model Cancer model

The Cross-Correlation Relationship Between the Real Estate Industry and High-Quality Economic Development

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems Science and Information 2021年第6期9卷 704-720页

作者： Mengwan ZHANG Fengfeng gao jialin gao Weiguo CHEN Chong Aik LEE School of Economics and Management Beijing University of TechnologyBeijing 100124China School of Economics and Management Tsinghua UniversityBeijing 100084China College of Economics and Management Beijing University of TechnologyBeijing 100124China UCSI University Selangor 56000Malaysia

Based on China’s real estate investment(REI), commercial housing sales(CHS), and GDP data from 2001 to 2020, we studied the dependence, asymmetry, and transmission direction of China’s real estate and economy. Their cross-correlation is demonstrated through the deep crosscorrelation analysis(DCCA) algorithm, multifractal asymmetric detrended cross-correlation analysis(MF-ADCCA) algorithm and DCCA algorithm based on a time delay. Both REI and CHS have persistence with GDP. The real estate industry and economy have asymmetric multifractal ***, real estate and the economy have different trends, and they can affect each other with the same length of time delay. This effect diminishes in a short period of time, and there are unsteady fluctuations in cross-correlation persistence in the long term.

关键词： real estate industry high-quality economic development cross-correlation relationship

Analysis of the Immune Response by Standardized Whole‑Blood Stimulation with Metabolism Modulation

在线全文

学校读者我要写书评

暂无评论

Phenomics 2024年第1期4卷 81-89页

作者： jialin Zhao Xuling Han Helian Li Yali Luo Yan Fang Yun Wang Jian gao Yiran Zhao Jingxuan Han Feng Qian State Key Laboratory of Genetic Engineering ShanghaiPublic Health Clinical CenterHuman PhenomeInstituteZhangjiang Fudan International InnovationCenter and School of Life SciencesFudan UniversityShanghai 200438China Ministry of Education Key Laboratory of ContemporaryAnthropology School of Life SciencesFudan UniversityShanghai 200438China Institute of Immunophenome International Human PhenomeInstitutes(Shanghai)Shanghai 200433China

The immune system defends the body from infection and plays a vital role in a wide range of health *** afects a series of physiological processes,including those linked to the function of human immune *** metabolism modulates immune cell activation and cytokine *** the relationship between metabolism and immune response has important implications for the development of immune-based ***,the deployment of large-scale functional assays to investigate the metabolic regulation of immune response has been limited by the lack of standardized ***,we present a protocol for the analysis of immune response using standardized whole-blood stimulation with metabolism *** immune stimuli including pattern recognition receptor(PRR)ligands and microbial stimuli were incubated with fresh human whole *** metabolic inhibitors were used to modulate metabolic status in the immune *** variable immune responses after metabolic interventions were *** described in detail the main steps involved in the whole-blood stimulation and cytokines quantifcation,namely,collection and treatment of whole blood,preparation of samples and controls,cytokines detection,and stimulation with metabolic *** metabolic inhibitors for anabolic pathways and catabolic pathways exert selective efects on the production of cytokines from immune *** addition to a robust and accurate assessment of immune response in cohort studies,the standardized whole-blood stimulation with metabolic regulation might provide new insights for modulating immunity.

关键词： Immune response Whole blood stimulation Cytokines Immunometabolism