检索结果-南通市图书馆

Multiresponsive,easy-reversible,and dual-visual Pt(Ⅱ)salt nanostructures for advanced anti-counterfeiting application

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

Nano Research 2024年第1期17卷 372-381页

作者： Zhen Su§ depeng li§ lixin Zhang Si Tian Yuhong Su Xiaoyun Hu Duan Xiong Qingqing Guan Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education College of Chemical EngineeringXinjiang UniversityUrumqi 830017China

Smart materials that integrate multi-stimuli response,full reversibility,and dual-visual read-out channel are highly desired for anticounterfeiting and information encryption ***,we developed a multiresponsive perchlorate terpyridyl Pt(Ⅱ)nano complex which could undergo fully reversible conversion between three forms stimulated by water or formaldehyde molecule due to the extent of Pt–Pt ***,a dual-visual channel,i.e.,the colorimetric channel changed from yellow to orange or red and the corresponding luminescent channel from orange to orange-red or red,has also been *** weak and equivalent strength of ion-dipole interaction and hydrogen bond that generated between formaldehyde/water and Pt(II)salt result in the easy-control reversibility between the three ***,by introducing different polymer matrices,1Cl·ClO_(4)@PMMA(1Cl·ClO_(4):[Pt(tpy)Cl]·ClO4,tpy:2,2':6',2''-terpyridine),PMMA:poly(methyl methacrylate))and 1Cl·ClO4@PVA(PVA:polyvinyl alcohol)are successfully constructed,which exhibit different reversible behaviors since the PMMA and PVA matrix exert different influences on the strength of *** smart Pt(II)salt nanostructures present great potential for high-security-level anticounterfeiting application.

关键词： Pt(II)complex multiresponse reversibility anticounterfeiting information encryption

Ginkgo biloba extract alleviates fatty liver hemorrhagic syndrome in laying hens via reshaping gut microbiota

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

Journal of Animal Science and Biotechnology 2024年第1期15卷 277-294页

作者： Xinyue Yang depeng li Meihong Zhang Yuqing Feng Xiaolu Jin Dan liu Yuming Guo Yongfei Hu State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Background Ginkgo biloba extract(GBE)is evidenced to be effective in the prevention and alleviation of metabolic disorders,including obesity,diabetes and fatty liver ***,the role of GBE in alleviating fatty liver hemorrhagic syndrome(FLHS)in laying hens and the underlying mechanisms remain to be ***,we investigated the effects of GBE on relieving FLHS with an emphasis on the modulatory role of GBE in chicken gut *** The results showed that GBE treatment ameliorated biochemical blood indicators in high-fat diet(HFD)-induced FLHS laying hen model by decreasing the levels of TG,TC,ALT and *** lipid accumulation and pathological score of liver were also relieved after GBE ***,GBE treatment enhanced the antioxidant activity of liver and serum by increasing GSH,SOD,T-AOC,GSH-PX and reducing MDA,and downregulated the expression of genes related to lipid synthesis(FAS,LXRα,GPAT1,PPARγand Ch REBP1)and inflammatory cytokines(TNF-α,IL-6,TLR4 and NF-κB)in the *** profiling analysis revealed that GBE treatment reshaped the HFD-perturbed gut microbiota,particularly elevated the abundance of Megasphaera in the ***,targeted metabolomic analysis of SCFAs revealed that GBE treatment significantly promoted the production of total SCFAs,acetate and propionate,which were positively correlated with the GBE-enriched gut ***,we confirmed that the GBE-altered gut microbiota was sufficient to alleviate FLHS by fecal microbiota transplantation(FMT).Conclusions We provided evidence that GBE alleviated FLHS in HFD-induced laying hens through reshaping the composition of gut *** findings shed light on mechanism underlying the anti-FLHS efficacy of GBE and lay foundations for future use of GBE as additive to prevent and control FLHS in laying hen industry.

关键词： Antioxidation Fecal microbiota transplantation FLHS Ginkgo biloba extract Inflammation Megasphaera

An Enterococcus faecalis isolate harboring both aerobic and anaerobic uric acid metabolic pathways alleviates hyperuricemia in mice

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年

作者： depeng li Xinyue Yang A La Teng Zhu La Meihong Zhang Zhengtian Lü Yuqing Feng Dan liu Yuming Guo Yongfei Hu State Key Laboratory of Animal Nutrition and Feeding， College of Animal Science and Technology， China Agricultural University

Probiotics have been demonstrated to be effective and safe for hyperuricemia (HUA) and gout treatment. Hence， identifying microbes with high uric acid- or purine-metabolizing ability is highly important. Due to the high load of uric acid in chicken feces， we hypothesized that the chicken gut would be an excellent source for new uric acid or purine-metabolizing microbes. In this study， we examined chicken gut contents to isolate an Enterococcus faecalis strain (designated CML390) that displayed high uric acid-degrading ability. In vitro experiments indicated that E. faecalis CML390 could effectively metabolize uric acid under both aerobic and anaerobic conditions， and the richer the nutrients， the higher the rate of uric acid degradation. By integrating genomics， transcriptomics， and metabolomics analyses， we revealed two pathways involved in aerobic and anaerobic uric acid degradation， respectively， in this isolate. E. faecalis CML390 relies on oxygen to metabolize uric acid into substances such as allantoin under aerobic conditions， while it also harbors a conserved uric acid-inducible gene cluster for anaerobic uric acid metabolism. An in vivo experiment showed that gavage with live E. faecalis CML390 in a mouse model of HUA (established using a combination of uric acid and potassium oxonate) significantly reduced serum uric acid levels and alleviated HUA. Our findings contribute to the exploration of the pathways and mechanisms of uric acid metabolism in intestinal microorganisms and provide a candidate probiotic for the treatment of HUA and gout.

关键词：

《国际中文教育学术文摘》的建设动因与实现路径

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

贵州师范大学学报（社会科学版） 2024年第1期 76-84页

作者：袁礼李德鹏教育部中外语言交流与合作中心北京100088 苏州科技大学文学院江苏苏州215009

国际中文教育的学术文摘刊物建设是提升国际中文教师教学与科研能力的重要途径,对国际中文教育相关学术期刊有推广和引导作用。此类文摘刊物有助于弥补当前国际中文教育论文转载数量的不足,引领国际中文教育论文的研究方向,提升“教育... 详细信息

国际中文教育的学术文摘刊物建设是提升国际中文教师教学与科研能力的重要途径,对国际中文教育相关学术期刊有推广和引导作用。此类文摘刊物有助于弥补当前国际中文教育论文转载数量的不足,引领国际中文教育论文的研究方向,提升“教育部中外语言交流合作中心学术组织计划(期刊)”的办刊成效。《国际中文教育学术文摘》的实现路径主要包括栏目设计应突出学科性、摘编方式应体现实用性、选文标准应具备技术性、刊期安排应兼顾容量和时效、建设主体应保持权责一致性。

关键词：国际中文教育学术文摘建设动因实现路径

知识存量、知识流量与企业创新绩效--基于武汉东湖高新区的实证研究

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

全国流通经济 2024年第13期 110-113页

作者：严庆李德鹏湖北工业大学经济与管理学院湖北武汉430070 武汉理工大学管理学院湖北武汉430070

企业创新依赖于知识,然而存在于知识网络中不同形态的知识对企业创新绩效的作用尚未充分阐明。本文从知识形态角度以东湖高新区高新技术企业为研究对象,构建企业知识流量、知识存量与创新绩效的概念模型,探索不同形态知识间的作用关系... 详细信息

企业创新依赖于知识,然而存在于知识网络中不同形态的知识对企业创新绩效的作用尚未充分阐明。本文从知识形态角度以东湖高新区高新技术企业为研究对象,构建企业知识流量、知识存量与创新绩效的概念模型,探索不同形态知识间的作用关系以及与创新绩效的作用机理。结果显示:(1)知识存量与企业创新绩效呈倒U型关系;(2)内部自主研发形成的知识流量和外部协同研发形成的知识流量均与企业创新绩效呈正相关关系;(3)知识存量在自主研发形成的知识流量与创新绩效间起到正向调节作用,而对协同创新形成的知识流量与企业创新绩效起到负向调节作用。基于此,本文从企业研发策略、知识获取途径和形态动态转化角度提出相关建议。

关键词：知识流量知识存量创新绩效协同创新自主研发

Effect of ultrasonic vibration on finished quality in ultrasonic vibration assisted micromilling of Inconel718

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2021年第6期34卷 209-219页

作者： Bin FANG Zhonghang YUAN depeng li liying GAO School of Mechanical and Automotive Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China

Inconel718 was machined with the traditional micromilling(TMM)and ultrasonic vibration assisted micromilling(UVAMM)with the different technology parameters,whose surface quality and burrs formation were *** results show that TMM often forms pits,bumps and gullies in the size effect *** effectively improves the surface quality compared with *** surface defects are significantly reduced with the increase of feed per tooth(fz).When fz exceeds 4 lm,the effect of ultrasonic vibration on the surface quality is no longer *** minimum burr size on the down milling side and the up milling side are 50.23 lm and 36.57 lm,*** feasibility of vibration cutting in improving surface quality and suppressing burr size was *** effectively suppresses the formation of built-up edge,which can significantly improve the micromilling *** cutting force is obtained through simulation and *** are agreement in the change *** finite element simulation can be used to predict the cutting *** with TMM,feeding force(Fx),radial force(Fy)and axial force(Fz)of UVAMM decrease by 7.6%,11.5%and 1.3%,respectively.

关键词： Burr Cutting force Simulation Surface quality Ultrasonic vibration assisted micromilling

L^p(p > 1) Solutions of BSDEs with Generators Satisfying Some Non-uniform Conditions in t and ω

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2020年第3期41卷 479-494页

作者： Yajun liU depeng li Shengjun FAN School of Mathematics China University of Mining and TechnologyXuzhou 221116JiangsuChina School of Mathematics China University of Mining and TechnologyXuzhou 221116China

This paper is devoted to the L^p(p > 1) solutions of one-dimensional backward stochastic differential equations(BSDEs for short) with general time intervals and generators satisfying some non-uniform conditions in t and ω. An existence and uniqueness result,a comparison theorem and an existence result for the minimal solutions are respectively obtained, which considerably improve some known works. Some classical techniques used to deal with the existence and uniqueness of L^p(p > 1) solutions of BSDEs with lipschitz or linear-growth generators are also developed in this paper.

关键词： Backward stochastic differential equation Existence and uniqueness Comparison theorem Minimal solution Non-uniform condition in(t ω)

A Survey of Language-Based Approaches to Cyber-Physical and Embedded System Development

在线全文

学校读者我要写书评

暂无评论

Tsinghua Science and Technology 2015年第2期20卷 130-141页

作者： Paul Soulier depeng li John R. Williams University of Hawaii Massachusetts Institute of Technology(MIT)

As computers continue to advance, they are becoming more capable of sensing, interacting, and communicating with the physical and cyber world. Medical devices, electronic braking systems in automotive applications, and industrial control systems are examples of the many Cyber-Physical Systems （CPS） that utilize these computing capabilities. Given the potential consequences of software related failures in such systems, a high degree of safety, security, and reliability is often required. Programming languages are important tools used by programmers to develop CPS. They provide a programmer with the ability to transform designs into machine code. Of equal importance is their ability to detect and avoid programming mistakes. The development of CPS has predominantly been accomplished using the C programming language. Although C is a powerful language, it lacks features present in other languages that facilitate the development of reliable systems. This has prompted research into language-based alternatives for improving program quality through the use of programming languages. This paper presents an overview of the characteristics of embedded and cyber-physical systems and the associated requirements imposed on programming languages. This is followed by a survey of relevant research into language- based methods for creating safe, reliable, and robust software for CPS.

关键词： cyber-physical systems embedded systems programming languages type systems

在线全文

学校读者我要写书评

暂无评论

医院营养代谢实验室管理的探索与实践

中国卫生标准管理 2024年第13期15卷 65-68页

作者：李德鹏张玮阿丽玛内蒙古自治区人民医院医学工程处内蒙古呼和浩特010017 内蒙古自治区人民医院健康管理中心内蒙古呼和浩特010017 内蒙古自治区人民医院临床营养中心内蒙古呼和浩特010017

为满足建立适合我国整体医疗需求的现代化临床营养工作体系的需求,需要建立并有效运行营养代谢实验室,加强营养诊疗技术的不断改进和提升。通过调查我国医院营养学科及代谢实验室建设现状,明确目前临床营养诊疗流程的实际需求,分析目前... 详细信息

为满足建立适合我国整体医疗需求的现代化临床营养工作体系的需求,需要建立并有效运行营养代谢实验室,加强营养诊疗技术的不断改进和提升。通过调查我国医院营养学科及代谢实验室建设现状,明确目前临床营养诊疗流程的实际需求,分析目前营养代谢实验室运行中存在问题和优势。开展从实验室的人员、实验室设备管理、实验室业务开展、实验室的管理制度及实验室的场地管理等5个方面的剖析和探讨,找寻相应的具体改进措施。从实验室对临床实际业务的影响出发,有效提高实验室的创新建设和管理,完善营养诊疗路径,为持续改进医疗质量提供实践依据。

关键词：营养诊疗规范化管理实验室运行营养评估诊疗技术改进实验室管理