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试论长江修造船企业的承包经营

武汉水运工程学院学报 1988年第2期 111-116页

作者：蒋昌芝武汉水运工程学院工业企业管理教研室

本文对长江修造船企业如何实行承包经营责任制的指导思想,承包方案,实施步骤以及如何进一步发展、完善承包经营责任制等问题,进行了初步地论述和探讨。

关键词：经营机制承包经营 “两权”分离责任成本

《治涝标准》与《城镇内涝防治技术规范》对比及衔接研究

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市政技术 2023年第10期41卷 50-56页

作者：蒋长志长沙市规划勘测设计研究院湖南长沙410000

近年来,我国城市内涝灾害频发。针对内涝治理,水利部及住房和城乡建设部分别颁布了SL 723—2016《治涝标准》和GB 51222—2017《城镇内涝防治技术规范》,但两个标准在应用时存在不匹配的情况,因此从适用范围、设计标准(暴雨重现期、降... 详细信息

近年来,我国城市内涝灾害频发。针对内涝治理,水利部及住房和城乡建设部分别颁布了SL 723—2016《治涝标准》和GB 51222—2017《城镇内涝防治技术规范》,但两个标准在应用时存在不匹配的情况,因此从适用范围、设计标准(暴雨重现期、降雨历时、设计雨型、涝水(积水)排除程度和排除时间)等方面对两个标准进行了对比及衔接研究。研究结果表明:两个标准的衔接难点主要在城镇内河上,为加强两个标准的衔接,建议在城镇地区内河治涝标准与内涝防治标准暴雨重现期保持一致,城镇地区应加快编制长历时暴雨强度公式及短时间间隔设计雨型,加快雨洪模型在内涝防治系统中的应用,将河道纳入内涝防治系统统一规划设计;尚未开展雨洪模型应用的地区,在进行河道排涝设计时,应控制内涝水位超出设计水位的时间小于内涝防治标准中城区允许最大积水时间,内涝防治系统设计应以河道内涝设计水位作为边界条件。

关键词：治涝标准内涝防治标准标准衔接难点标准衔接方法

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MR-H5A环块磨损试验机的改型设计

工程与试验 2010年第B12期50卷 51-53页

作者：姜常志济南试金集团有限公司山东济南250022

介绍了新型MR-H5B环块磨损试验机的结构组成、工作原理及设计特点,其各项技术性能指标均达到了设计要求,外观新颖、功能完善、性能优良,是MR-H5A环块磨损试验机的更新换代产品。

关键词：环块磨损试验机改型设计改进

四球摩擦试验机新型液压加载装置的设计与应用

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工程与试验 2009年第B12期49卷 38-38,74页

作者：姜常志济南试金集团有限公司山东济南250022

介绍了四球摩擦试验机新型液压加载装置的结构组成、工作原理及应用情况,该装置可应用于MR-S10D电液伺服四球摩擦试验机上,取代原来的静压油缸,从而彻底解决原来四球摩擦试验机静压油缸加工的老大难问题。

关键词：四球摩擦试验机液压加载装置静压油缸

The concept and realization of nanostructure fabrication using free-standing metallic wires with rapid thermal annealing

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Science China(Physics,Mechanics & Astronomy) 2015年第4期58卷 84-90页

作者： CUI AJuan HAO TingTing LI Wu Xia SHEN TieHan LIU Zhe jiang QianQing GU changzhi Beijing National Laboratory of Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Joule Physics Laboratory School of CSE College of Science and Technology University of Salford Collaborative Innovation Center of Quantum Matter

Free-standing metallic nanostructures are considered to be highly relevant to many branches of science and technology with applications of three dimensional metallic nanostructures ranging from optical reflectors,actuators,and antenna,to free-standing electrodes,mechanical,optical,and electrical resonators and ***-induced out-of-plane fabrication has emerged as an effective method which uses relaxation of strain-mismatched *** this work,we report a study of the thermal annealing-induced shape modification of free-standing nanostructures,which was achieved by introducing compositional or microstructural nonuniformity to the *** particular gradient,segmented and striped hetero-nanowires were grown by focused-ion-beam-induced chemical vapor deposition,followed by rapid thermal annealing in a N2 *** free-standing nanostructures were produced as a result of the crystalline/grain growth and stress relief.

关键词： thermal annealing strain.induced deformation free-standing three-dimensional nanofabrication

Oligomers from the Synthetic Polymers:Another Potential Iceberg of New Pollutants

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Environment & Health 2023年第4期1卷 228-235页

作者： changzhi Shi Mengjing Wang Zimeng Wang Guangbo Qu Wei jiang Xiangcheng Pan Mingliang Fang Department of Environmental Science and Engineering Fudan UniversityShanghai 200433China School of Energy and Environment and State Key Laboratory of Marine Pollution City University of Hong KongHong Kong 999077China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Laboratory of Pollution Control and Resources Reuse School of the EnvironmentNanjing UniversityNanjing 210023China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200438China Institute of Eco-Chongming Shanghai 202162China

Pollution generated by synthetic polymers,particularly plastics,has become a significant global environmental ***,when compared to polymer-derived products like microplastics,oligomers have not received the attention they *** are by-products of polymer production and intermediates of *** the industrial advancements leading to an exponential increase in the production of new polymers,a majority of oligomers have remained inadequately *** the exposure and toxic effects of polylactic acid oligomers have been documented,the structures and fundamental properties of oligomers derived from most polymers are still poorly *** knowledge gap presents challenges in establishing effective analytical *** the potential of oligomers to act as new pollutants,it is imperative to investigate their environmental behavior,as well as their absorption,distribution,metabolism,excretion,and toxicity(ADMET)*** perspective highlights the research gap concerning oligomers.

关键词： oligomers polymers microplastic new pollutants ADMET

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帽儿山滑雪基地鞘翅目昆虫物种多样性研究

哈尔滨师范大学自然科学学报 2024年第2期40卷 90-94页

作者：朱思勉杨淞月曾宪岐王彩云陈世艳彭一良陈辉蒋长志哈尔滨师范大学

团队于2023年6月7~8日在帽儿山滑雪基地采用拉网样线法进行鞘翅目昆虫多样性的研究.研究过程中采用了拍照、统计、采样以及数据分析的方法.调查共采集了鞘翅目昆虫16科、32属、199只个体.在各类群中,叶甲科(Chrysomelidae),瓢虫科(Cocci... 详细信息

团队于2023年6月7~8日在帽儿山滑雪基地采用拉网样线法进行鞘翅目昆虫多样性的研究.研究过程中采用了拍照、统计、采样以及数据分析的方法.调查共采集了鞘翅目昆虫16科、32属、199只个体.在各类群中,叶甲科(Chrysomelidae),瓢虫科(Coccinellidae)占优势.初步研究了帽儿山滑雪基地鞘翅目昆虫物种多样性与自然因素和人为因素的关系,为完善当地鞘翅目昆虫物种多样性的研究提供了基础资料.

关键词：帽儿山物种多样性鞘翅目

Structure evolution of thiophene-containing conjugated polymer photocatalysts for high-efficiency photocatalytic hydrogen production

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Science China Materials 2022年第2期65卷 422-430页

作者： Sihui Xiang changzhi Han Chang Shu Chong Zhang Jia-Xing jiang Key Laboratory for Macromolecular Science of Shaanxi Province Shaanxi Engineering Laboratory for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710062China

Conjugated polymer photocatalysts have received extensive attention in the field of photocatalytic hydrogen evolution owing to their tunable molecular structures and electronic ***,we developed three donoracceptor(D-A)type thiophene-containing narrow-band-gap conjugated polymers with pyrene as a donor and different fused-thiophene derivatives as acceptors via direct C-H arylation coupling *** was found that the band gap of the polymers can be tuned by adjusting the number of the fused-thiophene *** visible light absorption range can be extended by increasing the number of the thiophene rings,the planar molecular structure for both donor and acceptor units facilitates the charge transmission along the polymer skeleton,and the D-A type polymer structure promotes the dissociation of photo-induced electrons and *** a result,a high photocatalytic hydrogen evolution rate of 33.07 mmol h^(−1)g^(−1) was obtained by PyTP-2 with an optimized molecular structure under visible light irradiation(λ>420 nm)without the aid of Pt *** addition,PyTP-2 also shows a photocatalytic activity for oxygen evolution with an average oxygen evolution rate of 58.37µmol h^(−1)g^(−1).

关键词： conjugated polymer photocatalysis fused-thiophene ring hydrogen evolution oxygen evolution

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飞行器往复式滑翔延时弹道特性

兵工学报 2021年第7期42卷 1372-1380页

作者：杨昌志姜毅牛钰森王璟慧北京理工大学宇航学院北京100081

为进一步延长侦察类巡航导弹的飞行时间,提出一种新型亚音速往复式滑翔盘旋弹道方案,并分析该弹道方案的延时效率及其特性。通过计算流体力学数值风洞获取飞行器的气动参数,采用4阶Adams-Moulton算法数值求解飞行器的弹道控制方程组,对... 详细信息

为进一步延长侦察类巡航导弹的飞行时间,提出一种新型亚音速往复式滑翔盘旋弹道方案,并分析该弹道方案的延时效率及其特性。通过计算流体力学数值风洞获取飞行器的气动参数,采用4阶Adams-Moulton算法数值求解飞行器的弹道控制方程组,对比分析水平盘旋和往复式滑翔盘旋弹道方案的飞行时间差异,进一步分析飞行器的初始速度和初始弹道倾角对往复式滑翔盘旋弹道飞行时间的影响。结果表明:飞行器往复式滑翔延时弹道方案可以延长飞行时间,相对于水平盘旋弹道最优工况延时效率可达到14.79%;在飞行器往复式滑翔盘旋弹道实现的前提下,飞行器的初始速度和初始弹道倾角对往复式滑翔盘旋弹道的飞行时间影响不大。

关键词：飞行器弹道仿真往复式滑翔延时弹道