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海外仓模式下的跨境电商物流运输绿色性优化问题研究——以中美海运为例

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供应链管理 2024年第6期5卷 5-19页

作者：张宝友严长达林梦嫚中国计量大学经济与管理学院浙江杭州310018

文章着眼于中美海外仓模式下物流网络节点间运输过程的绿色优化,建立了运输过程中总成本和总碳排放量最少的双目标优化模型,提出了海运货轮运行过程中的碳排放量计算方法,同时还搭建了海上船舶运输过程中的综合能耗与碳排放量的函数关... 详细信息

文章着眼于中美海外仓模式下物流网络节点间运输过程的绿色优化,建立了运输过程中总成本和总碳排放量最少的双目标优化模型,提出了海运货轮运行过程中的碳排放量计算方法,同时还搭建了海上船舶运输过程中的综合能耗与碳排放量的函数关系。模型采用基于锦标赛选择策略的多目标遗传算法(Non-dominated Sorting Genetic Algorithm-II,NSGA-II)进行求解并通过MATLAB软件实现算例的仿真。结果显示模型中双目标的实现符合多目标优化类问题原则[1],同时运算结果输出了双目标约束下最优路径解集,对发展海外仓模式下的跨境电商绿色物流以及探讨运输工具的综合耗能与碳排放量的关系提供了参考。

关键词：跨境电商物流海外仓模式绿色性优化多目标优化 NSGA-II算法

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基于SWOT分析的西安市长安区草莓产业发展研究

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农业工程 2024年第8期14卷 173-176页

作者：李曼西安职业技术学院陕西西安710077

为探索陕西省西安市长安区草莓产业优质发展的适宜道路,采用SWOT分析法综合、客观地剖析了长安区草莓产业发展状况,探寻制约其发展的主要因素。研究发现,长安区草莓产业具有得天独厚的自然条件和产业基础,但在发展进程中依然面临诸多阻... 详细信息

为探索陕西省西安市长安区草莓产业优质发展的适宜道路,采用SWOT分析法综合、客观地剖析了长安区草莓产业发展状况,探寻制约其发展的主要因素。研究发现,长安区草莓产业具有得天独厚的自然条件和产业基础,但在发展进程中依然面临诸多阻碍因素,存在种植技术应用范围有待提高、种植设施落后、品牌效应差和组织管理落后等问题。在此基础上,从生产技术、品牌创建、配套设施和管理模式等方面提出对策建议,助力长安区草莓产业做大做强。

关键词：草莓产业 SWOT分析特色农业长安区

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Progressive cracking technique for phacoemulsification of superhard cataracts: a case report

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Eye and Vision 2019年第1期6卷 298-302页

作者： Yun-e Zhao Zhangliang Li Pingjun chang Dandan Wang man Hu School of Optometry and Ophthalmology and Eye Hospital Wenzhou Medical University270 West Xueyuan RoadWenzhou 325027ZhejiangChina Key Laboratory of Vision Science Ministry of Health People’s Republic of ChinaWenzhouZhejiangChina

Background:Complete nuclear disassembly of superhard cataracts cannot always be achieved by phaco chop,which is considered one of the best techniques for dealing with hard *** present a phaco chopprogressive cracking technique to divide superhard cataracts *** presentation:We presented a case of cataract with over Grade V nucleus sclerosis and very low density of corneal endothelial cell(812 cells/mm^(2)).By performing the cataract surgery with our phaco chop-progressive cracking technique,the corneal endothelial cells were well protected and the patient’s visual acuity was markedly improved from finger counting at 40 cm to 20/200 the day after surgery without obvious corneal ***:Although an initial learning curve was needed,this phaco chop-progressive cracking technique could be of par.icular benefit to the superhard cataract,especially in patients with low density of corneal endothelial cells.

关键词： Cataract Surgical technique Phacoemulsification

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电解烟气净化系统节能降碳技术应用及研究

轻金属 2024年第3期 52-55页

作者：常玉杰刘竹昕满金涛张宁青铜峡铝业股份有限公司青铜峡铝业分公司宁夏银川750000 沈阳铝镁设计研究院有限公司辽宁沈阳110001

国内早期电解铝烟气净化系统存在反吹风除尘器压差高、氧化铝积料、管道冲刷严重、反应器效率低、系统电耗高等问题。本文通过结合电解铝烟气最新净化技术以及早期净化系统实际问题,以国内某电解铝厂节能改造项目为案例,研究节能改造技... 详细信息

国内早期电解铝烟气净化系统存在反吹风除尘器压差高、氧化铝积料、管道冲刷严重、反应器效率低、系统电耗高等问题。本文通过结合电解铝烟气最新净化技术以及早期净化系统实际问题,以国内某电解铝厂节能改造项目为案例,研究节能改造技术应用难点与节能效果。

关键词：烟气净化反吹风除尘器节能脉冲除尘器

Optimizing the Performance of CsPbI3-Based Perovskite Solar Cells via Doping a ZnO Electron Transport Layer Coupled with Interface Engineering

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Nano-Micro Letters 2019年第4期11卷 605-618页

作者： man Yue Jie Su Peng Zhao Zhenhua Lin Jincheng Zhang Jingjing chang Yue Hao State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology Shaanxi Joint Key Laboratory of GrapheneSchool of MicroelectronicsXidian University2 South Taibai RoadXi’an 710071People’s Republic of China

Interface engineering has been regarded as an effective and noninvasive means to optimize the performance of perovskite solar cells(PSCs).Here,doping engineering of a ZnO electron transport layer(ETL)and CsPbI3/ZnO interface engineering via introduction of an interfacial layer are employed to improve the performances of CsPbI3-based *** results show that when introducing a TiO2 buffer layer while increasing the ZnO layer doping concentration,the open-circuit voltage,power conversion efficiency,and fill factor of the CsPbI3-based PSCs can be improved to 1.31 V,21.06%,and 74.07%,respectively,which are superior to those of PSCs only modified by the TiO2 buffer layer or high-concentration doping of ZnO *** the one hand,the buffer layer relieves the band bending and structural disorder of *** the other hand,the increased doping concentration of the ZnO layer improves the conductivity of the TiO2/ZnO bilayer ETL because of the strong interaction between the TiO2 and ZnO ***,such phenomena are not observed for those of a PCBM/ZnO bilayer ETL because of the weak interlayer interaction of the PCBM/ZnO *** results provide a comprehensive understanding of the CsPbI3/ZnO interface and suggest a guideline to design high-performance PSCs.

关键词： All-inorganic CsPbI3 perovskites Interface engineering Doping ZnO Simulation

Screening of differentially expressed microRNA in ulcerative colitis related colorectal cancer

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Asian Pacific Journal of Tropical Medicine 2013年第12期6卷 972-976页

作者： Yong-GangTan Yong-FengZhang chang-JunGuo MinYang man-YinChen Depar.ment of Gastroenterology The Second People's Hospital of Shenzhen The First Affiliated Hospital of Shenzhen University Institute of Integrated TCM and Western Medicine The Second People's Hospital of Shenzhen The Graduated College Anhui Medical University

Objective:To investigate the differential expression of microRNA(miRNA)in colon between ulcerative colitis(UC)and ulcerative colitis related colorectal cancer(UCRCC).Methods:An UC mouse model was built by dextran sodium sulfate,and an UCRCC mouse model by dextran sodium sulfate and 1,*** were extracted from the colon,purified and hybridized with fluorescence-labeled miRNA oligonucleotide gene ***-time fluorescence quantitative PCR was used to verity the expression variation of *** was employed for the data ***:The up-regulated miRNA in colon cancer included has-miR-194,hasmiR-215,has-miR-93,has-miR-192,has-miR-92a,has-miR-29b,and has-miR-20a(median false discovery rate<5%),while the down-regulated miRNAs were has-miR-1231,has-miR-195,has-miR-143,and has-miR-145(median false discovery rate<5%).Conclusions:Significant differential expression of miRNA was found between the UC mouse and UCRCC mouse,which may be related to the onset,erosion and transfer of colorectal cancer.

关键词： Ulcerative colitis Carcinogenesis Mouse model Colorectal cancer MicroRNA Microarray

ZnS@CdS/HAP复合微球的SILAR法制备及光催化性能

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中国环境科学 2024年第2期44卷 851-858页

作者：杨莉靳晓曼姜晓雪王柯罗玥长安大学水利与环境学院陕西西安710064 长安大学旱区地下水文与生态效应教育部重点实验室陕西西安710064 长安大学水利部旱区生态水文与水安全重点实验室陕西西安710064 中国电建集团西北勘测设计研究院有限公司陕西西安710065

以酵母模板法制备的中空羟基磷灰石(HAP)微球为基底,通过连续离子层吸附反应法(SILAR)制备ZnS@CdS/HAP复合微球,利用XRD、SEM、UV-vis等表征手段分析材料的晶体结构、微观形貌和光吸收能力等,同时结合亚甲基蓝的光催化降解实验探讨复合... 详细信息

以酵母模板法制备的中空羟基磷灰石(HAP)微球为基底,通过连续离子层吸附反应法(SILAR)制备ZnS@CdS/HAP复合微球,利用XRD、SEM、UV-vis等表征手段分析材料的晶体结构、微观形貌和光吸收能力等,同时结合亚甲基蓝的光催化降解实验探讨复合微球的光催化机理.结果表明:利用SILAR法成功实现了ZnS@CdS/HAP复合微球的制备,ZnS@CdS/HAP复合微球的直径约为3~5μm且分散性良好,在可见光区有良好的吸收性能,具有优异的光催化活性,在催化剂添加量1g/L、pH=7、温度为25℃的条件下,对50mL浓度为10mg/L的亚甲基蓝溶液可见光催化100min时去除率高达93%.机理分析证实,ZnS@CdS/HAP光催化可能存在的Z型电荷迁移机制在有效抑制光生载流子复合的同时有效抑制光生腐蚀的发生,提升了ZnS@CdS/HAP复合微球的光催化活性和稳定性.

关键词： CdS ZnS 光腐蚀 HAP 光催化稳定性

Dual cycloid gear mechanism for automobile safety pretensioners

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Journal of Central South University 2012年第2期19卷 365-373页

作者： SHIN Joong-ho KIM chang-hyun YUN Pyeong-hwa KWON Soon-man Depar.ment of Mechanical Design and manufacturing Changwon National University

The most conventional vehicle pretensioner system consists of an internal gear pair with involute teeth. However, it has been well known that the corresponding gear pairs are relatively weak under the situation of impact loadings. To improve this phenomenon, a new pretensioning gear system with cycloid teeth rather than the involute ones was proposed, and dual cycloidal gear mechanisms were designed for satisfying geometric constraints and dynamic loading conditions. The simulations of the prototypes were conducted by LS-DYNA program and the experiments for a prototype were performed for a dynamic model with impact loading devices. The results show that the better operation and the smoother motion are confirmed in the proposed cycloidal gear system rather than the conventional one without interferences between gear teeth under the impact of a crash.

关键词： seat belt pretensioner internal gear pairs involute gear dual cycloid gear

New conditions for pattern solutions of a Brusselator model

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Applied Mathematics(A Journal of Chinese Universities) 2019年第4期34卷 460-467页

作者： TONG chang-qing LIN Jia-yun MA man-jun TAO Ji-cheng Depar.ment of mathematics Hangzhou Dianzi UniversityHangzhou 310018China Depar.ment of Mathematics Zhejiang Sci-tech UniversityHangzhou 310018China Depar.ment of mathematics College of ScienceChina Jiliang UniversityHangzhou 310018China

This paper is devoted to establishing a critical value of the concentration of one intermediary reactant which determines whether pattern solutions of a class of Brusselator models exist or *** introduce a new method to compute the degree index of the related linear operator so that the obtained sufficient conditions are easier to verify than those in the known *** proofs mainly rely on Leray-Schauder degree theory,implicit function theorem and analytical techniques.

关键词： Brusselator model pattern solution degree index theory