A Study on Improvement for Logistics Management of Company G

随着全球经济复苏，市场竞争的日益加剧。物流管理的重要性正越来越受到重视，降低物流成本提高物流服务水平已经成为现代物流管理的焦点问题。 对于工业气体企业来说，因其产品的特殊性，其物流呈现出高成本，高风险的特点。加之没有成熟的第三方物流企业，物流成本成为企业生存发展的瓶颈。气体企业如何在严酷的竞争中立于不败之地，改变落后的物流管理，如何突破这个瓶颈，一直是近几年同行研究的课题。 本文提出从物流成本和服务水平相平衡的角度改进物流管理水平，将GPS和GOLD系统应用及完善物流管理系统。实现在降低企业成本的同时提高客户服务水平。这正是进行物流管理改进的意义所在。 本文主要基于物流管理能力评价的基本...With the recovery of the global economy, the market competition is becoming increasingly fierce. When more and more attention has been drawn to logistic management, how to improve logistic service while lowering the cost has now become the focus of modern logistic management. As for an industrial gas enterprise, due to its products’ specialty, the logistic section is featured as highly costly and...学位：工程硕士院系专业：管理学院管理科学系_物流工程学号：X200715305

常备借贷便利与逆回购操作对货币市场利率的影响

本文基于我国平均法定准备金制度,从理论模型和实证结果上分析了常备借贷便利与央行逆回购操作对货币市场利率的影响。研究发现:(1)由不同期限,按其投放数量作为权重得出的逆回购加权利率的上升,会对货币市场利率产生正效应的影响;(2)银行局部流动性水平与开展逆回购操作概率的变化,使常备借贷便利与逆回购加权利率的调整对货币市场利率的影响具有时变特征;(3)逆回购加权利率对货币市场利率的影响在50%左右,常备借贷便利的影响弱于逆回购,但随着常备借贷便利申请数量的上升,其影响不断增强;(4)与银行间质押式回购加权利率和上海银行间同业拆放利率相比,隔夜存款类机构质押式回购加权利率对货币政策的传导最顺畅,因此可作为央行利率操作目标。国家社科基金重点项目“宏观审慎政策和货币政策及相关治理安排”(12AJY011);;国家自然科学基金项目“巨灾风险的宏观经济动态效应及防范机制研究”(71603243)经费资

铁磁性Co-Fe 记忆合金的马氏体相变特性及形状记忆效应

Microstructure, martensitic transformation temperature and shape memory effect of Co-Fe alloys were investigated by optical observation, X-ray diffraction, DSC and bending tests. Results show that the shape memory effect of Co-Fe alloys is associated with the fcc/hcp martensitic transformation. When Fe content is higher than 5.65wt%, the microstructure exhibits single gamma phase with fcc structure. When Fe content is lower than 5.6wt%, the microstructure consists of gamma phase and epsilon martensitic phase with hcp structure. The martensitic transformation temperatures of Co-xFe alloys are almost linearly decreased with increasing Fe content, following the relationship: M(s) (degrees C) = 417-69.97x(Fe%). The highest recoverable strain of Co-4Fe (wt%) alloy is 0.86%. It is believed that Co-Fe alloys will exhibit better shape memory effect after proper heat treatment and shape memory training

Analysis on the Appropriateness of Aggregate Financing of the Economy as an Intermediate Target

本文采用2002~2012年季度数据考察3个备选的金融宏观中介目标——社会融资规模、人民币贷款和广义货币M_2。图形直观分析、脉冲响应分析以及协整关系分析均表明:M_2不是一个理想的中介目标;社会融资规模在3个中介目标中表现最好,建议我国以社会融资规模作为金融宏观调控的中介目标;金融宏观调控政策对实体经济和物价指数的影响时滞分别为5个季度和2~3年。政策时滞对制定前瞻性政策具有一定指导意义。The paper analyzes three optional financial intermediate targets-aggregate financing of the economy,RMB banking loan,and broad money M_2,using data from 2002 to June 2012.Three approaches of graph analysis,impulse responses,and co-integretion analysis give rise to the same conclusions.M_2 is not a good intermediate target.Aggregate financing of the economy is the best one according to its relationship with both the real economy and the price index in the short and long run.We suggest adopting aggregate financing of the economy as the financial intermediate target in China.The lags of intermediate targets to the real economy and the price index are respectively 5 seasons,and 2 to 3 years.The concrete policy lags could be instructive to making forward-looking policies.教育部人文社科研究一般项目“开放经济下中国货币政策规则理论和实证研究”(10YJA790238); 国家社科基金重点项目“宏观审慎政策和货币政策以及相关治理安排”(12AJY011)的资

植物分类学于中药资源学的意义:《中国药典》植物药材基源物种科属范畴变动考证及学名规范化研究

药用植物是中药资源的主要组成部分,在中药材的使用过程中,利用植物分类学方法对药用植物进行鉴定、亲缘关系及演化规律研究,有助于中药资源的系统认知、合理开发利用以及科学保护.本文参考国内外权威植物名录数据库、植物分类系统,以及最新的分子系统研究成果,对2020年版《中国药典》(一部)收载的植物药材基源物种科属范畴变动进行了系统考证,并对相关物种的拉丁学名和中文名进行了梳理,旨在推动植物分类学与中药资源学进一步学科交叉,维持药典的科学性和先进性,促进中医药行业的科学发展与国际影响力的提升

可拆卸金属热电离真空裸规管

本实用新型主要涉及金属热电离真空裸规管，尤其涉及金属热电离真空裸规管的电极结构。一种可拆卸金属热电离真空裸规管，包括有真空密封法兰，法兰中心部位设有用绝缘材料密封的真空引出电极，灯丝组件，其主要特点是还包括了灯丝组件固装于灯丝绝缘板上，将灯丝部分设计为独立自支撑组件，其灯丝引出电极穿过灯丝绝缘板与真空引出电极对接。本实用新型通过灯丝组件与密封组件的可拆卸，实现了灯丝简易更换和真空密封组件的再次利用，极大的节约了生产者的生产资料和成本，也节约了用户费用和成本

Martensitic Transformation Behavior and Shape Memory Effect of Co-Fe Ferromagnetic Shape Memory Alloys

［中文文摘］采用光学显微镜、X射线衍射、DSC、弯曲试验等方法研究了Co-Fe合金的微观组织结构、马氏体相变特性及形状记忆效应。结果表明:Co-Fe合金的记忆效应源自合金中的fcc/hcp马氏体相变;Co-xFe(x=2%~6%,质量分数)合金在x≥5.65%时为单一fcc结构的γ相,在x≤5.6时为含有ε马氏体相和γ相的双相组织;该合金的马氏体相变温度随着Fe含量的增加而线性降低,之间关系为:Ms(℃)=417-69.97x(Fe%);Co-4Fe合金的形状记忆可回复应变最大为0.86%,相信通过进一步的热处理和记忆训练,该合金会表现出更好的记忆效应。［英文文摘］Microstructure, martensitic transformation temperature and shape memory effect of Co-Fe alloys were investigated by optical observation, X-ray diffraction, DSC and bending tests. Results show that the shape memory effect of Co-Fe alloys is associated with the fcc/hcp martensitic transformation. When Fe content is higher than 5.65wt%, the microstructure exhibits single γ phase with fcc structure.When Fe content is lower than 5.6wt%, the microstructure consists of γ phase and ε martensitic phase with hcp structure. The martensitic transformation temperatures of Co-xFe alloys are almost linearly decreased with increasing Fe content, following the relationship: Ms (℃) = 417-69.97x(Fe%). The highest recoverable strain of Co-4Fe (wt%) alloy is 0.86%. It is believed that Co-Fe alloys will exhibit better shape memory effect after proper heat treatment and shape memory training.国家自然科学基金(50771086); 福建省新世纪优秀人才支持计划项目资助

Study on Producing Porous Corn Starch

以玉米淀粉为原料,研究了玉米多孔淀粉制备过程中各种因素对产物成孔效果的影响,探讨了酶解成孔的机理,并对制备工艺进行了初步优化.在糖化酶和耐高温α-淀粉酶混合成的复合酶作用下,玉米淀粉水解制备玉米多孔淀粉的最佳工艺为:加酶量为按照理论水解55%淀粉的30倍加入量,糖化酶与耐高温α-淀粉酶的配比7∶1,反应体系pH值5.6,酶解温度60℃,淀粉浓度60%,反应时间20h.反应后玉米淀粉的吸油率由16.15%提高到了47.59%.This paper aims to have a discussion about the effect of the different conditions on the porosity of corn porous starch,and the possible mechanism.Optimal corn porous starch processing conditions are determined as follows: complex enzyme that could theoretically hydrolyze 30 times of 55% of the added raw starch;ratio of α-1,4-glucanglucohydrolase to α-amylase 7:1;pH 5.6;temperature 60℃;starch solid concentratio n(w/v) 60%;reation time 20h.The result shows that after the reaction the oil adsorption ratio of corn starch was increased from 16.15% to 47.59%

单电离态Kr原子强跃迁能级振子强度的研究

阐述了用束 箔方法通过测量单电离态Kr原子强跃迁谱线的能级寿命来确定振子强度f 值的方法 ,并对确定出的强跃迁谱线的能级吸收振子强度进行简要讨论

单电离态Kr原子的能级寿命的研究

在 12 0keV的能量下 ,用束 -箔方法研究了跃迁强谱线的单电离态Kr原子激发态能级5p4 D07/2 ,5p4 D05/2 的寿命。并与理论和其它实验结果做了比较和讨论