Study of the Proper Scale of China's Foreign Investment and Economic Development

改革开放以来，随着中国经济的发展，外商投资开始大量流入中国。近年来，我国实际利用外资总额一直居于世界前列，2005年我国实际利用外资638.05亿美元，在发展中国家居第一位。随着利用外资规模的扩大，外商投资对我国经济发展的负面影响也开始凸显，外商投资规模是否过度的问题成为国内学者关注的焦点。本文通过对我国利用外商投资的现状分析，建立了外资适度规模的三个子系统模型：外资必要规模，外资吸收规模和外资安全规模。就这三个模型对我国利用外商投资的实践进行了实证分析。外资必要规模的实证分析表明当前我国利用外资的规模在理论上已经超出了我国利用外资的必要规模，即我国利用外资的负效应较之正效应已经开始凸现；外资...Since economic reform and openness, with economic development in China, large quantity of foreign capital flow in. So far China’s utilized foreign capital ranked in the front position of the globe and first in the developing countries at US dollar 638.05. With the expansion of foreign capital scale, the negative effect of foreign capital protrudes. Whether the scale of foreign capital is excessive...学位：经济学硕士院系专业：经济学院经济系_西方经济学学号：20040901

Study on Exergy Analysis of Mine Air-conditioner Using Ice Slurry for Latent Heat Transportation

针对冰浆潜热输送矿井空调系统进行了设计，提出存在峰谷电价下的井上、井下设计方案。以淮南某矿井为例，根据冰浆潜热输送深井空调功能特性，将系统分为一次侧循环系统和二次侧循环系统，采用系统火用平衡分析法，代替传统的能量平衡分析法，得出了冰浆潜热矿井空调系统的火用损失分布

基于双岛结构的多晶硅纳米薄膜压力传感器

为解决传统半导体压力传感器温度特性差、非线性度高等问题,设计一种基于双岛结构的多晶硅纳米薄膜压力传感器。利用有限元分析软件分析硅膜结构的应力分布规律,确定力敏电阻的最佳布局,进一步提高了传感器的灵敏度。这种压力传感器兼具温度特性好、灵敏度高、线性度好等综合性能。福建省科技厅引导性(重点)项目(2017H032);;莆田学院激光精密加工工程技术研究中心开放基金项目(2016JZA014

Analysis on 6 Cases of Adverse Drug Reactions Induced by Ammonium Chloride and Licoricl Oral Solution

目的：探讨氯化铵甘草口服溶液不良反应的特点,为临床安全用药提供参考。方法：对本院2014年1月-2016年3月上报的6例氯化铵甘草口服溶液不良反应监测报告进行回顾性分析,对6例患者的年龄、性别、原患疾病,药物使用情况,ADR发生时间、临床表现、治疗与转归,ADR的类型与关联性评价等项目进行统计分析。结果：氯化铵甘草口服溶液不良反应多发生于老年患者;发生时间主要在用药8h内;以累及系统呼吸系统和皮肤为主;6例患者均痊愈,未出现后遗症或导致死亡。6例ADR中一般的ADR 2例,新的一般的ADR 2例,新的严重ADR 2例;关联性评价为可能4例,很可能2例。结论：临床上应重视氯化铵甘草口服溶液的不良反应,应密切观察患者,保证用药安全。Objective： To explore the characteristics of the adverse drug reactions （ADRs） induced by ammonium chloride and licoricl oral solution, to provide the reference for clinical safe medication and prevent adverse reaction. Methods：Restrospectively analysis were used on the ADRs reports of 6 cases of ammonium chloride and licoricl oral solution form January 2014 to March 2016 in our hospital. The application of drug, the age and gender distribution of patients ,occurrence time of ADRs, clinical manifestations ; treatment and outcome ; types and relevance evaluation of ADRs were analyzed respectively. Results：ADRs were mostly happened in the senile patients 8h after the medication. The clinical manifestations were respiratory and skins. 6 patients were all recovered, no occurrence sequel or lead to death. There were 4 cases of new ADR ,4 cases of commom ADR and 2 cases of severe ADR, 4 cases of possible relevance and 2 cases of probale relevance. Conclusion：The ADRs caused by ammonium chloride and licoricl oral solution should be pay more attention to, observed the changes closely to ensure clinical safe mediation

用于测量J偶合常数的同时多层选择性恒时J分解谱的方法（英文）

标量偶合是核磁共振（NMR）波谱的一个重要参数.其中氢-氢偶合能提供关于分子结构的有用信息.但是,在复杂的偶合网络中解析出氢-氢偶合常数(JH-H)较为困难.本文提出了一种基于空间编码选择性恒时演化的测量JH-H的方法,利用一次实验就能解析分子中所有氢核的偶合网络,并测量JH-H.该方法被称为同时多层选择性恒时J分解谱（SMS-SECTJRES）.它结合空间编码梯度和选择性恒时演化,并利用平面回波谱成像（EPSI）采样模块,从不同的空间位置提取出对应不同氢核偶合网络的J分解谱,促进了NMR技术在分子结构解析中的进一步应用.the National Natural Science Foundation of China(U1732158 and U1632274)the Key Science and Technique Project of Fujian Province(2018Y0077)the Natural Science Foundation of Guangdong Province(2018A030313794)the Fundamental Research Funds for the Central Universities(20720170036

Application of Micro multimedia Demonstrating System in Experiments of Botanical Biology

介绍显微多媒体教学系统的组成、功能及其在植物生物学实验教学中的应用。该系统的应用 ,开拓了学生由感性认识上升到理性认识的新途径 ,极大地增强了实验教学过程的生动性和灵活性 ,明显地提高了教学效率和质量。The micro multimedia demonstrating system is composed of biological microscope, colour video camera, computer and LCD projector. This system, which combines microtechnique with the advanced multimedia technique, makes the teaching of experiments of botanical biology not only very audio visual and lively but also more rapid and effective.国家基础科学生物人才基地专

Preparation and permeation characteristics of novel PVA/APTEOS hybrid membranes

采用溶胶-凝胶法制备了聚乙烯醇(PVA)/γ-氨丙基三乙氧基硅氧烷(APTEOS)有机/无机杂化膜。用FTIR和XRD对杂化膜进行了表征。测定了膜在乙醇/水溶液中的溶胀行为。考察了杂化膜对85%(质量)的乙醇/水溶液的渗透蒸发分离性能。加入APTEOS降低了PVA的结晶度,有效控制了膜的溶胀,呈现出优良的分离性能。随着APTEOS含量的增加,杂化膜的选择性急剧增加,在5.0%(质量)时达到最大值;同时膜的渗透通量迅速增加。解决了PVA膜trade-off效应。Novel organic-inorganic hybrid membranes were prepared through sol-gel reaction of poly(vinyl alcohol)(PVA)with γ-aminopropyl-triethoxysilane(APTEOS).The resulting membranes were characterized with Fourier transform infrared spectroscopy and wide-angle X-ray diffraction.The swelling degree of PVA and PVA/APTEOS hybrid membranes in water/ethanol mixture was determined.The pervaporation performance was investigated by separation of water/ethanol mixture at 50℃.The effect of APTEOS content on the pervaporation performance was studied.The decrease in swelling degree with increasing APTEOS content was due to the formation of hydrogen and covalent bonds in the membrane matrix.The crystalline region of PVA decreased with increasing APTEOS content.The separation factor for water increased,and then decreased when APTEOS content was more than 5.0%(mass).The hybrid membrane containing 5.0%(mass) APTEOS exhibited the highest separation factor.However the permeation rate increased remarkably with increasing APTEOS content.The trade-off relation of the PVA membrane was solved,and the PVA/APTEOS hybrid membranes showed high pervaporation properties.国家自然科学基金项目(50573063);; 高等学校博士点专项基金(20050384013)~

Molecular Simulation of Polyamide-imide

用COMPASS分子力场对一种具有特殊结构的聚酰胺酰亚胺(PAI)分子体系进行了分子模拟。先运用密度泛函理论(dfT)方法(PW 91)研究了PAI单体的几何结构和电子结构,模拟结果表明,单体结构非平面。然后建立了非晶型的PAI周期性结构,运用分子动力学和分子力学法对其热性能、溶解性能和机械性能进行了研究。One polyamide-imide with typical structure was simulated using the COMPASS force field in this work.The geometry and electronic structure of the repeating unit of the polyamide-imide were first studied in terms of DFT theory.The results show that the polyamide-imide being studied is not in a plane.The amorphous model of polyamide-imide was then generated under periodic boundary conditions,its thermodynamic properties,solubility parameters and mechanic properties were thus studied.国家自然科学基金(50573063);高等学校博士点专项基金(20050384013

电泳/质谱技术研究鲨鱼肝铁蛋白及亚基多聚体特性

改良鲨鱼肝铁蛋白(liver ferritin ofsphyrna zygaena,SZLF)分离技术,并结合非变性梯度聚丙烯酰胺凝胶电泳(NGPAGE)制备质谱纯SZLF,以维系铁蛋白分子和它的亚基之间的作用类型,供研究铁蛋白结构与功能。实验结果表明,SZLF由分子量约为20kDa的单类型亚基组成。SZLF和它的亚基均组成不同的聚合体。聚合体类型和聚合数目与铁蛋白亚基和分离介质有关。MALDI-TO F质谱仪的激光和基质协同能有效解吸SZLF中的亚基成为准分子离子,并供质量分析,其亚基特征质谱峰m/z值分别为10889.35和22030.45,确定为带双电荷[M+2H]2+和单电荷[M+H]+的SZLF亚基分子量。SDS-PAGE和变性IEF技术研究指出,形成不同聚合态的SZLF,其分子之间的相互作用强度高于SZLF亚基自身,难以通过MALDI-TOF质谱技术测定其亚基的结构信息。尽管SZLF由单类型亚基组成,但它能通过聚合体和自身亚基之间的相互作用差异性发挥极其重要的生理功能

多环节促进的通信电子电路课程教学改革实践

基于多环节促进的教学方法是作者多年来进行通信电子电路课程教学中的一些实践经验。这种教学方式在课堂中引入Multisim软件仿真、电路演示等教学手段，并在实践教学环节采取实验教学与课程设计相结合的方式；而课程考核则是采取了平时考核与期末双选考核相结合的灵活评价方式。教学过程中组织的讨论课，不仅让学生更好地掌握重难点知识，还培养了学生的团队协作能力。整个教学过程充分调动了学生学习的主动性与积极性，培养了他们发现问题、分析问题与解决问题的能力，并在培养学生开展科研工作的能力上取得了良好的效果。广西高校科学技术研究项目（项目编号：2013YB193）;华侨大学2013教改项目之计算机编程类课程的全英教