Research on Optimization of Financing Strategies for Relocation of Chongqing iron and steel group for Environmental Protection

近年来，国内经济发展势头良好，随着国家经济刺激计划的实施，大量基础设施建设工程的实施提高了对钢铁产品的需求，中国粗钢产量连续13年居世界第一，与此同时国家产业升级规划明确指出了需完成我国企业产品结构的升级，这为企业的升级与转型提供了契机，我国钢铁产业快速发展，近十年来粗钢产量保持较快增长，2011年粗钢产量达68388.3万吨。但是，钢铁产业长期粗放发展积累的矛盾日益突出，钢铁行业面临着进行产业结构调整的任务，重庆钢铁（集团）有限责任公司（以下简称重钢集团或重钢）也意识到必须借机进行一次大的调整，以符合国家产业调整与振兴规划的要求。 重钢环保搬迁工程是企业响应国家发展战略和落实科学发展观的重...In recent years, domestic economic development kept a good momentum in China. With the implementation of the national economic stimulus plan, a large number of infrastructure projects boosted the demand for steel production.Statistics show that China’s crude steel outputhas remained world’s number one for 13 years.At the same time, the national industrial upgrading planning clearly pointed out tha...学位：工商管理硕士院系专业：管理学院高级经理教育中心（EMBA项目）_高级管理人员工商管理硕士(EMBA)学号：X201215617

灾难冲击与我国最优财政货币政策选择

本文通过引入政府生产性支出拓展了包含灾难冲击的新凯恩斯DSGE模型,数值分析表明,相对于不含政府生产性支出的灾难冲击模型,该模型能够更好地拟合中国宏观经济波动等基本特征。在此基础上,本文分别在规则行事与相机抉择两种情形下对比分析了我国面对灾难冲击时的最优财政货币政策选择问题,研究发现:(1)应对灾难冲击时,相对于相机抉择,规则行事造成的经济福利损失较低;(2)政府生产性支出可以在一定程度上降低灾难冲击对消费和产出等宏观经济变量的影响,但同时会弱化债务对灾难冲击的吸收作用;(3)引入通货膨胀惩罚(或厌恶)后政府可以更多地倚重于债务发行来吸收外部不利冲击,从而缓解相机抉择下的时间不一致性问题,减少经济福利损失。国家社科基金项目“预期灾难冲击、宏观经济波动与中国财政货币政策工具选择研究”(批准号:16BJL028)；国家自然科学基金面上项目“罕见灾难风险与资产定价:理论拓展与基于我国股市实证研究”(批准号:71471154)的资助

ANTI-CORROSION TECHNOLOGY FOR FLUE GAS SEA-WATER DE-SULFURIZATION SYSTEM

以厦门嵩屿电厂4×300MW燃煤机组烟气海水脱硫系统的防腐蚀工程为例,探讨脱硫系统中防止海水与酸性烟气腐蚀的设备选材与防腐蚀工艺技术。Taking the flue gas sea water de-sulfurization(FGD) project of Songyu Power Plant with 4×300MW coal fired units as an example, the anti-corrosion technology for flue gas sea-water de-sulfurization system and the characters of the technology were introduced

髓磷脂抑制因子Nogo-A及其受体在缺血性脑卒中中的作用及机制研究进展

作为临床常见的中枢神经系统血管性疾病,缺血性脑卒中具有发病率高、死亡率高、致残率高的\"三高\"特点[1]。从临床资料来看,脑卒中具有非常复杂的病理生理过程,其中一个重要原因是由于脑缺血再灌注后发生大脑局部缺血缺氧,造成组织细胞损伤,比如神经元损伤、轴突生长抑制等,导致运动、感觉、学习和记忆等神经功能障碍[2]。现有研究成果证明,髓磷脂抑制因子Nogo-A及其受体广泛存在于哺国家自然科学基金(81501207,81471265,31570845);;陕西省专项科研计划项目(16JK1645);;陕西省自然科学基金重大基础研究项目(2016ZDJC-16

Effect of catalytic de-NO_x device on the emission characteristics of polycyclic aromatic hydrocarbon in flue gas

通过对装有选择性催化还原(SCR)脱硝装置的燃煤锅炉排放烟气中的多环芳烃(PAHs)进行测试,分析比较了工业锅炉排放的PAHs经过SCR脱硝装置前后的排放特性变化。实验结果表明,烟气催化脱硝装置促进了PAHs含量的增加,特别是低环多环芳烃含量的增加,并提高了其毒性当量,但对PAHs在气相与颗粒相的分布影响不大。The polycyclic aromatic hydrocarbons (PAHs) in flue gas emitted from a coal-fired power plant equipped with selective catalytic reduction (SCR) de-NOx device were determined. The concentrations and distributions of phase and type of PAHs in the flue gas at the outlet and inlet of the SCR device were compared. The results show that the SCR de-NOx device leads to the increase of concentrations and toxic equivalent of PAHs, especially the low rings of PAHs in the flue gas. However, the device has no significant influence on the PAHs partition between particle and the gas phase

Impact of discharge water from seawater flue gas desulfurization system of coal-fired power plant on the environment of surrounding sea area

进行了某4×300 MW燃煤锅炉的海水烟气脱硫(海水FGD)系统投运前后的海域监测。研究结果显示,海水曝气工艺可以较好地使脱硫后的海水水质得到恢复,除Hg必须引起严重关注外,排海海水的其他水质指标变化很小,附近海域所受影响甚微。The monitoring results of seawater samples from seawater flue gas desulfurization(FGD) system and surrounding sea area before and after running of seawater FGD system of a 4×300 MW coal-fired units in a coal-fired power plant have been presented.The results show that the aeration,mixing and dilution systems have obvious good function on sea water quality's resuming.Most of the water quality indexes remain unchanged and the discharge water has little effect on surrounding sea area except Hg to which more attention is needed.国家自然科学基金资助项目(20777063

Structural Characteristics and Sources of the Surface Sediments in Xiamen Coast

为研究厦门近海海域表层沉积物的结构特征、组成及来源,于2010年7月采集厦门湾表层沉积物,综合粒径分析、X射线衍射、扫描电镜等方法对沉积物进行表征。粒径分析的结果表明,沉积物的主体粒径在80μM附近,且有明显的次粒级峰,并以粗颗粒的主体粒级峰占有优势。研究的沉积物类型主要有三种,砂质粉砂、粉砂质砂和砂-粉砂,其中砂质粉砂是分布最广泛的沉积物类型区域沉积物,其含量达90%以上;而粘土含量以背景点鸡屿岛为最高,达到11.97%。X射线衍射分析表明,沉积物中优势轻矿物为石英、高岭石,部分区域含有石墨及一些零星分布的伊利石、海绿石和斜绿泥石。这些矿物组成显示了厦门湾海域表层沉积物具有较好的亲陆性,同时,其组成也受到了涨潮流的较大影响。沉积物形貌形态的研究发现,厦门湾沉积物组分较为复杂,其中含有多种藻类及其碎片(主要为硅藻)、矿物颗粒(高岭石)及未知名碎片;形状主要有孔状结构、层叠状结构、长条片状和不规则的六边形块状等。In order to study the structural characteristic,composition and source of the sediment in Xiamen coastal waters,the surface sediment in Xiamen Bay was collected in July,2010,and the samples were comprehensively analyzed by particle size analysis,X-ray diffraction,scanning electron microscopy and other methods.The results of the particle size analysis showed that the main diameter of the sediment was near 80 μm,with a pronounced secondary pea.There are three main types of sea sediments(sandy silt,silty sand,and sand-silt) and sandy silt is the most widely distributed type,which the content of the silt-sand at all study areas was nearly 90%,while the clay content was highest at the background point and reached to 11.97%.The X-ray diffraction analysis showed that the dominant light minerals in sediments were Quartz,Kaolinite;some areas contained Graphite.Illite,Glauconite and Clinochlore also had been found in some areas accidentally.The mineral composition showed the surface sediments had a good pro-land,meanwhile,it was affected by the flood current.While,the morphology study found that the composition of the sediments at the study areas were complex,containing a variety of algae and debris(mainly diatoms),minerals(kaolinite) and unknown debris.Cavernous structure,stack-like structure,long flake and irregular hexagon were the main shapes in these sediments.国家自然科学基金(41005082);近海海洋环境科学国家重点实验室青年访问学者基金(MELRS1017

阳离子聚合物介导下白细胞介素1受体拮抗剂基因兔角膜原位转染及其表达

目的探讨阳离子聚合物即线性聚乙烯亚胺(PEI)介导下兔角膜基质注射PEGFP-IL- 1ra质粒进行基因角膜原位转染的有效性和安全性。方法以人cDNA文库为模板进行聚合酶链反应(PCR),获得人IL-1ra cDNA片段,构建重组质粒PEGFP-hIL-1ra。以阳离子聚合物为介导转染角膜内皮细胞,通过绿色荧光蛋白(GFP)示踪、蛋白免疫印迹技术检测转染后IL-1ra基因和蛋白的表达。实验组30只Wistar大鼠角膜基质注射PEGFP-hIL-1ra质粒和PEI-in-vivo的混合溶液20μl(含10μg质粒),对照组15只Wistar大鼠角膜基质注射PEI-in-vivo溶液20μl。注射后1、3、6、14、21 d,收集角膜通过HE染色、透射电镜、锥虫蓝-茜素红染色、免疫组织化学观察1L-1ra基因角膜原位转染后的细胞结构和功能的变化。荧光显微镜下追踪IL-1ra-GFP融合蛋白在角膜的表达部位和表达强度。结果以cDNA文库为模板扩增出hIL-1ra cDNA片段,构建重组质粒PEGFP-hIL-1ra。经PstI和BamHI酶切及DNA测序证实了插入片段方向和大小正确。PEI-in-vitro介导下PEGFP-hIL-1ra转染角膜内皮细胞12 h后,可见10％-15％细胞中有GFP荧光表达。Western-blotting检测可见相对分子质量为44 000的hIL-1ra-GFP蛋白表达。PEGFP-hIL-1ra质粒和PEI-in-vivo角膜基质注射后1 d,角膜上皮基底细胞可见荧光条带,6 d时全角膜荧光强度达到高峰,14 d开始减弱,21d角膜上皮层尚存微弱荧光。对照组观察期内始终未见绿色荧光。实验组角膜HE染色未见病理性改变,角膜上皮基底细胞层p63抗体阳性;锥虫蓝-茜素红联合染色未见角膜内皮细胞损伤;透射电镜显示角膜各层细胞的细胞质内可见IL-1ra-GFP颗粒,未见细胞器的损害。结论阳离子聚合物介导下角膜基质注射PEGFP-hIL-1ra质粒可快速、有效地将IL-1ra基因转入角膜并表达,为临床上使用抗炎细胞因子IL-1ra对角膜免疫炎性反应相关疾病进行基因治疗提供了新的技术平台

PVP-stabilized heteropolyacids as reusable self-assembling catalysts for alcoholysis of cellulosic saccharides

National Basic Research Program of China [2011CBA00508]; Natural Science Foundation of China [20923004, 21173175]; Research Fund for the Doctoral Program of Higher Education [20110121130002]; Program for Changjiang Scholars and Innovative Research Team in University [IRT1036]Polyvinylpyrrolidone-stabilized heteropolyacids (PVP-HPAs) are synthesized by self-assembling in alcohol. The structure of PVP-HPAs is determined by various characteristic techniques. HPAs can protonate PVP to form polymeric cations. In turn, the protonated PVP interacts strongly with the heteropolyanion by forming an ionic liquid (IL)-like structure. The self-assembling separation and recyclability characteristics are related to the PVP's IL-like structure. The catalyzing performance of PVP-HPAs varies with the species of HPA and the content of PVP. The optimized PVP-H4SiW12O40 center dot 5H(2)O (HSiW) (1/5 : 3/4) gives more than 60% conversion of cellulose and complete conversion of highly selective cellobiose into butylglucosides. The optimized PVP-HSiW is separated directly by centrifugation and retains the activity without any post-treatment during recycling. The deactivation of PVP-HPAs is related to the loss of the catalyst during recycling. The functional mechanism of the IL-like structure is explored in this control experiment