Electrochemical Deposition of GaSb Thin Films for Phase Change Memory

相变存储材料在光存储领域具有广阔的应用前景，GaSb是综合性能优异的相变存储材料，热稳定性好、晶化速率大、结晶化时间短。电化学方法以其设备简单、操作容易、成本低等优点，成为很有前景的薄膜制备方法。由于SbO+的标准电位与Ga3+的标准电位相差较大，且Ga3+的标准电位负于析氢过电位，还原Ga3+易析氢，因此水溶液中电沉积GaSb报道仍很少。 本论文通过循环伏安对电解液在ITO导电玻璃基片上的电化学行为进行研究，并用X射线衍射技术(XRD)、扫描电子显微技术（SEM）和能谱分析(EDS)表征样品。首先采用恒电位共沉积技术和热处理的方法制备GaSb薄膜，系统研究了电解液中离子浓度、沉积温度以及p...Phase-change materials have broad application in optical and electrical data storage devices. GaSb alloy has been commercialized in optical storage device. GaSb has excellent comprehensive properties, such as good thermal stability, high crystallization speed and short crystallization time. Electrochemical deposition has been considerated as one of the potential methods to synthesize thin films wi...学位：工学硕士院系专业：材料学院_材料学学号：2072010115009

An Empirical Study on Financial-industrial Integration in Chinese Information Technology Industry

产融结合是指产业资本和金融资本之间的结合，是资本追逐利润最大化的方式，是市场经济发展到一定阶段的必然产物。19世纪末20世纪初，资本主义国家工业和银行业垄断基本形成，产融结合由此开始产生。随着我国经济的发展，产融结合现象在我国时常发生。产业资本与金融资本的结合可以加速资本集中，促使储蓄向投资的转换，从而促进经济的增长。但是经济危机告诉我们，产融结合在促进世界经济繁荣发展的同时，产融结合的无效或负效也可能会给世界经济带来更大的危害。从我国的实践来看，产融结合的效果对工商产业和金融产业都会产生巨大的影响，文章主要研究对工商企业的影响。这种影响是双向的，既有正面效应，也有负面效应。信息技术业是一个国...The integration of industry and finance refers to the integration of industrial capital and financial capital. It is the form of profit maximization pursued by capital, and it is an inevitable product by the development of the market economy. In later 1900s and earlier 2000s, integration of financial institutions and industrial capital has occurred during the rudiment formation of industrial and b...学位：经济学硕士院系专业：经济学院经济系_管理经济学学号：1532009115177

文化・科学 中国的大气污染问题 : 新标准背景下的兰州市大气污染水平的再评价

日中台共同研究「現代中国と東アジアの新環境」 ②21世紀の日中関係 : 青年研究者の思索と対

认同、想象与表达:华安高山族的文化重构

华安县是大陆高山族同胞聚居最多的县份,而华安高山族在近几十年的生活中经历了在地化的过程.20世纪90年代初,地方社会政治、经济发展为高山族文化重构奠定良好基础,高山族文化逐渐获得发展,产生了以舞蹈和服饰为主的文化内容.高山族以集体或个体不同形象主动参与文化重构,其主体性意识逐渐提升,不断加强了身份认同与文化认同.国家社会科学基金重大项目“台湾原住民族群关系研究”(14ZDB113)阶段研究成

塑造文化传统：华安高山族的舞蹈实践

20世纪90年代以来,高山族舞蹈逐渐被塑造为华安高山族的文化传统。其背后透露出华安高山族、文化权威及地方政府构成的权力关系,在政治经济脉络下,促使舞蹈成为一种社会记忆被标签化,也使高山族人对本民族文化呈现出多重认同感。国家社会科学基金重大项目“台湾原住民族群关系研究”（14ZDB113

Progress on Roles and Mechanisms of Phosphate-solubilizing Microorganisms in Remediation of Heavy Metal Contaminated Soils

重金属污染是我国目前面临的最严峻的环境问题之一,如何科学治理已成为科学研究的热点和难点.解磷微生物(phosphate-solubilizing microorganisms,PSMs)作为一类备受关注的农业有益菌,在长期重金属逆境环境中,不仅进化出一系列的耐性和抗性机制,而且作为可溶性磷酸盐的潜在供应体,产生的磷酸根离子在化学钝化修复或植物修复重金属污染土壤中都发挥着举足轻重的作用.除此之外,该类功能菌所产生的植物生长素、1-氨基环丙烷-1-羧酸脱氨酶、铁载体、低分子量有机酸、生物表面活性剂等,可进一步强化植物修复重金属污染能力.主要综述了近年来解磷微生物联合化学钝化修复和强化植物修复技术两方面研究,以期更好地服务于原位修复重金属污染土壤.Heavy metal pollution is one of the most serious environmental problems in our country.How to treat it scientifically has become a challenge and hotspot.Phosphate-solubilizing microorganisms( PSMs),a group of beneficial microorganisms in agriculture,have developed a series of tolerance and resistance mechanisms in the long-term metal-contaminated soils.And as the potential donor of soluble phosphate,the phosphate ions produced by them play an important role in chemical immobilization and phytoremediation of metalliferous soils. In addition,the plant hormone,1-aminocyclopropane-1-carboxylate deaminase,siderophores,low-molecular-weight organic acids,etc. produced by metalresistant PSMs,will further enhance the effectiveness of phytoremediation by increasing the plant growth and changing the metal toxicity.Here,in order to provide a better service for in situ treatment of heavy metal contaminated soils,this review highlights the importance of PSMs and demonstrates their potential role in chemical immobilization and phytoremediation of heavy metals.国家重点基础研究发展计划(973计划)(2013CB956504);; 国家自然科学基金重点项目(31530008

Progesterone regulating glutathione S-transferase Omega-1 expression in the mouse uterine luminal and glandular epithelium during preimplantation period

目的研究谷胱甘肽S-转移酶Omega-1(Gsto 1)在小鼠胚胎着床过程中的表达和孕酮的调节。方法105只CD1小鼠,分为正常妊娠模型和类固醇激素处理模型。正常妊娠模型中,收集妊娠第1~第5天子宫,采用Real-time PCR、原位杂交和Western blotting 3种方法检测Gsto1的表达变化;类固醇激素处理模型均采用卵巢切除2周后的小鼠,又分为雌孕激素处理组、孕酮处理不同时间组和孕酮受体拮抗剂Ru486处理组,所有组中的对照均用芝麻油处理。雌孕激素处理组中,收集芝麻油、雌激素、孕酮、雌激素加孕酮分别处理12h后的子宫;孕酮处理不同时间组中,收集芝麻油和孕酮分别处理1、3、12、24 h后的子宫;Ru486处理组中,收集芝麻油、Ru486、孕酮、Ru486加孕酮分别处理12 h后的子宫。类固醇激素处理模型使用Real-time PCR和Western blotting两种方法检测Gsto1的表达变化。结果 Gsto1主要在妊娠第1~4天的子宫腔上皮及腺上皮中表达,其中,妊娠第1~3天表达量较高,第4天表达量较低,第5天着床点和非着床点均不表达。孕酮诱导Gsto1的表达,雌激素不能诱导Gsto1的表达,并能抑制孕酮对Gsto1的诱导。Ru486降低孕酮对Gsto1的诱导,孕酮处理1、3、12 h均促进Gsto1的表达,但作用24 h后,抑制Gsto1的表达。结论 Gsto1在小鼠妊娠早期子宫腔上皮及腺上皮中表达,雌激素能够拮抗孕酮对Gsto1的诱导,孕酮可以通过孕酮受体调节Gsto1的表达,并且具有短时调节作用。Objective To investigate the expression and regulation of glutathione S-transferase Omega-1( Gsto1) in the mouse uterus during embryo implantation. Methods A total of 105 CD1 mice were divided into the normal pregnancy model and steriod hormone treatment model. Uterus were collected from days 1 to 5 of pregnancy in normal pregnancy model,and Gsto1 expression was detected by Real-time PCR,in situ hybridization and Western blotting. Ovariectomized mice were used in the steriod hormone model after 2 weeks,and divided into estrogen and progesterone treatment group,progesterone treatment course group,progesterone receptor antagonist Ru486 treatment group. Sesame oil was used for the control of all groups. In the estrogen and progesterone treatment group,uterus was collected after sesame oil,estrogen,progesterone,estrogen plus progesterone treatment 12 hours,respectively. In the progesterone treatment course group,uterus was collected after progesterone treatment 1 hours,3 hours,12 hours and 24 hours,respectively. In Ru486 treatment group,uterus was collected after sesame oil,Ru486,progesterone,Ru486 plus progesterone treatment 12 hours. Gsto1 expression was detected by Real-time PCR,and Western blotting in the steriod hormone model. Results Gsto1 was mainly expressed in the uterine luminal and glandular epithelium on days 1 to 4 of pregnancy. Gsto1 expression was high on day 1 to 3,but became lower onday 4. On day 5,Gsto1 expression was not detected at implantation sites and non-implantation sites. Progesterone induced Gsto1 expression. Estrogen did not induce Gsto1 expression,but inhibited the induction of progesterone on Gsto1. Ru486 reduced the induction of progesterone on Gsto1. Progesterone treatment for 1 hour,3 hours,12 hours promoted Gsto1 expression,but after 24 hours,inhibited Gsto1 expression. Conclusion This study suggests that Gsto1 is mainly expressed in the uterine luminal and glandular epithelium during preimplantation. Estrogen inhibits the induction of progesterone on Gsto1.Progesterone enhances Gsto1 expression by progesterone receptor in short time.国家自然科学基金(31401953);; 安徽省教育厅自然科学重点项目(2014A143

解放科学记录： 让数字时代的学术出版为科学服务

本报告是国际科学理事会（International Science Council）发布的&ldquo;Opening the Record of Science: Make Scholarly Publishing Work for Science in the Digital Ear&quot;的中文翻译版（原文请见翻译版中标注）。该报告主要针对科学界及其机构，寻求尽可能建立关于传播科学成果的科学出版系统的原则和优先事项的共同看法，并成为促进积极变化动的行动的前驱。本报告遵循一个鲜明的逻辑：提出一系列作为科学与学术出版运作基础的规范的原则；描述当前出版环境及其进化轨迹；分析这些原则在实践中被遵守的程度；确定在实现这些原则时需要解决的问题，为ISC成员和其他利益相关者随后的讨论和行动提出议题</p

Preparation and Visible Light Photocatalytic Activity of Fe-N Codoped TiO2 Nanotube Arrays

Corresponding author. Email: [email protected]; Tel: +86-10-2184655[中文文摘]应用电化学阳极氧化法结合浸渍和退火后处理制备了Fe和N共掺杂的TiO2纳米管阵列光催化剂,并用场发射扫描电镜(FESEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)和俄歇电子能谱(AES)仪对其进行了表征.结果表明,Fe、N共掺杂对TiO2纳米管阵列的形貌和结构没有明显影响,Fe和N均掺入了TiO2晶格.紫外-可见(UV-Vis)漫反射光谱显示Fe和N共掺杂TiO2纳米管阵列的吸收带边较纯TiO2纳米管阵列和单一掺杂TiO2纳米管阵列红移,可见光吸收增强.以可见光催化降解罗丹明B(RhB)考察了材料的光催化活性,Fe和N共掺杂TiO2纳米管阵列对RhB的降解速率较纯TiO2纳米管阵列和单一掺杂TiO2纳米管阵列明显提高,证明了Fe、N共掺杂产生的协同效应提高了TiO2纳米管阵列在可见光照射下的光催化活性. [英文文摘]Fe-N codoped TiO2 nanotube arrays were fabricated by anodization of Ti, followed by wet immersion and annealing post-treatment. The doped TiO2 nanotube array photocatalysts were characterized by field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Auger electron spectroscopy (AES). The results indicated that Fe and N dopants had almost no effect on the morphology and structure of TiO2 nanotube arrays, and that Fe and N were doped into the TiO2 lattice. UV-Vis diffuse reflectance spectra showed that the absorption band edge of Fe-N codoped TiO2 nanotube arrays exhibited a red shift compared with that of pure TiO2 nanotube arrays and Fe- or N-doped TiO2 nanotube arrays. The photocatalytic activity of Fe-N codoped TiO2 nanotube arrays was evaluated by their ability to degrade rhodamine B under visible light irradiation. The degradation rate of rhodamine B over Fe-N codoped TiO2 nanotube arrays was obviously higher than that over pure TiO2 nanotube arrays and Fe- or N-doped TiO2 nanotube arrays, which is attributed to the synergistic effect of the Fe and N codopants.国家自然科学基金(51072170,21021002);福建省自然科学基金(2011J01057);国家基础科学人才培养基金(J1030415)资助项

Preparation and Visible Light Photocatalytic Activity of Fe-N Codoped TiO_2 Nanotube Arrays

应用电化学阳极氧化法结合浸渍和退火后处理制备了fE和n共掺杂的TIO2纳米管阵列光催化剂,并用场发射扫描电镜(fESEM)、X射线衍射(Xrd)、X射线光电子能谱(XPS)和俄歇电子能谱(AES)仪对其进行了表征.结果表明,fE、n共掺杂对TIO2纳米管阵列的形貌和结构没有明显影响,fE和n均掺入了TIO2晶格.紫外-可见(uV-VIS)漫反射光谱显示fE和n共掺杂TIO2纳米管阵列的吸收带边较纯TIO2纳米管阵列和单一掺杂TIO2纳米管阵列红移,可见光吸收增强.以可见光催化降解罗丹明b(rHb)考察了材料的光催化活性,fE和n共掺杂TIO2纳米管阵列对rHb的降解速率较纯TIO2纳米管阵列和单一掺杂TIO2纳米管阵列明显提高,证明了fE、n共掺杂产生的协同效应提高了TIO2纳米管阵列在可见光照射下的光催化活性.Fe-N codoped TiO 2 nanotube arrays were fabricated by anodization of Ti,followed by wet immersion and annealing post-treatment.The doped TiO 2 nanotube array photocatalysts were characterized by field-emission scanning electron microscopy(FESEM),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and Auger electron spectroscopy(AES).The results indicated that Fe and N dopants had almost no effect on the morphology and structure of TiO 2 nanotube arrays,and that Fe and N were doped into the TiO 2 lattice.UV-Vis diffuse reflectance spectra showed that the absorption band edge of Fe-N codoped TiO 2 nanotube arrays exhibited a red shift compared with that of pure TiO 2 nanotube arrays and Fe-or N-doped TiO 2 nanotube arrays.The photocatalytic activity of Fe-N codoped TiO 2 nanotube arrays was evaluated by their ability to degrade rhodamine B under visible light irradiation.The degradation rate of rhodamine B over Fe-N codoped TiO 2 nanotube arrays was obviously higher than that over pure TiO 2 nanotube arrays and Fe-or N-doped TiO 2 nanotube arrays,which is attributed to the synergistic effect of the Fe and N codopants.国家自然科学基金(51072170;21021002);福建省自然科学基金(2011J01057);国家基础科学人才培养基金(J1030415)资助项目---