甲醇裂解做内燃机燃料裂解催化制的研究

在固定床连续流动式反应装置上评选出了三种不同类型的甲醇裂解催化剂。这些催化剂在液体空速１．５～４．５ｈ￣－１、温度２５０～４５０℃、压力０．５ＭＰａ的条件下使甲醇单程转化率达到９５％以上。产品气主要是ＣＯ和Ｈ＿２气,（Ｈ＿２／ＣＯ≈２）及少量ＣＯ＿２、ＤＭＥ（二甲醚）和水等杂质,产气组成稳定。其中一种催化剂在２０ｍｌ规模的反应装置上间歇累计运转了１０００ｈ,性能稳定。将该催化剂放大到１立升规模,在相同条件下,可以重复小试结果。该催化剂具有机械强度高,热稳定性好,抗积炭等特点,有可能在汽车用发动机代用燃料的制备中应用。     

N503为载体的乳状液膜提取钯（Ⅱ）的研究

研究了以N，N－二（1－甲庚基）乙酰胺（N503）为流动载体、兰113A为表面活性剂、煤油为膜溶剂，EDTA做内相试剂的乳状液膜体系迁移钯的机理，其迁移钯的反应经紫外可见光谱证实为阴离子交换反应，在所筛选出的适宜制乳及迁移提取等最佳条件下，98％以上的钯迁入内相。     

从文献计量角度看国际天然气水合物研发态势

以ISI Web of Know ledge信息平台提供的SC I(网络版)数据库、IN SPEC数据库和D II数据库为数据源,以Derwent Analytics软件为分析手段,对1995―2005年期间发表/申请的国际天然气水合物研究论文/创新专利的年度分布、国家分布、机构分布、期刊分布和作者分布情况作了分析与比较,从文献计量角度指出了国际天然气水合物的研发主要集中在美、日、俄、加、英、德、法、中、挪等国的国立科研机构、政府部门和大学。同时分析了中国天然气水合物的研究概况。     

99Tcm-YDPC在荷瘤裸鼠体内的分布与放射免疫显像

Ｓｃｈｗａｒｔｚ直接还原法制备＾９９Ｔｃ＾ｍ－ＹＤＰＣ,分别采用Ｌｉｎｄｍｏ法与Ｓｃａｔｃｈａｒｄ示测定标记抗体的体外免疫活性分数及亲和常数,经尾静脉注射１４．４ＭＢｑ＾９９５ｃ＾ｍ－ＹＤＰＣ于荷瘤裸鼠,２２ｈ后进行γ照相及体内放射性分布测定,并用荷结肠癌裸鼠进行对照。研究结果显示：＾９９Ｔｃ＾ｍ对ＹＤＰＣ的标记率为１％－６５Ａ％,＾９９Ｔｃ＾ｍ－ＹＤＰＣ的免疫活性分数为５８．１％,对人前列腺癌细     

Hydrogen Terminated Germanene for a Robust Self‐Powered Flexible Photoelectrochemical Photodetector

As a rising star in the family of graphene analogues, germanene shows great potential for electronic and optical device applications due to its unique structure and electronic properties. It is revealed that the hydrogen terminated germanene not only maintains a high carrier mobility similar to that of germanene, but also exhibits strong light–matter interaction with a direct band gap, exhibiting great potential for photoelectronics. In this work, few‐layer germanane (GeH) nanosheets with controllable thickness are successfully synthesized by a solution‐based exfoliation–centrifugation route. Instead of complicated microfabrication techniques, a robust photoelectrochemical (PEC)‐type photodetector, which can be extended to flexible device, is developed by simply using the GeH nanosheet film as an active electrode. The device exhibits an outstanding photocurrent density of 2.9 µA cm^?2 with zero bias potential, excellent responsivity at around 22 µA W^?1 under illumination with intensity ranging from 60 to 140 mW cm^?2, as well as short response time (with rise and decay times, t_r = 0.24 s and t_d = 0.74 s). This efficient strategy for a constructing GeH‐based PEC‐type photodetector suggests a path to promising high‐performance, self‐powered, flexible photodetectors, and it also paves the way to a practical application of germanene.     

Buckled Structures: Fabrication and Applications in Wearable Electronics

Wearable electronics have attracted a tremendous amount of attention due to their many potential applications, such as personalized health monitoring, motion detection, and smart clothing, where electronic devices must conformably form contacts with curvilinear surfaces and undergo large deformations. Structural design and material selection have been the key factors for the development of wearable electronics in the recent decades. As one of the most widely used geometries, buckling structures endow high stretchability, high mechanical durability, and comfortable contact for human–machine interaction via wearable devices. In addition, buckling structures that are derived from natural biosurfaces have high potential for use in cost‐effective and high‐grade wearable electronics. This review provides fundamental insights into buckling fabrication and discusses recent advancements for practical applications of buckled electronics, such as interconnects, sensors, transistors, energy storage, and conversion devices. In addition to the incorporation of desired functions, the simple and consecutive manipulation and advanced structural design of the buckled structures are discussed, which are important for advancing the field of wearable electronics. The remaining challenges and future perspectives for buckled electronics are briefly discussed in the final section.     

通用交直流传动系统CAD软件包的系统辨识功能

本文以通用交直流传动系统CAD软件包为背景,引入分数时滞模型及其辨识方法,分别辨识交直流传动系统的离散模型,并能求得其对应的连续模型,这为利用工程设计方法,自适应地设计控制器提供了方便。另外,本软件包所提供的方便的图形界面,明显的辨识结果比较,也为自动控制系统工程设计方法的学习提供了很好的CAI手段。     

对乘性建模误差具有强鲁棒性的HMRACS的设计

一般的ＭＲＡＣＳ只对Ⅰ型建模误差有鲁棒性的对Ⅱ型建模误差没有鲁棒性。针对此情况,首次把混合自适应算法应用到对乘性孀寞误差具有鲁棒性的ＭＲＡＣＳ中,进一步增强了该系统对建模误差的鲁棒性。