Characterization of the Partially Folded Monomeric Intermediate of Creatine Kinase

IntroductionRecent studies of the protein folding pathway andintermediate states in vitro and in vivo haveinduced much interest in the importance ofunderstanding the propertiesof partially structuredintermediates[1 7] . Studies have suggested thatintermed…     

纳米ZnO阵列场发射性能研究

目的 为了进一步提高ZnO纳米阵列的场发射性能指标.方法 采用掺杂n型杂质元素Al和衬底预处理的方法生长ZnO纳米阵列,对相应样品的场发射性能进行比较分析.结果 和结论采用Al掺杂和衬底镀Au处理均提高了ZnO纳米阵列场发射的性能,降低了阈值场强.其中衬底镀Au并在此衬底上生长的Al掺杂ZnO纳米阵列开启电场小于0.5 V/μm、阈值电场为4.5 V/μm.     

Implementation of spatial touch system using time-of-flight camera

Recently developed time-of-flight principle based depth-sensing video camera technologies provide precise per-pixel range data in addition to color video. Such cameras will find application in robotics and vision-based human computer interaction scenarios such as games and gesture input systems. Time-of-flight principle range cameras are becoming more and more available. They promise to make the 3D reconstruction of scenes easier, avoiding the practical issues resulting from 3D imaging techniques based on triangulation or disparity estimation. A spatial touch system was presented which uses a depth-sensing camera to touch spatial objects and details on its implementation, and how this technology will enable new spatial interactions was speculated.     

基于根移动方法的LQR控制器设计

阐述一种LQR控制器设计的新方法.根据哈密尔顿系统理论,深入研究了系统特征方程的闭环极点和加权矩阵的关系,给出了希望加权矩阵的确定方法.通过Matlab仿真实验,证明了根据极点的移动范围来确定LQR控制器的方法是可行的.     

韩国古文献中出现的宋辛弃疾词的记录

通过对韩国古文献中出现的与辛弃疾有关的记录进行分析，可看出，虽然有关辛弃疾的史传文献较早传入朝鲜文坛，但他的词作传入时间则是在壬辰倭乱之后，而各时代朝鲜文人对辛词的评价也不一致。     

Policy Resistance Case Study Focused on Government's Intervention in the Conflict Between Big-Box Stores and Traditional Market in Korea Based on Systems Thinking Approach

Rapid expansion of big-box store in developing country caused typical archetypal change in market structure: Success to the Successful, because big-box stores armed with modernized infrastructure and management capability are absorbing the once customers of the traditional market like a black hole. Facing rapid change in market structure and surmounting pleas from traditional market merchants, government took an inevitable intervention with law regulating the big-box store's business and improving traditional market's competence building. Not so long, however, did government confront policy resistance from both sides: Still ongoing polarization of both side's sales. This study articulates behavior over time of market structure with causal loop diagrams of which causalities are extracted from literatures. This study provides significant contribution to policy makers and traditional markets' merchants in other developing countries like India and China, as well as Korea.     

后台阶分离再附湍流流动的实验研究

采用激光粒子图像速度仪(PIV)对低速水槽中二维后台阶分离再附湍流流动进行了系统的实验研究．通过大量重复高空间分辨率瞬态速度场测量,获得了时均再附点位置和时均速度场．对实验结果进行统计分析得到了流向、法向速度分量的脉动场、雷诺应力场和展向涡量场,并给出了小涡结构配对、合并和大尺度相干旋涡结构形成过程中所出现的流动特征．     

Photo-Fenton工艺处理畜产废水的运转条件

对于photo-Fenton工艺处理畜产废水进行了试验,通过改变高级氧化法的各种参数得到了最佳运转条件。最佳运转条件是:当pH=5、c[Fe2 ]=10 mmol/L、c[H2O2]=100mmol/L、反应时间为80min时,采用重铬酸盐法测定的化学需氧量(CODcr)为79%,色度为70%,大肠杆菌的去除率为99.5%。污泥发生量体积比为0.075,浓度约为5.6mg/L。结果表明:去掉畜产废水中妨碍紫外线吸收的固形物质后利用photo-Fenton工艺进行处理,可替代生物学方法对畜产废水进行处理。若用太阳光代替紫外线作为光源,则将进一步降低成本。因此,该方法是一种环保工艺。     

脱铝对SUZ-4分子筛性质的影响

为了提高SUZ-4分子筛的Si/Al比,以(NH4)2SiF6(AHFS)为脱铝剂对HK-SUZ-4分子筛脱铝进行研究.采用XRD、MAS-NMR、FT-IR、EDS和N2吸附等技术手段对脱铝的SUZ-4进行表征.结果表明,HK-SUZ-4分子筛经(NH4)2SiF6(AHFS)脱铝后Si/Al比升高,而且SUZ-4脱铝程度随着AHFS浓度的升高而增大.脱铝前后的SUZ-4分子筛表面酸中心以B酸为主.随着脱铝程度升高,SUZ-4分子筛表面B酸中心量和总酸量均逐渐减少,甲醇脱水活性降低.