FE‐SEM observation of swelled seaweed using hydrophilic ionic liquid; 1‐butyl‐3‐methylimidazolium tetrafluoroborate

The method to observe the exact morphology of swelled seaweed as an example of biological material by field emission scanning electron microscopy (FE‐SEM) with the aid of hydrophilic ionic liquid (IL); 1‐butyl‐3‐methylimidazolium tetrafluoroborate is reported. Seaweed was first swelled in 3.5% NaCl solution and then treated with the IL and water mixture in 1:7 weight ratios and centrifuged to remove the excess IL solution. Thus treated seaweed maintained its morphology even at high magnification and did not show drying in the FE‐SEM chamber. This observation technique might be useful for various kinds of biological materials to be observed under FE‐SEM. Microsc. Res. Tech., 2013. © 2012 Wiley Periodicals, Inc.     

基于XML的个性化课件开发环境研究

个性化课件是远程教育的重要组成部分,该文提出了个性化课件开发环境的框架结构及其相应的功能,将新一代的Web语言XML引入B／S三层数据交换结构,并应用到个性化课件开发环境中,具有减少网络带宽需求,统一数据交换标准和充分体现课件个性化等优点。     

Comparison of performance between benzoindoline and indoline dyes in zinc oxide dye-sensitized solar cell

The cell performance of novel benzoindoline dyes on zinc oxide prepared by template cathode electro-deposition method was compared with that of known indoline dyes. Among cyanoacrylic, single and double rhodanine acetic acid derivatives, the cyanoacrylic benzoindoline dye showed better performance than the indoline dye (D131) due to larger J_sc value which comes from its positive E_ox level and bathochromic UV-vis absorption band.     

基于三态信号的测试数据相容压缩方法

针对超大规模集成电路（VLSL）的发展过程中测试数据量增加的问题，提出了一种基于三态信号的测试数据压缩方法。首先，对测试集进行优化预处理操作，即对测试集进行部分输入精简和测试向量重排序操作，在提高测试集中无关位X的比例的同时，使各测试向量之间的相容性提高；随后，对预处理后的测试集进行三态信号编码压缩，即利用三态信号的特性将测试集划分为多个扫描切片，并对扫描切片进行相容编码压缩，考虑多种相容规则使得测试集的压缩率得到提高。实验结果表明，与同类压缩方法相比，所提的方法取得了较高的压缩率，平均测试压缩率达到76.17%，同时测试功耗和面积开销也没有明显增加。     

Recording and readout using clock marks premastered by groovewobbling

A new recording and readout technique for land and groove recording on a magnetic super-resolution (MSR) disk is described. The technique uses specifically premastered clock marks. To generate a stable clock signal, the clock marks are fabricated with short bursts in grooves by wobbling at a different frequency from address information. The clock marks and the address information can be separated from a track error signal. When the extracted clock signal is applied to precise recording and readout of the magneto-optical data marks, the bit error rate becomes lower than that of the conventional clock recording/readout system. Additionally, the crosstalk of the wobbled address information to the magneto-optical signal can be canceled out electronically. This new format is not only suitable for high-density recording but also convenient in the disk manufacturing process     

Multi‐label emotion recognition of weblog sentence based on Bayesian networks

An increasing number of common users, in the Internet age, tend to express their emotions on the Web about everything they like or dislike. As a consequence, the number of all kinds of reviews, such as weblogs, production reviews, and news reviews, grows rapidly. This makes it difficult for people to understand the opinions of the reviews and obtain useful emotion information from such a huge number of reviews. Many scientists and researchers have attached more attention to emotion analysis of online information in the natural language processing field. Different from previous works, which just focused on the single‐label emotion analysis, this paper takes into account rich and delicate emotions and gives special regard to multi‐label emotion recognition for weblog sentences based on the Chinese emotion corpus (Ren‐CECps). Using the theory of Bayesian networks and probabilistic graphical model, the latent emotion variable and topic variable are employed to find out the complex emotions of weblog sentences. Our experimental results on the multi‐label emotion topic model demonstrate the effectiveness of the model in recognizing the polarity of sentence emotions. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.     

对控制性水库特点的探讨

首先提出了流域控制性水库的概念,指出水库对流域是否具有控制性影响,不仅仅是由其规模决定的,而主要由其功能与在流域中所起的作用决定的。从控制性水库对自然与社会经济环境影响的特点与控制性水库管理的特点两个方面进行了深入的探讨;指出控制性水库对自然环境与社会经济影响的特点,体现在重大性、深远性、兴利除弊的长期性3个方面;控制性水库管理的特点,体现在管理对象的复杂性、管理范围的相对独立性、管理目标的复合性、管理任务的阶段性等方面。     

采用动态环路调整的多模式低纹波低纹波电荷泵的设计

In order to improve efficiency and reduce the output ripple, a novel multi-mode charge pump is presented. The proposed charge pump includes dual-loop regulation topology-skip and linear modes. It consumes low quiescent current in skip mode for light loads, and produces low ripple in linear mode for heavy loads, which closes the gap between linear mode and skip mode with active regulation; a multi-mode charge pump employing the technique has been implemented in the UMC 0.6-μm-BCD process. The results indicate that the charge pump works well and effectively; it has low ripple with special regulation, and minimizes the size of the capacitance, then decreases the area of the PCB board. The adjustable output of the positive charge pump is 10-30 V, and the maximum output ripple is 100 mV when the load current is 200 mA. The line regulation is 0.2%/V, and load regulation is 0.075%.     

Preparation of self-bursting microcapsules by interfacial polymerization

Here, we describe a new technique for microencapsulating pyriproxyfen, a widely used insect growth regulator. Using interfacial polymerization, we successfully prepared self-bursting microcapsules that retained their shape when suspended in water but break open quickly after the water evaporates. In order to investigate the self-bursting phenomenon, we studied the relationship between formulation factors such as volume median diameter (D) or wall thickness (T) and the physical strength of the obtained polyurethane films. As a result, it was found that T and the structure of isocyanate affected the self-bursting phenomenon.