Green revolution in electronic displays expected to ease energy and health crises

The technological revolution of long-awaited energy-saving and vision-friendly displays represented by bistable display technology is conning.Here we discuss methods,challenges,and opportunities for implementing bistable displays in terms of molecular design,device structure,further expansion,and required criteria,hopefully benefiting the light-related community.     

铝合金熔剂的研究

本文介绍了熔剂在铝合金熔炼过程中的作用,熔剂的分类和要求,常用熔剂的组成,适用范围及使用方法等。     

烧结粉尘采用机械输送与气力输送的比较

介绍了烧结厂输灰采用机械输送及气力输送两种方式各自的特点,以实际工程为例,通过技术经济比较可知：气力输送方式在技术上具有较大的优越性,而运行费用较高,但其综合效益要远优于机械输送,在烧结领域值得大力推广。     

The integration of image segmentation maps using region and edgeinformation

We present an algorithm that integrates multiple region segmentation maps and edge maps. It operates independently of image sources and specific region-segmentation or edge-detection techniques. User-specified weights and the arbitrary mixing of region/edge maps are allowed. The integration algorithm enables multiple edge detection/region segmentation modules to work in parallel as front ends. The solution procedure consists of three steps. A maximum likelihood estimator provides initial solutions to the positions of edge pixels from various inputs. An iterative procedure using only local information (without edge tracing) then minimizes the contour curvature. Finally, regions are merged to guarantee that each region is large and compact. The channel-resolution width controls the spatial scope of the initial estimation and contour smoothing to facilitate multiscale processing. Experimental results are demonstrated using data from different types of sensors and processing techniques. The results show an improvement over individual inputs and a strong resemblance to human-generated segmentation     

不同压紧件对IEGT工作表面压应力分布的影响

介绍了大功率器件IEGT在压装中,不同结构形式的压紧件对IEGT工作面压应力分布的影响,结合实例并通过有限元模拟及实验验证来确定压紧件的结构形式,以保证IEGT工作面压应力分布均匀,满足其在电力系统中使用要求。     

An MAS Framework for Speculative Trading Research in Stock Index Futures Market

In this paper, we develop a futures trading simulation system to determine how speculative behavior affects the futures mar ket. A eonfigurable client is designed to simulate traders, and users can define trade strategies using different programming languages. A lightweight server is designed to handle large scale and highly eoncmTent access requests from clients. HBase is chosen as the database to grantee sealability of the system. As HBase only supports single row transaction, a transaction support mechanism is developed to improve data consistency for HBase. The HBase transaction support mecha nism supports multirow and multitaMe by using two phase commit protocol. The experiments indicate that our system shows high efficiency in the face of the large scale and high concurrency access request, and the read/write performance loss of HBase introduced by the transaction support mecha nisms is also acceptable.     

色散补偿技术在通信传输系统中的应用

本文介绍了色散补偿现象对光信号在传输过程中的影响,并结合中国网通长途传输网工程,提出了解决色散问题的具体措施及建议.     

The working mechanism of organic photovoltaic cell by using copper phthalocyanine as exciton blocking layer

We demonstrate the working mechanism of organic photovoltaic (OPV) cell with copper phthalocyanine (CuPc) as exciton blocking layer (EBL). The new EBL material CuPc, commonly has been used as electron donor in the organic solar cells due to its electron-donating and hole-transporting properties. But here we proves that the α-polymorph CuPc layer can transfer electrons to Al cathode through the half-filled b_1g level, this mechanism is different from that of general EBL material with larger band gap and electron-transporting property, which is based on damage states induced by the heat of evaporating Al.     

Genome-Wide Identification and Characterization of the CC-NBS-LRR Gene Family in Cucumber (Cucumis sativus L.)

The NBS-LRR (NLR) gene family plays a pivotal role in regulating disease defense response in plants. Cucumber is one of the most important vegetable crops in the world, and various plant diseases, including powdery mildew (PM), cause severe losses in both cucumber productivity and quality annually. To characterize and understand the role of the CC-NBS-LRR(CNL) family of genes in disease defense response in cucumber plants, we performed bioinformatical analysis to characterize these genes systematically. We identified 33 members of the CNL gene family in cucumber plants, and they are distributed on each chromosome with chromosome 4 harboring the largest cluster of five different genes. The corresponding CNL family member varies in the number of amino acids and exons, molecular weight, theoretical isoelectric point (pI) and subcellular localization. Cis-acting element analysis of the CNL genes reveals the presence of multiple phytohormone, abiotic and biotic responsive elements in their promoters, suggesting that these genes might be responsive to plant hormones and stress. Phylogenetic and synteny analysis indicated that the CNL proteins are conserved evolutionarily in different plant species, and they can be divided into four subfamilies based on their conserved domains. MEME analysis and multiple sequence alignment showed that conserved motifs exist in the sequence of CNLs. Further DNA sequence analysis suggests that CsCNL genes might be subject to the regulation of different miRNAs upon PM infection. By mining available RNA-seq data followed by real-time quantitative PCR (qRT-PCR) analysis, we characterized expression patterns of the CNL genes, and found that those genes exhibit a temporospatial expression pattern, and their expression is also responsive to PM infection, ethylene, salicylic acid, and methyl jasmonate treatment in cucumber plants. Finally, the CNL genes targeted by miRNAs were predicted in cucumber plants. Our results in this study provided some basic information for further study of the functions of the CNL gene family in cucumber plants.