Is compulsive internet use related to sensitivity to reward and punishment,and impulsivity?

Aim of the present study was to examine whether the personality correlates sensitivity to reward and to punishment, and impulsivity predict compulsive internet use (CIU). Furthermore, the predictive value of these personality correlates was compared to the predictive value of factors relating to psychosocial wellbeing. The results showed that particularly rash spontaneous impulsivity predicts CIU and that this personality factor is more important than psychosocial wellbeing factors. Sensitivity to reward, which is supposed to play a role in craving processes associated with substance abuse and eating disorders, could not be related to CIU. The data suggest that internet users who are characterized by an impulsive personality feature, are less able to control their use of the internet, which makes them more vulnerable to develop CIU.     

战场监测中传感器网络技术应用研究

基于传感器网络技术,探讨了其在战场监测中的应用。采用Top-K技术,经过路由树建立、区域生成和定位三个阶段达到了对战场静止目标和运动目标的监测。方法实现简单,基本上可以满足战场目标定位和军事打击需求。     

基于工学结合的网络综合布线教学改革实践

该文阐述了网络综合布线在课程体系的作用,提出了工学结合的教学设计和教学方法,最后给出教学改革产生的教学效果。     

社保网络信息安全防护

本文针对各种威胁社保网络安全的多种因素,进行有的放矢地构建相应策略,综合立体地进行网络安全防护,构建了一个多方面考虑的安全网络,这样社保部门在保护计算机网络设备安全和计算机网络系统安全的同时也保护了数据的安全,为构建和谐社会贡献力量。     

Synthesis and characterization of novel blue azo‐dye derivatives containing acrylate group for dye‐based color filters

Abstract— Even though dyes have a fine resolution and good chromaticities, they are not widely used as coloring materials for color filters (CFs) due to their low thermal stability and chemical resistance. A series of azo‐dye derivatives, which consist of two cross‐linkable acrylate or methacrylate groups to improve thermal and chemical properties, have been synthesized and used to fabricate color filters. The spectral properties and chemical/thermal stabilities of the fabricated CFs were investigated by comparing dye‐based CFs, without a complicated dispersion process, but with pigment‐based CFs using dispersed pigment. Also, more properties including the development test and surface morphologies lithographic properties were studied. The synthesized azo dyes were characterized by elemental analysis, UV‐visible spectra, IR, mass, and ¹H‐NMR spectra.     

Ultra‐fast‐switching flexoelectric liquid‐crystal display with high contrast

Abstract— The flexoelectro‐optic effect provides a fast‐switching mechanism (0.01–0.1 msec), suitable for use in field‐sequential‐color full‐motion‐video displays. An in‐plane electric field is applied to a short‐pitch chiral nematic liquid crystal aligned in the uniform standing helix (or Grandjean) texture. The switching mechanism is experimentally demonstrated in a single‐pixel test cell, and the display performance is investigated as a function of device parameters. A contrast ratio of 2000:1 is predicted.     

信息安全等级保护概述

各类组织在不断更新信息化步伐的同时也面临着两难处境,过强的信息保护会造成组织不必要的成本支出,过弱的信息保护又会对组织等造成损害。为此,相关政府组织特提出信息系统安全等级保护的一系列规范,从国家标准的高度强化各类组织信息安全管理。各类组织可对照规范确定自身应实施的适度的信息安全保护。     

基于倒排索引的密文数据库检索方法研究

针对实际密文数据库的应用,在全文检索倒排索引技术的基础上,设计了一种通过密文倒排索引文件对其进行快速检索的方法。密文索引文件中主要包含有索引项、相对应的记录主键等信息。检索时,通过用检索词匹配索引文件中的索引项,找到对应的记录主键集合,再根据记录主键集合查询密文数据库,获取相应的密文数据,进行解密即可获取明文数据信息。整个检索过程中不对数据库进行解密,从而实现了在不解密的情况下对密文数据库的快速检索。     

可靠实现煤矿双机热备系统的方法

在分析商用双机热备系统在煤矿应用的局限性基础上,提出了一种适用于中小煤矿的双机热备系统纯软件实现方法。该方法采用单/双工混合运行模式保证双机实时性能和数据一致性,采用心跳线连接和对等网络消息传递机制实现运行故障监测与传递功能,采用数据自动同步技术减少人工干预和提高系统可维护性,并采用虚拟IP地址技术实现应用层透明访问和无缝切换功能。实验与应用案例证明该方法符合相关行业安全标准并具备现实可行性。     

基于无线网桥的煤矿防火注浆监测系统远程通信的实现

针对现有煤矿防火注浆监测系统有线数据传输方式存在布线复杂、成本高的问题,提出了一种基于无线网桥的煤矿防火注浆监测系统远程通信的实现方案,介绍了无线网桥的3种桥接模式以及无线传输的特点,阐述了基于AX9800 11A无线网桥、采用点对点桥接模式实现济宁二号煤矿防火注浆监测系统远程通信功能的方案。测试结果表明,该方案无线通信的有效距离≥10 km,有效传输速率达10 Mbit/s,视频信号延迟时间≤5 s,数据传输性能可靠,通信质量好。