Windows 8.1无法更新

正Q:我的系统升级到Windows 8.1后,右下角经常弹出系统更新提示,但在更新时却总是失败。请问这该怎么办?A:系统及时更新很重要,除了功能的增强,往往还有微软对安全漏洞的补丁。如果遇到系统无法自动更新的情况,有可能是安装的第三方防火墙的误拦截所致,在设置中进行放行即可。另外也有可能是网络状况不好所致,这时可以根据自己系统的版本直接到微软网站下载相应的补丁程序,然后在本地安装。     

Nanolayer coatings for hard disk and demanding tribological applications

Coating properties and performance can be tailor-designed by proper control of nano structure andprocess conditions. This paper presents two examples: first, the synthesis and optimization of 1 nm thick nitrogenated carbon (CN_x) nano-layers as protective overcoats in extremely highdensity harddisksystems, and, second, the development of multilayer coatings for wear protection at elevated temperatures. Synthesis of these coatings was done by magnetron sputtering. These studies demonstrate that one canproduce atomically smooth 1 nmthickCN_xovercoatswith acceptable corrosionperformance. In addition, this paper shows that, with the proper choice of nanolayer thickness and process conditions, superhard coatings based on TiN/SiN_x and TiB₂/TiC multilayers with high thermal stability, low internal stress, and high wear resistance can be synthesized.     

拯救食物的想象——《旬がまるニと》

餐厅是一个扼杀想象力的地方。当我们走进一家餐厅．翻开菜单．面对着一堆五花八门的菜名开始犹豫．到底是要点水煮牛肉还是脆皮法国鹅肝．西红柿炒鸡蛋还是凯撒沙拉……之所以难以抉择，并不因为摆在面前的选择多起来．     

Windows 7启动后常死机

正Q:安装Windows 7后,系统频繁出现死机、卡死等症状,打开日志发现对应死机的时间点有一个错误,信息:\Device\Video5!0702(24f8)。请问这该如何解决?A:这个故障主要是由于显卡驱动引起的,你的显卡应该是nVIDIA 4或5系列,只要将原有的显卡驱动程序卸载,然后到http://tinyurl.com/orqxpkq下载安装该版本驱动程序即可解决这个问题。     

Extending the technology acceptance model to explore the intention to use Second Life for enhancing healthcare education

Learners need to have good reasons to engage and accept e-learning. They need to understand that unless they do, the outcomes will be less favourable. The technology acceptance model (TAM) is the most widely recognized model addressing why users accept or reject technology. This study describes the development and evaluation of a virtual environment, the online 3D world Second Life (SL), for learning rapid sequence intubation (RSI). RSI is an increasingly frequently used method of acute airway management in healthcare settings. The intention of learners to use the system was explored based on the TAM, with the computer self-efficacy construct as an external variable. Two hundred and six nursing students participated in this study. The findings suggest that the system was perceived as useful, and that the students felt confident working with computers and intended to review RSI in SL as often as needed. However, they remained neutral regarding the ease of use of the system. Strategies were suggested for boosting the students’ self-confidence in using the system. Overall use of the TAM in this context was successful, indicating the robustness of the model. The limitations of the study were discussed and further areas of research on the TAM were proposed.     

固态硬盘的系统空间告急

正Q:一块64GB的固态硬盘,分了一个24GB的分区用作系统盘并安装了Windows 7系统。现在系统提示空间告急,能否在不重装系统的情况下解决此问题?A:先考虑将页面文件迁移至非系统盘中,再关闭系统休眠功能,这样一般可以节约大约2倍内存大小的空间。然后再辅助删除一些不需要的程序、清空回收站等常规优化类操作,应能腾出更多的磁盘空间。     

猎豹自动设置默认浏览器

正Q:我平时使用的是傲游浏览器,只是为了抢火车票才又装了个猎豹浏览器。但是只要打开过一次猎豹,它就会自动将自己设置为默认浏览器,导致平时的浏览很不方便。请问这该如何解决?A:打开猎豹浏览器,单击菜单"工具→选项",在打开的窗口中选择"基本设置",在右侧取消选择"启动时检查默认浏览器"选项,保存设置即可。     

局域网内的远程桌面速度很慢

正Q:局域网内的两台Windows 8.1系统的电脑,使用系统自带的远程桌面功能互相连接,速度特别慢,经常出现卡顿现象。请问这该如何解决?A:如果是局域网内,应该不是网速原因导致的。你可以在两台电脑中,分别按Win+R键调出运行对话框,然后试着输入并执行"netsh interface tcp set global     

数据无法下载到外置SD卡

正Q:我将手机系统升级到Android4.4.2后,发现无法将下载的文件保存到外置SD卡上,应用程序也无法使用外置SD卡。请问这该如何解决?A:首先安装"RE管理器",然后用文本编辑器打开"/system/etc/permissions"目录下的Platform.xml文件,在permission name="android.permission.WRITE_EXTERNAL_STORAGE"group gid="sdcard_rw"/下面添加一行group gid="media_rw"/(注意段首对齐,"media_rw"和"/"之间