彻底让GeForce 6600GT下课 双敏 速配PCX7618GS Pro超强版

在上期的《同价位谁怕谁——GeForce7600测试专题》一文中．我们就曾经说到——由于nVIDIA没有限制GeForce 7600GS的核心及显存频率．再加上其核心架构与GeForce 7600GT一致．因此在今后的一段时间内，GeFopce 7600GS将成为市场上最耀眼的产品，同时也会成为各大显卡厂商最乐意“创新”的产品。从现在的情况来看，市场上的GeForce 7600GS已经是百花齐放．下面就来见识一下来自双敏家族的一朵花——PCX7618GS Pro超强版。[编者按]     

职业超频手捷波悍马HA01主板

悍马系列主板，是由台湾知名板卡生产商捷波打造的职业超频主板，专门针对超频玩家。为了研发悍马系列，捷波特别组建了一个开发小组，并命名为Hummer Studio，由台湾IT公司资深主板研发人Martin带队，Martin曾经负责过在2001年热卖的“龙板”的研发，广受超频发烧友的好评。[编者按]     

Biofilm development during the start-up of a sulfate-reducing down-flow fluidized bed reactor at different COD/SO4(2-) ratios and HRT

In sulfate-reducing reactors, it has been reported that the sulfate removal efficiency increases when the COD/SO4(2-) ratio is increased. The start-up of a down-flow fluidized bed reactor constitutes an important step to establish a microbial community in the biofilm able to survive under the operational bioreactor conditions in order to achieve effective removal of both sulfate and organic matter. In this work the influence of COD/SO4(2-) ratio and HRT in the development of a biofilm during reactor start-up (35 days) was studied. The reactor was inoculated with 1.6 g VSS/L of granular sludge, ground low density polyethylene was used as support material; the feed consisted of mineral medium at pH 5.5 containing 1 g COD/L (acetate:lactate, 70:30) and sodium sulfate. Four experiments were conducted at HRT of 1 or 2 days and COD/SO4(2-) ratio of 0.67 or 2.5. The results obtained indicated that a COD/SO4(2-) ratio of 2.5 and HRT 2 days allowed high sulfate and COD removal (66.1 and 69.8%, respectively), whereas maximum amount of attached biomass (1.9 g SVI/L support) and highest sulfate reducing biofilm activity (10.1 g COD-H2S/g VSS-d) was achieved at HRT of 1 day and at COD/sulfate ratios of 0.67 and 2.5, respectively, which suggests that suspended biomass also played a key role in the performance of the reactors.     

追寻真实视界144Hz刷新率华硕VG278HE评测

在家里用电脑显示器看3D电影总觉得少了点什么,是屏幕不够亮、不够大？还是画面效果不够好呢？对于追求极致体验的高清用户和游戏玩家来说,NVIDIA都已经推出更优秀的3D Vision2技术了,怎能让显示器成为你获得更优视觉体验的拦路虎？下面,就请随小编一同体验华硕V G278H E,一款将刷新率提升至144Hz的3D显示器新星！     

酷睿再度蜕变—新一代Core i5＋P55全体验

Core i5是何方神圣？虽说有不少玩家对这个Intel跳票多次的CPU命名仍表示怀疑,但我们今天要给大家带来的却是实实在在的Core i5或者保守而准确地说是,Lynnfield核心的酷睿处理器的体验报告。于近期正式上市的这款处理器也是继Bloomfield核心Core i7上市后,Nehalem家族又一款重量级产品。这款神秘的处理器,能否将酷睿系列推向一个新的高潮,让我们从测试中慢慢体验……     

苹果又熟时爱上Leopard

苹果最新款的iMac机型我们已经在07年12期的杂志中领略过了,除了硬件方面的提升和创新,实际上它在操作系统方面也作了全新的升级：iMac配备了最新发布的Mac OS X 10.5 Leopard系统,它是一款真正的64位操作系统,提供了300多项新功能,是苹果Mac OS X的第六个重要版本。今天我们将结合iMac来体验这一令人叹为观止的全新系统。 控制面板在哪？“我的电脑”图标在哪？鼠标右键在哪……用惯PC的用户难免会有些不适应Mac OS的操作。不过对于第一次接触电脑的用户来说,Mac Os简洁易用、极具人性化且富有创意的界面令人感觉非常亲切,爱慕之情不禁油然而生。     

尖峰对决RV670 VS G92

进入DirectX 10时代后,AMD-ATI(以下简称ATI)的显卡产品,从Radeon HD 2900到Radeon HD 2600/2400,似乎在游戏性能方面只能说差强人意,并没有占据太大的优势.不过随着期待已久的全新高端核心RV670如约而至,让人对核心代号分别为"复活者"和"角斗士"的两款RV670显卡再次充满信心.这两款显卡能否真正履行自己的神圣使命让A卡重获新生,通过下面的A卡与N卡尖峰对决你会找到答案……