i3、j5双剑齐发，谁与争锋？

Intel在1月CES期间发布了32nm的移动版i3、i5两款采用CPU＋GPU加构的全新CPU。它既是Intel在210年上半年最重头的移动产品,也是广大笔记本电脑（以下简称“本本”）制造商最为关注的CPU产品。     

不完整的迅驰2奸商行径还是中庸之道

虽然发布已近半年,但作为Intel最新的移动计算解决方案,迅驰2仍然是高性能的代名词。一台笔记本电脑,只要挂上了”迅驰2”的名号,就好像是在向用户宣告“我很强”。     

感受最强移动CPUCorei7本本导购

在今年9月举行的秋季IDF2009上,Intel没有带来众望所归的新一代“迅驰”。但大家丝毫没有失望。因为Intel正式发布了号称“史上最快、最智能”的移动CPU——Corei7 Mobile和Corei7Mobile Extreme,以及相应的PM55 Express芯片组。     

用卡片机拍出的精彩夜景

夜晚总有一种让人捉摸不透的迷人魅力：它漆黑,但它也有鲜亮的一面;它安静,但它也有喧嚣的一面;它优雅,但它更有野性狂放的一面。所以,夜景总是摄影师的宠儿。通过夜景,我们才能真切感受到一个城市的节奏与活力。     

玩的就是概念！

笔记本电脑的电池续航能力一直是影。响其移动办公性能的主要因素,但目前锂电池的潜力似乎已被榨干,而传说中的燃料电池又迟迟不见踪影。怎么办呢？     

越吹越劲的本本超轻薄风

觉得这个标题似曾相识？嗯，记忆力不错。在上期杂志中，我为大家带来了一股“越吹越劲的数码轻薄风”。但上一次，我却没有提到数码产品中最受关注的笔记本电脑（以下简称“本本“）。为什么？因为现在本本上最流行的不是轻薄，而是更轻更薄的超轻薄!     

旧时“王谢堂前燕”，飞到寻常本本上

几年前．我们也许只能在电影中那些职业特工专用的笔记本电脑上看到指纹识别器。现如今．这项功能不但出现在民用笔记本电脑上，更出现在许多中低端本本上。 昔日那些可望而不可及的高端配置，已经逐渐普及开来。即使你不能在本本上投入太多的钞票，你也同样有权利追求这些东西。     

Validation of the MEDFICTS dietary questionnaire: A clinical tool to assess adherence to American Heart Association dietary fat intake guidelines

Background  

Dietary assessment tools are often too long, difficult to quantify, expensive to process, and largely used for research purposes. A rapid and accurate assessment of dietary fat intake is critically important in clinical decision-making regarding dietary advice for coronary risk reduction. We assessed the validity of the MEDFICTS (MF) questionnaire, a brief instrument developed to assess fat intake according to the American Heart Association (AHA) dietary "steps".     

Further Results on Guderley Mach Reflection and the Triple Point Paradox

Recent numerical solutions and shock tube experiments have shown the existence of a complex reflection pattern, known as Guderley Mach reflection, which provides a resolution of the von Neumann paradox of weak shock reflection. In this pattern, there is a sequence of tiny supersonic patches, reflected shocks and expansion waves behind the triple point, with a discontinuous transition from supersonic to subsonic flow across a shock at the rear of each supersonic patch. In some experiments, however, and in some numerical computations, a distinctly different structure which has been termed Guderley reflection has been found. In this structure, there appears to be a single expansion fan at the triple point, a single supersonic patch, and a smooth transition from supersonic to subsonic flow at the rear of the patch. In this work, we present numerical solutions of the compressible Euler equations written in self-similar coordinates at a set of parameter values that were used in previous computations which found the simple single patch structure described above. Our solutions are more finely resolved than these previous solutions, and they show that Guderley Mach reflection occurs at this set of parameter values. These solutions lead one to conjecture that the two patterns are not distinct: rather, Guderley reflection is actually underresolved Guderley Mach reflection.     

N450能否掀起上网本新高潮？

全新Atom N450 CPU的面世给日益平淡的上网本市场重新注入活力。这款集成了图形模块的CPU能给上网本带来怎样的改变？它又会给广大用户带来怎样的应用体验？