摄影精粹

~~摄影精粹@张齐     

计量文摘精粹

纳米计量与传递标准;探究我国称重传感器的现场使用和调试;移动通信的手持无线测量仪器;时变延迟网络化控制系统中新型控制器的设计;定频调幅式电涡流传感器电路及其在防水数显卡尺中的应用     

计量文摘精粹

IDDQ测试全面系统化的研究;HIOKI3280-10型钳形数字万用表电阻测量系统测量不确定度的评定及动态预测;NIST时间频率溯源链的重要特征与思考;国际标准ISO5167：2003(E)的主要变化及应采取的应对办法;大口径超光滑表面粗糙度非接触检测系统;     

计量文摘精粹

1 特殊环境下熔体温度的连续测量作者 :李小波摘要 :文章根据测温的特殊环境 ,从测温的原理出发 ,设计了热电偶测温端的结构以及与之相连数据采集和处理计算机系统 ,并用组态软件编写该系统的采集程序。通过实践检验 ,该系统能够满足此特殊环境下熔体温度连续测量和分析的需要。关键词 :石墨气氛　熔体温度　计算机测量(摘自《计量与测试技术》 2 0 0 2年第 3期 )2 冗余技术与长度测量作者 :姚俊武　张林仙摘要 :文章主要介绍了冗余技术在长度计量中的应用 ,在测量过程中 ,通过给测量系统提供一定的过约束 ,从而有效地提高测量精度。关键词…     

银盐照相与数码照相

本文探讨了传统银盐照相与数码照相的现状和发展前景。文中详细介绍了作为图像传感器的彩色胶卷和CCD(CMOS)的特性及其最新进展。尽管面对数码相机的严峻挑战，文章引用国际照相市场有关信息，预测传统彩色照相材料仍将会有缓慢的增长。一种融合传统银盐照相和数字成像两者特点的混合成像体系正在兴起。银盐照相与数字成像技术的融合，这将是21世纪成像技术的发展方向。     

商业摄影中的数字影像解析

一、前言 在数字技术进入到摄影领域后,任何一次技术上的革新都无法与数字技术对摄影的影响相提并论,数字技术不仅大大缩短了摄影的工作流程,而且丰富了摄影在艺术、商业等领域的表现手段,并且使摄影更加大众化、普及化.在当下,随着市场的需要,高品质的数字影像在商业摄影领域发挥着举足轻重的作用,数字技术已经完全渗透到商业摄影的整个工作流程当中.     

Kirlian Photography

Kirlian photography records the corona discharge that commonly surrounds any conductive object placed in a dielectric enclosure at atmospheric pressure within a high voltage/high frequency electric field. That generated by a Tesla coil is particularly effective. Kirlian photography was popular in the decade between 1970 and 1980, and leaves and the tips of fingers were common subjects. The discharge usually took the form of bluish spicules and glows proceeding from sharp points and edges of the specimen, and around ridges and elevations in its interior. The overall appearance of the discharge is dependent on many factors, and may continually change on a small scale. Reproducibility is therefore poor. There is no satisfactory proof of claims that the coronae around finger tips reflect the physical or mental health of the subject or can disclose psychic influences.     

出发!到大自然中去 32条你不得不知的野外摄影技巧

从装备到技术,为你的野外摄影计划做好准备!冬日已至,春天还会远吗?在室内暖炉边待了一个冬天的你,是不是已经觉得筋骨变得疲惫,身心也慵懒了下来呢?那么就同我们一起为即将来临的春天做好准备,打点你的相机和行装,等着去大自然里放飞你憋屈了一整个冬季的心灵吧!我们特地为你提前奉上这十余页     

Erotic Photography

Abstract

In his exhibition catalogue The Body Exposed: 150 Years of the Nude in Photography (Zurich 1995), Michael Kohler expresses the hope that ‘nobody will shy away from taking a closer look at nude photography, its aesthetics, its history and its ideology under the illusion that there is nothing left to discover; for it's exactly the opposite’. In fact, true academic attention toward the nude photograph has been surprisingly limited, the genre leaving behind instead a trail of pseudo-academic coffee-table books and prodigious, but unanalysed, collections. This is perhaps the reason that Michelle Olley's book is at once so heartening and so disappointing. Venus presents an anthology of erotic, and predominantly nude, photography of women spanning approximately the last 40 years. Unfortunately, where such a collection could be a prime opportunity to finally provide a cogent and analytical narrative of the genre's recent history, Olley instead offers a sparse text that uses the photographs merely as evidence of the modern world's sexual liberation. She asserts that ‘Our attitudes toward sex and sexuality, women and the depiction of erotic subjects has shifted, so that society no longer hides the nude away from us as something forbidden and too shocking even for adults’. Her argument is supported by a cursory history of the female nude in painting and photography and by references to ‘restrictive’ Victorian morality. This single-mindedness glosses over the diversity of issues posed by the photographs in the collection — issues such as identity, isolation and interaction, confinement and freedom, universality and incident.