河南洛阳天津桥的演变史

河南洛阳龙门道上，有一孔古朴的石拱桥，上建小亭，为隋唐天津桥故址残迹。天津桥经历了的历代的兴衰，见证了从隋炀帝大业元年到新中国成立后的历史和发展。     

电流变流体的研究进展

电流变流体是近年来逐渐受人们重视的一种功能材料，本文介绍其国内、外发展过程及研究现状。     

后工业时代米兰单功能城区更新

在物化的形式上,解释米兰城市发展历史上的单功能城区的改造意义,并由此分析单功能城区更新的经验:单功能城区向混合居住模式的更新是发展方向;城区的功能重新定义对城区发展有重要意义;以新的建设为基础,发展城区自身的特色,做到城市在更新和特色之间的协调。     

莺-琼盆地的独特埋藏史

通过沉积速率线性外推剥蚀厚度恢复、脱压实和异常高压以及古水深校正的单井埋藏史和连井埋藏剖面及构造沉降分析,发现莺-琼盆地是个多旋回沉积盆地,其沉积物埋藏过程可分为早期缓慢浅埋和晚期快速深埋两大阶段.这种独特的埋藏历史不仅是储层孔隙增生与保存的主要控制因素之一,而且极大地影响了烃源岩于酪根热解反应路径、烃类的运移和聚集,异常高压的发育以及所发生的复杂的水(气)—岩相互作用.涸11-4油田位于南海北部湾盆地涸西南凹陷,距广西北海市103km,离涸10-3油田17km.油田于1993年9月19日投产,目前开发形势较好,产量、压力稳定.在开发实践中我们体会到,要提高油田开发水平,搞好油藏监测是非常重要的.1钻井和完井过程中的油藏监测     

Development of a simple model for batch and boundary information updation for a similar ship’s block model

In early 2000,large domestic shipyards introduced shipbuilding 3D computer-aided design (CAD) to the hull production design process to define manufacturing and assembly information.The production design process accounts for most of the man-hours (M/H) of the entire design process and is closely connected to yard production because designs must take into account the production schedule of the shipyard,the current state of the dock needed to mount the ship’s block,and supply information.Therefore,many shipyards are investigating the complete automation of the production design process to reduce the M/H for designers.However,these problems are still currently unresolved,and a clear direction is needed for research on the automatic design base of manufacturing rules,batches reflecting changed building specifications,batch updates of boundary information for hull members,and management of the hull model change history to automate the production design process.In this study,a process was developed to aid production design engineers in designing a new ship’s hull block model from that of a similar ship previously built,based on AVEVA Marine.An automation system that uses the similar ship’s hull block model is proposed to reduce M/H and human errors by the production design engineer.First,scheme files holding important information were constructed in a database to automatically update hull block model modifications.Second,for batch updates,the database’s table,including building specifications and the referential integrity of a relational database were compared.In particular,this study focused on reflecting the frequent modification of building specifications and regeneration of boundary information of the adjacent panel due to changes in a specific panel.Third,the rollback function is proposed in which the database (DB) is used to return to the previously designed panels.     

长江科学院野外科学观测与科学考察回顾及展望

野外科学观测与科学考察既是基础性科技工作,又是自主创新突破口。近年来,长江科学院设立了野外科学观测中心,初步形成覆盖长江流域,涵盖生态、环境、资源及灾害防治等领域的野外科学观测研究站网体系,持续开展长江流域野外科学观测和多专业综合性科学考察。回顾了长江科学院野外科学观测和科学考察的发展历程,从基础条件、观测成果、科技支撑、骨干队伍以及社会影响等方面,系统总结了长江科学院在野外科学观测与科学考察方面取得的成绩。未来将着重做好基础设施建设、长期观测与考察、科学研究与示范、合作交流以及人才队伍建设等方面工作,以期为长江流域高质量发展提供支撑。     

The Mona Lisa identification: Evidence from a computer analysis

A recent computer-aided study identified the model immortalized in Leonardo da Vinci's celebratedMona Lisa to be none other than the artist himself. A follow-up investigation empolying similar techniques identifies the subject of asecond HiddenMona Lisa by the same artist. Analysis of photographic and x-ray images indicates that Leonardo first created a sketch of Isabella, Duchess of Aragon, which he later painted over with theMona Lisa, using himself as the model.     

Note on the use of the term subject in pre-1886 discussions of thought-transference experiments.

In response to K. Danzinger's (see record 1986-00068-001) suggestion that the first use of the term subject in the English-language psychological literature occurred in 1886 in the context of experiments involving the hypnotic state, the present author points out that there are examples of the use of the term in discussions of experiments on thought transference published by the Society for Psychical Research in the 1880's. (8 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)