2009秋季广东家具展

9月4日至8日,第22届国际名家具（东莞）展览会及同期举办的名家具机械、材料展．名家具家居饰品展在东莞厚街召开．展会吸引了840多家国内外参展商．68万多专业买家．其中海外买家近5000人。     

新加坡：高品质的亚洲家具展示平台

3月1日到5日．2007新加坡国际家具展暨第24届亚细安家具展在新加坡国际展中心盛大召开。来自28个国家的510位参展商向来自117个国家的17322位专业观众展示了超过35万件高质量的产品．展会现场签单估计达到24亿美元。     

台资家具企业在中国大陆的发展——台湾家具工业同业公会理事长陈丘先生访谈录

台资家具企业进入中国大陆已有十多年的历史了，并且发展迅速。2004年，从中国大陆出口的约103亿美元的家具总出口额中，台资企业占了56亿美元。台资企业在中国家具业中占有了这么重要的位置，但由于信息渠道的原因，我们对台资企业在中国大陆的发展状况一直了解不多。这次，本刊有幸采访到台湾家具工业同业公会的理事长陈丘先生，请他全面介绍了台资家具企业在中国大陆的发展状况。     

2006中国家具行业趋势大家谈

中国家具行业在高速发展了20多年后迎来了第二个发展阶段，即由量的发展转向质的发展，企业的升级与行业的整合正在展开生产企业、流通企业，材料配件企业，服务性企业在分工中越来越完善行业的发展正更加多元与健康。为分析2006年中国家具产业的发展态势．《家具》杂志在年初征集了来自国内家具行业的各方人士从不同的视角对趋势的看法．以下按照收到的内容整理成综合访谈。[编者按]     

冠状动脉结扎的病理模型的高频心电研究

在三年时间内用狗的心脏作动物模型实验，研究了宽带心电图的特点，研究了近２０条正常狗在宽带心电图上的高频细节：切迹（ｎｏｔｃｈ）和转折（ｓｌｕｒ），并对４条狗进行冠状动脉结扎的慢性病理模型实验，研究心肌急性缺血后宽带心电图的特点，发现宽带心电图能敏感地反映心肌的病理性改变，宽带心电图上的切迹经过特征提取后能够明显地区别正常的病变情况（ｐ＜０．０１）．本文研究后认为，传统上只对切迹和转折进行计数的方法并不合适，而且转折不宜用作病理指标．作者认为：轻度病变情况下宽带心电图高频成分的特异性改变可能是由小块心肌因病变引起局部兴奋传导阻滞所至     

On generalized two-dimensional cross constellations and the opportunistic secondary channel

An optimum bits-to-symbol mapping for square constellations is introduced which allows a simple detection in narrow-sense quadrature amplitude modulation (qam) systems. Then, a family of two-dimensional generalized cross constellations is presented as well as upper and lower bounds on the symbol error probability over an ideal band-limited channel which generalize those previously known for conventional qam. The application of this scheme to the opportunistic secondary channel is analysed and it is shown how fractional rates (in bits per 2-dimensional signal) can be supported on 2D generalized qam systems. These signaling schemes are compared with multidimensional generalized constellations recently proposed by Forney and Wei.     

Spurenstoffe in der aquatischen Umwelt – Einleitung

The occurrence, effects and significance of organic trace substances in aquatic environments have been the topic of discussions for a wide range of scientific and administrative experts in recent years. These widely used compounds can occur in very small concentrations in aquatic environments; they also have broad activity spectrums and diverse environmental impacts, making this a highly complex topic. Because the various specialist fields, such as chemical safety and water protection, are now facing a situation in which the same substance is relevant in a wide variety of different areas, they are increasingly combining and coordinating their respective established approaches. This article provides a basis for dealing with the topic of organic trace substances in aquatic environments by defining terms and drawing attention to the significance and use of these substances in society. It also presents background information and potential professional approaches to the subject. It offers an overview of the main topics of current discussions, which will be dealt with in detail in further articles.     

All‐Carbon Electrode Molecular Electronic Devices Based on Langmuir–Blodgett Monolayers

Nascent molecular electronic devices, based on monolayer Langmuir–Blodgett films sandwiched between two carbonaceous electrodes, have been prepared. Tightly packed monolayers of 4‐((4‐((4‐ethynylphenyl)ethynyl)phenyl)ethynyl)benzoic acid are deposited onto a highly oriented pyrolytic graphite electrode. An amorphous carbon top contact electrode is formed on top of the monolayer from a naphthalene precursor using the focused electron beam induced deposition technique. This allows the deposition of a carbon top‐contact electrode with well‐defined shape, thickness, and precise positioning on the film with nm resolution. These results represent a substantial step toward the realization of integrated molecular electronic devices based on monolayers and carbon electrodes.     

制笔技术词典(18)

一、笔的命名、分类和组成综合《笔》pen,据我国历史记载,我国很早有了能“染墨成字”的工具。秦统一六国后才采用“笔”作为这种工具的代名词。《说文释例》卷十九《聿部》“楚谓之聿、吴谓之不律,燕谓之弗”。秦把“竹、聿”合成为笔。我国文字改革以后“?”简化为“笔”,把“竹、毛”合成为笔。现今《辞海》把笔解