科技论文照片图中的标度问题   总被引：1，自引：0，他引：1  

林清华  徐用吉  黄炜  李金丽 《编辑学报》2008,20(1):41-41

不少科技论文常采用照片图来表述有关内容.照片图包括金相显微照片、扫描电镜照片(SEM)、透射电镜照片(TEM)等.有关国家标准要求,照片图上应该有表示目的物的标度或提供放大倍数[1],标度作为照片图中的细节部分不应被忽视.  相似文献   

等离子体粒子加速器     

JohnM．Dawson  黄炜译  王世德 《科学中国》1989,(7):11-14

等离子体中产生的电场能够使电子加速以获得高能。这个方法可望使场强比能量最大的传统加速器的场强高出10，000倍。  相似文献   

基于广度学习的异构社交网络敏感实体识别模型研究     

黄炜  童青云  李岳峰 《情报学报》2020,39(6)

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"比特"与"字节"单位符号规范化标注建议   总被引：1，自引：1，他引：0  

黄炜  徐用吉  林清华 《编辑学报》2007,19(2):104-105

国家标准未对单位"比特"和"字节"的符号做出明确规定,因此,在论文中对它们的标注很不统一.针对这一问题,简要介绍比特、字节的物理概念,分析"比特"和"字节"单位符号的使用现状,并提出规范化标注的建议.  相似文献   

用好数字 用活数字     

黄炜  王波 《视听界》2007,(2):61-62

新闻采访与报道往往离不开数字。数字是事物量变和质变的尺码,是记者在采访报道中无可逃避而又苦苦寻觅的绝好素材,其重要性不言而喻。但是,如果数字用得过多过滥,或者用得不恰当,新闻报道就会枯燥乏味,难以给受众留下深刻的印象,它所承载的意义也就难以显现,甚至还会成为阅读收听、收看的障碍,这已经成为当今新闻报道的一大问题。笔者总结如下几种方法,供参考。  相似文献   

Submaximal exercise and maturation in 12-year-olds     

Armstrong N  Welsman JR  Kirby BJ 《Journal of sports sciences》1999,17(2):107-114

The aim of this study was to examine the maturation responses of young people to submaximal treadmill exercise. Body mass was controlled using both the conventional ratio standard and allometric modelling. Ninety-seven boys and 97 girls with a mean age of 12.2 years completed a discontinuous, incremental exercise test to voluntary exhaustion. We measured peak oxygen uptake (VO2peak) and VO2 when running at 8, 9 and 10 km x h(-1). Sexual maturation was assessed visually using Tanner's indices of pubic hair. Peak VO2 was significantly higher in boys (P<0.001); this was still the case when the influence of body mass was covaried out. During submaximal exercise, no significant differences in absolute VO2 were observed between the sexes (P>0.05); however, values of VO2, expressed both in ratio with body mass and adjusted for body mass using allometry, were significantly greater in boys than in girls (P<0.001). For absolute VO2, significant main effects (P<0.05) were seen for maturity at each exercise stage. With the influence of body mass controlled using either the ratio standard or allometry, no significant main effects (P>0.05) for maturity were observed. Our results indicate that boys are less economical than girls while running at 8-10 km x h(-1) and that, independently of body mass, maturation does not influence the VO2 response to submaximal exercise.  相似文献   

Ironic processing and static balance performance in high-expertise performers   总被引：1，自引：0，他引：1  

Dugdale JR  Eklund RC 《Research quarterly for exercise and sport》2003,74(3):348-352

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编辑加工中常见问题辨析     

黄炜  徐用吉  安碧丽  林清华 《编辑学报》2007,19(1):15-16

分析编辑加工中经常遇到的国家标准没有明确规定或容易出错的问题,如计算机仿真图的编辑加工、直径的表示方法和缩略语的使用等,并提出相应的建议.  相似文献   

浅议文后参考文献中会议论文的著录规则     

黄炜  徐用吉 《科技与出版》2007,(2):43-44

会议论文是科技论文中经常引用的一类参考文献,《GB/T7714—2005文后参考文献著录规则》将其归属于专著中的析出文献,对其著录项目和格式有着详细的规定。如果仅列出必备项目,其著录格式为:析出文献主要责任者.析出文献题名[C]∥会议论文集题名.出版地:出版者,出版年:析出文献页码.。比照专著的著录项目可知,会议论文的出版项著录内容与专著的相同。事实上,翻阅论文后面的参考文献不难发现,专著的著录一般比较规范,而会议论文的著录则存在诸多问题,并且问题主要集中在出版项的著录上。为什么相同的出版项著录内容,却有着不同的著录结果?会…  相似文献   

The influence of anxiety on visual attention in climbing   总被引：2，自引：0，他引：2  

Nieuwenhuys A  Pijpers JR  Oudejans RR  Bakker FC 《运动与训练心理学杂志》2008,30(2):171-185

The object of the current study was to investigate anxiety-induced changes in movement and gaze behavior in novices on a climbing wall. Identical traverses were situated at high and low levels on a climbing wall to manipulate anxiety. In line with earlier studies, climbing times and movement times increased under anxiety. These changes were accompanied by similar changes in total and average fixation duration and the number of fixations, which were primarily aimed at the holds used for climbing. In combination with these findings, a decrease in search rate provided evidence for a decrease in processing efficiency as anxiety increased.  相似文献