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文物热湿环境控制技术研究及应用 被引量:2
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作者 张学军 郑幼明 +2 位作者 王恒旭 孙大明 李珣 《化工学报》 EI CAS CSCD 北大核心 2014年第S2期1-8,共8页
针对传统恒温恒湿空调系统中表冷器定露点处理能耗大的缺点以及文物储藏环境温湿度一致性要求较高的特点,提出了表冷器热湿解耦节能技术以及一源多位温湿度控制技术,采用双回路表冷器热湿独立控制装置和PID分程控制方法,实现了博物馆文... 针对传统恒温恒湿空调系统中表冷器定露点处理能耗大的缺点以及文物储藏环境温湿度一致性要求较高的特点,提出了表冷器热湿解耦节能技术以及一源多位温湿度控制技术,采用双回路表冷器热湿独立控制装置和PID分程控制方法,实现了博物馆文物储存环境中温湿度的精确控制。目前,该系统已成功应用于浙江省十余项博物馆文物保护工程中,实际节能率达到30.7%以上。 展开更多
关键词 文物环境 表冷器 热湿独立控制 一源多位
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Television Programs for Teenagers and the Use of Multimodality in Knowledge Popularization
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作者 Laura Santamaria Margarida Bassols Anna Torrent 《Journalism and Mass Communication》 2011年第2期123-135,共13页
The aim of this work is to study the interaction of spoken words and images that are used within programs targeted to popularize knowledge among teenagers. We will look into the program Bit@bit developed by Television... The aim of this work is to study the interaction of spoken words and images that are used within programs targeted to popularize knowledge among teenagers. We will look into the program Bit@bit developed by Television de Catalunya, which is intended to disseminate computer concepts, tools and procedures. In this kind of program, one can find spoken language (on/off screen voices, interviews, etc.), other oral material (sounds, music, songs), written language (descriptions, title sequences, inserts and Uniform Resource Locator, or electronic addresses), and other visual material (film cut images, advertising, other TV programs, cartoons, films, both location or studio images, depicting reality, or computer screens, or logotypes). The profusion of multimodal elements used in this program helps to keep the young audience's attention. The use of references to their world or knowledge, as a target group, is based on interplay among different semiotic strategies. At the same time, the entire program's multi-segmentation into short video clips, combined with a fast paced sound track helps its audience to understand the specialized explanations presented. Of all the multimodal wealth that the program presents, we will concentrate only on the relationship between the words and the images (leaving other secondary semiotics to one side), the main strategy for achieving the objective of transmitting knowledge and winning adolescent audiences. 展开更多
关键词 discourse television knowledge popularization MULTIMODALITY TEENAGERS
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