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地震调制比及其在华北地震中期预报中的应用 被引量:20
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作者 王炜 宋先月 +1 位作者 谢端 王琤琤 《地震》 CSCD 北大核心 2001年第2期7-12,共6页
通过对调制比预报地震方法进行改进 ,并使用改进后的地震调制比 Rm10 对华北地区进行空间扫描。结果表明 ,中强地震前 1~ 3年 ,未来震中周围通常出现 Rm10 中期异常区 。
关键词 地震调制比 引潮力 空间扫描 地震中期预报 地震活动 解发作用 调制作用
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Dynamic simulation of hydrodynamic model of drum level wave action and sloshing
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作者 曹晓华 曹小玲 +1 位作者 蒋绍坚 苏明 《Journal of Central South University of Technology》 SCIE EI CAS 2007年第6期814-819,共6页
In order to build the model of the drum level wave action and sloshing, based on the method of modularization modeling, the hydrodynamic model of drum level wave action and sloshing was developed, and dynamic simulati... In order to build the model of the drum level wave action and sloshing, based on the method of modularization modeling, the hydrodynamic model of drum level wave action and sloshing was developed, and dynamic simulation researches were carried out based on the model. The results indicate that both drum level and drum length have functional relations with period of drum level wave action and sloshing. When the drum level decreases or drum length increases, the period of drum level wave action and sloshing increases, density of liquid and number of sub-module division have little influence on the period of drum level wave action and sloshing. The model was validated by the analytical solution theory of liquid’s wave action and sloshing in cuboid container, and the 3D graphics of drum level wave action and sloshing was also obtained. The model can dynamically reflect the rules of wave action and sloshing of water in the container exactly. 展开更多
关键词 hydrodynamic model model of wave action and sloshing drum level combined cycle heat recover steam generator (HRSG) natural frequency/period analytical solution
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Process development for producing a food-grade glucose solution from rice straws
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作者 Chih-Heng Wang Wen-Hua Chen +3 位作者 Hwai-Shen Liu Jinn-Tsyy Lai Cheng-Che Hsu Ben-Zu Wan 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2018年第2期386-392,共7页
In this paper, processes for producing a food-grade glucose solution through enzymatic hydrolysis of celluloserich solids obtained from rice straws are presented. The rice straws were pretreated by acid-catalyzed stea... In this paper, processes for producing a food-grade glucose solution through enzymatic hydrolysis of celluloserich solids obtained from rice straws are presented. The rice straws were pretreated by acid-catalyzed steam explosion, and the reaction efficiency, toxicity control, and process economic feasibility were studied. Mass transfer resistance to the hydrolysis reaction was reduced by grinding with glass beads. A higher glucose concentration could be obtained by feeding more cellulose in the hydrolysis reaction; however, this also resulted in the production of undesired byproducts. Thus, a soaking process for the cellulose solids in water was developed to effectively reduce the generation of byproducts in the hydrolysis reaction. The resulting food-grade glucose solution can provide 414 kilocalories per liter, and could be used during a food-shortage crisis in the future.The current production cost is estimated to be 0.82 USD·L^(-1). 展开更多
关键词 Cellulose Enzymatic hydrolysis Food-grade glucose solution Rice straw Biochemical engineering
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Hydrolysate of corn starch saccharified with a dual-enzyme system and the effect on the crystallization of itaconic acid when used in fermentation
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作者 李丕武 Chen Xiguang +1 位作者 Liu Jianjun Wang Lingchong 《High Technology Letters》 EI CAS 2008年第3期316-320,共5页
An improved process of hydrolysis of corn starch was adopted in the production of itaconic acid (IA), the aim was to decrease the unfermentable reducing sugar (RS) in the medium from the beginning of the fermentat... An improved process of hydrolysis of corn starch was adopted in the production of itaconic acid (IA), the aim was to decrease the unfermentable reducing sugar (RS) in the medium from the beginning of the fermentation and to increase the crystallization efficiency of IA from the fermentation broth. The glucose (GS) syrups saccharified by several combinations of glucoamylase and pullulanase were investigated and used as the carbohydrate source of the fermentation medium for the spore-initiated submerged fermentations experiments. Compared with the conventional process (with pullulanase controlled), the improved process decreased th.e RS residue in the fermentation broth from 3.01g/L to 1.35g/L and from 4.25g/L to 3.25g/L when the original RS of the medium were 100 and 120g/L, respectively. The crystallization efficiency of IA increased from 65% to 78.8% and from 69.58% to 82.81% with the original RS being 100 and 120g/L, respectively. 展开更多
关键词 itaconic acid PULLULANASE SACCHARIFICATION
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The HINT ProjectmExploring the Use of New Technologies in Heritage Interpretation
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作者 Robina R. Barton David Cooper +5 位作者 Anne Guyomard Sophie. C. Justice Peter Samsom Elizabeth Picket Cathrien. L. Posthumus Nathalie Cayla 《Journal of Earth Science and Engineering》 2014年第3期156-174,共19页
The HINT project is a four-country collective of Global heritage interpretation. HINT is a two-year project part funded Geoparks researching the uses and benefits of new technologies in by the European Leader Programm... The HINT project is a four-country collective of Global heritage interpretation. HINT is a two-year project part funded Geoparks researching the uses and benefits of new technologies in by the European Leader Programme. The partners are Geopark Shetland (Scotland), Chablais Geopark (France), North Pennines Area of Outstanding Natural Beauty (England) and Geopark de Hondsrug (The Netherlands). Each partner has developed a pilot project to investigate the practicalities of interpreting and communicating heritage, especially geological heritage, using a particular technology. An overview of each of the four pilot projects is given. The overall aim of the pilot projects is to develop best practice in using new technologies for heritage interpretation and to share information and ideas within the project partnership and with geoparks and heritage organizations around the world. This paper, developed by the HINT partners, aims to give an insight into the practical process of developing interpretive tools using new technologies. Some common problems are highlighted and some ways in which these can be addressed are shown. 展开更多
关键词 TECHNOLOGY INTERPRETATION EDUCATION TOURISM heritage.
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Intelligibility and Segmental Phoneme Repair Strategies in English-as-a-Lingua-Franca Interactions among Chinese and Japanese Speakers of English 被引量:1
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作者 乔治.欧尼尔 《Chinese Journal of Applied Linguistics》 2016年第4期379-400,498,共23页
This is a qualitative study of the types of segmental repair that maintain mutual intelligibility in English-as-a-Lingua-Franca interactions among Chinese and Japanese speakers of English (Jenkins, 2000; Matsumoto 20... This is a qualitative study of the types of segmental repair that maintain mutual intelligibility in English-as-a-Lingua-Franca interactions among Chinese and Japanese speakers of English (Jenkins, 2000; Matsumoto 2011; O'Neal 2015a, 2015b, 2015c, 2015d, 2016, in press). Repair refers to a set of practices through which conversation participants stop the ongoing action to attend to actual or potential problems 1:o the maintenance of mutual intelligibility (Schegloff, 2007; N^meth, 2012). Although anything can potentially be a problem to the maintenance of mutual intelligibility, this study focuses only on instances of the repair of segmental phonemes so that the pronunciation remains mutually intelligible. Using conversation analytic methodology to examine a corpus of repair sequences concerning pronunciation among Chinese and Japanese students at a Japanese university, this study claims that three segmental repair strategies are used in the interactions to maintain mutually intelligible pronunciation: segmental phoneme modification, segmental phoneme insertion, and segmental phoneme deletion. 展开更多
关键词 segmental repair INTELLIGIBILITY English as a lingua franca (ELF) segmental phoneme insertion segmental phoneme deletion segmental phoneme modification
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