Subjects: Library Science，Information Science >> Library Science submitted time 2023-12-28
Abstract： Purpose/significance The author is responsible for document delivery work on the Jiangsu Engineering Technology Literature Information Center platform where mechanical repetitive operations account for a large proportion, seriously encroaching on work time. Moreover, the literature requirement is 24 hours, and as a duty librarian, it can only be transmitted within a limited time, making it difficult to ensure the timeliness of transmission. So, the author attempts to develop a document delivery robot to automate the completion of document delivery work. Method/process The paper takes the Jiangsu Engineering Technology Literature Information Center platform as an example, based on the Selenium framework, designs and develops a document delivery robot, which realizes the entire process of logging in, checking in, obtaining orders, searching, downloading, uploading, completing literature transfer, and then continuing to wait for dispatching. Result/conclusion After a month of operation analysis, it was found that although the document delivery robot cannot completely replace manual delivery, it can effectively solve the high proportion of mechanical repetitive work in the literature delivery process, improve the delivery efficiency, and expand the service time, allowing the delivery librarians to have more energy to solve difficult to find literature such as special literature. Finally, document delivery robots also have reference significance for the field of document delivery and other related scenarios.
Peer Review Status:
Awaiting Review
Subjects: Biology >> Bioengineering Subjects: Engineering and technical science >> Bioengineering submitted time 2018-12-11
Abstract： Carbon dioxide partial pressure (pCO2) is an important parameter in mammalian cell culture, which come from cell respiration, bicarbonate in culture media and CO2 added during culture for pH maintenance. Generally, pCO2 is not precisely controlled like pH in cell culture, but it is crucial to maintain pCO2 level within a reasonable range, usually ranging from 30 to 80 mmHg. Higher (> 80mmHg) or lower (< 30mmHg) pCO2 levels were reported to be detrimental to cell growth, metabolism, productivity and product quality. Higher pCO2 is always encountered during scale-up, especially for the high density perfusion culture. Therefore, pCO2 difference between small scale (< 15 L) and large scale (> 200L) needs to be considered. This review illustrates the effects of pCO2 on cell growth, metabolism, productivity and product quality. In addition, the approaches to control pCO2 during scale-up are also discussed. " "
Peer Review Status:Awaiting Review
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