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适于脱水的白蘑菇属于热敏性物料，而目前的脱水工艺中热变性的确定主要由来源于感官的试验所确定。本文对白蘑菇这种加热易变性的物料采用差热扫描分析进行研究，以期在包含上述三类物质的复合体内，找到控制热变性温度的依据。本研究对适于脱水的白蘑菇进行了差热扫描变性分析，得出了五种含水率及五种加热速率下的热变性温度变化规律，并讨论了短期贮藏及瞬时高温对热变性温度区的影响，得出了白蘑菇的含水率、升温速率和瞬时高温 相似文献
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高校为了自身的发展蹴必须更新高校管理思维，以权变管理理念来发展高校的管理创新已成为必要。通过权变理论的内在逻辑分析，揭示了权变理论的精髓，提出了在高校管理机制中运用权变性因素分析的观点；同时对影响高校管理机制的权变性因素作了进一步探讨。 相似文献
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食品工业用淀粉经常用变性淀粉以达到提高其功能特性的目的，而交联变性是使用最广泛的一种淀粉改性技术。本文确定了淀粉交联反应的最佳三氯氟磷用量，最佳反应温度，最佳PH值，最佳反应时间。旨在为交联淀粉的制备提供最佳反应条件。 相似文献
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时变性是数据仓库的一个重要特征。探讨了在设计数据仓库模型时如何处理仓库数据的时间属性，以便于以后更好地进行数据管理和数据分析。 相似文献
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森林有限再生性与森林可持续经营 总被引：6，自引：0，他引：6
该文在分析森林功能多样性及其相互矛盾与统一性的基础上，阐述了森林资源有限再生性的基本概念、基本原理和森林资源再生性的可变性，提出了森林资源可再生性的时空尺度性，通过分析现实森林经营活动非可持续性的表现，探讨了影响森林可持续经营的基本因素和实现森林可持续经营的途径，提出了指导森林可持续经营的6项基本原则。 相似文献
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民以食为天,食品的安全关系到人的生存和身体健康。变性淀粉在我们国家发展迅速,它作为增稠剂、乳化剂、结着剂、保水剂应用于肉制品、面制品、膨化食品、米制品、糖果制品等许多食品之中。但变性淀粉的质量水平参差不齐,有的甚至会对食品安全构成威胁。本文从变性淀粉种类,质量指标等方面,浅述变性淀粉对食品安全的影响。 相似文献
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一提起变性，相信大多数人都会想起媒体上不时报道的变性人，这些人由于生理或心理原因，会形成“两性人”(或称“阴阳人”)的特征。他们经过手术，或是由男性变成女性，或是由女性改为男性。实际上，对于人类来说，变性现象只是发生在极个别人的身上，可是在其它种类的生物中，这种现象却可以说是司空见惯。 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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《中国科学院院刊(英文版)》2008,22(1):13-14
Aresearch project on the greenhouse cultivation of Swertia chirayita Buch Ham, a popular herbal drug used by the Tibetan people against liver and gallbladder diseases, recently passed the acceptance check by a panel of experts under the auspices of Qinghai Provincial S＆T Bureau. The feat was accomplished by researchers from the Lanzhoubased CAS Northwest Institute of Plateau Biology. 相似文献
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The research into the origins of domestic animals is of significance not only for understanding their development per se but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world the detailed scenario of the origin dispersal of domestic pigs in East Asia remains unclear.…… 《中国科学院院刊(英文版)》2008,22(1):7-7
The research into the origins of domestic animals is of significance not only for understanding their development per se, but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world, the detailed scenario of the origin and dispersal of domestic pigs in East Asia remains unclear. 相似文献
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Among the galaxy of research development organizations in northwest Beijing's Zhongguancun district known as China's Silicon Valley two are especially well-known to IT researchers: Microsoft Research Asia 《中国科学院院刊(英文版)》2008,22(1):47-49
Among the galaxy of research and development organizations in northwest Beijing＇s Zhongguancun district, known as China＇s Silicon Valley, two are especially well-known to IT researchers： Microsoft Research Asia （MSRA）, and, within a few blocks on the other side of the street, the CAS Institute of Automation （CASIA）. While most people in Chinese scientific organizations strive to move to a large foreign counterpart, Dr. Stan Z. Li （LI Ziqing） moves against the stream. 相似文献
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Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献
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《中国科学院院刊(英文版)》2014,(3):212-213
<正>In February 2014,the 30th Chinese Antarctic inland expedition team reported that they have successfully conducted the seeing measurement at the Antarctic Taishan Station using a Differential Image Motion Monitor(DIMM)developed by the Nanjing Institute of Astronomical Optic and Technology(NIAOT),Chinese Academy of Sciences.In astronomy,seeing is a physical parameter that describes the irregular movement and blur of the star 相似文献
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XIN Ling 《中国科学院院刊(英文版)》2014,(4):270-271
Amassive overhaul is coming to the Chinese Academy of Sciences （CAS）. To straighten its ＂fragmented, inefficient research＂, the academy has decided to restructure its 104 institutes for better teamwork. 相似文献
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SONG Jianlan 《中国科学院院刊(英文版)》2014,(4)
<正>DNA demethylation in mammalian zygotes,a biochemical process through which the parental genomes let go the epigenetic marks from their"past lives"to obtain totipotency,has long fascinated biologists:how does it happen?A joint team at the CAS Shanghai Institutes for Biological Sciences tells a surprising story. 相似文献
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China is one of the fastest growing economies worldwide. Are science and research also in the fast lane? We talked with LUO Yuan, scientist at the Institute of Coal Chemistry in Shanxi, and Axel Mosig, Professor at Ruhr University in Bochum, who has first-hand experience working and living in China. 相似文献