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To extract polysaccharide of Camellia Cake, cellulase-assist method was used. The extraction conditions were: temperature 50°C; time 3h; adding amount of cellulase 0.35%. The extract rate of camellia cakes polysaccharide is 26.62%, The adequacy of this model was confirmed.
recent accidents of electric power cut in many south towns caused by snowstorm show the significance of electric power system security. High voltage cable terminal plays a very important part in the electric power supply system. Rubber stress cone is the key component of high voltage cable terminal, and its property is the main question in making high voltage cable terminal operates safely. In this...
An efficient organic photovoltaic devices (OPVs) have been realized by using a new amorphous absorption material, bis(4-(N-(l-naphthyl)phenylamino) phenyl)fumaronitrile (NPAFN). NPAFN exhibits a hole mobility of 0.07 cm2/Vs as determined by the thin-film transistor. The structure of double-heterojunction OPV, ITO/NPAFN/fulerene/bathocuproine/Al, shows high performance with open circuit voltage of...
Moodle is an open source and one of the most popular learning management systems (LMS) currently. Developers can customize functionality and modules for educating purpose. When integrating with other systems, developers have to deal with the barrier that comes from Moodle servers with different version or other human resource system. Therefore it will be valuable for allowing teachers who are at different...
After the global economic crisis, enterprises tend to lower their operating cost to improve their competitive advantages. Among different kinds of operating costs, lowering manufacturing cost brings the most significant effect. Among different manufacturing processes, not only the correctness and efficiency during producing products, but also those losses and expenses result from critical exception...
The discarded household appliance pollution problems have aroused more and more attention, as the potential value is gradually being recognized by enterprises. However, the current recycling and disposal approaches are too simple and not conducive to the recycling of products and value recovery, which damaged the environment extremely seriously. This paper firstly discusses the current domestic situation...
Based on the function of the household appliance wastes recycling, gathering, detecting, classification, disassembling, regeneration, waste disposal and the strategic, economical efficiency, systematicness principle, we make up a recycling and disposal mode of the household appliance wastes. Starting from this model, an optimization model of returned logistics network is established to maximize the...
Learning management system (LMS) plays a critical role in current pedagogy. Along with the concept of Web 2.0, Web has become an interactive platform for contribution and collaboration. Moodle open source LMS is one of the most popular learning management systems currently. It will be valuable for the learners to view the teaching materials online and perform annotating operations on them which are...
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