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This paper proposes a parameter self-learning proportional periodic temperature control algorithm that is specific to the characteristics of space environment temperature change. The algorithm is able to identify system parameters and control parameters, and comes up with proper control strategies with respect to environment temperature. It can be applied to objects whose system parameters are unknown,...
Drought is one of the most important environmental constraints limiting plant growth, development and crop yield. Many drought-inducible genes have been identified by molecular and genomic analyses in Arabidopsis, rice and other crops. To better understand reaction mechanism of plant to drought tolerance, we mainly focused on introducing the research of transcription factors (TFs) in signal transduction...
In order to improve the detection rate of unknown virus, this paper presented a detection technology for unknown computer virus based on data farming, which synthetically considered the types of viruses, feature extraction methods for viruses of different types, data classification algorithms and other factors. Firstly, this technology extracted the behavior feature of the files to be executed, and...
Without changing the structure of two-stroke gasoline engine, some blended fuels of different ratios of ethanol and gasoline are used for experimental study of the engine. The effects of different ratios of mixed fuel on the characteristics of the engine, i.e. the output torque, power, fuel consumption rate of the engine, and its exhaust are tested. Experimental results and theoretical analysis prove...
As a basic and pillar industry, coal is our country's most important base energy sources, and taking an important part in the development of national economy. However, extensive growth mode of coal industry brings a series of problems, such as lower coal industry concentration ratio, lower scale structure efficiency, the problem of safety, lagging technology and irrational structure, which counteracts...
In order to make sure the seeding quality of air-suction seeding device, it is very important to control the vacuum degree of sowing drum. In this paper, the structure and principles of air-suction seeding device was introduced briefly and a fuzzy control system to control vacuum degree based on SPCE061A was presented. According to the features of SPCE061A and control demands of seeding device in...
Hot isostatic pressing (HIP) facilitates new designs and product shaping, for example by direct manufacture of composite products with differing materials in the various parts (compound). The specific material characteristics are thus created at the manufacturing stage (consolidation), and these in themselves often give good possibilities regarding shape, so-called NS (Net Shape)--or NNS (Near Net...
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