Search Results - He, Yong

In this article, we mainly study the qualitative properties of solutions for dual fractional-order parabolic equations with nonlocal Monge-Ampère operators in different domains ∂tβμ(y,t)−Dατμ(y,t)=f(μ(y,t)).{\partial }_{t}^{\beta }\mu \left(y,t)-{D}_{\alpha }^{\tau }\mu \left(y,t)=f\left(\mu \left(y...

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Soil secondary salinisation is a problem resulting in a decreased productivity of protected vegetable production in China. In protected greenhouses, salts accumulated in soil are mainly as Ca²⁺ and NO₃^-, which are different from th...

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On the basis of analysis of usual evaluation method of agricultural mechanization and development of agricultural mechanization in Zhejiang province, evaluation index system is set up. Then, both standard value and jurisdiction of every index are determined, calculation formula of every index and co...

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The trend-state mathematical model has the merits of both simplicity of application and high forecasting precision. It can solve the forecast question of data sequences with trend and heavy random fluctuation. This paper forecasted and analyzed the yield of grain in Zhejiang province by this model....

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The typical grain drying patterns in Zhejiang province was investigated and tested. A method to evaluate the technological and economic adaptability of grain drying pattern was established. It was applied to analyze three typical grain dryers in Zhejiang province. The results can be used to instruct...

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Based on value analysis of technology for raising rice seedlings in plant in Zhejiang Province, value and function were analyzed with the principle of value engineering. Then, under the prerequisite of both ensuring essential function and seedlings quality, improvement measure of equipment for raisi...

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This paper introduced a microcomputer controlled system for measuring the soot emission of tractors. The system was composed of a detector, soot meter, test equipment and a computer. The test equipment was controlled by single-chip microcomputer, which had a key-display interface, printer port and a...

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The agricultural machinery multimedia decision support system, which is based on management information systems and information technology, is aimed to transmit, storage, organize and analyze agriculture machinery information. With the help of multimedia technology, the system analysis, forecast and...

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The main point of intelligent fault diagnosis theory is fault mode distinguish principle based on data processing methods. Data processing methods mainly include wavelet analysis, main component analysis and rough theory. Fault diagnosis theory mainly includes expert system fault diagnosis, fussy fa...

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Aiming at imbalance and regionalization in development of agricultural mechanization, assessment indexes and models were put forward. Accordingly, geographical information system (GIS, Map-Info) with powerful function of both mapping visualization and spatial analysis was combined with assessment mo...

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On the basis of investigating comprehensively the present situation of grain postproduction system in South China. Appraisal criteria for comparison analysis and comprehensively evaluating grain postproduction system have been set up. A new multi-hierarchical and multi-objective comprehensive evalua...

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Automated agricultural vehicles can help alleviate labor intensity concerns, reduce the cost of inputs, and improve the profitability. Significant progress has been made in automatic guidance for agricultural vehicles during the last two decades. More recently, research and development are focused o...

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To avoid hitting the edge of paddy field or moving obstacle in the paddy field when global position system signal was weak or was influenced by the strong wind, we proposed a laser sensor- based collision avoidance system. This collision avoidance system was based on Otsu method to find out the opti...

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cDNA of S1 gene of isolate J of avian nephropathogenic infectious bronchitis virus (IBV) isolated from Zhejiang province was amplified by reverse transcription-polymerase chain reaction with special primers and cloned into plasmid pBluescript SK. The recombinants were identified by digestion of rest...

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Variance process is the key of precision farming. The first step of variance process is sampling and the next is analysis of the data acquired. To analyze data on-line, the spatial analysis model based on Palm-sized PC was developed. This model constitutes part of a farm field information collection...

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At present, view-based 3D model classification is a research hotspot. However, current methods produce many redundant views, and all views are treated equally, ignoring their differences and importance. To solve the above problems, we propose a multi-view fusion 3D model classification method. This...

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Virtual Instrumentation (VI) is becoming a popular tool in measurement, test and automation as a result of rapid development of computer technology. In this paper, a engine test experimental system comprised of computer, DAQ Card PCI-6024E board, and other components, is presented. The signal output...

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According to peculiarity of farmland information acquisition, a new measurement system using wireless communication technology, the so-called GSM technology, was advanced. The system is comprised of a GPS receiver, a moisture sensor, a soil moisture quick-location testing device, two GSM wireless co...

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In this paper, the concept of precision farming and its relevant techniques are introduced, which include the global positioning system (GPS), geographic information system (GIS), decision support system (DDS), yielding mapping (YM), variable rate technology (VRT). Some suggestions to promote the st...

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A minimal cost fault diagnosis mathematics model based on a fuzzy weighted bipartite graph for the single-input fault diagnose problem was put forward, and two effective algorithms for it was given. Using these two algorithms, decision scheme to optimal fault diagnosis sequence problem was got.