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In the process of vector polygon features update, one geographic entity in multi-scale maps are always expressed diversely, because the details and the key of the expression are different. That makes multi-scale polygon features update difficult. Some experiments are performed to establish the river polygon features' relationships of multi-scale maps. The experiments not only have high efficiency,...
Okadaic acid (OA), a key diarrheic shellfish poisoning (DSP) toxin will possibly arouses DSP symptoms by consuming the contaminated shellfish. The DSP toxins are stable at high temperatures, and long-term DSP toxicity is carcinogenic. Therefore a fast and reliable analytical method for the detection of OA and analogues in shellfish is worth developing. In this paper, a direct competitive ELISA (dcELISA)...
In this paper, the existing products' status about mechanical life-saving parachute device or unlock device is analiszed, and the key problems in specific design of multistate program control parachute is shown and illustrated. The prototype is development, which is formed mainly by PC104 as control core, 3-dimensional electrom compass as sensors and ball lock mechanism as release machine. Princinple...
Experts use natural language in the unstructured decision-making problems, when they are establishing weights by pairwise comparison. In this paper, attribute hierarchical model (AHM) is utilized to establish weights. And grey fuzzy number is introduced, which can fully express experts?? will and make experts?? scoring more scientific. Then a new grey fuzzy unstructured decision-making model is proposed...
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