The present invention relates to a shape memory fiber and its preparation method, the shape memory fibers are made from a shape memory polyurethane, said polyurethane formed by the reversible phase component (A) to form a fixed phase component (B) prepared by . The shape memory fiber preparation met.....
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一种检测调校光电控制器的可变照明装置包括：在箱体光室中一端的光度可调的白炽灯泡。在光室中靠近灯泡的、使灯泡发出的光多次反射的光障。在光室中另一端的让该多次反射后的光线射出光学室的透明窗口。在光室中窗口附近的具有窗口相同光度的测光表。在光室外的围绕该窗口的遮光圈。与测光表连接的在箱体电器室中可由外部读数的显示器。在电器室中向灯泡供电的电池组。在电器室中可由外部调节的控制该电池组供电电流大小的变流器。在电器室中的可由外部调节测光表的调节器。本实用新型装置结构简单，造价低廉，体积小巧，可用于不同尺寸的光电控制器感光窗，使得街灯用的光电控制器在任何强度的环境光下都能检测调校。
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The invention relates to the technical field of the wireless mesh networks and discloses a switching method for the wireless mesh network. The method comprises the following steps: (A) adopting a minimum dominating set algorithm to select an agent router in a plurality of mesh network routers and up.....
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The invention provides a voltage regulation circuit of illuminating lights, which is suitable for an illumination system which is serially composed of a main power source and an illumination load. The single-phase illumination system comprises the main power source which outputs sine alternating cur.....
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本发明涉及排汗面料，包括至少两层：一个吸水层和一个排水层，在横截面模拟仿生树型结构，在内层模拟树型结构的主干形成一个吸水层，在外层模拟树型结构的分支形成一个排水层，两层面料通过集圈线圈连接；所述面料正面的线圈比在面料反面的线圈数量多，所述面料正面的线圈比在面料反面的线圈尺寸小，增加了织物外表面的面积，并且可以提高毛细管力；所述面料横截面的结构为模拟仿生树形结构，这种分支结构可以减小水分传输的阻力。
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