Intelligent Tester for Geotextiles Products-Determination of Water Flow Capacity in their Plane

IntroductionThe manufacture of geotextile and the relevant product(s) thereof, a penetrating polymer material used in rock soiland geotechnical engineering, synthesizes technicalachievements in such industrial departments as textile,chemical industry, plastics, papermaking and the like. Sincethe characteristic of geotextile and the related product ( s)thereof is closelyrelated to kind of raw material, manufacturetechnique, product standard and the like, and th…     

新型土工布渗透率测控系统

渗透率是土工布的重要性能指标，该系统利用89C51单片机构成了土工布水平渗透率的自动测控系统，它不仅具有自动加压及梯度控制功能，还能与上位机通讯，实现测试数据的报表打印，曲线绘制。     

紫云英花药植株诱导初报

豆科植物花药离体培养,国内外虽有一些研究,但成功的较少。至于紫云英(Astragalus Sinicusl)花药培养,目前还未见成功的报道。我所1979年开始对紫云英花药培养进行初步研究,当年获得了愈伤组织和花药植株(图1)。