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水下观察镜的研制与实用效果
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作者 刘建华 刘锦清 胡宗杰 《水产科学》 CAS 北大核心 1990年第1期20-22,共3页
水下观察镜是利用光线在水-空气两种不同介质中不同传播特点而研制成的一种光学器具。它可以协助从事水产养殖工作者清晰地看到鱼虾在水里的摄食和生态情况,为研究和管理水产养殖提供决策和取得第一手资料。一。
关键词 水下观察镜 水产养殖设备
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水下观察镜在湖北研制成功
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作者 兰泽桥 《水产科技情报》 1989年第5期147-147,共1页
网箱、拦网、围网养鱼是我国开发水域资源、改革水产养殖方式的重大突破,但如何及时发现网破鱼逃是一个亟待解决的难题。以往,渔民一般采用潜水手摸或将网、箔提出水面以检查是否损坏,这种检查方法劳动强度大,且影响网、箔的使用寿... 网箱、拦网、围网养鱼是我国开发水域资源、改革水产养殖方式的重大突破,但如何及时发现网破鱼逃是一个亟待解决的难题。以往,渔民一般采用潜水手摸或将网、箔提出水面以检查是否损坏,这种检查方法劳动强度大,且影响网、箔的使用寿命,甚至出现人为的网破鱼逃。 展开更多
关键词 水下观察镜 湖北省机械化养鱼开发公司 研制 产品特点
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LSY-250型水下观察镜
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作者 刘敏 《光学仪器》 1991年第3期38-41,共4页
本文拟就LSY-250型水下观察镜的光学原理,结构特点,工艺、材料选择及主要性能参数作一简单的介绍。
关键词 渔业 水下观察镜 机械化设备
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Use of albendazole sulfoxide, albendazole sulfone, and combined solutions as scolicidal agents on hydatid cysts (in vitro study) 被引量:19
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作者 Gokhan Adas Soykan Arikan +3 位作者 Ozgur Kemik Ali Oner Nilgun Sahip Oguzhan Karatepe 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第1期112-116,共5页
AIM: TO establish which scolicidal agents are superior and more suitable for regular use. METHODS: Echinococcus granu/osus protoscoleces were obtained from 25 patients with liver hydatid cysts. Various concentration... AIM: TO establish which scolicidal agents are superior and more suitable for regular use. METHODS: Echinococcus granu/osus protoscoleces were obtained from 25 patients with liver hydatid cysts. Various concentrations of albendazole sulfone, albendazole sulfoxide, and albendazole sulfone and albendazole sulfoxide mixed together in concentrations of 50 μg/mL, and H202 in a concentration of 4%, NaCI 20%, and 1.5% cetrimide-0.15% chlorhexidine (10% Savlon-Turkey) were used to determine the scolicidal effects. Albendazole (ABZ) derivatives and other scolicidal agents were applied to a minimum of 100 scoleces for 5 and 10 min. The degree of viability was calculated according to the number of living scolices per field from a total of 100 scolices observed under the microscope. RESULTS: After 5 min, ABZ sulfone was 97.3% effective, ABZ sulfoxide was 98.4% effective, and the combined solution was 98.6% effective. When sulfone, sulfoxide and the combined solutions were compared, the combined solution seemed more effective than sulfone. However, there was no difference when the combined solution was compared with sulfoxide. After 10 min, hypertonic salt water, sulfone, sulfoxide, and the combined solution compared to other solutions looked more effective and this was statistically significant on an advanced level. When sulfone, sulfoxide, and the combined solutions were compared with each other, the combined solution appeared more effective than sulfone. When the combined solution was compared with sulfoxide, there was no difference. CONCLUSION: Despite being active, ABZ metabolites did not provide a marked advantage over 20% hypertonic saline. According to these results, we think creating a newly improved and more active preparation is necessary for hydatid cyst treatment. 展开更多
关键词 Hydatid disease AIbendazole In vitrostudy Combined solution Scolicidal agents
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