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一种用于食草动物粪便显微组织分析的临时装片新技术 被引量:22
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作者 曹伊凡 苏建平 《兽类学报》 CAS CSCD 北大核心 2006年第4期407-410,共4页
粪便显微组织分析法是研究食草动物食性的主要方法,其常规装片技术需要使用Hoyer’s装片介质对植物碎片进行封片,而Hoyer’s封片液的粘性易导致植物碎片在装片过程中发生卷曲和重叠,影响植物碎片的识别效果。本文提出的新装片技术采用... 粪便显微组织分析法是研究食草动物食性的主要方法,其常规装片技术需要使用Hoyer’s装片介质对植物碎片进行封片,而Hoyer’s封片液的粘性易导致植物碎片在装片过程中发生卷曲和重叠,影响植物碎片的识别效果。本文提出的新装片技术采用没有粘性的饱和NaCl溶液代替Hoyer’s装片介质,结合特定的定量取样方法和装片程序,可以有效地减少植物碎片的卷曲率和重叠率。对比试验显示,新装片技术可使植物碎片卷曲率从10.4%下降至3.8%,重叠率从25%下降至8.1%,说明新装片技术在减少植物碎片卷曲和重叠方面明显优于常规装片方法。 展开更多
关键词 食草动物食性 显微组织分析 植物碎 装片技术
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实验小技巧
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作者 魏社谋 《生物学教学》 北大核心 2005年第1期31-31,共1页
关键词 中学 生物教学 实验教学 种子 呼吸作用 二氧化碳 向水性实验 徒手切技术 制作技术
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Multichip on Aluminum Metal Plate Technology for High Power LED Packaging
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作者 Choong-mo NAM Mi-hee JI 《Journal of Measurement Science and Instrumentation》 CAS 2010年第3期297-299,共3页
Multichip on Ahnnintnn Metal Plate(MOAMP) technology with simple structure and low thermal resistance is developed for effective heat reratrval of Light Emitting Diode(LED) p-n junction and LED lighting module to ... Multichip on Ahnnintnn Metal Plate(MOAMP) technology with simple structure and low thermal resistance is developed for effective heat reratrval of Light Emitting Diode(LED) p-n junction and LED lighting module to have high reliability. The thermal resistance of LED modules was numerical and experimental. Thermal resistance from the jtnction to aluminten metal plate, considering input power of IFD module using MOAMP technology, is 3.02 K/W, 3.23 K/W for the measured and calculated, respectively. We expect that the reported MOAMP technology with low thermal resistance will be a promising solution for high power LED fighting modules. 展开更多
关键词 - thermal resistance Light Emitting Diode (IFO) aluminum metal plate IHOAMP
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An Automatic Dust Removal Device Based on SCM for Solar Panels
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作者 Weishuo Zheng 《International Journal of Technology Management》 2013年第7期106-108,共3页
This paper introduces a set of automatic dust removal device for street lamp solar panels. The device realizes the automatic dust removal for street lamp solar panels by three steps consisting of data acquisition, aut... This paper introduces a set of automatic dust removal device for street lamp solar panels. The device realizes the automatic dust removal for street lamp solar panels by three steps consisting of data acquisition, automatic control and mechanical dust removal. Our scheme is as follows, according to the comparison between the actual power generation and the relatively ideal condition of power generation of solar panels, we selectively conduct dust removal operation to panels. The paper demonstrates the feasibiliW of the technology based on the example of street lamp solar panels (40w). According to the calculation, the solar panels equipped with our device will greatly improve the power generation efficiency of solar panels, which means there will be 32 more degrees generated every year. Extension and application of the technique device will be beneficial for the improvement of solar panels power generation efficiency and the extension of the service life of the panels. 展开更多
关键词 solar panels SCM automatic dust removal energy saving environmental protection
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