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Roots of five species of Calanthe and two species of Phaius from north, midland and south of Taiwan were collected for the isolation of orchid mycorrhizal fungi. Total for 104 isolates of fungi were isolated. They are identified respectively by the traditional method or DNA sequence. Results showed thatTrichoderma and Mucor were most often isolated fungi. The DNA sequence results showed that only Xylaris was most common fungus.
由台湾北、中、南四处地方采集五种原生根节兰及二种原生鹤顶兰,进行此等原生兰花根部菌类分离,共分离出104株代码真菌菌种,分别再以菌落、菌丝和孢子等传统形态特徵鉴定菌种,结果发现以木霉菌及毛霉菌属内之菌株占优势,而利用核酸序列比对之鉴定结果则以炭角菌属内之菌株占多数。
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The cinnamaldehyde as a main component in the essential oil was determined. The effects of type of solvent, temperature, extraction time and ratio of solid to solvent were examined and optimized.
考察了NPSMAE提取溶剂的种类、提取温度、提取时间及固液比等对测定的影响,同时将NPSMAE与超声波辅助提取及水蒸气蒸馏等方法进行了比较。
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In this paper, we propose the investigation of the void in dual damascene process and the hole and trench with large aspect ratios between width and height.
本论文主要针对双层镶嵌制程所造成的孔隙及具有高深宽比的极窄和极深的通孔和沟槽所造成的影响加以探讨及研究。
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MTT assay was used to assess the effects of deguelin on cell proliferation. FCM and RTPCR were used to analyze the changes of nup98 mRNA and protein in K562 cells after treating with deguelin.
用MTT比色法检测细胞增殖活性;流式细胞术及RTPCR法分析鱼藤素作用K562细胞后nup98蛋白及mRNA含量的变化。
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Then, a series of successful numerical simulations on the finite length inclined positively buoyant jets in uniform cross flows environment are developed. Based on the results from numerical simulations, some qualitative pictures of the complex three -dimensional mean flows are given. In terms of these pictures, the flowing behavior of the buoyant jets and the mechanism of end-vortexes generation are made a study. The change rules of end-vortexes and temperature and dilution on trajectory of jets, horse-hoof shape of buoyant jets on horizontal, the phenomenon of the jets touch wall, and the effects of diffuser length^ densimetric Foroude number % velocity ratio on buoyant jets are also given.
之后对均匀横流环境中的有限长线源型倾斜浮力射流进行了大量的数值计算,根据数值模拟的结果,绘出了一些复杂的三维图,据此探讨了其流动特性及端涡的产生机理,成功模拟了端涡现象及其发展过程,对轨迹线上沿程温度及稀释度的变化规律,倾斜浮力射流的马蹄形结构,浮力射流的贴壁现象,扩散器长度、喷口弗汝德数、流速比等对浮力射流的影响等问题均给出了有价值的结论。
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Use instead and fasten and dig the bit to remove the hole and bottom eluvial soil after 5m (if the rock meeting high hardness while the base rock creeps into, can is it inlay rock bit get into to designing requirement hole dark by fastenning and digging and fighting the clear hole and then to use instead), in order to improve the strength of bearing the weight of of one , put the reinforcing bar cage finally , build the concrete.
本工艺基本上适应于各种土层,如软弱土层、松散杂填土、粉土、砂土、粒径不大(10cm以下)的碎石土和圆砾及其它塑性不大、粘粒较少的粘土,尤其适用于软塑、流塑、孔隙比大、高压缩性、抗剪强度小等特性的淤泥质土及因地下水丰富造成泥浆护壁困难的土层。
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In this paper, the electroplating of bright Zn-Ni alloy process was studied, the effect of (1-hydroxy ethylidene diphosphonate acid coordinating agent, chloride content, [Zn2+]/[Ni2+] mole ratio, cathode current density, temperature, a class of aldehyde compound (abbreviated as ZNP additive agent) and supplementary coordinating agent on Ni content, and brightness of plating layer was discussed, the physical phase of alloy plating layer and stability of plating solution were determined.
研究了用有机多膦酸盐作络合剂,ZNP作添加剂电镀光亮锌镍合金,探讨了络合剂、氯化物含量、[Zn2+]/[Ni2+]比、阳极电流密度、温度、辅助络合剂对合金中镍含量的影响,测定了合金镀层中物相组成及镀液稳定性,通过筛选得出最佳最镀光亮锌镍合金的镀液组成及工艺条件,并讨论了锌镍合金的异常共沉积机理。
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The analysis on unilateral, bilateral and lateral-torsional coupled seismic response of base-isolated structures with lead rubber bearings is carried out. The maximal displacement of the bearings is studied. The influence on lateral-torsional coupled seismic response of base-isolated structures due to the excentricity and uncoupled period ratio of the superstructure, and the excentricity of the isolation system is investigated.
对铅芯叠层橡胶支座基础隔震结构进行了单向及双向地震反应对比分析,并研究了支座最大位移的确定;对结构进行了平—扭耦联地震反应分析,研究上部结构的偏心距及非耦联周期比、隔震层偏心距等因素对结构的平—扭耦联地震反应的影响,并对结构平—扭耦联地震反应的控制进行了探讨。
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The earliest and reliable Castanopsis fossil records date back at least to Eocene, and subfamily Castaneoideae fossil records found from Paleocene, it is indicated that appearance of Castanopsis is not later than Paleocene . All fossil records of Fagaceae and Castanopsis report from the Northern Hemisphere and their main distribution regions are in the Northern Hemisphere . It can be concluded that the Northern Hemisphere is the center of origin of Fagaceae and Castanopsis . However, owing to the discrepancy between fossil data and results of modern botany research as well as scarcity of fossil data from key area, precise center of origin of Castanopsis cannot be inferred.
栲属在地质历史上有着比现在广泛的分布,最早、最可靠的栲属化石记录发现于始新世地层,栗亚科化石在古新世就有发现,化石记录表明栲属起源的时间不晚于古新世,所有的壳斗科及栲属的化石都发现于北半球,现代分布也主要在北半球,壳斗科及栲属起源于北半球可以确认,由于化石证据与现代植物学的研究结果有较大差异以及关键地区化石证据的不足,具体的起源地尚不能肯定。
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The results showed that rice straw growth and fascicular alteration interacted when water was deficient. It not only affected the transportation of nutritious substance from rhizine and leaf to kernel, but also led to the decrease of agronomic characters and yield. 4 ecotypes of rice vascular bund...
结果表明:水分不足对稻秆及秆中维管束的影响是相互的:稻秆的发育情况影响了维管束变化,同时维管束的变化影响了稻秆的发育,最终影响营养物质从根部、叶部向籽粒运输,从而使结粒数、稔实率、千粒重、产量下降。4种生态型水稻维管束系统与一次及高次枝梗数目、结粒数、千粒重等有类似的相关性,而且水分不足时反应出相同的结果,说明土壤水分对维管束系统的分化有很大的影响,水分不足将使维管束面积变小,维管束比增大,从而使产量变小。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。