三倍性
- 与 三倍性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The extracting coenzyme Q_(10) from Blakeslea trispora using saponific ation was also studied by orthogonal test. And the optimum extracting conditions were obtained as follows: Wet culture was distilled at 70℃for 60min, added caustic potash up to 1.9 times of dry culture, pyrogallol up to 1/2 dry culture, and the concentration of alkali-methanol was 10%.The average recovery of CoQ_(10) was 81.5%.
采用正交实验,对醇碱皂化法提取三孢布拉氏霉菌体中辅酶Q_(10)的各工艺条件进行了研究,确定最佳的工艺条件为: KOH加量为干菌体质量的1.9倍,醇碱浓度为10%,焦性没食子酸添加量为干菌体质量的1/2,在70℃下皂化60min,其平均提取收率达81.5%。
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By taking one-year-old micropropagated K2, K3 and ordinary duplation black locust as study objects, the difference in drought resistance abilities among three clones were evaluated under stimulant natural drought and gradual drought of soil.
本实验设置了模拟自然干旱和土壤逐渐干旱两种处理,以普通二倍体刺槐为对照,研究了三个品种的一年生组培苗间与抗旱性相关的生理生化指标的差异。
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And 17. 6% respectively when increasing furnace arch height 10 times original height and adopting furnace arch stmcture of inequilateral depth and double fumace arch structure.
研究表明,当折焰角高度增加为原高度的10倍、采用左右不等深度折焰角和双折焰角三种结构时,炉膛出口残余旋转明显减小,末级再热器入口截面最大速度不均匀性系数M〓可分别减小30.7%、19.3%和17.6%。
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The present invention adopts polyvinyl perchloride and organosilicon modified acrylic resin as main filming material and adds cyanuramide phosphate and expanding graphite into common polytriammonium phasphate as fireproof assistant to constitute foaming material. The present invention has greatly raised foaming rate and the foamed layer has thickness of 30-50 times the original coating thickness and fireproof limit up to 90 min.
本发明采用高氯化聚乙烯和自行合成的有机硅改性丙烯酸酯树脂为主要成膜物质,并在通常所用的聚磷酸铵类防火助剂的基础上,加入三聚氰胺磷酸盐和可发性膨胀石墨作为发泡材料组成,大大提高了涂层的发泡率,发泡层厚度可达原涂层厚的30~50倍,耐火极限可达90min(涂层厚度2mm)。
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The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.
围绕上述思路开展了如下工作:1合成了三种可进行光二聚反应的光敏小分子单体,LPUV 辐照制作了光控取向膜;用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应,发现小分子的光反应程度可达到50%以上,至少比光敏高分子高出5倍;薄膜的偏振红外光谱证实,经过LPUV 辐照后薄膜出现了明显的各向异性;将小分子光控取向膜制成液晶器件,在偏光显微镜下观察看到均匀一致的液晶取向;并且热稳定性达到100℃左右,接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜;采用接触角的方法监测自组装反应的动力学过程;紫外-可见光谱证实了自组装单层膜在石英基板表面形成;自组装单层膜经LPUV 辐照后能诱导液晶均匀取向,而且热稳定性可达130℃,热稳定性进一步提高。3合成了含有光敏双键的双季铵盐,在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜,紫外-可见光谱证实这是一个逐层均匀的沉积;在LPUV 照射下,自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应,形成取向膜,用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平;实验证明用自组装多层膜制成的液晶器件亮暗态均匀,静态对比度约为100,达到实用化器件的水平。
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From its branchs, we obtained 8 compounds belonging to triterpene, norsesquiterpene, phenolic compound, lignan and long chain fatty acid. A lignan and a long chain fatty acid are new compounds.
从其枝条中分离鉴定了8个化合物,包括三萜、降倍半萜衍生物、酚性化合物、木脂素和脂肪酸等,其中有两个新化合物,即一个木脂素和一个长链脂肪酸。
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People have paid attention to the pollution of soil and water quality caused by using organic arsenic chemistry reagent to prevent and cure apple-tree canker in our apple area, so it has an important purpose to seek a harm-free way for sustaining development of apple. The tests studied the effect of prevention and cure on apple-tree canker with EM mud, EM liquid, 40%'Fumeishen powder' and contrast. The results showed that the EM mud was superior to the EM liquid, 40% 'Fumeishen powder' and contrast. The prevention and cure effects of EM in 2006 and 2007 were 92.7% and 93.5%, while the recurrence rates of canker scars 1.8% and 2.8% respectively. And the healing effect of scar is 50.4%. So, it was considered as a new way to prevent and cure apple-tree canker with EM mud.
中国各苹果主产区果农长期使用有机砷等化学制剂防治腐烂病,对土壤、水质等环境造成的污染已引起人们的关注,寻求无公害的方法防治腐烂病,对苹果业可持续发展具有重要意义;本试验设EM活性菌泥涂抹、EM活性菌液涂抹、40%福美砷可湿性粉剂50倍液刮涂和对照(只刮除腐烂病疤,不涂药)4个处理,三次重复,进行了苹果树腐烂病的防治研究;结果表明,EM活性菌泥在防治效果、病疤复发率和促进病疤愈合效果方面均优于其它处理,其当年和第二年4月的防治效果分别为92.7%、93.5%,病疤复发率分别为1.8%、2.8%,促进病疤愈合效果也最好(50.4%);因此,作者提出,将EM活性菌融入粘泥载体中制成菌泥,涂抹在腐烂病疤上,以菌治菌,是防治苹果树腐烂病的新途径。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。