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    Twelve new aroyl thioureas have been synthesized by the reaction of 2-amino-5-mercapto-1,3,4-thiodiazole with aroyl isothiocyanates, their structures were characterized by IR, 1H NMR and elemental analysis. The preliminary biological activity tests showed that some target compounds have a good activity as plant growth regulator, and 2c, 2d, 2h have more excellent auxin activity.
    通过2-氨基-5-巯基-1,3,4-噻二唑与芳酰基异硫氰酸酯反应,合成了12种新的芳酰基硫脲,其结构用红外光谱、核磁共振氢谱和元素分析进行了表征,初步的生物活性测定试验表明:部分目标化合物具有良好的植物生长调节活性,其中2c、2d和2h的生长素活性更优.
    2,4-Dichlorophenoxyacetic is a kind of traditional plant growth regulator. In order to develop new kinds of plant growth regulator,we designed and synthesized 4 kinds of target compounds,N-[2-(2,4-dichlorophenoxy)acetamido](thio)urea derivatives(1~4),through esterification of 2,4-dichlorophenoxyacetic,p-phenylhydrazine acylation and nucleophilic addition of phenyl isothiocyanate.
    以2,4-二氯苯氧乙酸为原料,经酯化、对苯肼酰基化、对异(硫)氰酸苯酯进行亲核加成等反应,合成了4种目标化合物——2,4-二氯苯氧乙酰氨基(硫)脲类衍生物(1~4)。
    The target compounds were characterized by 1H NMR.
    通过1H NMR表征确定了目标化合物的结构。
    The average cocoons produced by one female was 30 and the maximum was 89 at 19-25℃. The average life span of female was 6 days and 13 days at most. It had stronger ability to propagate and control target pest.
    管侧沟茧蜂羽化后当天就能交配寄生,雌成蜂6日龄前的寄生数量占90%,在19~25℃单雌平均产茧30个,单雌最多产茧89个,雌蜂平均寿命,最长13 d,该蜂具有很强的生殖能力和控制目标害虫的能力。
    Studies on Target Genes Transferred by Rice Floral Organ-Mediated Method
    水稻花器介导法转目标基因的研究
    Simultaneous Determination of Four-Components in Mixed Herbicides by Modified Target Factor Analysis-UV Spectrophotometry
    UV-改进目标因子分析法对混用除草剂4组分的同时测定
    The structures of synthetic compounds and target compounds have been elucidated with infrared spectrum and mass spectra.
    采用红外光谱和质谱对合成的八种化合物进行了结构表征,证明所得化合物与目标化合物的结构一致。
    Intermediate I was reduced at -78℃ by DIBAL-H to obtain benzo[d][l,2,3]thiadiazole-7-carbaldehyde, and benzo[d][l,2,3]thiadiazole-7-carbaldehyde treated via Wittig-Horner reaction to (E)-3-(benzo[d][l,2,3]thiadiazol-7-yl)acrylic acid esters as target compounds.
    中间体Ⅰ在低温-78℃下经二异丁基氢化铝(DIBAL-H)还原制备了苯并[1,2,3]噻二唑-7-甲醛,随后苯并[1,2,3]噻二唑-7-甲醛经Witting-Homer反应制备了目标产物(E)-苯并[1,2,3]噻二唑-7-丙烯酸酯。
    With the protocol above, the concentration of target protein purified was 4.134μg/mL, whosegrowth inhibitory percentage against H. armigera larvae was 97.9%.
    通过该纯化技术路线所获得的目标蛋白浓度为4.134μg/mL,表现出对棉铃虫初孵幼虫97.9%的生长抑制率。
    With SDS-PAGE, only a 220kD band was presented for each of these two target proteins.
    该目标蛋白SDS-PAGE表明,2个目标蛋白都只出现一条分子量约为220kD的带。
    4. The target protein was fluctuated on the wavelength between 250-290nm, which meant the complexity of this protein.
    4.目标蛋白的紫外吸收光谱在250~290nm下有吸收值。 蛋白染色试验结果表明,目标蛋白不是脂蛋白,也不是糖蛋白。
    Target compounds (Ⅰ、Ⅱ、Ⅲ) are synthesized by nucleophilic addition of amino heterocycle with acyl isothiocyanates in anhydrous and aprotonic solvent.
    利用酰基异硫氰酸酯与氨基杂环在无水非质子溶剂中发生亲核加成反应,合成三个系列的目标化合物(Ⅰ、Ⅱ、Ⅲ)。
    The results of biological activity tests showed that three target compounds increased the growth rate of the rice root by 19%,14% and 15% than the phenyldimethylsilylmethyl 1-naphthylacetate at concentration of 25 mg/L,respectively.
    生物活性试验表明 ,药液质量浓度为 2 5mg/L时 ,三种目标化合物对水稻根生长比对照化合物 ( 1-茶乙酸苯基二甲硅基甲酯 ,Ⅷ )分别提高 19%、14%和 15%。
    The droplet distributions on different parts of target trees, downwind non target trees and ground were analyzed by comparing various sets of parameters of centrifugal an axial mistblowers.
    通过离心式弥雾机和轴流式弥雾机在不同工作参数下的试验对比 ,分析了它们在目标树、下风非目标树和弥雾机经过的地面上雾滴的沉积和雾滴在目标树不同部位的分布状况。
    The validity of target genes transferred by rice floral organ-mediated method were verified by PCR analysis, evaluation of resistance to sheath blight and blast, screening by hygromycin B and examination of GUS activity in transgenic rice.
    经潮霉素 (hygromycin)筛选、PCR分析、抗稻纹枯病和稻瘟病鉴定、GUS活性检测转基因水稻后代 ,验证了水稻花器介导法转目标基因的有效性。
    Finally,oxidation of Ⅱ on nitrogen atom with H_2O_2 at 75 ℃ gave the target product N-(6-chloro-1-oxy3-pyridinemethyl)phthalimide in 98% yield,melting point 138.2~139.4 ℃.
    最后以双氧水为氧化剂,在75℃条件下,N原子氧化,合成了目标产物N-(6-氯-1-氧-3-吡啶甲基)邻苯二甲酰亚胺,熔点138.2~139.4℃,收率92%。
    Structures of the intermediates and target product were characterized by FTIR,~1HNMR and GC-MS.
    利用红外光谱(FTIR)、核磁共振氢谱(1HNMR)、气-质联用仪(GC-MS)解析并确定了中间产物及目标化合物的结构。
    Preliminary biological activity test results show that the target compounds 2c,2d and 2h have a relatively good activicy of auxin,and the promoting rates of them are 30.1%,32.5% and 29.9%,respectively.
    初步的生物活性测定试验表明,目标化合物具有良好的生长素活性,其中化合物2c、2d和2h的促进率分别为30.1%、32.5%和29.9%。
    The results showed that the pattern of "65 % target trees+ 25 % non-host trees+ 10 % bait trees" was the best and the threshold value was 0.948,which can resist A. glabripennis disaster and assure optimized integrated benefit.
    研究结果表明:“65%目标树种+25%非寄主树种+10%诱饵树”模式的综合效益最佳,评价决策值为0.948,既达到了抗御光肩星天牛灾害的目的,又保证了综合效益的最大化;
    While the integrated benefit of the pure target trees was the lowest and its threshold value was only 0.369 2.
    而目标树种纯林模式的综合效益最低,评价决策值仅为0.369 2.
 

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