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synthetic experiments
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  模拟合成实验
     A series of synthetic experiments of gold bearing pyrite have been carried out in order to investigate the mechanism of the formation of rich gold ores.
     为阐明热液富金矿石形成的机理,进行了含金黄铁矿的模拟合成实验
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  “synthetic experiments”译为未确定词的双语例句
     How to arrange the synthetic experiments on the design or study of computer control systems?
     如何安排综合性的设计型或研究型的实验?
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     In the research, the synthetic experiments on Complex Membrane Aerated Bioreactor (CMABR) were done, which including the using fillers, the technological conditions, the reaction kinetics and the membrane fouling of the domestic sewerage treatment.
     本研究对复合式膜曝气生物反应器(CMABR)处理生活污水的工艺条件、使用填料、反应器动力学及膜污染进行了系统实验。
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     Based on the results of the synthetic experiments of 4A zeolite the economic valid pretreating technology of the white clay, synthetic process of 4A zeolite, and some relavant technic parameters have been discussed.
     最后根据合成实验结果对经济有效的原料预处理方案与 4 A沸石合成工艺流程及相关技术参数进行了探讨
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     How to Change the Ordinary Synthetic Experiments into Explorating Experiments
     普通的合成实验变成探索性的实验研究
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     Secondly, we have selected the characteristic surfactant PM which is suitable tocontrol TATB crystal growing through emulsive synthetic experiments with SiBen-80,QP and PM emulsifier;
     其次,我们通过司本-80,OP和PM乳化剂的乳化合成实验筛选出了适宜于限制TATB晶体生长的特性表面活性剂PM;
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  相似匹配句对
     experiments.
     作者建议用实验验证该假定。
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     Experiments
     试验证明,效果显著。
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     Study on Microscale Organic Synthetic Experiments
     微量有机制备实验探索
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     The synthetic experiments were performed in terms of uniform design.
     根据均匀设计来安排试验。
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     Synthetic of SAP
     高吸水树脂SAP的合成
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  synthetic experiments
The least-squares Geiger, master event relocation, and double difference methods have been considered in a series of synthetic experiments which investigate their ability to resolve AE hypocentral locations.
      
Synthetic Experiments Dealing with Anisotropic Model Building
      
Derived mixing properties of Fe- and Mg-bearing plagioclase are in harmony with estimated results from synthetic experiments in the systems CaAl2Si2O8-CaFeSi3O8 and CaAl2Si2O8-CaMgSi3O8.
      
Based on recent results of analytic- and model-synthetic experiments, essential traits of humification (such as polymerization, condensation, and nucleophilic addition) are reviewed.
      
From the results of these synthetic experiments, self and non-self immunology can be completely exposed as non-scientific theories like teleological adult-fairy tales, akin to the Darwinist theory of evolution.
      
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Ohle and his coworkers suggested that a 3, 6-anhydrohexoside can be formed from 2, 3-anhydrohexoside in alkaline media if the 2,3-anhydro ring is disposed in Haworth's perspective formula such that it is in the opposite side to the C_5-CH_2OH side chain. It is obvious that the transformation involves an intramolecular S_N2 mechanism, but experimental evidence is quite limited. We have succeeded in providing further unequivocal details in this transformation with synthetic experiments. The key intermediate...

Ohle and his coworkers suggested that a 3, 6-anhydrohexoside can be formed from 2, 3-anhydrohexoside in alkaline media if the 2,3-anhydro ring is disposed in Haworth's perspective formula such that it is in the opposite side to the C_5-CH_2OH side chain. It is obvious that the transformation involves an intramolecular S_N2 mechanism, but experimental evidence is quite limited. We have succeeded in providing further unequivocal details in this transformation with synthetic experiments. The key intermediate is methyl 2, 3-anhydro-4-O-methyl-α-D-glucopyranoside (ⅩⅨ), the C_4-hydroxyl group being protected as stable methyl ether group in order to avoid any complication on treatment with alkaline reagent. (ⅩⅨ) is synthesized from methyl di-O-toluene-p-sulphonyl-α-D-glucopyranoside (ⅩⅢ) by a series of four consecutive reactions as follows: (ⅩⅢ) is tritylated in pyridine with triphenylmethyl chloride to give the known, syrupy methyl 2, 3-di-O-toluene-p-sulphonyl-6-O-trityl-α-D-glucopyranoside (ⅩⅣ), which is methylated thrice with methyl iodide and silver oxide and the crystalline methyl 2,3-di-O-toluenep-sulphonyl-4-O-methyI-6-O-trityl-α-D-glucopytanoside (ⅩⅤ; m.p. 153—154°; [α]_D+66.9°, acetone) is obtained in 86% yield; (ⅩⅤ) is then detritylated according to Bredereck with acetyl bromide in acetic anhydride to give the corresponding acetate (ⅩⅥ) which is syrupy and is treated in chloroform at 0° with sodium methoxide; the reaction products consist of two crystalline substances, one being the water-soluble methyl 2,3-anhydro-4-O-methyl-a-D-allopyranoside (ⅩⅨ; m.p. 111—112°; [a]_D +193.5°, water) and the other methyl 2,3-di-O-toluene-p-sulphonyl-4-O-metbyl-α-D-glucopyranoside (ⅩⅦ; m.p. 159—160°; [α]_D+53.6°, acetone), both of which have been exhaustively methylated to give the known, crystalline methyl 2,3-anhydro-4,6-di-O-methyl-α-D-allopyranoside(ⅩⅪ) and methyl 2,3-di-O-toluene-p-sulphonyl-4,6-di-O-methyl-α-D-glucopyranoside(ⅩⅧ), and the structures of (ⅩⅨ) and (ⅩⅦ) are thus established. Methyl 2,3-anhydro-4-O-methyl-α-D-allopyranoside (ⅩⅨ) is then heated in N sodium hydroxide until the optical rotation reaches a constant value, followed by isolation to give a 54% yield of crystalline methyl 3,6-anhydro-4-O-methyl-α-D-glucopyranoside (ⅩⅩ). Since all necessary intermediates have been obtained crystalline, the transformation can be considered as experimentally established. Incidentally, the present work also confirms the structure of(ⅩⅩ) which has been previously prepared by partial methylation of methyl 3,6-anhydro-α-D-glucopyranoside by Haworth, Owen and Smith.

应用四步合成反应证实,在Haworth的吡喃糖甙透视结构中与C_6-侧链处于反位的2,3-内醚环可以在碱性试剂作用下转化为相应的3,6-内醚糖甙,为Ohle所提出的推论提供确切的实验证据。四步反应包括由2,3-二-O-对甲苯磺酰基-D-葡萄糖一α-甲基呲喃甙(ⅩⅢ),经三苯甲基化,得糖浆状的2,3-二-O-对甲苯磺酰基-6-O-三苯甲基-D-葡萄糖-α-甲基吡喃甙(ⅪⅤ)。然后应用Purdie-Irvine的方法进行甲基化,得结晶的2,3- 二-O-对甲苯磺酰基-4-O-甲基-6-O-三苯甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅤ);在乙酸酐中以乙酰溴置换ⅩⅤ的三苯甲基,生成糖浆状的2,3-二-O-对甲苯磺酰基-4-O-甲基-6-O-乙酰基-D-葡萄糖-α-甲基吡喃甙(ⅩⅥ)。再直接在氯仿中在0°用甲醇钠处理,得到两种结晶产物;其一为水溶性的2,3-内醚-4-甲基-D-阿罗糖-α-甲基吡喃甙(ⅪⅩ),另一为溶于有机溶剂中的2,3-二-O-对甲苯磺酰基-4-O-甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅦ)。两者的结构均经彻底甲基化为已知的结晶的2,3-内醚-4,6-二-O-甲基-D-阿罗糖-α-甲基吡喃甙(ⅩⅪ)和2,...

应用四步合成反应证实,在Haworth的吡喃糖甙透视结构中与C_6-侧链处于反位的2,3-内醚环可以在碱性试剂作用下转化为相应的3,6-内醚糖甙,为Ohle所提出的推论提供确切的实验证据。四步反应包括由2,3-二-O-对甲苯磺酰基-D-葡萄糖一α-甲基呲喃甙(ⅩⅢ),经三苯甲基化,得糖浆状的2,3-二-O-对甲苯磺酰基-6-O-三苯甲基-D-葡萄糖-α-甲基吡喃甙(ⅪⅤ)。然后应用Purdie-Irvine的方法进行甲基化,得结晶的2,3- 二-O-对甲苯磺酰基-4-O-甲基-6-O-三苯甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅤ);在乙酸酐中以乙酰溴置换ⅩⅤ的三苯甲基,生成糖浆状的2,3-二-O-对甲苯磺酰基-4-O-甲基-6-O-乙酰基-D-葡萄糖-α-甲基吡喃甙(ⅩⅥ)。再直接在氯仿中在0°用甲醇钠处理,得到两种结晶产物;其一为水溶性的2,3-内醚-4-甲基-D-阿罗糖-α-甲基吡喃甙(ⅪⅩ),另一为溶于有机溶剂中的2,3-二-O-对甲苯磺酰基-4-O-甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅦ)。两者的结构均经彻底甲基化为已知的结晶的2,3-内醚-4,6-二-O-甲基-D-阿罗糖-α-甲基吡喃甙(ⅩⅪ)和2,3-二-O-对甲苯磺酰基-4,6-二-O-甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅧ),加以确定。将2,3-内醚-4-O-甲基-D-阿罗糖-α-甲基吡喃甙(ⅪⅩ)在1N氢氧化钠溶液中处理得到54%产率的3,6-内醚-4-O-甲基-D-葡萄糖-α-甲基吡喃甙(ⅩⅩ),与Haworth,Owen和Smith由3,6-内醚-D-葡萄糖-α一甲基吡喃甙经部分甲基化而得的产物相同。对吡喃糖甙中的2,3-内醚环转化为3,6-内醚环体系进行了简单的构象分析。

Magnesio-ferri olivine series were synthesized from the stoichiometricallymixed oxides at 30 kbar and 1000-1200℃. Fa values for five samples fromMg end-member to Fe end-member in the olivine series are 0, 25, 50, 75 and100, respectively. Synthetic experiments were performed with YJ-3000-tonhigh pressure apparatus. A series of measurements, including X-ray powderdiffraction, chemical analysis and infrared spectroscopy have been finished.These results indicate that with the increase of Mg content, the infraredabsorption...

Magnesio-ferri olivine series were synthesized from the stoichiometricallymixed oxides at 30 kbar and 1000-1200℃. Fa values for five samples fromMg end-member to Fe end-member in the olivine series are 0, 25, 50, 75 and100, respectively. Synthetic experiments were performed with YJ-3000-tonhigh pressure apparatus. A series of measurements, including X-ray powderdiffraction, chemical analysis and infrared spectroscopy have been finished.These results indicate that with the increase of Mg content, the infraredabsorption frequencies increase linearly, but unit cell parameters decreaseinversely. The above results show a complete solid solution in the Mg-Fe oli-vine series. These parameters are closely related to the atomic mass,ion-radiusand negativity of Mg and Fe. But they have nothing to do with the distribu-tion of Mg and Fe in crystal lattice.

橄榄石是上地幔的主要造岩矿物,也是陨石和月岩的重要矿物成分。研究镁铁橄榄石系列矿物,对探讨岩石圈和行星的物质演化、陨石的形成条件等具有重要意义。本实验在30kbar和1000—1200℃的含水条件下,由等化学计量的氧化物合成了从镁端员到铁端员的镁铁橄榄石完整系列矿物共五个样品。并对它们进行了X射线粉晶衍射、化学分析和红外光谱研究。结果表明随Fa值的增加,其晶胞参数呈连续地线性增加,并且有很好的相关关系:a=4.746+7.64×10~(-4)Fa(r=0.999);b=10.172+3.03×10~(-3)Fa(r=0.999);c=5.967+1.03×10~(-4)Fa(r=0.998)。r为相关系数。另外,随Fa值的增加,红外吸收频率降低,也存在着很好的线性相关关系。这表明镁铁橄榄石系列是完全固溶体系列,与镁铁置换有关,与阳离子的占位无关。这表明在合成的橄榄石结构中镁铁的分布基本上是无序的。而镁铁的质量、离子半径和负电性的差异是引起上述参数规律性变化的原因。红外光谱带的分裂则是橄榄石矿物结构中位置对称性降低的必然结果。

The mechanism and process of glauconite formation are discussed in this paper. The glauconite grains, sampled from the continental shelf of north part of South China Sea ( 116°08′-116°17′E, 21°20′-21°35′N ) and from the upper slop of East China Sea ( 128°00′E, 30°00′N), have various kinds of morphologies, most of them are as the infillings of foraminiferal shells. Their colour ranges coutinuously from dark, through greenish-black and greenish-yellow, to light yellow. The light colour grains usually contain the...

The mechanism and process of glauconite formation are discussed in this paper. The glauconite grains, sampled from the continental shelf of north part of South China Sea ( 116°08′-116°17′E, 21°20′-21°35′N ) and from the upper slop of East China Sea ( 128°00′E, 30°00′N), have various kinds of morphologies, most of them are as the infillings of foraminiferal shells. Their colour ranges coutinuously from dark, through greenish-black and greenish-yellow, to light yellow. The light colour grains usually contain the remains of organic shells. It can be divided into four stages for glauconite formation according to their colours and morphologies. By using the quantitative analysis of X-ray diffraction, the SEM photomicrographic observation, the chemical analysis and the synthetic experiment, in order to reveal the genesis of the glauconite within the shells of organism.

本文探讨了南海与东海的生物状海绿石成因,研究结果说明,在其形成与发育过程中,生物壳类弱还原的微环境是十分重要的。它有利于二价铁氢氧化物向生物壳内迁移与富集,和Al、Mg的氢氧化物一起,吸附带负电的SiO_2胶体,发生胶凝沉淀,进一步陈化结晶成为含膨胀层63—68%的浅黄色生物状海绿石,随着凝胶陈化作用的进行,大部分生物壳壁脱落,颗粒从海底表层软泥水中吸附大量钾离子,最后形成了膨胀层25—35%的黑色生物状海绿石。

 
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