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adsorption
相关语句
  吸附
     The Electrochemical Behaviors of Sb Irreversible Adsorption on Pt Single Crystal Electrodes and Kinetics of Hcooh Oxidation
     Pt单晶电极表面Sb的不可逆吸附及性能与甲酸电催化氧化反应动力学
短句来源
     Study on the High Activity Mechanism, the Adsorption Properties and the Hydrolysis Kinetic of Xylanase from Sp.E-86 Strain
     Sp.E-86菌株高产木聚糖酶机理和吸附特性及反应动力学的研究
短句来源
     Studies on Adsorption Behavior of CO_2 on Porous Solids near the Critical Temperature
     临界温度附近CO_2在多孔固体上吸附行为的研究
短句来源
     Study on the Controlling of Element Phase Transformation by Adsorption/desorption in the Changjiang Estuary
     长江口悬浮泥沙的吸附—解吸作用对元素固—液相态转化控制的研究
短句来源
     Study on the Mechanism of Adsorption at the Liquid-solid Interface and Renaturation of Lysozyme in Liquid Chromatography
     液-固界面的吸附及溶菌酶在液相色谱中复性的应用研究
短句来源
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  吸附作用
     Research on Mechanism of Adsorption between C_3H_6/C_3H_8 and AgCl,CuCl with Quantum Chemistry Calculation
     C_3H_6/C_3H_8在AgCl、CuCl上吸附作用的量子化学计算研究
短句来源
     Adsorption of Cd~(2+),Pb~(2+) and Hg~(2+) by dietary fibres from four seaweeds
     4种海藻膳食纤维对Cd~(2+)、Pb~(2+)、Hg~(2+)的吸附作用
短句来源
     Adsorption of Pb~(2+),Zn~(2+)、Fe~(3+) and Fe~(2+) onto the product was also examined.
     络合滴定法测定Pb2+、Zn2+、Fe3+和Fe2+的吸附作用;
短句来源
     Other metal ions, such as Na+, Ca2+, Mg2+, Zn2+,Al3+and K+. had no obvious influence on the adsorption action.
     其他金属离子如Na+、Ca2+、Mg2+、Zn2+、Al3+、K+对吸附作用的影响不大。
短句来源
     The adsorption of heavy metal ions such as Cu 2+ 、Pb 2+ 、Cd 2+ on vermiculite was studied.
     以蛭石为吸附剂 ,研究了蛭石对Cu2 +、Pb2 +、Cd2 +的吸附作用
短句来源
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  吸附量
     INVESTIGATIONS IN THE DETERMINATION AND CALCULATION OF SPECIFIC SURFACE AREA AND PORE SIZE DISTRIBUTION Ⅱ.A NEW GAS CHROMATOGRAPHIC SYSTEM FOR THE ADSORPTION DETERMINATION
     比表面积与孔径分布的测定和计算中一些问题的研究 Ⅱ.一种新的测定吸附量的色谱法气路
短句来源
     INVESTIGATIONS IN THE DETERMINATION AND CALCULATION OF SPECIFIC SURFACE AREA AND PORE SIZE DISTRIBUTION——Ⅰ.THE STANDARdIZATION FOR PEAK AREA IN THE ADSORPTION DETERMINATION AND THE INVESTIGATION OF THE CALCULATION FOR PORE SIZE DISTRIBUTION
     比表面积与孔径分布的测定和计算中一些问题的研究 Ⅰ.吸附量测定中峰面积的标定和孔径分布计算的研究
短句来源
     FLOW-DTA ADSORPTIVE CALORIMETRIC SYSTEM ——Ⅰ.THE APPARATUS AND PROCEDURE FOR THE DETERMINATION OF THE ADSORPTION HEATS OF BENZENE ON HM
     流动-差热吸附量热系统 Ⅰ.装置考察与氢型丝光沸石(HM)-苯体系吸附热的测定
短句来源
     Correlated statistical Analysis on Surface Properties of Biomaterial and Blood Compatibility Ⅱ. Effect of Polymer Hydrophilicity on Plasma Protein Adsorption
     生物材料的表面性质与其血液相容性的相关统计分析——Ⅱ.高聚物的亲水、疏水性对材料表面血浆蛋白吸附量的影响
短句来源
     FLOW-DTA ADSORPTIVE CALORIMETRIC SYSTEM Ⅱ.STUDIES OF ADSORPTION HEATS ON H-MORDENITE
     流动-差热吸附量热系统Ⅱ.氢型丝光沸石吸附热的研究
短句来源
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  “adsorption”译为未确定词的双语例句
     Studies on Novel Four-Bed Pressure Swing Adsorption Process for Hydrogen Purification
     新型四塔变压吸附提纯氢气过程研究
短句来源
     Computation and Optimization of Non-isothermal Pressure Swing Adsorption Process of Air Separation for Oxygen
     非等温变压吸附空分制氧过程的计算和优化
短句来源
     Adsorption of CH_4, N_2, CO_2 Single and Multicomponent Gas on Coal
     煤对CH_4、N_2、CO_2及多组分气体吸附的研究
短句来源
     Preparation of Spherical Cellulose/TiO_2 Composite Adsorbent for Expanded Bed Adsorption and Its Application to Purification of Proteins
     球形纤维素/钛白粉复合扩张床吸附剂的制备及其在蛋白质纯化中的应用
短句来源
     The Research on Fabrication Technique of Substrated Palladium-Yttrium Alloy Membrane and Theroy Study of Surface Adsorption Behavior for Hydrogen Purification
     有支撑钯钇合金渗氢膜制备技术及表面吸附行为理论研究
短句来源
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  adsorption
Study on Adsorption and Separation of Naringin with Macroporous Resin
      
X-5 resin, with higher adsorption and easier desorption of naringin, was selected from five kinds of macroporous resins through static adsorption and desorption experiments.
      
Effects of concentration, pH value, and flow rate of naringin extract on the adsorption of naringin by X-5 resin were studied.
      
The experimental results show that the adsorption isotherm of naringin by X-5 resin can be described by the Langmuir isotherm equation.
      
The static maximum adsorption capacity of naringin is 32.6 mg/g with naringin concentration at 2.7 g/L, while the dynamic adsorption capacity of naringin is 23.8 mg/g with naringin extract flow rate at two times that of resin volume per hour.
      
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Wang's theory for determining the approximate configurational partition function of the adsorbed layer is modified in two different ways. One is to assume that the configurational energy should be corrected: the other to advocate that the deficiency due to a wrong expression for the a priori probability of the. central site is more significant.The configurational partition function is evaluated is both methods and the adsorptipn isotherin and the beat of adsorption computed for the case of quadratic lattice...

Wang's theory for determining the approximate configurational partition function of the adsorbed layer is modified in two different ways. One is to assume that the configurational energy should be corrected: the other to advocate that the deficiency due to a wrong expression for the a priori probability of the. central site is more significant.The configurational partition function is evaluated is both methods and the adsorptipn isotherin and the beat of adsorption computed for the case of quadratic lattice With dipole interaction. values for the last two quantities when a uniform continuous distribution of the distant adsorbed particles is assumed are further given for comparison. The second method, which surpasses the first, is compared with Kirkwood's method. in the case of hexagonal lattice with neighbour interaction. Numerical work is also carried out in this case.

本文就王竹溪先生之理论用两种不同方法加以改良。一种为改变能量公式,另一种为改变中心格点之或然率。用此二法皆可求得近似配分函数。所得关於方格在偶极作用情形下之粘附等温曲线及粘附热之数值用图比较之,并与旧日平均连续分布之理论比较。本文所用之第二法实较第一法为佳,故应用之以讨论一三角格在相邻作用情形下之粘附现象,且应用Kirkwood理论以为比较。数值结果亦有图表之。

Plasticizing agent is an organic surface-active admixture for cement mortar and concrete. It may be introduced also as an "addition" to the clinker during the grinding process in the manufacture of plasticizing Portland cement. In the USSR, the plasticizing agent under the name of "has been extensively and successfully used in construction works.The plasticizing agent is prepared by chemical treatment of the waste from the alcoholic fermentation of sulfite liquor in pulp manufacture. It contains calcium lignin...

Plasticizing agent is an organic surface-active admixture for cement mortar and concrete. It may be introduced also as an "addition" to the clinker during the grinding process in the manufacture of plasticizing Portland cement. In the USSR, the plasticizing agent under the name of "has been extensively and successfully used in construction works.The plasticizing agent is prepared by chemical treatment of the waste from the alcoholic fermentation of sulfite liquor in pulp manufacture. It contains calcium lignin sulphonate as an effective component and thus possesses hydrophilic property. Due to the adsorption of the agent, a colloidal layer is formed on the surface of the cement particle; hence the effective dispersion and the increase of lubricity between the particles.Following the Soviet experience of CCB, the Materials-Testing and Research Laboratory of Shanghai Civil Engineering Bureau successfully experimented with the preparation of thermal polymer of the plasticizing agent, and a series of tests on the characteristics of the agent were made. This paper attempts to describe the method of preparation and the main properties of the agent.The addition of the agent in an amount of 0.1—0.2% of cement (dry weight) markedly improves the workability and the texture of the mortar and concrete mixtures. It reduces the water requirement and the cement content. It improves the impermeability and durability of the hardened mortar and concrete.The agent has a retarding effect on the setting of cement. It lowers the early strength of mortar and concrete, while the strength of later age is higher than those without admixtures. The use of CaCl_2 accelerator in 0.5—1% of cement by weight speeds up the rate of development of the early strength.The proper dosage of the agent depends upon the properties of cement. Therefore, certain tests should be made with the specified cement and aggregates on the job before the adoption of the agent.

本文介紹亞硫酸鹽酒精液滓塑化劑實驗室中的試製以及對於水泥膠砂及混凝土技術性能方面的作用。首先說明一些塑化劑的理論及亞硫酸鹽酒精液滓的技術規格,再簡要的介紹上海市政工程局材料試驗研究所試驗研究的經過和結果;最后综合蘇聯對於塑化劑和塑化水泥使用的先進經驗。塑化剂是一種有機的表面活動性物質,利用造紙工業发液進行酒精發酵所得的液滓。加入微量的塑化劑——約為水泥重量的0.1—0.25%,可以顯著的改善膠砂和混凝土的性質。在增加流動性、改善和易性和提高耐久性方面,有十分的效用,尤其是對節約水泥用量有极大的意義。祖國的建设事業正迫切需要這類新型的建築材料,因此提供一些试驗研究結果,以供国家主管機關和科技工作同志們深入研究和推廣使用時的參考。

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with...

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with its degree of reduction, from 1.13 to 1.26. The average ratio of our preparations is 1.23. (3) The absorption spectra(230-600 mμ) of oxidized and reduced cytochrome c have been measured. The molecular extinction coefficient at 550 mμ of oxidized, 0.43% iron, cytochrome c is 0.80×10~4. This value differs considerably from that reported in the literature. (4) Some enzymic properties of cytochrome c containing 0.43% iron are compared with those of a preparation containing 0.34% iron and are found to be identical. Both can be converted into''endogenous" cytochrome c. (5) Whether pure cytochrome c contains more than 0.43% iron has been discussed. It seems that no convincing evidence has been presented to show that cytochrome c preparations with iron content higher than 0.43% as obtained by some workers do not contain a small amount of iron-rich impurity.

(一)用陽離子交换劑(synthetic zeolite)直接吸附高等動物心肌抽提液一次,並用3.84M硫酸銨作洗脫劑,即可製得含鐵量0.43%的細胞色素c。因此提供了一個大量製備純細胞色素c的簡單方法。 (二)含鐵量0.43%的細胞色素c,它的550mμ和278mμ光密度的比值,視產品的還原程度而定,其範圍從1.13到1.26,我們所製得的產品,其比值在1.23左右。 (三)我們测量了氧化及還原的細胞色素c(含鐵0.43%)從230mμ到600mμ的吸收光譜,並發現和前人所報告的略有不同。氧化細胞色素c在550mμ的消光係數為0.80×10~4,此值與文獻上的數值相差很多。 (四)我們比較了含鐵量0.43%的細胞色素c和含鐵量0.34%的細胞色素c的一些酶性質,證明他們是相同的;並且兩者都可以變成“內源”細胞色素c。 (五)我們認為現有的實驗證據不足以說明純細胞色素c的含鐵量大於0.43%。

 
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