Some features of the movement of internal particles within the concrete accompanied with settlement, segregation,and bleeding are analysed and investigated in this paper,and some methods for reducing the concrete shrinkage such as stipulating the concrete curing conditions,employing the skeleton effect of coarse aggregate,and creating nonhomogeneous phase coring are also investigated.
分析研究了混凝土沉降、离析、泌水时内部颗粒的运动特征和利用混凝土养护条件、粗骨料骨架作用以及非均态成核等方法来降低混凝土的收缩。
The interfacial tension,energy of formation and critical radius of nuclei of the crystal at different temperature are calculated based on classical homogeneous nucleation theo.
本文对硒酸氢铷 (RbHSeO4 ,RHSe)晶体生长过饱和溶液的均匀成核过程进行了初步的研究。
3,the homogeneous nucleation play a dominating role in the nucleation;when S<1.
3时,均匀成核起主导作用;当S<1。
Mechanism of homogeneous nucleation in supersaturated sodium aliminate solutions;
过饱和铝酸钠溶液中Al(OH)_3均相成核机理
Using urea as homogeneous precipitation agent,nanosize zinc oxide crystalline with a small size and a narrow size ditribution has been synthesized at 130℃ and a reaction time 2～5h by homogeneous nucleation method in hydrothermal process.
Zn2 +的均相成核与其浓度、OH- 的浓度有关 ,体系中Zn(OH) 2 的过饱和度越大 ,则成核数量越多 ,所制备的氧化锌颗粒越小 ;与以氢氧化锌胶体为前驱体的共沉淀技术相比 ,均相沉淀技术有利于氧化锌纳米晶粒均匀生长 ;此外 ,添加有机物作分散剂可以减弱微小晶粒间的叠合生长 ,有利于制备均一性较好的纳米氧化锌。
The pre expansion operation of rapid expansion of supercritical solution (RESS) is investigated by classical homogeneous nucleation theory in this article.
用均相成核理论分析了超临界ＣＯ２ 快速膨胀法（ＲＥＳＳ）制备灰黄霉素微细颗粒过程中的预膨胀操作。
Ferrite MgFe2O4 coated carbonyl iron composite powder was prepared by heterogeneous nucleation combined with the liquid deposition method to improve the oxidation resistance performance of carbonyl iron powder.
采用非均匀成核和化学沉淀相结合的方法制备了MgFe2O4铁氧体原位包覆羰基铁超细复合粉体,对制备工艺及其抗氧化性能进行了研究。
Al_2O_3 nanosized composite powders encapsulated by ZrO_2(3Y) were prepared by heterogeneous nucleation combined with the co-deposition and were molded by dry pressing.
用非均匀成核法和液相共沉淀法相结合的方法制得ZrO2(3Y)包裹Al2O3纳米复合粉体,经干压成型,常压烧结制备ZTA复相陶瓷。
ZrO_2(3Y)encapsulated Al_2O_3 nano composite powders were prepared by heterogeneous nucleation combined with the liquid co-deposition method using pH buffer solution as precipitator.
以pH值缓冲溶液为沉淀剂,用非均匀成核和液相共沉淀相结合的方法合成出了ZrO2(3Y)包裹Al2O3纳米复合粉体。
The precursors of hydrate ferric oxide and basic nickel carbonate coated graphite microspheres were synthesized by the aqueous heterogeneous nucleation process using ferrous (Ⅱ) sulfate, nickel sulfate, sodium carbonate and graphite microspheres as main raw materials.
以硫酸亚铁、硫酸镍、碳酸钠和石墨微球为主要原料,利用非均相成核工艺制备出水合氧化铁和碱式碳酸镍均匀包覆石墨的前驱体微球;通过对前驱体进行热还原处理得到了晶粒约为50nm的γ-FeNi合金颗粒层包覆石墨的产物微球。
The precursor microspheres of Fe_2O_3·nH_2O coated with graphite were synthesized by the aqueous heterogeneous nucleation using ferrous(Ⅱ)sulfate,sodium carbonate and graphite microspheres as main raw materials.
以硫酸亚铁、碳酸钠和石墨微球为主要原料,利用非均相成核法制备出Fe2O3。
Heterogeneousnucleation Coating Technique of Graphite and Its Application;
石墨表面非均匀成核包覆技术与应用研究
MOLECULAR DYNAMIC SIMULATION OF THE HOMOGENEOUS AND NON-HOMOGENEOUS NUCLEATION OF ARGON VAPOR
氩蒸气均匀核化与非均匀核化的分子动力学模拟
The results indicate that phosphate film forms at first at the boundaries between ferrite and graphite.
结果表明，磷化膜晶核首先在铁素体－石墨界面等处形成，是一个不均匀形核过程。
Molecular Dynamic Simulation on Homogeneous Nucleation Rate of Argon Vapor
氩蒸气均匀核化率的分子动力学模拟
Mash the bananas with a tablespoon, adding vanilla extract and salt. Mix well. Chop the walnuts and dried cranberryes.
香蕉用汤勺捣成泥，加入香草精和盐拌均匀。将蔓越橘和核桃仁切成小粒状。
Optimizing Yanbian Cow Oocytes Mature in vitro and Cleavage System after Nuclear Transfer Based on Uniform Design
基于均匀设计优化延边黄牛卵母细胞体外成熟及核移植后卵裂体系
a fabric of uneven yarn that has an uneven knobby effect.
由不均匀的纱线制成的有不均匀的解的纤维制品。
Whip the ingredients (up) into a smooth paste.
把配料搅打成均匀的糊状。
Whip the ingredients into a smooth paste.
把配料搅打成均匀的糊状.
inhomogeneity of chemical composition in the solar nebula
太阳星云化学成分不均匀性
Quickly increase temperature more uniform temperature in hearth, in hearht, higher pass-rate of production.
升温快，炉膛内温度均匀，产品成品率高。
The wire spring was evenly coiled.
这根金属丝弹簧是均匀盘绕成的。
Mohr-style pipets are made from glass tubing of uniform bore. Mohr
型移液管由孔径均匀的玻璃管制成。
The research of uniform circular array MVDR beamforming algorithm
均匀圆阵MVDR波束形成算法研究
Correction of imaging non-uniformity for multi-TDICCD mosaic camera
多TDI-CCD拼接相机成像非均匀性的校正
Generation Algorithm of Skewed Hilbert Curve
非均匀Hilbert曲线的生成算法
Generating test data of Web service based on uniform design method
用均匀设计法生成Web服务的测试数据
Synthesis and Non-uniformity Correction of TDI-CCD Multi-tap's Imaging
TDI-CCD多抽头图像合成及非均匀性校正