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The serial catalyst is characterized by large pore volume and pore diameter, high activity and stability. 該系列催化劑的主要特點(diǎn)是大孔容、孔徑、性和穩定性高。
The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore. 二是孔隙的尺寸很小，水溶液不能滲入到孔隙，不能到達基體。
The porosity,pore diameter and solubility of ceramsite filter made by these two methods were analyzed and compared. 研究添加成孔劑法制備的有球形宏觀(guān)孔的多孔氮化硅陶瓷在不同孔隙率和孔徑下的介電性能。
BET specific surface area,pore diameter and pore volume of the synthesized molecular sieves were 197?m~2/g,about 4.80?nm and 0.23?cm~3/g,respectively. 合成的介孔氧化鋯分子篩在450℃焙燒后;其BET比表面積達到197 m2/g;孔分布集中在4.;80 nm左右;孔體積為0
Porous TiC-Al2O3 was prepared via SHS technology. Composition,micro-structure,pore diameter distribution and element were analyzed by XRD,SEM,EDS etc. 利用自蔓延高溫合成技術(shù)制備了多孔TiC-Al2O3導電陶瓷,并用XRD、SEM、EDS對樣品的物相、微觀(guān)結構、孔徑分布及成分組成進(jìn)行了分析。
The most probable pore diameter of an unsupported composite membrane was about 4.3nm as characterized by nitrogen isothermal absorption measurement. 用等溫氮氣吸附實(shí)驗測定了非擔載膜的孔徑大小和分布;最可幾孔徑約為4.;3nm。
The Oolong tea juice was ultra-filtrated by using the plate-frame module and choosing three kinds of CA membrane with three pore diameter . 結果表明,超濾可以有效澄清烏龍茶汁,在合適的工藝參數下菜汁有效風(fēng)味成分保留率高,能截留大部分易發(fā)生沉淀的高分子物質(zhì),感官品質(zhì)佳。
In addition, several analytical methods frequently used for the calculation of surface area, pore diameter and microporosity have also been introduced. 本文針對氣體吸脫附分析技術(shù)之原理與測量方式進(jìn)行介紹，另外亦闡明幾種常用以計算孔面積、孔徑大小與微孔量等孔洞特性之數據分析方法。
The variation of the mass loss, packing density, surface area, distribution of pore diameter, amount of ash with the cyclical numbers were researched. 考察了活性炭的失重率、堆密度、比表面、孔徑分布及灰分含量隨活化次數的增加而變化的情況。
It is found that total pore volume and average pore diameter of the carbons increase with increase in the R/C ratio of the gel precursors. 已經(jīng)發(fā)現，總孔隙度和碳的平均孔徑隨著(zhù)凝膠前體的摩爾比的增加而增大。
With the same content of templates, the pore diameter of the generated material with glycerol as template is bigger than the one with pentaerythrite. 結果證實(shí)，所得粉體具有較高的比表面積和孔體積，孔徑與分子的鏈長(cháng)及取代基有關(guān)，在相近的模板劑含量下，由季戊四醇制得的孔徑大于以丙三醇為模板劑所得的粉體。
When the porosity and pore diameter reduced,the sound absorption curve moved to the low frequency zone and the frequency bandwidth increased at the same time. 隨著(zhù)孔隙率、孔徑的減小,多孔鋁的共振吸聲系數有所下降,吸聲頻譜曲線(xiàn)向低頻方向移動(dòng),且頻帶寬度展寬。
The coating penetration-resistance can be improved by decreasing pore diameter in coating, increasing slag viscosity and improving high temperature performance of coating matrix. 通過(guò)減小涂料氣孔直徑,增加中間包渣粘度及提高涂料基質(zhì)的耐高溫性能可以改善涂料的抗滲透性能。
When the reaction time elapsed, the changes of the pore surface and average pore diameter become mild and the pore volume reduced drastically and then remain unchanged. 反應時(shí)間增長(cháng)后，小孔表面積與平均小孔直徑變化趨緩，而小孔體積則大幅下滑再維持穩定。
By Federal interagency convention, the standard mean pore diameter size of filters used for separating water and sediment for chemical analysis is 0.45 micrometer (um). 根據聯(lián)邦機構的傳統，用于區分水和沉積物化學(xué)分析的濾膜的標準平均孔徑為0.;45微米。
The result showed that the mixture(1:1) of decane and 1,3,5-tri-methybenzene(TMB) had a beneficial effect on the pore diameter, which was increased to 4.5 nm. 三種擴孔劑中以三甲苯與癸烷摩爾比1：1的混合物效果最優(yōu)，可以將孔徑提高到4.;5nm；
The progress of synthesis of silica-alumina catalysts with the range of the pore diameter increases from micropore to mesopore and application of sol-gel method are reviewed. 摘要本文綜述了矽鋁催化材料合成方面的最新進(jìn)展即所合成的催化劑的孔徑從微孔向中孔發(fā)展以及利用以溶膠-凝膠法為代表的新制備技術(shù)。
Mercury test show that the ratio of capillary pore diameter large than 10 nm in cement paste, only 60% to MIF but 77% and 100% to LPC and structural material. 試樣壓汞法測試結果顯示，MIF材料水泥石中大于10nm的孔僅為總孔隙的60%25；
The fractal dimension of pore size distribution is determined according to the slope of the correlative line between pore volume and pore diameter in logarithmic graphics. 本文建立了土體孔隙分布的分形模型,導出用分維和進(jìn)氣值表示的水分特征曲線(xiàn)和滲透系數的理論表達式。
More and more researches reveal that mitochondria permeability transition pore not only takes part in this process,but also plays a significant role in it. 越來(lái)越多的研究顯示,線(xiàn)粒體滲透性轉換孔不但參與這一過(guò)程,而且占據重要地位,故備受關(guān)注。