粒徑組 的英文怎麼說
中文拼音 [lìjìngzǔ]
粒徑組
英文
fraction of particle size-
Abstract : two important factors, the loss of the catalyst components and the change of the catalyst particle diameter, which lead to the decay of the catalyst for amination of fatty alcohols, were studied. the dimension analytic method is applied successfully to determine the relations among the components loss, the particle diame - ter and the times of the catalyst used in repeated experiments
文摘:對引起脂肪醇胺化用催化劑失活的重要因素? ?組分流失及粒徑變化進行了研究,運用因次分析方法將催化劑的重復使用次數、組分流失及粒徑等因素進行了關聯,並取得了成功。It focuses on the theory of the mineral functional materials " improving the anti - chloride permeability and the chloride binding. the main achievements of this article include : 1 ) use the technology of xrd, sem, bet, laser particle size distributor etc to test the component, the construction, particle size distributor, specific surface etc of micro - silica, ultra - fined slag, high quality fly ash, meta - kaolin clay, four types of the mineral functional material, theoretically analysis the functions which the four mineral functional minerals act on cement concrete, namely pozzolanicity effect, filling effect, micro - aggregate effect, surface adsorption effect and so bring into play the affect of plastification, lowing of temperature, reinforcement, improvement of durability. base on this analysis we can conclude that the proper diameter of the mineral functional material is 5 m - 15 m, that is blain fineness 4500cm2 / g - 7500cm2 / g
本論文的主要成果包括以下幾個方面: ( 1 )採用xrd 、 sem 、 bet 、激光粒度分析儀等多種測試手段,探明了以硅灰,超細磨粒化高爐礦渣,優質粉煤灰及偏高嶺土超細粉等4種超細礦物功能材料的組成、結構、粒度分佈、比表面積等基本性質;從理論上分析了礦物功能材料在混凝土中的4種效應,即火山灰效應、填充密實效應、微集料效應、表面吸附效應,並由此發揮出增塑、溫峰削減(降熱) ,增強及耐久性改善等作用;通過相關理論分析,推導出礦物功能材料的合理粒徑范圍在5 m 15 m ,即勃氏比表面積為4500cm ~ 2 g 7500cm ~ 2 g 。The emulsoid particle size and its distribution were determined by laser particle sizer. the composition changes of acr were inspected by ir, and the core - shell structure was observed by tem. the morphologyes of acr resin particles were inspected by polarization microscope at last
通過激光粒度分析儀對所合成的乳膠粒徑及其分佈進行了分析測試,藉助于ir考察了所合成的acr的組成變化,並通過透射電鏡對所合成的acr的核殼結構進行了驗證,最後藉助于偏光顯微鏡觀察了破乳乾燥后得到的acr粒子。The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體,需要嚴格控制配方中各種原材料的含量,優化配方;由於粉體活性受預燒條件的影響,所以對不同要求的鐵氧體選擇的預燒條件就不一樣,適當降低預燒溫度有利於獲得較高的起始磁導率,而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求,可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件,本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝,適宜的燒結工藝可以獲得理想微結構和組成,從而得到高性能的鐵氧體材料;而從材料的微結構上來看,要提高材料的截止頻率,就要適當地細化晶粒、增加晶粒內部的氣孔。When sno2 wt % was controlled for 10 %, the square resistance of sn - in2o3 was minimum. through the characterization of in2o3 / sno2 nano powders, some conclusions were drawn : sno2 nano powder is rutile structure, and in2o3 and sn - in2o3 nano powders are cubic structure. in2o3 / sno2 nano powders were well dispersing with spherical uniform grain, and the mean grain was 4 - 50 nm
通過對inzo3 / snoz納米粉體表徵,得出inzo3 / snoz納米粒子多呈球形、顆粒均勻、分散性良好、組分均勻、純度較高、平均粒徑在4一50lun左右、比表面積達67一156mz / g ; snoz納米粉為正四面體金紅石結構, inzo3和sn一inzo3納米粉為體心立方結構。Gold colloids with different particle sizes were synthesized using hydrogen tetrachloroaurate as the precursor and " na3 - citrate / nabh4 as the reducing agents. two - dimensional arrangements of gold particles and layered composites of gold with polymer pdda were prepared
以氯金酸為前驅體,以na _ 3 - citrate 、 nabh _ 4為還原劑制備了不同粒徑的金納米粒子,組裝了金納米粒子的單層或亞單層膜及其與聚合物pdda的多層復合膜。Theimportant technological parameters, which influence significantly thecharacterization of the screen - printed ysz electrolyte thin films, includingparticle size and particle size distribution of the starting ysz powder, composition of the screen - printing ink, sintering temperature of the screenprintedysz green films and printing times were investigated in detail
系統研究了影響絲網印刷工藝的幾個重要參數,如ysz粉末的粒徑及粒徑分佈、印刷漿料的組成、電解質膜坯體的燒結溫度和印刷層數。The organic matter, total n, hydrolytic n were increased, then reduced with the increase of abandoned time. the loss of organic c got up to 59. 4 % in abandoned land. in 0 - 20cm, the sand content of 0. 25 - 0. 05mm was increased gradually, the average content of sand in the abandoned land was up to 76. 84 %, the sand contents of silt and sand was gradually reduced, the soil mechanic compose became coarse
隨撂荒年限的增加,土壤有機質、全氮、堿解氮等主要養分均表現出先降低后增加的趨勢;撂荒地有機碳的損失平均達到59 . 4 ;在撂荒地表面0 - 20cm范圍內, 0 . 25 - 0 . 05mm粒徑的砂粒含量逐漸增加,各撂荒地砂粒平均含量達76 . 84 ,粉粒和粘粒含量逐漸降低,土壤機械組成出現粗化現象。Research on the particle size distribution and its effect on the physiology of marine phytoplankton
海洋浮游植物粒徑組成及其生物粒徑效應研究This paper gives a brief introduction of the formation mechanism of sma and the handing property of pavement from the aspects of theory and research. at the same time, this paper also studies the effect of aggregate size on road - related performance in some different grads. except, it also having inspected to use the sbs, the pe and the combination material of sbs and pe to analyze the influence to the function of material road
瀝青瑪蹄脂碎石混合料( sma )以其溫度穩定性好、抗滑性能優良、低噪音、使用耐久等優點在公路建設中越來越受到重視,本文對sma組成特點,強度形成機理與路面使用性能從理論和試驗研究角度進行論述,並針對不同級配的瀝青瑪蹄脂碎石混合料,分析了粗、細集料的粒徑變化對其路用性能的影響,同時也考察了用sbs 、 pe 、 sbs和pe復合改性后的瀝青結合料對混合料的路用性能影響。The nanoparticle titanium dioxide was prepared with tnb as raw material by the sol - gel process, the effects of the alcohol salt concentration the kind of solvent the water volume hydro1yze temperature. the dried ways of the wet gel and the calcined temperature of the dry gel on the specific surface area. particle size
本文以鈦酸丁酯為前驅體,利用溶膠?凝膠法制備了納米級的tio _ 2粉體材料,通過正交實驗研究了醇鹽的濃度、溶劑的種類、水含量、水解溫度、乾燥條件和煅燒溫度等工藝條件對納米粒子的比表面積、粒徑大小及分佈、晶相組成等性能的影響。In order to obtain well effect on the improve the strength and toughness, the interface on the grain and the resin matrix should have a good glue performance ; the diameter of the grain should be small and the shape component of grain patch and fiber should be suitability
要獲得好的增強增韌效果,填料顆粒與樹脂基體界面上應有好的粘結性能;顆粒粒徑應小且填料粉體中粒狀、片狀和纖維狀的組分應適當。In order to explore the effects of particls size distribution on structure and properties of cement paste, based on measuring the water requirements of slag with different size distributions on the same fluidity degree, it was revealed the that different size distributions determine different packing densities, and the formula of packing density with continuous particle size distribution for cement paste was developed
摘要為了研究粒徑分佈對水泥石結構與性能的影響,通過測定多組粒徑分佈不同的礦粉在流動度相同情況下的需水量,得到礦粉不同粒徑分佈所對應的不同的堆積密度,推導了漿體中連續粒徑粉體的堆積密度公式。X - ray diffraction ( xrd ) and transmission electron microscopy ( tem ) are utilized to analyze the phase, structure and size of the magnetic particles
利用x射線衍射儀( xrd ) 、透射電鏡( tem )對制得的磁粒子的組成、結構及粒徑進行了分析。Eoc and caco3 were combined to toughen and reinforce pp to study the effect of factors such as the composition, the diameter and shape of filler, the nature of elastomer, dispersing morphology and matrix type on the properties of pp / eoc / caco3 composites
結合起來增韌增強聚丙烯,研究了組成比、填料粒徑及形狀、彈性體性質、分散形態和基體類型等一系列因素對pp用occaco3復合材料性能的影響,揭示該體系發生脆韌轉變的基本條件是l人( 。The test results have showed that the w - cu powder produced by the homogeneous precipitation process has a near spherical shape, a particle size ranging from 50 to 200nm and a uniform distribution of w and cu gradients
研究結果表明,均相沉澱法制備的w - 30wt . cu復合粉末顆粒明顯呈球狀, w 、 cu組分呈均勻、彌散分佈,透射電鏡觀測顯示其粒徑范圍在50 - 200nm之間,為超細粉體。According to lithology, color, size of grain, sedimentary structure, and fossil types, the matuo formation vertical lithofacies are grouped into four types, represented tidal flat circumstance dominated by tide and shoreface circumstance dominated by wave, respectively
根據巖性、顏色、顆粒粒徑、沉積構造以及所含有化石類型,可以將雁石坪地區瑪托組劃分為4個巖性組合,它們分別代表以潮汐作用為主的潮坪?海灣環境和以波浪作用為主的濱面環境。The surface of ce02 - ti02 films were very smooth and difficulty to crystallization. the ceo2 - tio2 complex films were nanocrystalline microstructure or microcrystalline even if to heat the substrates or to anneal the films. the ceo2 and tio2 nanocrystalline were not easy congregate and bigger because of heterogeneity interface disturb and have many defect
組成ceo _ 2 - tio _ 2混合薄膜顆粒粒徑在納米尺度范圍3 ? 50nm ,與純ceo _ 2 、 tio _ 2薄膜相比,具有更小的表面粗糙度和更難結晶,這是由於異質材料晶界的相互干擾,使同質顆粒之間難于聚集而結晶長大,薄膜處于納米晶或雛晶態,即使加熱基片或薄膜進行熱處理也無明顯變化。The paper introduces the methods of drying and pycnometer for sediment yield of total precipitation erosion of observation model and validates the reliability of the measurement through check tests of sediment concentration with different particle sizes
摘要介紹了測量模型次降雨侵蝕產沙量的烘乾法和密度瓶法,並通過不同粒徑組泥沙渾水含沙量的對比試驗,驗證了測量方法的可靠性。Relation between sulfur and magnetic parameters in xuzhou urban topsoils and its environmental significance
有機質以及粒徑組成與磁學參數的關系分享友人