粒度級離 的英文怎麼說
中文拼音 [lìdùjílí]
粒度級離
英文
fractionation-
Particle size analysis ; size analysis by air classification with centrifugal counterflow classifier
粒度分析.用離心逆流分粒器風力分級法進行粒度分析Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下，不同流速對熱管空氣預熱器壁面溫度的影響；然後對影響整個流場分佈的各種因素：包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬；最後提出在分流煙道轉彎處加裝導流板，並模擬加裝導流板后的流場分佈，得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈，以論證加裝導流板能達到流場均勻化的作用。Moreover, hrtem observations indicate that the process is very selective : even in apparently homogenous illite or i / s, some crystals went opening and some remain unchanged. and the replacement of k cations by alkylammonium cations is not restricted to crystal edges, but extends to entire interlayer. the above facts are the basis of alkylammonium cations method applied to the diagenetic age of sedimentary rock
Iaa法是以沉積巖的粒度?年齡譜為基礎的，利用這種方法可以獲得同一樣品不同粒級伊利石的年齡，隨著粒級的減小，樣品的年齡也減小，當碎屑伊利石的含量趨于零時，可以得到自生伊利石的成巖年齡；烷基胺陽離子取代法是一種化學方法，利用烷基胺陽離子的選擇性替代性，可以去除碎屑伊利石成分中的k離子，從而能夠獲得自生伊利石的年齡。By sims method, we analyzed the profile distribution of mn and c, found that increasing the annealing temperature is beneficial to the diffusion of mn, but has no influence to c. mfm and squid measurements demonstrate that sub micron single - domain magnetic mnas particles found in sample annealing at 850 for 15s show ferromagnetism at room temperature and have a high curie temperature more than 300k
利用二次離子質譜方法對mn和c在樣品中的分佈進行了研究，發現退火溫度的上升，有利於mn的擴散；而對c的分佈影響較小。利用磁力顯微鏡和超導量子干涉儀對樣品的磁性質進行了研究。發現在850 + 15s退火處理的樣品中形成了亞微米級單疇磁性mnas粒子；經測試其在室溫下呈現出鐵磁性，居里溫度在300k以上。In the discrete process the mostly used method, the control volume method, is used. in the study of gas - particle flows numerical simulation, the gemchip arithmetic is often adopted. but it cannot be used directly in the investigation of clean room because of the low volume occupancy ( its volume fraction orde r is 10 - 10 below )
採用控制體積法對氣粒多相流的控制方程進行離散，在gemchip演算法基礎上，由於室內懸浮顆粒的體積分數數量級在10 ~ （ - 10 ）以下，無法直接求解，在研究中通過直接求解顆粒數密度，不直接求解顆粒的體積分數對離散方程進行了求解。This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects
通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。A worm grading device is installed in the machine, which will release the satisfied particle from the grinding chamber to avoid over - gringing. in this way we not only makes super fine powder, but also we make the particles uniform and even. this machine can carry out dry - grinding and grading operation for all kinds of organic substance and mineral substance, so the powder made by this machine is widely used in the chemicals, metallurgy, mine, energy, electronics, medincine, pesticide, plastic, paper - making, pigment, painting, dyestuff, grinding - stuff, food and cosmetics industries
該機內裝高效蝸輪分級機，能使被粉碎后的合格細粉及時分離，迅速排出機外，避免「過粉碎」 ，不僅能制取超微粉，而且還有產品粒度分佈窄、均齊性高、顆粒形狀便干控制、產品分散性好、可廣泛應用於化工、冶金、礦業、能源、電子、醫藥、農藥、塑料、造紙、顏料、塗料、染料、磨料、食品、化妝品等行業，能對各種有機物和無機物進行乾式粉碎和分級作業。On the basis of photoelectronic dynamics, an energy model at room temperature that describes the cubic silver halide microcrystals not doped or doped with metal ion complex at deferent doping amounts is proposed, and then a series of differential equations describing the relationship between carriers number are set up
本工作以光電子動力學理論為依據，建立了一種描述純鹵化銀微晶及摻有不同濃度金屬離子絡合物的鹵化銀立方體微晶在室溫下的能級模型，由此生成了一組描述粒子數關系的微分方程。Utilizing the property that the grains and the mixed stone have different specific weight and suspension speed as well as the airflow that is blown upward through the grains, the machine keep heavy impurity at the lower layer and uses a screen to force the material and impurity to move in different directions, thus separating the two of them
該機是利用糧食與並肩石比重和懸浮速度不同的特性，藉助向上穿過糧流顆粒料間隙氣流作用，促使糧食與並肩石分級及重雜在下層，二者在往復運動篩板的作用下各自從相反方向運動，從而把並肩石從糧食中分離出來。Measurement of the fragment lengths was accomplished with the use of scion image analyzed software, which allows a curved fragment to be measured in a stepwise manner at nanometer level resolution, and the change laws of three forms of dna, supercoil, open circular and linear form as the dose increased were obtained
藉助于afm ，對粒子和兩種重離子誘發的dna損傷進行了納米水平的結構分析，並結合scionimage圖像分析軟體的分段測量方法，對輻照誘發的dna碎片長度分佈進行了納米級分辨的測量。So far, although numerous synthetic routes, such as suspension polymerization, emulsion polymerization, dispersion polymerization, etc, have been developed to produce magnetic composite microspheres, there are still a lot of problems need to be resolved for preparing ideal and useful magnetic composite microspheres. these problems include low magnetic content, low efficiency of encapsulation, big size, polydispersity of particle size, the contamination of composite microspheres by some additives, etc. it is realized recently that the preparation of high quality magnetic composite microspheres relies on the breakthrough of synthesis approaches and the detail understanding of the polymerization mechanism in the presence of magnetic inorganic particles
本文針對當前磁性復合微球磁含量低、潔凈度較差，且主要是微米級產品的研究現狀，以提高磁性復合微球磁含量、提高復合微球的潔凈度及在維持較高磁含量的基礎上有效減小復合微球的粒徑為主要目標，採用改進乳液聚合法、細乳液聚合法及活性游離基dpe法三種方法制備了不同粒徑及磁含量的磁性復合微球。In the accretion disks in binary systems or at the centers of galaxies, particle collisions would produce an inflow of mass that is too small by many orders of magnitude to produce the brilliant luminosity of these disks
在雙星系統或星系中心的吸積盤中，粒子的碰撞只會引起很少的質量向內流動，距離要產生可達到這些圓盤的耀眼亮度，還差了許多個數量級。分享友人