比孔容 的英文怎麼說
中文拼音 [bǐkǒngróng]
比孔容
英文
specific pore volume- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
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A new pbg cover formed by digging air holes in the material is studied. lt is easier to be fabricated compared with the structure reported before
與文獻所報道的矩形氧化鋁棒結構相比,這種新的覆層結構由於採用了介質內鉆空氣孔的形式更容易加工實現。Comparative study of the biocompatibility of coral and porous - tcp bioceramic
多孔磷酸三鈣生物陶瓷和珊瑚的生物相容性比較研究Despite this over-evident contrast between them, dixon realized that their progress, deliberate and to all appearances thoughtful, must seem rather donnish to passing students.
兩人相比,差別鮮明,但狄克遜還是覺得,他們走起路來,那從容不迫的步子和深思熟慮的面孔,一定會使過路的學生認為他們都是學者。The addition of surfactant to etchant can protect surface from intense dissolution, and keep a relative similarity of dissolving activity between surface and tunnel walls. in order to gain a satisfactory enlargement of tunnels, the etchant temperature should be controlled at 70 - 90
3a / cm ,嚴重,使比容降低;溶液中添加表面活性劑可以有效地抑製表面溶解,提高比容;適宜的擴孔條件為:溫度80oc ; h +濃度lmol / l0The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously
通過侵蝕液中添加草酸、硫酸、乙二醇,改變侵蝕液al ~ ( 3 + )濃度和電流紋波等方法,研究了不同的侵蝕條件對隧道孔形貌和比容的影響,結果表明:草酸和硫酸既保護了鋁箔表面又促進了隧道孔孔壁的迅速鈍化,增加發孔密度。The studies of plane heterogeneity are as follows : the text counts the parameters of the sandlayers " geometric shape of different sedimentous microfacies ; speculates the conditions of lateral communication by sandstone density according to the method brought forward by j. r. l. allen ; gets a group of parameters including the reservoir thickness, porosity and coefficient of permeability by using kriging method according to the data of logging results ; makes certain the direction of coefficient of permeability with variation function by modeling globosity function ; divides the sandlayers into five types by using the method of flowing cell based on three parameters, that is x h, kxh and h / h, and accounts the favorable region. on the base of above - mentioned studies, the text evaluates the heterogeneity of sandlayers and gives the resolutions to these problems to serve the development of the field
Allen )等人提出的統計方法,用垂向上砂體密度的界限來推測砂體側向連通情況;根據每口井的測井解釋資料,利用克里金插值法對外間進行插值,得到了一組反映儲層特徵在平面上變化的參數,包括儲層厚度分佈、孔隙度以及滲透率,並且成圖;利用變差函數法,通過球狀函數模擬,確定儲層優勢滲透率方向:根據流動單元法,以儲能系數、容積系數以及凈毛厚度比三個參數為依據,通過聚類分析方法進行流動單元劃分,並且按照參數特徵將其分為五類,統計各砂層有利流動單元區塊。2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure
龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重,減少土壤砂粒含量,增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比,以及增加粉粒含量,從而降低土壤分散度,提高土壤團聚性,增加土壤團粒結構數量,改善土壤的透水性,促進良好土壤結構的形成,最終提高土壤的蓄水保肥性能,增強土壤的抗蝕性和抗沖性。In the hillslope, d ( ), c ( ) and k ( ) of soil water have high spatial correlation. d ( ), c ( ) and k ( ) are significant affected by soil water content, capillary pore and sand content bulk density and non - capillary pore aperture are significantly affected on permeability rate. correlation analysis indicates that it is significant correlate
在坡面上,含水量、毛管孔除和砂粒含量對土壤水的擴散率、比水容量和導水率的影響較大;容重和非毛管孔隙對滲透率的影響較大,相關性檢驗達顯著和極顯著水平。In this paper, on the foundation of synthesizing engineering practice and study result of planted bar technique by chemistry glue on the domestic and international, embedded experiment study and theories analysis are done about bonded anchor behavior of chemistry planted bar anchorage behavior in this paper, the experimental results of 32 pulling resistance test ( meiya z3530 ) are given, considering some factors to affect bonded anchor behavior of chemistry planted bar such as the strength of concrete anchorage lengths diameter of steel bar and holes thickness of the protecting layer confecting circumstance of the hoop bar and quantity of construction especially which is very easy to be neglected and so on, and bonded anchor mechanism failure mode load carrying capacity and slide behavior are analyzed in - depth
本文在綜合國內外化學膠植筋技術的工程實踐和研究成果的基礎上,對化學植筋的粘結錨固性能作了較深入的試驗研究和理論分析。文中通過32個化學膠(美亞z3530 )植筋試件的拉拔試驗研究,考慮混凝土強度、錨固長度、鋼筋植筋、鉆孔孔徑、保護層厚度、箍筋配製情況及施工質量等因素對植筋粘結性能的影響,特別是植筋的施工質量對粘結性能的影響是比較容易被忽視的因素,對化學植筋的粘結錨固機理、破壞形態、承載力及滑移性能作了比較深入的剖析。Determination of pore volume distribution and specific surface area of solids by mercury intrusion
用汞注入法測定固體的比表面積和氣孔容積分佈The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus
通過對水泥?水玻璃加固土的無側限抗壓強度試驗,以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗,得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系,即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加,水泥?水玻璃加固土的抗壓強度相應地降低;而隨著原狀土的容重、壓縮模量的增加,水泥土的抗壓強度也隨之增加。A flap vlave used in pumping station is a kind of hydraulic - operated automatic gate, which is similar to a hinged check vaive. because of their simple structure and reliability, being able to shorten the length of outlet passage and facilitate the starting of pumping system in comparison with siphonic vacuum - distroied cutoff scheme. so it is propitious to be used and save investment but at the same time, flap valves always show some disadvantage
因拍門簡單、可靠,與虹吸真空破壞截流閉鎖方式相比,可以縮短出水管道(流道)長度,並利於泵系統起動,與快速閘門相比,拍門也有諸多優點,閘門門體易關閉不到位或卡住不能活動,因為門槽和?塊較軸孔容易殘留異物,閘門門體克服滑動阻力不僅無機械增益,且阻力和動力不在一直線上,門體易傾斜而自鎖,而拍門的工作可靠性則遠高於快速閘門。And the value drop to the lowest at ph = 0. 8. as the increase of heat treatment temperature, the pore size distribution peak of sio2 microspheres is very narrow, meanwhile the specific surface area is the smallest before 160 c. the polymer template is removed at 350 c, so the pore structure of sio2 particles has a big change which involve the increase of specific surface area and the broaden of pore size distribution peak. with the continuous raise of temperature the sio2 network will shrink little, as a result the average pore size will decrease, but the specific surface area has no obvious change
結果發現:二氧化硅膠體顆粒均勻分佈於脲醛聚合物網路中,煅燒去除有機模板后微球表面變粗糙,而粒徑沒有明顯變化; ph值較小時,復合微球中聚合物含量較大,而ph值較大時,得到復合微球結構鬆散,因此熱處理后的二氧化硅微球孔容及平均孔徑都較大,而在ph = 0 . 8時,得到最小值;武漢理工大學碩士學位論文隨著熱處理溫度的變化,小於160時,空分佈較窄,而比表面積較小,在350時,由於有機模板的去除,微球孔結構發生突變,比表面積明顯增大,而孔徑分佈變寬,溫度繼續升高時,二氧化硅網路發生收縮,平均孔徑變小而比表面積由於有機炭化物的完全去除沒有太大變化;微球中的微孔在熱處理過程中處于平衡狀態,分佈沒有太大變化。And the amount of iodine adsorption of ac is greatly influenced by its pore distribution, specific surface area and pore volume
活性炭的孔徑分佈、比表面積和孔容對其碘吸附值有較大的影響。To activate carbon products, with the reaction pressure increasing, bulk density lowered, iodine number and methylene blue adsorption increased, specific surface area and pore volume increased and more micropores were formed
隨著反應壓力的提高,活性炭產品的堆比重降低,碘和亞甲藍吸附值提高,比表面積和孔容提高,形成更多的微孔結構。Coplanar waveguides ( cpw ' s ) offer several advantages over conventional microstrips, these include the simplification of the circuit fabrication process, ease of parallel and series insertion of both active and passive components ( without the need for via holes ), and high circuit density. therefore cpw ' s are widely used in microwave and millimeter - wave integrated circuits, optical and high temperature superconductor microwave devices
與常規的微帶傳輸線相比,共面波導具有容易製作,容易實現無源、有源器件在微波電路中的串聯和並聯(不需要在基片上穿孔) ,容易提高電路密度等優點,因此共面波導被廣泛應用於微波、毫米波、光學和高溫超導等集成電路中。With the increasing pyrolysis temperature, the specific surface area as well as micropore surface area and total volume increased accompanied with the narrower pore size distribution
隨熱解溫度的升高,氣凝膠的比表面積、微孔表面積相應增加,孔徑分佈變窄,孔尺寸縮小,總孔容增大。This paper consists of the following parts : firstly, the physical properties ( particle size distribution, specific area, porosity ratio and pore volume ) and pyrolysis characteristics have been studied in experiments with four kinds of coals. according to experimental results, the advantages of combustion characteristics of micro - pulverized caols are analysed on the theory. secondly, the reconstructing plan is designed in details for a conventional system of the hot air transferring pulverized coal to reduce nox emission
本文主要包括以下內容:首先,通過基礎的實驗分別對四種具有代表性煤種一、三次風所含煤粉的物理特性(粒徑分佈、孔隙率、孔容積和比表面積)和熱解特性進行研究,從理論上分析煤粉細化后,較細顆粒(即三次風含粉)在燃燒特性上的優越性,為三次風含粉用於再燃燃燒打下基礎。Since the novel m41s mesoporous materials ( particularly mcm - 41 ) was firstly reported by mobil ' s researchers, much attention has been paid to this kind of materials. they have not only larger surface area, uniform pore structure and huge pore volume, which can reduce bottleneck phenomenon in molecular diffusion, but also higher mechanically and chemically stability as new inorganic materials. these materials have been widely used as catalysts, sorbents and separation materials as they were synthesized firstly
介孔材料作為一種新型功能材料,由於其具有較大的比表面積、長程有序的孔道結構、較大的孔容、良好的擴散性能和能夠減小分子擴散中的瓶頸效應等特點,以及作為無機材料所具有的機械和熱穩定性,所以自1992年mobil公司開發研製了以mcm - 41為代表的m41s系列介孔材料以來,被廣泛應用於催化、吸附和分離等領域。It provides performance advantages over the conventional perforator with the same diameter and similar charges, its penetration depth is increased by 7 % and entrance hole volume by 10 %
由於採用了復式射孔槍和復式射孔彈結構,使射孔彈和火藥能量得到充分利用,與一般的槍徑及彈型的射孔器比較,其穿孔深度提高7 %以上,孔容提高10 %以上。分享友人