纖維孔體積 的英文怎麼說
中文拼音 [xiānwéikǒngtǐjī]
纖維孔體積
英文
internal volume in fiber-
There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
實驗研究的兩種菊科（ compositae ）植物（準噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum （ schrenk ） poljak . ） ） ，形態解剖方面的變化表現為：隨日齡增加，根長/株高比值日益增大；根系逐漸發達；體積與葉面積比逐漸增大；表皮細胞體積變小；角質層增厚；根外部出現加厚的木栓層；氣孔下陷；葉、莖部的表皮毛密布，柵欄組織日益發達；而細胞間隙日漸變小；海綿組織逐漸消失；葉面結構常為典型旱生結構? ?等葉面；晶細胞及纖維細胞數目增多；輸導組織、機械組織日漸發達；具有維管束鞘等等。The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc
在分析各國ogfc級配的基礎上，運用礦料體積法進行ogfc級配設計，用正交實驗對礦料級配進行了優化設計，運用數理統計方法分析礦料級配和孔隙率之間的關系，並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程，進而提出了ogfc的合理級配；通過對不同孔隙率典型級配混合料的性能研究，綜合力學和功能性能，得出了ogfc的合理孔隙率范圍：針對高速公路面層對ogfc力學性能方面的要求，本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善：通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青，摻加聚合物纖維，提高ogfc的最佳瀝青用量，進而改善了混合料的高溫性能和抗水損害性能，優化設計出能滿足高速公路路用性能，車轍動穩定度達5000次/ mm以上，動融劈裂強度比90 ，透水系數31ml / s ，並具有防滑降噪功能的開級配瀝青磨耗層（ ogfc ）混合料。3d - c / sic fabricated with t300 carbon fibers weaved into 3 - dimensional and 4 - directional structure, was deposited pyrocarbon and sic matrix at 950 - 1000 with cvi method. fiber volume fraction of 3d - c / sic was 40 - 45 %, composite density was 2. 01g / cm3 and porosity was 17 %. in addition, the thickness of pyrocarbon interface was 200 nm for interaction fatigue - creep ; the interface layer of pyrocarbon for thermal shock had three thickness obtained by controlling deposition time which were 10h, 20h, 30h, respectively
3d - c sic是用t300碳纖維編織成三維四向編織體， cvi法在950 - 1000緻密，纖維體積分數為40 - 45 ，密度為2 . 01g cm ~ 3和孔隙率為17 ，用於疲勞蠕變交互作用試驗熱解碳界面層厚度約0 . 2 m ；用於熱震試驗的有三種界面層厚度分別是熱解碳沉積時間10小時、 20小時、 30小時獲得。The experiment showed that the temperatures and the fiber proportions influenced great on the compressive strength, bending strength, volume density and the porosity of the composites
實驗結果表明，燒成溫度和纖維含量對復合材料的耐壓強度、抗折強度、體積密度和氣孔率影響較大。In the boron medium of ph = 4. 5, the complex of mo ( vi ) - ars - cpc, can be collected on nitrocellulose membrane. the complex and the filter are dissolved in a small volume of dmso, and the absorbance of the resulting solution is measured by means of spectrophotometric method at 490 nm wavelength against the reagent blank. the detection limits better than 1. 2ug / l can be achieved
5的hac寸aac緩沖溶液中， mo （ vi ）與酋素紅s （ ars ）以及澳代十六烷基毗陡（ cpc ）形成的三元絡合物能夠被硝化纖維微孔濾膜定量富集，富集膜溶解在小體積的二甲亞礬中，於490run處以試劑空白為參比測定吸光度。We tested the ambient temperature compressive strength, the ambient temperature bending strength, volume density and the porosity of the sintered composites. by means of the om, sem, and x - ray, we analyzed the composites micro - structure ; we studied the dispersion methods & the mechanism of damage of the fiber ; we also did research on the reinforced mechanism and the fabrication characteristics of the fcmc
測試燒后試樣的常溫耐壓強度、常溫抗折強度、體積密度、氣孔率，並藉助于光學顯微鏡、掃描電鏡以及x射線衍射圖象對復合材料微觀結構進行了分析，探討了復合材料中纖維的分散方法、纖維的損傷機理、纖維增強al _ 2o _ 3復合材料的增強機理和及制備特性。Regarding the lcm filling process as the newton fluid through fibrous reinforcements, the permeability of preform determines the saturating of resin in fiber, and has effects on the curing process and the quality of products. based on the darcy ' s law, the theoretical model of permeability measurement was established. and the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details
文中首先根據達西定律建立了滲透率測量的理論模型，深入研究了不同的測試方法及主要工藝參數（纖維織物織構、纖維體積含量、充模壓力、流動速度、樹脂粘度）對滲透特性的影響規律，發現多孔介質增強材料的滲透率主要取決于纖維織物的結構形式，預成型體孔隙分佈及其體積分數、壓實性對滲透率有較大的影響，提高充模壓力和流動速度可以縮短充模時間，在一定程度上可以提高滲透率。The distortion of in - plane fibers is considered to be the main reason for the effect of stitching on the in - plane mechanical properties, and the fiber distortion region, the resin - rich pocket and the through - thickness reinforcement section are taken into account. the fiber misalignment angle and the inhomogeneous fiber volume fraction caused by stitching have been determined within the lamina. the elastic constants of a lamina are calculated using a micromechanical model, then the constitutive equations of the stitched composite laminates can be composed
從縫紉孔附近纖維變形的細觀結構出發，建立的纖維彎曲模型，以面內纖維的彎曲變形作為縫紉影響層合板面內力學性能的主要原因，同時考慮了纖維變形區、厚度增強區以及樹脂富集區的影響，得到單向板內任意一點處的纖維偏轉角和纖維體積百分含量。At the same sintering temperature, when the alumina fiber accounted for 10 %, the porosity of the composites was the lowest, the volume density was the biggest, and the compressive strength and the bending strength were the highest. when the sintering temperature was 1550 c, the compressive strength which could reach 332. 78 mpa, was the biggest ; when the sintering temperature was 1550 c, the bending strength which could reach 44. 04 mpa, was the biggest
在同一燒成溫度下，氧化鋁纖維含量為10時，復合材料的氣孔率最低，體積密度最大，耐壓強度和抗折強度最高；燒成溫度在1550時，復合材料的耐壓強度最高，達到332 . 78mpa ，在1500時，復合材料的抗折強度最高，達到44 . 04mpa 。分享友人