permeability of heat 中文意思是什麼

permeability of heat 解釋
透熱性
  • permeability : n. 1. 透過性，可透性，滲透性；滲蝕度；【航空】（氣球氣體的）透出量。2. 【物理學】磁導率，磁導系數（＝magnetic permeability）。
  • of : OF ＝Old French 古法語。
  • heat : n 1 熱；熱力；熱度；熱量。2 體溫；發燒。3 （氣候的）高溫，暑氣。4 【冶金】熔煉的爐次；裝爐量；一...
  1. 6. through numerical simulations, effects of the adsorbent bed configuration, thermal conductivity and permeability of the adsorbent are analyzed. some technologies of heat transfer intensification are revalued

    通過吸附床內傳熱傳質的數值模擬，分析了吸附床結構、吸附劑的傳熱系數和透過度對系統性能的影響，一些有關吸附床的強化傳熱技術被重新評價。
  2. 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。
  3. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  4. Ploughing deeper and corn residues might promote formation of soil aggregated structure, decrease soil bulk density, relax solum, decrease soil porosity, raise soil permeability, improve soil structure and holding - water capability, create better soil biology condition for growth of crop, and coordinate water, fertilizer, air and heat etc. to prevent the fertility deterioration of the corn belt phaeozem and ameliorate soil, it is need to reform tillage and fertilizer application for the corn belt phaeozem in the central part of jilin

    針對吉林玉米帶黑土土壤退化現象，從黑土玉米的耕作制和施肥制的改革入手，並結合農村現有機械和技術水平，採用玉米「輕主重輔」三三耕作制和玉米「一穩二減三補」施肥技術，提出吉林玉米帶黑土土壤調控技術體系。
  5. A lot of results are made from calculating of case for geothermal reservoir property of earth energy within 200 2000 ( m. ) ， it is helpful to analysis influence of permeability coefficient, kinematic viscosity and thermal diffusion coefficient of soils and rocks on heat transfer performance

    在地表熱能熱儲物性為200 - 2000 （ m . ）的范圍內進行的理論計算，得到了許多重要結果，為分析巖土層滲透系數、流體運動粘度和導溫系數等對傳熱量的影響打下了良好基礎。
  6. The dry temperature of the metal membrane rangs from 50 c to 60 c, dry time of metal membrane is 10 minutes ; the rate of heat - up is 5 v / 30mins ; the pore size and permeability of metal membrane reduce with the sintered temperature of metal membrane rising. when sintered temperature is over 1000, the influence of sintered temperature to pore size is small

    在刷塗工藝條件下，用hdh鈦粉制備的多孔金屬膜的乾燥溫度為50 ? 60 ，乾燥時間為10分鐘；升溫以5v / 30min進行；多孔金屬膜的孔徑隨著燒結溫度的升高而降低，當燒結溫度在1000以上時燒結溫度對孔徑的影響較小。
  7. Each pearl padding is made up by scores of composite hree - dimensional, helix, hollow and silicon - filled fibers and specially processed into individual balls with better elasticity and permeability and longer endurance ; with a little stiffness to meet the special requirements of some products ; similar to pearl in shape ; soft and puffy, slippery hand - feeling, good heat preservation and more comfortable ; can be mixed with down and the ideal substitute for it

    每粒珍珠棉，是由幾十根復合三維螺旋捲曲中空加硅纖維，經特殊工藝加工製成小球狀，彈性更好，透氣更強，使用時間更長，並且稍稍有點硬度，可以滿足某些產品的特殊要求；形似珍珠，柔軟蓬鬆，手感滑爽，保暖舒適，可與羽絨混合，是羽絨製品的理想替代材料。
  8. In this paper, we have a dynamic model of coupled heat and mass transportation and chemical interaction, by using the dynamic model of heat and mass transportation, chemical interaction in porous media, and the porosity and permeability models on a spherical close pack arrangement of grains

    這里利用熱質流體輸運動力學模型與石英溶解與沉澱的化學動力學模型，以及多孔介質的本構關系，建立了一個熱質輸運、反應動力學藕合模型。
  9. Durability ' s of the material such as permeability, heat - resistance, carbonation and steel bar - protection were tested. the bonding characters between anchoring material matrix and post - embedding steel bar, the matrix and the concrete structures were studied

    在植筋錨固長度足夠的條件下，混凝土與錨固砂漿的界面粘結強度大小直接決定了植筋錨固的控制荷載，粘結界面成為受力的薄弱環節。
  10. This paper used the reactive powder concrete ( rpc ) as the inorganic anchoring material, and studied this material ’ s compositions and the materials mechanics properties ( mainly includes compressive strength, shearing strength, elasticity coefficient and poisson ' s ratio ), and also studied the contraction, durability ( including the rpc permeability, chemistry corrosiveness and anti - frozen performance ) and the heat - resistance of rpc

    本文採用活性粉末混凝土（ rpc ）為無機錨固材料，並對該材料的配合比，材料力學性能（主要包括抗壓強度，抗剪強度，彈性模量和泊松比）進行研究，還分析了rpc的收縮性、耐久性能（包括rpc的滲透性、化學侵蝕性和抗凍性能）和耐高溫性能。
  11. The permeability of the skin of a building towards light, heat and air, and its transparency must be controllable and capable of modification, so that it can react to changing local climatic conditions ( solar screening, protection against glare, light deflection, shading, temporary thermal protection, adjustable natural ventilation )

    建築表皮對于光，熱和空氣的可滲透性，和它的透明度必須可以控制並且能夠得到調整，因此它能夠作出反應改變局部氣候條件（太陽遮擋，防護太陽發出的眩光，光的偏斜，留下的陰影，暫時熱保護，可調整的自然通風）
  12. Combined with the permeability and heat transfer properties of lamilloy configurations obtained by experiments, a one - dimensional porous wall thermal heat transfer model was applied to the analysis of the mass flow rate, and the overall cooling effectiveness of different lamilloys according to the pressure drop between the two sides

    摘要基於一維多孔材料內傳熱理論，建立層板冷卻的理論模型，應用由實驗獲得的各種層板結構的流阻和換熱特性，由層板兩側的壓差估算通過層板的冷氣流量和層板結構的冷卻有效性。
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