超壓縮性 的英文怎麼說
中文拼音 [chāoyāsuōxìng]
超壓縮性
英文
supercompressibility-
The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed
研究表明,採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料,軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數;試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著;超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比,斷裂強度和延伸率均有一定程度的增強;超細晶ly12的熱膨脹系數在550左右發生明顯的變化。Great difference in pressure for two flow made pressure wave system and it help to extend the delay time for gas in chamber, which increases combustion effusion. second, to increase combustion effusion, the inlet temperature of air and gas should be enhanced in the range of heat releasing in chemical reaction. third, the first work condition is unburned absolutely and the second work condition is burnt in shear layer of inlet and the end of down wall zone in straight segment
對于壓力差很大的兩股氣流,所形成的壓縮波系的結構可以增加燃氣駐留時間,提高燃燒穩定性;為了提高擴散燃燒的效率,在保證能放熱的化學反應溫度范圍之內,應適當提高燃氣及空氣的來流入口溫度;燃氣噴嘴應居於燃燒室軸線上,是改進超音速燃燒室結構的一種思路。The experimental result of superplastic compression indicates that strain rate has intensive effect on flow stress of ti - 1023 alloy and the effect of temperature is related with strain rate
超塑性壓縮實驗結果表明,應變速率對ti - 1023合金流動應力具有強烈的影響,溫度對流動應力的影響程度與應變速率大小有關。Sometimes, some silty soil, super soft soil, because of its high compressibility, low strength, high water component, high dexterousity, has notable rheological behavior
往往某些淤泥質土、超軟粘土,其壓縮性高、強度低、含水量高、靈敏度高,具有較顯著的流變特性。In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料,通過超塑性拉伸和超塑性壓縮試驗,對ti - 1023合金的超塑性進行系統研究,研究坯料細晶組織制備方法,優化超塑成形工藝參數,為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。Finally, two examples show that, the availability and practicability of the new model is verified. the analysis of calculation result of berthiervill test embackment shows different part of compression curve have different influence upon the course of consolidation, and correct coefficient and viscous effect have great significance on deformation forecast. associated with the wenzhou airport runway engineering, the reason of increasing of pore - water pressuer in under - lying soft layer and post - construction settlement are given
最後,通過兩個工程實例的分析來說明本文模型的有效性和實用性:一是對berthiervill填土試驗場的軟基實測數據和理論成果進行對比分析,闡明考慮結構性擾動和粘滯性效應對分析天然粘土固結壓縮性的重要性;二是對溫州機場袋裝砂井超載預壓工程進行數值模擬,指出停荷預壓期間下臥層孔壓增加和工后沉降大的原因。The deformation behaviors and evolution behaviors of the microstructure for the new 7055 aluminum alloy at high temperatures have been investigated by isothermal compression testing method with gleeble - 1500 thermal simulator
本文利用gleeble - 1500熱力模擬試驗機,採用高溫等溫壓縮試驗方法,對7055新型超硬鋁合金的高溫塑性變形流變應力行為及組織演變行為進行了研究。In the present dissertation, five commercial metallic materials ? tungsten alloy ( 93w ), oxygen free copper ( ofc ), titanium alloy ( tc - t ), pure aluminum ( al ) and magnesium alloy ( mb2 ) were chosen as the composite system of the flier - plate with graded wave impedance, and their acoustic and mechanical parameters were measured. the thickness of each material was controlled so that flier - plates with a parabolic or cubic wave impedance distribution were designed
依據實現準等熵壓縮和超高速發射對梯度飛片體系的理論要求,論文首先在一個較寬的波阻抗變化范圍內,確定鎢合金( 93w ) 、無氧銅( ofc ) 、鈦合金( tc _ 4 ) 、工業純鋁( al )和鎂合金( mb _ 2 )五種綜合性能良好的金屬和合金材料作為波阻抗梯度飛片的復合體系,並測量了材料的相關聲學和力學參量。Flier - plate with graded wave impedance, which can be regarded as a new type of functionally graded material ( fgm ) since its wave impedance changes gradually along the thickness direction and thus can be used to generate quasi - isentropic compression energy waves in targets or drive projectiles to hypervelocities, has come to show great potential for the application in dynamic high - pressure technique
波阻抗梯度飛片作為一類新型的功能梯度材料( fgm ) ,因其波阻抗值沿厚度方向呈梯度變化而具有準等熵壓縮特性並能進一步用於超高速發射中,可以看作是fgm的優異特性在動高壓物理領域中的應用新拓展。The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡( nolm )相結合的方案來對信號脈沖進行壓縮整形,模擬顯示,在調節系統合適參數的情況下,波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時,最後可以得到放大的高質量超簡訊號光脈沖;在基於soa的交叉增益調制( xgm )全光波長轉換中,採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低,波長向下轉換的距離和反轉光的峰值能量都得到明顯提高,降低了利用交叉增益調制( xgm )波長轉換中對波長精度的要求,從而提高了波長轉換的靈和性。The study shows that besides boundary conditions, the factors influencing the nonlinear consolidation behavior of soils are the compression index cc, the permeability index ck, the level and the rate of loading, and the thickness of soil, etc. in nonlinear consolidation, especially for layered soils, the average consolidation degree defined by settlement, us is greater than the one defined by effective stress, up, i. e., the rate of the development of settlement is greater than that of the dissipation of excess pore water pressure
研究表明,除邊界條件外,影響軟土地基一維非線性固結性狀的主要因素是壓縮指數c _ c 、滲透指數c _ k 、荷載大小與加荷速率、土層厚度等。對于非線性固結,特別是成層地基,按沉降定義的平均固結度u _ s大於按有效應力定義的平均固結度u _ p ,即沉降發展速率要快于超靜孔壓消散的速率。Commonly, ultrasound elastography can only obtain the axial strain distribution of tissues with an external compression
摘要超聲彈性成像通常只能得到組織在外部壓縮作用下的縱向應變分佈。For compressible fluids, where pressure drop exceeds half the inlet pressure
對于可壓縮性流體,如果壓降超過進口壓力的一半。As to still image coding, even though the performance of wavelet image coding algorithms excel first generation image compression standard jpeg, but they will produce boring mosquito noise at low bit - rates, which are mainly located around image edges. besides that, their coding efficiency will drop rapidly for those natural images with rich textures
而在靜態圖像編碼方面,雖然小波圖像演算法的編碼性能遠遠超過第一代圖像壓縮標準jpeg ,但它在低位率條件下也會出現蚊式噪音,主要集中在圖像邊緣附近,而且對于包含豐富紋理的自然圖像,其編碼效率也會急劇下降。Radially symmetric deformation of a class of compressible hyper - elastic spherical shells
一類可壓縮的超彈性球殼的徑向對稱變形The calculation of the position of the shocks for the domain decomposition of the hyperbolic approximation is discussed. it is the matching stable problem for the different schemes in the different domains with different mesh size. after tracing the position of the shocks, the artificial compression method are applied to eliminate the smearing effect and to raise the resolution of the schemes. in the boundaries of each regions, the universal connected matching stable schemes are inserted in so as to make the schemes between different regions matching stable each other. at last, some numerical examples are presented
討論在激波計算中的區域分解法,即在不同區域中應用不同網格及格式的耦合穩定性問題.先定出激波位置,再在激波附近小范圍內,用低階格式及人工壓縮方法以消除彌散效應.在激波區域外,應用高精度格式,減少了過超振蕩現象,提高了解析度.在各區域交界應用全能穩定聯接格式,解決了格式的耦合穩定問題.最後舉出數值計算實例,計算結果與理論分析符合Method for evaluation of compressive properties of metallic superplastic materials
金屬超塑材料壓縮性能的評價方法Combining the simplified momentum equation, energy equation and state equation of compressible sticky fluid, this paper establishes the numerical model to study the heat - transfer property of the substances in super - critical waterwall tubes with the newest international water and steam standard - iapws - 97
本文採用最新的國際水與水蒸汽標準iapws - 97 ,通過聯立求解簡化的可壓縮黏性流體的動量方程、能量方程和水與水蒸汽的狀態方程,建立數值模型研究超臨界水冷壁管內工質的傳熱特性。The results showed that the properties and production mst of the panel could be designed by adjusting the compression ratio of the mat ; the properties of bamboobased waferboard with 1. 07 compression ratio and 4 % pf resin without any moisture - resistant agent were superior to those of wood - based one ; and the composite with excellent properties could be made with bamboo from species either for structure or for shoot, and from single species or mixed species as long as the wall thickness of bamboo was over 2 mm
試驗結果表明,通過調節壓縮比即可調節板材的性能和生產成本,壓縮比為1 . 0 、用膠量為4的不含防水劑的酚醛樹脂竹大片刨花板的各項性能可超過同類木質板材的性能單獨或混合以具必要竹壁厚度的材用或筍材兩用竹為原料均可獲得性能良好的竹大片刨花板。Based on it, the performances of all kinds of supersonic ejectors are compared and the effects of variety of input parameters on the performances of supersonic ejectors are discussed. the conclusion is reached, that the design scheme of small ejecting coefficient, high ejecting mach - number, combustion - gas driving should be adopted to develop high performance, high compression - ratio prs. thirdly, the method of computational fluid dynamics is used to numerically solve the flow - field of the annular supersonic ejector with or without a second flow
接著,推導了超聲速引射器各種一維理論模型,並應用一維理論公式分析、比較了各種超聲速引射器的性能及其變化規律,全面探討了各設計參數對超聲速引射器性能的影響,得到了高性能、大壓縮比引射器系統應該採用小引射系數、高引射馬赫數、燃氣引射、優化超聲速引射器設計方案的結論。分享友人