critical intensity 中文意思是什麼
critical intensity
解釋
臨界強度-
It is found that, under large cross - correlation intensity, a succussive switch process ( i. e. " on " " off " " on ", which we call reentrance transition or twice switch ) is occurred with the increasing of noise intensities, and there exists a critical noise intensity at which the mfpt of the switch process is the largest
此時的mfpt隨著這些波動的強度的變化也不再是單調的，而是出現了一個極大值。由於這個極大值的出現，使得隨著波動性的增強會出現一個「雙開關」現象：基因的狀態由「開」到「關」 ，然後又回到「開」 。 -
Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing
文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的，因而是一個物理的關系式，故適用於圓柱坐標中各類波動方程的定解問題.作為一個例，應用於光纖光學，導出了受導簡正模和輻射模的表達式，以及各模式的強度分佈 -
Critical moisture is to point to exceed certain limit when water content, the respiration intensity of commissariat rises significantly namely, form an obvious turning point, the moisture of turning point calls critical moisture
臨界水分是指當含水量超過一定限度，糧食的呼吸強度即顯著提高，形成一個明顯的轉折點，轉折點的水分稱為臨界水分。 -
Analyses the smoke characteristics in the development of fire and obtains its changing curves. according to different fire loads, studies the changing relation between the critical velocity and fire intensity
摘要分析了地鐵火災煙氣特性隨火災發展過程的變化情況，得到了煙氣特性變化曲線。針對不同的火災荷載，研究了臨界風速隨火災強度的變化關系。 -
The control of beam halo - chaos becomes a critical problem in the development of high intensity accelerator. efforts to remove the halo by collimation have been largely unsuccessful since the halos almost always regenerate. the mechanisms of halos are complex, such as nonlinear resonances and chaotic behavior etc. considering this, professor fang jin - qing who works in china institute of atomic energy pointed out that the theory of chaos control can be used to control beam halos. he presented the method to control halos by using nonlinear functions, which means nonlinear function g is added to the right of ion radial self - edlctric force equation and some nonlinear function are selected to control beam halos in simulations. in paper [ 69 ], controllerg = - 0. 15sin ( rmax - am ) 2 was used and the halo intensity was decreased to 0. 1078, the halos are removed partly
束暈?混沌的控制是新一代強流加速器研製的關鍵問題，隨著強流離子束應用前景的日趨廣闊而日益成為研究的熱點。傳統機械限束器因無法解決束暈的再生而收效甚微，因為束暈的形成有著其內在動力學機制?非線性共振以及混沌等。基於此，中國原子能科學院研究員方錦清將混沌控制的理論和方法開創性的運用於束暈?混沌的控制上，提出了控制束暈?混沌的非線性控制策略，即在粒子徑向所受束自生場力方程的右邊加上非線性控制函數g ：並選取一些非線性函數如等進行了控制的模擬研究，將束暈強度控制在0 . 1078左右，取得了初步的控制效果。 -
The piston is the critical part of engine. it stands the great thermal load ; the thermal load and thermal intensity have greatly affected the durability, reliability and economy
對于活塞這樣承受很大熱負荷的發動機關鍵零件，其熱負荷和熱強度問題是影響發動機耐久性、可靠性和經濟性的關鍵問題。 -
The discuss starts from the " positive externalities " of tech - research and development, pointing out that the products of tech - research and development somewhat has the property of " public good ". without < wp = 8 > government ' s interfere, the intensity of tech - research and development by private section ca n ' t meet the need of " pareto optism " because of the " positive externalities ", as a result, the items of venture capital are insufficient and the development of venture captal will be pull back. rational policies of government expediture can internalize the " positive externalities " - transforming them to more revenue or less cost of the tech - research and development private suppliers. be feared of the high risk at the beginning of venture capital, the private section ca n ' t provide enough capital, the " capital gap " should be fetched up by government with equity capital, creditor ' s right capital, subcidy, at the same time, some other means, such as government purchase, credit guarantee, capital insurance, tax expenditure can promte private capital, is also important. in this part, the function of the above means, the establishment and enforcment of them are breafly discussed. because tax policies play a critical role in fiscal policy, r - y chart is used to analyse the relation between tax and venture capital, at last, a conclution is drawn : tax expenditure can promote venture capital
這部分論述從科技研發成果的「外溢性」入手，指出科技研發成果在不同程度上具有「公共品」性質，這種外溢性使得在純市場條件下，私人部門研發活動強度達不到社會資源配置最優的要求，也使風險投資項目來源不足， < wp = 6 >阻礙風險投資的發展。合理的政府財政支出政策可以使「外溢性」內部化。之後，論述了風險投資資本來源與政府財政支出政策的關系，由於風險投資尤其是其初期的高風險性，民間風險資本不足，應由政府以股權及債權投資、補助等財政直接支出方式彌補資本缺口，運用政府采購、財政擔保、保險、貼息、稅收優惠等間接支出方式，鼓勵民間資本進入風險投資領域也同樣重要。 -
When the charge deposited in the sv exceed critical charge qc, seu occurs. in order to decrease intensity of beams, heavy ions generated by tandem accelerator, bombards an au foil
我們用hi - 13串列加速器提供的重離子輻照航天微電子器件，為了降低離子束的強度，用重離子從au靶上的二次散射離子作為輻照源。 -
This paper try to mix the finite strip method and hybrid stress element, and deduce a numerical and computer method which combines the advantages of the two methods - mixed hybrid finite strip method ; analyze the intensity and stability of the orthotropic plate by this method ; deduce the formula of the orthotropic plate ' s analysis and calculation under this method ; compile the program of orthotropic plate ' s mixed hybrid finite strip method ( hfsop. for ) with fortran - 77 language, and perform them under fortran90 environment of pc computer ; comparing with traditional methods by example of computing, prove that the mixed hybrid finite strip method have better degree of accuracy, moderating the stiffness of plate, coming more close to actual conditions, avoiding over - hard or over - soft ; finally, this paper analyze the stability of a orthotropic plate by this method, and deduce the - value of critical stress
論文將有限條法和應力雜交元法兩者結合起來，導出一種兼有兩者優點的數值計算方法? ?混合雜交有限條法。運用這種方法對正交異性板的強度和穩定進行了分析，推導出正交異性板在這種方法下的分析計算公式，用fortran - 77語言編寫正交異性板混合雜交有限條法程序（ hfsop . for ）在微機fortran90環境下運行。通過算例與傳統的方法比較，驗證混合雜交有限條法有更好的精度，使板的剛度適中，更接近實際情況，避免「過硬」或「過軟」 ；最後，論文還用此方法對一正交異性板進行了穩定分析，得出臨界應力值。 -
The consistency of the energy criterion and the stress intensity factor criterion to model i crack is discussed concisely, and the new method to calculate linear critical fracture stress is presented
藉助裂紋圓模型簡明地論述了型裂紋擴展的能量判據與應力強度因子判據的一致性以及線性斷裂臨界應力的新演算法。 -
However, the effect of rsf leads to the singularity of beam redius focused to zero with infinity laser intensity when the laser power is lager than a critical value in the absence of other effects. then, we anlyze the effect of higher order relativistic nonlinearity ( hor ) and find that this effect can arrest the singularity due to the effect of rsf
因此，研究了高階相對論性非線性效應對激光傳輸的影響，發現高階相對論性非線性效應能夠抑制這種奇異性的出現；並對高階相對論性非線性效應與非傍軸效應作了比較，發現高階相對論性非線性效應起主要作用。 -
The stability of the landslide is a critical problem for feasibility of the project, and has a direct influence upon the operation of the lower reservoir and the power system. the sliding mass has been studied by some designer in geological investigation. the study showed that guishan sliding mass is in stabilization under natural condition, is not in stabilization under vii earthquake intensity
在前期的研究中曾對滑坡體的穩定問題進行了研究，研究結果認為從宏觀定性分析，滑體處于穩定狀態，但經過計算，在度地震烈度下，處于極限平衡或不穩定狀態，為確保工程安全，對推動式的龜山滑坡體採取削坡減載的開挖方式將是行之有效的方案，這樣可以提高滑坡體在地震條件下的穩定性，因此，研究龜山滑坡體在不同開挖方式方案條件下的穩定性問題具有非常重要的實際意義。 -
An experimental investigation on the transition in the boundary layer of horizontal plane with and without single two - dimensional roughness elements has been carried out in the wind tunnel. the distribution in normal and stream - wise directions of intensity of t - s wave excited by vibrating beam was measured in every condition. neutral curves were obtained by measuring the growth of the t - s wave at the normal critical location along the stream - wise direction
在風洞中對水平光滑平板以及加有粗糙元平板的邊界層轉捩進行了測量與研究，比較了不同情況下平板邊界層內由振動梁激勵生成的t - s波沿流向和法向強度的分佈規律，得到了相應的振型增長曲線以及中性曲線。 -
Based on the theory of fracture mechanics, the relation between the critical stress intensity factors for v - notch kc and the plane strain crack toughness k10c and the brittle fracture criterion of the maximum circumferential stress for single and double stress singularity with the v - notch problems are proposed. experiments were carried out using two kinds of v - notched specimens made out of plexiglas to verify this brittle fracture criterion
本文基於斷裂力學原理，推導出了型切口的臨界應力強度因子k _ c與材料的平面應變斷裂韌度k _ （ 10c ）之間的關系，給出了平面單奇異性和雙奇異性型切口問題的最大周向應力脆性斷裂準則，並用有機玻璃板材加工了兩種型切口試樣，進行了實驗驗證。 -
Two different reinforcing methodologies are applied : modification of the overlay characteristics by adding chopped glass fibers to the hot mixture asphalt ( hma ) and reinforcing asphalt overlay with glass grids. theory of fracture mechanics ( fm ) is employed to determine crack growth rates for the suggested anti - cracking overlay systems. asphalt mixture designing tests, three point bending tests and fatigue crack propagation tests were carried out. the critical stress intensity factors kic are determined for plain and reinforced asphalt concrete. depending on the fatigue crack propagation, the crack growth rate is determined for each type of anti - cracking system and the cracking process is also analyzed. one of the significant points in this study is the attempt to give better understanding of the crack propagation for multilayer asphaltic overlay or what are suggested herein to be called composite structure anti - cracking overlay system. the results indicate that the reinforcing materials improve anti - cracking characteristics of the asphalt concrete. composite structure anti - cracking overlay gives a good solution for the reflective cracking phenomenon over old cracked pavements
利用2種不同的方法加筋瀝青罩面:在瀝青混合料中加入短切玻璃纖維改善瀝青混凝土的特性，採用玻璃格珊加筋瀝青混凝土.應用斷裂力學方法分析瀝青路面裂縫擴展機理.採用瀝青混合料設計試驗、三點彎曲試驗和疲勞裂縫擴展試驗，確定加筋瀝青混凝土的臨界應力強度因子kic ，測量每一種瀝青罩面抗裂系統的裂縫擴展速率.本研究的主要特點是提出復合型抗裂罩面系統，分析了多層加筋瀝青罩面裂縫擴展過程，推薦了若干瀝青路面抗裂系統.結果證明，加筋材料可以提高瀝青罩面的抗裂特性，復合型抗裂罩面系統能夠有效地阻止反射裂縫的擴展 -
Practical study about high critical current intensity in superconductor of y - ba - cu - o compound system
系超導體高臨界電流密度的實驗研究 -
Critical stress intensity
臨界應力強度 -
With this in minds, many researchers have proposed a variety of models for describing the nonlinear fracture of concrete for the past decades. amid them most take the critical stress intensity factor kic as the fracture toughness, a sign of ability to resist the crack extension
對此，在過去的幾十年裡，眾多研究人員提出了很多描述混凝土非線性斷裂的模型，而其中的大多數斷裂模型都以臨界應力強度因子k _ （ ic ）作為抵抗裂縫擴展阻力的斷裂韌度。 -
Then because the real operation temperature of the tube is the critical factor for predicting the tube lifetime, we heat some unused tubes in the lab. then we measuer the rigidity of them and find the relationship between the hardness and heat - intensity parameter
其次，由於管件的真實使用溫度是預測其壽命的關鍵因素，因此，本文通過對未用管材按照幾種不同的加熱規范在實驗室進行模擬加熱，測定其加熱后的硬度，找出顯微硬度與熱強參數的關系。
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