條件性不穩定 的英文怎麼說
中文拼音 [tiáojiànxìngbùwěndìng]
條件性不穩定
英文
conditional instability- 條 : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
- 件 : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 不 : 名詞[書面語] (剁物所用的木墩) a block of wood
- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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The above analysis shows some results as follows : generally the discontinuities including bedding planes are favor to the stability of slope, which means that most of the slopes will not suffer large sliding failure ; most of the high slopes situated in the interest area are stable. however there are some potential unstable wedges which can be identified based on the key block theory ; some suggestions for reinforcing high slope are presented based on the stability analysis and environmental friendly consideration
結果表明:該區邊坡巖體條件對邊坡整體穩定性有利;區內高陡邊坡以穩定及基本穩定為主,不穩定邊坡較少,但潛在局部不穩定塊體較多;依據邊坡的工程地質特徵及穩定性評價結果,對該區高陡邊坡的防治提出了建議。That is the reason that all over the countries have never stopped researching for mask jamming technology of radar. at present, the mask jamming source mainly comes from the thermal noise and zener avalanche noise of semiconductor devices. but the noise ’ s quality isn ’ t stabile because of the differences of semiconductor devices each other and the changes of exterior conditions
目前採用的遮蓋性干擾的噪聲源主要來自半導體器件本身的熱噪聲或齊納雪崩噪聲,但各器件本身的不一致性和外界條件變化等因素使噪聲輸出質量不穩定;同時由於此類信號不能再生,不利於科學研究。The dynamic change and the stability of the generalized cobweb models such as model one are studied, including setting up the models and giving the economic meanings ; dynamic analysis on model one and proving that the price array produced by model one wo n ' t emerge above the third cycle movement and chaos ; stability analysis on model one and obtaining six theorems about the stability of equilibrium price. chapter four, analysis on some specialized cobweb models. this is the second key part of the thesis
主要研究了對形如模型( )的一般化蛛網模型的動態分析與穩定性問題,主要包括三個方面工作:一是建立模型並給出經濟含義;二是對模型進行動態分析,證明了由模型( )所生成的價格系列在一定的條件下不會出現3以上周期運動和混沌現象;三是對模型進行穩定性分析,並得到模型( )關于均衡價格穩定的六個定理。In the present dissertation, some properties of sodium tellurite glasses, including density, chemical durability, stability against crystallization and fragility of glass forming liquid are studied. the melting, evaporation and solidification of sodium tellurite glasses in low gravity during drop shaft experiments are observed. except this, the phase - separation of lead borate glasses under different gravity condition is also studied
本文亞碲酸鈉玻璃作為研究對象,系統探索了亞碲酸鈉玻璃的熔化條件,化學穩定性,玻璃抗析晶能力以及玻璃形成液體的脆性等問題,著重研究了na _ 2o - teo _ 2玻璃在落塔實驗中的熔化和氣化以及pbo - b _ 2o _ 3玻璃在落塔實驗中的分相,為解釋玻璃在不同重力條件下的熔化和分相等現象提供了理論依據。This paper is concerned with, the existence and stability of travelling wave solutions for the viscous balance law which is an extension of viscous conservation law where a reaction term g ( u ) is added. l ) the existence of travelling wave solutions by geometric singular perturbation method, we investigate the existence of travelling waves ( a2 ) connecting a saddle point and a sink point and the existence of viscous shock waves c connecting two adjacent or disadjacent saddle points. by giving a detailed analysis of the fast and slow manifolds and verifying the transversality of the intersection of singular stable and unstable manifolds of the reduced problem along the singular heteroclinic orbit, we obtain the existence of travelling waves ( a2 ) in the case of a convex flow function / and that of viscous shock waves c under the assumption that f " is bounded
主要結果如下: 1 )行波的存在性本文利用[ 37 ]中幾何奇異攝動理論,通過仔細分析= 0時的快流、慢流,驗證= 0時慢流方程的穩定與不穩定流形橫截相交於奇異異宿軌道,先在f為凸的條件下嚴格證明了( )存在連接不相鄰的鞍點、結點的行波( a2 ) ;然後在地f有界的條件下得到( )存在連接鞍點(包括相鄰和不相鄰)的粘性沖擊波c ,彌補了[ 11 ]缺少嚴格證明的不足,並推廣了[ 11 ]在f為凸的條件下得到的粘性沖擊波的存在性結果。Abstract : the gpc or crhpc strategy with input constraints will be possible to lead to infeasibility of the control algorithm and the performance of the control system will get degradation or instable. in order to overcome this problem, a control algorithm with guaranteed feasibility is proposed in this paper. it is shown that the algorithm makes the plant asymptotically stable and drives condition setpoint close to the actual setpoint of the plant
文摘:在系統輸入受限的情況下,採用一般的廣義預測控制或受限時域預測控制有可能會造成控制演算法不可行,從而使系統的性能變壞或不穩定.針對這個問題,本文提出一種保證可行性的控制演算法,並證明該演算法能夠使系統漸近穩定且最終使條件設定值跟蹤系統的實際設定值The most vulnerable financial markets, other things being equal, are the medium - sized ones, which have adequate liquidity to attract international capital but which are, unfortunately, small enough for short - term trends to be dictated by large operators looking for short - term gains. there is also the temptation to engage in manipulative behaviour, amplifying volatility and vulnerability to financial instability
假設其他條件相同,最受威脅的是規模適中的金融市場,它們有足夠的流動性吸引國際資金,但不幸的是市場規模又夠細小,足以令其短期趨勢可以受到圖短利的大戶主導加上操控活動有其吸引之處,市場波動以至金融不穩定的機會更大。3. the reaction of lanthanide powder with anthracene in the presence of ticl4 catalyst in tetrahydrofuran at 0 - 60 under normal pressure generated organolanthanide compounds, which are less thermal. it was found that the decomposition of the organolanthanide compounds in vacuum could give rise to lanthanide powder of nanometric size with high purity accordingly
3 .納米尺寸鑭系金屬粉末制備的研究溫和條件下,採用絡合催化法合成鑭系金屬有機化合物,利用它的熱不穩定性,在真空條件下進行熱分解來制備納米尺寸鑭系金屬粉末。At the same time, for the process additive and multiplicative uncertainties mostly encountered in practice, the sufficient and necessary conditions for holding the control system robust stability are analyzed, and thus, an intuitive determination method is provided based on the spectral radius criterion
同時,對于實際中最常見的被控過程的加性和乘性不確定性,分析了控制系統保證魯棒穩定性的充要條件,由此給出了基於譜半徑判據的直觀判定方法。Under that condition the strain can produce the most concentration of the bioactive compounds. the physical and chemical properties of the actibacterial compounds have been studied, the results showed the bioactive substance has heat stable, acidity and weakly alkali stable. it can be dissolved in acid water, chloroform solvent, can not be dissolved in ethyl acetate, petroleum ether, alkali water. the result of thinlayer chromatography showed the bioactive compounds can give off blue and green fluorescence in the uv light. the paper chromatography demonstrate the bioactive substance may be a new construct compounds
研究表明,該活性物質具有較強的熱穩定性, ph 9的條件下能穩定存在,但ph 12的強堿性條件下活性物質的抗菌活性幾近喪失;活性物質易溶於氯仿、酸性水、不溶於乙酸乙酯、石油醚、堿性水;薄層層析顯示活性物質在紫外光下能發藍綠色熒光等特點;由捷克八溶劑系統紙層析鑒定該抗菌活性物質不屬於四大類抗生素,可能為一新的抗菌活性物質。Sb2015 - 3 precision decade dc resistance box adopts high voltage glass glaze resistors and special high voltage seal switch. its electric performance is very stable and insulation intension is very high. the resistance value can be adjusted under the condition of ceaselessly opening voltage ( note : the using switch should not be at the point of 0. ) it is easy to operate and suitable to be used to calibrate insulation resistance meter, and suitable to be used as high resistance standard
3型精密十進位直流電阻箱採用高壓玻璃釉電阻器及獨特的高壓密封開關,電性能穩定可靠、絕緣強度高、可在不斷開測試電壓的條件下調節電阻值(正在使用的那隻開關不處在「 0 」位置時) 、操作方便,適用於檢定/校準絕緣電阻表,也可作為高阻標準。Sb2015 - 2 precision decade dc resistance box adopts high resistance superfine glass silk and special high voltage seal switch. it electric performance is very stable and insulation intension is very high. the resistance value can be adjusted under the condition of ceaselessly opening voltage ( note : the using switch should not be at the point of 0. ) it is easy to operate and suitable to be used as dc resistance standard to calibrate insulation resistance meter
2型精密十進位直流電阻箱採用高阻玻璃微細絲電阻器及獨特的高壓密封開關,電性能穩定可靠、絕緣強度高、可在不斷開測試電壓的條件下調節電阻值(正在使用的那隻開關不處在「 0 」位置時) 、操作方便,適用於檢定/校準絕緣電阻表,也可作為直流電阻標準。In this dissertation, the experimental study of rolling condition on two - phase flow instabilities of the forced - single - tube circulation system was carried out. furthermore, based on the d - partition method and the hypothesis of drift flow model, given some conservative equation, using the perturbation method the response of the pressure drop of the tube to the inlet flow rate perturbation was analyzed both in rolling condition and in normal upright position
本文主要通過實驗對搖擺條件對單管強迫循環中汽液兩相流動不穩定性的影響,同時在d分區法的前提下,在兩相區基於漂移流模型,一定的守恆條件下,在搖擺和不搖擺工況中用線性小擾動法對實驗段的壓降對入口流速的擾動的響應進行了分析。This kind of instability bulk movement is induced by wave cyclic loading, as a result the slope of bottom bed decrease, water depth increase, and instability bulk movement has the character of subregion, regularity and head erosion, thus it will influence evolvement of region of interest landform, and change flow field and bottom stratum condition continually, so will lead to dynamic influence on structure foundation soil
這種不穩定塊體運動由波浪循環荷載誘發,其結果使底床整體坡度減緩,水深加大,而且不穩定的塊體運動具有小區域、多發性和溯源侵蝕的特點,將繼續影響著海域以後的水深地形的發展演化,並不斷改變著該區的流場與底床地層條件,對構築物地基土的穩定性產生著動態的影響。Considering the contents of slope model, practice of slope engineering and the present research situation on models for slope and their application situation, this paper puts forward a geological engineering model for slope, and states its definition, contents and establishment methods. this paper then points out, firstly, that the geological engineering model for slope is the product of the unification of engineering and geological conditions of slope, which are complemented to and interacted with each other ; secondly, that engineering conditions are vital in this model, and the stability of slope is up to the coupling degree of engineering conditions and geological conditions, which increases as the degree grows and decreases as it lowers
從模型的內涵和邊坡工程的實際出發,根據目前邊坡中模型的研究和應用現狀,提出了邊坡地質工程模型,並論述了邊坡地質工程模型的含義、內容以及建模方法,指出邊坡地質工程模型是邊坡工程條件和工程地質條件一體化的產物,兩者相輔相成、互饋作用,工程條件在邊坡地質工程模型中有著重要的地位與作用,邊坡的穩定性取決于這兩個因素的耦合作用程度,耦合程度越高,邊坡越穩定,反之越不穩定。To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated
建立電子槍和聚焦系統模擬模型,分別在真空和填充等離子體條件下進行模擬。發現填充等離子體能補償部分空間電荷效應,改善電子束包絡軌跡,提高電子的流通率,但是隨著等離子體密度的增大,束電子會出現振蕩不穩定性,遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers
文摘:以雙流體模型為基礎,通過質量守恆方程和動量守恆方程的耦合,提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件,計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響,解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明,乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變,隨液滴尺寸多分散性的增大,極大堆砌分數增大;隨液滴平均尺寸的增大,多分散性對極大堆砌分數的影響減弱;當韋伯數足夠大時,液滴尺寸及其分佈對乳化液極大堆砌分數無影響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。Secondly, using fixed point method and lyapunov functional, we establish the sufficient conditions which guarantee the existence, uniqueness, uniform stability, instability and global attractiveness of almost periodic solutions for the equations, so that we obtain some new results
其次,我們利用不動點方法和lyapunov泛函方法,建立了保證該類方程概周期解的存在性、唯一性、一致穩定性、不穩定性及全局吸引性的充分條件,從而得到了一些新的結果。From the un - continual combustion model, and to a continual model there is a gradual transformation process, while an abrupt change in the process from an inflammable model to un - continual combustion model, which means there exits a critical value in the later
從不可燃燒到能夠燃燒是一個突變的過程,體系往往存在著一個臨界的燃燒條件;從不穩定燃燒到穩定燃燒是一個漸變的過程。通常的shs動力學相圖中對此並沒有明確的表述和體現,對于不穩定燃燒也僅是一個定性的描述。分享友人