unstable stability 中文意思是什麼
unstable stability
解釋
不安定性-
Design and stability analysis of reinforcement for cut slopes of an unstable rotten andesite on luo - san expressway
洛三高速公路失穩風化安山巖路塹邊坡加固方案及穩定性分析 -
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。 -
As the increase of domestic high - rise buildings, more and more deep foundation trench supporting constructions have come into existence. among the general geographical condition of the urban district in qingdao, most of regions, which mainly consist of strong de composed rocks, are in quite good condition. except for the sandy soil and oozy soil along sea sides. but the development of rock cracks and breaking zones and unstable lamprophyre still exist, so blasting is needed during constructions of foundation trench. blasting have bad influence on the stability of slopes. moreover. the slope - liding has happened for several times, so the engineering project of foundation trench attracts more attention of people
隨著國內高層建築的發展，深基坑支護工程越來越多，綜合青島市區的地質狀況，除海邊有砂性土及淤泥軟土外，大部分地域巖土條件相對較好，多以強風化巖為主，但巖石裂隙發育，間或有斷裂帶和穩定性極差的煌斑巖穿插其中，基坑施工時需要爆破施工，對邊坡的穩定造成了不利影響，加之連續出現的幾次滑坡失穩事件，基坑支護工程越來越引起了各方面的重視。 -
Provide additional stability to the trees in the soft unstable substratum by broadening the tree base
是用來擴闊樹基，從而穩定了在松軟泥土上生長的紅樹。 -
For bulk materials, if historical data shows that similar processes are chronically unstable, and previous actions have been unable to achieve stability, corrective action plans may not be warranted
對于散裝材料，如果過去的數據表明類似的過程長期不穩定，且以前實施的措施不能使其達到穩定，則可以不必保證糾正措施計劃。 -
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 : according to sidewall unstable problem during dr illing, the study on sidewall stability is developed. the paper analyses sidewall stress state and sidewall unstable type, and combines with log data and indoor e xperimental result of core. through analysis and calculation, the method of calcul ating slough formation pressure is proposed. by application of the method in 3 wells in yancheng area, result shows that slough pressure section fits in with field practical condition. it supplies some basis for design of drilling fluid d ensity
文摘:針對鉆井中井壁失穩問題開展井壁穩定性研究，文中就井壁應力狀態和失穩類型進行分析計算，並結合測井資料和巖心的室內實驗結果進行分析，建立了一套計算地層坍塌壓力的方法，結合鹽城地區3口井應用對比，坍塌壓力剖面基本吻合現場實際，為鉆井液密度設計提供了一定的依據。 -
The double inverted pendulum system is a nonlinear and unstable control problem. obviously the study of a typical, nonlinear and unstable system has the more important meaning on both the theory and methodology. modeling for the double inverted pendulum has the instructional function to study the stability of the system
顯然對一個典型的非線性、不穩定系統的研究成果無論在理論上或是在方法論上都有重要的意義，而二級倒立擺數學模型的建立對研究其穩定性具有指導作用。 -
The security that the boiler burns depends on the stability of flame mainly, in order to avoid the emergence of the explosive incident of the boiler, the coal powder must be burnt steadily in the stove, if it is unstable to burn, temperature field is not even in the stove, light to cause thermal efficiency of boiler reduce greatly, cause to waste, heavy and easy to is it produce stove serious consequence to present
鍋爐燃燒的安全性主要取決於火焰的穩定性，為了避免鍋爐爆炸事件的發生，爐內煤粉必須穩定燃燒，如果燃燒不穩定，爐內溫度場不均勻，輕則導致鍋爐的熱效率極大地降低，造成浪費，重則容易出現爆爐等嚴重後果。 -
Discontinuous deformation analysis of rock slope stability under unstable seepage flow
非穩定滲流作用的巖體邊坡穩定非連續變形分析 -
Abstract : the authors discuss roundly source of loose earth fo r impact - deposit debris flow to develop taking pingchuan debris flow, one of the quite typical impact - deposit debris flows in southwest sichuan province ， as an example in this paper. on the basis of detailed investigations in - situ, geotechn ial testing in lab and theory analysis, all results indicate obviously that moder ate and bulky loose earth in giant debris flow situating in southwest sichuan mo untainous area are main institute, whose tribulation are consistent with landform s. loose earth locating in mid - forepart catchment are quite unstable, so often be comes main source of loose earth of debris flow. formation of loose earth is cont rolled principally by geologic and geotechnical environment while human actions is the secondary factor for loose earth to form. in many times, human actions prov ide loose earth through loose earth stability
文摘:本文以極具典型的平川泥石流為例比較全面的分析了沖淤變動型泥石流的物源問題.根據現場調研及室內巖土分析進行的研究成果顯示，川西南高山深谷地區的大型泥石流溝中的鬆散土體以中、粗粒段為主，其分佈與地形密切相關；位於泥石流溝中、前部位的鬆散土體的穩定性最差，是補給泥石流的重要物源；鬆散土體的發育主要受控于地質及巖土環境，人類活動只能影響鬆散土體的穩定性 -
In this paper, dynamic stability of parametrically excited flexible cam - follower system on the weakly nonlinear condition is investigated by using the combination of both the method of multiple scales and the technique of fourier series expansion. the equations of approximate transition curves in the plane of the dimensionless frequency and excitation ( amplitude ) parameter that separate stable from unstable solution are derived
隨后，本文採用多尺度法並結合fourier級數展開，分析了不同的凸輪從動件運動規律和不同的凸輪的升程、停程以及回程的時間分配規律下，無間隙的周期時變凸輪系統模型的穩定性，獲得了各種規律下的凸輪系統的穩定區間圖。 -
In view of the poor thermal stability of polyoxymethylene ( pom ) induced by the residual catalyst and unstable end groups formed in the synthesis of pom. the pom was treated by amine, and the effects of the variety of amine compounds, treatment technology and water content on the thermal stability of pom were investigated ; the effect of triethanolamine on the thermal stability of pom was further studied by means of isothermal mass loss, isothermal mass loss rate, and formaldehyde emission amount
摘要針對聚甲醛由於合成中殘留催化劑及不穩定端基導致其熱穩定較差的問題，採用胺對聚甲醛進行處理，並考察了胺種類、胺處理工藝及水用量對聚甲醛熱穩定性能影響；採用等溫熱質量損失率、等溫熱質量損失速率、甲醛釋放量分析等方法對三乙醇胺對pom的熱穩定作用進行了進一步研究。 -
Through such a study, it is also shown that when the time delay is long enough such that the stability switches of the equilibrium of system halt, the bifurcation branches originated from the critical time delays cannot be surely stable or unstable in the whole solution space, that is, their stability depends on cases. this phenomenon also implies that the stability of the periodic solutions on the bifurcation diagrams indicates only the stability on the local center manifo ld. some distinguished features of delay dyn
利用打靶法的數值結果說明了當系統平衡點不再發生穩定性切換時，源自這些臨界時滯處的解支的穩定性在整個解空間的穩定性具有不可判定性，這也說明由多尺度法所得高階近似判定的解支的穩定性事實上只表示解支在局部中心流形上的穩定性，而非在整個解空間中的穩定性。 -
But it is difficult to be synthesized, and its unstable structure results in rapid capacity fading and bad thermal stability
但是該材料合成困難，由於結構不穩定會導致容量衰減、熱穩定性差。 -
The charging - discharging capacity of linio2 is high but it makes serious environmental pollution and is difficult to be synthesized. the structure of it is unstable, the thermal stability of it is bad, which will cause the decrease of the charging - discharging capacities
鎳的資源豐富， linio _ 2比容量高，但存在污染環境、合成困難、熱穩定性差、結構不穩定引起容量衰減等問題。 -
As is seem from above, if the natural ground is filled directly in high - fill side slope at liho airport. the entire stability of the side slope filled is good. there are n ' t global stability problems alongside with the hight of the strong - moderate weatheing mud shaly, but there are n ' t unstable location partly, alongside with overburden slipping
四川大學工程碩士專業學位論文通過以上分析得知，荔波機場高填方邊坡若直接在天然地基上填方，填方邊坡整體穩定性較好，場區不存在沿強一中風化泥頁巖的深部整體失穩問題。 -
All these have the theoretical meaning and applicable value, and also present useful reference to the slope stability analysis, slope disaster prediction and slope control etc. under unstable seepage
可為非穩定滲流下邊坡穩定分析、滑坡災害預報和邊坡治理等方面提供有用的參考，具有一定的理論意義和使用價值。 -
Stability characteristics are obtained through numerical analysis. in general, the influence of fibre additives and their hydrodynamic interactions to the flow results in the increase of critical reynolds number and the reduction of unstable region of disturbances, therefore reinforces the flow stability
數值求解穩定性方程得到懸浮流的穩定性特徵，發現纖維參數h值和水動力相互作用系數c _ 1的增加導致流動臨界re數增大，不穩定擾動的最大增長率降低，擾動失穩范圍縮小。 -
On the basis of stability analysis, the author takes the k27 + 825 slope from the type of slope which has lest stability as an example. according to its basic feature, the design ueses the choosed best reinforce and control scheme : lattice beam, anchor wire, grouting and abstraction of water. in the course of design, the author takes into account not only reasonable optimize of whole control plan but also local measure such as whether the unstable block will shear from vnlnerable sections when control plan is laid out concretely, in order to reach the goal of reasonable design and effective control
在穩定性分析的基礎上，以邊坡穩定性最差的一類中的k27 + 825邊坡為例，結合其自身的特點，用優選出的加固防治方案：框架梁+錨索斗灌漿+排水進行設計，設計中既考慮總體防治方案的合理優化，又充分考慮了加固工程的具體布置時是否存在不穩定體從錨索或框架梁的薄弱部位剪出的可能性等一些細部措施，以達到合理設計，有效及經濟治理的目的。
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