極限點型 的英文怎麼說

中文拼音 [xiàndiǎnxíng]
極限點型 英文
limit point type
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
  • 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  1. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模,對中國古代木結構中的典構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模材料的變形模量、承載力、變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的承載力和變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓承載力及受力變形規律; (五)通過抬梁式殿堂間架模振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  2. For the hyper accuracy interpolation technique, which resolves the accuracy limitation of pixel physical size, derives out the star spot interpolation accuracy limitation based on the star spot mathematical model and photoelectric statistics

    針對克服像元尺寸對測量精度制的超精度內插細分技術,在建立了星光斑數學模的基礎上,利用光電統計理論,推導了星光斑內插細分精度的公式。
  3. 2, in the experimental study, 12 joints tests are completed, including 5 uniplanar x joints loaded with axial forces, 3 uniplanar x joints loaded with in - plane bending, 4 multiplanar xx - joints loaded with axial forces, with the emphasis on the influence of and the existence of the out - of - plane braces, of which the multiplanar xx - joints tests is the first experiment project in china

    其中,對等寬方管節( = 1 . 0 )推求了考慮薄膜效應影響的承載力公式。 ( 2 )試驗研究:本文共計進行了12個方管平面x和空間xx相貫節試驗研究,進一步加深對方管相貫節的感性認識,了解其實際破壞模式。
  4. Combining with the research task researching on the deformation and stability of deep excavated cuts and high filled embankment of the traffic department in fujian province, based on the residual soil slope project on the project site at k15 + 183 of yong - zhang highway ( yong ' an section ), adopting non - linear theory, modern monitoring technology and numerical simulation technology, the deformation and stability of cutting cliff debris and residual soil slopes have been studied systemically and synthetically in the thesis. at the same time theory analysis, the analysis and estimate of field monitoring are taken into account in this course. main research work and working achievement are summed up as follows : ( 1 ) with the acquaintance of the trends and development about the deformation and stability of slopes at home and abroad, slopes are classified and summarized systemically

    並通過k15 + 183工路塹土質邊坡的各類位移變形的監測成果驗證了該程序的正確性及適用性; ( 5 )通過應用大元軟體ansys模擬分析,不僅分析了其隨著開挖時間步的應力應變關系,並模擬了與實際測斜管相匹配的測斜路徑,通過對各開挖時間步的模擬計算分析,得到了與實測數據較符合的結果; ( 6 )綜合監測分析成果和平衡理論計算分析成果,對k15 + 183工路塹邊坡的原設計坡率和幾何形態進行了優化計算分析,取得了較為滿意的結果。
  5. In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay

    本文第二章首先建立了封閉系統的利率?流通量微分方程模,證明了各結利率加權和為常數即金融市場利率均衡原理,以及各結利率為整個網路平均利率;其次在各結基本利率不相同的情況下,建立了非齊次利率?流通量微分方程模,證明了金融網路各結利率加權和仍是一個常數,並證明了各結兩兩之間的即時利率之差最終將穩定地趨于其基本利率差;此外,還研究了開放金融網路利率?流通量方程模,考慮了結自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律,用lyapunov穩定性理論證明了模均衡解的穩定性;最後,還研究了具有時滯的金融網路利率?流通量方程模,並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。
  6. Similarly, according to the deformation mechanism of ebsf and the virtual work theory, the influence of three different active beam links on the terminal carrying capacity, stiffness and ductibility of ebsf is deducted

    同樣,根據偏心支撐框架的幾何變形機制,應用虛功原理,重推導並分析比較了分別採用d、 k或者v支撐時對結構的承載力、彈性剛度以及延性的不同影響。
  7. Based on the pseudo - static experimental results of nine abnormal joints, the damage process of abnormal joint is divided into four stages of original crack, entire crack, ultimate state and failure, the effect of axial force ratio, stirrup ratio and height of column section on seismic behavior of abnormal joint are discussed, the conclusion that anti - shear capacity of abnormal joint are studied in entire crack state by studying the minor core of abnormal joint is made, the calculating formula for anti - shear capacity of abnormal joint is proposed with a view to asymmetry in stirrup yield

    摘要根據9個鋼筋混凝土框架異試件的擬靜力試驗結果,指出異受力過程分為初裂、通裂、和破壞4個階段;討論了軸壓比、節核芯配箍率、柱截面高度變化對異抗剪性能的影響;提出應考慮節核芯區箍筋屈服的不均勻性並在通裂狀態下以「小核芯」為分析單元來研究此類節抗剪承載力的建議;最終給出了異抗剪承載力的計算公式。
  8. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先,分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理,結合包含損傷和應變率效應的材料動態本構方程,建立了纖維復合材料板彈道速度的預測公式;其次,根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特,建立了陶瓷/復合材料靶板抗彈性能分析模,給出了彈道速度預測公式;最後,利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題,對雙層陶瓷復合靶板的優化設計進行了分析,給出了在一定面密度下的最佳優化系數,討論了一定彈道速度下的面密度和厚度隨優化系數的變化關系。
  9. Though much progress has been achieved in previous study, there still remains a lot to be studied and perfected. the thesis is devoted to study on the multi - ribbed slab wall, the main bearing member in mrss, including its mechanism, failure mode, aseismic capability, mechanical models, ultimate bearing capacity and aseismic design based on control. the paper mainly accomplished such work as follows : 1 ) based on test research on multi - ribbed slab wall, the paper proposed the member ' s failure modes under horizontal loads, analyzed the co - performance between the inner frame and the infilled silica bricks and that between the slab and the outer frame, discussed the wall ' s bearing capacity, rigidity, deformation, ductility and energy dissipation ability in different modes, and put forward a simplified mechanical model of the slab wall under vertical loads

    本文針對密肋壁板結構的主要受力構件? ?密肋復合墻體為研究對象,就其受力機理、破壞模式、抗震性能、三階段力學模承載能力以及基於控制的抗震設計方法等進行了較為詳細的研究,完成的主要工作有: 1 )通過對密肋復合墻體在水平低周反復荷載和單調荷載作用下的試驗研究,提出了墻體的主要破壞模式;分析了框格與內部填充砌塊、墻板與外框的共同工作的受力特;探討了不同破壞模式情況下墻體的承載能力、剛度、變形、延性、耗能等抗震性能,並給出了豎向荷載作用下密肋復合墻體的簡化力學模
  10. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1電化學抑制柱為例,分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的電流密度,因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率,在通常情況下電流效率可達到90以上;在選用同種離子交換膜的前提下,可通過增加離子交換膜的有效面積達到提高電流的目的從而提高抑制柱的抑制容量,因此提出了多級抑制的概念並據此研製了共電式高容量電化學抑制柱,該抑制柱最高可將流速為1 . 0ml / min ,濃度為200mmol / l電導率超過10000 s ? cm ~ ( - 1 )氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ ( - 1 )的純水,並且具有穩定性高、分析結果準確等優
  11. Hook from exreme alertl : when the cci goes over + 200 or - 200 this will light up to alert you

    警報:當cci線在+ / - 200之外時警報就會亮起警告你。
  12. In this paper, based on the analysis of the rlem of theory foundation, computing method, preference, applicability, etc, we anatomized the rlem of three self - deficiencies and six scarcities. moreover, we adopted the parallel ways of contrasting the rlem with the fem and applied it to analyzing the impact of slide block of elasticity and plasticity, slip surface of coefficient and slip bed of elasticity, plasticity upon the stability of slope and in the plain linearity slope, the plain refracted line slope and the plain arc slope. in addition, we discussed the warp of between the lem of ( sarma, janbu, order, bishop, morgenstera - price, etc ) and the fem of result and the distributing of positive stress and shear stress on the slip surface

    本文從剖析剛體平衡法的理論基礎、計算方法、參數選取、適用條件等方面入手,剖析了剛體平衡方法的3自身缺陷和6不足,並在此基礎上採用了剛體平衡法(平面滑動破壞法、 sarma法、傳遞系數法、普遍條分法、 janbu法、 bishop法、 morgenstern - price法)與大元法對比研究的方法,分析研究了平面直線滑坡、平面折線滑坡、平面圓弧滑坡在漸進破壞中邊坡的滑體彈塑性參數、滑麵塑性參數) 、滑床的彈塑性、以及平衡法無法考慮開挖應力釋放等因素對邊坡穩定性的影響與滑動面上的正應力、剪應力分佈規律、安全系數的解答的差異。
  13. Finally, a set of equations is proposed to predict the ultimate strength of such connections, the results of which accord with that of both tests and fea

    在此基礎上,對矩形鋼管混凝土t 、 y的構造要求進行了探討,提出了可供工程應用的矩形鋼管混凝土t 、 y承載力計算公式。
  14. Finally, this paper set up the substitute model between the new technology and the old one and studied characteristic of the diffusion system applied system dynamic method such as the stable points and phase portrait and hopf bifurcation and limit cycle of it. then studied the probability distribution function of them, and the probabilistic equation of this system

    最後建立了四川大學碩士畢業論文創新技術和舊技術的技術更替模,並運用系統動力學的方法分析了擴散系統在其不動附近的變化特徵和相圖以及改進系統的hopf分支、環等性質,討論了新舊技術的概率分佈,並且將動力學方程轉化為概率方程進行分析。
  15. Problem set 2 : continuum approximations of non - stationary random walks, random walk in a harmonic well, steps with fat tails, saddle - point asymptotics

    問題2 :非穩定隨機漫步的連續,具調合井的隨機漫步,具備巨大尾部的漫步,鞍近似解。
  16. Through the comparative text of the four reinforced concrete frames braced with the eccentric steel, which have the same shapes, materials, dimension and the different brace form, several parameters of these frame behavior, such as side stiffness, limit load and energy consume ability, were studied. the limit state of these frames were analyzed

    本文通過對四榀具有同一外形尺寸及配筋而具有不同式的偏心角鋼支撐的鋼筋砼框架和一榀相同尺寸及配筋的鋼筋砼框架的對比性試驗,研究了上述結構的抗側剛度、承載力及結構的耗能等各項指標,探討了偏心角鋼支撐鋼筋砼框架結構的受力特,並對其狀態進行了理論上的分析。
  17. From the unique viewpoint of shannon information theory, this dissertation investigates the varying and transmission of information and uncertainty in control systems using measures of entropy, mutual information, kullback - leibler information and information rates, in time and frequency domains, respectively. several problems concerning state estimation, modeling, h control, performance limits and design constraints of control systems are addressed under this framework

    論文以有別于傳統控制理論的獨特視角? ?信息的觀研究控制系統,採用shannon信息論中的熵、互信息、 kullback - leibler信息及相應的信息率分別考察了控制系統在時域和頻域中信息和不確定性的傳輸和變化,討論了狀態估計、模化、 h _控制及控制系統性能和設計約束等領域的相關問題。
  18. Finite - element study on the ultimate strength of planer overlap tubular k - joints and full scale tests on the ultimate strength of chs joints are researched in this dissertation

    本文研究的內容主要包括平面k圓鋼管搭接節承載力的有元研究和圓鋼管相貫節承載力的足尺試驗研究兩部分。
  19. At last distribution functions of load modes in life service are presented. based on the resisting force model and load model, the limit state equations of rc bridge are formulated. according to the resisting force is time - dependent and vehicle load is the non - gaussian distribution, jc method is applied to calculate the time - dependent reliability index of rc bridge

    在抗力衰減模及橋梁荷載模的基礎上,將可靠度理論引入橋梁結構的評定中,推導出了橋梁結構耐久性狀態方程,並根據耐久性狀態方程中抗力是時間的函數,以及車輛荷載為非正態分佈的特,應用當量正態法( jc法)編制相應的程序計算橋梁構件的時變可靠度指標。
  20. In the second chapter, we obtain the necessary and sufficient condition where the cubic kolmogorov type system is bounded if homogeneous polynomials of degree 3 are relatively prime. and we obtain there are only four behaviours of the trajectories near the equator of the bounded cubic system if the homogeneous polynomials of degree 3 are relatively prime. in the third chapter, we study the existence and nonexistence of limit cycle for a class of bounded cubic systems

    第一章為引言;第二章,我們得到了齊三次項互素時三次kolmogorov系統有界的充分必要條件及其在赤道上孤立奇附近軌線的分佈情況有且僅有四種;第三章,我們研究了一類有界三次kolmogorov系統環的存在性與不存在性。
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