等烈度線 的英文怎麼說
中文拼音 [děnglièdùxiàn]
等烈度線
英文
coseismal-
The research on attenuation features of intensity in the yunnan region by using intensity isoseismals of 127 earthquakes, and the following three conclusions have been put forward : ( 1 ) average ratio values of long - axis to short - axis of innermost isoseismal in the yunnan region is larger than eastern china and smaller than western china
摘要本文利用127次地震等震線資料，對雲南地區地震烈度衰減特徵進行了研究，其結果表明： （ 1 ）雲南地區地震烈度極震區等震線的長軸、短軸之比的均值，高於我國東部地區而略低於西部地區的平均值，烈度衰減方向性強。The investigation and study showed that caused by the influencing factors of unit of tectonics, structures of floor rock stratum, conditions of landform, seismic intensities, fault, thickness of malan loess, the distribution of seismic loess landslides is very asymmetrical, which mainly show shapes of patch, belt, line, and there are different development characteristics in different regions
現場調查顯示，受大地構造單元、基底巖層結構、地形地貌條件、地震烈度、斷裂構造和馬蘭黃土臨空厚度等因素影響，地震黃土滑坡的展布形態較為復雜，在空間上分佈很不均勻，常表現為片狀、帶狀和線狀展布，並在不同區域有不同的發育特點。In this dissertation, two kinds of optimization, methods are proposed. firstly, only these linking weights corresponding to the control rules that affect the control performance significantly are updated in order to reduce the compute works and speed up the training progress. secondly, the updating step is adjusted adaptively in accordance with the error and the change of error of the system based on the t - s model to get better performance
針對模糊神經網路控制器一般存在著在線權值調整計算量大、訓練時間長、過度修正權值可能導致系統劇烈振蕩等缺點，提出了兩種模糊神經網路控制器的優化方法：在線自學習過程中僅對控制性能影響大的控制規則相關的權值進行修正，以減小計算量，加快訓練速度；基於t - s模糊模型，根據偏差及偏差變化率大小動態自適應調節權值修正步長，抑制控制器輸出的劇烈變化，避免系統發生劇烈振蕩。Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled
（ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。The fractal dimensions of elevation isolines in 6 studying sections from 3 different types of geomorphological zones, including high mountain, low - moderate mountain and catchment basin, are computed by using successive coarsening method. the results show that all the studied isolines are statistical fractals, and the fractal dimensions take on different characters for different geomorphological types and scale ranges
在0 . 1 - 10km標度范圍內，等高線分維值總體表現為最新隆起區（中低山區） >強烈隆起區（高山區）沉積凹陷區（盆地區） ；在5 - 200km標度范圍內則表現出強烈隆起區最新隆起區沉積凹陷區。Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants
文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映Mesoscale low vortex ' s " wandering " at eastern anhui province and stronger development at the stiff moist isentropic surfaces are very important to this heavy rainfall process
中尺度低渦在安徽東部移動過程中的「打轉」和在等熵面上沿梯度密集等壓線的運動和強烈發展，對這次強降水過程具有重要作用。However, under heavy contention, performance will suffer dramatically, as the jvm spends more time dealing with scheduling threads and managing contention and queues of waiting threads and less time doing real work, like incrementing counters
然而，在競爭激烈時，這將大大損害性能，因為jvm用了更多的時間來調度線程，管理競爭和等待線程隊列，而實際工作（如增加計數器）的時間卻很少。In this paper, the attenuation zones of intensities in china are determined by using of the abundant intensity isoseismals and then the attenuation relationship of intensities are developed
摘要本文利用我國豐富的地震烈度等震線資料，確定了我國烈度衰減關系分區，並建立了分區地震烈度衰減關系。Which will eventually form stars of spectral types g, k or m. t tauri stars are surrounded by a huge cloud and they are very young, with low surface temperature. they emit most of their light in the infrared region and they appear red. a general principle is, a violent reaction will give out short wavelength waves, like gamma rays or x - rays ; while a gentle process will radiate long wavelength waves, like radio or infrared
，這類星最後會演化為g k或m型恆星，金牛座t型星為表面溫度低而非常年青的恆星，四周被星雲所圍繞，所以這種星顏色偏紅，較容易在紅外線波段找到一個普遍的原則是，如果活動越激烈，則所放出的光波波長越短，主要會為伽瑪或x射線如果活動溫和，則會發放出如無線電波或紅外線等長波長電磁波。分享友人