間線不均 的英文怎麼說
中文拼音 [jiānxiànbùjūn]
間線不均
英文
irregular top-stitching-
The space - time distribution of chinese semi - ari d region surface water is n ' t even, the differences in a year are obvious ; the differences of underground water between years are not so obvious as surface water, but it still has a decreasing tendency, especially in shanxi and sha ' anxi provinces. there is a significant linear correlation between the precipitation and water resources in semi - arid region, the dynamic regularity of water resources is basically same as the dynamic regularity of precipitation
半乾旱地區地表水資源時空分佈不均勻,年內分配差別大,地下水資源年際間變化率不大,但總體有減少的趨勢,尤以陜西和山西突出。半乾旱地區降水量與水資源量線性相關顯著,降水量的變化規律基本上與水資源量的變化規律吻合。Therefore we should choose length, width, height and interval of frames according to water height and demand of velocity. the results can be used for reference to the design of bank protection works
隨著l h 、 b h 、 a h的增加,框架群后對應點垂線平均流速的減速率也逐漸增加,保護區長度、寬度也不斷增加,因此,應根據不同的水深和減速率要求拋投相應長度、寬度、高度、間距的框架群。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。Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward
從輪軌摩擦、輪軌接觸幾何關系、輪軌接觸應力和輪軌蠕滑等方面對鋼軌側面磨耗機理進行了探討,從軌道幾何參數、機車車輛運營條件等方面對鋼軌側面磨耗的影響因素進行了重點分析和總結;應用輪軌系統動力學,建立了輪軌空間耦合振動時變模型,採用vogel側磨指數作為鋼軌側磨指標,系統分析了輪軌參數變化的情況下,軌頭側面磨耗的變化規律,重點分析了軌道不平順對鋼軌不均勻側磨的影響;對山海關工務段1990年以後現場測得的曲線鋼軌側磨數據進行了分析,通過擬合得到了鋼軌側磨量與運量的關系曲線,並總結了曲線上股鋼軌側面磨耗的特徵和發生、發展規律;最後提出了一些減緩曲線鋼軌側面磨耗的措施。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By introducing a parameter into the three sources evaporation module of xin ' anjiang model, the whole layers nonlinearity method and the middle layer nonlinearity method were applied to evaporation computation to study the effect of spatial soil evaporation variability on runoff simulation
模擬結果說明模型參數的空間不均勻性對水文過程模擬的影響是很大的。將新安江蒸發模型引入一個新的參數,採用整層非線性方案和中層採用非線性方案來分析土壤蒸發不均勻性對模擬水文過程的影響。The polygon morphing was investigated, and a morphing method was proposed, in which the polygon is deformed by interpolating the rotation angles and rotation matrices of their corresponding edge vectors
摘要研究平面多邊形的變形問題,提出了一種通過插值邊向量間旋轉角度及旋轉矩陣的變形方法,較好地克服了頂點線性插值法引起的多邊形邊長變化不均勻的萎縮現象。Acquisition and examination of image data from a phantom ( inert test sample ) to investigate image intensity non - uniformity, spatial and temporal noise from instrumental sources, and rf receive coil properties
用假體(無生命的測試樣品)來取得影像並檢視資料,以探討諸如影像信號不均勻、儀器產生的空間與時間雜訊,以及射頻接收線圈特性等現象。Because the intervals of two side girders are relatively large in the structure of the floor, it is not even and some and out of shape that its bridge of panels must be produced at the same time horizontally and crookedly and vertically except deforming wholly, level analyse can receive the satisfied result already at this moment, is it is it accord with floor structure real work state, girder of cable - stay bridge just to analyse with whole out of shape relevant non - linear space of function while being out of shape while being above - mentioned to consider only, but about this research rarely seen to report bridge worker is it understand their receive strength characteristic in an all - round way to need badly publicly
由於肋板結構中兩個邊主梁的間距較大,其橋面板除整體受力變形外必然同時產生橫向彎曲和縱向不均勻局部變形,此時平面分析已不能得到滿意的結果,只有考慮上述變形與整體變形相關作用的非線性空間分析才符合肋板結構主梁斜拉橋的實際工作狀況,但有關這方面的研究鮮見公開報道,橋梁工作者急需全面了解其受力特性。By simulating mathematically on frequency and on space, we can find the average speed of space field and the average speed of frequency field that is weighted by amplitude, and analyse their relation, and analyse the meaning of space speed variance x and frequency speed variance v. in the fourth part, how to ensure the height of cloud is introduced, and basing on the theory of wind field continuity, the height updating quality controlling is introduced. in the fifth part, the system of cloud wind is introduced, we tracked cloud - motion of consecutive satellite images with one - minute interval by the 1 - d fourier analysis technique and the two - dim fourier analysis technique and the fft analysis technique, and dispose them with quality controlling. in the sixth part, we summarized our research and put up with shortages of this article
模擬模塊內各點的速度線性變化時,得到空間域平均速度以及頻率域以振幅為權重的平均速度,分析了空間域平均速度和頻率域以振幅為權重的平均速度的關系,並揭示空間域的平均速度的標準差_ x和頻率域的振幅為權重的平均速度的標準差_ v的意義,以及它們之間的關系;第四章介紹了雲跡風系統的高度指定以及風矢高度的劃分,並根據風場連續性原理,介紹了高度調整法的質量控制;第五章介紹導風系統的流程,選擇了三個時刻的ir雲圖,分別用一維傅立葉相位法、二維傅立葉相位法和快速傅立葉演算法計算一個風場個例,並對所得風場進行質量控制,並給出風場圖;第六章進行研究總結,指出不足和有待于進一步研究之處。Theoretically, there is a isotropic pole in the center of the polar orthotropic plate and linear orthotropic part near the periphery of the plate. so a transition area must exist between the pole and the periphery. this can result in the inhomogeneous property of the circular plate in fact
理論上,極正交各向異性圓板的中心點是一個各向同性的極點,而遠離中心點的部分為直線正交各向異性,因此,在這個中心點到直線正交各向異性部分之間必然存在一個過渡區域,這就導致了實際的各向異性圓板的不均勻性。With the trait of power split and movable axis as well as application of inner meshed gear, planetary gear transmission has many advantages compared with general fixed axis gear transmission system. however, these advantages can not be realized without the balance of the load between planet gears
行星齒輪傳動具有功率分流和動軸線的運動特點,以及內嚙合的合理運用,使其相對于普通定軸線齒輪傳動在技術和經濟上具有很多優點,但如果行星輪間載荷不均衡,則這種優點就難以實現。The latest results show the distribution of the - ray burst sources is isotropic but nonuniform and indicate the sourses locate at the cosmological distance. this paper introduces the observational properties and classification of grb, and discusses serveral popular models
觀測結果表明,射線爆源空間分佈是各向同性但不均勻的,說明射線爆起源於宇宙學距離.本文介紹射線爆的觀測情況和分類,並討論了幾種當前比較流行的射線爆理論模型Abstract : the latest results show the distribution of the - ray burst sources is isotropic but nonuniform and indicate the sourses locate at the cosmological distance. this paper introduces the observational properties and classification of grb, and discusses serveral popular models
文摘:觀測結果表明,射線爆源空間分佈是各向同性但不均勻的,說明射線爆起源於宇宙學距離.本文介紹射線爆的觀測情況和分類,並討論了幾種當前比較流行的射線爆理論模型4. the non - linear interaction mechanism derived from the scale of system was discussed. the paper deemed that, falling sliding face is not a rectilinear type, the non - linear coupling of falling factors sharply enhanced in large sand - pile ; the stabilization of surface layer sands are different in the time and space, especially the stating probability is higher than halting, and probability of fault in slope foot is higher than top as well ; the faulting forms will be affected by bounder situation strongly
大尺度散粒體坡面的崩塌滑動面,一般並非直線形,在崩塌過程中的耦合作用將增大落沙規模;理想化的沿直線坡面滑動情況,坡面表層砂粒的穩定性也並不是在時間、空間上都均衡的,可以造成起動容易止動難,或坡角失穩概率大從而牽連整個坡面的情況;長大高陡坡面的失穩形式,可以受坡腳(邊界)的巨大影響。Analyzed results of macro observed data showed that the configurations of stratus cloud systems were inhomogeneous, and stratus cloud systems consisted of several single clouds. different clouds were departed by obvious borderline, and the height of cloud top changed between 4 and 8km. the height of 0 level occurred at about 3. 5km height which was meant that super - cold cloud existed
由觀測資料分析可知,河南省春季層狀雲系結構不均勻,雲系由若干個雲塊組成,雲塊之間有明顯的界線,雲頂高度在4 8km之間起伏變化,零度層亮帶高度約為3 . 5km ,雲系存在一定厚度的過冷雲層。There are three key factors baffle the sma processor : context load imbalance, inter - thread control dependence and inter - thread data dependence. to maintain performance boost, the sma compiler must eliminate those factors thoroughly. the work of this paper include : 1 the paper thoroughly investigates execution behavior of various applications on sma architecture
主要的工作與創新點包括: 1研究了sma結構各種主要程序結構的適應性和性能優化特性,確定了sma模型的關鍵性能要素:現場間負載不均衡、線程間控制前瞻失效與線程間數據前瞻失效。The gauss - ray tracing have the dynamic and geometric character. it can compose the record by calculating the high frequency wave in transverse anisotropic medium, avoiding getting the accurate ray path. it is a very steady and effective method with little calculation time and a good precision
高斯射線束正演包括地震波運動學特徵和動力學特徵,能有效的計算橫向上不均勻介質中高頻體波的合成紀錄,避開了精確求取兩點射線路徑,大大減少了計算的時間,同時又具有較高的精度,是一個很穩健有效的方法。Abstract : a bandgap voltage reference is presented with a piecewise - linear compensating circuit in order to reduce the temperature coefficient. the basic principle is to divide the whole operating temperature range into some sub - ranges. at different temperature sub - ranges the bandgap reference can be compensated by different linear functions. since the temperature sub - range is much narrower than the whole range, the compensation error can be reduced significantly. theoretically, the precision can be improved unlimitedly if the sub - ranges are narrow enough. in the given example, with only three temperature sub - ranges, the temperature coefficient of a conventional bandgap reference drops from 1. 5 10 - 5 / to 2 10 - 6 / over the - 40 to 120 temperature range
文摘:提出了一種採用分段線性補償的方法來實現高精度帶隙基準,其基本原理是將整個溫度區間分為若干個子區間,在不同子區間上採用不同線性補償函數達到最佳補償.由於溫度區間縮小,補償誤差也隨之減小,從而在整個工作溫度間上的補償誤差也縮小.理論上,只要溫度子區間取得足夠小,就可以達到任意精度.示例中將- 40 120的溫度區間僅分為三個子區間,平均溫度系數就從1 . 5 10 - 5 /減小到2 10 - 6 /The tensile stress - strain curves of composites were also simulated. based on the energy equivalence principle, the formula that could predict the modulus of elasticity of sfrmmc was educed by considering the effects of thermal residual stresses and fiber ' s orientation. calculating and analysis indicate that the thermal residual stresses in sfrmmc are spatially non - uniform
計算和分析表明,金屬基復合材料中熱殘余應力的分佈是空間不均勻的,對復合材料的力學行為產生明顯的影響,與不考慮熱殘余應力相比,其模擬的復合材料應力?應變曲線與實驗曲線吻合得較好。分享友人