physical variation 中文意思是什麼

physical variation 解釋
效能差異
  • physical : adj 1 物質的,有形的,形而下的 (opp psychical spiritual mental moral); 確鑿的;外界的。2 身體的...
  • variation : n 1 變化,變動。2 變量,變度,偏差。3 【語言】語尾變化;變體,異體;【數學】變分,協變;順列;【...
  1. Analysis of diurnal variation and physical character of pm10 in nanjing urban atmosphere

    南京城區可吸入顆粒物日變化特徵及物理特性
  2. Finally, two - dimensional wave - motion equations of the finite deformation elastic rod are derived by variation principle taking simultaneously geometrical and physical nonlinearity into consideration

    最後,利用變分原理又導出同時考慮幾何和物理非線性的有限變形彈性桿的二維波動方程。
  3. Based on the hydrodynamic energy transport model, the influence of variation of negative junction depth caused by concave depth on the characteristics of deep - sub - micron pmosfet has been studied. the results are explained by the interior physical mechanism and compared with that caused by the source / drain depth. research results indicate that with the increase of negative junction depth ( due to the increase of groove depth ), the threshold voltage increases, the sub - threshold characteristics and the drain current driving capability degrade, and the hot carrier immunity becomes better in deep - sub - micron pmosfet. the short - channel - effect suppression and hot - carrier - effect immunity are better, while the degradation of drain current driving ability is smaller than those with the increase of depth of negative junction caused by source / drain junction shallow. so the variation of concave depth is of great advantage to improve the characteristics of grooved - gate mosfet

    基於能量輸運模型對由凹槽深度改變引起的負結深的變化對深亞微米槽柵pmosfet性能的影響進行了分析,對所得結果從器件內部物理機制上進行了討論,最後與由漏源結深變化導致的負結深的改變對器件特性的影響進行了對比.研究結果表明隨著負結深(凹槽深度)的增大,槽柵器件的閾值電壓升高,亞閾斜率退化,漏極驅動能力減弱,器件短溝道效應的抑制更為有效,抗熱載流子性能的提高較大,且器件的漏極驅動能力的退化要比改變結深小.因此,改變槽深加大負結深更有利於器件性能的提高
  4. Energetic materials for defense - physical - chemical analysis and properties - volume variation measurement in a tensile test by farris gas dilatometer

    軍用高能材料.物理化學分析及特性. farris氣體膨脹計測量抗拉試驗中體積的變化
  5. The cmr materials have complex physical properties. some phenomena of the lacamno3 films are discussed, such as the effects of mismatch between the substrates and the films, the variation of the resistance of films under different bias currents. and the effects and improvements are discussed with details after the films are annealed in high temperature and high oxygen pressure

    超巨磁電阻材料有著復雜的物理性質,我們對lacamno _ 3薄膜材料所表現出來的一些現象進行了討論,如應力變化對薄膜性質的影響、不同偏置電流與薄膜電阻變化的關系等,還特別討論了薄膜在高溫、高氧壓環境中退火所帶來的影響以及薄膜性質的改善。
  6. It sets up a evaluated system by analyzing groundwater chemical components, through studying pertinence in water chemical component and soil strength, it also puts forward that water chemical change can map soil strength variation under water - soil interaction. from the theory of the water - soil interaction on, the interrelation of city construction, the variation of groundwater condition and the soil structure strength is analyzed and that the measure of soil structure and the significance which is by the water - soil interaction is studied in this paper. at the same time, in the paper : the recourse of the soil structure strength is summarized ; the physical meaning of soil mini - scale structure is defined ; the measure of soil structure is classified ; the four basis forms of the water - soil interaction is induced ; the chemistry mechanism of the water - soil interaction is discussed

    通過水化學組份與土強度間的相關性分析,提出水化學組份的變異可以映射水土作用下土強度的變異;從水土作用的理論出發,分析了域市建設、地下水環境變異與土結構強度間的相互關系,研究了土的結構尺度及其在水土作用中的意義:總結了土的結構強度的來源、定義了土細觀結構的物理涵義井劃分了土的結構尺度及層次、歸納了水土作用的四個基本形式、討論了水土作用的化學作用機理。
  7. Based on the field - measured data and physical model test data, hydraulic elements of the shiwutan beach in hongshui river is analyzed, and factors of hydraulic elements variation and obstacles to navigation are discussed

    摘要根據實測及物理模型試驗資料,分析了紅水河十五灘灘段的水力要素變化,探討了灘段水力要素變化及產生礙航的原因。
  8. This dissertation is about one - year ' s study of fuzhou ' s inner river in community ecology of zooplankton, which evaluated the water quality of this river through the analysis of the structure variation of its zooplankton community and combining with the physical and chemical indexes, then may give some suggestions to the rational and efficacious measures of fuzhou ' s inner river management

    對福州內河進行為期一周年的浮遊動物群落生態研究,以期利用浮遊動物群落結構變化,結合理化指標對福州內河進行水質綜合評價,為福州內河合理、有效的治理提供基礎資料。
  9. It was found that the soil physical properties had significant spatial variability in the catchment scale because of the joint - influences of land use, topography, physiognomy, and other factors. the spatial variation is small for field capacity, moderate for wilting moisture and bulk density, and great for saturated soil moisture

    受地形地貌和土地利用等因素的綜合影響,土壤物理性質在流域尺度內存在顯著的空間變異,飽和含水量的空間變異性最大,土壤萎蔫濕度和土壤容重居中,田間持水量空間變異最小。
  10. According to the analyses of the research results about the feasibility of 4 - d seismic and the successful 4 - d seismic cases of foreign companies, the author put forward the suggestions for 4 - d seismic pilot area selection ; briefly analyzed the influential function of producing way on the seismic response ; utilized theory calculation, coring data analyses, and reservoir numerical simulation to define the fluid substitution effects on the p - wave velocity. through long time water driven to the reservoir, some of the properties and the log curves have changed, the author tried to find the variation rule of the reservoir and its effects on seismic velocity. the " blind point " in 4 - d seismic feasibility study both in china and overseas was found, that is the lack of consideration of the influence of physical property variation by long time water driven on the seismic response

    在深入分析國外四維地震可行性研究成果和成功實例的基礎上,提出了有利於水驅四維地震成功的工區優選條件;簡要剖析了各種開采方式及其對地震特性的影響;利用理論計算、巖心分析、油藏數值模擬三種方法確定了流體替代對縱波速度的影響;通過對長期水驅造成的物性參數、測井曲線以及油藏溫度和壓力變化規律的總結,分析了這些變化對地震速度的影響,指出了目前國內外水驅四維地震可行性研究中存在的盲區?沒有充分考慮長期注水造成的物性、溫度和壓力變化對地震響應的影響,完善了水驅四維地震可行性研究的內容;在考慮了這些變化因素后,高29斷塊水驅四維地震可行性研究結果表明:四維地震監測注水前沿可能要比監測油藏變化容易的多;以四維地震巖石物理可行性研究結果為基礎,提出了五個有助於突出四維地震造成的微小差異的途徑,為今後水驅四維地震研究指明了方向。
  11. According to the analytic results of transient heat conduction in semi - finite object, the macroscopic physical behavior on heat flux and temperature variation were investigated

    根據半無限大物體的瞬態熱傳導問題的解析結果,對瞬態熱傳導過程中熱流傳遞與溫度變化的宏觀物理行為進行了研究。
  12. On the variation law of mr signal in the biochemical and physical process of cerebral hemorrhage

    信號在腦出血生化與物理過程中的變化規律
  13. The salamanders follow normal space marine tactical and strategic dogma, with a slight variation to compensate for their own physical and mental traits

    火蜥蜴軍團的戰略和方針與其他的星際戰士大抵相同,除了某些適應於他們自己的生理和心理的方略而已。
  14. 3 ) the sandbody distribution, physical properties, pore structure and heterogeneities are affected by the microfacies. at the center part of underwater distributive river course, the petrophysics and physical properties are both better than that at the edge of the microface. 4 ) the chang 61 2 - 3 substrata and the substrata of chang 62 " member which show the better porosity, permeability, and better pore structure ; display lower permeability variation coefficient, dart - coefficient and contrast - coefficient and good connecting sandbody so the horizontal heterogeneities is weaker ; whereas manifest stronger inner - heterogeneities due to the numerous intermediates ; present stronger inter - heterogeneities caused by the greater frequency of sandbody

    長6儲層中長6 _ 2 ~ ( 1 - 3 )和長6 _ 2 ~ 1砂層中的各個小層的孔隙度、滲透率值、含油性較好;平面非均質性較弱,表現為級差、突進系數、變異系數較低且砂體的連片程度高,鉆遇率和連通系數較高;與此同時,層內非均質性較強,表現為垂向上夾層的數目較多,厚度較大;層間非均質性也較強表現為分層系數較高。
  15. Abstract : the physical significances of the reaching law parameters and the qualitative relationships among them in variable structure control ( vsc ) are analyzed. according to the relationships, a reaching law control method is put forward based on fuzzy rules. to improve control quality, the reaching law parameters are selected by fuzzy rules. the control scheme presented in this paper not only preserves the advantages of traditional reaching law control, that is, insensitivity to any variation and perturbation of the plant parameters, but also possesses the adaptation to control quality of variable structure control systems. the simulation results show the chattering in vsc systems is highly reduced

    文摘:分析了變結構控制設計方法中趨近律參數的物理意義及參數之間的定性關系,根據這些參數的定性和不精確關系,提出了基於模糊規則的趨近律控制? ?模糊趨近律控制,即用模糊規則來選擇趨近律的參數,以達到改善品質控制的目的.模擬結果表明,筆者給出的方法既保留了傳統趨近律方法所具有的較強魯棒性優點,又使控制系統的品質控制具有較強的自適應性,同時還比傳統趨近律方法更有效地削弱變結構控制系統中固有的顫振
  16. Utilizing the scanning electron microscope, x - ray diffractometer, type 9310 microporosity analyzer, the microstructure and chemical composition of mudston, and its macro - variation of physical and mechanical character are measured and analysed, the mechanism of mudstone degradation and softening in water is systematically studied in this paper

    以掃描電子顯微鏡、 x射線衍射儀、 9310型微孔結構分析儀等先進的設備為測試手段,從泥巖的微觀結構及物質組成等方面入手進行研究,結合泥巖遇水后宏觀物理-力學性質的變化規律,全面闡述了泥巖遇水的崩解軟化機理。
  17. Reservoir physical property variation features after steam injection for thermal recovery of the heavy oil reservoir at shengli petroliferous province

    勝利油區稠油油藏注蒸汽熱采后儲層物性變化特徵
  18. Some authors use the term "variation" in a technical sense, as implying a modification directly due to the physical conditions of life.

    有些學者以為變異這一名詞的專門意義,是指那種由生活的物理條件所直接引起的變異。
  19. Basing on dalian specialized ore terminal engineering, through physical model experiment, the function of vessel under the action of wave, tide and wind to wharf structures is tested, variation law of vessel ' s motion when berthing and mooring at different angles of wave and tide and cable ' s tensile force are given

    以大連礦石專用碼頭工程為背景,通過物理模型試驗,系統測量了波浪、潮流、風等動力要素耦合作用下的船舶對碼頭結構、系纜設施及護舷的作用;給出了波浪和潮流不同夾角時船舶系靠泊狀態下的運動量及纜繩拉力的變化規律。
  20. The dissertation was relied on the project of national nature science foundation project formation and failure of hard crust on the subaqueous delta of yellow river ( contract no. 141720888 ), and objective to research dynamic variation of engineering geological environmental factors i. e., topographic and morphologic features, composition and structure, physical and mechanical properties on the subsurface of yellow river delta, that was induced by wave loading action

    本學位論文以國家自然科學基金面上項目「黃河口水下斜坡硬殼的形成與破壞」 (項目號: 141720888 )為依託,旨在研究波浪作用導致的黃河三角洲表層工程地質環境要素,即形貌特徵、物質組成、物理力學性質的動態變化過程。
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