空變量 的英文怎麼說
中文拼音 [kōngbiànliáng]
空變量
英文
dummy variable-
Study on aerial cable creep deformation test based on dsp
的架空電導線蠕變量測試系統的研究Bifurcation of homoclinicorbits in fast variable space
快變量空間中的同宿軌道分支A rate - dependent damage evolution modified zwt nonlinear constitutive ralation is adopted, an object function of least square was established according to the experimental results. the searching space of each decision variable was foreordained with conventional optimizing method, and all parameters in zwt model for solidified pf resin were determined with generic algorithms
基於實驗曲線構建了最小二乘形式的目標函數，並採用傳統優化方法輔助設計了各個決策變量的搜索空間，進而用遺傳演算法確定了損傷型zwt非線性粘彈性本構關系中的材料參數。The sun lost its heartening power and the sky became grey and somber.
太陽失去了它鼓舞人心的力量，天空變成鉛灰色，陰沉沉的。Is an independent variable and has nothing to do with
是獨立變量，與時空原象The paper is mainly based on geography, ecology, sight ecology, region location theory and system theory. by interpreting the mss remote sensing image of 1970s and the tm remote sensing image of 1980s and the end of 1990s in keerqin sandlot based on background database and expert information, we have achieved the three periods vector data of land desertification of the research area, then we have disposed the data property by using the powerful spatial analysis function of arc / info and achieved the information extraction and analysis supported by arcview and erdas imagine. thus the rule of temporal and spatial variation of land desertification in keerqin sandlot is researched and the blueprint and countermeasures of the prevention and treatment of land desertification in keerqin sandlot are put forward
本研究主要以地理學、生態學、景觀生態學、區位論和系統論為主要理論支持，通過對科爾沁地區20世紀70年代的mss遙感影像、 20世紀80年代和90年代末tm遙感影像進行基於背景數據庫和專家知識的解譯，獲得科爾沁研究區土地沙漠化的三期矢量數據，利用arc / info軟體強大的空間分析功能對屬性進行處理，並在arcview 、 erdasimagine軟體的支持下進行信息提取與分析，研究了科爾沁沙地土地沙漠化時空變化的規律，提出了科爾沁沙地土地沙漠化防治的構想與對策。Application of universal variables to designing deep - space probe orbit
普適變量法在深空探測器軌道設計中的應用Influence of nitrate - n space time differentiation to ch. cabbage nitrate content in black soil
黑土土壤硝態氮時空變異對蔬菜硝酸鹽含量的影響Reveals the objective necessity of the sole existence of absolute reference system 0 : the effect of clock losing and ruler contracting of any material system in motion with respect to 0 is the objective real physical change ( the real effect ) of this material system in motion, and the physical time and space ( the effect of motion ) is the unity of opposites between the external form of relativity correctly described by the special theory of relativity and the absolute internal essence with the objective sole existence of 0 as the basic marking, points out the errors of the general theory of relativity from the results above and the basic facts of gravitational field, and expounds the gravitational field is a real - time hollow field of motion in essence, and the physical time and space is the unity of opposites between mutually perpendicular images of void and real time and space of 4 dimensions each, understanding the absolute essence of the lorenz effect or not is the demarcation line between new and old views of time and space, and sets forth the theoretical gist of the time and space views of unity of opposites and the internal unity among the macroscopic level and straight time and space, the bent time and space in gravitational field, and the superimposed time and space in guantum state
揭示了絕對參照系0唯一存在的客觀必然性：任何物系相對於0的「運動鐘慢、尺縮效應」 ，都是該運動物系客觀上具有蹬真正的物理變化（ 「真實效應」 ） ；進而揭示了物理時空（運動效應）是具有狹義相對論所正確描述了的相對性外部形式和以0客觀上唯一存在為基本標志的絕對性內在本質的對立統一運用上述結果和引力場的基本事實，論證了廣義相對論的錯誤；闡明了引力場本質上是一種實時虛空運動場；揭示了物理時空是互為正交映象的虛實各四維時空的對立統一闡明了對洛侖茲效應絕對性本質的認識與否，是新舊時空觀的分水嶺；闡明了對立統一時空觀的理論梗要和宏觀平直時空、引力場彎曲時空與量子態卷迭時空之間的內在統一性Robust controller design and experiment of turbofan
航空發動機多變量魯棒數字控制器的設計On the theory, the predictive function control method based on the state space is discussed and the simulation results validate the pfc method ' s advantages on robust and anti - jamming comparing with pid method by computer simulation. the application research includes the application of the software of predictive function control ( apc - pfc ) and the software of the multiple - variables predictive control ( apc - hiecori ). the former were applied in the temperature control chlorinating process and ph control in the process of zymolysis of penicillin, the latter were applied in the advanced control of reclaim equipment of lox in china petroleum & chemical corporation yangzi petrochemical co., ltd
本文主要從理論和應用兩方面對預測控制方法進行了研究，理論方面主要是從預測函數控制的基本原理出發，研究了一般情況下的基於狀態空間描述的預測函數控制策略，並通過計算機模擬驗證了pfc演算法比常規pid演算法具有更好的魯棒性和抗干擾性：在實際工業過程的應用上，又分為兩類演算法及軟體的應用，預測函數控制策略及apc - pfc軟體的應用主要以聚乙烯氯化過程的溫度控制和青霉素發酵過程的ph值控制為主，多變量預測控制演算法和apc - hiecon軟體的應用主要以揚子石化公司的液化氣回收裝置先進控制為主。Even so, would explicitly nulling that variable improve performance
即使如此，顯式地賦空變量能夠提高性能嗎？For correctly scoped variables, there is no benefit. but let s look at another version of the
對于在正確的作用域中的變量來說，顯式地賦空變量的確沒用。The whole discussion is further extended in the article " nulling variables and garbage collection " see
更加深入的討論請參見「賦空變量和垃圾收集」這篇文章。 （參見For example, if a run - time error occurs because of an empty variable, you can check the value of a variable
例如，如果因為一個空變量而出現一個運行時錯誤，您可以檢查變量的值。Nulling a variable is simply explicitly assigning null to the variable, as opposed to just letting references go out of scope
賦空變量是指簡單地將null值顯式地賦值給這個變量，相對于讓該變量的引用失去其作用域。Variable just after the method completes. so if the jvm does the equivalent of the nulling for you, how can explicitly nulling a variable ever help
既然java虛擬機可以執行等價于賦空的操作，那麼顯式地賦空變量還有什麼用呢？Staying on the subject of garbage collection, one really fascinating discussion concerned whether there was a performance advantage to explicitly nulling variables
一談到垃圾收集這個主題，總會涉及到這樣一個吸引人的討論，即顯式地賦空變量是否有助於程序的性能。Although explicitly nulling variables should normally have no effect, there are also pathological examples where it could have a significant negative effect on performance
雖然顯式賦空變量一般應該沒有影響，但總有一些反面的例子證明這樣做會對性能產生巨大的負面影響。Without the explicit null assignment, if the object being created is large enough, then eden gets full and the garbage collector cannot reclaim the currently referenced object
如果沒有顯式地賦空變量，而且所創建的對象足夠大，那麼eden就會填滿，並且垃圾收集器就不能收集當前所引用的這個大型對象。分享友人