characteristic variables 中文意思是什麼
characteristic variables
解釋
特徵變量- characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
- variables : 變量
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But the most important characteristic - and the one likely to be concretely useful - is the elimination of side - effects or at least their containment to special areas like monads. a very large percentage of program errors - and the problem that drives programmers to debuggers - occur because variables obtain unexpected values during the course of program execution
類（或其實例）中，能收集一些數據- -可以以任意順序- -一旦獲得了所需的所有元素，就能調用這一對象的方法來完成這一大批數據的計算。 -
2. according to the characteristic of airborne gravity survey, several statistic variables are derived from theory of probability and mathematical statistics combined with knowledge of errors principles. these statistic variables are applie to the significance test of systematic errors in every surveying line
2 、根據概率論和數理統計的理論與方法及誤差理論，結合航空重力測量的特點，建立了有關檢驗統計量，並將其應用於航空重力測量測線系統誤差的顯著性檢驗。 -
Furthermore, these ics span the characteristic space of normal operating condition ( noc ), and the changes of coefficients matrix are monitored which are obtained by projection of process variables onto the space of noc
進一步地，這些獨立成分構成了正常工況的特徵空間，過程變量在該空間上投影系數矩陣的變化被作為監控指標。 -
One significance of the eigenvectors is seen to be that they determine the values of the state variables in a characteristic mode.
本徵矢量的重要意義之一是，它們決定了在一定模態中狀態變量的相對值。 -
Then, because the raw - material mill system has the characteristic of many variables and non - linear, the author studies and models the system with the theory of neural network.
第二，針對生料磨系統具有多變量、非線性等特點，運用了bp神經網路理論對系統進行了建模與研究。 -
Based on the mathematic model of oct, it is proved that oct is of the open loop characteristic, which for the first time explained the reason why oct itself can not meet the demand of precision used in practice. since it is impossible for oct itself to realize a close loop structure, the only way to improve the precision of oct is with the help of the new independent variables
從模型化分析出發，在基於光學電流傳感原理的oct的完整數學模型和系統特性方框圖的基礎上證明了oct的開環機理，首次從理論上解釋了外界因素導致光學電流傳感的測量精度始終達不到實用化要求的原因在於oct具有開環系統特性，而且，從oct本身是不可能實現閉環結構的。 -
Some variables regional distribution over south ningxia is given out in the course of evapotranspiration estimation : the regional distribution of surface characteristic parameters ( normalzed difference vegetation index, surface albedo, surface temperature ), radiation balance components ( surface absorbed shortwave radiation, surface longwave radiation, atmospheric counter radiation, net radiation ), surface heat and balance components ( soil heat flux, sensible heat flux, latent heat flux )
估算區域蒸發（散）量的過程中，得到許多有意義的量：地表特徵參數（植被指數ndvi 、地表反射率、地表溫度） ；地表輻射平衡各量（地表短波吸收輻射、地表長波輻射、大氣逆輻射、地表凈輻射） ；地表熱量平衡各量（土壤熱通量、顯熱通量、潛熱通量） 。 -
As regionalized variables, the contents of sic and of soc had the characteristic of structure as well as random
土壤無機碳和有機碳作為區域化變量，既有隨機性又有結構性。 -
On the other hand, quite a number of practical systems with numerous dimensions may have some fast variables taking on singular impulse characteristic, such as electric power system, control system of rolling mill assembly, biochemical process, nuclear reactor, control system of airplane and rocket, and chemical diffused reaction, etc. so, it is important to study the problem of robust control of singular system i n the domain of control theory
一般這些不確定性並非不可度量的，通常能給出這些不確定性大小的某種約束，魯棒控制理論正是處理系統模型具有不確定性的有效方法。另一方面，在大多數維數很大的實際系統中，都有呈現奇異攝動特性的快變變量，如電力系統，冷軋機的工業控制系統，生物化學過程，核反應堆，飛機和火箭系統，以及化學擴散反應等。 -
So the conceptions of " characteristic variable " and " characteristic model " are presented here, and with them as a clue, the paper focuses on collecting and summarizing the characteristic variable which can indicate system ' s state and performance, physical meaning of the variables are discussed also. the characteristic variable includes : stability - monitoring variable, characteristic variable based on time - domain performances, output waveform variable, parameter variable and circumstance variable
為此，本文提出特徵量和特徵模型的概念，並以此為思想主線，重點研究了能夠表徵系統性能的特徵量及其意義，引入了系統穩定性監控的特徵量、與控制指標相關的特徵量、輸出波形特徵量、參數特徵量及環境特徵量。 -
In this paper, the near - infrared spectral measurement and principal component analysis ( pca ) of simulated spilled petroleum samples are made, the princpal component scores are taken as the cluster characteristic variables for making fuzzy clustering, the near infrared spectrometry and pca together with fuzzy clustering method are then used for rapid recognition of simulated spilled oils, and the sample clustering and recognition patterns are established
摘要對模擬溢油的石油類樣品進行近紅外光譜檢測並進行了主成分分析，以主成分得分作為聚類的特徵變量進行模糊聚類，採用近紅外光譜測量結合主成分分析和模糊聚類法快速識別模擬溢油種類，並建立了樣品聚類與識別模型。 -
According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。 -
In third part the author has adopted logistic model to analyze how the characteristic variables of rural inhabitants in city of fenghua influence land transfer. then based on the investigation of will, the way and scale of land transfer have been analyzed, and finally the influences that the behavior of land transfer made on land system have been studied
第三部分利用logistic模型分析奉化市農村居民的各種特徵變量對農地流轉的影響，利用意向調查分析今後奉化市農戶土地流轉的方式、規模，進而研究奉化市農戶家庭農地流轉行為及其對農地制度的影響。 -
A new approach of approximate dwell function synthesis for planar six - bar mechanism is presented in the dissertation, which transforms the synthesis of planar six - bar mechanism to the synthesis of two - bar linkage, reduces the variables to four, by selecting all dimensions of the four - bar mechanism in advance. then, based on constraint curves of characteristic points of mechanisms, the characteristic points on the float link can be certained. as a result, unified model of dwell function synthesis of planar six - bar mechanism is set up
本文提出了一種實現平面六桿機構間歇函數綜合的簡化優化方法，將多維優化轉化為四維優化；從工程實際出發，運用連桿機構運動幾何學、數學規劃和計算機數值計算和圖形顯示技術等學科的理論成果，對平面六桿機構間歇函數綜合進行了深入系統的研究，建立了平面六桿機構間歇函數綜合的理論和方法，並給出了相應的算例。 -
Dynamic causality diagram was first proposed by professor zhang qin in 1994, it is a mathematics tool combined with probability and graph theory, just like the belief network, its characteristic is to provide the method of uncertain knowledge representation and agility reasoning, it adopts nodes to represent random variables in the domain and directional edges between nodes to represent causal relationship between variables, linkage intensity to represent the strength of the link between these variables, it supports the forms of reasoning from cause to effect and from effect to cause and together
動態因果圖由張勤教授1994年提出，它與信度網類似，是概率論與圖論結合的一種數學工具，其特點是提供不確定知識的表達和靈活的推理方法:用節點表示事件或變量，有向邊表示因果關系，並用連接強度來表示因果關系的強度，支持由原因到結果的正向推理方式和由結果到原因的反向推理方式以及正反向混合推理方式。 -
Firstly, the structure ' s geometrical design parameters are expressed with the discrete design variables. secondly, the structure ' s mechanical model that based on the elastic material mechanical characteristic and a certain enclasped state and enclasped thinking of multi - layers " shell is established
首先給出描述組合圓筒裱糊裝配結構幾何狀態的幾何特徵參數的定義，以及幾何特徵參數與設計變量即彈性墊層厚度之間的幾何關系。 -
This method is based on ito stochastic differential equation which provides the statistical characteristic of the state variables
此研究方法是以伊藤隨機微分方程式為主。 -
Abstract : according to the characteristic of hybridize and sudden change of binary coding chromosome in classical genetic algorithm, this paper defines the rule of hybridize and sudden change of continuous variables. the method is noted for easy to operate and quite good to approach the best true solution in overall situation. by means of three computed examples of nonlinear optimization and quadratic programme problem, it confirms that the method has strong adaptability and can precisely determine the best solution, in overall situation
文摘:根據傳統遺傳演算法中對於二進制編碼染色體的雜交和突變的特點，定義了連續變量的雜交、突變規則.此方法有操作簡便，可較好地逼近全局最優的真實解的特點.通過非線性優化和二次規劃問題的3個算例，證實本演算法適應性強，可較精確地確定全局最優解
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