function value

"function value"的翻譯和解釋

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The total function value of the hvcb can be got through recursion operation with the unitary formula . the fuzzy comprehensive evaluation way based on the catastrophe theory , combining all kinds of parameter which indicate the circuit breaker status . it provide a new way for evaluationg the operation status of the hvcb
基于突變理論的高壓斷路器運行狀態(tài)模糊綜合評估方法,將表征高壓斷路器運行狀態(tài)的各種參數(shù)有機的結(jié)合起來,為高壓斷路器的運行狀況的綜合評估提出了一種新思路。
Marching cubes ( mc ) algorithm and marching tetrahedra ( mt ) algorithm are introduced . this dissertation chooses mt algorithm to extract zero isosurface in order to avoid ambiguity of mc algorithm . in accordance with the intersection feature between isosurface and voxel , this dissertation improves mt algorithm and proposes nine configurations of distance function values of tetrahedron vertices
分析marchingcubes ( mc )算法的二義性，選擇marchingtetrahedra ( mt )算法進行“ 0 ”等值面的抽??；并根據(jù)等值面與體素相交的特點，對mt算法進行改進，提出四面體的頂點9種分布情況。
In this paper , two major types , the natural vegetation and crop vegetation in luota are studied . we can gain the different distributive area by remote sensing technology , in accordance with conifer forest , broadleaf forest , thick shrub forest , shrub forest , herbs shrub forest , herbs naked rock and crop vegetation . the valuation of the output of standing trees , water conserbancy , soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388 . 8 hm2 is estimated up to 18 . 36 million yuan per annum . the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest , conifer forest , conifer and broadleaf forest , broadleaf forest , scatteredtree - shrub forest , coppice - shrub forest , herbs shrub forest , econamic crop and cereal crops . the plant resources is valued according to the ornamental and green plant . lumber trees and medical plant . ornamental plant includes hosta plantaginea . lilium brownii van viridulum , spiraea cantomiensis and so on . lumber tuees includes zzzelkova schneideriana , emmenopterys henryi , catalpa fargesii and so on
本文把洛塔現(xiàn)存植被分為自然植被與栽培植被兩大類進行研究，通過遙感技術(shù)對現(xiàn)存植被按針葉林、闊葉林、密灌、灌叢、草灌、荒草裸巖、農(nóng)作物植被等類型進行分布面積的統(tǒng)計，在此基礎(chǔ)上，以林產(chǎn)品價值、涵養(yǎng)水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據(jù)，對已成林的針葉林與闊葉林進行森林生態(tài)系統(tǒng)的價值估算，得出面積為1388 . 8hm ~ 2的針葉闊葉林的森林生態(tài)價值為1836 . 37萬元，參照這一生態(tài)價值量，把洛塔植被按常綠落葉林、針葉林、針闊混交林、闊葉林、疏林?灌叢、矮灌叢、荒草灌叢、經(jīng)濟作物和糧食作物，以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。
2 ) based on the invariability ( or approximate invariability ) of function value , we give out the definitions of intent reduct ( or approximate intent reduct ) and intent core ( or approximate intent core ) of concept node , investigate their properties in detail , and prove that the problems of computing them can be transformed into the problem of computing the minimal cover of a family of sets
2 ）在函數(shù)取值不變性（或近似不變性）的基礎(chǔ)上，提出了概念節(jié)點的內(nèi)涵縮減（或近似內(nèi)涵縮減）和內(nèi)涵核（或近似內(nèi)涵核）的概念，詳細地研究了它們的性質(zhì)，證明了它們的計算問題都可以等價地轉(zhuǎn)化為族集最小覆蓋集的計算問題。
With difference from the way that traditional methods perform by accumulating the frequency of keywords . we propose a new metrical function that employs the rs - based entropy by comparing function values to measure the feature of web pages . besides , according to the unstructured and heterogenous characteristics of www , the effect of hypertext tags to keywords " weigh has been taken into account to obtain the most effective keywords for document classification
有別于傳統(tǒng)的對關(guān)鍵字頻度進行累加的方法，本文提出了基于信息熵的文本關(guān)鍵詞測度函數(shù)，通過對關(guān)鍵詞函數(shù)值進行比較，獲取對文本分類最具影響性的關(guān)鍵詞序列；同時，針對web上異質(zhì)、非結(jié)構(gòu)化信息的特點，該分類算法還考慮了超文本標記對關(guān)鍵詞權(quán)值的影響。
Chinese academics for ngo research began in the late 1990s , and they are affected by various factors , most of which are focused on the ngo ' s role , function values , operation mechanism . the research for foundations as the important form of ngo has only just started , and the special legislative study of foundation is even little
我國學界對于非政府組織的研究始于上世紀九十年代中后期,受各種因素的制約,多數(shù)都集中于對非政府組織的角色定位、功能價值、運行機制等方面,對基金會這一重要組織形式的研究剛剛起步,對基金會立法問題的專項研討更是不多。
In section one , based on theory of n dimensional euclid space , a new method labeled as " pointlineplane " recycling optimization algorithm is proposed to solve the linear programming problem . this algorithm is proposed on the basis of the thought as follovvs : as for three dimensional euclid space , the feasible region of any linear programming problem is a extended convex polyhedron , of which surface is consisted of some planes , and its objective function can be regarded as a parallel plane pencil with objective function value acting as parameter
第一部分內(nèi)容是在n維歐氏空間理論的基礎(chǔ)上提出了一種求解線性規(guī)劃問題的新算法? “點線面”循環(huán)尋優(yōu)法，本算法是基于如下思想提出來的：我們知道，在三維歐氏空間中，線性規(guī)劃問題的可行域是一個由若干個平面圍成的廣義多面體，目標函數(shù)可以看作是以目標函數(shù)值為參變量的一個平行平面束。
Secondly , a non - linear mapping function from multiple inputs ( design variables ) to output ( maximum dynamic stress ) is constructed within bp neural networks , in order to obtain the constraint function values that are necessary in optimum design of structures using genetic algorithms and get the optimum solutions . the generation ability of the bp network after training can be used to replace the calculation of fem , which makes the constrained optimization to be possible
其次，由于動應力的有限元法計算過程復雜，計算量巨大，在應用優(yōu)化算法時，需要反復計算，為了使優(yōu)化過程可行，設(shè)計了bp神經(jīng)網(wǎng)絡(luò)，利用有限元計算的樣本數(shù)據(jù)建立起結(jié)構(gòu)設(shè)計參數(shù)(輸入)與動應力(輸出)的非線性映射關(guān)系，從而代替有限元法，快速計算結(jié)構(gòu)動應力。
Two - stage - fitting ( tsf ) method is obtained , which consists of evaluating the function values of regular - grid points by using local weighted least square methods or radial function interpolation , and smoothly and quickly interpolating those points by using multivariate splines . the result is a hyper - surface of c1 or c : continuity
基于上述結(jié)果，提出了h - d空間散亂數(shù)據(jù)超曲面構(gòu)造二步法，第一步應用局部最小二乘法或局部徑向基函數(shù)擬合法插補立方體網(wǎng)格點上的函數(shù)值，第二步應用多元樣條光滑快速插值計算，使所得超曲面具有c ~ 1或c ~ 2連續(xù)。
A non linear mapping function from multiple input data ( damage parameters - damage locations and damage extents ) to multiple output data ( differences of displacements between damaged structure and intact structure calculated by fem ) is constructed within bp neural networks in order to obtain the objective function values that are necessary in identification of the damages in bridge structures using genetic algorithms and get the optimum damage parameters
摘要利用神經(jīng)網(wǎng)絡(luò)對有限元計算的樣本數(shù)據(jù)建立起橋梁結(jié)構(gòu)的損傷參數(shù)損傷位置、損傷程度（輸入）以及位移差損傷結(jié)構(gòu)與完好結(jié)構(gòu)的位移差（輸出）的全局性映射關(guān)系，以獲得遺傳算法求解橋梁結(jié)構(gòu)損傷問題所需的目標函數(shù)值，從而識別橋梁的損傷參數(shù)。