threshold value 中文意思是什麼
threshold value
解釋
毒性極限-
Nothing happens until the excitatory stimulus exceeds a certain "threshold" value.
興奮性刺激超過某一臨界值以前毫無反應。 -
After scanning the object image and labeling the connected component, the background and foreground noise could be removed easily by threshold value area expunction
該方法僅需對圖像作一次全掃描即可標記物體所有連通部分，統計標識號，根據閾值面積消除法即可快速去除圖像中所有前景和背景噪聲。 -
The threshold value of soil water contents for photosynthesis and stomatal resistance is about 14 ( 0g ), i. e., 60 65 of field capacity
棉花的光合速率和氣孔阻力隨土壤含水量變化的閾值約在14土壤含水量水平，該閾值相當於田間持水量的60 65 。 -
In course of auto - focusing, the paper takes the sum of the square of gray difference as focal distance evaluation function to decided that image is in focus or not quickly and put forward an effective auto - focus searching way based on threshold value and curve fitting. these improve speed and precision of auto - focusing
在自動聚焦過程中，論文採用了圖象的灰度差分的絕對值之和的平方作為焦距評價函數，解決了是否正確聚焦的快速判斷問題；採用了一種行之有效的基於閾值和曲線擬合的自動聚焦搜索方式，使聚焦速度和精度都得到了很大的提高。 -
The paper introduce detailed the method to decide the threshold value, and set forth the method to test the believing interborough of division result in theory
本論文在研究區研究過程中詳細的介紹了危險度等級閾值確定的方法，並對檢驗區劃成果的置信區間作了理論上闡述。 -
The effects of air ' s absorption of heat, scatter, turbulent and thermal blooming on the laser beam transmitting under the air breakdown threshold value are analysed when laser transmit in the air and the result can be used designing of the laser system
摘要系統分析了激光在大氣中傳輸時在擊穿閾值以內，由於大氣汽溶膠的吸收、散射、大氣湍流、大氣熱暈等線性非線性問題對光束控制系統的影響，為激光系統提供指導。 -
Macroeconomic fluctuation impact on the companies " earnings significantly, therefore the business cycle fluctuations will affect the companies ’ asset value fluctuations. according to morton ’ s asset value model, if the asset of company is less than a specified threshold value, the company ' s
結合我國金融體制改革，得到結論是，中國的金融壓抑和信貸配給再加上政府對銀行經營活動的控制，造成了違約率循環和經濟周期波動項之間的同向關系。 -
The method combining local ga with global ga optimizes the performance of visual servoing system. first, target recognition preprocess is carried out by global ga. after the fitness value reaches a certain threshold value, the global ga will
主要通過全局ga完成目標檢測的預處理，當適應度值達到一定的閩值以後，它將切換到局部ga來進行一個更為精細的和快速的目標識別。 -
This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored
二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論，特別對利用空間信息進行閾值選取進行了詳細論述；在對通過對基於數學形態學的細化的基礎上，討論序貫同倫形態細化演算法和保形的快速形態細化演算法；然後依據聯機字元識別原理框圖，分析了手寫數字的結構特點，提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級分類器任意手寫數字在線識別技術，對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述；繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究，對基於最小距離分類器字元識別、基於樹分類器的字元識別、基於自適應共振（ art ）網路的字元識別分別進行了詳細討論，並引入置信度分析將多個分類器進行了混合集成；最後簡單闡述了手寫數字識別的典型應用，對其在大規模數據統計、財務、稅務、金融及郵件分揀中的應用進行了探索。 -
Before the bp neural net forecast fire size class, it needs a process of studying from sample data. the neural net adjusts the weight value and threshold value according to the sample so as to give the linking weight value and threshold to low the difference between output from itself and the expected value
Bp網路在應用於預測預報之前，需要一個網路學習過程，網路根據輸入的訓練（學習）樣本進行自適應、自組織，確定各神經元的連接權w和閾值。 -
The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k
摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。 -
Because of their fine extinction ratio and high anti - light - damage threshold value, laser - polarizing prisms are popular among workers in science and technology field
激光偏光棱鏡，以其優良的消光比性能和高抗光損傷閾值性能，倍受科技工作者歡迎。 -
Article 7 before the start of construction projects, construction units shall, in accordance with the relevant provisions of the state, apply to the competent construction administrative departments under the prefecture - county governments or above for construction licenses, except for small projects below the threshold value set by the competent construction administrative department under the state council
第七條建築工程開工前，建設單位應當按照國家有關規定向工程所在地縣級以上人民政府建設行政主管部門申請領取施工許可證；但是，國務院建設行政主管部門確定的限額以下的小型工程除外。 -
In order to study the problem of the optimum of the probability threshold value, we use two ways in markov to solve the problem
為研究概率閾值最優化的問題，利用馬爾可夫策略，採用兩種方法求解最優策略。 -
Theoretically, the deformation of the fiber macro - bends forced by the shape memory alloy wire has been analyzed as the temperature over the acting threshold value of the sma. experimentally, a series results are obtained under the condition of the temperature changed from 60 to 89
本文理論和實踐兩方面證明了分散式光纖溫度閾值傳感系統作為火災監測系統的可行性，並給出了不同溫度下的實驗結果，對實驗結果進行了分析和討論。 -
It has such feathers as multi - resolution, constant relative bandwidth, and the ability to indicate the local features of signal in time and space. after wavelet transform by using proper wavelet basis functions, the epileptic waves can be separated at different scale, then we can detect the epileptic waves by using the wavelet transform result at the proper threshold value
本文選取適當的小波函數，將信號進行連續小波變換，把腦電信號中的癲癇特徵波在不同的尺度下分離出來，然後選取特定尺度下的變換結果，通過閾值判定方法對棘波進行檢測。 -
This paper stuffed with twelve important grain and vegetable crops, studied the injury symptom, dose reaction, injury threshold value and influential factor of main pollutant so2 on various plants, tested the dynamic transformation of pod, cat, mda, soluble protein, free pro and chlorophyll of resistant plant and sensitive of these physiological biochemical transformation with plant resistant ability. meanwhile, simply studied the protective role of the five compounds on plant. the result indicated the followings
本實驗以12種重要的糧食和蔬菜作物為研究對象，研究了主要大氣污染物二氧化硫（ so _ 2 ）對不同植物的傷害癥狀、劑量反應、傷害閾值以及影響因素，測定了抗性和敏感植物在受到so _ 2污染后植物體內過氧化物酶（ pod ） 、過氧化氫酶（ cat ） 、丙二醛（ mda ） 、可溶性蛋白質、游離脯氨酸和葉綠素的動態變化，並分析了這些生理生化變化和植物抗性的相互關系，同時還對5種化合物溶液對植物的保護作用進行了初步研究，結果表明： 1 -
Substrate negative bias voltage deeply impacts the nucleation and growth of cbn. there is a threshold value of bias voltage for depositing cbn
襯底負偏壓對立方氮化硼的成核和生長有十分重要的影響，存在偏壓閾值，低於該值不能產生立方氮化硼。 -
6. the plant is comparatively sensitive in two leaves period. so we can use the dose reaction to so2 in two leaves period as the injury threshold value to classify resistant ability type
6 .植株在2片真葉期對50 :比較敏感，因此可以採用植物在2片真葉期對50 :的劑量反應作為受害閡值來劃分抗性類型。 -
As the injection current is increased above the threshold value (10. 7-24), the laser oscillation intensity builds up.
當注入電流增加到由式（107-24）表示的閾值以上時，激光振蕩強度就會增長。
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