concave function 中文意思是什麼
concave function
解釋
凹函數-
The graph of a concave function is always below its tangent.
一個凹函數的圖象總在它的切線的下方。 -
This paper referred to the massive domestic and foreign technical material, elaborated in the sheet forming value simulation theory essential technology in detail, points out when analysis sheet forming question should use the big distortion ball plasticity fem and introduce the application characteristic and the function summarizes of the sheet forming simulation software dynaform. secondly, analyzed the cover forming characteristic, simultaneously introduced the influence cover forming factor in detail : such as ramming direction, the craft addendum surface and the material pressing surface, the radius of convex - concave mold, draw bead, pressure strength, blank size and craft margin and so on. and simulates many typical automobiles cover panel with software : such lateral board, back taillight pedestal and storage cover
其次，分析了覆蓋件成形的特點和要求，同時詳細介紹了影響覆蓋件成形的因素如沖壓方向、工藝補充面和壓料面、凸凹模圓角、拉延筋、壓邊力、坯料尺寸和工藝切口等，並用數值模擬軟體對多個典型的汽車覆蓋件汽車后側圍板、后燈座以及轎車后備箱蓋的沖壓成形情況進行模擬，用模擬結果優化拉延工藝方案，比較了內覆蓋件和外覆蓋件在成形特點和要求的一些異同點，以及常見的起皺、拉裂和回彈、成形不足等缺陷的產生機理和相應對策，重點介紹工藝補充面和壓料面的設計及優化方法，因為拉延是沖壓工藝的關鍵工序，而工藝補充面和壓料面的設計是拉延工序的關鍵，對消除缺陷至關重要。 -
In order to calculate difficult transportation cost between plants and distribution centers in the fitness value function, flow prediction algorithm was presented to find an minimum - cost flow patterns on an network composed of plants, consolidation centers and distribution centers with concave transportation costs and to obtain the appropriate fitness value
為了解決適應度函數中的工廠與分銷中心之間的運輸成本計算困難的問題，提出了流預測演算法，用於確定產品在工廠、集貨中心和分銷中心構成的凹費用流網路中的最優運輸路徑，進而獲得適應度函數值。 -
The conclusion based on partial equilibrium analysis in the paper is : in short - run, after works parted inside firms, it can be empirically settled that the returns from specialization keep increasing, but the marginal return coming from specialization still is decreasing. as a result, function of return is concave. with the function of the studying mechanism, transaction cost from work - partition decreases gradually and with faster velocity
本文簡單均衡分析所得出的結論是：在短期內，企業內部生產分工一旦形成，可以經驗的給定專業化收益遞增，而其邊際收益依然是服從遞減規律的，因而為一凹函數：不考慮整個行業或市場的交易費用變化，由於學習機制的作用，這種由分工所帶來的的交易費用將出現遞減，具有更快的遞減速率。 -
This paper gives some equivalent conditions of quasi - concave function
摘要本文給出了與擬凹函數定義等價的幾種條件，並加以證明。 -
The system can automatically evaluate the decolorization of cpt by tracking the position of concave spot. the vibration of aperture grille will affect the display characteristic, and it is difficult to found a correct vibration analysis function because of its complicated structure
對新型的張緊式蔭罩影響顯示屏特性的主要原因? ?振動進行了近似分析，由於蔭罩面結構、類型復雜，難以建立準確的數學振動模型，振動特性難以正確的數學表示。 -
Find the critical number, point of inflection, relative extrema, increasing or decreasing interval, concave upward or downward interval of the function
找出此函數的端點，反曲點，相對極值，遞增或遞減區間，凹向上或凹向下的區間。 -
These methods are lagrange mean - value theorem, monotone function, extreme value of function, taylor formula, concave and convex function
提出六種常用的方法，並指出每一種方法的適用類型、解決問題的關鍵和證明問題的具體步驟，最後結合實例說明方法的可用性。 -
A branch and bound algorithm for solving maximizing a concave function over weakly - efficient
弱有效集上凹函數極大問題的分枝定界演算法 -
This paper discusses a variation equation problem in a class of singular stochastic control with stopping time, gives its solution under two different conditions, which is a one order continuous differentiable and concave function, and gives the exact form
摘要討論了一類帶停時的奇異型隨機控制問題中的一個變分方程問題，並且在兩種不同的情況下給出了該變分方程的解，即為一階連續可導凹函數，並在兩種情況下給出了此函數的具體形式。 -
In the policy system, the policy effect of the political function - main body effect and carrier effect, are further concave
在公共政策體系中，新聞傳播政策政治職能的政策效應包括主體效應和載體效應進一步凸現。 -
Discussing about convex and concave function of nature
性問題的討論 -
Category of concave function
凹函數的范疇 -
The reversible temperature coefficient of magnetic flux of ndfeb - ferrite composite bonded magnets as a function of the content of ferrite is concave downwards, and that of ainico - ferrite magnets as a function of the content of ferrite is convex upwards, the reversible temperature coefficient of magnetic flux of the other four binary composite bonded magnets and its single component follow the pattern of linear relationship
釹鐵硼和鐵氧體復合粘結磁體的磁通可逆溫度系數與鐵氧體含量的關系曲線下凹，鋁鎳鈷和鐵氧體復合粘結磁體的磁通可逆溫度系數和鐵氧體含量的關系曲線上凸，其餘四組復合粘結磁體的溫度系數隨著單一磁粉含量變化基本呈直線關系。 -
The experimental results of power output as a function of the concave mirror transmission and the mirror - waveguide distance basically agree with the corresponding theory
通過實驗研究了輸出鏡透過率及耦合距離對激光器輸出功率的影響，實驗結果與理論基本相符。
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