inherent density 中文意思是什麼
inherent density
解釋
固有密度-
The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method, and the formula can be simplified referring to workpiece shape. according to the anastomotic status of the tool and workpiece surface, we present the new model of the inherent relation among local pressure density, removal rate, convergence ratio and residual errors, and the corresponding formulas are given. the forming cause of the edge effect in the polishing process is analyzed, and the means which reduces the edge effect is put forward
2 、針對計算機控制光學表面成形（ ccos ）的加工方式、誤差收斂特點，研製了去除函數呈高斯分佈的雙轉子結構研拋模；採用脈沖迭代法、平滑因子傅立葉變換法推導出駐留時間的演算法，求解過程中根據工件面形的特點作了各種形式的簡化；提出了工件表面和研拋模的吻合誤差與局部壓強、材料去除率、收斂比之間內在關系的數學模型，並推導出相應的計算公式；分析了邊緣效應產生的原因，在加工過程中採用相對壓力因子對去除函數進行修正，可以消除邊緣效應的影響。 -
In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar. firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied. secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions. then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account. finally ， the adaptability of this search strategy is discussed. only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively. thus ， optimal search is adaptively implemented in the whole surveillance area
本文提出一種分區搜索演算法，實現了相控陣雷達的自適應最優搜索.首先，研究了各區域平均發現一個目標消耗的雷達資源和目標被發現的平均時間同搜索幀周期以及目標強度的關系；然後，研究了在各區域採用兩步搜索演算法的最優參數設計，實現了局部區域的最優搜索；其次，在雷達時間資源有限和區域重要性加權的約束條件下，導出了使目標被發現的平均時間最小的區域最優幀周期；最後，討論了分區搜索演算法的自適應性.只要採用各區域的最優參數，按最優幀周期調度雷達波束，就可以自適應地實現使目標被發現的平均時間最短的波束的最優分佈和掃描順序，即自適應最優搜索 -
With the development of the electronic technology, the higher requirements of power supply are raised including high efficiency, high power density, low emi and rapid dynamic response. a hysteresis - band instantaneous current control pwm technique is popularly used because of its simplicity of implementation, fast current control response, and inherent peak current limiting capability
隨著電子技術的發展，用電設備對電源要求不斷提高，開關電源正向著效率高、功率密度大、可靠性高、電磁干擾低、無噪聲、維護方便的方向發展。 -
Because structure inherent frequency affects vibration strength, frequency domain analysis results show that power signal density ( pst ) curve has two high peak during the frequency of 0. 38 ~ 0. 41hz
頻域動強度分析結果顯示，功率譜響應在0 . 37 041hz之間有兩個比較大的峰值，這是系統固有頻率影響的結果。 -
In this paper, the soi technology is applied to the integrated circuit fabrication. soi technology overcomes some disadvantages of bulk silicon because of its inherent structure. it has the advantages such as no latch - up effect, low parasitic capacitance, high transconductance, simple structure, high density and good anti - radiation
Soi技術以其獨特的材料結構有效地克服了體硅材料的不足，它具有無閉鎖效應；漏源寄生電容小；較高的跨導和電流驅動能力；器件結構簡單；器件之間距離小；集成度高；抗輻射性能優良等優點。
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