conservative數學的問題，透過圖書和論文來找解法和答案更準確安心。 我們找到下列必買單品、推薦清單和精選懶人包

Compressible Flow with Applications to Engines, Shocks and Nozzles

為了解決conservative數學的問題，作者Braga Da Costa Campos, Luis Manuel,Raio Vilela, Luís António 這樣論述：

Compressible Flow with Application to Shocks and Propulsion is part of the series Mathematics and Physics for Science and Technology, which combines rigorous mathematics with general physical principles to model practical engineering systems with a detailed derivation and interpretation of result

s. Volume V presents the mathematical theory of partial differential equations and methods of solution satisfying initial and boundary conditions, and includes applications to: acoustic, elastic, water, electromagnetic and other waves; the diffusion of heat, mass and electricity; and their interacti

ons. This is the second book of the volume. The first book of volume V starts with the classification of partial differential equations and proceeds with similarity methods that apply in general to linear equations with constant coefficients and all derivatives of the same order, such as the Laplace

and Biharmonic equations, without and with forcing. The similarity solutions are also applied to Burger’s non-linear diffusion equation. First-order linear and quasi-linear partial differential equations with variable coefficients are considered, with application to the representation of conservati

ve/non-conservative, solenoidal/rotational and Beltrami/helical vector fields by one, two or three scalar and/or one vector potential in relation with exact, inexact and non-integrable differentials. The latter appear in the first and second principles of thermodynamics that specify the constitutive

and diffusive properties of matter as concerns thermal, mechanical, elastic, flow, electrical, magnetic and chemical phenomena and their interactions. The book is intended for graduate students and engineers working with mathematical models and can be applied to problems in mechanical, aerospace, e

lectrical and other branches of engineering dealing with advanced technology, and also in the physical sciences and applied mathematics.This book: Simultaneously covers rigorous mathematics, general physical principles and engineering applications with practical interestProvides interpretation of re

sults with the help of illustrationsIncludes detailed proofs of all resultsL.M.B.C. Campos was chair professor and the Coordinator of the Scientific Area of Applied and Aerospace Mechanics in the Department of Mechanical Engineering and also the director (and founder) of the Center for Aeronautical

and Space Science and Technology until retirement in 2020.L.A.R. Vilela is currently completing an Integrated Master’s degree in Aerospace Engineering at Institute Superior Tecnico (1ST) of Lisbon University.

Quantification of Uncertainty: Improving Efficiency and Technology: Quiet Selected Contributions

為了解決conservative數學的問題，作者 這樣論述：

1. Adeli, E. et al., Effect of Load Path on Parameter Identification for Plasticity Models using Bayesian Methods.- 2. Brugiapaglia S., A compressive spectral collocation method for the diffusion equation under the restricted isometry property.- 3. D’Elia, M. et al., Surrogate-based Ensemble Grou

ping Strategies for Embedded Sampling-based Uncertainty Quantification.- 4. Afkham, B.M. et al., Conservative Model Order Reduction for Fluid Flow.- 5. Clark C.L. and Winter C.L., A Semi-Markov Model of Mass Transport through Highly Heterogeneous Conductivity Fields.- 6. Matthies, H.G., Analysis of

Probabilistic and Parametric Reduced Order Models.- 7. Carraturo, M. et al., Reduced Order Isogeometric Analysis Approach for PDEs in Parametrized Domains.- 8. Boccadifuoco, A. et al., Uncertainty quantification applied to hemodynamic simulations of thoracic aorta aneurysms: sensitivity to inlet con

ditions.- 9. Anderlini, A.et al., Cavitation model parameter calibration for simulations of three-phase injector flows.- 10. Hijazi, S. et al., Non-Intrusive Polynomial Chaos Method Applied to Full-Order and Reduced Problems in Computational Fluid Dynamics: a Comparison and Perspectives.- 11. Bulté,

M. et al., A practical example for the non-linear Bayesian filtering of model parameters.

微型電網併聯多模組變流器智慧型控制策略研究

為了解決conservative數學的問題，作者楊艷 這樣論述：

逆變器是微型電網系統中的重要電力電子介面，可將分佈式發電系統與當地負載連接構成微型電網系統，或者與公共大電網連接實現併網運行。隨著分佈式能源發電規模的擴大，考慮電力電子開關的應力以及系統冗餘性能，通常將多個小容量逆變器模組併聯以建立大容量的微電網系統。此外，介面逆變器也通過併聯運行方式將微型電網系統中不同的分佈式能源接至公共連接點。研究智慧型控制方法以提高微型電網系統中併聯逆變器模組的控制性能及優化微型電網輸出電力品質，對於提高分佈式能源接入微型電網的滲透率顯得相對重要。為了提高微型電網孤島運行模式下併聯逆變器模組在不同負載及不同運行狀況下的動態性能及供電可靠性，本文設計基於主-從電流均衡控

制策略下的併聯逆變器模组自適應模糊類神經網路模擬滑動模式控制(Adaptive Fuzzy-Neural-Network-Imitating Sliding-Mode Control, AFNNISMC)，將併聯逆變器模组視為主體，構建完整的數學模型以保證其系統級的穩定性，並在此基礎上，首先設計全域滑動模式控制(Total Sliding-Mode Control, TSMC)和具有自適應觀測器的全域滑動模式控制架構。為了提高系統的強健性、克服傳統全域滑動模式控制對系統詳細動力學模型的依賴，及消除由全域滑動模式控制引起的控制抖動現象，本文使用四層模糊類神經網路(Fuzzy Neural Net

work, FNN)來模擬全域滑動模式控制律，根據里亞普諾夫穩定理論(Lyapunov Stability Theorem)和投影算法(Projection Algorithm)，利用模糊神經網路與全域滑動模式控制律之間的近似誤差，設計網路參數的線上自適應調整律，以保證網路參數的收斂性和控制系統的穩定性。因此，即使系統存在不確定性的情況下，也可以保證併聯逆變器模組輸出高品質的電能，以及併聯逆變器模組之間高精度電流均衡性能。此外，當單一逆變器從併聯系統斷開或重新接入時，所提出的 AFNNISMC 可以保證併聯系統的不斷電運行，從而提高微型電網系統的冗餘度和操作靈活性。進一步，藉由數值模擬和實驗結

果，驗證所提出自適應模糊神類經網路模擬滑動模式控制的可行性和有效性。此外，亦與傳統的適應性全域滑動模式控制(Adaptive TSMC, ATSMC)和比例積分控制(Proportional-Integral Control, PIC)架構進行性能比較，驗證所提出的自適應模糊類神經網路模擬滑動模式控制的優越性。考慮到固定結構的模糊神類經網路難以兼顧計算負擔及控制性能，本文進一步研究 一 種 自 組 織 結 構 模 糊 類 神 經 網 路 模 擬 滑 動 模 式 控 制 (Self-Constructing Fuzzy-Neural-Network-Imitating Sliding-Mode

Control, SFNNISMC)，用於執行主-從電流均衡控制策略下的微型電網併聯逆變器模組的併網電流跟蹤控制，所設計的模糊類神經網絡同時具有結構和參數自學習能力。本文所提出自組織結構模糊類神經網路(Self-Constructing Fuzzy Neural Network, SFNN)中，輸入層的初始節點由併網逆變器模組的數目決定，而隸屬函數層的規則由動態規則生成機制依據當前的暫態輸入從無到有自動生成。同時，本結構還引入了動態派翠(Petri)網路實現規則刪減機制，派翠網路使用於重新激活與新接入的從逆變器相對應的規則，只有被派翠網路激活的規則相關的網路參數才會被線上更新，而不是所有的網路

參數皆更新，從而減輕參數學習過程的計算負擔。此外，利用里亞普諾夫穩定理論和投影算法設計網路參數的線上學習律，保證網路參數及併網電流跟蹤誤差的收斂性。藉由數值模擬展示所提出的自組織結構模糊類神經網路模擬滑動模式控制在併聯逆變器模組不同運行狀況下規則演化的過程。本文亦利用兩個逆變器模組併聯的實驗平臺，亦與傳統的比例積分控制(PIC)、滑動模式控制(Sliding-Mode Control, SMC)及固定結構的自適應模糊神經網路模擬滑動模式控制(AFNNISMC)進行對比實驗，進一步驗證所提出的自組織結構模糊類神經網路模擬滑動模式控制方案的優越性。