thermodynamic theories 中文意思是什麼
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With the thermodynamic theories and techniques, it is relatively easy to determine the phase equilibrium data with enough accuracy, however there still exist much more difficulties in crystallization kinetics study even for a simple binary system. that is the reason that nucleation and crystal growth rate are generally represented in form of the empirical expressions. the crystallization kinetic is important for crystallizer design, process control and optimization, and it is strongly depended upon the accurate characterization of process information concerning with multiphase flows and the further disclose of its mechanisms with suitable mathematical models
熱力學理論和方法已足以獲得準確的相平衡關系；然而即使對于簡單的二元物系的結晶過程，晶核形成和晶體生長動力學的研究仍面臨許多困難，通常採用經驗模型表述，而動力學參數的準確性和可靠性是結晶器放大設計、過程式控制制與優化的關鍵，因此多相流信息的準確表徵、結晶機理的進一步揭示及建立起與之相適應的數學模型有著十分重要的學術研究和實際應用價值。 -
In this paper, the study status about freeze - up of domestic and overseas was discussed first, then based on thermodynamic theories and river ice hydraulic theories, using the observed data to calculate parameters, the freeze - up forecasting mathematical model in inner mongolia reach was established. in the model, the calculating method of heat exchanging coefficient was perfected properly, and the river characteristics was quantified for the first time. the forecasting result indicated that the model precision is high, and the freeze - up forecasting formula is all - purposed
本文首先論述了國內外有關封河研究的現狀，然後在此基礎上針對存在問題，以熱力學理論及冰水力學理論為基礎，利用實測資料率定參數，建立了內蒙古河段封河預報數學模型，其中對熱交換系數的計算進行適當的修改，並將河道條件量化考慮進封河預報數學模型中，證明預報精確度高，且各河段預報公式具有通用性。 -
Building thermal systems and grain drying systems are nonlinear time - delay coupled thermodynamic processes and considerable difficulty was meet when classical and modern control theories based on accurate mathematical model were used to control these plants. however, fuzzy control theory that can convert specialist knowledge into control rules brings new view for these complex systems control
建築熱工系統和糧食乾燥系統都是復雜的非線性時滯耦合熱工過程，以精確數學模型為基礎的經典控制方法和現代控制方法對這類系統進行控制時都遇到了較大的困難，而能夠將專家經驗轉化為控制規則的模糊控制理論給這些復雜系統控制問題的解決帶來新的思路。 -
At first, basic thermodynamic theories were introduced to calculate the gibbs function changes of mg - si - o - c system, which was an effective tool for verifying the variation of composition during the solid - state reaction process. the possibility of the occurrence for solid - state reaction was discussed
論文應用熱力學理論對mg - si基熱電化合物固相反應過程中涉及的mg - si - o - c體系進行了熱力學計算，探討了固相反應發生的可能性及工藝制度對材料組成、性能的影響。
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