optimal selection 中文意思是什麼
optimal selection
解釋
最佳選擇-
Optimal selection of dragline amp; comprehensive analyzing of overcasting bench factors for open cast mining
露天礦拉斗鏟規格優選與臺階要素綜合分析 -
In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。 -
Abstract : a new concept of turning line of reduction parameters and its determination method is put forward in this paper for analyzing the isopleth diagram showing the relationship between reduction degree and reduction parameters in reduction of compressed scale lump containing carbon, and the method of optimal selection for reduction parameters is obtained
文摘:應用文章提出的還原參數界線概念及其確定方法對鐵鱗配焦壓塊還原過程中反映還原參數與還原指標關系的等高線圖進行分析，得出還原參數優化選擇的具體方法。 -
The flow behavior of resin, water outlet structure at bottom of the mixed bed, water inlet position of hydraulic transportation, water intake ratio, and pneumatic transportation etc. have been analysed, giving out optimal selection of them combined with reality in the field
對樹脂的流動性能、混床底部出水結構、水力輸送進水位置、進水比例以及氣力輸送等進行了分析，並結合實際給出了最佳選擇。 -
In the first part, the four feasible alternatives for the conjunctive operating system are first presented, followed by initial operating rules. the variables for energy of all alternatives are obtained by the regulating long series of historical flow and are the base of optimal selection for the second part
本項研究主要由兩大部分組成，第一部分是先擬定4種不同的可行方案，然後制定相應的運行規則，經過長系列徑流調節計算，求得各方案的動能經濟指標。 -
Tailless flying wing aerodynamic configuration being optimal selection in ucav general layout design
大展弦比復合材料機翼結構建模與氣動彈性分析 -
Optimal selection of atmospheric monitoring sites based on grey clustering method
大氣環境監測點位優化的灰色聚類方法 -
The design and construction conditions of the general bulk cargo berth of dalianwan bay in dalian port, as well as the optimal selection of design proposals and comparison of the construction cost are described
摘要介紹大連港大連灣通用雜貨泊位工程設計和施工條件，在此基礎上介紹護岸和防波堤的設計方案優選及該工程的造價比較。 -
In the course of the optimal selection of the bridge designs, many influencing factors are involved
摘要橋梁設計方案在優選過程中，涉及到的影響因素很多。 -
It is difficult to be settled by classical theories because of fixed quality and quantity. this thesis bases on the improvement of traditional way, overcomes its i ack experience, takes the more advanced fuzzy decision - making and optimal selection theory, researches into the established model and gets the result that it ' s best to set pangtoupao storage and detention flood area on the left side of menjiang river by comparing the four schemes and ten objectives of fixed quality and quantity. the result holds identical views with the result of usual economic evaluation. so it ' s the first time using fuzzy decision - making and optimal selection theory to resolve the important and pragmatic problem comprehensively and scientifically
本文在總結用傳統的方法研究經驗與不足的基礎上，採用目前較先進的模糊優化理論及建立起的模型進行蓄滯洪區設置及規模研究，通過對嫩江四個蓄滯洪區方案， 10個定性定量目標的優化比選，得出在嫩江左岸設置胖頭泡蓄滯洪區最優，其優選結果與採用常用經濟評價方法所得結果基本一致，從而第一次用模糊優化理論較全面科學地解決松花江流域防洪工程中確定蓄滯洪區規模這一重大實際問題。 -
Optimal selection of environmental monitoring point
大氣環境監測點的優化布設 -
This paper adopts multi - grid and the optimal selection of the relaxation gene, so it quickens the convergent speed of iteration
方程組的求解過程中，採用了多重網格法的思想和優選法試驗鬆弛因子法，來加快迭代的收斂速度。 -
Application of gray relational method dased on combination weighting in optimal selection of reinforcement proposals for bridges
組合賦權灰關聯法在橋梁加固方案優選中的應用 -
( 5 ) according as different dispatching results under different parameters combination of aertashi reservoir, taking into account hydraulic, energy, investment index etc, the characteristic water level of aertashi reservoir are selected by applying fuzzy optimal selection theory and grey relation analysis theory, and the optimal parameter combination is recommended
（ 5 ）根據阿爾塔什水庫不同參數組合情況下葉爾羌河流域水庫群調度結果，考慮水利、動能、投資等指標，運用模糊優選理論和灰色關聯分析理論對阿爾塔什水庫興利特徵水位進行了優選，推薦了最優參數組合。 -
Application of vba in the optimal selection of hydrologic statistic parameters
在水文統計參數優選中的應用 -
Optimal selection of pit haulage system in transition period for mining - in - areas
露天礦分區過渡期間合理開拓運輸系統選擇 -
Making use of the idea of the parallel genetic algorithms, presenting the adaptive multiple subpopulation evolutive strategy. presenting extinction and immigration strategy in order to avoid the similar or even same individuals appear. in order to enhance convergence velocity of reactive power optimization of the radial distribution system, combining the characteristic of the radial distribution system, a sensitivity analysis approach was build up for optimal selection of capacitors and mutation of transformer tap changer
為了提高配電網無功優化的收斂速度，結合配電網的特點，提出採用簡單可行的靈敏度公式選擇無功電容補償器的安裝地點，並用靈敏度分析變異變壓器分接頭，使變異運算元的選取更符合配電網無功優化問題中關于調節變壓器分接頭的實際情況，減少了一些不必要的變異運算，使適應性和魯棒性加強；根據實際情況採用無功補償電容器的啟發式變異，使變異運算元的選取更符合無功優化問題中關于補償電容器的實際。 -
A hybrid method for optimal selection of weighting matrices in integrated design of structure control
控制綜合設計中矩陣的混合優選法 -
In order to overcome the present numerous methods for water prediction and the complex model, which make the actual selection of prediction methods more difficult. according to the changing characteristic of water and analysis theory of auto correlated formation, the data formation of time series was discerned, optimal selection methods for the model of water prediction were raised
為克服目前用水量預測方法眾多，模型繁雜而給實際預測方法選擇帶來困難的情況，根據城市用水量的變化特徵，通過自相關分析理論，對時間序列的數據模式進行識別，提出了用水量預測模型的優選方法。 -
A new kind of optimal selection cluster algorithm ( osca ) is presented in this paper, and a new hybrid algorithm is obtained by combining osca with least squares method and gradient algorithm. the algorithm can synchronously solve the identification problems of the new fuzzy neural network model ' s structure and parameters
提出一種新型優選聚類演算法，並將該演算法與最小二乘法和梯度下降法相結合，形成一種新的混合學習演算法。該演算法能同時解決上述新型模糊神經網路模型結構和參數的辨識問題，進一步提高了模型的辨識精度。
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