退行進化 的英文怎麼說
中文拼音 [tuìhángjìnhuà]
退行進化
英文
devolution-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。The procedure functions in the compare between partial image of dynamic collection and corresponding image of the airscape. in chapter 5, basing on the analysis of correlative theory of digital image, we introduce the improved fasted - down algorithm and simulative anneal algorithm, which applies to nn calculation, an d bring forward the unique and effective means, correlative original value evaluation. basing on the combination of correlative arithmetic, a stable, high - speed and exact correlative arithmetic is formed, which makes it possible to apply computer vision detection of single - needle quilting in industrial production
本文展開研究並取得一定成效：構建了基於pci總線的微機實時圖像採集系統；在採集的布料總圖（鳥瞰圖）的基礎上，通過數字圖像的數字濾波、圖像增強、邊緣檢測等處理，提取布料圖像的邊緣，對輪廓的矢量化的象素點進行搜索，得到相應的圖案矢量圖，從而確定絎縫的加工軌跡，生成加工指令；在進給加工過程中，主計算機對動態局部圖像與總圖（鳥瞰圖）的對應部分進行圖像相關的匹配計算，應用數字圖像理論，結合神經網路計算的改進最速下降法和模擬退火演算法，提出獨特而有效的相關迭代初始值賦值方法，形成穩定、高速和準確的相關運算，實現單針絎縫視覺測量和自動控制。Based on the science of human settlements, the theory of urban growth, the theory of urban - rural integration and the theory of sustainable development, this paper proceeded with the prominent contradiction between urban growth and cave - dwellings " degeneration. after analyzing general situation and regional feature of qingyang, the actualities of cave dwellings were evaluated in the first place which including cave dwellings " history, basic style, regional feature, green principle, culture connotation, as well as traditional cave dwellings " shortage and developing dilemma
本研究從城鎮增長和窯居退化這一突出矛盾入手，依據人居環境理論、城鎮增長理論、城鄉一體化理論、可持續發展理論，在分析慶陽概況與區域特徵的基礎上，首先對慶陽窯洞民居的發展現狀進行了評價，包括窯洞民居的歷史沿革、基本類型、地域特色、綠色理念、聚落景觀、文化內涵以及傳統窯居的局限性和目前發展的困境。This text firstly wields theories and ploys as strategical administration matrix, balance - point of profit and loss, five competitory models and burgeoning strategical administr ation, which is to make a comparatively embedded analysis on broadband inside - and - out side condition including technical level, consumer characters, competitive status and mark eting status, etc, to bring forward available correspondence hypothesis of consumere and to put forward two ways - out for small - and - medium sized providers by swot matrix and big strategy matrix. one is gradualism retreat tactic. considering the particularity of broadband network industry, this text gives the design of gradualism retreat pattern. the other is incorporate strategy of scale domino and much more effective negotiationchip. especially, this text puts emphasis on discussion of incorporate implement methods, proposing to adopt the way of demanding contrast prise - fixing and output pluralism of products so as to induce the consumers to cut down marketing breeding periodicity, use crm to establish core competity for small - and - medium sized providers and simultaneously lay a foundation of next commingle dealing in this field
本文運用戰略管理理論中戰略管理模型、價值鏈、盈虧平衡點、五種競爭力模型、新興產業戰略管理、市場營銷學等思想理論和方法，對寬帶網產業內外環境（包括技術、競爭狀況、市場狀況等）進行詳細分析，總結了中小型寬帶網運營商在市場營銷、資源配置、經營成本、產品結構、政策管制等幾個方面的優劣勢，並析出其中的關鍵因素，運用大戰略矩陣、 swot分析矩陣，提出中小型寬帶網運營商一進一退兩種截然不同的發展戰略，即「漸進式退出」策略和「一體化」策略。Slices of hg _ ( 1 - x ) mn _ ( x ) te crystals were annealed under low temperature in hg atmosphere to improve their electronic properties. the electronic properties of annealed slices and coterminous non - annealed slices were evaluated by hall measurement
為改善晶體的電學性質，本文通過優化退火工藝，對hg _ （ 1 - x ） mn _ xte晶片進行了低溫hg氣氛下的退火。Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions
同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。Three amendments are made to neighbor - joining method : first, a more precise evolution model is used to calculate the distance between sequences ; second, sequences are used to generate multiple typological structures, and hence compensate the shortcoming of neighbor - joining method, which can generate only one typological structure ; third, back mechanism is introduces to avoid the negative branch length in distance method and get a more accurate tree
本文對距離法中的鄰接法進行了三點改進: 1 .使用更精確的進化模型來度量序列之間的距離，降低因模型而帶來的誤差; 2 .通過隊列產生多個拓撲結構，解決了鄰接法只能產生一個拓撲結構的缺陷; 3 .引入回退機制，消除了距離法中負枝長的產生，得到的樹更準確。However, the simulated annealing algorithm will expand too much time to estimate the values of objective function when applied to aerodynamics optimizations. the way to remedy this problem in this dissertation is by improving the efficiency of optimizer and the cfd - solver. our cfd - solver is base on the modification to the proper orthogonal decomposition ( pod ) method that can produce a finite series of basis functions or modes through the solution of snapshots
但對于氣動外形優化設計問題來說，由於評估需要解決的問題的目標函數值需要多次調用流場解算器，會導致用模擬退火演算法進行優化設計的計算工作量過大，因此需要我們對流場解算器和優化方法兩個方面進行研究以尋找此問題的解決辦法。A flexible scheduling method of multigroup parallel evolutionary programming based on simulated annealing
基於模擬退火多種群并行進化規劃的柔性調度方法To ensure the implementation of diversification and international strategy, we must take practical measures on property rights reform, organizational structure, enterprise ' s core competition, human resources, strategic alliances, moving to the suburb, stimulant mechanism, technical renovation, cultivating advanced enterprise culture, etc
為了保證多元化和國際化經營戰略的實施，必須在產權改革、組織機構、企業核心競爭力、人力資源、戰略聯盟、退二進三、激勵機制、技術改造、培育先進企業文化等方面採取切實可行的措施。Based on the nature of designing movements of clocks and watches, this paper uses expert systems to make initial design of the overall packing, and then adopts genetic algorithm and simulated annealing algorithm to optimize the design
根據鐘手錶機芯設計的特點，本文採用專家系統進行進行總體布局初步設計，然後利用遺傳演算法和模擬退火法對設計結果進行優化設計。專家系統由自行研製的設計型專家系統工具gdest來構造。According to the rules and considerations which are based and taken into account in the practical work, this paper proposes a new model for distribution maintenance scheduling which intends to find the most economical maintenance schedule without violating any restrictions and also the paper makes a deep research of ga, sa and ts. by constructing two effective instructive rules which derive from the feature of distribution maintenance schedule and introducing ts into mutation operation of ga in the earlier generations, the proposed method improves the convergence of optimization and shortens the calculation time. the proposed model and method are applied to a practical system, and numerical results verify ' the correctness and validity of them
本文結合實際電力調度計劃工作中檢修計劃的制定原則和所要考慮的各種因素，抽象出適合配電網檢修計劃優化的數學模型：對遺傳演算法、模擬退火演算法以及禁忌搜索演算法等多種演算法進行了研究和分析比較，針對遺傳演算法的不足提出了通過對實際問題的分析抽象出一定規則指導演算法在解空間進行搜索和兩階段變異運算元兩項改進措施，並應用於配電網檢修計劃優化，編制了相應的應用軟體；應用該軟體對我國南方某地區供電局某月的檢修計劃進行優化的結果表明，本文所提出的模型和改進的優化方法是正確和有效的。Abstract : simulated annealing and multigroup parallel evolution are two helpful methods which can improve the performance of genetic algorithm. these two ideas are well combined in this paper, and a new algorithm is derived, that is the multigroup parallel genetic algorithm based on simulated annealing method. simulation results show that this method not only quickens the computation, but also improves the convergence efficiency, thus produces more satisfactory results
文摘:模擬退火和多種群并行遺傳進化是兩種較好的改進遺傳演算法性能的方法.將這兩種思想有機地結合起來，提出了一種基於模擬退火機制的多種群并行遺傳演算法.模擬結果表明，該演算法不僅能增強演算法的全局收斂性，還能加快遺傳進化速度，得到滿意的全局最優值First, the current optical system construction ' s optimization algorithms are based on the just optical system ' s preliminary construction which designers have selected. optical system program can not automatically change the optical elements ' nember. so that optical system design ' s intelligentized degree is not high. now this paper applies the genetic algorithms to lens design and shows that the genetic algorithms can effectively work in automatically changing the optical elements ' nember. next, this pape present a new computer design method that applies the genetic - simulated annealing algorithms to directly design the binary optical element
首先，由於現有的光學系統結構設計的優化演算法都是在選定了初始光學結構的基礎上，只對光學結構參數進行優化選擇，在優化過程中不能夠自動改變光學面數，導致光學系統設計的智能化程度還不是很高，採用遺傳演算法，實現了光學面的自動增減；其次，區別于傳統的二元光學設計方法，為避免其量化臺階數過大導致的成本及加工復雜度的增加，提出了運用混合優化策略遺傳-模擬退火演算法直接設計二元光學元件的新的計算機方法。Focusing on the topic of venture capital and appling information economics theory to venture capital function mechanism in this paper, we systemically and deeply analyze three aspect of venture capital function mechanism : venture capitalist evaluation, venture financial structure optimization, venture capital exiting mechanism
本文緊扣創業投資基金的主題運用信息經濟學理論對創業投資基金運作機制的三個方面：創業企業家的評估、創業企業資本結構優化和創業投資基金的退出進行了比較系統、深入的分析。There are two methods to optimize the parameters and structures of neuro - fuzzy networks : one is the differential coefficient optimization method based on gradient vector ; the other is based on modern optimization methods, such as genetic methods, simulated annealing etc, in which, the researches on genetic methods are most prominent
目前，對模糊神經網路的權值或結構進行優化的方法有兩類：一類是基於梯度向量的導數優化方法；第二類方法是基於現代最優化技術的非導數優化方法，如遺傳演算法、模擬退火演算法等，其中以遺傳演算法的研究最為突出。Then the result of certain k - shortest path algorithm is introduced as a set to be chosen by both the simulated anneal algorithm and heuristic algorithm, concerning the end - to - end traffic requirement and restriction on link bandwidth. afterwards, the effect of the value k on the outcome of the simulated anneal algorithm is researched. the network resource is allocated, while the study of link protection problem on traffic routing is introduced and two types of protection, shared protection and dedicated
首先考察實際的網路模型，根據業務需求，引入k路由演算法的結果作為模擬退火演算法和啟發性演算法備選路由集合，在鏈路帶寬有限的約束下對網路資源進行分配，同時引入業務路由的通路保護問題的研究，實現了共享保護和專用保護兩種通路保護方式;針對全波長轉換網路和無波長轉換能力網路，根據為所有連接請求所分配的總資源最少和滿足請求的業務數目最多兩種優化目標對資源分配進行優化，研究了備選路由集大小對模擬退火演算法結果的影響;對模擬退火演算法與啟發性演算法的By using of simulated annealing algorithm, attribute weights of hierarchy clustering model were optimized in terms of weights allocation quotas, which was used to improve the case retrieval efficiency and quality
基於模擬退火演算法對特徵屬性的權重值進行優化，通過在相似度檢索模型中加入權值分配的指導信息，防止檢索出的相似度系數最大的事例並非最佳事例，提高了檢索的質量。We also discuss the way of tolerance analsys and synthesis. and we upbuild the tolerance - processing cost and tolerance - cost of quality loss models ; we can use simulated annealing method to optimize these models. on the base of the model we have upbuild, we develop a software about tolerancing design of cam mechanism
在充分研究公差分析與公差綜合方法的基礎上，建立了凸輪機構中構件的公差-加工成本模型和公差-質量損失成本模型（合稱為公差-成本模型） ，並利用模擬退火演算法對所建立的模型進行優化分析與解算。Because that there are various high market barriers not only for entry but also for exit, with such a market structure, inferior banks are hard to be cleared out, and the industrial structure optimization is restrained
無論是新銀行進入市場，還是在位銀行退出市場，都面臨著各種層層高築的市場壁壘，致使劣勢銀行難以清除，產業結構優化受到限制。分享友人