period matrix 中文意思是什麼
period matrix
解釋
周期矩陣-
Embryo implantation is the key period of reproduction, which includes blastocyst recognition, apposition, attachment, local extracelluar matrix ( ecm ) hydrolysis and embryo invasion
胚胎植入是指胚泡附著並侵入子宮內膜的過程，是生殖的關鍵環節。 -
The germinal matrix region is very susceptible to such lesions at this period of development, leading to ivh as a complication of prematurity
在發育期間，生發基質易出現這樣的損害，使得ivh成為早產的並發癥。 -
Fast attack speed, short period of thermal contact of matrix, long service life
2 .打擊速度快，模具熱接觸時間短，模具使用壽命長。 -
Citric acid, taking the place of hno3, solutes the substance which does not solute in solution, and it acts as the ligand of metallic ionic and the hydrolysis catalyst of si ( oc2h5 ) 4, which reduces the pollution caused by no2 which forms at the decompose process of the hot treatment. by changing the means of calcine of the drier gel, choosing the suitable temperature to burn the gel, the high temperature calcine time is shorted, which solves the question of the long period calcine. so the preparation process of the matrix and composite was finished by using more lower temperature than the traditional solid state reaction and more shorter time than the traditional sol - gel process
結果使基質和復合物的制備在比傳統的固相反應法低得多的溫度下和比常規的溶膠凝膠法短得多的時間里完成；五、對基質及復合物的干凝膠、粉體和燒結體進行了ir 、 dta 、 xrd 、 seni及交流阻抗譜表徵，研究結果表明：在溶膠向凝膠的轉化過程中同時存在著正硅酸乙酯自身的聚合作用和檸檬酸鹽絡合物之間的聚合作用：干凝膠向產物粉體的轉化在400600c之間進行；基質li 。 -
Enterprises apply for export tax rebates, the period needed to complete the seat of the ird taxes matrix, and to provide calculation of taxes ( equivalent to vat invoices ), and exports to the pleadings ( ie export declarations )
企業辦理出口退稅，需要向期限所在地稅務局填報稅金匯總表，並提供稅金計算書（相當于增值稅專用發票）和出口免狀書（即出口報關單） 。 -
3. the coupled - mode theory and matrix theory of lpfg have been studied. based on the erbium - doped fiber which has been chosen for edsfs, smf - 28 of corning corporation and photosensitive fiber of coractive corporation, the optimum fiber grating period, length, the maximum cross transmission wavelength and the relation
3 .推導長周期光纖光柵耦合模理論及矩陣理論，結合幾種不同的光纖，包括課題中的摻鉺光纖、 corning公司的smf - 28單模光纖及加拿大coractive公司的光敏光纖，利用matlab7建模並結合已確定的長周期光纖光柵的透射譜來優化長周期光纖光柵周期、長度、諧振波長等幾個參數及它們之間的關系，用來指導和優化光纖光柵的製作。 -
By using the matrix representation of a digraph, some results about the index of convergence and period of a line digraph are obtained
摘要采有有向圖的矩陣表示，得到了線有向圖的冪斂指數和周期的有關結果。 -
By constructing a test matrix in terms of the sampling period, the plant controlled and the model parameters, we give a sufficient condition to test the asymptotic stability for the system
針對不存在丟包和存在丟包的情況，通過由采樣周期、被控對象與模型參數構造的穩定性判別矩陣給出了使網路控制系統漸近穩定的充分條件。 -
Firstly, acoustic waves propagation in id quasi - periodic system is studied by means of the transfer matrix method. the transmission rate, reflection rate, energy flow, logarithmic energy flow, energy density and lyapunov exponent are obtained numerically. we explain all these parameters " relations with frequency and the size of system, and compare these p arameters with those o f periodic system. we find that these parameters are fractal in this quasi - period system
通過轉移矩陣的方法，數值地得到了系統的傳播系數t _ n 、反射系數r _ n ，能流密度j _ n 、能量密度e _ n 、李雅譜諾大指數_ n ，給出了以上各量與系統大小n以及頻率之間的關系，發現這些量存在著與周期系統不同的準周期性質，其能量會出現局域化現象，能流以及能量密度都具有分形結構，給出了相應的理論解釋。 -
On the period symmetric tridiagonal matrix inverse problem of generalized eigenvalue
關于周期對稱三對角矩陣的廣義特徵值反問題 -
Based on the strategy of management and development in modern enterprises, adopting methods of combination of theory and practice, investigation and study in addition to statistical analysis and prediction. the author in this article indicates opportunities and risks, advantages and disadvantages after carefully studying and analysis for internal and external environment of ycff ( yingkou chemical fiber factory ) quality control management system. the author also gives a design of new quality control management system, implementation and development strategy for ycff to improve product quality after performing positional analysis for existing products with life period and boston matrix theory
本文遵循現代企業管理及企業發展戰略思想，採用理論聯系實際、調查研究、統計數學分析和預測的方法，通過對營口化學纖維廠質量管理系統的內外部環境進行認真的分析和研究，明確營口化纖廠所面臨的機會和威脅，以及自身質量管理系統所具有的優勢和劣勢；應用產品生命周期對現有產品進行定位分析后，結合企業現狀，設計出新的質量管理系統並有效實施，全面提高產品質量。 -
Firstly, aiming the marketing of hydroelectricity, that is, under the situation of separated plant and network, and entering the market by the competition of price, the author analyzed the advantages of the development of hydroelectricity. secondly the author made a medium - long - period forecast and evaluation of the electric load of the accepting - electricity area by gray - and - nerve network matrix
首先針對水電市場化問題，即在廠網分家、竟價上網的形勢下，水電發展的優勢何在進行了探討；其次應用灰色與神經網路模型對受電區電力負荷進行了中長期預測與評價；通過梯級開發順序的基本理論與方法研究，得出黃河上游水電梯級開發順序的兩個備選方案。 -
Especially for matrix porosity and fracture porosity, the thesis took a way of multiple curves integrated discrimination instead of only using acoustic curve at past. during the period of the thesis research, a project about volcanic rock in liaohe basin started. so a lot of volcanic data in liaohe basin were gotten. the thesis processed and interpreted 31 volcanic rock wells and test the interpretation results with the well data which is already known
在論文的研究進程中，恰逢《遼河油田火山巖儲集層測井解釋評價》課題開題，因此使得本論文能夠得到相對齊全的有關火山巖的資料和較多的（ 31口井）單井測井資料，並根據此方法對這31口井進行了單井測井處理和解釋，將處理結果與火山巖實際地質資料對比，吻合情況較好。 -
Behavior of transition period in dry sliding process from particulate - reinforced aluminum alloy against carbon matrix composites
顆粒增強鋁合金與碳基復合材料干摩擦的過渡期行為
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