natural matrix 中文意思是什麼
natural matrix
解釋
固有矩陣-
Application of natural acellular matrix graft in bladder reconstruction
天然無細胞基質移植物在膀胱重建中的應用 -
Under some natural weak assumptions that do not require the technological coefficients matrix is indecomposable, the fact that the dynamic input - output system is not asymptotically stable and the closed dynamic input - output model exists a balanced growth solution is proved
利用矩陣特徵值理論和廣義系統理論，在相對弱的條件下（不需要直接消耗系數矩陣不可分解） ，證明了動態投入產出系統不是漸近穩定的。 -
Firstly, a natural number chaotic sequence is created with the key. then the image matrix is transformed with this chaotic sequence, using the magic cube transformation. the results indicate that the proposed algorithm can get a satisfying effect
提出了一種在小波域內的基於混沌序列的模運算數字圖像加密解密演算法和基於混沌序列的魔方變換數字圖象加密解密演算法。 -
Considering the nonuniqueness and instability of ultrasonic computerized tomography for structural concrete as well as the ultrasonic transmission characteristics in concrete, a natural weight matrix with dear physical meaning was introduced in the inverse algorithm
摘要針對混凝土超聲波層析成像結果不唯一和穩定性差的問題，首先依據超聲波在混凝土中的傳播特點，在反演演算法中引入物理意義明確的自然權矩陣，對走時較小的射線和射線較密的成像單元加以重權。 -
Consequently, on the basis of non - winkler foundation model, a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province, which the continuity of soil mass can be accounted for under various boundary conditions, different loadings and irregular beam characters
本文結合湖南省自然科學基金項目「樁基承臺梁優化設計理論與方法研究」 ，針對非文克爾地基（半空間、線性變形層或單向壓縮層地基模型等）上的樁基承臺梁，提出一種利用地基柔度矩陣來進行迭代的有限單元法，可充分考慮梁下土體的連續性，並對基礎與土體脫開、承臺梁截面變化、梁體邊界條件復雜、上部荷載類型變化以及梁下基樁承載力差異等情況進行分析計算。 -
The aesculus chinensis, euptelea pleiospermum, cercidiphyllum japonicum, taxus chinensis, picea brachytyla arid emmenopterys henryi oliv compose and stand structure of were studied, and the comparability matrix among those main woods distribution ere studied, and the protection propagation countermeasures were put forward, which are important for researching and protecting these rare woods in funiu mountain natural reserve
經調查，基本摸清了國家保護植物七葉樹林、領春木樹林、連香樹林、紅豆杉樹林、雲杉樹林、香果樹林6種珍稀樹種林分的組成與結構，研究了主要林分之間的相似性矩陣，同時提出了保護繁育對策，對開展研究和保護珍稀樹種具有重要意義。 -
The matrix of time and space for development of hydrogen energy system in china will instruct this work comprehensively, scientifically and objectively ; for beijing case and from all the aspects of energy, environment and economy, the best plan of hydrogen energy system about fuel cell vehicles is : hydrogen is produced by natural gas steam reforming in the central factory, then transported to the refueling stations in the hydrogen tube trailer by the trucks, and filled to the fcb using hydrogen gas
這一工作應在燃料電池汽車氫能系統發展時空矩陣的指導下有計劃、有步驟地完成；燃料電池汽車在我國最早實現商業化的時間是2008年（奧運會） ，地點是北京，車型是燃料電池公共汽車。針對這一案例，綜合考慮燃料電池汽車氫能系統「從井口到車輪」全生命周期的能源利用效率、環境影響和經濟性指標，最佳的方案是：在集中制氫廠採用天然氣蒸汽重整制氫，用汽車將裝有氫氣的高壓氣瓶輸運到氫氣加註站，加註給以氫氣為燃料的燃料電池公共汽車。 -
By means of the measuring the natural frequencies of a beam on a elastic foundation together with the transfer matrix method and the computer algebraic language ， the paper deduces the high - order equation ， which contains unknown quantity of the stiffiness of supports. this method ， the validity of which has feen verified by experiments ， can be applied to identifying the foundation coefficient
本文通過實測彈性地基梁的固有頻率，以傳遞矩陣法為基礎，利用計算機代數語言，導出以支承剛度為未知數的高次方程，從而識別出地基系數，並通過實驗驗證該方法的正確性。 -
Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory
針對上述問題，在國家自然科學基金（高技術新概念新構思探索） 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下，本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究，取得了以下成果： （ 1 ）根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式，將飽和模式的線性系統（簡稱為lssm系統）引入到有限元的神經網路計算中，在理論上實現了有限元神經網路計算的無誤差求解。 -
And when a particular type of alginate is dissolved in water, then exposed to positively charged calcium ions, its molecules crosslink to form a hydrogel that is 98 percent water, with a gelatinous consistency and elastic properties similar to those of natural extracellular matrix
當某一特定類型的褐藻酸鹽溶於水，遇到帶正電的鈣離子后，它的分子會連結形成含有98 %水的凝膠，其膠質密度和彈性都類似天然的細胞外間質。 -
To combine it with the virtue of valuable earthquake damage experience accumulated in china and stored in damage matrix, an inversion strategy is designed to search seven ratios of 4 spectral displacements of buildings to the median values of spectral displacements of 4 damage states by the criteria of the convergence of the values of the standard deviations of the natural logarithm of the spectral displacements of four damage states as the objective function, a hybrid procedure integrated the simplex with the generic algorithm is adopted and the program is updated for this purpose from an existing one
為了說明本文方法的實用性，以xx市xxx區的多層砌體房屋為例，根據地震危險性、建築物易損性、建築物和室內財產損失率、人口死亡率，分別計算出房屋、室內財產的期望損失率和損失率的方差、人口的期望死亡率和死亡率的方差，得到純費率，設附加費率為純費率的一定比例，求得毛費率。 -
This paper bring out design method of inverse eigenvalue problem, which adapts to general structures with linear parameters, namely coefficients of all or partial elastic component and inertial component are treated as design parameters, for given some order natural frequency and corresponding vibrating mode, all of useable designing parameters will be got through solving a linear system of equations, thereby stiffness matrix and mass matrix of actual structure are constructed. this paper also discusses existence condition and unique of results
提出了適用於具有線性參數的一般結構的逆特徵值問題的設計方法，即以系統的全部或部分的彈性元件與慣性元件的系數為設計參數，對于預先給定的若干階固有頻率及相應振型，通過求解一線性方程組即可確定全部實際可行的設計變量，從而構造出實際結構的剛度矩陣和質量矩陣，並論證了解的存在性與唯一性。 -
Standard practice for preparation of natural - matrix sediment reference samples for major and trace inorganic constituents analysis by partial extraction procedures
使用部分萃取法的大量和微量無機成分分析用天然雜礦石沉澱物標樣制備的標準實施規范 -
The fundamental vibration theory about bridge structure and the formation about the property matrix are introduced. according to the linear theory and the finite element method about space system of bars, the corresponding vibration analysis program is compiled. using this program, the natural frequencies about the wuhu changjiang river bridge are analyzed
首先介紹了橋梁結構的振動基本理論，然後介紹了對板桁結合斜拉橋的固有振動進行分析時所需用到的特性矩陣的計算方法，最後依據線性理論，採用空間桿系有限元法，編制了相應的斜拉橋結構的空間動力分析程序。 -
The engineered heart transplants had integrated well with the scar tissue, and the alginate scaffolds had begun to dissolve, with natural extracellular matrix appearing in their place
移植的人造心臟組織融入傷疤組織的情況良好，褐藻酸鹽支架也開始分解，似乎由天然的細胞外間質取代。 -
By using the method of transfer matrix, the dynamic model of the driving shaft vibration of swing movable teeth reducer is built. the calculation formula for natural frequencies of the flexural vibration of the driving shaft is derived
應用傳遞矩陣法，建立了擺動活齒減速器輸入軸振動的動力學模型，導出了輸人軸橫向彎曲振動的固有頻率的計算公式。 -
Focusing on a tuning fork vibratory gyroscope fabricated through silicon bulk micromachining, the matrix perturbation technology in the random finite element method was introduced to analyze the statistical characteristics of the natural frequencies and output capacitance of tuning fork vibratory gyroscope
摘要以一種通過體微機械加工技術制備的音叉振動式微機械陀螺為對象，基於隨機攝動技術定量計算了微陀螺固有頻率變異和檢測輸出電容變異的統計特徵，以概率思想表達了微陀螺批量加工過程所帶來的材料尺寸隨機誤差對其性能的影響。 -
The compute model of shafts of the machines is built by adopting concentrated mass method. taking into account the different support conditions of the shafts that workshop is considered as rigidity or elasticity ; the natural characteristic and unbalanced response of the shafts are computed by integrating with high stable riccati transfer matrix method
採用集總質量法對機組軸系建立了計算模型，並結合穩定性良好的riccati傳遞矩陣法，分別考慮機組軸系的支撐基礎（廠房）為剛性、彈性兩種情況，計算了機組軸系的自振特性、軸系的不平衡響應。 -
As to the polyreference implemention of the least - squares complex frequency - domain estimator in mathematical separation technique of modes, this thesis builds a right matrix - fraction description model to estimate the system poles. then frequency point stabilization diagram is set up and analyzed to automatically determine natural frequencies, modal damping ratios and modal participation factors. finally mode shapes are identified based on the least squares theory
對于模態數學分離技術的多參考點最小二乘復頻域識別技術，先建立右矩陣分式頻響模型，識別出系統極點，再通過建立和分析頻率點穩態圖，能自動的確定出結構的固有頻率、模態阻尼比和模態參與因子，最後根據最小二乘原理識別出模態振型向量。 -
At the same time, it suggests apply the landscape ecology theory to the urban green space system planning and design. in the last part, this paper applies above planning theories and methods to practical urban green space system planning in wuhan. after analyzing the urban spatial structure, urban natural matrix and current green space condition, it puts forward to that urban green space system planning in wuhan should strongly control main city zone ' s external sprawl by using the green belt based on the naturally " tilted cross " morphology, and construct a regularly contributed urban green space network that has perfect system and has infiltrative and leading function to urban spatial structure in wuhan by using the green corridor connected with green patch
最後，將上述的規劃理念和方法運用於武漢市城市綠地系統規劃的實踐中，廠迄莖內碩士學位論文alaster 』 sthesis對武漢市的城市空間結構、城市自然基底和綠地現狀加以分析，提出武漢市城市綠地系統規劃應該以山水「斜十字」交叉形態為基礎骨架，用「連藤結瓜」式的環城綠帶對主城區的外延發展實施強有力地控制，通過綠色廊道網路聯系「大小綠地斑塊，以構建一個均勻分佈、體系完善、對城市空間結構具有滲透性、引導性的城市綠地系統。
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