論經數典 的英文怎麼說
中文拼音 [lúnjīngshǔdiǎn]
論經數典
英文
discuss the arts and the classics-
The new algorithm bases on bisection and secant iteration, which is different cuppen ' s method and newton iteration. the results of theoretical analysis and numerical testing show that convergent rant of our algorithm is obviously faster that of the classical algorithm
該演算法以割線法迭代為基礎，明顯不同與傳統的newton迭代法，理論和數值實驗表明改進的演算法的收斂性比經典演算法好Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed
鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。In this paper, canonical ensemble theory is applied to investigate the second virial coefficient of a classical mixed gas and the limitative expression of the second virial coefficient formula is discussed ; in the meantime, the application of the investigation conclusion is put out
摘要本文應用正則系綜理論研究了經典混合氣體的第二維里系數，並討論了各種極限情況，同時指出了所得結果的實際應用。It shows that information function can more accurately evaluate the quality of items and test and the ability of examinees than ctt does, so it has more strong guidance in editing test
研究結論表明：信息函數較經典測量理論能更精確地評價項目質量、測驗質量及被試能力水平，因而對測驗及學生能力水平的評價更科學，同時對測驗的編制有更強的指導作用，值得推廣。Taking a view of pure time field, this paper presents dissolvable signals and basic concepts of sampling ; and also gives the very condition of discrete of signal ; this paper uses linear algebra to analysis this kind of signal and then gives some results and relevant deductions ; based on these results, 1 made a further step to analysis some typical band - limited signals in order to proof the coherence of my theory of dissolvable signal to the typical sampling theory ; i made some preliminary study about the feasibility of sampling and recovering of this kind of signal
本文從純時域角度出發，給出了可分解信號及其采樣的基本概念；也指出了信號可離散化的條件；利用線性代數理論給出了對這類信號進行采樣的分析理論及相應的推論；並用這些結論對典型的帶限信號進行了分析，證明可分解信號采樣定理與經典采樣理論的一致性；初步探討了對這類信號的實行采樣與恢復的工程實現問題。The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory
本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。After analyzing the soil stress, flexure moment data of central section of the sheet, and the flections data of two kinds of holding sheet models which are different on span, the paper gets the horizontal and vertical soil stress distribution rules and compares the result of the exam with calculating result of classic soil stress theory
通過對兩種跨度的擋板模型的土壓力、擋板跨中彎矩、擋板跨中撓度值的分析總結，得到了擋板後土壓力沿高度及水平方向的分佈規律，並在土壓力分佈形式及數值大小與經典理論作了比較。But almost none studies analysis and design principle about quasiliquid device by the numbers. for providing theory guidance for quasiliquid device design and improving capability and reliability of quasiliquid fuzes, taking experience formula of loose object orifice flowage of loose object mechanics, this paper constitutes three type quasiliquid safety and arming device mathematics models by force analysis
為了為引信準流體機構設計提供理論指導，提高準流體引信性能及其可靠性，本文以散體力學散粒體孔口流動經驗公式出發，結合典型準流體機構具體結構，通過受力分析，建立了離心力驅動、彈簧力驅動和離心力與彈簧力相結合驅動三種典型準流體延期解除保險機構地解除保險過程數學模型。From the 100m dash to the 42. 195km marathon, from the hammer throw to the high jump, it contai many of the olympic games ' blue - ri on events and many of the highest - profile competitors
無論是百米短跑還是全程42 . 195公里的馬拉松，無論是鏈球比賽還是跳高，田徑比賽包含了眾多奧運會的經典項目和為數眾多的大牌明星。From the 100m dash to the 42. 195km marathon, from the hammer throw to the high jump, it contains many of the olympic games blue - ribbon events and many of the highest - profile competitors
無論是百米短跑還是全程42 . 195公里的馬拉松，無論是鏈球比賽還是跳高，田徑比賽包含了眾多奧運會的經典項目和為數眾多的大牌明星。From the 100m dash to the 42. 195km marathon, from the hammer throw to the high jump, it contains many of the olympic games ' blue - ribbon events and many of the highest - profile competitors
無論是百米短跑還是全程42 . 195公里的馬拉松，無論是鏈球比賽還是跳高，田徑比賽包含了眾多奧運會的經典項目和為數眾多的大牌明星。The classic control theories based on the feedback primarily design the parameter of the controller according to the error, to reduce influence of the indetermination
經典控制理論主要利用反饋，根據誤差來確定控制器的參數設計，盡量消除它們的影響。This unevenly location of fdi and it ' s fluctuate trend affected the balanceable development of regional economy profoundly. based on the international capital flows and the economic facts of fdi flowing into china, this paper establishes an analytic framework with international economics and regional economics, then analyzes the effect of fdi on regional economic growth and in the end put forward the regional policy advice which would stimulate foreign investments inflowing into china
本文以經濟全球化趨勢下的國際資本流動和改革開放的經濟現實為背景，借鑒新制度經濟學和新古典經濟學分析方法，建立了國際經濟學、區域經濟學和發展經濟學的分析框架，理論分析與實證研究相結合，重點運用數理統計方法和計量經濟模型，利用時間序列和橫斷面數據對fdi對我國區域經濟增長的影響進行了全面分析，並提出了引進外資的區域政策建議。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義This dissertation proves that a single m - partite entangled mixed state in the system whose dimension of each subsystem is two cannot be purified to an m - partite entangled pure state. in general, a single m - partite entangled mixed state whose density matrix has higher rank cannot be purified to an m - partite entangled pure state. for a class of entangled mixed states, its fidelity cannot be increased under locc
論證了在局域操作和經典通信下，單個多體糾纏混合態（每個子系統的維數都為2 ）不可能被純化；密度矩陣有著較高秩的混合態也不可能被純化；給出了一類多體糾纏混合態，在局域操作和經典通信下，對某一糾纏純態的忠實度不能增加。The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。In the last, the modern control theory and simulink in matlab have been integrated together, and it has been applied in active control of the platform structure elastically supported ; a mechanical model and an equation of motion in state space have been established. based on coc, dynamic response of the platform structure elastically supported has been studied under simple harmonic load ; the influence of different values of weight function to the active control efficiency of the structure has also been discussed
本文還將現代控制理論與matlab的simulink動態模擬軟體包相結合，將其應用於彈性支承平臺結構的主動控制中；建立了彈性支承平臺結構主動控制理論的力學模型和狀態空間內的運動方程；應用經典線性最優控制演算法對彈性支承平臺結構在簡諧荷載作用下的動力響應進行閉環控制；分別從理論和數值計算兩個方面討論了狀態權函數矩陣q和控制權函數矩陣r的不同取值對控制效果的影響。A way to avoiding crack or reducing crack width of concrete or reducing distortion of member is using prestressed concrete. the writer tried to make full use of the merit of the prestressed concrete and designed prestressed concrete mandril to control crack of structure. the prestressed concrete mandril, which was firstly applied high pressure on a small concrete bar, and then was made in concrete, so it would act as reinforced bar and resist load. in this thesis the writer designed 24 mmnbers and had experimental study of them, reached the conclusion that the effect of resisting crack of the prestressed concrete mandril was good when the load was not large, it can enhance the capacity of resisting crack and reduce the crack distance and crack width, but when the loads was large, the effect of resisting crack was not good, when we used the prestressed concrete mandril and reinforced bar together in member, the effect of resisting crack was very good. the writer analysed the adherence mechanism and wreck mechanism of the prestressed concrete mandril in anxial tension members, and according to the character of the prestressed concrete mandril, the writer constructed the bond model of it. then the writer introduced the analysis theory of crack including the bond - slip theory, the non - slip theory, the synthesis theory and mathematics stat method. the different theory had different theory base, they considered that the primary affection of crack width was different. in this test, the crack distance and crack width of members which placed reinforced bar were match to the compute value of the code gb 50010 - 2002 very well. to the members which
本文共進行了24根試件的試驗研究，得出了預應力混凝土芯棒能較大地提高構件抗裂承載力，在荷載小於預應力混凝土芯棒的開裂荷載時有較好的抗裂效果，能較大地減小裂縫間距和裂縫寬度，但是當荷載較大預應力混凝土芯棒開裂時預應力混凝土芯棒的抗裂效果不是很好，若將普通鋼筋和預應力混凝土芯棒一起使用時則有很好的抗裂效果。本文分析了預應力混凝土芯棒在軸拉試件中的粘結機理和破壞機理，根據預應力混凝土芯棒本身的特點，提出了預應力混凝土芯棒與后澆混凝土之間的粘結模型。然後本文詳細介紹了經典的裂縫分析理論粘結滑移理論、無滑移理論、綜合理論和數理統計方法，各理論有著各自不同的理論基礎，認為影響裂縫寬度的主要影響因素也各不相同。These technologies include the procedure of classification and the preprocessing of classification data and compared and evaluated criterion of classification methods. several of typical classification algorithms are compared which are decision - tree and k - nearest neighbor and neural network algorithm. then the emphasis of the paper is induced that divide the classification to eager and lazy and the research of classification algorithm in data mining is based on this divide
討論了數據挖掘中分類的基本技術，包括數據分類的過程，分類數據所需的數據預處理技術，以及分類方法的比較和評估標準；比較了幾種典型的分類演算法，包括決策樹、 k -最近鄰分類、神經網路演算法；接著，引出本文的研究重點，即將分類演算法劃分為急切分類和懶散分類，並基於這種劃分展開對數據挖掘分類演算法的研究。分享友人