能量發散 的英文怎麼說
中文拼音 [néngliángfāsǎn]
能量發散
英文
energy spread-
If it is focused. so the boiloff and cautery of focus tissue can be used in the therapy. also if it isn t focused, the laser radiating focus tissue can bring about concretion effect
激光治療儀的發散角極小，能量密度高，經聚焦后，可達每平方厘米幾千瓦的功率， co2激光治療儀可用於對病灶組織的汽化，燒灼或切割病灶組織，所以co2激光治療儀也稱謂激光刀。Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally
本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。The rest of the time, energy is dissipated through a set of energy states that do fluoresce in the lab
剩餘的時間，能量則通過其他一系列散發熒光的能量狀態進行轉移。We have put large amounts of money on scientific research and acquired enviable achievements. our company is the first state - run enterprise that invents metal shell heat eliminating technology, heat insulating mattress and multi - stabilizer driving technology to solve the heat eliminating problem of high - power energy saving lamps. we produce various types of energy saving lamps from 3w - 240w, which are widely used to instead of industrial lighting lamps like metallic halogen lamp, sodium lamp and auto - stabilized high - pressure hydrargyrum lamp. our company has passed the iso9001 : 2000 quality certification
聖路電器是一家專業生產大功率節能燈的高素質公司，在科研開發上進行了大量的投入並取得了卓越的成績，率先發明金屬外殼散熱隔熱空氣墊及多鎮流器推動技術，很好的解決了大功率節能燈的散熱問題，可生產3w240w的各型節能燈，廣泛用於替代金屬鹵化燈鈉燈自鎮流高壓汞燈等工業照明用燈。On one hand, is the product of beam waist radius and half divergence angle, wavelength is not involved. so there is possibility to compare the acutal focusing ability among laser beams with different wavelength. on the other hand, is a calculated result by measuring experiment, and it is more brief and persuadable than m 2factor, since the latter one is a ratio with basic mode gauss beam
論文研究論證了用值評價激光光束質量的實際意義在於兩個方面，一方面它僅僅包含了光束束寬和發散角，不涉及波長的因素，使不同波長激光束的可加工能力具有可比性;另一方面，值是根據對光束傳輸路徑上不同位置處束寬實際測量結果的計算值，比其在與基模高斯光束進行比值計算得到的m2因子更簡潔、更有說服力。On the basics of briefly summarizing the research and application presents of building coatings and nano - composite building coatings in domestic and overseas, presented a creative approach of modified exterior building latex coatings applying inorganic nano - powders and its " compound. systematically studied the effect of factors such as nano - materials " category, additive capacity, dispersing method on the behavior of exterior building coatings " weathering resistance, scratch resistance, water resistance and alkaline resistance etc. studying on uv - vis optical property of nano - powder materials and its " compounds turned up that nano - tio2, nano - sio2, nano - zno have excellent characteristics to uv shielding ; dispersing system of polybasic nano - composite materials owned higher uv shielding capability than single disperse system
本文在簡要敘述國內外建築塗料和納米復合建築塗料的應用研究現狀的基礎上，提出了使用無機納米粉體及其復合材料改性建築外墻乳膠漆的創新思路，系統地研究了納米粉體材料的種類、添加量、分散方式等因素對外墻乳膠漆耐候性、耐洗刷性以及耐水、耐堿性等性能的影響，成功地開發了納米改性建築外墻乳膠漆產品，並完成了外墻乳膠漆用納米助劑的初步開發工作。This laser poss characteristic : t he output power attains 500w ; laser energy instability less than 2 % ; laser radiation angle : about 3. 5mrad. design a sort of new - style laser cutting head, using this equipment can carry out trepanning and percussion drilling processing
這臺激光器所達到的參數為:輸出功率達到500w ;激光能量不穩定度: < 2 % ;激光的發散角: 3 . 5mrad 。Through the approach of investigative questionnaire and ability examination, considering both teachers " teaching practice in senior high school and students " need in analyzing and resolving problem, taking the method of fixing the quality and quantity, we make a demonstration research. at last, we draw a conclusion that the 19 manifestations of chemistry ability can be reduced to three levels : the basal level, called repeating thinking, includes distinguishing and judging the chemical fact and relations of quantity in chemical reaction, comparing and summarizing the chemistry fundamental knowledge ; innovative thinking level includes illogical thinking and logical thinking. illogical thinking mainly contains intuition, association and space imagination of micro - particle
通過調查問卷、能力測試等途徑，結合教師在中學化學的教學實踐和學生在分析、解決問題的實際需要，採用定性與定量結合的方法，進行實證研究，得出結論：化學學科能力的19種表現形式歸納為3個層次：最基礎的再造性思維能力層次包括對化學事實和化學反應中量的關系的識別和判斷、對化學基礎知識的比較概括；以培養創新能力為核心的創造性思維層次包括化學直覺思維、聯想、對微觀粒子的空間想象為主的非邏輯思維和靈活運用已學的化學知識通過分析、綜合地解決問題為主的邏輯思維；化學實驗能力層次是化學學科能力的最高層次，它以思維能力為基礎，集中體現了化學教學的基本特徵，實驗能力層次包括：選用實驗方法和設計實驗方案，對實驗的評價，研究和處理實驗事實、資料、數據，發現規律，表達實驗及其結果，最終解決問題的能力和發散思維。The equation for the quasi - continuous atom laser beam wave - function is given by schrodinger equation, the beam width, divergence curvature radius and quality factor were introduced to represent the atom laser beam whose transverse potential could be separated. for the conservative quality factor system in some direction, we can ge t the propagator of abcd formulation
本文在含時量子系統傳播子的abcd形式理論的基礎上，引入某一方向的束寬、發散角、曲率半徑和品質因子等光束傳輸參數來表徵橫向勢能滿足x和y分量相互獨立的原子激光的傳輸。After the integrated study of various boundary hydraulic conditions and field hydraulic conditions, a new method that the hydraulic conditions of seepage can be classified as three boundary conditions and three field conditions is presented. the variational expressions of various hydraulic conditions in seepage problems are deduced based on minimum energy dissipation principle, and the variational principles of seepage problems are enriched and developed
文中在綜合分析了多孔介質滲流問題各類邊界條件和源（匯）條件的基礎上，提出將滲流問題的水力條件劃分為三類邊界條件和三類源（匯）條件；基於最小能量耗散原理推導了滲流問題中各類水力條件的變分表達，豐富並發展了滲流問題變分原理。Based on the results of experimental research, we can find that the construction method of joints zone are feasible and safe, the joints between concrete - filled steel tubular core columns and prestressed concrete beams have good ductility and good energy dissipation, and the concrete - filled steel tubular core columns can raise the shear strength of core area of joints and the bending strength of the column ends
試驗研究發現，針對該節點所設計的構造處理方式是可行的、安全的，鋼管混凝土核心柱與預應力混凝土梁框架節點有著很好的延性和能量耗散能力，由於柱為鋼管混凝土核心柱，大大提高了節點核心區的抗剪承載力，同時也使柱端抗彎承載力得到加強。In order to exhibit the application of the method of porous media macroscopical geometric classification and minimum energy dissipation, the combination system between one - dimension pipeline media and three - dimension block media is tried to simulate the destroying and developing process of soil piping erosion
為了進一步展示多孔介質宏觀幾何分類方法及最小能量耗散原理的應用，文中還嘗試採用具有一維性質的管道介質與具有三維性質的塊體介質組合體系進行了土體管涌破壞發展過程的模擬。In this project we use etching method x - ray transmission and tem observe and study the form mechanism of cell structure and linear structure ; use sem observe cell structure directly and evaluate effect to the electrical properties of substrate ; at last, use high resolution tem and eds to observe and identify the nature of microdefects
發現幾乎所有高位錯密度的si - gaas單晶的表層都具有網路狀胞狀結構或系屬結構，首次對該胞狀結構和系屬結構的形成機制進行了研究；直接觀察微缺陷，配合eds （能量色散譜）鑒定si - gaas中微缺陷的物理本質，同時分析其產生原因，討論與位錯的相互作用。The work of this dissertation is mainly as follows : 1. systemically introduce and evaluate the advance of studies on damage models of reinforced concrete on material, member and structure level ; 2. by inputing earthquake wave for member model, analyse dissipating energy process and development process of structure damage and discuss relation between structure damage and pga, time of earthquake motion
本文的主要內容如下： 1 ）系統地總結當前鋼筋混凝土損傷理論在基於材料、構件和結構層次的研究進展及其評價； 2 ）通過桿系模型對結構輸入實際地震動，分析結構在地震作用下能量耗散過程以及結構損傷的發展過程，並討論結構損傷和地震動三要素（主要是加速度和持時）的關系。As surface waves propagate from deep to shallow water, the wave will take series of transformation including shoaling, refraction, diffraction, reflection, breaking and energy dissipation due to the effect of topography and various hydraulic structures
波浪由深海向海岸傳播過程中，由於地形和水工建築物等因素的影響，將發生淺水變形、折射、繞射、反射、破碎以及能量耗散等波浪變形現象。Standard test method for trace element analysis of hazardous waste fuel by energy - dispersive x - ray fluorescence spectrometry
能量發散x射線熒光光譜法分析危險廢油中痕量元素的標準試驗方法As an exploratory study of undergraduates " technical creativity, the paper discusses the implication of the terms " creativity " and " technical creativity ", makes a probe into the influential factors to the development of creativity and technical creativity of people, and carries out an investigation to a large number of juniors from six universities of china with " technical creativity scale " and " creativity attitude survey ", in which the differences between majors, universities, genders and family backgrounds are treated as independent factors, to know undergraduates " learning motivation, interest and participation in scientific and technical activities, to understand their belief, outlook of value and attitude to creativity achievement, and to find out their capabilities for technical comprehension, mental folding, numerical creativity thinking and practical creativity thinking
本研究採用文獻法對創造力、技術創造力的含義和影響因素進行了研究，並採用「技術創造力測量量表」和「創造力態度量表」對國內六所大學的部分三年級大學生進行了問卷調查和測試。以了解大學生對科學知識的渴求程度與探究興趣、對技術活動的參與情況、對創造性成就的態度、信仰和價值觀；探討大學生技術操作和物理感受性方面的能力、空間表徵能力，發散思維能力和數理邏輯思維能力的水平及特徵。此外，本研究還對理工科與文科學生在技術創造力方面的專業差異和校間差異，大學生技術創造力的性別差異和家庭背景差異進行了研究。From the view of energy dissipation, this paper study optimized assignment of sensor / actuator units with multipeak optimization algorithm - genetic algorithm
本文從能量耗散觀點出發，利用多峰值優化演算法? ?遺傳演算法對傳感作動單元的優化配置問題進行了研究。It is showed by numerical calculation that the waves amplify becomes great and the width of waves becomes narrow after the collision or chase of two solitary gravitational waves. the results indicate that the nonlinear interaction between the gravitational waves may be one of the causes for outbreak of severe convective weather. furthermore, by comparing once shear with second shear, we find that it is easier to breaking up or energy dispersion for the solitary gravitational waves by the nonlinear action when the distributing of basic flow is once shear
引入實際基本氣流，分別討論了具有垂直一次切變和二次切變流時兩個非線性重力波相互作用的數值計算過程，得到兩個重力波波包相遇或相追都會使波包的振幅增加、波寬變窄；進一步分析表明，有高空急流存在的條件下，非線性重力波的相互作用更易使波包破碎、能量頻散，激發強對流天氣的形成。分享友人