方向性增益 的英文怎麼說
中文拼音 [fāngxiàngxìngzēngyì]
方向性增益
英文
directional gain-
Firstly, some basic concepts are not clear, such as what is the status of the company under liquidation, how to define the action of the industrial - commercial authority ' s invalidation of the license of the company, whether or not the share holders can sue to disincorporate the company, is it legal to dissolve a company without liquidation, what is special liquidation, under what situation will a company be obliged to disincorporate, who will be responsible for liquidation after the dis incorporation, etc. secondly, some primary legislative principles about disincorporation and liquidation that are adopted in foreign countries are not established in china, such as a company must be liquidated before disincorporation except for acquisition, the company remains valid during the liquidation until it finishes the invalidation registration, an ordinary liquidation must be replaced by a special liquidation under the instruction of the court when there is an impediment or a fraud, the company should apply to the court for bankruptcy when it is found that its debt is over its asset during the liquidation, the number of people execute liquidation can be several or just one, companies applied for annulment shall be judged by the court and must be liquidated, etc. thirdly, china does n ' t have some of the fundamental rules that are specified in the laws of foreign countries, such as the rule of disincorporation registration, the rule that the company should sue to let the court judge for disincorporation if there is a deadlock between share holders, the rule of credit trade - off in special liquidation, the rule that people who execute the liquidation are jointly responsible for compensating the loss of the third party caused by their activities that are illegal or vicious, the rule of special liquidation, the rule of the representation of the people who execute the liquidation, the rule of the court supervising the liquidation in an inactive way, the rule of how long the accounts and documents should be kept after disincorporation, etc. because of the lack in research and legislation, the system for companies leaving the market is highly disorganized, which harmed the interest of the creditors and relevant people, increased the risk of market exchange, damaged the order of the market economy and the ethic of doing business, wasted the resources of the society, and impaired the authority and seriousness of the law
再次，國外立法上的一些基本制度我國沒有，如解散登記制度，股東出現僵局訴請法院判決解散制度，特別清算中的債權協定製度，清算人因違法或惡意對第三人承擔連帶賠償責任制度，司法特別清算制度，清算人的代表性制度，法院消極監督清算制度，帳薄及文件在公司解散后保存法定期限制度等。由於理論研究和立法的不足，造成了我國公司法人退出市場機制的嚴重混亂，損害了債權人和利害關系人的利益，增加了市場主體交易不安全感，破壞了市場經濟秩序和商業道德，浪費了社會資源，削弱了法律的權威性和嚴肅性。文章認為，完善我國公司解散和清算制度，應借鑒和引進發達國家的法學理論和法律制度，統一我國有關解散和清算立法，在基本概念、基本原則、基本制度、基本程序諸方面進行統一規范，填補立法空白，創設法院解散公司制度，廢除行政特別清算制度代之以司法特別清算制度，健全和嚴格違反清算規定的法律責任制度（包括民事責任，刑事責任，行政責任，改變現行行政處罰范圍偏廣，民事賠償范圍偏窄，刑事追究空白太多的不協調狀況） ，從而構築起科學的公司解散和清算制度，使之符合我國經濟生活的客觀需求，符合市場經濟發展的基本方向，並與國外立法通例趨同。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。The characters of this antenna lie in three points : using yagi - uda antenna to obtain antenna gain through the radial direction ; making full use of the space of the base station along the z - axis direction to get array gain ; arranging the antenna array properly to achieve pattern diversity in azimuth plane
其特點集中體現在三個方面:在天線徑向通過八木天線的形式獲得增益;充分利用基站空間在z向組成陣列獲取陣列增益;利用開關八木天線方向圖可重構的特性，通過合理的布局，在方位面內實現角度分集。The antenna gain, directivity and reflection coefficient are calculated via finite element method in hfss. spline interpolation and polynomial curve fitting are applied to construct diagrams illustrating the capsulation characteristics. some general conclusions of interest are obtained
探討了各個封裝參數對輸入端反射系數、方向性系數、效率和增益等性能指標的影響，得到一些規律性結論，為射頻振子天線的封裝應用提供了參考性的建議，並指出了進一步研究的方向。The result shows that the pbg structure has obvious character of forbidden band at the suitable size, and can be designed to good performance microwave filter. the pbg structure have the character of high resistance, that can reinforce the forward radiation, and reduce the backward radiation, increase the directivity, improve the gain and ameliorate the performance of the antenna. in addition, the pbg structure can also greatly increase the isolation and significantly decrease the coupling between the antenna elements
研究結果表面，取合適的尺寸時， pbg結構具有明顯的禁帶特性，可以設計成性能良好的微波濾波器； pbg結構具有高阻特性，把這種特性用於微波天線時， pbg結構可以加強前向輻射，減小後向輻射，增大天線的方向性系數，從而提高天線的增益，改善天線的性能，另外， pbg結構還可以大大提高天線單元之間的隔離度，顯著減小天線單元間的耦合。Result : the decision tree consisted of multiple levels of branches and color blocks to present the output and the sequence of information gathered ( e. g., length of stay > disease classification > mode of departure from the hospital > triage > medical specific ) and reflected the degree to which the distribution of medical expenses were influenced
結果：決策樹以多層次之樹枝分佈及顏色區塊等視覺化方式呈現研究結果；其中資訊增益順序為（滯留時間疾病分類離院后動向檢傷分級科別） ，該資訊增益之順序也代表屬性影響醫療費用分佈之程度，意即滯留時間為決定急診病色醫療費用多寡之首要因素。A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )
設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。Regards as the major part of international trade, intra - industry trade is going to be the tendency of the foreign trade with the growing of economy. through the analyze of various beneficial results together with the growth in intra - industry trade and the change in industrial structure, this thesis uses the theories concerned with intra - industry trade, including economies of scale, imperfect competition, product differentiation, product - cycle hypothesis, etc. ; point out the tendency of international trade ; and show the possibility and essentiality of the development of intra - industry, in our country
本文通過對產業內貿易各種經濟福利效應的分析，結合我國產業內貿易的發展，以及產業結構的變化，運用產業內貿易中的相關理論，包括規模收益遞增理論、不完全競爭理論、產品的差異化理論、產品生命周期理論等等，指出產業內貿易是我國國際貿易發展的方向，同時也對我國產業結構的升級起著一定的推動作用，從而說明我國發展產業內貿易的可能性和必要性。And the author believes that the essence of the legality is to govern by the constitution and the core of the constitutional government is the constitutional action because the constitutional action is the most significant regime that ensures the system of " rights checking power " and it is indispensable to the protection of citizens " basic rights. therefore, the studying of the feasibility of the chinese constitutional action possesses great theoretical and practical significance. firstly, it can enrich and perfect the present chinese judicial system and provide beneficial theoretical basis for the final establishments of the system of constitutional action
因此，研究憲法訴訟在我國的可能性，具有十分重大的理論和現實意義：一是可以豐富和完善我國現有的訴訟制度，為憲法訴訟制度的最終確立，提供有益的理論依據；二是揭開憲法「高不可攀」的神秘面紗，彰顯憲法本來所具有的區別於一般法律、法規的特殊法律功能及其最高法律價值；三是為公民基本權利的實現，構築最終性的、最有效的程序屏障；四是可以為進一步深化司法體制改革指明方向，增強人們對司法體制改革的信心，培育法律信仰乃至憲法信仰。The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,
用fdtd方法並結合pml吸收邊界條件，我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁（光子）晶體貼片天線的性能進行了研究，結果證明加了這種新的電磁晶體覆層結構以後，天線的波束收攏很多，並且向前輻射的增益大大提高，與普通天線相比，天線的e面和h面方向圖上向前輻射的增益均提高了約6db ，另外，該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ，與該物理尺寸天線的方向性系數的理論極限值（ 11 . 9db ）相差0 . 4db ，該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ，比qiu等人設計的電磁晶體天線的相應差值減少了約1The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。The observer using the coupling of axial and lateral and having feedback of acceleration is investigated. this method can estimate the angle of attack and the sideslip angle synchronously. an optimization named extrem is applied to optimize the feedback plus matrix
研究了採用縱橫向耦合且具有線加速度反饋的非線性觀測器方法，該方法能夠同時估計迎角和側滑角參數，並採用extrem優化方法對其反饋參數增益參數進行了優化設計。Business valuation based on modern economy is one of the most difficult and comprehensive professional work in asset appraisal, but also stands for the trend of the appraisal. as china implemented planned economy all the long in the past years, the concept of business value was proposed later than other advanced countries. the study on the theory and method of business valuation we made is relatively backward. all these lead to that we merely use cost method in practice. with the improvement of market economy, the validity of cost method is challenged. hunting for appraisal methods suitable for china circumstance has become more and more urgent. this thesis presents its own opinion on the adjustment of the basic frame of theory of business valuation. for the first time, it puts systems theory into the study of the theory base, and believes that the enterprise as a compound entity has higher efficiency than the sum of its constituent, and then proposes new appraisal assumption. aiming at the obscure understan ding, it analyses a group of conception related to business valuation. after giving a whole analysis and study, this thesis indicates the income approach which emphasizes earning - capacity of a enterprise should become the correct choice of china, and makes a further study on the origin - features and feasibility of this method
植根于現代經濟的企業價值評估是資產評估中綜合性最強，技術難度最高的業務之一，也是評估業未來的發展方向，由於我國過去長期實行計劃經濟體制，企業價值概念的提出和運用時間較晚，缺少現代經營理念的積累，企業價值評估的理論與方法的研究比較滯后。本文試圖以理性分析和案例分析相結合的方法，系統研究和分析企業價值評估的基礎理論及其現實條件下，適應我國經濟發展的評估方法，以期為構建有中國特色的企業價值評估理論和方法體系做一些有益的探索。文章以企業價值評估的基本概念為起點，在對眾多關于企業性質的學說和理論觀點進行概括抽象的基礎上，指出了整體性、持續經營和盈利性是企業的重要特徵，依據企業的整體性運用系統方法闡明了企業的價值大於組成企業的單項資產價值之和，據此提出了反映企業價值評估特點的有機組合增殖假設；依據盈利性的特點，強調了企業價值評估的核心應為企業的獲利能力，而不是組建企業的成本；對企業價值、企業價值評估含義、特點的論述以及對相關概念的辨析表明了作者的個人觀點和文章的基本定位，而從評估目的入手劃分的以產權變動為目的的企業價值評估和以財務決策為目的的企業價值評估與企業價值評估的假設、評估核心共同決定了評估方法的選用。The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡（ nolm ）相結合的方案來對信號脈沖進行壓縮整形，模擬顯示，在調節系統合適參數的情況下，波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時，最後可以得到放大的高質量超簡訊號光脈沖；在基於soa的交叉增益調制（ xgm ）全光波長轉換中，採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低，波長向下轉換的距離和反轉光的峰值能量都得到明顯提高，降低了利用交叉增益調制（ xgm ）波長轉換中對波長精度的要求，從而提高了波長轉換的靈和性。With the development of electronic warfare system, now in order to get better characteristics of the twt, such as the power and gain, the designers do much more work ; and the meantime take several ways to minimize the twt
近年來，隨著電子戰系統的發展，人們不斷地對行波管的功率、增益等性能指標提出更高的要求;同時，也要求行波管在物理尺寸上向小型化方向發展。Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too
本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。Previous research on the ad hoc network almost aim at omnidirectional antenna of all receivers and transmitters, or as a default attribution. in my thesis, firstly i describe the advantages of the directional antenna at many aspects which including spatial division multiple access ( sdma ), the antenna gain, anti - interference etc. and analyze the possibility about the directional antenna used for the ad hoc networks, secondly i study its multiple access and routine protocols using the directional antenna. and compare the protocol difference and network " performance between omnidirectional and directional antenna in particular environment
首先闡述了定向天線在網路空分復用（ sdma ） 、天線增益、抗干擾等方面的的優勢，分析了定向天線用於移動自組網的可行性，接著重點研究了基於定向天線的多址接入協議和路由協議，分析了與全向天線在組網和協議實現中的異同點和優缺點，並對特定的環境下的網路性能作了對比。Developing foundation facilities of xi ' an and managing environment had been regarded as the direction of the urban spatial structure optimization. accoroding to the analysis of developing background of xi ' an, the optimization thinking had been pointed out. the urban competitiveness should have perfect urban foundation facilities, daintily urban environment and trenchancy urban visualize, which can accelerate industry to centralize and increase the urban competitiveness
通過對西安市近年來制定的城市經濟發展重點、城市空間發展戰略及城市規劃新理念等城市發展背景的分析，結合西安城市空間結構調整和優化的方向，提出西安城市空間結構優化的思路為：西安城市空間結構應具有基礎設施配套完善、生態環境舒適怡人和城市形象個性鮮明的城市空間優勢，促進產業集群，實現空間結構社會競爭力和環境競爭力大幅度改善，提高城市經濟效益，增強西安城市競爭力。On the base of the fujian power system that has the special configuration of " large power generator with small power system " in 2000, constructs power system models of fujian and fujian interconnected with other parts, does a lot of calculation and analysis and simulation, researches the security mechanism and rule of the fujian special power system interconnected with large power system. the above connection can keep security and stability and can make obvious benefits, but when the transmission power reach to excessive quantity the main power grid will increases interconnected flow - in or flow - out exchange power load. the power operation state tended to instability ; the infirmable interconnection make s the damp infirmable
本文以2000年前後具有「大機組小電網」特殊結構的福建電力系統為背景，建立了福建電力系統及其與外部互聯的數學模型，開展大量的模擬計算分析，研究了「大帆組小電網」電力系統與大容量電力系統互聯偏弱的安全穩定性的機理和規律：前述互聯可以安全穩定運行，取得顯著效益，當傳輸功率達到一定量后，主網架增加了送出或吸收互聯交換功率的負載，系統運行狀態向穩定性水平有所下降的方向轉移；聯絡偏弱使阻尼偏弱，聯絡線小幅低頻振蕩和大幅低頻振蕩易被激發，聯絡線一旦重載斷開，系統高周或低調嚴重。The conclusion is that the vectorial effect influences more on the small - scale self - focusing than the non - paraxial effect. a new growing mode existing when the modulation on the direction of polarization is discussed in this chapter
同時與極化方向平行的新的增益模式有可能出現並可以在波長的尺度上產生自聚焦，文章討論了這種可能性。分享友人