相位常量 的英文怎麼說

中文拼音 [xiāngwèichángliáng]
相位常量 英文
phase constant
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • 相位 : phase position; phase
  1. The compositions of usual elements and rare earth elements and inclusions of corundum megacrysts related to alkali basalt in changle, shandong province, are analyzed. in the main parts of corundum megacrysts are a large number of fluid - melting inclusions, zircon, ta - columbite inclusions, and in the central crystal core are a large number of melting inclusions. the corundum megacrysts were formed in different periods and different physical chemistry conditions. the crystal core was formed in magma system, and the main parts were formed in inhomogeneously geochemical conditions in which magam and fluid phases coexisted

    分析山東昌樂與堿性玄武巖有關的剛玉巨晶不同部元素、稀土元素及包裹體組成.剛玉巨晶的主體以大流體?熔體包裹體、鋯石、鈮(鉭)鐵礦包裹體為主,而巨晶中的「晶核」部則以大的熔體包裹體為主,反映研究區的剛玉巨晶是在不同的階段形成的.剛玉「晶核」以及「銅皮剛玉」形成於熔體為主的體系中,而主體剛玉則形成於熔體?流體過渡的急劇變化的不均一的地球化學環境中
  2. The near - stoichiometri litao3 has excellent speciality, such as high efficient conversion, tune conveniency, biger size and high damnify value etc. in this dissertation, the theory of quasi - phase - matched ( qpm ) technology and optical parametric oscillation ( opo ) was expatiated and studied first

    近化學計比litao3 ( slt )晶體在做參振蕩方面具有轉換效率高、調諧方便、尺寸大、損傷閾值高等非好的特性。本文首先對準匹配技術和光學參震蕩器的理論進行了闡述和分析。
  3. Internal bio - field tumor thermotherapy system : internal bio - field thermotherapy, in abbrevitation, uses two high frequency sources with different frequencies and phases to cross act human body. it is kind of therapeutic method which could heat the whole or locals with physical energy, without damages of normal tissue, while directly inducing apoptpsis of tumoe cells

    內生場熱療系統是採用兩組不同頻率的高頻源交叉作用於人體,利用物理能加熱全身或局部,既不損傷正組織,又使腫瘤細胞凋亡的一種治療方法。
  4. 1 ) based on the theory and application of gps, the construction and application of the rtk ( real time kinematic ) - gps carrier phase measurement ( so called rtk ) are studied. the differences between messages type 18 / 19 and type 20 / 21 are compared by analysing rtcm sc - 104 messages, and the advantages and disadvantages of using those types are pointed out. 2 ) the various factors, which influence positioning accuracy, are analyzed in this paper

    論文的主要內容和研究成果如下: 1 )簡要介紹了gps的原理和應用,論述了rtk ( realtimekinematic ) - gps載波(通簡稱為rtk )系統的組成和工作原理,通過對rtcmsc - 104電文的分析,比較了rtk電文type18 19與type20 21的差別,指出分別使用這兩電文實現rtk的利與弊。
  5. The theoretical part mainly refers to studies of optical parametric chirped pulse amplification. we analyze some basic theories of opcpa, such as phase matching, parametric bandwidth, walk - off in space and time, gain property and so on, and compare the basic properties of bbo, lbo and kdp

    理論部分主要是對新興的光參啁啾脈沖放大技術的匹配、參范圍、時空走離、增益及帶寬特性等基礎理論進行了分析,並對用的bbo 、 lbo和kdp基礎特性進行了比較分析,這對于光參啁啾脈沖放大系統的設計具有一定的實際意義。
  6. Integer ambiguity resolution is the key problem of gps based real - time attitude determination system which use double differencing carrier phase observables

    Gps姿態測採用雙差載波觀測,因此整周模糊值解算成為gps實時姿態測的關鍵問題。
  7. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導比:電性能當;波導管結構更加簡單,容易加工,便於安裝.文中給出圓突-矩形波導中主模場,圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣,縫隙電壓為同分佈,輸入端匹配.實際測了天線輸入端電壓駐波比和h面方向圖,理論與實驗吻合
  8. Finally, this dissertation discusses the application of traffic control method in improving measures of urban transportation environment. the illustration example indicates that, by reasonably limiting the speed of urban vehicles and alternating the signals at grade intersection, the total emission of motor vehicles can be reduced while assuring normal transportation operation

    本文最後討論交通管理方法在城市交通環境改善方面的作用,通過示例分析,合理地進行車輛限速和對差合理微調可以在保證交通正運行的條件下減少機動車污染物排放
  9. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準匹配技術有其獨特的優勢,可以利用非線性光學晶體的最大二階極化張,如ppln 、 pplt 、 ppktp用的非線性極化張都是d _ ( 33 ) ,其有效非線性系數高出普通非線性光學介質(如bbo 、 lbo 、 ktp )一個數級,而且可以人為靈活設計調制周期,通過周期設計其頻率變換范圍可以覆蓋準匹配介質的整個透明波段,選擇無走離效應,解決了規pm難以解決的問題,拓寬了非線性晶體的應用范圍,極大地提高了頻率轉換效率,已成為非線性光學材料和固體激光器的研究熱點之一。
  10. Conventional optical phase retarders are mostly designed by birefringent material. the refractive indices depend on the wavelength so strongly that the retardation is close to wavelength, here we call this dependent relationship the birefringent dispersion of material. this is the reason why conventional optical phase retarders are mostly applied to a single wavelength but ca n ' t be used to varied wavelength, so they are inconvenient to handle

    規的光延遲器是由雙折射材料製成的,由於材料的雙折射率同波長密切關,使其產生的延遲也同波長具有嚴格的一一對應關系(即材料的色散現象) ,因而延遲片多用於單一波長,不同波長之間使用不可兼顧,這在使用中帶來諸多的不便。
  11. The mathematical expression, which is used to calculate the variable phase center based on the mom, is derived first in the paper. it is proved that the variable phase center of the lpda is not superposition in the e - plane and the h - plane

    文中採用矩法,首次導出了基於矩法多分段計算可變中心的表達式,證明了偵測合一系統中用的對數周期偶子天線( lpda )在e面和h面的可變中心不重合。
  12. At present the usual methods of liquid level measurement is mostly based on the measurement and transmission of electrical signals, so it brings inflammable and explosive problems. according to measurement requirement under the special circumstance, the author of this paper presents the oil tank monitoring system based on the optical fiber technology

    目前用的液方法大多以電信號進行測和傳輸,因而帶來了防燃防爆等問題。本文針對特殊工況下的測現場要求,提出基於光纖傳感技術的油罐監測系統,它與傳統的測系統比,測現場完全無電,可應用於易燃易爆場合。
  13. So power systems harmonic analysis is a significant aspect of power systems research. power system harmonic analysis was realized usually with fast fourier transform ( fft ), but the method exits spectrum leakage, and can not analyse all harmonic parameters exactly, such as frequency, amplitude and phase, in particular has big phase error

    電力系統諧波分析通都是通過快速傅立葉變換( fft )實現的,但是這種方法存在柵欄效應和頻譜泄漏,使計算出的諧波參數即頻率、幅值和不準,尤其是誤差很大,無法滿足準確的諧波測要求。
  14. In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.

    在混凝土結構的施工及使用過程中,由於受其自身及外界各種因素的影響,會產生一些缺陷,對結構物的承載能力和耐久性造成嚴重影響,採用無損檢測技術進行質檢測和健康診斷,這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作,重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍,運用動力有限元數值模擬其檢測過程,探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵,研究了不同裂縫深度下首波變化規律,得出了反轉臨界點與裂縫深度之間的關系,這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術,它是利用聲波穿透被檢測體獲取聲波接收時間,來進行計算機反演成像的技術。
  15. A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted

    Thz ( 10 ~ ( 12 ) hz )時域光譜技術是20世紀90年代發展起來的一種新型的光譜測技術,它使用頻率介於遠紅外和微波之間的干電磁輻射脈沖作為探測源,利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形,通過傅立葉變換得到測信號振幅和的光譜分佈,進而獲得材料在thz波段的復介電數,即色散及吸收等信息。
  16. A gis pd measuring system is established, including a conventional pd measurement system, uhf detecting system and a pd spectrum system. we can obtain pd signal characters by this system, such as uhf transient signal waveforms, uhf demodulating signal waveforms, the pd phase angle in ac, pd spectrum, and discharge quantities

    建立了gis局部放電測系統,其中包括:規局部放電測系統、超高頻檢波測系統和放電頻譜測系統等,通過測系統得到了gis內局部放電的超高頻暫態信號波形、檢波信號波形、工頻分佈、頻譜特徵以及規視在放電等特徵。
  17. And the effect of the work order of the two propellant units to the performance of the trajectory and the matching conditions to obtain the theoretical optimum trajectory is discussed too. according to the ballistic speciality of a hybrid base - bleed - rocket extended - range projectile during base - bleed and rocket work, its physical parameter is non - constant, such as its mass position of mass centre polar and equatorial moment of inertia. after a mulriple ballistic model of constant physical parameter is established, a mulriple ballistic model of continuous and non - continuous physical parameter is educed and the program is compiled, the theoretical tool is constructed to study othe other pivotal technology of a hybrid base - bleed - rocket extended - range projectile

    本文根據底排?火箭復合增程彈其底排燃減阻和火箭助推階段的質、質心置、轉動慣等結構特徵參變化的彈道特徵,在建立底排?火箭復合增程彈結構特徵參為不變的多元彈道計算模型基礎上,導出了結構特徵參為連續變化和非連續變化的底排?火箭復合增程彈多元彈道計算模型,編制了應的計算機數值分析程序,構建了研究底排?火箭復合增程彈其它關鍵技術的理論工具。
  18. But how to eliminate the influence of direct coupling signal is the hardest problem when using the induction logging tool and array induction logging tool. based on induction logging, phase induction logging is studied to avoid the above problem, which makes the apparatus ’ s research and manufacturing easier

    因此,在感應測井基礎上提出了測場的對特性的陣列感應測井,避開了在感應測井中非棘手的直耦對消問題,大大降低了儀器研發的難度。
  19. In traditional low bit - rate speech coding, considering that ears are not sensitive to phase information, the phase information is often neglected, and this will result in coarse and harsh speech quality, and it even may lead to inflection in pitch

    在傳統的低比特率語音編碼中,考慮到人耳對信息不敏感而經忽略信息,這將導致語音粗糙、刺耳甚至音調發生改變。為了獲得高質的聲碼器,語音的信息是不能不考慮的。
  20. The method can be used widely in high precision frequency, time and phase measurement. combined with a kind of precise, constant gate ' s measuring method that is derived from the several period synchronization measuring method, high speed, high precision, successive frequency measurement can be fulfilled. it adapts well to the sensor signal measurement of non - frequency

    此方法可以廣泛地應用於高精度頻率、時間及中,將其與一種從多周期同步法發展而來的高精度、定閘門測結合,可實現高速、高精度、連續頻率測,而這一點非適合非頻率傳感信號的測
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