曲輻 的英文怎麼說
中文拼音 [qūfú]
曲輻
英文
curved spoke-
Also, they were favor for further explanations and canalization. the results of solar heating rate and infrared cooling rate and the model output were displayed as data forms and curves in the paper
文中將加熱率和冷卻率的計算結果以及與之相關的模式計算結果(可見光波段的大氣輻射收支和紅外波段的大氣輻射收支)以數據表和曲線圖的形式列出。In this article based on vibration theory of the flexural plate, the frequency equation, the equivalent mass and radiation impedance are derived and further, design theory is introduced
本文從薄圓板彎曲振動理論出發,推導了這種階梯圓盤的頻率方程、等效質量、等效彈性和輻射阻抗,並進而提出了這種階梯圓盤的一般設計方法。The curve should be three-dimensional one, with the high point in the center and curved lines radiating in all directions, somewhat as streamers from a maypole.
曲線應該是三維的,其高點在中心,向各個方向輻射,有些象從五月柱上散出的彩帶。Abstract : the esterification of phthalic acid and ethylene glycol under microwave field was studied. the results showed that it could get high yield of product and need less fime to complete the reaction
文摘:觀測了鄰苯二甲酸及乙二醇在微波輻照下的升溫曲線,並研究了鄰苯二甲酸和乙二醇在微波輻照下的酯化反應,結果表明,微波輻照下的酯化反應行為優于常規條件(電爐加熱)下的酯化反應行為。In this study, lexa mutant of deinococcus radiodurans xe has been successfully constructed. the survival curve of this strain was measured using colony formation assay after treatment with different doses of radiation and different times of mmc
本研究利用已構建的抗輻射菌lexa基因突變體菌株xe ,經受不同劑量射線照射和不同時間的mmc作用,平板菌落計數,繪制存活曲線。The egg envelopes are composed of secondary envelope and primary envelope which comprise zona radiatal, zona radiata2 and zona radiata3, and there are tube radiata and flexural sub - elasticity envelope which is vertical with plasma membrane in every zona radiata
唇(魚骨)卵膜由初級卵膜和次級卵膜組成,初級卵膜具三層輻射帶,帶內具彎曲的彈性亞膜和輻射管,次級卵膜膠質狀,外具濃密的顆粒。About 80s after fertilization, the angle of sub - elasticity envelope expands. 110s, sub - elasticity envelope in zona radiatal becomes parallel with plasma membrane, later, the same phenomenon happen in zona radiata2 and zona radiata3, which result in the fertilization envelopes ( egg envelopes ) outspreading ; 140min after fertilization, the fertilization envelopes come into being
受精80s ,彈性亞膜彎曲的角度增加, 110s ,第一層輻射帶的彈性亞膜拉直, 240s ,第一層和部分第二層輻射帶彈性亞膜傾斜,第三層輻射帶彈性亞膜拉直,受精膜(卵膜)開始外舉, 140min受精膜完全舉起。In the calculation, the energy deposited in aluminum by proton beams is first calculated by m - c simulation, then a 1 - d elastic - plastic fluid model is used to simulate the following thermal shock wave process as a result of thermal - mechanical effect by proton irradiation. the shape of proton is taken as a rectangle pulse with a width of 0. 1 microseconds, the energy flux o
對於3mm的鋁材料,入射粒子束為矩形脈沖(脈寬為0 . 1 s )的情況下,計算得到了電子束、質子束輻照引起鋁材料斷裂的能注量閾值與入射電子束、質子束能量的關系曲線,該曲線存在最小值,分別對應6mev的質子束的34 . 7j cm ~ 2和0 . 35mev電子束的42 . 1j cm ~ 2 。However, in 1974, hawking applied quantum field theory to the curved spacetime around the event horizon and discovered that black holes can emit thermal radiation, known as hawking radiation
然而,在1974年,霍金將量子場理論運用到活動視界周圍的彎曲時空上而發現黑洞能發出熱輻射,就是熟知的霍金輻射。This era and its dramatic coda have now been probed by high - precision observations of the fossil radiation [ see “ the cosmic symphony, ” on page 44 ]
現在用以探索古老輻射的高精密度觀測,就是在檢驗這個與輻射脫鉤的時期,以及它那戲劇性的尾聲(見46頁聆聽宇宙交響曲) 。We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程,詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬,並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。The findings show that there exists overlap between macroscale convergence and warm advection if the degree of clock - wise turn dosen " t keep constant on both sides of zero doppler velocity contour about the near range of the observational site. the overlap produces vertical vapor transport and upward convergence movement favorable for formation and continuation of rain gush
結果表明:零速度帶在測站近距離兩側的彎曲程度不一致是暖平流與大尺度輻合運動的迭加所造成,這一結構為暴雨產生和維持提供了有利的水汽垂直輸送和輻合上升運動。In this paper, a novel folded groove waveguide slow - wave structure is proposed with the foundation of folded waveguide and grooved guide. high frequency characteristics of such sws are also analyzed in this paper. the main works are listed as follows : 1
本論文以曲折波導慢波系統和槽波導傳輸線為基礎,綜合二者的優點和目前曲折波導在thz輻射振蕩器中遇到的問題,提出一種新型的曲折槽波導慢波系統的概念,並對這種新型慢波結構的高頻特性進行了詳細的研究。Based on the semi - vector wave equation under cylindrical coordinate system, the mode distribution and complex propagation constant in bent waveguides were computed by a finite difference method with perfectly matched layer ( pml ) boundary condition
摘要以柱坐標下的半矢量波動方程為基礎,採用基於完美匹配層( pml )邊界條件的有限差分方法,對彎曲波導進行模式求解,進而得到波導彎曲引起的輻射損耗。More often than not the combustion noise refers to the noise radiated from the cylinder cap, piston, rod, crankshaft to the engine body propelled by the pressure vibration generated out of the combustion inside the cylinder
燃燒噪聲和機械噪聲很難嚴格區分,通常將由於氣缸內燃燒所形成的壓力振動通過缸蓋、活塞-連桿-曲軸-機體向外輻射的噪聲稱之為燃燒噪聲。It is very difficult to analyze flame radiation in the cylinder of a diesel engine by theoretical method since flame radiation is a function of many parameters, such as the combustion process, the geometrical description of the chamber, the soot formation and oxidation processes, the soot radiant temperature and soot absorption coefficient. the radiant property of the flame in a cylinder is dependent on the combustion process. but the thermodynamic state of real engine cycles can be analyzed from the pressure - volume diagrams in the cylinder. thus a new thermodynamic computational model is set up for the flame radiation in the cylinder of a diesel engine based on the indirect relationship between the flame radiation and the pressure - volume diagram of the combustion process in this paper. the flame radiant heat flux in the cylinder of a di diesel engine is calculated with the variation of crank angle by this model. compared with measured values, the result of the computational values shows the model is available to represent the effects of flame radiation
柴油機缸內的火焰輻射受諸多因素的影響,用理論分析法來確定它是相當困難的,由於柴油機缸內火焰輻射特性依賴于缸內的燃燒過程,而燃燒過程中的實際熱力狀態又可用示功圖來分析,因此藉助於火焰輻射與缸內熱力參數之間的這種間接關系,建立了一種計算柴油機缸內火焰輻射傳熱的新模型,利用該模型對一臺直噴柴油機缸內火焰輻射熱流量隨曲軸轉角的變化情況進行了計算,將計算結果與實測結果進行了比較,表明該模型能較好預測缸內火焰輻射傳熱量。But to circular plate with large surface area, the vibrate modes generated is often so high that there is reverse phases existing, which result in a decrease in radiation impedance, electric - acoustic efficiency and the electric power, as well as poor directivity
然而對于輻射面積較大的彎曲振動圓盤,一般激勵的振動階數比較高,因此存在彎曲振動的反相區,導致換能器的輻射阻抗下降,電聲效率和聲功率降低以及指向性變差等問題。When compared with kds301 ( lexa + ), xe ( lexa - ) cells showed quite similar levels of survival curve to y - irradiation and mmc, indicating lexa gene had no effect on radiation resistance of deinococcus radiodurans. deinococcus radiodurans " lexa had no revelance with its extremely radioresistance. the recombinant plasmid pza172 was constructed by cloning the lexa gene of deinococcus radiodurans into the vector plasmid puc19 in the downstream of lacz promoter
對lexa基因突變體xe的研究表明,其輻射抗性與lexa基因野生型的抗輻射菌kd8301相近,存活曲線上均顯示有一個寬大的肩區,結果發現lexa基因的突變並沒有改變抗輻射菌的獨特抗性,說明lexa基因與輻射抗性無關。Via theory testify, bend loss has been neglected when curved radius is larger than 2mm
理論證明在彎曲半徑大於2mm的情況下,彎曲波導所引起的輻射損耗很小。Curved armed pulley
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