線放射源 的英文怎麼說
中文拼音 [xiànfàngshèyuán]
線放射源
英文
line source- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 放 : releaseset freelet go
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 源 : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
- 放射 : radiate; emit; blas; radiation; emission; shooting; shedding; abjection; emanation; effluence
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As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system
功率放大器( pa )作為無線通信射頻發射機中不可缺少的關鍵電路,對于提高手機的功率效率、降低電源損耗、減小體積重量、延長通話時間有著舉足輕重的作用,而適用於恆包絡信號放大的e類功率放大器,更是在現代通信系統中佔有十分重要的地位。To find out how the polymerase and importin interact, stephen cusack, head of embl grenoble, and collaborators at the uhci, used the high intensity x - ray source of the european synchrotron radiation facility to generate a high - resolution image of the two proteins interacting with each other
為了揭示多聚酶和輸入蛋白是如何相互作用的格勒諾布爾歐洲細胞生物學實驗室主任及病毒宿主細胞相互作用部門的合作者斯蒂芬.庫薩克用歐洲同步加速器放射中心的高強度x線放射源產生了這兩種蛋白質相互作用的高解析度影象Energy from the sun gives warmth and sustains all life on earth. the sun also emits radiation of different wavelengths, among which is the invisible ultraviolet radiation
但大家可知道這熾熱的火球同時也在源源不絕地釋放著不同波長的輻射,其中包括我們看不見也觸摸不到的紫外線。Ultraviolet radiation from the sun energy from the sun gives warmth and sustains all life on earth. the sun also emits radiation of different wavelengths, among which is the invisible ultraviolet ( uv ) radiation
但大家可知道這熾熱的火球同時也在源源不絕地釋放著不同波長的輻射,其中包括我們看不見、也觸摸不到的紫外線。After 40 hour irradiation time, about 7 ci of radioactive isotope 64cu was produced via 63cu ( n, y ) 64cu reaction. after simple disposal, the irradiated copper sample was installed in the high - intesity ion sputter source on the hi - 13 tandem accelerator. then 64cu ions extracted from the high - intesity ion sputter source and injected into the tandem accelerator, 64cu ions can be accelerated to an energy of 80 mev and formed the off - line rnb since natural
S )的熱中於通量下,經過34個半衰期輻照,通過『 u … , y )生成放射性l司位素『 cll ,然後將放射性銅靶錐注入串列加速器強流濺射離于源中,引出mcll負離于,經刁串列加速器加速而得到能量為80mcv的離線放射性核束「 cll叭。Through the theory of light radiation and intensity, we can use the fewest leds to satisfy the luminous intensity demand. through image segmentation theory, we can accurately pick module up from the test stripe when it is put in wrong directions. through image processing theory, we can acquire correct information and avoid the bad effects from the asymmetric chemistry reaction and instability of the devices
用光的輻射和強度理論,我們計算出了獲得足夠圖像強度所需的最少光源;用圖像分割理論,我們在試紙條傾斜放置或有垂直方向上的偏移時,準確地提取出了各模塊的數據;用平滑濾波和均值濾波理論,我們濾除了由於反應不均勻及硬體設備不穩定帶來的噪聲;用交遇區設計線性分類器的方法,我們降低了有限樣本設計線性分類器帶來的誤差,提高了檢驗準確度。X - ray has been widely used in industry and medicine since it was found in 1895, such as nondestructive detection of cavities in objects using x - ray " s property of penetration, trace element analysis using x - ray fluorescence, radiation therapy using x - ray " s ability to damage protein, and so on
X射線源在生產和醫療上一直以來具有廣泛的應用。利用x射線的穿透性可進行無損探傷;利用x射線的熒光效應可對物質進行痕量分析;利用x射線使蛋白質變性可對腫瘤進行放療。In the closeup view on the lower left, also color coded by x - ray energies, the point sources have been taken out to emphasize the hot gas clouds in the central regions of the antennae
在左下的放大圖中(仍按x射線波段的著色法表示) ,點源已被扣除,這樣就可以突出觸角星系中心區域的熱氣體雲。At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency
在平面工藝初期,由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配, sio _ 2對其又有良好的掩蔽作用,早被選為npn硅平面器件的理想基區擴散源,但b在硅中的固溶度大( 1000時達到5 10 ~ ( 20 ) ,擴散系數小, b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈,導致器件不能滿足高反壓的要求,隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝,前者會引起較大的基區偏差,雜質在硅內存在突變區域,導致放大系數分散嚴重,下降時間t _ f值較高,熱穩定性差;後者需要難度較大的真空封管技術,工藝重復性差,報廢率高,在擴散質量、生產效率諸方面均不能令人滿意。Based on the discussion on the principle of density - logging, this paper analyses far - gamma gamma rate, near - gamma gamma rate and density - logging curve respectively, and discusses far - gamma gamma rate near - gamma gamma rate and density variation caused by radioactive anomalies, and preliminarily interprets factors that could lead to the variation of density - logging curve of radioactive anomalous layer, thus explaining the reason why density - logging curve changes at the radioactive ore - layer in northern ordos basin, finally, an empirical formula for revising the distortion of density - logging curve has been established
摘要本文概述了密度測井原理,分別對長源距計數率、短源距計數率及密度曲線進行分析,對由於放射性異常引起的長源距計數率、短源距計數率及密度變化情況進行了討論,初步解釋了放射性異常層位密度曲線的變化因素,說明了鄂爾多斯盆地北部地區密度測井曲線在放射性礦段的變化原因。This star emits x - ray pulses with a period of 7. 47 s. from time to time, outbursts of low energy gamma - rays are also observed. hence, observational astronomers sometimes call this type of stars " soft gamma ray repeaters "
這顆星以7 . 47秒的周期發放著x射線脈沖,並不時發射低能量伽瑪射線,因此,觀測天文學家有時稱這類星為繼發軟伽瑪射線源。The skin and nodal lesions disappeared after multiple combination chemotherapy, allogenic bone marrow transplantation and electron beam radiation therapy
在接受多次化學治療,放射線治療,同源性骨髓移植,及電子射線照射后,其皮膚及淋巴結之病灶皆消失。Radiation protection instrumentation - installed personnel surface contamination monitoring assemblies
和射線放射源個人用表面污染監測機組Medical teletherapy systems with gamma - emitting sources - part 2 : radiation safety requirements for installation
帶射線源的放射治療系統.第2部分:輻射安全要求Among them the x - ray diffraction analysis is mainly used to confirm clay mineral assemblages and their crystallinity ; chemical analysis and electronic microscope are used to study the source, the genesis and the evolvement process of clay minerals ; radioactive isotopes analysis can make up the relationship between the time and space which is based on the climate index and the chronology ; hydrogen and oxygen isotopes also provide important evidence for reconstructing paleoclimate
其中, x射線衍射分析主要用來確定黏土礦物組合及其含量以及某些黏土礦物的結晶度化學分析電鏡分析主要用於黏土礦物的來源成因演變過程的研究放射性同位素的研究使氣候指標和年代學建立起時間和空間上的聯系而氫氧同位素分析亦能對古氣候重建提供重要佐證。Measurement and assessment of personal exposures to incoherent optical radiation - visible and infrared radiation emitted by artificial sources in the workplace
暴露在非干涉光輻射中的人體測量和評定.工作場所中人工源放射的紫外線輻射Measurement and assessment of personal exposures to incoherent optical radiation - ultraviolet radiation emitted by artifical sources in the workplace
對處于斷續光輻射中的人體測量和評定.工作場所中人工源放射的紫外線輻射The whole - body gamma knife system is a kind of non - invasive medical instrument by using co - 60 as the gamma ray source. according to geometrically focusing theory, the gamma knife system can precisely focus in spirals 30 beams of gamma rays from different directions to a target through a collimator. by the collimator s direction, the predetermined lesion will be under radiation in heavy dose and subsequently be destroyed completely
體部伽瑪刀是利用能產生伽瑪射線的鈷60作為放射源,根據幾何聚焦原理,將30束伽瑪射線從不同方向和位置通過準直后經一個固定的軸旋轉聚焦到焦點,形成品質優良的劑量區,將腫瘤組織置於該高劑量區中,即可在預定時間內將病變組織摧毀,體表和焦點以外的正常組織僅受到瞬時照射而基本上不受損傷。Some key factors in design of kev radioactive ion beam facility are discussed. they are extension of primary ion beam line, target / ion source, selection of target materials, optical calculation of the radioactive ion beam system, measurement of weak radioactive ion beam and overall efficiency of the system
本文介紹了kev放射性核束裝置中幾個關鍵部分的設計和初步實驗結果,包括系統總體概況,初級束流線,靶源系統,靶材料選擇,系統光路,低能放射性弱束流的測量,放射性劑量及輻射防護,系統總體效率評估等。The video simulator is of significant flexibility and commonality. so long as the simulation software is changed, simulation of different radar signals can be implemented. the video simulator can dominate radio frequency ( rf ) equipment to export rf pulse to implement the function of radar signal environment integrated simulation system
模擬器控制射頻設備輸出的射頻脈沖,既可作為注入信號直接輸入雷達偵察接收機,也可以放大到足夠的功率后通過天線輻射,作為微波暗室的輻射源,實現雷達信號環境一體化模擬系統的功能。分享友人