輻射原則 的英文怎麼說

中文拼音 [shèyuán]
輻射原則 英文
divergence principle
  • : 名詞(車輪中車轂和輪圈的連接物) spoke
  • : 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) ...
  • : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
  • : Ⅰ名詞1 (規范) standard; norm; criterion 2 (規則) regulation; rule; law 3 (姓氏) a surname Ⅱ...
  • 輻射 : radiation; exposure; radio; beaming
  1. Any practice resulting in increased exposure to radiation should be carefully planned in accordance with the three basic radiological protective principles as set out by the international commission on radiological protection icrp in 1991 icrp publication no. 60. these basic principles are

    對于因進行任何活動,而增加了個人或群體的,國際放防護委員會icrp在其一九九零年的建議書第60號刊物內,列出三項基本防護
  2. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的和方法,編寫了設計程序和界面。
  3. To ensure that no individual is exposed to radiation risks that are judged to be unacceptable. in the unlikely event of a nuclear accident resulting in an increase of environmental radiation level, both icrp publication no. 60 and no. 63 recommended implementation of interventions i. e. human activities to reduce the overall exposure by altering the existing causes of exposure. the basic principles for intervention are

    對于因核意外而令自然環境水平增加,國際放防護委員會在其一九九零年的建議書第60號刊物及一九九一年的建議書第63號刊物內,均建議需進行干預即通過某些活動影響已存在的照因,從而降低總照量,保障受到影響的人的健康,其防護為:
  4. Radiation protection - performance criteria for radiobioassay - part 1 : general principles

    防護.放生物測定的性能標準.第1部分:一般
  5. On the other hand, the activity and function of p27 kip1 was affected by many physiological agents such as camp, il - 2, rampamycin. the expression of p27kip1 increased after - irradiationin in the fibroblastoma cells, leading to arrest in gl phase, but its expression markedly decreased after y - irradiation in the nbcc cells, and leaded to arrest in g2 / m phase. several studies have reported that p27 kip1 involved in a much wider range of cellar processes, such as differentiation, apoptosis and migration, the expression level of p27kip1 is key for its function in dna damage responses

    另一方面, p27kip 』的活性水平及功能作用,因細胞類型不同而各異,又受多種因素的影響,如一些有絲分裂camp 、雷帕黴素可以上調p27kip ,的表達,而il一2等與p27ki 」 『的表達下降有關,受電離( ir )照的成纖維細胞瘤及用1 , 25一二經基d3處理的hela細胞系在gl期均有游離的p27腳『的積累,細胞周期阻滯在gl期;而在痣癌伽bccs )細胞中, y一線能誘導p27吻『表達水平的顯著下調,細胞周期阻滯在g2艦期。
  6. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發,建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程,詳細討論了fdtd法計算中時間步長和空間步長的選取以及激勵源的類型和設置;推導了mur一階和二階邊界條件在圓柱坐標下的差分格式;給出了在用fdtd法計算天線的遠場特性時必需採用的頻域和時域近場遠場變換技術;最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區場,並分析了天線的一些參數的變化對天線輸入阻抗的影響,得出了一些有用的結論。
  7. Non - ionising radiation such as radio waves, radar and visible light does not have sufficient energy to remove electrons from atoms while passing through matter ; ionising radiation does. are there different types of ionising radiation ? yes

    非致電離如無線電波雷達及可見的光線在穿過物質時,並無足夠的能量使電子脫離子,但致電離可以。
  8. What are the objectives and basic principles of radiation protection

    防護的目的及基本是什麼?
  9. Principles for radiation protection

    防護的
  10. The fact that there is no level of radiation which can be proven to cause no harm means that the international commission for radiological protection icrp recommends that no practice involving radiation be undertaken unless it is likely to bring a net benefit and that for any such practice, exposure should be kept as low as reasonably achievable alara principle, economic and social considerations being taken into account

    由於任何量都不能確保絕對安全,國際放防護委員會在考慮經濟及社會因素后,建議盡量避免涉及的治療或行為,除非所得的益處較引致的壞影響大,並且在進行的過程中,應把照量維持在可合理使用最低劑量alara
  11. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and applications to counting measurements on filters during accumulation of radioactive material

    電離測量探測限和判斷閾的確定.基本及對放材料累積過程中過濾器計數測量的應用
  12. On the basis of this analysis the radiation and diffraction forces of the ship are calculated using these three methods and compared. at the same time vertical ship motions in regular wave are solved by these three methods. the results are compared to test each method ' s availability and suitability, thus the theoretical basis of optimize design of sea - keeping performance is provided

    分別介紹了二維切片法、高速細長體理論和三維理論的基本理,分析了三種不同方法各自的適用性,在此基礎上分別計算了船舶的力和繞力,比較了這三種方法的計算結果,為不同營運目的的船舶耐波性計算提供陜速有效而實用的計算方法;同時應用三種方法計算了船舶在規波中的垂向穩態運動響應,比較三種方法的計算結果,測試各種方法的有效性和適用性,為船舶耐波性的優化設計提供始的理論基礎; 2
  13. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and general applications

    電離測量探測限和判斷閾的確定.基本和一般應用
  14. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and applications to measurements by use of transient mode

    電離測量探測限和判斷閾的確定.基本和對瞬態測量方法的應用
  15. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and application to counting measurements with the influence of sample treatment

    電離測量用探測限值和判斷閾的確定.基本和對經過樣品處理的計數測量的應用
  16. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and application to counting measurements without the influence of sample treatment

    電離測量用探測限值和判斷閾的確定.基本和對不經過樣品處理的計數測量的應用
  17. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and application to unfolding of spectrometric measurements without the influence of sample treatment

    電離測量探測限和判斷閾的確定.基本及對不受樣品處理影響的光譜測量法演變的應用
  18. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and application to counting measurements by high resolution gamma spectrometry, without the influence of sample treatment

    電離測量用探測限值和判斷閾的確定.基本和對不經過樣品處理的高解析度能譜法計數測量的應用
  19. How it works : instead of hilling a tumor with large beams of radiation from only a few directions, as is done with conventional radiotherapy, peacock calculates precise angles and dosed using a computer and ct scan

    工作理傳統的放治療是從幾個方向用大量的放性光束來攻擊腫瘤,而「孔雀』是用計算機和ct掃描儀計算出腫瘤的精確角度和吸收劑量。
  20. Reference neutron radiations - calibration fundamentals of radiation protection devices related to the basic quantities characterizing the radiation field

    標準中子.與表徵場基本量有關的保護儀表的校準
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