等劑量分佈 的英文怎麼說

中文拼音 [děngjìliángfēnbù]
等劑量分佈 英文
isodose distribution
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 劑 : Ⅰ名詞1 （藥劑; 制劑） a pharmaceutical or other chemical preparation 2 （某些有化學作用的物品） a...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 劑量 : [物理學] [醫學] dosage; dose; dosis劑量槽 dosage bunker; 劑量測定（法） dosimetry; health work; ...
  1. In this thesis, ga is used to optimize the beam weights of intensity modulated radiation therapy ( imrt ) inverse planning, and 2d and 3d isodose contour as well as dose volume histogram ( dvh ) are used to evaluate the treatment plan

    本文應用遺傳演算法優化逆向調強放療計劃中射束的權重，用二維等劑量線、三維劑量分佈和劑量體積直方圖來評估計劃的優劣。
  2. By means of the elasto - plastic finite element method ( fem ), the effect of fillets on the stress distribution in aluminum alloy single lap joints was investigated under the condition of four types of adhesives with different elastic modulus ( i. e. acrylate, polyurethane, epoxy and phenolic - resin adhesives ) to form the fillets

    摘要利用彈塑性有限元法，研究四種不同彈性模量的膠粘劑（丙烯酸酯膠、聚氨基甲酸乙酯膠、環氧樹脂膠和酚醛樹脂膠粘劑等）形成的膠瘤對鋁合金單搭接接頭應力分佈的影響。
  3. The nanoparticle titanium dioxide was prepared with tnb as raw material by the sol - gel process, the effects of the alcohol salt concentration the kind of solvent the water volume hydro1yze temperature. the dried ways of the wet gel and the calcined temperature of the dry gel on the specific surface area. particle size

    本文以鈦酸丁酯為前驅體，利用溶膠?凝膠法制備了納米級的tio _ 2粉體材料，通過正交實驗研究了醇鹽的濃度、溶劑的種類、水含量、水解溫度、乾燥條件和煅燒溫度等工藝條件對納米粒子的比表面積、粒徑大小及分佈、晶相組成等性能的影響。
  4. During making microcapsule by interfacial polymerization process, the effects of the agitation speed, dispersant dosage on the size and distribution of microcapsule particle diameter were investigated

    摘要研究了界面聚合法制備微膠囊阻燃劑時，分散劑用量、攪拌速度等因素對微膠囊粒徑大小及分佈的影響規律。
  5. The agreement is also within the uncertainty when being compared with the alanine and cta film dosimeters made by jaeri. in addition, this dosimetry system is used to measure field and depth - dose distribution curves for 12mev electron beams, which shows it ' s suitability and practicability for electron beam irradiation

    另外，還利用該劑量體系對12mev電子束輻照場的分佈及深度劑量分佈進行了實際測量，得到了與cta和fwt60等薄膜劑量計相一致的結果，這也進一步說明該劑量體系在電子束輻照上的適用性和實用性。
  6. The different ratio and dosage of composite surfactants were researched about the polymer latex ' s stabilization and structure. afterwards, the emulsion polymerization of tris, mma, and p ( mma - co - ptris ) were carried out. some different monomer ratio copolymer latex and homopolymer latex are prepared by emulsion polymerization used self - made organosilicone monomer - [ tris ( trimethylsiloxy ) silyl ] propylmethacrylate and mma

    用ir ， tem ， dma ，水滴接觸角測試等方法表徵所制備的均聚物和共聚物膜發現：採用有機硅表面活性劑與十二烷基硫酸鈉復配使用，用量在6 8 （相對單體量）可得到粒徑分佈均勻且穩定的均聚和共聚乳液。
  7. Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction

    目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究
  8. In this paper. flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied. according to characteristic analysis, the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model. on the basis of analog computing analysis and discussion of theoretical model. by means of pulse tracer method, experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level, feeding flow rate and circulation flow rate. the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4, the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series. an amendatory model has been established by the regression method

    作者首先在對反應器進行特徵分析的基礎上，建立了描述中試規模多級外循環流化床生物反應器流動特性的串級全混流模型，並對理論模型進行了模擬計算分析和討論，在此基礎上，作者分別在無循環和有循環（改變示蹤劑用量、流加流量和循環流量）的條件下，利用脈沖示蹤法對一到五級串聯外循環流化床反應器進行了停留時間分佈實驗，結果表明，在循環流量與流加流量的比值達到大於等於4時，中試規模多級外循環流化床反應器的流動特性接近串級全混流模型，通過數據回歸擬合的方法，建立了中試規模一到五級串聯外循環流化床反應器的流動模型。
  9. Beginning with the analysis of the effects, which are brought by the application of only one kind of pore - former and some other operating factors ( such as sintering temperature, warmth retaining time and so on ), on the properties of the beads, e. g., porosity, strength, size distribution of the beads and pores size, etc., these effects are discussed in detail and the relationship between the factors is studied thoroughly. the use of mpf ( multi - pore - former ) is introduced for the first time, which is of the most importance and significance in this paper

    研究從造孔劑選用和燒結過程對顆粒的孔隙率、機械強度、孔徑分佈及粒度分佈的影響入手，找出了造孔劑的種類及含量、燒結溫度以及保溫時間等因素對最終所得產品顆粒的性能影響及它們之間的相互關系，並首次提出將造孔劑復配使用來對填充法加以改進，無需擴孔處理，即能直接制備宏孔徑、高強度、小粒度、比表面大的多孔玻璃載體顆粒。
  10. In this paper closed - cell foam samples with basically controllable pore structure and uniform distributed pore were prepared by means of melt foaming technique ( mft ). by relative theory analysis and adjusting the content of foam agent, foaming temperature, stirring time and hold time, means of getting samples with high quality has been found

    本文採用熔體發泡法，通過相關理論分析和控制發泡溫度、攪拌時間、保溫時間、調節發泡劑含量等制備出了孔結構基本可控、孔洞分佈均勻的閉孔泡沫鋁樣品。
  11. This facility is used to measure the refrigerant distribution in components of a refrigeration appliance, including compressor, evaporator, condenser, receiver, accumulator, liquid line, etc, under different working conditions, such as start - up, steady state or shut - down

    測量製冷裝置在開機、穩定運行、停機等不同工況下，包括壓縮機、蒸發器、冷凝器、集液器、氣液分離器、液管等在內的各個部件，製冷劑的質量分佈。
  12. The doctors can observe the relationship and geometry of the organs and the tumors, from the 3d model of the human body, which can help them create the therapy plan. the radiation dosimetry is built using monte carlo method. after we extract the iso - surfaces from the volume of the doses, the relationship between radiation doses and the cancer is represented on a 3d model, which is greatly helpful for the doctors to improve their therapy plan

    通過建立三維人體模型，可以幫助醫生直觀的觀察人體內部病灶及組織器官的形態位置尺寸，並獲得其量化指標，從而更加準確的制定治療計劃：根據初步的放療計劃，使用montecarlo方法建立模擬的放射劑量分佈數據場，再通過等值面提取方法獲得等劑量面，顯示並量化劑量分佈情況和病灶（靶區）的關系；根據模擬的結果對放療計劃進行適當修改，並最終獲得最佳的放射治療計劃。
  13. The dose distribution was analyzed by dose volume - histogram ( dvh )

    根據劑量體積直方圖等參數對兩者劑量分佈進行分析和評估。
  14. Treat dose directly affect the injury symptom type, occurrence time, injury degree, spots distribution, spots spread and color transformation

    處理劑量的高低對傷害癥狀類型、出現的早晚、傷害程度、傷斑分佈、傷斑擴展和色澤變化等均有直接影響。
  15. The main work done in this paper is as follows : ( 1 ) simulate the temperature field of basement wall by ansys software, sum up the characteristics of the temperature field of basement wall, and analyze the influence of the types of the molding board, environmental change and cement content ; ( 2 ) the whole simulation analysis process of early - age concrete stress field is realized by sub - development of ansys, and cts - ansys software is developed with fortran ; ( 3 ) based on the cause of cracking, the influence of the thickness of the wall, length, bar arrangement, mix proportion, expanding agent, etc, on the wall stress due to concrete creep and temperature change is analyzed

    本文主要進行了以下幾個方面的研究： （ 1 ）利用ansys軟體，模擬了施工期地下室側墻溫度場，總結了地下室側墻溫度場分佈的特點，分析了模板類型、環境變化和水泥用量等對墻體溫度場的影響； （ 2 ）以大型通用有限元軟體ansys為平臺進行二次開發，運用visualfortran語言編寫了cts - ansys程序，實現了施工期混凝土徐變溫度應力的模擬計算； （ 3 ）從裂縫形成的原因出發，分析了地下室側墻厚度、長度、配筋率、配合比、膨脹劑等因素對墻體徐變溫度應力的影響。
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