uranium uranium method 中文意思是什麼

uranium uranium method 解釋
鈾鈾法
  • uranium : n. 【化學】鈾 （U）。 fertile uranium 鈾238。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. O u standard test method for determination of uranium, oxygen to uranium, and oxygen to metal in sintered uranium dioxide and gadolinia - uranium dioxide pellets by atmospheric equilibration

    用大氣均衡法測定燒結的二氧化鈾和氧化釓-二氧化鈾顆粒中鈾氧鈾比
  2. Isotopic analysis of uranium by single - standard gas mass - spectrometer method

    單標準氣體質譜法鈾同位素分析
  3. In analyzing the neutron active detection, the neutron multiplication in the nuclear warheads induced by outer neutron source with different neutron energys is studied with numeral simulation, and the feasibility of through counting neutrons to determine the presence of high enrichment uranium ( heu ) in nuclear warhead has been proved. the method of detecting the warhead which contains heu pit by counting the released neut rons whose energy is higher than that of source neutron is studied. the feasibility of this method has been studied

    對幾種主動探測核彈頭方法進行的研究中，首先對不同能量各向同性外源中子照射核彈頭的中子增殖行為進行了數值模擬，檢驗了用外源中子照射核彈頭后，通過測量瞬發中子在核彈頭中的增殖量，來證明核彈頭中高濃鈾存在的可行性；研究了用能量低於1mev的外中子源照射核彈頭，用測量核彈頭中裂變產生的高於源中子能量中子數的方法探測核彈頭，通過數值模擬分析了可行性。
  4. Standard test method for isotopic uranium in water by radiochemistry

    用放射化學法測量水中同位素鈾的標準試驗方法
  5. Back extraction by hno3 - hf and back extraction by concentrated hnch after lower the concentration of organic phase are studied, the method of back extration by hnorhf can not be used to icp - ms, because some zirconium is hydrolysis when hf is removed by heat. however, the method of back extraction by concentrated nitric acid after lower the concentration of organic phase can be used to icp - ms, the recovery is 93. 2 %, rsd % is 5. 24 %, the decontamination factor of uranium is 3. 2xl04, the detection limit of zirconium is 0. 04ng / ml. the method of tta extracting trace zirconium in uranium is firstly used to icp - ms, the result is satisfied, it can be used to determine zirconium in uranic production quickly and veraciously

    本文通過研究hno _ 3 - hf反萃和稀釋有機相後用濃hno _ 3反萃這兩種分離方法，認為hno _ 3 - hf反萃由於在加熱去除hf時酸度不易控制，導致鋯的部分水解，因而此方法不宜用於icp - ms中，然而稀釋有機相後用濃hno _ 3反萃法用於icp - ms測量中，全程回收率為93 . 2 ，相對標準偏差為5 . 24 ，鈾的一次去污因子為3 . 2 10 ~ 4 ，鋯的測定下限為0 . 04ng / ml ，本文首次將tta萃取分離鈾中鋯用於icp - ms測量中，結果令人滿意，此方法適用於快速、準確測量鈾產品中微量鋯。
  6. Standard test method for the determination of uranium by ignition and the oxygen to uranium atomic ratio of nuclear grade uranium dioxide powders and pellets

    用點火和核級二氧化鈾粉末和顆粒的氧鈾原子比測定鈾的標準試驗方法
  7. Determination of density and open and closed porosity of uranium dioxide pellets ; boiling water and immersion method

    二氧化鈾小丸的開口孔隙率和隱孔隙率所佔比例及密度
  8. Nuclear fuel technology - determination of uranium in reprocessing - plant dissolver solution - liquid chromatography method

    核燃料技術.預處理廠溶解器溶液中鈾的測定.液相色譜法
  9. Based on features of natural electric potential in oxidation and reduction zones, it is held that the natural electric field method may determine the front line of the interlayer oxidation zone, and can hence infer the general position of the interlayer oxidation zone sandstone - type uranium deposit

    根據氧化帶與還原帶的自然電位變化特徵，利用自然電場法可以確定盆地層間氧化帶前鋒線，由此推測層間氧化帶砂巖型鈾礦大體空間位置。
  10. Test method for uranium and plutonium concentrations and isotopic abundances

    鈾和鈈的濃度和同位素豐度的測試方法
  11. Standard test method for uranium and plutonium concentrations and isotopic abundances by thermal ionization mass spectrometry

    用熱電離質譜法進行鈾和鈈濃度和同位素豐度的標準試驗方法
  12. Standard test method for isotopic abundance analysis of uranium hexafloride by multi - collector, inductively coupled plasma - mass spectrometry

    多收集器感應耦合等離子質譜法分析六氟化鈾同位素豐度的標準試驗方法
  13. It ' s a more accurate method in determining the isotopic abundance of uranium. the paper describes the measurement principles that allow accurate measurements to be taken on samples of arbitrary size, shape, and measurement geometry - and of arbitrary physical and chemical composition - through the use of know nuclear decay data ( half - lives and branching intensities ). this method relies on internal gamma - ray peaks from the spectrum under analysis to self - calibrate the unknown spectrum for energy and peak shape

    本工作首次分析了pc fram軟體的演算法並使用高純鍺探測器探測歐共體低濃鈾標準樣品，使用pc fram軟體的預設參數並不能得到準確的富集度值，通過大量的實驗，本工作對鈾富集度測量中的關鍵問題進行了初步的研究並給出了本實驗室條件下準確分析鈾富集度的修正參數和條件。
  14. Laser method of uranium enrichment

    鈾濃縮的激光法
  15. Standard test method for carbon in uranium oxide powders and pellets by direct combustion - infrared detection method

    用直接燃燒紅外探測法測定氧化鈾粉末和顆粒中總碳量的標準試驗方法
  16. For airborne survey, it is difficult to identify the information of the in - situ leachable sandstone type uranium deposits which are deep buried under ground by the traditional data processing and the traditional abnormal analysis method

    對航空測量來說，傳統的數據處理及異常分析方法難以識別蓋層較厚的可地浸砂巖型鈾礦的信息。
  17. Because the concentration of zirconium in uranium has large ranges, from 1. 50xlo ' 6 - 3. 8g / gu, not only how to decrease the remainder of uranium to eliminate its determinate effect but also how to acquire higher recovery of zirconium is considered, so the method of silica gel, the method of tbp levextrel resin chromatography, the method of tta chromatography and the method of tta extraction are compared. then tta extraction is chosen to acquire the ideal separation purpose. compared with icp - ms and icp - aes, xrf has characters of high repeatability, stability, low cost, high concentration elements analysis, the ability to determinate solid sample and having comprehensive practicability, but xrf has lower sensitivity, so how to increase the concentration of the sample to acquire better precision is a difficult problem, the optimum of operating condition : the integral time of spectral lines is 60s, the integral time of background lines is 20s, the voltage of xrf is 50kv, the electric current is 50ma

    由於鈾中鋯的含量范圍很廣，從1 . 50 10 ~ （ - 6 ） 3 . 8g / gu ，在分離和測量時，既要考慮盡量地減少鈾的殘留量以消除鈾對鋯測量產生的影響，又要獲得鋯的理想的回收率，因此本文在分離方法的選擇上比較了硅膠吸附分離法， cl - tbp萃取色層法， tta萃取色層法和tta萃取分離法的優缺點，認為tta萃取分離法可以達到理想的分離效果。
  18. Standard test method for gamma energy emission from fission products in uranium hexafluoride

    六氟化鈾裂變產物釋放的射線能量輻射的標準試驗方法
  19. Determination of the uranium content in nuclear grade uranium hexafluoride, uranyl fluoride solutions, uranyl nitrate solutions, uranium oxide, uranium dioxide, powder and pellets ; gravimetric method

    核純級的六氟化鈾氟化鈾酰溶液硝酸雙氧鈾溶液
  20. Standard test method for trace uranium in water by pulsed - laser phosphorimetry

    用脈沖激光磷光光度法測定水中微量鈾的標準試驗方法
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