共變旋子 的英文怎麼說
中文拼音 [gòngbiànxuánzi]
共變旋子
英文
covariant spinor-
Covariant spinor of first rank
階共變旋子Fouier transform ion cyclotron resonance mass spertrometer ft - icr - ms
傅立葉變換離子迴旋共振質譜計The results indicate that the effects of the dirac sea states are pronounced in the collective multipole excitations for nuclei, especially on the isoscalar giant modes, but become weaker for light nuclei, while the contributions on the isovector modes are negligible
在核的同位旋標量激發模式中， dirac海負能核子態在不同的共振模式中的貢獻程度不一。對于同一種激發模式， dirac海負能核子態的貢獻隨著核子數的減少而變弱。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Mri scanning, developed in this very building ; the contraceptive pill ; modern infertility treatment ; ultrasound scan for unborn babies ; unlocking the double helix structure of dna ; keyhole surgery ; placing fluoride in the water supply ; the portable defibrillator ; the hepatitis b vaccine ; strained quantum - well lasers which contain the information used in cds, dvds and the internet ; dna fingerprinting. a whole speech could be given that amounted to nothing more than a list of examples
正是在牛津這個地方研究和開發出來的核磁共振掃描、避孕藥、現代不孕癥治療術、胎兒超聲波檢查、解開dna雙螺旋結構之謎、鎖孔外科手術、在供水系統中加氟、便攜式心臟除顫器、乙肝疫苗、在cd 、 dvd光盤上存儲信息的應變量子阱激光器、 dna指紋識別技術等。This article mainly discusses the phase transition properties of random transverse field mixed spin ferromagnetic system with crystal field. the phase diagrams display the curie temperature dependences of the crystal field, the transverse field and the trimodal random concentration for the honeycomb lattice and the square lattice
在本文中我們採用隨機橫場與晶場共同作用下的混合伊辛自旋模型，計算並討論了二維的蜂窩格子和平方格子系統的居里溫度隨晶場、橫場和隨機濃度的變化關系。Taking the meshing theory of conjugate curved surface as a foundation, utilizing array method of rotation transformation of vector, the meshing equation and contour surface equation of conical cam mechanism with swinging conical roller follower were analyzed and derived, and the calculation formula of pressure angle and synthetic curvature of the mechanism was presented, thus laid a solid theoretical foundation for enhancing the machining accuracy of conical cam, improving its processing method and achieved the integration of cam cad / cam
摘要以共軛曲面嚙合理論為基礎，運用矢量的旋轉變換矩陣法，分析並推導了圓錐滾子擺動從動件圓錐凸輪機構的嚙合方程和廓面方程，並給出了機構的壓力角和綜合曲率的計算公式，為圓錐凸輪加工精度的提高，改進其加工方法，實現凸輪cad / cam一體化奠定了堅實的理論基礎。Firstly, the paper studied the dual effects of v2o5 in zno - v2o5 varistor ceramics during low temperature sintering. the binary varistor ceramic samples of v2o5 filled with zno at 2. 5 10 - 3mol were prepared, the valence of v ion was studied by esr ( electron spin resonance )
本文首先研究了v2o5在zno ? v2o5壓敏陶瓷低溫燒結中的雙重作用，制備了v2o5含量為2 . 5 10 - 3mol的單組元zno壓敏陶瓷，採用電子自旋共振譜（ esr ）研究了v2o5中v離子的價態變化。The second chapter will consider three two - level atoms initially in the ghz state, then an atom of them will be put into an initially empty cavity and make resonant interaction. after manipulating the atoms outside the cavity, we will consider the change of the squeezed feature of the cavity. moreover, this result will be generated to n two - level atoms
在第二章中，我們提出了這樣一個模型，就是將處于ghz態的若干兩能級原子中的一個注入到與之共振的真空腔場中，然後對腔外的原子分別進行旋轉和測量操作，來研究操作前後腔場單模壓縮性質的變化。In theory we fit and analysis the data that observed from the experiment to research the properties ( mass, decay width, spin and so on ) of particles and find new particles or resonances
在理論上擬合所測到的數據，對數據進行分析以研究粒子的性質（質量、衰變寬度和自旋等物理量）和尋找未知的新粒子或共振態。分享友人