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dipolar adj.雙極的(磁石)。

dipole

If the position of the non - polarization slab shifts from the center to the surface , the number of the peaks of the susceptibility will change , and a step - like polarization curve is found . finally , two types of the dipolar defects are introduced into the lattice - based ferroelectric system 雜質層的空間位置的變化,如由中心對稱位置向表面方向移動,會導致多層膜的相變溫度升高,介電極化率由一個峰變為兩個峰,多層膜的極化隨溫度升高出現跳躍下降( step一likepolarization ) 。

Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization , and considered the cases that the pump beams have either narrowband or broadband linewidth . we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions . that is to say , this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state 文摘:研究了四能級系統中基于五階極化的拍頻效應,考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定于光學躍遷的均勻增寬.也就是說,這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時,可得到消除多普勒增寬的精度

The absorption characteristics was that the surface plasma absorption peak appeared around 570 nm shifted to a short wavelength and strengthened as the cu composition increased . but the maximal shift range of the absorption - edge preponderated over 500 nm , and leaded that the dipolar plasma resonance absorption peak were covered up and gradually disappeared in the absorption spectrum . we theoretically explained the mechanism of the modulating action 實驗觀察到cu表面等離子體共振吸收峰位在570lun附近的吸收邊頻移量超過了500nln .理論分析表明,吸收峰位的移動主要源于偶極共振,而峰形的寬化主要由納米粒子的表面效應和量子尺寸效應引起

The first type of the dipolar defects will cause two successive 90 ? rotations of the direction of the dipoles during the process of switching , while the switching behavior of the ferroelectric system with the second type of the dipolar defects shows almost a single 1800 flipping 在外場轉向的情況下,偏離平衡位置的偶極缺陷會引起缺陷周圍的偶極子的兩次90度反轉,而極化取向固定的這類偶極缺陷不會導致偶極子的90度反轉。

The characterization of “ click chemistry “ ( the 1 , 3 - dipolar cycloaddition combined with the synthetic design of triazoles and tetrazoles ) is reviewed , and some recent examples of various bioconjugates synthesis are introduced based on the “ click chemistry “ 摘要介紹了利用1 , 3 -偶極環加成反應合成氮雜三唑和氮雜四唑的設計方法和反應特點,以及氮雜唑類化合物的合成在生物綴合物研究中的應用。

Baoxiang gao , quanguo zhou , yanhou geng , yanxiang cheng , dongge ma , zhiyuan xie , lixiang wang , fosong wang “ new fluorescent dipolar pyrazine derivatives for non - doped red organic light - emitting diodes ” materials chemistry and physics 99 ( 2006 ) 247 ? 252 高保祥,王明,程延祥,王利祥,景遐斌,王佛松“高熒光量子效率三亞吡嗪衍生物的合成與性能” ,應用化學2007 ,第24卷4期365 - 369 。

Radiation spectrums of relativistic charged particles in a dipolar magnetic field were studied numerically in detail by using the current density of moving charged particles in this paper 摘要從運動的荷電粒子產生的流密度出發,研究了在地球偶極磁場中運動的相對論性荷電粒子的輻射能量譜,并對其進行數值計算。

Abstract : a wide variety of natural products , e . g . alkaloids , - lactames , biotin , amino sugars has been synthesized by 1 , 3 - dipolar cycloaddition reaction between nitrones and alkenes 文摘:通過硝酮與烯烴化合物的1 , 3 -偶極環加成反應合成了許多天然產物,如生物堿、 -內酰胺、生物素、氨基糖等。

A wide variety of natural products , e . g . alkaloids , - lactames , biotin , amino sugars has been synthesized by 1 , 3 - dipolar cycloaddition reaction between nitrones and alkenes 摘要通過硝酮與烯烴化合物的1 , 3 -偶極環加成反應合成了許多天然?物,如生物鹼、 -內酰胺、生物素、氨基糖等。

A wide variety of natural products , e . g . alkaloids , - lactames , biotin , amino sugars has been synthesized by 1 , 3 - dipolar cycloaddition reaction between nitrones and alkenes 通過硝酮與烯烴化合物的1 , 3 -偶極環加成反應合成了許多天然?物,如生物鹼、 -內酰胺、生物素、氨基糖等。

Applying the monte - carlo simulation on the system , we obtain the introducing of the dipolar defects will decrease the coercive field Nte一carlo方法,研究了偶極缺陷對鐵電系統的switching行為的影響。

Residual dipolar couplings and their applications in determination of protein structures 殘留偶極耦合及其在蛋白質結構研究中的應用

Theoretical study on the 1 , 3 - dipolar cycloaddition reaction of c , n - dimethyl nitrone and acrylonitrile 偶極環加成反應的理論研究

Study of 1 , 3 - dipolar cycloaddition in the synthesis of tazobactam 酸偶氮類試劑的合成及應用研究