1)chirality['t?ir?liti]手征性
1.Chirality is solely a concept with respect to geometry,it is a pseudo-scalar without any connection to the physical world.手征性只是一个与几何特征有关的概念,是一种赝标量。
2.In this paper,the anti-duality of octonions physical equations was studied,and by using the anti-duality the chirality problems of the nature was explained.研究了八元数物理方程的反对耦性质 ,并利用这一性质对自然界的手征性问题进行了解
3.The structures and chirality of the samples are characterized by means of Fourier transform infrared(FT-IR)spectra,X-ray diffraction(XRD),circular dichroism spectroscopy(CD),ultraviolet visible spectrophotometer(UV-vis).结果表明,通过过硫酸铵作引发剂、盐酸掺杂获得了导电的盐酸掺杂态聚苯胺(PANI-HCl);通过氨水脱掺杂后得到本征态聚苯胺(EB),EB通过手性樟脑磺酸(CSA)诱导,形成了手征性螺旋构型聚苯胺。
英文短句/例句
1.The Research of Helical Polymer with P-Chiral Center;含有手征性磷原子的螺旋聚合物研究
2.a ceremonial or emblematic staff.礼仪性或者象征性手杖。
3.ABELIAN AND NON -ABELIAN CHIRAL ABNOMALIES阿贝尔手征流反常与非阿贝尔手征流反常的性质
4.Synthesis and Characterization of Chiral Quinine - porphyrin Compounds;手性奎宁-卟啉配体的合成与表征(Ⅱ)
5.Different Characteristics of Training Method and Training Means;试论训练方法与训练手段的异性特征
6.Synthesis and Characterization of Novel Chiral Carbazole Derivatives新型手性咔唑类衍生物的合成与表征
7.Studies on the Synthesis, Characterization and Activity of Chiral Herbicide Safeners;手性除草剂安全剂的合成、表征与活性研究
8.Craniofacial Morphological Analysis in Borderline Surgery Patients with Skeletal Class Ⅲ Malocclusion骨性Ⅲ类错手术与非手术治疗边缘病例的颅面特征分析
9.CONFINEMENT PROPERTIES OF THE PURE GAUGE FIELDS ON COSET SPACE OF AN ABELIAN CHIRAL GROUP阿贝尔手征群陪集纯规范场的禁闭性质
10.General Technical Characters of 800m Female Elite Runners in Liaoning Province Team辽宁省女子800米优秀选手的共性技术特征
11.SURGICAL TREATMENT OF CONGENITAL SPINAL BIFIDA AND TETHERED CORD SYNDROME先天性脊柱裂与脊髓栓系综合征的手术治疗
12.A Feature Extracting Method for Handwritten Chinese Character Recognition Based on Elastic Mesh and Fuzzy Feature of Block基于弹性网格模糊特征的手写体汉字识别方法
13.The Propagation Property of Electromagnetic Waves in Photonic Crystals and Chiral Media;电磁波在光子晶体和手征媒质中的传输特性
14.Synthesis and Characterization of Low Molecular Weight Thermotropic Liquid Crystals Containing Chiral Group;含有手性基团的小分子热致液晶的合成与表征
15.SYNTHESIS AND CHARACTERIZATION OF NEW ASYMMERTRICAL METHANE MOMOOXYGENASE-LIKE MODEL COMPLEXES CHEN MO;甲烷单加氧酶手性配合物的合成及表征
16.Clinical Characteristics and Surgical Treatment of Acquired Paralytic Strabismus;后天麻痹性斜视的临床特征及手术治疗
17.Study on the Correlation between SCT Features and Surgical Pathology of Gastric Cancer;胃癌螺旋CT征象与手术病理的相关性研究
18.Clinical Characteristics and Surgical Treatment of Congenital Double Depressor Palsy;先天性双下转肌麻痹的临床特征及手术治疗
相关短句/例句
chiral fields手征性场
3)Chirity手性征
4)amphichirality非手征性
1.They are used to calculate a 3-order Vassiliev invariant on some knots and determine an equivalence condition for amphichirality of these knots.给出了对具体计算有用的某些公式并用它们计算了某些纽结的Vassiliev不变量,还用这些结果探测了这些纽结的非手征性。
5)P-chiral center手征性磷
1.We obtained novel chiral N-propargylphosphonamidate monomers with P-chiral center by condensation twice (HC≡CCH_2NH(P=O)R_1R_2.通过UV-vis以及CD光谱研究表明：手征性磷原子基团的存在对丙炔胺衍生物类聚合物形成螺旋构象具有决定性的作用。
6)chiral symmetry手征对称性
1.The real part of Fermion determinant and Fermion propagator are generalized with m substituted by momentum dependent Fermion self energy inverse for Dirac operator with dynamical chiral symmetry breaking caused by momentum dependent Fermion self energy ∑(k~2).考虑到动力学手征对称性破缺效应,将含有硬费米子质量项的费米子行列式与真空凝聚推广为含有动量相关的费米子自能项的情况;并且推广了Schwinger proper-time方法,使之能够计算含有动量相关的费米子自能的费米子传播子;探讨了4维可重整化的量子场论中费米子在路径积分中的贡献。
2.The concept of chirality in atomic nuclei was first proposed in 1997, and since then many efforts have been made to understand chiral symmetry and its spontaneous breaking in atomic nuclei.手征对称性在自然界中广泛存在,如人类的手,某些化学和药物分子以及海螺壳等都有手征性。
延伸阅读
手征性手征性chirality化合物分子或分子中某一基团的构型可以排列成互为镜像而不能重叠的两种形式，如人的左右两手一样。又称手性、非对称性。手征性是分子产生旋光性（见旋光异构）的必要条件。图1 氯溴代乙腈原因包括：①晶体结构不同。例如，石英晶体能生成互为镜像的两种半面体形式。某些无机盐如氯酸钾等也是这样。当它们的晶体一旦发生变形或破坏时。例如经过溶解后，则旋光性随之消失。②有机物分子内的原子或基团在空间排列的不同。例如，氯溴代乙腈分子具有互为镜像的两种形式（图1）。图2 中心型、轴型和面型手征性手征性有以下几类：①中心型手征性。由于分子中有手征性碳或其他原子的不对称因素（见不对称原子），使分子具有手征中心（图2c）。②轴型手征性。通过分子中的一个轴来区别左右手征性，该轴即为手性轴。例如丙二烯型或联苯型旋光化合物分子（图2a、b）。③面型手征性。分子就一个平面来区别手征性，该面即为手性面，例如旋光性提篮型化合物（图2d）或反环辛烯等。图3 内消旋酒石酸的构象手征性概念也适用于构象（见分子构象）。一种分子当其全部可能构象都是手性的时，才是手性分子。例如内消旋酒石酸，它具有3种较稳定的构象，其中两种是手性的，且互为镜像异构体（图3a、b），一种是非手性的（图3c），因而内消旋酒石酸是非手性的。
