查询词典 atomic structure

In this thesis, researches have been made on the structure of membrane protein and the process of protein aggregation and disaggregation by employing the two advantages of atomic force microscopy : nanometer resolution in liquids and in situ observation following a biological dynamical process during a long period. This thesis consists of four parts.

本论文利用原子力显微镜能够在溶液中观察生物大分子的结构并可以达到纳米级分辨率和能够在近生理的环境中对生物样品的活性过程进行跟踪观察的两大优势分别对膜蛋白的结构和蛋白质积聚、解聚的过程进行了研究。

They used a process called atomic layer deposition, which not only coated spider dragline silks with metal but also caused some metal ions to penetrate the fibers and react with their protein structure.

他们用到了一种称之为原子级别表面沉积方法。这个方法不但将蜘蛛牵引丝上覆盖了金属，而且会使得一些金属离子渗入纤维和其蛋白质解构起反应。

It has been used to image the living cells and localize the cell surface ultra structure under near physiological conditions by perfect atomic resolution,was also utilized in the biological process,interactions between druggery and cells,was an important instrument for the study of cell biology.

原子力显微镜，能够在接近生理条件下以具有原子级的分辨率对活细胞进行表面成像和超微结构观察，同时可以研究细胞的生物过程、细胞与药物之间和细胞之间的相互作用，成为细胞生物学研究的一种有效工具。

Furthermore, the specificity of certain reactions of electronic structure might be exploited to reconstruct the motion of the atomic electron cloud.

此外，某种电子结构反应之特定性，可以被利用来重建原子电子云之动作。

The Pd-Cu/C catalysts were shown to have the face centered cubic crystal structure. This could indicate that the addition of Cu shortened the Pd-Pd distances in the crystal lattice, and therefore –HO(subscript 2ads) and O-O could be better adsorbed on the surface of the catalyst. When NaBH4 was used as the reducing agent, and the atomic ratio of Pd to Cu was 3:1, the resulting catalysts had an average particle size of 3. 4nm and showed the best catalytic performance. The electrochemical active surface are a of Pd3Cu/C was 38.9m^2/gPd and the oxidation reduction reaction activity of the Pd3Cu/C catalyst was much higher than that of the Pd/C catalyst. The electrochemical activity of the Pd3Cu/C catalyst was comparable to that of a commercial Pt/C catalyst.

结果表明：催化剂中Pd与Cu的物质的量之比与预设值相近，Pd和Cu基本被全部还原；Pd-Cu/C催化剂为面心立方结构，元素铜的加入使催化剂的Pd-Pd间距缩小，从而HO(下标 2 ads)和OO键能更好地吸附在催化剂金属表面；当采用NaBH4为还原剂，Pd与Cu物质的量比为3：1时，催化剂(Pd3Cu/C)的平均粒径为3.4 nm，催化剂的催化性能最好，电化学活性表面积EAS达到38.9平方公尺/gPd，电化学性能较Pd/C催化剂有很大提高，接近Pt/C商用催化剂。

The structure and thermodynamics of liquid Au and AuCu alloys have been simulated using molecular dynamics method based upon the EAM interatomic potential to reveal the influence of the mismatch in atomic size on the glass forming ability.

近年来，非晶合金由于有较好的延展性和抗腐蚀性，得到了广泛的应用犤1犦。Duwez犤2犦首次制成金属非晶，Inoue犤3-4犦将非晶的获得归纳为三条基本规律，这为选择合金元素提供了有益的指导。

Topologic and phase imaging by atomic force microscopy indicates that specific structure appeared at this temperature interzone Optical properities of specimen annealed at low temperature revealed that the resultant ZnO have obvious quantum confinement effects on ZnSe.

随着处理温度从450℃升至550℃时薄膜逐渐从ZnSe相向ZnSeO变化并继而向ZnO转变，原子力显微镜的表面形貌和相图显示此温度下出现了特殊的纳米结构。

Inductively Couple Plasma Atomic Emission Spectrometry , X-ray diffraction , scanning electron microscope , microhardness testing and emergency cooling testing have been used to detect amorphous Fe-Ni-Cr deposits'properties, such as content, crystalline structure, microphotograph, hardness, adherence between deposit and substrate.

用等离子发射光谱、X-ray衍射、扫描电子显微镜、显微硬度法、骤冷法等方法对非晶态Fe-Ni-Cr合金镀层的结构、形貌、硬度以及镀层与基体的结合性能等进行了检测分析。

Our technological equipment is rich, including global satellite positioning system GPS, geological radar meter (SIR-20, EKKO), seismograph, infrared detector (NEC-TH9100), ultrasonoscope, building structure diagnose apparatus, proton magnetometer, atomic absorption apparatus, ion chromatograph, gas chromatography, niton survey meter, and etc.

中心拥有各类先进的检测和探查仪器，如：GPS卫星定位仪、全站仪、数字水准仪、美国SIR-20地质雷达仪、加拿大EKKO地质雷达仪、地震仪、NEC红外热像仪、超声波检测仪、质子磁力仪等物探测量仪器，以及原子吸收仪、离子色谱仪、气相色谱仪、氡气探测仪等化学、放射性检测仪器。同时，不断加大对科研经费的投入，引进和开发地质雷达探测、瞬态面波探测、高密度电法等物理探测、远红外成像检测、GPS动静态定位技术、水土环境监测、研发高难度废水处理工艺、地质灾害防治措施及科技考古技术等新方法。

The structure and morphology of oriented PTFE bulk, worn surface, debris and transfer film were analyzed with the aid of scanning electron microscopy, atomic force microscopy, energy dispersion spectroscopy, X-ray diffraction, Raman spectroscopy.

通过改变PTFE的分子量、拉伸温度等条件考察了结构对PTFE本体取向的影响；用栓。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。