查询词典 ni

A novel complex of Ni (3-PyOH)4Cl2 (3-PyOH=-pyridone) was synthesized by the reaction of NiCl26H2O and 3-hydroxypyridine in an alcohol solution, and characterized by elemental analysis, IR spectrum and single crystal X-ray diffraction.

利用氯化镍和3-羟基吡啶在乙醇溶液中反应得到了配合物Ni(3-PyOH)4Cl2（3-Pyon=3-羟基吡啶），并对其进行了元素分析、红外和单晶X射线的表征。

The distribution of carbon atom in Fe-Ni-C austenite can be described quantitively with Monte Carlo method.

定量描述了Fe-Ni-C合金中碳原子的分布状态。

With ultrasonic wave and lysozyme, the recombination N protein is split from bacteria. We dissolve it in guanidine hydrochloride, purify it with Ni〓 affinity chromatography column and renature it in vitro. By testing the antigen of the purified N protein, it shows that its activity is very high.

建立了用超声波和溶菌酶裂解菌体，用盐酸胍溶解，Ni〓亲合层析柱纯化及体外复性等方法，经检测证明纯化的VSV重组核蛋白抗原具有较高的活性。

At first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu-lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band-pass filter, alternating amplifier, phase sensitive demodulatorn, pulse-width modulation, frequency scale circuit, moment current generator. Finally, using the graphics program language LabV-IEW which is designed for testing field especially by NI accomplishes the solfware design of testing system,realized the testing functions.

首先对加速度计及其测试技术的发展历史和现状，液浮摆式加速度计的工作原理和数学模型等作了简要的介绍，然后确定了以二元调宽脉冲再平衡测试回路为设计方案，并从控制理论的角度进行了分析，着重研究了系统中各部分的传递函数，利用系统开环传递函数分析了系统的稳定性，同时设计了系统的校正网络；分析了二元调宽脉冲再平衡测试回路的分辨率、采样约束以及测试精度等基本问题，并按照系统分析的结果设计了包括前置放大、带通滤波、交流放大、相敏解调、脉宽调制、频标电路以及力矩电流发生器等测试系统各部分硬件电路，验证了电路的正确性，最后按照测试系统的要求，采用了美国NI公司专为测试领域所开发的虚拟仪器工具——LabVIEW作为测试软件开发工具，利用该图形化编程语言完成了测试系统软件部分的设计，实现了测试功能。

The Schiff base of O-ethylthonophosphoryl-dihydrazine with salicylaldehyde and its Ni, Cu, Zn complexes was synthesized.

合成了O-乙基硫代磷酰二肼的双水杨醛席夫碱(H2L)及以它为配体分别与Ni、Cu、Zn离子形成的配合物，所合成的席夫碱配体及配合物均为未见文献报道的新化合物。

In addition,the bitumen layer, such as Dingying and Mingxinsi formation should be given priority as potential source rocks. The organic type is Sapropel type. According to the trace element and the analysis in Sr/Ba, V/Ni, Sr/Ca, Ca/Mg, Th/U, it's proved that the sedimentary environment is marine.

通过对微量元素的分析，对Sr/Ba、V/Ni、Sr/Ca、Ca/Mg、Th/U进行了对比，证实了研究区当时的沉积环境主要为海相沉积环境，同时该区海水盐度逐渐降低，属海退系列沉积。

La-Mg-Ni system La0.83Mg0.17Ni Mn0.1 (x=3.4, 3.6) hydrogen storage, alloy electrode has been explored. Different time annealing treatment at 1173K has been applied to the alloy. XRD and Rietveld refinement method and Scanning Electron Microscopy analysis showed that the alloy annealed at 1173K for 8h singler type A2B7 and A5B19 phase composition can be obtained.

以La-Mg-Ni系La0.83Mg0.17NiMn0.1(x=3.4， 3.6)为研究对象，合金在1173K进行不同时间退火处理，通过XRD及Rietveld全谱拟合方法和扫描电镜背散射分析表明，在1173K退火8h分别可得到较单一的A2B7与A5B19型相结构合金。

The scFv formed inclusion body in E. Coli. 8 mol/L urea was used to solubilize the inclusion body, and the scFv was then purified in two steps , including Ni 2+ chelating affinity chromatography and gel filtration.

大肠杆菌表达的单链抗体包涵体，用8 mol/L尿素裂解，经过Ni离子螯合亲和层析和凝胶过滤两步纯化后，纯度达到97%以上，再通过透析复性除去尿素。

A complete bovine 18ku-bFGF gene was cloned by nested-PCR and subcloned into expression vector pET-28a.The recombinant plasmid pET-28a-bFGF was transformed into Escherichia coli BL21.At 25℃,recombinant protein was induced by 0.5mmol/L IPTG for 5 hours.Supernatant of cell lysate was purified using Ni-NTA method and the products was submitted to detect the bioactivity by Western-blotting,which indicated that the fusion protein contained recombinant bovine bFGF.Results showed that recombinant bovine bFGF was produced and solubly existed in the supernatant.NIH-3T3 fibroblasts were used to detect the bioactivity of the fusion protein.

采用巢式PCR方法克隆了牛18ku-bFGF基因完整的编码序列，并构建了原核表达载体pET-28a-bFGF，将其转化大肠杆菌BL21，在25℃低温条件下，用0.5mmol/L IPTG诱导表达5h，用Ni-NTA亲和纯化细胞裂解上清液，经Western-blotting检测，结果显示，在特定的诱导条件下，重组牛bFGF基因在大肠杆菌中获得了表达，并且主要以可溶性状态存在于细胞中。

The Paleoproterozoic Beidahe Group-complex remains as continental shivers in the interior of the North Qilian orogen. In its early stage of development, there occurred abundant amphibolite. The protolith of the amphibolite is basalts. The Alk-∑FeO-MgO plot, REE features and Rittmann index show that the protolith belongs to the calc-alkaline suite and exceptionally shows the subalkaline character. The rock is characterized by higher Al2O3 and ∑FeO and lower Mg#, indicating that it has a higher degree of compositional evolution and that the formation of volcanic rocks is related to activation of older crust. Highly fractionated REE patterns and amphibolite on the Ti-Zr-Y plot, Ni-FeO/MgO plot and Ta/Yb-Th/Yb plot all indicate the characteristics of volcanic arcs and active continental margins. On the geochemical diagram of basalt, the overall REE features are in the main analogous to those of calc-alkaline island-arc basalt, with Sr87/Sr86=0.71617–0.72033,Nd143/Nd144=0.512414–0.512495 and εNd=–2.79 to –4.37,εSr=245.78–305.3, showing that the magma was derived from the crust or subjected to contamination with the lower crust below the continent.

提要：以大陆碎块形式残存于北祁连造山带内部的古元古代北大河岩群早期发育有大量的斜长角闪岩，其原岩为玄武岩，Alk—∑FeO—MgO图解，REE特征，里特曼组合指数等均显示斜长角闪岩属钙碱性系列范围，个别显示弱碱性，斜长角闪岩具有较高的Al2O3，∑FeO和低的Mg#，这些特点反映其成分演化程度较高，表明火山岩的形成与古老地壳的活化有关，有较强分异的稀土元素分配模式，在Ti—Zr—Y图，Ni—FeO/MgO图解和Ta/Yb—Th/Yb图解上斜长角闪岩均显示火山弧或活动大陆边缘的特点，在玄武岩的地球化学形式图，稀土元素整体特征与钙碱性岛弧玄武岩基本相同；87Sr/86Sr=0.716 17～0.720 33， 143Nd/144Nd=0.512 414～0.512 495，εNd=-2.79～-4.37。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷