查询词典 NI

The simulation results showed a superheating about 193K in the Ag nanowires which is coated by Ni.

结果表明：自由Ag纳米线的熔点比大块Ag的平衡熔点低，而被高熔点的Ni包覆的Ag纳米线的熔点比Ag的平衡熔点高，即有过热存在。

The results show that nano-crystalline NiAl intermetallic compound can be synthesized by MA taking elemental powders of NixAl100-x(x＝25,30,40,50) as green reactants. Supersaturating solid solution NiAl intermetallic compound can be synthesized by MA using nonstoichiometric Ni-Al powders, and the synthesis mechanism is combustion reaction which includes forced solid solution based on atomic diffusion.

研究表明：NixAl100-x四种成分的元素粉末通过机械合金化方法均制备出纳米晶NiAl金属间化合物粉末；非化学计量配比成分的Ni-Al粉末通过机械合金化合成NiAl过饱和固溶合金，其机械合金化合成机理为含有以原子扩散为基础的强制固溶的燃烧合成反应。

In this paper, the surface modification of Ni catalyst by adding promoters and plasma treatment was studied.

本文主要研究添加助剂和等离子体对Ni基催化剂的改性效果和作用机理。

The substitution of alkaline-earth metals for Ni improves the photocatalytic activity of MNb2O6. After UV irradiation for 10h, the concentrations of RhB/SrNb2O6 suspension and RhB/BaNb2O6 suspension are degraded to 21% and 37%, respectively.

结果表明，碱土金属Sr、Ba对NiNb2O6中Ni的取代能很好地提高铌酸盐的光催化效果，在10h紫外光照射下能分别将RhB的浓度降解到原来的21%和37%。

A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonateas sedimentation .A includes alkaline-earth metals such as Mg, Ca, Sr, Ba and rare-earth metalsLa; while B includes transition metal Cr, Mn, Fe, Co and Ni.

本文以A，B的硝酸盐为原料，以氨水或碳酸钠为沉淀剂，利用混合沉淀的方法合成了系列钙钛矿型氧化物。A选碱土金属元素Mg、Ca、Sr、Ba等及稀土金属元素La；B选过渡金属元素Cr、Mn、Fe、Co、Ni等。

When the concentrations of tetrabutyl ammonium bromide and KI in solution were 5.0×10^(-4) mol/L and 3.0×10^(-3)mol/L at pH 3.0, Bi(superscript 3+) could be quantitatively separated from Mo, Ga(superscript 3+), Co(superscript 2+), Mn(superscript 2+), Zn(superscript 2+), Rh(superscript 3+), Al(superscript 3+), Cr, V, Ni(superscript 2+), Sn, W and Fe(superscript 2+).

当溶液中溴化四丁基铵和碘化钾的浓度分别为5.0×10^(-4) mol/L和3.0×10^(-3)mol/L和在PH3时，Bi(上标 3+)可与Mo，Ga(上标 3+)，Co(上标 2+)，Mn(上标 2+)，Zn(上标 2+)，Rh(上标 3+)，Al(上标 3+)，Cr，V，Ni(上标 2+)，Sn，W和Fe(上标 2+)定量分离。

Ni nanowire arrays compounded with Zn were fabricated by electrodeposition using porous anodic aluminum oxide membrane as templates in acidic coating bath at room temperature.

采用直流电化学沉积方法，在多孔阳极氧化铝模板纳米孔洞中制备出直径约90nm，长度超过10μm的金属Ni/Zn纳米线有序阵列。

Electroless Ni-Co-Fe-P alloys were deposited from a soft alkaline bath, containing boric acid as a buffer agent and sodium citrate as a complexing agent. The effect of the bath pH value on the coating structure was investigated by energy-dispersive X-ray spectral analysis, scanning electron microscope and X-ray diffractrometry.

摘 要：采用H3BO3为缓冲剂、柠檬酸钠为络合剂，在弱碱性体系中化学沉积Ni-Co-Fe-P合金，运用能谱分析仪、扫描电镜和X射线衍射仪研究镀液pH值对合金结构的影响。

The PCR products were examined by agarose gel electrophoresis. The target gene fragments were purified by gel extraction kit and ligated to cloning vector pMD18-T. The recombinant vectors were transformed into host strain E. coli K802 by lithium chloride method, screened and identified with PCR and restrictive enzymatic digestion. Their sequences were confirmed by DNA sequencing.(2) sTWEAK1 gene was subcloned into expression vector pProEx HTb and transformed into E. coli BL21. sTWEAK2 gene was subcloned into expression vector pMAL-C2x and transformed into E. coli TB1. The recombinant vectors were screened and identified with PCR and restrictive enzymatic digestion. The recombinant fusion proteins were induced to express with IPTG, detected by coomassie brilliant blue-stained SDS-polyacrylamide gel electrophoresis , and confirmed by Western blot analysis.(3) The sTWEAK1 fusion protein was purified with Ni-NTA Spin Kit.(4) The biological activity was assayed on transformed and tumor cells by microplate photometer after crystal violet or sulfur rodamine B staining.(5) The contents of IL-8 in the supernatant of 1990 cell cultures were determined by ELISA.(6) The morphological changes of the sensitive cells were observed by light and transmission electron microscopies.(7) The cell cycle and apoptotic rate were assayed by flow cytometry in 1990 and M85 cells.(8) The effect of fusion proteins on induction of NF-κB in 1990 and LOVO cells was detected with Dual-Luciferase Reporter Assay system.(9) The TWEAK gene was subcloned into Adeno-X Viral DNA with pShuttle vector and transfected into HEK293 cells by lipofectamine method.

(1)本研究用RT-PCR方法，从人组织细胞总RNA中扩增可溶性TWEAK胞外区（sTWEAK1和sTWEAK2）的cDNA序列及全长编码序列，用琼脂糖凝胶电泳分析PCR产物，胶回收目的基因片段，连接到pMD18-T克隆载体中，转化大肠杆菌K802，PCR和酶切筛选阳性克隆，全自动DNA测序验证序列；(2)sTWEAK1和sTWEAK2分别亚克隆到pProEx HTb和pMAL-C2x表达载体中，分别转化大肠杆菌BL21和TB1，PCR筛选和酶切鉴定，阳性克隆用IPTG诱导表达，表达产物用SDS-PAGE分析和Western blot验证融合蛋白；(3)用NTA-Ni Spin试剂盒初步分离纯化sTWEAK1融合蛋白；(4)用体外培养的肿瘤细胞和正常对表达产物进行活性检测，贴壁细胞用结晶紫染色法，悬浮细胞用磺酰罗丹明B染色法，酶标仪检测OD值；(5)敏感细胞用ELISA法检测细胞培养上清中IL-8的含量；(6)用光镜和电镜观察敏感细胞死亡和细胞凋亡情况；(7)用流式细胞仪分析表达产物对敏感细胞凋亡率和细胞周期的影响；(8)用双荧光素酶报告基因检测法，测定表达产物对敏感细胞NF-κB的影响；(9)用pShuttle穿梭质粒将TWEAK重组到腺病毒载体上，用脂质体转染法转染HEK293细胞，PCR鉴定重组质粒。

In this paper the surface strengthening of the die and mould are studied by brush electro-plating Ni-W coating.

中文摘要：本文研究了电刷镀Ni-W合金镀层的方法对模具表面进行强化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。