A series of nickel dithiolene complexes Ni[S2C2(CF3)2]2n (n = −2, −1, 0) has been investigated using Ni L- and K-edge X-ray absorption spectroscopy (XAS). The L3 centroid shifts about 0.3 eV for a change of one unit in the formal oxidation state (or 0.3 eV per oxi), corresponding to …

2011年7月1日 · In this work we present the results of the Ni K-edge EXAFS interpretation in crystalline and nanocrystalline NiO, obtained by joined use of classical molecular dynamics (MD) and ab initio multiple-scattering EXAFS theory [31].

1995年3月1日 · Transform magnitudes of Ni(lI) (solid) and Ni(l) (dashed) HTIM as contrasted with Ni(II) (solid) and Ni(I) (dashed) TDI. the XANES of a sequence of complexes generated as Ni(II)HTIM is reduced and made to coordinate carbon monoxide. The Ni(II) starting complex is six- coordinate, with two molecules of the solvent, acetonit- rile, bound.

1995年3月1日 · XAS techniques for studying structural and electronic changes taking place after oxidation and reduction reactions of nickel complexes are described and applied to selected models for Factor 430, a nickel containing cofactor catalyzing an important step in the conversion of carbon dioxide to methane by methanogenic bacteria. Biochim. Biophys. Acta.

Nickel-58 is the most abundant isotope of nickel, making up 68.077% of the natural abundance. Possible sources include electron capture from copper-58 and EC + p from zinc-59. has been used to date the terrestrial age of meteorites and to determine abundances of extraterrestrial dust in ice and sediment. (half-life = 2.6 My).

3 天之前 · Ni-E（物镜转换器调焦型）配置电动落射荧光照明器、电动聚光镜和电动可调倾角式四目镜筒. 尼康专有的分层结构可以在一台显微镜上同时安装两条光路。 该结构支持上下双层安装和独立控制激发光滤块转盘和发射光滤块转盘，可以支持各种应用。 Ni-E 的调焦机制可选择载物台调焦或物镜转换器调焦。 物镜转换器调焦支持载物台固定的实验，满足活体成像的需求。 全电动 Ni-E 机型可以根据应用需要与各种电动配件定制组合使用，包括电动 XY 载物台和电动 DSC 变 …

2020年6月1日 · Here, we show a Cu-doped Ni catalyst implanted with Ni-O-VOx sites (Ni (Cu)VOx) for alkaline HER. The optimal Ni (Cu)VOx electrode exhibits a near-zero onset overpotential and low...

Nickel steel is used for armor plates and vaults. Nickel is also used in the five-cent coins in the United States and Canada (called nickels). It also makes up crucibles that are used in chemical laboratories. One of its isotopes, nickel-56, is produced in type II supernova.

NI-DAQmx is an NI instrument driver that controls every aspect of your DAQ system, including signal conditioning, from configuration to programming in LabVIEW to low-level OS and device control. You can build your applications with measurement-specific VIs, functions, data types, and analysis integrations and reliably make faster measurements ...

中国科学院新疆天文台成立于1957年，由单一的人造卫星观测站发展成为我国西部重要的综合性天文研究机构。 目前研究领域包括射电天文、光学天文与技术应用、应用天文，主要从事脉冲星、恒星形成与演化、星系宇宙学、高能天体物理、微波接收机、数字技术应用、空间目标与碎片、卫星导航、GPS等方面的研究与观测。