There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

Elements Of X Ray Diffraction

Colloidal nanocrystals are nanometer-sized, solution-grown inorganic particles stabilized by a layer of surfactants attached to their surface. The inorganic cores exhibit useful properties controlled by composition as well as size and shape, while the surfactant coating ensures that these structures are easy to fabricate and process. It is this combination of features that makes colloidal nanocrystals attractive and promising building blocks for advanced materials and devices. But their full potential can only be exploited if we achieve exquisite control over their composition, size, shape, crystal structure and surface properties. Here we review what is known about nanocrystal growth and outline strategies for controlling it.

Colloidal nanocrystal synthesis and the organic-inorganic interface

Optical processes in semiconductors by Jacques I. Pankove (Solid state physical electronic series) (Prentice-Hall, Inc., 1971) 420 pages, price $21.00.

Optical analysis, optical limiting and electrical properties of novel PbI2/PVA polymeric nanocomposite films for electronic optoelectronic applications

Finite antimonene nanoribbons are investigated using density functional theory calculations. Attaching chemical groups, like COOH and OH, to the edges has been successfully attained with negligible deformation and moderate binding energy. They are semiconductors with energy gap ∼2.3 eV that slightly affected by attaching groups such as C2H5 or significantly decreases to 1.8 eV by attaching NO. The optical gaps, from 1.5 eV to 2 eV, are lower than the electronic ones which indicate the existence of excitonic transitions that appear due to the quantum confinement in the finite nanoribbons. Oxygen evolution on the edges shows better catalytic activity than on the surface due to the moderate adsorption of reaction intermediates in the former. Thus, the nanoribbons are preferable for water oxidation than the bulk antimonene. Attaching chemical groups slightly worsen the process due to the stronger adsorption of reaction intermediates. A minimum overpotential of 0.38 V has been achieved in unmodified zigzag-nanoribbons. This value in addition to the appropriate energy gap make antimonene nanoribbons excellent photocatalysts for water splitting.

Electronic, optical, and catalytic properties of finite antimonene nanoribbons: first principles study

A Novel Correction Method Toward Extraction of Reflectance and Linear Refractive Index of Some Borosilicate Glasses Doped with BaTiO3

LPG gas sensing and humidity sensing studies of gamma irradiated Co0.5Ni0.5Ce0.01Fe1.99O4 nanocomposite thin film for sensor application

Thermally evaporated of homogeneous nanostructured gallium-phthalocyanine-chloride films: Optical spectroscopy

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