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

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications

The richness of optical and electronic properties of graphene attracts enormous interest. Graphene has high mobility and optical transparency, in addition to flexibility, robustness and environmental stability. So far, the main focus has been on fundamental physics and electronic devices. However, we believe its true potential lies in photonics and optoelectronics, where the combination of its unique optical and electronic properties can be fully exploited, even in the absence of a bandgap, and the linear dispersion of the Dirac electrons enables ultrawideband tunability. The rise of graphene in photonics and optoelectronics is shown by several recent results, ranging from solar cells and light-emitting devices to touch screens, photodetectors and ultrafast lasers. Here we review the state-of-the-art in this emerging field.

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Graphene photonics and optoelectronics

Silver nanoparticles as antimicrobial agent: a case study on E. coli as a model for Gram-negative bacteria

Thermochromism of VO2 nanoparticles: Calculated optical properties and applications to energy efficient windows.

Nanoparticles can be generated by several different gas phase methods, such as gas deposition, laser-assisted chemical vapor deposition, and laser ablation Some of the most important aspects - such as size-distribution, structure, and chemical composition of the generated nanoparticles (specifically W and WO 3 ) - are presented and compared WO 3 nanoparticle films were deposited by an advanced gas deposition technique and were tested for sensor applications Two different sensor devices were fabricated: Firstly, a thin Au-WO 3 nanoparticle sandwich film was constructed, and conductance fluctuations of the Au film were measured as the sensor was exposed to alcohol vapor Secondly,
conductivity changes of a thick WO 3 nanoparticle film were detected as it was exposed to test gases (H 2 S, NO 2 , and CO)

Nanoparticle films made by gas phase synthesis: comparison of various techniques and sensor applications

Noise-based logic is a practically deterministic logic scheme inspired by the randomness of neural spikes and uses a system of uncorrelated stochastic processes and their superposition to represent the logic state. We briefly discuss various questions such as (i) What does practical determinism mean? (ii) Is noise-based logic a Turing machine? (iii) Is there hope to beat (the dreams of) quantum computation by a classical physical noise-based processor, and what are the minimum hardware requirements for that? Finally, (iv) we address the problem of random number generators and show that the common belief that quantum number generators are superior to classical (thermal) noise-based generators is nothing but a myth.

/pdf/bird-s-eye-view-on-noise-based-logic-2fluql4kas.pdf

Bird's-eye view on noise-based logic

The present conference on solar photovoltaic (PV) and photoelectrochemical (PEC) devices discusses charge-carrier photogeneration in organic solar cells, the kinetics of charge-transfer reactions in PEC solar cells, PV devices from II-VI films, the defect pool-gap state distribution in amorphous-Si:H in equilibrium and under photoexcitation, and the second phases in CdS/CuInSe2 solar cells. Also treated are MOCVD of FeS for solar energy conversion, nanostructured TiO2 films, the optical properties of pyrite thin films annealed at different temperatures, the surface modification of CuGaSe2 thin films via PEC methods, organic and inorganic materials for PV and PEC devices, and the synthesis and testing of organic semiconductor solar cells.

Optical materials technology for energy efficiency and solar energy conversion XI: Photovoltaics, photochemistry, and photoelectrochemistry; Proceedings of the Meeting, Toulouse, France, May 19, 21, 1992

Claes-Göran Granqvist

Papers

Thermochromism of VO2 nanoparticles: Calculated optical properties and applications to energy efficient windows.

Nanoparticle films made by gas phase synthesis: comparison of various techniques and sensor applications

Bird's-eye view on noise-based logic

Optical materials technology for energy efficiency and solar energy conversion XI: Photovoltaics, photochemistry, and photoelectrochemistry; Proceedings of the Meeting, Toulouse, France, May 19, 21, 1992

Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIV