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

http://repositorium.sdum.uminho.pt/bitstream/1822/48763/1/1-s2.0-S037026931200857X-main.pdf

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

https://digital.csic.es/bitstream/10261/108964/1/experiment%20at%20the%20LHC.pdf

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC

The ATLAS detector as installed in its experimental cavern at point 1 at CERN is described in this paper. A brief overview of the expected performance of the detector when the Large Hadron Collider begins operation is also presented.

The ATLAS Experiment at the CERN Large Hadron Collider

National Institute of Standards and Technology における超伝導研究及び生活

Investigation of Natural Convection Heat-Transfer Phenomena in Packed Beds: Lead-Way Toward New Nuclear Fuel Design

The National Research Foundation of South Africa (NRF), Eskom Tertiary Education Support Programme (TESP), University of Stellenbosch / University of Pretoria, South African National Energy Research Institute (SANERI) / South African National Energy Development Institute (SANEDI), Council for Scientific and Industrial Research (CSIR), Energy Efficiency and Demand Side Management (EEDSM) Hub and NAC.

/pdf/heat-transfer-direction-dependence-of-heat-transfer-1y2x18v55u.pdf

Heat transfer direction dependence of heat transfer coefficients in annuli

In this two dimensional numerical study, miniature cooling channel lay-outs were obtained using topology optimization techniques. Laminar steady state flow was considered for different inlet and outlet configurations. A pressure minimization objective was considered in this paper. The physics of the primary system was controlled via a discreet design variable set and implemented in the model using the finite volume method. To improve convection effects, design level cells were sub-divided into up to three by three computational sub cells. It was found that improved material distributions with discrete solid-to-liquid interfaces were obtained when a global (domain wise) objective function was used and the placement of solid and liquid cells were done according to the gradient-based sensitivities of the objective functions. It was found that flow-rate-specific topology optimization was needed to reduce over-all pressure drop.

/pdf/two-dimensional-topology-optimization-of-fluid-channel-4z9zs5h57d.pdf

Two-dimensional topology optimization of fluid channel distributions – pressure objective

Electrical conductivity measurements of green nanofluids prepared from carbon nanospheres dispersed in 60:40 ethylene glycol and water (60:40 EG/W) based nanofluids have been studied. In order to investigate the effect of temperature and volume concentration on the electrical conductivity of the nanofluids, the temperature was varied from 15 to 60 °C and volume fractions of 0.04, 0.1, 0.12, and 0.2 vol% were used. The results show that the electrical conductivity is greatly enhanced with an increase in temperature and volume fraction. The highest enhancement is seen at 0.2 vol% with 1470% increase in electrical conductivity. The high conductivity enhancement indicates a potential for cooling applications.

Investigation into the Electrical Conductivity of Carbon Nanosphere-Based Green Nanofluids

This study numerically investigates the thermal performance of a two-layered microchannel heat sink with varying axial length, varying solid substrate aspect ratio (ratio of height to width of the silicon solid substrate) but with a fixed total volume constraint and water as the working fluid. The optimal geometry in terms of channel hydraulic diameter, channel aspect ratio and the solid substrate aspect ratio was selected based on the minimised peak temperature on the heated base of the solid substrate with a constant heat load of 100W. The optimal aspect ratio AR of the solid substrate was discovered to be 4 for all pressure drop range considered in this study but the optimal axial length shows a dependence on pressure drop. Results of the effect of varying axial length on surface heat flux, minimised thermal resistance and temperature variation on the heated base of the solid substrate were also presented and discussed.Copyright © 2015 by ASME

Josua P. Meyer

Papers

Investigation of Natural Convection Heat-Transfer Phenomena in Packed Beds: Lead-Way Toward New Nuclear Fuel Design

Heat transfer direction dependence of heat transfer coefficients in annuli

Two-dimensional topology optimization of fluid channel distributions – pressure objective

Investigation into the Electrical Conductivity of Carbon Nanosphere-Based Green Nanofluids

Numerical Investigation Into the Thermal Performance of Two-Layered Microchannels With Varying Axial Length and Temperature Dependent Fluid Properties