Results 31 to 40 of about 418,965 (388)

Analysis and Optimization of a Microchannel Heat Sink with V-Ribs Using Nanofluids for Micro Solar Cells

open access: yesMicromachines, 2019
It is crucial to control the temperature of solar cells for enhancing efficiency with the increasing power intensity of multiple photovoltaic systems. In order to improve the heat transfer efficiency, a microchannel heat sink (MCHS) with V-ribs using a ...
Ruijin Wang, Jiawei Wang, W. Yuan
semanticscholar   +1 more source

Design of Composite Gyrocopter Main Rotor Blade Involving Rib and Spar Elements [PDF]

open access: yesJournal of Engineering, Project, and Production Management, 2019
Gyrocopter or gyroplane is a type of rotorcraft that uses an unpowered main rotor in free autorotation to develop lift. Gyrocopter rotor blades have smaller cord length and longer span compared to helicopters blades.
Yonas Mitik Degu, Derbew Alebel
doaj   +1 more source

Dome Over The Gdynia Seaport Building

open access: yesArchives of Civil Engineering, 2014
The paper presents the description of structure and the selected problems of the technical condition, as well as the strength analysis of the thin-walled reinforced concrete shell which has been making a covering of the main hall of the Gdynia Seaport ...
Godycki-Ćwirko T.   +2 more
doaj   +1 more source

Analysis of laminar flow and heat transfer in an interrupted microchannel heat sink with different shaped ribs

open access: yesJournal of Thermal Analysis and Calorimetry, 2019
A numerical study was conducted to investigate the mechanism of laminar flow and heat transfer enhancement in an interrupted microchannel heat sink (IMCHS) with different shaped ribs at Reynolds number ranging from 100 to 900.
Wei Wang   +4 more
semanticscholar   +1 more source

10th Rib Cartilage: Another Option of the Costal Cartilage Graft for Rhinoplasty [PDF]

open access: yesArchives of Aesthetic Plastic Surgery, 2015
Background The costal cartilage allows for versatile and stable cartilage supply for rhi-noplasty but disadvantages remain; to minimize these, the 10th costal cartilage was used.
Jae Hoon Kim   +4 more
doaj   +1 more source

Numerical and Experimental Investigation of Heat Transfer Features in a Square Duct with Internal Ribs

open access: yesWasit Journal of Engineering Sciences, 2018
In this work, experimental investigation and numerical prediction were completed to study the heat transfer for disturbed flow in square passage heated from upper and lower aspect through the use of technology to heighten the heat transfer action by the
Ali Shokor Golam
doaj   +1 more source

Simonsenia aveniformis sp nov (Bacillariophyceae), molecular phylogeny and systematics of the genus, and a new type of canal raphe system [PDF]

open access: yes, 2015
The genus Simonsenia is reviewed and S. aveniformis described as new for science by light and electron microscopy. The new species originated from estuarine environments in southern Iberia (Atlantic coast) and was isolated into culture. In LM, Simonsenia
A Gomes   +41 more
core   +1 more source

Radiographic characteristics of asthma

open access: yesLung India, 2013
Objectives: A novel and interesting observation is that ribs go less sloped in asthma patients′ radiograph than non-asthmatics people. The aim of this study was to investigate whether a smaller horizontal curve of the ribs is a special trait on chest ...
Yu-Jang Su
doaj   +1 more source

Influence of the boundary conditions on the natural frequencies of a Francis turbine [PDF]

open access: yes, 2016
Natural frequencies estimation of Francis turbines is of paramount importance in the stage of design in order to avoid vibration and resonance problems especially during transient events.
Bossio, Matias   +5 more
core   +1 more source

Design of the structural arrangement for a space reflector via parametric and topology optimization

open access: yesRUDN Journal of Engineering Research, 2019
Development of the optimal structural arrangement for a reflector with the aim to improve its mass and design is of importance due to the necessity to increase areal density and decrease rigidity of the modern space antennas vehicles.
Elena K. Filina   +3 more
doaj   +1 more source

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