Results 31 to 40 of about 208,745 (304)

The combined effects of filling ratio and inclination angle on thermal performance of a closed loop pulsating heat pipe

open access: yes, 2021
In the present study, a series of experiments are conducted to investigate the thermal performance of a copper made pulsating heat pipe consisting of uniform flow passages with the cross section of 2 mm x 2 mm.
Aksoy, Kübra, Markal, Burak
core   +1 more source

Predicting the pore-filling ratio in lumen-impregnated wood [PDF]

open access: yesWood Science and Technology, 2017
Lumen impregnation, unlike most other wood modification methods, is typically assessed by the pore-filling ratio (PFR) (i.e. the fraction of luminal porosity filled) rather than by weight percentage gain (WPG). During lumen impregnation, the impregnants act on the voids in the wood rather than on the solid mass (e.g.
Wu, G   +8 more
openaire   +2 more sources

Investigation of the Effect of Filling Ratio on Mechanical Properties of Pumice Filled Epoxy-Based Composites.

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, 2023
This study attempted to fill epoxy, a widely used industrial material, with pumice, a cheap volcanic rock, in order to form a composite material. The objective was to evaluate the worth of the pumice and improve the mechanical properties of the epoxy. Composite samples with no filler, 10%, 20%, or 30% filler were produced.
openaire   +4 more sources

Heat transfer enhancement by diamond nanofluid in gravity heat pipe for waste heat recovery

open access: yesFunctional Diamond, 2022
Waste heat recovery is significant for improving energy utilization, reducing carbon emissions, and neutrality. The gravity heat pipe (GHP) has excellent thermal performance due to the cyclic phase transformation of the working fluid.
Ning Qian   +5 more
doaj   +1 more source

Experimental and Theoretical Study on Operation Characteristics of an Oscillating Heat Pipe

open access: yesApplied Sciences, 2023
An oscillating heat pipe (OHP) is an effective heat transfer device for the thermal management of electronic devices. However, the heat transfer mechanism of the OHP was not fully understood due to its complicated operation characteristics. In this paper,
Yunzhi Ling   +4 more
doaj   +1 more source

Factors influencing ratios of filled pauses at clause boundaries in Japanese

open access: yesLinguistic Proceedings Series, 2006
Speech disfluencies have been studied as clues to human speech production mechanisms. Major constituents are assumed to be principal units of planning and disfluencies are claimed to occur when speakers have some trouble in planning such units. We tested two hypotheses about the probability of disfluencies by examining the ratios of filled pauses ...
Michiko Watanabe   +4 more
openaire   +2 more sources

Visualization and Heat Transfer Performance of Mini-Grooved Flat Heat Pipe Filled with Different Working Fluids

open access: yesMicromachines, 2022
Mini-grooved flat heat pipe (MGFHP) possesses the advantages of high compactness, no mechanical component, super thermal conductivity, and excellent temperature uniformity, which can meet the demand for electronic devices efficiently cooling.
Fei Xin, Qiang Lyu, Wenchao Tian
doaj   +1 more source

The influence of the ""penetration-"" and the ""filling-ratios"" on the pull-out strength of transpedicular screws

open access: yes, 2009
The stress field developed in the human lumbar vertebral bone due to the presence of transpedicular fixation screws is studied in an attempt to quantify the force required to pull the screw out of the bone.
Kourkoulis, SK   +4 more
core   +1 more source

A Fully Resolved Model of Compressible Flow with Phase Change Inside a Thermosyphon Heat Pipe: Validation and Predictive Analysis

open access: yesFluids
Thermosyphon heat pipes (THPs) are increasingly employed in advanced thermal management applications due to their highly effective thermal conductivity, compact design, and passive operation.
Hammouda Mahjoub   +4 more
doaj   +1 more source

Mitral peak Doppler E-wave to peak mitral annulus velocity ratio is an accurate estimate of left ventricular filling pressure and predicts mortality in end-stage renal disease

open access: yes, 2006
Objective The study aimed to assess whether the mitral peak Doppler E-wave to peak mitral annulus velocity ratio (E/Ea) estimates left ventricular (LV) filling pressure (LVFP) and predicts mortality in end-stage renal disease.
Collinson, P.O.   +7 more
core   +1 more source

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