Results 31 to 40 of about 615,898 (239)

Substantiation of the Design Features of Sandwich Panels for Container Wall Lining

open access: yesNauka ta progres transportu, 2023
Purpose. The main purpose of this work is to substantiate the design features of sandwich panels for the manufacture of container walls of size 1SS. Methodology.
G. L. Vatulia   +3 more
doaj   +1 more source

Age-dependent cognitive inflexibility in great apes [PDF]

open access: yes, 2015
The ability to suppress and/or change behaviour on the basis of negative feedback, often conceptualized as cognitive flexibility, has rarely been investigated in nonhuman great apes across a broad age range. In this study, 25 chimpanzees, Pan troglodytes,
Call, Josep, Marin Manrique, Hector
core   +1 more source

Numerical analysis of rectangular fins in a PCM for low-grade heat harnessing [PDF]

open access: yes, 2020
Harnessing waste thermal energy from greywater (GW) in non-industrial buildings is becoming necessary to reduce energy demands, make heating/cooling technologies more efficient and to increase the share of renewables in the consumption.
Liu, Shuli   +2 more
core   +1 more source

Packing Soft Polygons in a Minimum Height Rectangular Target Domain

open access: yesКібернетика та комп'ютерні технології
The paper studies packing polygons of variable shapes, regarding the stretching coefficient, in a rectangular target domain of minimum height. Packing objects of a variable shape have a wide spectrum of applications, e.g, in biology, materials science ...
Oksana Melashenko   +4 more
doaj   +1 more source

On the Melting Process of the Phase Change Material in Horizontal Rectangular Enclosures

open access: yesEnergies, 2019
Phase change material (PCM) is one of the most important ways to store and manage energy. The melting process of PCM in a rectangular enclosure with the different aspect ratio is frequently related to some thermal energy storage devices.
Juan Duan, Yongliang Xiong, Dan Yang
doaj   +1 more source

Phantoms for Development of Microwave Sensors for Noninvasive Blood Glucose Monitoring

open access: yesInternational Journal of Antennas and Propagation, 2015
A suitability of two different liquid phantoms of blood-glucose solutions as phantoms for development of microwave sensors for noninvasive blood glucose monitoring is compared.
Jan Vrba, Jakub Karch, David Vrba
doaj   +1 more source

Experimental study on transient behavior of embedded spiral-coil heat exchanger [PDF]

open access: yesMechanical Sciences, 2015
Spiral coil offers a substantial amount of heat transfer area at a considerably low cost as it does not only have a lower wall resistance but it also achieves a better heat transfer rate in comparison to conventional U-tube arrangement.
E. I. Jassim
doaj   +1 more source

Thermal behavior of heat storage system with incorporating nanomaterial

open access: yesCase Studies in Thermal Engineering, 2022
This work wishes to model influence of nano-powders with various shapes on acceleration of freezing of water inside the container with rectangular fins.
Piyu Li   +5 more
doaj   +1 more source

Evaluation of electric and magnetic fields distribution and SAR induced in 3D models of water containers by radiofrequency radiation using FDTD and FEM simulation techniques

open access: yes, 2014
In this study, two software packages using different numerical techniques FEKO 6.3 with Finite-Element Method (FEM) and XFDTD 7 with Finite Difference Time Domain Method (FDTD) were used to assess exposure of 3D models of square, rectangular, and ...
Abdelsamie, Maher A. A.   +3 more
core   +1 more source

A Model-Based Heuristic for Packing Soft Rotated Rectangles in an Optimized Convex Container with Prohibited Zones

open access: yesMathematics
Packing soft rectangular objects in an optimized convex container is considered. Each soft rectangle can be freely translated and rotated, has a fixed area, and its dimensions can vary in certain limits.
Oksana Melashenko   +5 more
doaj   +1 more source

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