Results 11 to 20 of about 21,407,987 (264)

Design Process and Environmental Impact of Unconventional Tail Airliners

open access: yesAerospace, 2021
The future of aviation depends on reducing the environmental impact of the aircraft. Unconventional configurations can be the change the industry needs to achieve that goal.
Alejandro Sanchez-Carmona   +1 more
doaj   +1 more source

Evolutionary Synthesis of HVAC System Configurations: Algorithm Development. [PDF]

open access: yes, 2008
This paper describes the development of an optimization procedure for the synthesis of novel heating, ventilating, and air-conditioning (HVAC) system configurations. Novel HVAC system designs can be synthesized using model-based optimization methods. The
Angelov, Plamen   +4 more
core   +5 more sources

Trajectory predictions of new lift separation sabots

open access: yesDefence Technology, 2021
This paper presents a modified analytical model to evaluate the trajectories of various lift separation sabot configurations. The aerodynamic forces acting on the sabot surfaces during a supersonic flight are modeled in the present analytical model by ...
Sreelal Mohanan, Rajesh G
doaj   +1 more source

Using machine learning to predict optimal electromagnetic induction instrument configurations for characterizing the shallow subsurface [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Electromagnetic induction (EMI) is used widely for hydrological and other environmental studies. The apparent electrical conductivity (ECa), which can be mapped efficiently with EMI, correlates with a variety of important soil attributes. EMI instruments
K. M. van't Veen   +3 more
doaj   +1 more source

On the Development of an Offshore Version of the CECO Wave Energy Converter

open access: yesEnergies, 2020
Offshore locations present significant amounts of wave energy and free sea space, which could facilitate the deployment of larger numbers of wave energy converters (WECs) in comparison with nearshore regions.
Gianmaria Giannini   +3 more
doaj   +1 more source

Characteristics and Analysis of an Eddy Current Shock Absorber Damper Using Finite Element Analysis

open access: yesActuators, 2019
In the paper a model is developed for a proposed eddy current damper using finite element analysis. Several damper configurations are studied and its characteristics are analyzed. The steady state performance for the configurations is compared to reach a
Tamer M. Abdo   +3 more
doaj   +1 more source

Symmetric designs and related configurations [PDF]

open access: yes, 1972
In this paper we study combinatorial designs that are characterized by a (0, 1)-matrix A of order n ⩾ 3 that satisfies the matrix equation ATA = D + [λiλj] where AT denotes the transpose of A, D denotes the diagonal matrix D = diag[k1 − λ1, k2 − λ2 ...
Ryser, H.J
core   +1 more source

A Novel Smart Optimized Capacitance-Based Sensor for Annular Two-Phase Flow Metering With High Sensitivity

open access: yesIEEE Access, 2023
Accurately determining phase fractions in two-phase flows is among the most significant issues in Industries related to the production and processing of petroleum and petrochemicals.
Rahmad B. Y. Syah   +5 more
doaj   +1 more source

ARE THERE SIGNIFICANT DIFFERENCES BETWEEN DIRECT AND REVERSE GRINDING CIRCUITS? [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2014
The mining industry is famous for many paradigms regarding different flowsheet designs and the use of new technologies and equipment. In this context, a question often performed to process engineers is: what grinding circuit is more efficient, the ...
Douglas Batista Mazzinghy   +1 more
doaj   +1 more source

Effect of inner channel geometry on solidification performance of phase change material (PCM) in double-pipe thermal energy storage

open access: yesInternational Journal of Pioneering Technology and Engineering, 2023
Advantages such as high energy storage density and low heat losses have made phase change materials (PCMs) preferable in energy storage. However, the very low thermal conductivity of PCMs is the most important obstacle to improving melting and ...
Burak Kurşun, mehmet Balta
doaj   +1 more source

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