Results 51 to 60 of about 60,589 (166)

Experimental Studies and Performance Characteristics Analysis of a Variable-Volume Heat Pump in a Ventilation System

Applied Sciences
Air-to-air heat pumps are used in today’s ventilation systems increasingly often as they provide heating and cooling for buildings. The energy transformation modes of these units are subject to constant change due to the varying outdoor air state ...
Anton Frik, Juozas Bielskus, Rasa Džiugaitė-Tumėnienė, Violeta Motuzienė   +3 more
doaj   +1 more source

The numbers of ringed seals (Phoca hispida) in Baffin Bay and associated waters

NAMMCO Scientific Publications, 1998
The size of the population of ringed seals (Phoca hispida) inhabiting Baffin Bay and associated waters was estimated by two methods. An approximate model of the energetics of the polar bear (Ursus maritimus) estimated an energetic need of about 16,000 MJ/
Michael C S Kingsley
doaj   +1 more source

Linking Gait Dynamics to Mechanical Cost of Legged Locomotion

Frontiers in Robotics and AI, 2018
For millenia, legged locomotion has been of central importance to humans for hunting, agriculture, transportation, sport, and warfare. Today, the same principal considerations of locomotor performance and economy apply to legged systems designed to serve,
David V. Lee, Sarah L. Harris
doaj   +1 more source

Application of Evolutionary Algorithms and Statistical Analysis in the Numerical Optimization of an Axial Compressor

International Journal of Rotating Machinery, 2005
The purpose of this work is to optimize the stator shape of an axial compressor, in order to maximize the global efficiency of the machine, fixing the rotor shape. We have used a 3D parametric mesh and the CFX-Tascflow code for the flow simulation.
Alberto Clarich, Giovanni Mosetti, Valentino Pediroda, Carlo Poloni   +3 more
doaj   +1 more source

Solar energy potential assessment in the MENA and Mediterranean Regions

Journal of King Saud University: Engineering Sciences
Assessing the solar energy potential in the MENA/Mediterranean regions is of paramount importance, especially considering the environmental and economic benefits of solar energy sources.
Anas Hajou, Youness El Mghouchi
doaj   +1 more source

X-ray free-electron lasing in a flying-focus undulator

Communications Physics
Laser-driven free-electron lasers (LDFELs) replace magnetostatic undulators with the electromagnetic fields of a laser pulse. Because the undulator period is half the wavelength of the laser pulse, LDFELs can amplify X rays using lower electron energies ...
D. Ramsey, B. Malaca, T. T. Simpson, M. S. Formanek, L. S. Mack, J. Vieira, D. H. Froula, J. P. Palastro   +7 more
doaj   +1 more source

Prominent fin-contributed swimming in squid (Loligo forbesii) supports efficient movement in seamount habitats

Royal Society Open Science
Animal movements and the associated energy costs dictate an individual’s scope for activity and habitat use. Yet in situ measurements of movement often fail to quantify whole-body movement and their physiological costs. These challenges lead to data gaps
Seth Cones, Nathan Formel, Jorge Fontes, Pedro Afonso, K. Alex Shorter, Gonçalo Graça, C. Robert Priester, Diya Das, T. Aran Mooney   +8 more
doaj   +1 more source

An Energetics of Quasar [PDF]

Progress of Theoretical Physics, 1965
openaire   +1 more source

Age-related changes to brain energetics revealed by PET/MRI imaging. [PDF]

Neuroimage Clin
Bevington CWJ, Dhaliwal S, McKenzie J, Stoessl AJ, Sossi V.   +4 more
europepmc   +1 more source

Quantitative design principles for biofunctional metal-organic frameworks: Stability thresholds, biointerface energetics, and therapeutic applications. [PDF]

Mater Today Bio
Bohlooli M, Khajeh M, Ghaffari-Moghaddam M, Pakdel A.   +3 more
europepmc   +1 more source