Results 31 to 40 of about 599,718 (310)

Bounded gain of energy on the breathing circle billiard

open access: yesNonlinearity, 1999
The Breathing Circle is a 2-dimensional generalization of the Fermi Accelerator. It is shown that the billiard map associated to this model has invariant curves in phase space, implying that any particle will have bounded gain of energy.
Oliffson Kamphorst, Sylvie   +1 more
openaire   +2 more sources

Achieving improved cycle efficiency via pressure gain combustors [PDF]

open access: yes, 1995
As part of the Department of Energy`s Advanced Gas Turbine Systems Program, an investigation is being performed to evaluate ``pressure gain`` combustion systems for gas turbine applications.
William A. Rogers   +9 more
core   +1 more source

Electron energy-gain spectroscopy

open access: yesNew Journal of Physics, 2008
8 pags., 2 figs. We introduce electron energy-gain spectroscopy as a tool to yield information on local optical excitations of nanostructured systems using transmission electron microscopes equipped with external optical illumination. The new spectroscopy combines the superb spatial resolution of electron microscopes with unprecedented energy ...
García de Abajo, Francisco Javier   +1 more
openaire   +2 more sources

Nexus Between Economic Development and Energy Poverty to Gain Energy Efficiency: Empirical Evidence From China

open access: yesFrontiers in Energy Research, 2022
Graphical ...
Muhammad Khalid Anser   +5 more
doaj   +1 more source

Energy Gaining Windows for Residential Buildings

open access: yes, 2008
This paper presents three different low energy windows for residential buildings which have been developed at the Technical University of Denmark during the last 8 years. The three windows are designed to maximize the net energy gain. The net energy gain of windows is the solar gain minus the heat loss integrated over the heating season. The solar gain
Kragh, Jesper   +3 more
openaire   +3 more sources

Gain-loss induced non-Abelian Bloch braids

open access: yes, 2023
Onsite gain-loss induced topological braiding principles of non-Hermitian energy bands is theoretically formulated in multiband lattice models with Hermitian hopping amplitudes.
B. Midya (16440891)
core   +1 more source

Jerusalem Artichoke: Energy Balance in Annual and Perennial Cropping Systems—A Case Study in North-Eastern Poland

open access: yesEnergies
This article presents the results of a three-year experiment (2018–2020) conducted at the Agricultural Experiment Station in Bałcyny (north-eastern Poland) with the aim of determining Jerusalem artichoke (JA) yields and the energy balance of biomass ...
Krzysztof Józef Jankowski   +1 more
doaj   +1 more source

Hubungan antara total asupan energi dan komponen makrontrien dengan penambahan berat badan ibu hamil di Kecamatan Pedurungan Kota Semarang

open access: yesJurnal Gizi Indonesia: The Indonesian Journal of Nutrition, 2020
Background: Gestational weight gain (GWG) is physiological change in pregnancy. Inadequate gestational weight gain (IGWG) and excessive gestational weight gain (EGWG) can pose a risk of complication such as gestational hypertention, low birth weight ...
Yuli Astuti   +2 more
doaj   +1 more source

The water–energy–food (WEF) security nexus: the policy perspective of Bangladesh

open access: yes, 2015
This paper provides a review of the emerging literature on the water?energy?food (WEF) nexus and then analyses the nexus in the context of Bangladesh. Results suggest that the WEF nexus is not yet recognized in the policy documents of Bangladesh, while ...
Gain, Animesh K.   +3 more
core   +1 more source

Integrated spatial assessment of the water, energy and food dimensions of the Sustainable Development Goals

open access: yes, 2017
Water is considered the bloodstream of the biosphere, but its management is one of the most important challenges for human development. In view of the sustainable water management, several approaches have been proposed: Integrated Water Resources ...
Gain, Animesh Kumar, Giupponi, Carlo
core   +1 more source

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