Results 81 to 90 of about 2,936,293 (339)

Biodiversity–food trade‐offs when agricultural land is spared from production

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Biodiversity conservation in agricultural landscapes, the world's predominant land use, could involve sparing, or setting aside, agricultural land from production, implying biodiversity–food trade‐offs. Employing bird species and agricultural data in two panel data sets, we evaluate the extent of set‐aside's trade‐offs in England between 1992 ...
Charles Palmer   +3 more
wiley   +1 more source

Improved cryogenic refrigeration system [PDF]

open access: yes, 1967
Two-position shuttle valve simplifies valving arrangement and crank-shaft configuration in gas-balancing and Stirling-cycle refrigeration systems used to produce temperatures below 173 degrees K.
Higa, W. H.
core   +1 more source

Comparison of the Net Work Output between Stirling and Ericsson Cycles

open access: yesEnergies, 2018
In this paper, we compare Stirling and Ericsson cycles to determine which engine produces greater net work output for various situations. Both cycles are for external heat engines that utilize regenerators, where the difference is the nature of the ...
Rui F. Costa, Brendan D. MacDonald
doaj   +1 more source

Low mood, worry and mind wandering in children

open access: yesBritish Journal of Developmental Psychology, EarlyView.
Abstract Previous research with adults and adolescents has established that mind wandering—characterized by a shift in attention from external tasks to internal thoughts—is associated with negative affect and reduced psychological well‐being, particularly when focused on past events.
Ellen Teague   +2 more
wiley   +1 more source

Ceramic applications in the advanced Stirling automotive engine [PDF]

open access: yes
The ideal cycle, its application to a practical machine, and the specific advantages of high efficiency, low emissions, multi-fuel capability, and low noise of the stirling engine are discussed.
Cairelli, J. E., Tomazic, W. A.
core   +1 more source

Operating single quantum emitters with a compact Stirling cryocooler [PDF]

open access: yes, 2015
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Review of Scientific Instruments 86, 013113 (2015) and may be found at https://doi.org/10.1063/1 ...
Gschrey, Manuel   +7 more
core   +1 more source

Energy, exergy, exergoeconomic, and environmental analyses and multi-objective optimization of a biomass-to-energy integrated thermal power plant

open access: yesAlexandria Engineering Journal, 2022
A novel biomass-driven heat and power cogeneration system comprising biomass gasification, a gas turbine, a Stirling engine, and a supercritical carbon dioxide cycle integrated with a domestic water heater was proposed in this work.
Fan He   +4 more
doaj  

Application of the Open Cycle Stirling Engine Driven with Liquid Nitrogen for the Non-Polluting Automobiles

open access: yesHolodilʹnaâ Tehnika i Tehnologiâ, 2017
Progress on advancing technology of using liquid nitrogen for the non-polluting automobiles is reported. It is shown that the low exergy efficiency of the known engines fueled with liquid nitrogen has discredited the very idea of a cryomobile. The design
M.B. Kravchenko
doaj   +1 more source

Strategies, costs and counter‐strategies to sexual coercion

open access: yesBiological Reviews, EarlyView.
ABSTRACT Sexual conflict, the conflict between the evolutionary interests of females and males over mating, occasionally results in the evolution of traits favourable for one sex and adverse for the other. In this context, males can use sexual coercion to increase their mating success, at the expense of their female targets' mate choice.
Nikolaos Smit
wiley   +1 more source

Overview of NASA Lewis Research Center free-piston Stirling engine technology activities applicable to space power systems [PDF]

open access: yes, 1987
Free piston Stirling technology is applicable for both solar and nuclear powered systems. As such, the Lewis Research Center serves as the project office to manage the newly initiated SP-100 Advanced Technology Program.
Slaby, J. G.
core   +1 more source

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