Results 21 to 30 of about 4,273,327 (299)

Calculation of Reasonable Tension Value for Longitudinal Connecting Reinforcement of CRTSII Slab Ballastless Track

open access: yesApplied Sciences, 2018
There is confusion in the original design concept for the tensioning of longitudinally connected reinforcement of the CRTSII (China Railway Track System) slab ballastless track.
Long Chen, Jinjie Chen, Jianxi Wang
doaj   +1 more source

Optimization of Daylighting, Ventilation, and Cooling Load Performance of Apartment in Tropical Ocean Area Based on Parametric Design

open access: yesAdvances in Civil Engineering, 2021
In tropical areas of China, energy saving is an important part of architectural design, and the energy-saving potential of residential buildings has attracted extensive attention.
Jianjian Zhang, Lin Ji
doaj   +1 more source

Moral Status and Agent-Centred Options [PDF]

open access: yes, 2019
If we were required to sacrifice our own interests whenever doing so was best overall, or prohibited from doing so unless it was optimal, then we would be mere sites for the realisation of value.
Lazar, Seth
core   +1 more source

Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation [PDF]

open access: yes, 2003
Recent released WMAP data show a low value of quadrupole in the CMB temperature fluctuations, which confirms the early observations by COBE. In this paper, a scenario, in which a contracting phase is followed by an inflationary phase, is constructed.
A. Kogut   +78 more
core   +1 more source

Value Feelings: A Defense

open access: yesPhilosophies, 2023
The goal of this paper is to provide an initial defense of a neglected epistemology of value according to which a fundamental mode of access to evaluative facts and properties is constituted by a distinctive kind of feeling, sometimes called ‘value ...
Hichem Naar
doaj   +1 more source

Charge Symmetry Violation in $pn\to d \pi^0$ as a Test of Chiral Effective Field Theory [PDF]

open access: yes, 2000
Chiral effective field theory predicts a specific charge symmetry violating amplitude for pion production. This term is shown to provide the dominant contribution to the forward-backward asymmetry in the angular distribution for the reaction $pn\to d\pi ...
Miller, G. A.   +2 more
core   +2 more sources

Calculation on a reasonable production/injection well ratio in waterflooding oilfields

open access: yesPetroleum Exploration and Development, 2011
According to the accurate definition of the reasonable production/injection well ratio and injection/production ratio for waterflooding oilfields, the formula of the reasonable production/injection well ratio under the same or different formation ...
Cunyou Zou   +3 more
doaj   +1 more source

Reionization from cosmic string loops [PDF]

open access: yes, 2006
Loops formed from a cosmic string network at early times would act as seeds for early formation of halos, which would form galaxies and lead to early reionization. With reasonable guesses about astrophysical and string parameters, the cosmic string scale
Alexander Vilenkin   +2 more
core   +2 more sources

Research on coal pillar width and control of gob side entry with fully-mechanized caving mining in extra thick coal seam

open access: yesMeikuang Anquan, 2021
In order to study the reasonable width of coal pillar in gob side entry of fully mechanized top coal caving in extra thick coal seam, the 8305 working face is taken as the research object, and the method of theoretical analysis, numerical simulation and
GUO Jingang   +3 more
doaj   +1 more source

The Dyer-Roeder distance-redshift relation in inhomogeneous universes [PDF]

open access: yes, 2001
Using Monte-Carlo methods, we determine the best-fit value of the homogeneity parameter alpha in the Dyer-Roeder distance-redshift relation for a variety of redshifts, inhomogeneity models and cosmological parameter values. The relation between alpha and
Alcock   +7 more
core   +2 more sources

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