Results 21 to 30 of about 1,199,939 (304)

The constraint on the spin dependent structure function $g_1$ at low $Q^2$ through the sum rule corresponding to the moment at $n=0$ [PDF]

open access: yes, 2007
The sum rules for the spin dependent structure function $g_1^{ab}$ in the null-plane formalism corresponding to the moment at $n=0$ has been transformed to the sum rule which relates the $g_1^{ab}$ with the cross section of the isovector photon or the ...
Koretune, Susumu
core   +2 more sources

Spontaneous Formation of Titanium Nitride on the Surface of a Ti Rod Induced by Electro-Discharge-Heat-Treatment in an N2 Atmosphere

open access: yesArchives of Metallurgy and Materials, 2017
A single pulse of 2.0 to 3.5 kJ of input energy from a 450 mF capacitor was applied to a commercially pure Ti rod in a N2 atmosphere. The surface of the Ti rod transformed from TiO2 into titanium nitride in times as short as 159 msec, providing a bimodal
Lee W.H.   +5 more
doaj   +1 more source

C‐section increases cecal abundance of the archetypal bile acid and glucocorticoid modifying Lachnoclostridium [clostridium] scindens in mice

open access: yesPhysiological Reports, 2022
In humans and animal models, Cesarean section (C‐section) has been associated with alterations in the taxonomic structure of the gut microbiome. These changes in microbiota populations are hypothesized to impact immune, metabolic, and behavioral ...
Sean H. Adams   +7 more
doaj   +1 more source

Key Transmission Section Search Based on Graph Theory and PMU Data for Vulnerable Line Identification in Power System

open access: yesJournal of Electrical and Computer Engineering, 2023
Failure of vulnerable lines in the power system often results in tidal shifts, and triggering chain failures and their corresponding transmission sections are concentrated manifestations of the weak links in the power system.
Miao Yu   +6 more
doaj   +1 more source

Convolutional discrete Fourier transform method for calculating thermal neutron cross section in liquids [PDF]

open access: yesJournal of Computational Physics, 2021
Being exact at both short- and long-time limits, the Gaussian approximation is widely used to calculate neutron incoherent inelastic scattering functions in liquids. However, to overcome a few numerical difficulties, extra physical approximations are often employed to ease the evaluation.
Rong Du, Xiao-Xiao Cai
openaire   +2 more sources

Spin-orbit conversion at the sharp focus of a circularly polarized light beam

open access: yesКомпьютерная оптика
It is known that when tightly focusing a circularly polarized optical vortex, spin-to-orbital angular momentum conversion occurs. It is usually said that the longitudinal component of the spin angular momentum (SAM) vector is transformed into the ...
V.V. Kotlyar   +4 more
doaj   +1 more source

Cross Cultural Collaboration: Opportunities and Challenges

open access: yesCosmopolitan Civil Societies: An Interdisciplinary Journal, 2009
This paper introduces the next section of this special issue, which examines the politics of cross-cultural collaboration to resist racism and war. In an era defined by a ‘War on Terror’ which has transformed both foreign policy and domestic community ...
Christina Ho
doaj   +1 more source

Evidence that no liquid equilibrium process is involved in the comb building of honey bees (Apis Mellifera) [PDF]

open access: yes, 2017
According to Pirk et al. (2004), honeybees first build free standing cylindrical cells which are then transformed to hexagonal cross-section by wax-flow in a kind of self-organization. We show that there is no self-organization of the wax.
Oeder, Robert, Schwabe, Dietrich
core   +1 more source

Mercury Intrusion Effects Modelled in Pores with Axial Symmetry and Attenuated Cross Section

open access: yesAdsorption Science & Technology, 2013
The study of Hg intrusion in axially symmetric pores modelled from a circular function, including a cross-sectional attenuation, unveils or ratifies some interesting effects.
Isaac Kornhauser   +4 more
doaj   +1 more source

Insight Into the Dynamics of the Rabinowitsch Fluid Through an Elliptic Duct: Peristalsis Analysis

open access: yesFrontiers in Physics, 2022
The current research is concerned with the mechanical characteristics of a Rabinowitsch fluid model that has been developed via an elliptic duct. If we study physiology or biomedicine, we will find that the Rabinowitsch fluid model in peristalsis is very
Sohail Nadeem   +3 more
doaj   +1 more source

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