Results 1 to 10 of about 2,008,262 (166)

The One-Way Linear Effect, a first order optical effect [PDF]

open access: yesHeliyon, 2023
In the One-Way Linear Effect, the round-trip time interval T0′ taken by light to propagate around a moving linear closed contour, is measured by a device. If the contour changes velocity by Δv, the round-trip interval T′(X′,Δv) turns out to depend on the
Gianfranco Spavieri, Espen Gaarder Haug
doaj   +2 more sources

Spiral instabilities: linear and non-linear effects [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We present a study of the spiral responses in a stable disc galaxy model to co-orbiting perturbing masses that are evenly spaced around rings. The amplitudes of the responses, or wakes, are proportional to the masses of the perturbations, and we find that the response to a low-mass ring disperses when it is removed – behaviour ...
Sellwood, J. A., Carlberg, R. G.
openaire   +2 more sources

On π-electron conjugation in the five-membered ring of fluoranthene-type benzenoid hydrocarbons [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
A fluoranthene-type benzenoid hydrocarbon (FTBH) is a polycyclic conjugated system obtained by joining two ordinary benzenoid hydrocarbons so as to form a five-membered ring.
Gutman Ivan, Đurđević Jelena
doaj   +1 more source

Modeling fuel consumption in various external vehicle conditions for military vehicle using mixed linear models

open access: yesInternational Journal of Applied Mathematics, Sciences, and Technology for National Defense, 2023
With the crisis in fuel consumption, it is necessary to save fuel consumption by selecting fuel that is quite efficient. The aim of the research is to examine the fuel consumption patterns of vehicles in an area that experiences various weathers so as to
Muhammad Nuraliffudin Saputra   +5 more
doaj   +1 more source

Energy Price and Energy Efficiency in China: A Linear and Nonlinear Empirical Investigation

open access: yesEnergies, 2020
The empirical conclusions regarding the relationship between energy price and energy efficiency are relatively mixed. This paper systematically examines the influence of energy price on energy efficiency in China based on data from 30 provinces between ...
Peng Hou   +3 more
doaj   +1 more source

A Non-parametric Method for Calculating Conditional Stressed Value at Risk

open access: yesСтатистика и экономика, 2017
We consider the Value at Risk (VaR) of a portfolio under stressed conditions. In practice, the stressed VaR (sVaR) is commonly calculated using the data set that includes the stressed period.
Kohei Marumo
doaj   +3 more sources

SVD++ Linear Regression Recommendation Algorithm with Time Effect [PDF]

open access: yesJisuanji gongcheng, 2020
Aiming at the problem of data sparsity in traditional collaborative filtering algorithm,this paper proposes a recommended algorithm named timeSVD++ LR,which introduces the time effect attribute on the basis of the SVD++ algorithm and linear regression ...
SU Qing, ZHANG Jingfang, LI Xiaomei
doaj   +1 more source

Linear Magnetoelectric Effect by Orbital Magnetism [PDF]

open access: yesPhysical Review Letters, 2012
We use symmetry analysis and first principles calculations to show that the linear magnetoelectric effect can originate from the response of orbital magnetic moments to the polar distortions induced by an applied electric field. Using LiFePO4 as a model compound we show that spin-orbit coupling partially lifts the quenching of the 3d orbitals and ...
Scaramucci, A.   +4 more
openaire   +5 more sources

Spatial-Dependent Hamiltonian Formulation of Cross-Mode Modulation

open access: yesIEEE Photonics Journal, 2020
In the absence of random mode mixing (RMM), linearization of the cross-mode modulation (XMM) under pump-probe configuration is in general complicated because the evolution of the pump light depends on the local mode decomposition of itself. In this work,
Haofan Yang   +5 more
doaj   +1 more source

Research on the relationship between environmental regulation, technological innovation and employment: focused on China [PDF]

open access: yesJournal of International Logistics and Trade, 2023
Purpose – The purpose of this paper is to explore the relationship between formal environmental regulation (FER) and informal environmental regulation (IER), technological innovation and employment. Design/methodology/approach – This paper uses data from
Chang Li, YunSeop Hwang, Cheon Yu
doaj   +1 more source

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