Results 31 to 40 of about 11,619 (194)

Misalignment & Co.: (Pseudo-)scalar and vector dark matter with curvature couplings

, 2020
Motivated by their potential role as dark matter, we study the cosmological evolution of light scalar and vector fields non-minimally coupled to gravity.
Hugle, Thomas, Jaeckel, Joerg, Álvarez, Gonzalo Alonso   +2 more
core   +1 more source

THE IMPACT OF COMPETITIVENESS ON TRADE EFFICIENCY: THE ASIAN EXPERIENCE BY USING THE STOCHASTIC FRONTIER GRAVITY MODEL

Eurasian Journal of Economics and Finance, 2017
The purpose of this study is to examine the bilateral machinery and transport equipment trade efficiency of selected fourteen Asian countries by applying stochastic frontier gravity model. These selected countries have the top machinery and transport equipment trade (both export and import) volumes in Asia.
UTKULU, UTKU, BİLİK, MUSTAFA, DEMİR, MEMDUH ALPER   +2 more
openaire   +3 more sources

The Impacts of Trade Facilitation Provisions on Fresh Agricultural Products Trade between China and the BRI Countries

Agriculture, 2023
Trade facilitation is essential to lowering overall trade costs and increasing economic returns on both the multilateral and regional levels. Trade facilitation is also an integral part of trade agreements and has become an important component of the ...
Jiangyuan Fu, Linyi Chen, Huidan Xue
doaj   +1 more source

Search for astro-gravity correlations [PDF]

, 1999
A new approach in the gravitational wave experiment is considered. In addition to the old method of searching for coincident reactions of two separated gravitational antennae it was proposed to seek perturbations of the gravitational detector noise ...
A. Abramovici, A. F. Zakharov, A. N. Ramaprakash, A. V. Gusev, A. V. Gusev, A. V. Gusev, B. M. Belli, B. Paczyński, B. V. Komberg, C. Dikson, C. W. Helstrom, D. K. Nadyozhin, E. Alexeyev, E. Amaldi, E. K. Kuchik, E. N. Alekseev, G. J. Fishman, G. Pizzella, G. S. Bisnovatyi-Kogan, H. Bethe, H. Cramer, H. L. Van, I. G. Mitrofanov, J. Amati, J. Weber, J. Weber, K. S. Hirata, K. S. Thorn, M. Aglietta, M. Aglietta, M. Aglietta, M. Aglietta, M. P. Vinogradov, M. Takita, M. V. Sazhin, P. Astone, P. Astone, P. Astone, P. Astone, R. Bowers, R. M. Bionta, R. Wijers, S. R. Kulkarni, T. J. Galama, V. Dadykin, V. I. Tikhonov, V. K. Kravchuk, V. K. Kravchuk, V. M. Lipunov, V. M. Lipunov, V. N. Rudenko, V. N. Rudenko, V. S. Imshennik   +52 more
core   +2 more sources

Classifying the unknown: discovering novel gravitational-wave detector glitches using similarity learning [PDF]

, 2019
The observation of gravitational waves from compact binary coalescences by LIGO and Virgo has begun a new era in astronomy. A critical challenge in making detections is determining whether loud transient features in the data are caused by gravitational ...
Allen, S, Areeda, J, Bahaadini, S, Berry, C P L, Coughlin, M W, Coughlin, S B, Crowston, K, Harandi, M, Jackson, C, Kalogera, V, Katsaggelos, A K, Lundgren, A, Noroozi, V, Osterlund, C, Patane, O, Rohani, N, Ruiz, P, Smith, J R, Trouille, L, Zevin, M   +19 more
core   +3 more sources

Digital Economy, China International Trade Potential, Industries of BRI countries: Evidence from Stochastic Frontier Gravity Model

Frontiers in Business, Economics and Management, 2023
The article investigates the impact of digital trade on China’s trade efficiency, trade potential, and the possible influence factors of China to BRI nations under stochastic frontier gravity methodology framework. In this article, it follows previous studies and employ stochastic frontier gravity model to explore possible influence of digital trade ...
openaire   +1 more source

Analysis of Energy Consumption, Economic Efficiency and Carbon Emissions of Ice Slurry Direct Supply System: A Case Study of China

Energy Science &Engineering, EarlyView.
ABSTRACT Traditional air conditioners suffer from low energy efficiency and exacerbate grid peak loads. While ice storage offers energy‐saving potential, the systematic regulation of ice packing fraction (IPF) on cooling consumption and its synergy with dynamic carbon emissions remains unexplored.
Di Yang, Wenpeng Hong, Xu Jin
wiley   +1 more source

Joint Estimation and Bandwidth Selection in Partially Parametric Models

Journal of Applied Econometrics, EarlyView.
ABSTRACT We propose a single‐step approach to estimating a model with both a known nonlinear parametric component and an unknown nonparametric component. We study the large sample behavior of a simultaneous optimization routine that estimates both the parameter vector of the parametric component and the bandwidth vector used to smooth the unknown ...
Daniel J. Henderson, Nadine McCloud, Christopher F. Parmeter   +2 more
wiley   +1 more source

Harmonic Measure and Winding of Conformally Invariant Curves

, 2002
The exact joint multifractal distribution for the scaling and winding of the electrostatic potential lines near any conformally invariant scaling curve is derived in two dimensions. Its spectrum f(alpha,lambda) gives the Hausdorff dimension of the points
A. Beurling, A. A. Belavin, B. Duplantier, B. Duplantier, B. Duplantier, B. Nienhuis, B. B. Mandelbrot, Bertrand Duplantier, G. F. Lawler, G. F. Lawler, G. F. Lawler, Ilia A. Binder, J. L. Cardy, J. L. Cardy, O. Schramm, V. G. Knizhnik   +15 more
core   +1 more source

Multi‐objective maritime vessel routing with safety considerations

International Transactions in Operational Research, EarlyView.
Abstract The routing of maritime vessels is a challenging optimization problem that involves finding an adequate balance between conflicting and multiple objectives. This paper proposes a methodology based on inverse optimization to find appropriate objective weights that account for conflicting objectives. To formulate the inverse optimization problem,
Nazanin Sharif, Mikael Rönnqvist, Jean‐François Cordeau, Jean‐François Audy, Gurjeet Warya   +4 more
wiley   +1 more source