Results 91 to 100 of about 1,608,691 (253)

Mesoscale dynamics of cyclone Leslie (2018): A diagnostic analysis of a rare Iberian landfall

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a successful numerical simulation of cyclone Leslie (2018), using WRF‐ARW v4.5.1. Several mesoscale dynamics were identified indicative of the occurrence of sting jet and cold conveyor belt, which potentiated the record‐breaking winds in central Portugal.
Miguel M. Lima, Luana C. Santos, Albenis Pérez‐Alarcón, Pedro M. M. Soares, Ricardo M. Trigo, Rita M. Cardoso   +5 more
wiley   +1 more source

NP-completeness of the Eulerian walk problem for a multiple graph

Моделирование и анализ информационных систем
In this paper, we study undirected multiple graphs of any natural multiplicity $k>1$. There are edges of three types: ordinary edges, multiple edges and multi-edges. Each edge of the last two types is a union of $k$ linked edges, which connect 2 or $(k+1)
Alexander V. Smirnov
doaj   +1 more source

Fast Models of Hydrocarbon Migration Paths and Pressure Depletion Based on Complex Analysis Methods (CAM): Mini-Review and Verification

Fluids, 2020
A recently developed code to model hydrocarbon migration and convective time of flight makes use of complex analysis methods (CAM) paired with Eulerian particle tracking.
Ruud Weijermars, Aadi Khanal, Lihua Zuo
doaj   +1 more source

On fractionality of the path packing problem

, 2008
In this paper, we study fractional multiflows in undirected graphs. A fractional multiflow in a graph G with a node subset T, called terminals, is a collection of weighted paths with ends in T such that the total weights of paths traversing each edge ...
A Frank, A Karzanov, A Karzanov, BV Cherkassky, EA Dinic, H Hirai, H Hirai, H Ilani, L Lovãsz, LR Ford Jr, M Lomonosov, M Lomonosov, N Vanetik, Natalia Vanetik, TC Hu   +14 more
core   +1 more source

Dynamics and model representation of two contrasting extreme precipitation events in the Sahel

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Hovmöller diagrams of the two investigated extreme precipitation events in Mali are shown for (i) IMERG observations, and ICOsahedral Nonhydrostatic model (ICON) runs with parameterization of explicit convection (ii) enabled and (iii) disabled. This work highlights that the commonly perceived benefit of using explicit convection in a state‐of‐the‐art ...
Souleymane Sanogo, Marlon Maranan, Andreas H. Fink, Beth J. Woodhams, Peter Knippertz   +4 more
wiley   +1 more source

Optical Image Processing using Eulerian Amplification

International Journal of Scientific Research and Management
Recent advancements in digital photography, particularly through mobile phone cameras, microscopes, and satellite imaging, have made high-resolution image capture increasingly accessible.
Dominic Wood, Umer Sufan, Cesar Villamil, Dr Richard Wood   +3 more
semanticscholar   +1 more source

Predictability of North Pacific blocking events: Analogue‐based analysis of historical MIROC6 simulations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The predictability of western and eastern North Pacific blocking events is assessed using analogue‐based diagnostics. Eastern blocks exhibit lower predictability, characterized by faster error growth and higher mean logarithmic divergence rates. The study highlights geographical contrasts in blocking stability.
Anupama K. Xavier, Oisín Hamilton, Davide Faranda, Stéphane Vannitsem   +3 more
wiley   +1 more source

A robust numerical method for the generation and propagation of periodic finite-amplitude internal waves in natural waters using high-accuracy simulations [PDF]

Nonlinear Processes in Geophysics
The design and implementation of boundary conditions for the robust generation and simulation of periodic finite-amplitude internal waves is examined in a quasi two-layer continuous stratification using a spectral-element-method-based incompressible flow
P. Lloret, P. J. Diamessis, M. Stastna, G. N. Thomsen   +3 more
doaj   +1 more source

Advances in research on impulse hydro‐turbine technology

River, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li, Ye Zhou, Hao Zhang, Guanglei Xiao, Yanwei Li, Zhongxin Gao, Zhiyang Lu, Shangqi Li   +7 more
wiley   +1 more source

Improving Christofides' Algorithm for the s-t Path TSP [PDF]

, 2011
We present a deterministic (1+sqrt(5))/2-approximation algorithm for the s-t path TSP for an arbitrary metric. Given a symmetric metric cost on n vertices including two prespecified endpoints, the problem is to find a shortest Hamiltonian path between ...
An, Hyung-Chan, Kleinberg, Robert, Shmoys, David B.   +2 more
core