Results 91 to 100 of about 99,906 (242)
A Monte Carlo approach to competition strategy [PDF]
, 1979 Variables taken into account in glider flight strategy decisions are modeled. These include height of clouds, distance between thermals, time of day, water ballast, present altitude, weather changes, lift organization, and distance to goal, as well as ...
Teter, M. P.
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Dynanics of a vehicle-track coupling system at a rail joint [PDF]
, 2015 The dynamic behaviour at a rail joint is examined using a two-dimensional vehicle–track coupling model. The track system is described as a finite-length beam resting on a double-layer discrete viscous-elastic foundation.
Cencen Gong +5 more
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Hybrid DEM-FDM Modelling of Ballasted Railway Track Performance
InfrastructuresThe performance of ballasted railway tracks under cyclic loading is a critical issue in urban railway systems, where high traffic frequency and geometric constraints accelerate track degradation, leading to the accumulation of plastic deformations that ...
Nohemí Olivera, Juan Manuel Mayoral
doaj +1 more source
Journal of Field Robotics, Volume 43, Issue 3, Page 1861-1870, May 2026.ABSTRACT Collaborative operation of multiple autonomous underwater vehicles (AUVs) can effectively achieve scientific goals that are hard to achieve by independently operated vehicles. Some science payloads are large, expensive, and need to be installed in the vehicle's nose cone. A vehicle can only carry one such payload.
Yanwu Zhang +9 more
wiley +1 more source
BALLAST ELEKTRONIK LAMPU JENIS HIGH PRESSURE SODIUM (HPS) BERTOPOLOGI INVERTER SETENGAH JEMBATAN RESONAN SERI FREKUENSI TINGGI DENGAN MIKROKONTROLER ATMEGA8535 [PDF]
, 2011 Lampu sodium bertekanan tinggi termasuk dalam kelas lampu discharge tekanan tinggi yang efisien dalam pencahayaan dan banyak digunakan untuk penerangan di luar ruangan seperti penerangan jalan.
KARNOTO, Karnoto +2 more
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Research on large-scale triaxial tests of TDA-modified ballast with different shapes
Yantu gongcheng xuebaoBallast mixed with tire-derived aggregate (TDA) is a novel method for improving the track bed, which has advantages of promoting performance of ballasted track infrastructure and enhancing the utilization rate of solid waste.
CHANG Jianmei 1, CHEN Gaoming 1, WANG Ai 1, FENG Huaiping 1, CUI Ying 2
doaj +1 more source
Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1519-1534, May 2026.Abstract Optimal allocation of resources to the management of biosecurity risk, threatened species conservation or natural hazards such as bushfires is imperative—because program budgets are usually finite and, therefore, constrained. However, effectively dividing resources among management activities to achieve the greatest benefit remains a ...
Aaron Dodd, Edith Arndt, Anca Hanea
wiley +1 more source
Introduced Species in United States Coastal Waters [PDF]
, 2001 This pdf document commissioned by the Pew Ocean Commission describes the problem of invasive species along the United States coastline. The document provides information regarding how bioinvasions occur, the number of invasive species introduced, the ...
James Carlton
core
Chengshi guidao jiaotong yanjiu[Objective] When high-speed trains operate on ballasted tracks, the complex airflow field around ballast particles can lead to track ballast splashing. The formation mechanism of this phenomenon remains unclear.
WANG Jiankai +3 more
doaj +1 more source
Stress–Dilatancy For Crushed Latite Basalt
Studia Geotechnica et Mechanica, 2018 In this article, the stress–dilatancy relationship for crushed latite basalt is analysed by using Frictional State Theory. The relationship is bilinear, and the parameters α and β determine these two straight lines.
Dołżyk-Szypcio Katarzyna
doaj +1 more source