Results 61 to 70 of about 339,893 (364)

When the River Runs Low: Heterogeneous Impacts of Transportation Disruptions on Local Grain Basis

open access: yesAgribusiness, EarlyView.
ABSTRACT A substantial share of U.S. soybean and corn exports from the Midwest moves by barge along the Mississippi River system to export terminals in the Louisiana Gulf. Transportation costs between Midwestern grain elevators and export terminals create a wedge between prices at these locations, and shocks to these costs are partially passed on to ...
Yuan Zhang   +3 more
wiley   +1 more source

Fatigue life evaluation of aged rails focusing on the state of hanging sleepers and rail-head surface irregularities that affect rail stress

open access: yesNihon Kikai Gakkai ronbunshu
In this study, we focused on hanging sleepers and rail-head surface irregularities, which are considered to affect the fatigue life of aged rails, and statistically analyzed their occurrence on commercial lines.
Mitsuru HOSODA   +2 more
doaj   +1 more source

Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network

open access: yesAdvanced Intelligent Discovery, EarlyView.
A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia   +3 more
wiley   +1 more source

SELECTED LEGAL CONDITIONS VALID BY TRANSPORT OF DANGEROUS GOODS BY RAIL IN EUROPEAN UNION [PDF]

open access: yesActa Tecnología, 2017
The purpose of transport of dangerous by rail is to harmonise the rules applicable to the national and intra-community transport of dangerous goods by rail.
Lucia Knapčíková, Michal Balog
doaj   +1 more source

Prediction‐Guided Two‐Step Solid‐State Exploration of Unknown Pseudo‐Ternary Oxides

open access: yesAdvanced Intelligent Discovery, EarlyView.
Prediction‐guided selection combined with two‐step solid‐state exploration enables efficient search of unknown pseudo‐ternary oxides. Broad robotic slurry screening followed by manual single‐phase isolation leads to the discovery of a new oxide, Ba5SnV6O22, showing how data‐guided experiments connect unexplored composition regions to new materials ...
Hiroyuki Hayashi
wiley   +1 more source

Issues of cooperation of wheel and rail in modern railways

open access: yesPojazdy Szynowe, 2020
The article presents the issues related to the interaction of the wheel and rail in modern rail vehicles. This interdisciplinary issue is becoming more and more important due to the progression of loads resulting from the constantly increasing pressure ...
Marek Sobaś,
doaj   +1 more source

Implantation‐On‐Chip: An AI‐Based Platform for Monitoring the Embryo Trophoblast–Endometrial Stroma Cross Talk With Xenobiotics Interference

open access: yesAdvanced Intelligent Systems, EarlyView.
We present a novel AI‐integrated implantation‐on‐chip platform that enables mimicking and monitoring the maternal–fetal interactions at the early phases of human embryo implantation with high spatiotemporal resolution. The complexity of the trophoblast invasion process was addressed by conducting the analysis at global (rate of invasion) and local ...
Joanna Filippi   +12 more
wiley   +1 more source

Resource‐Aware Contrastive Scattering Meta‐Learning for Efficient Few‐Shot Acoustic Anomaly Detection

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper introduces a resource‐aware Contrastive Scattering Meta‐Learning (CSML) framework for acoustic anomaly detection. By leveraging training‐free wavelet scattering and metric‐based meta‐learning, the model achieves competitive performance with only 50 K learnable parameters—a 98% reduction compared to state‐of‐the‐art frameworks—enabling ...
Rami Zewail, Bassem Mokhtar
wiley   +1 more source

RESIDUAL RESOURCE STUDY OF DEFECTIVE RAILS FOR TYPE P 50 CYCLE TEST OF ENDURANCE

open access: yesNauka ta progres transportu, 2015
Purpose. The paper is devoted to the study and evaluation of residual life for defective rails P50 operated on the roads of the Kyiv subway, which are taken out of service because of defects 11.1-2 on the side of the rolling surface of the rail head ...
R. M. Yosyfovych
doaj   +1 more source

China's High-Speed Rail Development

open access: yes, 2019
Over the past decade, China has built 25,000 km of dedicated high-speed railway—more than the rest of the world combined. What can we learn from this remarkable experience?
M. Lawrence, R. Bullock, Ziming Liu
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy