Results 51 to 60 of about 43,353 (264)

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes, Amanda M. Countryman, Dustin L. Pendell   +2 more
wiley   +1 more source

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

Agribusiness, 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, Andrew E. Anderson, Nicholas J. Pates, Eunchun Park   +3 more
wiley   +1 more source

Testing the Functionality and Performance of a Rail Damper

Romanian Journal of Transport Infrastructure, 2018
The rail dampers are mechanical devices which work as dynamic absorbers to reduce the rail vibration and rolling noise. The paper shows the experimental results from the functionality and performance testing of an experimental demonstrative rail damper ...
Mazilu Traian, Răcănel Ionuţ Radu, Stoicescu George   +2 more
doaj   +1 more source

Design of rail-based emergency communication system

Gong-kuang zidonghua, 2015
In view of problem of communication interruption and contact lost after coal mine and tunnel under construction collapsed, rail-based emergency communication system was designed.
GUO Yong, LIN Ruoxia, LIU Xiaohong, XIANG Yuling   +3 more
doaj   +1 more source

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

Advanced 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, Miguel Gomez, Steve Blair, Berardi Sensale‐Rodriguez   +3 more
wiley   +1 more source

VAE+DDPG: An Attention‐Enhanced Variational Autoencoder for Deep Reinforcement Learning‐Based Autonomous Navigation in Low‐Light Environments

Advanced Intelligent Systems, EarlyView.
Variational Autoencoder+Deep Deterministic Policy Gradient addresses low‐light failures of infrared depth sensing for indoor robot navigation. Stage 1 pretrains an attention‐enhanced Variational Autoencoder (Convolutional Block Attention Module+Feature Pyramid Network) to map dark depth frames to a well‐lit reconstruction, yielding a 128‐D latent code ...
Uiseok Lee, Chanhong Hwang, Hyunseok Kang, Yechan Park, Hangwoo Jin, Tuan Anh Nguyen, Eunmi Choi, Dugki Min   +7 more
wiley   +1 more source

Railway noise reduction by the application of CHFC material on the rail [PDF]

Transport Problems, 2015
Traffic is the most widespread source of environmental noise. Railway noise has become increasingly common in urban areas in the past few decades. Therefore environmental requirements for railway operations regarding noise are becoming very strict and ...
Brigita ALTENBAHER, Darja GOLTNIK, Bojan ROSI   +2 more
doaj  

Personnel Policy Court of Justice of the Kazan during the First World War (1914-1917)

Управленческое консультирование, 2018
The article discusses the features of the personnel policy of the Kazan Trial Chamber during the First World War. The main problems identified in the article - the question of employment evacuated ranks judiciary.
Rail Rashitovich Shaydullin
doaj   +1 more source

Electrohydrodynamic Fiber Pump With Dual‐Flow Channels

Advanced Intelligent Systems, EarlyView.
A dual‐channel electrohydrodynamic (EHD) fiber pump is introduced, which enables fluid flow inside and outside fully exposed helical electrodes. The dual‐channel design significantly enhances flow rate, pressure, and efficiency compared with the conventional design.
Yuya Shibahara, Rudrajyoti Das, Naoki Ogawa, Hideko Akai, Jun Shintake   +4 more
wiley   +1 more source

The structure and factors of academic adjustment of foreign students in Russian universities [PDF]

Известия Саратовского университета. Новая серия: Серия Философия. Психология. Педагогика
Introduction. Academic adaptation of foreign students in terms of academic mobility is the basis of academic achievements and is associated with psychological well-being, which serves as a condition for a positive attitude towards the host country ...
Shamionov, Rail Munirovich
doaj   +1 more source