Results 111 to 120 of about 9,059,926 (288)

Where Projects Fail: Geospatial Evidence of Delays and Cancellations in Chinese Development Finance

Journal of International Development, EarlyView.
ABSTRACT Delays and cancellations can severely undermine the effectiveness of development finance. Yet, little systematic evidence exists on where and why these disruptions occur within the rapidly expanding portfolio of Chinese‐financed development projects in Africa.
Leoni Mendler‐Krakau
wiley   +1 more source

Analysis of Failures of Automatic Level Crossing Devices

Engineering Proceedings
The safety of automatic level crossing devices (ALDs) is of utmost importance due to the need to ensure safe passage through railway crossings—accidents must not be allowed.
Emiliya Dimitrova, Vasil Dimitrov, Dragomira Dimitrova   +2 more
doaj   +1 more source

Annual and Seasonal Rainfall Variability in Mozambique During the Nineteenth Century

International Journal of Climatology, EarlyView.
This paper presents the first annually and seasonally resolved reconstructions of nineteenth‐century rainfall variability for Mozambique derived from the analysis of extensive documentary evidence. It reveals spatially heterogeneous rainfall patterns with recurrent multi‐year droughts, episodic extreme wet events, and a strong coherence between ...
David J. Nash, Matthew J. Hannaford, Bárbara Direito   +2 more
wiley   +1 more source

Railway level crossing traffic safety based on economic-technical analysisand photogrammetric method

Roads and Bridges
The article characterizes railway-road level crossings in terms of safety measures and pavement types used. Cost analysis of various level crossing safety devices and pavement types was conducted in order to determine the most advantageous solutions in ...
Marcin Bilski, Anna Zuzanna Małek, Michał Kaiser   +2 more
doaj   +1 more source

Viability analysis and the importance of fine‐scale variables influencing roadkills of a toad population

The Journal of Wildlife Management, EarlyView.
Fine‐scale population variables better explain roadkill patterns in natterjack toads (Epidalea calamita) than habitat proxies, with mortality driven mainly by local abundance, reduced by roadside embankments, and decreasing as the season advanced. Despite high roadkills, population viability analyses indicate no immediate extinction risk under current ...
A. Iglesias‐Donoso, G. Fandos, C. Caballero‐Díaz, R. Megía‐Palma, R. Barrientos   +4 more
wiley   +1 more source

An Elasto–Plastic Hydro–Mechanical Model for Analyzing the Swelling Behavior of Heterogeneous Clay–Sulfate Rocks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Swelling of clay‐sulfate rocks is a concern in geotechnical engineering that can damage infrastructure. In the historic town of Staufen in southwest Germany, geothermal drilling into a swellable anhydrite‐bearing clay formation resulted in water inflow and subsequent swelling, triggering ground heave and damage to more than 250 houses.
Reza Mahmoudi Kouhi, Reza Taherdangkoo, Thomas Nagel, Faramarz Doulati Ardejani, Christoph Butscher   +4 more
wiley   +1 more source

A Case Study to Monitor Parallel‐Connected Ni–Cd Batteries on EMU Trains Through Compositional Data Control Charts

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Electric multiple unit (EMU) trains, widely used in modern railway transportation, use Nickel–Cadmium (Ni–Cd) batteries to power auxiliary systems on board, including lighting, ventilation, control electronics, and emergency systems. These batteries are often connected in parallel to ensure a wider power supply range for electrical loads that ...
Christian Capezza, Guido Cesaro, Antonio Lepore, Biagio Palumbo, Emanuele Rossi   +4 more
wiley   +1 more source

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Experimental tests of vehicle body accelerations at selected road and rail crossings

MATEC Web of Conferences, 2019
Vehicles moving across the railway are exposed to the dynamic reaction of unevenness of surface on those level crossing. This significantly influences on the increase of the acceleration as well as forces values transferred to the body of the car.
Waluś Konrad J., Polasik Jakub, Mielniczuk Janusz, Warguła Łukasz   +3 more
doaj   +1 more source

Leveraging the Potential of Public Food Procurement to Achieve Multiple Food System Outcomes: Insights From a Policy Analysis in Australia

Sustainable Development, EarlyView.
ABSTRACT Government food procurement investment offers significant potential to advance health and sustainability goals; yet, integrating these dimensions into policy design has proved challenging. We mapped and analysed 38 food procurement and catering‐specific policies in Australia to identify ways to strengthen policy design: 20 governing ...
Carolina Venegas Hargous, Anne Marie Thow, Belinda Reeve, Erica Reeve   +3 more
wiley   +1 more source