Results 101 to 110 of about 43,894 (296)

Runway Safety Area Slope Failure

open access: yes, 2018
To increase safety at the busy Yeager Airport in Charleston, West Virginia, an engineered materials arrestor system (EMAS) designed to safely stop aircraft was installed at the end of the runway. During installation, the safety area was expanded by adding a new fill slope in the hilly terrain. In March 2015 the runway safety area collapsed. This is the
Keller, Nick, Sayre, Terry
openaire   +1 more source

Iowa Aviation System Plan, 2004-2024 [PDF]

open access: yes, 2004
The Iowa Department of Transportation (DOT), working closely with the Federal Aviation Administration (FAA), strives to ensure that Iowa’s system of public airports is positioned to meet the needs of businesses, residents, and visitors to our state ...

core  

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Flight testing Time and Energy Managed Operations (TEMO) [PDF]

open access: yes, 2016
The expected growth in air traffic combined with an increased public concern for the environment, have forced legislators to rethink the current air traffic system design.
Bussink, Frank   +3 more
core  

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long   +4 more
wiley   +1 more source

Safety of Air Transport in Relation to Pavement Condition of Runways

open access: yesTransportation Research Procedia, 2019
Abstract Even though the satisfactory condition of the airfield pavement in terms of serviceability, there are some situations, when air traffic safety is affected. There are extreme phenomena in global warming scenarios. In particular, the increase in air temperature during the summer months, due to which decreases the quality of the pavement.
Dominika Hodáková   +3 more
openaire   +1 more source

Design of a Hydroelectronic Solar‐Tracking System for Solar Panels

open access: yesEnergy Science &Engineering, EarlyView.
A prototype of a passive solar‐tracking system utilizing buoyant force based on water level was developed, and its MATLAB/Simulink model was implemented. This study is expected to encourage researchers to design solar‐tracking mechanisms using metals with different thermal expansion coefficients, air, oil, and other fluids. ABSTRACT This study presents
Ufuk Süğürtin, Türker Fedai Çavuş
wiley   +1 more source

Risk impact indicator analysis of runway excursion event

open access: yesHangkong gongcheng jinzhan
Research on the risk of runway excursion events is mostly based on accident statistics. Analysis is rarely conducted from flight data and flight operation characteristics. Therefore,based on the QAR(quick access recorder)data,the risk analysis for runway
QI Xinge, BI Sheng, ZHANG Nan, WANG Lei
doaj   +1 more source

Finalisation of the European Approach to Assess the Fire Performance of Facades—Brief Information on the Outcome of the Project

open access: yesFire and Materials, EarlyView.
ABSTRACT This research was conducted within the framework of project SI2.825082, funded by the European Commission—DG GROW. The project's objective was to finalise a European approach for assessing the fire performance of façades under medium and large fire exposure conditions.
Péter Tóth   +7 more
wiley   +1 more source

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