Results 71 to 80 of about 1,217 (247)

Analysis of Speed Hump Effect on Signalized Intersection Performance

open access: yesPort-Said Engineering Research Journal, 2020
Intersections have primary importance in urban networks because most of travel time is wasted at the intersection specially signalized category. Popular solutions of intersection control need to use artificial objects such as speed hump or signals. If both solutions were used together, it causes a manifestation of the delay problem.
marwa elbany, mohamed sadek
openaire   +2 more sources

A Series of Vertical Deflections, a Promising Traffic Calming Measure: Analysis and Recommendations for Spacing

open access: yesApplied Sciences, 2020
Traffic calming measures (TCM) are placed in urban areas to improve road safety, and among them, vertical TCMs are widely employed. Many researches are focused on the influence of the geometry of each measure on speed reduction, but it is demonstrated ...
Heriberto Pérez-Acebo   +3 more
doaj   +1 more source

Multi‐Scale Structural Effects of External Electrical Fields of Melt Tracks in Laser Powder Bed Fusion

open access: yesAdvanced Science, EarlyView.
Laser material processing is a promising technique for fabricating metal structures. Here, external electric field (EFs) assisted laser processing of metallic powders are investigated. EFs affect the melt tracks through changes in their stability and influence the grain structure in conjunction with laser intensity distribution methods. The EF‐assisted
Ankit Das   +2 more
wiley   +1 more source

Transforming Grain‐Boundary Brittle Precipitates to Ductility Pathways in Complex Concentrated Alloy

open access: yesAdvanced Science, EarlyView.
By engineering graded BCC/L12 interfaces, brittle precipitates in a complex concentrated alloy enable sequential deformation, realizing gigapascal strength with >20% elongation to solve the strength‐ductility trade‐off. ABSTRACT Conventional wisdom holds that hard grain‐boundary (GB) precipitates embrittle structural alloys by acting as crack ...
Zhixin Li   +14 more
wiley   +1 more source

Built environment characteristics and driving speed in 30 km/h zones: a Dutch national analysis

open access: yesTraffic Safety Research
Road authorities are systematically expanding 30 km/h zones to enhance safety. This requires understanding how built environment characteristics are associated with driving speeds, but only a few studies, typically based on small samples, focus on 30 km/
Paul Schepers   +5 more
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Design and evaluation of a novel curved speed hump (CSH) for Indian roads

open access: yesTransportation Research Interdisciplinary Perspectives
Traffic calming measures are crucial for sustainable traffic management. Globally, vertical and horizontal techniques, such as speed humps, speed cushions, roundabouts and chicanes are used to reduce vehicle speeds and enhance road safety.
Korra Ravi Kiran   +2 more
doaj   +1 more source

Traffic Calming Measures: An Evaluation of the Effect on Driving Speed

open access: yesPromet (Zagreb), 2017
Road accidents are one of the leading causes of death in the world, particularly among young people. Excessive speed is one of the main risk factors in road traffic safety, increasing accident probability and affecting accident severity.
Audrius Vaitkus   +6 more
doaj   +1 more source

Single‐Cell Transcriptomic Atlases of Camels and Cattle Unravel Molecular Evolution of Digestive and Metabolic Systems

open access: yesAdvanced Science, EarlyView.
We generated multi‐tissue single‐cell transcriptomic atlases of camels and cattle, uncovering conserved and lineage‐specific cellular features across digestive and metabolic systems. Cross‐species comparisons revealed the evolutionary origin of the camel glandular sac and identified novel cell populations linked to physiological specialization ...
Tao Shi   +22 more
wiley   +1 more source

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