Results 81 to 90 of about 11,872 (296)

Prevalence of illegal speed humps on Ghana’s rural highways and their implication for road safety: a case study of selected trunk roads in Ghana

open access: yesDiscover Civil Engineering
In Ghana, unauthorized speed humps are increasingly appearing on many main roads that run through rural communities, highlighting the residents’ concerns about the dangers of speeding traffic.
Kwadwo Appiah Boateng   +4 more
doaj   +1 more source

The Fish Funnel: A Trawl Modification to Reduce Fish Escapement [PDF]

open access: yes, 1989
In the Gulf of Mexico there is a need to assess the potential of underutilized fish resource stocks before a commercial fishery develops. Standard sampling trawls used in the Gulf are ineffective for sampling the resource, so larger, high opening, bottom
Taylor, Charles W., Workman, Ian K.
core  

Optimum design of speed control humps for vehicles.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1988
This paper deals with optimum design problems of humps for controlling vehicle speeds. Optimum humps are obtained for a segment of a circle in section using a method with a SUMT optimizing a hump for a vehicle. The objective of the design is to minimize the maximum acceleration of the driver occurring during a vehicle crossing a hump at a design speed ...
Ken'ichi MAEMORI, Katsuo SAKAMOTO
openaire   +2 more sources

The Effect of Speed Humps on Highways Pavement Condition [PDF]

open access: yesInternational Journal of Engineering, 2020
Speed humps used as a tool of traffic calming technique that applied to force drivers to reduce their vehicle’ speeds at some locations. For developed countries, the implementations of speed humps are often used within residential areas as well as at locations of schools crossing.  For developing countries (e.g.
openaire   +1 more source

Evaluation of speed humps on pedestrian injuries in Ghana [PDF]

open access: yesInjury Prevention, 2010
Objective To evaluate the effectiveness of speed humps in reducing pedestrian crashes at selected settlements located along the Konongo-Kumasi highway. Materials and Methods The study adopted before and after comparison of police reported casualty ...
F K Afukaar, J Damsere-Derry
openaire   +1 more source

Fully Printed Organic Electrochemical Transistors With Low‐Resistance Electrodes on Planarized 3D‐Printed Substrates

open access: yesAdvanced Materials Technologies, EarlyView.
This paper explores integrating organic electrochemical transistors (OECTs) with planarized 3D‐printed substrates, utilizing ironing to enhance surface suitability for printing, dispense printing for thick, low‐resistance silver electrodes, and inkjet printing for semiconductor deposition.
Mohamad Kannan Idris   +3 more
wiley   +1 more source

A METHOD OF COMPLEX CALCULATION OF RATIONAL STRUCTURAL PARAMETERS OF RAILWAY HUMPS

open access: yesActa Polytechnica, 2018
The article deals with a method of complex calculation of rational structural parameters of humps at classification yards. Unlike existing methods, this method allows an implementation of the technology of guided gravity regulation of the cut speed by ...
Sergii Panchenko   +3 more
doaj   +1 more source

Wave Propagation in a Strongly Nonlinear Locally Resonant Granular Crystal

open access: yes, 2017
In this work, we study the wave propagation in a recently proposed acoustic structure, the locally resonant granular crystal. This structure is composed of a one-dimensional granular crystal of hollow spherical particles in contact, containing linear ...
Kevrekidis, P. G.   +3 more
core   +1 more source

Sharp Diamond Needles for Single‐Photon Emission

open access: yesAdvanced Photonics Research, EarlyView.
We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie   +9 more
wiley   +1 more source

Evaluating cumulative ascent: Mountain biking meets Mandelbrot

open access: yes, 2011
The problem of determining total distance ascended during a mountain bike trip is addressed. Altitude measurements are obtained from GPS receivers utilizing both GPS-based and barometric altitude data, with data averaging used to reduce fluctuations. The
D. C. RAPAPORT, Mandelbrot B. B.
core   +1 more source

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