بحث بسيط
السجلات المعروضة 1971 -- 1980 من 1987
Performance evaluation of the inside intersection median-turn lane markings on the mobility and safety performance of signalized intersections in the Philippines and Japan
(
Elsevier B.V.
, 2018 , Article)
Signalized intersections are one of the key elements that play a vital role at road networks. The efficiency and safety levels of intersections can affect the operational performance of the whole system. In general, turning ...
Pedestrians' Speed Analysis at Signalized Crosswalks
(
Elsevier B.V.
, 2018 , Conference Paper)
Pedestrian speed is essential for designing signal timings as well as for understanding pedestrian safety issues. This paper presents analysis of three types of pedestrian speeds (entry speed, crossing speed, and exit ...
The Urban Regeneration of West-Bay, Business District of Doha (State of Qatar): A Transit Oriented Development Enhancing Livability
(
Elsevier
, 2018 , Article)
Doha, the capital of the State of Qatar, has faced enormous economic growth and rapid urban
transformation over the last few decades. More recently, this has been accentuated by the construction
of major urban public ...
Effectiveness of Different Topical Treatments in the Healing of Pressure Injuries: A Network Meta-analysis.
(
Elsevier
, 2018 , Article)
Pressure injuries (PIs) are one of the most common types of complex wounds and impose a huge economic burden on the healthcare system and the patients. A plethora of topical treatments is widely available for PI treatment, ...
Bentonite-decorated calix [4] arene: A new, promising hybrid material for heavy-metal removal
(
Elsevier
, 2018 , Article)
There is global concern about the contamination of ground, river, and tap waters as well as soil contamination with heavy metal ions; these chemical species are known to not degrade and to cause severe health problems if ...
Generation of photo charge in poly(ethyleneimine)-TiO2-anthocyanin modified papers conditioned at different humidities.
(
Elsevier
, 2018 , Article)
The article describes the influence of humidity on the surface photodielectric properties of papers prepared from poly(ethyleneimine)-TiO2 nanoparticles-anthocyanin modified cellulose fibres. The anthocyanins were extracted ...
Shear wave propagation in layered composites with degraded matrices at locations of imperfect bonding.
(
Elsevier
, 2018 , Article)
Biodegradable polymers find an increasing number of applications in different fields of engineering and medicine due to their environmental-friendly degradation. The process of degradation of biodegradable polymer constituents ...
Influence of bimetallic nanoparticles composition and synthesis temperature on the electrocatalytic activity of NiMn-incorporated carbon nanofibers toward urea oxidation
(
Elsevier
, 2018 , Article)
High efficiency, cost effectivity and the availability of hydrogen are the advantages of
electrolysis as a strategy for urea-containing wastewater treatment. Composition,
morphology, and synthesis-temperature distinctly ...
Emerging clay-aryl-gold nanohybrids for efficient electrocatalytic proton reduction
(
Elsevier
, 2018 , Article)
There is an ever growing demand for renewable sources of energy to replace conventional fossil fuels. One of the alternatives is usage of hydrogen production by electrochemical hydrogen evolution reaction (HER). Toward ...
Decline in oyster populations in traditional fishing grounds; is habitat damage by static fishing gear a contributory factor in ecosystem degradation?
(
Elsevier
, 2018 , Article)
The territorial waters of Qatar once supported dense assemblages of the pearl oyster Pinctada radiata. The oysters settled on a patchy network of limestone platforms (hairãt) and provided a suite of ecosystem services to ...