Results 41 to 50 of about 50,207 (144)

The Passenger Car Equivalent Factors for Heavy Vehicles on Turbo Roundabouts

Frontiers in Built Environment, 2019
The presence of heavy and slower vehicles within the traffic stream significantly reduces traffic capacity. This reduction increases with the higher participation of heavy vehicles in the stream, which, compared to passenger cars, move at a lower speed ...
Elżbieta Macioszek
doaj   +1 more source

Performance Assessment of Turbo-roundabouts in Corridors

Transportation Research Procedia, 2015
AbstractThere is a widespread agreement in the scientific community that the transformation of a conventional multi-lane roundabout into a turbo-roundabout results in a significant increase of road safety levels. However there is no consensus regarding its effect in terms of capacity, as there are some authors that point towards a small reduction in ...
Silva, Ana Bastos, Mariano, Pedro, Silva, João Pedro   +2 more
openaire   +2 more sources

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Methodological frontier in operational analysis for roundabouts: a review

Frontiers in Built Environment, 2016
Several studies and researches have shown that modern roundabouts are safe and effective as engineering countermeasures for traffic calming, and they are now widely used worldwide.
Orazio Giuffre', Anna Grana, Maria Luisa Tumminello   +2 more
doaj   +1 more source

Indium‐Free Silicon Heterojunction Solar Cells: Achieving High Conductivity With Magnetron‐Sputtered SnO2

Progress in Photovoltaics: Research and Applications, EarlyView.
Amorphous SnO2 films with low resistivity (~1.2 × 10−3 Ωcm) were realized by low‐temperature magnetron sputtering through control of O2 flow ratio, substrate temperature, and H incorporation. Si heterojunction solar cells incorporating these films achieved a conversion efficiency of 21.1%, approaching that of cells based on MS‐ITO and RPD‐SnO2 ...
Takashi Koida, Takuya Matsui, Hitoshi Sai   +2 more
wiley   +1 more source

New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”

Promet (Zagreb), 2011
Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is ...
Tomaž Tollazzi, Marko Renčelj, Sašo Turnšek   +2 more
doaj   +1 more source

EE2 and the Fish Brain: Age‐Dependent Impact of 17α‐Ethinylestradiol on Brain Cell Proliferation and Behavior in Sea Bass Larvae

Environmental Toxicology, EarlyView.
ABSTRACT Endocrine‐disrupting chemicals (EDCs), such as 17α‐ethinylestradiol (EE2), have raised concerns about their potential effects on aquatic organisms, particularly during early developmental stages. In this context, the study of behavioral disruption has gained considerable attention, as it may have consequences on individual fitness and ...
Soloperto Sofia, Stephanie Olivier, Céline Thomasse, Christophe Minier, Marie‐Pierre Halm‐Lemeille, Christelle Jozet‐Alves, Salima Aroua   +6 more
wiley   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Hydromulches in Organic Strawberry Production: Effects on Densities of Insect Pests and Natural Enemies

Journal of Applied Entomology, EarlyView.
ABSTRACT Liquid‐sprayable cellulose hydromulches (HM) are alternatives to plastic polyethylene (PE) mulches for weed suppression in organic agriculture. However, their impact on arthropod pests and natural enemies remains unexplored. Various HMs made of shredded newsprint, water and guar gum were compared against white‐on‐black PE mulch, paper sheet ...
Andres Torres‐Moya, Deirdre A. Prischmann‐Voldseth, Greta Gramig   +2 more
wiley   +1 more source

An analysis of turbo roundabouts from the perspective of sustainability of road transportation [PDF]

, 2021
The designs of turbo roundabouts vary among countries and undesirable and potentially dangerous situations can occur for vehicles passing through the roundabout.
Jan Petru, Vladislav Krivda, Křivda, Vladislav, Petrů, Jan   +3 more
core   +1 more source