Results 111 to 120 of about 59,683 (297)

Review of Catenary Icing on High‐Speed Railways: Characteristics, Impact and Countermeasures

open access: yesHigh Voltage, EarlyView.
ABSTRACT The pantograph–catenary system (PCS) is the only path for electrified railway trains to acquire energy. Catenary icing during winter is a common natural phenomenon, which usually leads to the deterioration of the current quality and severely affects the operational safety of trains.
Zheng Li   +7 more
wiley   +1 more source

Deterministic multi-zone ice accretion modeling [PDF]

open access: yes
The focus here is on a deterministic model of the surface roughness transition behavior of glaze ice. The initial smooth/rough transition location, bead formation, and the propagation of the transition location are analyzed.
Hansman, R. John, Jr.   +2 more
core   +1 more source

Seleção de esmaltes cerâmicos utilizando um delineamento experimental segundo Taguchi Ceramic glaze obtaining and selection applying Taguchi experimental design

open access: yesCerâmica, 2004
Para a obtenção de esmaltes com características adequadas a sua aplicação, é necessário definir, além da composição da frita base, a formulação da suspensão de esmalte e as condições de aplicação e queima.
C. Lira, O. E. Alarcon
doaj   +1 more source

Effect of Toothbrushing On Shade and Surface Roughness of Extrinsically Stained Pressable Ceramics [PDF]

open access: yes, 2016
Statement of problem The effect of toothbrushing on extrinsically stained pressable ceramic materials is unknown. Purpose The purpose of this in vitro study was to investigate the effects of toothbrushing on the shade and surface roughness of ...
Berzins, David W.   +3 more
core   +1 more source

Season and human footprint weaken the negative effect of temperature on the intraspecific metabolic scaling exponent of wild brown trout populations

open access: yesJournal of Animal Ecology, EarlyView.
We apply a new parameterized model through linking metabolic scaling and the maximum entropy theory of ecology to quantify the intraspecific metabolic scaling exponent of brown trout populations and assess the main drivers shaping the exponent. Abstract Metabolic scaling fundamentally sets the pace of life in almost all organisms.
Meng Xu, Ignasi Arranz
wiley   +1 more source

Opportunities for the Labour Party: Football, Class and Community Renewal

open access: yesThe Political Quarterly, EarlyView.
Abstract This article argues that football represents an underutilised opportunity for the Labour Party to anchor a wider programme of civic renewal. In many working‐class communities, the decline of trade unions, working men's clubs and other associational spaces has eroded collective life, leaving football clubs as rare institutions where dignity ...
Sam Taylor Hill
wiley   +1 more source

TROPICAL FRENCH THEORY: Henri Lefebvre and the Reinvention of Urban Planning in Havana, Cuba (1968–1971)

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Contributing to global urban history, planning theory and the geography of ideas, this article discusses the travels of Henri Lefebvre’s The Right to the City in the wake of May 1968, in France. That year, under the direction of Mario González and Max Baquero, a small team including the Italian architect Vittorio Garatti, French planner Jean ...
William Kutz
wiley   +1 more source

Transcriptomics Unveil Dsx1 as a Critical Regulator in Sexual Dimorphism of Crustaceans

open access: yesIntegrative Zoology, EarlyView.
Sexually dimorphic traits are involved in reproductive competition and are shaped by sex‐biased gene expression. This study identifies Dsx1 as a key male‐biased gene in Morinoia aosen and demonstrates through RNA interference that its disruption feminizes male‐specific T3 leg structures.
Yan Tong   +8 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

open access: yesArabian 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   +11 more
wiley   +1 more source

Between the Indian Ocean and the Gulf: Ceramics From Ḥattā Oasis in the Emirate of Dubai

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT This study presents the ceramic finds from archaeological investigations conducted in 2024 at two settlements: ‘Islamic Village' and Suhaila 2, one of a number of mountain villages of the Late Islamic period within the Ḥattā Oasis: a high‐altitude exclave in the Emirate of Dubai. The sites are located on the northeastern slopes of Jabal Qallāt
Seth M. N. Priestman   +3 more
wiley   +1 more source

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