Results 71 to 80 of about 8,305,018 (234)

Measurement of the differential cross-section of B+ meson production in pp collisions at root s=7 TeV at ATLAS [PDF]

open access: yes, 2013
The production cross-section of B+ mesons is measured as a function of transverse momentum p T and rapidity y in proton-proton collisions at centre-of-mass energy root s = 7 TeV, using 2.4 fb(-1) of data recorded with the ATLAS detector at the Large ...
Kluit, P   +999 more
core   +5 more sources

Effects of fan speed on the integrated intake-fan-nozzle flow field of a hybrid flying-wing aircraft

open access: yesKongqi donglixue xuebao
Hybrid-powered aircraft that use electric-driven propellers/fans as propulsion devices have advantages such as low pollution, low thermal signals, and low noise, and are an important direction for the future development of the aviation field.
Zhilong ZHONG   +4 more
doaj   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter   +10 more
wiley   +1 more source

Wally and the Major [picture] : cross purposes /

open access: yes, 1969
Part of the Stan Cross Archive of cartoons and drawings, 1912-1974.; Inscription: "Stan Cross 9/66"--In ink, lower right. "8939 Tue Mar 18 Cross Purposes"--In ink, right margin; "8939"--In pencil, upper right corner.; Also available in an electronic ...
Cross, Stan, 1888-1977.
core  

Crash Analysis and Energy Absorption Characteristics of S-shaped Longitudinal Members [PDF]

open access: yes, 2013
This paper presents finite element simulations of the crash behavior and the energy absorption characteristics of thin S-shaped longitudinal members with variable cross-sections made of different materials to investigate the design of optimized energy ...
Elmarakbi, Ahmed   +3 more
core   +1 more source

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

open access: yesAdvanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling   +15 more
wiley   +1 more source

INDIRECT SAMPLING in the CONTEXT of DUAL FRAME SURVEYS [PDF]

open access: yes
Under-coverage is one of the most common problems of sampling frames. To reduce the impact of coverage error on survey estimates several frames can be combined in order to achieve a complete (or nearly complete) coverage of the target population ...
Manuela Maia, Paula Vicente
core  

Mathematical Model of Drilling Mud Movement along a Shale Shaker Screen

open access: yesAdvanced Engineering Research
Introduction. When drilling oil or gas wells, rock from the bottomhole is brought to the surface by drilling mud, which is cleaned of sludge by shale shakers at the first stage.
I. Yu. Kichkar
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Stan's father Theopholis Cross [picture] /

open access: yes, 1900
Part of the Stan Cross Archive of cartoons and drawings, 1912-1974.; Inscription: "Stan's father Theopholis"--In ink, on verso.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic ...
Cross, Stan, 1888-1977.
core  

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