Results 61 to 70 of about 114,508 (265)

TrajectoryOptimizationandAlgorithmofSpray-paintingRobotforRuledCombinationSurfaces

open access: yes工程科学与技术, 2015
:To solve the problem of trajectory optimization and connection of painting robot for complex geometry on the free-form surfaces,based on the combined surface of ruled surfaces,a mathematical model of spray gun trajectory optimization was established ...
张鹏   +4 more
doaj  

Ruled Surfaces with Bishop vectors via Smarandache geometry

open access: yesMANAS: Journal of Engineering
The paper studies new ruled surfaces with the vectors of Bishop frame via Smarandache geometry. The fundamental forms and the corresponding curvatures are provided for each ruled surface to draw characteristics of the surfaces such as developability and ...
Kebire Hilal Ayvacı Şimşek   +2 more
doaj   +1 more source

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd   +118 more
wiley   +1 more source

Characterization of the Evolute Offset of Ruled Surfaces with B-Darboux Frame

open access: yesJournal of New Theory, 2020
In this paper, we first introduce the evolute offset of non-cylindricalruled surfaces with B-Darboux frame in Euclidean 3-space. Then some geometricproperties of this evolute offset of non-cylindrical ruled surface are studied.
Gül Ugur Kaymanli
doaj  

Development of a Disease Activity Index for the Assessment of VEXAS Syndrome (VEXAS‐DAI)

open access: yesArthritis Care &Research, EarlyView.
Objective Vacuoles, E1 enzyme, X‐linked, autoinflammatory, somatic syndrome (VEXAS) syndrome is characterized by a complex spectrum of inflammatory and hematologic manifestations. Clinical research to identify effective therapies is urgently needed but is hindered by the lack of validated outcome measures.
Kevin Byram   +25 more
wiley   +1 more source

Aggregation Operators and Ruled Surfaces

open access: yes, 2008
Aggregation operators in two variables that are ruled quadric surfaces are studied.
openaire   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Two geometric examples of „transitional“ areas in architecture

open access: yesLittera Scripta, 2011
This article analyzes the relevant geometric properties of the two „transition“ (sheating) and rotationally asymmetric surfaces with the same horizontal ring at the base, one of which is developable linear, while the other is linear undevelopable with ...
Radimír Novotný
doaj  

Geometry of generated quasi-ruled surfaces from their quasi-parallel curves according to the q-frame in R3

open access: yesFrontiers in Physics
Parallel curves have been used extensively in a variety of fields during the last decade, including architecture, computer graphics, aerospace, and medicine.
Samah Gaber   +4 more
doaj   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

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