Results 41 to 50 of about 902,982 (178)

Absolute Properties of the Eclipsing Binary Star V501 Herculis [PDF]

open access: yes, 2014
V501 Her is a well detached G3 eclipsing binary star with a period of 8.597687 days for which we have determined very accurate light and radial-velocity curves by using robotic telescopes.
Fekel, Francis C.   +1 more
core   +3 more sources

Interval identification of natural effects in the presence of outcome‐related unmeasured confounding

open access: yesScandinavian Journal of Statistics, EarlyView.
Abstract With reference to a binary outcome and a binary mediator, we derive identification bounds for natural effects under a reduced set of assumptions. Specifically, no assumptions about confounding are made that involve the outcome; we only assume no unobserved exposure‐mediator confounding as well as a pair of conditions termed Partially Constant ...
Marco Doretti, Elena Stanghellini
wiley   +1 more source

Investigating the Relation Between Second Language Proficiency and Study Success Using a Causal Inference Approach

open access: yesLanguage Learning, Volume 76, Issue 1, Page 132-175, March 2026.
Abstract Prior research suggests that second language (L2) proficiency is key in students’ study progress, but this research has mainly been carried out at universities. It is thus unclear how this relation varies across different educational levels. Moreover, previous studies are often not informative about the causality of this relation, making it ...
Sybren Spit, Sible Andringa, Oisín Ryan
wiley   +1 more source

Mathematical model based on nonlinear differential equations and its control algorithm

open access: yesNonlinear Engineering
A practical examination of the traditional robotic arm (RA) in operation revealed a significant limitation in its ability to control the position of motion.
Yuan Xiaohua
doaj   +1 more source

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

open access: yesAdvanced Science, Volume 13, Issue 9, 13 February 2026.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo   +11 more
wiley   +1 more source

100 anastomoses: a two-year single-center experience with robotic-assisted micro- and supermicrosurgery for lymphatic reconstruction

open access: yesJournal of Robotic Surgery
Robotic-assisted microsurgery has gained significant attention in recent years following the introduction of two dedicated microsurgical robotic systems specifically designed for this purpose.
Donata von Reibnitz   +6 more
semanticscholar   +1 more source

Advances in Delamination Analysis and Damage Prediction: A Comprehensive Review on Polymer Composite Materials

open access: yesEngineering Reports, Volume 8, Issue 2, February 2026.
This comprehensive study advances delamination analysis in composites through innovative computational methods, experimental validation techniques, and predictive algorithms, collectively enhancing damage progression prediction and structural health monitoring for improved integrity in high‐performance applications.
Dhivya Elumalai   +4 more
wiley   +1 more source

Robot-arm-based NDE of hydrogen fuel tank using a 3D-movable HTS-SQUID gradiometer

open access: yesJournal of Physics: Conference Series, 2010
In this study, we constructed a robot-arm-based SQUID-NDE system utilizing a novel HTS-SQUID gradiometer with ramp-edge Josephson junctions for hydrogen fuel tank inspection, and developed an automatic 3D-scanning program. A cylindrical hydrogen fuel tank with a double-layer structure, in which a 3mm-thick Al liner was reinforced by a 3mm-thick carbon ...
Y Hatsukade   +3 more
openaire   +1 more source

Wireless recording of the calls of Rousettus aegyptiacus and their reproduction using electrostatic transducers [PDF]

open access: yes, 2008
Bats are capable of imaging their surroundings in great detail using echolocation. To apply similar methods to human engineering systems requires the capability to measure and recreate the signals used, and to understand the processing applied to ...
D A Waters   +13 more
core   +1 more source

Integrating Composite Materials Throughout the Military Sector: A Review

open access: yesAdvances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Composite materials have attracted considerable attention in the defense industry owing to their distinctive properties and wide‐ranging applications. This systematic review examines the current research landscape and recent advancements in the application of composite materials for defense purposes.
Mikru Birhan   +4 more
wiley   +1 more source

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