Results 21 to 30 of about 168,102 (265)

A Novel Nonlinear Quadrotor Attitude Regulation with Disturbances and Preassigned Convergences

open access: yesInternational Journal of Aerospace Engineering, 2022
This article develops a novel unknown system dynamic estimator-based funnel control scheme for nonlinear quadrotor attitude regulation with preassigned convergence subject to parametric uncertainties and external perturbations.
Yanping Gao   +3 more
doaj   +1 more source

Experimental and Numerical Analysis of Ultimate Carrying Capacity of a Funnel Structure with Opening under Wind Pressure

open access: yesJournal of Marine Science and Engineering, 2023
This study presents experimental and finite element investigations on the ultimate strength of the funnel structure of a large passenger ship subjected to wind pressure.
Lei Ao   +5 more
doaj   +1 more source

Numerical study of granular flow in a slit funnel with a novel structure to avoid particle clogging.

open access: yesPLoS ONE, 2023
To solve the problem of particle clogging in slit funnels and to obtain a stable discharge flow rate, we proposed a new funnel structure, namely the slit baffle funnel.
Yi Peng   +8 more
doaj   +1 more source

Parametric study on ship’s exhaust-gas behavior using computational fluid dynamics

open access: yesEngineering Applications of Computational Fluid Mechanics, 2017
The influence of design parameters related to a ship’s exhaust-gas behavior was investigated using computational fluid dynamics (CFD) for an 8,000 TEU container carrier.
Sunho Park, Jiman Yang, Shin Hyung Rhee
doaj   +1 more source

The effect of pitfall trap construction and preservative on catch size, species richness and species composition of ground beetles (Coleoptera: Carabidae)

open access: yesEuropean Journal of Entomology, 2012
Pitfall trapping is the most frequently used sampling technique for epigeal arthropods. Trap design could significantly affect the catch so the results of studies using different trap designs may be difficult to compare.
Michal KNAPP, Jan RŮŽIČKA
doaj   +1 more source

Minimalism Beyond the Nurnberg Funnel

open access: yesIssues in Science and Technology Librarianship, 1998
This article reviews the book Minimalism Beyond the Nurnberg Funnel. Cambridge, Mass.: MIT Press, 1998, edited by John M. Carroll.
Bill T. Johnson
doaj   +1 more source

Factors Affecting Adult Captures of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Pheromone-Baited Traps

open access: yesAgronomy, 2021
The effects of funnel-trap color, trap height and pheromone formulation on the adult captures of the cotton bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) were evaluated in traps that were suspended in cotton fields in central Greece ...
Alkiviadis Karakasis   +3 more
doaj   +1 more source

Midterm Outcomes for Funnel-EVAR

open access: yesReviews in Cardiovascular Medicine
Background: The funnel technique, the hybrid assembly of a thoracic and abdominal aortic endograft, is advantageous for frail patients where efficient oversizing is not possible for infrarenal wide aortic necks over 34 mm.
Bahadır Aytekin   +4 more
doaj   +1 more source

An Electrostatic Funnel in the GABA-Binding Pathway. [PDF]

open access: yesPLoS Computational Biology, 2016
The γ-aminobutyric acid type A receptor (GABAA-R) is a major inhibitory neuroreceptor that is activated by the binding of GABA. The structure of the GABAA-R is well characterized, and many of the binding site residues have been identified.
Timothy S Carpenter, Felice C Lightstone
doaj   +1 more source

Esophageal cancer with severe funnel chest treated by simultaneous funnel chest surgery and thoracoscopic esophagectomy: a case report

open access: yesBMC Cancer, 2018
Background Funnel chest is the most common chest deformity, occurring in 0.06–0.3% of the general population. When it occurs concomitantly with esophageal cancer, it hinders intrathoracic surgery that is necessary for treatment.
Keiichiro Hatoyama   +6 more
doaj   +1 more source

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