Results 21 to 30 of about 345,655 (307)

Comparing handline and trolling fishing methods in the recreational pelagic fishery in the Gulf of Oman

open access: yesScientia Marina, 2019
The choice of fishing gear and catching strategy should be taken into consideration in the management of fish stocks. Here, paired fishing trials in a pelagic recreational fishery compared the catch composition, catch rate and size selectivity between ...
Morteza Eighani   +2 more
doaj   +1 more source

Compensatory recruitment, dynamic habitat, and selective gear present challenges to large‐scale invasive species control

open access: yesEcosphere, 2020
Control of long‐established invasive species to aid threatened native species presents major logistic and economic challenges. Invasive common carp (Cyprinus carpio) recently accounted for over 90% of the fish biomass in Utah Lake (Utah, USA), driving ...
Timothy E. Walsworth   +2 more
doaj   +1 more source

Geometrical Specification Model for Gear - Expression, Metrology and Analysis [PDF]

open access: yes, 2007
To ensure the gear precision, industries need a coherent model to express, to analyse and to check geometrical specifications. Most gear tolerance representations are directly driven by the convenience of dimensional metrology and not by the convenience ...
DANTAN, Jean-Yves   +4 more
core   +1 more source

Bifurcation analysis of nose landing gear shimmy with lateral and longitudinal bending [PDF]

open access: yes, 2009
We develop and study a model of an aircraft nose landing gear with torsional, lateral and longitudinal degrees of freedom. The corresponding three modes are coupled in a nonlinear fashion via the geometry of the landing gear in the presence of a nonzero ...
Thota, P   +5 more
core   +1 more source

Assessment of a small-scale fishery: Lane Snapper (Lutjanus synagris) using a length metric method.

open access: yesPLoS ONE, 2021
Small-scale fisheries are hard to assess because of the limited availability of data. Therefore, a method requiring easy-to-obtain catch-data is important for the assessment and management of small-scale fisheries.
Liliana Sierra Castillo, Masami Fujiwara
doaj   +1 more source

Refining tickler chains for penaeid trawls

open access: yesAquaculture and Fisheries, 2022
Tickler chains are simple additions to the ground gears of benthic trawls that can improve the catches of some target species, albeit with considerable variability.
Matt K. Broadhurst
doaj   +1 more source

Using tickler chains to promote more environmentally benign trawls in an Australian penaeid fishery

open access: yesAquaculture and Fisheries, 2023
There has been an increasing emphasis on reducing the environmental impacts of penaeid trawls by modifying their anterior sections. In one Australian estuary, this approach has culminated in a new generic trawl comprising a slightly smaller mesh size ...
Matt. K. Broadhurst, Daniel J. Tolhurst
doaj   +1 more source

Bifurcation Analysis of a Coupled Nose Landing Gear-Fuselage System [PDF]

open access: yes, 2014
Under certain conditions during takeoff and landing, pilots may sometimes experience vibrations in the cockpit. Because the cockpit is located right above the nose landing gear, which is known to potentially be prone to self-excited vibrations at certain
Lowenberg, Mark H   +3 more
core   +1 more source

ANALISIS TINGKAT KERAMAHAN LINGKUNGAN ALAT TANGKAP BUBU LIPAT DI PERAIRAN LAUT JAWA KABUPATEN BANGKALAN

open access: yesJFMR-Journal of Fisheries and Marine Research, 2023
Teknologi penangkapan ikan yang ramah lingkungan dan berkelanjutan merupakan suatu teknologi penangkapan ikan dengan menggunakan alat  tangkap yang tidak memberikan dampak negatif terhadap lingkungan.
Hery Susanto   +2 more
doaj   +1 more source

Perforated fairings for landing gear noise control [PDF]

open access: yes, 2008
Landing gears of commercial aircraft make an important contribution to total aircraft noise in the approach configuration. Using fairings to shield components from high speed impingement reduces noise.
Boorsma, K.   +5 more
core   +1 more source

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