Results 21 to 30 of about 592,808 (292)

Military aircraft: LED lights for high-speed take-offs, landing, and taxi [PDF]

open access: yesINCAS Bulletin, 2022
This paper presents the authors’ recent documentary research on the benefits of using LED lighting products for military aircraft for high-speed take-offs, landings, and taxiing.
Bogdan Adrian NICOLIN, Ilie NICOLIN
doaj   +1 more source

“Little Red Jellies” in Monterey Bay, California (Cnidaria: Hydrozoa: Trachymedusae: Rhopalonematidae)

open access: yesFrontiers in Marine Science, 2020
Several species of small, red, deep-sea Trachymedusae have been described and then re-described over the past 20 years, leading to some confusion in the scientific literature.
George I. Matsumoto   +4 more
doaj   +1 more source

Hip External Rotator Strength Is Associated With Better Dynamic Control of the Lower Extremity During Landing Tasks [PDF]

open access: yes, 2016
Hip external rotator strength is associated with better dynamic control of the lower extremity during landing tasks. J Strength Cond Res 30(1): 282–291, 2016—The purpose of this study was to determine the association between hip strength and lower ...
Geiser, Christopher   +4 more
core   +2 more sources

The effect of graded knee brace at two angles of 60 and 30 degrees on the frequency spectrum of ground reaction forces in individuals with genu valgum during landing [PDF]

open access: yesمجله پزشکی دانشگاه علوم پزشکی تبریز, 2021
Background: Genu valgum is a postural malalignment in the knee joint. This malalignment is accompanied by altered mechanical forces in the tibiofemoral and patellofemoral joints.
AmirAli Jafarnezhadgero   +4 more
doaj   +1 more source

Oleo-pneumatic Mixed Shock Absorber Landing Pressure Analysis of Landing Gear

open access: yesHangkong gongcheng jinzhan, 2020
The landing gear of an aircraft bears a large impact load during landing, which causes the internal shock absorber to withstand high oil pressure and air pressure, and the buffer performance is greatly influenced.
LOU Rui   +3 more
doaj   +1 more source

The artisanal elasmobranch fishery on the east coast of Baja California, Mexico: Characteristics and management considerations

open access: yesCiencias Marinas, 2009
The Mexican elasmobranch fishery ranks among the most important in the world, but details associated with fishing effort and species composition are generally unavailable, particularly for the extensive artisanal fishery. Seasonal surveys were conducted
WD Smith, JJ Bizzarro, GM Cailliet
doaj   +1 more source

Hazards evaluation of a valuable vulnerable sand-wave field forage fish habitat in the marginal Central Salish Sea using a submersible

open access: yesOceanologia, 2023
The Salish Sea is a marginal inland sea of the NE Pacific (NW North America) that includes the Georgia Strait-Gulf Islands Archipelago of British Columbia, Canada and the San Juan Archipelago, Strait of Juan de Fuca, and the Lower Puget Sound of ...
H. Gary Greene   +3 more
doaj   +1 more source

Stereo-video landers can rapidly assess marine fish diversity and community assemblages

open access: yesFrontiers in Marine Science
Climate change and anthropogenic stressors affect the distribution, abundance, and diversity of fish communities across the world. To understand rapidly changing biotic communities, resource managers need a method to quickly and efficiently document ...
Kinsey E. Matthews   +5 more
doaj   +1 more source

High‐frequency and long‐term observations of eDNA from imperiled salmonids in a coastal stream: Temporal dynamics, relationships with environmental factors, and comparisons with conventional observations

open access: yesEnvironmental DNA, 2022
A greater understanding of eDNA behavior in the environment is needed before it can be employed for ecosystem monitoring applications. The objectives of this study were to use autonomous sampling to conduct long‐term, high‐frequency monitoring of the ...
Ryan T. Searcy   +10 more
doaj   +1 more source

A bifurcation study to guide the design of a landing gear with a combined uplock/downlock mechanism [PDF]

open access: yes, 2014
This paper discusses the insights that a bifurcation analysis can provide when designing mechanisms. A model, in the form of a set of coupled steady-state equations, can be derived to describe the mechanism.
Knowles, James A C   +3 more
core   +3 more sources

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