Results 61 to 70 of about 8,095 (184)

Management challenges from technological development in commercial fisheries [PDF]

open access: yes, 2010
The major objective of this synthesis has been to throw light on how technological development in fisheries can complicate efforts to balance harvesting capacity and fish resources.
Eigaard, Ole Ritzau
core   +1 more source

Development of a space qualified high reliability rotary actuator. Volume 1: Technical report [PDF]

open access: yes
A space-qualified, high reliability, 150 ft-lb rated torque rotary acutator based on the Bendix Dynavector drive concept was developed. This drive is an integrated variable reluctance orbit motor-epicyclic transmission actuator.
Presley, R. W.   +2 more
core   +1 more source

Increase in catch efficiency using a semicircular ground gear in demersal trawls

open access: yesReviews in Fish Biology and Fisheries
Abstract In demersal trawls, ground gears are typically fixed to the fishing line to protect against the seabed and ensure seabed contact. Rockhoppers (RH) are among the most applied types of ground gears, especially in fisheries with rough seabed. However, their use has earlier been associated with substantial loss of catch under the fishing
Manu Sistiaga   +4 more
openaire   +1 more source

RANCANG BANGUN OPTIMASI SEL SURYA MENGGUNAKAN TRANSISTOR 2N3055 BEKAS BERBASIS MIKROKONTROLER ATMEGA 16 [PDF]

open access: yes, 2013
Tujuan dari pembuatan rancang bangun optimasi sel surya menggunakan transistor 2N3055 bekas berbasis mikrokontroler ATmega 16 adalah sebagai pengganti sel surya untuk sumber energi listrik menggunakan sampah elektronik dengan menggunakan pengarah sel ...
Taufiq Roisy , Hidayat
core  

Inferring fish escape behaviour in trawls based on catch comparison data: Model development and evaluation based on data from Skagerrak, Denmark [PDF]

open access: yes, 2014
During the fishing process, fish react to a trawl with a series of behaviours that often are species and size specific. Thus, a thorough understanding of fish behaviour in relation to fishing gear and a scientific understanding of the ability of ...
A Albalat   +34 more
core   +4 more sources

Abundance of horseshoe crabs (Limulus polyphemus) in the Delaware Bay area [PDF]

open access: yes, 2003
In recent years, increasing commercial landings of horseshoe crabs (Limulus polyphemus) along the Atlantic coast of the United States have raised concerns that the present resource is in decline and insufficient to support the needs of its user groups ...
Berkson, Jim, Hata, David
core  

Phase-Oriented Gear Systems [PDF]

open access: yes
Phase-oriented gear systems are differential planetary transmissions in which each planet gear has two sets of unequal numbers of teeth indexed at prescribed relative angles (phases).
Vranish, John M.
core   +1 more source

The blackback flounder and its fishery in New England and New York [PDF]

open access: yes, 1947
A decline in the abundance of blackback flounders, together with the withdrawal of vessels from this fishery, has resulted in a lowered catch in recent years compared to the peak period 1928 through 1931. Data obtained from U. S.
Perlmutter, Alfred
core  

A trait-based metric sheds new light on the nature of the body size-depth relationship in the deep sea [PDF]

open access: yes, 2016
Summary 1. Variation within species is an often-overlooked aspect of community ecology, despite the fact that the ontogenetic structure of populations influences processes right up to the ecosystem level.
Blanchard, J.L.   +3 more
core   +1 more source

Analysis of the Synchronized Locking Dynamic Characteristics of a Dual-Sidestay Main Landing Gear Retraction Mechanism

open access: yesAerospace
As an advanced design technology for large wide-body airliners, the three-dimensional (3D) dual-sidestay (DSS) landing gear retraction mechanism can share the ground loads transferred by the landing gear, reducing the load on the wings.
Zhipeng Zhang   +4 more
doaj   +1 more source

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