Results 181 to 190 of about 106,651 (339)

Boeing 747 aircraft with large external pod for transporting outsize cargo [PDF]

The effect on structural arrangement, system weight, and range performance of the cargo pod payload carrying capability was determined to include either the bridge launcher or a spacelab module on a Boeing 747 aircraft.
Price, J. E., Quartero, C. B., Smith, P. M., Washburn, G. F.   +3 more
core   +1 more source

Europe and Generational Replacement in Fishing: Analysis of the Scarcity of Studies and Proposals for Future Lines of Research

Fish and Fisheries, EarlyView.
ABSTRACT The fishing sector is facing a major crisis, usually addressed from an economic and/or environmental perspective. However, at least in developed countries, the ageing of fishers and the lack of generational replacement is one of the main challenges to its survival. Although the sector has been calling for this problem to be addressed, there is
Andrea Márquez‐Escamilla, Meritxell Maimi‐Checa, Paloma Herrera‐Racionero, Lluís Miret‐Pastor   +3 more
wiley   +1 more source

Modeling of dynamic responses of arresting gear and its sensitivity study based on BP neural network optimized by Whale optimization algorithm. [PDF]

Sci Rep
Deng Q, Wang J, Gai J, Jian Y, Wang Y, Zheng M.   +5 more
europepmc   +1 more source

Computational Evaluation of Airframe Noise Reduction Concepts at Full Scale [PDF]

High-fidelity simulations focused on full-scale evaluation of new technologies for mitigating flap and landing gear noise are presented. These noise reduction concepts were selected because of their superior acoustic performance, as demonstrated during ...
Duda, Benjamin, Fares, Ehab, Hazir, Andreas, Khorrami, Mehdi R.   +3 more
core   +1 more source

Review of National Laws and Regulations in China in Relation to the Precautionary Approach to Fisheries Management

Fisheries Management and Ecology, EarlyView.
ABSTRACT The precautionary approach has been widely accepted as an important guideline in international, regional, and national fisheries management. The United Nations Fish Stocks Agreement provided a foundational framework for the application of the precautionary approach in fisheries management.
Xiao‐lin Chu
wiley   +1 more source

Examination of Afghanistan's Development Traps

Regional Science Policy &Practice, EarlyView., 2022
Abstract We examine the factors behind Afghanistan's persistent underdevelopment. Drawing on various theories of development traps operating at the demographic, economic and institutional levels, we seek to assess whether and to what extent their functioning affects Afghanistan's development. To capture the functioning of development traps empirically,
Klemen Knez, Tina G. Lokar
wiley   +1 more source

Overload of the lower limbs of firefighters as a result of external conditions. [PDF]

PLoS One
Iwańska D, Tabor P, Urbanik C, Wiszomirska I, Mastalerz A.   +4 more
europepmc   +1 more source

Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas, Donna Dimarchopoulou, Ioanna Argyrou, Athanassios C. Tsikliras   +3 more
wiley   +1 more source

Design and Validation of a New Tilting Rotor VTOL Drone: Structural Optimization, Flight Dynamics, and PID Control. [PDF]

Sensors (Basel)
Gong H, He W, Hou S, Chen M, Yang Z, Si Q, Zhao D.   +6 more
europepmc   +1 more source

Measured and Simulated Acoustic Signature of a Full-Scale Aircraft with Airframe Noise Reduction Technology Installed [PDF]

Microphone phased-array and pole-mounted microphone data gathered during the NASA Acoustics Research Measurements flight tests were used to benchmark results from companion full-scale aeroacoustics simulations. Conducted with the lattice Boltzmann solver
Duda, Benjamin, Ferris, Ryan, Khorrami, Mehdi R., Lockard, David P., Ravetta, Patricio A.   +4 more
core   +1 more source