Results 101 to 110 of about 33,961 (285)

An autonomous and economical benthic incubation chamber for measuring dissolved oxygen fluxes in shallow, low‐flow environments

Limnology and Oceanography: Methods, EarlyView.
Abstract Benthic incubation chambers enclose a known volume of water overlying a known area to measure water chemistry changes and are typically used to quantify the metabolic activity of benthic organisms or communities. Here we present an economical benthic incubation chamber for shallow, low‐flow environments, built using off‐the‐shelf components ...
Luke D. Groff, Peter Berg, Karen J. McGlathery   +2 more
wiley   +1 more source

A path planning algorithm for unmanned surface vessel with pose constraints in an unknown environment

International Journal of Naval Architecture and Ocean Engineering
To solve the problem of full-process path planning that includes multi-target path planning and automatic mooring, this paper proposes a hybrid D*Lite algorithm for an unmanned surface vessel with pose constraints (position and attitude) in an unknown ...
Jiabin Yu, Yang Chen, Meng Yang, Zhihao Chen, Jiping Xu, Yang Lu, Zhiyao Zhao   +6 more
doaj   +1 more source

Investigation into the instantaneous centre of rotation for enhanced design of floating offshore wind turbines [PDF]

Wind Energy Science
The dynamic behaviour of floating offshore wind turbines (FOWTs) involves complex interactions of multivariate loads from wind, waves, and currents, which result in complex motion characteristics.
K. Patryniak, M. Collu, J. Jonkman, M. Hall, G. Barter, D. Zalkind, A. Coraddu   +6 more
doaj   +1 more source

Effect of triangle plate positioning on mooring line tension of single point mooring system

IOP Conference Series: Earth and Environmental Science
Abstract The marine transportation of crude oil from tankers to final terminals is facilitated using pipelines and oil terminals. The predominant form of the terminal is the Single Point Mooring system. The system is crucial as it anchors tankers and transfers crude oil from the ship to the system using floating hoses.
null Murdjito, Madea Eka Silfiani, Ferdita Syalsabila, null Sujantoko, Santi Frestiqauli, Eko Budi Djatmiko   +5 more
openaire   +1 more source

A revolutionary and operational tethered aerostat system illustrating new LTA technology [PDF]

, 1975
An operational tethered aerostat system, which demonstrates utility of LTA systems, is described. It was made possible by development of a reliable tethered aerostat that is used to support broadcast equipment at an altitude of 10,000 feet.
Menke, J. A.
core   +1 more source

Circadian Immunity and Vascular Inflammation in Cardiovascular Disease Chronotherapy Windows: Time for a Re‐Assessment

Med Research, EarlyView.
ABSTRACT Circadian rhythms orchestrate cardiovascular physiology by regulating immune and inflammatory pathways. Disruption of these rhythms profoundly alters vascular homeostasis, thereby promoting the onset and progression of cardiovascular diseases (CVD).
Tian Zhang, Ge Zhang, Tian‐Ding Liu, Tianshu Gu, Fengyi Yu, Pengyuan Xu, Wunan Mi, Xuanjiang Zhao, Qian Guo, Honglin Zheng, Taiqi Zhao, Qiang Li, Di Lu, Mingxuan Duan, Chaoyang Yu, Ruhao Wu, Shiqian Zhang, Haonan Zhang, Zeyu Wang, Youyang Zheng, Yan Xiao, Zenglei Zhang, Ge Zhang   +22 more
wiley   +1 more source

Dynamic analysis of submersible gravity-type fish cages with single-point mooring design

Journal of Ocean Engineering and Science
This study presents a conceptual design for a cost-effective submersible gravity-type fish cage with a single-point mooring design. The performance of the new design in reducing environmental loads under extreme sea conditions is demonstrated using an in-
Xueliang Wen, Muk Chen Ong
doaj   +1 more source

Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence

Oikos, EarlyView.
Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo, Pemelyn Santos, Mariina Günther, Jari Kouki, Tuomas Aakala   +4 more
wiley   +1 more source

Evidence of the selection of tidal streams by northern rock sole (Lepidopsetta polyxystra) for transport in the eastern Bering Sea [PDF]

, 2009
Depth data from archival tags on northern rock sole (Lepidopsetta polyxystra) were examined to assess whether fish used tidal currents to aid horizontal migration.
Nichol, Daniel G., Somerton, David A.
core  

The Politics of Policy Robustness: A Central Paradox and Computational Review of Adaptive Policymaking

Public Administration and Development, EarlyView.
ABSTRACT Policy robustness, that is, the capacity of policies to sustain performance across diverse and uncertain futures, is increasingly considered a core objective of public policymaking. Although adaptive policymaking is widely promoted as an approach to achieving policy robustness, it suffers from a central paradox highlighted by theories of the ...
Ola G. El‐Taliawi, Nihit Goyal
wiley   +1 more source