Results 61 to 70 of about 4,939 (248)

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source

Identification of Complex Multi-Vessel Encounter Scenarios and Collision Avoidance Decision Modeling for MASSs

Journal of Marine Science and Engineering
Complex multi-vessel encounter situations are a challenging problem for ships to avoid collisions, and the International Regulations for Preventing Collision at Sea, 1972 (COLREGs) do not provide a clear delineation of multi-vessel encounter situations ...
Hongguang Lyu, Xiaoru Ma, Guifu Tan, Yong Yin, Xiaofeng Sun, Lunping Zhang, Xikai Kang, Jian Song   +7 more
doaj   +1 more source

Sea–Sky Line and Its Nearby Ships Detection Based on the Motion Attitude of Visible Light Sensors

Sensors, 2019
In the maritime scene, visible light sensors installed on ships have difficulty accurately detecting the sea−sky line (SSL) and its nearby ships due to complex environments and six-degrees-of-freedom movement.
Xiongfei Shan, Depeng Zhao, Mingyang Pan, Deqiang Wang, Lining Zhao   +4 more
doaj   +1 more source

Volumetric mass transfer and dilution rate as key parameters for sustainable industrial syngas fermentation to isopropyl alcohol: modeling and parametric assessment

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Synthesis gas fermentation is a promising route for the valorization of steel mill off‐gas and for replacing conventional fossil‐based isopropyl alcohol (IPA) production. A recent 120 L pilot‐scale study reported 85% gas conversion at 90% product selectivity and claimed a negative global warming potential (GWP) without detailed process design.
Gijs J. A. Brouwer, Melvin J. G. Lourdusamy, Misza Jansen, John A. Posada   +3 more
wiley   +1 more source

A Return to the Sextant-Maritime Navigation Using Celestial Bodies and the Horizon. [PDF]

Sensors (Basel), 2023
Critchley-Marrows JJR, Mortari D.
europepmc   +1 more source

LWS-YOLOv7: A Lightweight Water-Surface Object-Detection Model

Journal of Marine Science and Engineering
In inland waterways, there is a high density of various objects, with a predominance of small objects, which can easily affect navigation safety. To improve the navigation safety of inland ships, this paper proposes a new lightweight water-surface object-
Zhengzhong Li, Hongxiang Ren, Xiao Yang, Delong Wang, Jian Sun   +4 more
doaj   +1 more source

Hybrid Obstacle Avoidance Algorithm Based on IAPF and MPC for Underactuated Multi-USV Formation

Journal of Marine Science and Engineering
In this paper, we propose a hybrid algorithm that integrates an improved artificial potential field method (IAPF), model predictive control (MPC), and an extended state observer (ESO) to address the obstacle avoidance problem in multi-unmanned surface ...
Hui Sun, Qing Xue, Mingyang Pan, Zongying Liu, Hangqi Li   +4 more
doaj   +1 more source

Scan Pattern for the Maritime Navigator

TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2017
The maritime high speed craft navigators` ultimate aim has for decades been to safely and efficient navigate the vessel to its destination. The last decade an increased use of technology has arrived at the maritime ship bridge. The use of Electronic Charts and Integrated Navigation Systems has revolutionized much of the work of the navigator, with the ...
Hareide, Odd Sveinung, Ostnes, Runar
openaire   +3 more sources

Cutting edge strategies for diabetic wound care: Nanotechnology, bioengineering, and beyond

BMEMat, EarlyView.
Graphical abstract illustrates the challenges in diabetic wound healing, covering pathophysiology, formulation hurdles, and emerging therapeutic strategies. It highlights the role of hyperglycemia, formulation complexities, and advanced technologies like bioprinting and AI in improving diabetic wound management. Abstract Diabetic wounds affect millions
Usama Ahmad, Wan Nurhidayah Wan Hanaffi, Anas Islam, Aimen Salman, Mohd Muazzam Khan, Faiyaz Shakeel, Qiang Cai, Xiaojun Cai, Quazi T. H. Shubhra   +8 more
wiley   +1 more source

Smoke Simulation with Detail Enhancement in Ship Fires

Journal of Marine Science and Engineering
Smoke simulation is a crucial yet challenging aspect of constructing ship fire scenarios. For the Eulerian smoke simulation method, the low-resolution grid results in a loss of smoke detail, while the high-resolution grid faces significant computational ...
Rui Tao, Hongxiang Ren, Xiao Yang, Delong Wang, Jian Sun   +4 more
doaj   +1 more source