Results 151 to 160 of about 1,910,400 (338)

The implications of military unmanned maritime vehicles on the international maritime security order: from challenge to re-balance

Frontiers in Political Science
In recent years, the continuous application and expansion of unmanned intelligent technology in military maritime equipment have spurred the rapid development of military unmanned maritime vehicles, represented by Unmanned Surface Vehicles and Unmanned ...
Xidi Chen, Lun Li
doaj   +1 more source

Uncertainty assessment for a novel optically shallow water radiometric acquisition platform

Limnology and Oceanography: Methods, EarlyView.
Abstract We present a novel motorized platform, a custom‐built jet‐ski designed for acoustic and radiometric measurements in optically shallow coastal waters. This platform integrates in‐water radiometers with single‐beam and multi‐beam acoustic sensors, along with a suite of active and passive instruments (conductivity‐temperature‐depth, fluorescence,
Raphaël Mabit, Simon Bélanger, Pascal Bernatchez   +2 more
wiley   +1 more source

Adaptive Estimation Algorithm for Correcting Low-Cost MEMS-SINS Errors of Unmanned Vehicles under the Conditions of Abnormal Measurements. [PDF]

Sensors (Basel), 2021
Zhang L, Viktorovich PA, Selezneva MS, Neusypin KA.   +3 more
europepmc   +1 more source

Marine litter can shift sea turtle nests toward the shoreline

Oikos, EarlyView.
Marine litter is an emerging threat to sea turtle rookeries, yet its effects on nesting behaviour remain poorly understood. In this study, we investigated how macro‐litter accumulation on beaches influences the spatial distribution of loggerhead turtle Caretta caretta nests on Boa Vista Island, Cabo Verde.
Diana Sousa‐Guedes, Adolfo Marco, Maria Medina, Filipa Bessa, Neftalí Sillero   +4 more
wiley   +1 more source

Transition pathways from vulnerability to viability of small‐scale fisheries in Africa and Asia

People and Nature, EarlyView.
Abstract This perspective paper examines transition pathways that move small‐scale fisheries from vulnerability towards viability. We understand ‘vulnerability to viability transition pathways’ as integrative and one that extends beyond economic concerns to include social, political, cultural and ecological aspects of small‐scale fisheries.
Ella‐Kari Muhl, Derek Armitage, Prateep Kumar Nayak, Sisir Pradhan, Maha Abdelbaset, Denis Aheto, Richard Adade, Shehu Latunji Akintola, Evans Kwasi Arizi, Essinam Attipoe, Jessica Blythe, Alida Bundy, Ratana Chuenpagdee, Anuradha Choudry, Basanta Kumar Das, Chitra Devi, Kafayat Fakoya, Mafaniso Hara, Shahriyer Hossain, Moeniba Isaacs, Gazi Md Nurul Islam, Mohammad Mahmudal Islam, Hapsari Ayu Kusumawardhani, Kungwan Junrashote, Yinji Li, Moffat Manase, Ahmadou Aly Mbaye, Ishmael Kosamu, Jenia Mukherjee, Tamano Namikawa, Friday Njaya, Justice Odoi, Deborah Prado, Emon Rahman, Qurban Rouhani, Md Razin Saleh Alam, Aliou Sall, Clément Sambou, Revarunan Sammogam, Alassane Sarr, Khady Yama Sarr, Suvaluck Satumanatpan, Samiya Ahmed Selim, Indah Susilowati, Vannessa Warren, Julius Francis Woiso, Batuli Mohammed Yahya   +46 more
wiley   +1 more source

Autonomous Marine Vehicle Operations—2nd Edition

Journal of Marine Science and Engineering
In recent years, the field of autonomous marine vehicles has undergone remarkable advancements, with unmanned surface vehicles (USVs) and unmanned underwater vehicles (UUVs) demonstrating transformative potential for oceanographic exploration and marine ...
Xiao Liang, Rubo Zhang, Xingru Qu
doaj   +1 more source

The Hidden Human Factors in Unmanned Aerial Vehicles [PDF]

, 2008
In April 2006, an Unmanned Aerial Vehicle crashed near Nogales, Arizona. This incident is of interest because it triggered one of the most sustained studies into the causes of failure involving such a vehicle.
Johnson, C.W.
core  

The Need for Fundamental Photovoltaics Research to Ensure Energy Security

Progress in Photovoltaics: Research and Applications, EarlyView.
The center of this graphic focuses on the core of this paper—that fundamental research is central to the continued development of the photovoltaic (PV) industry. To the left, we have depictions of what is being studied—PV materials, PV cell structures, and PV module structures.
Rebecca Saive, Gavin Conibeer, Lisanne M. Einhaus, Jean‐François Guillemoles, Koami Soulemane Hayibo, Karin Hinzer, Jacob J. Krich, Martha Lenio, Michael P. Nielsen, Frederick U. Nitta, Ian R. Sellers, Daniel Suchet, Eric Tervo, Tom Tiedje, Jelle Westerhof   +14 more
wiley   +1 more source

An interdisciplinary review of the interplay of conflict, socio‐economic factors, and land cover and vegetation dynamics in Colombia

PLANTS, PEOPLE, PLANET, EarlyView.
Colombia's forests play a crucial role in preserving biodiversity and mitigating climate change, but they are currently facing severe degradation, particularly after the 2016 Peace Agreement. Our literature review highlights a growing research interest in this topic and demonstrates how interdisciplinary approaches combining diverse methods can enhance
Estefanía Muñoz, Jesús A. Anaya, Nicola Clerici, Lina M. Estupinan‐Suarez, Isabel Lopera, Solveig Richter, Alejandro Salazar, Carlos A. Sierra, Andrés Tangarife‐Escobar, Miguel D. Mahecha, David Montero, Pablo Palacios‐Rodríguez, Pablo Ramos, Santiago Botía   +13 more
wiley   +1 more source

Pesticide exposure of operators during mixing and loading a drone: towards a stratified exposure assessment

Pest Management Science, EarlyView.
Operators are exposed to concentrated formulation during mixing of pesticide into the nurse tank and to an in‐use dilution during loading the drone; stratification of exposure for mixing and loading would inform the exposure assessment approach by applying the appropriate dermal absorption considerations.
Edgars Felkers, Christian J Kuster, Georg Hamacher, Thomas Anft, Maxie Kohler   +4 more
wiley   +1 more source