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32 Results Found

  • Article
  • Open Access
1 Citations
2,813 Views
29 Pages

Evaluation of Boulder Characteristics for Improved Boulder Detection Based on Machine Learning Techniques

  • Signe Schilling Hansen,
  • Verner Brandbyge Ernstsen,
  • Mikkel Skovgaard Andersen,
  • Zyad Al-Hamdani,
  • Ramona Baran,
  • Manfred Niederwieser,
  • Frank Steinbacher and
  • Aart Kroon

16 November 2022

Detailed maps of the seabed and knowledge of its habitats are critical for a wide range of tasks, such as sustainable development, and environmental protection. Boulders on the seabed form an important environment for ecosystems, but the detection of...

  • Article
  • Open Access
17 Citations
5,199 Views
20 Pages

16 July 2020

In marine habitat mapping, a demand exists for high-resolution maps of the seafloor both for marine spatial planning and research. One topic of interest is the detection of boulders in side scan sonar backscatter mosaics of continental shelf seas. Bo...

  • Article
  • Open Access
3 Citations
2,963 Views
11 Pages

Synthetic Study of Boulder Detection Using Multi-Configuration Combination of Cross-Hole ERT and Its Field Application in Xiamen Metro, China

  • Ningbo Li,
  • Zhao Dong,
  • Zhengyu Liu,
  • Bing Yan,
  • Kai Wang,
  • Lichao Nie,
  • Chunjin Lin,
  • Junfeng Shen,
  • Zhao Ma and
  • Yongheng Zhang

14 December 2021

With the fast development of urban rail transportation, shield construction has been widely used in tunnel construction in China. It is very important to detect the random distribution of boulders, which may cause geological problems. Cross-hole elec...

  • Article
  • Open Access
164 Citations
23,584 Views
19 Pages

20 September 2021

It is of great significance to apply the object detection methods to automatically detect boulders from planetary images and analyze their distribution. This contributes to the selection of candidate landing sites and the understanding of the geologi...

  • Article
  • Open Access
1,895 Views
13 Pages

2 August 2024

In subway construction, the presence of boulders can significantly impact excavation and tunneling processes. However, despite these challenges, an effective and reliable method for detecting boulders in advance has not yet been established. This pap...

  • Article
  • Open Access
17 Citations
5,929 Views
16 Pages

Limitations of Boulder Detection in Shallow Water Habitats Using High-Resolution Sidescan Sonar Images

  • Gitta Ann von Rönn,
  • Klaus Schwarzer,
  • Hans-Christian Reimers and
  • Christian Winter

Stones and boulders in shallow waters (0–10 m water depth) form complex geo-habitats, serving as a hardground for many benthic species, and are important contributors to coastal biodiversity and high benthic production. This study focuses on limitati...

  • Article
  • Open Access
4 Citations
2,626 Views
25 Pages

A Semi-Automated, Hybrid GIS-AI Approach to Seabed Boulder Detection Using High Resolution Multibeam Echosounder

  • Eoin Downing,
  • Luke O’Reilly,
  • Jan Majcher,
  • Evan O’Mahony and
  • Jared Peters

5 August 2025

The detection of seabed boulders is a critical step in mitigating geological hazards during the planning and construction of offshore wind energy infrastructure, as well as in supporting benthic ecological and palaeoglaciological studies. Traditional...

  • Article
  • Open Access
47 Citations
8,509 Views
16 Pages

Detection of Boulders in Side Scan Sonar Mosaics by a Neural Network

  • Peter Feldens,
  • Alexander Darr,
  • Agata Feldens and
  • Franz Tauber

Boulders provide ecologically important hard grounds in shelf seas, and form protected habitats under the European Habitats Directive. Boulders on the seafloor can usually be recognized in backscatter mosaics due to a characteristic pattern of high b...

  • Article
  • Open Access
22 Citations
5,135 Views
23 Pages

Using UAV and Structure-From-Motion Photogrammetry for the Detection of Boulder Movement by Storms on a Rocky Shore Platform in Laghdira, Northwest Morocco

  • Mouncef Sedrati,
  • Juan A. Morales,
  • Abdelmounim El M’rini,
  • Edward J. Anthony,
  • Glen Bulot,
  • Romain Le Gall and
  • Abdelkarim Tadibaght

21 August 2022

The detachment and mobilization of boulders from rocky shore platforms by waves involves complex geomorphic and hydrodynamic processes. Understanding these processes requires precise information on the rates and patterns of movement of these megaclas...

  • Article
  • Open Access
14 Citations
4,131 Views
25 Pages

Classification of Boulders in Coastal Environments Using Random Forest Machine Learning on Topo-Bathymetric LiDAR Data

  • Signe Schilling Hansen,
  • Verner Brandbyge Ernstsen,
  • Mikkel Skovgaard Andersen,
  • Zyad Al-Hamdani,
  • Ramona Baran,
  • Manfred Niederwieser,
  • Frank Steinbacher and
  • Aart Kroon

13 October 2021

Boulders on the seabed in coastal marine environments provide key geo- and ecosystem functions and services. They serve as natural coastal protection by dissipating wave energy, and they form an important hard substrate for macroalgae, and hence for...

  • Article
  • Open Access
6 Citations
3,622 Views
21 Pages

Terrestrial Laser Scanning for the Detection of Coarse Grain Size Movement in a Mountain Riverbed

  • Agata Walicka,
  • Grzegorz Jóźków,
  • Marek Kasprzak and
  • Andrzej Borkowski

23 October 2019

Fluvial transport is a natural process that shapes riverbeds and the surrounding terrain surface, particularly in mountainous areas. Since the traditional techniques used for fluvial transport investigation provide only limited information about the...

  • Article
  • Open Access
10 Citations
6,487 Views
23 Pages

Multi-Temporal Investigation of the Boulder Clay Glacier and Northern Foothills (Victoria Land, Antarctica) by Integrated Surveying Techniques

  • Stefano Urbini,
  • Gianluca Bianchi-Fasani,
  • Paolo Mazzanti,
  • Alfredo Rocca,
  • Luca Vittuari,
  • Antonio Zanutta,
  • Valentina Alena Girelli,
  • Michelina Serafini,
  • Achille Zirizzotti and
  • Massimo Frezzotti

25 June 2019

The paper aims to detect the main changes that occurred in the area surrounding the Mario Zucchelli Station (MZS) through analysis of multi-temporal remote sensing integrated by geophysical measurements. Specific attention was directed at realizing a...

  • Article
  • Open Access
1 Citations
4,298 Views
20 Pages

Comparison of Earthquake and Moisture Effects on Rockfall-Runouts Using 3D Models and Orthorectified Aerial Photos

  • Mohammad Al-Shaar,
  • Pierre-Charles Gérard,
  • Ghaleb Faour,
  • Walid Al-Shaar and
  • Jocelyne Adjizian-Gérard

16 January 2023

Rockfall hazard gains popularity nowadays among researchers in different scientific fields, decision-makers and urban planners. The assessment of rockfall hazard requires detection, mapping and estimating the maximum travel distance that rock boulder...

  • Article
  • Open Access
5 Citations
2,652 Views
32 Pages

Landward displacements of coastal boulders are geomorphological signatures of sea flooding and erosion processes. In this study, using open-access resources that do not require the integration of specialist software, the 2017 to 2021 annual mobility...

  • Article
  • Open Access
7 Citations
1,937 Views
14 Pages

31 August 2023

We present a new fiber-amplifier-based differential absorption light detection and ranging (DIAL) system for range-resolved detection of carbon dioxide (CO2) and water vapor (H2O) over a range of a few kilometers. The fiber amplifier chain is seeded...

  • Article
  • Open Access
12 Citations
6,250 Views
15 Pages

18 May 2024

This study delves into the fusion of ground-based and drone-based ground-penetrating radar (GPR) technologies in archaeological exploration. Set against the backdrop of the Hulata solar panel construction site in Israel, the research confronts daunti...

  • Article
  • Open Access
8 Citations
3,580 Views
13 Pages

22 March 2020

The Near-Earth Asteroid 162173 Ryugu is a C-type asteroid which preserves information about the ancient Solar System and is considered enriched in volatiles such as water and organics associated with the building blocks of life, and it is a potential...

  • Article
  • Open Access
354 Views
31 Pages

Generative AI and Simulation-Based Data Augmentation for Enhanced Object Detection in Low-Data Forestry Environments

  • Krzysztof Wołk,
  • Ramana Reddy Avula,
  • Aleksi Narkilahti,
  • Marek S. Tatara,
  • Jacek Niklewski and
  • Oleg Żero

27 February 2026

Detecting rare ground-level obstacles (e.g., large boulders) in dense boreal forests from low-altitude UAV RGB imagery is challenging due to limited annotated data, strong background clutter, and expensive field labeling. This paper evaluates two com...

  • Article
  • Open Access
11 Citations
5,840 Views
10 Pages

22 February 2022

Due to the role that sugar-sweetened beverages (SSBs) play in the obesity epidemic, SSB taxes have been enacted in the United States in the California cities of Albany, Berkeley, Oakland, and San Francisco, as well as in Boulder, Philadelphia, and Se...

  • Review
  • Open Access
7 Citations
3,447 Views
23 Pages

First Insights into the Microbiology of Three Antarctic Briny Systems of the Northern Victoria Land

  • Maria Papale,
  • Carmen Rizzo,
  • Gabriella Caruso,
  • Rosabruna La Ferla,
  • Giovanna Maimone,
  • Angelina Lo Giudice,
  • Maurizio Azzaro and
  • Mauro Guglielmin

15 July 2021

Different polar environments (lakes and glaciers), also in Antarctica, encapsulate brine pools characterized by a unique combination of extreme conditions, mainly in terms of high salinity and low temperature. Since 2014, we have been focusing our at...

  • Article
  • Open Access
8 Citations
2,864 Views
15 Pages

Direct-Read Fluorescence-Based Measurements of Bioaerosol Exposure in Home Healthcare

  • Vishal D. Nathu,
  • Jurate Virkutyte,
  • Marepalli B. Rao,
  • Marina Nieto-Caballero,
  • Mark Hernandez and
  • Tiina Reponen

Home healthcare workers (HHCWs) are subjected to variable working environments which increase their risk of being exposed to numerous occupational hazards. One of the potential occupational hazards within the industry includes exposure to bioaerosols...

  • Article
  • Open Access
3 Citations
2,404 Views
18 Pages

Projecting Northern Hemisphere Flow Regime Transition Using Integrated Enstrophy

  • Emily Klaus,
  • Patrick Market,
  • Anthony Lupo,
  • Michael Bodner and
  • Joshua Kastman

28 August 2020

Integrated enstrophy (IE) is the square of vorticity integrated over an entire hemisphere at a particular level in the atmosphere. Previous work has shown this quantity is correlated to the positive Lyapunov Exponent for hemispheric flow, and as such...

  • Article
  • Open Access
17 Citations
3,813 Views
15 Pages

23 September 2021

We assess if variations in the in situ cosmogenic 26Al/10Be production ratio expected from nuclear physics are consistent with empirical data, knowledge critical for two-isotope studies. We do this using 313 samples from glacially transported boulder...

  • Article
  • Open Access
21 Citations
5,785 Views
22 Pages

Quantitative Assessment and Spatial Analysis of Metals and Metalloids in Soil Using the Geo-Accumulation Index in the Capital Town of Romblon Province, Philippines

  • Delia B. Senoro,
  • Cris Edward F. Monjardin,
  • Eddie G. Fetalvero,
  • Zidrick Ed C. Benjamin,
  • Alejandro Felipe B. Gorospe,
  • Kevin Lawrence M. de Jesus,
  • Mark Lawrence G. Ical and
  • Jonathan P. Wong

22 October 2022

The municipality of Romblon in the Philippines is an island known for its marble industry. The subsurface of the Philippines is known for its limestone. The production of marble into slab, tiles, and novelty items requires heavy equipment to cut rock...

  • Article
  • Open Access
27 Citations
12,662 Views
27 Pages

Autonomous Loading System for Load-Haul-Dump (LHD) Machines Used in Underground Mining

  • Carlos Tampier,
  • Mauricio Mascaró and
  • Javier Ruiz-del-Solar

18 September 2021

This paper describes an autonomous loading system for load-haul-dump (LHD) machines used in underground mining. The loading of fragmented rocks from draw points is a complex task due to many factors including: bucket-rock interaction forces that are...

  • Article
  • Open Access
5 Citations
5,589 Views
19 Pages

Sand Ridges on Rocky Coastal Platforms as Markers of Tsunami Impact: A Multi-Disciplinary Analysis along the Ionian Coast of Southern Apulia (Italy)

  • Paolo Sansò,
  • Lucio Calcagnile,
  • Paola Fago,
  • Sara Mazzotta,
  • Sergio Negri,
  • Gianluca Quarta,
  • Claudia Romagnoli,
  • Andrea Vitale and
  • Giuseppe Mastronuzzi

Along the Ionian coast of Southern Apulia, a sand ridge has been detected at the inner border of a wide, low-elevated rocky platform. A multi-disciplinary analysis was carried out to define the main geomorphological and sedimentological features of t...

  • Article
  • Open Access
24 Citations
9,004 Views
17 Pages

Ultrafine and Fine Particulate Matter Inside and Outside of Mechanically Ventilated Buildings

  • Shelly L. Miller,
  • Nick A. Facciola,
  • Darin Toohey and
  • John Zhai

The objectives of this study were to measure levels of particulate matter (PM) in mechanically ventilated buildings and to improve understanding of filtration requirements to reduce exposure. With the use of an Ultra High Sensitivity Aerosol Spectrom...

  • Feature Paper
  • Article
  • Open Access
15 Citations
3,816 Views
20 Pages

Coastal megaclast deposits are dominated by detrital particles larger than 1 m in size. These attract significant attention of modern researchers because of the needs of sedimentary rock nomenclature development and interpretation of storm and tsunam...

  • Article
  • Open Access
22 Citations
4,712 Views
20 Pages

Performance Testing of Optical Flow Time Series Analyses Based on a Fast, High-Alpine Landslide

  • Doris Hermle,
  • Michele Gaeta,
  • Michael Krautblatter,
  • Paolo Mazzanti and
  • Markus Keuschnig

18 January 2022

Accurate remote analyses of high-alpine landslides are a key requirement for future alpine safety. In critical stages of alpine landslide evolution, UAS (unmanned aerial system) data can be employed using image registration to derive ground motion wi...

  • Article
  • Open Access
21 Citations
3,630 Views
17 Pages

Automatic Filtering and Classification of Low-Density Airborne Laser Scanner Clouds in Shrubland Environments

  • Tiziana Simoniello,
  • Rosa Coluzzi,
  • Annibale Guariglia,
  • Vito Imbrenda,
  • Maria Lanfredi and
  • Caterina Samela

13 October 2022

The monitoring of shrublands plays a fundamental role, from an ecological and climatic point of view, in biodiversity conservation, carbon stock estimates, and climate-change impact assessments. Laser scanning systems have proven to have a high capab...

  • Article
  • Open Access
605 Views
17 Pages

Next-Generation Sequencing-Based Detection of KRAS G12D Variants in Colorectal Cancer: A Retrospective Cohort Study

  • Gulam Hekimoglu,
  • Metin Eser,
  • Murat Hakki Yarar,
  • Fatma Gulcicek Ayranci and
  • Melike Ozcelik

31 January 2026

Purpose: Colorectal cancer (CRC) is a highly aggressive malignancy of the digestive system. Somatic variants in the Kirsten rat sarcoma virus oncogene homolog (KRAS) gene have a significant influence on CRC progression and serve as key predictors of...

  • Review
  • Open Access
144 Citations
25,439 Views
17 Pages

4 April 2008

Debris flows are a type of mass movement that occurs in mountain torrents. They consist of a high concentration of solid material in water that flows as a wave with a steep front. Debris flows can be considered a phenomenon intermediate between lands...