Article
Environmental Sciences
Shelley MacDonell, Francisco Fernandoy, Paula Villar, Arno Hammann
Summary: Several large ice shelves in the Antarctic Peninsula region have experienced significant ice loss in recent decades, potentially driven by a combination of oceanic, atmospheric, and hydrological processes, as well as the presence of liquid water on the ice shelves. This study presents the discovery of saturated firn on the Muller Ice Shelf, suggesting the existence of a large contiguous or several disconnected smaller firn aquifers on this ice shelf. The detailed stratigraphic analysis of firn cores extracted in this study provides valuable information for modeling studies on firn aquifers.
Article
Geosciences, Multidisciplinary
Mulky Winata, Chris Elders, Vittorio Maselli, Randell A. Stephenson
Summary: The post-rift succession of the Northern Carnarvon Basin in north-western Australia shows significant vertical and lateral variation in seismic facies, indicating a complex depositional history of the margin. The sedimentary sequences above the Valanginian breakup unconformity exhibit various marine depositional environments, including fine-grained pelagic/hemipelagic deposition, energetic bottom currents, and clinoforms and mass-transport complexes (MTCs). The development of bottom currents may be related to changes in ocean circulation, while the presence of MTCs suggests increased seismic activity and slope instability.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Serge Parfait Koah Na Lebogo, Dieudonnee Bisso, Jeannette Ngo Elogan Ntem, Joseph Mvondo Ondoa
Summary: The N'kapa Formation in the Douala Basin is considered significant for groundwater and hydrocarbon resources. The study found lithofacies dominated by clays, silts, and sands/sandstones, with potential aquifers identified in fluvial channel-fill sands deposited during the base-level fall of the Upper Paleocene age (Lower Thanetian).
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Construction & Building Technology
Zoran Rakicevic, Aleksandra Bogdanovic, Ehsan Noroozinejad Farsangi, Abbas Sivandi-Pour
Summary: The study conducted comprehensive biaxial shake table tests on a novel structural vibration control system, demonstrating its high effectiveness and ability to improve the seismic performance of buildings during earthquakes. Incremental dynamic analysis (IDA) also showed that the proposed system has a higher collapse margin ratio (CMR) compared to conventional fixed-base frames.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Ester Piegari, Marcus Herrmann, Warner Marzocchi
Summary: This study investigates the analysis capability of two density-based clustering algorithms for spatial distribution of seismicity and their effectiveness in identifying highly active seismic volumes. By studying the influence of different input parameters on the cluster solutions, a crossover region with optimal solutions is identified. Synthetic cases and real earthquake sequences confirm the superiority of cluster solutions in the crossover region for identifying 3D features of tectonic structures.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
R. Rotondi, G. Bressan, E. Varini
Summary: In recent years, there has been growing interest in using statistical physics to describe seismic activity. This study analyzes a descriptor of seismic activity as a measure of the system's criticality and finds significant changes in this descriptor and the system's entropy before and after earthquakes. These results suggest that these indicators can serve as indicators of energy concentration and system activation state.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Energy & Fuels
Kashif Ishaq, Sohail Wahid, Muhammad Yaseen, Muhammad Hanif, Shehzad Ali, Jawad Ahmad, Mubashir Mehmood
Summary: The study focused on the subsurface geology of Bannu Basin in western Indus foreland Pakistan, utilizing regional seismic profiles and deep exploratory wells data. The results indicate a northwest-dipping formation trend, with potential hydrocarbon entrapment structures identified. Well correlations show significant lateral and vertical variations, with well failures attributed to poor data quality and mechanical issues. Reservoir characterization using statistical rock physics and petrophysics can provide further insights into hydrocarbon exploration efforts.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Geology
Patricia E. Fraino, R. William C. Arnott, Lilian Navarro
Summary: In the Castle Creek study area, a well-exposed continental-slope channel-complex called ICC1 is observed. ICC1 consists of four vertically stacked channel complexes, with two styles of channel fill and stacking pattern. The study found that the sediment properties and morphology of these channel complexes changed over time.
JOURNAL OF SEDIMENTARY RESEARCH
(2022)
Article
Mathematics, Interdisciplinary Applications
Antonio Samuel Alves Silva, Romulo Simoes Cezar Menezes, Osvaldo A. Rosso, Borko Stosic, Tatijana Stosic
Summary: This study analyzed the predictability and complexity of monthly rainfall temporal series in Pernambuco state, northeastern Brazil using complexity entropy causality plane and Fisher Shannon plane. By comparing the positions in these planes, different rainfall regimes in inland, intermediate, and coastal regions were distinguished. Time dependent analysis identified periods of higher entropy related to El Nino episodes and historical droughts in the Sertao region.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Environmental Sciences
Ray-Shyan Wu, Fiaz Hussain, Yuan-Chien Lin, Tzu-Yu Yeh, Kai-Chun Yu
Summary: The study applied Hierarchical Clustering Analysis to analyze the spatio-temporal patterns of groundwater in the Kaohsiung City region. It found that groundwater observation wells could be classified into five categories based on their geographical locations and sedimentary age, reflecting the characteristics of groundwater level fluctuations. This provides new insights into the aquifer response to recharge-discharge phenomenon, types of aquifers, and behaviors.
Article
Environmental Sciences
Kan Bun Cheng, Gedeon Dagan, Warren Barrash, Michael Cardiff, Avinoam Rabinovich
Summary: Characterizing aquifer heterogeneity is crucial for accurate flow and transport modeling. This study presents a new approach for statistically analyzing hydraulic properties in continuous pumping tomography tests of phreatic aquifers. The method involves determining equivalent hydraulic conductivity, specific storage, and specific yield at multiple locations and calculating statistical moments assuming random space variables. The results show that the spatial averages of the equivalent properties decrease with distance from the pumping well and stabilize at larger distances, consistent with existing theory.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Civil
Siyuan Li, Yung-Tsang Chen, Bo Li, William Soo Lon Wah
Summary: This paper proposes a novel approach for seismic vibration control of atrium buildings by using a core structure and a truss-inertial mass damper (IMD) system. The system utilizes unsynchronized vibrations to activate the IMD for seismic energy dissipation. Numerical simulations and parametric studies show that the truss-IMD system can effectively reduce the dynamic responses of the building and outperform traditional damper systems.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2022)
Article
Automation & Control Systems
German Herrera Vidal, Jairo R. Coronado Hernandez, Claudia Minnaard, Gustavo Gatica, Pablo Schwarzenberg
Summary: This study conducts a statistical analysis of the complexity of a manufacturing system and evaluates the correlations between various factors through experimental investigation and factor analysis. The results show a high level of complexity in manufacturing systems and significant associations between different subsectors, types of operation, and types of processes.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Energy & Fuels
M. Beladipour, M. Soleymani, Amir H. Abolmasoumi, M. Ebadi
Summary: This research explores the energy regeneration of active pendulum system in tall buildings. A regenerative hybrid passive-active pendulum system is proposed for controlling wind-induced vibrations. The findings show that the proposed system effectively reduces transmitted vibrations and the energy regeneration scheme can restore a certain percentage of power.
Article
Thermodynamics
Kashif Irshad, Salem Algarni, Nazrul Islam, Shafiqur Rehman, Md. Hasan Zahir, Amjad Ali Pasha, S. Nadaraja Pillai
Summary: This study investigates the electrical and thermal performance of a novel photovoltaic trombe wall with a venetian blind system (PVTW-VB) in a semi-arid climatic conditions. The findings suggest that the optimal configuration for the PVTW-VB system includes specific venetian blind spacing, angle, and air flow rate. The study also demonstrates that the PVTW-VB system can effectively reduce the thermal load of a test room.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Geological
Sara Amoroso, Kyle M. Rollins, Paul Andersen, Guido Gottardi, Laura Tonni, Maria F. Garcia Martinez, Kord Wissmann, Luca Minarelli, Cesare Comina, Daniela Fontana, Paolo Marco De Martini, Paola Monaco, Arianna Pesci, Vincenzo Sapia, Maurizio Vassallo, Marco Anzidei, Andrea Carpena, Francesca Cinti, Riccardo Civico, Igino Coco, Dario Conforti, Fawzi Doumaz, Fabio Giannattasio, Giuseppe Di Giulio, Sebastiano Foti, Fabiana Loddo, Stefano Lugli, Maria R. Manuel, Diego Marchetti, Mauro Mariotti, Valerio Materni, Brian Metcalfe, Giuliano Milana, Daniela Pantosti, Antonio Pesce, Aura C. Salocchi, Alessandra Smedile, Marco Stefani, Gabriele Tarabusi, Giordano Teza
ENGINEERING GEOLOGY
(2020)
Article
Energy & Fuels
Giorgia Dalla Santa, Antonio Galgaro, Raffaele Sassi, Matteo Cultrera, Paolo Scotton, Johannes Mueller, David Bertermann, Dimitrios Mendrinos, Riccardo Pasquali, Rodolfo Perego, Sebastian Pera, Eloisa Di Sipio, Giorgio Cassiani, Michele De Carli, Adriana Bernardi
Article
Green & Sustainable Science & Technology
Rodolfo Perego, Diego Viesi, Sebastian Pera, Giorgia Dalla Santa, Matteo Cultrera, Paola Visintainer, Antonio Galgaro
Article
Engineering, Civil
Arianna Pesci, Giordano Teza, Fabiana Loddo, Kyle M. Rollins, Paul Andersen, Luca Minarelli, Sara Amoroso
Summary: This study used terrestrial laser scanning and drone-based photogrammetry to investigate soil deformations caused by blast-induced liquefaction. The effectiveness of rammed aggregate piers (RAPs) in mitigating these effects was evaluated. The results showed that RAPs significantly reduced soil deformation and volume changes.
JOURNAL OF SURVEYING ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Silvia Castellaro, Giulia Alessandrini, Giuseppe Musinu
Summary: The role of local geology in controlling ground motion is important, but less attention is commonly given to the seismic station installation. This study examines the effect of housing, foundation, and pillar on seismic records and proposes a working scheme to identify potential installation-related issues. The maximum reliable frequency, below which no soil-structure interaction is expected, is also highlighted as crucial information.
SEISMOLOGICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Marco Meschis, Giordano Teza, Enrico Serpelloni, Letizia Elia, Giovanni Lattanzi, Miriana Di Donato, Silvia Castellaro
Summary: In this study, we investigated crustal deformation in the upper plate of the Ionian Subduction Zone (ISZ) through geodetic measurements and analysis of tectonically deformed marine terraces. The results suggest that crustal extension in this region is primarily accommodated by several normal faults. Furthermore, the study found that uplift rates and fault throw rates in the area may have been relatively stable over time.
Article
Geosciences, Multidisciplinary
S. Trevisani, G. Teza, P. Guth
Summary: Surface roughness is an important concept for analyzing solid earth/planetary surfaces and surface processes. Geostatistical-based tools offer a flexible and interpretable solution for evaluating surface roughness, but they have not been widely adopted. This paper highlights the advantages of geostatistical-based approaches and introduces a new approach for analyzing short-range roughness.
Editorial Material
Remote Sensing
Arianna Pesci, Giordano Teza, Massimo Fabris
Article
Environmental Sciences
Luca Tavasci, Alessandro Lambertini, Davide Donati, Valentina Alena Girelli, Giovanni Lattanzi, Silvia Castellaro, Stefano Gandolfi, Lisa Borgatti
Summary: This paper describes the procedure for building a high-quality 3D model of a rocky pinnacle in the Dolomites, Italy, using Structure from Motion (SfM) techniques. The study compares models of different qualities and point densities to determine the optimal trade-off between processing time and accuracy. The results show that higher quality models allow for more detailed mapping of discontinuities, with some drawbacks due to noise. The paper also discusses the limitations and challenges of performing discontinuity mapping in the different models.
Article
Engineering, Civil
Andrea Calidori, Giacomo Bernagozzi, Silvia Castellaro, Luca Landi, Pier Paolo Diotallevi
Summary: Modal flexibility-based methods are effective for vibration-based structural damage detection. This paper proposes a method for estimating a proportional flexibility-resembling (PFR) matrix without the need for explicit identification of modal parameters. The proposed method avoids the typical two-stage approach of traditional methods.
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING
(2023)
Article
Geosciences, Multidisciplinary
Giordano Teza, Simonetta Cola, Lorenzo Brezzi, Antonio Galgaro
Summary: This paper proposes a method based on continuous wavelet transform (CWT) and convolutional neural network (CNN) to forecast the velocity trend of a landslide. By analyzing rainfall and velocity time series, the method aims to recognize the conditions that induce significant changes in the average velocity of an unstable slope. The method can provide forecasts about the start, persistence, and end of critical events. An application example of the method in a real case is also presented to demonstrate parameter selection and performance.
Article
Geochemistry & Geophysics
Michael W. Asten, Alan Yong, Sebastiano Foti, Koichi Hayashi, Antony J. Martin, William J. Stephenson, John F. Cassidy, Jacie Coleman, Robert Nigbor, Silvia Castellaro, Kosuke Chimoto, Cecile Cornou, Ikuo Cho, Takumi Hayashida, Manuel Hobiger, Chun-Hsiang Kuo, Albert Macau, E. Diego Mercerat, Sheri Molnar, Passakorn Pananont, Marco Pilz, Nakhorn Poovarodom, Esteban Saez, Marc Wathelet, Hiroaki Yamanaka, Toshiaki Yokoi, Don Zhao
Summary: This study evaluates earthquake site effects using geophysical site characterization methods and provides recommendations for preferred arrays and processing methodology for future studies.
JOURNAL OF SEISMOLOGY
(2022)
Article
Geochemistry & Geophysics
Giulia Sgattoni, Silvia Castellaro
Summary: By combining microtremor and gravity data, a unique 3D bedrock model of the Bolzano sedimentary basin was derived, demonstrating the successful interpretation of the stratigraphic model through analyzing ground resonance frequencies and gravity data.
Article
Geosciences, Multidisciplinary
Lorenzo Brezzi, Edoardo Carraro, Davide Pasa, Giordano Teza, Simonetta Cola, Antonio Galgaro
Summary: This study proposes a strategy using the Strength Reduction Method and Smoothed Particle Hydrodynamics model to estimate the unstable volume of potential landslides, successfully predicting the evolution of the Sant'Andrea landslide.
Article
Engineering, Civil
Arianna Pesci, Giordano Teza, Vanja Kastelic, Michele M. C. Carafa
JOURNAL OF SURVEYING ENGINEERING
(2020)