Preprints
Filtering by Subject: Engineering
Point of Care Devices Engaging Green Graphene: An Eco-conscious and Sustainable Paradigm
Published: 2024-04-06
Subjects: Engineering, Medicine and Health Sciences
The healthcare landscape has experienced a profound and irreversible transformation, primarily driven by the emergence of nanomaterial assisted point-of-care (POC) devices. Inclusion of nanomaterials in POC devices have revolutionized healthcare by enabling rapid, on-site diagnostics with minimal infrastructure requirements. Among the materials poised to lead this technological revolution, green [...]
HydroRTC: A Web-Based Data Transfer and Communication Library for Collaborative Data Processing and Sharing in the Hydrological Domain
Published: 2024-03-19
Subjects: Education, Engineering
The exponential growth in data generated by satellites, radars, sensors, and analysis and reanalysis from model outputs for the hydrological domain requires efficient real-time data management and distribution mechanisms. This paper introduces HydroRTC, a web-based data transfer and communication library designed to accelerate large-scale data sharing and analysis. Leveraging next-generation web [...]
Reconciling ultra-emitter detections from two aerial hyperspectral imaging surveys in the Permian Basin
Published: 2024-03-16
Subjects: Engineering
Reducing methane emissions from oil and gas operations is key to minimizing the climate impact of fossil fuels. Two comprehensive aerial studies in 2019 in the Permian Basin revealed excess emissions compared to official estimates. Although both studies suggested high emissions, the estimates from the two aerial surveys seemed to differ greatly: one study measured 153 (+12/-10, 95% CI) metric [...]
Geospatial Modeling and Mapping of Soil Erosion in India
Published: 2024-03-12
Subjects: Civil and Environmental Engineering, Engineering
Soil erosion generally removes the topmost fertile layer of soil, affecting agricultural productivity on a larger scale. As a significant portion of the Indian economy depends on agricultural productivity, granular assessment of the impact of soil erosion becomes critical. However, a national-scale assessment of soil erosion and an impact classification system currently doesn’t exist over India. [...]
Lunar Crater Detection Using YOLOv8 Deep Learning
Published: 2024-03-09
Subjects: Engineering, Physical Sciences and Mathematics
In lunar exploration missions, the detection of lunar craters is essential for scientific inquiry, navigation, and terrain analysis. Conventional approaches for identifying craters depend on labor- and time-intensive manual inspection or semi-automated procedures. An effective and precise way to automate this procedure is through the use of deep learning algorithms. In this brief message, we [...]
Fiber-based super-bridging agents improve flotation and settling during water treatment
Published: 2024-03-07
Subjects: Chemical Engineering, Civil and Environmental Engineering, Engineering
Increasing demand for water poses a major challenge to the water treatment industry. To maintain their floc removal efficiency, water treatment plants are expected to require larger separation units and use more chemicals, namely, coagulants and flocculants. Conventional physicochemical treatments produce flocs that are limited in size, which limits floc removal efficiency via gravitation-based [...]
EarthObsNet: A Comprehensive Benchmark Dataset for Data-Driven Earth Observation Image Synthesis
Published: 2024-03-03
Subjects: Engineering
Remote Sensing imagery serves as an important data source for Earth surface monitoring and surface processes studies. It is highly likely that RS imagery will become more and more indispensable in the future due to its high scalability and compatibility with data-driven models and ever-evolving software and hardware that become increasingly good at processing large datasets. Although its [...]
Landslide Regime Shift Detector (LRSD) for Landslide Early Warning Systems
Published: 2024-02-18
Subjects: Engineering
This research presents the development of a Landslide Regime Shift Detector (LRSD) which integrates advanced prediction models to provide insights into regime shifts within substantial landslide bodies. Our primary focus lies in the identification of these shifts, emphasizing that LRSD does not merely detect accelerations but discerns exceptional accelerations, defined in our context as [...]
A hydromechanical EFG-based Model for Numerical Simulation of Land Subsidence Induced by Groundwater Extraction in Anisotropic Aquifers
Published: 2024-02-17
Subjects: Engineering
This study presents a coupled hydromechanical element-free Galerkin (EFG) model to simulate land subsidence induced by groundwater withdrawal. The EFG algorithm was validated with unsaturated hydraulic and hydromechanical benchmark problems, showing satisfactory alignment with finite element method (FEM) and theoretical results. We inves-tigated the effects of groundwater pumping on land [...]
A numerical investigation on the suspended sediment dynamics and sediment budget in the Mekong Delta
Published: 2024-02-17
Subjects: Engineering
Fluvial sediment supply towards the coast has been the subject of extensive research. Important aspects relate to the impact of sediment retaining hydropower dams, potential delta progradation, coastal sediment supply and delta vulnerability to sea level rise. Once validated, process-based models provide a valuable tool to address these aspects and offer detailed information on sediment pathways, [...]
Towards an Open and Integrated Cyberinfrastructure for River Morphology Research in the Big Data Era
Published: 2024-02-16
Subjects: Computer and Systems Architecture, Computer Engineering, Computer Sciences, Databases and Information Systems, Engineering, Environmental Education, Environmental Engineering, Geomorphology, Hydrology, Systems and Communications, Water Resource Management
The objective of this paper is to present the initial illustration of a cyberinfrastructure named the River MORPhology Information System (RIMORPHIS) that addresses the current limitations related to river morphology data and tools. A new specification for data and semantics on river morphology datasets has been developed to support the web-based platform for discovering and visualization of [...]
Exponentially cascaded cross-sectional volume estimates from elevation data
Published: 2024-02-13
Subjects: Civil and Environmental Engineering, Engineering
The relationship between discharges and flow heights is a critical component of hydraulic modelling, often carried out involving data on the elevation profiles of the river bed. However, obtaining and using cross-sectional profile data can be resource intensive. Methods for profile estimation from rasterized elevation and bathymetry can help overcome this. In this paper, an efficient algorithm [...]
Mechanisms and seismological signatures of rupture complexity induced by fault damage zones in fully-dynamic earthquake cycle models
Published: 2024-02-10
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Physical Sciences and Mathematics
Damage zones are common around faults, but their effects on earthquake mechanics are still incompletely understood. Here, we investigate how damage affects rupture patterns, source time functions and ground motions in 2D fully-dynamic cycle models. We find that back-propagating rupture fronts emerge in large faults and can be triggered by residual stresses left by previous ruptures or by [...]
Study on Serpentinites and the Consequence of the Misuse of Natural Stone in Buildings for Construction.
Published: 2024-02-05
Subjects: Engineering
Some rocks are very attractive as ornamental stone, but not all of them accomplish the needed requirements to be used in construction. Serpentinite can be an appealing rock, very commonly used as dimension stone. However, not all serpentinites can be used in such a way. The most widely used commercial serpentinite comes from Pakistan and India (i.e., Rajasthan Green), but other countries also [...]
THE IMPORTANCE OF PRESERVING SMALL HERITAGE SITES. THE CASE OF LA TUIZA SANCTUARY (ZAMORA, SPAIN).
Published: 2024-01-30
Subjects: Engineering
Granite has been one of the most used natural stones to build heritage for centuries. This is obviously the case when granite is the main regional rock, like the case in the north of the Iberian Peninsula. The sanctuary of La Tuiza in Lubian (Zamora, northwest of Spain) was built with the granite of Calabor. This sanctuary dates from the 18th century, and was declared as Cultural Interest [...]