Characterization of moderate ash‐and‐gas explosions at Santiaguito volcano, Guatemala, from infrasound waveform inversion and thermal infrared measurements [PDF]
Geophysical Research Letters, 2016 The rapid discharge of gas and rock fragments during volcanic eruptions generates acoustic infrasound. Here we present results from the inversion of infrasound signals associated with small and moderate gas‐and‐ash explosions at Santiaguito volcano ...
S. De Angelis +7 more
doaj +9 more sources
Insecticidal Activity and Chemical Composition of the Morinda lucida Essential Oil against Pulse Beetle Callosobruchus maculatus [PDF]
The Scientific World Journal, 2014 Insecticidal activity of essential oil extracted from Morinda lucida was tested on pulse beetle Callosobruchus maculatus, which is a pest that causes serious damage to several pulses.
Moses S. Owolabi +8 more
doaj +3 more sources
Antioxidant Activity and Kinetic Characterization of Chlorella vulgaris Growth under Flask-Level Photoheterotrophic Growth Conditions [PDF]
Molecules, 2022 C. vulgaris is a unicellular microalgae, whose growth depends on the conditions in which it is found, synthesizing primary and secondary metabolites in different proportions.
Jesús Alberto Coronado-Reyes +3 more
doaj +2 more sources
Disruption of Long-Term Effusive-Explosive Activity at Santiaguito, Guatemala [PDF]
Frontiers in Earth Science, 2019 Rapid transitions in eruptive activity during lava dome eruptions pose significant challenges for monitoring and hazard assessment. A comprehensive understanding of the dynamic evolution of active lava dome systems requires extensive sets of multi ...
Oliver D. Lamb +15 more
doaj +11 more sources
Source Mechanism of Seismic Explosion Signals at Santiaguito Volcano, Guatemala: New Insights From Seismic Analysis and Numerical Modeling [PDF]
Frontiers in Earth Science, 2021 Volcanic activity at the Santiaguito dome complex (Guatemala) is characterized by lava extrusion interspersed with small, regular, gas-and-ash explosions that are believed to result from shallow magma fragmentation; yet, their triggering mechanisms ...
Alicia Rohnacher +8 more
doaj +5 more sources
Chemical Characterization of Plant Extracts and Evaluation of their Nematicidal and Phytotoxic Potential [PDF]
Molecules, 2021 Nacobbus aberrans ranks among the “top ten” plant-parasitic nematodes of phytosanitary importance. It causes significant losses in commercial interest crops in America and is a potential risk in the European Union.
Raúl Velasco-Azorsa +9 more
doaj +2 more sources
Detecting multiscale periodicity from the secular effusive activity at Santiaguito lava dome complex (Guatemala) [PDF]
Earth, Planets and Space, 2022 Santiaguito, Guatemala, represents one of the best cases of active lava dome complex in the world, producing lava flow effusion, weak explosive activity, and cycles of lava dome extrusion over varying timescales. Since the inception in 1922, it has shown
Silvia Massaro +4 more
doaj +3 more sources
Quantification of ash sedimentation dynamics through depolarisation imaging with AshCam [PDF]
Scientific Reports, 2018 Even modest ash-rich volcanic eruptions can severely impact a range of human activities, especially air travel. The dispersal of ash in these eruptions depends critically on aggregation and sedimentation processes – however these are difficult to ...
Ben Esse +9 more
doaj +2 more sources
Geodesic Vulnerability Approach for Identification of Critical Buses in Power Systems
Journal of Modern Power Systems and Clean Energy, 2021 One of the most critical issues in the evaluation of power systems is the identification of critical buses. For this purpose, this paper proposes a new methodology that evaluates the substitution of the power flow technique by the geodesic vulnerability ...
Jesus Beyza +3 more
doaj +1 more source
Numerical Simulation of Wire Rod Cooling in Eutectoid Steel under Forced-Convection
Metals, 2021 A coupled thermal-microstructural simulation model was developed to estimate the thermal history in a eutectoid steel wire rod under continuous cooling and forced-convection.
Monserrat Sofía López-Cornejo +4 more
doaj +1 more source