Article
Engineering, Marine
Yanwei Zhai, Weilin Xu, Jing Luo, Jianbo Li
Summary: This paper studies the interaction between cavitation bubbles and different elastic boundaries from the perspective of microjets and shock waves. The elastic deformation characteristics of elastic materials under the penetration of microjets are found to be the main influencing factors of cavitation erosion.
Article
Acoustics
Fabian Reuter, Carsten Deiter, Claus -Dieter Ohl
Summary: This study reveals the mechanism behind energy focusing during the non-spherical collapse of cavitation bubbles, leading to the erosion of hardened metals. Using high-speed imaging and shockwave recording, the conditions for this focusing process and its damage to solids are resolved.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Mechanics
Ulisses J. Gutierrez-Hernandez, Fabio De Colle, Claus-Dieter Ohl, Pedro A. Quinto-Su
Summary: In this work, a Fresnel-lens-inspired method is proposed and demonstrated for focusing multiple laser-induced shock waves through time-delay superposition at arbitrary locations. The method has been successfully demonstrated experimentally, showing effectiveness under specific geometric conditions and good agreement with simulation results.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Mohammad Khavari, Abhinav Priyadarshi, Andrew Hurrell, Koulis Pericleous, Dmitry Eskin, Iakovos Tzanakis
Summary: This study investigates the shock wave pressures emitted by cavitating bubbles in water under ultrasonic excitation, revealing a resonance peak at a narrow range of frequencies and suggesting its association with shock wave emissions from collapsing bubbles. Results show an increasing pressure shielding effect with higher input power.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Ulisses J. Gutierrez-Hernandez, Hendrik Reese, Claus-Dieter Ohl, Pedro A. Quinto-Su
Summary: Researchers have discovered that acoustic cavitation at high frequencies can be achieved through wave propagation in a solid medium. By nucleating cavitation bubbles at nano-sized fractures on a glass substrate and driving their expansion with a leaky Rayleigh wave, and their collapse with a trailing shock wave, the lifetime of the bubbles can be controlled. Experimental results align with simulation models.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Mechanics
Wangxia Wu, Qingquan Liu, Bing Wang
Summary: The study numerically investigates high-speed droplet impingement on typical curved surfaces to analyze complex wave structures and cavitation. The analysis includes the evolution of confined shock waves, cavities, and pressure distribution on concave, convex, and flat surfaces, showing different impacts on shock wave strength and cavitation behavior.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Jing Luo, Weilin Xu, Boo Cheong Khoo
Summary: The study found that the relative distance and size between the cavitation bubble and air bubble play a dominant role in the stratification effect exerted by the air bubble on the shock wave. When the two bubbles merge, the energy and pressure peak of the shock wave decrease significantly to less than 40% of the original values.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Xiao-Xuan Liang, Norbert Linz, Sebastian Freidank, Gunther Paltauf, Alfred Vogel
Summary: The dynamics of spherical laser-induced cavitation bubbles in water were investigated using experimental techniques and numerical simulations. The study revealed the oscillation characteristics, gas content, and shock wave emission of the bubbles, and analyzed the motion velocity of the bubble wall and energy distribution.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Acoustics
Dilip Prasad
Summary: This study employs an asymptotic approach to investigate the effects of dispersion on acoustic disturbances propagating through cylindrical ducts. Linear potential perturbations are found to be weakly dispersive in the high-frequency limit, with additional dispersive effects from an acoustic liner. The inclusion of weak nonlinearity along with dispersion results in more complex waveforms.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Biochemistry & Molecular Biology
Po-Yen Chen, Jai-Hong Cheng, Zong-Sheng Wu, Yao-Chi Chuang
Summary: Shock waves have been widely applied in various fields of medical science. Low energy extracorporeal shock wave (LESW) therapy has been used in urology to treat diseases such as chronic prostatitis, and it enhances the expression of growth factors and inhibits inflammatory molecules, showing promise as an effective treatment method for various diseases.
Article
Geosciences, Multidisciplinary
I. Y. Vasko, F. S. Mozer, S. D. Bale, A. Artemyev
Summary: This study presents an analysis of electrostatic waves observed near the quasi-perpendicular Earth's bow shock by the Magnetospheric Multiscale spacecraft. The analysis reveals that these electrostatic waves have large amplitudes and can propagate almost perpendicular to the local magnetic field. The results suggest that these waves may strongly affect the dynamics of electrons in collisionless shocks.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Astronomy & Astrophysics
Tsun Hin Navin Tsung, S. Peng Oh, Yan-Fei Jiang
Summary: Recently, it has been found that cosmic rays can drive galactic winds and small-scale processes can affect global wind properties. By studying the effects of phase-shifted cosmic ray forces and cosmic ray heating on sound waves, it has been discovered that non-linear sound wave growth can lead to a series of propagating shocks and create cosmic ray bottlenecks. The presence of bottlenecks and their interaction with gas pressure gradients can significantly impact mass outflow rates and induce thermal instability and observable shocks on scales similar to kpc.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Zenan Wang, Jun Tian, Ying Hu, Jun Wei
Summary: A device based on surface acoustic wave is developed to achieve precise and controllable localized sonoporation by selectively manipulating and oscillating microbubbles. The device consists of a pair of microbubble positioning slant-finger interdigital transducers (SFITs) to move a selected microbubble in a two-dimensional plane, and another narrow-frequency-band SFIT for local cavitation control of the same microbubble. By continuously adjusting the input frequency and relative phase, a microbubble can be transported orthogonal to and along the acoustic transmission path.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Mechanics
Mads Peter Sorensen, Peter Leth Christiansen
Summary: A computational investigation was conducted on the propagation of weakly nonlinear model of acoustical plane waves in a cylindrical tube. Oscillating shock waves were observed in the weakly nonlinear model when the driving frequency was slightly higher than the first resonance frequency of the simple wave equation. Two counter propagating shock waves were observed in the tube when the driving frequency was slightly above the second harmonic frequency of the simple linear wave equation. The article also includes a Hamiltonian energy analysis, demonstrating the balance between the energy input and the dissipation of the wave dynamics.
Article
Materials Science, Multidisciplinary
A. A. Mamun, B. E. Sharmin, N. K. Tamanna
Summary: This study investigates the effects of degenerate plasma temperature and stationary heavy nucleus species on the basic features of cylindrical and spherical nucleus-acoustic shock waves in a warm degenerate plasma system. Reductive perturbation method and special stretched coordinates are used, with the observation that the kinematic viscous force in the light nucleus fluid is the sole source of dissipation. The basic features of monotonic shock waves are significantly altered by the influence of degenerate plasma temperature, ultra-relativistically degenerate electron species, and stationary heavy nucleus species.
RESULTS IN PHYSICS
(2021)
Article
Mechanics
J. J. Carcamo-Vega, M. R. Branes, A. M. Loske, M. M. Campos-Vallette
Article
Public, Environmental & Occupational Health
Christopher R. Stephens, Jonathan F. Easton, Adriana Robles-Cabrera, Ruben Fossion, Lizbeth de la Cruz, Ricardo Martinez-Tapia, Antonio Barajas-Martinez, Alejandro Hernandez-Chavez, Juan Antonio Lopez-Rivera, Ana Leonor Rivera
FRONTIERS IN PUBLIC HEALTH
(2020)
Article
Biophysics
Carlos M. Valdemar-Aguilar, Ravichandran Manisekaran, Remy Avila, Vicente D. Compean-Garcia, Rufino Nava-Mendoza, Luz M. Lopez-Marin
Article
Physiology
Antonio Barajas Martinez, Jonathan F. Easton, Ana Leonor Rivera, Ricardo Jesus Martinez-Tapia, Lizbeth de la Cruz, Adriana Robles-Cabrera, Christopher R. Stephens
FRONTIERS IN PHYSIOLOGY
(2020)
Article
Polymer Science
L. E. Rojas-Martinez, C. G. Flores-Hernandez, L. M. Lopez-Marin, A. L. Martinez-Hernandez, S. B. Thorat, C. D. Reyes Vasquez, A. E. Del Rio-Castillo, C. Velasco-Santos
EUROPEAN POLYMER JOURNAL
(2020)
Article
Physiology
Antonio Barajas-Martinez, Elizabeth Ibarra-Coronado, Martha Patricia Sierra-Vargas, Ivette Cruz-Bautista, Paloma Almeda-Valdes, Carlos A. Aguilar-Salinas, Ruben Fossion, Christopher R. Stephens, Claudia Vargas-Dominguez, Octavio Gamaliel Atzatzi-Aguilar, Yazmin Debray-Garcia, Rogelio Garcia-Torrentera, Karen Bobadilla, Maria Augusta Naranjo Meneses, Dulce Abril Mena Orozco, Cesar Ernesto Lam-Chung, Vania Martinez Garces, Octavio A. Lecona, Arlex O. Marin-Garcia, Alejandro Frank, Ana Leonor Rivera
Summary: Current research in physiology focuses on molecular mechanisms underlying biological functioning and relationships between physiological variables, yet translating isolated variables into organism functions as a whole is challenging. To create a useful representation of physiology, interactions between diverse physiological components need to be considered. Utilizing Complex Inference Networks built from biomarkers offers an efficient and visually understandable systems biology approach that may help in quantifying properties of biological systems for health and disease determination.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Multidisciplinary Sciences
Ana Leonor Rivera, Bruno Estanol, Julio J. Macias-Gallardo, Guillermo Delgado-Garcia, Ruben Fossion, Alejandro Frank, Gonzalo M. Torres-Villalobos
Summary: Achalasia is a disease characterized by the inability to relax the esophageal sphincter, potentially representing a more generalized disturbance of the autonomic nervous system, which may lead to irregularities in heart rate and blood pressure.
Article
Physiology
Antonio Barajas-Martinez, Elizabeth Ibarra-Coronado, Ruben Fossion, Juan Claudio Toledo-Roy, Vania Martinez-Garces, Juan Antonio Lopez-Rivera, Geraldine Tello-Santoyo, Rusland D. Lavin, Jose Luis Gomez, Christopher R. Stephens, Carlos A. Aguilar-Salinas, Bruno Estanol, Nimbe Torres, Armando R. Tovar, Osbaldo Resendis-Antonio, Marcia Hiriart, Alejandro Frank, Ana Leonor Rivera
Summary: Within human physiology, there are systemic interactions that couple physiological variables to maintain homeostasis, with differences in network correlations, modularization, and small-world indices between men and women. Men's networks are more vulnerable to directed attacks, while women's networks are more resilient. In terms of heart rate variability, young men show significantly higher autocorrelation and variability compared to young women, with these differences attenuating in older age groups. Women display a higher number of associations between variables in the physiological system, implying redundant control mechanisms and less variability over time compared to men, constituting a more resilient system.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Chemistry, Physical
Mirle Pena Ortega, Luz M. Lopez-Marin, Blanca Millan-Chiu, Patricia Manzano-Gayosso, Laura Susana Acosta-Torres, Rene Garcia-Contreras, Ravichandran Manisekaran
Summary: This study successfully synthesized stable cationic silver nanoparticles using a facile aqueous phase process, which exhibited antimicrobial activity against Candida species, especially in inhibiting biofilm formation.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Nutrition & Dietetics
Tauqeerunnisa Syeda, Monica Sanchez-Tapia, Itzel Orta, Omar Granados-Portillo, Lizbeth Perez-Jimenez, Juan-de-Dios Rodriguez-Callejas, Samuel Toribio, Maria-del-Carmen Silva-Lucero, Ana-Leonor Rivera, Armando R. Tovar, Nimbe Torres, Claudia Perez-Cruz
Summary: Ingestion of bioactive foods can improve gut microbiota dysbiosis, reduce fatty liver, and cognitive damage in obese rats, and also has anti-inflammatory and neuroprotective effects.
Article
Multidisciplinary Sciences
Arlex Marin-Garcia, Ruben Fossion, Markus F. Mueller, Wady Rios-Herrera, Ana Leonor Rivera
Summary: Both parametric and non-parametric approaches to time-series analysis have advantages and disadvantages. Parametric methods can yield inconsistent results, while non-parametric methods are more widely applicable but sensitive to noise and low density data. Parametric methods are crucial in studying healthy and diseased populations when dealing with periodic phenomena.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Review
Pharmacology & Pharmacy
Ravichandran Manisekaran, Rene Garcia-Contreras, Aruna-Devi Rasu Chettiar, Paloma Serrano-Diaz, Christian Andrea Lopez-Ayuso, Ma Concepcion Arenas-Arrocena, Genoveva Hernandez-Padron, Luz M. Lopez-Marin, Laura Susana Acosta-Torres
Summary: Researchers in cancer nanomedicine are exploring a revolutionary multifaceted carrier for treatment and diagnosis, resulting in the proposal of various drug cargos or magic bullets in this past decade. However, challenges prevent many nano-based complexes from entering the final stages and being accessible to patients. The use of 2D nanosheets, such as graphene, has generated extensive interest for biomedical applications due to their unique properties.
Article
Physiology
Antonio Barajas-Martinez, Roopa Mehta, Elizabeth Ibarra-Coronado, Ruben Fossion, Vania J. Martinez Garces, Monserrat Ramirez Arellano, Ibar A. Gonzalez Alvarez, Yamilet Viana Moncada Bautista, Omar Y. Bello-Chavolla, Natalia Ramirez Pedraza, Bethsabel Rodriguez Encinas, Carolina Isabel Perez Carrion, Maria Isabel Jasso avila, Jorge Carlos Valladares-Garcia, Pablo Esteban Vanegas-Cedillo, Diana Hernandez Juarez, Arsenio Vargas-Vazquez, Neftali Eduardo Antonio-Villa, Paloma Almeda-Valdes, Osbaldo Resendis-Antonio, Marcia Hiriart, Alejandro Frank, Carlos A. Aguilar-Salinas, Ana Leonor Rivera
Summary: This study aims to determine the differences in physiological variables between the elderly and men, as well as the variables associated with fatal outcomes in young men among COVID-19 patients. The study found that the topological network properties of physiological systems become disrupted in disease, and deceased young males exhibit anthropometric, metabolic, inflammatory, and pulmonary cluster interaction.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Microbiology
Daniel Larranaga-Ordaz, Miguel A. Martinez-Maldonado, Blanca E. Millan-Chiu, Francisco Fernandez, Eduardo Castano-Tostado, Miguel angel Gomez-Lim, Achim M. Loske
Summary: This study investigated the effects of shock waves on Aspergillus niger and found that they did not significantly affect the viability and germination of conidia. However, increased aggressiveness of the treatment led to changes in certain genes and significant modifications to the cell wall. Under optimized conditions, shock waves could be used for various biotechnological applications.
Article
Biotechnology & Applied Microbiology
Daniela Torres-Ortiz, Guadalupe Garcia-Alcocer, Achim M. Loske, Francisco Fernandez, Edgardo Becerra-Becerra, Rodrigo Esparza, Marlen Alexis Gonzalez-Reyna, Miriam Estevez
Summary: Green chemistry was utilized to synthesize gold nanoparticles using Amphipterygium adstringens extracts as a medium. Ultrasound and shock wave-assisted extraction were employed to obtain green ethanolic and aqueous extracts. Gold nanoparticles with different sizes were obtained using different extraction methods. The nanoparticles were characterized using microscopic and spectroscopic techniques. The cytotoxic effects of the gold nanoparticles on leukemia cells were evaluated and compared to a standard drug vincristine.
BIOENGINEERING-BASEL
(2023)