Zobrazeno 1 - 10
of 393
pro vyhledávání: '"Claus‐Dieter Ohl"'
Publikováno v:
Ultrasonics Sonochemistry, Vol 110, Iss , Pp 107023- (2024)
Laser-induced cavitation bubbles offer precise control of the flow in space and time, but they are rarely used for the mechanical and chemical processing of liquids. Instead, strong acoustic fields are commonly used to nucleate and drive cavitation b
Externí odkaz:
https://doaj.org/article/b777aae425eb401494bf6c4e31494213
Publikováno v:
Ultrasonics Sonochemistry, Vol 109, Iss , Pp 107011- (2024)
Surface-attached micro- and nanobubbles are known for their resistance to external forces. This study experimentally and theoretically investigates their response to strong ultrasonic fields. Surface-attached micro- and nanobubbles with contact radii
Externí odkaz:
https://doaj.org/article/61446d220d944391bf6508f477ebec09
Autor:
Jaka Mur, Alexander Bußmann, Thomas Paula, Stefan Adami, Nikolaus A. Adams, Rok Petkovsek, Claus-Dieter Ohl
Publikováno v:
Ultrasonics Sonochemistry, Vol 112, Iss , Pp 107185- (2025)
We investigate experimentally and numerically the interaction between a spherical cavitation bubble and a wall-bounded toroidal cavitation bubble. We demonstrate that shock wave focusing following toroidal bubble initiation induces the formation of m
Externí odkaz:
https://doaj.org/article/2751c13b2d684ebea8b06e76ebede178
Autor:
Matevž Dular, Guillermo Enrique Barragan Montalvo, Marko Hočevar, Lovrenc Novak, Claus Dieter Ohl, Martin Petkovsek
Publikováno v:
Ultrasonics Sonochemistry, Vol 107, Iss , Pp 106930- (2024)
Cavitation erosion is one of the most severe problems encountered in hydraulic turbomachinery. When testing the materials, the engineers usually rely on standardized procedures. The most common one being the vibratory ASTM G-32 test, which offers two
Externí odkaz:
https://doaj.org/article/767581a834a94fa09d21fd4e40d05b8e
Autor:
Jörn Hülsmann, Theresa Fraune, Baratha Dodawatta, Fabian Reuter, Martin Beutner, Viktoria Beck, Matthias Hackert-Oschätzchen, Claus Dieter Ohl, Katja Bettenbrock, Gabor Janiga, Jens Wippermann, Max Wacker
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Revascularization via coronary artery bypass grafting (CABG) to treat cardiovascular disease is established as one of the most important lifesaving surgical techniques worldwide. But the shortage in functionally self-adaptive autologous arte
Externí odkaz:
https://doaj.org/article/b799e40fa2b64bca8d6da430d3dc931b
Autor:
Hao Wu, Yongzhen Jin, Yuanyuan Li, Hao Zheng, Xiaochen Lai, Jiaming Ma, Claus-Dieter Ohl, Haixia Yu, Dachao Li
Publikováno v:
Ultrasonics Sonochemistry, Vol 104, Iss , Pp 106810- (2024)
The role of acoustic cavitation in various surface cleaning disciplines is important. However, the physical mechanisms underlying acoustic cavitation-induced surface cleansing are poorly understood. This is due to the combination of microscopic and u
Externí odkaz:
https://doaj.org/article/e3dcb1796d7d43e3a4920a648ba1d50e
Autor:
Hao Wu, Cheng Zhou, Yuanyuan Li, Yongzhen Jin, Xiaochen Lai, Claus-Dieter Ohl, Dachao Li, Haixia Yu
Publikováno v:
Ultrasonics Sonochemistry, Vol 101, Iss , Pp 106690- (2023)
As a safe and effective method for systemic transdermal drug delivery (TDD), sonophoresis has drawn much attention from researchers. Despite numerous studies confirming cavitation as the main reason for sonophoresis, the effect skin has on cavitation
Externí odkaz:
https://doaj.org/article/fdbf3e4a9b434727a903a765dcf3e1d6
Autor:
Ulisses J. Gutiérrez‐Hernández, Hendrik Reese, Fabian Reuter, Claus‐Dieter Ohl, Pedro A. Quinto‐Su
Publikováno v:
Advanced Physics Research, Vol 2, Iss 10, Pp n/a-n/a (2023)
Abstract A method is presented to carve into a glass submerged in water with laser‐induced surface and shock waves. It starts with an elliptic wave source that launches an elliptically converging Rayleigh and shock wave. At the wave focus a single
Externí odkaz:
https://doaj.org/article/a4df4e009479489282379ca5ba04e422
Publikováno v:
Ultrasonics Sonochemistry, Vol 98, Iss , Pp 106530- (2023)
The interaction of surface acoustic waves (SAWs) with liquids enables the production of aerosols with adjustable droplet sizes in the micrometer range expelled from a very compact source. Understanding the nonlinear acousto-hydrodynamics of SAWs with
Externí odkaz:
https://doaj.org/article/325f556e1efb4f0d87fa41e648222693
Autor:
Juan Manuel Rosselló, Claus-Dieter Ohl
Publikováno v:
Ultrasonics Sonochemistry, Vol 94, Iss , Pp 106321- (2023)
We have demonstrated the production of laser bulk nanobubbles (BNB) with ambient radii typically below 500 nm. The gaseous nature of the nanometric objects was confirmed by a focused acoustic pulse that expands the gas cavities to a size that can be
Externí odkaz:
https://doaj.org/article/9e116c79ede04f0090436d5ad4be1b0d