Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Diethelm Johannsmann"'
Publikováno v:
Advanced Sensor Research, Vol 3, Iss 9, Pp n/a-n/a (2024)
Abstract The development and application of Electrochemical Quartz Crystal Microbalance (EQCM) sensing to study metal electroplating, especially for energy storage purposes, are reviewed. The roles of EQCM in describing electrode/electrolyte interfac
Externí odkaz:
https://doaj.org/article/f715f001bda9417f82d217a80a80dece
Publikováno v:
Results in Physics, Vol 45, Iss , Pp 106219- (2023)
Fouling at a hot reactor wall during emulsion polymerization was studied in-situ with a quartz crystal microbalance with dissipation monitoring (QCM-D). Transient maxima in resonance bandwidth were observed, which are typically interpreted as the sig
Externí odkaz:
https://doaj.org/article/9624402dc58142f08bd67e6b67a406a0
Effect of Noise on Determining Ultrathin-Film Parameters from QCM-D Data with the Viscoelastic Model
Publikováno v:
Sensors, Vol 23, Iss 3, p 1348 (2023)
Quartz crystal microbalance with dissipation monitoring (QCM-D) is a well-established technique for studying soft films. It can provide gravimetric as well as nongravimetric information about a film, such as its thickness and mechanical properties. T
Externí odkaz:
https://doaj.org/article/df1a1392c4214e3e9ad005d1a75f2f5a
Autor:
Diethelm Johannsmann
Publikováno v:
Sensing and Bio-Sensing Research, Vol 11, Iss , Pp 86-93 (2016)
Colloidal spheres attached to a quartz crystal microbalance (QCM) produce the so-called “coupled resonances”. They are resonators of their own, characterized by a particle resonance frequency, a resonance bandwidth, and a modal mass. When the fre
Externí odkaz:
https://doaj.org/article/fd8a1e7739e240709d9fa66b02590b43
Publikováno v:
Sensors, Vol 21, Iss 10, p 3490 (2021)
The response of the quartz crystal microbalance (QCM, also: QCM-D for “QCM with Dissipation monitoring”) to loading with a diverse set of samples is reviewed in a consistent frame. After a brief introduction to the advanced QCMs, the governing eq
Externí odkaz:
https://doaj.org/article/318ee016141f498b8e72c9344a3b6732
Autor:
Jaime Rodriguez-López, Pedro Castro, Juan de Vicente, Diethelm Johannsmann, Luis Elvira, Jose R. Morillas, Francisco Montero de Espinosa
Publikováno v:
Sensors, Vol 15, Iss 12, Pp 30443-30456 (2015)
This work proposes the use of quartz crystal microbalances (QCMs) as a method to analyze and characterize magnetorheological (MR) fluids. QCM devices are sensitive to changes in mass, surface interactions, and viscoelastic properties of the medium co
Externí odkaz:
https://doaj.org/article/d17d3030935049368b82b0d316e93aa7
Autor:
Christian Leppin, Sven Hampel, Frederick Sebastian Meyer, Arne Langhoff, Ursula Elisabeth Adriane Fittschen, Diethelm Johannsmann
Publikováno v:
Sensors, Vol 20, Iss 20, p 5915 (2020)
A quartz crystal microbalance (QCM) is described, which simultaneously determines resonance frequency and bandwidth on four different overtones. The time resolution is 10 milliseconds. This fast, multi-overtone QCM is based on multi-frequency lockin
Externí odkaz:
https://doaj.org/article/7cb2a5b7f3264b47b10bb7da1cad30a5
Autor:
Robert Kowarsch, Yuriy Suhak, Lucia Cortina Eduarte, Mohammad Mansour, Frederick Meyer, Astrid Peschel, Holger Fritze, Christian Rembe, Diethelm Johannsmann
Publikováno v:
Sensors, Vol 20, Iss 9, p 2535 (2020)
The operation of the quartz crystal microbalance (QCM) in liquids is plagued by small flexural admixtures to the thickness-shear deformation. The resonator surface moves not only in the transverse direction, but also along the surface normal, thereby
Externí odkaz:
https://doaj.org/article/0b5b8a5972b14ad5adc1fd46fde1589b
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 6, Iss 1, Pp 845-856 (2015)
The stiffness of micron-sized sphere–plate contacts was studied by employing high frequency, tangential excitation of variable amplitude (0–20 nm). The contacts were established between glass spheres and the surface of a quartz crystal microbalan
Externí odkaz:
https://doaj.org/article/419a6c416fe14e6981fee1559625a256
Publikováno v:
Sensing and Bio-Sensing Research, Vol 11, Iss , Pp 59- (2016)
Externí odkaz:
https://doaj.org/article/6f2e984a796e4b5f96551ffd56f0559f