Zobrazeno 1 - 10
of 146
pro vyhledávání: '"E. Schimpf"'
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
Physical Chemistry Chemical Physics. 25:6790-6796
We present a self-consistent model rooted in nonequilibrium thermodynamics for defining concentration gradients in the electron/hole pairs and electric-field gradients in an intrinsic semiconductor created upon exposure to a temperature gradient.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfe41d6616bd3a0cec169876040d7a51
https://doi.org/10.1039/d2cp05065j
https://doi.org/10.1039/d2cp05065j
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
Physical Chemistry Chemical Physics. 24:27432-27440
We extend our nonequilibrium thermodynamic model of thermodiffusion in binary systems to multi-component mixtures. The fundamental parameter is the difference in molecular entropy of the components, which can be obtained in one of three ways; (i) der
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f99160fc45b0c08e33f038f44adf60e9
https://doi.org/10.1039/d2cp03914a
https://doi.org/10.1039/d2cp03914a
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
The journal of physical chemistry. B. 126(22)
We present a model that explains variance in the thermodiffusion of hydrocarbon isomers in binary liquid mixtures. The model relies on material transport equations for binary nonisothermal liquid systems that were derived through a nonequilibrium the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56dcf202e243dc42e333f4fbf30d1faf
https://pubmed.ncbi.nlm.nih.gov/35608999
https://pubmed.ncbi.nlm.nih.gov/35608999
Autor:
Martin E. Schimpf, Semen N. Semenov
Publikováno v:
The journal of physical chemistry. B. 125(27)
The contribution of the stochastic thermodiffusion to the diffusion enhancement is studied. The thermodiffusion of particles suspended in a liquid may hold place when the spontaneous endo- or exothermal nanoscale events similar to elementary acts of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d853e091700c0a18cf303132ea96cbfb
https://pubmed.ncbi.nlm.nih.gov/34228453
https://pubmed.ncbi.nlm.nih.gov/34228453
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
The journal of physical chemistry. B. 124(29)
We consider the spontaneous redistribution of thermophoretically active particles suspended in a thin film of liquid, made to absorb energy and transmit it in the form of heat to the surrounding medium. When the opposing boundaries to the thin dimens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3cbb195fa7a0d4323de1ca22de34e0d
https://pubmed.ncbi.nlm.nih.gov/32598153
https://pubmed.ncbi.nlm.nih.gov/32598153
Autor:
Martin E. Schimpf, Semen N. Semenov
Publikováno v:
The Journal of Physical Chemistry C. 121:22621-22627
The deterministic mechanism of directed particle motion in a symmetric periodic potential with harmonic time modulation is theoretically examined. We show that directed particle motion can be established with a symmetric potential in the absence of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f107bab2907d65421cc60acbe2677184
https://doi.org/10.1021/acs.jpcc.7b06050
https://doi.org/10.1021/acs.jpcc.7b06050
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
The 5th International Electronic Conference on Entropy and Its Applications.
We analyze existing models for material transport in non-isothermal non-electrolyte liquid mixtures that utilize non-equilibrium thermodynamics. Many different sets of equations for material have been derived that, while based on the same fundamental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22a74e2f4332e70914f56d36a4dbd99b
https://doi.org/10.3390/ecea-5-06680
https://doi.org/10.3390/ecea-5-06680
Thermoosomosis in microfluidic devices containing a temperature gradient normal to the channel walls
Autor:
Semen N. Semenov, Martin E. Schimpf
Publikováno v:
The European Physical Journal E. 42
We analyze a microfluidic pump from the literature that utilizes a flat channel with boundary walls at different temperatures and tilted elongated pillars within in order to construct an adequate theory for designing devices in which the temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f77af63f2f688ac48a95439f55f4308b
https://doi.org/10.1140/epje/i2019-11914-8
https://doi.org/10.1140/epje/i2019-11914-8
Autor:
Martin E. Schimpf
Publikováno v:
Ewing’s Analytical Instrumentation Handbook, Fourth Edition ISBN: 9781315118024
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bcabbb50e9d521fd65d93d497d616ed
https://doi.org/10.1201/9781315118024-27
https://doi.org/10.1201/9781315118024-27
Autor:
Martin E. Schimpf, Semen N. Semenov
Publikováno v:
The Journal of Physical Chemistry C. 120:22597-22604
We use methods of physicochemical hydrodynamics to study the working principles of a thermophoretic microgear in which an axially symmetric temperature gradient causes rotational movement of a heated rotor in the shape of a pinion confined in a cylin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24e0d4a118d87644cd3cd5cbfdff2728
https://doi.org/10.1021/acs.jpcc.6b05525
https://doi.org/10.1021/acs.jpcc.6b05525