SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Swenson Jan 1966) "

Sökning: WFRF:(Swenson Jan 1966)

  • Resultat 1-10 av 129
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  •  
2.
  •  
3.
  • Bergman, Rikard, 1966, et al. (författare)
  • Slow Debye-type peak observed in the dielectric response of polyalcohols
  • 2010
  • Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 1089-7690 .- 0021-9606. ; 132:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Dielectric relaxation spectroscopy of glass forming liquids normally exhibits a relaxation scenario that seems to be surprisingly general. However, the relaxation dynamics is more complicated for hydrogen bonded liquids. For instance, the dielectric response of monoalcohols is dominated by a mysterious Debye-like process at lower frequencies than the structural alpha-relaxation that is normally dominating the spectra of glass formers. For polyalcohols this process has been thought to be absent or possibly obscured by a strong contribution from conductivity and polarization effects at low frequencies. We here show that the Debye-like process, although much less prominent, is also present in the response of polyalcohols. It can be observed in the derivative of the real part of the susceptibility or directly in the imaginary part if the conductivity contribution is reduced by covering the upper electrode with a thin Teflon layer. We report on results from broadband dielectric spectroscopy studies of several polyalcohols: glycerol, xylitol, and sorbitol. The findings are discussed in relation to other experimental observations of ultraslow (i.e., slower than the viscosity related alpha-relaxation) dynamics in glass formers.
  •  
4.
  • Berntsen, Peter, 1974, et al. (författare)
  • Dielectric and calorimetric studies of hydrated purple membrane
  • 2005
  • Ingår i: Biophysical Journal. - : Elsevier BV. - 0006-3495 .- 1542-0086. ; 89:5, s. 3111-3128
  • Tidskriftsartikel (refereegranskat)abstract
    • Purple membranes (PM) from halobacteria were hydrated to ∼0.4 and ∼0.2 g H 2 O/g of PM and studied by dielectric spectroscopy and differential scanning calorimetry between 120 and 300 K. The dielectric process, attributed to a local (β) relaxation of the confined supercooled water, shows an Arrhenius temperature behavior at low temperatures. In the case of the most hydrated PM a small deviation from the Arrhenius behavior occurs at 190-200 K together with a pronounced endothermic process and an increased activation energy. The observed crossover is accompanied by a reduction of the interlayer spacing due to the partial loss of the intermembrane water. All these effects at ∼200 K are consistent with a scenario where the local relaxation process merges with a nonobservable α-relaxation of the interlayer water, giving rise to a more liquid-like behavior of the interfacial water. For the less hydrated sample the effects are less pronounced and shift to a slightly higher temperature. © 2005 by the Biophysical Society.
  •  
5.
  •  
6.
  •  
7.
  •  
8.
  •  
9.
  •  
10.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 129
Typ av publikation
tidskriftsartikel (117)
konferensbidrag (7)
forskningsöversikt (3)
bokkapitel (2)
Typ av innehåll
refereegranskat (125)
övrigt vetenskapligt/konstnärligt (4)
Författare/redaktör
Swenson, Jan, 1966 (129)
Jansson, Helen, 1964 (34)
Bergman, Rikard, 196 ... (25)
Elamin, Khalid, 1977 (12)
Börjesson, Lars, 195 ... (10)
Howells, W.S. (10)
visa fler...
Ermilova, Inna, 1983 (9)
Cerveny, S. (9)
Adams, St. (8)
Sjöström, Johan, 197 ... (8)
Olsson, Christoffer, ... (7)
Svanberg, Christer, ... (6)
Jacobsson, Per, 1958 (5)
Berntsen, Peter, 197 ... (5)
Mattsson, Johan, 196 ... (5)
Chen, Guo, 1969 (5)
Sengupta, Bidisa, 19 ... (4)
Fernandez-Alonso, F. (4)
Martinelli, Anna, 19 ... (3)
Nylander, Tommy (3)
Engberg, Dennis, 196 ... (3)
ANDERSSON, DANIEL, 1 ... (3)
Karlsson, C. (3)
Uematsu, Takashi, 19 ... (3)
Kittaka, S. (3)
Eklund, Fredrik, 197 ... (3)
Vogel, M. (2)
Chen, G. (2)
Danyliv, Olesia, 198 ... (2)
Young, R. D. (2)
Adams, S. (2)
Johansson, Pär, 1986 (2)
Matic, Aleksandar, 1 ... (2)
Ahlgren, Kajsa, 1996 (2)
Öhgren, Camilla (2)
Tang, Luping, 1956 (2)
Zanghellini, Ezio, 1 ... (2)
Langton, Maud (2)
Schwartz, G. A. (2)
Ericsson, Thomas, 19 ... (2)
Blomgren, Fredrik (2)
Rodin, Alexander (2)
Chrobak, Wojciech (2)
Pacut, Dawid Wojciec ... (2)
McGreevy, R.L. (2)
Meneghini, C. (2)
Lustrup, K. E. (2)
Fenimore, P. W. (2)
Frauenfelder, H. (2)
Shojaatalhoseini, Ma ... (2)
visa färre...
Lärosäte
Chalmers tekniska högskola (129)
Göteborgs universitet (6)
RISE (3)
Lunds universitet (2)
Kungliga Tekniska Högskolan (1)
Stockholms universitet (1)
visa fler...
Sveriges Lantbruksuniversitet (1)
visa färre...
Språk
Engelska (129)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (88)
Teknik (50)
Lantbruksvetenskap (4)
Medicin och hälsovetenskap (3)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy