The Role of Mesopores in Intracrystalline Transport in USY Zeolite:  PFG NMR Diffusion Study on Various Length Scales

2005 ◽  
Vol 127 (37) ◽  
pp. 13055-13059 ◽  
Author(s):  
P. Kortunov ◽  
S. Vasenkov ◽  
J. Kärger ◽  
R. Valiullin ◽  
P. Gottschalk ◽  
...  
Keyword(s):  
Diffusion Study ◽  
Usy Zeolite ◽  
Length Scales ◽  
Nmr Diffusion ◽  
Pfg Nmr

scholarly journals Intermolecular Hydrogen Bonding of Steroid Compounds: PFG NMR Diffusion Study, Cold-Spray Ionization (CSI)-MS and X-Ray Analysis

2005 ◽  
Vol 53 (7) ◽  
pp. 792-795 ◽  
Author(s):  
Kazuaki Shikii ◽  
Hiroko Seki ◽  
Shigeru Sakamoto ◽  
Yoshihisa Sei ◽  
Hiroaki Utsumi ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Cold Spray ◽  
Intermolecular Hydrogen Bonding ◽  
Diffusion Study ◽  
X Ray ◽  
Nmr Diffusion ◽  
Pfg Nmr

scholarly journals 1 H PFG‐NMR Diffusion Study on a Sequence‐Defined Macromolecule: Confirming Monodispersity

2019 ◽  
Vol 220 (18) ◽  
pp. 1900155
Author(s):  
Xiaoai Guo ◽  
Katharina S. Wetzel ◽  
Susanne C. Solleder ◽  
Sebastian Spann ◽  
Michael A. R. Meier ◽  
...  
Keyword(s):  
Diffusion Study ◽  
Nmr Diffusion ◽  
Pfg Nmr

Diffusion of Innovations

2021 ◽  
pp. 610-638
Author(s):  
James W. Dearing
Keyword(s):  
External Validity ◽  
Diffusion Of Innovations ◽  
Change Processes ◽  
Dissemination And Implementation ◽  
Rapid Rise ◽  
Diffusion Study ◽  
Research And Practice ◽  
Dissemination And Implementation Science ◽  
Implementation Of Innovations

The main concepts of the diffusion of innovations represent a hybrid change research and practice paradigm that blends ideas that can now be found in life cycle, evolutionary, and teleological theories of social change. This chapter discusses why the paradigm developed in the ways that it did, including the shortcomings of this approach, especially for studying the role of organizations in change processes. The chapter also examines the rapid rise of dissemination and implementation science as conducted by health services and public health researchers and how those new literatures are related to diffusion. This paradigmatic evolution from descriptive and explanatory studies to intervention research utilizing diffusion concepts is a theme of this chapter, with emphases on organizational implementation of innovations, inter-organizational diffusion, external validity of innovations and how a recognition of the agency of adopters can reshape diffusion study.

scholarly journals The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Kaikin Wong ◽  
Rithin P. Krishnan ◽  
Changjiu Chen ◽  
Qing Du ◽  
Dehong Yu ◽  
...  
Keyword(s):  
Length Scales ◽  
Glass Forming ◽  
Dynamic Length

Diffusion NMR and bicelle morphology

2011 ◽  
Vol 89 (9) ◽  
pp. 1021-1035 ◽  
Author(s):  
Peter M. Macdonald ◽  
Ronald Soong
Keyword(s):  
Lateral Diffusion ◽  
Diffusion Method ◽  
Nmr Studies ◽  
Diffusion Nmr ◽  
Magnetically Aligned Bicelles ◽  
Diffusion Studies ◽  
Membrane Bound ◽  
Nmr Diffusion ◽  
Pfg Nmr ◽  
Magnetically Aligned

This minireview focuses on diffusion NMR studies in bicelles. Following a discourse on diffusion fundamentals, and a comparative overview of fluorescence and NMR-based techniques for measuring diffusion, the pulsed field gradient (PFG) NMR diffusion method is introduced, emphasizing its specific advantages and limitations when applied to diffusion measurements in macroscopically oriented lamellar systems such as magnetically aligned bicelles. The utility of PFG NMR diffusion measurements in bicellar model membrane systems for examining lateral diffusion of membrane-bound molecular species is demonstrated, along with certain features of lateral diffusion that such studies illuminate. Further, those aspects of bicelle morphology that have been resolved using PFG NMR diffusion studies of various molecular weight soluble polymeric species are reviewed. The discussion concludes with an outline of future prospects for diffusion NMR studies in bicelles.

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