Dynamic interfaces

Studies of Dynamic Contact of Ceramics and Alloys for Advanced Heat Engines. 

The compositions of the various materials used in the study are presented in Table 2. A variety of monolithic and coating materials were selected to represent various chemical compositions and materials with previously demonstrated successful sliding performance. 

Sliding Contact Cylinder Specimens Ring Specimens Ring crown radius Motion  

Reciprocating Speed Average Specimen Speed Load  

Diesel exhaust or other gases Friction and wear (after test) 

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Understanding the behavior of radionuclides in estuaries, as the dynamic interface between the continental hydrochemical systems and the ocean basins, requires consideration of broader chemical cycling in the hydrosphere. In this volume, the behavior of U- and Th-series isotopes in rivers is discussed by Chabaux et al. (2003), that in groundwaters by Porcelli and Swarzenski (2003), and that in oceans by Cochran and Masque (2003). General background information is provided by Bourdon et al. (2003). 

Mazourek M, Pujar A, Borovsky Y, Paran I, MueUer L, Jahn MM (2009) A dynamic interface for capsaicinoid systems biology. Plant Physiol 150 1806-1821... 

Floudas and coworkers [90] employed dielectric spectroscopy to probe the interfacial width in lamellae forming non-linear block copolymers of the type (B-h-A)3B and (B-h-A)3B(A-h-B)3, where A is PI and B is PS. Their experiments were conducted at temperatures below the ODT and below the glass transition of the PS hard phase . In this temperature region the global chain dynamics of PI bridges were used to provide an estimate of the dynamic interface between... 

UV Alumina ion. One phase containing a the dynamic interface beteen packets is illustrated... 

Keywords Bilayers Biosensor Constitutional dynamic chemistry Dynamic interfaces Nanoparticles Quartz crystal microgravimetry Surface plasmon resonance... 

This growing multidisciplinary field of nanobiotechnology could have important contributions to make to the future of medicine [14], part of which, the consideration of molecular recognition events at the cell membrane surface as information transfer, could have important implications when applied to pharmaceutical development [15, 16]. Dynamic interfaces may provide a means to reach greater sensitivities and novel unpredicted behaviours in terms of biological interaction both for in vitro measurement and in vivo applications. 

The coupling of biomimetic dynamic interfaces with electrochemical impedance spectroscopy has shown value in the study of ion transport studies across tethered bilayers [56]. Electrochemical impedance spectroscopy may prove valuable used in conjunction with the previously described techniques [57, 58]. Again electrode construction with readily chemically adaptable surface materials such as gold, silver and glass/silica amongst others make this a promising approach for introducing functional interfaces. 

Besides the bilayer type dynamic interfaces there also exist dynamic interfaces involving SAMs. The cooperative dynamic nature of SAMs on gold has been confirmed previously [107], On 2D surfaces the level of mobility in gold-thiol SAMs has been looked at and is considered quite slow ranging from 10 18 to 10 14 cm2 s 1 ( 1 nm/h) [109,108] when compared to phospholipid and membrane protein, lateral mobilities of around 10 8 cm2 s... 

Looking through the literature to date it is apparent that the use of constitutionally dynamic interfaces for biorecognition and membrane transport represents an emerging field. There are quite a few examples where biomimetic type supported... 

Supramolecular and constitutional dynamic interfaces and layers have evidently not been consciously much employed to date in biosensing and transport applications. They may provide some initial chemical synthetic difficulties when compared to using naturally derived substances such as phospholipid and cholesterol based components but they may provide a route to nanostructured surfaces and particles demonstrating unknown specificities and behaviours. 

Sun, Y.-P., Unestam, T., Lucas, S. D. et al. (1999). Exudation-reabsorption in mycorrhizal fungi, the dynamic interface for interaction with soil and other microorganisms. Mycorrhiza, 9, 137-44. 

Kim K. Baldridge (North Dakota State University) and Mark S. Gordon Illustration of Electronic Structure-Dynamics Interface. ... 

R. J. Forster, Hopping Across Interfaces Heterogeneous Electron Transfer Dynamics, Interface 9(4) 24, 2000. 

A more dynamic interface and communication between science and policy ... 

With gaseous reactants (Hj, Oj, hydrocarbons, etc.), use of hydrophobized porous electrocatalysts has proved successful (6, 8, 33). The wet-proofing prevents pore flooding and creates a high-area, dynamic interface between... 

Dynamic properties of interfaces have attracted attention for many years because they help in understanding the behaviour of polymer, surfactant or mixed adsorption layers.6 In particular, interfacial rheology (dilational properties) is crucial for many technological processes (emulsions, flotation, foaming, etc).1 The present work deals with the adsorption of MeC at the air-water interface. Because of its amphiphilic character MeC is able to adsorb at the liquid interface thus lowering the surface tension. Our aim is to quantify how surface active this polymer is, and to determine the rheological properties of the layer. A qualitative and quantitative evaluation of the adsorption process and the dilata-tional surface properties have been realised by dynamic interface tension measurements using a drop tensiometer and an axisymmetric drop shape analysis. 

As indicated above, dynamic interfaces frequently have complex shapes. In this section we provide additional information on the geometric properties of surfaces needed to apply some of the basic principles discussed previously to interfaces of arbitrary shape. For simplicity, only certain pertinent results are given the reader may consult Slattery (1990) for a detailed account. 

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