Mechanical action enhanced technique

In the past decade, effects of an EEF on the properties of lubrication and wear have attracted significant attention. Many experimental results indicate that the friction coefficient changes with the intensity of the EEF on tribo-pairs. These phenomena are thought to be that the EEF can enhance the electrochemical reaction between lubricants and the surfaces of tribo-pairs, change the tropism of polar lubricant molecules, or help the formation of ordered lubricant molecular layers [51,73-77]. An instrument for measuring lubricant film thickness with a technique of the relative optical interference intensity (ROII) has been developed by Luo et al. [4,48,51,78] to capture such real-time interference fringes and to study the phenomenon when an EEF is applied, which is helpful to the understanding of the mechanism of thin film lubrication under the action of the EEF. 

The biochemical mechanism that allows chromium to potentiate the actions of insulin receptors on cell membranes has been intensively investigated. It is now suggested that a low molecular weight intracellular octapeptide (LMWCr), also known as chromodulin, binds Cr and enhances the response of insulm receptors. Chromodufin binds four Cr ions and then locates on cell membranes near to the site of insulin receptors. The structure of chromodulin has been examined by a variety of advanced spectroscopic techniques and the complex shown to possess a unique type of multmuclear assembly, with the chromium centers having an octahedral coordination with oxygen-based ligands. ... 

Recent studies of the photochemistry of Mo(CO)6 on Ag(l 11) 05 graphite 05 Cu(l 1 1 )70.71,106 and Si( 11 1 )70,71,106 have also shown clear evidence for direct adsorbate excitation. The main techniques employed were MS, EELS and TPD. That the electronic structure was essentially unperturbed on adsorption was confirmed by EELS.105 The photochemical action spectrum followed the gas phase spectrum rather closely, even to the extent of reproducing the charge transfer bands. This is very clear evidence for the direct excitation mechanism. There was an additional enhancement at 325 nm on Ag (111) due to the field enhancement associated with the resonance between the d bands and the Fermi level. Several interesting results were obtained with regard to the excited state quenching. Since the electronic transitions are... 

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