نتایج جستجو برای: surface chemistry

تعداد نتایج: 731487  

2007
P. V. Kotvis P. V. KOTVIS

Tribology Transactions Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713669620 Surface Chemistry of Chlorinated Hydrocarbon Lubricant Additives--Part I: Extreme-Pressure Tribology P. V. Kotvis a; W. T. Tysoe b a Frank P. Farrell Laboratory, Benz Oil, Inc., Milwaukee, Wisconsin b Department of Chemistry and L...

2007
T. J. Blunt

Tribology Transactions Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713669620 Surface Chemistry of Chlorinated Hydrocarbon Lubricant Additives--Part II: Modeling the Tribological Interface T. J. Blunt a; P. V. Kotvis a; W. T. Tysoe b a Benz Oil, Inc., Milwaukee, Wisconsin b Department of Chemistry and Labor...

Journal: :iranian journal of environmental sciences 0
anila ajayan environmental biology division, department of botany, mahatma gandhi college, thiruvananthapuram kerala 695 004 ajit kumar environmental biology division, department of botany, mahatma gandhi college, thiruvananthapuram kerala 695 004

the surface water chemistry of thiruvananthapuram museum lake was carried out in the period of february 2013 to january 2014. correlation study of the parameters and overall ccme wqi (canadian council of ministers of the environment water quality index) was also prepared in the study for the lake water. the parameters analysed are cations such as ca2+, na+, mg2+ and k+ and the anions like po4-,...

2016
Michael Robert Ivanov

Nanomaterials are widely used as pseudostationary and stationary phases in electrically driven separations. The advantages of using nanomaterials are numerous including tunable sizes, multiple core compositions, flexible injection schemes, and diverse surface chemistries. Nanomaterials, however, exhibit large surface energies which induce aggregation and may yield unpredictable function in sepa...

2005
Valentino R. Cooper Alexie M. Kolpak Yashar Yourdshahyan

Using ab initio methods, we examine the electronic structure of substrate-supported metal films. We predict a coexistence between charge-transfer valence-bond states and bandlike metallic states. The role of the support composition in determining the balance of bond and band states is elucidated for Pt on Aland O-terminated -Al2O3, and we reveal how this coexistence evolves with metal film thic...

Journal: :Journal of biomedical materials research 1981
S A Barenberg J M Anderson K A Mauritz

A semiempirical epitaxial model has been derived which correlates and interrelates the surface free energy, ultrastructural morphology, surface charge, surface chemistry, and surface molecular motions of a model triblock copolymer to thrombogenesis. This paper addresses the aspect of: (1) ultrastructure order versus disorder, (2) primary and secondary molecular motions, (3) surface and side cha...

2004
Deepak Bose

A Monte Carlo sensitivity analysis is used to build a plasma chemistry model for octacyclofluorobutane (cc4F8) which is commonly used in dielectric etch. Experimental data are used both quantitatively and quahtatively to analyze the gas phase and gas surface reactions for neutral radlcal chemistry. The sensitivity data of the resulting model identifies a few critical gas phase and surface aided...

Journal: :Nature communications 2016
Keith A Brown Shu He Daniel J Eichelsdoerfer Mengchen Huang Ishan Levy Hyungwoo Lee Sangwoo Ryu Patrick Irvin Jose Mendez-Arroyo Chang-Beom Eom Chad A Mirkin Jeremy Levy

Complex-oxide interfaces host a diversity of phenomena not present in traditional semiconductor heterostructures. Despite intense interest, many basic questions remain about the mechanisms that give rise to interfacial conductivity and the role of surface chemistry in dictating these properties. Here we demonstrate a fully reversible >4 order of magnitude conductance change at LaAlO3/SrTiO3 (LA...

2015
Shengtao Yu Yao Zhang Haoze Duan Yanming Liu Xiaojun Quan Peng Tao Wen Shang Jianbo Wu Chengyi Song Tao Deng

This report investigates the influence of surface chemistry (or wettability) on the evaporation performance of free-standing double-layered thin film on the surface of water. Such newly developed evaporation system is composed of top plasmonic light-to-heat conversion layer and bottom porous supporting layer. Under solar light illumination, the induced plasmonic heat will be localized within th...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2004
M Knez M P Sumser A M Bittner C Wege H Jeske D M P Hoffmann K Kuhnke K Kern

We studied the adsorption behavior and surface chemistry of the tobacco mosaic virus (TMV) on well-defined metal and insulator surfaces. TMV serves as a tubular supramolecular model system with precisely known surface termination. We show that if the surface chemistry of the substrate and the pH-dependent chemistry of the molecular surface match, for example, by hydrogen bonding, a strong adsor...

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