نتایج جستجو برای: r30

تعداد نتایج: 269  

2015
Jian Chen Yi Du Zhi Li Wenbin Li Baojie Feng Jinlan Qiu Peng Cheng Shi Xue Dou Lan Chen Kehui Wu

The "multilayer silicene" films were grown on Ag(111), with increasing thickness above 30 monolayers (ML). Scanning tunneling microscopy (STM) observations suggest that the "multilayer silicene" is indeed a bulk-like Si(111) film with a (√3 × √3)R30° honeycomb superstructure on surface. The possibility for formation of Si(111)(√3 × √3)R30°-Ag reconstruction on the surface can be distinctively r...

Journal: :Physical review letters 2006
R Cortés A Tejeda J Lobo C Didiot B Kierren D Malterre E G Michel A Mascaraque

We report an investigation on the properties of 0.33 ML of Sn on Ge(111) at temperatures down to 5 K. Low-energy electron diffraction and scanning tunneling microscopy show that the (3x3) phase formed at approximately 200 K, reverts to a new ((square root 3)x(square root 3))R30 degrees phase below 30 K. The vertical distortion characteristic of the (3x3) phase is lost across the phase transitio...

2003
C. D. Lee Y. Dong R. M. Feenstra J. E. Northrup J. Neugebauer

The growth and surface reconstructions of AlN(0001) films were studied. For moderately Alrich surfaces, the 2×6 structure is commonly observed in reflection high energy electron diffraction. It is found that this pattern consists of 2√3×2√3-R30° and 5√3×5√3-R30° reconstructions according to scanning tunneling microscopy. Similar to the Ga-rich GaN(0001) surface, these structures are determined ...

Journal: :Journal of the American Chemical Society 2001
A P Seitsonen Y Zhu K Bedürftig H Over

Exposing water to a (2 x 2)-O precovered Pt(111) surface at 100 K and subsequently annealing at 155 K led to the formation of a well-ordered (square root 3 x square root 3)R30 degrees overlayer. The structure of this overlayer is determined by DFT and full dynamical LEED calculations. There are two O containing groups per (square root 3 x square root 3)R30 degrees unit cell and both occupy near...

2006
JIANJUN YIN RONALD J. STOUFFER

Two coupled atmosphere–ocean general circulation models developed at GFDL show differing stability properties of the Atlantic thermohaline circulation (THC) in the Coupled Model Intercomparison Project/ Paleoclimate Modeling Intercomparison Project (CMIP/PMIP) coordinated “water-hosing” experiment. In contrast to the R30 model in which the “off” state of the THC is stable, it is unstable in the...

Journal: :Physical chemistry chemical physics : PCCP 2006
J Schoiswohl G Tzvetkov F Pfuner M G Ramsey S Surnev F P Netzer

The adsorption of water on V2O3(0001) surfaces has been investigated by thermal desorption spectroscopy, high-resolution electron energy loss spectroscopy, and X-ray photoelectron spectroscopy with use of synchrotron radiation. The V2O3(0001) surfaces have been generated in epitaxial thin film form on a Rh(111) substrate with three different surface terminations according to the particular prep...

2003
Keith W. Dixon Thomas L. Delworth Thomas R. Knutson Michael J. Spelman Ronald J. Stouffer

The transient responses of two versions of the Geophysical Fluid Dynamics Laboratory (GFDL) coupled climate model to a climate change forcing scenario are examined. The same computer codes were used to construct the atmosphere, ocean, sea ice and land surface components of the two models, and they employ the same types of sub-grid-scale parameterization schemes. The two model versions differ pr...

2014
Dae-Hee Kim Ji-Young Yoo Bong-Ki Moon Baek-Hyun Yoon Jong-Yeop Kim

BACKGROUND Remifentanil sometimes elicits cough during induction of anesthesia, as with the use of other fentanyl congeners. We designed this study to investigate the incidence of remifentanil-induced cough (RIC) in children and to evaluate the effect of injection speed on RIC. METHODS One hundred twenty ASA physical status I-II patients, aged 3-12 yr, undergoing general anesthesia were enrol...

Journal: :Han-guksikpumjeojang-yutonghakoeji 2022

In this study, by replacing makgeolli in jeungpyeon manufacturing with won-ju (raw makgeolli) and standardizing the mixing ratio, it was intended to provide information that could suit consumers’ tastes utilize added value of (R10, R20, R30, R40 means amounts raw makgeolli). Raw content did not significantly differ moisture content. pH, L value, hardness gumminess decreased increasing addition ...

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