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Showing 1 to 12 of 134 entries
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Amine-based solvents for exfoliating graphite to graphene outperform the dispersing capacity of N-methyl-pyrrolidone and surfactants.

Chemical communications (Cambridge, England)

Sun Z, Huang X, Liu F, Yang X, Rösler C, Fischer RA, Muhler M, Schuhmann W.
PMID: 25026193
Chem Commun (Camb). 2014 Sep 18;50(72):10382-5. doi: 10.1039/c4cc03923h.

Four organic amine-based solvents were discovered which enable direct exfoliation of graphite to produce high-quality and oxygen-free graphene nanosheets. These solvents outperform previously used solvents and additives such as N-methyl-pyrrolidone and surfactants in terms of their dispersing capacity. The...

Quantitative Measurement of Density in a Shear Band of Metallic Glass Monitored Along its Propagation Direction.

Physical review letters

Schmidt V, Rösner H, Peterlechner M, Wilde G, Voyles PM.
PMID: 26230801
Phys Rev Lett. 2015 Jul 17;115(3):035501. doi: 10.1103/PhysRevLett.115.035501. Epub 2015 Jul 14.

Quantitative density measurements from electron scattering show that shear bands in deformed Al88Y7Fe5 metallic glass exhibit alternating high and low density regions, ranging from -9% to +6% relative to the undeformed matrix. Small deflections of the shear band from...

Linking unfounded beliefs to genetic dopamine availability.

Frontiers in human neuroscience

Schmack K, Rössler H, Sekutowicz M, Brandl EJ, Müller DJ, Petrovic P, Sterzer P.
PMID: 26483654
Front Hum Neurosci. 2015 Sep 30;9:521. doi: 10.3389/fnhum.2015.00521. eCollection 2015.

Unfounded convictions involving beliefs in the paranormal, grandiosity ideas or suspicious thoughts are endorsed at varying degrees among the general population. Here, we investigated the neurobiopsychological basis of the observed inter-individual variability in the propensity toward unfounded beliefs. One...

MAVEN observations of the response of Mars to an interplanetary coronal mass ejection.

Science (New York, N.Y.)

Jakosky BM, Grebowsky JM, Luhmann JG, Connerney J, Eparvier F, Ergun R, Halekas J, Larson D, Mahaffy P, McFadden J, Mitchell DF, Schneider N, Zurek R, Bougher S, Brain D, Ma YJ, Mazelle C, Andersson L, Andrews D, Baird D, Baker D, Bell JM, Benna M, Chaffin M, Chamberlin P, Chaufray YY, Clarke J, Collinson G, Combi M, Crary F, Cravens T, Crismani M, Curry S, Curtis D, Deighan J, Delory G, Dewey R, DiBraccio G, Dong C, Dong Y, Dunn P, Elrod M, England S, Eriksson A, Espley J, Evans S, Fang X, Fillingim M, Fortier K, Fowler CM, Fox J, Gröller H, Guzewich S, Hara T, Harada Y, Holsclaw G, Jain SK, Jolitz R, Leblanc F, Lee CO, Lee Y, Lefevre F, Lillis R, Livi R, Lo D, Mayyasi M, McClintock W, McEnulty T, Modolo R, Montmessin F, Morooka M, Nagy A, Olsen K, Peterson W, Rahmati A, Ruhunusiri S, Russell CT, Sakai S, Sauvaud JA, Seki K, Steckiewicz M, Stevens M, Stewart AI, Stiepen A, Stone S, Tenishev V, Thiemann E, Tolson R, Toublanc D, Vogt M, Weber T, Withers P, Woods T, Yelle R.
PMID: 26542576
Science. 2015 Nov 06;350(6261):aad0210. doi: 10.1126/science.aad0210.

Coupling between the lower and upper atmosphere, combined with loss of gas from the upper atmosphere to space, likely contributed to the thin, cold, dry atmosphere of modern Mars. To help understand ongoing ion loss to space, the Mars...

Psychophysical invariance, perceptual invariance and the physicalistic trap.

The Behavioral and brain sciences

Eisler H.
PMID: 24924055
Behav Brain Sci. 1992 Sep;15(3):566-7. doi: 10.1017/S0140525X00070035.

No abstract available.

An n-dimensional Weber Law and the Corresponding Fechner Law.

Journal of mathematical psychology

Drösler J.
PMID: 10831375
J Math Psychol. 2000 Jun;44(2):330-335. doi: 10.1006/jmps.1999.1242.

Weber's law of 1834, DeltaS/S=c for the just noticeable difference (jnd), can be written as S+DeltaS=kS, k=1+c. It follows that the stimulus decrement required to elicit one jnd of sensation is S-DeltaS*=k(-1)S. If generalized for two stimulus dimensions and...

Calculation and experimental verification of the acoustic stress at GHZ frequencies in SAW resonators.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Kubat F, Ruile W, Hesjedal T, Stotz J, Rösler U, Reindl LM.
PMID: 15600088
IEEE Trans Ultrason Ferroelectr Freq Control. 2004 Nov;51(11):1437-48. doi: 10.1109/tuffc.2004.1367484.

High power applications of Surface Acoustic Wave (SAW) devices may lead to acoustomigration in their thin metal electrodes, which deteriorates the performance or may even destroy the SAW device. It is confirmed in this paper that the mechanism of...

Interpretation of sputter depth profiles by mixing simulations.

Analytical and bioanalytical chemistry

Kupris G, Rössler H, Ecke G, Hofmann S.
PMID: 15048487
Anal Bioanal Chem. 1995 Oct;353(3):307-10. doi: 10.1007/s0021653530307.

The interpretation of sputter depth profiles can be simplified by use of computer simulations. Distortions caused by mixing effects and distortions caused by the information depth of the analytical method have to be distinguished. Atomic mixing and the information...

Packing density of slurry-packed capillaries at low aspect ratios.

Journal of separation science

Ehlert S, Rösler T, Tallarek U.
PMID: 18481330
J Sep Sci. 2008 Jun;31(10):1719-28. doi: 10.1002/jssc.200800018.

The average interparticle voidage or porosity (epsilon(inter)) in cylindrical capillaries is studied in dependence on the column diameter (d(c)) to particle diameter (d(p)) ratio for 5 < d(c)/d(p) < 50. Using optimized slurry and packing solvents, high pressure and...

Volume change during the formation of nanoporous gold by dealloying.

Physical review letters

Parida S, Kramer D, Volkert CA, Rösner H, Erlebacher J, Weissmüller J.
PMID: 16907511
Phys Rev Lett. 2006 Jul 21;97(3):035504. doi: 10.1103/PhysRevLett.97.035504. Epub 2006 Jul 20.

We report a macroscopic shrinkage by up to 30 vol % during electrochemical dealloying of Ag-Au. Since the original crystal lattice is maintained during the process, we suggest that the formation of nanoporous gold in our experiments is accompanied...

2-Aminopyrrolines: new chiral amidinate ligands with a rigid well-defined molecular structure and their coordination to Ti(IV).

Inorganic chemistry

Ward BD, Risler H, Weitershaus K, Bellemin-Laponnaz S, Wadepohl H, Gade LH.
PMID: 16961369
Inorg Chem. 2006 Sep 18;45(19):7777-87. doi: 10.1021/ic060809y.

The use of an amino-oxazolinate (NN(ox) = kappa2-2,6-dimethylphenylamido-4(S)-isopropyloxazoline) as a chiral analogue to amidinate ligands in the chemistry of titanium was found to lead to undesired side reactions. The reaction of 2,6-dimethylphenylamido-4(S)-isopropyloxazoline with [Ti(NMe2)4] afforded the bis(amidinato) complex [Ti(NN(ox))2(NMe2)2]...

[Ru(N.

Angewandte Chemie (International ed. in English)

Sellmann D, Hautsch B, Rösler A, Heinemann FW.
PMID: 29712371
Angew Chem Int Ed Engl. 2001 Apr 17;40(8):1505-1507. doi: 10.1002/1521-3773(20010417)40:8<1505::AID-ANIE1505>3.0.CO;2-2.

N

Showing 1 to 12 of 134 entries