TY  - JOUR
A1  - Karpitschka, Stefan
A1  - Liebig, Ferenc
A1  - Riegler, Hans
T1  - Marangoni Contraction of Evaporating Sessile Droplets of Binary Mixtures
JF  - Langmuir
N2  - The Marangoni contraction of sessile drops of a binary mixture of a volatile and a nonvolatile liquid has been investigated experimentally and theoretically. The origin of the contraction is the locally inhomogeneous evaporation rate of sessile drops. This leads to surface tension gradients and thus to a Marangoni flow. Simulations show that the interplay of Marangoni flow, capillary flow, diffusive transport, and evaporative losses can establish a quasistationary drop profile with an apparent nonzero contact angle even if both liquid components individually wet the substrate completely. Experiments with different solvents, initial mass fractions, and gaseous environments reveal a previously unknown universal power-law relation between the apparent contact angle and the relative undersaturation of the ambient atmosphere: theta(app) similar to (RHeq - RH)(1/3). This experimentally observed power law is in quantitative agreement with simulation results. The exponent can also be inferred from a scaling analysis of the hydrodynamic-evaporative evolution equations of a binary mixture of liquids with different volatilities.
Y1  - 2017
U6  - https://doi.org/10.1021/acs.langmuir.7b00740
SN  - 0743-7463
VL  - 33
SP  - 4682
EP  - 4687
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Matiaske, Wenzel
A1  - Schmidt, Torben Dall
A1  - Halbmeier, Christoph
A1  - Maas, Martina
A1  - Holtmann, Doris
A1  - Schröder, Carsten
A1  - Böhm, Tamara
A1  - Liebig, Stefan
A1  - Kritikos, Alexander
T1  - SOEP-LEE2
BT  - linking surveys on employees to employers in Germany
JF  - Jahrbücher für Nationalökonomie und Statistik
N2  - This article presents the new linked employee-employer study of the Socio-Economic Panel (SOEP-LEE2), which offers new research opportunities for various academic fields. In particular, the study contains two waves of an employer survey for persons in dependent work that is also linkable to the SOEP, a large representative German annual household panel (SOEP-LEE2-Core). Moreover, SOEP-LEE2 includes two waves of self-employed surveys based on self-employed in the SOEP-Core (SOEP-LEE2-Self-employed) and three additional representative employer surveys, independent of the SOEP in terms of sampling employers (SOEP-LEE2-Compare). Survey topics include digitalisation and cybersecurity, human capital formation, COVID-19, and human resource management. Here, we describe the content, survey design, and comparability of the different datasets in the SOEP-LEE2 to potential users in different disciplines of research.
KW  - employment relations
KW  - human resource management
KW  - linked employee- employer data
KW  - SOEP
KW  - SOEP-LEE2
KW  - survey design
Y1  - 2023
U6  - https://doi.org/10.1515/jbnst-2023-0031
SN  - 0021-4027
SN  - 2366-049X
VL  - 243
PB  - De Gruyter Oldenbourg
CY  - Berlin
ER  - 
TY  - RPRT
A1  - Adriaans, Jule
A1  - Griese, Florian
A1  - Auspurg, Katrin
A1  - Bledow, Nona
A1  - Bohmann, Sandra
A1  - Busemeyer, Marius R.
A1  - Delhey, Jan
A1  - Goebel, Jan
A1  - Groh-Samberg, Olaf
A1  - Heckhausen, Jutta
A1  - Hinz, Thomas
A1  - Kroh, Martin
A1  - Lengfeld, Holger
A1  - Lersch, Philipp M.
A1  - Liebig, Stefan
A1  - Richter, David
A1  - Sachweh, Patrick
A1  - Schupp, Jürgen
A1  - Schwerdt, Guido
A1  - Verwiebe, Roland
T1  - Dokumentation zum Entwicklungsprozess des Moduls Einstellungen zu sozialer Ungleichheit im SOEP (v38)
T2  - SOEP survey papers, series B - survey reports (Methodenberichte)
N2  - Im Rahmen eines einjährigen Entwicklungsprozesses wurde das Fragebogenmodul "Einstellungen zu sozialer Ungleichheit" unter der Leitung der Infrastruktureinrichtung SOEP entwickelt und in der 38. Welle der Haupterhebung des Sozio-oekonomischen Panels erstmalig erhoben. Das finale Fragebogenmodul umfasst 43 Items zu den Themenbereichen Soziale Vergleiche, Soziale Mobilität, Sozialstaat und Nicht-materielle Ungleichheit. In der Tradition des SOEP als forschungsbasierte Infrastruktureinrichtung erfolgte die Fragebogenentwicklung in enger Zusammenarbeit mit externen Forschenden aus dem Bereich der Einstellungs- und Ungleichheitsforschung. Neben der etablierten Nutzung des SOEP Innovation Samples (SOEP-IS) für quantitative Pretests neu entwickelter Fragen kam erstmals ein kognitiver Pretest zum Einsatz. Der vorliegende Bericht dokumentiert den Entwicklungsprozess von der Konzeption bis zum finalen Fragebogen.
KW  - Einstellungen zu sozialer Ungleichheit
KW  - Fragebogenentwicklung
KW  - Pretest
KW  - SOEP
KW  - SOEP-IS
Y1  - 2021
UR  - https://www.diw.de/documents/publikationen/73/diw_01.c.829765.de/diw_ssp1071.pdf
SN  - 2193-5580
VL  - 1071
PB  - Deutsches Institut für Wirtschaftsforschung (DIW)
CY  - Berlin
ER  -