Refine
Year of publication
- 2017 (117) (remove)
Document Type
- Article (117) (remove)
Has Fulltext
- no (117) (remove)
Keywords
- Mediationsverfahren (2)
- Mediatorrolle (2)
- Coaching (1)
- Feldstudie (1)
- Geldpolitik (1)
- Hydraulic cell compression (1)
- Makroökonomie (1)
- Management (1)
- Mediatoranalyse (1)
- PEM electrolysis (1)
- Psychodynamische Beratung (1)
- Servant Leadership (1)
- Upscaling laboratory models (1)
- Vollgeld (1)
- freiwilliges Arbeitsengagement (1)
- mentales Abschalten nach der Arbeit (1)
Institute
- Institut für Internetsicherheit (54)
- Wirtschaftsrecht (47)
- Wirtschaft und Informationstechnik Bocholt (6)
- Elektrotechnik und angewandte Naturwissenschaften (2)
- Institut für Innovationsforschung und -management (2)
- Westfälisches Energieinstitut (2)
- Wirtschaft Gelsenkirchen (2)
- Wirtschaftsingenieurwesen (1)
Arbeit unter Strom
(2017)
Bayern baden billiger!?
(2017)
This study investigates differences between treatment plans generated by Ray Tracing (RT) and Monte Carlo (MC) calculation algorithms in homogeneous and heterogeneous body regions. Particularly, we focus on the head and on the thorax, respectively, for robotic stereotactic radiotherapy and radiosurgery with Cyberknife. Radiation plans for tumors located in the head and in the thorax region have been calculated and compared to each other in 47 cases and several tumor types.
Cyber Security – 10 aktuelle Problemfelder. Problembewusstsein muss zunächst entwickelt werden!
(2017)
Der Fall des Monsieur B.
(2017)
Die Beseitigung der WLAN-Störerhaftung. Ein Lernprozess für den Gesetzgeber – Fortsetzung folgt?
(2017)
Digitale Fernleihen von E-Books. EuGH-Entscheidung versetzt erneut die Verlagslandschaft in Aufruhr
(2017)
DocMorris und die Folgen - die EuGH-Rechtsprechung mahnt die nationalen Gesetzgeber zur Tätigkeit
(2017)
Environmental rocking ratchet: Environmental rectification by a harmonically driven avoided crossing
(2017)
We propose a rocking ratchet designed as a symmetric quantum two-state system driven by a single periodic harmonic force and influenced symmetrically by thermal fluctuations. We show that the necessary broken symmetry can dynamically be achieved by a thermal environment that couples to the energy difference between the two states and the tunnel coupling between them. The quantum two-state system is driven by the harmonic periodic drive through its avoided crossing. The correspondingly driven dissipative quantum dynamics results on average in a finite population difference between both states. This then causes directed particle transport.
Die kognitive Distanzierung von Arbeitsinhalten wahrend der arbeitsfreien Zeit (psychological detachment) stellt einen wichtigen Faktor für Erholung, Wohlbefinden und andauernde
Leistungsfähigkeit von Beschäftigten dar. Die Antezedenzien von mentalem Abschalten nach der Arbeit sind jedoch bisweilen nur unzureichend untersucht worden; dies gilt insbesondere für Variablen im unmittelbaren Arbeitsumfeld von Mitarbeitern. Was können Organisationen tun, um das mentale Abschalten ihrer Mitarbeiter in der Freizeit zu fordern? Basierend auf einer Kombination aus dem Stressor–Detachment Model und der Theorie der Ressourcenerhaltung gehen wir davon aus, dass Servant Leadership als Prädiktor von mentalem Abschalten nach der Arbeit betrachtet werden kann, welches sich wiederum positiv auf freiwilliges Arbeitsengagement (Organizational Citizenship Behavior), auswirkt. Die Hypothesen testen wir mittels Querschnittsdesign mit N = 121 Mitarbeitern eines Technologiekonzerns. Es werden Zeitintervalle zwischen den Erhebungszeitpunkten sowie Fremdbeurteilungen eingesetzt, um das Risiko von Methodenverzerrung zu minimieren. Die Ergebnisse eines Strukturgleichungsmodells zeigen hypothesenkonform, dass mentales Abschalten nach der Arbeit den Zusammenhang zwischen Servant Leadership und freiwilligem Arbeitsengagement teilweise mediiert. Implikationen für die Praxis und Ansatzpunkte für zukünftige Forschungsarbeiten werden diskutiert.
EU-Visakodex auf dem Prüfstand. Der EuGH entscheidet zur Asylpolitik – ein salomonisches Urteil?
(2017)
The technology of polymer electrolyte membrane (PEM) electrolysis provides an efficient way to produce hydrogen. In combination with renewable energy sources, it promises to be one of the key factors towards a carbon-free energy infrastructure in the future. Today, PEM electrolyzers with a power consumption higher than 1 MW and a gas output pressure of 30 bar (or even higher) are already commercially available. Nevertheless, fundamental research and development for an improved efficiency is far from being finally accomplished, and mostly takes place on a laboratory scale. Upscaling the laboratory prototypes to an industrial size usually cannot be achieved without facing further problems and/or losing efficiency. With our novel system design based on hydraulic cell compression, a lot of the commonly occurring problems like inhomogeneous temperature and current distribution can be avoided. In this study we present first results of an upscaling by a factor of 30 in active cell area.
Kopftuchstreit erreicht Europa. Vorabentscheidungsverfahren aus Belgien und Frankreich beim EuGH
(2017)
Mit Sicherheit mobil. Lagebild zur Bedrohung der Unternehmenssicherheit durch Smartphones & Co.
(2017)
Environmental noise leads to dephasing and relaxation in a quantum system. Often, a rigorous treatment of multiple noise sources within a system-bath approach is not possible. We discuss the influence of environmental fluctuations on a quantum system whose dynamics is dephasing already due to a phenomenologically treated additional noise source. For this situation, we develop a path-integral approach, which allows us to treat the system-environment coupling in a numerically exact way, and additionally we extend standard perturbative approaches. We observe strong deviations between the numerically exact and the perturbative results even for weak system-bath coupling. This shows that standard perturbative approaches fail for additional, even weak, system-bath couplings if the system dynamics is already dissipative.
This work deals with the preparation and investigation of polymer electrolyte membrane fuel cell (PEMFC) electrodes, which are obtained using gas diffusion layers coated with graphene related material (GRM) serving as a catalyst support for platinum nanoparticles. PEMFC electrocatalysts have been prepared by pulsed electrochemical deposition of platinum particles from hexachloroplatinic acid. Prior to GRM decoration with platinum, the graphene structures are functionalized by oxygen plasma treatment. This leads to oxygen containing functional groups on the GRM outer surface, providing an improved hydrophilic behavior, thus favoring the Pt deposition process. Membrane electrode assemblies (MEAs) with the so prepared electrodes are investigated in-situ in our fuel cell test system. Polarization plots (in-situ cell performance) using these MEAs have been tested under different operational conditions.
Preparation, catalytical activity and crystal structure of a heptanuclear zinc acetate cluster
(2017)