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129 results on '"Bruns, Jürgen"'

3. Vorwort

Author

Bruns, Jürgen B., additional and Bruns, Alexander J.S., additional

Published
2020
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15. Donor-site reconstruction after osteochondral transplantation - underestimated?

Author

Wittig-Draenert, Alice and Bruns, Jürgen

Subjects
musculoskeletal diseases, ddc: 610, Medicine and health, osteochondral graft, musculoskeletal system, human activities, donorside-morbidity, large osteochondral defects
Abstract

Objectives: For reconstruction of large osteochondral lesions of the knee or the talus osteochondral autologous grafts are a well-known opportunity. Grafts are taken normally from the ipsilateral patella groove or the dorsal condyles. We propose that for a good to excellent clinical result, donor-site [for full text, please go to the a.m. URL]

Published
2021
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16. An Integrated Evanescent Field Sensor for the Simultaneous Measurement of Layer Refractive Index and Thickness

Author

Jäger, Matthias, Bruns, Jürgen, Schneidewind, Jessica, Pinnow, Cay, Gargouri, Hassan, and Petermann, Klaus

Subjects
silicon photonics, ring resonator, Communication, lcsh:TP1-1185, ddc:620, lcsh:Chemical technology, silicon on insulator (SOI), refractive index sensing
Abstract

A novel integrated sensor for the simultaneous measurement of layer refractive index and thickness based on evanescent fields is proposed. The theoretical limits for the accuracy of the sensor were examined for the example of a TiO2 layer. The influence of production tolerance on the accuracy was evaluated. In the experimental part of this work, a sensor chip containing nanowire and nanorib waveguides realized in silicon on insulator technology was used to demonstrate the detection of refractive index and thickness of a TiO2 atomic layer deposition (ALD) layer.

Published
2021

18. SOI-based optical board technology

Author

Bruns, Jürgen, Mitze, Torsten, Schnarrenberger, Martin, Zimmermann, Lars, Voigt, Karsten, Krieg, Martina, Kreißl, Jochen, Janiak, Klemens, Hartwich, Thorsten, and Petermann, Klaus

Published
2007
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27. Interim Executives – a role model for private equity?

Author

Bruns, Jürgen and Bruns, Jürgen

Abstract

The “take away” of this booklet is that the utilization of Interim Executives in private equity – beyond bridging “CXO” positions – relates positively and negatively to the “context of the PE firm” in terms of size of funds, active or passive engagement, culture and operating model. Moreover, results illustrate that the utilization and successful deployment of the Interim Executive role in PE relates positively to the importance of value creation programs and the existence of special “competencies” and very often a “complementary” skillset of the Interim Executive. Likewise the utilization and duration of Interim Executive deployment in PE relates positively to the individual “context of the portfolio company” and the potential “role” coverage of the Interim Executive in terms of process stage, deal complexity and the intensity of the portfolio company situation. The role model of an Interim Executive is not limited to bridging executive management positions but, in a lot of instances, fits to PE value creation programs alongside the various PE process stages. Even if PE is already deploying in-house operating partners, it still appears to be very much a “complementary” role model for PE. This booklet serves private equity representatives, portfolio company management and advisory boards as well as the Interim Executive profession as a best practice guide for a relatively new and flexible management tool by “doing more with less” resources in supporting performance improvement and value creation programs in PE portfolio companies. - “An outstanding primer for any executive fireman engagement in private equity. … Must read.” Ryan Connolly – Marlin Equity Partners

Published
2015

33. Electro-optic modulation in slotted resonant photonic crystal heterostructures

Author

Wülbern, Jan Hendrik, Hampe, Jan, Petrov, Alexander, Eich, Manfred, Luo, Jingdong, Jen, Alex K.-Y., Di Falco, Andrea, Krauss, Thomas F., Bruns, Jürgen, Wülbern, Jan Hendrik, Hampe, Jan, Petrov, Alexander, Eich, Manfred, Luo, Jingdong, Jen, Alex K.-Y., Di Falco, Andrea, Krauss, Thomas F., and Bruns, Jürgen

Abstract

Two dimensional photonic crystal waveguides in high index materials enable integrated optical devices with an extremely small geometrical footprint on the scale of micrometers. Slotted waveguides are based on the guiding of light in low refractive index materials and a field enhancement in this particular region of the device. In this letter we experimentally demonstrate electro-optic modulation in slotted photonic crystal waveguides based on silicon-on-insulator substrates covered and infiltrated with nonlinear optical polymers. A photonic crystal heterostructure is used to create a cavity, while simultaneously serving as an electrical connection from the slot to the metal electrodes that carry the modulation signal.

Published
2010

45. Nanophotonics in silicon-organic hybrid structures

Author

Eich, Manfred, primary, Wülbern, Jan Hendrik, additional, Hampe, Jan, additional, Petrov, Alexander, additional, Luo, Jingdong, additional, Jen, Alex K. -Y., additional, di Falco, Andrea, additional, Krauss, Thomas F., additional, and Bruns, Jürgen, additional

Published
2009
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