Results 101 to 110 of about 4,806,914 (197)

Qualifikationspolitik: betriebliche Weiterbildung in Industrieverwaltungen

, 1995
Zimmermann DA. Qualifikationspolitik: betriebliche Weiterbildung in Industrieverwaltungen. DUV : Sozialwissenschaft. Wiesbaden: DUV, Dt.
Zimmermann, Doris Angela
core  

265nm LED mini-lidar -Theoretical Approach- [PDF]

EPJ Web of Conferences
The LED mini-lidar is discussed to install DUV-LED device in theoretical approach. The short wavelength of 265nm is in solar blind region, and it has potential to observe the low and surface atmosphere in daytime with its handy lidar setup. In this study,
Shiina Tatsuo, Kawakami Yasuyuki, Ikeda Takumi, Katano Kunihiko   +3 more
doaj   +1 more source

The research on AlGaN-based deep UV MQW LEDs with p-type and thickened last quantum barrier

, 2015
由于发光波长在300nm以下的深紫外发光二极管(DUV-LED)在许多领域存在着应用价值，近年来，基于AlGaN材料的多量子阱DUV-LED已引起了人们越来越多的关注。但不容忽视的是，AlGaN基多量子阱DUV-LED一直面临着包括发光功率较低和内外量子效率较低等问题的困扰。因此，如何提高AlGaN基多量子阱DUV-LED的光电性能是亟待人们探究解决的问题。 本文在对AlGaN基多量子阱DUV-LED的研究中，重点关注了DUV-LED的多量子阱发光有源区的最后一个量子阱势垒（LQB ...
包翔龙
core  

Heteroepitaxial Growth of High-Quality and Crack-Free AlN Film on Sapphire Substrate with Nanometer-Scale-Thick AlN Nucleation Layer for AlGaN-Based Deep Ultraviolet Light-Emitting Diodes

Nanomaterials, 2019
High-quality and crack-free aluminum nitride (AlN) film on sapphire substrate is the foundation for high-efficiency aluminum gallium nitride (AlGaN)-based deep ultraviolet light-emitting diodes (DUV LEDs). We reported the growth of high-quality and crack-
Jie Zhao, Hongpo Hu, Yu Lei, Hui Wan, Liyan Gong, Shengjun Zhou   +5 more
doaj   +1 more source

Wissenschaftliche Forschung als Ausweg im politischen Konflikt? Qualitätskontrolle von Eisenbahnmaterial in Preußen (1876–1889)

, 1999
Lundgreen P. Wissenschaftliche Forschung als Ausweg im politischen Konflikt? Qualitätskontrolle von Eisenbahnmaterial in Preußen (1876–1889). Studien zur Wissenschafts- und Technikforschung.
Lundgreen, Peter
core  

Politische Steuerung im Arbeitsschutz: Einsatzbedingungen der Lasertechnik in der industriellen Materialbearbeitung

, 1997
Steffensen B. Politische Steuerung im Arbeitsschutz: Einsatzbedingungen der Lasertechnik in der industriellen Materialbearbeitung. DUV : Sozialwissenschaft. Wiesbaden: DUV, Dt.
Steffensen, Bernd
core  

Enhancing light extraction efficiency of the inclined-sidewall-shaped DUV micro-LED array by hybridizing a nanopatterned sapphire substrate and an air-cavity reflector.

Optics Express
In this work, we hybridize an air cavity reflector and a nanopatterned sapphire substrate (NPSS) for making an inclined-sidewall-shaped deep ultraviolet micro light-emitting diode (DUV micro-LED) array to enhance the light extraction efficiency (LEE).
Zhao-Qiang Liu, T. Jia, Chun-Shuang Chu, Kang-Kai Tian, Chao Fan, Yong-Hui Zhang, Zi-Hui Zhang   +6 more
semanticscholar   +1 more source

Buchstabieren - ein rein sprachlicher Vorgang?

, 2001
Rohwetter C, Kessler K, Hielscher-Fastabend M. Buchstabieren - ein rein sprachlicher Vorgang? In: Sichelschmidt L, Strohner H, eds. Sprache, Sinn und Situation.
Hielscher-Fastabend, Martina ; https://orcid.org/, Sichelschmidt, L, Strohner, H, Rohwetter, C, Kessler, K   +4 more
core  

Advances in DUV spectroscopy

, 2011
The would-be advantages of deep UV (DUV) spectroscopy are well known, but the potential applications have so far not been fully realized due to technological limitations and, perhaps, lack of bright ideas.
Tidemand-Lichtenberg, Peter, Mogensen, Claus Tilsted, Buchhave, Preben   +2 more
core  

Total Internal Reflection of Deep-Ultraviolet Light in a Water Waveguide and Its Application to Water Disinfection Technologies

, 2019
We propose a new disinfection technology based on a novel concept involving the use of a small, deep-ultraviolet light-emitting diode (DUV-LED); the 265-nm DUV light is coupled to a running-water stream and is guided to a distant position without ...
Rika Kikojima, Tomomi Fukuoka, Ichiro Tatsuno, Tadao Hasegawa, Takahiro Matsumoto   +4 more
core   +1 more source