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A Ubiquitous Computing environment for aircraft maintenance
2004
Proceedings of the 2004 ACM symposium on Applied computing - SAC '04
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Ubiquitous Computing bears a high potential in the area of aircraft maintenance. Extensive requirements regarding quality, safety, and documentation as well as high costs for having aircrafts idle during maintenance demand for an efficient execution of the process. Major weaknesses that impact the efficiency of the process are an inadequate tool management, human errors, and labour intensive manual documentation and check procedures. In this paper we propose a solution using ubiquitous
doi:10.1145/967900.968217
dblp:conf/sac/LampeSF04
fatcat:jiqiqn56rjh27a25iuwe7yoytu
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... technologies that improves aircraft maintenance and provides a high level of usability. A scenario, a systems architecture, and maintenance applications are presented. The Smart Toolbox and the Smart Tool Inventory were implemented as proof of concept.
Policy-Based Management and Context Modelling Contributions for Supporting Services in Autonomic Systems
[chapter]
2006
Lecture Notes in Computer Science
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Autonomic networking systems dynamically adapt the services and resources that they provide to meet the changing needs of users and/or in response to changing environmental conditions. This paper presents a novel policy-based, context-aware, service management framework for ensuring the efficient delivery and management of next generation services using autonomic computing principles. The novelty of this approach is its use of contextual information to drive policy-based changes that adapt
doi:10.1007/11880905_15
fatcat:fihbmitixvffpp36u25fow525e
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... rk services and resources. Policies control the deployment and management of services and resources, as well as the software used to create, manage, and destroy these services and resources. Policies also control the distribution and deployment of the necessary components for fully managing the service lifecycle, and provide the efficiency and scalability necessary for supporting autonomic systems.
Trust and Reputation Policy-Based Mechanisms for Self-protection in Autonomic Communications
[chapter]
2009
Lecture Notes in Computer Science
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Currently, there is an increasing tendency to migrate the management of communications and information systems onto the Web. This is making many traditional service support models obsolete. In addition, current security mechanisms are not sufficiently robust to protect each management system and/or subsystem from web-based intrusions, malware, and hacking attacks. This paper presents research challenges in autonomic management to provide self-protection mechanisms and tools by using trust and
doi:10.1007/978-3-642-02704-8_19
fatcat:qr5mtap6rrfgxb5dwp6ec42jcu
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... putation concepts based on policybased management to decentralize management decisions. This work also uses user-based reputation mechanisms to help enforce trust management in pervasive and communications services. The scope of this research is founded in social models, where the application of trust and reputation applied in communication systems helps detect potential users as well as hackers attempting to corrupt management operations and services. These so-called "cheating services" act as "attacks", altering the performance and the security in communication systems by consumption of computing or network resources unnecessarily. Social relationships are built based on the trust between people. Computing and communications systems are now aiming to take advantage of such models and then use the concepts of reputation and trust to, for example, offer secure information services and networking applications. In computing, trust management has been adopted as a way to enable security for distributed systems in situations where there is risk in making decisions. Hence, trust management systems must offer certain guarantees to securing information, as well as the processes that create, manage distribute, and govern information and services, in a reliable and efficient manner.
Fabrication and characterization of 1.55 μm single transverse mode large diameter electrically pumped VECSEL
2007
Optical and quantum electronics
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We report on the design, fabrication, and characterization of InP-based 1.55 µm wavelength large diameter (50 µm) electrically pumped vertical external cavity surface emitting lasers (EP-VECSELs). The hybrid device consists of a half vertical cavity surface emitting laser ( 1 / 2 -VCSEL) structure assembled with a concave dielectric external mirror. The 1 / 2 -VCSEL is monolithically grown on InP substrate and includes a semiconductor Bragg mirror and a tunnel junction for electrical injection.
doi:10.1007/s11082-007-9060-1
fatcat:ctrryily2jbubgyrwcghbjjeai
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... Buried (BTJ) and ion implanted (ITJ) tunnel junction electrical confinement schemes are compared in terms of their thermal and electrical characteristics. Lower thermal resistance values are measured for BJT, but reduced current crowding effects and uniform current injection are evidenced for ITJ. Using the ITJ technique, we demonstrate Room-Temperature (RT) continuous-wave (CW) single transverse mode laser operation from 50-µm diameter EP-VECSEL devices. We show that the experimental laser optical output versus injected current (L-I) curves are well-reproduced by a simple analytical thermal model, consistent with the thermal resistance measurements performed on the 1 / 2 -VCSEL structure. Our results indicate that thermal heating is the main mechanism limiting the maximum CW output power of 50-µm diameter VECSELs, rather than current injection inhomogeneity.
Towards a Unified Policy Language for Future Communication Networks: A Process
2008
2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks
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This paper describes an effort to develop an integrated set of ontologies for the particular sub-domains of network communication and a formal language, common to all the sub-domains, capable of expressing domain specific policies. Principal among these is the dynamic spectrum access (DSA) domain. This effort is led by the Software Defined Radio Forum MLM Work Group, with participation from DARPA and the IEEE Standards Coordinating Committee 41 (SCC 41). The focus of this paper is a description
doi:10.1109/dyspan.2008.74
fatcat:i2ywcolrnzekbialkhqq7jd3kq
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... of the process by which this effort is carried out. The main goals of the paper are to provide the motivation for the effort with respect to DSA, describe the process being used, and promote participation of the wider networking community in the described activities.
Single-Frequency High-Power Continuous-Wave Oscillation at 1003 nm of an Optically Pumped Semiconductor Laser
[article]
2006
arXiv
pre-print
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2006 Semiconductor Lasers and Laser Dynamics II unpublished doi:10.1117/12.662931 fatcat:5duilcyqjjci5jdhkolawbyoce
This work reports single-frequency laser oscillation at 1003.4 nm of an optically pumped external cavity semiconductor laser. By using a gain structure bonded onto a high conductivity substrate, we demonstrate both theoretically and experimentally the strong reduction of the thermal resistance of the active semiconductor medium, resulting in a high power laser emission. The spectro-temporal dynamics of the laser is also explained. Furthermore, an intracavity frequency-doubling crystal was used
arXiv:physics/0606211v1
fatcat:hozpnu6okjb6bo22m6rzookzsu
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... o obtain a stable single-mode generation of blue (501.5 nm) with an output power around 60 mW.
RFID in Movable Asset Management
[chapter]
Computer Communications and Networks
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Moveable asset management is still not appropriately supported by existing IT systems. Items are not managed individually, information about location, status and usage is not accurate or lacking. This can cause delays in industrial operations, inefficient use or excess inventory of costly assets. We propose RFID technology as the key to link the necessary data directly with the physical assets. Assets become able to manage themselves, which eliminates many manually tasks, like searching for
doi:10.1007/1-84628-321-3_4
fatcat:l7uzd22kn5cfdidpcalqn4q7rm
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... ts, inspecting for damages or counting them. The article demonstrates the potential of RFID based asset management solutions using the example of tool management in aircraft maintenance. The example includes the smart toolbox and smart tool inventory application as an implemented solution.
Collective action theory and urban gardens
[article]
2020
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et al. 2014; Eizenberg 2012; Ferris et al. 2001; Game and Primus 2014; Lovell 2010; Martin et al. 2016; Saldivar-Tanaka and Krasny 2004), environmental justice (Ferris et al. 2001; Martin et al. 2016; ...
Sustainability, 10(4), 1085. https://doi.org/10.3390/su10041085
This chapter has been published in a revised version as the following article: Rogge, N., Theesfeld, I., & Strassner, C. (2020) . ...
doi:10.25673/32751
fatcat:wbxth7qu4zghpnvi6hmv626o2y
Werkzeugmanagement in der Flugzeugwartung — Entwicklung eines Demonstrators mit ERP-Anbindung
[chapter]
Das Internet der Dinge
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Kurzfassung. Ungeplante Verzögerungen in der Flugzeugwartung verursachen hohe Folgekosten. Ineffizientes Werkzeugmanagement ist eine mögliche Ursache für derartige Verzögerungen. Hohe Sicherheitsbestimmungen verlangen regelmäßige Kontrollen des Werkzeugbestands, um zu verhindern, dass Mechaniker Werkzeuge versehentlich in der Maschine vergessen. Auch die Anforderungen an die Funktionsfähigkeit der Werkzeuge sind hoch, und Werkzeuge, die Mechaniker gemeinsam nutzen, müssen diese häufig vor dem
doi:10.1007/3-540-28299-8_14
fatcat:iiyrunkbu5hupgubefhz6db7zq
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... brauch suchen. Dieser Beitrag beschreibt Lösungen, die dazu beitragen, das Werkzeugmanagement zu automatisieren: Die smarte Werkzeugkiste erkennt, welche Werkzeuge sich in ihr befinden, protokolliert ihren Zustand und warnt den Mechaniker bei Unvollständigkeit oder falls Werkzeuge falsch einsortiert wurden. Bei der Werkzeugausleihe ist stets bekannt, welcher Mechaniker welche Werkzeuge entliehen hat. Außerdem protokolliert das System die Nutzungshäufigkeit der Werkzeuge und liefert damit Hinweise auf deren Verschleiß. Diese Lösungen verwenden die RFID-Technologie zur automatischen Identifikation von Werkzeugen und zeigen eine Möglichkeit zur Integration mit einem ERP-System. Die hier beschriebenen Lösungen sind leicht auf andere Unternehmen der Branche übertragbar, da das Werkzeugmanagement in der Flugzeugwartung ein hoch standardisierter Prozess ist.
THE PAPERS
[chapter]
1992
Rediscovering Precious Values, July 1951–November 1955
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Strassner 159 18 Nov From W. T. Handy, Jr. 160 3 Dec Sankey L. Blanton to William R. ...
Timothy Boddie to Martin Luther King, Sr. 210 16 Nov J. T. Brooks to Martin Luther King, Sr., and Alberta Williams King 211 19 Nov From Melvin H. ...
doi:10.1525/9780520341906-001
fatcat:mrk44rllgfbe3hjq2cxyopjniq
Controlled Potential Electrolysis
1953
Journal of Synthetic Organic Chemistry, Japan
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Strassner; ibid. (45) ' †" ‡•E'å‹v•Û•E•Ÿ'º ; -h'Ž‰ÈŠw No14, 10 (1949) (46) F.C. Snowden and H. T. Page; Anal. Chem. 22 969 (1950) 74, 893
(1952)
(17) P. Delahiay; ibid, 3506, (1952)
(18) R. ...
Martin and. R. Mittelmann;
BiochemJ
. 43, 2993 (1949)
(38) G. Semerano; proc. Part. I
300 (1951)
(40) R. Pasternak; Helr. Chim. Aata,30, 1984 (1947)
(41)
E. W. Miller etal;
J. Am. Chem. ...
doi:10.5059/yukigoseikyokaishi.11.249
fatcat:qharrzknkza2lm46y7mzr4hjcu
Page 651 of The American Journal of Psychiatry Vol. 69, Issue 4
[page]
1913
The American Journal of Psychiatry
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Martins and Seiffer: Berlin klin. Wochenschr., 1908
5. Schaede: Zeitschr. f. d. gesamt. Neurol. u. Psychiatrie, Orig. Bd. 6. 6. Striimpell: Cit. by Grund. Loc. cit.
7. Frankel-Benda: Deuts. med. ...
Strassner: Deuts, Zeitschr. f. Nervenheil, Bd. 37
12. Grund: Deuts. Zeitschr. f. Nervenheil, Bd. 31.
13. Fischer: Zeitschrift f. Heilkunde, Bd. XXII.
14. Michael: Deuts. med. Wochenschr., 1902.
15. ...
Page 89 of National Union Catalog Vol. 19, Issue
[page]
1948
National Union Catalog
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Lather, Martin, 1483.
1. BS9836 Shs 1947 228 49-23539° Straticd, Michele.
Duets fora violin & bass. ,17—, 22 « 80 cm.
Manueacript e basses are unfigured. ...
Korn 11931,
19 «i fe"
833.91 33-12435 rev
Strassner, Christine, 1886-
Memoirs of a midwife, by Lisbeth Burger- ;pseud.,; authorized translation from the German. ...
Der Verbandsbegriff in wissenschaftlichen Publikationen. Eine Meta-Analyse zu Terminologie und Charakteristika
2012
Zeitschrift für Parlamentsfragen
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Vgl . .Martin Sebaldt / Alexander Straßner, .a .a .O . .(Fn . .1), .S . .23 . ...
(Fn . .13), .S . .20 . 16 . .Vgl . .Martin Sebaldt / Alexander Straßner, .a .a .O . . ...
doi:10.5771/0340-1758-2012-2-408
fatcat:7d3lbzt6ezfmxkzbaprnlysewu
Nouvelles du corps médical
2012
Bulletin des Médecins Suisses
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Ärztegesellschaft des Kantons Schwyz Oliver Christian Kellner, Facharzt für Neurologie und Facharzt für Psychiatrie und Psychotherapie, Kasernenstrasse 24, 8180 Bülach Marco Strassner, Facharzt für Allgemeine ...
Der Preis für die beste wissenschaftliche Arbeit im Gebiet Gynäkologie und Geburtshilfe, verliehen durch die Schweizerische Gesellschaft für Gynäkologie und Geburtshilfe sowie Bayer-Schering, geht an Martin ...
doi:10.4414/bms.2012.90013
fatcat:7uwwlyrts5eplicmhtxfagrlcu
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