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The concept of “strong stability” of LTI systems is introduced. This is a stronger notion of stability compared to alternative definitions, which allows the analysis and design of control systems with no overshooting response for arbitrary initial conditions. In this part of the paper strong stability is formally defined and related to various system properties, in particular asymptotic stability,...
We report our recent work to improve a number of performance attributes of “KIDcam,” a passive THz imaging camera based on frequency multiplexed Lumped Element Kinetic Inductance Detectors (LEKIDs.) The array operates at 250mK but the entire instrument is liquid cryogen-free and can be operated remotely and automatically. It offers high sensitivity throughout the THz region with video rate frame capture...
Differentially methylated regions (DMRs) are segments or islands of consecutive sequence positions, showing methylation enrichment or depletion compared to each other in different samples or tissues. The identification of DMRs is a crucial first step in the discovery of biomarkers for noninvasive prenatal diagnosis of aneuploidies such as Trisomy 21. In this paper we describe an algorithm to automatically...
We report the measured performance characteristics of a broadband (0.2 – 10 THz) bolometer instrument based on thin film superconducting technology. The technology is designed for operation both in liquid helium cryostats but also in an electrical cooling platform. We report a number of significant advantages that accrue to superconducting technology compared to semiconductor devices. Single pixel...
KIDCAM is demonstration of a deployable cryogen-free passive THz imaging technology. A linear focal plane array of Lumped Element Kinetic Inductance Detectors (LEKIDs) is cooled to sub-K temperatures without the consumption of liquid cryogens. The instrument offers extremely high detection sensitivity with video frame rate capability and high spatial resolution to suit many imaging applications. The...
We present the effects of cosmic rays on the detectors onboard the Herschel satellite. We describe in particular the glitches observed on the two types of cryogenic far-infrared bolometer inside the two instruments PACS and SPIRE. The glitch rates are also reported since the launch together with the SREM radiation monitors aboard Herschel and Planck spacecrafts. Both have been injected around the...
One of the primary issues in pervasive computing is the adaptation of the communication to the needs of limited devices. Web services are one of the technologies that present both big challenges and big potentials when it comes to their adapted usage in pervasive systems, because they carry communication overhead in order to support interoperability and platform-independence through self-description...
Mobile Web services lie on the intersection of two big IT trends, namely Service-oriented Architectures (SOA) and mobile applications. So, their usage is likely to expand dramatically in the next years. However, the heavyweight nature of service-orientation in terms of the messaging-overhead that is necessary in order to achieve interoperability and loose-coupling comes in contrast with the lightweight...
Currently, the realization of Service-oriented Architecture (SOA) implementation in the German banking industry varies, whereas some banks are in the adoption phase and others are already in the SOA operations phase. This paper focuses on specific implications concerning the SOA readiness and the SOA maturity of German banks as well as the role of SOA in the context of M&A scenarios. In particular,...
Cooperation mechanisms for agents monitoring service-based workflows are a means to address the increasing complexity of modern enterprise architectures. These mechanisms are inspired by existing biological mechanisms and extend an existing decentralized monitoring architecture in order to handle deviations from service level agreements autonomously. As the core cooperation mechanisms have been subject...
The creation of business processes by composing Web services has attracted considerable efforts with respect to integrating elements of Service Oriented Architectures within enterprise applications. If one of those atomic services fails, the whole business process does not necessarily have to fail, too, as it is possible to exchange the faulty service during runtime with another one which has the...
Pricing of services, especially in a SOA and grid environment with contractual relationships gain importance in recent years. For the resource planning, i.e. the allocation and orchestration of existing services, service pricing has a major influence. An orchestrator of services may face various pricing models from different service providers with e.g. long-term or short-term contracts, fixed or variable...
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