22 research outputs found
Maligne infantile Osteopetrose bei einem zweijährigen Jungen - eine Kasuistik
Decentralized magnetic indoor localization is a sophisticated method for processing sampled magnetic data directly on a mobile station (MS), thereby decreasing or even avoiding the need for communication with the base station. In contrast to central-oriented positioning systems, which transmit raw data to a base station, decentralized indoor localization pushes application-level knowledge into the MS. A decentralized position solution has thus a strong feasibility to increase energy efficiency and to prolong the lifetime of the MS. In this article, we present a complete architecture and an implementation for a decentralized positioning system. Furthermore, we introduce a technique for the synchronization of the observed magnetic field on the MS with the artificially-generated magnetic field from the coils. Based on real-time clocks (RTCs) and a preemptive operating system, this method allows a stand-alone control of the coils and a proper assignment of the measured magnetic fields on the MS. A stand-alone control and synchronization of the coils and the MS have an exceptional potential to implement a positioning system without the need for wired or wireless communication and enable a deployment of applications for rescue scenarios, like localization of miners or firefighters
Rationales for Support That African American Grandmothers Provide to Their Children Who Are Parenting Adolescents
An Analysis of Initiative Selection in Collaborative Task-Oriented Discourse
In this paper we propose a number of principles and conjectures for mixedinitiative collaborative dialogs. We explore some methodologies for managing initiative between conversational participants. We mathematically analyze specific initiative-changing mechanisms based on a probabilistic knowledge base and user model. We look at the role of negotiation in managing initiative and quantify how the negotiation process is useful toward modifying user models. Some experimental results using computer--computer simulations are presented along with some discussion of how such studies are useful toward building human--computer systems
Identification of a new inhibitor of essential division gene ftsZ as the kil gene of defective prophage Rac
Multi-proxy analysis in defining sedimentary processes in very recent prodelta deposits: the Northern Phlegraean offshoreexample (Eastern Tyrrhenian Margin)
A multi-proxy analysis of Volturno River
prodelta deposits in the outer shelf of Northern Phlegraean
margin (Eastern Tyrrhenian Sea) has been carried out to
reconstruct the sedimentary processes acting during recent
times. The late Holocene sediments were characterized
through Subbottom Chirp profiles coupled with sedimentological and petrophysical data. The chronostratigraphic framework was achieved by means of colorimetric parameter a* correlations with nearby dated marine sediment. A time interpretation of about 2,300 years BP is estimated for the sedimentary record collected in the
cores. Seismic stratigraphic analysis shows late Holocene
outer shelf deposits, characterized by fluid escape features
and small-offset faults. However, the undisturbed sedimentation and the preservation of an internal geometry at decimetre scale, as detected by the sedimentological and
petrophysical analysis, indicates a slow sliding without
sediment reworking for this sedimentological body. So far
a possible recent (\2,300 years BP) shear dominated
downward displacement of high water content sediments,
triggered by the occurrence of seismic activity, is inferred. Based on the depth-age conversion of the detected lithological features, a regular climatically driven change in the sediment supply of the prodelta depositional environment is suggested. The detection of spectrophotometry
correlations of Holocene shelf margin sediments, several
km apart, goes beyond the previous work and confirms
even for continental shelf area the potential value of
spectrophotometer data in high-resolution stratigraphic
correlations