1,410 research outputs found
Context Aware Multisensor Image Fusion for Military Sensor Networks using Multi Agent System
This paper proposes a Context Aware Agent based Military Sensor Network
(CAMSN) to form an improved infrastructure for multi-sensor image fusion. It
considers contexts driven by a node and sink. The contexts such as general and
critical object detection are node driven where as sensing time (such as day or
night) is sink driven. The agencies used in the scheme are categorized as node
and sink agency. Each agency employs a set of static and mobile agents to
perform dedicated tasks. Node agency performs context sensing and context
interpretation based on the sensed image and sensing time. Node agency
comprises of node manager agent, context agent and node blackboard (NBB).
Context agent gathers the context from the target and updates the NBB, Node
manager agent interprets the context and passes the context information to sink
node by using flooding mechanism. Sink agency mainly comprises of sink manager
agent, fusing agent, and sink black board. A context at the sensor node
triggers the fusion process at the sink. Based on the context, sink manager
agent triggers the fusing agent. Fusing agent roams around the network, visits
active sensor node, fuses the relevant images and sends the fused image to
sink. The fusing agent uses wavelet transform for fusion. The scheme is
simulated for testing its operation effectiveness in terms of fusion time, mean
square error, throughput, dropping rate, bandwidth requirement, node battery
usage and agent overhead
Tetanus trismus in a 2 year old child: Case report
Tetanus is still a major cause of mortality and morbidity in developing countries. It occurs in children mainly in the unimmunized, due to parental ignorance and objection to vaccination. This potentially fatal disease caused by a neurotoxin, tetanospasmin released from wounds infected with Clostridium tetani, an anaerobic gram–positive bacillus. As tetanus becomes less common, cases are likely to be misdiagnosed or go unrecognized. In this case report, we present a case of tetanus in a partially immunized 2 year old girl who presented with trismus. She was treated with the recent recommendations and adequate supportive care. Detection of tetanus at a very early stage can favor lifesaving interventions. Trismus, infected wound and partially immunized/unimmunized status of a child were the key features leading to the prompt diagnosis and early treatment
Phase properties of a new nonlinear coherent state
We study phase properties of a displacement operator type nonlinear coherent
state. In particular we evaluate the Pegg-Barnett phase distribution and
compare it with phase distributions associated with the Husimi Q function and
the Wigner function. We also study number- phase squeezing of this state.Comment: 8 eps figures. to appear in J.Opt
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