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The synchronization competitive processes of the modeling and design of Flexible Manufacturing System (FMS) is propose to solve the deadlock problem for a class of Petri nets, which is used Systems of Simple Sequential Processes with Resources (S3PR) net. In this paper presents a deadlock prevention method of a class of FMS, where the unmarked siphon in their Petri net models causes the deadlocks...
We present an evaluation of the accuracy of an adherence monitoring add-on device (SmartTurbo v2.0, Nexus6 Limited, Auckland, New Zealand) designed to fit a commercial inhalation device (Turbuhaler®, dry powder inhaler, AstraZeneca). The evaluation has been based on simulated reallife placebo usage by 11 patients and carried out during a 12 day period. The simulated usage covered low and high inhalation...
The emergence of Mobile Ad-hoc Clouds (MACs) promises more effective and collaborative elastic resource-infinite computing. However, the highly dynamic, mobile, heterogeneous, fractionized, and scattered nature of computing resources coupled with the isolated non-cooperative nature of current resource management systems make it impossible for current virtualization and resource management techniques...
Time Division Multiple Access (TDMA) MAC protocol in WiFi-based Long Distance (WiLD) networks has proved to be suitable solution in supporting long distance communications. Open source Atheros driver in Linux environment is found to be a flexible platform for implementing TDMA in WiLD networks. The earlier developments over this open source driver is limited to 802.11 a/b/g standards. But, ath9k device...
High-performance applications whose structure changes dynamically during execution are extremely complex to develop, maintain and adapt to new hardware. Such applications would greatly benefit from easy reuse and separation of concerns which are typical advantages of component models. Unfortunately, no existing component model is both HPC-ready (in terms of scalability and overhead) and able to easily...
We demonstrate real-time, in-service, digital signal analysis of 10 Gbit/s data using a 1.2 Tbit/s burst-mode digital processor. The processor comprises a time-stretch front-end and a custom data acquisition and real-time signal processing back-end. Experimental demonstration of real-time, in-service, signal integrity analysis of streaming video packets at 10 Gbit/s is presented.
The area of the state of Oregon has 98,381 square miles, which is the 9th largest in United States. Its population ranks 27th in United States, and most of its population residents in the Willamette valley, a narrow area north to Portland and south to eugene and home to eight of ten most populous cities in Oregon. This implies that most of Oregon are rural areas. It is necessary to design and deploy...
Mobile Ad hoc Networks (MANETs) are prone to a variety of attacks due to their unique characteristics like dynamic topology, open wireless medium, absence of infrastructure, multi hop nature and resource constraints. A node in MANET acts not only as an end terminal but both as router and client. In this way, multi-hop communication occurs in MANETs and thus it becomes much more difficult task to establish...
Popularity ranking of Internet services is an important metric for network operators, because it enables mid- to-long term planning of their network facilities and root cause analysis for unexpected traffic. The service-oriented traffic monitoring is much helpful to infer the popularity, hence it has been gathering much attention from both researchers and practitioners. Lately, service identification...
-This paper introduces a novel spectrum monitoring algorithm for Orthogonal Frequency Division Multiplexing (OFDM) based cognitive radios so that the primary user activity can be detected during the secondary user transmission. The presented technique fully utilizes the performance of both primary and secondary networks. This is done by sensing the variations in signal power over a number of reserved...
Several studies have been attempted on human walking assistance using exoskeleton robots. To achieve the effective walking assistance with a variety of user motions, the robot behaviors need to be coordinated with both predicted user motions and the environment spatiotemporally. In this paper, we study how movement prediction and temporal synchronization can be beneficial for walking assist exoskeletons...
Parallel file systems are often characterized by a layered architecture that decouples metadata management from I/O operations, allowing file systems to facilitate fast concurrent access to file contents. However, metadata intensive workloads are still likely to bottleneck at the file system control plane due to namespace synchronization, which taxes application performance through lock contention...
Information about the frequency deviation is critical to reliable and stable operation of the power grid. Current wide-area power grid monitoring systems consist of Phasor Measurement Units (PMUs) at both high-voltage transmission level and low-voltage distribution level, but are generally unsatisfactory for large-scale deployment over highly distributed microgrids in individual households and local...
In this paper we propose a wireless sensor network (WSN) designed for landslides monitoring and risk management. The WSN is self-organizing, has fault tolerance capabilities, and its behavior is driven by the events to be monitored, to guarantee fast deployment, robustness in harsh environments, and very long lifetime. Data collected by sensors are delivered through the network to a remote unit (RU)...
In expanding the vision of an all-digital SATCOM terminal, the CERDEC Space & Terrestrial Communications Directorate (S&TCD) sponsored a digital-IF working group focused on creating a core digital IF architecture for strategic SATCOM terminals and defining a series of modular open standard digital interfaces (OSDI). This paper describes that Future Advanced SATCOM Technology (FAST)...
A non-blocking implementation of a concurrent object is an implementation that does not prevent concurrent accesses to the internal representation of the object, while guaranteeing the deadlock-freedom progress condition without using locks. Considering a failure free context, G. Taubenfeld has introduced (DISC 2013) a simple modular approach, captured under a new problem called the it fair synchronization...
Nowadays, mobile applications/devices have become the trends, especially, when they were gradually shifted from basic communication services to supporting more sophisticated service provisioning. Mobile applications are usually very light, are nowadays likely to be often connected to the Internet, and can be used quite easily. However, these applications exhibit some challenges related to limited...
Privacy and security are major issues in MANET, especially when used in sensitive areas. Secure routing protocols have been developed/proposed by researchers to provide security and privacy at various levels. ALARM protocol (Anonymous Location Aided Routing in MANET) provides both privacy and security features including confidentiality, authentication and authorization. Location based routing is based...
To provide a navigational tool to show a building's interior and other related information, we propose a three-dimensional computer graphics (3DCG) display system connected to the elevator's movements that can present a building's structural information. We altered the 3DCG's viewpoint according to the detected acceleration rate of the elevator and compared perceived acceleration rates through somatosensation...
This paper presents the creation of the Pong game on an FPGA using a computer display. The game is optimized to work on both LCD and CRT displays too. The game is implemented from scratch, it has the two pads drawn, the ball is also drawn and the background is painted in white. Everything is implemented in hardware on FPGA, so this way at the end we are able to create the ASIC with the game. The goal...
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