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Multi-tiered memory systems, such as those based on Intel® Xeon Phi™processors, are equipped with several memory tiers with different characteristics including, among others, capacity, access latency, bandwidth, energy consumption, and volatility. The proper distribution of the application data objects into the available memory layers is key to shorten the time– to–solution, but the way developers...
Assisting teams of knowledge workers achieve common strategic and tactical goals is becoming an increasing priority as information analysis tasks become more complex. Tools to monitor and support individual workers, such as TaskTracer, demonstrated the potential for assisting individuals but there is a lack of tools for analyzing workflows and information needs at a collaborative level within enterprises...
Three sensors, pH, dissolved CO2, and a CTD with a dissolved oxygen sensor were co-located on a submerged platform connected to a buoy platform in the Saanich Inlet close to Patricia Bay near Sidney, British Columbia. The sensors were moored at a depth of 23 metres for one year continuous sampling deployment to assess the ability of these sensors to monitor the edge of a dynamic, dissolved inorganic...
Some factors that have increased cardiovascular incidents are sedentary lifestyle, poor eating habits, smoking, stress; hence the importance of continuously monitor cardiac activity in people. This research proposes the implementation of a wireless system to monitor the heart allowing visualization of the electrocardiogram (ECG) on a mobile device via Bluetooth (BT) technology and Arduino UNO board...
The correlation of performance bottlenecks and their associated source code has become a cornerstone of performance analysis. It allows understanding why the efficiency of an application falls behind the computer's peak performance and enabling optimizations on the code ultimately. To this end, performance analysis tools collect the processor call-stack and then combine this information with measurements...
The correlation of performance bottlenecks and their associated source code has become a cornerstone of performance analysis. It allows understanding why the efficiency of an application falls behind the computer's peak performance and enabling optimizations on the code ultimately. To this end, performance analysis tools collect the processor call-stack and then combine this information with measurements...
Stream processing is a compute paradigm that promises safe and efficient parallelism. Its realization requires optimization of multiple parameters such as kernel placement and communications. Most techniques to optimize streaming systems use queueing network models or network flow models, which often require estimates of the execution rate of each compute kernel. This is known as the non-blocking...
Device drivers often suffer from much more bugs than the kernel, so testing device drivers becomes more and more important and necessary. In software testing, runtime tracing is an important technique to monitor real executing procedures of the program. Meanwhile, runtime information can also assist the programmer to make more accurate analysis of the program, like verifying the correctness of code...
This paper describes the development of cost-efficient, innovative and interoperable ocean passive acoustics sensors systems deployable from multiple platforms in the European FP7 project NeXOS (Next generation Low-Cost Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management). The objective of the NeXOS project is to develop cost-effective, innovative,...
The Toroidal Field [TF] coil on Alcator C-Mod is a liquid nitrogen [LN2] cooled copper magnet with 120 turns. It can carry up to 250 kA and generate nominal fields of 8 Tesla. Each turn is made up of four straight segments: outside leg, top arm, inside leg, and bottom arm, 480 segments in all. Sliding felt-metal joints between adjacent segments make it possible to assemble and disassemble the magnet,...
Instead of employing traditional lecture-lab pedagogy to teach undergraduate instrumentation, an open-ended group design project based approach was used. In the approach, the project was assigned to the students in the first week of lectures and served as the foundation, motivation, and context for the entire course. Each group had a project mentor. Lectures and hands-on laboratories supported the...
Efficient virtual machines are becoming increasingly important in the academy and industry in general. Thus, it is important to develop new techniques for efficient program execution in such runtime environments. A specific problem in system virtual machines is the need to execute the guest architecture instruction set by the host architecture in an efficient manner. Dynamic Binary Translation (DBT)...
The incidence of cardiovascular diseases is rising, so more people are requiring cardiac services. The private service is very expensive; hence the public health sector capacity is exceeded to accomplish this demand. A proposal to solve this problem is the implementation of a wireless network based on Bluetooth (BT) for recording, monitoring and analysis of electrocardiographic signals (ECG). Three...
Google's Android operating system has become one the most popular operating system for hand-held devices. Dueto its ubiquitous use, open source nature and wide-spread popularity, it has become the target of recent mobile malware. In this paper, we present our efforts on effective security inspection mechanisms for identification of malicious applications for Android mobile applications. To achieve...
Messor, a simple but efficient towed vehicle have been built to obtain high-resolution data on the physical environment, phytoplankton, zooplankton, nekton and fish through a variety of sensors allowing multiple data acquisition with a near identical resolution in time and space. A multitude of towing tests have been undertaken to obtain a thorough understanding of vehicle behavior and work potential...
Software reliability can be greatly enhanced by using tools that can inspect and evaluate the runtime behavior and performance of a system, yet such tools are difficult to create. Aspect-oriented programming is a formal approach to instrumenting software that can ease this problem. This paper presents TEAMS, an AOP framework specifically tailored to supporting such instrumentation.
This paper presents the development of a module to monitor the general state inside of an artificial beehive. The physical variables that directly affect the health and production of the population were identified with its optimal ranges to stand surety for the stability of the bees. This document illustrates why the selected sensors to read these variables were chosen, how the information is acquired...
Runtime monitoring aims at analyzing the well-being of a system at run time in order to detect errors and steer the system towards a healthy behavior. Such monitoring is a complementary technique to other approaches for ensuring correctness, such as formal verification and testing. In time-triggered runtime monitoring, a monitor runs as a separate process in parallel with an application program under...
Under the framework of French R&D studies for Generation IV reactors and more specifically for sodium-cooled fast reactors (SFR); the CEA, EDF and AREVA have launched a joint coordinated research programme. This paper deals with the R&D sets out to achieve better inspection, maintenance, availability and decommissioning. In particular the instrumentation requirements for core monitoring and...
Water resources monitoring has become an important research topic because an unreasonable use of water resources results in the deterioration of water environment and affects the development of human beings and nature. The scheme of the hand-held multi-parameter water quality recorder based on the sensor of the YSI6600 was designed. Through the multi-parameter sensor of the YSI6600, the recorder can...
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