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Total dose test results are presented for the Maxim 1257/1258 multi-channel ADC/DAC, and the Linear Technology LTC2378-20 low power SAR ADC. The paper discusses radiation testing challenges of complex mixed signal circuits.
Minimum performance specifications and testing methods for the evaluation of radiation portal monitors, also known as RPMs, are contained in this standard. These monitors are large-size permanently mounted-type instruments. These instruments are primarily designed for the detection of radioactive materials emitting gamma rays and neutrons. The specifications for general, radiological, environmental,...
The success of web services is changing the way in which software is designed, developed, and distributed. Services are in fact continuously re-designed and incrementally developed, released in heterogeneous and distributed environments. They are selected and integrated at runtime within external business processes. To ensure that a deployed service fulfils the QoS requirements, a Service Level Agreement...
Engineering performance-critical systems often requires manual, expensive fine-tuning of critical application parts such as start-up routines, authentication sequences and transactions. It is highly desirable to protect this investment by regression tests that indicate when performance characteristics such as memory usage or thread allocation change. While traditional testing techniques can be used,...
Due to network dynamics, performance tuning is often indispensable in network management. In this paper, we propose MOE, a framework integrating network performance monitoring, optimization and evaluation. This is a trial towards the top-down and systematic management of network performance. We validate MOE based on a typical scenario in the real network environment. Results show that MOE can collect...
This work develops an automated household utility power monitoring system and data logging in real-time. It utilizes the Arduino Uno Rev3 Microcontroller board intended for use in conjunction with the ATmega328 chip. For monitoring these parameters, it will be connected to a current transformer through the current and voltage sensor circuit. The system will convert these raw data to digital input...
Performing functionality testing in serviceoriented architectures is not a trivial task. The difficulty is especially the large number of components that may be present in a SOA such as brokers, providers, service registries, clients, monitoring tools, data storage tools, etc. Thus, in order to facilitate the process of conducting functional testing and capacity planning in service-oriented systems,...
Open water channels are used to distribute irrigation water to farms and they are large scale systems consisting of many interacting subsystems. The operational objective is a trade-off between a high level of service to farmers and a good water delivery efficiency, and it is well known that automatic control systems can help in achieving these objectives. However in practice, controllers may not...
In today's healthcare environment there is an increasing move towards mobile technology to meet clinical needs. Wireless communication is key to allowing medical devices to be able to move with the patient, while continuing to record and communicate patient data. Each application has demands on the connectivity infrastructure such as availability, reliability, and data payload capability. Furthermore,...
For problems existing in seed-metering device uniformity testing, use photoelectric detection technology on seeding uniformity testing. Its working principle is to use optical sensors to monitor the situation that seeds passing through the seed channel, records the cumulative number of seeds of each channel by counting chips and MCU and periodically send to the PC, obtaining relevant data such as...
The goal of this paper is to describe the development of an abnormal posture detection device intended for home use. The device uses two accelerometers placed in the cervical and lumbar regions of the spine and calculates the relative inclination of the cervical and lumbar planes. This inclination is used by the device to decide if the user has an anatomically correct or incorrect posture; in the...
Monitoring of posture allocations and activities enables accurate estimation of energy expenditure and may aid in obesity prevention and treatment. At present, accurate devices rely on multiple sensors distributed on the body and thus may be too obtrusive for everyday use. This paper presents a novel wearable sensor, which is capable of very accurate recognition of common postures and activities....
This paper presents an automated means to predicatively detect service degradation signatures or symptoms of VDSL (Very High Bit-rate Digital Line Subscriber) based on performance monitoring measurements. It describes a management structure and methodology for trouble sectionalization and isolation to verify and confirm problem locations. This paper also provides new computing techniques to determine...
Dependability evaluation techniques such as the ones based on testing, or on the analysis of field data on computer faults, are a fundamental process in assessing complex and critical systems. Recently a new approach has been proposed consisting in collecting the row data produced in the experimental evaluation and store it in a multidimensional data structure. This paper reports the work in progress...
Software-Based Self-Test (SBST) has emerged as an effective alternative for processor manufacturing and in-system testing. For small memory arrays that lack BIST circuitry such as cache tag arrays, SBST can be a flexible and low-cost solution for March test application and thus a viable supplement to hardware approaches. In this paper, a generic SBST program development methodology is proposed for...
The present paper deals with experimental results obtained by two years monitoring performed in Catania ENEL Solar Lab on two different Concentrating Photo-Voltaic (CPV) prototypes which use respectively triple junction cells and high efficiency c-Si cells. Results show comparison between the outdoor performances of both CPV modules and systems. The main technical problems reducing energy performances...
Assurance is an essential part of building any software system because it provides confidence and reduces the risks associated with system implementation. Assurance of service-oriented systems is similar to assurance of any distributed system. However, service-oriented environments have additional challenges because of their unique characteristics-reduced control, observability, visibility, and trust;...
The philosophy of testing relay protection systems has changed very little in most utilities. However the devices themselves have changed greatly. Testing for some devices has been called into question as no testing at all has been proposed. This paper reviews why we tested in the past and what methods were used. The paper further reviews future testing needs and strives to bring a resolution to the...
This paper provides insight into the ramifications of battery exhaustion Denial of Service (DoS) attacks on battery-powered mobile devices. Several IEEE 802.11 Wi-Fi, IEEE 802.15.1 Bluetooth, and blended attacks are studied to understand their effects on device battery lifetimes. In the worst case, DoS attacks against mobile devices were found to accelerate battery depletion as much as 18.5%. Also...
The Application Characterization System (ACS) allows console manufacturers and testers to see how different video game titles can stress a game console. With ACS, console power, temperature data, and thread usage are used in conjunction to monitor performance, GPU regression, characterization through video output formats and resolutions and Gauge R&R.
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