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There are many commercially available rheometric instruments that link bolus formulation and flow characteristics to quantitative engineering metrics. However, the exploration of these relationships does not necessarily capture the macroscale of bolus transport or arguably the most important interaction: what pressure the alimentary tract imparts on a bolus during swallowing, and to what end is viscosity...
Testing large complex distributed applications in cloud environments is a complex task. Developing tests to assess these kind of applications is time-consuming, and requires adapting and integrating many different tools for different purposes. The main objective of this demonstration is two-folded. First, it introduces ElasTest, a flexible open source testing platform aimed at simplifying end-to-end...
Test Automation Platform©1 (TAP) is a software system that developers can use to test their own hardware or software (or combinations of both). Developers create TAP test plans by combining and configuring individual test steps in a GUI. Developers can also develop their own test steps with .NET to better suit their needs. Since (manual) programming is always prone to errors, TAP users need...
With the prevalence of Android-based mobile devices, automated testing for Android apps has received increasing attention. However, owing to the large variety of events that Android supports, test input generation is a challenging task. In this paper, we present a novel approach and an open source tool called EHBDroid for testing Android apps. In contrast to conventional GUI testing approaches, a...
Computer Science 2 is one of the core elements of any computer science program; however, there has been little progress towards the development of a concept inventory for this key introductory course for CS majors. Plans to address this gap using the Delphi method are presented. Instructors and researchers with knowledge and experience of CS2 are being recruited to help identify concepts from CS2...
In this paper some popular techniques of analog-to-digital converter parameters measurement are compared. The structure of the proposed software-hardware complex and experiment procedure are described. Experimental results are presented.
Symbolic execution has attracted significant attention in recent years, with applications in software testing, security, networking and more. Symbolic execution tools, like CREST, KLEE, FuzzBALL, and Symbolic PathFinder, have enabled researchers and practitioners to experiment with new ideas, scale the technique to larger applications and apply it to new application domains. Therefore, the correctness...
In this work, a wearable instrumented smart clothes with an accelerometer sensor embedded on the upper abdomen close to the diaphragm was used to detect respiration of subjects. A detection algorithm was proposed and verified with 30 testing cases on male and female subjects separately. More than 97% of accuracy is achieved by comparing with the detection results from respiratory belt conducted simultaneously...
Modern operating systems (OSs) consist of numerous interacting components, many of which are developed and maintained independently of one another. In monolithic systems, the boundaries of and interfaces between such components are not strictly enforced at runtime. Therefore, faults in individual components may directly affect other parts of the system in various ways. Software fault injection (SFI)...
Analog-to-Digital Converters (ADCs) are becoming increasingly common to be involved in most systems in Integrated Circuits (ICs). Thanks to the rapid growth of modern semiconductor technology, the performance of the data converters becomes better and better. One of the difficulties being faced is to be able to accurately and cost-effectively test the continually better performance ADCs. The conventional...
Many analog and mixed signal devices have very few or no digital pins. In spite of this, these products can be highly complex internally, including significant digital content. They may contain various sensors and control circuitry, which react to a variety of conditions to control the power profile of the part and its environment. These factors can make these devices very challenging to test. They...
Spectral testing and linearity testing are two important categories in ADC testing. The sampling clock quality is a crucial factor in ADC spectral testing. The cumulative clock jitter of the sampling clock generates power leakage in the fundamental component of the ADC output spectrum, and the random clock jitter increases the noise floor of the ADC output spectrum, which corrupts the spectrum result...
High resolution ADCs employing histogram test for linearity measurement suffer from high test time. This test time is an important factor in determining the overall cost of the ADC. While alternate test methods for linearity checks in the presence of static errors have been proposed, no low cost test method for the detection of dynamic errors has been reported so far. This paper analyzes dynamic errors...
High-performance communication interfaces in modern complex electronic systems bring new challenges for board-level manufacturing test. Various means of calibration and error-correction that are incorporated into high-speed protocols tend to hide manufacturing flaws thus making comprehensive testing be an extremely hard task. Links transmitting at gigabit rates are especially susceptible to so-called...
To utilize the proper test techniques that expand our test and diagnosis process we should regularly evaluate and integrate new devices and new techniques. Willingness to embrace change is the major requirement for successful technology integration. Test technology is continuously and rapidly evolving. It is an ongoing process and demands continual research and understanding. Effective integration...
This paper presents a test system for testing efficiency of single-suction centrifugal electric pumps for quality control in a manufacturer's production line. The proposed system based on testing an individual pump for an expected total head provides automatic test procedures to be conducted in accordance with the requirements specified in the Thai Industrial Standard (TIS) 2618-2557. The hardware...
Joint E3 test procedures are being developed for DoD ordnance systems by the Joint Ordnance Commander's Group (JOCG). Originally tasked to develop Joint procedures for HERO (MIL-HDBK-240), the JOCG is writing procedures for all other E3 ordnance related tests. Recently, JOTP-062 was developed and approved to ensure common test methods for Personnel-Bourne Electrostatic Discharge (PESD) and Helicopter-Bourne...
A 12-bit 32nm SOI CMOS pipeline ADC clocked at 200 MSps was tested at LBNL with the MilliBeam™ technique and showed no upsets with LET up to 30.9 MeV·cm2/mg (Kr), while 1-sample SETs up to 600 LSB in amplitude were observed with broad-beam exposure at TAMU with 0°, 60° incidence angles (Xe and Au), and LET up to 170 MeVcm2/mg.
Intersil has developed a family of radiation-hardened, high-voltage, high-precision analog parts in a complementary bipolar process on bonded-wafer SOI. Parts in this process, called PR40, include low-noise precision opamps, bandgap voltage references and a temperature sensor.
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.
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