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Although white-box regression test prioritization has been well-studied, the more recently introduced black-box prioritization approaches have neither been compared against each other nor against more well-established white-box techniques. We present a comprehensive experimental comparison of several test prioritization techniques, including well-established white-box strategies and more recently...
Software defect localization is an important step in the process of fixing defects and is a necessary means to improve software quality. In the process of fixing defects, it is also the most time-consuming and laborious task to accurately locate the files where the defects should be fixed. In order to clarify the research progress in the field of defect localization, we introduce the key technologies...
In this paper we assess and evaluate the quality of t-way combinatorial test-suites using three different test-suite quality assessment methods. As t-way combinatorial test-suites reduce the input space of a program under test, we investigate how an increasing t affects the quality of the test-suite. There are some limitations of existing test-suite quality assessment methods e.g. the number of mutants...
Quinoa is an Andean grain with high protein content that has achieved, in recent years, a great acceptance in the international market. However, the presence of saponin and its toxicity in the grain surface makes necessary its elimination for human consumption. This article deals with the elimination of saponin in fluidized bed for the bitter Chimborazo quinoa, with an initial saponin content of 0...
This paper concentrates on the control of the pH value of a liquid using Ph Neutralization plant and to control the liquid level using a Split Range plant. The control methods used are PID control and FUZZY control. These two controllers are subjected to prototypes of both the process plants. The results are presented and the best controller is suggested. The whole programming is done using LabVIEW...
Present day launch vehicle telemetry systems require high resolution, precise data acquisition systems to accurately reveal the system performance in extreme environments. In order to achieve high resolution these data acquisition systems invariably use sigma delta ADCs. With the advent of IC technology it has been possible for chip manufacturers to integrate instrumentation amplifiers and Digital...
Analysis of voltage, hum, current, frequency etc., are the important parameters for hum monitoring. The method proposed here uses a couple of non audio signals from MAX4465 microphone of range 80–120V and frequency 50Hz. Based on the specifications given by the contactor here we designed a circuit for the parallel measurement of hum and the respective voltage. The hum is measured automatically using...
The testing process of a low noise RF pre-amp in most of the semiconductor fabrication industries is either fully manual or employs expensive test systems. An efficient and low cost automated testing system is elucidated in this paper. The design and development of the automated RF test system is realized. The whole process involves the development of an Automated Test System (ATE) and a software...
Current studies on software development either focus on the change history of source code from version-control systems or on an analysis of simplistic in-IDE events without context information. Each of these approaches contains valuable information that is unavailable in the other case. Our work proposes enriched event streams, a solution that combines the best of both worlds and provides a holistic...
In the study of the retinal diseases are nowadays available several kind of diagnostic tests. However, their diagnostic findings are typically images of anatomical portions of the eye obtained by a different optical method and, consequently, by presenting, each of them, a different resolution, rotation and angle of view. Moreover, each of these diagnostic images is useful to highlight only few aspects...
This paper explains the design of low cost multi-channel Data Acquisition (DAQ) hardware based on serial communication. The paper puts forward an overall scheme of the system involving the hardware and software design. The hardware design is based on microcontroller (AT89C51) and uses key ADC chip (ADC0808) to realize the acquisition of multichannel analog signals and software design is the implementation...
At present, a number of scientific experiments onboard the International Space Station (ISS) are being run with the use of Steerable Pointing Platforms (SPP). The use of SPP is especially important because of the existing constraints on the ISS attitude maneuvers [1]. Owing to low level of momentum available from Control Moment Gyros on the US orbital segment, the ISS flies in quasiorbital attitude...
Virtual instruments is a program that implements functions of an instrument by software which could replace the work of real instruments to save resources. The functions of these sensor-based systems are limited and they commonly cannot manage related information, such as sensors and monitoring objects, due to special requirements. The procedure of development and integration often suffers from low...
Objective: AWM42300V of Honeywell Inc. is a small-scale airflow sensor which allows using it in intelligent carry-on spirometer designing. There is a problem that this sensor (AWM42300V) measures airflows which are considerably smaller than breathing airflow. Thus, an estimate of airflow measurement is possible only when the bypass interconnection is used. Methods: During the working progress the...
Heuristic search is an important part of modern dynamic symbolic execution (DSE) tools, as heuristic search can be used to effectively explore the large program input space. Searching task remains one of several research challenges due to the fact that the input space grows exponentially with the increase of program size, and different programs may have very different structures. The challenge is...
New nurse training is a significant research subject. The aim of this study was to investigate effect of the video teaching method in the standardized training of new nurses in RenHe Hospital of China Three Gorges University. Firstly, 43 new nurses admitted to hospital in 2014 were set as the control group using traditional teaching methods to train and 50 new nurses who were admitted to hospital...
Automatic fault localization techniques are developed to assist software developers in program debugging. However, it is difficult to apply such techniques in practical usage. To bridge the gap between theory and practice, this paper introduces our work UnitFL, which integrates dynamic fault localization approaches with unit tests. Moreover, program slicing and dynamic program instrumentation techniques...
Active ECUs (Electronic Control Unit) in a hybrid car while it is charging leads to inefficient power usage and reduction in ECU lifetime. To solve this issue, AUTOSAR has suggested PN (partial networking). As per the AUTOSAR specification, ECUs which are not required to be kept active during battery charging must be shutdown. This project's aim is to analyze the robustness of the design suggested...
This study investigates the speed control of single-phase induction motor capacitor starting using an experimental work and simulation. Single phase induction motors are simple, robust and reliable and are used in enormous numbers especially in domestic and commercial application where 3phase supplies are not available. The laboratory work has been done and the results show performance of the motor...
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