The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Justified and complete verification for hardware designs is a critical step as industrial hardware designs becomes more and more complex. Moreover, one of the most important aspects of verification is coverage which monitors during simulation which design specification, features and also RTL code area is being covered. Following how important coverage is, most hardware verification tools provide different...
Post hemiparetic stroke an individual may face difficulty performing bimanual tasks due to an asymmetry in their arms' strengths. Here, we determined whether participants with a strength asymmetry were impaired bi-directionally when matching torques between arms (i.e., paretic arm matches non-paretic arm, non-paretic arm matches paretic arm). Six participants with chronic hemiparetic stroke and four...
The problem of evaluating reliability of telecommunication systems in general, and their components is considered. The method of forecasting the reliability of a telecommunications system designed according to the results of stress testing is proposed. The essence of the proposed method is to use the emissions of a random process as a diagnostic parameter that displays the trajectory of a monitored...
This paper is based on two decades of experience with continuous monitoring of Partial Discharge (PD) in medium voltage equipment including Rotating Machines. The technology uses multiple sensors distributed along monitored objects and 1 – 20 MHz frequency range. It allows for additional noise reduction and for localizing of PD activity sources. The importance of continuous PD monitoring vs. periodic...
Outages within the paper industry lead to significant costs to operators. To reduce unplanned outage and losses condition monitoring (CM) techniques can be implemented to determine asset health and help target maintenance where it is most required. The challenges faced by the paper industry to implement condition based maintenance (CBM) on their medium voltage (MV) and high voltage (HV) networks and...
Accurate training on electronic measurements can be obtained while experimenting with real sensors, electronic circuits and equipments. The paper presents an experimental system that allows the study and testing for two ultrasonic sensors, the remote programming for one of them and the monitoring of switching output for each sensor. A programmable logic controller performs the sensor remote programming...
Identifying anomalous events in the network is one of the vital functions in enterprises, ISPs, and datacenters to protect the internal resources. With its importance, there has been a substantial body of work for network anomaly detection using supervised and unsupervised machine learning techniques with their own strengths and weaknesses. In this work, we take advantage of the both worlds of unsupervised...
Ratings, construction, and testing of dead-front control switchboards containing, but not limited to, devices such as switches, control devices, instrumentation, metering, monitoring, alarms, annunciators, protective and auxiliary relays, and regulating devices and accessories are covered in this standard. It includes, but is not specifically limited to, switchboards for the control and protection...
Hajj is defined as a yearly Islamic pilgrimage to the holy place, Makkah. It is a religious obligation for Muslims who are financially and physically capable to perform. Hajj is one of the five pillars of Islam. The gathering of people during Hajj can be considered as the largest yearly gathering in the world. Every year, thousands of Muslims from all over the world will gather at the holy place during...
The article deals with the condition estimation of 6-10 kV cable lines (CL) with impregnated paper insulation (IPI) taking into account their length and operational reliability measures according to failure statistics. The subject under study is urgent because of the lack of reasonable insulation diagnostics of CL. The article theoretically justifies the CL diagnostics with non-destructive methods...
Boolean network tomography is a powerful tool to infer the state (working/failed) of individual nodes from path-level measurements obtained by egde-nodes. We consider the problem of optimizing the capability of identifying network failures through the design of monitoring schemes. Finding an optimal solution is NP-hard and a large body of work has been devoted to heuristic approaches providing lower...
The objective of this paper is to extend the applicability of the GLR method to a wide range of practical systems. Most real systems are nonlinear, multivariate, and are best represented by input-output type of models. Kernel partial least squares (KPLS) models have been widely used to represent such systems. Therefore, in this paper, kernel PLS-based GLR method will be utilized in practice to improve...
This paper shows the strategy and results of the simulation of the Train integrity determination system into the on-board ETCS. It first shows the Smart Train Positioning System (STPS), a GNSS based on-board system that determines the the train integrity. Then, scenarios are derived for two different routes. After that, the test setup based on the ETCS on-board unit virtual laboratory is explained...
Rail health monitoring plays an important role in the railway system, and how to accurately obtain the rail state is very significant for the railway safety. This paper proposes an improved method of rail health monitoring based on convolutional neural network (CNN) and probability analysis of multiple acoustic emission (AE) events. By tensile testing machine, AE signals with safe and unsafe states...
Dynamic Software Product Line (DSPLs) based Systems are capable of adapting inresponse to changes concerning their observations at runtime in order toexhibit appropriate behavior. The observation space and the variability in theconfiguration space is usually known at design time. However, running a set oftests with all combinations of configuration and observation from these spacesis likely to be...
This paper aims to present a new method for automated testing of industrial equipment, used primarily in the automotive field. The underlying concept of this work consists in developing an application to test the equipment (DUT — device under test) that automated tests need to be performed on, from the point of view of the hardware system, and in terms of the software loaded on such a device. The...
As many automated test input generation tools for Android need to instrument the system or the app, they cannot be used in some scenarios such as compatibility testing and malware analysis. We introduce DroidBot, a lightweight UI-guided test input generator, which is able to interact with an Android app on almost any device without instrumentation. The key technique behind DroidBot is that it can...
Dynamic analysis of structures plays an important role in designing civil engineering structures. Increasing population density and limited land availability have led to build taller, lighter and hence slender structures which attract high wind forces. Thus, there is an ever-growing demand for testing and monitoring dynamic responses of structures to understand performance under dynamic loading and...
This paper considers two approaches for detecting and classifying undesirable events in offshore naturally flowing wells. The operation of an oil well requires many decisions that can avoid production losses and additional costs. Two data-based methods are proposed using k-nearest neighbors, sliding windows and time multiscale. The parameters required by these classifiers are tuned using data from...
Software Testing is an essential aspect to ensure software quality, reliability and consistent user experience. Digital applications such as mobile app usually follow rapid software delivery which consists of various releases. It typically uses insights from the development data such as defects, test logs for test execution optimization. Once the application is released and deployed, there is rich...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.