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.
Program analysis tools are essential for understanding programs, analyzing performance, and optimizing code. Some of these tools use code instrumentation to extract information at runtime. The instrumentation process can alter program behavior such as timing behavior and memory consumption. Time-sensitive programs, however, must meet specific timing constraints and thus require that the instrumentation...
Power quality is an important subject to correctly dimension protection devices and back up power systems for next generation of telecommunication network. In this paper it is presented an overview of some power quality data obtained using integrated instruments put inside Chloride's UPS, widely distributed in the world and active for quite a few years, allow statistical evaluations to derive some...
TCP is the prevalent, reliable transport control protocol. It is designed for wired network. However, when it is used in heterogeneous networks, TCP performance will degrade, especially for timing mechanism. This paper analyzes typical timing estimating arithmetic, and then proposes a modified TCP timing mechanism and its performance are investigated through simulations. Comparing with tradition timing...
The basic principle of the space vector pulse width modulation (SVPWM) is introduced and the realized method is given in the Simulink environment in details. Then the SVPWM algorithms are researched in-depth by simulation analysis and verification. On this basis, the experiment results are acquired by using the advanced experimental equipment dSPACE.
Parallel test technology is a key technology of the USA DoD next generation of ATS, and it is necessary for the general-purpose automatic test system (GPATS) to adopt parallel test mode to realize numerous complicated testing tasks for multiple UUTs. This paper proposes a design of parallel test system based on Client/Server (C/S) mode to make up for some deficiencies in existing parallel test systems...
The design of a full azimuth coverage localization system is elaborated. The present effort is focused on the interference direction of arrival estimation and its power level measurement. The developed system is based on the 8 inputs x 8 outputs Butler matrix driven by a cylindrical array. The 8 outputs of the Butler matrix are measured by a phase discriminator and the resulting signals are appropriated...
Vertical integration is said to provide an advantage over non-integrated firms. Therefore, regulatory agencies are strongly interested in separating former fully integrated monopolies in energy markets. In this paper we analyse whether - besides vertical integration - incumbents experience a first-mover advantage in the sense that customers have to switch from an incumbent's standard contract. Customers...
Musical performance with digital instruments has become a common practice today, and many digital instruments came to be used in Desk Top Music (DTM), live performance, etc. These performances are recorded as digital contents, and circulated actively through network and electronic media. However, the spread of digital contents causes the problem of illegal duplication and distribution, so that digital...
The World Wide Web (WWW) has continued to grow at very rapid speed in both the sheer volume of traffic and size, complexity of web sites. Web analytics industry also has been growing rapidly. Web analytics is to analyze web log files to discover accessing patterns of web pages. In our work described in this paper, we identify factors which can affect the continuous usage intention of a firm using...
In this paper, the functionality of a vector network analyzer VNA is implemented using the concept of software defined measurements (SDM) [1], called SDM-VNA. A general measurement set-up based on a vector signal generator (VSG) and a vector signal analyzer (VSA) is used. The set-up allows complete linear characterization using only one receiver. A calibration procedure to remove the systematic errors...
Horus is a prototype environment for the support of assertion-based design. Formal properties, written in a standard (PSL or SVA) language, are automatically translated into synthesizable IP's, using a modular, efficient and proven correct method. The resulting monitors (for observing asserted properties) and generators (for generating constrained test vectors) are connected to the design under test,...
This paper presents an instrumentation amplifier input circuit exhibiting a high degree of immunity against conducted common-mode electromagnetic interferences (EMI) which are injected into its inputs. The proposed input circuit achieves a high common-mode EMI rejection by minimizing the impact of mismatch. A case study illustrates the theoretical analyses, and evaluates the superior performances...
With technology scaling, vulnerability to soft errors in random logic is increasing. There is a need for on-line error detection and protection for logic gates even at sea level. The error checker is the key element for an on-line detection mechanism. We compare three different checkers for error detection from the point of view of area, power and false error detection rates. We find that the double...
This paper reports the design of an excavator's control panel with a sensory engineering approach. Nine panel designs were evaluated using the semantic differential method. Results showed the strength and weakness of each design, which can be incorporated by the designers into the final design.
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.