1,720,975 research outputs found
Development Of Software System For Detecting Defective Symbol On IC Chip Using Matrox Imaging Library
Full text linkIn semiconductor fabrication process, symbol or label inspection is one of the main
processes that needs to be considered seriously. Errors may occur during the printing
process of label or name on the integrated circuit chip (IC). If this occurs, the IC chip
may have a wrong name. This will affect the credibility of the company who produces
the IC chips. The problem mentioned above can be solved by providing a reliable
detection system that is able to detect the errors printed on the IC chip.
The symbol detection system that currently being implemented by the semiconductor
industry suffers from over killed and escapes problems. This project presents the
development a software system, which capable of detecting the defective characters
printed on the IC chip using Active Matrox Imaging Library Release 7. The proposed system has an adjustable reading level that can solve the overkilled and escaped
problems. It consists of a graphical user interface module, an inference engine, an image
database, an ActiveMIL ActiveX control module, a Matrox Imaging Library module, an
input image, and an output image. The proposed system is written in Visual Basic
version 6 and it is interfaced with Active Matrox Imaging Library.
The proposed system also has learning capability. It can store up to two different IC
images at one time. The system was designed for off-line operation. The test results
demonstrated that the proposed system performs according to its functions. It achieves
100% detection rate
Automated data acquisition system for measurement resistivity using Van Der Pauw technique
No full textThis paper presented an automated data acquisition system for resistivity measurement by Van Der Pauw method (1). The system designed to measure the resistivity of superconductor at room temperature and low temperature. For low cost efficient measuring tool we integrated equipment standard such as I/O cards, sensors, constant current source and digital multimeter. This automated data acquisition system was written in Turbo Pascal
Transformerless Power Converter For Grid-Connected PV System With No-Ripple Input Current And Low Ground-Leakage Current
No full textThe application of boost converters is highly favored
in PV module integrated converter (MIC) systems.The conventional boost converter operating in continuous inductor-current mode (CICM),however,has a pulsating, high-ripple input current,which causes power loss and decreases the energy flowing from non-linear sources like the PV panel.Therefore,this paper proposes a new modified boost converter that has a no-ripple input current.The proposed converter uses a series of input inductance to produce zero-ripple input current during continuous
inductor-current mode,without any LC or C filter elements.It is capable of high power-conversion efficiency for the whole system without the use of any
transformer or galvanic isolation components.In addition, this proposed boost converter is integrated with an H-Bridge inverter for a transformerless PV grid-connected system.The issue of electrical safety of the high ground-leakage current (due to the parasitic capacitance of the PV panel and frame and lack of galvanic isolation) is resolved by bipolar SPWM technique in the H-Bridge inverter,without any additional hardware.The proposed DC-AC transformerless inverter grid-connected PV system, which has a new modified boost converter and bipolar H-Bridge inverter,is verified by a 1-kW hardware prototype simulated and validated by experiment.The results show zero-ripple input current,high power-conversion efficiency,near-unity power factor,low current-THD,and low ground-leakage current
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
