Commutation Sparking Image Monitoring for DC Motor

2012 ◽  
Vol 134 (2) ◽  
Author(s):  
Fei Hu ◽  
Qingbo He ◽  
Jianping Wang ◽  
Zhigang Liu ◽  
Fanrang Kong
Keyword(s):  
Dc Motor ◽  
Characteristic Parameters ◽  
Image Preprocessing ◽  
New Approach ◽  
Image Processing Techniques ◽  
The Status ◽  
Image Monitoring ◽  
Motor Condition ◽  
Processing Techniques ◽  
The Relationship

As one of the most important parameters in evaluating the status of a DC motor, commutation spark has been widely used in condition monitoring and fault diagnosis. A new approach using image processing techniques on the commutation spark has been proposed. Advantageous over other methods using partial spark information, the details about the motor condition can be comprehensively retained and extracted from the sparking images. The sparking images were obtained by the cameras, which were fixed at the certain sites in DC motor beforehand. The images were processed through the sparking image preprocessing, segmentation, enhancement, and feature extraction. Comparing the characteristic parameters of the sparking image with the result of the subjective grading, the relationship between the parameters and the sparking grades had been analyzed to monitor the DC motor. The effectiveness had been demonstrated by application examples.

scholarly journals A new approach for breast abnormality detection based on thermography

2018 ◽  
Vol 2 (3) ◽  
pp. 245-254 ◽  
Author(s):  
Chebbah Nabil Karim ◽  
Ouslim Mohamed ◽  
Temmar Ryad
Keyword(s):  
Breast Cancer ◽  
High Performance ◽  
Support Vector ◽  
Svm Classifier ◽  
Abnormality Detection ◽  
Public Database ◽  
New Approach ◽  
Image Processing Techniques ◽  
Breast Abnormality ◽  
Processing Techniques

Breast cancer is one of the most common women cancers in the world. In this paper, a new approach based on thermography for the early detection of breast abnormality is proposed. The study involved 80 breast thermograms collected from the PROENG public database which consists of 50 healthy breasts and 30 with some findings. Image processing techniques such as segmentation, texture analysis and mathematical morphology were used to train a support vector machine (SVM) classifier for automatic detection of breast abnormality. After conducting several tests, we obtained very interesting and motivating results. Indeed, our method  showed a high performance in terms of sensitivity of 93.3%, a specificity of 90% and an accuracy of 91.25%. The final results let us conclude that infrared thermography with the help of an adequate automatic classification algorithm can be a valuable and reliable complementary tool for radiologist in detecting breast cancer and thereby helping to reduce mortality rates.

ENHANCEMENT TECHNIQUES FOR MRI HUMAN SPINE IMAGES

2015 ◽  
Vol 77 (6) ◽  
Author(s):  
Aqilah Baseri Huddin ◽  
W Mimi Diyana W Zaki ◽  
Agnes Chung Wai Mun ◽  
Ling Chei Siong ◽  
Hamzaini Abdul Hamid
Keyword(s):  
Magnetic Resonance Image ◽  
Discrete Wavelet ◽  
Mr Images ◽  
Image Preprocessing ◽  
Image Processing Techniques ◽  
Human Spine ◽  
Human Soft Tissue ◽  
Herniated Disk ◽  
Processing Techniques

The quality of Magnetic Resonance Image (MRI) determines the accuracy of clinical diagnosis. It provides information about the human soft tissue anatomy. MRI of spine is used by the physicians to evaluate any presence of diseases including slipped disk, herniated disk, trauma and disk degeneration. Existence of noises and artifacts can degrade the quality of the MR images. Thus, appropriate image processing techniques may help to improve the quality of the acquired image. Preprocessing is usually done to remove the noise, enhance an image boundary and adjust the image contrast. Current techniques to enhance and reduce noise in MRI human spine are discussed and a method using discrete wavelet transform to enhance the MRI of human spine is proposed. The resultant images are evaluated quantitatively. This study shows that the proposed method has better results as compared to other existing method based on evaluation tests. 

scholarly journals Phonetics and orthoepy: Status, object and tasks of two disciplines

2020 ◽  
Vol 17 (4) ◽  
pp. 571-581
Author(s):  
Maria L. Kalenchuk ◽  
Keyword(s):  
Sound Level ◽  
Russian Language ◽  
Sound System ◽  
New Approach ◽  
Number Of Factors ◽  
The Status ◽  
Points Of View ◽  
Definition Of ◽  
The Relationship ◽  
The Russian Language

It is known that two linguistic disciplines — phonetics and orthoepy — coexist on the sound level of the Russian language. The question of the relationship between the status, object and tasks of these sections as independent linguistic disciplines is debatable. In the works of modern scientists, two main approaches to the definition of phonetics and orthoepy can be found. Some linguists traditionally believe that both sections of the science of spoken speech study the same language material, but from different angles. Others attempt to differentiate the areas of responsibility of phonetics and orthoepy, showing that they operate in principle with different sound facts. The article formulates and analyzes these points of view and offers a new approach that allows not to contrast phonetics and orthoepy, but to combine them on the basis of the principle of positional structure. The implementation of a phoneme under the action of an orthoepic regularity is probabilistically predicted by a number of factors of different nature — phonetic, lexical, grammatical, word-forming, graphic and sociolinguistic, which were previously proposed to be called orthoepic positions. These factors do not operate in isolation, but there is a complex hierarchical system of relationships between them. It is possible to provide a description of the sound system of the Russian language, in which pronouncing patterns are divided not into phonetic and orthoepic, but into positional and non-positional. The concepts of phonetic and orthoepic positions can either be combined into a single concept of pronouncing positions, or, while preserving the concepts of phonetic and orthoepic positions, the former can be considered as a particular manifestation of the latter, which removes the question of differences between phonetics and orthoepy.

A review of the status of satellite remote sensing and image processing techniques for mapping natural hazards and disasters

2009 ◽  
Vol 33 (2) ◽  
pp. 183-207 ◽  
Author(s):  
Karen E. Joyce ◽  
Stella E. Belliss ◽  
Sergey V. Samsonov ◽  
Stephen J. McNeill ◽  
Phil J. Glassey
Keyword(s):  
Remote Sensing ◽  
Image Processing ◽  
Emergency Services ◽  
Spatial Information ◽  
Current Status ◽  
Data Types ◽  
Image Processing Techniques ◽  
Rapid Acquisition ◽  
The Status ◽  
Processing Techniques

In the event of a natural disaster, remote sensing is a valuable source of spatial information and its utility has been proven on many occasions around the world. However, there are many different types of hazards experienced worldwide on an annual basis and their remote sensing solutions are equally varied. This paper addresses a number of data types and image processing techniques used to map and monitor earthquakes, faulting, volcanic activity, landslides, flooding, and wildfire, and the damages associated with each. Remote sensing is currently used operationally for some monitoring programs, though there are also difficulties associated with the rapid acquisition of data and provision of a robust product to emergency services as an end-user. The current status of remote sensing as a rapid-response data source is discussed, and some perspectives given on emerging airborne and satellite technologies.

Greek Philosophy in the Twenty-first Century

2016 ◽  
Author(s):  
Sara Brill
Keyword(s):  
First Century ◽  
Greek Philosophy ◽  
New Approach ◽  
The Status ◽  
Twenty First Century ◽  
The Relationship

This article addresses contemporary efforts to understand how the earliest practitioners of philosophy conceived of the philosophic life. It argues that, for Plato, the concept of bios was a central, animating, and structuring object of philosophic inquiry. Concentration on the imagery Plato employed to draw bios into the purview of philosophic contemplation and choice points to interpretative avenues that further the aim of treating the dialogues as complex, integrated wholes, and offers a new approach to the question of the status of image-making in them. The article concludes with thoughts on how an exploration of bios might extend beyond Plato to Aristotle, via an examination of his treatment of the range of human and animal bioi, suggesting that such an examination clarifies the relationship between his analysis of the polis-dwelling animal and his broader investigation of living beings as such.

ImagIngDev: A New Approach for Developing Automatic Cross-Platform Mobile Applications Using Image Processing Techniques

2019 ◽  
Vol 63 (5) ◽  
pp. 732-757 ◽  
Author(s):  
Viviana Yarel Rosales-Morales ◽  
Laura Nely Sánchez-Morales ◽  
Giner Alor-Hernández ◽  
Jorge Luis Garcia-Alcaraz ◽  
José Luis Sánchez-Cervantes ◽  
...  
Keyword(s):  
Image Processing ◽  
Mobile Applications ◽  
Proof Of Concept ◽  
Application Development ◽  
New Approach ◽  
Image Processing Techniques ◽  
Imaging Tool ◽  
Development Tools ◽  
Cross Platform ◽  
Processing Techniques

Abstract The aim of this work is propose and describe ImagIngDev, a new approach for developing automatic cross-platform mobile applications using image processing techniques. As proof of concept, we presented ImagIng Tool and compared its performance with respect to similar cross-platform application development tools. Our main contribution to software development is ImagingDev, a new, intuitive and agile approach aimed at novice developers for automatically developing cross-platform mobile applications. Our proof of concept, ImagIng Tool, can generate mobile applications on four different software platforms: Android™, Windows Phone™, iOS™ and FirefoxOS™. Also, it relies on image processing techniques to recognize user interface design patterns (UIDPs) inside user interfaces, and generates the source code for cross-platform and multi-device applications. As proof of concept, we developed ImagIng Tool for automatic generation of cross-platform mobile applications by using image processing techniques. Results from the evaluation demonstrated that ImagIng Tool has attractive benefits if compared to similar cross-platform application development tools. Such benefits include higher learnability and usability. ImagIngDev and ImagIng Tool can effectively solve current problems in mobile applications development, such as automatic code generation for cross-platform mobile applications, since they allow users to generate cross-platform and multi-device mobile applications in an easy and intuitive way.

Three-Dimensional Structure of Rotavirus-Fab Complex

1990 ◽  
Vol 48 (1) ◽  
pp. 238-239
Author(s):  
B.V.V. Prasad ◽  
E. Marietta ◽  
J.W. Burns ◽  
M.K. Estes ◽  
W. Chiu
Keyword(s):  
Image Processing ◽  
Smooth Surface ◽  
Three Dimensional ◽  
Outer Shell ◽  
Dimensional Structure ◽  
Structural Studies ◽  
Cell Penetration ◽  
Electron Cryomicroscopy ◽  
Image Processing Techniques ◽  
Processing Techniques

Rotaviruses are spherical, double-shelled particles. They have been identified as a major cause of infantile gastroenteritis worldwide. In our earlier studies we determined the three-dimensional structures of double-and single-shelled simian rotavirus embedded in vitreous ice using electron cryomicroscopy and image processing techniques to a resolution of 40Å. A distinctive feature of the rotavirus structure is the presence of 132 large channels spanning across both the shells at all 5- and 6-coordinated positions of a T=13ℓ icosahedral lattice. The outer shell has 60 spikes emanating from its relatively smooth surface. The inner shell, in contrast, exhibits a bristly surface made of 260 morphological units at all local and strict 3-fold axes (Fig.l).The outer shell of rotavirus is made up of two proteins, VP4 and VP7. VP7, a glycoprotein and a neutralization antigen, is the major component. VP4 has been implicated in several important functions such as cell penetration, hemagglutination, neutralization and virulence. From our earlier studies we had proposed that the spikes correspond to VP4 and the rest of the surface is composed of VP7. Our recent structural studies, using the same techniques, with monoclonal antibodies specific to VP4 have established that surface spikes are made up of VP4.

A Survey on Detection and Classification of Brain Tumor Using Image Processing Techniques

2020 ◽  
pp. 967-973
Author(s):  
V. Deepika ◽  
T. Rajasenbagam
Keyword(s):  
Image Processing ◽  
Brain Tumor ◽  
Soft Tissues ◽  
Tumor Detection ◽  
Tumor Classification ◽  
Normal Brain ◽  
Image Processing Techniques ◽  
Normal Brain Function ◽  
Processing Techniques ◽  
The Brain

A brain tumor is an uncontrolled growth of abnormal brain tissue that can interfere with normal brain function. Although various methods have been developed for brain tumor classification, tumor detection and multiclass classification remain challenging due to the complex characteristics of the brain tumor. Brain tumor detection and classification are one of the most challenging and time-consuming tasks in the processing of medical images. MRI (Magnetic Resonance Imaging) is a visual imaging technique, which provides a information about the soft tissues of the human body, which helps identify the brain tumor. Proper diagnosis can prevent a patient's health to some extent. This paper presents a review of various detection and classification methods for brain tumor classification using image processing techniques.

Contemporary Qur'anic Studies in Iran and its Relationship with Qur'anic Studies in the West

2012 ◽  
Vol 14 (1) ◽  
pp. 45-72
Author(s):  
Morteza Karimi-Nia
Keyword(s):  
Islamic Law ◽  
Human Sciences ◽  
The West ◽  
Communications Technologies ◽  
Religious Learning ◽  
The Status ◽  
Islamic Republic Of Iran ◽  
Almost All ◽  
The Impact ◽  
The Relationship

The status of tafsīr and Qur'anic studies in the Islamic Republic of Iran has changed significantly during recent decades. The essay provides an overview of the state of Qur'anic studies in Iran today, aiming to examine the extent of the impact of studies by Western scholars on Iranian academic circles during the last three decades and the relationship between them. As in most Islamic countries, the major bulk of academic activity in Iran in this field used to be undertaken by the traditional ʿulamāʾ; however, since the beginning of the twentieth century and the establishment of universities and other academic institutions in the Islamic world, there has been increasing diversity and development. After the Islamic Revolution, many gradual changes in the structure and approach of centres of religious learning and universities have occurred. Contemporary advancements in modern sciences and communications technologies have gradually brought the institutions engaged in the study of human sciences to confront the new context. As a result, the traditional Shīʿī centres of learning, which until 50 years ago devoted themselves exclusively to the study of Islamic law and jurisprudence, today pay attention to the teaching of foreign languages, Qur'anic sciences and exegesis, including Western studies about the Qur'an, to a certain extent, and recognise the importance of almost all of the human sciences of the West.

Colonialism and the Highland Clearances

2017 ◽  
Vol 8 (1) ◽  
pp. 22-48 ◽  
Author(s):  
Iain Mackinnon
Keyword(s):  
Industrial Development ◽  
Comparative Approach ◽  
Indigenous Research ◽  
Internal Colonialism ◽  
New Approach ◽  
A Site ◽  
Relationship Of ◽  
The Relationship ◽  
Imperial State ◽  
Late Modern

This article employs a new approach to studying internal colonialism in northern Scotland during the 18th and 19th centuries. A common approach to examining internal colonial situations within modern state territories is to compare characteristics of the internal colonial situation with attested attributes of external colonial relations. Although this article does not reject the comparative approach, it seeks to avoid criticisms that this approach can be misleading by demonstrating that promoters and managers of projects involving land use change, territorial dispossession and industrial development in the late modern Gàidhealtachd consistently conceived of their work as projects of colonization. It further argues that the new social, cultural and political structures these projects imposed on the area's indigenous population correspond to those found in other colonial situations, and that racist and racialist attitudes towards Gaels of the time are typical of those in colonial situations during the period. The article concludes that the late modern Gàidhealtachd has been a site of internal colonization where the relationship of domination between colonizer and colonized is complex, longstanding and occurring within the imperial state. In doing so it demonstrates that the history and present of the Gaels of Scotland belongs within the ambit of an emerging indigenous research paradigm.

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