Conferences related to Deterioration

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2017 Annual Reliability and Maintainability Symposium (RAMS)

Tutorials and original papers on reliability, maintainability, safety, risk management, and logistics


2013 IEEE International Conference on Solid Dielectrics (ICSD)

ICSD is an interdisciplinary forum which provides a unique opportunity for researchers from industry, academia and research centers to come together to review their collective progress, consider the latest developments and discuss the future challenges in the area of solid dielectrics.

  • 2010 10th IEEE International Conference on Solid Dielectrics (ICSD)

    Interdisciplinary forum for the exchange and discussion of ideas, research results and practical phenomena related to solid dielectrics exposed to electric fields and other stresses. The conference is an opportunity for physicists, chemists, material scientists and electrical engineers who are engaged in research, experimentation and practice in this field to come together, review collective progress, consider the latest developments and discuss the future challenges in the area of solid dielectrics.

  • 2007 IEEE International Conference on Solid Dielectrics (ICSD)


2013 International Conference on Management Science and Engineering (ICMSE)

Management science and engineering, including operations research, organizational systems and behavior, economics and finance, and public administration.


2012 IEEE International Conference on Condition Monitoring and Diagnosis (CMD)

Condition monitoring and diagnosis for power equipments and power systems,power plants, dielectric materials and their aging mechanisms, degradation assessment for power system, application of information and communication technologies for condition monitoring and diagnosis, tropical climate and other related issues including recycling, reuse and mitigation,strategic planning and management for condition monitoring and diagnosis.

  • 2008 International Conference on Condition Monitoring and Diagnosis (CMD)

    Condition Monitoring and Diagnosis for Power Plants Condition Monitoring and Diagnosis of HV Power Apparatus and Power System Electrical, Mechanical, Thermal and Chemical Failure Phenomena Dielectric Materials Aging and Failure Mechanism Advanced Sensing Technologies for Condition Monitoring and Diagnosis Application of Artificial Intelligence for Data Mining and Condition Assessment Applications of Information Technology for Asset Management Strategic Planning and Management for Condition Monitoring


SICE 2012 - 51st Annual Conference of the Society of Instrument and Control Engineers of Japan

This conference covers a wide range of fields from measurement and control to system analysis and design, from theory to application and from software to hardware.


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Periodicals related to Deterioration

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Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Industry Applications, IEEE Transactions on

The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.


Magnetics, IEEE Transactions on

Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The Transactions publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.


Reliability, IEEE Transactions on

Principles and practices of reliability, maintainability, and product liability pertaining to electrical and electronic equipment.



Most published Xplore authors for Deterioration

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Xplore Articles related to Deterioration

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Assessment of deterioration in epoxy/mica machine insulation

Y. J. Kim; J. K. Nelson IEEE Transactions on Electrical Insulation, 1992

Long-time accelerated aging tests in a laboratory environment have been conducted on generator stator insulation to identify meaningful diagnostic measures for the assessment of degradation and identification of aging mechanisms. A plurality of techniques are investigated and diagnostic parameter, the dynamic stagnation voltage, which appears to be correlated with delimination in the epoxy-mica structure, is proposed. The results provide a ...


Characterization of grain boundaries in YBa/sub 2/Cu/sub 3/O/sub y/ bicrystal junctions [SQUIDs]

Hsiao-Wen Yu; Ming-Jye Chen; Hong-Chang Yang; S. Y. Yang; H. E. Horng IEEE Transactions on Applied Superconductivity, 1999

I-V, V-/spl Phi/ characteristics and atomic force images of grain boundary Josephson junctions fabricated on SrTiO/sub 3/ bicrystal substrates were investigated. The half integer Shapiro steps and I/sub c/ versus B curves show evidence of the inhomogeneous current distribution along the grain boundary junction. The dc SQUID formed on the grain boundary shows the expected V-/spl Phi/ curve. The AFM ...


Compressive sampling for networked feedback control

Masaaki Nagahara; Daniel E. Quevedo; Takahiro Matsuda; Kazunori Hayashi 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012

We investigate the use of compressive sampling for networked feedback control systems. The method proposed serves to compress the control vectors which are transmitted through rate-limited channels without much deterioration of control performance. The control vectors are obtained by an ℓ1-ℓ2 optimization, which can be solved very efficiently by FISTA (Fast Iterative Shrinkage-Thresholding Algorithm). Simulation results show that the proposed ...


Analysis of insulation diagnosis and failure in stator windings of air-cooled gas turbine generator

Hee-Dong Kim; Tae-Sik Kong 2014 IEEE Energy Conversion Congress and Exposition (ECCE), 2014

In order to evaluate the insulation deterioration in the stator windings of air-cooled gas turbine generators(119.2 MVA, 13.8 kV) which has been operating for more than 15 years, diagnostic test and AC dielectric breakdown test were performed on phases A, B and C. Diagnostic test included measurements of AC current, dissipation factor, partial discharge (PD) magnitude and capacitance. ΔI and ...


Passivation of YBCO dc-SQUIDs using polymerized hexamethyldisilasane

A. Kramer; L. Mex; C. Francke; J. Muller; S. Kittelberger IEEE Transactions on Applied Superconductivity, 1999

A passivation layer was developed to protect YBCO-devices like flux transformers and SQUIDs against deterioration due to moisture, atmospheric carbon dioxide and oxygen diffusion. The passivation layer is deposited by the polymerization of the silicon organic compound hexamethyldisilasane (HMDS-N) in a plasma enhanced chemical vapor deposition (PECVD) process. AFM investigations confirm that films of 100-150 nm thickness cover YBCO structures ...


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Educational Resources on Deterioration

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eLearning

Assessment of deterioration in epoxy/mica machine insulation

Y. J. Kim; J. K. Nelson IEEE Transactions on Electrical Insulation, 1992

Long-time accelerated aging tests in a laboratory environment have been conducted on generator stator insulation to identify meaningful diagnostic measures for the assessment of degradation and identification of aging mechanisms. A plurality of techniques are investigated and diagnostic parameter, the dynamic stagnation voltage, which appears to be correlated with delimination in the epoxy-mica structure, is proposed. The results provide a ...


Characterization of grain boundaries in YBa/sub 2/Cu/sub 3/O/sub y/ bicrystal junctions [SQUIDs]

Hsiao-Wen Yu; Ming-Jye Chen; Hong-Chang Yang; S. Y. Yang; H. E. Horng IEEE Transactions on Applied Superconductivity, 1999

I-V, V-/spl Phi/ characteristics and atomic force images of grain boundary Josephson junctions fabricated on SrTiO/sub 3/ bicrystal substrates were investigated. The half integer Shapiro steps and I/sub c/ versus B curves show evidence of the inhomogeneous current distribution along the grain boundary junction. The dc SQUID formed on the grain boundary shows the expected V-/spl Phi/ curve. The AFM ...


Compressive sampling for networked feedback control

Masaaki Nagahara; Daniel E. Quevedo; Takahiro Matsuda; Kazunori Hayashi 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012

We investigate the use of compressive sampling for networked feedback control systems. The method proposed serves to compress the control vectors which are transmitted through rate-limited channels without much deterioration of control performance. The control vectors are obtained by an ℓ1-ℓ2 optimization, which can be solved very efficiently by FISTA (Fast Iterative Shrinkage-Thresholding Algorithm). Simulation results show that the proposed ...


Analysis of insulation diagnosis and failure in stator windings of air-cooled gas turbine generator

Hee-Dong Kim; Tae-Sik Kong 2014 IEEE Energy Conversion Congress and Exposition (ECCE), 2014

In order to evaluate the insulation deterioration in the stator windings of air-cooled gas turbine generators(119.2 MVA, 13.8 kV) which has been operating for more than 15 years, diagnostic test and AC dielectric breakdown test were performed on phases A, B and C. Diagnostic test included measurements of AC current, dissipation factor, partial discharge (PD) magnitude and capacitance. ΔI and ...


Passivation of YBCO dc-SQUIDs using polymerized hexamethyldisilasane

A. Kramer; L. Mex; C. Francke; J. Muller; S. Kittelberger IEEE Transactions on Applied Superconductivity, 1999

A passivation layer was developed to protect YBCO-devices like flux transformers and SQUIDs against deterioration due to moisture, atmospheric carbon dioxide and oxygen diffusion. The passivation layer is deposited by the polymerization of the silicon organic compound hexamethyldisilasane (HMDS-N) in a plasma enhanced chemical vapor deposition (PECVD) process. AFM investigations confirm that films of 100-150 nm thickness cover YBCO structures ...


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IEEE.tv Videos

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IEEE-USA E-Books

  • Rotor Winding Failure Mechanisms and Repair

    The aging processes and failure mechanisms affecting rotor winding insulation and, where appropriate, the winding conductors are described in this chapter. Root causes of the failures and symptoms characteristic of the failure mechanisms are also discussed, as are the repairs and refurbishment options available for dealing with these conditions. The repairs covered in this chapter tend to be common for all types of deterioration processes. Thus, repairs are described for each type of rotor. Extensive repairs for large, round-rotor synchronous machines, such as rewinding, are discussed in previous chapters.

  • References

    Images of environmental disaster and degradation have become part of our everyday media diet. This visual culture focusing on environmental deterioration represents a wider recognition of the political, economic, and cultural forces that are responsible for our ongoing environmental crisis. And yet efforts to raise awareness about environmental issues through digital and visual media are riddled with irony, because the resource extraction, manufacturing, transportation, and waste associated with digital devices contribute to environmental damage and climate change. _Screen Ecologies _examines the relationship of media, art, and climate change in the Asia- Pacific region -- a key site of both environmental degradation and the production and consumption of climate-aware screen art and media. _Screen Ecologies_ shows how new media and visual artists provide alternative ways for understanding the entanglements of media and the environment in the Asia-Pacific. It investi ates such topics as artists' exploration of alternative ways to represent the environment; regional stories of media innovation and climate change; the tensions between amateur and professional art; the emergence of biennials, triennials, and new arts organizations; the theme of water in regional art; new models for networked collaboration; and social media's move from private to public realms. A generous selection of illustrations shows a range of artist's projects.

  • Core Lamination Insulation Failure and Repair

    This chapter discusses the most common causes of stator and rotor core failures in both induction and synchronous machines, together with proven repair methods. Degradation of the core condition due to the effects of thermal aging can occur in all rotating machine laminated cores. Electrical aging occurs when the voltage across the lamination insulation induced by magnetic fluxes, electromagnetic forces, or high ground-fault currents causes deterioration. The most common causes of mechanical degradation in cores are inadequate core pressure applied in manufacture, core pressure reduction in service due to relaxation of the core support structure, core vibration, back- of-core looseness, and mechanical damage causing smearing of the core surface at the bore. A number of different core insulation defects can be introduced during manufacture and these may not be detected if adequate quality assurance (QA) checks are not performed.

  • Understanding and Explaining DRN Behavior

    This chapter contains sections titled: Introduction Performance Deterioration Dynamic Space Exploration DFA Extraction: Fool's Gold? Theoretical Foundations How Can DFA Outperform Networks? Alternative Extraction Methods Extension to Fuzzy Automata Application to Financial Forecasting Conclusion

  • Index

    Images of environmental disaster and degradation have become part of our everyday media diet. This visual culture focusing on environmental deterioration represents a wider recognition of the political, economic, and cultural forces that are responsible for our ongoing environmental crisis. And yet efforts to raise awareness about environmental issues through digital and visual media are riddled with irony, because the resource extraction, manufacturing, transportation, and waste associated with digital devices contribute to environmental damage and climate change. _Screen Ecologies _examines the relationship of media, art, and climate change in the Asia- Pacific region -- a key site of both environmental degradation and the production and consumption of climate-aware screen art and media. _Screen Ecologies_ shows how new media and visual artists provide alternative ways for understanding the entanglements of media and the environment in the Asia-Pacific. It investi ates such topics as artists' exploration of alternative ways to represent the environment; regional stories of media innovation and climate change; the tensions between amateur and professional art; the emergence of biennials, triennials, and new arts organizations; the theme of water in regional art; new models for networked collaboration; and social media's move from private to public realms. A generous selection of illustrations shows a range of artist's projects.

  • The Aging CrisisStopgap Measures

    This chapter contains sections titled: The Extremely High Rate of Deterioration Suffered by Crystals Due to Aging Has Been and Is a Source of Much Trouble to the Army Air Forces" DIP the Toothbrush in the Soapy Solution and Brush Evenly Back and Forth Across the Surface of the Crystal" The Mission of the Crystal Grinding Unit Is to Perform All Echelons of Maintenance and to Manufacture Quartz Crystals" We Finally Resorted to Valve Grinding Compound from the Motor Pool"

  • Programming Languages and the Software Production Process

    Misuse of the underlying programming language can be the single greatest source of performance deterioration and missed deadlines in real-time systems. Moreover the increased use of object-oriented languages such as C++, Java, and sometimes Ada Ada has also been called object-based to recognize its uniqueness as both object-oriented and procedural. in real-time systems may make the problem more insidious. This chapter explores programming language issues with respect to real-time systems design and analysis and introduces best practices in writing code using various languages. The thrust is on those language features that minimize the final code execution time and which lend themselves to performance prediction.

  • No title

    Disorders related to the intervertebral disc (IVD) are common causes of morbidity and of severe life quality deterioration. IVD degeneration, although in many cases asymptomatic, is often the origin of painful neck and back diseases. In Western societies IVD related pain and disability account for enormous health care costs as a result of work absenteeism and thus lost production, disability benefits, medical and insurance expenses. Although only a small percentage of patients with disc disorders finally will undergo surgery, spinal surgery has been one of the fastest growing disciplines in the musculoskeletal field in recent years. Nevertheless, current treatment options are still a matter of controversial discussion. In particular, they hardly can restore normal spine biomechanics and prevent degeneration of adjacent tissues. While degeneration affects all areas of the IVD, the most constant and noticeable changes occur in the gel-like central part, the nucleus pulposus (NP). Recent emphasis has therefore been put in biological ways to regenerate the NP; however, there are a number of obstacles to overcome, considering the exceptional biological and biomechanical environment of this tissue. Different biological approaches such as molecular, gene, and cell based therapies have been investigated and have shown promising results in both in vitro and in vivo studies. Nonetheless, considerable hurdles still exist in their application for IVD regeneration in human patients. The choice of the cells and the choice of the cell carrier suitable for implantation pose major challenges for research and development activities. This lecture recapitulates the basics of IVD structure, function, and degeneration mechanisms. The first part reviews the recent progress in the field of disc and stem cell based regenerative approaches. In the second part, most appropriate biomaterials that have been evaluated as cell or molecule carrier to cope with degenerative disc disease are outlin d. The potential and limitations of cell- and biomaterial-based treatment strategies and perspectives for future clinical applications are discussed. Table of Contents: Cell Therapy for Nucleus Pulposus Regeneration / Recent Advances in Biomaterial Based Tissue Engineering for Intervertebral Disc Regeneration

  • Evaluating Insulation Materials and Systems

    This chapter describes the practical aspects and limitations of accelerated aging tests used to determine the capability of winding insulation systems. There are many different stresses that can affect the rate of insulation deterioration in stator and rotor windings. The chapter describes thermal, electrical, ambient, and mechanical stresses, the so-called TEAM stresses. Each insulating material has its characteristic breakdown strength. Elaborate methods have been developed for measuring the short-term (voltage is applied for less than a few minutes) breakdown strength of insulation. The notion that some failure processes in rotor and stator windings do not occur as a result of a single stress or factor but, in fact, depend on two or more stresses/factors. Thus, to reasonably duplicate some failure processes in an accelerated aging test, more than one stress needs to be applied at the same time.

  • Threshold Region Performance of Maximum Likelihood Direction of Arrival Estimators

    This paper presents a performance analysis of the maximum likelihood (ML) estimator for finding the directions of arrival (DOAs) with a sensor array. The asymptotic properties of this estimator are well known. In this paper, the performance under conditions of low signal-to-noise ratio (SNR) and a small number of array snapshots is investigated. It is well known that the ML estimator exhibits a threshold effect, i.e., a rapid deterioration of estimation accuracy below a certain SNR or number of snapshots. This effect is caused by outliers and is not captured by standard techniques such as the Cramér-Rao bound and asymptotic analysis. In this paper, approximations to the mean square estimation error and probability of outlier are derived that can be used to predict the threshold region performance of the ML estimator with high accuracy. Both the deterministic ML and stochastic ML estimators are treated for the single-source and multisource estimation problems. These approximations alleviate the need for time-consuming computer simulations when evaluating the threshold region performance. For the special case of a single stochastic source signal and a single snapshot, it is shown that the ML estimator is not statistically efficient as SNR due to the effect of outliers.



Standards related to Deterioration

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Jobs related to Deterioration

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