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The scope of the 2020 IEEE/ASME AIM includes the following topics: Actuators, Automotive Systems, Bioengineering, Data Storage Systems, Electronic Packaging, Fault Diagnosis, Human-Machine Interfaces, Industry Applications, Information Technology, Intelligent Systems, Machine Vision, Manufacturing, Micro-Electro-Mechanical Systems, Micro/Nano Technology, Modeling and Design, System Identification and Adaptive Control, Motion Control, Vibration and Noise Control, Neural and Fuzzy Control, Opto-Electronic Systems, Optomechatronics, Prototyping, Real-Time and Hardware-in-the-Loop Simulation, Robotics, Sensors, System Integration, Transportation Systems, Smart Materials and Structures, Energy Harvesting and other frontier fields.
The conference will provide a forum for discussions and presentations of advancements inknowledge, new methods and technologies relevant to industrial electronics, along with their applications and future developments.
Photovoltaic materials, devices, systems and related science and technology
Electrical Materials, Equipment, Testing, Nanotechnologies, Power Systems, Motors, Generators, Transformers, Switchgear
International Geosicence and Remote Sensing Symposium (IGARSS) is the annual conference sponsored by the IEEE Geoscience and Remote Sensing Society (IEEE GRSS), which is also the flagship event of the society. The topics of IGARSS cover a wide variety of the research on the theory, techniques, and applications of remote sensing in geoscience, which includes: the fundamentals of the interactions electromagnetic waves with environment and target to be observed; the techniques and implementation of remote sensing for imaging and sounding; the analysis, processing and information technology of remote sensing data; the applications of remote sensing in different aspects of earth science; the missions and projects of earth observation satellites and airborne and ground based campaigns. The theme of IGARSS 2019 is “Enviroment and Disasters”, and some emphases will be given on related special topics.
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...
The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
2014 Prognostics and System Health Management Conference (PHM-2014 Hunan), 2014
The performance of aircraft engine has a great influence on the operating costs and use efficiency, while performance deteriorating to a great degree may lead to engine failure. As a result, it is of great importance to analyze the performance of aircraft engine. In this paper, the performance deterioration theory of aircraft engine components was analyzed based on simulation with ...
The models of inventory replenishment policies for the deterioration items have been widely studied, and in most of the deterministic models, the in- transit deteriorating loss is not considered. But in operation management practice, transportation time is the major portion of the lead time, and the extent of spoilage of the fresh items is also influenced by the length of ...
2015 50th International Universities Power Engineering Conference (UPEC), 2015
A deterioration diagnosis method for a Li-ion battery using its transient characteristic is proposed in this paper. The terminal voltage of the battery sharply increases at the beginning of the charging and gradually increases. The terminal voltage suddenly decreases at the end of the charging and decreases toward its internal voltage. The transient characteristic can be explained by the response ...
2018 2nd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT), 2018
In this study, new types of deterioration related to ergonomic risk factors in machine scheduling problem are investigated. By the ergonomic risk, we mean that the employees are exposed to risk of work related musculoskeletal disorders (WMSD) for the reasons of repetitive activities. Rapid The Upper Limp Assessment (RULA) was used to assess the WMSD risks. We accepted that the ...
2017 52nd International Universities Power Engineering Conference (UPEC), 2017
This paper presents a deterioration diagnosis circuit for Lithium ion (Li-ion) batteries using a Field Programmable Gate Array (FPGA). The terminal voltage of any Li-ion battery rapidly increases at the end of the discharging, and gradually converges to the internal voltage. The internal impedance of the battery can be obtained from the transient characteristics. The internal impedance has a close ...
The performance of aircraft engine has a great influence on the operating costs and use efficiency, while performance deteriorating to a great degree may lead to engine failure. As a result, it is of great importance to analyze the performance of aircraft engine. In this paper, the performance deterioration theory of aircraft engine components was analyzed based on simulation with component level model of aircraft engine built by Matlab and several parameters including compressor outlet pressure, compressor outlet temperature, turbine outlet pressure, turbine outlet temperature, fuel flow, thrust and etc, were evaluated with grey relation analysis. The influence of component deterioration on engine performance was discussed. The simulation results show that component deterioration has a great influence on the engine performance, and performance deterioration evaluation analysis of aircraft engine based on simulation is of theoretical importance and application value for gas turbine health management.
The models of inventory replenishment policies for the deterioration items have been widely studied, and in most of the deterministic models, the in- transit deteriorating loss is not considered. But in operation management practice, transportation time is the major portion of the lead time, and the extent of spoilage of the fresh items is also influenced by the length of shipping time. The impact of in-transit deterioration loss to the optimal replenishment policy for deteriorating goods was studied. Firstly a in-transit and on-hand two-phase inventory model with different deterioration rate was established, then it was proved that there exists unique optimal order cycle to minimize the relevant annual cost, and the optimal order cycle is do affected by the length of transportation time and the deterioration rate in- transit. Finally, numerical examples were conducted to illustrate the effectiveness of the proposed model.
A deterioration diagnosis method for a Li-ion battery using its transient characteristic is proposed in this paper. The terminal voltage of the battery sharply increases at the beginning of the charging and gradually increases. The terminal voltage suddenly decreases at the end of the charging and decreases toward its internal voltage. The transient characteristic can be explained by the response of the internal impedance of the Li-ion battery. The internal impedance has a close relation to the deterioration of the battery. The proposed method in this paper diagnoses the deterioration using the integration of the difference between the terminal voltage and the internal voltage of the battery after a charging. The integrated voltage depends on both the deterioration and the temperature of the battery. The integrated voltage is corrected for the deterioration estimation of the Li-ion battery. This proposed method is practical because it requires no information except the terminal voltage of the battery and ambience temperature. A diagnosis equipment using a microcomputer has been developed in this paper. The circuit is realized a diagnosis system in low cost because the computational load for the diagnosis is light.
In this study, new types of deterioration related to ergonomic risk factors in machine scheduling problem are investigated. By the ergonomic risk, we mean that the employees are exposed to risk of work related musculoskeletal disorders (WMSD) for the reasons of repetitive activities. Rapid The Upper Limp Assessment (RULA) was used to assess the WMSD risks. We accepted that the deterioration and the processing time are related to the ergonomic risks. Given that the learning effect is ignored and the RULA score value is equal to zero, the actual processing time is equal to the basic processing time. As the level of ergonomic risk increases, processing time is prolonged. In this study, makespan minimization on single machine scheduling problems were handled. Job dependent learning effect and ergonomic risk deterioration is included to assignment problem model. Ergonomic risks are designed as a composite risk index in the assignment problem model. The composite risk index means that effects of all the technical activities within the shift carried out are until the end of the shift. Designed assignment problem models are solved with the help of LINGO. In this study, it has been shown that the scheduling problems that are handled with composite risk-indexed deterioration and work-dependent learning effects remain solvable.
This paper presents a deterioration diagnosis circuit for Lithium ion (Li-ion) batteries using a Field Programmable Gate Array (FPGA). The terminal voltage of any Li-ion battery rapidly increases at the end of the discharging, and gradually converges to the internal voltage. The internal impedance of the battery can be obtained from the transient characteristics. The internal impedance has a close relationship with deterioration of the battery. The developed circuit diagnoses the deterioration using the frequency characteristics of the internal impedance. The internal impedance is obtained from the frequency responses converted from the transient waveforms in a time domain by Fast Fourier Transform (FFT). The developed circuit allows a quick deterioration diagnosis during operation only by measuring the battery voltage and current. The developed circuit is achieved using common devices and estimates the lifetime of the battery without using expensive measuring equipment.
A deterioration diagnosis method for a Lithium-ion battery based on a phase characteristic of its internal impedance is proposed in this paper. The phase characteristic of the internal impedance is obtained from transient voltage and current waveforms of the battery by DLT (Discrete Laplace Transform). The maximum phase is increased by the deterioration. Since the phase characteristic heavily depends on temperature, a correction method is proposed to diagnose the deterioration of the battery. The proposed battery diagnostic method is independent from a contact resistance having high dependence of the implementation of the battery. The deterioration rate can be estimated from the transient voltage waveform during the operation of the battery-driven equipment. Since non-linear calculation is excluded from the proposed method, the method realizes a diagnosis system at low cost.
Resin-impregnated paper (RIP) bushings have been widely used in power system, however failure caused by local inter-foil insulation deterioration has occurred from time to time, which has seriously affected the safe and stable operation of substations. Due to the damaging effect of partial discharge, the resistance of local inter-foil insulation will gradually decrease, and breakdown may even occur. To study the phenomenon of local inter-foil insulation deterioration of RIP bushing, a test platform is established for 72.5kV RIP transformer bushings, and corresponding frequency-domain dielectric spectroscopy(FDS) test is conducted at room temperature. It is found that the FDS curve of bushing with inter-foil insulation deterioration and breakdown is significantly shifted compared to the normal one. In addition, due to the obvious development process of local inter-foil insulation deterioration of RIP bushings, a simulation model is established in this paper, and the method of changing the local electrical conductivity of local inter-foil insulation material is used to characterize the degree of insulation deterioration, and corresponding FDS response curves are obtained. The results show that with the development of the deterioration of local inter-foil insulation, the C-f and tant5-f curves have obvious transitional processes. In the initial and middle stage of insulation deterioration, the FDS method has higher diagnostic effectiveness than the traditional power frequency dielectric loss method. This article can provide a basic theoretical reference for the on-site diagnosis of local inter-foil insulation deterioration of RIP bushings.
According to our accelerated ageing test results of 275-kV full scale insulator strings coated with the same silicone rubber, conventional porcelain long-rod insulators showed better anti-ageing performance compared with transmission line polymer insulators. As the reason for such results two factors are considered. One is difference in core diameter, and the other is difference in shed shape. In order to clarify the reason for such results, we started comparative accelerated ageing tests on five different specimens, coated with the same room temperature vulcanized silicone rubber, with almost the same shed shapes but three different core diameters and with almost the same core diameters but three different shed shapes. As of 380 cycles of accelerated ageing test, any discernible deterioration was not observed on any specimens, although partial discharges had been observed at the energized end core surface of the transmission line polymer insulator after 200 cycles. It takes so long to get any significant deterioration by the accelerated ageing test. Since it is considered that the main cause of surface deterioration of polymer insulators is partial discharges, we investigated the partial discharge inception voltages of these specimens under contaminated and wet conditions. The transmission line polymer insulator showed the lowest partial discharge inception voltage. Very large ratio of shed to core diameter is considered to be the cause of easy occurrence of partial discharges due to concentrated voltages allotted at the core surfaces. We prepared three specimens to improve the voltage distribution of the transmission line polymer insulator and evaluated. Promising results were obtained.
Deterioration of polymeric dielectrics by partial discharge (PD) might occur at defects in an insulation layer. To elucidate the mechanism of deterioration by PD, measurements were conducted of the gas components produced during deterioration and the substances created on the surface of cross-linked polyethylene (XLPE) samples subjected to PD. Gas component measurements were performed using an experimental apparatus including GC-MS. Results of gas analyses showed that carbon dioxide (CO<sub>2</sub>) was produced when the XLPE sample is subjected to the PD in a N<sub>2</sub>+O<sub>2</sub> gas atmosphere. The amount of generated CO<sub>2</sub> was confirmed to increase concomitantly with the period of voltage application. The FTIR spectroscopic analysis of substances on the surface of deteriorated XLPE revealed carbonyl compounds on the surface of the deteriorated samples. The deterioration was suppressed when a phenolic antioxidant was added: 44-thiobis-3methyl-6tert butyl phenol. The process of deterioration by PD and the effect of the antioxidant on the deterioration by PD were also discussed.
In this paper, an on-line deterioration prediction method and residual life evaluation are proposed for maintenance of rotating equipment. Status of the rotating equipment is inspected by vibration measurement and a mathematical model for the deterioration of the equipment is derived in order to predict future condition of the rotating equipment. For the construction of the deterioration model, outliers in the vibration data caused by measurement errors and so on are eliminated in order to improve accuracy of the deterioration model. Residual life of the rotating equipment is evaluated from the deterioration prediction by using the deterioration model. The effectiveness of the proposed deterioration prediction method and residual life evaluation are assured by actual data of rotating equipment in thermal power plants.
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