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3rd International Conference on Electronic and electrical engineering and Intelligent System, ICE3IS 2023

作者： Mustar, Muhamad Yusvin Tryatmojo, Bintang Surya Hidayat, Maulana Wiyagi, Rama Okta Ulfa, Maria Fredianto, Meiky Ihsan, Muhammad Universitas Muhammadiyah Department of Electrical Engineering Yogyakarta Indonesia Research and Innovation Institute Universitas Muhammadiyah Center of Artificial Intelligence and Robotic Studies Yogyakarta Indonesia Universitas Muhammadiyah Postgraduate Program Master of Hospital Administration Yogyakarta Indonesia Universitas Muhammadiyah Faculty of Medicine and Health Sciences Yogyakarta Indonesia

ISBN: (纸本)9798350327762

This research offers an alternative for health workers to monitor the rehabilitation of a patient's Range of Motion (ROM) without using a goniometer instrument and attaching various sensors to the patient's body, based on a detection system using the MediaPipe library. The developed detection system measures angles concerning the patient's body ROM patterns. The algorithm in the MediaPipe library helps to produce line graphs of landmark pose which are then processed using the trigonometric gradient equation so that it can have to measure angles from ROM. The angle of ROM measured includes Flexion-Extension and Abduction-Adduction movements of the arms, legs, and body. The results of testing the detection system between the goniometer measurements and the detection results differ from the Right Arm Elbow Flexion-Extension movement to the Trunk Flexion-Extension movement having an angle difference. The most significant angle difference is in the Right Arm Elbow Abduction - Adduction movement of 9.1388°, and the minor difference is in the Right Leg Hip Abduction - Adduction movement of 2.15°. The most significant overall system error is in the Left Arm Elbow Flexion - Extension movement, with a general system error of 27%. The minor system error in Left Arm Elbow Abduction - Adduction movement is 11 %. © 2023 IEEE.

关键词： Errors

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H∞ gain-scheduled dynamic output feedback control with transient performance applied to electrical microgrid

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Journal of the Franklin Institute 2024年第7期361卷

作者： Fuentes, R.M. Lacerda, M.J. Morais, C.F. Oliveira, R.C.L.F. Palma, J.M. Engineering Systems Doctoral Program Faculty of Engineering Universidad de Talca Curicó3340000 Chile Centre for Communications Technology School of Computing and Digital Media London Metropolitan University LondonN7 8DB United Kingdom Pontifical Catholic University of Campinas – PUC-Campinas Polythecnic School Postgraduate Program in Telecommunication Networks Management SP Campinas13086-900 Brazil SP Campinas13083-852 Brazil Department of Electrical Engineering Faculty of Engineering Universidad de Talca Curicó334000 Chile

This paper introduces an approach for designing gain-scheduled dynamic output feedback controllers for continuous-time Linear Parameter-Varying (LPV) systems. The aim is to improve transient response by incorporating both D-stability and H∞ criteria into the synthesis conditions. We achieve this by employing changes of variables and congruence transformations, which lead to new synthesis conditions expressed as linear matrix inequalities. Additional fine-tuned scalar parameters can be used to enhance further the controller performance in terms of less conservative H∞ guaranteed costs. To assess the effectiveness of our proposed synthesis procedure, we conduct computational experiments in the context of a microinverter-based distributed power generation system. These experiments take into account real-world operational characteristics, providing a comprehensive evaluation of our approach. The results demonstrate that the designed controller effectively ensures the desired closed-loop system behavior, even when dealing with state noise and discretization errors originating from digital implementation. © 2024 The Franklin Institute

关键词： Transient analysis

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Towards System Security: What a Comparison of National Vulnerability Databases Reveals

Towards System Security: What a Comparison of National Vulne...

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Iberian Conference on Information Systems and Technologies (CISTI)

作者： Igor Forain Robson de Oliveira Albuquerque Rafael Timó teo de Sousa Jú nior Electrical Engineering Department Professional Post-Graduation Program in Electrical Engineering - PPEE Faculty of Technology University of Bras&#x00ED lia (UnB) Bras&#x00ED lia Brazil

System vulnerabilities are ubiquitous nowadays. In 2021, millions of cyberattacks exploited system flaws resulting in billions of losses. Despite massive vulnerability databases supported by the USA and China governments, there are still several unknown issues between them. This paper proposes a methodology to compare the National Vulnerability Database (NVD), the China National Vulnerability Database (CNVD), and the China National Vulnerability Database of Information Security (CNNVD). The results reveal that the CNNVD has 1,661 vulnerabilities entries more than the NVD and at least 40 more entries regarding Chinese vendors. Moreover, there is a temporal correlation of 0.917560 between the NVD and CNNVD. To the best of the authors’ knowledge, this work is the first to normalize and compare the NVD, CNVD, and CNNVD using their data feeds.

关键词： Measurement Correlation Databases XML Legislation Information security Software

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Comparison of fracture toughness testing by the single edge v-notch beam and the surface crack in flexure method on silicon nitride 2

Comparison of fracture toughness testing by the single edge ...

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2nd Tarumanagara International Conference on the Applications of Technology and engineering, TICATE 2019

作者： Nindhia, Tjokorda Gde Tirta Study Program of Mechanical Engineering Faculty of Engineering Udayana University Jimbaran Bali Indonesia

This work is intended to compare the SEVNB and the SCF methods for fracture toughness testing. Both of the test methods are applied to a silicon nitride. Both methods are standardized and both have some minor shortcomings with respect to practicability and match of the theoretical description of the test situation with the actual test situation. SEVNB is easy to perform, but uses a notch of known depth (+ small micro-cracks of unknown size in front of a notch) instead of a crack, SCF uses a presumably residual stress-free indentation crack which is sometimes difficult to measure, not always semi-elliptical, as assumed to apply the evaluation formula, and may be accompanied by lateral cracks. Both methods will be analysed with respect to possible experimental errors. Variations of the SCF method are applied in order to examine how pre-cracks can be introduced which can be detected on the fracture surface. The geometry of the SCF-pre-crack is varied by applying different loads and by removing different amounts of material. The geometry of the Knoop pre-cracks system is investigated. The results help to identify conditions under which the SCF method can be used successfully to measure the fracture toughness of silicon nitride ceramics. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： Silicon nitride

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Crack Catcher Ai – Enabling Smart Fracture Mechanics Approaches for Damage Control of Thin Silicon Cells or Wafers

SSRN

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SSRN 2024年

作者： Budiman, Arief Suriadi Putri, Dianing Novita Nurmala Candra, Henry Djuana, Endang Sari, Tyas Kartika Aji, Daisman P.B. Putri, Larasati Rizky Sitepu, Elioenai Speaks, Derrick Pasang, Tim Klamath FallsOR97601 United States Klamath FallsOR97601 United States Electrical Engineering Department Faculty of Industrial Technology Universitas Trisakti Jakarta11440 Indonesia Mechanical Engineering Department Faculty of Industrial Technology Universitas Trisakti Jakarta11440 Indonesia Industrial Engineering Department BINUS Graduate Program-Master of Industrial Engineering Bina Nusantara University Jakarta11480 Indonesia

Silicon has been one among a few key technologically important materials especially in our modern world. Silicon, especially in its current most useful forms (thin layers), is a brittle material by nature. Thin silicon cells crack easily during manufacturing assembly. Every crack is a defect in any PV manufacturing lines, and if let to grow/propagate it will lead to reliability and quality issues with time. Nevertheless, the global silicon solar PV industry is aggressively reducing the cost of solar PV systems through cutting down the thickness of silicon solar cells. Cell cracks immediately lower PV module efficiency and can lead to premature aging of the entire module. The "Crack Catcher AI" was our research joint collaboration’s entry in the Department of Energy (DOE)’s American-Made Solar Innovation competition in 2022 (Round 6) which later was selected as the national semifinalists and won an award announced by DOE in December 2022. It uses smart stress sensing and smart fracture prediction approaches utilizing fundamental fracture mechanics and big data analytics to reduce crack defects and enhance long-term durability/reliability of PV products/devices. Smart Stress Sensing uses a novel laser-based curvature methodology for fast in-line stress metrology in manufacturing lines. Smart Fracture Prediction uses Artificial Intelligence (AI) for defect control metrology and yield enhancement in PV production lines. It is based on monocrystalline silicon used in solar PV industries, but all scientific principles utilized and technological innovations developed in this article would be applicable as well for single crystal silicon semiconductor wafers. © 2024, The Authors. All rights reserved.

关键词： Cracks

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Chord Recognition using FFT Based Segment Averaging and Subsampling Feature Extraction 8

Chord Recognition using FFT Based Segment Averaging and Subs...

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8th International Conference on Information and Communication Technology, ICoICT 2020

作者： Sumarno, Linggo Sanata Dharma University Electrical Engineering Study Program Yogyakarta Indonesia

ISBN: (纸本)9781728161426

This paper proposes a feature extraction subsystem for a chord recognition system, which gives a fewer number of feature extraction coefficients than the previous ones. The method of the proposed feature extraction is FFT (Fast Fourier Transform) based segment averaging and subsampling. Guitar chords were used in developing the proposed feature extraction. In general, the method of the proposed feature extraction is as follows. Firstly, the input signal is transformed using FFT. Secondly, the left half portion of the transformed signal is processed in succession using SHPS (Simplified Harmonic Product Spectrum), logarithmic scaling, segment averaging, and subsampling. The output of subsampling is the result of the proposed feature extraction. Based on the test results, the proposed feature extraction was quite efficient for use in a chord recognition system. For the recognition rate category above 98%, the chord recognition system only required a number of seven feature extraction coefficients. In addition, for the recognition rate category above 90%, the chord recognition system only required a number of six feature extraction coefficients. © 2020 IEEE.

关键词： Feature extraction

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Fault Classification of Induction Motor Using Discrete Wavelet Transform and Fuzzy Inference System

Fault Classification of Induction Motor Using Discrete Wavel...

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2020 International Conference on Smart Technology and Applications, ICoSTA 2020

作者： Kuspijani, K. Watiasih, Richa Prihastono, Prihastono Bhayangkara Surabaya University Electrical Engineering Study Program Surabaya Indonesia

ISBN: (纸本)9781728130835

This paper develops a real-time condition-monitoring algorithm for induction motor. The condition monitoring mechanism is based on the discrete wavelet transform (DWT) and the fuzzy inference system (FIS). In this method, the stator currents are used as an input to the system. No direct access to the induction motor is required. The developed system has been rigorously assessed theoretically and experimentally, and it has been shown that the system is robust and reliable. © 2020 IEEE.

关键词： Discrete wavelet transforms

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Measuring the Complexity of EMG Signal by Using Fuzzy Approximate Entropy in Post-Stroke Patients Rehabilitation

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Journal of engineering Science and Technology Review 2021年第3期14卷 85-90页

作者： Rulaningtyas, Riries Prasetyo, Angga Bagus Rahmatillah, Akif Putra, Alfian Pramudita Rahma, Osmalina Nur Ain, Khusnul Pawana, I Putu Alit Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Department of Physical Medicine and Rehabilitation School of Medicine Universitas Airlangga Dr. Soetomo General Academic Hospital Surabaya Indonesia

Stroke is one of world’s highest medical cases that cause physical or mental problem, even death. The treatment for overcoming stroke so far was by conducting rehabilitation or therapy. The therapy progress could be seen over the improvement indicated by stroke patients after participation in rehabilitation program. So far, the assessment of the level of development exhibited by stroke patients are still subjective. Meanwhile, Electromyograph (EMG) can be used as a quantitative method to evaluate the patient's improvement. The complexity of the EMG signal could define the progress of a rehabilitation process related to muscle function. One of the methods to calculate the complexity is fuzzy approximate entropy (fApEn). This study aims to propose fApEn as a quantitative method to evaluate the condition of stroke patients by comparing the complexity of the normal EMG, affected, and unaffected side limb of the patient's EMG signal. The value of fApEn on Subject 1 showed that the affected side obtained the complexity of 0.18141 and on the unaffected side of 0.80740. Subject 2 showed the complexity on the affected side of 0.58597 and the unaffected side of 1.02787, whereas the healthy subjects showed the complexity of 2.07856. The statistical results showed that the data were homogeneous and normally distributed. There was a significant difference between the results of fApEn on the affected side and the unaffected side. Thus, fApEn could be used as a quantitative method to determine the condition of muscle activity. © 2021 School of Science, IHU. All rights reserved.

关键词： Entropy

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Organizational Culture's Significance in Technology and Innovation Management 2

Organizational Culture's Significance in Technology and Inno...

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2nd IEEE International Conference on Trends in Quantum Computing and Emerging Business Technologies, TQCEBT 2024

作者： Hari Krishna, Somanchi Fajarini, Ulfah Painoli, Arun Kant Visvesvaran, C. Jahnavi, K.N. Lourens, Melanie Vignana Bharathi Institute of Technology Department of Business Management Ghatkesar Mandal Medchal Malkajigiri Medchal Malkajigiri India Syarif Hidayatullah State Islamic University Faculty of Education Social Science Study Program Jakarta Indonesia Baddi University of Emerging Sciences and Technology School of Management Studies Himachal Pradesh Baddi India Sri Krishna College of Engineering and Technology Coimbatore India SIndhi Institute of Management Bangalore India Durban University of Technology Faculty of Management Sciences South Africa

ISBN: (纸本)9798350384277

Several studies have examined the connection between innovation, technology, and organizational culture in recent years. Management of technology and innovation is crucial to an organization's expansion and success. The development of an innovative organizational culture comes before technology and innovation management. This study's primary goal was to assess how organizational culture affects innovation in the Indian service sector. The study made use of a paradigm for understanding organisational culture created by Cameron and Quinn, which looks at culture as a collection of conflicting values from four angles. A descriptive survey research design was used in the investigation. Employees of service industries made up the study's population. More than twenty IT organizations participated in the survey, and 120 out of 180 respondents returned completed questionnaires. This indicated a response rate of 66%.The collected data was analyzed using inferential data analysis techniques and descriptive statistics. Tables and figures were created after analysis with IBM SPSS software. The results demonstrated that the strongest associations with innovation and technology were found in companies with flexible, collaborative, and employee-friendly cultures. Lastly, the study suggests areas for additional research, such as employing a new organizational culture model for the study or qualitative techniques for data collecting and analysis to reveal deeper cultural features. © 2024 IEEE.

关键词： importance Organisational culture service industry technology and innovation management

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Comparison of BER Performance for M-ary QAM and PSK on DWT-based OFDM System with PTS Technique Through AWGN Channel 2

Comparison of BER Performance for M-ary QAM and PSK on DWT-b...

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2nd International Conference on Sustainable engineering and Creative Computing, ICSECC 2020

作者： Suhartomo, Antonius Vincent Study Program of Electrical Engineering President University Bekasi17550 Indonesia

ISBN: (纸本)9781728175881

Modulation technique, such as QAM and PSK may provide wireless communication with bandwidth efficiency. They each have their advantages, especially when it comes to BER performance over a wireless channel. They increase the performance of the bandwidth when used along with the OFDM. The FFT usually used in the OFDM system;however, it significantly increased the PAPR. DWT-based OFDM system can be implemented to solve this, and PTS technique can further improve it. This paper aims to do a simulation comparing QAM and PSK's BER performance. Both modulation technique will have the order of 4, 8, 16, 64, and ***, the bit order will be Gray-mapped. The signal is implemented in DWT-based OFDM system with PTS technique through AWGN channel. The result shows that the performance of 4-QAM is similar to QPSK. Then, 8-QAM is slightly better than 8-PSK, and as the order gets higher, the QAM shows a much better performance than PSK. The constellation diagram of QAM shows that the distance between each combination is constant for any order. PSK has a smaller distance;thus, it is very rational for QAM to perform better than PSK for the higher-order as 16-QAM, 64-QAM, and 256-QAM. © 2020 IEEE.

关键词： Orthogonal frequency division multiplexing

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