Experimental modeling of the thermal resistance of the heat sink dedicated to SMD LEDs passive cooling

Ouhadou, Malika; Amrani, Aumeur El; Ziani, Said; Messaoudi, Choukri

doi:10.1145/3286606.3286810

Cited by 17 publications

(5 citation statements)

References 8 publications

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“…This method has been tested on several datasets (ICWT). Furthermore, this method is distinctive in that it provides resource recovery from a single channel without relying on statistical or decomposition methods such as svd, emd, and nmf [14][15][16]. Our method's isolation is outstanding to all other approaches; the cardiologist can easily interpret the ECG to detect arrhythmias and heart defects.…”

Section: Results Of Simulationsmentioning

confidence: 99%

Contribution to Single-Channel Fetal Electrocardiogram Identification

Ziani¹

2022

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This paper presents the recognition of fetal ECG signals from a single-channel recording. The Continuous Wavelet Transform generates a two-dimensional representation of a single-dimension input containing fetal electrocardiogram waves, which are accurately located and isolated. By segmenting this 2D representation using Otsu's method, the continuous wavelet transform of each wave may be estimated. The temporal expression of the wave is then rebuilt by calculating the Inverse Continuous Wavelet Transform. The continuity between each sample allows us to follow the waves from one image to the next. Consequently, the complete profile can be automatically processed.

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Section: Results Of Simulationsmentioning

confidence: 99%

Contribution to Single-Channel Fetal Electrocardiogram Identification

Ziani¹

2022

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“…The undeniable value of wavelets in biomedical engineering is highlighted in this work. Additionally, it is mentioned that this mathematical tool can be applied to energy [37][38][39] and motor control [40,41] for electric vehicles.…”

Section: Discussionmentioning

confidence: 99%

Extraction of Fetal Electrocardiogram by Combining Deep Learning and SVD-ICA-NMF Methods

Ziani

Farhaoui

Moutaib

2023

Big Data Min. Anal.

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This paper deals with detecting fetal electrocardiogram FECG signals from single-channel abdominal lead.It is based on the Convolutional Neural Network (CNN) combined with advanced mathematical methods, such as Independent Component Analysis (ICA), Singular Value Decomposition (SVD), and a dimension-reduction technique like Nonnegative Matrix Factorization (NMF). Due to the highly disproportionate frequency of the fetus's heart rate compared to the mother's, the time-scale representation clearly distinguishes the fetal electrical activity in terms of energy. Furthermore, we can disentangle the various components of fetal ECG, which serve as inputs to the CNN model to optimize the actual FECG signal, denoted by FECGr, which is recovered using the SVD-ICA process. The findings demonstrate the efficiency of this innovative approach, which may be deployed in real-time.

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“…High-efficiency solar thermal systems often experience stagnant conditions where solar panel temperatures can reach as high as 190-200 °C [20]. One of the most common issues with solar thermal systems is stagnation, which leads to evaporation and glycol deterioration, decreased performance, and more frequent maintenance and repair expenditures.…”

Section: Highly Efficient Thermal Solar Collector Overheating Protect...mentioning

confidence: 99%

“…With the help of a novel intelligent selective coating, which exhibits a dramatic rise in infrared emissivity thermochromic effect) at the crucial temperature, the stagnation temperature may be lowered to just 150 °C. Light intensity is 1000 W/m2 and the temperature is 35 degrees Celsius outside [20]. Because of the new smart selective coating's high solar absorption coefficient (>94%) and low emissivity (6%) at low temperatures, and because the thermochromic effect only becomes noticeable once the temperature rises to about 70°C, the high performance of the new thermochromic thermal solar system serves as an excellent example of the effect of using the smart selective coating.…”

Section: Highly Efficient Thermal Solar Collector Overheating Protect...mentioning

confidence: 99%

“…Hot water production relies on how well the system performs. The composition, structure, and optical characteristics of a new generation of selective coatings based on Vanadium and Alumina mixes (VO2/VnO2n1/Al2O3/SiO2) were described in [20]- [21]. Above 70 degrees Celsius, emissivity dramatically increased, as seen in FTIR (Fourier Transform Infrared) spectroscopy and infrared camera photos.…”

Section: Highly Efficient Thermal Solar Collector Overheating Protect...mentioning

confidence: 99%

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Solar panels overheating protection: a review

Laabab

Ziani

Benami

2022

IJEECS

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Reduced energy consumption is a direct result of building optimization. Solar panels and heat detectors can provide the necessary power. After years of refinement and development, methods for regulating solar panels' output are finally finding their way into everyday life, where they are having a dramatic impact on the foundations of sustainability. This document provides an up-to-date assessment of several strategies for preventing solar panels from overheating, all of which serve to boost their efficiency and prolong their service life. It begins with a brief background on protection technologies before moving on to a survey of recently filed patent applications that address this topic. The study concludes with a proposed assessment of the strengths and shortcomings of these safeguards. We anticipate that the information included in this review paper will be an invaluable tool for scholars and researchers.

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Experimental modeling of the thermal resistance of the heat sink dedicated to SMD LEDs passive cooling

Cited by 17 publications

References 8 publications

Contribution to Single-Channel Fetal Electrocardiogram Identification

Contribution to Single-Channel Fetal Electrocardiogram Identification

Extraction of Fetal Electrocardiogram by Combining Deep Learning and SVD-ICA-NMF Methods

Solar panels overheating protection: a review

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