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Peters, Sunday O., Mahmut Sinecen, and Kadir Kizilkaya. "PSVIII-21 Bivariate genomic prediction with different heritability, QTL and SNP panel scenarios using artificial neural network." Journal of Animal Science 97, Supplement_3 (2019): 261–62. http://dx.doi.org/10.1093/jas/skz258.532.
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Abstract A bivariate simulation study was carried out to compare the accuracies of genomic predictions from bivariate artificial neural network model with 1 to 10 neurons (ANN-1–10) using the SNPs on the first chromosome of Brangus beef cattle for 50% genetically correlated two traits with heritabilities of 25% and 50% (T1h2=0.25 and T2h2=0.5) determined either by 50, 100, 250 or 500 QTL. After QTL were created by randomly selecting 50, 100, 250 and 500 SNPs from the 3361 SNPs of 719 animals, their effects were sampled from a bivariate normal distribution. The breeding value of animal i in each QTL scenario was generated as Σgijβ j where gij is the genotype of animal i at QTL j and the vector of β j has the effects of QTL j from a bivariate normal distribution for T1h2=0.25 and T2h2=0.5. Phenotypic values (Σgijβ j+ei) of animal i for traits were generated by adding residuals (ei) from a bivariate normal distribution to the Σgijβ j of animal i. Genomic predictions for T1h2=0.25 and T2h2=0.5 were carried out by bivariate Feed Forward MultiLayer Perceptron ANN-1–10 neurons with three sets of SNP panels, only QTL genotypes (Panel1), all SNP markers, including the QTL (Panel2), and all SNP markers, excluding the QTL (Panel3). The correlations between phenotypes and predicted phenotypes from 10-fold cross validation for bivariate analysis of T1h2=0.25 and T2h2=0.5 were used to assess predictive ability of bivariate ANN-1–10 neurons based on 4 QTL scenarios with 3 Panels of SNP panels. Correlations for genomic predictions of T2h2=0.5 were higher than those from T2h2=0.25 for all QTL and Panel scenarios (Table 1). Panle2 including QTL and SNP performs better prediction than Panel1 and Panel3 in QTL100, QTL250 and QTL500 scenarios and the correlation from Panel3 including only SNP, which is more realistic, are similar to or higher than those from Panel1.
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Lawler, A. "Expert Panel Faults Expert Panels." Science 316, no. 5825 (2007): 675b. http://dx.doi.org/10.1126/science.316.5825.675b.
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Pablo Jimenez, Juan. "Panal reports: IPA overview panel." International Journal of Psychoanalysis 82, no. 2 (2001): 385–88. http://dx.doi.org/10.1516/48nd-521a-1h39-fdl1.
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Mendoza, Zaira Morais dos Santos Hurtado de de, Pedro Hurtado de Mendoza Borges, Emanuella Araújo dos Santos, José Eduardo Penna, Maísa Pavani dos Santos Elias, and Pedro Hurtado de Mendoza Morais. "ESTUDO COMPARATIVO DAS PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS COMPENSADOS E LAMINATED VENEER LUMBER (LVL)." Nativa 5 (January 23, 2018): 588–93. http://dx.doi.org/10.31413/nativa.v5i7.5044.
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Este trabalho objetivou realizar um estudo comparativo das propriedades físicas e mecânicas de painéis compensados e laminated veneer lumber (LVL), produzidos com lâminas da madeira de Amescla (Trattinnickia burserifolia). A metodologia adotada na confecção dos painéis foi de acordo com a linha de produção empresarial. Os dois tipos de painéis foram montados com sete lâminas e a colagem foi feita com resina à base de fenol formaldeído. Os ensaios foram realizados conforme as normas da ABNT. Para as propriedades físicas somente a massa específica e o inchamento em espessura apresentaram diferença estatística, sendo que o painel LVL apresentou a menor massa específica e o maior inchamento em espessura. Para as propriedades mecânicas, verificadas no ensaio de flexão estática, houve diferença entre os dois tipos de painéis, sendo que o maior módulo de ruptura (MOR) e o maior módulo de elasticidade (MOE) foram para o painel LVL. Para a avaliação da qualidade de colagem, houve diferença entre os dois tipos de painéis nos ensaios de cisalhamento, sendo que o LVL foi o painel que apresentou maior resistência na linha de cola. O painel LVL mostrou-se, na maioria dos ensaios executados, superior ao painel compensado.Palavras-chave: compósitos de madeira; caracterização tecnológica; Trattinnickia burserifolia. COMPARATIVE STUDY OF THE PHYSICAL AND MECHANICAL PROPERTIES OF PANEL PLYWOOD AND LAMINATED VENEER LUMBER (LVL) ABSTRACT:The objective of the research was to make a comparative study of the physical and mechanical properties of panels plywood and LVL (laminated veneer lumber), produced with Trattinnickia burserifolia The methodology adopted in the preparation of the panels was carried out according to the business production line. The two types of panels were assembled with seven blades and the bonding was done with resin based on phenol formaldehyde. The specimens were tested according to ABNT standards. For the physical properties, only the specific mass and the swelling in thickness presented statistical difference, being that the LVL panel presented the lowest specific mass and the largest swelling in thickness. For the mechanical properties, verified in the static flexion test, there was difference between the two types of panels, with the largest modulus of rupture (MOR) and the largest modulus of elasticity (MOE) were for the LVL panel. For the evaluation of the bonding quality, there was a difference between the two types of panels in the shear tests, and the LVL was the panel that presented greater resistance in the glue line. The LVL panel has proven to be superior to the compensated panel in most tests.Keywords: wood composites, technological characterization, Trattinnickia burserifolia. DOI: http://dx.doi.org/10.5935/2318-7670.v05nespa19
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Słabisz, Sławomir. "Diagnostyka sydromiczna w wybranych zakażeniach układowych." Forum Zakażeń 13, no. 5 (2022): 173–80. http://dx.doi.org/10.15374/fz2022025.
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Zakażenia układu pokarmowego, oddechowego oraz centralnego układu nerwowego charakteryzują się odmienną specyfiką patogenów wywołujących te infekcje. Duża różnorodność prawdopodobnych drobnoustrojów stwarza wyzwanie dla procesu diagnostycznego, który powinien być możliwie jak najszybszy i najdokładniejszy. Kluczową rolę w podjęciu optymalnych decyzji terapeutycznych odgrywa czas uzyskania wyniku badania mikrobiologicznego. Zbyt długi czas uzyskania wyniku bądź błędna diagnoza może przekładać się bezpośrednio na zwiększenie śmiertelności i wydłużenie rekonwalescencji pacjenta, wynikających z niewłaściwego bądź opóźnionego wdrożenia leczenia przeciwdrobnoustrojowego. Pomimo iż w rutynowej diagnostyce mikrobiologicznej konwencjonalna hodowla pozostaje dalej złotym standardem, coraz większe znaczenie mają nowoczesne systemy paneli syndromicznych, tzw. „Syndromic Testing”, bazujące na różnych technikach genetycznych (np. PCR, multiplex PCR, LAMP). Panele te umożliwiają identyfikację szerokiego zakresu patogenów oraz pozwalają na wykrycie genów determinujących oporność na antybiotyki. W zależności od specyfiki infekcji specjaliści mają do dyspozycji różne panele diagnostyczne, jak: panel oddechowy, panel gastroenterologiczny oraz panel zakażenia centralnego układu nerwowego (CUN) i zakażenia mózgu. Materiałem do badania w diagnostyce tych zakażeń są najczęściej plwocina, popłuczyny pęcherzykowo-oskrzelowe, aspirat tchawiczy, próbki kału oraz płyn mózgowo-rdzeniowy. Dzięki zastosowaniu nowoczesnych metod biologii molekularnej czas uzyskania takiego wyniku wynosi od 45 min. do 2h. Testowanie syndromiczne skraca znacznie czas uzyskania wyniku czynnika etiologicznego infekcji, co pozwala na szybszą reakcję personelu medycznego, a tym samym szybszą eskalację lub deeskalację wdrożonej terapii empirycznej. W praktyce odpowiednio zastosowany i zinterpretowany wynik panelu syndromicznego pozwala uzyskać lepsze efekty kliniczne oraz ekonomiczne leczenia zakażeń.
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Prima Dewi, Riyani. "SISTEM PENDINGIN PANEL SURYA OTOMATIS UNTUK MENGKATKAN DAYA KELUARAN PANEL SURYA." Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer 14, no. 1 (2023): 1–10. http://dx.doi.org/10.24176/simet.v14i1.8901.
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Solar panels are the main component of solar power plant. In the Solar panels, conversion of solar energy into electrical energy are done. The results of the electrical energy produced by solar panels depend on the amount of solar intensity received by the solar panels. In addition, the working temperature of solar panels is also crucial. The ideal solar panel temperature is 25 C, which means that the solar panel will work optimally at that condition. When the temperature rises, the solar cell performance will decrease. This study aims to design a solar panel cooling system with active and passive methods using a way of flowing water over the surface of the solar panel and adding wet coconut coir on the back of the solar panel. The purpose of providing this treatment is to keep the surface temperature of the solar panel from overheating. This study uses a 100 WP solar panel and the results obtained that the average power generated is 69 W with an average voltage value of 15.47 V and an average current of 4.5 A. The performance 100 WP solar panels increased 24% of the reference solar panels being compared
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Eka Saputra, Yuli Mafendro Dedet, Mochammad Tendi Noer Ramadhan, Azzahra Maulida, Budi Santoso, and Ismail Basri. "Design a Smart Solar Tracker to Increase Energy Output Power Generated in Solar Home System." MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering 6, no. 1 (2024): 53–62. http://dx.doi.org/10.46574/motivection.v6i1.286.
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This research proposes the use of a smart solar tracker to enhance the power generated by solar panels. The smart solar tracker is designed by integrating IoT technology and applied to a Solar Home System. This device not only optimizes the tilt angle of solar panels automatically but also enables remote monitoring of solar panel performance through IoT. Parameters such as panel angle, voltage, and current are measured. Test results indicate that installing the smart solar tracker increases the power output of solar panels compared to panels without the smart solar tracker. For instance, at 11:00 AM, solar panels with the smart solar tracker generated 9.85W of power with a panel angle of 70 degrees, whereas solar panels without the smart solar tracker only produced 8.9W of power with a panel angle of 35 degrees. Penelitian ini mengusulkan penggunaan smart solar tracker untuk meningkatkan daya yang dihasilkan oleh panel surya. Smart solar tracker dirancang dengan mengintegrasikan teknologi IoT dan diterapkan pada Solar Home System. Alat ini tidak hanya mengoptimalkan sudut kemiringan panel surya secara otomatis, tetapi juga memungkinkan pemantauan jarak jauh terhadap kinerja panel surya melalui IoT. Pengukuran parameter seperti sudut panel, tegangan, dan arus dilakukan. Hasil pengujian menunjukkan bahwa pemasangan smart solar tracker meningkatkan daya output panel surya dibandingkan dengan panel surya tanpa smart solar tracker. Misalnya, pada pukul 11.00 WIB, panel surya dengan smart solar tracker menghasilkan daya sebesar 9.85W dengan sudut panel 70 derajat, sementara panel surya tanpa smart solar tracker hanya menghasilkan daya sebesar 8.9W dengan sudut panel 35 derajat.
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Taherbaneh, Mohsen, A. H. Rezaie, H. Ghafoorifard, K. Rahimi, and M. B. Menhaj. "Maximizing Output Power of a Solar Panel via Combination of Sun Tracking and Maximum Power Point Tracking by Fuzzy Controllers." International Journal of Photoenergy 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/312580.
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In applications with low-energy conversion efficiency, maximizing the output power improves the efficiency. The maximum output power of a solar panel depends on the environmental conditions and load profile. In this paper, a method based on simultaneous use of two fuzzy controllers is developed in order to maximize the generated output power of a solar panel in a photovoltaic system: fuzzy-based sun tracking and maximum power point tracking. The sun tracking is performed by changing the solar panel orientation in horizontal and vertical directions by two DC motors properly designed. A DC-DC converter is employed to track the solar panel maximum power point. In addition, the proposed system has the capability of the extraction of solar panelI-Vcurves. Experimental results present that the proposed fuzzy techniques result in increasing of power delivery from the solar panel, causing a reduction in size, weight, and cost of solar panels in photovoltaic systems.
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Stolicny, C. "Panel Summaries - ITC 2001 panels: part 2." IEEE Design & Test of Computers 19, no. 2 (2002): 74–76. http://dx.doi.org/10.1109/mdt.2002.990446.
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Stolicny, C. "ITC 2003 panels: Part 1 [Panel Summaries]." IEEE Design & Test of Computers 21, no. 2 (2004): 160–63. http://dx.doi.org/10.1109/mdt.2004.1277910.
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Herwartz, Helmut, Simone Maxand, Fabian H. C. Raters, and Yabibal M. Walle. "Panel Unit-root Tests for Heteroskedastic Panels." Stata Journal: Promoting communications on statistics and Stata 18, no. 1 (2018): 184–96. http://dx.doi.org/10.1177/1536867x1801800111.
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In this article, we describe the command xtpurt, which implements the heteroskedasticity-robust panel unit-root tests suggested in Herwartz and Siedenburg (2008, Computational Statistics and Data Analysis 53: 137–150), Demetrescu and Hanck (2012a, Economics Letters 117: 10–13), and, recently, Herwartz, Maxand, and Walle (2017, Center for European, Governance and Economic Development Research Discussion Papers 314). While the former two tests are robust to time-varying volatility when the data contain only an intercept, the latter test is unique because it is asymptotically pivotal for trending heteroskedastic panels. Moreover, xtpurt incorporates lag-order selection, prewhitening, and detrending procedures to account for serial correlation and trending data.
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Ooshaksaraei, P., K. Sopian, R. Zulkifli, and Saleem H. Zaidi. "Characterization of Air-Based Photovoltaic Thermal Panels with Bifacial Solar Cells." International Journal of Photoenergy 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/978234.
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Photovoltaic (PV) panels account for a majority of the cost of photovoltaic thermal (PVT) panels. Bifacial silicon solar panels are attractive for PVT panels because of their potential to enhance electrical power generation from the same silicon wafer compared with conventional monofacial solar panels. This paper examines the performance of air-based bifacial PVT panels with regard to the first and second laws of thermodynamics. Four air-based bifacial PVT panels were designed. The maximum efficiencies of 45% to 63% were observed for the double-path-parallel bifacial PVT panel based on the first law of thermodynamics. Single-path bifacial PVT panel represents the highest exergy efficiency (10%). Double-path-parallel bifacial PVT panel is the second preferred design as it generates up to 20% additional total energy compared with the single-path panel. However, the daily average exergy efficiency of a double-path-parallel panel is 0.35% lower than that of a single-path panel.
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Zand, Manzour, Paul Bassett, and Rubén Prieto-Díaz. "Closing panel (panel session)." ACM SIGSOFT Software Engineering Notes 26, no. 3 (2001): 173–75. http://dx.doi.org/10.1145/379377.375289.
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You, Jangyoul, Myungkwan Lim, Kipyo You, and Changhee Lee. "Wind Coefficient Distribution of Arranged Ground Photovoltaic Panels." Sustainability 13, no. 7 (2021): 3944. http://dx.doi.org/10.3390/su13073944.
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Solar panels installed on the ground receive wind loads. A wind experiment was conducted to evaluate the wind force coefficient acting on a single solar panel and solar panels arranged in an array. The surface roughness did not have a significant effect on the change in vertical force, which is the wind force coefficient acting on the vertical surface of a single solar panel. An examination of the change in wind direction angle showed that the largest vertical force coefficient was distributed in the 0° forward wind direction on the front of the solar panel, the 345° reverse wind direction on the rear side, and the 135° and 225° diagonal directions on the rear panel. Furthermore, an examination of the change in wind force coefficient according to the change in solar panel inclination angle (β) showed that the drag coefficient was the highest at the 40° inclination angle of the panel (β), followed by the 30° and 20° inclination angles. However, the lift coefficient and vertical force coefficient were not significantly affected by the inclination angle of the panel. The wind force coefficient of the panels arranged in an array was influenced by the wind direction angle and panel position. With the exclusion of the nearest row at a wind direction angle of 0°, all the panels in the array showed lower coefficients than those in the single-panel experiment. In the case of the panels placed inside, the wind speed was decreased by the surrounding panels. As a result, the wind force coefficient was lower than that of the single-panel experiment. This outcome is attributed to the small delamination at the end of the panels by the surrounding array of panels compared with that of the single-panel experiment.
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Alamri, Hatem R., Hegazy Rezk, Heba Abd-Elbary, Hamdy A. Ziedan, and Ahmed Elnozahy. "Experimental Investigation to Improve the Energy Efficiency of Solar PV Panels Using Hydrophobic SiO2 Nanomaterial." Coatings 10, no. 5 (2020): 503. http://dx.doi.org/10.3390/coatings10050503.
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This research aims to experimentally improve the overall efficiency of solar photovoltaic (PV) panels by coating them with hydrophobic SiO2 nanomaterial. Also, an accurate mathematical model was used to estimate the parameters of the PV panel, which is a non-linear optimization problem. Based on the experimental data and using the particle swarm optimization (PSO) algorithm, the optimal five parameters of a single diode model of a PV panel were determined in this study. This experimental work was conducted and carried out in the Renewable Energy Laboratory of Assiut University, Egypt. A comparative analysis was completed for three identical solar PV panels; the first panel was coated with hydrophobic SiO2 nanomaterial, so it was considered to be a self-cleaning panel; the second panel was uncoated and cleaned manually on a daily basis; and the third panel was kept dusty all the time through the experimental investigation, and was used as a reference. Experimentally, the output power of the PV panels was monitored for each panel in this study. Also, the anti-static and anti-reflection effects of coating solar PV panels with hydrophobic SiO2 nanomaterial were investigated experimentally. According to the obtained experimental results, it was found that the use of SiO2 coating for PV panels results in the better performance of the PV panels. The overall efficiency of the coated panel increased by 15% and 5%, compared to the dusty panel and the uncoated panel which was manually cleaned daily, respectively.
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Hoseinie, Seyed, and Behzad Ghodrati. "Analysis of panel design experiments in advanced longwall mines." Podzemni radovi, no. 37 (2020): 19–32. http://dx.doi.org/10.5937/podrad2037019h.
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Panel design and its geometry affects the productivity, strata control and operational costs of longwall mining. Selection the suitable panel size is a critical stage which needs a wide range of geological, technological and economical inputs. Seam height and overburden are two uncontrollable factors which play an important role in longwall mine design. Panel width, panel length and layout of whole mine are main design parameters which are selected based on uncontrollable factors and technological restrictions. In this paper the geometrical characteristics of 61 longwall panels in 46 operating mines of USA have been applied for statistical analysis and extracting some experimental design benchmarks. The analysis shows that average seam height, panel overburden, panel width and panel length are 2.26, 200, 361.5 and 3455 respectively. Average panel width to depth ratio is 1.53 and panel length to width ratio is 9.55. The 3D data analysis reveals that overburden is more important than seam height in enlargement of longwall panels and maximum of the panel area (panel length multiplied by panel width) occurs when the overburden is between 150 to 250 meters and seam height is from 1.5 to 2.5 meters. Also, 50 percent of the studied advanced longwall panels the width to depth ratio varies from one to two. It confirms that even in shallow panels the designers have selected larger panel dimensions to enhance the productivity by considering some subsidence problems and high caving pressures.
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Toto Supriyono, Muhammad Ramandani, Herman Soemantri, and Murtalim. "UJI PERFORMANSI SOLAR PANEL KAPASITAS 100 WP." Jurnal Teknik Mesin Mechanical Xplore 2, no. 2 (2022): 35–48. http://dx.doi.org/10.36805/jtmmx.v2i2.2172.
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Panel surya merupakan komponen penting dari suatu sistem pembangkit listrik tenaga surya yang berfungsi mengkonversi cahaya matahari menjadi energi listrik DC. Arus listrik yang dihasilkan oleh panel surya dapat dialirkan ke baterai sebagai tempat penyimpanan listrik. Intensitas cahaya matahari dan temperatur lingkungan yang berbeda di setiap wilayah serta kenaikan temperatur kerja panel surya dapat mempengaruhi efisiensi panel surya. Pengujian performansi panel surya diperlukan untuk mengetahui efisiensi konversi energi cahaya matahari menjadi listrik DC. Pengujian performansi panel surya telah dilakukan di kampus IV Universitas Pasundan Bandung dengan menggunakan panel surya tipe polycristalline yang berkapasitas 100Wp. Pengukuran dilakukan selama 30 hari menggunakan sistem data akuisisi. Besaran yang diukur adalah intensitas cahaya matahari, temperatur, tegangan dan arus yang keluar dari panel surya secara realtime. Beban yang digunakan untuk menerima suplai tegangan dan arus dari panel surya adalah baterai (Accu). Hasil pada pengujian menunjukkan bahwa panel surya yang diuji memilki efisiensi sebesar 11.4%. Kinerja ini lebih rendah 5.5% dari kinerja panel surya yang diukur pada STC. Besar daya keluaran tertinggi mencapai 63.1 W.
 Solar panels are an essential component of a solar power generation system that converts sunlight (photon) into direct current electricity. The electric current generated by the solar panels flows into the battery as electricity storage. The sunlight intensity and the elevated temperatures on the solar panels affect the efficiency of solar panels. Performance measurement of solar panels is needed to determine their efficiency. Performance measurement of solar panels has been carried out on campus IV, Pasundan University using polycrystalline type solar panels with a capacity of 100Wp. Measurements have been carried out for 30 days using a data acquisition system. The quantities measured are the intensity of sunlight, temperature, voltage and current generated in real-time. The measurement result shows that this solar panel has an efficiency of 11.4%. This is 5.5% lower than the solar panel performance as measured by STC. The highest output power reaches 63.1 W.
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Chenxi, L. I., H. U. Ying, and H. E. Liyan. "Exploration and optimization on the usage of micro-perforated panels as trim panels in commercial aircrafts." Noise Control Engineering Journal 68, no. 1 (2020): 87–100. http://dx.doi.org/10.3397/1/37687.
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Micro-perforated panels (MPPs), as an alternative to porous materials for sound absorption, have been commonly used in electronic industries and aircraft engines but are barely used in aircraft cabins. The effect of MPPs on the sound insulation and absorption properties of aircraft cabin panels has been investigated in this article. Theoretical modeling has been conducted on an aircraft cabin panel structure with a trim panel replaced by an MPP trim panel, using the transfer matrix method and the classic MPP theory. It is indicated by the theoretical results that, although the sound transmission loss (STL) of the cabin panel with an MPP trim panel is lower than that with an un-perforated panel, the MPP trim panel can significantly enhance the sound absorption coefficient of the entire cabin panel structure. Based on the well-developed MPP theory, the sound absorption coefficient of an aircraft cabin panel with an MPP trim panel can be improved by optimizing the MPP's parameters at a specific frequency. Taking an engine frequency 273 Hz as an example, the optimization can increase the sound absorption coefficient to 1 by using the doublelayered MPPs. When the thermal acoustic insulation blanket is considered, although the STL of the proposed structure with double-layered MPP trim panels in a diffuse field is lower than those without MPP trim panels, the sound absorption in the cabin is significantly enhanced due to the double-layer MPP trim panel at the specific engine frequency and across all frequencies. The STL of the structure with double-layered MPP trim panels and TAIB can be higher than 40 dB from 880 Hz in a diffuse field, which implies its effectiveness as sound insulation structure in aviation industry. MPP trim panels provide a new idea for the design of aircraft cabin panels and areworthy of further research
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Budiyanto, Budiyanto, and Hery Setiawan. "Analisa Perbandingan Kinerja Panel Surya Vertikal Dengan Panel Surya Fleksibel Pada Jenis Monocrystalline." RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) 4, no. 1 (2021): 77. http://dx.doi.org/10.24853/resistor.4.1.77-86.
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Permasalahan utama dari solar cell adalah perbedaan jenis solar cell yang mengakibatkan perbedaan kinerja pada solar cell tersebut. Besarnya daya keluaran yang dihasilkan relatif tidak konstan karena dipengaruhi oleh besarnya intensitas matahari serta suhu lingkungan di sekitarnya. Untuk mengatasi masalah tersebut maka tugas akhir ini dirancang untuk melakukan perbandingan panel surya monocrystalline jenis vertikal dan jenis fleksibel.Pada hasil pengujian dengan pencahayaan matahari panel surya fleksibel menghasilkan efisiensi lebih tinggi dibanding dengan panel surya vertikal, yaitu 20,8774%, sedangkan panel surya vertikal meghasilkan efisiensi sebesar 19,2844%. Dalam penggunaan simulasi pencahayaan lampu panel surya vertikal menghasilkan efisiensi yang cukup tinggi dan lebih tinggi dibanding panel surya fleksibel, yaitu 20,4818% sedangkan panel surya fleksibel menghasilkan efisiensi sebesar 16,4044%. Pada panel surya fleksibel dengan bentuk cembung 25° menghasilkan efisiensi sebesar 15,3200. Pada bentuk cekung 25° menghasilkan efisiensi 15,6265%.The main problem with solar cells is the different types of solar cells that result in differences in the performance of the solar cell. The amount of output power produced is relatively not constant because it is influenced by the intensity of the sun and the temperature of the surrounding environment. To overcome this problem, this final project is designed to compare the vertical and flexible monocrystalline solar panels. In the test results with solar lighting, flexible solar panels produce higher efficiency than vertical solar panels, which is 20.8774%, while vertical solar panels resulted in an efficiency of 19.2844%. In the use of simulated lighting, vertical solar panel lights produce high and higher efficiency than flexible solar panels, namely 20.4818%, while flexible solar panels produce an efficiency of 16.4044%. In a flexible solar panel with a convex shape of 25° it produces an efficiency of 15.3200. In the concave shape of 25° it produces an efficiency of 15.6265%.
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Guo, Yanning, Yu'e Ma, Wenbo Sun, Yong Xue, and Chunwei Kuang. "Effects of residual stress on the stability of multi-welded integral stiffened panels." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 39, no. 3 (2021): 586–92. http://dx.doi.org/10.1051/jnwpu/20213930586.
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In order to clarify the influence of residual stress on the stability of 2024-T3 friction stir welded(FSWed) integral stiffened panels with multi-welds, the ANSYS software was used to establish the finite element models of two typical multi-FSWed stiffened panels. The residual stresses of two typical multi-welded stiffened panels (Panel A and Panel B) were calculated respectively using the thermal-mechanical coupling method. And the buckling and post-buckling responses of the stiffened plates were analyzed. It is shown that the residual stress distribution of stiffened panel was affected by the welding sequence. The maximum residual stress of Panel A mainly appears on the right side of the stringer, and that of Panel B appears on the stringer that is welded later. The residual stress has a great influence on the stability of the welded stiffened panels. When the residual stress profiles are taken into consideration, the critical buckling loads of welded Panel A and Panel B will decrease 14.2% and 12.4% respectively.
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LAKSANA, EKA PURWA, OKTIVIYANTO SANJAYA, SUJONO SUJONO, SUWASTI BROTO, and NIFTY FATH. "Sistem Pendinginan Panel Surya dengan Metode Penyemprotan Air dan Pengontrolan Suhu Air menggunakan Peltier." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 10, no. 3 (2022): 652. http://dx.doi.org/10.26760/elkomika.v10i3.652.
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ABSTRAKSalah satu faktor yang dapat mempengaruhi efisiensi panel surya adalah suhu pada modul panel surya. Efisiensi panel surya akan menurun seiring dengan naiknya suhu panel surya. Oleh karena itu, dibutuhkan suatu mekanisme pendinginan pada sistem panel surya untuk dapat meningkatkan efisiensi panel surya. Pada penelitian ini, dirancang sebuah sistem pendinginan panel surya dengan metode penyemprotan air dan pengontrolan suhu air. Jika suhu telah mencapai 40oC, pompa yang terdapat pada bak penampungan air akan bekerja mengalirkan air ke permukaan panel surya. Dengan demikian, suhu pada panel surya dapat dikontrol agar sesuai dengan set point yang diinginkan yakni di bawah 40oC. Sistem pengontrolan suhu air dengan peltier dan fan dilakukan untuk mengontrol suhu air di dalam bak penampungan air agar tetap berada pada suhu maksimal 39oC. Sistem pendinginan panel surya pada penelitian ini mampu meningkatkan daya keluaran panel surya sebesar 30,19%.Kata kunci: panel surya, pendingin, semprotan air, peltier ABSTRACTThe solar panels efficiency can be affected by the the temperature of the solar panel module. It will decrease as the temperature of the solar panels increases. Therefore, a cooling mechanism in the solar panel system is needed to increase the efficiency of the solar panels. In this study, a solar panel cooling system was designed with the method of spraying water and controlling water temperature. If the temperature has reached 40oC, the pump in the water reservoir will work to circulate water to the surface of the solar panel. Thus, the temperature on the solar panel can be controlled to match the desired set point, which is below 40oC. The water temperature control system with peltier and fan is carried out to control the temperature of the water in the water reservoir so that it remains at the maximum temperature of 39oC. The solar panel cooling system in this study was able to increase the solar panel output power by 30.19% when using the cooling system.Keywords: solar panels, cooling, water spray, peltier
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Wardana, Dimas Pramudya, and Rizki Nurilyas Ahmad. "ANALISIS PERBANDINGAN KINERJA SISTEM PENDINGIN PV DENGAN CAIRAN AQUADES, AIR SUMUR, DAN TANPA PENDINGIN DENGAN MONITORING IOT." JURSIMA 12, no. 2 (2024): 290–301. http://dx.doi.org/10.47024/js.v12i2.884.
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Solar Power Plants are an environmentally friendly energy source that utilizes sunlight energy which is converted into electricity. However, solar panels must maintain their performance. One of the impacts is that solar panels cannot work optimally if the temperature of the solar panels exceeds the safe temperature. This research examines the factors that cause the performance of solar panels to not work optimally, when the surface temperature of the solar panels is too hot and exceeds the safe temperature limit, then tools are needed to help the solar panels so that the working temperature is not too high. The technology used to control the temperature of solar panels is by utilizing IoT by maximizing the DS18B20 sensor and voltage sensor, to read the surface temperature of the panel, which will then wet the surface of the solar panel with distilled water and well water automatically if the surface temperature of the panel exceeds the safe temperature on the solar panel. And later you can monitor the temperature of the panel with a smartphone and also observe whether distilled water and well water can reduce the temperature on the surface of the panel. When collecting data, it can be compared to when without using cooling, the temperature on the panel is above 33 degrees. Meanwhile, when using a cooler the temperature obtained decreases. The well water cooler produces a temperature of 32 degrees, while the distilled water cooler produces a temperature of 30.5 degrees. It can be concluded that distilled water can reduce the temperature of the panel, so it can make the panel work optimally. So, in order to maximize the performance of the panels to utilize solar power, in this research, distilled water is very good for lowering the temperature on the surface of the panels.
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Harunurrasyid, Harunurrasyid, M. Mardalena, Imam Asngari, Siti Rohima, and Sri Andaiyani. "SHORT AND LONG TERM ANALYSIS OF FOREIGN EXCHANGE RATES BASED ON INCOME LEVELS." Journal of Economic Development, Environment and People 11, no. 2 (2022): 55–72. http://dx.doi.org/10.26458/jedep.v11i2.748.
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The study aimed to determine the effect of foreign exchange demand and supply on exchange rates in four groups of countries based on per capita income levels from 1989-2018 using the ARDL panel method. The results showed remittances had a significant effect on exchange rates in panel A (low income countries), panel B (lower middle income countries), panel D (high income countries), while on panel C (upper middle income countries) remittances had no significant effect. Export and import variables have a significant effect on panels B, C, and D, and are not significant on panelS A. Meanwhile inflation variables have a significant effect on all types of panels.
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Mohite, Ms Amruta. "Design and Analysis of Radiant Ceiling Cooling Panels for Classroom." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 580–83. http://dx.doi.org/10.22214/ijraset.2021.35031.
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In this study, radiant cooling panel is designed for a classroom. An arrangement is made such that the panels cover 70% of ceiling area. For study case a classroom is considered which need 27 such panels for covering 70% of area. The arrangement of panels, water flow rate, required temperature and amount of heat transfer taking place through panels is discussed in the paper. A cooling system is selected for maintaining the desired water temperature. Comparison is done between the cooling systems and the user can use any of them according to the requirements and cost. This system does not use any refrigerant hence it is environment friendly and can add a considerable solution to maintain temperature of a specific area. CFD analysis of the panel shows that adequate heat transfer takes place between panel and the room, this validates the design. When 15 ºC water is given as inlet to the panel, we get 22 ºC water as output at outlet of panel. In this paper, analysis is done for single panel same can be done for entire arrangement of panel structure.
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Lie, Wen-Rong, and Jehangir Mistry. "Proteomic profiling of activated immune cells using quantitative multiplex bead-based assays to identify secretome and cell signaling protein signatures (TECH1P.869)." Journal of Immunology 192, no. 1_Supplement (2014): 69.37. http://dx.doi.org/10.4049/jimmunol.192.supp.69.37.
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Abstract Multiplex bead-based assays using the Luminex® xMAP® technology allows the simultaneous quantitation of soluble mediators involved in adaptive immune responses. Here we report on the quantitative profiling of the immune secretome and cell signaling target proteins to uncover the characteristics of a CD40L/IFN-γ-activated mature dendritic cell (DC)-based vaccine and the characteristics of T-cell responses generated upon vaccination. Over 200 secreted proteins were evaluated using the Human MILLIPLEX® MAP magnetic bead panels (Cytokine/Chemokine Panels 1-3, High Sensitivity T Cell Panel, CD8 Panel, Th17 Panel, Soluble Cytokine Receptor Panel, Angiogenesis/Growth Factor Panel , MMP & TIMP Panels, IGFBP Panel, Sepsis Panels, Cancer Panels 1-4, CVD Panels 1-3, and others). Additionally, the activation status of a DC-vaccine was profiled using MILLIPLEX® MAP intracellular MAPK/SAPK Pathway multiplex panel. Representative heat maps indicated differences in secreted protein concentrations, biomarker signatures and phosphorylation status in GM-CSF/IL-4-derived immature DCs and CD40L/IFN-γ-activated mature DCs. Furthermore, vaccine-induced antigen-specific CD8+ T cells presented 2 distinct phenotypes based on secretome profiling, and these profiles correlated with clinical outcomes. Consequently, these data demonstrate the utility of MILLIPLEX® panels using the Luminex® xMAP® technology for the characterization of adaptive immune responses in vaccine/immunotherapy setting.
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Peters, Sunday O., Mahmut Sinecan, Kadir Kizilkaya, and Milt Thomas. "PSIII-5 Comparison of Bivariate Machine Learning and Linear Model for Genomic Prediction with Different Heritability, QTL and SNP Panel Scenarios." Journal of Animal Science 98, Supplement_4 (2020): 230–31. http://dx.doi.org/10.1093/jas/skaa278.424.
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Abstract This simulation study used actual SNP genotypes on the first chromosome of Brangus beef cattle to simulate 0.50 genetically correlated two traits with heritabilities of 0.25 and 0.50 determined either by 50, 100, 250 or 500 QTL and then aimed to compare the accuracies of genomic prediction from bivariate linear and artificial neural network with 1 to 10 neurons models based on G genomic relationship matrix. QTL effects of 50, 100, 250 and 500 SNPs from the 3361 SNPs of 719 animals were sampled from a bivariate normal distribution. In each QTL scenario, the breeding values (Σgijβj) of animal i for two traits were generated by using genotype (gij) of animal i at QTL j and the effects (βj) of QTL j from a bivariate normal distribution. Phenotypic values of animal i for traits were generated by adding residuals from a bivariate normal distribution to the breeding values of animal i. Genomic predictions for traits were carried out by bivariate Feed Forward MultiLayer Perceptron ANN-1–10 neurons and linear (GBLUP) models. Three sets of SNP panels were used for genomic prediction: only QTL genotypes (Panel1), all SNP markers, including the QTL (Panel2), and all SNP markers, excluding the QTL (Panel3). Correlations from 10-fold cross validation for traits were used to assess predictive ability of bivariate linear (GBLUP) and artificial neural network models based on 4 QTL scenarios with 3 Panels of SNP panels. Table 1 shows that the trait with high heritability (0.50) resulted in higher correlation than the trait with low heritability (0.25) in bivariate linear (GBLUP) and artificial neural network models. However, bivariate linear (GBLUP) model produced higher correlation than bivariate neural network. Panel1 performed the best correlations for all QTL scenarios, then Panel2 including QTL and SNP markers resulted in better prediction than Panel3.
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Hietala, Mikko, Antti Järvenpää, Markku Keskitalo, and Kari Mäntyjärvi. "Bending Strength of Laser-Welded Sandwich Steel Panels of Ultra-High Strength Steel." Key Engineering Materials 786 (October 2018): 286–92. http://dx.doi.org/10.4028/www.scientific.net/kem.786.286.
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The study was performed to investigate the bending resistance of laser-welded sandwich panels (Vf-core). The main aim of the study was to determine the effect of the tensile strength on bending strength of the panel structures. Panels were manufactured using an ultra-high strength (UHS) and low strength (LS) steels with yield strengths of 1200 and 200 MPa, respectively. Secondly, the bending strength of the panel structures was compared with the conventional sheet steels to estimate the possibilities for weight reduction. Results showed that the UHS steel panels had significantly higher bending strength than panels of the LS steel. The bending strength in the weakest loading direction of the UHS panel was approximately four times higher than the one of LS steel panel. The panels made with UHS steel faceplates and LS steel cores had better bending strength than LS steel panels. In comparison to UHS sheet steel, 30% weight saving is estimated by using the geometry optimized UHS steel panel.
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Larsson, Rolf, and Johan Lyhagen. "Inference in Panel Cointegration Models With Long Panels." Journal of Business & Economic Statistics 25, no. 4 (2007): 473–83. http://dx.doi.org/10.1198/073500106000000549.
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Amato, Anthony A., and Mary M. Reilly. "The death panel for Charcot-Marie-Tooth panels." Annals of Neurology 69, no. 1 (2011): 1–4. http://dx.doi.org/10.1002/ana.22272.
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., Abdullah, Maharani Putri, and Juli Iriani. "Analysis of the Effect of Tilt Position and Surface Temperature Levels of Solar Panels in Optimizing Solar Panel Performance." International Journal of Research and Review 10, no. 12 (2023): 372–80. http://dx.doi.org/10.52403/ijrr.20231241.
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The impact of increasing energy needs requires the search for alternative energy, one of which is the use of abundant solar energy. This solar energy is processed through solar panels to convert it into electrical energy. Solar panels can function optimally if they are exposed to maximum sunlight and are at the right working temperature. The challenge faced is, to get maximum sunlight, solar panels must be directed towards sunlight. However, continuous exposure to sunlight causes an increase in the surface temperature of the panel, which ultimately reduces the output power of the solar panel. Therefore, a special design is needed to overcome this problem. The solution implemented is a solar panel optimization system by adjusting the tilt of the panels and using a cooling system connected to the Internet of Things (IoT). The goal of this system is to maximize solar panel performance by maintaining maximum sunlight exposure and panel operating temperature within the appropriate range. The method used is to adjust the tilt of the panel so that it is always at the maximum angle of sunlight, and to use the Peltier effect on water as a surface cooling system for the solar panels. The parameters monitored in this research include voltage from the LDR light sensor, solar panel tilt angle, solar panel temperature, and cooling water temperature from the Peltier effect, as well as voltage, current, and power in comparison between standard solar panels (without a design system) and panels. solar using system design. Monitoring is carried out in real time using Internet of Things-based technology. The test results show that the system can function well as a solar panel optimization system integrated with the Internet of Things. A power increase of 36.91% was achieved by comparing the system without design with the design system (angle adjustment and cooling). In addition, the real-time remote monitoring concept has proven effective in observing the value of electrical energy produced by solar panels in an integrated Internet of Things application. Keywords: solar panels, position, surface temperature, analysis.
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Zhang, Ya, Qingmin Chen, Mingwei Wang, Xi Zhang, and Zhongyi Cai. "Plastic Forming of Sandwich Panels and Numerical Analyses of the Forming Processes Based on Elastoplastic Equivalent Model." Materials 14, no. 17 (2021): 4955. http://dx.doi.org/10.3390/ma14174955.
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This paper studies the plastic forming of sandwich panels and proposes a universal elastoplastic equivalent method suitable for sandwich panels. To verify the generality of the equivalent method, according to the different core structures, the cores of bi-directional trapezoidal sandwich (BTS) panels and aluminum foam sandwich (AFS) panels are equated to orthotropic and isotropic (special orthotropic) single-layer panels respectively. Through the finite element (FE) numerical simulation of the mesoscopic model of the sandwich panel, the elastoplastic constitutive relationship of the equivalent core model is established, and then the macroscopic equivalent model of the sandwich panel is established. The FE numerical simulation of plastic forming was carried out for the mesoscopic model and equivalent model of BTS panel and AFS panel, and plastic forming experiments were conducted for the sandwich panel through a multi-point forming (MPF) test machine. The results show that the relative errors of the section average stress at the same position of the equivalent model and the mesoscopic model of sandwich panels are all within 4%; compared with the experimental results, the equivalent model of the sandwich panel has high forming accuracy and small shape error, which verifies the high accuracy and generality of the equivalent method. Moreover, using the sandwich panel equivalent model effectively reduces the calculation time of the numerical simulation.
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Dabral, Atulesh, Rahul Kumar, S. C. Ram, Amit Morey, Sumit Mohan, and Devesh Sharma. "Effect of Anti-Reflective and Dust Spreading on Performance of Solar PV Panels." IOP Conference Series: Earth and Environmental Science 1285, no. 1 (2024): 012029. http://dx.doi.org/10.1088/1755-1315/1285/1/012029.
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Abstract This study intends to better solar photovoltaic (PV) panel performance by employing anti-reflective coating and explore how dust affects solar panel effectiveness. Three equivalent solar PV panels were compared, having one of them being uncoated, the next one having a TiO2 nanomaterial coating, and the very last one having a SiO2 nanomaterial coating. PV panel surfaces are coated with superhydrophilicity TiO2 as well as superhydrophobic SiO2 nanomaterials using a cloth made of microfibers. With the aid of a photovoltaic (PV) analyser, the power output of each and every PV panel has been monitored during the month of November 2021. After one month of being exposed to the environment, the percentage improvement in efficiency for TiO2-coated panels was 7.66% and for SiO2 coated panels was 19.73% as compared to uncoated PV panels. Results demonstrate that SiO2 covered PV panels outperform the other two scenarios in terms of efficiency and power output. The frequency of photovoltaic panel washing is reduced by the application of coating. Different amounts of dust are evenly scattered on the surface of the PV panel in order to observe the effect of the dust. Additionally, as the amount of dust increases, the effectiveness of PV panels declines considerably. When 20g of dust is dispersed across the surface of a PV panel, its efficiency falls by 34.6 percent.
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MS, Vinay Prasad, Conjeevaram Shravan, Harshitha V. Raj, Mohamed Farhan Faza, and Niranjan Naidu P M. "Automatic Solar Panel Positioning and Maintenance System." International Journal for Research in Applied Science and Engineering Technology 10, no. 9 (2022): 1855–61. http://dx.doi.org/10.22214/ijraset.2022.46865.
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Abstract: Renewable energy is a type of energy that is derived from ongoing natural processes and energy of natural processes converted into available forms. Solar energy is any type of energy that is generated by the sun. To make use of this energy and convert it into electricity we use solar panels. A solar panel has maximum productivity when the sun rays are incident at right angle to it. Usual home use solar panels are fixed in a stationary position hence there will be only a certain time in the day that the sun-rays are incident at right angle on the panel. A solar tracking system is a single-axis rotating system which aims for solar panels to operate by tracking the sun's movement throughout the day which makes it possible for the rays to arrive perpendicular to the panels. This maximises the productivity of the panel. Solar tracking system was designed which used LDRs in form of a voltage divider circuit to sense the sunlight and actuate the stepper motor to rotate the panel over a single-axis so that the sun-rays the panel is perpendicular to the sun-rays. This model was tested out alongside a stationary solar panel. Readings were noted down of both panels every hour. The panel with the tracking system proved to be more productive than the stationary panel as it had generated more power over each hour. The panel could be moved both automatically with the help of the sensors and through manual mode using the blynk UI
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Altınkaya, Hüseyin, and Faysil Abdulhamid Sulayman Alfirjani. "Real-Time Control and Performance Analysis of PLC-SCADA Supervised Stand-Alone Solar Tracking Systems." Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi 12, no. 1 (2025): 108–36. https://doi.org/10.35193/bseufbd.1463785.
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This paper presents the real-time control of single-axis and dual-axis solar tracking systems, as well as monitoring of a fixed solar panel system, using PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition). The systems were designed using a novel tracking mechanism and a novel energy generation evaluation method. Based on their efficiencies as well as the power they produced, these three solar panel systems were compared accordingly. In all three systems, identical solar panels having 100 Wp power were used. To control both single-axis and dual-axis solar panels efficiently, an S7-1200 type PLC was employed. Real-time clock and astronomical data were used to control the axis angle of the PV panels. The system was comprehensively monitored and controlled in real-time through the implementation of PLC-SCADA software. The obtained data were recorded and displayed on SCADA screen, and were subsequently analyzed to determine the power output of the three panels under varying climatic conditions. The evaluation of the obtained results was made accordingly. In a total of 61-day period which encompassed 42 days of sunshine, 11 days of cloud and 8 days of rain, double-axis photovoltaic panel produced 337.34 Wh, single-axis photovoltaic panel generated 314.32 Wh and fixed photovoltaic panel produced 220.49 Wh on average. On daily average, double-axis photovoltaic panel produced 7.32% more energy as compared to single-axis photovoltaic panel and 52.99% more energy as compared to fixed photovoltaic panel, whereas single-axis photovoltaic panel produced 42.55% more energy than fixed photovoltaic panel.
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Elumalai, E. S., R. Asokan, C. M. Thejus, N. Uday Ranjan Goud, and Seralathan Sivamani. "Numerical investigations of the buckling behaviour of an integrated stiffened panel." Journal of Physics: Conference Series 2837, no. 1 (2024): 012063. http://dx.doi.org/10.1088/1742-6596/2837/1/012063.
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Abstract Stiffened panels are used to reduce the displacement by loading. This study deals with the numerical simulation of stiffened panels in which the stiffeners are integrated to the panel. The panel is subjected to compressive load along the stiffener axis. This induces buckling stress in the structure. In this study, a Tee shaped stiffener is used for analysis. The focus of the study is to investigate the deformation as well as structural integrity of an integrated stiffened panel by performing buckling analysis and all the comparisons are made with conventional stiffened panel using ANSYS software. The simulation reveals that the integrated stiffened panel gives an improved performance than the conventional design. The integrated stiffened panel shows around 1.2% higher strain rate, stress capacity higher by nearly 4.864% and around 20.25% deformation resistance variation compared to the conventional panel. Therefore, the integrated stiffened panel is found to be an acceptable alternative to the conventional stiffened panel design.
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O’Ceallaigh, Conan, Karol Sikora, and Annette Harte. "The Influence of Panel Lay-Up on the Characteristic Bending and Rolling Shear Strength of CLT." Buildings 8, no. 9 (2018): 114. http://dx.doi.org/10.3390/buildings8090114.
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The objective of this study was to characterise the behaviour of cross laminated timber (CLT) panels and the influence of the panel lay-up on the failure strength. Three different panel configurations of thickness, 60 mm, 100 mm, and 120 mm, were loaded in the out-of-plane direction. The 60 mm and 120 mm panel configuration comprised three layers of equal thickness, and the intermediate 100 mm thick panel comprised five layers of equal thickness. The mean and characteristic bending and rolling shear strength of the panels were examined. The results show that the mean bending and rolling shear strength decrease with the panel thickness. The characteristic results have shown that there is an influence because of the number of boards within the panel. The characteristic bending strength values for the five-layer 100 mm thick panel were found to be higher than that of the three-layer 60 mm panel. The characteristic rolling shear values decreased in the five-layer panels, however, the increased number of layers subjected to the rolling shear results in a reduced variability in the rolling shear strength.
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Bennett, Kevin, Elizabeth Baxley, Charles Carter, and Michele Stanek. "Organized Continuity Panel Reassignment." Journal of Graduate Medical Education 3, no. 3 (2011): 404–7. http://dx.doi.org/10.4300/jgme-03-03-28.
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Abstract Background Structured continuity clinical experience is required in all primary care residency programs. There is a paucity of data on whether continuity patient panels are routinely used, what the ideal panel composition is, how panels are managed within residency programs across the country, and the outcomes related to this training requirement. Methods We designed an organized continuity panel reassignment process with the goal of producing balanced resident panels, that is, panels with similar numbers of patients by race/ethnicity, sex, and age group, as well as comparable numbers of patients with diabetes and those with high health care use. This project focused on postgraduate year-1 (PGY-1) panels to use balanced panels for redesign and focus of their initial training experiences on practice-based learning and patient care continuity. Results Findings suggest improved parity in patient care experiences through more evenly distributed panels. Furthermore, the focus on panel review and case management enhanced the curriculum for PGY-1 residents, whose clinical experiences and diabetes clinical quality indicators compared more favorably to residents in earlier classes. Conclusions Balanced continuity panels provide an enhanced substrate for building clinical curricula. Preliminary data suggest that this process helped contribute to improved quality indicators for patients with diabetes.
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Yang, Beibei, Zhenbao Li, Ping Liu, Hua Ma, Jiulong Yang, and Zhicheng Kang. "Full Size Two-Layer Steel Frame–Exterior Wall Panel Shaking-Table Test." Buildings 14, no. 3 (2024): 634. http://dx.doi.org/10.3390/buildings14030634.
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A cantilever block wall-panel attachment strip (CBW) flexible connection node was designed to connect precast concrete (PC) exterior wall panels to steel frames. To investigate the performance of the CBW flexible connection node and PC exterior wall panels during earthquakes, a partial two-storey steel frame was extracted from an actual engineering structure, and a full-scale steel frame–exterior wall panel shaking-table model was designed. Two sets of shaking-table tests were conducted under seismic intensity 7, 8, and 9 (Chinese Seismic Intensity Scale) earthquakes. The acceleration and displacement responses of the composite wall panel, open window panel, and integral wall panel along the in-plane and out-of-plane motions were analysed. The acceleration amplification factors of the PC exterior wall panels ranged from 0.753 to 1.400 (in-plane) and from 0.998 to 2.199 (out-of-plane). The CBW flexible connection node had a deformation capacity that could coordinate the deformation of the exterior wall panel and prevent severe damage. The surfaces of the PC exterior wall panels remained intact during a very strong seismic intensity 9 earthquake.
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King, Marcus, Dacheng Li, Mark Dooner, et al. "Mathematical Modelling of a System for Solar PV Efficiency Improvement Using Compressed Air for Panel Cleaning and Cooling." Energies 14, no. 14 (2021): 4072. http://dx.doi.org/10.3390/en14144072.
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The efficiency of solar photovoltaic (PV) panels is greatly reduced by panel soiling and high temperatures. A mechanism for eliminating both of these sources of inefficiencies is presented by integrating solar PV generation with a compressed air system. High-pressure air can be stored and used to blow over the surface of PV panels, removing present dust and cooling the panels, increasing output power. A full-system mathematical model of the proposed system is presented, comprised of compressed air generation and storage, panel temperature, panel cleaning, and PV power generation. Simulation results indicate the benefit of employing compressed air for cleaning and cooling solar PV panels. For a fixed volume of compressed air, it is advantageous to blow air over the panels early in the day if the panel is soiled or when solar radiation is most abundant with the highest achievable flow rate if the panel is clean. These strategies have been shown to achieve the greatest energy captures for a single PV panel. When comparing the energy for air compression to the energy gain from cleaning a single PV over a two-week period, an energy ROI of 23.8 is determined. The system has the potential to eliminate the requirement for additional manual cleaning of solar PV panels.
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Zhao, Kao Zhong, Feng Wang, and Xiao Feng Bian. "Experimental Study on Concrete-Filled Glass Fiber Reinforced Gypsum Wall Panel Compression Members." Advanced Materials Research 446-449 (January 2012): 16–22. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.16.
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The concrete-filled glass fiber reinforced gypsum wall panel is a kind of panel that the inside cavums of the glass fiber hollow gypsum panel are filled with concrete, which can be used as the bearing wall of a building. The influences of eccentricity distance and height to thickness ratio on the bearing capacity of the compression wall panels were studied, and the failure mechanism and bearing capacity of compression wall panels were gained through the experiments of twenty-seven(nine groups) axial compression wall panel specimens and twenty-seven(nine groups) eccentric compression wall panel specimens. The analysis results indicate that the bearing capacity of compression wall panels is obviously affected by the eccentricity distance and height to thickness ratio, and there is a linear relation between bearing capacity and eccentricity distance. The bearing capacity calculation formula of the concrete-filled glass fiber reinforced gypsum wall panel is obtained by regression analysis, which provides reliable gist for structural design of concrete-filled glass fiber reinforced gypsum wall panel buildings.
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Priyanga, R., and Gopinath Smitha. "Numerical Simulation of Thermo–Mechanical Response of Textile Reinforced Concrete Sandwich Panels." Journal of Construction and Building Materials Engineering (e-ISSN: 2581-6454) 6, no. 1 (2020): 15–20. https://doi.org/10.5281/zenodo.3687934.
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The sandwich panels are used as different types of structural systems for load bearing and non-load bearing construction. Textile reinforced concrete (TRC) is a novel construction material consisting of a cementitious binder and an alkali-resistant textile reinforcement which can yield a better environmental and structural performance. Generally, the sandwich panel includes lighter core material and stiffer skin material. The core material is selected in such a way that it provides thermal comfort to the whole system. In the present study, TRC sandwich panels are used to improve the structural and thermal performances by combining TRC with various core materials such as expanded polystyrene (EPS) and gypsum board. This leads to a lightweight and slim structure that could potentially provide high structural and thermal performances. TRC sandwich panels are an alternative to conventional load-bearing brick masonry panel construction. TRC sandwich panels are compared with that of conventional double brick masonry panels for the performance under thermo-mechanical loading conditions. Using realistic temperatures that prevail in India is used as an input data and the effect of temperature variation is investigated on the mechanical behaviour of TRC sandwich panel and brick masonry panel using finite element analysis. For all temperatures, TRC sandwich panel shows minimum strain compared to the masonry panel. The heat transfer results in lesser temperature for the inside face of the TRC sandwich panels than that of masonry panel.
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Maryani, Sri, RD Kusumanto, and Carlos RS. "Solar Panel Optimization Using Peltier Module TEC1-12706." Journal of Mechanical, Civil and Industrial Engineering 4, no. 3 (2023): 43–50. http://dx.doi.org/10.32996/jmcie.2023.4.3.6.
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One of the renewable energy sources that is presently being developed in Indonesia is the technology that converts solar energy into electrical energy using solar cells or PV panels. The power output of a solar panel is influenced by several factors, including solar radiation intensity, panel surface temperature, shading, and the angle of solar incidence. One factor that can influence the efficiency of a solar panel is the temperature of the solar module. The efficiency of a solar panel decreases as its temperature increases. Installing a Peltier TEC1-12706 on a PV panel will have an impact on heat absorption on the surface of the PV panel, thereby optimizing the power output of the PV panel. This study utilizes three monocrystalline solar panels with a power rating of 50 Wp, which are installed under three conditions: the first solar panel without a Peltier device, the second solar panel with twenty Peltier devices connected in series beside the solar panel, and the third solar panel with twenty Peltier devices connected in series both beside and beneath the solar panel. The output of these solar panels is remotely monitored using IoT as a connection to facilitate the monitoring and control of measured variables, including ambient temperature, solar panel surface temperature, voltage, current, solar panel output power, and efficiency. The data is collected at a height of approximately 12 meters in an outdoor laboratory at the Telecommunications Department of the Electrical Engineering Polytechnic of Sriwijaya Palembang. The measurements are collected between approximately 07:00 to 17:00 local time. The research results reveal that the monocrystalline PV panel with Peltier devices connected in series beneath and beside the solar panel has a higher absorption temperature compared to the solar panel without a Peltier device. Irradiance and ambient temperature have an influence on the voltage and current of the PV panel. The measured irradiance is directly influenced by the ambient temperature. The PV panel, with the addition of Peltier devices beneath and beside it, has an output voltage of 0.3 volts, a higher current value of 0.37 amperes, an increase in output power of 8.9 watts, and an overall average efficiency enhancement of 32.6% compared to the PV panel without a Peltier device.
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Rohman, Rizky Habibur, and Izza Anshory. "Assembly and Installation of SDP Lighting Panels." Procedia of Engineering and Life Science 7 (March 13, 2024): 217–22. http://dx.doi.org/10.21070/pels.v7i0.1447.
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Electrical panels have an important role in distributing electrical energy and securing it. One type of electrical panel that is often used is the SDP Panel (Sub Distribution Panel), especially in the context of lighting. This article discusses the assembly and installation process of SDP Lighting Panels, which have a crucial role in maintaining the availability, efficiency and safety of lighting systems. The SDP Panel assembly process involves preparing components such as MCB (Miniature Circuit Breaker), MCCB (Moulded Case Circuit Breaker), Fuse , ELCB (Earth Leakage Circuit Breaker), and other components. After that, these components are carefully assembled according to the previously prepared design. Next, SDP Panel installation involves installing the panels to a location according to the plan and connecting them to the building's main power system. Accurate wiring and thorough testing are necessary to ensure that the panels function properly. It is important to understand that SDP Lighting Panel installations must comply with applicable electrical safety regulations and standards to avoid the risk of fire, electrical disturbances or injury. Errors in the installation or assembly process can have a negative impact on the lighting system and safety. Therefore, a good understanding of the SDP Lighting Panel assembly and installation process is very important to ensure a reliable, efficient and safe lighting system
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Zhang, Wei, Shanshan Wang, Xiaoyuan Zheng, and Xin Xue. "Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core." Metals 14, no. 4 (2024): 383. http://dx.doi.org/10.3390/met14040383.
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Sandwich structures and porous materials have been applied widely in various fields due to their excellent mechanical performance, and multifunctional composites will have a significant engineering demand in the future. Studying damped composites’ mechanical properties and failure forms has significant engineering value and significance. However, the current connecting processes for sandwich panels and porous materials must be improved. Therefore, to explore the ambiguity of the connection interface between the core material and panel in sandwich panels, as well as the mechanical properties of such structures, a sandwich panel with a metal rubber core material was prepared using vacuum brazing and cementing processes. Microscopic examinations using scanning electron microscopy and energy-dispersive spectroscopy were conducted to observe the physical bonding mechanism at the interface of the sandwich panel. The results indicate that the brazed sandwich panels exhibited a more uniform and continuous interface than the cemented sandwich panels. This work designs three-point bending compression experiments to investigate the effects of core material thickness, density, and preparation process on the bending mechanical properties of the sandwich panel. Failure modes of the sandwich panel during the experiments are analyzed. The experimental results show that the failures of the brazed sandwich panels are attributable to the bending deformation of the panel and the shear failure of the metal wire core material. The cemented sandwich panels exhibit separation failures in the area below the indenter and at both ends of the panel. The core material’s thickness and density significantly influence the bending performance of the sandwich panels. An increase in the core material’s thickness and density effectively enhances the sandwich panels’ peak load and energy absorption capacity.
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Listarhov (Lixandru), A., and T. Catalina. "Experimental analysis of energy production of a hybrid thermal-photovoltaic solar panel enhanced with phase-change material." IOP Conference Series: Earth and Environmental Science 1185, no. 1 (2023): 012002. http://dx.doi.org/10.1088/1755-1315/1185/1/012002.
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Abstract The paper presents the difference between 2 photovoltaic thermal panels (PV/T), panels with the same initial characteristics. During the experiment, in PV/T panel no. 1 we introduce 14 kg of RT 35 phase change material, material with a liquid density at 45°C of 0.77 kg/l. According to the technical sheet of the panel, PV/T volume no. 1 was occupied 50% with PCM RT 35. Panel no. 2 is a normal PV/T. Following measurements made with the data recorder BTM-4208 SD, a difference of 6°C results on the faces of the panels. The energy production for PV/T no. 1 with PCM RT35 is 10.046 kWh compared to PV/T panel no. 2 where the energy production is 8.443 kWh. Conclusion: the efficiency of the PV/T panel no. 1 with PCM RT 35 is better by 15.20% compared to panel no. 2 PV/T.
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BATRAK, V. E., A. Yu GLAZUNOV, and G. A. GOLUBOVA. "DEVELOPMENT OF NATIONAL STANDARDS OF THE RUSSIAN FEDERATION FOR THREE AND TWO-LAYER PANELS HAVING THIN CLADDING SHEETS AND FOAM INSULATION." Bulletin of Science and Research Center of Construction 35, no. 4 (2023): 9–16. http://dx.doi.org/10.37538/2224-9494-2022-4(35)-9-16.
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Introduction. At present, the overall production of light two- and three-layer wall panels and coatings having metal claddings and efficient insulation is continuously increasing in Russia. Especially relevant is the use of sandwich panels, since industrial and administrative buildings can be quickly erected, thereby significantly reducing their payback period. Regulatory documents regulating the production processes of panels were mainly developed in the 1970s and 1980s. However, over the past 40–50 years, much has changed in the technology of panel production, including the development of advanced materials for panel layers, new structural joints, and approaches to assessing the safety of panels. New federal standards for panel constructions and testing methods were developed in order to account for the changes in the intervening period.Aim. In this work, changes that occurred in the production of laminated panels are addressed, including changes in technical requirements for panel design solutions, butt joints, panel materials, methods of selecting and testing insulation and panels, and safety and environmental protection, in order to inform the manufacturers and consumers on the use of new documents in the production and application of panels.Materials and methods. When developing new regulatory documents (GOST R), the existing documents and results of panel testing at the TSNIISK named after V.A. Koucherenko were analyzed, along with the identification of new materials and technical solutions on the basis of the technical materials of manufacturing plants.Results. The work established current technical requirements for panel design solutions, butt joints, panel materials, methods of selecting and testing insulation and panels, and safety and environmental protection. The following new provisions are given in the developed standards: the scope of application and classification of indicators are expanded, more efficient butt joints for panels are recommended, the consumption of insulation material is reduced, and new methods of testing insulation materials are proposed.Conclusions. The implementation of the developed GOST R will optimize the manufacturing process of two- and three-layer panels having efficient insulation, along with reducing the labor intensity of their production.
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Samsudin, Emedya Murniwaty, Lokman Hakim Ismail, Aeslina Abd Kadir, Ida Norfaslia Nasidi, and Noor Sahidah Samsudin. "Rating of Sound Absorption for EFBMF Acoustic Panels according to ISO 11654:1997." MATEC Web of Conferences 150 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201815003002.
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Empty fruit bunch fibre (EFB) and mesocarp fibre (MF) have been used in the fabrication of a new acoustic panel as a sound absorber for building. Measurements were carried out following ISO 354 in the mini reverberation chamber and the sound absorption performance of EFBMF acoustic panels were rated based on ISO 11654. Measurements of the new EFBMF acoustic panel involves five panel designs of 100 EFB dust panels, 80:20 dust panels, 100MF coir panels, 90:10 coir panels and 50:50 coir panels with 5 cm of initial thickness. Results showed that 100MF coir panel achieved αw of 0.90 coefficient and was rated as Class A absorber followed by 90:10 coir panels with αw of 0.85 coefficient and 100 EFB dust, 80:20 dust and 50:50 coir panels having αw of 0.80 coefficients and been rated as Class B absorber. This research has successfully defined that EFB and MF are viable to be used as raw fibre for acoustic absorber for building.
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Ryabov, Alexander, Evgeny Maslov, Dmitry Strelets, and Vladimir Slobodchikov. "Computational Analysis of Compressed Stiffened Composite Panels with Impact Damage." Aerospace 6, no. 3 (2019): 25. http://dx.doi.org/10.3390/aerospace6030025.
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A complex modeling technique is presented in this paper for a numerical analysis of compressed stiffened composite panels with impact damage. The numerical technique is based on the LS-Dyna code application, which simulates both the dynamic deformation of the panel subjected to a local impact and the quasi-static uniform compression of the panel within the local damage zone. The technique has been validated by both impact and compression experimental tests of the stiffened composite panel. The obtained numerical results show that impact damage to the composite panel can reduce the carrying capacity in more than 50% of damaged panels compared to undamaged panels.
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SUN, CHENGSHUO, KANG ZHOU, ZIRUI REN, YUTANG CHEN, and BIN NA. "STEAM-PRESSING MECHANISM OF LOW DENSITY MAGNESIA-BONDED WOOD-WOOL PANEL." Wood Research 67, no. 3 (2022): 437–46. http://dx.doi.org/10.37763/wr.1336-4561/67.3.437446.
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In this paper, wood-wool panel was prepared by steam pressing as opposed to the traditional cold-pressing and hot-pressing methods in order to eliminate the shortcomings of both methods. Cold pressed wood panels have low strength. The overall performance of heat pressed wood panel was poor. The water absorption of these two panels was too large. The steam pressing mechanism was studied by the means of X-ray diffraction and scanning electron microscope. The surface structure, moisture absorption and mechanical properties of wood-wool panel were investigated by experimental testing and numerical analysis. The surface structure of the wood-wool panel became stable, the moisture absorption was reduced, and the mechanical properties of the wood-wool panel were enhanced. The static bending strength of autoclaved wood-wool panel was 4% higher than that of cold-pressed wood-wool panel, and 7.4% higher than that of hot-pressed wood-wool panel. And the sound absorption coefficient increased by 6.3% and 5% respectively. The thermal conductivity was 2.4% lower than that of cold-pressed wood-wool panel.
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Ukida, Hiroyuki, and Masafumi Miwa. "LED Panel Detection and Pattern Discrimination Using UAV’s On-Board Camera for Autoflight Control." Journal of Robotics and Mechatronics 28, no. 3 (2016): 295–303. http://dx.doi.org/10.20965/jrm.2016.p0295.
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[abstFig src='/00280003/04.jpg' width=""250"" text='UAV autoflight control system using LED panels' ] The UAV flight control method we propose uses LED panels and a video camera on the UAV. Specifically, the LED panel displays patterns related to the UAV commands and blinking patterns for panel detection. A panel detection process based in UAV video camera images uses the frequency of green blinking as a cue for panel detection, then command patterns are distinguished and the UAV performs tasks based on this pattern (command). In experiments we performed for panel detection and discrimination using the UAV, we confirm the effectiveness of the proposed method for autoflight control.