A Low-Cost Test Platform for Performance Analysis of Phasor Measurement Units by Antonijo Kunac, Goran Petrović, Marin Despalatović, Marko Jurčević

“…In this paper, a customizable low-cost voltage waveform generator based on a real-time desktop PC and embedded data acquisition card synchronized with Coordinated Universal Time (UTC) is presented. A software approach to phase-locked loop synchronization with an external Global Positioning System (GPS) pulse signal is utilized to achieve a time uncertainty of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mn>1</mn><mspace width="4pt"></mspace><mi mathvariant="sans-serif">μ</mi></mrow></semantics></math></inline-formula>s. …”
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Data-Driven Hyperparameter Optimized Extreme Gradient Boosting Machine Learning Model for Solar Radiation Forecasting by Kumari Namrata, Mantosh Kumar, Nishant Kumar

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Design and operation of a 1500-m laser strainmeter installed at an underground site in Kamioka, Japan by Akito Araya, Akiteru Takamori, Wataru Morii, Kouseki Miyo, Masatake Ohashi, Kazuhiro Hayama, Takashi Uchiyama, Shinji Miyoki, Yoshio Saito

“…Graphical Abstract A 1500-m laser strainmeter constructed at an underground site in Kamioka (left), calculated and observed earth tides (top right), and seismic waveform of an earthquake (Fukushima, Mw 6.9) occurred at 20:59:49 (UTC) on Nov. 21, 2016 (bottom right).…”
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PRODUCTION OF ISO-INTENSITY MAP FOR THE ELAZIG EARTHQUAKE (JAN 24, 2020) USING CITIZEN COLLECTED GEODATA by I. Yalcin, I. Yalcin, S. Kocaman, C. Gokceoglu

“…The present study was based on the 6.8 Mw Elazig earthquake occurred at 20:55 UTC on January 24th, 2020. Through the mobile application “I felt the quake”, the observations of citizens regarding the earthquake were collected. …”
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Improving the Near-Surface Wind Forecast around the Turpan Basin of the Northwest China by Using the WRF_TopoWind Model by Hui Ma, Xiaolei Ma, Shengwei Mei, Fei Wang, Yanwei Jing

“…Based on three groups (each group had 28 runs) of forecasts (i.e., Control run, Test 01 and Test 02) started at 12:00 UTC of each day (ran for 48 h) during the period of 1–28 October 2020, it was shown that, overall, both TopoWind models could improve the near-surface wind speed forecasts under the complex terrain conditions over Northwest China, particularly for reducing the errors associated with the forecast of the wind-speed’s magnitude. …”
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Long-Term Assessment of Reference Baselines for the Determination of the Crop Water Stress Index in Maize under Mediterranean Conditions by Alejandro Prior, Orly Enrique Apolo-Apolo, Pedro Castro-Valdecantos, Manuel Pérez-Ruiz, Gregorio Egea

“…The determined reference baselines for computing CWSI in maize have shown to be stable in the long term but markedly influenced by the meteorological variations between 10–17 h UTC (Coordinated Universal Time). These results indicate that several reference baselines should be used for CWSI computing throughout the abovementioned time interval. …”
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Modeling and Robust Control of a Grid Connected Direct Driven PMSG Wind Turbine By ADRC by Imad Aboudrar, Soumia El Hani, Hamza Mediouni, Ahmed Aghmadi

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Using Daylight Saving Time Clock Changes to Study the Impact of Meteorology on Air Pollution by Yuval, Yoav Levi, David M. Broday

“…The DST switch in the official time abruptly shifts anthropogenic emissions that are related to human activities relative to the Coordinated Universal Time (UTC) but does not affect meteorological processes that disperse them, which day-to-day variability is affected by longer time scales. …”
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The Impacts of Distance between Phosphor Layers on Optical Properties of Triple-Layer Phosphor Structure by Phan Xuan Le, Duc Lam Pham, Hoang Nam Nguyen, Nguyen Doan Quoc Anh

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Non-Invasive Fiber-Optic Biomedical Sensor for Basic Vital Sign Monitoring by Jan Nedoma, Marcel Fajkus, Radek Martinek, Vladimir Vasinek

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River ice flux and water velocities along a 600 km-long reach of Lena River, Siberia, from satellite stereo by A. Kääb, M. Lamare, M. Abrams

“…Maximum ice or water speeds, respectively, reach up to 2.5 m s⁻¹ at the time of data acquisition, 27 May 2011 (03:30 UTC). Speeds show clear along-stream undulations with a wavelength of about 21 km that agree well with variations in channel width and with the location of sand bars along the river reach studied. …”
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Ambient non-methane hydrocarbons and their contribution to ozone formation potential in a super coal chemical industry in China’s Energy Golden Triangle by Jinxiang Wang, Jinxiang Wang, Jianmin Ma, Jianmin Ma, Panliang Liu

“…Ambient air samples were collected using pre-evacuated 2-L electro-polished stainless steel canisters at SH and BF from 9:00 a.m. to 9:30 a.m. (UTC+8) from 22 to 31 December 2016. Fifty-seven NMHCs were analyzed using gas chromatography-mass selective detector/flame ionization detector. …”
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Mobile Computing Technologies for Health and Mobility Assessment: Research Design and Results of the Timed Up and Go Test in Older Adults by Vasco Ponciano, Ivan Miguel Pires, Fernando Reinaldo Ribeiro, María Vanessa Villasana, Rute Crisóstomo, Maria Canavarro Teixeira, Eftim Zdravevski

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Flexible Ultra-Wide Electro-Optic Frequency Combs for a High-Capacity Tunable 5G+ Millimeter-Wave Frequency Synthesizer by Li Liu, Yangguang Liu, Xiao-Zhi Gao, Xiaomin Zhang

“…The architecture for the quasi-tunable millimeter-wave frequency synthesizer mainly consists of a compact ultra-wide flat electro-optic frequency comb and a multi-tone frequency generator, which only includes a quantum dot mode-locked laser, a LiNbO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> dual-driving Mach–Zehnder modulator (DD-MZM) and Uni-traveling-carrier photodiode (UTC-PD). MMW signals generated with a quasi-tunable frequency are experimentally demonstrated. …”
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Optimization of the Position of Single-Lead Wireless Sensor with Low Electrodes Separation Distance for ECG-Derived Respiration by Helena Svobodova, Erik Vavrinsky, Daniela Turonova, Martin Donoval, Martin Daricek, Peter Telek, Martin Kopani

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Electronically and Independently Controllable Quadrature Sinusoidal Oscillator with Low Output Impedances by Adisorn Kwawsibsam, Danupat Duangmalai, Sittisak Yeeyoun, Winai Jaikla

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Systemic Induction of the Defensin and Phytoalexin Pisatin Pathways in Pea (Pisum sativum) against Aphanomyces euteiches by Acetylated and Nonacetylated Oligogalacturonides by Sameh Selim, Jean Sanssené, Stéphanie Rossard, Josiane Courtois

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Applications of the Advanced Radiative Transfer Modeling System (ARMS) to Characterize the Performance of Fengyun–4A/AGRI by Fei Tang, Xiaoyong Zhuge, Mingjian Zeng, Xin Li, Peiming Dong, Yang Han

“…The AGRI data are quality controlled to eliminate the observations affected by clouds and contaminated by stray lights during the mid–night from 1600 to 1800 UTC during spring and autumn. The mean biases, computed from AGRI IR observations and ARMS simulations from the National Center for Environmental Prediction (NCEP) Final analysis data (FNL) as input, are within −0.7–1.1 K (0.12–0.75 K) for all seven IR bands over the oceans (land) under clear–sky conditions. …”
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The source detection of 28 September 2018 Sulawesi tsunami by using ionospheric GNSS total electron content disturbance by Jann-Yenq Liu, Chi-Yen Lin, Yuh-Ing Chen, Tso-Ren Wu, Meng-Ju Chung, Tien-Chi Liu, Yu-Lin Tsai, Loren C. Chang, Chi-Kuang Chao, Dimitar Ouzounov, Katsumi Hattori

“…Abstract The 28 September 2018 magnitude Mw7.8 Palu, Indonesia earthquake (0.178° S, 119.840° E, depth 13 km) occurred at 10:02 UTC. The major earthquake triggered catastrophic liquefaction, landslides, and a near-field tsunami. …”
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Biomaterials recycling: a promising pathway to sustainability by Paulina Wiśniewska, Paulina Wiśniewska, Mohammad Reza Saeb, Mohammad Reza Saeb, Sidi A. Bencherif, Sidi A. Bencherif, Sidi A. Bencherif, Sidi A. Bencherif

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