Results 21 to 30 of about 41,861 (162)

Real Talk: Designing Practice-Based Teacher Education for Family Communication

Education Sciences
Communication between families and schools is foundational for students’ academic success, community support for schools, and teachers’ experience. Yet, few preservice teacher education programs teach novices how to engage in equitable and effective ...
Lightning Peter Jay, Naorah Rimkunas
doaj   +1 more source

Enhancing the Output Performance of a Triboelectric Nanogenerator Based on Modified Polyimide and Sandwich-Structured Nanocomposite Film

Nanomaterials, 2023
Recently, scientists have been facing major obstacles in terms of improving the performances of dielectric materials for triboelectric nanogenerators. The triboelectric nanogenerator (TENG) is one of the first green energy technologies that can convert ...
Jiaheng Zhou, Chunhao Lu, Danquan Lan, Yiyi Zhang, Yiquan Lin, Lingyu Wan, Wenchang Wei, Yuwang Liang, Dongxin Guo, Yansong Liu, Wenyao Yu   +10 more
doaj   +1 more source

Simulation of Positive Cloud-to-ground Lightning Channel Morphological Characteristics Using a Stochastic Leader Model

应用气象学报
In recent years, with the advancement of lightning observation technologies, particularly the progress of high-speed photography and optical observation techniques, it has become possible to capture 2-dimensional morphological characteristics of ...
Mei Ji, Lü Weitao, Qi Qi, Wu Bin, Ma Ying, Liu Hengyi   +5 more
doaj   +1 more source

Gigantic jet discharges evolve stepwise through the middle atmosphere

Nature Communications, 2019
Gigantic jets, lightning discharges originating from tropical thunderstorms that can reach the base of the ionosphere at 90 km altitude, have not been captured using high-speed video cameras before.
Oscar A. van der Velde, Joan Montanyà, Jesús A. López, Steven A. Cummer   +3 more
doaj   +1 more source

Application of Markov Model to Estimate Individual Condition Parameters for Transformers

Energies, 2018
This paper presents a study to estimate individual condition parameters of the transformer population based on Markov Model (MM). The condition parameters under study were hydrogen (H2), methane (CH4), acetylene (C2H2), ethylene (C2H4), ethane (C2H6 ...
Amran Mohd Selva, Norhafiz Azis, Muhammad Sharil Yahaya, Mohd Zainal Abidin Ab Kadir, Jasronita Jasni, Young Zaidey Yang Ghazali, Mohd Aizam Talib   +6 more
doaj   +1 more source

Observation of the Whole Discharge Process During a Multi-stroke Triggered Lightning by Continuous Interferometer

应用气象学报, 2020
The discharge process is often discussed in the lightning physics. VHF (very high frequency) observations play an important role in studying lightning discharge processes, because they show where air breakdown occurs.
Zhang Yang, Chen Zefang, Wang Jingxuan, Fan Yanfeng, Zheng Dong, Lü Weitao, Zhang Yijun   +6 more
doaj   +1 more source

Two-dimensional Optical Observation of Striking Distance of Lightning Flashes to Two Buildings in Guangzhou

应用气象学报, 2020
Lightning can strike directly on buildings, lightning protection devices or the lateral surface of buildings, endangering buildings on the ground. Effective lightning protection measures can avoid lightning damage to buildings and prevent possible fire ...
Qi Qi, Lü Weitao, Wu Bin, Ma Ying, Chen Lüwen, Jiang Ruijiao   +5 more
doaj   +1 more source

The Lightning Model

Journal of Theoretical Probability, 2021
To appear: J.
James T. Campbell, A. Deane, A. Quas
openaire   +3 more sources

Statistics and variability of the altitude of elves

Geophysical Research Letters, 2016
From June 2008 to January 2016 nearly 800 elves have been recorded by a low‐light camera in northeastern Spain. Elves occur in this region mainly over the lower topped cold air mass maritime thunderstorms, peaking from November to January.
Oscar A. van derVelde, Joan Montanyà
doaj   +1 more source

A Comprehensive Review on Optimal Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction, Voltage Stability Improvement, Voltage Profile Enhancement and Loadability Enhancement

IEEE Access, 2020
With the modernization of power grids, the network optimal utilization is essential to ensure that voltage profile at each bus is maintained within an acceptable range, voltage stability of the system is enhanced, power losses in lines are minimized ...
Bazilah Ismail, Noor Izzri Abdul Wahab, Mohammad Lutfi Othman, Mohd Amran Mohd Radzi, Kanendra Naidu Vijyakumar, Muhammad Najwan Mat Naain   +5 more
doaj   +1 more source