Results 11 to 20 of about 7,920 (224)

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

Thunderstorm Feature Dataset and Characteristics of Thunderstorm Activities in China

应用气象学报, 2021
A thunderstorm feature dataset (TFD) is built up based on the black body temperature (TBB) product and cloud classification (CLC) product of FY-2E meteorological satellite as well as the lightning data of the World-Wide Lightning Location Network (WWLLN).
Ma Ruiyang, Zheng Dong, Yao Wen, Zhang Wenjuan   +3 more
doaj   +1 more source

Risk zoning of lightning disaster in Hubei Province based on projection pursuit method

暴雨灾害, 2019
Using the cloud-ground lightning locating data from 2007 to 2017 and the thunderstorm day data from 1961 to 2003 in Hubei, we selected six lightning parameters such as thunderstorm day, cloud-ground lightning density, lightning current wave-head ...
Tianye YU, Xueliang WANG, Haifeng YUAN, Chuanlin ZHU   +3 more
doaj   +1 more source

Study of the B-Dot Sensor for Aircraft Surface Current Measurement

Sensors, 2022
The B-dot sensor is a type of Rogowski coil widely used in the measurement of current. However, the accuracy of the B-dot for measuring aircraft high-frequency lightning current is greatly affected by factors such as numerical integration drift, high ...
Chen Tong, Zemin Duan, Yeyuan Huang, Shanliang Qiu, Xiaoliang Si, Zhibao Li, Zhijie Yuan   +6 more
doaj   +1 more source

A Maintenance Cost Study of Transformers Based on Markov Model Utilizing Frequency of Transition Approach

Energies, 2018
In this paper, a maintenance cost study of transformers based on the Markov Model (MM) utilizing the Health Index (HI) is presented. In total, 120 distribution transformers of oil type (33/11 kV and 30 MVA) are examined.
Muhammad Sharil Yahaya, Norhafiz Azis, Amran Mohd Selva, Mohd Zainal Abidin Ab Kadir, Jasronita Jasni, Emran Jawad Kadim, Mohd Hendra Hairi, Young Zaidey Yang Ghazali   +7 more
doaj   +1 more source

Project Management of Lightning Protection Innovative Design [PDF]

E3S Web of Conferences, 2021
Lightning protection is becoming more and more important because the climate has changed in recent years and lightning occurs frequently. Given the lightning accidents in these years, this study adopted a new lightning protection device, increased ...
Ling Kang
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

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

A Simplified Top-Oil Temperature Model for Transformers Based on the Pathway of Energy Transfer Concept and the Thermal-Electrical Analogy

Energies, 2017
This paper presents an alternative approach to determine the simplified top-oil temperature (TOT) based on the pathway of energy transfer and thermal-electrical analogy concepts.
Muhammad Hakirin Roslan, Norhafiz Azis, Mohd Zainal Abidin Ab Kadir, Jasronita Jasni, Zulkifli Ibrahim, Azalan Ahmad   +5 more
doaj   +1 more source