Results 151 to 160 of about 4,345 (258)

EXPERIMENTAL STUDIES ON SOUND INSULATION PROPERTIES OF TRADITIONAL WOODEN HOUSES

Transactions of the Architectural Institute of Japan, 1984
MASAHITO YASUOKA, HIDEKI TACHIBANA, HIROSHI TANAKA, AKIHIRO TAMURA   +3 more
openaire   +2 more sources

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Acoustic and thermal insulation properties of rubberhemp shive composite bonded with regenerated polyurethane resin. [PDF]

Sci Rep
Astrauskas T, Balčiūnas G, Bradulienė J, Ružickij R, Naimušin A, Januševičius T.   +5 more
europepmc   +1 more source

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

High Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang, Shuqi Zhang, Yikun Zhao, Yichen Wang, Zongliang Zhang, Jinhua Zhang   +5 more
wiley   +1 more source

Sustainable Sound Absorption: A Critical Review of Material Innovation and Geometry-Driven Design. [PDF]

Polymers (Basel)
Tayari F, Silva R, Godinho B, Pinto P, Cardoso I, Brilhante T, Freitas V, Ribeiro R, Ferreira A, Gama N.   +9 more
europepmc   +1 more source

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

High Voltage, EarlyView.
ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning, Zuopeng Li, Mingxian Liu, Jianbo He, Tianxiang Chen, Shenli Jia   +5 more
wiley   +1 more source

Investigating the influence of expanded perlite and lime mud on cement-bonded composites containing pulp sludge. [PDF]

Sci Rep
Amiandamhen SO, Mai C, van Blokland J, Daniel G, Adamopoulos S.   +4 more
europepmc   +1 more source

Study on the Coupled Effects of High‐Speed Airflow and Charged Sand on Power‐Frequency Discharge Characteristics of Conductor–Tower Gaps in Strong Wind–Sand Environments

High Voltage, EarlyView.
ABSTRACT Strong wind–sand weather in Xinjiang threatens power grid safety by increasing transmission line tripping risks. Existing studies focus on sand polarization but neglect the coupled influence of high‐speed airflow and charged sand on gap discharge characteristics.
Jianghai Geng, Yang Wang, Ping Wang, Yang Lu, Songsong Zhou, Yujian Ding, Xiaojun Zhang, Wenbing Zhuang, Yu Su   +8 more
wiley   +1 more source

All-in-One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection. [PDF]

Adv Sci (Weinh)
Li H, Li Z, Yang J, Wu J, Chen Y, Wu L, Hu H, Gao P, Qu Y.   +8 more
europepmc   +1 more source

Experimental Study on Disintegration Characteristics of Water Droplets in Icicle‐Flat Plate Gap Beyond Critical Discharge Voltage

High Voltage, EarlyView.
ABSTRACT The disintegration behaviour of ice‐melting droplets aggravates the discharge risk of ice‐covered insulators and the disintegration characteristics of droplets at applied voltages exceeding the critical discharge voltage lack in‐depth study.
Lin Yang, Xinyang Gou, Xingkun Hu, Jiabao Ding, Yanpeng Hao, Licheng Li, Hao Li   +6 more
wiley   +1 more source