Results 191 to 200 of about 75,965 (289)

Breakdown and Discharge Characteristics of High Repetition Frequency Nanosecond Pulsed Air Dielectric Barrier Discharge

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study explores the breakdown characteristics and discharge modes in a parallel plate air dielectric barrier discharge system using repetitive nanosecond pulses, with pulse repetition frequencies (PRFs) from 0.1 to 100 kHz. It examines how pulse parameters—PRF, pulse number and gas pressure—affect the memory effect, leveraging current and ...
Mahreen   +3 more
wiley   +1 more source

Combustion Performance of Silicone Rubber Polymer Insulation Material Under Damp‐Heat Ageing Conditions: Molecular Insights Into the Effects of Structural Changes on Macroscopic Properties

open access: yesHigh Voltage, EarlyView.
ABSTRACT Silicone rubber (SR), an organic silicon polymer material, is known for its excellent heat resistance and mechanical properties. It is widely used in composite insulators and cable accessory materials. However, the ageing caused by humidity and heat significantly impacts its performance, an issue that cannot be ignored. This paper investigates
Wenyu Ye   +6 more
wiley   +1 more source

Day‐Ahead Optimal Scheduling of Integrated Energy Systems Considering Diversified Hydrogen Utilisation

open access: yesIET Smart Energy Systems, EarlyView.
Integrated energy systems (IES) facilitate multi‐energy complementarity and efficient energy utilization. This study focuses on an IES with electricity, heating, cooling, and hydrogen loads, the proposed method can achieve a balance between system energy consumption, carbon emissions, and operational economy.
Hua Xie   +5 more
wiley   +1 more source

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

open access: yesArchaeometry, EarlyView.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori   +10 more
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy