Results 21 to 30 of about 17,255 (252)

Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism

open access: yesInternational Journal of Mining Science and Technology
Effective monitoring of the structural health of combined coal-rock under complex geological conditions by pressure stimulated currents (PSCs) has great potential for the understanding of dynamic disasters in underground engineering. To reveal the effect
Tiancheng Shan   +9 more
doaj   +2 more sources

Correlation of Acoustic Emissions with Electrical Signals in the Vicinity of Fracture in Cement Mortars Subjected to Uniaxial Compressive Loading

open access: yesApplied Sciences, 2022
Acoustic emissions (AEs) and weak electrical signals, also known as pressure stimulated currents (PSCs), were concurrently recorded in order to investigate their behavior and detect precursory indicators when cement mortar specimens were subjected to ...
Andronikos Loukidis   +4 more
doaj   +1 more source

Pressure‐Stimulated Rock Current as Loading Diorite to Failure: Particular Variation and Holistic Mechanisms

open access: yesJournal of Geophysical Research: Solid Earth, 2022
Abstract The variations in the electric property of loaded rocks are essential in understanding the rock dynamics and fracturing process. Decades of laboratory experiments have revealed different behaviors of stress‐stimulated electric current due to the effects of rock types, loading modes, and detection methods.
Wenfei Mao   +6 more
openaire   +3 more sources

Thermoactivational spectroscopy of polyethylene polymer films with an ethylene-vinyl acetate copolymer

open access: yesPhysics of Complex Systems, 2023
The article reports the results of the study of polymer films based on the blend of high-pressure polyethylene (LDPE) and the ethylene-vinyl acetate copolymer (EVA, sevilen). The films were investigated with thermally stimulated depolarization.
Мансур Флоридович Галиханов   +3 more
doaj   +1 more source

Comparative assessment of the acoustic activity and the Pressure Stimulated Voltage in marble specimens under compression

open access: yesFracture and Structural Integrity
The temporal evolution of the electric activity generated in marble specimens under uniaxial compression is analyzed and quantified in terms of the Pressure Stimulated Voltage (Electric Potential) developed.
Stavros K. Kourkoulis   +3 more
doaj   +3 more sources

SuperKEKB vacuum system operation in the last 6 years operation

open access: yesPhysical Review Accelerators and Beams, 2023
The operation of the SuperKEKB has been ongoing since 2016. The vacuum systems of the main ring (MR) which consists of a 7-GeV electron ring (HER) and a 4-GeV positron ring (LER), the damping ring (DR) for 1.1 GeV positrons in the middle of the injector ...
Y. Suetsugu   +7 more
doaj   +1 more source

Characteristics of Pressure Stimulated Current and Damage Evolution of Granite under Progressive Uniaxial Loading

open access: yesSustainability, 2023
The application of load on rock materials stimulates a weak current known as Pressure Stimulated Current (PSC). This study focuses on investigating the damage evolution of granite rocks through the analysis of PSC responses. Uniaxial loading experiments were conducted on granite samples, and the accompanying PSC was measured in real-time.
Dexing Li   +6 more
openaire   +1 more source

Transcranial direct current stimulation modulates autonomic nervous system and reduces ambulatory blood pressure in hypertensives

open access: yesClinical and Experimental Hypertension, 2021
Purpose: Transcranial direct current stimulation (tDCS) seems to positively modulate the autonomic nervous system in different clinical conditions and healthy subjects; however, its effects on hypertensive (HTN) patients are not completely known. This study aimed to evaluate the effects of a tDCS or SHAM session (20 min) on blood pressure (BP) and ...
Bruno Rodrigues   +8 more
openaire   +3 more sources

Observation of pressure stimulated voltages in rocks using an electric potential sensor

open access: yes, 2009
Recent interest in the electrical activity in rock and the use of electric field transients as candidates for earthquake precursors has led to studies of pressure stimulated currents in laboratory samples.
H Prance (16059455)   +7 more
core   +2 more sources

Restoring stone monuments: Enlightening critical details by the combined use of innovative sensing techniques

open access: yesFracture and Structural Integrity, 2019
The experience gathered during the implementation of long series of laboratory experimental protocols, aiming to study the mechanical response of restored structural elements, is summarized.
Ermioni Pasiou
doaj   +3 more sources

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