Results 101 to 110 of about 56,338 (317)

Updating Grasselli's 2D morphology parameter for estimating JRC of rock joints

Yantu gongcheng xuebao
The Grasselli's 2D morphology parameter θG used to estimate the joint roughness coefficient (JRC) is questionable, because it only considers the apparent inclination of the shear side and ignores the internal undulation angle.
HONG Chenjie 1, WENG Hanqian 1, WANG Kai 2, 3, HUANG Man 2, 3, TAO Zhigang 1, DU Shigui 4
doaj   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

A Fractal Topology-Based Method for Joint Roughness Coefficient Calculation and Its Application to Coal Rock Surfaces

Modelling
The accurate evaluation of the Joint Roughness Coefficient (JRC) is crucial for rock mechanics engineering. Existing JRC prediction models based on a single fractal parameter often face limitations in physical consistency and predictive accuracy.
Rui Wang, Jiabin Dong, Wenhao Dong
doaj   +1 more source

JRC Postcard

JRC Postcard with QR code to Science HubJRC.01 ...
JAMES Kathleen
core   +1 more source

Antimicrobial resistance: Crowdsourcing JRC Knowledge on AMR, AMR@JRC Café, 24 October 2023 [PDF]

Antimicrobial Resistance (AMR) represents a serious global health threat, which was directly responsible for almost 1.2 million deaths worldwide in 2021 and contributed to another 4.7 million deaths the same year. It is estimated that there could be over
VINCENT Ursula, SALARI Paola, SCACCABAROZZI Diletta, NAVARRO CUENCA Anna, WIESENTHAL Tobias, KOEBER Robert, MARCHINI Antonio, GOMEZ CORTES Livia, CALZOLAI Luigi, ORGIAZZI Alberto, NICHOLL Ciaran, KEPHALOPOULOS Stylianos, MARIANI Giulio, LOOS Robert, QUERCI Maddalena, CARVALHO Raquel, LETTIERI Teresa, SANSEVERINO Isabella, SIMONEAU Catherine, POLJANSEK Karmen, MARINOV Dimitar, TAVAZZI Simona, COMERO Sara, BIERLAIRE Philippe, SPAGNOLO Luigi, COECKE Sandra, SALA Serenella, VERNETTI Christine, TOUSSAINT Brigitte, BERNASCONI Camilla, MAFFETTONE Roberta, PORCEL RODRIGUEZ Elena, MARTINSOHN Jann, SAUER Aisha, PETRILLO Mauro, RUIZ MORENO Ana, GAWLIK Bernd Manfred, RAFFAEL Barbara, PARACCHINI Valentina, CORBISIER Philippe, MUNOZ PINEIRO Amalia, DE GROEVE Tom, TADIC Dorde   +42 more
core   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

Deep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Joint Radar and Communications: Architectures, Use Cases, Aspects of Radio Access, Signal Processing, and Hardware

IEEE Access
Joint Radar and Communications (JRC) can satisfy the apparent demand for applications based on object detection, tracking, ranging, and positioning. JRC is, therefore, often seen as candidate technology for 6G mobile systems.
Victor Shatov, Benjamin Nuss, Steffen Schieler, Pradyumna Kumar Bishoyi, Lara Wimmer, Maximilian Lubke, Navid Keshtiarast, Christoph Fischer, Daniel Lindenschmitt, Benedikt Geiger, Reiner Thoma, Amina Fellan, Laurent Schmalen, Marina Petrova, Hans D. Schotten, Norman Franchi   +15 more
doaj   +1 more source

JRC Nuclear News 3 [PDF]

'JRC Nuclear News' Newsletter - Volume 3 (February 2025)JRC.02 - Euratom ...
JERRIGE Laurent, LUDKE Louise, GOULART Margarida, TANARRO COLODRON Jorge, AREGBE Yetunde, ENGELMANN Ulla, GALY Jean, MAGENHANN Bernard, MAY Fanny, DAURES Pascal, CIRILLO Roberta, TAMBORINI Gabriele, PANAGOPOULOS Thomas, MARABEAU Gwladys   +13 more
core  

JRC Scientific Traineeship [PDF]

Leaflet with a short presentation of the JRC Scientific Traineeship scheme and its pojects and activities.JRC.02 - Euratom ...
PANAGOPOULOS Thomas, CAGNOLI Federica, BEVINI Martina, FRANCK Eva, MELINDO Gabriele   +4 more
core   +1 more source