Results 41 to 50 of about 4,886,512 (259)

Natural Fractures in Low-Permeability Sandstone Reservoirs in the LD-A HPHT Gas Field, Yinggehai Basin: Implications for Hydrocarbon Exploration and Development

Frontiers in Earth Science, 2022
Research on the characteristics and distribution of natural fractures is of great importance for the exploration and development of low-permeability sandstone gas reservoirs.
Hui Li, Hui Li, Caiwei Fan, Zhenxue Jiang, Zhenxue Jiang, Jun Li, Chao Li, Xuhui Xu, Xuhui Xu, Fang Li, Gaowei Hu   +10 more
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane, Salama Makni, Mourad Kchaou, Ahmed El Hajjaji   +3 more
wiley   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Recovery and Rehabilitation after Minor Fractures [PDF]

, 1979
This study had the aim of exploring patients' needs for rehabilitation and aftercare after 'minor' fractures. The study population consisted of 171 patients.
Lee, R.H.
core  

Combined pubic rami and sacral osteoporotic fractures: a prospective study [PDF]

, 2012
Background - Pelvic osteoporotic fractures (POFs) are often associated with considerable morbidity and mortality mainly as a result of infections and cardiovascular events.
Alnaib, Mustafa, A. St Clair Gibson, Kader, Deiary, N. Caplan, S. Jones, St Clair Gibson, Alan, S. Waters, M. Alnaib, Y. Shanshal, Waters, S., Jones, S., Shanshal, Yousif, Caplan, Nick, D. Kader   +13 more
core   +1 more source

Research on the Micromechanical Properties of Minerals and Their Interfaces in Fractured Shale Reservoirs

Energy Science & Engineering
The mechanical properties of shale are key parameters affecting shale reservoirs. They influence the gas content in the shale reservoirs, expansion of hydraulic fractures, and microscopic changes in the in‐situ stress.
Mengru Hou, Weiji Sun, Bing Liang, Jianfeng Hao, Qi Liu   +4 more
doaj   +1 more source

Propagation Characteristics of Multi-Cluster Hydraulic Fracturing in Shale Reservoirs with Natural Fractures

Applied Sciences
Hydraulic fracturing of gas and oil reservoirs is the primary stimulation method for enhancing production in the field of petroleum engineering. The hydraulic fracturing technology plays a crucial role in increasing shale gas production from shale ...
Lianzhi Yang, Xinyue Wang, Tong Niu
doaj   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Temporary brittle bone disease:association with intracranial bleeding [PDF]

, 2013
We report 20 infants aged between 1 month and 6 months found to have subdural bleeding and also multiple unexplained fractures in a pattern similar to that described earlier as temporary brittle bone disease. Child abuse seemed unlikely as a cause of the
Paterson, Colin R., Monk, Elizabeth
core   +1 more source

Data for: Interaction Between Hydraulic Fractures and Natural Fractures - A Review

, 2019
This data is associated with key findings and analysis of interactions between hydraulic fracture and natural fractures from 1963 to ...
Kolawole, O (via Mendeley Data)
core   +2 more sources