Results 11 to 20 of about 261,021 (287)

Numerical Simulation Research on the Interactive Propagation of Hydraulic Fractures and Natural Fractures [PDF]

open access: yesE3S Web of Conferences, 2021
In order to study the fracture propagation behavior after the interaction between hydraulic fractures and natural fractures, the cohensive unit of Abaqus finite element software is used to simulate the influence of natural fractures in the rock on the ...
Asiri Waleed Abdullah I, Xiaoming Ma
doaj   +1 more source

Overuse Injuries in Teenagers

open access: yesJournal of the Belgian Society of Radiology, 2021
Overuse injuries in teenagers have increased in incidence in the past decades. Adequately diagnosing these injuries is a challenge ('Figures 1' and '2'), especially when unfamiliar with the specific overuse injury patterns and the development steps of ...
Frank Smithuis, Mario Maas
doaj   +1 more source

Approach to Stress Fractures: Report of Three Cases and Review of Literature

open access: yesTürk Osteoporoz Dergisi, 2021
Stress fractures occur following repetitive and mechanical overloading of the bones. Two known subtypes are fatigue fractures and insufficiency fractures. Generally, pain in the affected bone increases with activity and decreases with rest.
Zeynep Tuba Bahtiyarca   +3 more
doaj   +1 more source

Short-Term Combined Intake of Vitamin B2 and Vitamin E Decreases Plasma Homocysteine Concentrations in Female Track Athletes

open access: yesDietetics, 2022
Female athletes who endure physical strain on the same bone area are prone to stress fractures. Preventing these improves their quality of life. Blood vitamin B2 (V.B2) and E (V.E) levels influence blood homocysteine (Hcy) levels, which, when elevated ...
Akiho Shinagawa   +6 more
doaj   +1 more source

Long-term results of medical treatment for lower extremity stress fractures

open access: yesНаучно-практическая ревматология, 2020
Objective: to assess the long-term results of medical treatment for lower extremity stress fractures.Subjects and methods. Fifty-five patients who had received a medical treatment cycle in the European Clinic of Sports Traumatology and Orthopedics (ECSTO)
M. S. Ryazantsev   +8 more
doaj   +1 more source

Simulation of subseismic joint and fault networks using a heuristic mechanical model [PDF]

open access: yes, 2017
Flow simulations of fractured and faulted reservoirs require representation of subseismic structures about which subsurface data are limited. We describe a method for simulating fracture growth that is mechanically based but heuristic, allowing for ...
Casini, G   +3 more
core   +1 more source

Characterizing Natural Fractures and Their Interactions with Hydraulically Induced Fractures [PDF]

open access: yes, 2018
Natural fractures are preexisting micro-cracks and fissures that can have a critical impact on hydraulic fracture treatments in shales. Most shale formations contain natural fractures, but the characteristics of these natural fractures can vary ...
Amandes, Charlotte
core   +2 more sources

Current concept of stress fractures with an additional category of atypical fractures: a perspective review with representative images

open access: yesTherapeutic Advances in Endocrinology and Metabolism, 2021
Stress fractures have traditionally been classified into three categories: fatigue fractures due to overuse of bone with normal elastic resistance; insufficiency fractures due to everyday physiological stress on fragile bone with poor elastic resistance;
Yoto Oh   +4 more
doaj   +1 more source

Post-injection normal closure of fractures as a mechanism for induced seismicity [PDF]

open access: yes, 2017
Understanding the controlling mechanisms underlying injection-induced seismicity is important for optimizing reservoir productivity and addressing seismicity-related concerns related to hydraulic stimulation in Enhanced Geothermal Systems.
E. Keilegavlen   +5 more
core   +2 more sources

Simulating spatial and temporal evolution of multiple wing cracks around faults in crystalline basement rocks [PDF]

open access: yes, 2007
Fault zones are structurally highly spatially heterogeneous and hence extremely complex. Observations of fluid flow through fault zones over several scales show that this structural complexity is reflected in the hydrogeological properties of faults ...
Anderson   +39 more
core   +1 more source

Home - About - Disclaimer - Privacy