Results 11 to 20 of about 15,924,839 (382)

Near Wellbore Hydraulic Fracture Propagation from Perforations in Tight Rocks: The Roles of Fracturing Fluid Viscosity and Injection Rate

Energies, 2017
Hydraulic fracture initiation and near wellbore propagation is governed by complex failure mechanisms, especially in cased perforated wellbores. Various parameters affect such mechanisms, including fracturing fluid viscosity and injection rate.
Seyed Hassan Fallahzadeh, Md Mofazzal Hossain, Ashton James Cornwell, Vamegh Rasouli   +3 more
doaj   +2 more sources

Posterior vitreous detachment rate following intravitreal dexamethasone injection [PDF]

International Journal of Ophthalmology, 2019
AIM: To determine whether intravitreal dexamethasone (DEX) implant induces posterior vitreous detachment or not. METHODS: We retrospectively reviewed 810 eyes of 405 patients who underwent intravitreal DEX implantation due to macular edema caused by ...
Atilla Alpay
doaj   +4 more sources

Evaluation of the impact of viscosity, injection volume, and injection flow rate on subcutaneous injection tolerance

Medical Devices: Evidence and Research, 2015
Cecile Berteau,1 Orchidée Filipe-Santos,1 Tao Wang,2 Humberto E Rojas,2 Corinne Granger,1 Florence Schwarzenbach1 1Becton-Dickinson Medical Pharmaceutical Systems, Le Pont de Claix, France; 2Eli Lilly and Company, Indianapolis, IN, USA Aim: The ...
Berteau C, Filipe-Santos O, Wang T, Rojas HE, Granger C, Schwarzenbach F   +5 more
doaj   +4 more sources

Effects of Injection Rate Profile on Combustion Process and Emissions in a Diesel Engine

Journal of Combustion, 2017
When multi-injection is implemented in diesel engine via high pressure common rail injection system, changed interval between injection pulses can induce variation of injection rate profile for sequential injection pulse, though other control parameters ...
Fuqiang Bai, Zuowei Zhang, Yongchen Du, Fan Zhang, Zhijun Peng   +4 more
doaj   +2 more sources

Probabilistic Forecasting of Hydraulic Fracturing-Induced Seismicity Using an Injection-Rate Driven ETAS Model

Seismological Research Letters, 2021
The development of robust forecasts of human-induced seismicity is highly desirable to mitigate the effects of disturbing or damaging earthquakes. We assess the performance of a well-established statistical model, the epidemic-type aftershock sequence (
S. Mancini, M. Werner, M. Segou, B. Baptie   +3 more
semanticscholar   +1 more source

Exploring the propagation of hydraulic fracture with nonuniform stress based on the block distinct element method

Energy Science & Engineering, 2023
The stress field is a critical factor for fracture propagation in hydraulic fracturing. Attention should be paid to fracture propagation with the nonuniform stress field.
Baoshan Jia, Hongye Gao, Yun Lei, Yongxiang Zheng, Wei Wang   +4 more
doaj   +1 more source

Modeling the initiation of others into injection drug use, using data from 2,500 injectors surveyed in Scotland during 2008-2009 [PDF]

, 2015
The prevalence of injection drug use has been of especial interest for assessment of the impact of blood-borne viruses. However, the incidence of injection drug use has been underresearched.
Aceijas, Avril Taylor, Bird, Burns, Day, De Angelis, Doherty, Esposito, Gore, Gore, Gore, Griffiths, Hay, Hickman, Hunt, Hunt, Hunt, Hutchinson, Hutchinson, Hutchinson, Kaplan, Kermode, Kimber, King, Law, Nelson, Overstall, R Development Core Team, Razali, Shah, Sharon J. Hutchinson, Sheila M. Bird, Simon R. White, Surveys, Design and Statistics Subcommittee of Home Office Scientific Advisory Committee, Sweeting, Taylor, Uusküla, Valdez   +37 more
core   +4 more sources

Relating Dike Geometry and Injection Rate in Analogue Flux-Driven Experiments

Frontiers in Earth Science, 2021
Dikes feed most eruptions, so understanding their mechanism of propagation is fundamental for volcanic hazard assessment. The variation in geometry of a propagating dike as a function of the injection rate remains poorly studied.
Federico Galetto, Federico Galetto, Alessandro Bonaccorso, Valerio Acocella   +3 more
doaj   +1 more source

Polymer flooding effect of seepage characteristics of the second tertiary combined model of L oilfield block B

Journal of Hebei University of Science and Technology, 2015
The second tertiary combined model is applied to develop the second and third type reservoirs which have more oil layer quantity and strong anisotropism, compared to the regular main reservoir with polymer injection, whose seepage characteristics of ...
Huan ZHAO, Hongjun YIN, Hong LIU, Zhitao XU   +3 more
doaj   +1 more source

A Comparison of the Injection Rate of Local Anesthetic during Spinal Anesthesia on the Onset of Sensory Block and Incidence of Hypotension in Caesarean Section

Clinical and Experimental Obstetrics & Gynecology, 2022
Objective: The injection rate of the local anesthetic may affect the level and the time of onset of sensory block. The aim of this prospective study was to investigate the effects of two different injection rates of local anesthetic solution (0.5% heavy ...
Ersagun Tugcugil, Ahmet Besir
doaj   +1 more source