نتایج جستجو برای: fluid injection optimization

تعداد نتایج: 683230  

Journal: :Geophysical Research Letters 2023

Microseismicity associated with fluid pressurization in the subsurface occurs during injection but can also be triggered after shut-in. Understanding extent and duration of post-injection microseismicity is critical to limit risk fluid-induced seismicity insure safe utilization subsurface. Using theoretical numerical techniques, we investigated how aseismic slip on a fault plane evolves stops e...

A. Yazdian, H. Seifi, R. Keypour,

In this paper, two algorithms have been developed for allocation and size determination of Active Power Filters (APF) in power systems. In the first algorithm, the objective is to minimize harmonic voltage distortion. The objective in the second algorithm is to minimize the new APF injection currents while satisfying harmonic standards. Genetic algorithm is proposed for these two optimization p...

A. Yazdian, H. Seifi, R. Keypour,

In this paper, two algorithms have been developed for allocation and size determination of Active Power Filters (APF) in power systems. In the first algorithm, the objective is to minimize harmonic voltage distortion. The objective in the second algorithm is to minimize the new APF injection currents while satisfying harmonic standards. Genetic algorithm is proposed for these two optimization p...

Pulsatile motion of blood in a circular tube of varying cross-section has been developed by considering slip flow at the tube wall and the blood to be a non- Newtonian biviscous incompressible fluid. The tube wall is supposed to be permeable and the fluid exchange across the wall is accounted for by prescribing the normal velocity of the fluid at the tube wall. The tangential velocity of the fl...

2008
D. Wu

A synthetic jet is formed as a consequence of a periodic – say sinusoidal – expulsion and extraction of fluid through an orifice, so that the time-averaged flow rate through the orifice is zero. Despite the zero mean mass flux, the sequence of injection followed by suction results in net momentum and vorticity being released into the fluid body in which the jet is generated. This is, essentiall...

2010
Richard A. Krahenbuhl Yaoguo Li Tom Davis

In this paper, we present a multi-faceted feasibility study for monitoring fluid movement in a reservoir at various injection times using 4D micro-gravity method. Simulations are performed using a representation of the Delhi Field, LA, constructed by directly integrating seismic and well data. We then analyze anomaly amplitudes and inversion performance with respect to data noise. Results demon...

Journal: :Physiology & behavior 1991
J C Doerr M B Kristal

Ingestion of placenta and amniotic fluid has been shown to enhance opioid-mediated analgesia in rats produced by morphine injection, footshock, vaginal/cervical stimulation, and during late pregnancy. The present study was designed to investigate the effects of amniotic fluid ingestion on the characteristics of morphine dependency and withdrawal. Tail-flick latencies in Long-Evans rats were det...

2011
Daniele Tognetto Eirini Skiadaresi Paolo Cecchini Giuseppe Ravalico

We describe three cases of submacular hemorrhage that occurred two to four days after anti-VEGF intravitreal injection for occult choroidal neovascularisation in age-related macular degeneration and their management with 25 gauge pars plana vitrectomy with injection of subretinal recombinant tissue plasminogen activator (rTPA) followed by fluid-air exchange and postoperative prone position. Vit...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
محسن نظری اسماعیل شاکری نژاد محمدحسن کیهانی

natural convection heat transfer from a vertical heated plate in a saturated porous medium is analyzed under thermal non-equilibrium assumptions. the plate is maintained at a non uniform temperature and the fluid is considered to be with internal heat generation. the coupled momentum and energy equations for fluid and solid phases are transformed to a similarity format, and solved numerically. ...

2010
Irene Ferreira Olivier de Weck Pedro Saraiva José Cabral

The design of injection molding systems for plastic parts relies heavily on experience and intuition. Recently, mold makers have been compelled to shorten lead times, reduce costs and improve process performance due to global competition. This paper presents a framework, based on a Multidisciplinary Design Optimization (MDO) methodology, which tackles the design of an injection mold by integrat...

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