Results 31 to 40 of about 15,924,839 (382)

Application of Water Fracturing in Geothermal Energy Mining: Insights from Experimental Investigations

open access: yesEnergies, 2019
Currently, water fracturing under deep geothermal conditions remains poorly understood because the reservoir rocks are usually high-strength crystalline rocks characterized by high temperatures. The aim of this study is to investigate the effects of rock
Zhihong Lei   +6 more
doaj   +1 more source

Characteristics of the Multiple Injection Diesel Spray Employed Common Rail System

open access: yesJournal of Thermal Science and Technology, 2013
The multiple injection strategies have been widely employed in many new diesel applications, such as HCCI (Homogeneous Charge Compression Ignition) and LTC (Low Temperature Combustion), which are very effective in improving fuel-air mixture and ...
Zhiqiang ZHANG   +4 more
doaj   +1 more source

A Study on the Optimal Actuation Structure Design of a Direct Needle-Driven Piezo Injector for a CRDi Engine

open access: yesApplied Sciences, 2017
Recently, the high-pressure fuel injection performance of common-rail direct injection (CRDi) engines has become more important, due to the need to improve the multi-injection strategy.
Sangik Han, Juhwan Kim, Jinwook Lee
doaj   +1 more source

Hydraulic Interactions between Injection Events Using Multiple Injection Strategies and a Solenoid Diesel Injector

open access: yesEnergies, 2021
An experimental study was performed to explore the influence of dwell time on the hydraulic interactions between injection events using pilot injection strategy, split injection strategy, post injection strategy and a solenoid diesel injector.
Simón Martínez-Martínez   +4 more
doaj   +1 more source

Temporal Evolution of Split-Injected Fuel Spray at Elevated Chamber Pressures

open access: yesEnergies, 2019
For reducing soot and NOx emissions, an effective method is to apply split injection strategies. In this research, characteristics of split injection were investigated by applying the pilot-main injection strategy and main-post injection strategy.
Gang Wu, Xinyi Zhou, Tie Li
doaj   +1 more source

Interferon Clearance Rate Decreased after Repeated Injections

open access: yesJournal of General Virology, 1971
A rapid rate of clearance of circulating interferon has been observed in mice (Baron et al. 1966; Gresser et al. 1967; Subrahmanyan & Mims, 1966) and in rabbits (Ho & Postic, 1967) after a single injection of interferon. However, in a recent study (De Clercq, Nuwer & Merigan, 1970) the rate seemed to be slower after multiple intravenous injections of ...
M R, Nuwer, E, De Clercq, T C, Merigan
openaire   +2 more sources

Experimental investigation on water injected twin screw compressor for fuel cell humidification [PDF]

open access: yes, 2012
A water injection in Twin Screw compressors was examined in order to develop effective humidification and cooling schemes for fuel cell stacks as well as cooling for compressors. The temperature and the relative humidity of the air at suction and exhaust
Elvedin Mujic   +3 more
core   +1 more source

Analytical Study of Permeability Properties of Loose Sandstone Based on Thermal-Hydraulic-Mechanical (THM) Coupling

open access: yesEnergies
The permeability of reservoirs is a key factor affecting the exploitation and utilization of geothermal resources. This test used a core flow meter and other advanced experimental devices to investigate the evolution of the permeability characteristics ...
Rui Cui   +6 more
doaj   +1 more source

Injection Flow Rate Threshold Preventing Atypical In-Cavity Pressure during Low-Pressure Powder Injection Molding

open access: yesPowders, 2023
Controlling injection parameters is paramount when it comes to producing high-quality green parts using powder injection molding. This work combines experimental and numerical approaches to study the impact of injection parameters on mold in-cavity ...
Francis Arès   +2 more
doaj   +1 more source

Granular gases under extreme driving

open access: yes, 2010
We study inelastic gases in two dimensions using event-driven molecular dynamics simulations. Our focus is the nature of the stationary state attained by rare injection of large amounts of energy to balance the dissipation due to collisions. We find that
Brilliantov N.   +6 more
core   +1 more source

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