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Effects of contrast medium injection pressure on angiographic image quality [PDF]
Frontiers in RadiologyRationale and objectivesTo evaluate if higher contrast medium injection pressure can improve image quality of digital subtraction angiography (DSA) in liver-directed interventions.Materials and methodsProspective single-center study including twelve ...
Sara A. Abosabie +25 more
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Experimental Investigation of the Effect of Pilot Fuel Injection Pressure and Start of Injection on Combustion and Emission of RCCI Engine fueled with Diesel-CNG [PDF]
مهندسی مکانیک شریف, 2021 The main feature of RCCI is the significant reduction of nitrogen oxides and soot pollutants as efficiency and fuel consumption decrease. The aim of this study was to investigate the effects of the start of diesel fuel injection and injection pressure ...
S. Ghaffarzadeh +2 more
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Applied Sciences, 2022 Palm oil is one of the most common and productive vegetable oils, so it is often used as an excellent feedstock for biodiesel production. However, due to the high viscosity and other issues of palm oil, it cannot be directly used as an alternative fuel ...
Guirong Wu +3 more
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About Gas Permeability and Diffusion through Concrete
Materials Proceedings, 2023 Gas production is expected in radioactive-waste storage structures. This will induce a slow increase in gas pressure, which necessitates the study of gas transfer at a low pressure. In this special case, calculations of the flow through storing materials
Takwa Lamouchi +4 more
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Frontiers in Energy Research, 2023 Matching characteristics between fuel injection and intake control parameters significantly affect overall performances in diesel engine at variable altitudes. Prior to optimizing the control parameters of diesel engines operating at high altitudes areas,
Mingding Wan +3 more
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Energy Science & Engineering, 2020 The purpose of this study is to investigate the effects of fuel temperature and nozzle length‐diameter ratio (L/D) on biodiesel spray characteristics, under high injection pressure and high ambient pressure, by numerical method.
Limin Geng +4 more
doaj +1 more source
The Influence of Injection Timing on Combustion and Emission Characteristics of HSDI Diesel Engine [PDF]
Engineering and Technology Journal, 2014 An attempt has been made to study the combustion and emission characteristics of ultra-low diesel fuel for high speed direct injection ( HSDI) diesel engine at different fuel injection timings( -12,-9,-6,-3,0 )ATDC .
Hayder A. Dhahad +3 more
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Frontiers in Energy Research, 2022 Transpiration cooling is a highly efficient active thermal protection technology, which has a great application prospect in the thermal protection of hypersonic vehicles. Nevertheless, the problem of large injection pressure caused by porous structure in
Xiaokai Zhang +5 more
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Nihon Kikai Gakkai ronbunshu, 2021 In recent years, with the depletion of fossil resources, there is a need to further improve the thermal efficiency of diesel engines. In order to improve the thermal efficiency of diesel engines, it is necessary to realize rapid combustion.
Kakeru NANJO +3 more
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Study the effect of injection pressure of a mixture of diesel fuel and vegetable oil on exhaust emissions of diesel engines by simulation [PDF]
E3S Web of ConferencesBiofuels are interested in using alternative fuel in diesel engines because those are friendly to the environment and can be recycled. However, characteristics of chemical and physical differences compared to diesel fuel.
Trung Pham Dinh +2 more
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