determination of the starter torque-speed diagram is a major task in the design or selection of a proper gas turbine starter. in this paper, the maximum power of the mgt-40 gas turbine starter was calculated based on the dynamics of the rotor, start-up logic, and compressor map. in a recent research, the pressure ratio was assumed as a linear function of the rotor speed and the required starter...

In this study, four different biodiesel fuels obtained from corn oil, safflower-rapeseed oil mixture (50%-50% v/v), waste chicken fat, and fleshing were tested in a six-cylinder, water-cooled, TDI diesel engine. Vegetable animal fat origin fuels’ effects on the performance, injection, combustion emission characteristics of test engine compared with each other petroleum-based fuel as reference f...

In this paper we advocate the integration of fault injection into a formal methods tool set. We start by giving some motivations from our past industrial experiences with VDM. Then, we report about our recent work on specification-based test case generation via model mutation. In this testing approach the idea is not to cover a specification structurally, e.g. all expressions/statements, but to...

Music listening can be regarded as a social activity, in which people can listen together and make friends with one other. Therefore, social relationships may imply multiple facets of the users, such as their listening behaviors and tastes. In this light, it is considered that social relationships hold abundant valuable information that can be utilized for music recommendation. However, utilizi...

The aim of the work described in this report is to show and understand the nitric oxide (NO) formation in a dimethyl ether combusting spray. In order to achieve it, optical measurements using laser induced fluorescence (LIF) have been performed in a combustion chamber. The measurements have been carried out using A←X (0, 1) excitation around 226 nm using a dye laser pumped by a Nd:YAG. The fluo...

On the night before the surgery, she was given tablet ranitidine 150mg and tablet alprazolam 0.5mg, as per our routine protocol. On the day of surgery, she was wheeled to the operation theater, her intravenous line was put and ringer lactate infusion was started. Monitoring included 5-lead electrocardiography, pulse oximetry, non-invasive blood pressure and end-tidal carbondi-oxide concentratio...

in this study, by using minimum, maximum and mean daily interpolated data from asfazari data base, the changes of agro climatic indices analyzed in iran during 1962-2004. at first, the indices calculated for each pixels and then trend and slope value evaluated by nonparametric mann-kendal and parametric regression method. in total, the results showed that the indices have positive trend on the ...