Papers by Seyed Mohammad Saleh Hadavi
SAE International Journal of Fuels and Lubricants, Nov 2, 2009
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SAE technical paper series, Apr 14, 2015
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SAE technical paper series, Apr 16, 2012
ABSTRACT
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SAE International Journal of Fuels and Lubricants, Apr 1, 2014
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SAE technical paper series, Apr 8, 2013
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European Biomass Conference and Exhibition Proceedings, 2011
This work investigates the effect of a multifunctional additive package in the pure rape seed oil... more This work investigates the effect of a multifunctional additive package in the pure rape seed oil (RSO) on exhaust particulate emissions in terms of, number concentration and size distribution using a DI diesel engine. The combustion and emission performance was evaluated. A detergent based multifunctional additive package was added to the RSO. A comparison test was conducted to investigate the influence of the additive package on particulate number and size distributions using a SMPS. The engine used was a 6 cylinder, turbocharged, intercooled Perkins Phaser Engine, fitted with an oxidation catalyst and meeting the Euro II emissions limits. The tests were conducted under steady state conditions of 23kW and 47kW power output at an engine speed of 1500 rpm. The incylinder pressure, gaseous and particulate exhaust emissions were measured.The Particle size distribution was determined from the exhaust sample using a Dekati microdilution system and SMPS Analyser. The results show that the additive package could effectively reduce the particulate number concentrations and change the distribution characteristics of particulates.
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SAE Technical Paper Series, 2015
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SAE Technical Paper Series, 2014
Direct use of straight vegetable oil based biofuels in diesel engines without trans-esterificatio... more Direct use of straight vegetable oil based biofuels in diesel engines without trans-esterification can deliver more carbon reductions compared to its counterpart biodiesel. However, the use of high blends of straight vegetable oils especially used cooking oil based fuels in diesel engines needs to ensure compatible fuel economy with PD (Petroleum Diesel) and satisfactory operational performance. There are two ways to use high blends of SVO (Straight Vegetable Oil) in diesel engines: fixed blending ratio feeding to the engine and variable blending ratio feeding to the engine. This paper employed the latter using an on-board blending system-Bioltec system, which is capable of heating the vegetable oils and feeding the engine with neat PD or different blends of vegetable oils depending on engine load and temperature. A used cooking oil derived SVO type of biofuel, the C2G Ultra Biofuel (C2G: Convert to Green), which is a fully renewable fuel made as a diesel replacement from processed used cooking oil, used directly in diesel engines specifically modified for this purpose, has been investigated in this research. A series of real world driving tests were conducted on a 44 ton articulated truck. A dual fuel tank containing both PD and the C2G Ultra Biofuel was installed. The engine was started with PD and then switched to C2G Ultra Biofuel gradually. The vehicle was tested on either neat PD or blended fuel mode with different load (empty or fully loaded trailer). The fuel consumption and tailpipe emissions were measured. This paper focused on the fuel consumption and GHG reductions. The fuel consumption was determined by volumetric, mass and energy per km travelled and per ton of GVW. The results show that the fuel consumption for neat PD and blends was at the similar level and has a good inverse linear correlation with GVW. The substitution ratio of PD by the C2G Ultra Biofuel is 86∼91% and 74∼81% for hot start and cold start trips respectively. The GHG reductions by the C2G Ultra Biofuel are 85∼89% and 73∼78% for hot start and cold start trips respectively.
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Journal of anesthesia, Jan 27, 2015
One of the most exhausting complications of spinal anesthesia, especially in parturients, is post... more One of the most exhausting complications of spinal anesthesia, especially in parturients, is post-dural puncture headache (PDPH). This headache is not responsive to the usual pain killers. Ondansetron is a 5-HT3 receptor antagonist which is generally used for the prophylactic management of nausea and vomiting; however, studies have found that ondansetron might decrease the incidence of PDPH. Therefore, we aimed to evalute the effect of ondansetron on decreasing the incidence of PDPH. In this double-blind randomized placebo-controlled clinical trial, 210 parturients who underwent elective cesarean section under spinal anesthesia were randomly allocated to two groups. The intervention group received 0.15 mg/kg ondansetron, while the control group received 5 ml normal saline. Heart rate and mean arterial pressure (MAP) were recorded during surgery. Furthermore, postoperative nausea and vomiting (PONV) and PDPH in the two groups were noted by an anesthetic nurse for 3 days and compared....
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SAE International Journal of Fuels and Lubricants, 2014
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SAE Technical Paper Series, 2013
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SAE Technical Paper Series, 2013
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SAE International Journal of Fuels and Lubricants, 2012
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SAE International Journal of Fuels and Lubricants, 2009
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Biomass and Bioenergy, 2013
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The gulf journal of oncology, Sep 1, 2022
From 17,000 new cases of esophageal cancer worldwide during last year, 16,000 proved to be fatal.... more From 17,000 new cases of esophageal cancer worldwide during last year, 16,000 proved to be fatal. Late or incorrect diagnosis of esophageal cancer cases increases its fatality rate. Today, a data-mining technique can predict the course of the disease with the help of an upto-date technology. With this knowledge, we can reduce esophageal cancer mortality. This study aims to find an association between general characteristics, screening tests, and esophageal cancer based on raw data from the Cancer Research Center within-person interviews, using data mining and classification techniques on mortality. The 5-year medical records of 512 esophageal cancer patients and those with problems related to this cancer, with 50 functional characteristics, were included in this model. In order to provide a prognostic and rule discovery model for esophageal cancer suffering, we used
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Gulf Journal of Oncology , 2022
From 17,000 new cases of esophageal cancer worldwide during last year, 16,000 proved to be fatal.... more From 17,000 new cases of esophageal cancer worldwide during last year, 16,000 proved to be fatal. Late or incorrect diagnosis of esophageal cancer cases increases its fatality rate. Today, a data-mining technique can predict the course of the disease with the help of an upto-date technology. With this knowledge, we can reduce esophageal cancer mortality. This study aims to find an association between general characteristics, screening tests, and esophageal cancer based on raw data from the Cancer Research Center within-person interviews, using data mining and classification techniques on mortality. The 5-year medical records of 512 esophageal cancer patients and those with problems related to this cancer, with 50 functional characteristics, were included in this model. In order to provide a prognostic and rule discovery model for esophageal cancer suffering, we used
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Papers by Seyed Mohammad Saleh Hadavi