This work studied the facilitation of transportation Missan heavy crude oil characterized with high viscosity 84.61 cp at 15 °C, low API 23.1,  by reducing its from break down asphaltene agglomerates using five solvents some novel combinations chemical additives were used for this study (naphtha & toluene, naphtha xylene, kerosene, toluene and xylene kerosene).The was measured after be...

A new simple model for the puffing and micro-explosion of composite multi-component water/liquid fuel droplets is suggested. This based on assumption that a spherical water sub-droplet located in centre droplet. The effects droplet thermal swelling are considered; Abramzon Sirignano applied analysis heating evaporation. It assumed puffing/micro-explosion starts when temperature at interface bec...

In this study, two auxiliary collectors (methyl naphthalene and naphthalene) of molybdenite the traditional collector (kerosene) were mixed for flotation, respectively. According to selection analysis collector, it was found that surface energy (γC= 44.50 mJ/m2) polycyclic aromatic hydrocarbons is very close (γS= 42.55 {100} surface. Therefore, can be physically adsorbed onto according principl...

OBJECTIVE To determine the pattern and severity of poisoning cases in emergency Kathmandu Medical College Teaching Hospital. DESIGN Retrospective observational study. MATERIALS AND METHODS All the poisoning cases due to various agents who attended Emergency from 1st of April 2002 to 30th of March 2003 were evaluated retrospectively. RESULTS A total of 67 poisoning cases attended emergency...

Combustion hazards associated with liquid fuels are often categorized in terms of the fuel’s flashpoint. However, in hazard scenarios where high-flashpoint fuel is released under pressure, jet breakup and aerosol formation will result. In these cases, this simplistic method of combustion hazard classification may be not sufficient and then alternative approaches are required. As for gases and d...

in order to determine the control of breeding sources of culex larvae in sewage wells by the larvicide abate, some studies were performed in the summer and autumn of 1972. in general, it was noticed in these studies that:1. the wells chosen as a control (5 wells) were active throughout the study periods and adult mosquitoes were captured plentifully. 2 in 4 sewage wells which were controlled by...

BACKGROUND Exposure to household air pollution (HAP) has been linked to systemic inflammation. We determined the impact of transition from traditional firewood/kerosene stove to bioethanol-burning stove on inflammatory biomarkers in pregnant Nigerian women. METHODS Women (n=324), cooking with kerosene/firewood, were recruited during their first trimester of pregnancy from June 2013-October 20...

Processes for the biotechnological production of kerosene and diesel blendstocks are often economically unattractive due to low yields and product titers. Recently, Clostridium acetobutylicum fermentation products acetone, butanol, and ethanol (ABE) were shown to serve as precursors for catalytic upgrading to higher chain-length molecules that can be used as fuel substitutes. To produce suitabl...

BACKGROUND Biomass cooking fuels are commonly used in Indian households, especially by the poorest socioeconomic groups. Cataract is highly prevalent in India and the major cause of vision loss. The evidence on biomass fuels and cataract is limited. OBJECTIVES To examine the association of biomass cooking fuels with cataract and type of cataract. METHODS We conducted a population-based stud...

To explain the phenomenon observed in previous experiments of kerosene-ignition failure scramjet combustors as kerosene temperature increases, we numerically investigate mixing characteristics a jet injected into cavity-based supersonic combustor at different injection temperatures by using compressible two-phase flow large-eddy simulation based on Eulerian–Lagrangian approach. The results indi...