Air is provided tangentially over water surface with velocity between 6 and 20 m/s to mix and create 2 to 4 cm surface waves. After 10 minutes of mixing, the water is sampled from the point located 3 cm from the bottom and 2 cm from the wall of glass vessel. The sampling is done without stopping the airflow. The dispersed oil is extracted with methylene chloride and concentration is measured by absorbance in 580 nm light (Mackay, et al., 1978). It was found that, observed dispersion efficiency was highly sensitive to air inflow rate and angle of entry (Mackay, et al., 1978) (National Research Council, 1989).
.1.Propolis samples The present study was carried out using propolis from several regions of Morocco (Table 1). These areas are different in their plants and climates. 2.2. Preparation of the ethanol extract of propolis (EEP) Propolis samples (10 g) were cut into small pieces and extracted with 100 ml 70% ethanol at ambient temperature by macceration under agitation for a week. The hydroalcoholic extract solution was then filtered through a Whatman filter paper to eliminate the residual mass, and centrifuged for 10 min at 4000tr.
Stir the sample in the viscometer with the thermometer, use a circular motion at (30to 50) rpm in a horizontal plane. Remove thermometer when the temperature remains constant within 0.03P ᵒPC of the test temperature during one minute of continuous stirring. 6. Place the tip of the withdrawal tube in the gallery at a point and apply suction to remove oil until its level in the gallery is below the over flow rim. 7.
The solution was then taken out of the oven to be put in a pre-heated muffle furnace which was maintained at 650oC. This was done for the calcination of the solution. After 2 hours, the quartz crucible was removed from the furnace to be cooled down to ambient temperature. The mixture of nickel nitrate, urea and de-ionized water was grinded for four hours after being removed. Preparation of Nickel Oxide
The optimized ratios of the polymers were calculated by using 22 factorial design. (Table 1). Ethyl cellulose (2gm) was dissolved in 20 ml of methylene chloride2. The polymer phase of ethyl cellulose was then added to 250 ml of 0.25% w/v methylcellulose aqueous solution (over night dispersion). Agitation speed was maintained at 350 rpm which helps in complete removal of methylene chloride.
Production is 4.3 million per year with 30,000 c/s per day during peak season. Sale is 6.0 million c/s with a turn over of 100 crores. LBL follows FEFO principle i.e. first expiry first out. There are various depots for the distribution to customers in Gurgaon, Delhi,Faridabad,
However, statistics are various when it comes to hurricanes intensity and frequency with rising temperature. For example, according to Pew Centre, "Globally, there is an average of about 90 tropical storms a year", supporting it with a graph that shows a 40% increase in North Atlantic tropical storms from 1950 until 2007. Another study found that during a period of 90 years, when the average global temperature increased by 0.7C, extreme hurricanes similar to Katrina, which devastated New Orleans in 2005, were nearly twice as likely in warmer years as colder years. (Steve Connor, 2012). While other sources like IPCC AR4 report (2007), says regarding global tropical storms: "There is no clear trend in the annual numbers [i.e.
Prevalence of theileriosis at different location of Dehradun district in different seasons was shown in table 3.3. In Subhashnagar the overall prevalence on the basis of blood smear examination was 36.5% (30/82). In spring season the prevalence rate was 13.3 % (2/15). In summer season the prevalence rate was 32 % (8/25). In rainy season the prevalence rate was 71.8% (18/26).
(Voucher specimen No. 1246). Propionibacterium acnes Strain (MTCC 1951) was procured from (MTCC) IMTECH, Chandigarh. Preparation of extracts and fractions The plant materials were dried and ground to a coarse powder. The ground plant powder (300 gm) was extracted with (80%) methanol by soxhelation for 48 hours.
Calibration Curve for SO2 Determination of Nitrogen oxides in ambient air : Concentration of NOx in ambient air is estimated by Jacob Hochheiser method. Oxides of nitrogen are collected from bubbling air through sodium hydroxide solution to form stable sodium nitrite. The nitrite ion produced is determined photometrically by reacting with phosphoric acid, sulfanilamide and NEDA at 540 nm. Gases are sucked through a tapping provided on the suction side of the blower in HVS through a set of impingers containing 30 ml of absorbing solution. A flow rate of 1.2 liters per minute was maintained in rotameter for 24 hours sampling period.