A new source mechanism is proposed for the 'reflected' ion beams observed in the foreshock region of the earth's bow shock. In our model the beams originate in the magnetosheath downstream of the quasi-perpendicular portion of the shock. The quasi-perpendicular shock transition is characterized by two downstream ion populations including high-energy gyrating ions in addition to the directly tra...

In this work we have evaluated the dielectric properties of poly vinylidene fluoride (PVDF) thin films of thickness (≈ 20μm) as a function of temperature from 40-70C and frequency varying from 500 Hz to 100 kHz respectively for Al-Al and Cu-Cu electrode configuration. The dielectric constant values increases with the increase in temperature. A broad peak is found at around (70±5)0C. The maximum...

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lycopene is a natural and dominant pigment in tomato which today itsextraction enhancement from tomato and tomato products is trying. in this study atfirst wed use pectinase at 25, 30, 35 and 40 ml/kg concentration at 0, 30, 60, 90,120 and 180 effecting time in 55 0c constant temperature incubation. then beforeextraction half of samples were washed with 94% ethanol at 60 0c for 5 second. ithas ...

Until a year ago the patient, a girl aged 5 years, was to all appearances norma], mentally and physically. During the dst twelve months she became fat, listless, unusually silent, Prone to sit about, disinclined to take an interest in her Surroundings or to play with other children. With the increasing fatness growth in stature was at an normally vigorous rate, hair developing on the limbs and ...

Friction stir welding (FSW) is a solution to overcome the problems of AA 6061 welding. When initial temperature T0 material increased during FSW process while parameters are kept constant then parameter value can be lowered. was varied by Troom temperature, 50 0C, 75 100 0C and 125 0C. The weld joint design form square butt joint. By using this approach higher T0, with being constant, produce p...

derivation is consistent with the notion of abstract graph, i.e., any abstract derivation should start from an abstract graph and should end in an abstract graph. De nition 27 (well-de ned equivalences). For each abstract derivation [ ], de ne ([ ]) = f ( 0) j 0 2 [ ]g, and similarly ([ ]) = f ( 0) j 0 2 [ ]g. Then equivalence is well-de ned if for each derivation : G ) H we have that ([ ]) = [...

Cereal Chem. 73(6):744-750 Lesser grain borer (Rhyzopertha dominica), red flour beetle (Tribolium flour beetle caused some off-odor. The other three insects caused little or castaneum), rice weevil (Sitophilus oryzae), saw-toothed grain beetle no objectionable odor, even though infestation was heavy. High concen(Oryzaephilus surinamensis), and rusty grain beetle (Cryptolestes fertrations of 2-p...