The Operator’s Guide For Minimizing Energy Costs

The consumption of petroleum by transportation activities is increasing despite the finite limits on its supply. This paper concentrates on the motor vehicle driver, his driving habits, and guides to reduced fuel consumption which would enable the individual to curtail wasteful practices with respect to vehicle operation

EFFECT OF SOAKING TIME ON SOME ENGINEERING PROPERTIES OF COWPEA (Vigna unguiculata)

The study evaluated the effect of soaking time on some selected engineering properties of black-eye pea and brown beans cowpea variety with a view to providing the necessary data that will aid the design and development of some specific process equipment such as size reduction, cleaning, sorting and grading machines as well as storage components and facilities . Mature seeds procured from the market were manually cleaned and soaked in water at room temperature within the range of 27-310C for 2minutes, 4minutes, 6minutes, 8minutes and 10minutes and the selected response parameters observed. The results showed that length, width, thickness, geometric mean diameter, mass, aspect ratio and surface area increased non-linearly from 8.10mm to 12.00mm, 5.28mm to 7.89mm, 5.23m to 6.91mm, 6.20mm to 8.05mm, 0.33g to 0.52g, 0.71 to 0.77, and 132.70mm2 and 134.69mm2 respectively as soaking time increased for black-eye pea; while for brown beans variety the results showed that length, width, thickness, geometric mean diameter, mass, aspect ratio and surface area increased non-linearly from 8.03mm to 11.60mm, 5.25mm to 7.78mm, 5.18m to 6.69mm, 6.17mm to 7.85mm, 0.34g to 0.58g, 0.66 to 0.74, and 131.65mm2 and 134.51mm2 respectively as soaking time increased. More so shape and bulk density decreased non-linearly from 0.86 to 0.78 and 0.77g/cm3 to 0.64g/cm3 with increased soaking time for black-eye pea while for brown beans, it decreased non-linearly from 0.80 to 0.73. The static coefficient of friction on three different material surfaces increased non-linearly from 0.3773 to 0.7089 on rubber, from 0.3772 to 0.6630 on stainless steel, and from 0.4177 to 0.6576 on galvanized steel as soaking time increases for both varieties; while angle of repose increased non-linearly also from 22.300 to 38.010 for both varieties when soaked. From the results, it is recommended to use materials of construction indicating value for angle of repose lower than 31.670 in the manufacture of process components requiring easy movement of products along its surface.Keywords: Black eye pea, Brown beans, Soaking time, Engineering properties

ASSESSMENT OF A MODIFIED MIXER IN WET DEHULLING OF COWPEA (Vigna unguiculata)

This study evaluates the performance of a modified flour mixer for use as a wet bean de-hulling device. The effect of soaking time, running time and operating speed was investigated. The machine was driven at 150, 200, 250, 300 and 350 rpm, for operating times 1, 2, 3, 4 and 5mins in dehulling beans soaked in water at ambient temperature of 29 ± 2oC for 2, 4, 6, 8 and 10 minutes. The results showed that soaking time, operating speed and machine running time have significant effect (at 5% significance level) on all the performance indices of the machine. The highest de-hulling efficiency of 92.68% with percentage seed breakage of 31.35% was observed for black eye pea; corresponding values for brown beans were 91.65% and 25.20% respectively. These values were obtained at seed soaking time of 6 minutes, operating speed of 350 rpm and machine running time of 4 minutes.Keywords: Dehulling, Black eye pea, Ife brown, Soaking time, Running time, Percentage breakages

I Long for My Home in Kentuck\u27

Illustration of black text and simple curving lines on white backgroundhttps://scholarsjunction.msstate.edu/cht-sheet-music/13603/thumbnail.jp

Biosynthesis of silver nanoparticles using Garcinia kola and its antimicrobial potential

We have investigated the green synthesis and antimicrobial activity of silver nanoparticles using Garcinia kola. Aqueous extract of G. kola was used to reduce AgNO3 solution to obtain black nanocrystal of silver nanoparticles. Antimicrobial activity of the silver nanoparticles was tested against Escherichia coli, Klebsiella pneumonia, Bacillus subtilis, Staphylococcus aureus, Aspergillus niger, Rhizopus stolonifer and Candida albican. The synthesized silver nanoparticles was characterized using UV-vis spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. UV-visible exhibits prominently the characteristic surface plasmon resonance at around 427 nm. A remarkable particle growth onset of 10 min was observed while the reaction ended within 30 min. The XRD analysis shows that the synthesized silver nanoparticles are crystalline in nature and well-dispersed silver nanoparticles with an approximate size of 10.4 nm were observed on TEM. The synthesized silver was found to possess good antimicrobial activity against all the tested microbes. The application of the green synthesized nanoparticles can be used in many fields such as foods, beverages, cosmetics and medicine

Sediment grain-size and loss-on-ignition analyses from 2002 Englebright Lake coring and sampling campaigns

This report presents sedimentologic data from three 2002 sampling campaigns conducted in Englebright Lake on the Yuba River in northern California. This work was done to assess the properties of the material deposited in the reservoir between completion of Englebright Dam in 1940 and 2002, as part of the Upper Yuba River Studies Program. Included are the results of grain-size-distribution and loss-on-ignition analyses for 561 samples, as well as an error analysis based on replicate pairs of subsamples

Attitudes About Sex and Marital Sexual Behavior in Hai Duong Province, Vietnam

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74926/1/j.1728-4465.2005.00047.x.pd