transformer

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transformer

 [trans-for´mer]
an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.
step-down transformer one for lowering the voltage of the original current.
step-up transformer one for raising the voltage of the original current.
References in periodicals archive ?
Add 170 ml of toluene to Waring Blender and slowly add exactly 6,0 grams of the organoclay product under test into toluene (170 ml of toluene weighs 145 grams at 77[degrees] F.) Addition to be made with Powerstat setting at lowest rpm to aid in proper dispersion of organoclay product.
PowerStats v 1.2 (Promega Corporation) software package was used to obtain statistical parameters of forensic interest including MP, matching probability; PD, power of discrimination; PIC, polymorphic information content; PE, power of exclusion and PI, paternity index (8).
Data analysis was performed using IBM SPSS Statistics for Windows, version 21.0 (IBM Corp., Armonk, NY, USA), R statistical software version 3.3.2 (available at: http:// www.r-project.org), and EmpowerStats (http://www.em powerstats.com).
The PowerStats software (Promega Corporation) was used to obtain allele gene and genotype frequencies of the 15 STR loci, and tests of Hardy-Weinberg equilibrium were performed using an online calculator (http://www.oege.org/software/hwe-mr-calc.shtml).
Datalab: PowerStats. Retrieved September 23, 2013, from the World Wide Web: http://nces.ed.gov/datalab/.
PowerStats, available in spring 2009, will permit users to produce complex tables and run regressions.
Allele frequencies, polymorphism information content (PIC), and heterozygosities shown in Table 1 were calculated with PowerStats v12 freeware (http://www.promega.com/geneticidtools/powerstats).