[PDF] Top 20 Utilização de blogues na formação inicial de professores : um estudo exploratório

... for magnetic refrigeration year after year ...near room temperature magnetic refrigerators reported per decade since ...of room temperature magnetic Refrigeration; It can ... See full document

... the development of prototype magnetic ...prototype magnetic refrigerators capable of operating with a varying degree of efficiency at room temperature have been built and tested to ...a ... See full document

... the development of magnetic refrigeration (MR) operating at room temperature has shown that it can provide a reliable, energy-efficient cooling ...the magnetic refrigerator, it ... See full document

... low temperature (less than 10°C), hence the requirements of refrigeration became even more imminent and it's applications for preserving eatables came further into ... See full document

... The magnetic refrigeration at room temperature is an emerging technology that has drawn the interest of researchers around the ...world. Magnetic refrigeration is a cooling technology based on ... See full document

... Abstract— Modern society largely employs refrigeration for several uses. Starting from domestic, commercial, industrial, for human comfort such as comfort air conditioning, to marine and transport applications. Printing ... See full document

... ordering mechanism might be the origin of the change in Curie temperature. It is known that pair- ordering originates from the unbalanced distribution of the atoms [14, 15]. In Fe 3 Pt alloy, three kinds of atomic ... See full document

... In a two-neck round bottom flask, p-toluidine was dissolved in tetrahydrofuran and mixed with maleic anhydride. Mixture was stirred at room temperature under an inert atmosphere overnight. The resulting ... See full document

... storage temperature had significant effect on germination ...(3). Room temperature was better than refrigerator in germination percentage where only 62% and 60% was recorded for Alphonso and ... See full document

... The crystal structure of the electro deposited CoNiP alloy thin films was determined by XRD analysis. X- ray diffraction patterns of CoNiP films obtained at room temperature were shown in fig 4. The ... See full document

... with cobalt in small concentrations. It can be seen from Figure 9 that the EPR line is broad and this might be due to dipolar interactions between the manganese ions with mixed valence states [35]. Usually, the ... See full document

... The icebox temperature management may be a basic RC network connected to associate I/O pin. By measurement the charging time of the RC network, we are able to verify the potentiometer resistance, and thus, the ... See full document

... ambient temperature and de- gree of loading affects internal temperature of selected foodstuffs while frequency of door openings does ...ambient temperature does not exert an effect on the ... See full document

... double-distilled water was added to the mixture to keep the final volume at 25 mL. After ultrasonic dispersion, the mixture was transferred into a Teflon-lined stainless steel autoclave with a capacity of 30 mL for ... See full document

... FTIR spectroscopy was conducted to observe the surface modification of AuNPs. The solid of AuNPs sample for FTIR measurement was prepared by centrifugation of colloidal AuNPs at 12000 rpm at room ... See full document

... In the EDS-repulsive system, the superconducting magnets (SCMs), which do the levitating of the vehicle, are at the bottom of the vehicle, but above the track. The track or roadway is either an aluminum guide way or a ... See full document

... external magnetic field with a frequency of 295 kHz and intensity of 500Oe, and the results was given as the specific heating rate(SHR) to a mixture of water and aimed ...slurry temperature was measured ... See full document

... potential applications in different fields, such as diagnosis of diseases, magnetic resonance imaging, sensors, actuators, magnetic storage devices, biomedical applications etc. The synthesis techniques ... See full document

... tube refrigerator may offer an alternative to cryocooler designs such as those based on the Stirling cycle or of the Gifford-McMahon ...low temperature thus obviating a major source of ...tube ... See full document

... of temperature and the sun's rays, by using IR spectroscopy, and calculated the percentage of the active substance to conduct calibrations and the percentage of the active substance under the influence of these ... See full document