FAO–WHO telah mengadakan perhitungan, bahwa separuh dari karoten yang terserap oleh tubuh akan diubah menjadi vitamin A, jadi kira-kira hanya 1/6 dari kandungan karoten dalam bahan makanan yang akhirnya akan dimanfaat oleh tubuh. Satuan takaran untuk vitamin A yang digunakan adalah International Unit (IU) atau Satuan Internasional (SI). Saat ini satuan untuk takaran vitamin A diganti dengan retional equivalent (RE), ...
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Copper and Its Alloys
Copper is widely used as one of the techniques, either in a pure state and alloys. Copper has a tensile strength up to 150 N/mm2 in the form of molten copper and can be increased up to 390 N/mm2 through cold working process and to the type casting kekerasanya figure only reached 45 but can be upgraded to HB 90 ...
Read More »Maintenance Electric Power Generation
Maintenance of equipment required to maintain efficiency. Keeping investment, maintain reliability, and maintain economic lives. Especially for power plants, the parts that require maintenance equipment mainly is: a) The parts are shifted, such as: bearings, suction ring (piston ring), and hinges. b) The parts that bring substances with different temperatures, such as: heat exchangers (heat exchangers) cran boiler. c) electrical ...
Read More »Characteristics of Non-Ferro Metals 4
15. Cerium (Ce) Cerium (Ce) is referred to as rare metals (rare earth metal), has a melting point of 6400C can be added into the cast iron for the manufacture of the electrode, the manufacture of electric arc or a lighter stone materials (lighter flints). 16. Cobalt (Co) Cobalt (Co) is a metal that is silver white brwarna have the ...
Read More »Tahap III: Pengembangan Produk
Ide-ide yang menarik harus disempurnakan menjadi konsep produk yang dapat diuji. Ada perbedaan antara ide produk, konsep produk, dan citra produk. Yang dinamakan ide produk adalah produk yang mungkin ditawarkan perusahaan ke pasar. Konsep produk merupakan versi yang lebih rinci dari suatu ide yang dinyatakan dalam istilah yang dimengerti konsumen. Sedangkan citra produk ialah gambaran khusus yang diperoleh konsumen mengenai ...
Read More »Characteristics of Non-Ferro Metals 3
9. Copper, Copper, Cuprum (Cu) Copper is one of the important metal as the material use is very widespread technique used both in the pure state or in the form of alloys. Pull the copper with the power of 150 N/mm2 as Copper Cast and the cold working process Copper tensile strength can be increased up to 390 N/mm2 as ...
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