11Treasured since ancient times for its permanence and beauty, gold has emerged j'.n the late twentieth century as an essential industrial metal. Electronic computers could not function reliably without gold for their complex circuitry. Men could not have reached the moon without gold to shield their equipment.and spaceships fr…
applying certain tre~tments to the soil. Further, some structures, such as steel storage tanks, can be supported directly on a specially prepared pad of soil without the benefit of intervening structural members. Thus the word foundation refers to the soil under the…
Perhitungan dan analisa statistika yang telah dilakukan, dengan mengambil data pada kurun tahun 1963-1977, membuktikan kebenaran dugaan aan nerkiraan ba.hwa antara ekspor dengan pertumbuhan ekonomi mempunyai hubungan korelasi yang sangat kuat, yang ditunjukkan oleh hubungan linier berdasarkan regresi produk nasional bruto atas ekspor, dengan mengamb…
Variables in the reduction of New Ze.aland ironsand concentrate: pellets, by solid carbonaceous materials, were investigated on a. Mettler thermobalance. supplemented by metallurgical examination. Weight changes were translated into rates of reaction, using iron analysis to fix the end points. Carbonaceous bed reduction of pellets was a function…
A number of chromite occurrences are known to exist in the Indonesian archipelago. The most recent investigations were undertaken by the Directorate of Min. eral Resources in cooperation with the Federal r°ns- titute For•Geosciences and Natural Resources of Germany in the Ophiolite Complexes. The survey led to the discovery of several minera…