Topics: Farm machinery, semi mounted plough, ploughing, harrowing, lugging, geometric spacing factor, tillage operation, milling machine capacity

Topics: Tools, design, jigs, fixtures, tool work, clamping devices, clamps, form tool, forging, forging operations, extrusion, piercing banking, bending, drop forging, upset forging

Topics: Instrumentation, measurement, automation, zero-order system, first-order system, second-order system, static sensitivity, U-tube manometer operation, experimental data analysis, mean deviation, standard deviation, pie chart, instrument sensitivity, instrument precision

Topics: global maritime oil choke points, OPEC formation, energy security, Nigeria oil industry law, Hydrocarbon tax, petroleum exploratory licence, Midstream gas operation license

Topics: Crystallography, x-ray diffraction, electron microscopy, crystal structure, lattice constant, diffraction methods, camera resolution, Bragg law, crystallographic planes, crystallographic directions, diffractometer detector circuit, Weiss zone law, X-rays characteristics, crystal, symmetrical operation, plane of symmetry, X-ray diffractometer, X-ray spectrometer, optical microscope limit of resolution, linear absorption coefficient, mass absorption coefficient