Analysis Food 183 Lubricating oils 143 Materials 119 Polymers 102 Lubrication and lubricants 101 Composite materials 100 Water 82 Testing 68 Surfaces (Technology) 57 Composition 54 Lubricant and lubricants 52 Soils 50 Plant fibers 48 Nanoparticles 46 Measurement 43 Thin films 41 Pollution 40 Additives 39 Automobiles 39 Drugs 36 Spectrum analysis 36 Water quality 33 Mechanical properties 32 Standards 30 Data processing 28 Organic compounds 26 Strains and stresses 26 Food contamination 25 Palm oil 24