الفترة:
Subjects: Data; Encryption; Symbolism; Writing
Subjects: Heavy minerals; Minerals; Water resources; Water
Subjects: Carbon fibres
Subjects: Stainless steel; Steel alloys
Subjects: Friction
Subjects: Petroleum products
Subjects: Pollution; Soils
Subjects: Data processing
Subjects: Algorithms; Data; Encryption
Subjects: Algorithms
Subjects: Lasers; Optical properties
Subjects: Computer software
Subjects: Lasers
Subjects: Water
Subjects: Sanitation; Waste water
Subjects: Solar cells
Subjects: Electrical properties
Subjects: Minerals
Subjects: Computing; Electric heating
Subjects: Glass
Subjects: Electrical generators
Subjects: Electric power systems; Electricity
Subjects: Distillation
Subjects: Thermodynamics; Entropy
Subjects: Data; Digital electronics; Encryption
Subjects: Brass
Subjects: Gas
Subjects: Reinforced plastics
Subjects: Linear programming; Computer software
Subjects: Concrete construction; Dams
Subjects: Iraq; Tigris River; Sanitation; Waste water