Problem 1 An angle bracket ABC is restrained by a high strength steel wire CD, and it supports a load P at A, as shown in figure. The strength properties of the wire and the shear pin at B are o, = 350 MPa (wire), and t,=300 MPa (pin at B). If the wire and pin are to be sized to provide a factor of safety of the wire F.S = 3.3 and a factor of safety of the pin F.S = 3.5. What are the required diameters of the wire (to the nearest mm) and the pin (to the nearest mm)?

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Biological Processes

Biological solid waste includes bacterial and contaminated waste produced by living individuals. Its treatment is essential to prevent the spread of any air-borne or water-borne diseases or diseases transmitted from one organism to another in a food chain. There are many benefits of the biological solid waste treatment and some of them are: the minimized quantity of waste substance, waste control, eradicating any disease-causing pathogens, generation of biogas, composting, anaerobic digestion, bio drying, mechanical biological treatment, microbial fuel cell, phytoremediation, and biofiltration. The final products of the biological solid waste treatment may be recycled to obtain organic fertilizers or disposed of in SWDS (Solid Waste Disposal Site) after proper treatment.