1 Clinical Psychologist: Doctorate Degree in Psychology (4 to 7 years of graduate school) 2  Industrial-Organizational Psychologist: Master's Degree (2 to 3 years of graduate school)  Forensic Psychologist: Master's Degree (2 to 3 years of graduate school); a doctoral degree is recommended.
Submarine Propulsion Systems. During World War II, most American submarines were powered by diesel-electric systems. This was a departure from earlier submarine power systems, which were direct drive types, little changed from the earliest boats. In this direct-drive power system, the diesel engine is directly connected to the propeller shaft.
The motor of the Arcona 380Z, Oceanvolt SD15, acts as a high efficiency hydro generator when sailing with just the push of a button. This means that it generates energy while you are sailing and stores it in the propulsion battery pack for later use.n a calm day the Arcona 380Z can motor at a speed of 4 knots just by using the solar power created from the sun and the Oceanvolt SD15 electric motor.