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1. Select a MEMS product (commercially available product)
(Examples)
- Accelerometer for airbag system or Wii remote- Gyroscope for cameras- Digital Micromirror Display (DMD) or Digital Light Processing (DLP) for projection system or 3D printing- Pressure sensor for tires- Microphones for laptops and cellular phones- Inkjet printer head- DNA/Protein chips for bio analysis- Micro waveguide and optical switches for telecommunication
2. Research on the following three aspects via patents, journals, reports, online resources, etc.
· Design and Theory
· Fabrication
· Challenges and Prospect
3. Write a report (1200 words)
· No fixed format but must include the above mentioned three contents
· Include bibliography
A single-row deep groove ball bearing operating at 1500 rpm is acted upon by a 2668 lb. radial load. The inner ring rotates, the load is steady and the service is continuous. Determine the rating life in hours if the basic load rating is 9210 lb.
A helical compression spring made from hard drawn wire needs to be designed to fit inside a 50mm cylindrical cavity and there must be enough space inside the coils for a 20mm cylindrical guide rod.
a piston-cylinder contains air at a pressure of 500 kpa. the piston movement is resisted by a spring and atmospheric
the pipe that supplies drinking water to a community in a cold region of the planet is buried a depth of 3m from the
the flow rate of liquid metal into the downsprue of a mold 1 ls. the cross-sectional area at the top of the sprue 800
Find the rate of energy flow through a copper block of cross-sectional area 15 cm^2 and length 8.0 cm when a temperature difference of 30 degree C is established across the block
a 60-kg wrecking ball b is attached to a 15-m-long steel cable ab and swings in the vertical arc shown. determine the
hot air at a temperature of 60c is flowing through a steel pipe of 10 cm diameter. the pipe is covered with two layers
Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.
Helium is to be compressed from 120 kpa and 340 K to 700 kPa and 460 K. A heat loss of 20 kJ/kg occurs during the compression process. Neglecting kinetic energy changes, determine the power input required for a mass flow rate of 89 kg/min.
a projectile is fired with an initial speed of 63.3msat an angle of 43.7circ above the horizontal on a long flat firing
an accident at a nuclear power plant causes the main valves to close and stop the main water flow that cools the
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