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You are employed as a database administrator by a start-up company in Menlo Park, California. The company is developing a new payments system that is attracting a lot of attention from venture capitalists. Customers will be able to process credit card transactions remotely and transmit payment information over the internet to your data center. During the latest round of negotiations for funding, one of the potential backers announced that he or she would be conducting a due diligence assessment to ensure that the new payments system design has adequate security controls. This potential backer is particularly concerned about customer privacy issues, as this is a hot topic in California and elsewhere. Your manager, the Chief Technology Officer (CTO) of the firm, has asked you to make recommendations on several aspects of SQL Server database security. Please consider:
A two-liter bottle is one-third full of water and two-thirds full of air. The air in the bottle has a gage pressure of 340 kPa. the bottle is turned upside-down and the cap is released so that the water is rapidly forced out of the bottle
A passive solar house that is losing heat is outdoors at an average rate of 50,000 kJ/h is maintained at 22oC at all times during a winter night for 10h.
Treatment plant was designed for 9 MGD. It is currently processing 13 MGD. Your task is to assess the expected treatment performance of the primary clarifiers. There are two clarifiers 45 feet in diameter.
The maximum hoop stress is (65000/2) psi and the maximum shear stress is 16000 psi. If the diameter of the tank is 7 inches,what is the minimum wall thickness.
Help with a site plan - Design on paper to add some other things in it.
One method of removing phosphate from wastewater effluents is to precipitate it with aluminum sulfate. A plausible stoichiometry (but not exact because aluminum and phosphate can form many different chemical materials) is
a. Determine the hydraulic radius, hydraulic depth, and section factors for critical and normal flows. b. Determine the alternate depth of flow that will carry the same discharge.
A 20 mgd wastewater treatment plants primary clarifier influent has 800 mg/l solids. the clarifier removes 18 percent of the solids. the sludge flow rate is 0.070 MGD.
A gas stream contains 18.0 mole% hexane and the remainder nitrogen. The stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. The hexane mole fraction in the gas stream leaving the condenser is 0.0500.
A line of sheet piling is driven 4m into a firm clay and retains, on one side, a 3m depth of fill on top of the clay. Water table level is at the surface of the clay. The unit weight of the fill is 18kN/m3 and the saturated unit weight of the clay is..
The wind reaches a speed of 27.8 m/s in a storm. calculate the force acting on a 1m x 2m window facing the storm. the window is in a high-rise building. the air density p= 1.2 kg/m3.
A 40 cm diameter well has been constructed in a water-table aquifer. A pump capable of continuous discharge at 600 m3/day has been installed to test the well. Observation wells are located 10 meter and 50 meters from the pumped well. After pumping co..
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