Standardization/Conclusion Ray Kroc is often called the “Henry Ford of food services”. He realized that the mass production of fast food required the combination of precise measurements and an efficient assembly process. “There is a science to making and serving a hamburger”‚ Kroc once said. Along those lines‚ Kroc required exact specifications on all of his beef patties: Fat content: below 19% Weight: 1.6 oz Diameter: 3.875 inches Onions: ¼ oz Kroc even had a laboratory in suburban
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Dental X-ray Unit History Discovery of x-ray Professor Wilhelm Conrad Roentgen * 1895 discovered the first example ionizing radiation * the key to his discovery was device called a Crooke’s tube. Scientists and Researchers * Dr. Otto Walkhoff * the first to expose a prototype of a dental radiograph. * accomplished by covering a small‚ glass photographic plate with black paper to protect it from light and then wrapping it in a sheath of thin rubber to prevent moisture
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X-rays and Ultrasound: X-rays and ultrasound are two different modalities used for different things‚ so an ultrasound can do some things an X ray cannot‚ and vice versa‚ and so this makes them very difficult to directly compare. Ultrasound: Above: An ultrasound machine. Ultrasound is the use of energy generated by sound waves of 20‚000 or more vibrations per second. Ultrasounds are generated by a device called a transducer. Bearing in mind that sound is a mechanical energy‚ the transducer
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tubing and bend the glass tube into a U-shape. The glass tube is then filled with a liquid‚ typically mercury‚ so that all trapped air is removed from the sealed end of the tube. The glass tube is then positioned with the curved region at the bottom. The mercury settles to the bottom After the mercury settles to the bottom of the manometer‚ a vacuum is produced in the sealed tube. The open tube is connected to the system whose pressure is being measured. In the sealed tube‚ there is no gas to exert
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FM 2 FLOW ALONG A VENTURI TUBE Summary The objectives of the experiment is to study the validity of the Bernoulli equation and to determine the coefficient of discharge‚ Cd‚ by calibrating the venturi tube as a flow meter. To investigate the validity of the Bernoulli equation‚ the static pressure is taken at each tapping and the total head is determined for the maximum difference setting. The velocity head is calculated using the Bernoulli equation. To calculate Cd‚ the volumetric flow rate
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her heart was beating regularly and she can breathe spontaneously. Sara was completely dependent on the PEG tube for feeding. The doctors responsible for Sara’s case decided that the life was with no value for Sara and the PEG tube should be withdrawn. Sara’s husband and her family reject this decision and they have approached the Sharia court to prevent doctor from withdrawing the PEG tube. The ethics of this case was turned on why the physician is recommending withdrawal‚ and why the husband (SDM)
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Ray Bradbury is an amazing author that not many people know exists. He was born in Waukegan‚ Illinois on August 22nd‚ 1920. His parents were Esther Bradbury and Leonard Spaulding. As a child‚ Ray liked to paint using watercolors along with oil. He enjoyed gathering Mexican artifacts during his childhood. In his childhood‚ Ray’s family moved to Los Angeles‚ California. His wife was Marguerite Susan McClure. He died at the age of 91 years old on June 5th‚ 2012. Ray Bradbury was an excellent author
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Microscale Crystallization – Craig Tube For this experiment‚ we had to find the percent recovery and melting point of pure sulfanilamide from impure sulfanilamide using the crystallization technique. To start‚ .1004 grams of impure sulfanilamide was put into a Craig tube with enough ethyl alcohol to barely pass the top of the sulfanilamide. The Craig tube was put into a stone block until boil‚ then check to see if the solid material had dissolve. With the addition of two more drops from a supply
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Fire tube boiler designing Fire tube boilers operate by sending combustion/flue gas by using a combination of straight tubes flanked by trouble held in identical vessel. Often identified by the variety of passes used (say for example a 3-pass or 4-pass fire tube boiler)‚ this refers to the variety of times combustion gas flows the capacity of the pressure vessel mainly because it transfers heat on the water. A wet-back fire tube boiler utilizes a water cooled publish zone (end closure). A dry-back
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BOURDON TUBE PRESSURE GAUGE Bourdon Tubes are known for its very high range of differential pressure measurement in the range of almost 100‚000 psi (700 MPa). It is an elastic type pressure transducer. The device was invented by Eugene Bourdon in the year 1849. The basic idea behind the device is that‚ cross-sectional tubing when deformed in any way will tend to regain its circular form under the action of pressure. The bourdon pressure gauges used today have a slight elliptical cross-section and
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