Dc Power Supply Report Essay Example for Free

Dc Power Supply Report Essay Overview The goal of this experiment was to construct a power supply that would convert a 120-volt 60 Hz input ,such as that received from a wall socket, to a 12-volt dc voltage output with a ripple factor less than 0. % making it suitable for the operation of small electronic devices. Block Diagram Schematic Diagram Discussion The 120-volt rms 60 Hz input was used to represent a wall socket. To reduce the voltage from 120-volts to 12-volts a 10 to 1 step-down transformer was placed in the circuit. An FWB bridge was implemented to convert the AC signal to a DC signal. A voltage regulator was added to stabilize the output. Capacitors were also added to aid in the stabilization of the output signal. The capacitor values as well as the value of the load resistor were manipulated achieve the ideal output. Results Conclusion Utilizing the procedures apparatus discussed in this report, an output reasonably close to the ideal output was produced. The amount of components used in the experiment was minimized to reduce the overall cost of the circuit. However it was necessary to add capacitors to reduce the ripple voltage.

Irony in The Story of an Hour :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  Why do bad things happen to good people? We have heard this many times with the death of a car crash or another going bankrupt. Everyone has an ironic situation happen to him or her. Alanis Moressette performed a song about irony in the world’s lives. â€Å"†¦It’s like meeting the man of you dreams†¦then meeting his beautiful wife†¦Ã¢â‚¬  yeah isn’t THAT ironic, that seems to be my best fortune. Irony reveals a different reality than what appears. We see different types of irony in the stories we read, the songs we hear, and what we do in everyday life.   Ã‚  Ã‚  Ã‚  Ã‚  Mrs. Mallard is a woman who had seemed to live a sheltered life. She stayed with her husband, who worked on a railroad, to make ends meet. â€Å"There would be no one to live for during those coming years; she would live for herself.† This sentence suggests that she had lived her life to please her husband, and to be there for him waiting on him hand and foot. After the death of her husband, Mrs. Mallard cried and broke down for a moment wondering what would come next. She sat down and thought. Throughout the story, there are descriptions of spring. She looked out the window and saw the trees budding, and the clouds opening up with the sun shining through. She saw that there was new life for her. She prayed that she would have a long life that she could live, by herself. She was free from the pressure of being a wife. â€Å"Her fancy was running riot along those days ahead of her. Spring days, and summer days, and all sorts of days that would be her own.† As she sits in the chair thinking about her life ahead of her, her sister Josephine is in the other room thinking her sister is going to lose it because she just lost her husband. This type of irony shows that the other characters in the story think she is grieving over the death. But a couple paragraphs later, we find that she is crying tears of joy for the newfound freedom that has come.   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"She breathed a quick prayer that life might be long.† There is irony of this line and with the rest of the story. She stares out the window and prays that her days of life might be lengthened, so she can live for herself and have the freedom to do things.

Taboo: Management Consulting and Policy Prohibiting Women

The Taboo of Women in Management International management consulting firm Burns & McCallister is listed by Working Mother magazine as one of the top fifty firms in the United States for employment of working mothers and by Working Woman magazine as one of the top ten firms for women. The firm has earned this reputation for several reasons. First, nearly 50% of its partners are women. Second, it has a menu of employee benefits that includes such things as flex hours, sabbaticals, family leave, home-based work, and part-time partner-track positions.However, B&M recently has been the subject of a series of reports by both the Los Angeles Times and the New York Times that scrutinise its policy on female executives in certain nations. B&M has learned, through its years of consulting, that certain countries in which it negotiates for contracts prohibit the use of women in the negotiation process. The cultures of many of these countries do not permit women to speak in a meeting that include s men.Consequently, B&M has implemented a policy prohibiting women partners from being assigned these potential account negotiations and later the accounts themselves. Clerical help in the offices can be female, but any contact with client must be through a male partner or account executive. For example, Japan still has a two-track hiring system with only 3% of professional positions open to women. The remainder of the women in the Japanese corporate workforce become office ladies who file, wear uniforms, and serve tea. Dentsu, Inc. a large Japanese ad firm, had a picture of the typical Dentsu â€Å"Working Girl† in its recruiting brochure. Surrounding the photo are comments primarily about her physical appearance: such as (1) her breasts are â€Å"pretty large†; and (2) her bottom is â€Å"rather soft. † In response to criticism regarding B&M's posture, the head of the firm's New York office has explained: Look, we're about as progressive a firm as you'll find. But the reality of international business is that if we try to use women, we can't get the job. It's not a policy on all foreign accounts.We've just identified certain cultures in which women will not be able to successfully land or work on accounts. This restriction does not interfere with their career track. It does not apply to all countries. The National Organisation for Women (NOW) would like B to apply to all its operations the standards that it employs in the United States. No restrictions are placed on women here, NOW argues, and other cultures should adapt to our standards; we should not change our standards to adapt to their culture. NOW maintains that without such a posture, change can never come about

Body Fluids in Caren Campano Criminal Case Free Essay Example, 1250 words

Caren Campano mysteriously disappeared from her Oklahoma City home after having a fight with her husband. Upon encounter with the detectives, Caren s husband allowed them to look around the house and this inevitably proved to be his huge mistake. The detectives found a huge stain on the master bedroom s carpet which appeared to be a bloodstain. The forensic department performed numerous tests on the sample which are listed below: Microcrystal Hema Stick test: The blood testing kit utilizes a blood sensitive chemical to identify human blood in samples collected from the crime scene. The Hema stick test was performed on the sample collected from the bedroom carpet of Caren s house. The test came out to be positive because the sample indeed contained human blood. Luminol: The chemical luminol is a crystalline solid which produces chemiluminescence upon contact with blood. The Luminol spray is used to identify bloodstains which are not visible through the naked eye. Luminol is one of th e most popular blood identifying techniques that forensic investigators use to detect traces of blood at a crime scene. The crime scene is evenly sprayed with luminal and traces of blood are identified by the eerie blue illumination produced by the chemical in darkness. We will write a custom essay sample on Body Fluids in Caren Campano Criminal Case or any topic specifically for you Only $17.96 $11.86/page Detailed information is interpreted from the pattern of bloodstains formed at the crime scene. The pattern formed helps determine the track of blood and the number of blows inflicted. Moreover, the pattern also provides information about the location and position of the weapon used by the killer to inflict the wounds.