IEEE Technical paper based on 1597.1 standard in Electromagnetic Lab Report

IEEE Technical paper based on 1597.1 standard in Electromagnetic compatibility - Lab Report Example To achieve this, we performed a series of shielding effectiveness (SE) tests for a board level shielding product with different apertures by means of a reverberation chamber. An analytical shielding effectiveness formulation has been developed in comparison with the shielding effectiveness (SE) measurement results. When performing tasks related to electromagnetic shielding, Board Level Shielding (BLS) is widely used for isolating electromagnetic interferences. A typically perfect Board Level Shielding (BLS) is deemed to have no apertures and it is fixed to the ground plate of the circuit board all round in order to reach maximum shielding effectiveness (SE). By introducing several apertures, we can be able to make the Board Level Shielding (BLS) lighter weight and increase its convenience. To evaluate the effect of the aperture size and the total number of apertures on the shielding effectiveness, several tests were performed in the lab and a number of apertures of different sizes and the results obtained were compared. The results are processed and used to plot the corresponding shielding effectiveness (SE) data using calculation tools based on the shielding theory. The IEEE standard 1597.1 demands that we use feature selective (FSV) to compare the level of agreement between the reference and the numerical results. In this method, the data sets are compared by decomposing them into two parts: This approach involves taking the overlapping portion of the two datasets and interpolating them so that they share a coincident x axis location. A Fourier transformation is then used to transform this data. The two data sets are low (DC), band (L0) and high pass (Hi) filtered. The six elements are then inversely transformed. Comparing the trend data gives the Amplitude Difference Measure (ADM). Shielding effectiveness of an aperture

Race Essays -- essays research papers

Although I was able to witness many different examples of inequalities in most of my daily encounters, a situation occurred that has had the ability to overshadow all of my other observations. While at work, I was able to have a conversation with a co-worker about her father’s recent loss of a job promotion. What makes this situation, such a powerful example of the force of stratification is more that just the conversation that took place but also in the context in which I had it and regrettably in my response to the conversation. I am still unclear as how our discussion began, but none the less, a co-worker, Sally and I engaged in a conversation that focused on why her father, a military Chaplain was â€Å"passed up† for a recent promotion. During my conversation with Sally, she brought up that her father had been recently â€Å"passed up† for a promotion in the Armed Forces because of racial discrimination. I was not overly shocked that Sally would say something of this nature to me, given our background of hearty debates. Intrigued, I asked Sally to explain what she meant by â€Å"passed up† because of racial discrimination. Sally proceeded to explain to me that her father had been â€Å"overlooked† at his last promotion to help fill racial quotas in the military. Sally continued her explanation, stating that her father and his loss of a promotion was a direct result of Affirmative Action. She furthered her explanation that as the population of the military becomes more diverse, in her word...

Measurement of Time Spent Communicating Essay

The amount of time we spend communicating is outstanding. There have been multiple studies to find the actual amount of our waking lives spent communicating, and the percentage of time we spend in each division of communication. The article, â€Å"Measurement of Time Spent Communicating,† is the result of a communication study of employees of a research and development laboratory. The study was based on two techniques: direct observation, and questionnaires. How much time do people spend communicating at work? How much time do people spend using machines at work? This useful information can help to improve the amount of work done in a certain amount of time. If people spend more time communicating to get a job done, then our communication skills possibly need improvement. The talking people do is related with their work output. The same goes for machinery; if we spend more time in person-machine interaction, improving machinery would be the main advance to improving jobs. People were observed at one instance in time in offices of one person to five people, some at supervisory levels, laboratories, hallways, and conference rooms. The observation data was divided into to groups’ time spent communicating, and time spent working with equipment. These categories were subdivided in different types of communication activities, including face-to-face communication, telephone communication, reading, and writing, and different types of equipment uses, including lab equipment, office machinery, and an other category. Pre-tests showed the three trained clerks could classify the behavior of the employees reliably. Sampling moments were random and unbiased, only avoiding break times and everyone’s lunch, and are correspondent to the entire working day. The questionnaires were placed at the desks of all the people in the sampling areas, offices, and laboratories. The questionnaires were pre-tested to make sure the wording was understood, and the ordering of questions didn’t change the results. The employees were to answer seven questions all percentages that should add up to 100% of the working week. The questionnaires that were returned and did not add up to between 90% and 110% were disregarded. 4,000 questionnaires were distributed, and 2626, or 66%, were returned and usable. Overall, the common results of the observations and questionnaires were recognizable. The observation method is more accurate, and unbiased, so the main differences in the two sets of data are explained by people underestimating the time they spend communicating face-to-face, and overestimating the time they spend reading and writing. The questionnaire and observed data representing how much time is spent speaking on the telephone, working with lab equipment and office machinery, and other were relatively the same. Another observation is that the amount of time spent communicating depends on how many people are in the office. The fewer people, the more communication went on. This could be due to the fact that many one or two person offices were supervisory level, and therefore had to communicate to employees more often. All offices engaged in face-to-face communication more than in laboratories. Although, time spent working with equipment is only 13%, even though the research study population is a research and development laboratory. This leads us to the conclusion that communication with people, not equipment, is the center of activity for most professionals, administrators, clerks, secretaries and technicians.

Opposing Viewpoints Machiavelli versus Erasmus Essay

Machiavelli led us to a question that was continuously in disagreement. That question was â€Å"Is it better to be loved than feared, or vice versa† (p.392)? Machiavelli thought that one is to be loved feared. Nevertheless, at the same time it’s tremendously hard to achieve being both loved feared. Machiavelli believed that if one had to do without one of them that it would be a safer to be feared than to be loved. For example if a ruler was more loved than feared then if you served their men’s interest were also devoted to them they would promise you their blood, possessions, lives, children until you needed help because once you needed help you were on our own. If you’re more feared than loved then when you’re in trouble your†¦show more content†¦Erasmus believed in many characteristics of a good prince, a living similarity of God, who is at once good powerful. The prince has great goodness, which encourages him want to help a ll; his power allows him to do that. A good price must hold the life of each individual person more cherished than his own. He’s to work strive each every day night so that he can be the best for everyone. He’s to give incentives to all ‘good’ men he may not seek recompensation. He must look out for the well-being at great risk to himself. He is to remember that all of his wealth is in the hands of his nation. He’s to always be alert on watch so that all of his people may sleep without the fear of being invaded. The prince may not grant vacation to himself because he’s to always devote his life to peace of his country. He must do everything including the whole kit caboodle as well as allowing everything that can possibly bring never-ending peace to his country. In today’s world, I would have to say that the perspective of Erasmus is more modern contemporary. Just by rereading over all the characteristics that Erasmus as well as Machiavelli wrote, Erasmus’s is more comparable to what a ruler is supposed to be like in today’s society. Even though there are a few things in Machiavelli’s story that are comparable to today’s rulers in society, Erasmus had more things that were comparable. It is extremely difficult to say which