Electrical Fundamentals Essay

Electrical Fundamentals Essay Electrical Fundamentals Essay Electrical Fundamentals Experiment 1 Measuring Test Instruments Practical Background and Introduction Objective: The main objective for this experiment is making sure the electrical equipment is safe to use. To avoid from electric shock.The experiment is divided into two parts- - Insulation Resistance Test and Earth Continuity Test. Measuring the values by using Multmeter, Insulation Tester and Power Factor Meter. Single Phase Socket Outlet is the type which is found most often in houses. The other type, three-phase, is usually only found in industrial or possibly commercial locations. A single phase power socket is the type of socket that people are most familiar with. Although designs of these vary from country to country, they consist of three sockets for a plug: a live conductor (where current comes from) a neutral conductor (where current goes to) a bonding conductor (bonds chassis for some devices to system's low potential, i.e. ground) A single-phase power socket differs from a poly-phase (e.g. a three phase) socket because a single phase system consist of only 1 phase (hence the name). A Three phase socket would need conductors for phases A, B, and C, and perhaps a neutral conductor depending if the three phase system is configured in delta or wye. It should also be noted that, especially in North America, that 240V, outlets are also single-phase. These outlets are also only single phase.(From Ref No.1) Industrial (Three Phase) and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets. They are generally used in polyphase systems, with high currents, or when protection from environmental hazards is required. Industrial outlets may have weatherproof covers, waterproofing sleeves, or may be interlocked with a switch to prevent accidental disconnection of an energized plug. Some types of connectors are approved for hazardous areas such as coalmines or petrochemical plants, where flammable gas may be present. Almost all three-phase power plugs have an earth (ground) connection, but may not have a neutral because three-phase loads such as motors do not need the neutral. Such plugs have only four prongs (earth, and the three phases). An example of a socket with neutral is the L21-30 (30 A) and the L21-20 (20 A) both of which have five pins (earth, neutral, and X, Y, Z phases). While some forms of power plugs and sockets are set by international standards, countries may have their own different standards and regulations. For example, the colour-coding of wires may not be the same as for small mains plugs.(From Ref No.2) Insulation Resistance Test, for this test values are not direct shown us. The resistance value is come from Ohm’s Law- - Use the values of known voltage divide the values of the current which we measured. Earth Continuity Test, is for checking the connection inside the socket. The qualified socket is suppose to have 0.1 ohms resistance which means no resistance though connection. Multimeter This is the equipment we used during the experiment. A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value. A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can

Explore the Local Group of Galaxies

Explore the Local Group of Galaxies Our planet orbits a star inhabiting an immense spiral galaxy called the Milky Way. We can see the Milky Way as part of our night sky. It looks like a faint band of light running through the sky. From our vantage point, its tough to tell that were actually inside a galaxy, and that conundrum had astronomers puzzled until the early years of the 20th Century. In the 1920s, astronomers discussed strange spiral nebulae they were seeing in photographic plates. Theyd been known to exist since at least the mid 1800s, when Lord Rosse (William Parsons) began finding these objects through his telescope. By the early 20th century, some scientists held the view that these spirals are simply part of our own galaxy. Others maintained that they are individual galaxies outside the Milky Way. When Edwin P. Hubble observed a variable star in a distant spiral nebula and measured its distance, he discovered its galaxy was not part of our own. It was a momentous finding and led to the discovery of other galaxies in our nearby neighborhood, including the members of the Local Group. An artists concept of what our galaxy looks like from outside. Note the bar across the center and the two main arms, plus smaller ones. NASA/JPL-Caltech/ESO/R. Hurt The Milky Way is one of about fifty galaxies in the group. Its not the largest spiral; that would be the Andromeda Galaxy. There are also many smaller ones, including oddly shaped  Large Magellanic Cloud and its sibling the Small Magellanic Cloud, along with some dwarfs in elliptical shapes. The Local Group members are bound together by their mutual gravitational attraction and they stick together quite well. Most galaxies in the universe are  accelerating away from us, driven by the action of dark energy, but  the Milky Way and the rest of the Local Group family are close enough together that they stick together through the force of gravity. A graphical representation of the Local Group of galaxies, including our own. It contains at least 54 individual members. Antonio Ciccolella, CC BY-SA 4.0 Local Group Stats Each galaxy in the Local Group has its own size, shape, and defining characteristics. The galaxies in the Local group take up a region of space about 10 million light-years across. And, the group is actually part of an even larger group of galaxies known as the Local Supercluster. It contains many other groups of galaxies, including the Virgo Cluster, which lies about 65 million light-years away. The Major Players of the Local Group There are two galaxies that dominate the local group: our host galaxy, the Milky Way, and the Andromeda galaxy. It lies some two and a half million light-years away from us. Both are barred spiral galaxies and almost all of the other galaxies in the local group are bound gravitationally to one or the other, with a few exceptions. Andromeda and the Milky Way are the two largest members of the local group. In the distant future, they will be colliding. This artists concept shows that collision from the point of view of a planet in the Milky Way. Credit: NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger Milky Way Satellites The galaxies that are bound to the Milky Way galaxy include a number of dwarf galaxies, which are smaller stellar cities that have spherical or irregular shapes. They include: Sagittarius Dwarf GalaxyLarge and Small Magellanic CloudsCanis Major DwarfUrsa Minor DwarfDraco DwarfCarina DwarfSextans DwarfSculptor DwarfFornax DwarfLeo ILeo IIUrsa Major I DwarfUrsa Major II Dwarf Andromeda Satellites The galaxies that are bound to the Andromeda galaxy are: M32M110NGC 147NGC 185Andromeda IAndromeda IIAndromeda IIIAndromeda IVAndromeda VAndromeda VIAndromeda VIIAndromeda VIIIAndromeda IXAndromeda XAndromeda XIAndromeda XIIAndromeda XIIIAndromeda XIVAndromeda XVAndromeda XVIAndromeda XVIIAndromeda XVIIIAndromeda XIXAndromeda XXTriangulum Galaxy (third-largest galaxy in the local group)Pisces Dwarf (unclear if it is a satellite of the Andromeda Galaxy or the Triangulum Galaxy) Other Galaxies in the Local Group There some oddball galaxies in the Local Group that may not be gravitationally bound to either the Andromeda or the Milky Way galaxies. Astronomers generally lump them together as part of the neighborhood, although they are not official members of the Local Group.   The galaxies NGC 3109, Sextans A and the Antlia Dwarf all appear to be gravitationally interacting but are otherwise unbound to any other galaxies. This member of the Local Group is called NGC 3109, as seen by the Galaxy Explorer spacecraft. It may be interacting with another nearby galaxy. NASA/GALEX   There are other nearby galaxies that do not seem to be interacting with any of the above groups of galaxies. They include some nearby dwarfs and irregulars. Others are being cannibalized by the Milky Way in an ongoing cycle of growth that all galaxies experience.   Galactic Mergers Galaxies in close proximity to each other can interact in colossal  mergers if conditions are right. Their gravitational pull on each other leads to a close interaction or an actual merger. Some galaxies mentioned here have and will continue to change over time precisely because they are locked in gravitational dances with each other. As they interact they can rip each other apart. This action - the dance of the galaxies -   significantly alters their shapes. In some cases, the collisions end up with one galaxy absorbing another. In fact, the Milky Way is in the process of cannibalizing a number of dwarf galaxies.   A group of interacting galaxies as seen by Hubble Space Telescope. NASA/ESA/STScI The Milky Way and Andromeda galaxies will continue to eat up other galaxies as time goes by. This appears to be what has happened to create most (if not all) of the galaxies we see today. In the distant past, smaller ones merged to become larger ones. Large spirals then merge and create ellipticals. Its a sequence that has been observed throughout the evolution of the universe. Will Mergers in the Local Group Affect Earth? Certainly the ongoing mergers will continue to reshape the Local Group galaxies, changing their shapes and sizes. The ongoing evolution of galaixes will almost certainly affect the Milky Way, even as it goes about gobbling up smaller galaxies. For example, theres some evidence the Magellanic Clouds might merge with the Milky Way. And, in the distant future  Andromeda and the Milky Way will collide to create a large elliptical galaxy that astronomers have nicknamed Milkdromeda. This collision will commence in a few billion years and radically alter the shapes of both galaxies as the gravitational dance commences. Fast Facts: The Local Group The Milky Way is part of the Local Group of galaxies.The Local Group has at least 54 members.The largest member of the Local Group is the Andromeda Galaxy. Sources Frommert, Hartmut, and Christine Kronberg. â€Å"The Local Group of Galaxies.†Ã‚  Messiers Telescopes, www.messier.seds.org/more/local.html.NASA, NASA, imagine.gsfc.nasa.gov/features/cosmic/local_group_info.html.â€Å"The Universe within 5 Million Light YearsThe Local Group of Galaxies.†Ã‚  The Hertzsprung Russell Diagram, www.atlasoftheuniverse.com/localgr.html. Edited by Carolyn Collins Petersen.

Zappos Case Study Example | Topics and Well Written Essays - 250 words

Zappos - Case Study Example Customers are able to track the inventory of Zappos online. 2. Zappos creates superior customer experiences through do the unexpected. The company believes that customers who are shocked by the service that they receive will want to stay loyal to the brand for a long time. This also has a knock-on effect of picking up new customers who hear of the service quality offered by Zappos. Word-of-mouth marketing is an important tool that Zappos can use to attract new customers. 3. Quality management is an important part of the sales process for Zappos because the customer has a minimum demand for service. Zappos can only meet that demand by making sure that its customers are satisfied with the products they receive. Secondly, process design is also another important part of the service on offer because quality goods and services can only be offered to customers if the right inputs have been included in designing, procuring, and marketing the product or service effectively. Thirdly, service encounter design forms a crucial part of the Zappos experience because interactions between employees and customers can determine the success of the brand as a whole. Also, whenever a customer is not satisfied with the level of service shown by Zappos, the company needs to go beyond the normal level of service to regain the trust of the

Organizational Behavior and its Impact on Corporate America Research Paper

Organizational Behavior and its Impact on Corporate America - Research Paper Example By adding more emphasis on interpersonal communication and communication clarity, The Home Depot serves as a benchmark for other industries in similar markets. Organizational Behavior and its Impact on Corporate America Introduction When assessing an organizational environment worthy of being declared a leader in positive organizational behavior, no example is more relevant than The Home Depot. The Home Depot ranked #29 in the Fortune 100 list of best companies due to its commitment to customer service excellence, employee participation schemes, and a variety of reward programs that foster collaboration, motivation, and commitment from its many employees and managers. In 2010, The Home Depot earned $6.6 billion in revenues (CNN Money, 2011), due to its reputation as a service leader and the ability to foster harmonious work teams dedicated to meeting the mission and vision of the organization.     These factors include the establishment of multiple reward schemes, improving inter personal communications and clarity between many different ranks of authority, setting corporate social responsibility efforts, and providing ample feedback systems to give recognition to employees who succeed and meet corporate goals. Important Elements of Organizational Behavior In order to gain employee and management commitment, it is first necessary to establish team membership, something especially true at The Home Depot whose cornerstone is employee involvement and participation. â€Å"For a team to develop, its members must want to belong to the team and come to identify with the team† (Bushe & Coetzer, 2007, p.185). When new employees enter the organization, they come into employment with their own personal need, goals, and ambitions, thus effective leadership must work diligently to bring employees and managers into the team fold by creating a new social identity. â€Å"People strongly identified with a group can even be willing to sacrifice personal needs for the betterment of the group† (Bush & Coetzer, p.186). This is the foundation of The Home Depot’s employment strategies: To ensure commitment and a transformation from pre-existing values to employees who are committed to meeting Home Depot’s mission and goal for excellence in service delivery. Group affiliation is crucial to success in profit and service delivery at Home Depot since service is the foundation of its core values of business operations. Gaining commitment related to teamworking is necessary in an environment where customers are considered the most important resource to corporate success and the business must rely on direct employee/customer interventions in order to generate higher sales volumes and satisfy customers of widely different socio-economic demographics. Building team focus is the most primary organizational behavior at The Home Depot that continues to lead to its position as a market leader in its industry. How is this accomplished in the or ganization? The first step is to ensure that there is a perception of inclusion and affiliation.  Ã‚  

Location Analysis Of A Franchise Restaurant :: essays research papers

Location Analysis of a Franchise Resturaunt Problem Statement: Boston Pizza International Inc. is a Canadian owned and operated restaurant. It has many facilities in Canada and has opened facilities in the United States and in Southeast Asia. Boston Pizza is penetrating further into the Canadian market and is opening at a new location on 8th Street in Saskatoon. The chosen location has been the home of many previous restaurant failures. It seems odd that any restaurant would want to open in a location which has proven to be unsuccessful. What characteristics does Boston Pizza have that other restaurants don't have that may allow this location to be successful? This new location will be the second Boston Pizza franchise in Saskatoon, complimenting the facility operating on 50th Street. Will the market areas of these two restaurants overlap? * * * * * The early beginnings of this restaurant occurred in Edmonton, Alberta. In 1963 the first Boston Pizza and Spaghetti House opened. The name of the restaurant is seemingly odd because Boston is the name of a city in the United States, and has nothing to do with a pizza restaurant located in Edmonton. Ron Coyle, the original owner, named the restaurant 'Boston' because the Boston Bruins NHL hockey team was the favorite of the Edmonton area in the 1960's and he wanted his business to use sports as a promotion. Another reason, which may have been more of a coincidence, was that his accountant's surname was Boston ("only way", 37). Boston Pizza and Spaghetti House became a popular restaurant and in 1968 it began to operate as a franchise. In mid-1968, Jim Treliving, a former drum major for the RCMP, and his friend Don Spence bought the franchising rights for British Columbia with the exception of Vancouver. They opened their first unit in Penticton, British Columbia, and in the first year of operation the pizza restaurant grossed $52,000 and the nightclub which was co-located with the restaurant grossed $80,000 (Cameron, 16). Meanwhile, franchise units opened in Edmonton, Winnipeg and Vancouver. As the pizza chain grew, Treliving and George Melville (who had become involved with Treliving's restaurants as a financial planner) became involved in real estate ventures in Hawaii and the Okanagon Valley and also in oil investments in British Columbia (Cameron, 16). In 1983, these two men purchased Boston Pizza Spaghetti House from the original owner Ron Coyle for $3 million. This money was raised from private lenders ("recipe is simple", 16). During that same year, the headquarters of Boston Pizza was moved from Edmonton, Alberta to Richmond, British Columbia where it is found today.

Reflective Assignment Essay

This essay is a reflective account on my experience within the introductory period of my practice when caring for a patient. The essay will give the definition of reflection. This reflective essay will help me demonstrate how my experience in practice has helped me achieve one of the learning outcomes in my learning plan, (appendix 1). Driscoll (2000) will be used as a reflective model. The essay will explore what (description of events) so what (analysis) and now what (action plan). This essay is going to reflect on the importance of good communication with patients. Names in this essay have been changed, to respect the confidentiality of the patient and other healthcare professionals (NMC 2008). Reflection is ‘reviewing experience from practice so that it may be described, analysed, evaluated and consequently used to inform and change future practice’ (Bulman and Schutz, 2008: page 6). I was placed in an acute admissions ward at a Mental hospital. The ward is an admission ward for assessment and it admits all patients between 16-65 years for psychiatric treatment. What happened was one morning in this ward a male patient, Joe was brought in by the police, detained under Section 2 of the Mental Health Act 1983. I was assigned to admit the patient; NMC 2010a states that it is a requirement of nurses to have up-to-date and accurate records of patients. When my mentor Sarah, asked me to admit the patient, I agreed to do the admission process even though I felt I was not confident to do it, I had only observed Sarah admit a patient once. I felt I would be deemed incompetent if I turned down the opportunity to admit this patient even though I was not really confident in doing so I did not want to allow anything to work against me on this placement. I went to Joe and attempted to inform him that I was to take him through the admission process as well as to check his baseline observations. He looked at me and as if taking no notice of what I had just said started talking about how his wife betrayed him, he went on and on talking about his wife. I repeated myself but he kept on talking about his wife. In my head I thought he was just being difficult and it was time for me to check the observations of other patients. I repeated myself again telling him what I intended to do and this time Joe jumped from his sit and came very close to my face. Whilst standing very close to my personal space he shouted loudly saying â€Å"I am not going to talk to you monkeys until I speak with my GP and my Lawyer†, he then pushed me to the side and he walked off. In a state of shock I went back to Sarah and explained everything that had happened. This incident left me feeling confused and incompetent; I blamed myself for failing to perform what appeared like a simple task that my mentor had asked of me. Sarah sat down with me and explained to me that the patient was well known having been admitted on the ward several times before and is familiar to most of the staff. She thought Joe was behaving in such a way because I was new to him and also the fear of just being in a hospital away from his family contributed to his presentation. According to Chapman and Kimberly B. (2009) most patients experience the stress of being hospitalized and good communication has been identified as one of the tactics which will relieve them. Sarah took me with her to Joe, she wanted me to observe how closely she communicated with him and made him to relax. When we approached him he pointed at me and asked, ‘who is she? ’ Sarah introduced me to Joe then she asked him to come to a separate room with us. Surprisingly to me Joe did not refuse, Sarah spoke with him in an assertive but calm manner, she stated to him the importance of having his physical observations checked, this was to ensure that Joe understood the procedure for him to be able to give us his consent (NMC 2008). Joe was very co-operative and the admission process went on smoothly. I made sure I documented the procedures clearly. The second stage of Driscoll (2002) is the analysis of the events. Looking back at the way I had communicated with Joe and realized that might have contributed to the way he reacted. According to Sheldon (2004) ‘communication in nursing is a sharing of health-related information between a patient and a nurse, with both participants as sources and receivers’. Sully and Dallas (2010) also points out that communication is not just one way, it is a two way process. I realised that my communication with Joe was just one way. He was saying something to me, instead of listening I was telling him something and vice versa. No one was receiving information we were both encoding words that were not being decoded by any one. Sully and Dallas (2010) highlight how communication has need for a sender, a messenger, a receiver and a channel. When Joe asked Sarah, who I was, I realised that I had not introduced myself to him; this could be one of the reasons why he did not want to cooperate. Delvaux et al. 2004 states that to promote patient satisfaction ensure that the patient understands who you are and your specific role. Also Joe might have not understood me because when l said I wanted to check his physical observations he looked puzzled, he might not have known what an admission is nor what physical are. It was important for me to establish mutual understanding; this would have improved the outcome and help reduce his stress, (Fellowes et al 2004) From this experience l learnt that listening is an important skill to have in communication. Joe perhaps became angry about not being listened to, he did not feel valued. I realised that I should have listened to him and shown him some empathy. According to Rogers (1967) ‘empathy is the ability to feel a continuing desire to understand the client’s feelings and communications as they seem to him at the moment’. Roger (1967) also highlights that communication occurs when we listen with understanding. Just listening and trying to understand what Joe was saying could have helped me establish a therapeutic understanding with him. When Sarah was communicating with Joe she showed she was not only listening but also empathizing with him. When he mentioned about his wife betraying him Sarah was nodding her head to show she understood what he was saying. Words and language that we use sometimes only play a small part in passing on any message compared to body language, facial expressions and gestures. These will have an impact on the total sum of communication. (Hargie and Dickson 2004). Thirds stage of Driscoll is the Now what, which is my action plan, Since effective communication is extensively regarded as a key determinant of patient satisfaction, compliance and recovery it is important for me to have the suitable communication skills and to be adequately confident to use them in my clinical practice. From now when I am a student to the time I qualify my responsibility lies in improving my knowledge and skills on good communication and to be a good role model to others. Communication is a skill that I have to learn and it requires me to continually improve. In order for me to improve on my communication skills when I get back to my placement I need to have the commitment to listen more to what the patients are saying and to understand them fully. I also need to show them that I am listening and understanding them I must communicate this understanding to the patient. (Sully and Dallas, 2010). In my learning plan I stated that in order to improve my communication skills I must learn from my mentor and other health care professional as well as to research by reading more on communication. This incident has taught me that I can never say because I have been reading and learning from my mentor my communication skills are perfect. I am still learning on communication, it’s an ongoing process so I will still need to use my learning plan as well as all the information I have learnt from this incident as my primary plan. If my communication skills are well developed I will be able to manage situations now as a student as well as in the future when I qualify. Being able to manage situations can provide greater job satisfaction and it also reduces stress. (Dougherty, L. and Lister, S. 2011) In conclusion my experience taught me that communication is not just about talking, it involves, listening, looking and understanding what’s being said. Good communication builds confidence and understanding between nurse and patients and works well in improving their relationship. Communication is the basis of the relationship between the nurse and other members of the multi disciplinary team. If ever I get another opportunity to admit a patient I will start off by introducing myself and make sure that the patient understands what I am saying by giving him the opportunity to ask questions. I also learnt that if I am not confident in doing something I should talk to my mentor or any senior member of staff present and be sure on how to proceed with the allocated task. What I liked is on the same day another patient came and I was asked to do admit another patient again and I managed to do it confidently and the patient was very co operative.

Cultural Differences Of Math Performance Linguistic...

Cross Cultural Differences in Math Performance: Linguistic Influence on Development in Eastern and Western Children Christina Jeon 999910967 PSY440H1 Introduction Various surveys and cross cultural studies examining children s mathematical achievement around the world have shown, fairly consistently, that Asian students continue to perform better than Western students in mathematics (Mark Dowker, 2015; Paik, Gelderen, Gonzales, Jong, Hayes, 2011). Studies have also indicated that this distinct gap in performance begins to show even before children have had any kind of formal schooling (Mark Dowker, 2015). This has only served to further reinforce the stereotype that Asian people are naturally good at math; there†¦show more content†¦Despite this line of thinking, which has been suggested for at least one to two hundred years, there is new evidence to indicate that mathematical development in children is more complicated than first thought (Mark Dowker, 2015; Dowker Roberts, 2015). It also suggests that language plays a slightly different role in the arithmetic learning than was previously hypothesized (Mark Dowker, 2015; Dowker Roberts, 2015; Paik et al., 2011). Linguistic Influence on Mathematics A wide range of cross cultural studies have been done to examine the degree of influence that language has on the development of mathematical skills, with varying results (Mark Dowker, 2015; Dowker Roberts, 2015; Paik et al., 2011). Recent cross cultural research has painted a very different picture of the extent that language truly influences the development of mathematical skills in children as they enter school (Mark Dowker, 2015; Dowker Roberts, 2015, Paik et al., 2011). LT has been found to have more specific influences on learning mathematics than the broad pervasive effect it was previously thought to have (Mark Dowker, 2015; Dowker Roberts, 2015). Studies comparing children of different ethnic backgrounds, have shown that East Asian children tend to outperform American children or children from other Western countries (Mark Dowker, 2015; Paik et al., 2011). In a study comparing British children with Chinese children from Hong Kong, i t was