Sunday, May 17, 2020

In “The Secret Life of Bees” by Sue Monk Kidd we see a...

In â€Å"The Secret Life of Bees† by Sue Monk Kidd we see a young troubled Lily Owens who longs for answers about her mother and that maternal love which she never received. Lily blossoms from a fragile hurt little girl into and strong and independent young woman with the help of the Boatwright sisters. The major themes shown throughout the book are a longing for maternal love and the power and strength of female community. Throughout the story Lily has a void in her life which she so desperately needs filled and that void is her longing for maternal love and answers about her mother who died when Lily was only a young child. It is clear that Lily is unhappy in Sylvan where she lives with her abusive and unloving father T. Ray and after seeing†¦show more content†¦There is no love like a mothers love and even though Lily grew up without one she now has the love of all these amazing women in her life. The second theme shown throughout the novel is the power and strength of female community. When Lily escapes to the Boatwright house she meets the three strong and independent Boatwright sisters. It is there where Lily grows from a scared little girl to not only a stronger and more independent young lady but a more considerate and accepting human being, she grows into a better person. And it was Rosaleen’s strength to stand up to the racist men that gave Lily the strength to runaway from T. Ray and escape Sylvan. As she grows and learns the truth about her mother she accepts her flaws and as she matures and realizes why T. Ray is the way he is, because he is so hurt from Lily’s mother leaving him she accepts his flaws as well and knows that he really does love her. It is the strength of these women that gave Lily the strength and courage to grow and accept. Through this novel we see Lily grow, we see her come of age and mature. Her search for her mother lands her in a place she would have never expected to go but where she was always meant to be. She fills the void of her lost mother with all the amazing women she now has inShow MoreRelatedLiterary Criticism : The Free Encyclopedia 7351 Words   |  30 PagesOrigin 2 Plot outline 3 Examples 3.1 Precursors 3.2 17th century 3.3 18th century 3.4 19th century 3.5 20th century 3.6 21st century 4 See also 5 Notes 6 References 7 Bibliography 8 Further reading 9 External links Origin[edit] The term was coined in 1819 by philologist Karl Morgenstern in his university lectures, and later famously reprised by Wilhelm Dilthey, who legitimated it in 1870 and popularized it in 1905.[1] [6] The genre is further characterized by a number of formal, topical, and thematic

Wednesday, May 6, 2020

Dickens Use of Language and Structure to Build Up a...

Dickens Use of Language and Structure to Build Up a Picture of the Joy of Christmas Present I’m going to analyse stave 3 of a Christmas carol, Charles Dickens was born in Portsmouth in 1812. In 1836 Dickens published the first part in a serialisation called The Posthumous papers of the Pickwick club better known as The Pickwick papers. In 1843 he wrote his first and most famous Christmas story, A Christmas Carol. Victorians in those times, a lot of them lived in poverty, and they were lots of large families living in one house. It was in industrial era and most people worked in factories, which were very unhygienic, this really relates to Dickens life style when he was growing up. When he was growing†¦show more content†¦This is like a list and overwhelms the reader with good things. However Dickens then focuses on the appearance of the Christmas Present. In this description Dickens uses powerful words to exaggerate the qualities of the ghost. â€Å"Capacious†¦shining†¦dark†¦deep green†¦genial†¦sparkling†¦open†¦cheery†¦unconstrained†¦joyful.† By Dickens uses these words have a very big impact on the readers because it by using these words it creates a big picture of the story. Then Dickens finishes on describing the appearance of the ghost of Christmas Present. They then go to visit Bob Cratchit’s house, but on their journey they pass all sorts of people, rich, poor etc. They are all enjoying Christmas no matter what they have or haven’t got. â€Å"And so it was! God love it, so it was!† There is no quarrelling and bickering on Christmas day, well not according to Dickens. This really addresses the reader and involves them in the novel; Dickens here is making his own seasonal message about peace and good will to all men. When Scrooge and the ghost of Christmas present finally reach the Cratchit’s house they find them all having a good time, getting into the Christmas spirit, especially Mrs Cratchit who isShow MoreRelatedStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 Pagespermission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to 201-236-3290. Many of the designations by manufacturers

Wireless Networking and Related Technologies - myassignmenthelp.com

Question: Discuss about theWireless Networking and Related Technologies for Antennas. Answer: Abstract Antennas are essential tools when it comes to wireless communication. The communication systems need a means to convert electronic signals into the system to electromagnetic waves to be transmitted into free space. They are responsible for interconnecting the links involved between the free space and the transmitter and between the receivers and the free space for effective wireless communications. It is therefore not possible for successful wireless communication without thoroughly analyzing the existing antenna technologies before choosing the best as per the needs of the wireless system in the making. If the best antenna is selected regarding its operation, the wireless communication technologies expect a bigger success. The antennas are primarily categorized according to the technology they use and according to their application. The antennas in mobile industries may carry the future since most users in wireless communication technologies are opting mobile devices such as smartph ones and they majorly depend on them. Antenna technologies Based on the direction they radiate the electromagnetic waves; we have two broad categories. Every antenna will fall in either of the two categories. Directional antennas: These are antennas that radiate or receive electromagnetic waves in a specified direction based pattern. They are used when the direction of the other position is not arbitrary to maximize coupling to the electromagnetic field(Johnson, 1961). A good example is a Yagi-Uda antenna used as UHF and VHF frequencies. Omnidirectional antennas: They receive or radiate electronic, magnetic waves from all directions or to all directions. Omnidirectional antennas are best efficient when the position of the other station is not known. A good example is a vehicle antenna. Based on the way they operate; we have the following major types: Aperture: They are constructed with a dipole fixed inside a three-dimensional guiding structure often larger than the wavelength of an aperture responsible for emitting the radio waves. Figure 1: basic horn (Pyramidal) antenna concept. They are mostly used at microwave frequencies and above. A good example is the horn antenna which consists of a flaring metal attached to a waveguide. Monopole: They are similar to dipoles but with only one conductor. The one-rod conductor is fixed to ground or another artificial conductor. Then one side of the feedline of the receiver or the transmitter is connected to the conductor. A good example is a whip majorly used in a vehicle on portable radios and mobile devices such as the walkie-talkie. Their construction is also significantly simple since they just need the metal conductor. Dipole: They are antennas based on two metal rods or wires that can conduct electricity arranged Figure 2: Basic concept of a dipole antenna. In a symmetric way such that the feed line of the transmitter or receiver is attached to them. Antennae based on Dipoles include Yagi. These are used for long distance shortwave communications, television antennae, and point-to-point communication links. The antenna has gains which allow low strength signals to received, a directivity that minimizes interference levels can be easily fixed on poles and is easy to construct since all construction is done from rods. Another dipole is a corner reflector. It is a directional antenna used at UHF frequencies. It is made of a dipole mounted on a reflective metal screen joined at an angle. Its construction is similarly simplified. Travelling wave: These have extensive bandwidth due to non-resonant structures. Travelling of current in the antennas travel in one direction, unlike others where it bounces to and fro forming standing waves. Soon, Aperture antennas will become dominant in medium and long distance wireless links. Aforementioned is because unlike feed antenna, they can be used over a wide frequency range due to their structure of non-resonance. CDMA and FDMA multiplexing techniques. CDMA and FDMA are channel access methods that are used to allow one multi-point transmission medium to transmit for several terminals connected to it while they share its capacity. A multiplexing method allowing several data streams to use one communication channel is needed to produce a good channel access scheme. Media Access Control is used hand in hand with the multiplexing method to cater for assignment of multiplex channels and avoid collisions. It is also responsible for addressing. Frequency-Division Multiple Access and Code Division Multiple Access are therefore similar because they are both used for the mobile and wireless communications. Their aim to is similar, to allow access to channels by different terminals from the same multipoint transmission medium(Hongyi, 1999). Frequency-Division Multiple Access uses frequencies where Code Division Multiple Access uses a unique code for each transmitter. The Frequency-Division Multiple Access multiplexing is done based on the frequency divisions. The total bandwidth available to the system is taken and divided into smaller frequencies. The division ensures that the frequencies do not overlap and they are then assigned to the communicating phones. The frequency band of each data stream is therefore different, and they are assigned different nodes. The FDMA can be used both for analog and digital signals even though all users must share the frequency channel(Naoki Masaak). Each of the users sharing the frequency channel is only allowed to transmit at a single frequency. In Code-Division Multiple Access, the data rates of each of the transmitted bit streams are less than the radio spectrum used in Hertz. It is, therefore, possible to transfer several message signals in the same carrier frequency but with a different spreading code for each. The bandwidth, wide allowing sending of message signals on very weak noise to signal ratios. Unlike the FDMA, the bandwidth here is not divided, and therefore data can be freely sent to any frequency at any time by all the users. Latest advanced wireless technologies Wireless technology is in these times advancing at super levels. The users needs and demands are also rising propelled by the ease and comfort of using the wireless technologies. The technologies already in place spans across all electronic devices including printers, keyboards and mice, Speakers and headphone and display adapters. The devices in demand in the markets are those with integrated wireless technologies. 5G mobile networks: The 5G Cellular network spectrum is one of the latest advances in Wireless networking. 5th generation mobile networks are to give a higher density of mobile wireless networks and fast and reliable device to device communication. It aims at low battery communication and minimal latency. This uses cellular antenna such as Dipole antennas and parabolic reflector antennas to offer data rates of up to 100Mbps in metropolitan areas and up to 1Gbps on an office setup(Osseiran, Monserrat, Marsch, 2016). 5G is giving more bandwidth to all users which are an advantage. Users will have faster access to data. The frequency spectrum, on the other hand, will be an issue due to overcrowding of space not forgetting the smaller coverage expected due to the bigger bandwidth(LaPedus, 2016). GPS: The Global positioning system is another significant advancement in Wireless technology. It provides remote geolocation and time information to the requesting user(Satellite navigation, 2002). It is based on ground based radio-navigation systems. It forms a basis for other beneficial wireless technologies such as autonomous driving which depend on the GPS(Russell Hasik, 2002). The method is advantageous in many ways including its accuracy and the relieved stress of carrying and using maps. It is, however, a disadvantage when it leads a user into an unsuitable path since it does no evaluation of external factors and set it up while on a critical work such as driving. GPS antennas employ circular polarization and helical antennas with different slots. Wi-Fi and Bluetooth: (Lemstra V., 2010) see Wi-Fi as a technology that allows the setup of a Wireless Local Area Network that can connect devices and allow sharing of information. (Kewney, 2004) States that Bluetooth technology allows the exchange of data over short distances over connected devices. Bluetooth antennas operate at frequencies of 2.4 GHz to 2.485 GHz. Satellite communication: Satellite communications operate by amplifying radio telecommunication signals using a device that creates communication channels between transmitters and receivers(Bruno, 1998). Offer a high-speed platform for information sharing although their in-flight communications on airplanes are a disadvantage. These use a variety of antennas based on the applications. The cellular antennas used by the mobile phones and 5G wireless communication Technology will become the dominant players in the future. This is because they operate on a platform where users are increasing day by day. Most people long for technology and mostly begin with cellular networks, e.g., in Mobile phones. References (n.d.). Bruno, P. (1998). Satellite-Based Cellular Communications. McGraw-Hill. Hongyi, F. G. (1999). Capacity Comparison of CDMA and FDMA/TDMA for a LEO Satellite System . 1069-1073. Johnson, R. C. (1961). Antenna Engineering Handbook. McGraw-Hill. Kewney, G. (2004, November 16). High speed Bluetooth comes a step closer. Retrieved from www.newswireless.net LaPedus, M. (2016, June). Waiting for 5G Technology. Retrieved from www.semiengeneering.com/waiting-for-5g-technology/ Lemstra, W., V., H. (2010). The innovation Journey of Wi-Fi. Cambridge University press.(n.d.). Naoki, I., Masaak, i. K. (n.d.). Comparison of CDMA and FDMA/TDMA in non-GEO Satellite Systems. Osseiran, A., Monserrat, J. F., Marsch, P. (2016). 5G mobile and wireless communication technology. Cambridge University Press. Russell, M., Hasik, J. (2002). The precision revolution. PS and the future revolution of aerial warfare. . Naval Institute Press. Satellite navigation. (2002). In N. Bowditch, The American Practical Navigator. United States.