Adversity Essay Example for Free

Adversity Essay I woke up at 11 am feeling refreshed. I hadn’t slept in since my family had started on our road trip to Canada. We were finally in Calgary and were leaving for home the next day-A good 22-hour drive. I got up quickly from my bed and jumped over my laptop charger. A disorienting head rush suddenly came upon me and I felt dizzy. I saw the stairs briefly and then it seemed like I was tumbling. When I could finally think again, I realized that my parents were in panic and I was surrounded by blood. Turned out, I fell right into some glass and as I would later find out, it had cut an important tendon in my shin. I was rushed to the ER and got surgery to fix my tendon. I asked the doctor to take some pictures of my leg right before I was sedated. After the surgery, a huge temporary cast was put on my leg and I was given crutches with which I could hobble around. Now came the 22-hours in a car with my injured leg. Luckily they weren’t as bad as I had thought they would be. Finally I was home. My friends visited me and were aghast at the size of my cast and the pictures of my leg! They thought I was just joking and wasn’t really injured. I had to spend 6 weeks in my cast. Six grueling weeks during which all I did was watch movies and tv shows on my laptop. My whole summer passed me by and I couldn’t do anything. My friends play basketball in the heat, thoroughly enjoying themselves while I watched them wistfully. Time went by slowly but finally I got my cast off only to find out that my tendon was too weak to walk on so I had to endure two weeks in a black boot. It was still summer and because my boot absorbed sunlight, my foot often smelled and had heat sores on it. I almost preferred my cast to this hell. Eventually my boot came off too. I could finally walk! I was sent to six weeks of physiotherapy where I found out that I probably wouldn’t be running or jumping for another 6 months almost. Well, at least I didn’t have to run miles for PE. I have only three more months now and I am optimistic. Since I can’t run, I started working on my biceps and now I can show them off. Soon I will be running as fast as the wind and touching the sky with my perfect two legs. That day cannot come fast enough.

Bluetooth Connection GFSK

Bluetooth Connection GFSK BACKGROUND OF BLUETOOTH TECHNOLOGY: Bluetooth was originally formed by the following five entities: IBM INTEL ERICSSON NOKIA TOSHIBA The initial five have grown to well over a thousand companies at this point and the number is increasing. Though Bluetooth is not quite as popular as 802.11, there are number of applications for a wide array of divergent wireless devices. For interesting background where exactly Bluetooth get its name? Contrary to what your dentist might think it is not from eating blueberries. The actual origin of this term is formed from a tenth century Scandinavian king whose name was HARALD BLUETOOTH. The connection is that in his real life he managed to unite several disparate kingdoms under one area. The idea was to make Bluetooth encompass a kingdom of different devices and to create a convergence of many different devices under the umbrella of one global specification. 1.2 WHAT IS BLUETOOTH WIRELESS TECHNOLOGY? Bluetooth wireless is an open specification for a low-cast , low power, short-range radio technology for ad hoc wireless communication of voice and data any where in the world. Lets examine each of these attributes An open specification means that the specification is publicly available and royalty free Short range radio technology means device can communicate over the air using radio waves at a distance of 10 meters. With higher transmission power the range increases to approximately 100 meters. Because communication is with in a short range, the radios are low power and are suited for portable, battery-operated devices. Bluetooth wireless technology supports both voice and data, allowing devices to communicate either type of content 2. BLUETOOTH MODULATION 2.1 Modulation Introduction Bluetooth uses Gaussian frequency shift keying (GFSK). More explicitly, Bluetooth 0.5 BT Gaussian filtered frequency shift keying (2FSK) also referred to as binary frequency shift keying (BFSK) at one M symbols/s with a channel spacing of 1MHz. Since only two frequencies are used one bit is one symbol (i.e. one indicates a positive frequency deviation (normally 157.5 KHz) from the carrier, and a zero indicates a negative frequency deviation (normally 157.5 KHz) from the carrier). The figure shows that amplitude versus time as well as constellation diagram plot of 2FSK modulation that is used for Bluetooth. The frequency deviation range is between 140 175 KHz. 2.2 Summary of Bluetooth modulation requirements To receive Bluetooth qualification, a radio must have the following modulation characteristics: GFSK with BT at 0.5 Symbol rate of 1 mega symbols per second (Ms/s), corresponding to a data rate of 1 Mb/s modulation index beta between 0.28 0.35 Binary 1 with a positive fd and 0 with a negative fd Symbol timing better than +20, -20 parts per million (PPM) Zero crossing error not greater than 1/8 of a symbol period The fd corresponding to a 1010 sequence to be at least 80 % of fd corresponding to a 00001111 sequence Minimum fd equal to 115 KHz Most of the previous modulation characteristics are self explanatory except perhaps the last two. If the modulation index is between 0.28 0.35, then equation 3.18 tell us that the corresponding fd must be between 140 175 KHz. This can be considered a â€Å"steady state† fd for a long sequence of binary ones or zeroes. Due to the ISI inherent in GFSK its possible that fd may not reach its maximum value for a binary sequence that alternates between 1 0. The specification requires that fd under these conditions reach at least 115 KHz, which is about 80 % of the minimum steady state fd of 140 KHz. 2.3 Bluetooth Data Rates and Data Packets The theoretical maximum data rate is 1 Mbps, but due to overhead, the maximum realizable asymmetric data rate is reduced to 723.2 Kbps. This is also a bit misleading because the reverse link has a much lower data rate. The table shows is a summary of the possible data rates for the various packet sizes. The information is transmitted in a packet in a time slot. Each time slot corresponds to an RF hop frequency. A packet of information can be transmitted in one time slot, three time slots, or five time slots. Naturally, a five slot packet carries more information than a three slot packet, which carries more than a one slot packet. Data high rate (DH) achieves higher data rates by using less error correction in the packets. Data medium (DM) rate achieves a lower bit error rate probability by using more error correction in the packets. A Bluetooth packet is shown in the figure. 2.4 Bluetooth Modulated Signal A modulated signal can be denoted as: Where fc is the carrier frequency, T is the bit period, h is the modulation index and x(t) is the input of the modulator. The above equation can be viewed as the output of a voltage controlled oscillator with an input of x(t). In FSK modulation, x(t) is a binary signal whereas in GFSK modulation, the binary signal is first passed through a low pass Gaussian filter to produce x(t). This is shown in below figure. GFSK modulation is determined by two parameters: the modulation index (h) and the bandwidth of the Gaussian filter. The Gaussian filter is usually characterized by the bandwidth-time product (BT), which is equal to the 3-db bandwidth of the Gaussian filter (B) times the bit period (T). In Bluetooth the bit rate is 1Mb/s, BT is 0.5 in the modulation index varies from 0.28 to 0.35, the figure above shows the simulated spectrum of a Bluetooth signal. Note that the well known Gaussian minimum shift keying (GMSK) is a special case of GFSK in the modulation index 0.5. 2.5 Frequency Hopping The physical connection of Bluetooth uses frequency hopping at 1 MHz hops at the actual carrier is spread spectrum modulated. This is known as frequency hop spectrum and is used to improve immunity from interference mainly from IEEE 802; WiFi WLAN shares the same spectrum as other users of the ISM band for example transitorily operated microwave ovens. There is a fundamentally sound reason for this approach. WLANs occupy significantly more bandwidth than 1 MHz and employ SS techniques, in which a pseudo-random code is used to modulate the information transmitted. At the receiver the same pseudo-random code has to be available to de-modulate it successfully called co-relation. As a result, many WLANs using different pseudo codes can transmit simultaneously without mutual interference. The Bluetooth frequency-hop system appears as an un-correlated noise like signal to a WLAN receiver and what is more its signal energy is spread over the entire band of the WLAN by the de-correlated demodulation process. SO in practice mutual interference amounts only to a raised noise floor for both systems. A raise noise floor simply reduces the available carrier to noise and hence reduces the range possible. This is the main effect of mutual interference. An exception can occur when signals are so strong because of the close proximity of the antenna s, that they overwhelm a receiver. Bluetooth frequency rate is chosen to be 1600 hops per second with a 625 us dwell time per hop. The minimum dual time of 625 us corresponds to a single time slot. Part of this hop timing is taken up by the guard time 220 us allowing the hardware based frequency synthesizer time to settle. The transmission channel is derived from the time slots, spread over 79 or 23 frequencies. The frequency hoping scheme uses time division multiplexing (TDMA), as illustrated in the figure, where the frequency step n=1MHz. 2.6 Piconets A piconet is formed by two or more devices discover each other and begin to communicate. A piconet can have up to eight devices, with one device acting as a master and the rest acting as slsaves. The first device initiates transmission becomes the master, although the specification provides for a master and slave unit to exchange roles. A specific frequency-hopping sequence is used by all devices within each piconet. The figure shows the simplest example of a piconet. In the figure, a cell phone is downloading the address book and telephone number information to the users laptop. In this example the laptop acts as the master. The application software running on the laptop contacts the cell phone when it is within range, and requests that it synchronize its database with the one stored on the laptop. As stated earlier a single piconet can have up to eight devices. The reason for this limit is simple: The address is only three bit long. This means that in binary only the value of 0 7 can be stored in the address field. The master has no address but zero is reserved for broadcast messages; so the only addresses remaining for use by slaves are 1 7. However, a device can participate in two different piconets called a scatternet. The figure shows an example of a larger piconet, in which one master controls multiple slaves in a piconet. You can see that its possible to link various devices in a piconet. You can download digital images from your digital camera to the laptop, use more than one Bluetooth-enabled cell phone to place voice calls and even contact a personal digital assistant PDA to the laptop to exchange information. Another interesting thing to note in this figure is that you can also use a single connection to the internet without having to have a direct cable connection to the modem or broadband connection. 2.7 Scatternets A device can be master of only one piconet. The device can, at the same time, also be a slave in another piconet that is within range. A slave can also participate in two different piconets that are within its range. However, because the master device determines the hoping pattern used for a piconet, a device cannot be a master of more than one piconet. An example of a simple scatternet is shown in figure. In this figure, a laptop computer communicates with devices in both piconets. Note that the laptop is a slave in both piconets. It is possible, however, for the laptop to be a master in one piconet and a slave in another (as shown in the figure). When a device is member of two piconets it keeps track of both frequency-hoping patterns and occasionally listens in on the correct frequency on each of the two piconerts so that it can stay in touch with both piconets. A master device transmits a packet to its slaves occasionally to maintain the link, base band on negotiations between the master and its slave devices. Thus, a device that is a member of two piconets must listen for these transmissions (or make them if its the master in one piconet) within the time frame negotiated for each of the piconets of which it is member. The above explanation can be understand better with the below figure. Bluetooth transmitter consists of CODE MAPING PFD BALUN AMPLIFIERS AMPLIFIER DETECTOR CHARGE PUMP T/R SWITCH PFD/CP CAP ARRAY 3. Advantages and Disadvantages of Bluetooth The main advantage of Bluetooth is its compact form and portability. This technology can be manufactured cheap and can be integrated to micro-levels easily. Bluetooth signals are very resistant to weather conditions and can often operate where other technologies may fail. Despite its short range the technology can be very effective and cheap where long distance coverage is not required. In modern hardware Bluetooth is being used widely. Almost all platforms are benefiting from its cheap production such as cell phones, gaming consoles, computer peripheral devices etc. Even computers can achieve LAN connectivity using Bluetooth. Another great feature of this technology is its less power consumption. The only disadvantage of this technology is perhaps its short range and limited connections i.e. only up to eight devices can connect be connected simultaneously. 4. Conclusion The main aims of Bluetooth are to provide universal radio interference for ad hoc wireless connectivity at low cost, delivering modest speed (1-3Mbps) short range (1-100M) and low power consumption. Bluetooth is a very powerful tool. This technology has proven to be very cost effective and powerful. Over the years we have seen rapid enhancements in this technology. This technology has replaced the previously famous infrared technology which was dependent on line of sight connections. Through Bluetooth one can achieve an effective data transfer rate and easier connectivity regardless the weather conditions. References 1. Kumar Bala C, Klien Paul, Thomson Tin, Thomson J. Timothy; Bluetooth application programming with Java applications 2. Iniewski Krzysztof; Wireless Technologies: Circuit, Systems, Devices 3. Miller Stewart S.; WiFi Security 4. Patrick David, Morrow Robert; Wireless network Co-Existence 5. Ganguly Madushree; Getting Started With Bluetooth 6. Kelly Jod, Schaub Keith B.; Production Testing of RF and System-on-Chip Devices for Wireless 7. Nicholas Randall K., Lekkas Panos C.; Wireless Security: Models, Threats and Solution 8. Golrnie Nada; Coexistance in Wireless Networks: Challenges and System Solutions 9. Prabhu C. S. R., Reddi Prathap A.; Bluetooth Technology and its Applications with Java and J2ME 10. Zolfaghari Ali Raza; Low-Power CMOS Design for Wireless Transceivers 11. Morrow Robert, Laroka James; Demystified: Operation and Use 12. Muller Scott; Upgrading and Repairing Networks 13. Hill Goff; The Cable and Telecommunication Professional References PSTN, IP

Essay --

Melville didn’t name the chapter in the novel, Moby-Dick, randomly. It is evident in this chapter that his syntax, diction, and the vivid descriptions truly depict a symphony. A symphony is a piece of music created for an orchestra and typically has four parts, or movements: Allegro, Andante, Adagio, and Presto. This chapter’s organization can be compared with the parts of a symphony, hence the reasoning behind Melville’s title: The Symphony. In the beginning of the chapter, Ishmael enjoys the clear steel-blue day. Clear steel-blue day is imagery and a metaphor, painting a picture in my mind of a very cerulean blue sky with no clouds. Melville describes the air as being pure, soft, and feminine whereas he describes the sea as robust, strong, and masculine. He is using personification by giving the air and sea, feminine and masculine features, respectively. He then again uses personification by describing the fish of the sea as strong, troubled, and having murderous thinkings. The panorama depicts an ideal view for a day of relaxation. This description is the Allegro of The Symphony...

Medienrecht in Deutschland :: essays research papers fc

1.  Ã‚  Ã‚  Ã‚  Ã‚  Einleitung Die folgende Hausarbeit befasst sich mit dem Urheberrechtsgesetz bzw. mit den darin enthaltenen Leistungsschutzrechten, in der Literatur auch Nachbarrechte oder verwandte Schutzrechte genannt. Die Rechte der Urheber und damit auch die Rechte der Leistungsschutzberechtigten wurden in den letzten Jahren, aktuell durch die Urheberrechtsnovelle von 2003 sukzessive ausgeweitet. Damit wurde der Durchsetzung moderner Kommunikationsmittel in allen Lebensbereichen und dem gewachsenen Gewicht der Kulturwirtschaft Rechnung getragen. Mit den Leistungsschutzrechten wird nicht der Werkschà ¶pfer geschà ¼tzt, sondern solch eine Leistung, die in einem mehr oder weniger engen Zusammenhang mit der Werkschà ¶pfung steht. Im ersten Teil meiner Arbeit werde ich die Rechte und die Leistungsschutzberechtigten charakterisieren, um dann jeweils auf die einzelnen geschà ¼tzten Gruppen und ihre Rechte einzugehen. Im weiteren Verlauf werde ich auf die Ansprà ¼che der Berechtigten eingehen, um abschließend den Blick auf die Zukunft des Urheberrechts und den damit verbundenen Leistungsschutzrechten zu richten. 2. Entstehung des Urheberrechts und der Leistungsschutzrechte Das Urheberrechtsgesetz hat sich aus dem Gesetz betreffend das Urheberrecht an Werken der Literatur und der Tonkunst (LUG) von 1901 und dem Gesetz betreffend das Urheberrecht an Werken der bildenden Kunst und Photographie (KUG) von 1907 entwickelt. Die erste Fassung des Urheberrechtsgesetzes (UrhG), wie wir es heute kennen, trat am 9.9.1966 in Kraft. In den folgenden Jahren war die Entwicklung des Urheberrechtssystems eine sehr dynamische, was sich in mehr als 20 konsolidierten Fassungen bis zum heutigen Tag niedergeschlagen hat. Die letzte große Änderung des UrhG war die Urheberrechtnovelle von 2003. Die Leistungsschutzrechte haben sich im Laufe der Entwicklung des Urheberrechts herausgebildet, und dies besonders seit der Konferenz von Rom zur Revision der Berner ÃÅ"bereinkunft, die 1928 stattfand. Es wurden immer mehr auch Leistungen als schutzbedà ¼rftig angesehen, die zwar keine Werkschà ¶pfung im Sinne des Urheberrechts darstellten, aber dennoch einer schà ¶pferischen Tà ¤tigkeit entsprangen. Besonderen Auftrieb fà ¼r die Gesetzgebungsarbeit an Leistungsschutzrechten gab das Internationale Abkommen à ¼ber den Schutz der ausà ¼benden Kà ¼nstler, der Hersteller von Tontrà ¤gern und der Sendeunternehmen, das sogenannte Rom-Abkommen vom 26.10.1961. Hierbei muss beachtet werden, dass es kein Leistungsschutzrecht im Sinne eines umfassenden oder einheitlichen Rechts gibt, vielmehr handelt es sich um die Summe einzelner, getrennt abtretbarer Befugnisse. 3. Charakterisierung der Rechte und der Leistungsschutzberechtigten Die Auswahl der Leistungsschutzberechtigten scheint mehr oder weniger willkà ¼rlich. Nur die  §Ã‚ § 71, 73, 81 UrhG sehen vor, dass ein urheberrechtlich schutzfà ¤higes Werk verwertet wird. Die à ¼brigen Leistungsschutzrechte haben zwar hà ¤ufig, jedoch nicht unbedingt die Verwertung einer Werkschà ¶pfung zum Gegenstand. Auch die durch die  §Ã‚ § 70 ff. geschà ¼tzten Leistungen unterschieden sich: Werden durch die  §Ã‚ § 73 ff.

To Kill a Mockingbird by Harper Lee and The Woman in White :: Compare Contrast Lee Woman White Essays

To Kill a Mockingbird by Harper Lee (post 1914) and The Woman in White by Wilkie Collins (pre 1914) I chose the book "To Kill a Mockingbird" as I had read it a while ago and had enjoyed it a great deal, I was also interested in the themes and subjects covered in it, such as: Prejudice, innocence, how a mind set affects peoples opinions etc My only problem was I had no idea what to compare it to as I am not a huge fan of classical literature, and do not know many books of this style. My teacher suggested I try either "Jane Eyre" or "The Woman in White", as they both covered the themes and subjects of "To Kill a Mockingbird". First I tried "Jane Eyre", after a few chapters I decided to try "The Woman in White", as I found "Jane Eyre" quite monotonous and dull. The first few chapters in "The Woman in White" were also quite dull but at about chapter 8/9 it starts getting really interesting soon after I couldn't put it down. It is now one of my favourite books The "Woman in White" is a story about the horrific acts a man of high status could commit in the 1800's and get away with (Sir Percival Glyde). The story begins by introducing us to Walter Hartright, who is the primary narrator, through him we have our first encounter with the woman in white (Anne Catherick), who hints that she had been terribly wronged by an evil baronet (who we soon discover to be Sir Percival Glyde). Sir Percival is engaged to Laura Fairlie, the beautiful art student of Mr Hartright. But Laura and Mr Hartright are in love, the triangle ends with Laura and Sir Percival marrying and Mr Hartright going to Central America to try to forget Laura. It turns out that Sir Percival has a terrible secret, which Mrs Catherick (Anne's mother) knows it is that he is not really a baronet he becomes paranoid of Anne discovering it so he sends her to an asylum. In addition, he is in great debt, which is why he marries Laura as she is set to inherit a great fortune. This is the base of which a terrible conspiracy takes place, which robs Laura of her identity and money then locks her up in an asylum. The rest of the story concerns her revenge, and how it was possible for such a thing to take place. "To Kill a Mocking Bird" is also based around how an innocent who is wronged simply to suit a person's personal needs.

Petition: Rhetoric and Adams Essay

Gordin Adams’ argument is effective because of his persuasive appeal to logos, pathos, and ethos. In the beginning of his petition, he starts with his general occupation and present education. Adams ends it with a clear purpose of why he entered college. From this part, he shows credibility and character. Adams adds in much more ethos to defend his claim by first representing himself as a person; the high achievements he has earned during both colleges, SCC and ASU; and the education he gained. With this amount of intelligence and awards, he grows his credibility and sets a character presented to the committee. Adams presents himself as confident, hardworking student by saying, â€Å" [he] will enter the ASU College of Law to study Indian and criminal law during the Fall of 1992 if this petition is approved.† He has a game plan and is determined to serve his tribe. Further more into the petition, he backs up his claims with job occupations and projects he has done in th e past, stating that he â€Å"used geometry and algebra commonly in the design of many welded structures.† Adams then shows he has much credibility and knows what he wants. For every question that he had about the requirements of college algebra, he uses supportive evidence to back up his argument, where he used algebra. Adams uses a large amount of ethos during the whole petition to keep the committee from loosing he’s attention. As for logos, he points out his case and claims he doesn’t need algebraic skills for his future profession. He piles up all of his achievements, awards, outstanding grades, and honors; shows information about himself. With the questions Adams thought about, he asked professors of the college to give the committee evidence, quotes, and responses. He shows them he doesn’t need algebra by backing it up with real supportive evidence of other college staffs of ASU. He â€Å"contacted Dr. _____ of the ASU Mathematics Department†, â€Å"consulted Mr. Jim ____ of the Justice College†, and then he contacted his friends who were practici ng attorneys. They responded â€Å"no† to all of Adams’ questions. From this evidence and responses, he’s able to support his argument. As for pathos, he made â€Å"a vow of moral commitment to seek out and confront injustice.† Adams sends out a emotion of loyalty, impressive, and proud. Adams also said he is the first in his family to enter college. He presents himself to the committee as outstanding individual, making them  feel impressed towards Adams. The petition says if he has it approved he will â€Å"vigorously prosecute [their] right to sovereignty before the Congress of the United States.† Adams shows he is determined and has a purpose of his life. In the ending of the petition, Adams makes the committee feel sympathy and guilt because the examples of the problems the Native Americans are experiencing and wishes to resolve them. By promising the committee that he will be faithful and assured, he shows them that ASU will have no changes of accreditatio n and wills still continue to achieve. It sends out an emotion of faith and trustworthy towards Adams from the committee. Thus, by using hard evidence, emotion appeal, and credibility, he is effective in appealing to logos, pathos, and ethos.

Advantages and Disadvantages of Large Populations

The meaning of CPI (Consumer Price Index) is a measure of how the price of goods and services changes over a period of time. Real GDP per capita means calculating the average income per person in a year. Cost of Living simply means the amount of money we use to live by everyday like, the money we paid for food, taxes, see doctor, and petrol for cars. While Standard of Living means the quality and how people are able to afford of housing, luxurious or non-luxurious living. Different levels of wealth and comfort ability.The advantages of having a large population are an increase in a country’s wealth, more demands hence, causes a growth in economy as well as, rising of income per household. Benefiting larger families, with more money to spend for example, travelling and ability to purchase more stuff. If there are larger population in a country, it also means more money will go into the country’s capital for example, paying of taxes and household bills to the governments. Having a large population doesn’t mean it is an advantage too.There are definitely disadvantages of having a large population in a country, like a shortage in properties, demanding of a rise in salaries and also shortage of resources. The real GDP for China in year 2011 was $7. 318 trillion USD, while the real GDP for Singapore was $239. 7 billion USD. Real GDP per capita for China was 8,500 USD while Singapore was 60,500 USD. There will be pros and cons of Cost of Living in China as China is a big country and difficult to maintain.China has a total population of 1,344,130,000. As mentioned above, that the advantages of having a large population in a country may increase the wealth of the country as well as the economy. Demanding for Standard of Living for example, asking for bigger houses or space if there’s a big family. However, Singapore is a very small country with a population of only 5,184,000. Cost of Living is so much higher as Singapore is the smallest count ries in the world and that makes it easier to maintain as compared to China.More will demand on Standard of Living because Singapore is small and if, there are going to be new members joining in the family they will probably need to have a much bigger space to live. Singapore is also known as one of the richest country in the world. Thus, Standard of Living is high. Consumers demanding for better clothing, food and living environment. It is because Singapore is a small country and the country does not have to spend more money on maintenance except for upgrading and that makes more Singaporeans to be rich hence, Standard of Living is high.