Tuesday, August 25, 2020

French Adverbs ~ Les Adverbes

French Adverbs ~ Les Adverbes A qualifier, one of the eight grammatical forms, is a constant word that adjusts an action word, a modifier, or another intensifier. Intensifiers give data about the words they adjust, for example, when, where, how, how regularly, or to what degree something is finished. See the rundown of some basic French modifiers toward the finish of this exercise. Word Order with Adverbs In English, qualifier arrangement can be discretionary: a few intensifiers might be found before or after the action word, or even toward the start or end of the sentence. This isn't frequently the situation in French, which has a lot stricter principles about arrangement. The accompanying guidelines apply to most of circumstances, however there are special cases. For point by point data, see my exercise on the situation of French adverbs.1. At the point when a French intensifier alters an action word, it is set after the conjugated action word. Nous avons bien mang. We ate well. Je regarde souvent la tl le soir. I regularly sit in front of the TV at night. Frequently, I sit in front of the TV at night. I stare at the TV at night frequently. Â â 2. At the point when a verb modifier changes a descriptive word or another intensifier, it is put before the word it is adjusting. Je suis profondment mu. I am profoundly moved. Nous avons trs bien mang. We ate well indeed. Normal French Adverbs About each French word that closes in - ment is an intensifier, and its English equal quite often finishes in - ly: gã ©nã ©ralement - by and large. For more data, kindly observe verb modifiers of way. Here are the absolute most regular French verb modifiers: French English Sort of verb modifier actuellement presently qualifier of time assez fairly qualifier of amount aujourdhui today qualifier of time aussi as relative verb modifier beaucoup a ton qualifier of amount bien well qualifier of way bientt before long qualifier of time dj as of now qualifier of time demain tomorrow qualifier of time enfin at last qualifier of time ensuite next, at that point qualifier of time heureusement luckily qualifier of way hier recently qualifier of time ici here qualifier of spot l there qualifier of spot l-bas over yonder qualifier of spot longtemps for quite a while qualifier of time maintenant presently qualifier of time mal inadequately qualifier of way moins less relative verb modifier parfois in some cases qualifier of recurrence partout all over the place qualifier of spot peu few, little verb modifier of amount additionally more, ___-er relative verb modifier quelque part some place qualifier of spot rarement once in a while qualifier of recurrence souvent frequently qualifier of recurrence tard late verb modifier of time tt early verb modifier of time toujours continuously verb modifier of recurrence trs very verb modifier of amount trop to an extreme verb modifier of amount vite rapidly verb modifier of way

Saturday, August 22, 2020

The Magna Carta

1. Magna Carta [1215] (52): The Magna Carta was an understanding that safeguarded insurance of respectable (medieval) freedoms from usurpation by the King. The Magna Carta impacted the advancement of custom-based law (legitimate point of reference), just as sacred standards (as found in the United States Constitution). 2. Boss Powhatan (59): Chief Powhatan was the head of Algonquian-talking towns (Powhatan Confederacy) in eastern Virginia, head of around 10,000 Indians. Powhatan took 80% of the corn his kin developed and exchanged that and stows away for weapons. Thus, the English individuals assumed control over his properties. . Mercantilism (163): Mercantilism was a national program that said that the aggregate sum of the world’s gold and silver remained the equivalent and just what percent of that every country had changed then one country could just get more extravagant by taking another’s gold and silver and assuming control over its exchange. Therefore, countries needed to create and ensure its own delivery and needed to exploit the states. 4. London (Virginia) Company (57): The Virginia Company was a joint-stock between the First Colony of London and the Second Colony of Plymouth. Ruler James had them go on a strict crucial carry the Christian religion to the locals of the provinces. The pilgrims attempting to change the locals religion drove the relations between the two to get tenser. 5. John Smith (59): John Smith was delegated by the Virginia Company to oversee Jamestown. Smith was severe and made everybody work. In the event that pioneers quibbled, he detained them, whipped them and constrained them to work. He dealt with Indians and investigated and mapped the Chesapeake district. As a result of him, Jamestown endure, however he was not popular with the pilgrims. . Jamestown (58): Jamestown was the main changeless state in Virginia by the Virginia Company. The 105 men constructed a stronghold, cabins, a storage facility and a congregation. Exchange with the Indians and the lessons of the Indians were the main explanation Jamestown at first endure. 7. John Rolfe (62): John Rolfe was the explanation tobacco turned into a famous yield. He got it together of certain seeds and tobacco got mainstream. It had a major benefit and helped the economy. It likewise drove obligated workers to come over, boosting the populace. John Rolfe likewise wedded Pocahontas, Chief Powhatan’s little girl. She wedded John Rolfe and they moved to London. John Rolfe was the purpose behind the tobacco business in the states and greater steadiness between the pioneers and Indians. 8. Place of Burgesses: 9. Pocahontas (63): Pocahontas was the girl of Chief Powhatan. She spared John Smith when he intruded. Powhatan let Smith go in return for weapons, dabs and knickknacks. She was caught in 1614 by Jamestown to attempt to coerce Powhatan. She wound up changing over to Christianity, changed her named to Rebecca, and wedded, had a child and moved to London with John Rolfe. She was an explanation Indians and settlers relations improved. 10. Sir William Berkeley (64): Sir William Berkeley was Virginia’s regal senator beginning in 1642 and stayed it for the following 35 years. Berkeley supported the most extravagant grower and the everyday citizens opposed him in Bacon’s Rebellion. At long last, Berkeley recaptured control. 11. Headright System (63): The headright framework said that any individual who purchased an offer in The Virginia Company could get 50 sections of land and 50 more in the event that they brought hirelings along. Sir Edwin Sandys initiated this change. It helped the populace develop. 12. Obligated hirelings (62): Indentured workers were individuals who couldn’t bear to go to America so in return for work, grower would pay for their ride over. This expanded the progression of workers to the states. 13. Bacon’s Rebellion (65): Lowered tobacco costs, rising expenses and liberated workers needing Indian grounds added to Bacon’s Rebellion. Bacon’s Rebellion became out of the disdain for Berkeley for preferring the rich grower and abhorring everyday people. Liberated contracted hirelings needed land and drove them to take the Indian’s land. Berkeley didn’t bolster them so they revolted. The grower and Indians began to get fierce. In 1676, Bacon resisted Berkeley by assuming responsibility for a gathering of outskirts men. Bacon needed all Indians dead and Berkeley didn’t. Bacon’s disobedience was the main battle of regular people versus nobles. Berkeley recovered control in the wake of hanging 23 radicals. An imperial commission made a harmony bargain with the Indians. The aftereffects of the disobedience were new grounds opened to settlers and well off become increasingly helpful with ordinary people. 14. William Bradford (69): William Bradford drove 100 men, ladies and youngsters to the states on board the Mayflower. He and the pioneers arrived at Plymouth and they based on a relinquished Indian town. Bradford prompted the Indians and Pilgrims having better relations with one another and Thanksgiving. 15. City on a Hill (72): John Winthrop imagined the Massachusetts Bay Colony as a city on a slope. Winthrop utilized slope allegorically to show that he felt they would above rest of the provinces. 16. John Winthrop (72): John Winthrop was the principal legislative leader of Massachusetts Bay Colony and needed to utilize the province as a shelter for Puritans. He exploited the contract by the Massachusetts Bay Company by taking its sanction with them, moving government authority so they could have nearby control. 17. Travelers/separatists (69): The Pilgrims were a piece of the most extreme segment of Puritans, the Separatists (Nonconformists). They didn’t like the Church of England and chose it couldn’t be fixed so they would make their own genuine assemblies. Dissident pioneers were detained and some of the time hung. Ruler James I needed to dispensed with them. Subsequently, they left and went to the settlements to get away. 18. Puritans (68): The Puritans were a gathering of English Protestants. The Puritans in England executed King Charles and made his child the ruler. The Puritans settled in New England. They were very religions and professed to be on a perfect strategic make a model Christian culture. 19. Massachusetts Bay Colony (72): Massachusetts Bay Colony was expected to be a sacred republic. The vast majority of the Puritans there were Congregationalists who framed self-administering places of worship. 20. Plymouth Colony (69): Plymouth Colony held a land award however had no sanction of government structure any English position. The Mayflower Compact represented it. Its populace never transcended 7,000. 21. Mayflower Compact (69): The Mayflower Compact was made by 41 Pilgrim pioneers who went into a conventional consent to comply with the laws made by the pioneers based on their personal preference. The Mayflower Compact was the essential wellspring of government for Plymouth Colony. 22. Anne Hutchinson (77): Anne Hutchinson contended with Puritan pioneers. She lived in Boston and held messages in her home. Before long they become well known messages drove by her. She guaranteed that she got disclosures from the Holy Spirit that persuaded her that lone a couple of Puritan clergymen lectured the fitting pledge of effortlessness. She said the remainder of them were â€Å"godless hypocrites† and awkward. 23. Fate: Predestination is the Calvinist hypothesis that God has foreordained who will go to paradise and who will take a hike. This drove individuals, for example, Roger Williams to address why church was essential. 24. Roger Williams (75): Roger Williams was one of the â€Å"purest of Puritans† and was upset by the disappointment of the Massachusetts Nonconformists to dispose of the Church of England. He advocated freedom and said that the genuine agreement was among God and the person. He offered a conversation starter that if one’s salvation relies exclusively on god’s beauty and you can’t influence it, why even trouble having houses of worship? Why not simply let individuals practice their through and through freedom in revere? 25. Pequot War (82): The flash of the Pequot War was when pioneers in Massachusetts blamed a Pequot for killing a settler. The pilgrims sought retribution by burning down a Pequot town. As the Pequot’s fled, the Puritans shot and slaughtered them. The Pequot’s discredited by assaulting the English. The pilgrims and their partners the Narragansett-slaughtered several Pequots. 26. Iroquois League (96): The Iroquois League was compensated for 12,000 individuals represented by 50 boss. The boss settled on choices for all the towns and went about as peacemakers. They held onto Canadian chasing grounds and crushed western clans to chase beaver in the area to eradication. French and Indian partners picked up the bit of leeway over them and diminished their populace by a third. The Iroquois made harmony with the French in 1701. 27. Quakers (98): The Quakers were the most persuasive of the extreme strict gatherings. George Fox established them in 1647. They were an incredibly lenient gathering of individuals. They accepted everybody ought to have total strict opportunity. 28. William Penn (98): William Penn was the organizer of the Quaker state of Pennsylvania. At the point when he assumed responsibility for Pennsylvania, there was a dispersing of religions and races and he put forth attempts to acquire more pilgrims of any religion as long as they had confidence in God. He offered land and the state developed quickly. He bought land titles from the Indians and even took in an Indian language. The Indians and settlers lived one next to the other in harmony. 29. Atlantic Slave Trade: When ranches expanded, the requirement for slaves expanded. This prompted the formation of the Atlantic Slave Trade The Atlantic Slave Trade was the selling and shipping of African slaves over the Middle Passage. In any case, 1 of every 7 slaves kicked the bucket during the outing. 30. Stono Slave Rebellion (123): Mistreated slaves defied their lords. The slaves who took an interest in this disobedience were executed and their heads were set up on mile imprints to caution different slaves not to revolt. 31. Triangular Trade (135): New Englanders delivered rum to Africa which they exchanged for slaves, took the captives toward the West Indies a

Sunday, July 26, 2020

The Ides of March

The Ides of March This entry brings to a close one of the longest periods of blog inactivity ever since I began this blog. Whats been keeping me so busy? Domestic selection (final stages). Its been a long season of Regular Action, but we are finally beginning to see the Class of 2010 truly take shape. I cant help but be excited. International selection. Choosing slightly more than 100 students out of more than 2500 super-qualified applicants is a daunting task. Im excited about the choices weve made, while at the same time hopeful that the students we couldnt find room for at MIT will have other great opportunities elsewhere. RSI selection. I am honored to be a part of the selection committee for the Research Science Institute, a summer program hosted by MIT and run by the Center for Excellence Education. RSI, which is free (except for the application fee), actually has a lower admission rate than the MIT freshman class. I dont know when decisions will be released, but for those students who are not admitted, I hope youll still apply to MIT, since we have 1400 more admission spaces than RSI does. MITES selection (preliminary phases). I am also honored to participate in the selection committee for the Minority Introduction to Engineering Science (free) summer program at MIT. And again, I dont know when decisions will be released, but for those students who are not admitted, I hope youll still apply to MIT, as many students turned down for MITES are still very competitive for freshman admission. Campus Preview Weekend preparation. CPW is just three weeks away! Were planning a 4-day weekend for the Class of 2010 that will hopefully help admitted students determine whether or not MIT is the right fit. For those of you who are admitted this weekend, I hope youll sign up ASAP for CPW, which is April 6-9. Intel Science Talent Search. Each year I am fortunate to attend the banquet and celebration of the Intel Science Talent Search (STS), which is also referred to as the junior Nobel Prize. Previous STS winners include Prof. Eric Lander (my MIT freshman biology teacher, and this years CPW keynote speaker). One of the reasons I really like Intel STS is because it is a great celebration of science research and education, and we need more celebrations of excellence in these fields.And in this season of high anxiety over selective college admissions, I think its worth noting that this years STS winner, Shannon Babb, will attend Utah State University, and that last years winner, David Bauer, attends the City University of New York Honors College. The Ides of March On the ides of March, I attended the awards ceremony of the Intel Science Talent Search (STS). As you may have read, this years big winner was David Bauer from New York City, who did a project on quantum dots. David is off to the CUNY Honors College next year. The STS awards ceremony is a black tie event; I was sporting my tux. Its a pretty swank event. With all the glitz, the people dressed to the nines, the great food, it made me feel like I was at the Oscars of high school science. And, in a way, I was. Science isnt celebrated enough in our society, and I think a big part of that is its not really in the nature of the science community to self-promote or to create idols, anoint heroes. This really struck me on the day after Einsteins birthday, two weeks after an article in the Science Times wondering who is the next Einstein. Could it happen again? Who or where is the next Einstein? No question is more likely to infuriate or simply leave a scientist nonplussed. And nothing, of course, would be more distracting, daunting and ultimately demoralizing than for some young researcher to be tagged the new Einstein, so dont expect to hear any names here. Its probably always a stupid question, said Dr. Lawrence Krauss, a cosmologist at Case Western Reserve University, who nevertheless said he had yet to read a profile of a young scientist that does not include, at some level, some comparison to Einstein. Dr. Stephen Hawking, the British cosmologist and best-selling author, who is often so mentioned, has said that such comparisons have less to do with his own achievements than the medias need for heroes. But maybe its more than the medias need for heroes. Perhaps it is the next generation of scientists and engineers who need role models, who need to see science as something to be celebrated. (Still, some newspapers today called the 40 Intel STS finalists top teen eggheads.) How can we inspire future scientists to follow their calling? So, even with all its excess, I think that a black-tie gala culminating in the naming of the so-called junior Nobel Prize is a great thing, as it is a great celebration of discovery and invention. And despite the Times criticism of high school research programs last week, I still think that anything that gets more students excited about doing real science is a good thing. And possibly the Science Talent Search has done that better than any other program. At the reception, I stood as a representative of the first university to get undergraduates significantly involved in research, chatting with the people behind the Research Science Institute and Californias COSMOS. Each year, more and more students are becoming involved with research at the high school and university level, thanks in part to programs like STS (started in 1942), UROP (1969), RSI (1984) and COSMOS (2000), and new programs spring up each year. I thought to myself, were making progress.

Friday, May 22, 2020

Persuasive Essay About Long Summer Vacations - 729 Words

It’s summer vacation and students are excited to have a long break with their friends. However,this is the time of the year where they forget everything they learned all school year because they sleep and wake up late and in between they do not keep their brains active. Instead of reading a book three times a week or practicing math, some work with their parents or on their own, while others stay home being lazy. The long summer vacations for students in Anaheim are ineffective. In order to increase students success in Anaheim Schools, students must have less longer vacations and instead have a round school year to keep their brains active by remembering the analytical subjects as well as others. *In the collections book Maritas Bargain,†¦show more content†¦Leaving behind a set mindset will increase student success. *In the article Secret to Raising Smart Kids, the author Dweck researches the different views students have on Intelligence. Some believe they were engen dered smart and if they make a mistake they are considered unintelligent, â€Å"A belief in fixed intelligence also make people less willing to admit to their errors or to confront and remedy their deficiencies in school, work and social relationships† (24). This is the biggest mistake a parent or a mentor can instil in a student because it will affect them in the future. If the student believes he/she is smart, they only focus on getting good grades, but when they encounter a challenge they back away because they do not know how to confront it. Since they have never been exposed to difficulty, students become vulnerable and are afraid they will fail, so they do not give it a chance nor do they put in effort. Moreover, it’s crucial that we help them correct this mindset so they learn how to accept challenges and correct their mistakes. This would prevent them from presenting fallacious work at their job, school, or in their social lives.*Moreover, â€Å"Over emphasis in intellects/ talents lead to failure† (21). The only problem with reminding our students of their talent, is that it gets too repetitive to the point where the student losesShow MoreRelatedAccounting: Recordation of Assets and Liabilities of All Continental Countries2557 Words   |  11 Pages | | | | |Quarter |Summer 2011 | |Meeting Days/Time |Online Read MoreThe Work Study Job Of Transcribe Oral History Tapes From Richland Center, Wisconsin5921 Words   |  24 Pageslistened to the cassettes and wrote down what I heard on paper, typing it up afterwards. Then to save time, I started listening to the tapes and typing what I heard. Transcribing is hard work. The tapes were typically an hour each. Transcribing an hour long tape can take many hours, many times the actual length of the tape. 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Friday, May 8, 2020

Environmental Factors and Marketing - 1323 Words

Environmental Factors and Marketing Decisions Will a successful marketing plan in one country work in another country? This is unlikely to occur due to many different cultural, political, economic, technological, and competitive environments. Marketing mixes require adjustments to meet local conditions and companies that understand these environmental factors can create advantages when positioning their products or services. Wal-Mart is a global organization and uses market research to understand the market environments before making marketing decisions. Introduction Wal-Mart operates over 6,100 stores worldwide, employs 1.8 million associates, and operates in 15 different countries (Annual Report, 2006, p. 12). Lee Scott,†¦show more content†¦In fact, out of 600 new store openings planned for 2007, one-third will be international location (Annual Report, 2006, p. 12). How is Wal-Mart expanding so fast and successfully in the global market? Wal-Mart elected to purchase existing grocery store chains instead of entering into a new market without brand identification. The competitive environments in Central and South America shaped the way Wal-Mart expanded. Instead of building new stores, Wal-Mart purchased existing retailers and kept their same name. Wal-Mart does business under Seiyu in Japan, Bodega Aurrera in Mexico, Asda Living in the United Kingdom, Todo Dia in Brazil, and CARCHO in Central America. Around the world, Wal-Mart operates 9 different formats to reach its target markets (Annual Report, 2006, p. 16). This strategy provides an instant marketing mix that will allow Wal-Mart to make distribution changes to increase profits. This strategy may also prevent some of the negativity Wal-Mart receives domestically by squeezing out the smaller merchants. 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Wednesday, May 6, 2020

Modelling of underwater acoustic communication network Free Essays

string(55) " included in order to avoid collisions from neighbors\." 1. INTRODUCTION The research on underwater acoustic networks (UAN) is gaining attention due to their important applications for military and commercial purposes. Underwater communication applications mostly involve long term monitoring of selected ocean areas. We will write a custom essay sample on Modelling of underwater acoustic communication network or any similar topic only for you Order Now The traditional approach for ocean bottom monitoring is to deploy underwater sensors, record the data and recover the instruments. However this approach creates long delays in receiving the recorded information and if a failure occurs before the recovery, all the data is lost. The ideal solution for these applications is to establish real time communication between underwater instruments and a communication center within a network configuration . Basic underwater networks (UAN) are formed by establishing a two way acoustic link between various instruments such as autonomous underwater vehicles and sensors. the network is then connected to backbone such as internet, through the RF link. This configuration creates an interactive environment where scientists can extract real time data from multiple underwater instruments. The data is transferred to the control station when it is available hence data loss is prevented until a failure occurs[2]. Underwater networks can also be used to increase the operation range of underwater vehicles. The feasible range of underwater vehicles is limited by the acoustic range of a single modem which varies from 10 to 90 km [2].However due to high cost involved in underwater devices it is necessary that the deployed network be highly reliable so as to avoid failure of monitoring mission due to failure of single or multiple devices. From the communication point of view, underwater environment is much different from its terrestrial counterpart. Consequently, the research of UAN’s becomes different and exhibits unique features. It is because: The attenuation of acoustic signals increase with frequency and range resulting in extremely small feasible band. The propagation speed of acoustic wave is 1500m/sec which is several orders of magnitude lower than radio waves [3], thus giving large propagation delays. The channel characteristics vary with time and highly depend on transmitter and receiver. The fluctuating nature of the channel causes distortion in the signals. Due to the variable acoustic environment UAN differ in many aspects such as ranging from network topologies to protocols of all layers compared with the ground one. 2. NETWORK TOPOLOGIES The network topology directly influences network capacity of the underwater channel which is severely limited. It becomes important to organize network topology in such a way that no congestion occurs or in other words designing of network topology with single point of failure should be avoided. Underwater networks can be composed of entirely fixed nodes, entirely mobile nodes or a mixture of both. The network topology typically need to be ad hoc in nature either because communicating nodes are moving or basic acoustic conditions change with time. There are three basic network topologies that can be used to interconnect network nodes [3]. (1)Centralized topologyIn this topology, each network host is connected to central station known as hub of the network. The network is connected to a backbone at this central station. Deep under water acoustic networks (UAN) has been tested using this configuration where a surface buoy with both an acoustic and RF modem acts as the hub and controls the communication to and from ocean bottom instruments. This topology is considered the easiest topology to design and implement .The advantage of this topology is the simplicity of adding additional nodes. A major disadvantage of this topology is the presence of single failure point.If the hub fails, the entire network goes down. Further, the network cannot cover large areas due to limited range of single modem. (2)Distributed of point to point topology This topology provides point to point links between every node of the network. There is just one hop from a node to any other node, hence routing is not necessary. The major disadvantage of this configuration is that excessive power is needed for communicating with widely spread nodes. Further, near far problem [4] is much prominent in which a node can block signals of the neighboring node. (3)Multihop topology In this topology nodes are involved to send a message from source node to destination. Hence routing is needed which is handled by intelligent algorithms that can adapt to changing conditions.Multihop networks can cover large areas since the range of the network is now determined by number of nodes rather than the range of the modem. The only problem with this topology is that of packet delay as the number of hops increase 3. MEDIA ACCESS TECHNIQUES Due to scarce bandwidth, long propagation delay and high error rate, underwater nodes in a UAN have to share the available resources. The three basic access techniques are (1) Frequency division multiple access(FDMA)FDMA divides the bandwidth into several subbands and assigns one of them to a particular user. The band is used by this user only till it is released.FDMA may not be efficient in underwater environment. The available bandwidth is extremely limited .By dividing the band into smaller sub bands , the coherence bandwidth of the transmission channel can be larger than FDMA subchannel.This will result in severe fading .another issue is that mechanism could in inefficient in bursty[ 4] traffic because bandwidth is fixed for each subband and cannot be adjusted [5] . (2) Time division multiple access(TDMA) In this multiple access scheme time frame is divided into slots and each slot is assigned one individual user. Each user transmits in the assigned slot. The advantage of TDMA is power saving which is extremely critical in underwater environment. Since each user transmit only in its assigned slot, transmitter could be turned off during the idle period to save energy.TDMA is also flexible in the way that data rate of users can be increased on demand. The same hardware can be used to transmit and no extra hardware is needed e.g. to add another time slot for a user. The disadvantage of TDMA is that it has larger overload than FDMA which means guard times are included in order to avoid collisions from neighbors. You read "Modelling of underwater acoustic communication network" in category "Essay examples" Further, TDMA requires strict time synchronization. The significant difference in propagation delays cause large idle times resulting in decrease in throughput. (3) Code division multiple access CDMA This multiple access method is the widely deployed scheme based on spread spectrum. It allows users to transmit signalsall the time with all available bandwidth. Signals from users are distinguished by means of spreading code. This code is orthogonal to the spreading codes used by other users. There are two spreading techniques namely direct sequence spread spectrum(DS) and frequency hopping spread spectrum(FH).In the former case the spread code is multiplied directly(linear modulation) in order to spread the original bits while in latter case, the carrier frequency of a user is changed according to the pattern of the spread code. Following are the main advantages of CDMA (a)It has higher efficiency and throughput than FDMA and CDMA [3]. (b)CDMA is very effective against jamming, multipath interference and any other interference that appears deterministic [6]. (c)Switching from signal to signal for a transmitter or receiver can be easily done by changing the spread codes. Thus CDMA is flexible. (d)In DS system, fine time resolution of spreading codes provides the possibility of coherently combining multipath arrivals using rake receiver. The rake receiver identifies three strongest multipath signals and combines them to one powerful signal. If the resolvable multipath components fade independently, it is possible to extract a time diversity gain present in the channel [5]. (e)Increased communication security. Due to above mentioned reasons, CDMA and spread spectrum signaling appear to be promising multiple access method for shallow water acoustic networks. 4. MAC PROTOCOLS FOR UNDERWATER NETWORKS A lot of media access control (MAC) protocols for underwater networks have been explored such as ALOHA, slotted ALOHA and CSMA. The most significant protocols among underwater networks seem to be CSMA/CA . Carrier sense media access with collision avoidance (CSMA/CA) The scarce resources of channel can be utilized much better if users sense the channel before transmitting a packet. This protocol uses two signaling packets called request to send (RTS) and clear to send (CTS). When a device intends to send a packet, it first senses whether another station is already transmitting (carrier sense). If no transmission is sensed, the device will issue RTS signal which contains the length of the message to be sent. If the recipient station senses that the medium is clear, it sends a clear to signal (CTS) which also contains the length of the message to be transmitted. As soon as the station wishing to transmit receives the CTS signal, it sends the actual data packet to its intended recipient. If the transmitting station does not receive the CTS signal in reply, it begins the RTS procedure. The controlling signal CTS should be heard by all the nodes within the range of the receiver node which in turn means that this protocol relies on the symmetry of the channel. It becomes essential to send CTS from a higher level to ensure that all the nodes within the range can hear it. This protocol can be used as a basis of media access protocol for underwater networks. It provides information for power control algorithms as nodes learn the minimum power level needed for reliable communication by trial and error. 5. NETWORK LAYER Single hop transmission becomes inefficient if the range of the network becomes large. In that case multihop transmission is needed to relay the information from source to destination. It has also been proved that in underwater networks multihop transmission is more efficient in terms of power consumption [7]. The network layer is responsible for routing packets from source to destination when multihop is needed. There are two methods of routing namely virtual circuit routing and packet switched routing. In virtual circuit routing, a communication path is decided before the data transmission takes place. Based on resource optimizing algorithm, the system decides which route to follow. For the whole transmission time session between two communicating entities is dedicated and exclusive, and released only when the session terminates. In packet switching, the packets are sent towards the destination irrespective of each other. There is no pre determined path and each packet has to find its own route. Each node is involved in routing the packets in order to determine the next hop of the packet. Underwater networks may have entirely fixed nodes (ocean bottom sensors) or completely mobile nodes (autonomous underwater vehicles).These instrumentstemporarily form a network without the aid on any pre existing infrastructure.These are called ad hoc networks [3].The main problem in ad hoc networks is obtaining most recent individual link state in the network, so as to decide best route for the packets. However, in case communication medium is highly variable such as shallow water acoustic channel, the number of routing updates can be very high. Some of the routing protocols that can be used in underwater acoustic networks are as follows [3]: (1)DSDV (Destination sequenced distance vector) In this routing algorithm every node maintains a routing table of all available destinations, number of hops to reach the destination and the sequence number assigned by the destination node. The sequence number is used to distinguish stale routes from new routes and thus avoids the formation of loops. If a node receives new information, it uses the latest sequence number .If the sequence number is same as the one already in the table, the route with better metric will be used. The nodes periodically transmit their routing tables to their neighbors. If a node detects any route to the destination broken, then its hop number is set to infinity and its sequence number is increased. The disadvantage of DSDV is that its routing tables need to be updated regularly which wastes batter and small bandwidth even when the network is idle. further, if topology of network changes, a new sequence number needs to be added hence DSDV is not suitable for highly dynamic networks. (2)DSR (Dynamic source routing) Instead on relying on the routing table at intermediate node, DSR makes use of source routing. The sender knows the complete hop by hop route to destination with these routes stored in a route cache. The route for each packet is included in its header. The node which receives the packet checks the header for the next hop and forwards packet. Route discovery works by flooding the network with route requests (RREQ) packets. On receiving the RREQ each node rebroadcasts it, unless it is the destination or it has route to the destination in its route cache. This protocol works well in static and low mobility environments. (3)AODV (Ad hoc on demand distance vector This protocol establishes route to the destination only on demand and does not require nodes to maintain routing tables of destinations that are not actively used. Routes are discovered and maintained by route requests (RREQ), route replies (RREP) and route errors (RERR). AODV uses destination sequence numbers on route updates which guarantees loop free path and gives the view of several fresh routes. The advantage of AODV is that it creates no extra traffic for communication along existing links by lowering the number of messages, thus conserving capacity of the network. Also , distance vector routing is simple and does not require much calculation. However time to establish connection and initial establishment of a route is much longer than the other approaches. 6. RELATED WORK The interest in underwater networks and the consequent research has exponentially grown in recent years. Network Simulation and testing of underwater acoustic networks is relatively a new area, however there already exists some effort in this area. The authors of [2] compare the performances of DSDV, DSR and AODV with regards to following parameters (1)Total throughputIt is the average rate of successful message delivery over a communication channel and is expressed as bits per second. Throughput is the very important metric in underwater acoustics because of very limited bandwidth. Fig 1: Total throughput for DSDV, DSR and AODV routing protocols [2] The above figure shows the total throughput plotted against the offered load. It can easily be concluded that AODV has the best performance and maximum throughput, whereas DSR routing protocol is the worst. (1) Total packet delivery ratio It is the ratio between the number of packets sent out by the source and the number of packets correctly received by the corresponding destination. It is calculated by averaging time passed from the time a data packet is generated and when the packet is received by the destination. Fig 2: Total delivered packets for DSDV, DSR and AODV routing protocols [2] The above figure total delivered packets versus the offered load. The plot indicates that the DSR and DSDV have best performance when the offered load is below 0.1 pkt/sec, and AODV protocol is worse when the offered load is 0.1 pkt/sec. however when the offered load increases AODV protocol gives the best performance compared to DSR and DSDV. (1)Average end to end delay It is the delay in the arrival of packet calculated by averaging the time that passes the time a data packet is generated to when it arrives at its final destination. Figure (3) shows the plot of average end to end delay versus the load offered. The minimum end to end delay is achieved by AODV protocol .DSR is the worst routing protocol having an average delay of 115 sec.In general minimum delay is achieved by all routing protocols when the offered load is small. Fig 3: Total average end to end delay for DSR, DSDV and AODV protocols. [2] In the above mentioned system it can be concluded that AODV routing protocolachieves maximum throughput and has best performance compared with DSDV and DSR routing protocols. It also gives minimum end to end delay when compared with other protocols. The best performance was achieved when offered load was decreased resulting in increase in packet delivery rate and decrease in average end to end delay. 7. CONCLUSION FUTURE PROSPECTS The past decades has significantly advanced underwater networking research. Static protocols such as TDMA or CDMA and dynamic protocols like CSMA/CD have been used in distributed and centralized topologies. DSR, AODV and other lightweight protocols have been investigated for underwater use. Efficient multihop and ad hoc packet routing protocols are promising research areas in future. Time is fast approaching for IEEE 802.11 style standardization for underwater network protocols which will lead to interoperable communication devices that can be used in a plug and play fashion similar to terrestrial wireless systems. REFERENCES [1] J.Catipovic, D.Brady, S.Etchemendy, â€Å"Development of. Underwater Acoustic Modems and Networks†oceanography ,vol 6,pp112-119,mar 1993 [2] Omar O. Aldawib†A Review of current Routing Protocols for AdHoc Underwater Acoustic Networks† pp 431-433 aug 2008 [3]E.M.Sozer,M.Stojanovic and J.G.Proakis,†Underwater Acoustic Networks,† IEEE J. OceanicEng.,vol.25,no. 1, Jan. 2000, pp. 72-83. [4] K .Pahlavan and A.H Levesque,wireless information networks,New York,wiley,1995 [5] T. S. Rappaport, â€Å"Wireless Communications†, Englewood Cliffs,NJ: Prentice Hall, 1996. [6] A. J. Viterbi, â€Å"CDMA, Principles of Spread Spectrum Communication†, Reading, MA: Addison-Wesley, May, 1997 [7] M. Stojanavic, â€Å"On the Relationship Between Capacity and Distance in an Underwater Acoustic Communication Channel†, ACM WUWNet ’06, pp. 41 – 47, Los Angeles, CA, USA, Sept., 2006 How to cite Modelling of underwater acoustic communication network, Essay examples

Tuesday, April 28, 2020

Opportunity for Lvmh in China free essay sample

LVMH as the largest luxury producer should take this as an initial factor which will be the greatest potential global environment factor in China’s market beyond 2015. This paper will first focus on the economy situation of China. Then analysis the reason of that Chinese economic growth is significantly link to LVMH development in the future. In the last part, some actions will be discussed in order to advise LVMH to get massive market share after economic recession from the new emerging market. Global environment factor in Chinese market Chinas economic always maintain strong growth momentum. This has become the focus of world attention to China’s, especially during the economic crisis. From 2001 to 2007, Chinas economic growth, measured in gross domestic product (GDP) always maintained a high growth rate, and the growth rate climbed year by year, accelerated from 8. 3% to 14. 2%. In the 2008 economic crisis outbreak situation, though growth slowed, but still kept in more than 9% of the high level. We will write a custom essay sample on Opportunity for Lvmh in China or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Contrast with the United States and United Kindoms negative economic growth, Chinas performance is surprised. Graph 1, which shows by The World Bank (2011), illustrate that, in economic size, China is surpassed today only by the United States, in current exchange rate. And China already accounts for approximately 9. 3 percent of world GDP. Geoffrey Murray (1998) defined China as the next superpower. An article named the China Price (2004) said U. S. industries are inflicted by destroyed Chinese competitors, from kitchenware and car tires to electronic circuit boards. The future may be predicted by Chinas GDP growth rate in the past. In 2015, Chinas economic size will likely more than the United States. pic] Graph 1: GDP (current US$) Data from World Bank. Why this factor is important? There are three main elements make the economic growth become the decisive factors of LVMH in China. The first one is citizens do have money to buy goods produced by LVMH. The LVMH products positioning is luxurygoods. Luxury is a type of goods that beyond the range of people existence and development needs. It has distinctive features, such as unique, scarce or exotic. It is beyond the basic needs of consumers. So it is expensive. Customers need a certain economic strength to buy. Because of the growth of economy, Chinas urban residents income maintained a rapid growth. According to data released by Chinas national bureau of statistics: national urban per capita disposable income reached RMB19109 in 2010, increased 82. 1 percent by 2005 (RMB10493). Deducted price factors, a real increase rate is 59. 0 percent. The average annual real growth rate is 9. 7 percent. An article from Wireless News (2011) stated that the number of Chinese high net worth individuals grows rapidly, the number in 2011 is already two times as 2008, growing to 585,000. In China, people can be called high net worth individuals must have more than 10 million Renminbi in individual investable assets, or the equivalent of $15,00,000 of assets. The two aspects data demonstrate that the number of available consumer increased more than twice in recent years. If Chinas economy continues with an expected growth, the number, which can be used by LVMH, will also double after 2015. The second element is people expecting to buy luxury goods. The increasing of the economic strength give consumers more opportunities to travel or accept education in western countries. According to the COTTM 2012 (n. d. ) â€Å"†¦one remarkable change in 2010, with China (US$ 55 billion) moving up into third position, overtaking the United Kingdom (US$ 49 billion). China has shown by far the fastest growth with regard to expenditure on international tourism in the last decade, multiplying expenditure four times since 2000. Ranking as the seventh biggest source market in 2005, it has since overtaken, respectively, Italy, Japan, France and the United Kingdom. † For the abroad students, the data also increased rapidly in recent years. Yang Ning (2011) demonstrated that the number of Chinese students abroad increased around 20 percent per year on average. According to statistics released by the Ministry of Education, from 2009 to 2010 academic year, the number reached 229,300 in total. It is 30 percent higher than the previous year. All these people who have western life experience affect by the western philosophy of life. Especially the abroad students, subtle change the attitude towards life, improve their requirements of the quality of life. They are more likely understand and love the philosophy expressed by luxury, like the â€Å"art of travel†. They also transfer these cultures to other potential consumers. As a result, the demand of the whole market improved. Compared with soft luxury market in western countries, Chinese rising is a vigorous and potential growth market. According to the classic life cycle theory, western luxury industry has set up a file in the maturity stage. This stage is a relatively long period. In this period, a few manufacturers, which survived in the competition of the industry, monopolize the market, each manufacturer has their own proportion of the market. The chance of changing share proportion in the market may be small, due to close to each other. However, Chinese luxury industry is in the growth stage. In this period, the market demand is beginning to rise. The market need to have a certain marketing and financial strength enterprise (like LVMH) to gradually lead the market. The new industry products can gradually gain the characteristics mass welcome or preference of its own after the right business activities. New industries also will prosper. Predicted by Boston Consulting, China is expected to promote to the first luxury market in the world in 2015. It will be 32 percent share of total global luxury goods market. This is a remarkably chance for LVMH to gain the competition advantage of the market. What should we do? In order to benefit from this opportunity of economic growth movement, LVMH needs a lot of new strategies in China. There are four points may be can used by LVMH. First of all, according to the different depth that familiar by Chinese consumer on different brands of LVMH, bloc choose the right strategies to improve brands awareness. It means China is a fresh country of luxury consumption, the degree of understanding brands is not high. But for the luxury goods which express the status and represent the high quality, brand awareness is a crucial aspect. In LVMH, people are only familiar with few brands, like Louis Vuitton, Parfums Christian Dior, Givenchy and Hennessy. These brands, especially for Louis Vuitton already has certain market share in China. However, for the other dozens of brands, their name may never heard by Chinese customers. This leads to LVMH’s restricted sales. Bloc can try to rely on the awareness of Louis Vuitton, introduce other different brands. These brands are in the same group, but have different styles, for example Loewe, Celine, Berluti and so on. We also can introduce other wine brands with Hennessy, which have the same quality and different taste. For instance, Domaine Chandon of the California flavor, Bodegas Chandon of the Argentina flavor, Domaine Chandon of the Australia flavor and so on. Let different preference customers have more suitable products for their choice. It is using internal cross-brands cooperation to promote the overall effectiveness of the group. In addition, it is necessary to develop the market in tier two cities. Yuval Atsmon, Vinay Dixit, Glenn Leibowitz and Cathy Wu (2011)stated that Chinas purchases of luxury goods mainly concentrated in the higher income people, this part of peoples residences are transferring to tier two cities. At present, Chinas first cities are crowd of population, and the air is unfresh. People living in any corner always feel pressure. The second city, such as Jiangsu, Sichuan, Fujian, Chongqing, there local people happiness index is higher than the economy developed cities. This multitude who has higher income Pay more attention to the quality of life, they plan to move to second cities. Discovering second city market and establishing stores in tier two cities may first occupy this group of customers. Moreover, transfer the information to target population. Chinese travelling to Hong Kong, Macao and overseas is the purpose of shopping for more. The reason is they can enjoy duty-free treatment. Tariff improved these products sales price in China. The price of commodities which bought from outside the mainland, plus travel and accommodation costs, are still cheaper than bought from the mainland. KPMG (2008) survey data showed that the number of the crowd have increased, compared with 2006. It has accounted for about half of the luxury consumption. Actually, this group of people lack of product information and promotion outside the mainland. Aim at this group of people, LVMH propagandizes their new overseas product and promotion. The organization will gain a competitive advantage, result from people’s target products and preferences before go out. Finally, strengthen Internet sales, establish the customer database. The Internets biggest advantage lies in the information flow, update speed, and consumers personal information collection. Through the Internet, building customer database is the effective method to improve sales. Especially for its department stores, duty-free airport outlets and specialist shop sales. Customers who has purchased behavior and no buying behavior can be separated. One part is to take members, club and other forms for those target consumers and potential consumers, make sure they keep for a long time loyalty of our products. The other part is take experts online qa, email or dm sheet in the form of enterprises to promote the feature and sold products newly activities and more valuable services. These activities are for people who never had bought these products, but have landed, and browsed the web site. It aim to improve the companys reputation. At the same time, company also can consider building a platform for communication, which conducive to three parties (current consumers, potential consumers and sale). For instance: the product usage exchange area, discussion blog and so on. Result from the three parties communication, the brand awareness can be improved, desire of shopping can be stimulate, and the purpose of increasing sales can be achieved.