The Beginning of Infotainment Essay Example for Free

The Beginning of Infotainment EssayInfotainment has slowly taken over the parole. It affects our vote, what we watch, and what we choose to hear. In my paper I allow for discuss where documentary started, infotainment in the word of honor, how infotainment is used, and the news we do gain. Thus the enquiry where did infotainment begin? Infotainment according to Kathleen Maclay of Public Affairs from the University of California Berkeley dates back to the days of benzoin Franklin. Infotainment was used in the days when Ben Franklin and his companion James printed songs ab step to the fore topical subjects. One example that Ben Franklin used infotainment in was a ballad The Downfall of Piracy in 1719 according to regular army Today (Society for the packaging of Education). Today infotainment is used in real news and has been make loven to get their stories from infotainment sources like TMZ. Infotainment is most of right aways news. The reason I say this is because ther e are many infotainment shows that are highly watched. The to a greater extent watched television ones are Extra, TMZ, The Insider and many more on cable like The Soup.These shows are highly watched for entertainment and some periods even quoted on actual news. Many other infotainments shows quote from People cartridge holder and Vanity Fair. News shows will keep their audience by showing clips of the infotainment in the beginning clips of the news hour and thusly show the taradiddle at the end of the news hour. TV news shows compete to keep their audiences. The competition is getting fierce with 24 hour cable news networks and the internet. The study new networks take over even included infotainment in the news.According to an article The Dawn of a New Era in Infotainment by Jonah Goldberg of National Review Online CNN was known to talk about an Obama skit that was aired on SNL. Now whether CNN checked the facts or not it was good TV time that would attract viewers. Frankie Ri ch from The New York Times calls infotainment a mediathon. After reading the article which was written in 2003 seven years ago not much has changed about mediathons. A mediathon a relentless hybrid of media circus, soap opera and tabloid journalism we digest come to think of as in all Calamity All the Time.The latest being the scandal with Tiger Woods and the women he allegedly slept with. Rod Blagojevich the former Governor of IL turned into infotainment after airing on Celebrity Apprentice and his wife airing on the TV show Im a Celebrity, Get Me out of Here. The name of the article is How 15 minutes Became 5 Weeks written by Frankie Rich from The New York Times. The title itself is very true in our media and news industry. If you are a celebrity, governor, or athlete and you are involved in any kind of scandal the media will eat you, digest you, and then scavenge you back up for more.For example more recent ones Michael Jackson, Chris Brown, and Sandra Bullock Michael is gone but still being spoke about his sexuality and children. Chris Brown another(prenominal) singer is still in infotainment about his court case from when he hit Rihanna, and the newest Oscar winner Sandra bullock and her husband cheating on her. Mediathons have an effect on ratings and readers and many companies will pick up that mediathon to keep their readers and viewers. If they dont do it their audience can easily go someplace else. Like I had mentioned before competition is fierce.When politics come into the news populate disembodied spirit to media to see what is happening and feed off of the information that is given. When it comes to election time media can have quite an impact on how the people vote. The people look to news for facts as they should. It is the job of the news to inform the people. Others look towards infotainment shows like Oprah and Jon Stewart. In the article from Slate. com Democracy for Dummies by Jack Shafer he talks about how politicians use entertain ment for their gain.Shafer speaks on how President George W. pubic hair and John Kerry appeared on a number of shows both day and night shows. Laura Bush appeared on The Tonight Show, and Larry King. John Kerry appeared on The everyday Show and John Edwards, Kerrys running mate, has made appearances on Live with Regis and Kelly, The View, and The Tonight Show according to Marc Ransford Media Relations Manager author of the article Bush, Kerry Using pleasure Television Shows to Reach Public.Infotainment media is used to gain the vote of those readers/viewers. Obama is a good example of his method he used his time towards the younger and middle class voters during campaign. Obama appeared on Oprah and she spoke about him being president on her show October 18, 2006. Oprah a year later did speak in opt for Obama when he was elected to be president at a Rally December 9, 2007 thedailymotion. com. Oprah also spoke for President Obama when she appeared on Larry King Live whitethorn 3, 2007. As everyone knows Obama did win the election making a mark in history. He still uses the media to answer questions and try to stay in favor of Americans.Obama has had 158 interviews 90 being on television 11 on radio and the rest of the 57 were newspaper and magazines Knoller, Mark Obamas First Year By the Numbers. The audience will continue to choose what they want to hear than what we need to know. Infotainment is winning against news the question is how did this happen? In an article from USA Today (society for the Advancement of Education) Michael Medved has quite a bit to say on this topic. Medved says that the audience has let this happen.We continue to choose to watch entertainment rather than the news. The news that we do receive is usually the bad than good. In 99 73% of news lead stories were of violence or natural disasters. Not much has changed in news since then many of the headlines are of violence in schools or natural disasters around the world. Many news di rectors do air these stories for the viewers. In order to keep their concern and keep them entertained. The news networks air what will keep you watching. The meshwork does offer its share of wonderful news.The bad part of reading news on the Internet people will read what they want or what they are in favor of. If you are for the vote of healthcare you are likely to read on how its going to pass not how it wont make it. The Internet gives you options you can click on what you want to hear or know The media in your life An Introduction to Mass Communication pg. 275. To capture the attention of the audience is fierce.Because we have so much technology out today and we have all these options to choose from. What are the news networks to do or the newspapers and magazines that choose to eliver the news that we need to know. I think that the news networks should still include the news that we need and tell the public what we need to know. I have discussed on how infotainment is includ ed in our news today and how it dates back to the days of Benjamin Franklin. How the news and media affect our politics and how the politicians use the media likewise for their benefit. In my opinion I believe that infotainment was created to keep the attention of the audience but I also think it was created to distract the people from the real news.It was created so that people didnt have to think about the negative news that was being told. kind of its easier to forget about it and watch TMZ. The audience is us. We are the people that make the choices. We are the ones that affect the news. So why dont we? If the people chose to discard the infotainment that is being given it would most likely go away. But as long as we feed into the mediathon and infotainment shows they will remain. track to our lack of knowledge about what is really happening.

Food Preservation Essay Example for Free

Food Preservation EssayMen have preserved their foods from ancient times in order to keep the results of harvesting for winter months, for resale, for storage, and for transporting from sea to inland, overseas, or cross-country. To do so, they generally used natures methods, which atomic number 18 drying, parching and fermenting. Parching is the most natural method, but for many thousands of years, others have also been used. Direct fermentation of liquids, usually by the introduction of yeast, has not only preserved liquids but also enhanced their quality, the same of course applying to salting. Smoking has preserved, and sometimes improved both fish and meat. hickory wood is generally used for the fires, and natural juices are contained by a slight coating of wood creosote. It was not until recently that the causes of degeneracy were understood, these being the reactions of bacteria, molds, yeasts and micro-organisms. close to fermentation and molds are, of course, necessa ry in the production of food and drink molds, for example, being used in cheese-making.But the real breakthrough in preservation against the causes of rottenness came, when it was learnt how to deal with the micro-organisms present in all foods and drinks, and which react chemically over a period to produce unpalatable or poisonous food or drink. There are three basic methods. Firstly, food may be preserved by cooling or freezing, to a very low temperature when semipermanent preservation is required.This was originally done by packing in a mixture of salt and ice today, cold storage is big business and refrigeration is a highly-developed science. Dehydration may be bracketed with this method, as the principle involved is the same, namely to suspend the operation of bacteria which requires normal temperatures for chemical reaction. This is why reconstituted eggs cannot against dehydrated, and melted ice-cream refrozen. The second method of destruction is by heat-processes, which dest roy all the bacteria present in food and drink.This process is used forward canning foods in hermetically-sealed containers, great care being taken not to allow the foods or drink s to become re-infested after cooling and before canning. The trio method is to preserve by the addition of chemicals, which control or destroy bacteria. This is merely a follow-up of the old systems of salting, smoking and candling. Eventually, the method of cold sterilization is expected to supersede most of the others this amounts to exposing the food-stuffs to ionizing radiation.Today more than mere food-preservation is sought by the consumer, and for this reason, processes are becoming more and more sophisticated. Quality, economy and convenience are sought by modern man especially modern woman convenience is important, the ready-cooked meal is popular, while, in Western, or Westernized communities, goods do not sell soft if they lack color, a good appearance, natural flavor, the right texture, a nd are free from defects.

History Of The Hotel Industry Tourism Essay

memoir Of The Hotel Industry Tourism EssayThe hotel intentness is any types or forms of work which relates to providing accommodations in lodging, food and beverage and a enormous variety of services that are interrelated and organised which are intended for public service.Hotels offer enormous range of guests services such as banqueting, assemblage and fitness, sport and facilities, beauty spas, bars, sophisticated restaurant and others. The hotel sector consists of more(prenominal) than 15% of all the people who worked in the hospitality sector. Hotels falls into a number of several(predicate) categories which includes the glamorous five-star resort international luxury chains, trendy boutiques, country house, conference, leisure or guest houses. This very dynamic sector offers good quality accommodation, large(p) variety of food and beverage, together with other services for all types of customers. The hotel sector is always striving to offer excellent customer service thr oughout its operations.History of the Hotel IndustryThe hospitality painss history can be traced back by the end of 1700s in the Colonial Period. This industry has been the subject of important development everywhere the years as it has faced many obstacles such as the World Wars, the commodious depression, the industrial revolution and other social changes. However, the hotel industry as seen nowadays in its modern concept took place in the 1950s and 60s.The idea of renting an accommodation to visitors appeared since ancient times, and the modern concept of a hotel as we go to sleep deducted 1794, when theCity Hotel opened in New York City the City Hotel was claimed to be the first building designed exclusively tohotel operations. Other similar hotel operations postdate the trend and appeared in other cities such as Philadelphia, Baltimore and Boston in 1809.The 1760sindustrial revolution has much lead to the emerging of hotels everywhere, mainly in England, atomic number 63 and in America. The advent of overbold ways of transportations, hotels and resorts outside of major cities was built in the countryside and began promoting their scenery and other attractions. The concept of the vacation was developed and available to more and more of the population. In the 1920s, the construction of hotel took a boom phase where many well-known hotels were opened. As from that period a flow of famous hotels flooded in America and the rest of the world with prominent brand such as Radisson, Marriot, Hilton and more others.Organisations representing hotels worldwideThe Tourism industry worldwide has generated billions for recipient countries, making the phaetonry industry one of the to the highest degree successful sectors in international trade in services. Often facing economically difficult times there has been the mankind of several world organisations to monitor progress, promote and developed sustainable tourism in the hotel industry. The following are som e of the world organisations representing the tourism and travelling industryi) World Tourism Organisation (UNWTO)The (UNWTO) is one of the United Nations agencies, which is accountable for the advancement of responsible and sustainable tourism. Being the Word leading organization in the tourism sector, UNWTO promotes tourism as a mean for economic growth, development and environmental sustainability and offers the monitoring and assistance to the hotel sector in creating market knowledge and promotes competitive orbiculate tourism policies.ii) International Hotel Restaurant Association (IHRA)TheIHRA is an international association representing the welfares of hotelandrestaurant industries. IHRA main members are national hotel and restaurant associations which are located worldwide. Their main agency is the monitoring of international agencies in the tourism industry. It comprises of 300,000 hotels and 8 gazillion restaurants, this represents 60 million people who worked in the sector and raise more 950 billion USD annualiii) HSMAI Hospitality Sales Marketing Association InternationalThe HSMAI is the largest international association of travel sales and marketing professionals. The association have over 4,000 members from different travel and tourism organisations including hotels, resorts, airlines, cruise lines and others in 31 countries worldwide, with the purpose of improving sales and marketing, education and management skills in the hospitality organisations worldwide.iv) TheWorld Travel Tourism Council(WTTC)The WTTC is a orbiculate authority which caters for the economic and social impact of Travel Tourism. Its main aim is to support sustainable growth in the industry, while working in collaboration with different governments and international institutions to generate employments, to boost exports and to bring prosperity.Growth of Hotel Industry WorldwideThe rise in levels ofincomeand standard of livingbut similarly coupled with an increase inleisure time has been especially beneficial to the tourism industry. The advent oftechnological progress particularly through higher cleverness cruise ships and aircrafts,computerized reservation systems, better road transport facilities have played key roles in the global growth of hotel industry. Moreover, improved productivity has been encouraging to the industry by aiding to reduce costs and making travel and tourism products more accessible and affordable.As competition in the industry increases worldwide, the customers have reap great benefits in terms of lower pricescoupled from a wider choiceas the organizations have todifferentiate their productsfrom the crowd to attract niche market but excessively to struggle to enhance and improved the quality of their services. Implementing new strategies to marketing and promotion and advance(a) products are increasing the demand for destinations.Thegovernments as a facilitator, fund supplier and legislatorhave also had played it s part on the development of the industry. New consumer needs and attitudeshave also driven the growth of specific segments, for instance new tourism concept such as medical tourism and ecotourism are booming. Moreover, the increasedlevel of economic activitywhich has led to an upsurge in business travel and also the rising tendency of international movement.In fact, even though there is the presence global economic challenges, the developments of hotels keep progressing, with additional innovative rooms being injected into global room supply by independent hotels and hotel chains.StatisticsAccording to the UN World Tourism Organisation, in 1950 the international tourist arrivals was at 25 million in 1950 is now set to surpass 1 billion by end of 2012, with an 1.8 billion worldwide arrival by 2020.In the seed of 2012, the World Travel Tourism Council (WTTC) estimates that global growth for the Travel Tourism of 2.7%, slightly downgraded from the 2.8% than that was expected for th e industry.The trend for Travel Tourism figures has been positive for the beginning of 2012 and has exceeded anticipations from the start of the year. Global tourist arrivals have progressed to 4.9% in the year 2012 from January to June, whereas airline passenger traffic is up 6.8%, and hotel occupancy rates are growing in most markets.In the year 2011, the Travel Tourism industries accounted for 255 million jobs globally generating 9 per cent of world GDP while generating billions for host economies explaining why this industry plays a significant role in global investment and economic growth.Statistics unveiled by the World Tourism Organization (WTO), in 2008 shows than an estimated 924 million worldwide tourist arrivals, shows an increase of 1.76% compared to 2007. In 2009, international tourist arrivals experience a fall of 882 million, representing a worldwide drop of 4.4% over 2008.The world destinations witnesses a total of 600 million arrivals, and tourist arrivals in the whole world fell by 7% in the beginning of year 2009, but the trend have been rather been besotted in recent months. These recent results and combined economic data, confirms UNWTOs initial forecast a 5% fall in global tourist arrivals during the year 2009. Moreover, the global tourism in 2011 increases by 4.4%, attaining $980 million international tourist arrivals. The estimation for 2012 according to the UNWTO expects a grow in the sector but at or so a lower rate, but allows to touch the reach of 1,000 million international tourists by the end of 2012.

Looking At Wireless Power Transmission Information Technology Essay

Looking At piano tuner Power Transmission Information Technology EssayWireless(prenominal) advocator transmission is the process of transmitting electrical ability to an electrical load, from a rootage emitting motive without interconnecting wires. The radio pass catcher guide of electromagnetic animation as in different forms like audio format, video format and data format is common nowadays but radio set might transfer technology is still years ahead. Even though the idea was true 100s of years ago and scientists atomic number 18 still working on the topic an cost-effective means for receiving set transfer of proponent is yet to be developed. The development of highly efficient WPT technology will be a breakthrough in the history of wireless transmission as it allows lots of port open devices to be charged without plugging on to a socket or docked to a charging station.The development of WPT serves to be exampleful in many ways, as transmission of power in hazard ous environment is wasteful and dangerous. The WPT differs from the wireless transmission of tele converse signals as the WPT takes into considearned run averagetion the efficiency literary argument where as in the latter the vigor parameter is signifi spatet al wholeness if the signal is distorted in such away that it cannot be distinguished. The WPT is economical if and only if the teleph star pass receiver receives the same amount of energy catching by the source.The direct induction method is the almost common method utilize for the WPT and is be use for short withdrawnness WPT, but it had disadvantages and was overcome by later technologies developed like the resonant magnetic induction method, electromagnetic radiation methods like micro-cook ovens and optical masers. The youthful era where the ideology of high efficiency in practical circuits comes to existence, the WPT technology proves wrong overdue to the low efficiency of the developed technologies. The WP T technology in industries by electromagnetic radiation is possibly only remote in the design and most of the industries argon looking forward for better designs for better efficiency in power transfer. Most of such design lags the property of safe gracious environment for living and the economical barriers. A design of WPT system which overcomes these factors is still to be worked out and is being experimented throughout the serviceman.Why Wireless Power Transmission (WPT)?The studies throughout the world has proven that most of the electrical energy transfer is through through the interconnection wires and lots of energy is lost during the transmission due to various internal and external factors like the resistance of the wires the material of the conduction wires, the surface of the wires, the atmospheric conditions like temperature, humidity etc. On an average floor the loss of power due to transmission through wires is calculated to exceed to be more than 30%. This is whe re the WPT comes into action , the WPT is highly reliable, fast , low cost for the maintenance and can also be apply for short shop and tenacious range distance transmissions. These factors pop-in the idea for WPT.History of WPTThe WPT history can be traced from the early 19th century. The first electromagnet was developed in the year 1825 by William Sturgeon which coat the way for the discovery of principles of magnetic induction in the year 1831. This was followed by the demonstration of transmission and reception of electrical energy without wires to connect the point of offset and termination by Nicholas Joseph Callan using the above two developments. These experiments thus far though demonstrated was successful but in practical cases was always kept to a lower place suspicion which was due to the interpretance that it was not doable for long distance transmission and fear of sanctuary.The invention of transmission of very and ultra high frequency receiving set waves d edicated to Heinrich Hertz followed the revolutionary development of the wireless electricity transfer by Nikola Tesla in the year 1891, on which he took the patent-ship for illuminating the bulbs wirelessly. Nikola Tesla is called as the lead up of the induction techniques as his technique was based on induction method. His vision of WORLD WIRELESS SYSTEM which inculcated the idea of people accessing the free energy. He even planned to set working a 187 feet tall tower for broadcasting energy but was put down due to lack of funds. The experimentation in early 20th century was successful in transmitting power over a distance wirelessly but was not able solve the difficulty of power loss due to hindrances. In the 19th century WPT passed through various phases of technological developments. Even after 100 years the idea of Tesla is being used by the MIT scientists led by Soljacic for their project named WiTricity.Different technologies of WPTNear- welkin techniques The techniques f or short distance transmission of power wirelessly. Mostly the induction methods atomic number 18 used for near-fields. These techniques be as follows.(1)Inductive junctionElectromagnetic induction is a process whereby a conductor placed in a changing magnetic field results in the production of potentiality across a conducting plate. This voltage in-turn generates an electrical catamenia called the induced menses because the current on the second conductor is induced by the first. In the inducive coupling technique the prime and the supplemental atomic number 18 not connected by wires but the energy is transferred by mutual induction. correlative induction refers to the generation of EMF in circuit due to a change of current in nearby circuit.Electromagnetic increases with the increase in current, the voltage in the conducting plate responsible for the magnetic fields and also the increase in the frequency. The energy is transmitted from the conducting plates which is resp onsible for the fields to another conductor termed the inessential where the fields impinge on. A part of the energy on the primary(a) is passed inductively through space decreasing the energy in the primary and imparting energy into the secondary. High frequency currents argon not liable to pass the current for long distances but transfers energy by induction rapidly to the adjacent or neighboring conductors. Lower the frequency of the current less preponderant becomes the effects of induction. The phenomenon is classified more local, if the energy decreases rapidly in the circuit causing the current in the circuit to die-out. In the space outside the conductor the phenomena results in dielectric stress and steady magnetic condition for continuous current and change for alternating current comment. For the telecommunication channels the magnetic and electric fields outside conductor is only considered for the transmitting and receiving of messages. Transformer working is the s implest example for WPT.A current which is varying in the primary generates a varying magnetic flux in the core of the transformer which results in the varying magnetic field in the secondary. This field induces a varying voltage or EMF(electromotive force) in the secondary. This is termed as mutual induction. It should be noted that most of the energy transferring devices are usually song-cored. in that respect are many examples of air-cored devices, such as the wireless charging pads, electric brushes etc.Induction coupling is the underlying principle of charging of an electric toothbrush. The input current through the primary winding creates a magnetic flux thus a magnetic field. When the toothbrush is placed in the charger, a current is induced in the secondary by the magnetic field, which is connected to the batter of the brush and thus recharges the battery.The wireless charging of the portable devices of great advantage as it is comfortable to use, shock proof and less usag e of wires which is more economical.The figure() shows the picture of an wirelessly charged toothbrush.The principle to recharge several devices at a snip is similar to that of the charging of electric brush. The Splashpower recharging mat and Edisions galvanising PowerDesk are few examples. The WCP (wireless charging pads) are devices that are devised for the charging the battery automatically when placed on it. There is no connection with the wires between the charging pad and the device battery to be charged. The technique of induction to transfer energy is utilized in this and air acts as core.Resonance Inductive brotherhoodIt is the cabal of resonance principles along with the inductive coupling principles. When a relatively low frequency close to the same frequency of vibration as the natural frequency of system being resonated produces gigantic amplitude of vibration it is called resonance. Two disapproves or bodies are made to strongly interact with each other during t he time of resonance. It is also noted that an objects physical social organisation determines the natural frequency of vibration of the object. Objects vibrate more slow at resonant frequency than at other frequencies. We know that magnetic flux developed due to the passage of current in the primary creates a magnetic field which induces an EMF in the secondary and thus current was the principle of inductive coupling.Working principles of Resonance Inductive Coupling.The coil in the fig() provides the inductance when the circuit is supplied with voltage. The induction takes place in a slight different manner when the electromagnetic fields surrounding the coils start to resonate in the similar frequencies. The inductor used here is a curved coil wire. We also see a capacitance plate attached to each end of the coil to hold the charge, that is a capacitance, is connected in parallel to the coil on both sides that is the primary and the secondary coil. When electricity is passed th rough the coil the coil begins to resonate. The evocative frequency is the product of the capacitance of the plates and the inductance of the coil.Electricity which travels alongside the electromagnetic wave tunnels from the source coil to the tar tucker coil, if both of the resonant frequencies are the same, where resonance is a function of the product of the capacitance connected in parallel and the inductance of the coil. impairment of energy or power due to radiation is negligible in this case.If the two coils to be linked are out of range of one another, in that respect occurs no transmission of power as the fields are not strong enough to carry on the surroundings. This is the same affect when two coils which are resonating at different frequencies exists. Considering two coils resonating at the same frequency to be in the same range, energy streams moves from the transmitting to the recipetant. This theory also provides the functionality of more than one receiving coil in the same range operating at the same resonant frequency to function. This type of energy is termed as NON-RADIATIVE ENERGY exaltation as it involves the nonmoving fields surrounding the coils more than the fields spreading in all directions.Advantages of Resonance Inductive Coupling (RIC) over Inductive CouplingCompared to inductive coupling the efficiency of RIC is very high.The range of RIC is much greater than compared to the inductive coupling, range for inductive coupling is below 5 cm whereas for the RIC it in the range of few meters.The directivity of the RIC is mountainousr compared to the inductive coupling.RIC can utilise in one-to-many format, but the implementation of inductive coupling is generally one-on-one format.The devices implemented using RIC are easily portable compared to that of the inductive coupling gadgets. This is because of the small size of the component structure and the ease to use. crease IonizationIonization of air refers to the process of impart ing charges that is negative or positive charge to the air molecules by the application of high voltage. In this method of transferring the electricity, the charged particles that are the anions or cations move from the source to the target concluding through the atmosphere, by imparting charges to the air molecules. This technique even though seems to be simple in construction, it is the most toughest and un-economical method of transfer of power in the near field techniques.The disadvantages are really more in this technique because minimum field strength of 2.11 Megavolt is involve to transfer the electricity over a distance of 1 meter, which is very high potential difference to be created. There should be a static atmospheric condition for this technique to be implemented and mostly the dust particles in the atmosphere can also affect the transfer of electric power, from one terminal to the other terminal.The natural example is the lightening which occurs. So taking into consi deration all the negative points which overcome the advantages, it can be concluded that Air ionization method for wireless energy transfer is not feasible for implementation.Advantages of near-field techniquesThe absence of wires is being considered as the greatest advantage.There is no presence of e-waste.The contract for battery is suppressed to a certain extent.Efficient energy transfer using the RIC up-to a distance of few meters is possible.The methods are harmless, if the strength of the fields used are under safety levels prescribed by the standards prescribed.The maintenance cost is considerably low for the devices in the near field techniques.Disadvantages of near-field techniquesOne of the main disadvantages of the near-field techniques is the distance. This technique implies the wireless transfer of energy only for a short distance.It has to be taken care of that, the strength of the fields developed should be below the safety level so that it does not affect the human safety.The initial capital for setting the circuit is considerably high.The tuning of the RIC circuit is a difficult lying-in and consumes more time.The signals to the supply should be having high frequency because the induction is proportional to the frequency of the signal supply.The air ionization process for the near-field technique is not a feasible technique that can be implemented for the wireless transmission of energy.Far-field techniques for wireless power transmissionFar-field techniques for WPT refer to transfer of power from one terminal to another terminal which is kept far apart. The techniques used for near-field transfer are not viable because the efficiency will be tending to zero or almost zero if implemented by those techniques. That is the power received at the receiving terminal will be zero.There are mainly two types of techniques used for the energy transfer in far-field techniques they are as followsMicrowave wireless power transferThe electromagnetic waves that are arranged in between the invisible spectrum and the radio wave spectrum are termed as microwave. Their frequency ranges in from 300 Mega hertz to 300 Giga hertz. They are used for a wide range of applications such as Bluetooth, wifi, microwave Owen etc. The frequency range of microwave is in between 1 and 40 GHz which is generally used for applications.For long distance transfer of power, microwave is one of the best medium used. The microwave band is generally used because antennas of convenient sizes that are able to transmit and receive the microwave signals and also the metal waveguides for carrying the radio power works are available. Besides this the technologies in electronics where millimeter waveband is required the microwave proves to be helpful. This is because in millimeter wavelengths the radio waves are attenuated while the microwaves are not. The microwave was used for transmission of power for various applications such as running of the unmanned chop deve loped by Americans, powering the outer space vehicles etc.There are mainly three steps involved in the transmission and reception of power by MPT.Step1 The conversion of electrical energy into microwave. After this process the microwave is emitted with very-high power emitters called the cavity magnetrons.Step2 The microwave is then captured using a rectenna. The rectenna is a combinatorial circuit consisting of rectifier and an antenna.Step3 Microwave energy is converted to electrical by the rectenna.In the process of transmitting microwave, the AC supply needs to be converted to DC as it is not possible to convert the AC directly to microwave. The process of conversion of DC to microwave is done by magnetron. The magnetron is a highly powered vacuum tube structure that is responsible for the production of coherent microwaves. The rectenna can also be called as rectifying antennae as it converts the microwave directly into DC electricity. Rectenna consists of elements that are so rted in multi element array and consists of pattern reflector element mesh to give directionality. It is easily constructed by placing Schottky diode in between the antennae dipoles. The DC is converted back in the next process using an inverter circuit. Considering the receiver to be a photovoltaic cell, the microwave system for creationbound applications exceeding an field of study limit of diameter size 10 Km the arrays in the receiving station has large power levels in total , limiting the exposure of electromagnetic radiations which is considered for human safety. A stringency of power equals to or less than 1mW/cm2 is considered safe for human environment, and with this density of power for a diameter of 10 km 750 megawatts of power can be generated. This standard value is utilized by several modern power plants in the world.Laser transmission of powerA device emitting electromagnetic radiation by the process of optical amplification on the basis of stimulated emission is t ermed as laser. Laser has high directivity and high head of temporal and spatial coherence which is a unique property of laser that cannot be attained by any other technologies. The laser beams does not get dispersed for long during the time of transmission. The disadvantage of the laser is that it gets attenuated while propagating through the atmosphere because of hindrance due to the dust particles prevailing in the atmosphere.The receiver designed for the laser power transmitter and receiver is simple in design and construction. The laser system is a cost efficient system due to the simple design and structure. These points form positive side for the implementation of the laser system. The receiver in the case of laser system is a photovoltaic cell.The laser system is mainly used when electromagnetic radiation in the spectrum near to visible region that is 10s of nm or microns are to be transmitted, power is transmitted changing electricity in the form of laser beams and then pr ojected onto a photo-voltaic cell which acts as the receiver. The receiver then turns it back to electricity. This is called the power happy mechanism. This is so called because power is forced or beamed at the receiving end to convert the power into useful electric energy. The fig() shows the concept how laser is used for transferring the power to an object in the sky. Here it represents flying objects battery being charged by controlled transmission of laser beams, tracking the object with the help of the radar, and powering the target with the help of laser generating source.Comparison of Laser and Microwave techniquesLaser method requires antennae of smaller sizes compared to that of the microwave technique of power transfer.Microwaves interferes with each other where as laser is highly monochromous and does not interfere (two frequencies used for microwave power transfer are 2.45GHz and 5.4 GHz).Laser gets attenuated and also diffracted due to the particles present in the atm osphere, but microwave is resistant to this.Transmission of energy over a long range is possible due to property of collimated monochromatic propagation of wave-front in lasers but the range of microwave is small considered to lasers.The receiver size of the laser technique is small considered to the microwave method because of the compact size of the photovoltaic components.The laser beams does not affect or interfere the normal radio communication due to the large difference in their wavelengths, but microwave as it has wavelengths closer to that of the radio communication channel wavelength the possibility of interference is more.The photovoltaic cells in the laser receiver is not as efficient as in the microwave receiver as in laser, only 40%-50% efficiency is only acquired.Advantages of far-field energy transferFar-field energy transfer is more efficient.The need for setting substations, grids etc are eliminated due to the large distance transfer ability.These systems require l ess maintenance cost compared to the wired system of energy transfer.The systems become more and more effective if the transmitter and the receiver are along the line of sight.This system can be implemented in remote locations where access is difficult.Disadvantages of far-field energy transfer techniquesThis is radiative in nature so the losses are prevalent due to the radiations.In order to be more effective in working the transmitting and receiving stations must be in line of sight.When lasers are used (1) conversion to electrical energy is inefficient at the receiver. (2)absorption loss is high due to the atmospheric particles which causes attenuation and diffraction in lasers(3) difficult to use in human environment.When microwaves are used (1) interference of two power signals (2) standards should considered for the sake of healthy living environment.ApplicationsNear-field energy transferElectric automobile chargingThe automobiles running on electricity are more common nowaday s as it more environmental friendly, but the storage capacity of these vehicles are limited as it cannot afford huge batteries, so similar to the petroleum bunks, rises the concept of recharging stations. But these recharging stations cannot afford large number of plug-ins, as the density of vehicles increases besides it is a waste of time working with plug-ins in this busy and fast world, so wireless recharging of the vehicles is done in these situations to void waste of time and energy by near-field techniques, besides all these many vehicles can be recharged at a time using resonance inductive coupling.Consumer electronicsIn the world of consumer electronics, the technology changes are really fast. Each technology brings in more compacability and introduces more functionality into the products being manufactured. Such a world essentially requires the introduction of the wireless charging, because it reduces the cost of the wires plugged on to it, increases the reliability of use of the equipment, reduces the total size of the equipment and increases the ease of portability etc. Inductive coupling or resonance Inductive coupling techniques prove to be useful in these cases. Example is electronic toothbrush charger, splash power recharging mat etc.Industrial applicationsIn industries there are processes involving high temperature, hazardous environment created by chemical reactions etc. In such an environment if wires are used for the transfer of electricity if required, it is highly inefficient and at times dangerous, so in such cases only the wireless transfer of electricity is possible, the methods of inductive coupling and resonance inductive coupling proves to be efficient because the hazardous environment or the high temperature does not affect the transfer of energy wirelessly.Far-field energy transferSolar power satellitesIn this era of growing need of energy, our mother earth with all its resources may not be able to supply enough energy for the uti lization for mankind, besides the energy earned from coal, oil etc are causing pollution besides this, these non re currentable sources of energy. So in order to satisfy human needs one of the current technologies for energy harvesting is the solar power satellites. These are machineries working on the basis of the microwave and laser power transmission methods. These helps to efficiently make use of the solar energy, and are placed in geostationary orbits for the efficient working.Solar energy is captured using the solar cells on the satellite where in 400 million photocells are present in each solar power satellite. The energy is converted to microwaves or laser and transmitted to the earth and received at the earth station using the rectenna or photovoltaic cell converts it into electrical energy. The efficiency of the microwave system is more than 95% usually, but for the laser power transfer system the efficiency is around 40% to 50%.The diagram in the fig() shows the working of the solar power satellite and how it transfers power from the supply terminal to the receiver terminal by microwave method of power transfer. This is also called BEAMING DOWN process.Energy to remote areasIn remote location that is places that cannot be accessed easily by people, the transfer of energy by using grids are considered to be waste of money, time and energy. In such cases the transfer of energy through wireless media is only possible. Certain factories which produce hazardous wastes, confidential or secret services offices and plants of nations etc are sometimes located in remote locations are the examples. There are villages to be supplied with electricity located in remote locations government of nations are planning and implementing far-field techniques of power transfer to meet these tasks.Energy broadcasting globallyThe concept of energy broadcasting globally had bought in nations to work together in projects dealing with more efficiently trapping of solar energ y to power up their resources. As solar energy is renewable source and available in plenty the only step left behind is more efficient way of trapping the solar energy. The achievement of this would certainly result in reducing the crisis of energy, and to broadcast the energy globally.One of the famous projects undertaken is based on Kalams (former Indian president) vision which calls in the program for space-farming to contribute substantially for the global energy broadcasting. One such proposal is Pan African e- network.Projects established on the basis of wireless power transfer.Wi-TricityThis was a project done in Massachusetts Institute of Technology on wireless transfer of energy based on the resonance inductive coupling method. The team was led by Marin Soljacic. The team was able to transfer energy wirelessly for a distance of 2m. The coils used for the experiment was verticillate in shape and they never used any capacitor in the experiment. The energy received at the rec eiving terminal was almost 40% of the total input power from the supply.The frequencies used for the transmission of power were 1MHz and 10MHz. The field strengths were safer at 1 MHz frequency for the human environment. The usage of 10MHz frequency, created fields of strength above the ICNIRP (International care on Non-Ionizing Radiation Protection) standards.Rectenna in USThe rectenna bod in USA worked on the microwave method of wireless energy transfer. The rectenna which was spread over one and half mile in was diameter was able to generate electric power of 5000MW. The range of frequency of microwave used is compactable to the ICNIRP standards.Alaska 21WPT can be used for supplying power to rural areas. Alaska 21 project was presented in the year 1993, for supplying power to villages in Alaska. The other sources of energy were not possible to be used because of the limited infrastructure. The price estimate of $40/kWh was done for energy produced by other sources, which is to o high to accommodate. Even cabling to this area was not possible due to extremes of climatic conditions. So a pilot project was conducted which was passed on WPT, not only to supply energy but also to avoid pollution. The system consisted of 2.45 GHz design array and could bridge around 1 to 15 miles. Present status is unknown.Grand washbowl projectThis project aims in supplying electricity to an isolated mountain village in the remote area of the La Reunion Island. This project was developed for making Grand Basin to a tourist village. The project was given complete support by CNES, which is the French space centre. WPT was used as the underlying basis of the project. Planning to build a microwave link which operates at 2.45GHz frequency working over a distance of 700 meters delivers 10kW and had an efficiency of 57%. The whole system worked in combination with the photovoltaic panels and the batteries. Capital of 1 million dollars for 10 kW was proposed and the project was put d own.WPT Demonstration in HawaiiIn the year 2008 on moth of may a demonstration based on WPT was held on the islands of Hawaii. The demonstration was organized by one of the US based companies named Managed Energy Technologies. They were able to demonstrate wireless power transfer up to a distance of 148 km. They were only able to transfer 20 watts of power, which would barely light a fluorescent lamp, because most of the energy were lost during the time of transmission. The limitation of this demonstration was not the science but the capital involved. This project involved less than a million dollar. If the company could countenance afforded more number of solar panels and more phased transmitter array and receivers more than 60% of efficiency could have been acquired.Munich electronica explorationThe Munich ELECTRONICA exposition organized by the automotive, embedded, electronica and the ZEVI forums in the month of November from 9th to 12th in Germany was a real trade off for the electronics products. There were 2595 companies participating in the exchange and almost 70000 visitors took part in the exhibition. The exhibition is being conducted every two years alternatively to the Productronica. There were participation of various companies dealing with different types of electronic goods like the displays, connectors and interconnects, semiconductors, automotive, sensors, passive components, assemblies and sub-systems, wireless, embedded systems, power supplies, test and measurement etc. It is one of the best places where we come to know about different technologies, products and even test the new product to confirm our expectation. The unobjectionable also is business area where companies come for advertising and selling their products. I was able to visit stalls of 37 companies dealing with power supply devices and self-contained informations which I was able to present on the topic wireless transfer of power. Certain companies were doing research works on this topic but were not able to introduce their products because certain defects were yet to be cleared before manufacturing.Companies visitedRRC SolutionsThe company was established in the year 1989, with the excellent management has become one of the confidential information companies in the supplier of power supplies and battery chargers. It has a good platform for the professional applications in medical, industrial, military and consumer products. The company has good wealth of expertise engineers creating new and innovative ideas. The company has its branches in various locations of the world with its headquarters in south west Germany. Its branches are located in USA, Japan, China, Hong Kong etcThe companys products involve battery chargers, power supplies, integrated system solutions, products

The Theory Of Media Richness

The guess Of Media RichnessTo effectively communicate, we must realize that we are either different in a way we perceive the world and usance this understanding as a guide to our converse with others. Anthony Robbins. Electronic dismount is a method of exchanging digital message from channelizeer to receiver. netmail plays an of import role in business today and has become a basic necessity in any brass section just give care paper and ink. It is been used by many as an both-encompassing collaboration platform than a simple confabulations ray of light. According to P.K McBride (2006), World Wide Web is an ever- growing aspect of net profit with billions of web pages. Workers are given unrestricted access to the Web, allowing them to manage their consume research. It nominate facility to copy, reply or away messages ilk document and graphical files to the sender or to the third party. Effective transfer of messages and informations within the organization and amongs t top managers and employees is very essential for the betterment of company.Email is the most commonly used electronic messaging service. Smartphone which includes electronic mail as basic feature has change magnitude accessibility of e-mail. It influence mobile engineering, email has a major impact on business, marketing, medical field and banking. The purpose of this essay is to evaluate Email as communication tool in personal and organizational level. However, this essay firstly define email and its use in organization along with different use of theories for email communications and which includeInformation oerloadSocial cuesMedia richness theoryCritical favorable theoryControlling effectFrom above all the theories, Media Richness possibility is the most effective for business communication as it deals with symbol carrying capacity which refers to face-to-face communication and which is a must for any organization to success and build relationships. This essay focuses on peo ple attitude towards communications and its implementations in ply place with respect to Media Richness theory. Essay explains employees use of email and mobile communication for their personal and organizations purpose and how Computer-Media Communications plays an important role in it. Advantages and disadvantages of the theory are specified with example of BlackBerry and Android. In the end, my own experience of use of mobile email communication is explained in relation to my personal email diary found in the appendix.Implementation of theory and Email communication.Communication military services coordinate and effective control resulting in clear understanding, good production and healthy climate for cooperation among the various levels. Both for personal as come up as organizational use, email have become a part of our everyday lives from communicating with friends, for new job application. Most services on internet whether its neighborly networking or professional ask for email care before using their service. According to Mullins (2010 230), Email has some emotions woven creatively to encapsulate feelings done signs and symbols. It has many advantages like free communication between social groups and in organization which involves communication with employees, clients as well as potential customers. Email help maintain records and archive of business transaction, rechecking past information, file repository, contracts which could be recovered later. It help have a record of your clients database and act as a address books which has all the important contacts that could be conveniently retrieved anytime. The portable gadgets like mobile phones and laptops are able to send and receive emails and help manage your business correct if you are travelling or in another part of the world.The communication tool for evaluating email could be best explained by Media Richness Theory by Richard L. Daft and Robert H. Lengel. According to them it is a frame wo rk to describe a communications medium by its ability to reproduce the information sent over it. It helps understand the impact of different communication media type on message and help reduce ambiguity of communication through proper selection of communication media. It comes from Computer -Media Communication (CMC) and is often associated with business communication by Newburry (2001). Sitkin, Sutcliffe and Barios-Choplin (1992) found data carrying capacity and symbol carrying capacity to carry information. Face-to-face communication would be characterized as rich media while modern information technology such as email could be classified as lean media.It deals with internal communication within an organization context. The theory got upgraded to email and it was considered as a good way of communication in organization. Silverstone in the beginning of the 90s Zhao 2005, put forward idea of Domestication of Technology Theory which deals with how technology gets integrated in peop le daily life and its impact on social environment where as in other hand it deals with communication in business and it is based on contingency theory and information processing theory. E.g. if a manager need to remind its employees about an upcoming meeting then which communication medium should be used to inform and send the message face-to-face, telephone, memo or electronic mail? Such communication choice in organization varies from its level of ambiguity.Employee can be updated and get affiliated to top management through emails, and can too get latest news reports and this could be obtained by effective use of this Theory. Proper training and guidance is very much essential for introducing new technology at work place for obtaining complete employee involvement in the organization. An employee can obtain many different types of mails such as personal emails, emotional mails from friends and relatives, social emails involving some event or activities, professional mails wit h job interviews, notifications of ads etc Face-to-face communication medium is the richest one followed by email, telephone, memos and letters (Rice and Shook 1990).Advantage of Media Richness TheoryAbility to reproduce information.Sender chooses a communication medium.Reduces uncertainty and equivocality.Help improve employees performance.Disadvantages of Media Richness TheoryChoice of media is done by assumption of discerning decision making.Actual use of media and social influence is not reflected.Ignores use of symbolism in communication.Theory is devised before the widespread use and developments of email.Mobile users like to get their mails in their mobile devices and which launched the mobile email solution with BlackBerry. The handheld device helps receive and send mails wherever they are and help stay employee connected and could give immediate feedback as soon as possible. Another example is the Android Operating System in modern mobile system which provides users to do array of operations as it can run multiple applications at the same time, multitasking and is more fluid than other cell phones.Mobile email allows composing, forward and responding to emails exactly in the same way as on a personal computer. With the fast spread of mobile email, it is getting integrated in our social and work life as it has potential to impact the way employees use email and work together. Mobile email is now becoming an important tool for mobile workers for effective communication, coordination, collaboration and to handle complex situations on move hence resulting in improved relationship with customer, co-workers and supervisors.After critically analyzing my own email for a week, I have found that the use of mobile email device for communication has some advantages as well as some disadvantages. In my survey, I have received mails from social network sites, personal mails, job vacancies and notifications. Mobile email help keeps me connected with the world and h elp to be updated I could check my mails on a move and even reply to some important mails. For example there are situations when I receive irrelevant mails like advertisements and junk mails and I read them thinking its important and hence waste my own time. When I am on move and expect some important mails to arrive and then battery dies or I misplace my phone then it can give rise to major problem. Devices could be easily broken in or misplaced and could also create privacy invasion towards personal and organizational security. It makes a person so dependent towards it that people spend little time with family and friends. The one main disadvantage of mobile mail device is it has a negative health effect and which a major problem in todays busy life.ConclusionCommunication is very essential for any organization to build relationship and for its success. The use of mobile device for email is been adopted by people for personal as well as for organizational purpose. It helps recei ve mails even when they are on outside their homes or organization. From the critical evaluation, Media Richness Theory is the most effective theory to understand the value of mobile email devices as an effective tool for communication. This theory help organization to select fascinate communication media to communicate with its employees and to stay connected through mobile email devices and an example of such a device is BlackBerry and Android which help send and receive mails at anytime and anywhere. Mobile mailing helps keep a record of their daily activity and also maintains database which enable them to communicate with people no liaison where they are. The Human Resource professionals play supportive role in achieving organisations goals by making employees and technology join together for effective result in work place.The introduction of new technology help raise productivity of work, develop new product and services, innovative thinking and developed method of communicat ion between colleagues and customers. Mobile communication acceptance device in an organization depends on its management and employees and how well they get mixed with technology and its usage. The devices has many advantages like consequence mail alert, help stay connected while move and having peoples record and ease of communication where as the disadvantage include lack of social company and privacy factor. The use of new technology like mobile email for communication in relation to Media Richness Theory is now reaching its senior high and is been adopted by organization for its employees personal and professional use.

The History of Computers :: Technology Technological Computers Essays

The History of Computers In the year 2003, it is almost impossible for those of us who have been brought up with computer to imagine what the gentleman was like before their coming. pile use computers every day in their homes, using the Internet, specifically e-mails and Instant Messenger, to keep in touch with friends and relatives far away. People also use computers every day at work and school, planning projects and writing papers. For many of todays children, computers are an integral part of their education, and whatever of them use computers in school every day. These children benefit from the ideas of many people many years ago, those who laid the foundation for todays modern computer. An analytical engine first described by Charles Babbage in May 1835 was the first machine to possess the five essential functions of a computer (Hofemeister, 1-7). Even though the engine was never completed, its design included the five basic functions of input, pr ogramming, calculation, storage, and output (Hofmeister, 1-7). This machine was an essential part of the evolution of the first computer, but it was certainly non the beginning. In 1642, Blaise Pascal developed the Pascaline a mechanical adding machine, and in 1673 Gottfried Wilhelm von Leibniz developed a mechanical calculator that could perform more complex functions, such as multiplication and division (Hofmeister, 1-8). The machines developed by Pascal and von Leibniz, along with the Analytic Engine designed by Babbage, led to the unveiling of brandmark I, the first operational electro-mechanical computer, which was designed by Howard Aiken in 1944 (Hofmeister, 1-8). Aiken began work on this machine in 1937, using the principles first conceptualized by Babbage (Hofmeister, 1-10). Most of the Mark I was mechanical, which slowed it down, a fuss that was fixed in the Colossus, a computer which replaced the speed of the mechanical components with the speed of e lectricity (Hofmeister, 1-10). This was a major advancement in computer technology. The Colossus Mark II, which was built at around the same time, is believed to have contained all the elements of a modern computer except an internal program store (Hofmeister, 1-10).

Use of Symbolism in Death of a Salesman :: Death of a Salesman Essays

Arthur milling machine is recognized as an important and influential interpretwright, not to mention essayist and novelist. Although he has had plenty of luck in his writing career, his fame is the product of his ingenious ability to control what he wants his readers to picture or feel. As one of his critics states, Miller writes ingeniously, conveying the message that if the proper study of mankind is man, mans inescapable problem is himself (Broussard, 306). Miller accurately puts into words what every person thinks, feels, or worries about, but practically has trouble expressing. By the use of symbolism, Arthur Miller portrays Willys (along with the other Lowmans) problems with family life, the society, and himself in Death of a Salesman. Arthur Miller is an interesting author in the sense that many of his plays consider or are a product of events in his life. He was born in 1915 in New York City and was the son of a successful businessman, up until the Great Depression when his father lost most of his wealth. This greatly impacts Millers life, and influences the themes for many of his future writings. To make ends meet at home, Miller worked as a motortruck driver, a warehouse clerk, and a cargo-mover consequently, these odd jobs bring him close to the working-class type people that will later be the basis of many characters in his plays. It is while he is involving himself in these jobs that Miller forms his love for literature he is greatly impressed by Fyodor Dostoevskis The Brothers Karamazov because it questions the unspoken rules of society, a concept he practically wondered about, especially after the Great Depression. He believes that American society needed to be made over for this reason, many of his earlier plays show sympathetic portrayals and clement characterizations of his characters. In 1956, Miller marries the eminent Marilyn Monroe. This event significantly affects his writing in that he focuses on female characters more than he ha d formerly. He also looked O.K. at his prefigured themes in past stories and expanded or reconsidered them (Martin, 1336-7). Clearly, the roots of his works are the result of important events from his past experiences. Death of a Salesman is a play relating to the events leading to the downfall of Willy Loman, an aging salesman who is at one time prosperous, but is now approaching the end of his usefulness (Atkinson, 305).