The World Of Technology And The Internet Essay - 1246 Words

In the world of technology, the internet has transformed the way we go about our daily lives. Forty years ago, only a few thousand people had access to the internet. Today, the internet is a tool that mostly everyone has access to. With the invention of cell phones, we have the internet at the tip of our fingers. The internet is continuously getting faster and smarter with the help of better developing technology. The internet use to only be used to learn how to build and use networks. With the access of lecture notes and two different articles, there are several different aspects between the internet when it was first founded to the use of the internet now. The growth of the internet will continue to create new technologies that will make it easier for consumers in the future. In 1958, the the Denounce Department created the Advanced Research Projects Agency or ARPA. This was the same time we were fighting in the Cold War. In order to survive a nuclear first strike, the United Sta tes had to find a way to decentralize data and systems control. The internet was a victory for the results of the Cold War. The internet was a survival tool for the United States. In the late 60s, the ARPANET was developed and put into operation in 1969. This advancement opened up new doors for the growth of the internet. ARPANET was the first to use modems, public switched phone networks, packet switching and linked research institutions. ARPANET went international in England and NorwayShow MoreRelatedInternet Technology And Its Effects On The World945 Words   |  4 PagesInternet technology is one of the booming industries in the world. These development increases transform of social and economic results or significance on various perspectives of our daily activities. It provides us with unlimited resource of everything in the world. 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Surprisingly an internet history, security and technology have been overRead MoreThe Impact Of Internet Technology On The World855 Words   |  4 PagesIntroduction Internet history, security and technology are one of our generation technological advancement that influences and moving the world more in to a globalized system. This is my own personal perspective that showed and clearly stated about the benefit of this development and what is the potential negative that influence the world. What is a advantages of internet technology globally ? Surprisingly an internet history, security and technology have been over twenty-year’s sins activelyRead MoreThe Impact Of Internet Technology On The World Essay960 Words   |  4 PagesIntroduction Internet history, security and technology are one of our generations technological advancement that influences and moving the world more in to a globalized system. This is my own personal perspective that showed and clearly stated about the benefit of this development and what is the positive and the negative that potential influence the world. What is an advantage of internet technology globally ? Surprisingly an internet history, security and technology have been overRead MoreKey Features Of The Ultimate Business Disruptors : Internet, World Wide Web And Communication Technologies2226 Words   |  9 PagesIntroduction The introduction of the ultimate business disruptors: Internet, World Wide Web and communication technologies have revolutionized the way business operates and improving the way people as well as the way people and organizations communicate and collaborate paige. The concept of Web 2.0 (Business 2.0) has earned a lot of prominence in recent years since it has positively changed the global landscape of businesses. 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Booming Effect The Baby Boomer Generation Essay

Booming Effect: The Baby Boomer Generation The ending of World War II led to one of the most influential generations today. Young males upon returning to the United States, Canada, and Australia following tours of duty overseas during World War II began families. This brought about a significant number of new children into the world. â€Å"In 1946, the first year of the Baby Boom, new births in the U.S. skyrocketed to 3.47 million births† (Rosenburg). This led to many events such as an increase in housing and the development of the suburb, consumerism multiplying, health care system, issues and a more recent topic: retirement. Men and women had to postpone any ideas for having a family because of the prolonged era of the Great Depression and World War II. In 1945, when World War II ended, the men came home, and they could finally resume their wishes to start a family. Almost exactly nine months after World War II ended, Historian Landon Jones said, â€Å"A cry of the baby was heard across the land† (â€Å"Baby†). By the end of the Baby Boom, children made up almost 40 percent of the nation’s population (â€Å"Baby†). This many children will have an impact on society no matter what. After the literal baby boom, families started moving start the suburb boom as well. The Baby Boom was a great way for developers to start up a business and buy land to make modest homes. This led to developers such as William Levitt becoming the mostShow MoreRelatedcase study 1 hgd Essay1004 Words   |  5 Pagesï » ¿What impact do you think the â€Å"Boomers† will have on the next 30 years in our society? 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Electronic Cooling Free Essays

Undoubtedly that increasing the turbine inlet temperature is an important requirement to increase the gas turbine efficiency. There are external and internal efficient cooling methods were used to protect the blade surface from the failure. The internal cooling was enhanced by using rib, pin fins, impingement and swirl techniques. We will write a custom essay sample on Electronic Cooling or any similar topic only for you Order Now In a swirl cooling, the swirling motion is created by tangential inlet velocity that enhances the heat transfer compared to axial inlet velocity. More researchers studied the effect of swirling technique on heat transfer coefficient at different Reynolds numbers [1]. In this study four turbulence models of standard ?-? model, RNG ?-? model, standard ?-? model and the SST ?-? model were used to validate with the experiment. The validation results showed that SST ?-? model gave a good agreement with the experiment for velocity near the wall and Nusselt number through the chamber circumferential. The numerical results showed that heat transfer enhances in swirl chamber with increasing Reynolds numbers. The authors interpreted an increasing of heat transfer coefficient due to development in the thermal boundary layer and vortices interaction and increases this effect with increasing Reynolds numbers and in addition to increase the advection and the flow became more turbulent, more distortion and diffusion [2]. Also at increasing Reynolds numbers, a large pressure drop and large circumferential velocity generated [2]. Another study to decrease the pressure drop in swirling chamber was performed experimentally and analytically [3]. In this study two outlets were used instead of single outlet. The pressure drop decreased for case of two outlets because of decreasing the vortex strength. At increasing Reynolds numbers, the circumferential velocity and the pressure drop increased. The effect of five inlet jets with one outlet swirling chamber on the Nusslet number and pressure drop was performed [4]. The results showed that the Nusslet number and the pressure drop through the chamber for single inlet jet were higher than the case of five jets in case of fixed mass flow rate. Swirling action effect on turbulence intensity was investigated for single inlet and exit [5-6]. The results showed that the turbulence increases with swirling motion at inlet and decay along the chamber with decreasing the swirl intensity. The effect of changing the exit orifice on swirling motion was studied [7-9]. This study used three different exit geometry; large orifice, small orifice and eccentric small orifice. The results showed that different helical flow structures generated near the wall and around the centerline. Also the swirling number didn’t change significantly with these geometries and with increasing Reynolds numbers. Different swirl directions and number of film cooling holes effects on adiabatic film cooling effectiveness were investigated [10-11]. The results showed that the film cooling effectiveness can be increased or can be decreased depending on these conditions. Comparison study between impingement cooling and swirl cooling over Re of 7500 to 12500 was investigated [12]. They concluded that the swirl cooling and impingement cooling matched at high mass flow rate moreover the heat transfer distribution in the swirl cooling is more uniform in the axial direction. Another study investigated the augmentation of heat transfer by swirl cooling techniques in slot shaped channel with aspect ratio of 3:1 and jets issuing from side walls [13-15]. They used different configurations to enhance the swirl flow in the channel. The effect of flow redirection on the heat transfer by using three different outlet geometries; straight, tangential, 180Â ° bend outlets was investigated [16]. The results showed that the heat transfer was higher by four times compared to an axial flow, but without significant changes in heat transfer for three swirl cases. The double swirl chambers with single and multiple inlet jets and with different swirl directions are another method for augmentation the heat transfer [17-19]. By using a proper swirl direction, vortex strength increased leading to increase the heat transfer coefficient. Four turbulence models of standard k, Realizable k, standard k and SST k were used to validate the experimental data of averaged Nusslet number [19]. The validation results showed that SST k model was good agreement with the experiment. How to cite Electronic Cooling, Papers