Sci-Tech Expert – Science & Technology News, Reviews and Articles

How to Enhance the Sputtering Process

August 31, 2016 by · Leave a Comment 

beam-splitterSputtering can be enhanced in a variety of ways.

With so many different deposition methods available today, the market has become somewhat saturated. Furthermore, because of the rapid advancement in technology, there are new ways to optimize material deposition, therefore expanding the industry in even more ways. Now, one of the most common deposition processes comes from what is known as sputtering. A sputter deposition system is efficient, quick, and is know for its high quality output. Here is a breakdown on how one can enhance the production of this process.

Process Breakdown

There are numerous ways that you can enhance the process of sputtering. One of the most common ways to do this is to use what is known as a magnetron sputtering system or an ion beam sputter deposition. The main difference between this and a basic sputtering system is that a magnetic field is being utilized near the target area. This field causes the electrons to travel and spiral along flu lines near the target rather than it being attracted towards the substrate. One of the advantages of this is that the plasma is “stuck” to an area near the target, without causing any damage to the thin film that is being formed. Remember, electrons will travel for a longer distance which increases the possibility of further ionizing Argon atoms. This tends to create a stable plasma with a high density of ions. More ions means that there is going to be more ejected atoms from the target, which in turn will increase the efficiency of the entire sputtering process.


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A Brief Rundown on Aircraft Ground Power

August 22, 2016 by · Leave a Comment 

plane-plugged-inGround power units are vital in supplying parked airplanes enough power to maintain electrical function.

If you’ve ever wondered what type of power an aircraft uses when it’s docked at the airport stand, then this article will help provide you with the necessary information to better understand how these planes receive the electrical current needed to function. Now, normally, the aircraft will generate power on its own. But, when the aircraft is parked with the engine switched off, the power provided by the airport will be needed in order to maintain electrical functions. The connected power ranges but is usually 115 volts at 400Hz and is called ground power.

Multiple Units

A fixed ground power unit is the supplier of 400 Hz power that utilizes a permanently installed fixture for use on a parked aircraft. The number of ground power units depend on the aircraft size. The larger the plane, the more units will be needed due to the high demand of electrical current.

The Conversion Process

The conversion process of the mains power to 400 Hz power is usually done in a centralized location or by frequency converters. Note that smaller airfields use a portable power pack rather than a fixed unit due to the lack of a centralized system. Now, when a centralized system supplies power, it’s usually a large quantity. The power is converted at a central location and then 400 Hz is then distributed to the aircraft. This process is crucial to the healthy functionalities of a power supply system. In point of use, the main power is taken close to the aircraft, and the conversion process is carried at the point of use.


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AT&T, Apple, Google to work on ‘robocall’ crackdown

August 19, 2016 by · Leave a Comment 

By David Shepardson WASHINGTON (Reuters) – More than 30 major technology companies are joining the U.S. government to crack down on automated, prerecorded telephone calls that regulators have labeled a “scourge.” AT&T Inc , Google parent Alphabet Inc , Apple Inc , Verizon Communications Inc and Comcast Corp are among the members of the “Robocall Strike Force,” which will work with the U.S. Federal Communications Commission. The group was holding its first meeting with the FCC on Friday. The strike force will report to the commission by Oct. 19 on “concrete plans to accelerate the development and adoption of new tools and solutions,” said AT&T Chief Executive Officer Randall Stephenson, who is chairing the group

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AT&T, Apple, Google to work on ‘robocall’ crackdown

Cisco to cut 5,500 jobs in shift from switches to software

August 17, 2016 by · Leave a Comment 

By Alexandria Sage and Arathy S Nair SAN FRANCISCO (Reuters) – Cisco Systems Inc said it would cut nearly 7 percent of its workforce, posting charges of up to $400 million in its first quarter, as the world's largest networking gear maker shifts focus from its legacy hardware towards higher-margin software. The gradual move to fast-growing sectors such as security, the Internet of Things and the cloud is a response to sluggish demand for Cisco's traditional lineup of switches and routers from telecom carriers and enterprise customers, amid intense competition from companies such as Huawei and Juniper Networks Inc. Savings from up to 5,500 job cuts would be reinvested into key growth areas, Cisco said. “We think this is partly an effort by (CEO) Chuck Robbins to put a stake in the ground and send a message that this is going to be a leaner, meaner Cisco that is focused on driving software and recurring revenue business,” said Guggenheim Securities analyst Ryan Hutchinson.

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Cisco to cut 5,500 jobs in shift from switches to software

Apple to increase investment in increasingly tough China

August 16, 2016 by · Leave a Comment 

By Paul Carsten BEIJING (Reuters) – Apple Inc will boost its investment in China, one of its most important but increasingly difficult markets, and build its first Asia-Pacific research and development center in the country, Chief Executive Tim Cook said on Tuesday. Demand for Apple's phones has plummeted in China, and the government maintains a wary attitude towards foreign technology. Apple's new research and development center will be built by the end of the year, Cook told Vice Premier Zhang Gaoli, one of China's most senior officials, according to the official Chinese state broadcaster.

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Apple to increase investment in increasingly tough China

Megaupload’s Dotcom to seek a review of U.S. court’s forfeiture ruling

August 14, 2016 by · Leave a Comment 

By Harry Pearl and Charlotte Greenfield SYDNEY (Reuters) – German tech entrepreneur and alleged internet pirate Kim Dotcom will seek a review of a Federal Court decision which rejected his bid to keep hold of millions of dollars in assets held in Hong Kong and New Zealand, his lawyer said. A three-judge panel of the 4th Circuit U.S. Court of Appeals ruled two to one on Friday that Dotcom could not recover his assets because by remaining outside the U.S., he was a fugitive, which disentitled him from using the resources to fight his case. Dotcom’s lawyer Ira P. Rothken said his client would seek a review of the decision in front of the full bench and, if necessary, petition the Supreme Court.

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Megaupload’s Dotcom to seek a review of U.S. court’s forfeiture ruling

More airline outages seen as carriers grapple with aging technology

August 12, 2016 by · Leave a Comment 

Airlines will likely suffer more disruptions like the one that grounded about 2,000 Delta flights this week because major carriers have not invested enough to overhaul reservations systems based on technology dating to the 1960s, airline industry and technology experts told Reuters. Airlines have spent heavily to introduce new features such as automated check-in kiosks, real-time luggage tracking and slick mobile apps. Scott Nason, former chief information officer at American Airlines Group Inc , said long-term investments in computer technology were a tough sell when he worked there.

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More airline outages seen as carriers grapple with aging technology

Keyless systems of many VW Group cars can be hacked: researchers

August 11, 2016 by · Leave a Comment 

By Eric Auchard FRANKFURT (Reuters) – Tens of millions of vehicles sold by Volkswagen AG over the past 20 years, and some current models, are vulnerable to theft because keyless entry systems can be hacked using cheap technical devices, according to European researchers. Computer security experts at the University of Birmingham have published a paper outlining how they were able to clone VW remote keyless entry controls by eavesdropping nearby when drivers press their key fobs to open or lock up their cars. Vehicles vulnerable to this attack include most Audi, VW, Seat and Skoda models sold since 1995 and many of the approximately 100 million VW Group vehicles on the road since then, the researchers said.

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Keyless systems of many VW Group cars can be hacked: researchers

Electric car charging station companies issue warning over VW settlement

August 10, 2016 by · Leave a Comment 

By Rory Carroll SAN FRANCISCO (Reuters) – Electric vehicle charging companies are calling for independent oversight of the $2 billion Volkswagen AG is required to invest in clean car infrastructure, saying VW should not have the power to shape the nascent electric car charging space. The German automaker agreed to invest the money, which includes $1.2 billion nationally and $800 million in California, as part of its penalties for equipping hundreds of thousands of its diesel vehicles sold in the United States with software designed to cheat tailpipe emissions tests. While charging station companies called the money a potential “game changer,” they worry that if it is misspent, it could hurt competition.

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Electric car charging station companies issue warning over VW settlement

U.S. to auction $1.6 million of bitcoin from various cases

August 8, 2016 by · Leave a Comment 

By Nate Raymond NEW YORK (Reuters) – The U.S. government said on Monday it plans to auction over 2,700 bitcoins that were forfeited during several cases, several of which stemmed from investigations of the online black market known as Silk Road. The U.S. Marshals Service said that the online auction would be held on Aug. 22, and that potential bidders must register by Aug. 18.

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U.S. to auction $1.6 million of bitcoin from various cases

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