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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EU demands Apple pay Ireland up to 13 billion euros in tax

August 30, 2016 by · Leave a Comment 

By Foo Yun Chee BRUSSELS (Reuters) – EU antitrust regulators ordered Apple on Tuesday to pay up to 13 billion euros ($14.5 billion) in taxes plus interest to the Irish government after ruling that a special scheme to route profits through Ireland was illegal state aid. The massive sum, 40 times bigger than the previous known demand by the European Commission to a company in such a case, could be reduced, the EU executive said in a statement, if other countries sought more tax themselves from the U.S. tech giant. Apple, which with Ireland said it will appeal the decision, paid tax rates on European profits on sales of its iPhone and other devices and services of between just 0.005 percent in 2014 and 1 percent in 2003, the Commission said.

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EU demands Apple pay Ireland up to 13 billion euros in tax

Uber, Careem suspend services in UAE capital

August 28, 2016 by · Leave a Comment 

Ride-hailing companies Uber [UBER.UL] and Careem have suspended services in Abu Dhabi, the capital of the United Arab Emirates, since Saturday and do not know when they can resume operations, they said on Sunday. The National, a UAE newspaper, quoted unnamed sources as saying that as many as 50 drivers for Uber and Careem had been arrested. An Abu Dhabi source familiar with the situation told Reuters some drivers had been detained over violations of regulations, but did not specify how many drivers or describe the violations.

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Uber, Careem suspend services in UAE capital

Facebook changes ‘Trending’ feature to rely less on human editors

August 26, 2016 by · Leave a Comment 

By Yasmeen Abutaleb SAN FRANCISCO (Reuters) – Facebook Inc changed its popular “Trending” feature, which shows users the most-talked about topics of the day, to make it more automated and further eliminate the potential for human bias, the company wrote in a blog post on Friday. The update is Facebook's latest attempt in recent months to stress its neutrality as its influence grows. Facebook said an internal probe found no evidence of bias.

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Facebook changes ‘Trending’ feature to rely less on human editors

Apple fixes serious security flaw after UAE dissident’s iPhone targeted

August 25, 2016 by · Leave a Comment 

Apple Inc issued a patch on Thursday to fix a dangerous security hole in iPhones and iPads after researchers discovered that a prominent United Arab Emirates dissident's phone had been targeted with a previously unknown method of hacking. The attack on the dissident, Ahmed Mansoor, used a text message that invited him to click on a web link. Instead of clicking, he forwarded the message to researchers at the University of Toronto's Citizen Lab.

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Apple fixes serious security flaw after UAE dissident’s iPhone targeted

New York Times says suspected Russian hackers targeted Moscow bureau

August 24, 2016 by · Leave a Comment 

The New York Times said on Tuesday its Moscow bureau was targeted by a cyber attack this month but that there was no evidence the hackers, believed to be Russian, were successful. “We are constantly monitoring our systems with the latest available intelligence and tools,” Times spokeswoman Eileen Murphy told the newspaper. “We have seen no evidence that any of our internal systems, including our systems in the Moscow bureau, have been breached or compromised.” Earlier on Tuesday, CNN, citing unnamed U.S. officials, reported that the Federal Bureau of Investigation and other U.S. security agencies were investigating cyber breaches targeting reporters at the Times and other U.S. news organizations that were thought to have been carried out by hackers working for Russian intelligence.

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New York Times says suspected Russian hackers targeted Moscow bureau

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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Samsung plans refurbished smartphone program: source

August 22, 2016 by · Leave a Comment 

By Se Young Lee and Miyoung Kim SEOUL/SINGAPORE (Reuters) – Samsung Electronics Co Ltd plans to launch a program to sell refurbished used versions of its premium smartphones as early as next year, a person with direct knowledge of the matter told Reuters. As growth in the global smartphone market hits a plateau, Samsung wants to maximize its cost efficiency and keep operating margins above 10 percent. Samsung would then re-sell these phones at a lower price, the person said, declining to be identified as the plan was not yet public.

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Samsung plans refurbished smartphone program: source

Incoming Viacom CEO plans investor campaign as shakeup looms

August 19, 2016 by · Leave a Comment 

By Jessica Toonkel NEW YORK (Reuters) – As Viacom Inc prepares for the impending departure of CEO Philippe Dauman, his interim replacement, Thomas Dooley, is planning to reach out to investors, setting a new tone for a company that has kept communications minimal. Dooley plans to set up meetings between shareholders and heads of Viacom networks, which include Comedy Central, MTV and Nickelodeon, two people familiar with the situation said on Friday. Viacom has been embroiled in a legal battle between Dauman and some members of its board on one side and controlling shareholder Sumner Redstone and his daughter, Shari Redstone, on the other, over control of Redstone's $40 billion media empire, which includes Viacom and CBS Corp .

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Incoming Viacom CEO plans investor campaign as shakeup looms

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

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