I accidentally spent a day using my phone as my wallet Heres

first_img Sprint Best Buy Apple Pay vs. Samsung Pay vs. Google Pay 7:31 Mentioned Above Samsung Galaxy S9 Plus (64GB, Lilac Purple) Tags See it $699 See It Read next: Everything we know about Samsung’s foldable phone for Feb. 20Read also: New phone designs aim to shake up MWC 2019 CNET may get a commission from retail offers. See It 11 Photos See It I was 30 miles from home when it hit me that my purse was at home, and I’d have to spend the day without my credit cards, ID or any cash. The only thing I had — apart from my backpack and puffy purple jacket — was my Samsung-loaned Galaxy S9 Plus review unit as my only source of money and ID. Good thing that months before I had loaded my credit card number into Samsung Pay, Samsung’s mobile wallet for contactless payments. That would have to do.Samsung Pay and I are old friends. More powerful and more forgiving than Google Pay and Apple Pay, it works on almost every terminal that reads a payment card’s magnetic stripe, which means I’d be able to pay for more things in more places than with either mobile payment rival alone. Only one thing worried me. I’ve used Samsung Pay all over the US, Asia and Europe, but I’ve never been forced to use it solo. I’ve always had the benefit of my credit and ATM cards as backup, and my driver’s license for ID. Being forcibly removed from them, without any sort of safety net, would be a real-life test of mobile payment’s power and influence. The best thing about ride-hailing services like Lyft is that you don’t need to carry a card or cash. Lyft We always talk about leaving the wallet at home, but does the infrastructure exist to make that work? Could I really get through a day using Samsung Pay and nothing else? It’s not Samsung’s fault that the answer was no, not quite.The ride, checkMorning travel wasn’t a problem, and that’s probably why I didn’t discover my mistake until I was 30 miles from home. Ordinarily, I’d have realized my purse wasn’t with the rest of my stuff a few minutes after leaving, slapped my forehead and sheepishly gone back to fetch it. Not this time. Share your voicecenter_img Phones Online You can only do these cool things with Samsung Pay in Korea — for now (pictures) Preview • Why the Galaxy S9 Plus is the ‘better’ Samsung phone this year Amazon $349 Samsung Galaxy S9 Plus Review • Galaxy S9 Plus is still worth buying, but wait a month — here’s why Mobile payments Samsung Comments 24 $699 $354 Now playing: Watch this: This time I’d called a Lyft to take me where I needed to go. That requires just my phone, not a travel card like the Bay Area’s Clipper system for the trains, ferries and buses. Already, that’s a sign of the phone standing in for the contents of my purse.Breakfast, checkI obviously needed something to clear the cobwebs clouding my sanity: coffee. I could have tried Samsung Pay with the classic-style swipe reader at the Marriott-owned Starbucks franchise across the street, but the Starbucks app on my phone did the trick simply and quickly. Whew. No purse needed there, either.google-payPortable payment terminals make tableside mobile payments easy. Google Lunch, not so muchFast-casual eateries around the Bay Area have gotten good at outfitting their point-of-sale terminals with mobile payment readers. There’s often an attachment on top of the customer-facing payment terminal, or a white plastic puck from Square that you can hover your phone over. But there was no mobile payment option at my lunch spot, a sit-down affair I had planned with a friend.Restaurants here that value traditional service seem to keep their swipe terminals out of sight from customers. When I asked if this business could accommodate mobile payments, our server shook his head. No, no it could not. I didn’t want to press the matter, offering to go back to the cash register so I could activate Samsung Pay. But I did wish the US followed Europe’s model, where servers bring a handheld payment terminal to your table, a method that nearly always works with Samsung Pay (often to the server’s surprise).Fortunately my friend was there to foot the bill. Well, I suppose this is what peer-to-peer payment services such as Zelle and Venmo are for. The Zelle mobile app lets you send money from one bank account to another.The Zelle mobile app lets you send money from one bank account to another.  Zelle Cash withdrawal: Genius strikes, then fizzlesLeaving lunch on the way to pick up supplies at the Walgreens pharmacy and convenience store, I spied an outpost of my bank. That’s when I remembered that I could use the banking app on the Galaxy S9 to initiate an ATM withdrawal. If I could take out some cash, I wouldn’t feel so unilaterally reliant on my phone, especially if it lost battery power. Feeding the bank card from Samsung Pay to my banking app wasn’t a problem. There was a clear method for that in the Wallet subsection of the app itself, and a bank attendant was there to get me started on the right path. There was just one problem — I had set up Samsung Pay with a credit card, but not my ATM account, so a cash withdrawal through the credit card would come with a hefty penalty if I went that route. Not worth it. That’s when my lunch companion shoved a $20 bill into my hand, just in case. Put it on my tab.Shopping at Walgreens is all winwalgreens-balance-rewards-apple-pay.jpgWalgreens terminals accept payments when you hover the phone near the top. Not all US stores have this feature turned on, even if the terminal is capable. Scott Stein/CNET I’ve used mobile payments at the Walgreens store multiple times, but as I stood in line with my arms full of tissue paper, cards and gift bags, a part of me wondered what would happen if the terminal was offline today. This has actually happened to me before, but I’ve always had the contents of my purse to back me up when a card reader was down or the point-of-sale terminal was simply too old to work with the phone. That’s something I was worried about even though I’ve witnessed Samsung Pay working with readers when Google Pay and Apple Pay wouldn’t.  Mobile payments did work this time, smooth as butter. Now all I had to worry about was how to get home.The commute back, big failThe time was coming to reunite with my purse, but the train still stood in my way. This wasn’t the first time I wished my Clipper transit card worked on my phone, as transit cards do in so many places. And it wasn’t the first time I wondered why you can’t tap the transit card reader to charge the payment card stored on your phone, as you can on the London Underground.Still, I wanted to see if I’d overlooked a way to buy my ticket through NFC, the near field communications system that makes contactless mobile payments work. When I got to the BART station, I checked the contactless pad that lets you tap your Clipper card to add more value, but tapping a phone against it does nothing. Because it’s clear that trying to do that is as futile as trying to buy a bagel with a key card: You’ve got to fully insert your credit card into the hungry mouth of the ticket machine to pay for your fare. What hurts most is that this system is so close to contactless. Grateful for the $20 stuffed into my jeans pocket, I inserted the cash, praying the machine wouldn’t immediately spit it out. These are old rigs, prone to monetary indigestion. I didn’t even realize I was holding my breath until the machine coughed up dollars worth of change in quarters. If I hadn’t been able to buy my ticket with the machine, I’d have had to find another way home, probably at great expense.bart-no-mobile-payment-credit-cardNoooooope. Jessica Dolcourt/CNET Saved? Mobile payments over NFC aren’t a slam dunk yetMy purse and I are reunited now, and after a severe self-scolding, I can think about the state of mobile payments around me: Apps on my phone can shuttle me around by car and keep me fed. Once I add my ATM card to Samsung Pay, I’ll also be able to get to my cash. So long as the phone’s battery is charged and I’m connected to a data or Wi-Fi network, I know I’ll never be truly stuck. (You can use mobile payments offline as long as you have active “tokens,” which contain your encrypted identity verification, but you need a connection to update these periodically. I once got stuck in South Korea for running out of tokens on a phone in airplane mode.) And even in the event of a large purchase, mobile payments already verify your identity, so you don’t need to fish out your ID.But there were problems during my few purse-less hours that could have led to a sadder ending. If my phone had run out of battery or hit a dead data or Wi-Fi zone, I’d have found myself in a tight spot. And with no way to verify my identity on my phone, I wouldn’t be able to get into a bar or buy a bottle of wine for dinner if I chose to leave my wallet at home.The fact that I couldn’t buy a train ticket or a sit-down meal without cash or card, the fact that I worried whether the NFC terminal was on the fritz, all speak to a larger insecurity. My day wasn’t unlike many of the city’s commuters’, but the infrastructure isn’t robust enough for us to rely on mobile payments alone. Maybe tomorrow I’ll wind my purse around the front door knob so I can’t forget it. Because I’m not ready to venture forth without my wallet again. And neither is San Francisco.Originally published Feb. 12 at 5 a.m. PT.Update, 8:11 a.m. PT: Added more detail on payment tokens.Update, Feb. 15 at 3:00am PT.last_img read more

Equal Pay Day Women in tech are still making less than men

first_img Tags Tech Industry 15 Commentscenter_img Tuesday is Equal Pay Day. Getty Images While Equal Pay Day might sound like some kind of holiday, it’s actually a stark reminder that men and women don’t always get paid equal money for equal work.In fact, when looking at part-time and full-time workers in the US, women earned about 85 percent of what men did in 2018, according to data released in March from the Pew Research Center.The annual marker, which falls on Tuesday this year, symbolizes how far into this year women would have to work in order to have earned as much as men did in the previous year. Usually around Equal Pay Day, there’s a new offering of research from various sources shedding light on how and why that is. In the tech industry— which regularly grapples with numbers that show it’s predominantly made up of white men— disparity in pay is shrinking, but slowly. Glassdoor, a site that corrals employment information on companies, looked at more than a half million salary reports and found that at the pace we’re going, it’s going to take 51 years to close the pay gap.  In its March report, called Progress on the Gender Pay Gap: 2019, Glassdoor found the adjusted pay gap in tech is 5.4 percent, above the national average of 4.9 percent. The adjusted pay gap incorporates factors such as experience and education when comparing the earnings of men and women. While it’s improving, the gap has closed just 0.5 percentage point since 2016.”It’s not a surprise that there’s still a fairly large gap when you consider the fact that most of the highest paying jobs are still predominantly male,” said Daniel Zhao, a senior economist who worked on the report.Tech recruiting platform Hired also put out a report last week called The State of Wage Inequality in the Workplace, and found that when men are offered the same job role women, they’re offered higher salaries 60 percent of the time. The report also found that in the tech industry, white and Asian women made 97 cents for every dollar white and Asian men made. The amount dropped for black (89 cents) and and Hispanic women (91 cents).Meanwhile, not all tech workers are convinced there’s a problem. The reported stated that “64% of female survey respondents believe a racial wage gap exists due to racial identity, while 54% of men believe it exists.”Over the years, some companies have set goals to close their pay gaps. Tech companies like Salesforce, Intel and PayPal have all said they’ve closed their pay gaps. “There’s a cultural phenomenon where women are paid less,” Salesforce CEO Marc Benioff told 60 Minutes in April 2018, when recounting how the company conducted an audit to correct its pay imbalance. (Editor’s note: 60 Minutes is owned by CNET’s parent company, CBS.)One reason progress in tech might be slow, Zhao said, is because there are so few women in the field to start with. He said that industries making quicker progress, like the nonprofit world, tend to be already more gender-balanced.It isn’t just money that women are missing out on. “People spend a third of their lives at their jobs,” Zhao said, “a lot of their overall happiness and satisfaction with life is tied up into how they feel about their job… reducing the amount of discrimination and stress is really important.”  Share your voicelast_img read more

Police confident Gulshanlike attack no longer possible

first_imgOn the evening of 1 July in 2016, five militants entered the Holy Artisan Cafe and Bakery with crude bombs, machetes, pistols, and took dozens of people, including 18 foreigners, hostage.Twenty hostages, including 17 foreigners, were killed as the militants sprayed them with bullets indiscriminately or cut their throats to confirm their death inside the cafe.Besides, two senior police officers – Banani Police Station then officer-in-charge Salauddin Ahmed Khan and Detective Branch assistant commissioner Robiul Islam – were shot dead when police tried to overpower them.Thirteen people, including three foreigners, were rescued while 20 bodies of the hostages were recovered from the restaurant after a successful operation led by the 1st Para-commando Battalion, an elite force in the Bangladesh Army, codenamed ‘Thunderbolt’ the following day (2 July). Five militants and one restaurant staff were killed and one suspected militant was arrested during the drive.A case was filed with Gulshan police station in connection with the terror attack. Later the case was shifted to Detective Branch of DMP. Now, Inspector Humayun Ahmed of Counter Terrorism and Transnational Crime Unit (CTTC) has been investigating the case as its investigation officer (IO). The militants have no strength to carry out attacks like the one on Holy Artisan Bakery due to their weakening through anti-militant drives across the country, reports UNB.Monirul Islam, the chief of Counter Terrorism and Transnational Crime (CTTC) unit, claimed this.”They may try to get reorganised again but we’ll hunt down the absconding militants, too,” he was quoted to have said during an interview with the news agency recently.Though the militants had been planning to do something again in March or during Ramadan but their efforts went in vein due to simultaneous anti-militant drives carried out since March this year, he said.”The terrorist attack on Twin Tower was the deadliest one for the USA. We can term Holey Artisan attack like ‘Twin Tower attack’ in our country,” said Monirul.The CTTC chief said the investigators have already identified the perpetrators involved in the attack. “The militants who went to the spot or directly involved in the attack, were killed on the spot,” he said.He said the militants who were directly involved in planning as well as to coordinate the attack have already been identified.”So far, eight militants who were involved in planning and coordination in the attack have already been killed in different places across the country during anti-militant operations in the last one year,” Monirul said.About financing in the Gulshan Bakery attack, Monirul said, “It seems that attack on the Holey Artisan Cafe; was a low-cost terrorism attack. It might cost Tk 8-9 lakh. They (militants) collected the money from their own sources. There was no need to collect money from foreign sources.”Replying to a question, the CTTC chief said firearms and explosives which were used in the Gulshan Cafe; attack were brought from Chapainababganj and Jessore.”We’ve already arrested Mizanur Rahman alias Boro Mijan from Chapainababganj. He was shown arrested in the Gulshan Cafe; attack case and he confessed to his involvement in supplying firearms and explosives for the attack.”He said investigators have already identified five suspected militants-Mizanur Rahman alias Chhoto Mizan, Sagar, Sohel Mahfuz, Rashed alias Rash and Basharuzzaman alias Chocolate-who were involved in the deadliest attack.last_img read more

Russia against foreign intervention in Myanmar

first_imgRussian Foreign Ministry spokeswoman Maria Zakharova. AFP File PhotoAttempts at intervening in Myanmar’s internal affairs may have only one net effect – still deeper interreligious discord, Russian foreign ministry spokeswoman Maria Zakharova said on Friday, reports Russian news agency Tass.“It is essential to remember that the wish to intervene in the internal affairs of a sovereign state may merely bring about further inter-religious discord,” she said.Moscow supports “efforts for promoting the inter-religious dialogue in Myanmar among the spiritual leaders of all confessions.”“In that connection we took note of the collective statement by the leading organizations representing Myanmar’s multi-ethnic Muslim community who condemned armed actions by radical elements in that region (Rakhine),” Zakharova said. “We express support for the government and urge the coreligionists to avoid yielding to provocations by extremist forces.”Zakharova said Moscow welcomed the government of Myanmar in its efforts “to implement recommendations made by the commission under former UN Secretary-General Kofi Annan.”“In part, a special committee has been created for this purpose under the minister of social welfare, relief and resettlement, which incorporates officials of the law enforcement and economic agencies,” Zakharova said.Also, she pointed out that Myanmar authorities were “providing assistance to the internally displaced persons in returning to their homes.”“According to the available data about two thousand people have returned to their homes,” Zakharova said. “We expect that similar measures will be taken in relation to other persons affected by the migration crisis.”On the situation in the countryZakharova said Myanmar’s military transport aircraft were delivering foods, medicines and other relief aid to that area (Rakhine).“Mobile medical centers have been set up to provide assistance to the local population. Ruined infrastructure facilities are being repaired. A tour of the northern part of that area has been arranged for correspondents of local and foreign mass media,” Zakharova said. “We hope that journalists’ humanitarian access to the violence-stricken areas will become standard practice,” she said.Tensions in the state of Rakhine flared up on 25 August, when hundreds of militants of the Arakan Rohingya Salvation Army raided 30 police posts, the Tass report added.Clashes claimed 400 lives and another 391,000 Rohingya migrants had to flee from Myanmar to Bangladesh.The Rohingya people professing Islam reside in Myanmar’s State of Rakhine. The authorities regard them as illegal migrants from Bangladesh.Rakhine has repeatedly been a scene of religious conflicts between Muslims and local Buddhists. Violence there has left thousands dead over the past few years. According to the United Nations, The Rohingya people are one of the “most friendless” ethnic minorities in the world. Myanmar’s authorities refuse to recognize their citizenship although many generations of the Rohingya people have been resident in the country.last_img read more

US threatens to arrest ICC judges who probe war crimes

first_imgUS National Security Advisor, John Bolton, speaks to the Federalist Society in Washington DC on 10 September. Photo: AFPThe United States threatened Monday to arrest and sanction judges and other officials of the International Criminal Court if it moves to charge any American who served in Afghanistan with war crimes.White House national security advisor John Bolton called the Hague-based rights body “unaccountable” and “outright dangerous” to the United States, Israel and other allies, and said any probe of US service members would be “an utterly unfounded, unjustifiable investigation.”“If the court comes after us, Israel or other US allies, we will not sit quietly,” Bolton said.He said the US was prepared to slap financial sanctions and criminal charges on officials of the court if they proceed against any Americans.“We will ban its judges and prosecutors from entering the United States. We will sanction their funds in the US financial system, and we will prosecute them in the US criminal system,” Bolton said.“We will do the same for any company or state that assists an ICC investigation of Americans.”Bolton made the comments in a speech in Washington to the Federalist Society, a powerful association of legal conservatives.Investigation into detainee abuseBolton pointed to an ICC prosecutor’s request in November 2017 to open an investigation into alleged war crimes committed by the US military and intelligence officials in Afghanistan, especially over the abuse of detainees.Neither Afghanistan nor any other government party to the ICC’s Rome Statute has requested an investigation, Bolton said.He said the ICC could formally open the investigation “any day now.”He also cited a recent move by Palestinian leaders to have Israeli officials prosecuted at the ICC for human rights violations.“The United States will use any means necessary to protect our citizens and those of our allies from unjust prosecution by this illegitimate court,” Bolton said.“We will not cooperate with the ICC. We will provide no assistance to the ICC. We certainly will not join the ICC. We will let the ICC die on its own.”The ICC defended itself, noting it has the support of 123 member states and that even the United Nations Security Council has found it valuable, asking it in 2005 to investigate genocide in Darfur, Sudan.“The ICC, as a judicial institution, acts strictly within the legal framework of the Rome Statute and is committed to the independent and impartial exercise of its mandate,” it said in a statement.Threat’ to US sovereigntyBolton said the main objection of president Donald Trump’s administration is to the idea that the ICC could have higher authority than the US Constitution and US sovereignty.“In secular terms, we don’t recognize any higher authority than the US Constitution,” he said.“This president will not allow American citizens to be prosecuted by foreign bureaucrats, and he will not allow other nations to dictate our means of self-defence.”He also condemned the court’s record since it formally started up in 2002, and argued that most major nations had not joined.He said it had attained just eight convictions despite spending more than $1.5 billion, and said that had not stemmed atrocities around the world.“In fact, despite ongoing ICC investigations, atrocities continue to occur in the Democratic Republic of the Congo, Sudan, Libya, Syria, and many other nations.” he added.Bolton was strongly criticized by rights groups. Liz Evenson, associate international justice director at Human Rights Watch, said Bolton’s threats “show callous disregard for victims of atrocity crimes.”“The slaughter of civilians in Syria, Myanmar and elsewhere shows the ICC is needed more than ever to act where it can,” Evenson added.She said a move to block the complaints against US soldiers in Afghanistan and against Israel would show the US “more concerned with coddling serial rights abusers… than supporting impartial justice.”last_img read more

US yet to see credible version of Khashoggis killing from Saudis

first_imgPeople attend a symbolic funeral prayer for Saudi journalist Jamal Khashoggi at the courtyard of Fatih mosque in Istanbul, Turkey on 16 November 2018. Reuters File PhotoThe United States does not believe the Saudi version of the October killing of journalist Jamal Khashoggi has “hit that threshold of credibility,” a senior State Department official said on Friday even as Saudi Arabia prosecutes suspects.US Secretary of State Mike Pompeo will emphasise the need for accountability and credibility in the investigation of Khashoggi’s death during a visit next week to the Middle East, including to Riyadh, the official said.”The Secretary has been very consistent in engagements with Saudis … to really push the two points of accountability and credibility, which is that the Saudis should have a credible narrative for what happened,” said the official, who briefed reporters on Pompeo’s trip.”I don’t think from our point of view that the narrative emerging from the Saudis or the legal process has yet hit that threshold of credibility and accountability,” the official said.Pompeo wants both the perpetrators and the planners of the killing to be identified by the Saudis and appropriate punishments are meted out, the official added.Khashoggi, a US-based Washington Post journalist from Saudi Arabia who had become a critic of the kingdom’s Crown Prince Mohammed bin Salman, was last seen entering the Saudi consulate in Istanbul on 2 October.US intelligence agencies believe the crown prince ordered an operation to kill Khashoggi, whose body was dismembered and removed from the building to a location still publicly unknown. Top Turkish officials have also tied his death to the highest levels of Saudi leadership.Saudi officials have denied accusations that the prince ordered the murder.President Donald Trump, who has cultivated a close relationship with the crown prince, told Reuters last month he stood by the crown prince despite the CIA assessment and pleas from US senators for Trump to condemn the kingdom’s de facto ruler.A Saudi court on Thursday held its first hearing on Khashoggi’s case in which Saudi Arabian prosecutors are seeking the death penalty for five of the 11 suspects in the case. The United Nations human rights office on Friday called the trial “not sufficient.”The State Department official said the United States was not “looking to get into the weeds” of the court case but would emphasize the need for a credible legal process.Pompeo will also visit Jordan, Egypt, Bahrain, United Arab Emirates, Qatar, Oman and Kuwait as part of his 8 January to 15 January trip, the State Department said in a statement.As part of his talks with Middle Eastern leaders, Pompeo will also discuss the war in Yemen as well as Iran, Syria and other regional issues, the department said.last_img read more

Military Families Are Facing Financial Hardships In Houston And Across The Nation

first_imgListen To embed this piece of audio in your site, please use this code: Share 00:00 /03:31 X Florian MartinReda Hicks is an attorney and advisory board member at the Military Family Advisory Network.The 2017 Military Family Support Programming Survey by the Military Family Advisory Network finds that most American military families, 92.5 percent, are in debt.Sixty percent said they don’t have enough savings to cover three months of living expenses; 15 percent said they have experienced food insecurity.Reda Hicks, a Houston area attorney and advisory board member of the Military Family Advisory Network, says a lot of it has to do with having to move frequently.Click on the play button above to listen to the interview.last_img read more

Wind turbines operate under great turbulence with consequences for grid stability

first_img PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen Play A movie of the trajectory of power output vs. wind speed signals for a wind turbine reveals very turbulent fluctuations. Credit: Patrick Milan, et al. ©2013 American Physical Society “Looking at an operating wind turbine, one may get the impression that the turbine turns smoothly, but looking at the power output, which is the consequence of the forces and torques inside the machinery, we see that the fluctuations are very turbulent,” Peinke told Phys.org. “Changes of MW (more than one thousand horsepower) in seconds become obvious. Thus one may compare a wind turbine with an airplane in the landing phase during a very windy situation. From outside, the airplane may look it’s going quite smoothly, but inside there is another impression caused by turbulent dynamics. One should also note that a wind turbine has to operate permanently in this ‘turbulent landing’ condition.” Citation: Wind turbines operate under great turbulence, with consequences for grid stability (2013, April 19) retrieved 18 August 2019 from https://phys.org/news/2013-04-turbines-great-turbulence-consequences-grid.html Journal information: Physical Review Letters Copyright 2013 Phys.org All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of Phys.org. The model also reveals that moderately intermittent wind power is converted to highly intermittent power output. In other words, wind turbines do not only transfer wind intermittency to the grid, but they also amplify it. For instance, the researchers observed that changes in wind speed of about 11 m/s within 8 seconds may cause nearby wind turbines to change their power output by about 80%. The researchers attribute this amplification to the nonlinear conversion process and fast reaction time of the output to changes in wind speed.”The features of small-scale turbulence are mapped by the wind turbines directly into the electric grid,” Peinke said. “As turbulence and in particular the statistics of small-scale wind fluctuations are still considered to be an unresolved problem, this lack of knowledge may become important in the power grids, especially if such power grid are dominated by wind power. As these phenomena take place in the range of seconds, the dynamics of the power grid in these time scales have to be investigated in detail. One has clearly to state that the first step to solve a problem is to be aware of it and to understand it.”The data also shows that wind power intermittency does not only affect the output of individual turbines, as previous research has shown, but it also extends to entire wind farms, which has not been observed before. The researchers explain that wind farm intermittency is somewhat counterintuitive, since it might be expected that summing the output of wind turbines will average out their turbulent fluctuations. However, wind farm intermittency may be explained by long-range correlations observed in winds. While the wind farm the scientists observed covered an area of about 4 km2, wind correlations have previously been observed to extend to lengths of hundreds of kilometers. Based on these observations, the researchers expect that wind farm intermittency effects may persist up to these large scales.Overall, the physicists conclude that their results stress the importance of accounting for the intermittent and multifractal nature of wind power when designing components for wind power, including energy storage technologies. They note that the situation is similar to the findings from many years ago of the intermittent and multifractal nature of the stock market. In both areas, frequent occurrences of fluctuations must be understood and accounted for in order to maintain stability and avoid widespread disruption.In the future, the researchers plan to further investigate the consequence of wind turbulence on grid stability and develop methods to minimize the negative effects. New turbulence models may help lead to new concepts that reduce the power and load fluctuations on the grid.”For all of these topics, a deep and comprehensive understanding of the complexity of turbulence is indispensable,” Peinke said. Explore further Using fluctuating wind power (Phys.org) —While previous research has shown that wind turbulence causes the power output of wind turbines to be intermittent, a new study has found that wind turbulence may have an even greater impact on power output than previously thought. The researchers modeled the conversion of wind speed to power output using data from a rural wind farm. The results showed that the intermittent properties of wind persist on the scale of an entire wind farm, and that wind turbines do not only transfer wind intermittency to the grid, but also increase it. The findings highlight the importance of fully understanding the physics of wind turbulence in order to ensure future grid stability. The researchers, Patrick Milan, Matthias Wachter, and Joachim Peinke, at the ForWind—Center for Wind Energy Research at the University of Oldenburg in Germany, have published their study “Turbulent Character of Wind Energy” in a recent issue of Physical Review Letters.In their paper, the researchers address the challenges that large-scale wind energy production may bring to future power grids. They explain that today’s grids are powered mainly by a few large generators with controllable input (mostly gas, coal, hydraulic, and nuclear power plants). Power generation from these sources can be modified automatically in order to balance power generation and consumption, and thus ensure grid stability. But while today’s power sources are largely controllable, wind power is uncontrollable and highly intermittent. For time scales larger than several minutes, the conversion of wind speed into electrical power can be modeled by a standard average power curve. But at smaller time scales, the researchers found that the conversion process diverges from this curve. Instead, short-scale conversion follows a more complex pattern involving multifractal scaling that is reminiscent of a 1962 theory of turbulence developed by mathematician Andrey Kolmogorov. Screenshot of a movie (see below) showing the power output vs. wind speed signals for a wind turbine. Credit: Patrick Milan, et al. ©2013 American Physical Society More information: Patrick Milan, et al. “Turbulent Character of Wind Energy.” PRL 110, 138701 (2013). DOI: 10.1103/PhysRevLett.110.138701 This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Bengal in sight as part of our move to boost bilateral ties

first_imgKolkata: Vietnam is looking at Bengal as a major gateway in its stride for developing trade relations with the Eastern states of the country, Ambassador, Embassy of Vietnam in India, Ton Sinh Thanh said on Wednesday.”Vietnam has received investment of 320 billion US dollars from across the world for 25,000 projects. But investment from India has been only 1 billion US dollars for 130 projects. This is a small amount and we want things to move. We want to attract more tourists to Vietnam from India as well as Bengal,” Thanh said at an interactive session on “Bila-teral Trade between India and Vietnam: Prospects and Way Ahead” at MCCI. Also Read – Heavy rain hits traffic, flightsSadhan Pande , state minister for Consumer Affairs, Self Help Group and Self Employment, who was the special guest at the event, urged the Ambassador to consider making Bengal a hub for the country. “Bengal is at the crossroad of South East Asia and you can move to any Eastern state from here. So, you may consider making Bengal a hub as part of your efforts to develop relationship between the two countries,” Pande said.He added that Vietnam needs to play a more positive role in attracting tourists from the country. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed”People from the country as well as Bengal travel a lot to Bangkok and Bali. Vietnam should also come in the picture of wooing tourists from here,” he added.According to the Ambassador, only 1,10,000 Indians visited Vietnam, while a little over 1 million Indians went to Thailand. Pointing out connectivity as a constraint, he said, “We are working on improving connectivity between the two countries. A direct flight from Delhi to Vietnam is going to commence in September 2018. Bengal is also very much on our radar. The Indian government is promoting a Look East policy and developing closer business ties with South East Asia and Bengal is the gateway to the Eastern states,” Thanh said.last_img read more

Tesla Nabs Apple Hardware Exec to Lead Vehicle Development

first_img Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals October 25, 2013 Opinions expressed by Entrepreneur contributors are their own. 1 min read Just a week after eBay lured Apple e-commerce executive RJ Pittman to join its ranks, Apple has lost another member of its executive team.Tesla Motors announced Thursday that it has hired Doug Field, who led Mac hardware development at Apple, to lead the company’s development of new vehicles.In his five years at Apple, Field led development of many new products including the latest MacBook Air, MacBook Pro and iMac. He launched his career as an engineer at Ford and was also chief technology officer at Segway.Field said his background in the automotive industry and his “dream of creating the best cars in the world” led him away from the consumer-electronics giant. “Until Tesla came along, I had never seriously considered leaving Apple,” he said in a statement.The electric car company is at the forefront of technology. Tesla’s latest car, the Model S, received the highest safety rating of any car ever tested by the National Highway Traffic Safety Administration (NHTSA).Related: Elon Musk’s Tesla Continues Awards Tear for Model S Electric Car Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. Register Now »last_img read more

M7 Groupowned Czech and Slovak pay TV operator Sk

first_imgM7 Group-owned Czech and Slovak pay TV operator Skylink has added HBO’s TV Everywhere service HBO Go to its offerings.Skylink’s HBO Standard, HBO MaxPack and Komplet customers will be able to use the HBO Go service free-of-charge until the end of March next year.HBO Go will offer about 1,500 hours of programming to Skylink customers, available to view on smartphones, tablets and some smart TVs.last_img

European channel group SPI International has acqui

first_imgEuropean channel group SPI International has acquired programming from NBCUniversal, while preparing for the launch of its first 4K network.The NBCU deal gives it close to 100 first-run film titles in the Czech Republic and Slovakia including Fast and Furious 6, Despicable Me 2 and 47 Ronin and run on the FilmBox Premium channel.Meanwhile, the Ulta HD channel will be called 4K FunBox UHD. Acquisitions for the channel are being sought an finalised here in Cannes at MIPTV, and SPI has already secured more than 200 hours of content for it.“Our new Ultra HD library will initially offer very diverse content such as visually stunning nature documentaries, breath taking videos of San Francisco skyline and eye-popping CG animations,” said Berk Uziyel, executive director of FilmBox International, an SPI subsidiary.last_img read more