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Vehicle makers rev up tech advances

Written By Unknown on Senin, 16 Februari 2015 | 22.26

Vehicle manufacturers are embracing new technology, but things have moved so fast in the past few years, some buyers have no idea what is available.

"Car shoppers are spending more time considering and evaluating the consumer electronics and technology they want in their cars and ultimately are spending more money on the technologies they really want," said Michelle Krebs of AutoTrader. "But it's like Rip Van Winkle waking up. So much new tech has been developed since a lot of buyers have shopped for a new vehicle.

"Consumers want protection, and tech helps prevent accidents and make life more convenient."

Not all tech advances are safety-related. Navigation systems have a safety benefit, but they're also a convenience feature that delight owners — as are charging ports, Bluetooth capability, remote start and keyless entry.

Robert O'Koniewski, executive vice president of the Massachusetts State Automobile Dealers Association, said carmakers are casting "a wide net" in exploring new tech.

"Manufacturers are all trying to come up with next big thing,' said O'Koniewski. "They're looking to find an edge to offer something useful to attract customers. For example, in the truck market, Dodge has been developing self-contained Wi-Fi for the Ram because contractors are looking for that capability. Ford and Chevy are doing the same thing."

Ron Montoya, consumer advice editor for Edmunds.com, listed five relatively new car technologies that buyers might want to look into:

BMW i3 carbon fiber-reinforced plastic chassis

"BMW's i3 electric vehicle has a carbon-fiber-reinforced plastic body shell and chassis that is extremely strong and lightweight," Montoya said. "There's a chance we could see more cars made of these materials if the costs come down. The fuel economy and performance benefits would be huge."

Tesla's autopilot system

"We haven't had a chance to test this, but if it works as advertised, it would be the earliest implementations of automated driving in a vehicle," said Montoya. "Tesla says the system is smart enough to read stop lights and drive in stop-and-go traffic."

Rear back-up cameras

"These aren't new," said Montoya, "but the fact that they are appearing on more cars is. In fact, they will become standard on all vehicles by 2018. These cameras are becoming a 'must have' feature as rear visibility on some newer cars can be an issue."

Front crash prevention

"This technology includes forward collision warning and autonomous braking systems. These systems will alert the inattentive driver that he is getting too close to the car in front of him and in some cases will hit the brakes for them. It's like having an extra set of eyes on the road," said Montoya.

Heads-up display

Heads-up displays give basic information (navigation directions, speed) and are widely available. "They have tremendous potential to change the way we get information in a car," Montoya said. "They were once found only on luxury cars, but now you can get it on the inexpensive Mazda 3."

The bottom line on vehicle tech remains safety enhancements, the most potentially revolutionary of which is the "smart car/smart highway" concept of self-driving and self-monitoring vehicles that reduce or eliminate human error.

"This technology is potentially game-changing with respect to traffic safety," said John Paul, senior manager of traffic safety for AAA. "This is all part of the ADAS (advanced driver assistance systems); the stepping stone to self-driving cars."

Check out the e-Edition of our Presidents Day Automotive Special Section.


22.26 | 0 komentar | Read More

Tighter online controls in China point to wider clampdown

BEIJING — Working out of a Beijing office full of video game designers from around the world, Chinese-born Pin Wang and his startup Substantial Games should be the face of the innovative, forward-looking China that the country's leaders say they want to build.

Pin and his team are attracting investors from across China while launching online games full of swords and sorcery that they hope will dazzle global eyeballs. But for several weeks, Pin's team has struggled with a decidedly down-to-earth problem that's hit countless companies nationwide: They're unable to access their email, shared documents and other online services blocked by China's Internet censors.

"Something that should take 15 seconds takes three or five minutes, and it screws with the way you flow or you work," Pin said. "We don't have the resources to move because we're a startup. But we talk about it all the time."

Chinese controls on information have tightened and loosened over the years, but Pin and others are feeling what many say is China's most severe crackdown in decades on how people learn about the world around them, talk to each other and do business.

On the Internet, in college classrooms and in corporate offices, the Chinese Communist Party has raised the virtual wall separating the most populous country from the rest of the globe. Experts say it reflects a distrust of outside influences that the party thinks could threaten its control on society.

Companies that have depended for years on virtual private networks, or VPNs, to get around Chinese online censors and access business tools have seen those channels squeezed or shut down since the start of the year.

Academics who have long helped Chinese authorities distill foreign ideas into public policy have been told to watch what they say, especially about so-called Western ideas that clash with party doctrine. And many foreign companies that were welcomed into China's booming economy have seen their offices raided by investigators and been forced to pay record fines in antitrust investigations.

Despite Chinese government pledges to create an innovation economy that leads the world, China ranked 22nd out of 50 countries, between Ireland and Spain, in a global innovation index released this month by Bloomberg financial news service.

"To have the best educational system and the best university has nothing to do with how many high-rises you have and how many good dining halls you have," said Rowena He, a Harvard University lecturer. "The most important thing at the core is the intellectual freedom that makes up life in a university and academia," she said. "But instead of opening up to reforms, we see the opposite."

Chinese Foreign Ministry spokeswoman Hua Chunying responded to the concerns of foreign businesses by pointing to a U.N. report showing China became the world's top destination for foreign direct investment in 2014.

Hua also echoed previous government arguments that people online needed to first obey Chinese regulations on "healthy" Internet use.

"As long as foreign companies in China observe the Chinese law and refrain from undermining China's national security and consumers' interest, China will protect their legal rights and welcome their business expansion," Hua said.

The tighter controls reflect instability within the party as President Xi Jinping shakes up the political landscape in a much-publicized anti-corruption campaign that's netted thousands of government officials, said prominent China scholar Perry Link. The strategy echoes back to the political purges of Mao Zedong, the founding father of the People's Republic of China, Link said.

"Since Xi Jinping has come in, the clampdown has been stronger and more unidirectional than anything since the Mao era," Link said.

Professor Xia Yeliang was among the first to feel the consequences when the economics faculty of prestigious Peking University voted to expel him in October 2013, a month before Xi took power after a lengthy, stage-managed transition. Xia had long been an advocate for democratic reforms in China and helped draft Charter 08, a bold call for sweeping changes to China's political system.

Xia said more than 20 professors in China have been expelled or otherwise disciplined for their political teachings since Xi came to power. "Through my colleagues, I can sense that the ideological controls are getting much tighter," said Xia, now a visiting fellow at the libertarian U.S. think tank the Cato Institute.

In that political climate, the government sees the Internet as a top threat and has responded by building a ubiquitous system for censoring what people in China can see online. Xi presides over the powerful Central Internet Security and Information Leading Group, which formed three months after he took power.

The list of controls grows every month.

Late last year, Chinese censors finally blocked all Google services after the U.S. company refused to cooperate with them in 2010. This month, officials required that all Chinese blog and chat room users register with their real names and promise in writing to avoid challenging the political system. In the coming weeks, new cybersecurity regulations will reportedly require foreign companies to turn over sensitive intellectual property and submit their products to security checks.

The party has paid especially close attention to the microblog Weibo and censored messages that touch on sensitive subjects, said Rogier Creemers, a research officer at Oxford University's Programme for Comparative Media Law and Policy.

"Weibo has become a venue for chaotic discussion, and part of the effect it had was it essentially meant the party had lost the initiative and couldn't say what got into the public sphere," Creemers said.

The latest moves are in line with Beijing's longtime approach to regulatory change: It eases control on commercial or other activity, sees how it develops and then promotes aspects it wants while suppressing those it doesn't.

Chinese Internet users, for example, still are avid consumers of social media, e-commerce and video streaming sites, even if the censors are always lurking, said Dali Yang, faculty director of the University of Chicago's center in Beijing.

"This is a society with a tremendous level of information, people who are very well educated in terms of actual information and they know of history going back centuries," Yang said.

Still, while Chinese leaders see the Internet as a source of prosperity and jobs, they are willing to give up commercial gains to enforce political controls. When the government clashed with Google, people in the industry warned that driving out the U.S. search giant would hurt China's development.

Walling off China's Internet has allowed some local websites such as search engine Baidu and Weibo to prosper in the absence of foreign competition. Other local companies, such as Pin's startup, chafe at the restrictions.

Foreign entrepreneurs and companies, meanwhile, are trying to figure out whether the costs of doing business in China outweigh the benefits of tapping the world's second-biggest economy.

Rich Chinese also are looking to leave the country. A survey by the British bank Barclays last year found that 47 percent of more than 2,000 high-worth Chinese are hoping to move within five years. The poll found that their top reasons were greater educational and economic opportunities for their children and overall economic security.

"Beijing is an attractive place to be because of the amazing talent," said Beijing-based entrepreneur Nils Pihl, who heads the database startup Traintracks. "But it's getting harder for us to stay, and my social feed is full of other CEOs saying they're worried they will have to leave."

___

AP Business Writer Joe McDonald contributed to this report.


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These aren’t your Grampa’s trucks

Trucks remain popular across the United States because of their durability, utility and affordability — but they've come a long way in engineering and comfort.

Trucks now have a variety of sizes, passenger-carrying capability, engine choices and technological features once the exclusive domain of cars.

Edmunds.com features editor Mike McGrath listed five great values in the truck market for interested consumers:

Chevy Colorado

"In recent years," McGrath said, "trucks have gotten hugely capable and just plain huge. For those of us who don't need to haul the Space Shuttle, the new Colorado has a strong 305-horsepower V6 engine, a tow rating of 7,000 pounds and a bed big enough for a dirt bike or a trip to Home Depot." (MSRP: $20,120, MPG: 20/27)

Toyota Tacoma

The lone non-American on McGrath's list of best trucks is the Toyota Tacoma. "Like the Colorado, the Tacoma is a solid midsize pickup for those who don't need a full-size truck," he said. "Unlike the Colorado, the Tacoma's getting a little long in the tooth and the interior is dated. That said, it's still terribly functional and, with the right TRD options, a ton of fun." (MSRP: $20,965, MPG: 21/25)

Dodge Ram 1500

The third-best-selling truck in the U.S. has always won points with its progressive styling. McGrath says beneath that skin is even more beauty. "Ram is on a roll thanks to the overall superiority of the new 1500," he said. "Not only does it have coil-springs in the back that take ride comfort to a new level, but its new diesel powertrain hauls, tows and cruises with equal efficiency." (MSRP: $25,410, MPG: 20/28)

Ford F-150

The heavyweight sales champion's new model isn't resting on its laurels, McGrath said. "The 2015 has two big tricks up its sleeve. The first is the availability of a small, 2.7-liter turbocharged V6 that makes 325 horsepower and can tow 8,400 pounds. The other trick is the new aluminum-intensive body structure that increases strength and reduces weight." (MSRP: $25,720, MPG: 19/26)

GMC Sierra

The GMC Sierra is the posh twin of the Chevrolet Silverado. The two together sold more than 741,000 units last year, just a bit under the Ford, to finish second and 18th in overall sales. "Sure, it's hugely capable, but it's also luxurious, quiet and remarkably civilized for a pickup," McGrath said. (MSRP: $26,075, MPG: 18/24)

Read the free e-Edition version of our Presidents Day Special Automotive Section


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Greece, creditors still far apart going into new debt talks

BRUSSELS — Greece and its European creditors began fresh talks on Monday over the country's request to ease its bailout terms, but expectations for a quick deal are low despite a fast-approaching deadline.

Optimism was curbed by German Finance Minister Wolfgang Schaeuble, who said he's "very skeptical" that a solution can be found at the meeting in Brussels.

Volatile Greek shares were down 3.6 percent in midday trading, while the eurozone's Euro Stoxx 50 index shed 0.1 percent.

"Greece must see that you can't keep living above your means and then keep making proposals for how others should pay even more," Schaeuble told Deutschlandfunk radio.

Athens wants a substantial easing in the terms of repayment of its 240 billion euros (currently $273 billion) in rescue loans, which it has received from other countries that use the euro and the International Monetary Fund, as well as less budget austerity.

Greek Prime Minister Alexis Tsipras won elections on Jan. 25 on a vow to end the belt-tightening policies that the country has been demanded to make to reduce public debt — but which have also caused the economy to shrink by a quarter and unemployment to soar above 25 percent.

Tsipras wants to scrap the existing bailout deal and replace it with a new one. In the meantime, he wants a short-term "bridge agreement" that can keep Greece solvent after Feb. 28, when the current bailout deals ends.

Greek Finance Minister Yanis Varoufakis and the chairman of the 19-nation eurozone, Jeroen Dijsselbloem, declined to speak to reporters as they arrived at European Union headquarters in Brussels, some four hours ahead of the meeting's scheduled start time.

Germany's Schaeuble said Athens was in no position to make demands.

"I feel sorry for the Greeks," he added. "They've elected a government that's behaving pretty irresponsibly at the moment."

His comments came after technical talks in Brussels on Friday and Saturday, which an EU spokeswoman summarized as "an exchange of views."

European Economic and Financial Affairs Commissioner Pierre Moscovici was more upbeat as he arrived for the meeting, saying he saw "the capacity to conclude positively."

In an Op-Ed in the New York Times Monday, Varoufakis said Greece is not looking to avoid paying its debts.

"We are asking for a few months of financial stability that will allow us to embark upon the task of reforms that the broad Greek population can own and support, so we can bring back growth and end our inability to pay our dues," he wrote.

Time is short. If no deal is reached by Feb. 28, Greece's banks could be cut off from affordable funding from the European Central Bank. A serious deterioration in Greek banks' finances could cause depositors to withdraw money, potentially causing a collapse in the banking system. Ultimately, that could force the government to leave the eurozone — a move informally dubbed Grexit — so that it can print its own money and rescue its banks.

Any agreement with creditors will require approval by national parliaments in eurozone countries, which would add further delays.

Asked if emergency funding for Greek banks could be extended "for months," a top ECB official, Peter Praet, said in an interview with Portuguese newspaper Jornal de Negocios that "when you have a systemic crisis, you may need flexibility in terms of duration."

The bank's governing council next reviews the funding permission Wednesday.

Berenberg Bank analyst Holger Schmieding said time and money are running out for Greece.

"A subtle change in tone in Athens suggests that the new Greek government has started to notice," he said in a note. "But whether (Tsipras) has really grasped how close he has already pushed Greece to the abyss of wholesale financial crisis, recession and Grexit and whether he is ready to perform the inevitable U-turn to avoid that fate remains a very open question."

___

Nicholas Paphitis in Athens, Greece, Geir Moulson in Berlin and David McHugh in Frankfurt, Germany, contributed to this report.


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Gamblers' optimism? Casino money misses states' expectations

HARTFORD, Conn. — For anyone betting on the Northeast's casino bonanza, the odds are long on projects hitting financial expectations.

In the last several states to open casinos — Ohio, Maryland and Pennsylvania — overall revenue is coming in below baseline forecasts, according to a review of state tax data. Officials blame miscalculations of spending habits and competition, but some also question how much the projected numbers reflected wishful thinking.

The casino industry has grown exponentially over the last decade as revenue-hungry states have moved to claim business that once went across state lines to Atlantic City, New Jersey, or the tribal-owned megaresorts in Connecticut. After Nevada, Pennsylvania has emerged as the country's No. 2 gambling marketing, overtaking Atlantic City, where four of 12 casinos closed last year.

As Massachusetts and New York prepare for a new round of casino building, they have added new levels of financial scrutiny, enlisting consulting firms to vet revenue projections. But the industry's growth in the Northeast's tight geography has made modeling more complex, and experts warn there are no guarantees.

"This isn't a science," analyst Alan Woinski said.

Projections are developed through so-called gravity models, premised on the concept that bigger casinos draw more people from farther away. They are used by developers and regulators to estimate how a property will perform based on factors including the affluence of surrounding towns.

The track record shows big margins for error. With access to the same data, developers regularly come back with higher projections than regulators who run the numbers themselves, especially when companies are competing for bids. A recent study by Cummings Associates, a Massachusetts-based consulting firm, found that projections done for the same project were, on average, 20 percent apart and, in cases where the casinos were actually built, almost always were proved too high.

Casinos generally remain big moneymakers, and some projects have far exceeded predictions, but state averages have been below forecasts that set expectations for tax revenue.

One of the biggest misses came in Ohio, where the state Department of Taxation weighed in on a proposed constitutional amendment in October 2009 with an estimate that casinos would generate at least $470 million in annual tax revenue. In 2014, tax revenue from the casinos totaled $267.5 million.

"In retrospect, we were guessing," said Mike Sobul, who was the tax department's director of research.

Sobul said the gravity model run by Ohio officials used industry assumptions that were overly optimistic, and, more significantly, officials underestimated how the recession would affect consumer spending. Sobul, who tracks the numbers now as a financial officer for an Ohio school district, said schools that once were expected to receive more than $80 per pupil statewide in casino money are now expecting about $51 per pupil.

In Maryland, casino revenue has been hundreds of millions of dollars short of a December 2008 projection by the Department of Legislative Services.

Even in Pennsylvania, the casino boom's success story, it took the addition of table games in 2010 to bring revenue beyond levels projected by a state task force that assumed they would offer only slot machines. Doug Harbach, a spokesman for the Pennsylvania Gaming Control Board, said the projections were not badly inflated.

"You have to take into account that the market in surrounding states now has much more competition," he said.

For all the attention to revenue projections, many industry insiders say the real test is whether banks, which conduct their own research, will loan money for a casino.

"If a bank is going to put up a hundred million dollars, that's a tacit show of feasibility," said Michael Ross, president of the Innovation Group in Winter Park, Florida, one of many consulting firms in the forecasting business.

Where some earlier states were often guided by in-house analyses, Massachusetts and New York have brought in more outside experts to conduct their own market research, assess the numbers from the developers and guide state officials who acknowledge their limited experience with the gambling industry.

Even so, estimates made during a bidding process can vary so widely that even rival developers say they are sometimes mystified. The chief executive at Connecticut's Mohegan Sun, which lost out to Wynn Resorts in a competition for a Boston-area casino license, said the Canadian consulting firm working with the Massachusetts Gaming Commission should have challenged their rival's projections for spending by international high rollers.

"I don't think enough questions were asked by the consultants," CEO Mitchell Etess said. "If you're in meetings with the gaming commission, and you get the sense they like Wynn, you're not going to ask a lot of questions."

Massachusetts Gaming Commissioner Enrique Zuniga said Wynn promised lower numbers overall but from a broader area. He said officials are well aware that projections are only estimates, and they look at many other factors, including details of the proposed property, the developers' established clientele and market research.

"We're not taking any numbers to the bank," Zuniga said.

___

Michael Melia can be reached at https://twitter.com/MikeMeliaAP


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Startup makes core change to reactors

Written By Unknown on Minggu, 15 Februari 2015 | 22.26

A three-person startup in the heart of Kendall Square is trying to reinvent the nuclear power plant to make it safer and more efficient with the help of $2.5 million in new venture funding.

"If we can develop a new type of design that directly addresses those problems, then we can develop a type of power that will be more acceptable," said Leslie Dewan, chief executive of Transatomic Power. "We felt that in order to properly address climate change, the world needs more nuclear. There's so many hurdles to broader adoption."

Transatomic is developing a "molten-salt" nuclear power plant, which Dewan says will be meltdown-proof and will be able to extract more power from nuclear fuel. The system is based on gravity, liquid fuel and a fail-safe in case of a complete power failure. Transatomic's power plant can also run on existing nuclear waste.

"Having a power plant that will burn waste and make electricity, that's a no-brainer," said Ray Rothrock, chairman of Transatomic and a venture capitalist who started his career as a nuclear engineer.

The government has said nuclear waste could be stored at Yucca Mountain in Nevada, but the project has stalled as Republicans and Democrats find themselves on opposite sides of the issue.

"The utilities want very much to get this waste off of their sites," Dewan said.

Transatomic uses liquid fuel, which Dewan says makes their design more efficient than existing nuclear plants.

"There are some inherent problems with using solid fuel, and that's primarily because you can only keep that solid fuel in a conventional reactor for three or four years," she said.

The uranium rods wear through their metal containers well before the energy is spent, she said. Liquid fuel can be kept inside the reactor indefinitely. Dewan said 96 percent of the energy in liquid fuel can be extracted, compared to 4 percent for solid fuel.

The $2.5 million in venture funding from Founders Fund, Acadia Woods Partners and Armada Investment, comes on top of $2 million in funding secured last summer.

Transatomic recently began experiments with the help of the Massachusetts Institute of Technology to test components for a prototype power plant. The company hopes to start construction by 2020.

Dewan and her co-founders are part of a new generation of nuclear engineers. Dewan and Rothrock said high profile accidents such as Chernobyl and Three Mile Island drove a generation of potential nuclear engineers to other industries. Now, a new wave of engineers is coming.

"There are, by last count, about 43 nuclear innovation companies in the United States and Canada and about $1 billion of private capital has been applied," Rothrock said. "University nuclear engineering departments are bursting at the seams."


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Homeowner tax breaks appear safe, for now

WASHINGTON — Tax reform is revving up again on Capitol Hill, with the heads of key committees pledging to work toward a simpler and fairer tax code, possibly one with lower tax rates. Sounds intriguing.

But what might that mean for homeowners — many of whom benefit from tax breaks such as mortgage interest and property tax deductions, plus tax-free writeoffs of up to $250,000 or $500,000 of home sale capital gains, depending on whether they file returns as singles or married couples? Renters get none of these.

Homeowner writeoffs become targets for cutbacks or elimination whenever tax code reforms get serious attention because of their costs in uncollected federal revenues. The mortgage interest deduction alone cost the Treasury $113.4 billion in fiscal 2015, property tax writeoffs $27.8 billion, according to estimates by the congressional Joint Committee on Taxation.

President Obama kicked off the tax legislative season with a budget proposal that would limit mortgage interest and other deductions for upper income taxpayers. No surprise there. He called for essentially the same change last year, and this year's version was widely viewed as dead on arrival in a Congress controlled by Republicans.

But what might Republican tax reformers themselves have up their sleeves? Last February, the top Republican tax writer, Rep. Dave Camp of Michigan, the then-chairman of the Ways and Means Committee, came out with a tax code overhaul blueprint that would offer lower tax rates and a big increase in the standard deduction in exchange for drastic cutbacks in special-interest deductions and credits, including the benefits traditionally enjoyed by homeowners.

Camp's plan would have shrunk marginal rates for most taxpayers to just two brackets, 10 percent and 
25 percent; phased down mortgage interest deductions from the current
$1 million limit on eligible mortgage amounts to $500,000; eliminated deductions on home equity loans and credit lines altogether; and stretched out the time period needed to qualify for tax-free capital gains exclusions from the present two years out of the preceding five years to five years out of the preceding eight years. Camp's plan also would have eliminated homeowners' writeoffs of local property tax payments and ended penalty-free withdrawals from IRAs to assist with first-time home purchases.

Camp retired from Congress at the end of the last session. His reform plans — considered too controversial to pass in an election year — never moved out of committee. But the impetus for some sort of wholesale reform of the sprawling Internal Revenue Code remains alive and well. Is anything likely or even possible this year, and if so, could it create problems for current or future owners?

Conversations with tax experts and Capitol Hill legislative analysts suggest a couple of things: There is bipartisan support for the broad concept of streamlining the tax code. The new Ways and Means Committee chairman, Rep. Paul Ryan (R-Wis.) said on NBC's Meet the Press that he is prepared to work on reforms with the White House — even compromise on some issues — "if we can find common ground." Sen. Orrin Hatch (R-Utah) Senate Finance Committee chairman, has created working groups tasked with coming up with tax reform plans with the objective of introducing a bill, probably by late this spring.

And there is already common ground to build on: bipartisan support, including at the White House, for a broad package of tax changes affecting businesses. Treasury Secretary Jack Lew recently said the administration could support reforms that lower top tax rates for big corporations, eliminate unfair loopholes and simplify the entire system for businesses. Republicans generally are on board, but insist that small businesses be part of the solution.

So there's a chance that a bipartisan corporate tax reform bill could be cobbled together this year.

What about comprehensive tax reforms for individuals of the type that inevitably would involve significant changes in current preferences for homeowners and tax increases for higher income households? Highly unlikely.

Bottom line: Homeowner tax breaks are safe for the time being, probably until 2017 at the earliest.


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Stored Honda CR-V picks up a bad case of rotor rust

We stored our 2013 Honda CR-V in our detached garage last winter. When we drove it last spring there was a loud grinding when the brakes were applied. The Honda dealer told us that the brake rotors had rusted over the winter and that to remove the build-up was not covered by warranty and would reduce the longevity of the rotors. They told us it would disappear with usage but the grinding has not gone away. Is this condition permanent? Is there anything we can do to ensure this doesn't happen again when we store the vehicle?

A light buildup of corrosion on the surface of cast iron brake rotors after a period of non-use is not uncommon. In fact, our Passat develops enough to feel and create a light grinding sound after being parked for just a few days in damp conditions. Applying the brakes while driving the car quickly "cleans" the rotors and eliminates the noise.

Carmakers typically do not cover normal "wear" components such as brake pads and rotors so I wouldn't expect any warranty coverage. It's worth having the rotors carefully inspected to see if "turning" them to remove the rust is viable. If so, this should eliminate the grinding without dramatically reducing rotor life.

However, since the grinding hasn't been eliminated during normal driving, the rust may be deep enough that replacement is warranted. To prevent this from happening again, spray the brake rotors with an aerosol rust preventative when you store the car for the winter, then flush the rotors with aerosol brake cleaner prior to driving in the spring.

...

My 2012 BMW 750Li is just over two years old and has 25,000 miles. Whenever it gets below 15 degrees F, I get warnings that the battery is running low and I should put it on external charge. I have had it into BMW service at least five or six times and they say it is fixed, but as soon as it gets cold — same thing. Last time I complained, they said BMW has no known solution.

Ask the dealer to check BMW service bulletin No. SI B61 03 13 dated August 2013. It deals with the high battery discharge warnings compounded by frequent short trips and cold weather placing a high demand on the battery. The bulletin recommends testing, and if necessary, replacing the original 90AH battery with a 105AH battery.

...

What is the correct way to rotate the tires on my 2011 Chevy Silverado? I just had them rotated, but not according to the owner's manual.

Your owner's manual recommends rotating the tires every 7,500 miles by moving the front tires to the opposite side on the rear, and the rear tires straight forward to the same side on the front.

I've seen suggestions that include crossing the rear tires to the opposite front and moving the front tires straight back, just switching the tires front to back on the same side and alternating the rotation pattern at each rotation.

The amount of tire wear "wastage" due to failure to rotate tires is staggering. In my opinion the method of rotation isn't nearly as important as the need for tire rotation every 6,000-7,500 miles, period.

...

I have a 1999 Camry 2.2-liter with 160,000 miles. It has developed a series of oil leaks from the valve cover, timing belt shaft, oil pan gasket and now the rear main seal. My mechanic says that excessive crankcase pressure due to worn valves or rings is forcing oil out of the assorted seals. Any suggestions?

The engine is "tired." The KISS principle says to check, clean and frequently service the PCV — positive crankcase ventilation — system and valve and make sure there are no air leaks into the engine that could defeat the PCV system.

Paul Brand, author of "How to Repair Your Car," is an automotive troubleshooter, driving instructor and former race-car driver. Readers may write to him at: Star Tribune, 425 Portland Ave. S., Minneapolis, Minn., 55488 or via email at paulbrand@startribune.com. Please explain the problem in detail and include a daytime phone number.


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Docs track patients live via mobile apps

Boston area doctors are relying more on mobile apps and social media to keep tabs on their youngest patients — giving new insight into a group whose health updates can get lost in translation, experts say.

"Children use behaviors and code language at times to communicate symptoms that wouldn't be used by adults," said Dr. Alisa Niksch, a pediatric cardiologist at Tufts Medical Center. "It is very difficult to interpret, and they need that extra tool to help discern what's happening."

Niksch said she tracks about 15 to 20 of her patients using an AliveCor monitor and free mobile app which collects data with a heart-monitoring device that reads activity from the patient's fingertips or chest wall and attaches to a mobile phone.

"Parents of children with heart issues are afraid that things like an irregular heartbeat won't be caught early enough," she said. "It's important to get some actually objective data."

It's not just patients with physical ailments who benefit from remote monitoring, according to Dr. Marilyn Augustyn, a pediatrician at Boston Medical Center, who gets updates on patients with Attention Deficit Disorder through an app from Boston-based startup mehealth for ADHD.

The app allows doctors to gather more information for diagnosis and assessment, Augustyn said, and gives teachers and parents easier ways to report their own observations.

"It's really useful for children with certain behavioral and developmental problems to see them in different settings. I may see them in my office, but that's not where they live or where they learn," she said.

Ken Tubman, chief technology officer for Optimal Medicine and its mehealth for ADHD app — which was founded in 2009 and gained venture capital funding in 2012 — said health apps are gaining traction with doctors.

"Health care is a growing industry, especially in software," he said. "As far as I can tell, it'll continue to grow over the next 10 years or so."

Dr. Joseph Kvedar, director of Partners Center for Connected Health at Massachusetts General Hospital, which conducts research on health care outside of medical centers, said using tools like apps and social media can be especially useful for teenagers, who are most comfortable with digital interactions.

He said the center just wrapped up a yearlong study that used Facebook to connect teens with asthma to one another, which helped them be more in tune with their illness, and as a result they were more aware of their symptoms.

"During the trial, the kids were so enthusiastic that we had to ask for an extension on the study because they didn't want to leave the group," he said.

He added that using technology like apps can also be effective in diagnosing and managing autism spectrum disorders, because different cues are used to make assessments.


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Booting Up: App shows drivers the best Waze to go

Something is very wrong when Google has better traffic data than government transportation departments. That's why I applaud Boston Mayor Martin J. Walsh for successfully ensuring Boston was one of 10 cities in the world selected to share and receive data with Waze, the groundbreaking social navigation app that Google scooped up for 
$1.3 billion two years ago.

Waze, which integrates with social networking apps, allows users to report road hazards and accidents in real-time. But the real gamechanger is how it calculates the best routes: by tracking the speed of its users in real-time rather than relying on traffic cameras. Waze recalculates your route frequently, adapting to a live-stream of traffic data and basically putting every other navigation service to shame.

Hub officials say the city will be able to share information on expected road closures with all of Waze's 400,000 users in Greater Boston, making the mobile navigation app even more accurate for those users. Waze, in turn, will provide streams of traffic data to the city's Traffic Management Center, which is akin to our municipal command center. City officials promise that engineers will use that data to better calibrate the city's 550 intersections with traffic signals.

"This partnership will help engineers in the TMC respond to traffic jams, accidents and road hazards quicker," said Boston Transportation Department Commissioner Gina Fiandaca.

"And, looking forward, the Waze data will support us in implementing — and measuring the results of — new congestion management strategies."

The Waze data-
sharing partnership launched several weeks ago after months of development. Time will tell whether — or when — these new data efficiencies will trickle down to the commuters on the ground. Road relief doesn't appear to have happened yet, but that should be motivation for Boston drivers to use Waze. The more drivers use it, the more accurate it becomes.

It's natural to wonder why this new partnership didn't prevent Boston from becoming a commuter abyss over the last week. I wondered the same thing while chatting with Fiandaca yesterday, but then I remembered: that black hole of vehicle gridlock and agonizing public transit? The MBTA's fault.

So while this is a great example of government embracing innovation, we're only as strong as our weakest link, or in this case, rail. Here's hoping Waze and Google turn their attention to public transit next.


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