Posts Tagged ‘ligand’

Street lamps turned off to save money

Pátek, Září 21st, 2012

A Mendip village is one of 14 communities which will be trying to cut the amount of light pollution.

Leigh-on-Mendip will be part of a Somerset County Council trial to cut the number of street lamps and the hours they are lit.

Apart from turning the lights off in the 14 villages between midnight and 5.30am there will be other changes in different parts of the county.

This will include some lamps being removed and some dimmed.

The idea behind the scheme is to cut the amount of light pollution produced and energy consumed.

The first three years of the plan are expected to save the council 123,000 in energy costs and 8,300 in carbon tax payments, with continued annual savings for the lighting budget.

Cabinet member Harvey Siggs said: “The advances in lighting technology and the funding available are making this a worthwhile exercise in improving Somerset’s night skies and reducing the council’s energy costs.

“There will be consultation everywhere it is proposed to turn off street lamps, and I’m sure people in Somerset will welcome the choice of how their streets are lit, and the opportunity to contribute to cash savings and darker skies.”

The police have not raised concerns about crime or safety in the areas volunteering, which include many on Exmoor, enhancing the National Park’s stargazing experience – the first place in Europe to be designated a Dark Sky Reserve.

There will be further opportunities for towns and villages to join the part-night lighting trial over the next three years with a budget of 750,000 to pay for the changes.

In villages with only one or two street lamps the option to remove them will be presented to the community when they are due for replacement.

Meanwhile, residential developments across the county are already benefiting from advances in light emitting diode technology (LED), which will mean 60 per cent less spent on energy for lighting compared to existing sodium lamps.

New streets and areas that need extra lighting or replacement lamps are being fitted with LEDs. These combine lower maintenance and running costs with long life expectancy and a purer, whiter light.

For safety, no A or B class roads will have lamps switched off during the darkest hours although eight stretches have been selected for dimming to half the usual brightness.

The funding for the three year project has been provided by the Regional Improvement and Efficiency Partnership (500,000), Somerset County Council’s lighting budget (200,000) and 75,000 received within the Council’s Performance Reward Grant from Government.

Lowe’s Unveils “Smart Home” System

Úterý, Leden 10th, 2012

Home-improvement retailer Lowe’s will bring the “smart home” concept closer to the mainstream, selling kits to let users manage homes through the cloud.

The company is pairing with AlertMe, a U.K.-based company that will provide equipment and a cloud-server. The kits will connect thermostats and alarm systems to a home network, which users can access through the Internet or an app to manage, giving them access to device settings.

The products, set for release later this year, will be affordable for “the mass market,” according to Kevin Meagher, vice president and general manager for the smart home program at Lowe’s.

Lowe’s said customers likely will be attracted to the cost-savings and convenience of the smart technology, which can link a home’s devices into a network, making them more accessible. The company partnered with AlertMe because its system is able to control multiple devices from a single app.

The new kits are part of a larger trend linking mobile devices with users’ homes. For example, last summer, Google unveiled its Android home program, which partnered with Lighting Science Group to build a wireless home lighting network that can be remote-controlled with an Android smartphone.

Google also plans to create a wireless home theater system that also controllable with a smartphone, under its “Project Tungsten” program, its blueprint for a connected-home.

However, since Lowe’s new products are cloud-based, homeowners will be able to access their devices’ controls through any computer or mobile device they log onto and won’t be limited to only one OS. AlertMe charges a monthly fee for its U.K. customers, but Meagher said U.S. customers will likely not need to pay extra fees. The website for the systems will be operated through Lowe’s.

Lowe’s new system is expected to drive product sales for the company, because over time, many more of the company’s products will be Internet-enabled.

“We think there’s a real danger the whole market could stall if we just let all our manufacturing partners stick things on the shelves without considering the broader interests,” Meagher said. “Consumers stand to get confused by the technology and lose the real benefits.”

The base AlertMe system includes a wireless thermostat, plugs, and a small network hub. The full system will also include security gear, including a wireless front door lock and motion detection system. The kits will work with Wi-Fi, Zigbee and Z-Wave wireless connections.

As more people become connected with smartphones and tablets, home management systems likely will continue to grow and help people remain linked with their homes, even if they’re miles away from their own front doors.

Library Project Utilizes State of Illinois Energy Efficiency Incentives

Pátek, Září 2nd, 2011

Helping reduce energy consumption, BlueStar Energy Solutions recently designed an energy saving lighting solution for the Village of Franklin Park’s Public Library.  Through the implementation of LED technology, BlueStar Energy helped the library achieve a 56 percent reduction in energy consumption.

The project focused on ways to earn energy cost savings, enhance the lighting levels in the library to address concerns about poor quality lighting; reduce overall wattage usage; and use the “greenest” technology available in the marketplace.  BlueStar Energy worked with the Illinois Department of Commerce and Economic Opportunity to secure approximately $19,000 in energy efficiency incentives toward the project by demonstrating the anticipated savings through the application of LED technology.

Troy Hammond, President of BlueStar Energy’s Demand Side Management said, “We are proud to help customize energy efficiency solutions for the Franklin Park Public Library, helping realize the potential for energy savings and meet their needs with new LED technologies.”

After an extensive facility audit, BlueStar Energy recommended an innovative LED lighting control system.  In addition to exceeding the principal need for enhanced lighting, the new system maximizes daylight harvesting technology, provides full dimmable controls and occupancy sensors.

“We had a unique challenge for BlueStar Energy to design an energy solution that met our residents’ needs for better lighting in the library,” said Stan Monkus, Franklin Park Public Library Business Manager. “We were presented with a comprehensive engineering report that demonstrated the savings earned through the use of LED technology, and we could not be happier with BlueStar Energy’s commitment with achieving our vision.”

Which brings us to the cuts. And an admission of personal interest.

Čtvrtek, Srpen 25th, 2011

I liked Harry’s column and was a regular reader, sometimes to marvel at the haplessness of some of the people asking him questions and the gentle, helpful responses he offered. He is also a seriously nice man.

I also like Signe’s strip and have been her friend since the days when she was very young and riding around the city on a bike with freelance art rolled in a tube. As an old editorial page editor, the loss of op-ed space makes me twinge. As a former feature buyer for the Daily News and lover of comic art, losing a page of comics turns the twinge into real pain.

Twenty full columns a day is a lot. Some of the choices aren’t the ones I would have made, but I don’t have the responsibility for making them.

It’s not a question of preference. For instance, I don’t really care whether the local anchordude and the anchorchick beside him are fiercely feuding or enthusiastically canoodling. As an editor, though, I have to acknowledge that a lot of people who buy the paper do care. Some of them can even tell one Kardashian from another. So space devoted to gossip is probably well-spent.

If I were making choices for any newspaper these days, I’d be seriously looking at some traditional pillars of the paper. Stock listings are a thing of the past. TV listings take up a lot of space and need a survey to determine how useful they are to readers. Personally, I haven’t used them in decades, but it’s important to know how many people still find them essential. Does anybody care about the horoscope? If the newspaper business can’t evolve, it will go the way of the woolly mammoth. In the last month, the Daily News evolved.

The current business climate for newspapers is brutal. It began years ago. I had to take reader calls back when the DN dropped its bridge column. You wouldn’t think people who play bridge would be that fierce, but they were. The calls about the “Phantom” and “Mary Worth” comic strips were less polite. The artist who drew the “Ghost Who Walks” organized a campaign for his restoration (it didn’t work) and even meddlesome Mary had her devoted fans.

Screens set to go green

Úterý, Srpen 23rd, 2011

In addition to offering significant energy savings over conventional LCD-based displays, OLED screens improve picture quality by producing richer blacks; they also offer a wider viewing angle. In an LCD screen, each pixel is effectively a little filter, selectively blocking light produced by a large backlight. In an OLED screen, however, each pixel is a tiny light emitter such that no backlight is needed. This means that pixels in dark areas of the image consume no power, reducing energy use.

To maximize the energy-saving benefit, screen makers select OLED materials that most efficiently convert electrical current into light, a property known as high external quantum efficiency (EQE). Some of the best materials are phosphorescent metal complexes, but these are typically composed of rare and expensive metals such as iridium.

Copper complexes have long been known as potential alternatives, and would cost 1/2,000th that of iridium phosphors, according to Osawa. Until the work of Osawa and his colleagues, however, these copper complexes had a low EQE. Such complexes can be readily excited into a high-energy state, but they tend to physically distort, which dissipates their extra energy rather than emitting it as light.

The researchers resolved this problem by altering the molecular environment in which the copper sits. They wrapped each copper ion inside a newly designed bulky organic ligand. They then conducted X-ray diffraction studies, which revealed that the ligand had forced the copper to become three-coordinate—it had formed three bonds to the ligand, rather than the usual four.

Osawa and colleagues also demonstrated that the EQE of their green-light-emitting copper complex increased dramatically and matched that of iridium complexes. “The three-coordinate structure is a crucial factor for high EQE, because it hardly distorts in the excited state,” Osawa explains.