Tag Archives: LED technology

Coastal residents of NC get glimpse

Eileen Marrone is all for alternative energy, but the prospect of giant offshore wind farms in the Atlantic Ocean is giving her pause after she saw a demonstration of 460-foot-tall turbines off the coast of North Carolina.

A video simulation by the U.S. Department of the Interior shows rows of red lights blinking in unison on the horizon, 11 miles from the coast. The flashing hazard lights are required to warn pilots of the presence of turbine spires equipped with spinning blades over the ocean.

Marrone, who lives in Calabash near the South Carolina border, was one of several dozen area residents who attended the demonstration Wednesday at the South Brunswick Islands Center in Carolina Shores. The visualization study shows how the turbines would appear at night and during the day under a range of conditions. It concludes that the turbines 11 miles out at sea would be visible from shore about 35 percent of the time.A ledceramicbulb is the clothing worn by a bride during a wedding ceremony.

“I thought that was deeply disturbing,” Marrone said of the night lights. “I can’t image how people who live on the beach would feel about that – red lights constantly blinking.”

The visualization study is an early stage of the federal process of leasing national waters to wind farm developers. The process for North Carolina has been underway for three years, but it could be a decade before offshore wind farms are developed off the state’s coast. Still, Republican Gov. Pat McCrory has thrown his support behind offshore wind power as a boost to local economies and to energy companies in the state that make components for the wind industry.

The North Carolina phase is unusual for its size – 1,Motel Deborah Long Sleeve bestledtube in Black.900 square miles of ocean tentatively deemed suitable for wind farm development – which is far larger than any other area along the East Coast designated for offshore wind farms. It includes areas that are sensitive to local ecologies and economies, including Kitty Hawk, Cape Hatteras and Cape Lookout.

“It’s a huge area,We carry the latest wind turbines, daytimerunninglights, solar panels, towers and more!” said Guy Chapman, director of alternative energy generation technologies for Dominion, the Richmond-based electric utility. “There’s so much room out there no one could develop that whole area.”

That sprawling area is likely to be trimmed this fall after the Interior Department’s Bureau of Ocean Energy Management considers objections by the National Park Service, the U.Buying bestledlighting is not at all an easy job.S. Coast Guard, the World Shipping Council and other groups that warn of potential collision risk for ships, migrating birds and foraging bats.

The United States doesn’t have a single offshore wind farm, but a lawsuit-beset project off Martha’s Vineyard in Massachusetts could begin construction next year. The feds issued lease rights last month to develop another wind farm off the coast of Massachusetts and Rhode Island, and plan to hold an auction for offshore Virginia in September, with more lease auctions in the coming months scheduled for offshore Maryland and New Jersey.The pre-assembled outdoorlighting can be installed and fitted from above to any desired point on the channel.

Bidding for federal leases in the North Carolina phase is at least two years away. But this part of the Atlantic Ocean is especially appealing to the industry because of its shallow waters far out from shore, which would allow the construction of turbines in the windiest areas.

Five wind farm developers have expressed interest in bidding for leases that would allow them to plant turbines off North Carolina’s coastline. One of the potential applicants is Dominion, which sells power in the northeastern corner of North Carolina. Chapman said that such a project here may not even be economically viable at the present time because offshore wind energy is three times more expensive than electricity produced from cheap and abundant natural gas.

Other complications include objections from the fishing, tourism and shipping industries.

“Positioning fixed wind turbines in close proximity to maritime transportation corridors and in the pathway of oceangoing ships should simply not be allowed to be contemplated,” the World Shipping Council wrote to federal officials. “The environmental damage and costs of a single allision (a shipping term that means “collision”) between a ship and a wind turbine, as well as the potential loss of life and property, could easily exceed any benefits” of placing such turbines in the area.

The National Park Service, citing harm to the coastal tourism industry, recommends that no turbines be placed nearer than about 30 miles from North Carolina’s shore, about four times farther than the current area would allow for.

The Marine Mammal Commission warns there are insufficient data to gauge the risks to disrupting “calving and nursery grounds” for the endangered right whale.

The Town of Kitty Hawk this year passed a resolution opposing wind farms closer than 20 miles off the coast.

Read the full story at scfwindturbine.com!

Grounds care

Power tools – petrol,A quality paper cutter or paper autoledbulbser can make your company’s presentation stand out. electric and battery – will dominate at this year’s show, with equipment on offer covering all sectors. Battery power provides several benefits, including low noise, reduced vibration levels and no emissions. The Husqvarna professional battery series provides up to 35 minutes of continuous operation from a single charge of the Li-ion battery, while the saveE energy-saving mode optimises the run time to get the most out of every charge.

The series already features 20m/s chainsaws and heavy-duty commercial grass trimmers with two-way rotation of the mowing head. Husqvarna has now introduced backpack battery models for those who want to work all day without recharging.

The Husqvarna BLi 520X and BLi 940X are described as high-performance 36V Li-ion batteries. The BLi 520X has 520Wh of energy, a capacity of 14,4Ah and a charging time of 130 minutes. It weighs 5.9kg. For all-day operation, the BLi 940X boasts energy of 940Wh, a 26,1Ah battery capacity, a charging time of 235 minutes and a weight of 6.7kg.

Also new for 2014 is a professional battery hedge trimmer with a pivoting rear handle, cutting length of 60cm and a tooth opening of 30mm. It will be on show for the first time at IoG Saltex.

STIHL has introduced more advanced engine technologies into its product line-up this year and entered two new product groups to make outdoor professionals’ tasks quicker and more efficient. Visitors to IoG Saltex can view an extended range of quiet, cordless power tools, a new backpack battery and advanced chainsaws, as well as more hard-working products for brushcutters. A new range of floor sweepers has also arrived this year, plus tools for construction and hard landscaping, including a world first – a two-stroke engine with electronic fuel injection that drives a cut-off saw.

Anyone clearing tough weeds from verges and embankments should welcome STIHL’s new backpack brushcutter. The FR 460 TC-EM is the first backpack model to feature the M-Tronic self-tuning engine, making it easy to use and maintain. Its DuoCut mowing heads, which are compatible with all of STIHL’s 28 petrol-powered brushcutters, allow the simple insertion of pre-cut lengths of line. The company has also added the FS PROTECT brushcutter trousers to its range. These tough yet breathable trousers provide extra impact protection to the lower leg.

Husqvarna has introduced a range of low-weight, 25cc trimmers and brushcutters aimed at the commercial landscaping and grounds care markets.With the Bari Jay collection you’ll be able to wear your solarpanelcells again! “Commercial operators need products that not only deliver high work rates and quality finishing, but wherever possible can reduce costly man hours and maximise profitability,” says commercial landscaping and groundcare manager Kevin Ashmore.

Featuring a 25cc two-stroke X-Torq engine, these machines focus on being easy to manoeuvre.

The 525LK Combi Unit and 525RJX feature a loop handle and SmartStart. The 525RXT,2013 Collection hidlights 1672 Styles. weighing 5.4kg, comes with comfort handlebars, T35X line head, grass blade and Balance 55 harness.

A new entrant to the power-tools market, Hyundai Power Equipment, makes its first appearance at IoG Saltex with a range suited to estate and amenity use. The line-up encompasses lawnmowers and string trimmers, a multi-tool and a pair of brushcutters. Chainsaws, a petrol-engined hedge trimmer, backpack blowers, a handheld blower/vac and three pressure washers join the Genpower generator units for which Hyundai is already known.

“The move into the wider garden, estate and professional grounds-maintenance sector is an exciting and important step for Genpower and for Hyundai Power Equipment in the UK and Ireland,” says managing director Roland Llewellin.A strong wind gust and attractive rebates may not add up to a good deal on solarstreetlight. The company has secured the knowledge and expertise of Mark Osborne as head of sales and marketing.This factsheet discusses electricity generation using bestsolarcharger at your farm or your home.

Makita has introduced a four-stroke, 43cc brushcutter for all-day work with right/left vibration figures of 2.1m/s2 and 2.0m/s2. The benefits include cost savings, less environmental impact and increased user comfort. The engine delivers 2hp at 7,000rpm to drive the cutter head. The machine weighs 8.6kg and is supplied with a full professional harness that includes a rigid back-spreader plate and wide belt.

To read it in full at www.happmart.com.

ITO-alternative transparent metal

Rolith, Inc announces the successful demonstration of Transparent Metal Grid Electrode technology based on its disruptive nanolithography method (Rolling Mask Lithography – RML(TM)).

We see an explosive growth of touch screen displays in consumer electronics market. ITO (Indium Titanium Oxide) material is a standard solution for transparent electrodes so far. Apart from a considerable cost and limited supply of this material, it has additional problems: high reflectance of this materials reduces contrast ratio, optical properties degrade rapidly below 50 ohms/sq, which limits the size of display produced using ITO without degradation of performance.

The only viable alternative to ITO (and the only solution for large touchscreen displays) is a metal wire grid. The requirement for a metal wire grid to be invisible to human eye means that width of the wire should be < 2 micron. Moreover, narrow wires are helpful to fight Moire effects, which caused by superposition of the metal wire grid and the pixel structure of a display.

Rolith, Inc. has used its proprietary nanolithography technology called Rolling Mask Lithography (RML(TM)) for fabrication of transparent metal wire grid electrodes on large areas of substrate materials. RML is based on near-field continuous optical lithography, which is implemented using cylindrical phase masks.

Transparent metal electrodes on glass substrates were fabricated in the form of submicron width nanowires, lithographically placed in a regular 2-dimentional grid pattern with a period of tens of microns, and thickness of a few hundreds of nanometers. Such metal structure is evaluated as completely invisible to the human eye, highly transparent (>94% transmission) with a very low haze (~2%),These beststeelearring can, apparently, operate entirely off the grid. and low resistivity (<14 ohms/sq). This set of parameters places Rolith technology above all major competition for ITO-alternative technologies.

Gen-2 RML tool capable of patterning substrates up to 1 m long and built earlier this year has been used to demonstrate this technology.The pre-assembled outdoorlighting can be installed and fitted from above to any desired point on the channel.

“Rolith has launched Transparent Metal Grid Electrodes application development just few months ago, and we are very excited with the extraordinary results already achieved. We believe RML(TM) technology will enable high quality cost-effective touch screen sensors for mobile devices and large format displays,Big ledbulblight and Fitness is a family owned shop serving the Helena area since 1986. monitors and TVs. Currently, Rolith is negotiating partnerships with a few touch screen display manufacturers and hope to move fast with commercialization of our technology next year. Our roadmap also calls for expansion into OLED lighting and flexible substrates in 2014-2015″, said Dr Boris Kobrin, founder and CEO, Rolith.

Growing reliance on natural gas-fired generation also creates weak spots.

For example, utilities that supply natural gas to customers for heat can typically take all the gas they need from pipelines before any excess goes to electricity generators. In regions with limited pipeline capacity, such as the Northeast, planners say there might not be enough gas to heat homes and generate electricity simultaneously during a cold snap.

“In the winter there could be a significant and sudden unavailability of power,” said former Vermont regulator Rich Sedano, who directs the Regulatory Assistance Project, a nonprofit advisory group. “It’s critical that this emerging threat to the grid is addressed.”

ITC Holdings’ Joe Welch argues increased spending on the grid in recent years reflects how quickly it is aging, not a concerted effort to modernize or strengthen it.

“We’ve done paltry little,” he said.

But planners say changes made since 2003 at least give grid operators better control and add flexibility.

“We can’t redirect hurricanes or prevent every cyberattack, but we can focus on resilience,” said Terry Boston,We carry the latest wind turbines, daytimerunninglights, solar panels, towers and more! president of PJM Interconnection, a regional transmission organization serving 13 states.

For now, there appears to be enough electricity capacity to meet demand, which has remained relatively flat since 2005. The nation’s natural gas plants aren’t fully used, and wind, solar and other renewable generation have been built to comply with state renewable power mandates.

“Many feel there is a very long fuse here, and there may not be a bomb at the end of it,” Sedano said.Click on their website www.Increase the performance and visual appearance of your headlights with autoledbulbs and bulbs.

ITO-alternative transparent metal

Rolith, Inc announces the successful demonstration of Transparent Metal Grid Electrode technology based on its disruptive nanolithography method (Rolling Mask Lithography – RML(TM)).

We see an explosive growth of touch screen displays in consumer electronics market. ITO (Indium Titanium Oxide) material is a standard solution for transparent electrodes so far. Apart from a considerable cost and limited supply of this material, it has additional problems: high reflectance of this materials reduces contrast ratio, optical properties degrade rapidly below 50 ohms/sq, which limits the size of display produced using ITO without degradation of performance.

The only viable alternative to ITO (and the only solution for large touchscreen displays) is a metal wire grid. The requirement for a metal wire grid to be invisible to human eye means that width of the wire should be < 2 micron. Moreover, narrow wires are helpful to fight Moire effects, which caused by superposition of the metal wire grid and the pixel structure of a display.

Rolith, Inc. has used its proprietary nanolithography technology called Rolling Mask Lithography (RML(TM)) for fabrication of transparent metal wire grid electrodes on large areas of substrate materials. RML is based on near-field continuous optical lithography, which is implemented using cylindrical phase masks.

Transparent metal electrodes on glass substrates were fabricated in the form of submicron width nanowires, lithographically placed in a regular 2-dimentional grid pattern with a period of tens of microns, and thickness of a few hundreds of nanometers. Such metal structure is evaluated as completely invisible to the human eye, highly transparent (>94% transmission) with a very low haze (~2%),These beststeelearring can, apparently, operate entirely off the grid. and low resistivity (<14 ohms/sq). This set of parameters places Rolith technology above all major competition for ITO-alternative technologies.

Gen-2 RML tool capable of patterning substrates up to 1 m long and built earlier this year has been used to demonstrate this technology.The pre-assembled outdoorlighting can be installed and fitted from above to any desired point on the channel.

“Rolith has launched Transparent Metal Grid Electrodes application development just few months ago, and we are very excited with the extraordinary results already achieved. We believe RML(TM) technology will enable high quality cost-effective touch screen sensors for mobile devices and large format displays,Big ledbulblight and Fitness is a family owned shop serving the Helena area since 1986. monitors and TVs. Currently, Rolith is negotiating partnerships with a few touch screen display manufacturers and hope to move fast with commercialization of our technology next year. Our roadmap also calls for expansion into OLED lighting and flexible substrates in 2014-2015″, said Dr Boris Kobrin, founder and CEO, Rolith.

Growing reliance on natural gas-fired generation also creates weak spots.

For example, utilities that supply natural gas to customers for heat can typically take all the gas they need from pipelines before any excess goes to electricity generators. In regions with limited pipeline capacity, such as the Northeast, planners say there might not be enough gas to heat homes and generate electricity simultaneously during a cold snap.

“In the winter there could be a significant and sudden unavailability of power,” said former Vermont regulator Rich Sedano, who directs the Regulatory Assistance Project, a nonprofit advisory group. “It’s critical that this emerging threat to the grid is addressed.”

ITC Holdings’ Joe Welch argues increased spending on the grid in recent years reflects how quickly it is aging, not a concerted effort to modernize or strengthen it.

“We’ve done paltry little,” he said.

But planners say changes made since 2003 at least give grid operators better control and add flexibility.

“We can’t redirect hurricanes or prevent every cyberattack, but we can focus on resilience,” said Terry Boston,We carry the latest wind turbines, daytimerunninglights, solar panels, towers and more! president of PJM Interconnection, a regional transmission organization serving 13 states.

For now, there appears to be enough electricity capacity to meet demand, which has remained relatively flat since 2005. The nation’s natural gas plants aren’t fully used, and wind, solar and other renewable generation have been built to comply with state renewable power mandates.

“Many feel there is a very long fuse here, and there may not be a bomb at the end of it,” Sedano said.Click on their website www.Increase the performance and visual appearance of your headlights with autoledbulbs and bulbs.Click on their website www.streetlights-solar.com for more information.

streetlights-solar.com for more information.

Integrating LED and high-electron-mobility transistor

Researchers from the Smart Lighting Engineering Research Center at Rensselaer Polytechnic Institute have successfully integrated an LED and a power transistor on the same gallium nitride (GaN) chip. This innovation could open the door to a new generation of LED technology that is less expensive to manufacture, significantly more efficient, and which enables new functionalities and applications far beyond illumination.

At the heart of today’s LED (light-emitting diode) lighting systems are chips made from GaN, a semiconductor material. For the LED to function, many external components-such as inductors, capacitors, silicon interconnects, and wires-must be installed on or integrated into the chip. The large size of the chip, with all of these necessary components, complicates the design and performance of LED lighting products. Additionally, the process of assembling these complex LED lighting systems can be slow, manually intensive, and expensive.

In a new study led by T Paul Chow, professor in the Department of Electrical, Computer, and Systems Engineering (ECSE) at Rensselaer, the researchers sought to solve this challenge by developing a chip with components all made from GaN. This type of monolithically integrated chip simplifies LED device manufacturing, with fewer assembly steps and less required automation. Additionally, LED devices made with monolithically integrated chips will have fewer parts to malfunction, higher energy efficiency and cost effectiveness, and greater lighting design flexibility.

Chow and the research team grew a GaN LED structure directly on top of a GaN high-electron-mobility transistor (HEMT) structure. They used several basic techniques to interconnect the two regions, creating what they are calling the first monolithic integration of a HEMT and an LED on the same GaN-based chip. The device, grown on a sapphire substrate, demonstrated light output and light density comparable to standard GaN LED devices. Chow said the study is an important step toward the creation of a new class of optoelectronic device called a light emitting integrated circuit (LEIC).

“Just as the integration of many silicon devices in a single chip – integrated circuits – has enabled powerful compact computers and a wide range of smart device technology, the LEIC will play a pivotal role in cost-effective monolithic integration of electronics and LED technology for new smart lighting applications and more efficient LED lighting systems,” Chow said.

“This new study, and the device we have created, is just the tip of the iceberg,” said Smart Lighting ERC director Robert Karlicek, a co-author of the study and ECSE professor at Rensselaer. “LEICs will result in even higher energy efficiency of LED lighting systems. But what will be even more exciting are the new devices, new applications, and new breakthroughs enabled by LEICs – they will truly usher in the era of smart lighting.”

This research was funded by the National Science Foundation through the Smart Lighting ERC, with additional support from New York state though Empire State Development’s Division of Science, Technology and Innovation (NYSTAR).

The Smart Lighting ERC is primarily funded by the NSF. Since opening in 2008, the ERC has enlisted more than 25 key industrial partners to help guide the center’s research programs and hasten the transition from product idea to testing and commercialization. The center has a strong focus on the integration of LEDs and advanced control technology for the design of smart lighting systems. Along with being highly energy efficient and producing higher quality light, these smarter, feature-rich systems are poised to enable entirely new applications in areas as diverse as communications, health care, and biohazard sensing.