LONDON: Brazilian midfielder Willian has confirmed he will leave Chelsea after seven ‘wonderful’ years at Stamford Bridge. The 32-year-old, linked with a move across town to Arsenal, posted a farewell letter to the club’s fans on Twitter. “The time has now come to move on. I am certainly going to miss my teammates,” he said. “I leave with my head held high, safe in the knowledge that I won things here and always did my best in a Chelsea shirt!” Willian, who began his career with Corinthians in Sao Paulo, joined Chelsea from Anzhi Makhachkala in 2013 and made over 300 appearances for the club, winning two Premier League titles. He was out of contract this summer and had failed to agree on a new long-term deal with the club. “In August 2013 when I received the offer from Chelsea, I was convinced that this was where I had to play,” he said. “Today I am certain that it was the best of decisions. There were so many happy times, some sad, there were trophies and it was always very intense.” Spanish midfielder Pedro also announced he was leaving the club on Sunday after five years. Agencies Also Watch: Nagaon DC’s Surprise Visit At District Hospital
Spot flooding has been reported in parts of Buncrana this afternoon following a series of heavy downpours.The Fahan area is said to be worst affected, according to Gardaí.Motorists are being advised to slow down on wet roads and allow plenty of extra room between your vehicle and the one in front. Met Eireann has forecast for more isolated showers in the north west tonight.Travel Alert: Flooding in parts of Buncrana was last modified: August 12th, 2019 by Rachel McLaughlinShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window)
Brentford are giving a trial to United States Under-17 goalkeeper Jeff Caldwell, who is also expected to train with Fulham and Arsenal during his time in London.Caldwell, 17, watched from the stands as Brentford were beaten 2-1 at home by Celtic in a pre-season friendly at Griffin Park on Saturday.Currently with North Carolina Fusion, he is hoping to secure a move to England and a number of clubs have expressed an interest in him.Brentford have had another goalkeeper from the USA on trial, Winstone Boldt, who was among their substitutes for the Celtic game.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 Follow West London Sport on TwitterFind us on Facebook
Three recent columns provided a brief history of lighting, an overview of fluorescent technology, and a look at the challenges of improving streetlights. Following a side trip into the issue of “passive survivability,” I’m returning this week to illumination with an overview of high-intensity discharge (HID) lighting.HID lighting involves creating an arc of electricity in a sealed bulb containing mercury vapor and other gases. One of the advantages of HID lighting is long lamp life—which is important in outdoor and hard-to-reach indoor applications. Another advantage is the potential for very high light output from a concentrated light source—useful in illuminating Fenway Park, for example. All HID lamps require a ballast to produce the proper electric current to start and then maintain the electric arc. Because of this ballast, most HID lamps take several minutes to turn on (referred to as restrike delay)—which is one of their drawbacks.There are four basic types of HID lighting:Mercury vapor is the oldest type of HID lamp and still the most common outdoor lighting in some areas. When new, mercury vapor lamps produce a bluish light, though it yellows (and dims) as the lamps age. The efficacy of mercury vapor lamps is mediocre (20-60 lumens per watt), which is better than incandescent, but not as good as most fluorescent or other HID lamps. Because of the relatively low efficiency of mercury vapor lamps, the Energy Policy Act of 2005 banned their manufacture and sale in the U.S. beginning in 2008. So, as the older mercury vapor lamps in use today fail, they will have to be replaced with other options. As described a couple weeks ago in the story about West Dummerston Village, replacing older mercury vapor lights can be problematic.High-pressure sodium (HPS) lamps produce a yellowish-orange light (low “color temperature”); these are fairly common along highways. HPS lamps use high-frequency, high-voltage current to ionize xenon gas in a sealed bulb. This process vaporizes a sodium-mercury amalgam, and when an electric arc passes through this gas mixture electrons are released from the sodium atoms, producing the visible light. The efficacy is very high (up to 150 lumens per watt—compared with about 15 for incandescent lamps and up to 100 for the best linear fluorescent lamps). The light quality of most HPS lamps is quite poor, however, with a color rendering index (CRI) of just 20-25, compared with 85 for the best fluorescent lamps and 100 for incandescent light bulbs (a few newer HPS lamps are better, but with an energy performance penalty). This means that colors don’t look natural under HPS light. HPS light output also drops off significantly over time—“lumen depreciation” in tech-speak.Low-pressure sodium has the highest efficacy of any light source today (up to about 200 lumens per watt) but the light quality is the worst, with a CRI of close to 0. In fact, under the deep-orange low-pressure sodium glow, it’s hard to distinguish a red car from a blue car. Most light sources produce a wide spectrum of light, while low-pressure sodium is limited to a very narrow band—in the orange part of the spectrum. Due to this “monochromatic” nature of the light, astronomers like low-pressure sodium, because they can use filters to block out its light pollution. In towns near astronomical observatories, such as Tucson, Arizona, ordinances are sometimes passed to allow only low-pressure sodium for street lighting.Metal halide has emerged as the most popular form of HID lighting. Introduced around 1960 as a modification of mercury vapor lamps, metal halide lamps incorporate mercury vapor along with such metal halides as sodium-iodide and thallium-iodide. The result is a reasonable efficacy (50-115 lumens per watt) and much better light quality than other HID light sources, with much whiter light and CRI ratings of 65 to 93. They also will restart more quickly if they are turned off (restrike time of just a few minutes). While the efficacy is lower than that of high-pressure or low-pressure sodium lamps, metal halide light shows off colors much better, so it is often possible to get by with lower total light output, thus achieving savings. The expected lamp life of metal halide lamps (10,000 to 20,000 hours) is lower than that of HPS, some of which are rated at over 30,000 hours.The light quality of metal halide lamps is good enough to use indoors, and you will commonly see this form of lighting in big-box stores, warehouses, and other buildings with high ceilings—though in these applications, newer T-5 hi-bay fluorescent lighting, which can be turned off and on instantly, is now providing serious competition. Metal halide is also now the outdoor light source of choice along streets, in parking lots, and in sports stadiums.A big drawback to all HID—plus fluorescent—lighting is the mercury required to produce light. Mercury is a potent toxin, and both the mining of mercury and the disposal of lamps can release the mercury into the environment. Next week we’ll look at LED lighting, a relatively new technology that avoids the mercury.
The NCP has geared up to ensure the defeat of BJP candidate Niranjan Davkhare in the Konkan graduate constituency election to be held on June 25.The NCP will be fielding Najib Mulla, Mumbra MLA and close associate of party MLA Jitendra Awhad. Mr. Awhad said, “Najib will be taking on the BJP candidate Davkhare. We are fighting to win this election. Those who wanted to leave have defected from the party. Now those who have faith in the party will be given an opportunity. We will ensure the BJP loses this election.”Sources in the party said that NCP chief Sharad Pawar had held a meeting of senior party leaders last week and instructed the cadre to ensure Mr. Davkhare’s defeat. A senior NCP leader on condition of anonymity said, “First of all, party leaders are hurt over his decision to join the BJP. Secondly, letting him win the seat would send a wrong message among party activists that anyone who joins the BJP gets the position of power. We cannot let that happen and therefore he has to be defeated.”For the Konkan graduate constituency, which is spread across Raigad, Ratnagiri, Sindhudurg, Palghar and Thane, the NCP have tied up with the Peasants and Workers Party. It is also likely to get support of other regional parties such as the Bahujan Vikas Aghadi. A day after Shiv Sena chief Uddhav Thackeray announced that his party would be contesting future elections on its own, the party said that Thane’s former mayor Sanjay More would be its candidate.Graduate and teacher constituencies in Mumbai will also go to the polls on June 25. The graduate constituency is currently being held by Health Minister Deepak Sawant of the Sena. The party is yet to announce its candidate. Kapil Patil , belonging to Sharad Yadav’s Loktantrik Janata Dal, currently holds the teacher constituency and will be contesting the June 25 poll.