It is not only about brightness drop - your LED strip may well change in shade!

　　　Additionally to dimming in excess of time, if elements degrade another fees, an LED can actually start to shift in coloration around its lifetime. Although the extent of your colour change is noted in LM80 examination stories, this is certainly almost never described in LED strip requirements. Correspondingly, you may be difficult pressed to uncover documentation on what exactly is a suitable stage for both equally your software and also the industry as a whole.hong kong university master

　　If you're able to get ahold of possibly the LED manufacturer's LM80 take a look at experiences, or maybe a metric referred to as "delta u'v'" - you may get a way of coloration security by maintaining in your mind that a delta u'v' around 0.003 is taken into account apparent towards the human eye. Frequently, delta u'v' less than 0.006 more than the LED strip products' lifetime is taken into account appropriate for the majority of indoor lights apps. However, for more demanding apps this kind of as museums and lights up artwork, you could would like to pick out a product with far better colour balance above time.

Join us at finest Design Nest, a Hong Kong Co-working Space in Lai Chi Kok.

　　LED strip life span isn't nearly the LEDs!Even though LED longevity is considered the most talked over facet of LED strip lifetime, it is actually in fact the adhesive and ability offer that happen to be equally as likely to are unsuccessful, and when they do, fall short catastrophically.

strip lights and light ribbons offered by Brilliant Lighting are low in power consumption yet high intensity, making them perfect for decorative use including amusement parks, theatres, cars and others.

　　The adhesive backing around the LED strip can be topic to your variety of environmental ailments these kinds of as dust, humidity and sunlight exposure, which could degrade the adhesive over time, ensuing inside the LED strip falling off of its mounted floor.

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蹲便器與馬桶的對比

　　1、蹲便器在市面上來說相對價格實惠，對空間要求小，畢竟沒有馬桶結構複雜，也適合比較衛生間比較小的空間，而馬桶占空間就多了。

性價比高，水龍頭和花灑頭 好用，一個改變就可以改善生活品質。

　　2、舒適程度：有的人覺得上廁所的時候，還是蹲著更舒服，因為人在排便時，腹部壓力肯定是增大的，但在馬桶上的話基本是呈90度姿勢，也不好用力，無形中上廁所的時間就會增長很多。時間長了還會引起一系列的問題，如便秘等，相反蹲著時，腹部更有力，更容易排便。

　　3、健康問題: 許多人外出時應選擇蹲廁，因為蹲廁不需要與身體接觸，而且可以減少與細菌的接觸，更安全、更衛生。但是有了廁所，需要接觸身體，也增加了細菌的幾率，特別是一些公共場所，真的很髒啊。另外，不要以為是廁所用的家，沖洗幹淨，其實還是有很多的細菌留在上面，所以最好的時間來沖馬桶蓋。因為沖水的時候，馬桶內的細菌等會隨著氣壓升高6米，還能懸浮在空氣中很長時間，容易落在洗手間中的物品上，因此一定要定期清潔，細菌的存活率很高，能長達半個月呢。

3個雨淋花灑 套裝 推介 哪隻花灑頭 好用？

　　4、堵塞的問題：蹲便器不容易堵塞，而廁所是不一樣的設計原則，產品本身相比，價格普遍較高比廁所蹲便器，相差的兩個生活也是如此。廁所水箱是最容易出錯的地方之一。如果你不小心使用它，倒一些額外的水分到廁所很容易導致它堵塞。而蹲便器則不存在蹲坑會出現什么問題，哪怕用一輩子也不會出現任何問題的，最多也就是沖洗閥出現問題而已，所以從產品本身方面而言選擇蹲便器為上。

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Zarifakou always knew she would be an art teache

Zarifakou always knew she would be an art teacher. “It wasn’t even a choice. Even from when I was at primary school my parents used to get complaints from my teachers saying: ‘She’s just so bossy, she tells us what to do.’ It was a vocation. I just knew.” Born in north-west London to Greek-Cypriot parents, and state-educated in Brent and Camden, she was promoted to deputy head of art within a year at Alperton, and is now associate deputy school head. Married to a fitness instructor, with two daughters aged 7 and 9, she is at work every morning by 7.30am, leaves at 5.30pm if lucky, often much later, and starts work again at home once the kids are in bed. “I don’t watch TV. I don’t ever even go into my living room. Even in my lunch, I’m working. The only time I break is when I’m in my bed.”

I tell her that while she was away in Dubai, a report on teachers’ pay was published. The average teacher earns ￡17.70 an hour. “See, that’s disgusting,” she says with feeling. When I ask what she would change if she were education secretary for a day, though, she doesn’t mention money, but proposes the introduction of a reward system of praise and appreciation for teachers, to acknowledge the extraordinary work they do.

A condition of the Global Teacher prize’s $1m pot is that the winner continues to teach for five years, but this clause strikes me as laughably unnecessary. Zafirakou plans to spend the money on projects to promote the arts, both in the school and the wider community of Brent, but I’m not sure the money has even fully sunk in. She seems to be still trying to absorb her new status as the best teacher in the world – but when not dazed and reeling she is already thinking about how to use her new platform to influence education.

If she could go back in time to her first day as a teacher, and tell herself one thing she has learned about the job since then, what would it be?

She thinks carefully. “That it’s all about building relationships. Instead of worrying about teaching the curriculum or making sure that you’ve got a strict classroom environment, build your relationships first. Get your kids on board, connect with them, find out what it is that they’re interested in. Build the relationship, build that trust. And then everything else can happen.”

It occurs to me that this is exactly what business people always say about their jobs. So do bankers, estate agents, marketing executives, hedge fund managers. Why our education system is premised on an assumption that the same does not apply to teaching is a mystery, but Zafirakou thinks she can explain.

“We are too frightened. Some teachers feel that they need to know everything, and always be the person with the knowledge. But I think sometimes the most beautiful thing about being a teacher is when you ask the child to teach you.”

原文地址：https://www.theguardian.com/education/2018/mar/23/best-teacher-in-the-world-andria-zafirakou-build-trust-with-your-kids-then-everything-else-can-happen