北美LED协会获得石墨发泡技术授权

时间：2010-08-30 03:09:53

（单词翻译:单击）

Technology developed at the Department of Energy's Oak Ridge1 National Laboratory that extends the life of light-emitting diode lamps has been licensed2 to LED North America. The agreement signed today exclusively（唯一地，专有地） licenses3 a graphite（石墨） foam4 technology developed by James Klett of ORNL's Materials Science and Technology Division. LED North America intends to use the graphite foam（泡沫，水沫） to passively cool components5 in LED lamps, which are increasingly in demand in applications such as street lights and parking garage lighting6. LED North America specializes in providing LED lighting products for municipal（市政的） , commercial and industrial applications.

Cooling LED lamps is critical to increasing their efficiency, considering that each 10-degree decrease in temperature can double the life of the lighting components. Using graphite foam to more efficiently7 manage the heat of LEDs could help extend the lamp's lifespan（寿命，生命值） and lower its price, making the lamps more attractive to a broader consumer base. ORNL's James Klett hopes the graphite foam can offer potential savings8 for customers.

"While this technology will reduce temperatures and increase the life of the LED lighting systems, what it will really do is save municipalities millions of dollars every year in replacement9 fixture10 costs as well as maintenance（维修，保持） ," Klett said.

The newly licensed graphite foam invention offers many advantages over comparable heat sink materials such as copper11 and aluminum12. Graphite foam's high thermal13 conductivity, low weight and easy machinability give the material greater design flexibility14 and make it a lighter15, cheaper and more efficient cooling option.

The foam's unusual graphite crystal structure is the key to its conductivity. It has a skeletal structure full of air pockets（气陷，气穴） , making it only 25 percent dense16 and lightweight. The network of ligaments（韧带） in the foam wicks heat away from its source, making it an excellent candidate to cool the LED lamp components.

Championed as an energy saving lighting source, LEDs are becoming more widespread due to their low energy consumption, compact size and long life expectancy17. Improved LED performance will enable LED North America to offer longer warranty18 periods than its competitors.

LED North America's relationship with ORNL helped prompt Andrew Wilhelm, one of the company's founders19, to locate the company in Tech 2020, a business incubator（孵卵器，保温箱） in Oak Ridge.

"The proximity20 to ORNL gives the us the opportunity to work closely with ORNL researchers to further refine the integration21（集成，综合） of the graphite foam material into LED lamps," Wilhelm said.


分享到：


点击收听单词发音收听单词发音  

1 ridge KDvyh     
n.山脊；鼻梁；分水岭
参考例句：
  • We clambered up the hillside to the ridge above.我们沿着山坡费力地爬上了山脊。
  • The infantry were advancing to attack the ridge.步兵部队正在向前挺进攻打山脊。
2 licensed ipMzNI     
adj.得到许可的v.许可，颁发执照(license的过去式和过去分词)
参考例句：
  • The new drug has not yet been licensed in the US. 这种新药尚未在美国获得许可。
  • Is that gun licensed? 那支枪有持枪执照吗？
3 licenses 9d2fccd1fa9364fe38442db17bb0cb15     
n.执照( license的名词复数 )v.批准，许可，颁发执照( license的第三人称单数 )
参考例句：
  • Drivers have ten days' grace to renew their licenses. 驾驶员更换执照有10天的宽限期。 来自《现代汉英综合大词典》
  • Jewish firms couldn't get import or export licenses or raw materials. 犹太人的企业得不到进出口许可证或原料。 来自辞典例句
4 foam LjOxI     
v./n.泡沫，起泡沫
参考例句：
  • The glass of beer was mostly foam.这杯啤酒大部分是泡沫。
  • The surface of the water is full of foam.水面都是泡沫。
5 components 4725dcf446a342f1473a8228e42dfa48     
（机器、设备等的）构成要素，零件，成分； 成分( component的名词复数 )； [物理化学]组分； [数学]分量； （混合物的）组成部分
参考例句：
  • the components of a machine 机器部件
  • Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。
6 lighting CpszPL     
n.照明，光线的明暗，舞台灯光
参考例句：
  • The gas lamp gradually lost ground to electric lighting.煤气灯逐渐为电灯所代替。
  • The lighting in that restaurant is soft and romantic.那个餐馆照明柔和而且浪漫。
7 efficiently ZuTzXQ     
adv.高效率地，有能力地
参考例句：
  • The worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
  • Local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。
8 savings ZjbzGu     
n.存款，储蓄
参考例句：
  • I can't afford the vacation,for it would eat up my savings.我度不起假，那样会把我的积蓄用光的。
  • By this time he had used up all his savings.到这时，他的存款已全部用完。
9 replacement UVxxM     
n.取代，替换，交换；替代品，代用品
参考例句：
  • We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
  • They put all the students through the replacement examination.他们让所有的学生参加分班考试。
10 fixture hjKxo     
n.固定设备；预定日期；比赛时间；定期存款
参考例句：
  • Lighting fixture must be installed at once.必须立即安装照明设备。
  • The cordless kettle may now be a fixture in most kitchens.无绳电热水壶现在可能是多数厨房的固定设备。
11 copper HZXyU     
n.铜；铜币；铜器；adj.铜(制)的；(紫)铜色的
参考例句：
  • The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
  • Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。
12 aluminum 9xhzP     
n.(aluminium)铝
参考例句：
  • The aluminum sheets cannot be too much thicker than 0.04 inches.铝板厚度不能超过0.04英寸。
  • During the launch phase,it would ride in a protective aluminum shell.在发射阶段，它盛在一只保护的铝壳里。
13 thermal 8Guyc     
adj.热的，由热造成的；保暖的
参考例句：
  • They will build another thermal power station.他们要另外建一座热能发电站。
  • Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。
14 flexibility vjPxb     
n.柔韧性，弹性，（光的）折射性，灵活性
参考例句：
  • Her great strength lies in her flexibility.她的优势在于她灵活变通。
  • The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。
15 lighter 5pPzPR     
n.打火机，点火器；驳船；v.用驳船运送；light的比较级
参考例句：
  • The portrait was touched up so as to make it lighter.这张画经过润色，色调明朗了一些。
  • The lighter works off the car battery.引燃器利用汽车蓄电池打火。
16 dense aONzX     
a.密集的，稠密的，浓密的；密度大的
参考例句：
  • The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
  • The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。
17 expectancy tlMys     
n.期望，预期，（根据概率统计求得）预期数额
参考例句：
  • Japanese people have a very high life expectancy.日本人的平均寿命非常长。
  • The atomosphere of tense expectancy sobered everyone.这种期望的紧张气氛使每个人变得严肃起来。
18 warranty 3gwww     
n.担保书，证书，保单
参考例句：
  • This warranty is good for one year after the date of the purchase of the product.本保证书自购置此产品之日起有效期为一年。
  • As your guarantor,we have signed a warranty to the bank.作为你们的担保人，我们已经向银行开出了担保书。
19 founders 863257b2606659efe292a0bf3114782c     
n.创始人( founder的名词复数 )
参考例句：
  • He was one of the founders of the university's medical faculty. 他是该大学医学院的创建人之一。 来自辞典例句
  • The founders of our religion made this a cornerstone of morality. 我们宗教的创始人把这看作是道德的基石。 来自辞典例句
20 proximity 5RsxM     
n.接近，邻近
参考例句：
  • Marriages in proximity of blood are forbidden by the law.法律规定禁止近亲结婚。
  • Their house is in close proximity to ours.他们的房子很接近我们的。
21 integration G5Pxk     
n.一体化，联合，结合
参考例句：
  • We are working to bring about closer political integration in the EU.我们正在努力实现欧盟內部更加紧密的政治一体化。
  • This was the greatest event in the annals of European integration.这是欧洲统一史上最重大的事件。

©2005-2010英文阅读网