首页
登录
职称英语
[originaltext] Researchers at Stanford University have developed a new mater
[originaltext] Researchers at Stanford University have developed a new mater
游客
2024-03-12
31
管理
问题
Researchers at Stanford University have developed a new material that can move heat out of buildings and into space. The researchers say the material can cool buildings even on hot days. The cooling material is a very thin sheet with many layers that could be placed on a roof like solar panels. However, instead of turning sunlight into energy as solar panels do, the material turns heat into infrared radiation.
Shanhui Fan is an electrical engineering professor at Stanford University. He says that the panels have a layer of material that is like sand. He says that the panels act like a mirror. They take heat out of buildings and reflect the light from the sun. He says both the heat and sunlight are sent 100 kilometers into outer space. ’’It’s a structure that cools itself without electricity input, even under the sun. So, what it does is basically radiate heat to outer space and also reflect the sunlight so it doesn’t get heated up by the sun. And the net result is you get something that if you put on the roof will have a temperature below ambient air temperature by a significant amount. ’’
The panels are cool to touch, even in the sun. Researchers say they can reduce the indoor temperature to nearly 5 degrees Celsius below the temperature outside. Mr. Fan says it is like having a window into space. He says the heat is sent directly into space without warming the air. He says buildings in developing countries that do not have electricity or air conditioning could use the panels. ’’In areas where one is off-grid, there is a significant potential benefit for storing medicine or even food. In many of these situations, being able to reduce the temperature is important. And this would provide a way to do it. ’’
The Stanford researchers described their technology in the science publication Nature. They say the main problem is creating actual cooling systems using the high-tech panels. They say it may be possible to develop a cooling spray that could be used on existing solid structures. The researchers believe the cooling spray technology could be developed in the next three to five years. They say as much as 15 percent of the energy used in the United States is spent providing power to air conditioning systems.
23. What do the researchers say about the new material?
24. What is the potential benefit of the panel in areas without electricity or air conditioning?
25. When could the cooling spray technology be developed?
选项
A、It can absorb heat from space like solar panels.
B、It can cool buildings.
C、It is a very thick sheet with many layers.
D、It cannot be placed on a roof.
答案
B
解析
选项都是以代词 It 开头的,是关于它怎么样的。题目问的是研究人员讲了这种新材料的什么。文中提到这种新材料能够将建筑物的热量转移到空间里,它能在炎热的天气中冷却建筑物。这种冷却材料是一种由许多层构成的薄薄的板子,可以像太阳能板子那样放在屋顶。由此可知,答案为B)。
转载请注明原文地址:https://tihaiku.com/zcyy/3528365.html
相关试题推荐
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
[originaltext]TodayisarathersaddayforoneoftheLondon’soldestfrie
[originaltext]TodayisarathersaddayforoneoftheLondon’soldestfrie
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
[originaltext]WhenJohnsonworkedinahigh-traveljobmorethanadecadea
[originaltext]TodayisarathersaddayforoneoftheLondon’soldestfrie
[originaltext]TodayisarathersaddayforoneoftheLondon’soldestfrie
[originaltext]TodayisarathersaddayforoneoftheLondon’soldestfrie
随机试题
Astheeditorofasciencemagazine--afannyone--Iwascontinuallybesiege
Patty:Hello,couldIspeaktoMrs.Lee,please?Betty:ThisisBettyLee.Patty
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasicstr
ICU的收治对象一般不包括()A.休克病人 B.大手术病人 C.急性肾衰竭病
恶寒战栗与高热交替发作,发有定时,此为A、疟疾 B、热入血室 C、阳明病
A.12~2月 B.3~4月 C.5~7月 D.7~9月 E.10~12
“并病”是指A.两经或三经证候同时出现 B.一经证候已罢,继而出现另一经证候
下面属于周期理论中基本原理的有()。A:叠加原理 B:谐波原理 C:
案例一(21): 心理咨询师:前些时候,我们中学同学、大学同学的聚会偏巧赶在一
输尿管有结石或被肿瘤压迫时可能出现A.肾小球囊内压升高 B.肾小球囊内压降低
最新回复
(
0
)