tabletsandtelevisions.Isallthisstaringbadfor us?Itmightbe,mainlybecauseaswestareatour devicesweareexposingourselvestobluelight. Bluelightisatypeofelectromagnetic(电磁 的)radiationwithaveryshortwavelengththat producesahighamountofenergy.Whileit?strue thatlightcandamageoureyesundercertaincircumstances,there?snoscientif...
Most non-ionizing radiation, such as radio and microwave energy, is considered harmful only to the extent of the amount of heat energy it transfers to whatever it hits. This is, in fact, the way that microwaves cook food. UV light is unique in that while it is non-ionizing, it does ...
Student: Optical radiation.But I thought being exposed to radiation is dangerous. Professor: Yes, and no.If you are talking about radiation, like in the element Uranium, yeah, that’s dangerous.But radiation as a general term actually refers to anything that spreads away from its source.So ...
We made the ice, we can see a bit here, a sort of growth on the edge of the window. The ice is bathed in ultra-violet light, simulating solar radiation, which breaks up the molecules.我们制作了冰，我们可以看到，在窗户的边缘生长着一种东西。冰沐浴在紫外线中，模拟太阳辐射分解分子。This ...
The different sources come with some unique hazards, depending on the wavelength range of the emitted UV radiation. View Video Only Save Timeline Video Quiz Course 22K views Wavelength, Frequency & Energy Before we can think more about UV radiation and its effects, it is important to ...
Radiation therapy (RT) is one of the principal tre Boonsirikamchai,P.,Choi,... - 《Radiographics》 被引量: 49发表: 2013年 What Neuroradiologists Need to Know About Radiation Treatment for Neural Tumors Radiation oncologists and radiologists have a unique and mutually dependent relationship. Rad...
Test for Radon.The first step in managing the risk of radon is to have your home tested. Every home is unique, and a home with dangerous radon levels can be next door to a home with virtually no radon. Any radon level higher than 4 picocuries per liter is considered by health authorit...
Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 gigahertz (GHz) to as low as 9 kilohertz (kHz). With the use of antennas and transmitters, an RF field can be used for...
Beamforming or transmit beamforming (TxBF) technology produces the strong directional radiation pattern based on the strong correlation of the spatial channel and wave interference principle, making the main lobe of the radiation pattern adaptively point to the wave direction. This techno...
声明: 本网站大部分资源来源于用户创建编辑，上传，机构合作，自有兼职答题团队，如有侵犯了你的权益，请发送邮箱到feedback@deepthink.net.cn 本网站将在三个工作日内移除相关内容,刷刷题对内容所造成的任何后果不承担法律上的任何义务或责任