资讯
On a clear night, the moon you gaze upon looks the same as it looked for the first humans that walked Earth—the same ...
We examined the effects of halogens on the production of salinosporamide A (NPI-0052) by the obligate marine actinomycete Salinispora tropica NPS465, specifically the production of analogs ...
The halogens and phthalates we have discussed here represent an ongoing trend where regulations become more restrictive. REACH Candidate list substances (SVHC) ...
Specifically, HL R7 halogens — high-output linear bulbs usually used for security, floor, and flood-lighting purposes — and T5 fluorescent tubes, commonly used in schools and offices, ...
New research shows that using halogens -- a class of elements that include fluoride, bromine, chlorine and iodine -- in a dye-sensitized solar cell can increase conversion efficiency by 25 per cent.
Solar Lighting Saves Halogens By Chris Davies Updated: Feb. 13, 2019 7:53 am EST Having suffered a minor coronary after getting last month's electricity bill, I'm now training myself to turn off ...
Keywords halogens, chlorine, bromine, iodine, preparation, chemical properties, reactions, oxidation, tests, reactivity Email us at footage@avgeeks.com if you have questions about the footage and ...
LEDs (light-emitting diodes)—the main technical change—produce bright white illumination in headlamps that can better reveal the road ahead and any obstacles in and around it. The LED lamps, supplied ...
Next up on our tour of the halogens is chlorine, a reactive element with so many industrial uses it’s hard to name them all. Apart from its familiar uses in disinfection and public sanitation, ...
The distribution of halogens like chlorine reveals much about the formation of the lunar crust. An international research team has now shown in laboratory experiments that rocks with surprisingly high ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果