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電子煙和香煙哪個危害大?

Posted by dajksdhj21 on September 18, 2024 at 10:31pm 0 Comments

長久以來,關於電子煙和香煙哪個危害更大的討論未曾停歇。在全球範圍內,吸煙已被證明是導致多種嚴重健康問題的主要原因,包括肺癌、心臟病和慢性阻塞性肺疾病。隨著人們對健康的關注增加,電子菸作為傳統香煙的替代品逐漸流行起來。







電子煙和香煙哪個危害更大仍然是一個備受關注的問題,一起來看看,希望能幫到你。



傳統香煙通過燃燒煙草來釋放尼古丁,同時產生大量有害物質,包括一氧化碳、焦油和數千種其他化學物質,其中許多是已知的致癌物。長期吸煙者面臨著嚴重的健康風險,如肺癌、心血管疾病和呼吸系統問題。香煙的危害已被大量科學研究和公共衛生數據所證實。



電子煙則通過加熱含有尼古丁的液體(通常稱為… Continue

Award Winning Color Changing Hydrogen Detection Tape

Award Winning Color Changing Hydrogen Detection Tape



In 2003 UCF’s Florida Solar Energy Center (FSEC) received a $20M grant from NASA-Glenn Research Center to lead a hydrogen research program in Florida. The program was led by Principal Investigator David Block, Ph.D. and Co-PI Ali Raissi, Ph.D. Shortly after the hydrogen research program was initiated, NASA-Kennedy Space Center identified a need for an easy-to-use, safe, effective, and non-powered solution to visually detect dangerous hydrogen leaks on and near the shuttle launch pad. Since hydrogen gas is odorless and colorless, visual detection would allow the leak source to be quickly pinpointed for repair. With the hydrogen research program underway at UCF, NASA physicist, Bob Youngquist, contacted FSEC hydrogen researcher Ali Raissi, Ph.D. for a solution.To get more news about Detectable tape, you can visit senpinghz.com official website.

Raissi conceived the idea of modifying pigments to selectively change color in the presence of hydrogen. He pulled together two teams of researchers to develop the chemochromic hydrogen detection materials. The first research team used a PdO/TiO2 class of pigments based on a formulation by Sakamoto et al. to create an irreversible color change when hydrogen was detected. This research team included FSEC chemists Nahid Mohajeri, Ph.D. and Nazim Muradov, Ph.D. as well as retired DOW CORNING chemist and expert in silicone chemistry Gary Bokerman. A detailed recipe for preparing hydrogen detection tapes was transferred to NASA chemist Janine Captain, Ph.D. and her colleagues at Kennedy.

In tandem with the PdO/TiO2 based pigments development work, Raissi’s second team also researched another class of hydrogen sensing pigments with reversible color change.

NASA Testing

Luke Roberson Ph.D., NASA research scientist, led the NASA development team that collaborated with UCF. He and team members Janine Captain, Ph.D., Martha Williams, Ph.D., and LaNetra Tate, Ph.D. tested the tape for use on the launch pad. The silicone matrix tape wasn’t deployable at the launch pad because of flammability and static issues, so his team mixed the pigments into Teflon-based tape. This version passed flammability and weather resistant tests. It was then tested on cross transfer lines, fuel cells, and other NASA sites.
Terra Tape®'s Underground Marking tape is the industry standard for protecting, identifying and locating all types of buried utilities. High performance grades in both detectable and non-detectable constructions offer the best in underground marking and protection. All Terra Tape® underground marking tapes are extrusion laminated and the tape color is 100% pigmented plastic not an ink coating as with many manufacturers. Reef Industries provide underground marking tape grades available in standard APWA color codes. Please consult the APWA table below for the available colors and applications.

Terra Tape® Marking Tape
Terra Tape® is a high quality underground marking tape that can prevent the dangers of digging into buried utility lines of all types. Avoid service interruptions, unnecessary loss of revenue and repair expenses that occur when a buried utility line is damaged. Terra Tape® detectable and non-detectable underground marking tapes are specified the world over to protect against accidental dig-ins and to alert workers of buried pipes and cables.

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