止汗劑應前一晚浴後乾爽塗抹
The horn antenna has a distinctive design that is enlarged towards the end. Horn antennas typically feature a directional radiation pattern with a high antenna gain of 10-20 dBi, some antennas have a higher gain such as the standard horn antenna up to 25 dBi. Horn antennas feature a low VSWR and a wide impedance bandwidth.
Double Ridged Horn Antennas are very popular from 200 MHz frequency to higher frequencies up to 40GHz. We have recently extended the usage frequency of this antenna up to 60 GHz.
This antenna's operating frequency has recently been increased to 60 GHz. The research process for the product line is still ongoing but is planned to be completed this year. To receive the most recent price and technical information on the new product, please contact us for more information.
Double Ridged Horn Antennas are suitable for both transmitting and receiving purposes, with applications:
- - Antenna measurement
- - Communication systems
- - Satellite tracking systems
- - Radar Detection System
- - Surveillance System
- - Electromagnetic Compatibility Testing (EMC test)
Recommended Accessories
- - Antenna Tripod: easy and fast-changing position. 100% stable after installing.
- - SMA Cable: High-quality special SMA cable
Learn More
炎炎夏日讓人大汗淋漓好難受，市售止汗劑、體香劑五花八門，如何正確使用？醫師提醒，止汗劑不建議大範圍使用，且不是立即見效；另外也不建議兒童、腎功能異常者使用止汗劑，民眾如使用後出現紅腫癢，甚至刺痛，務必停止使用並就醫治療。
皮膚科醫師邱品齊指出，止汗劑和體香劑兩者定位有些不同。止汗劑成分以鋁鹽為主，以止汗功能為主，減少體味功能為輔。體香劑目的剛好相反，以減低體味為主，止汗則是附屬功能，常見成分是香料、植萃、收斂劑（如明礬）與粉體（如滑石粉）。
市售止汗劑產品種類多，常見的有滾珠劑、噴霧劑型、固狀劑、乳霜劑及粉末狀，都是食藥署規範的化粧品。皮膚科醫師趙昭明說明，止汗劑的原理是透過水合作用讓小汗腺阻塞，因此建議前一天晚上洗完澡、擦乾皮膚後塗抹在腋下，經過一整晚，第二天白天就有止汗效果；如果身上潮溼或已經流汗才用止汗劑，恐無法發揮效果。
食藥署目前核准4種成分的止汗劑，包括氯化羥鋁、鋁鋯複合鹽類、氯化鋁，以及倍半氯化羥鋁及其衍生物，針對不同成分皆有規範濃度。趙昭明提醒，濃度愈高的產品愈常見皮膚過敏情形，如果出現紅、腫、癢、刺激或刺痛，都應停止使用並就醫治療。
邱品齊指出，在人類歷史上，利用鋁鹽來抑制出汗已經超過100年以上，其中氯化羥鋁對皮膚刺激性較低，對於衣物纖維破壞性也較小，是目前最常用的制汗成分之一。通常不建議大範圍使用止汗劑，也不建議兒童、腎功能異常者使用，至於有些人擔心止汗劑會致癌，2位醫師都表示「目前尚無定論」。
本文引用自: https://www.chinatimes.com/realtimenews/20240811000414-260418
Fei Teng Wireless Technology Co. Ltd
Taiwan Head Office & Manufacturer:
No.369, Sec. Litoushan, Wenshan Rd., Xinpu Township, Hsinchu County 305, Taiwan (R.O.C.) MAP
Tel: 886-3-5882899
Fax: 886-3-5882879
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