N,N-Diethyl-meta-toluamide, also called diethyltoluamide or DEET (/ d iː t /, from DET, the initials of di- + ethyl + toluamide), [1] [2] is the oldest, one of the most effective, and most common active ingredients in commercial insect repellents.

2014年9月29日 · The first formant (F1) is primarily associated with vowel height (tongue height), and in CE, F1 was found to reliably distinguish /i/–// (DEET–DIT) but not the other two non-discriminated vowel contrasts, which were instead reliably differentiated only by F2 (vowel/tongue backness: /i/–/u/ [DEET–DOOT] and //–/u/ [DIT–DOOT]), and F3 ...

2025年2月8日 · From Middle Low German dôt, from Old Saxon dōd, from Proto-West Germanic *daud, from Proto-Germanic *daudaz. Compare Dutch dood, Low German dod, German tot, English dead, Danish død. doot (comparative döder, superlative döödst) Note: This declension is one of many; neither its grammar nor spelling apply to all dialects.

2023年6月26日 · U.S. Army researchers developed DEET in 1946 given the battles that soldiers fought against mosquitoes in World War II. The repellent entered the civilian realm in 1957. Today, DEET is used by more than 200 million people around the world to ward off mosquitoes, fleas, ticks, flies and chiggers.

DEET is an insect repellent that is used in products to prevent bites from insects such as mosquitoes, biting flies, fleas and small flying insects. DEET is a colorless liquid that has a faint odor and does not dissolve easily in water. DEET was developed by the U.S. Army in 1946 for protection of soldiers in insect-infested areas.

2024年9月12日 · 待乙妥 （英语： Diethyltoluamide，缩写为DEET），又称 敌避 、 敌避胺 、 避蚊胺，是一种淡黄色的液油状物体，是常见的 防蚊液 成分，使用时喷洒于皮肤或衣物，主要用于驱除 蚊子。 DEET更可防止 蜱 类叮咬，防止一些 立克次体 引发的疾病、 蜱媒脑炎 和其他以蜱为媒介的疾病，例如 莱姆病。 亦可防止 登革热 、 疟疾 、 西尼罗河病毒 、 东部马脑炎病毒 等 以蚊子为媒介的病原。 DEET原本准备是为美军在 第二次世界大战 期间参与丛林战中使用，不过 …

2021年8月22日 · DEET is the most common insect repellent in the world. Learn what it is, how it works, pros and cons, and other synthetic and plant-based alternatives.

2017年12月29日 · Our acoustic analysis showed that AusE DEET and DOOT are differentiated by the second vowel formant, while DEET and DIT can only be distinguished by their changing dynamic properties throughout the vowel trajectory.

This time, infants detected a switch to DOOT, and marginally detected a switch to DIT. Our acoustic analysis showed that AusE DEET and DOOT are differentiated by the second vowel formant, while DEET and DIT can only be distinguished by their changing dynamic properties throughout the vowel trajectory.

2021年12月14日 · DEET is a safe, broad spectrum repellent, which provides complete protection over a long period of time. Despite its low cost, more affordable alternatives are highly desirable, particularly for those in endemic areas where cost is an impediment.