龙嗅觉:天线设计和水力动力学过信息在气味羽毛
M A Koehl1, J R Koseff, J P Crimaldi
1Department of Integrative Biology, University of California, Berkeley, CA 94720-3140, USA. cnidaria@socrates.berkeley.edu
概括
龙的天线通过动来捕捉乱水中的气味分子. 这种水力动力作用通过在他们的化学感知毛发中保持度模式来增强气味检测.
科学领域:
- 海洋生物学 海洋生物学
- 感官神经科学是一种神经科学.
- 流体动力学 流体动力学
背景情况:
- 嗅觉信息处理始于嗅觉分子的捕获.
- 动物使用带有化学感知毛发的天线来检测动荡环境中的气味.
- 了解水力动力学相互作用对于嗅觉接收至关重要.
研究的目的:
- 为了研究龙的嗅觉天线如何操纵气味羽毛.
- 为了揭示由天线捕获气味物的基础上的水力动力学机制.
- 为了可视化乱的气味羽毛中的时空度模式.
主要方法:
- 利用平面激光诱导的光来可视化流体流动和度模式.
- 研究了龙天线在自然闪运动中的水力动力学.
- 分析了天线运动和乱的气味羽毛之间的相互作用.
主要成果:
- 龙的天线积极改变乱的气味羽毛中的时空度模式.
- 在快速下降的过程中,携带细度度模式的水透到化学感知毛发阵列中.
- 在较慢的回流中保持度模式,增强气味检测.
结论:
- 在动荡的水生环境中,天线动是有效捕获气味的关键机制.
- 龙天线采用的水力动力学策略优化了嗅觉信号的接收.
- 这个物理过程在嗅觉信息处理中的神经过之前.
相关概念视频
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Entrainment devices use a high fluid speed to create low pressures and, thus, entrain one fluid into another. Some examples of these devices are given below:
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Bernoulli's principle determines the water's velocity along the slide.
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