High-resolution measurements of swordfish skin surface roughness.
High-resolution measurements of swordfish skin surface roughness.
复制标题
旗鱼皮肤表面粗糙度的高分辨率测量。
DOI：
10.1088/1748-3190/ad0f32
复制
发表时间：
2023
影响因子：
3.4
通讯作者：
Stewart M
中科院分区：
文献类型：
--
作者：
Stewart M
箭鱼皮肤粗糙的三维形态仍然知之甚少。随后，其重要性的整体生理和水动力性能的旗鱼尚未确定。这至少部分归因于对这些复杂的生物表面进行所需测量的固有困难。为了解决这个问题，在这里两套新的高分辨率测量旗鱼皮肤，获得使用模块化光学相干断层扫描系统和基于凝胶的立体轮廓仪，报告和比较。这两种技术显示，以微米级的分辨率提供三维形态数据。结果表明，皮肤表面填充与多刺的粗糙度元素，通常在流向方向上伸长，在多达六个组，并与先前报道的信息的基础上粗糙的测量良好的协议。此外，我们的数据还提供了新的信息，这些粗糙度的空间分布和变化的功能。两种方法，一个连续的和另一个离散的，是用来获得各种形貌的度量，表征皮肤的表面纹理。这里提供的信息可以用来开发统计上有代表性的合成模型的旗鱼皮肤粗糙度。
The three-dimensional morphology of swordfish skin roughness remains poorly understood. Subsequently, its importance to the overall physiology and hydrodynamic performance of the swordfish is yet to be determined. This is at least partly attributable to the inherent difficulty in making the required measurements of these complex biological surfaces. To address this, here two sets of novel high-resolution measurements of swordfish skin, obtained using a modular optical coherence tomography system and a gel-based stereo-profilometer, are reported and compared. Both techniques are shown to provide three-dimensional morphological data at micron-scale resolution. The results indicate that the skin surface is populated with spiny roughness elements, typically elongated in the streamwise direction, in groups of up to six, and in good agreement with previously reported information based on coarser measurements. In addition, our data also provide new information on the spatial distribution and variability of these roughness features. Two approaches, one continuous and another discrete, are used to derive various topographical metrics that characterize the surface texture of the skin. The information provided here can be used to develop statistically representative synthetic models of swordfish skin roughness.