Experimental investigations of the effects of cutting angle on chattering of a flexible manipulator

When a machine tool is mounted at the tip of a robotic manipulator, the manipulator becomes more flexible (the natural frequencies are lowered). Moreover, for a given flexible manipulator, its compliance will be different depending on feedback gains, configurations, and direction of interest. Here, the compliance of a manipulator is derived analytically, and its magnitude is represented as a compliance ellipsoid. Then, using a two-link flexible manipulator with an abrasive cut off saw, the experimental investigation shows that the chattering varies with the saw cutting angle due to different compliance. The main work is devoted to finding a desirable cutting angle which reduces the chattering

Computational Modelling Enables Robust Multidimensional Nanoscopy

The following sections are included: Present State of Computational Modelling in Fluorescence Nanoscopy Recent Contributions to Computational Modelling in Fluorescence Nanoscopy Outlook on Computational Modelling in Fluorescence Nanoscopy Acknowledgments Reference

Engaging Medical Culture: Suggestions for the Education of Healthcare Chaplain

In order to function in an interpretive role about the meaning of illness, chaplains need to be able to understand its culture and move into the frame of reference of the medical world

Fundamental limits of measuring single-molecule rotational mobility

Various methods exist for measuring molecular orientation, thereby providing insight into biochemical activities at nanoscale. Since fluorescence intensity and not electric field is detected, these methods are limited to measuring even-order moments of molecular orientation. However, any measurement noise, for example photon shot noise, will result in nonzero measurements of any of these even-order moments, thereby causing rotationally-free molecules to appear to be partially constrained. Here, we build a model to quantify measurement errors in rotational mobility. Our theoretical framework enables scientists to choose the optimal single-molecule orientation measurement technique for any desired measurement accuracy and photon budget

Everybody Loves My Girl

https://digitalcommons.library.umaine.edu/mmb-vp/1390/thumbnail.jp