نتایج جستجو برای: micromotor
تعداد نتایج: 158 فیلتر نتایج به سال:
We address the fundamental issue of fully automated design (FAD) and construction of inexpensive robots and their controllers. Rather than seek an intelligent general purpose robot — the humanoid robot, ubiquitous in today's research as the long term goal — we are developing the information technology that can design and fabricate special-purpose mechanisms and controllers to achieve specific s...
The development of microrobots on a millimeter scale has recently received much attention. The environments in which these robots are supposed to operate are narrow and potentially complicated spaces, such as micro-factory, blood vessel, and micro-satellite. The robots must have omni-directional mobility, high power and high load capacity, within a scale in millimeters, in order to accomplish t...
at MIT in 1988, I saw the first video of the earliest rotating silicon micromotor. It was the beginning of a high-time of microelectromechanical systems (MEMS): everything we did was new [1], and the MEMS community was sure that we not only reached a new frontier (which might be true), but that overcoming this boundary would lead to solutions for the most pressing problems of human kind [2] (wh...
AIM This in vitro investigation aimed to study by means of scanning electron microscope the morphological changes in hard dental tissues after using several different methods for caries removal and cavity preparation. MATERIALS AND METHODS Twenty freshly extracted human teeth with carious lesions were used in the study. They were assigned to four groups depending on the method used for prepar...
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Introduction Endoscopic imaging technologies such as confocal laser endomicroscopy (CLE) 1 and narrowband imaging (NBI) 2 have been used to investigate vascular changes as hallmarks of early cancer in the GI tract. However, the limited frame rate and field of view make CLE imag...
Electrets are functional dielectrics capable of quasi-permanently storing electric charges at their surface and/or in bulk. The electret either real (space charges) or oriented dipoles (polarisation). Traditionally, electrets divided into space-charge (non-polar) and dipole (polar) electrets. Ferroelectrets (also called piezoelectrets) a relatively young member added to the family around end la...
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