MOTIF-Z Record - Portfolio - Selected Communications - Past Forward - All Things Creative

And now for something completely different... Jump! Joseph Campbell		The web of our life is of a mingled yarn,... ...good and ill together. William Shakespeare All's Well That Ends Well [1601-1603]

Selected Communications

Past Forward...

Research Consultant

as a Research Consultant, circa 2005,
from a National Science Foundation Research Nugget

Achieving direct tactile feedback similar to the biological sense of touch is a major challenge in robotic sophistication. Opening new areas of exploration in remote sensing systems, a team of UIUC engineers — graduate students Jonathan Engel and Jack Chen, senior research engineer Zhifang Fan, and associate professor Chang Liu — has developed a flexible and robust polymer-based tactile "skin" inspired by the biological model. Using simple, thin-metal film building blocks and a variety of physical probes, this first generation design "senses" the hardness, temperature, and thermal conductivity of materials. The tactile sensor is capable of direct contact with everyday objects and could serve as a discriminating "skin" on robotic actuators.

Enterprise Webmaster

as a Enterprise Webmaster, circa 2000,
from a Campus Online Request Form

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College Educator

as a College Educator, circa 1995,
from a Rationale for Cooperative Group Learning

Learning is a three step process—presentation, practice, and performance. The presentation is where someone shows you how to do something. The practice is where you show yourself how to do something. And most important, the performance is where you must show someone else how to do something. The need for this last and often neglected phase is based on studies of long-term learning:

students learn...95%...of what they show to someone else,
students learn...80%...of what they experience,
students learn...70%...of what they discuss,
students learn...50%...of what they see and hear,
students learn...30%...of what they see,
students learn...20%...of what they hear,
students learn...10%...of what they read.

The three phases of learning may be visualized as a triangle where the length of each side indicates the emphasis on any one phase. Balanced learning would correspond to a triangle with three equal sides. To achieve the highest success—to show, to experience, and to discuss—we will advocate...

Research Scientist

as a Research Scientist, circa 1985,
from an Article Published in the J. Amer. Chem. Soc.

Structures of fractional dimension are known. Mandelbrot4,5 has pioneered the theoretical concepts and physical applications of the relatively new field of geometry6,7 and has popularized the term fractal for a structure characterized by a fractional dimension. By definition, any structure possessing a self-similar or repeating motif that is invariant under a transformation of scale may be represented by a fractal dimension. Self-similarity is geometric in regular structures; in random or irregular objects, self-similarity is primarily statistical in nature. The average (root mean square, RMS) end-to-end length R of an unbranched polymer chain constitutes a statistically self-similar property. The fundamental relationship in fractals predicts that the number of monomer segments N of length r is related to R by the fractal dimension d

N = (R/r)1/v ≡ (R/r)d (3)

where the exponent is also equal to the inverse Flory constant v in polymer theory8. Theoretical considerations provide limits of 1 ≤ d ≤ 2 in eq 3 that correspond to a linear structure, R = rN, and a structure represented by an unrestricted random walk, i.e., Brownian motion in d ≥ 2, where R = rN1/2.9


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