Electrochemical polymerization of acrylic acid and acrylamide on carbon fiber was carried out by using cyclic voltammogram in the presence of sulfuric acid (H 2 SO 4 ) as electrolyte. Cycles, monomer mass ratio, scan rate, and H 2 SO 4 concentration had an effect on the electropolymerization, and electrochemical impedance spectroscopic behavior of modified carbon fiber was studied. Systematic experiments were conducted to determine the tensile strength of carbon fiber/epoxy resin composites before and after modification. As a result, the tensile strength of modified carbon fiber/ epoxy resin composites was improved greatly. Surface morphology of the polymer films on carbon fiber was investigated by using scanning electron microscopy. It was found that voltammograms of electrodes prepared showed irreversible oxidation-reduction of the polymer films and capacitive behaviors of coated carbon fiber were defined using Nyquist plots, Bode magnitude plot and Bode phase plot at low-frequency region.
Artificial intelligence (AI) is a field that has undergone significant changes and challenges over time. This paper reviews the historical development of AI and representative philosophical thinking, and also considers the methodology and applications of AI, and anticipates its continued advancement. It discusses two main paradigms: symbolism and connectionism, which differ in how they explain and implement intelligence through symbols or artificial neural networks. However, neither paradigm is the final answer to AI research but rather reflects the best answer at a given time. The paper also analyzes the shortcomings of both paradigms from a philosophical perspective and argues that the most fundamental philosophical issue therein is understanding the difference between biological and artificial intelligence.
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