Last week we discussed some algorithmic aspects of machine learning. We saw one very powerful family of learning algorithms, namely nonparametric methods that make very weak assumptions on that data-generating distribution, but consequently have poor generalization error/convergence rates. These methods tend to have low approximation errors, but extremely high estimation errors. Then we saw som...

The article presents the results of an experimental study bending saw blade 5LP linter machine. Therefore, a bench installation was made to conduct process under contact with ribs. At that, serial gaskets AK5M2 aluminum alloy and recommended new design St3 steel for machine were used. When modeling blades touching ribs, load force 9.8, 19.6, 34.3 49 N is suspended on maximum diameter blade. res...

By measuring the distribution of conduction velocities (DCV) in sensory fibres of the median nerve, the effects of local vibration on all faster and slower large myelinated nerve fibres were examined in 10 male chain saw operators (three operators had frequent attacks of white finger; the attacks were only occasional in four and negative in three). All parameters of DCV, and conventional sensor...

Chain saws were first used in Kyusyu in 1956 for cutting down trees and sawing timber in the national forests. In 1961, some workers complained of symptoms due to the vibrations, but countermeasures were not taken until later. The working system and payment system in those times were different from the systems, today. The magnitudes of the chain saw vibrations were very large and the chain saws...

For the purpose of exploring deformation characteristics of jointed rock masses, influence of joint inclination and confining pressure on the mechanical behavior of discontinuous rock a series of compression tests were conducted under satisfactory testing conditions on three types of sandstone from various locations. Three groups of jointed specimens were used in this research, including specim...

We model protein folding as a physical stochastic process as follows. The unfolded protein chain is treated as a random coil described by SAW (self-avoiding walk). Folding is induced by hydrophobic forces and other interactions, such as hydrogen bonding, which can be taken into account by imposing conditions on SAW. The resulting model is termed CSAW (conditioned self-avoiding walk. Conceptuall...