Background: Drilling is one of the most widely used process in orthopaedic surgical operation and the same drill bit is used a number of times in hospitals. Using the same drill bit a several times may be the cause of osteosynthesis and osteonecrosis. Methods: In the present work, the effect of repeated orthopaedic surgical twist drill bit on the tool wear, force, torque, temperature and chip m...

Deep Deterministic Policy Gradient (DDPG) algorithm is one of the most well-known reinforcement learning methods. However, this method inefficient and unstable in practical applications. On other hand, bias variance Q estimation target function are sometimes difficult to control. This paper proposes a Regularly Updated (RUD) policy gradient for these problems. theoretically proves that procedur...

Developing a Model for the Integrated Management of Water and Soil Resources in Hableh-Rud River Basin Using System Dynamics Approach

Background The Health and Aging Brain among Latino Elders Study (HABLE) project seeks to understand the biological, social environmental factors that impact brain aging diverse communities. HABLE, like many other NIH funded data-sharing projects, has important data assets for various uses, including social, behavioral data, multiple flow pathways. A common methodological issue collection in suc...

and call a set A provident if it is transitive and closed under all p-rud-rec functions with p a member of A. * If ζ is the least ordinal not in a provident set A, then ζ is indecomposable, that is, that the sum of two ordinals less than ζ is less than ζ. Conversely, if ζ is indecomposable, η > ζ and p ∈ Jζ , then the Jensen set Jη is is closed under all p-rud rec functions; in particular Jζ is...

MICROPROBE SNAKE A. Hauptner, T. Cremer, M. Deutsch, S. Dietzel, G. Dollinger, G. A. Drexler, A. A. Friedl, C. Greubel, V. Hable, R. Krücken, R. Löwe, and H. Strickfaden 1 Physik Department E12, Technische Universität München, Germany 2 Department Biologie II, Ludwig-Maximilians-Universität München, Germany 3 Strahlenbiologisches Institut, Ludwig-Maximilians-Universität München, Germany 4 Insti...

Investigation of the Effective Factors on Improvement Stakeholders Relationships in Zayandeh-Rud Basin