The working principle and key components of a chain drive residual film recovery machine were studied. A kinematic analysis the soil separation mechanism was completed by applying ADAMS software to obtain trajectory, displacement, velocity acceleration center mass plate link_1 in x- y-directions within effective shaking displacement. field test carried out. When roller contact with chain, chang...

JIMMY R. WILLIAMS Texas A&M Experiment Station 808 East Blackland Road Temple, Texas 76502, USA ABSTRACT / The Erosion Productivity Impact Calculator model (EPIC) was recently altered to include algorithms based upon concepts found in the Century model with the exception of a daily time step. We compared measured soil organic carbon (SOC) content values with simulated values to validate the new...

Solution symmetries in integer linear programs often yield long Branch-and-Bound based solution processes. We propose a method for finding elements of the permutation group of solution symmetries, and two different types of symmetry-breaking constraints to eliminate these symmetries at the modelling level. We discuss some preliminary computational results.

The paper proposes a dynamic method, Recursive Symmetry Breaking During Search (ReSBDS), for efficient partial symmetry breaking. We first demonstrate how Partial Symmetry Breaking During Search (ParSBDS) misses important pruning opportunities when given only a subset of symmetries to break. The investigation pinpoints the culprit and in turn suggests rectification. The main idea is to add extr...