of the wheelset axle. The flange vertex, the contact point, the wheel rim plane and the center of the axle are directly determined by the measurement of the sensors. Since the wheel rim plane is fitted by the three profiles from three sensors, the layout of the profiles is related to the measurement robustness. In the calculation of the center of the wheel, we have made an assumption that the wheelset axle is perpendicular to the wheel rim plane as its design. However, the wheelset axle is slightly curved in actual operation due to the heavy load on the axle. This deformation can affect the actual position of the wheel center on the rim plane. What is more, the geometrical error of the wheelset axle in production alsoThirteen previously exempted Alabama counties saw an 85 percent drop in food stamp participation after work requirements were put in place on Jan. 1, according to the Alabama Department of Human Resources.

The counties - Greene, Hale, Perry, Dallas, Lowndes, Wilcox, Monroe, Conecuh, Clarke, Washington, Choctaw, Sumter and Barbour - had been exempt from a change that limited able-bodied adults without dependents to three months of Supplemental Nutrition Assistance Program benefits within a three-year time frame unless they were working or participating in an approved training program.

During the economic downturn of 2011-2013, several states - including Alabama - waived the SNAP work requirements in response to high unemployment. It was reinstituted for 54 counties on Jan. 1, 2016 and for the remaining 13 on Jan. 1, 2017. As of