Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems by Lingfei Tian, Linfang Qian, Miao Li, Jiawei Fu

“…The elevating servo system (ESS) of vehicle-mounted howitzer (VMH) is a typical closed-loop electrohydraulic position servo system, and the faults of its actuator and sensor seriously affect the safety and reliability of the system. …”
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Experimental and Numerical Simulation Study on the Antipenetration Properties of Fiber Ceramic-Reactive Powder Concrete Composite Targets by H. H. Zou, C. M. Song, M. Y. Wang, D. R. Wang, D. S. Wen

“…Antipenetration tests were performed with a special howitzer with a diameter of 125 mm. The test parameters, such as the impact velocity, failure pattern of projectiles, penetration depth, crater diameter, and failure model of targets, were obtained. …”
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Delving into the Design and Implementation of Specifications Grading Systems in Higher Education by William J. Howitz, Kate J. McKnelly, Renée D. Link

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