In men, a testicular infection, tumor or twisting of the left testicle commonly causes pain that radiates from the testicle into the left side of the abdomen and back. When to See Your Doctor. Call your doctor right away if you develop abdominal and back pain, especially if it doesn't go away in a few days or worsens.
Autonomous Control in Production Logistics. For production systems, different autonomous control methods have been developed. All of these methods aim at enabling parts in a production system to decide about possible alternative routes through a production system.
See Optimization. If the production or manufacturing process is viewed as an input-output process, then the production planning function can be viewed as a control process with feedback (see illustration).ee Optimization. If the production or manufacturing process is viewed as an input-output process, then the production planning function can be viewed as a control process with feedback (see illustration).