The body freedom flutter phenomenon is one of the aeroelastic instabilities that occurs due to the coupling of the aeroelastic bending mode of the wing with the short-period mode in the flight dynamics of the aircraft. By using the aeroservoelastic model and applying closed loop control, this phenomenon can be suppressed in the operating conditions of the aircraft and the velocity of this event can be increased. The simplest model aircraft capable of displaying this instability includes the flexible wing and the planar flight dynamics model. For this purpose, the wing structure is modeled using the Euler-Bernoulli beam and, the theory of minimum variable state is used to model unstable aerodynamics to make the conditions suitable for modeling the system in state space. In the control section, the elevator is used as the control surface and LQR theory with Kalman filter is used to body freedom flutter suppression. Finally, the effect of adding a closed loop control to increase the body freedom flutter velocity and the limitations of this work are studied.

Introduction One of the most important changes occurs in the body of a pregnant woman is postpartum milk secretion. If the baby is not fed from this milk or the milk is not drained from the mother’ s breast in any other manner, some maternal problems will be arised. There are numerous drug and non-drug interventions to suppress lactation after childbirth and relief of its symptoms in women. This review report aimed to investigate the literature involved in this field to offer a single protocol in such cases. In the search strategy, we used the keywords of suppression of lactation, Treatments for suppression of lactation, Drugs in breastfeeding, Lactation after Perinatal, Neonatal, or Infant Loss by referring to the valid scientific databases, including Sciencedirect, Pubmed, Elsevier, Cochrane, and about 26 relevant papers were received and analyzed. Conclusion Currently, the recommended methods for the cessation of lactation in women with necessary indications are not conclusive for all involved women. Identification and applying different methods to suppress lactation in mothers who have been banned to use milk for various reasons, can significantly help them to better manage suppression of lactation. Based on the relevant systematic review study, it seems that in case of low maternal milk secretion, it is better to use non-pharmacological methods to suppress lactation because of their fewer side effects; but the most effective treatments are the use of Bromocriptine and Cabergoline. But still the most common treatment for the suppression of lactation is administration of Estrasiol.

Aplastic anemia is characterized by bone marrow failure and pancytopenia. It could be due to autoimmune disorders, radiation, drugs, or chemicals. Drugs that mostly cause aplastic anemia include chloramphenicol, non-steroidal anti-inflammatory drugs, antiepileptic drugs, gold salts, and antithyroid drugs. Clinical sign and symptoms often result from pancytopenia that includes signs of anemia and bleeding. In some patients, fever and sepsis are seen that are due to neutropenia. Azathioprine is a purine antimetabolite, an immunosuppressive drug that causes myelosuppression and pancytopenia, especially in patients who have some degrees of TPMT (Thiopurine Methyltransferase) activity. We present a patient who admitted to our hospital with fever and pancytopenia and a history of recent azathioprine treatment. Because of delay in the recovery of pancytopenia, she was suspected of aplastic anemia, and bone marrow aspiration and biopsy were done for her.