• The Journal of Internal Korean Medicine
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• v.39 no.5
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• pp.1061-1067
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• 2018

A patient had central fever following pontine hemorrhage. Central hyperthermia caused by stroke is a rare case, and it is difficult to control. There are few case reports about central hyperthermia in Korean medical treatment (KMT). The patient suffered central hyperthermia accompanied by tachycardia, dyspnea, and irritability. However, there was no evidence of infection. Thus, hypnotics, sedatives, and a minor tranquilizer (Lorazepam and Midazolam) was prescribed. Despite a temperature peak of $39.9^{\circ}C$, most of the symptoms were alleviated. The patient's average body temperature was about $37^{\circ}C$, which is higher than most people at $36.5^{\circ}C$. His symptoms were diagnosed as ascendant hyperactivity of liver Yang (肝陽上亢), and the patient was prescribed Shihogayonggolmoryo-tang. During the 44 days of KMT, there was no change in his average body temperature and no central hyperthermia over $39^{\circ}C$. This case report demonstrates the possibility of controlling central hyperthermia caused by pontine hemorrhage using KMT.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10a
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• pp.766-771
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• 1993

A mathematical model is developed to represent the batch reactor for free radical polymerization of PMMA The model is validated by comparing the simulation result with the experimental data. A computational scheme is proposed to determine the trajectory of the reactor temperature that will produce polymer product having the desired molecular weight distribution. For this instantaneous number average chain length and polydispersity are introduced to calculate the reactor temperature. The former is assumed to be a second order polynomial of the sum of the living and dead polymer concentrations. Various reactor temperature, trajectories are observed depending on the reactor conditions and prescribed molecular weight distributions. Fuzzy and PID control algorithms are applied to trace the reactor temperature trajectory. While the PID control gives rise to an overshoot when the trajectory changes its direction, the fuzzy controller yields a more satisfactory performance because it secures information on the trajectory pattern.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.1
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• pp.80-87
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• 2016

In this work, we conduct a thermal pointing error analysis of the observation satellites considering seasonal and daily temperature variation with interpolated temperature based on prescribed average temperature (PAT) method. Maximum 200 degree temperature excursion is applied to the observation satellites during on-orbit operation, which cause the line of sight (LOS) to deviate from the designated pointing direction due to thermo-elastic deformation. To predict and adjust such deviation, the thermo-elastic deformation analysis with a fine structural finite element model is accomplished with interpolated thermal maps calculated from the results of on-station thermal analysis with a coarse thermal model. After verifying the interpolated temperatures by PAT with two benchmark problems, we evaluate the thermal pointing error.