http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
허원,장철수 대한피부과학회 1970 大韓皮膚科學會誌 Vol.8 No.2
A case of Peutz-Jeghers syndrome was experienced with melanin pigmentation in the oral cavity and lips associated small intestine polyposis. Diagnosis of Peutz-Jeghers syndrome was established by clinical characteristics of skin and X-ray studies of gastrointestinal tracts.
An Artificial Neural Network for Biomass Estimation from Automatic pH Control Signal
허원,Yoon-Keun Chung 한국생물공학회 2006 Biotechnology and Bioprocess Engineering Vol.11 No.4
This study developed an artificial neural network (ANN) to estimate the growth of microorganisms during a fermentation process. The ANN relies solely on the cumulative consumption of alkali and the buffer capacity, which were measured on-line from the on/off control signal and pH values through automatic pH control. The two input variables were monitored on-line from a series of different batch cultivations and used to train the ANN to estimate biomass. The ANN was refined by optimizing the network structure and by adopting various algorithms for its training. The software estimator successfully generated growth profiles that showed good agreement with the measured biomass of separate batch cultures carried out between at 25 and 35°C.