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정성원,김희철,김정범 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.2
Objective : This study compared the neurocognitive functions between schizophrenic patients and normal controls by verbal fluency test, auditory verbal learning test, and Vienna computerized neuropsychological test. Method : The subjects were 19 schizophrenic patients who were hospitalized in Keimyung University Medical Center from February 2001 to July 2001, and were diagnosed as schizophrenia by the DSM-Ⅳ diagnostic criteria. They were all clinically stable and cooperative patients whose drug dosages were not changed at least for 2 weeks. Twenty normal controls were all healthy volunteers who were matched in sex and age to patients group. The cinical symptoms of schizophrenic patients were evaluated with the PASS and BPRS. Results : The neurocognivite functions of schizophrenic group were impaired in verbal fluency, auditory verbal learning test, continuous attention test, perseveration test, standard progressive matrix, reaction text, Corsi block taping test, visual pursuit test, and cognitrone. The performance of Wisconsin Card Sorting Test was not impaired in schizophrenic group. In schizophrenic group, the positive PANSS scores had no relation with any other neurocognitive test, however the negative and general PANSS scores had relation with verbal fluency test, auditory verbal learning test, standard progressive matrices, visual pursuit test, and cognitrone. Conclusions : There results suggest that the schizophrenic patients have more pervasive neurocognitive deficits and the negative symptoms are related with neurocognitive deficits.
Toward the Automatic Generation of the Entry Level CDA Documents
정성원,김승희,유수영,최진욱 대한의료정보학회 2009 Healthcare Informatics Research Vol.15 No.1
Objective: CDA (Clinical Document Architecture) is a markup standard for clinical document exchange. In order to increase the semantic interoperability of documents exchange, the clinical statements in the narrative blocks should be encoded with code values. Natural language processing (NLP) is required in order to transform the narrative blocks into the coded elements in the level 3 CDA documents. In this paper, we evaluate the accuracy of text mapping methods which are based on NLP. Methods: We analyzed about one thousand discharge summaries to know their characteristics and focused the syntactic patterns of the diagnostic sections in the discharge summaries. According to the patterns, different rules were applied for matching code values of Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT). Results: The accuracy of matching was evaluated using five-hundred discharge summaries. The precision was as follows: 86.5% for diagnosis, 61.8% for chief complaint, 62.7%, for problem list, and 64.8% for discharge medication. Conclusion: The text processing method based on the pattern analysis of a clinical statement can be effectively used for generating CDA entries
정성원,우지희,최원식 한국산업융합학회 2017 한국산업융합학회 논문집 Vol.20 No.5
In this study, Sunroot was used as material in the fermentation process. Sunroot are widely distributed in Korea, The main component is composed of inulin. Fermented vinegar stimulates digestion in the body, as well as to relieve stress is a cause of increasing the neurotransmitter-Serotonin of the body. Therefore, we conducted fermentation studies using sunroot. This research conducted seven days, and the pH and brix value analysis was done every 12 hours during fermentation process. The experimental results show that the fermentation product under blender treatment is better than cutting treatment and without cutting treatment. Initial brix 25% is the best treatment for fermentation because produce fermentation product with a good taste and aroma than other treatment.
인물 사진을 위한 조명의 디지털 카메라 적용에 관한 연구
정성원 한국사진학회 2002 AURA Vol.0 No.9
Camera portraiture is a well-developed art, useful to professionals and amateurs alike, for documenting and communicating the various aspects of human appearance, experience, and endeavor. From the outset, one of the essential elements to be understood and appropriately controlled was light. In researching portrait painting of the past, we see the artist s careful and exacting use of light, particularly on the subject' s face and clothing. Lighting techniques and control enabled the artist to create highlights and shadows, resulting in pictures that appear to have a three-dimensional perspective on a two-dimensional canvas. Light was thoughtfully applied to create a mood or feeling, whether lively or somber. And, from a more technical standpoint, the lighting often showed the artists meticulous concern for contrast and specularity. Today's photographer has the advantage of being able to observe and apply the principles established by the great painters. However, photography today is highly influenced by ever-changing technology. For instance, digital cameras and digital applications are rapidly changing photography, including portraiture. Instead of using conventional cameras and films, many photographers are turning to digital technology - cameras, computers, and high-end printers - to efficiently produce highly saleable results. These systems have unique characteristics. For instance, while a portrait photographer will use his or her lighting in the conventional way, differences between the way film and digital systems respond to and record light require special consideration. In my interviewing photographers already using digital camera systems, I found that they recommend caution in using digital camera systems with conventional portrait lighting systems. The purpose of this project is to determine the digital parameters for portraiture by comparing digital camera images with identical conventional film camera images. Conventional lighting is used consistently in both cases. The resulting photographs are analyzed in terms of contrast, resolution (sharpness), tonal range, and naturalness of appearance.