• Journal of Pharmaceutical Investigation
• /
• 제1권1호
• /
• pp.53-57
• /
• 1971

A Diffusion analysis method is described for the determination of alcohol content in tinctures and spirits and then, the comparison test of the official alcohol number test with the diffusion analysis method has hen carried out. Throughout this experiments, a transformed Widmark apparatus is used. It is found that the diffusion analysis method using the transformed Widmark apparatus is very simple and occapy a small space. One of the most convenient fact is many sample can be analyzed at a time with this apparatus. Experimental data indicate that 95% of alcohol content obtained by the official alcohol number test is found in the diffusion analysis.

• 한국주거학회논문집
• /
• 제8권1호
• /
• pp.23-35
• /
• 1997

The purpose of this study is to analyze the original plans of the Railway official residence and process of the transfiguration of those plans based on the transition of social-culture, using 54 houses which were built from 1920 to 1945 in Taegu-Kyoungbuk province. In addition, this study was carried out by means of research on the form and pattern, and visual anthropological method by photograph and direct observation. The results of this study are as follows : 1) The original plans of Railway official residences were composed of the entrance hall, TADAMI Rooms, bathroom, toilet and HUSMA(wooden sliding doors). 2) After 1945, the room, kitchen, toilet of Japanese style had been trasfiguerated to Korean traditional style. 3) Since 1980's, those of Korean traditional style has been trasfigurated to the livingroom, dinningroom, entrance hall and etc. of western style.

• International journal of advanced smart convergence
• /
• 제4권2호
• /
• pp.170-176
• /
• 2015

The stamp is one of the crucial information of traditional historical and cultural for nations. In this paper, we purpose to detect official stamps from scanned document and recognize the Mongolian traditional, historical stamps. Therefore we performed following steps: first, we detect official stamps from scanned document based on red-color segmentation and document standard. Then we collected 234 traditional stamp images with 6 classes and 100 official stamp images from scanned document images. Also we implemented the processing algorithms for noise removing, resize and reshape etc. Finally, we proposed a new scale invariant classification algorithm based on KNN (k-nearest neighbor). In the experimental result, our proposed a method had shown proper recognition rate.

• 미생물학회지
• /
• 제36권3호
• /
• pp.242-248
• /
• 2000

1995년 먹는 물 관리법 제정 이후 공식적으로 분석이 이루어진 녹농균(Pseudomonas aeruginosa)은 국내 시판중인 먹는 샘물의 원수 및 제품 수에서 각각 2.3%와 1.2% 수준으로 검출되어 세균항목 중 대장균군 다음으로 중요한 수질 세균항목으로 나타났다. 최초 제정된 공정시험법은 asparagine-acetamide 배지를 사용하는 일본 및 미국의 방법(A-A법)을 따랐는데, 녹농균의 검출민감도가 뛰어났으나 검출특이성이 높지 않았다. 검출특이성을 강화하기 위하여 수용성 형광색소를 형성, pyocyanin 색소 발생, 카제인 가수분해 $42^{\circ}C$ 성장 등 녹농균에 특징적인 생화학적 특성을 녹농균 및 유사균 기준주 및 먹는 샘물 분리주에 실험한 결과 42$^{\circ}C$성장이 유사균을 녹농균과 가장 잘 구별시켜주는 특징이었다. 따라서 민감도가 놓은 A-A법에 $42^{\circ}C$ 성장실험을 녹농균의 여타 생화학적 동정시험 이전에 추가로 검사함으로 서 $37^{\circ}C$에서 오양성으로 판정되는 유사균의 상당수를 효과적으로 제외시킬수 있으리라 사료되었다.

• 한국측량학회지
• /
• 제36권5호
• /
• pp.403-412
• /
• 2018

Recently, GNSS (Global Navigation Satellite System)-derived orthometric height determination has been studied to improve the time and cost-effectiveness of traditional leveling surveying. However, the accuracy of this new survey method was evaluated when unknown points are located lower than control points. In this study, the accuracy of GNSS-derived orthometric height was examined using TPs (Triangulation Points) to verify the stability of surveying in mountainous areas. The GNSS survey data were obtained from Mungyeong, Unbong/Hadong, Uljin, and Jangseong. Three unknown points were surrounded by more than three UCPs (Unified Control Points) or BMs (Benchmarks) following the guideline for applying GNSS-derived orthometric height determination. A newly developed national geoid model, KNGeoid17 (Korean National Geoid 2017), has been applied for determining the orthometric height. In comparison with the official orthometric heights of the TPs, the heights of the unknown points in Mungyeong and Unbong/Hadong differ by more than 20 cm. On the other hand, TPs in Uljin and Jangseong show 15-16 cm of local bias with respect to the official products. Since the precision of official orthometric heights of TPs is known to be about 10 cm, these errors exceed the limit of the precision. Therefore, the official products should be checked to offer more reliable results to surveyors. As an alternative method of verifying accuracy, three different GNSS post-processing software were applied, and the results from each software were compared. The results showed that the differences in the whole test areas did not exceed 5 cm. Therefore, it was concluded that the precision of the GNSS-derived orthometric height was less than 5 cm, even though the unknown points were higher than the control points.

• International Journal of Computer Science & Network Security
• /
• 제22권5호
• /
• pp.225-233
• /
• 2022

Due to the large number of documents that are important to people and many of their requests from time to time to perform an essential official procedure, this requires a practical arrangement and organization for them. When necessary, many people struggle with effectively arranging official documents that enable display, which takes a lot of time and effort. Also, no mobile apps specialize in professionally preserving essential electronic records and displaying them when needed. Dataset consisting of 10,841 rows and 13 columns was analyzed using Anaconda, Python, and Mito Data Science new tool obtained from Google Play. The research was conducted using the quantitative descriptive approach. The presented solution is a model specialized in saving essential documents, categorizing according to the user's desire, and displaying them when needed. It is possible to send in an image or a pdf file. Aside from identifying file kinds like PDFs and pictures, the model also looks for and verifies specific file extensions. The file extension and its properties are checked before sharing or saving it by applying the similarity algorithm (Levenshtein). Our method effectively and efficiently facilitated the search process, saving the user time and effort. In conclusion, such an application is not available, which facilitates the process of classifying documents effectively and displaying them quickly and easily for people for printing or sending to some official procedures, and it is considered one of the applications that greatly help in preserving time, effort, and money for people.

• 한국컴퓨터정보학회:학술대회논문집
• /
• 한국컴퓨터정보학회 2019년도 제59차 동계학술대회논문집 27권1호
• /
• pp.387-388
• /
• 2019

As malicious apps vary significantly across Android malware, it is challenging to prevent that the end-users download apps from unsecured app markets. In this paper, we propose an approach to classify the malicious methods based on permissions using Long Short Term Memory (LSTM) that is used to embed the semantics among Intent and permissions. Then the malicious method that is an unsecured method will be removed and re-uploaded to official market. This approach may induce that the end-users download apps from official market in order to reduce the risk of attacks.

• 지적과 국토정보
• /
• 제48권1호
• /
• pp.153-167
• /
• 2018

현재 공시지가를 산정하기 위하여 매년 현장조사방법으로 수집되는 지형 지세자료의 정확도를 인정할 수 없다는 지적이 많지만, 이에 대한 구체적 연구는 없는 실정이다. 본 연구는 현장조사방법으로 지방자치단체가 수집한 지형 지세자료의 정확도 분석을 위하여 수치표고모델로 분석한 자료와 부합여부를 조사하였다. 분석결과, 총 1537 필지 중 324 필지가 불부합하여, 불부합 비율은 17.36%이다. 11개 연구지역 중 부불합 비율이 20%이상인 지역은 5개이고, 가장 심함 지역의 불부합비율은 38.71%로 나타났다. 대체로 고도가 높고, 경사가 불규칙하여 지형 지세가 복잡한 지역은 불부합 비율이 높은 반면, 지형 지세가 순탄한 평야지역은 불부합 비율이 낮다. 이상 분석결과는 현장조사방법으로 지형 지세를 조사하는데 한계가 있음을 시사한다. 따라서 우리나라 국토가 고도와 경사가 불규칙한 매우 복잡한 지형 지세임을 고려할 때, 공시지가제도에서 토지의 지형 지세를 정확하고 효과적으로 조사하기 위해서는 먼저 법률적 기준을 정량화하고, 기존의 현장조사 방법을 공간정보 분석방법으로 전환해야 한다.

• 한국식품영양과학회지
• /
• 제45권3호
• /
• pp.342-351
• /
• 2016

본 연구는 한국에서 식용색소로 지정되지 않은 keto-carotenoid계의 canthaxanthin에 대한 최적 분석방법을 확보하기 위해 수행되었다. HPLC-UVD를 이용한 외국의 canthaxanthin 공인분석법을 검토하여 직선성, 분리능, 민감도, 검출한계(LOD), 정랑한계(LOQ)를 도출하고, 각 실험 데이터를 비교하여 최적의 canthaxanthin 분석방법을 확보하였다. 또한 확보된 최적 분석방법에 대한 정밀도, 정확도, 회수율, 실험실 간 교차검증, 측정불확도를 산출하여 canthaxanthin 최적 분석법에 대한 타당성을 검증하였다. AOAC법, 일본 및 영국의 공인분석법을 이용하여 canthaxanthin 표준용액을 5, 10, 20, 50, 100, $300{\mu}g/mL$의 6 point로 희석한 후 얻은 검량선의 상관계수는 모두 $R^2=0.999$ 이상으로 나타나 우수한 직선성을 보였으나 분리능, 민감도, LOD, LOQ는 일본의 공인분석법이 가장 우수하였다. 일본 공인분석법의 LOD와 LOQ는 각각 0.084 mg/kg, 0.254 mg/kg으로 나타났으며, 1보다 낮은 정밀도, 100%에 가까운 정확도, $100{\pm}10%$ 사이의 회수율, 교차검증 시 세 기관의 변동계수가 5이하로 나타나 canthaxanthin 분석을 위해 가장 최적화된 방법으로 확인되었다. 또한 측정하는 중에 나타나는 불확실성을 알아보기 위하여 canthaxanthin이 함유된 가공식품을 분석하여 측정불확도를 산출한 결과 $39.5{\pm}5.29mg/kg$(95% 신뢰구간, k=2.78)으로 나타났다. 확장불확도는 측정 농도의 13.4%로 나타나 유럽연합의 기준(16% 이하)에 적합한 결과를 보였다.

• 한국환경농학회:학술대회논문집
• /
• 한국환경농학회 2011년도 30주년 정기총회 및 국제심포지엄
• /
• pp.471-471
• /
• 2011