선박 자재 관리시스템 구현에 관한 연구

Ya-Lin Wu,안주혁(Joo-Hyuk Ahn),권순각(Soon-Kak Kwon),이중화(Jung-Hwa Lee),강승훈(Seung-Hoon Kang) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2

본 논문은 선박에서 사용되는 다양한 자재정보를 관리하는 정보시스템에서 유전자 알고리즘을 바탕으로 효율적으로 선박 자재를 배치하기 위한 방법을 구현한다. 이를 통하여 원자재 낭비를 최소화할 수 있으며, 많은 양의 요소를 자동으로 추출함으로써 생산시간을 절감할 수 있다.

A Method for Multiple Identification of Four β2-Agonists in Goat Muscle and Beef Muscle Meats Using LC-MS/MS Based on Deproteinization by Adjusting pH and SPE for Sample Cleanup

Lin Xiong,Ya-Qin Gao,Wei-Hong Li,Tian-Feng Guo,Xiao-Lin Yang 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.5

An LC-MS/MS method was established for simultaneous identification of levels of bilpaterol, cimbuterol, clenproperol, and bambuterol in goat and beef muscle. Meat samples were subjected to extraction using an aqueous acidic solution and cleansed using MCX solid phase extraction. β2-Agonists residues were extracted using an aqueous acidic solution. Proteins in extraction liquids was removed based on adjusting pH using perchloric acid and a sodium hydroxide solution, followed by SPE for clean-up. Linearity values of the method based on R2 values were 0.9976-0.9997 with 70.1-108.8% recovery and relative standard deviation values of 3.5-13.3%. Low limits of detection (LOD) and quantitation (LOQ) of 0.01-0.02 and 0.02-0.08 μg/kg, respectively, were achieved for spiked goat and spiked beef muscle. The method was sensitive and specific and is an improvement over other currently available technologies.

Bitstream Conversion Method by Considering Concerned Region for Video Coded Stream

Ya-lin Wu,Soon-kak Kwon 한국정보통신학회 2009 2016 INTERNATIONAL CONFERENCE Vol.2 No.1

H.264 부호화를 위한 화면내 예측 간소화 방법

Ya-Lin Wu,권순각(Soon-kak Kwon) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.1

H.264의 동영상 부호화에서는 현재 화면의 이웃한 화소들을 이용하는 화면내 예측부호화 기법을 사용하고 있다. 기존 MPEG 1, 2 화면내 부호화 가법에 비해 화질의 개선은 달성하였으나 영상의 부호화 과정에서 영상의 종류와 관계없이 다수 개(9개)의 예측부호화 모드가 사용됨으로써 화면내 부호화 과정에서 연산량이 증가된다. 본 논문에서는 예측모드 사용의 빈도수에 따라 사용빈도가 적은 예측모드가 생략하고 화면내 예측부호화 함으로써 예측모드를 간소화시킨다.

Minimal Information Loss for Privacy-Preserved eHealth Applications

Ya-Ling Chen,Bo-Chao Cheng,Hsueh-lin Chen,Chia-I Lin,Guo-Tan Liao,Bo-Yu Hou,Shih-Chun Hsu 보안공학연구지원센터 2012 International Journal of Security and Its Applicat Vol.6 No.2

Evaluating the Effectiveness of Technology-Assisted Simulation in Nursing Education

Ya-Lin Fu 한국간호과학회 2023 한국간호과학회 학술대회 Vol.2023 No.11

The effect of grief counseling base on Swanson Caring Model for early adult students after bereavement

Ya-Ting, Lin 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10

Abstract: Accident injury is a common life crisis for men and women over 20 years old in early adulthood. The purpose of this study was to explore the effect of grief counseling base on Swanson Caring Model for early adult students after the death of classmate who had been together for five years. For 43 students, using the grief counseling strategy, after two months of counseling, 86% of the students felt that the degree of grief counseling had improved by using the grief counseling questionnaire. Method(s): Based on Swanson"s five steps of understanding, being with, doing for, empowering, and maintaining belief, this study develops grief counseling strategies for junior high school students in early adulthood, including observation, listening, learning, and caring. Secondly, the teacher should accompany and share the experience and feelings of getting along with the dead students. Thirdly, the teacher should endow the students with the ability to produce the video of the dead students" reminiscence, share the responsibility of helping the dead students with the farewell ceremony and provide the company of the parents. Finally, the teacher should continue to trust the dead students in the process of caring, Early adult students who wholeheartedly support their bereaved friends. To provide care and care for the early adult students who lost their friends for one month from February to march in 110, and to evaluate the effect of grief counseling with self-administered grief counseling evaluation questionnaire in April, and to understand the students" mood in the latest week with mood thermometer. Result(s): The questionnaire of grief counseling evaluation was recovered to 86%, and the strategies of counseling were analyzed. The preparation of commemorative video was made by group consultation, individual care of tutors and farewell video production of the deceased students and blessing to angels. The improvement of the measures to the grief of early adult students was 85-90%. After one month after the end of the farewell ceremony, there were still 5-10% of the students in the week of April 7, 110. At the time point of two months after the bereavement of friends, there were still slight difficulties in sleeping, restlessness or depression. Conclusion(s): Based on the Swanson Caring Model, this study developed a grief counseling strategy suitable for early adult students after their bereavement, and analyzed its effectiveness. With the passage of time and the implementation of counseling strategies, the degree of grief of early adult students has improved, but a small number of them still feel slightly negative emotions and distress due to the bereavement of their friends. This study aims to provide a reference for class tutors to help students with special events through the application of Swanson Caring Model.

An Insect Counting and Recognition Method for Greenhouse Insect Pests on Sticky Paper using Convolutional Neural Network

( Lin-ya Chiu ),( Ya-fang Wu ),( Ta-te Lin ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1

Greenhouses are built to promote crop growth, but the same environment also allows pests to reproduce and affect crops. Placing sticky papers in the greenhouse allows monitoring of the number of insect pests in order to predict the breakout of insects and to take appropriate action. Currently, the insect pests on sticky papers are counted and identified by manual inspection which is very time consuming and laborious. In this study, an automatic counting and recognition system for whiteflies and thrips using a convolutional neural network (CNN) approach was developed. The system makes use of a scanner to scan the images of sticky papers with insects and to recognize the objects as whiteflies or thrips. A graphical user interface (GUI) is provided; it was designed using Qt with an OpenCV image processing library. To apply CNN for object detection and recognition, we used the YOLO (You Only Look Once) real-time object detection tool. The sticky papers were collected from several greenhouses and preserved by using cellophane sheets as cover. They were then scanned to obtain high resolution images. Insect image samples were labeled from the scanned sticky paper images to train the CNN object detector model. The object detector model was further optimized in terms of iteration time, detection threshold level, and sample image size. The optimized average recognition accuracies were 86.30% and 90.45% for whitefly and thrip, respectively. This work can be used for automated insect sticky paper checking which is necessary for quarantine purposes.

양자화 복원 레벨 개수 증대로 발생되는 부가정보 감소방법

Ya-Lin Wu,권순각(Soon-Kak Kwon),권오준(Oh-Jun Kwon) 한국멀티미디어학회 2010 멀티미디어학회논문지 Vol.13 No.8

스칼라 양자화기는 구현이 간단하기 때문에 각종 영상부호화기법에서 많이 사용되고 있다. 스칼라 양자화기는 큰 양자화 계단크기를 사용하여 데이터양을 많이 줄일 수 있으나, 반대로 복원된 영상화질이 많이 나빠지는 단점이 있다. 본 논문에서는 양자화 계단크기를 그대로 유지하면서 양자화 복원 레벨 개수를 증대시킴으로 인해 부호화 성능이 개선될 수 있는 방법을 제안한다. 동시에 양자화 복원 레벨 개수가 증대됨에 따라 복원 레벨 영역에 해당되는 심볼 정보를 추가적으로 전송해 주어야 하는 문제점이 발생하며, 이를 해결하기 위하여 부가 심볼 정보를 감소시키는 방법도 제안한다. H.264 동영상 부호화에서 화면내 부호화 화면에는 4X4(수평방향 4화소, 수직방향 4화소) 블록단위로 복원 영역의 심볼 정보에 허프만 부호화를 적용하고, 화면간 부호화 화면에는 매크로블록내의 8X8블록과 4X4블록에 대해 복원 영역의 심볼 정보를 허프만 부호화한다. 이를 통하여 양자화 복원 레벨 개수 증대로 발생되는 부가정보를 줄임으로써 같은 부호화율에서 부호화성능이 개선됨을 보인다. Because it is easy to implement the scalar quantizer, it is used in various video coding systems. Although the scalar quantizer with a large quantization stepsize can reduce the amount of data, it has disadvantage that the reconstructed picture quality is poor. In this paper, we propose an efficient method which improves the coding performance by maintaining original quantization stepsize and increasing the number of quantization reconstruction levels. Simultaneously, for the purpose of solving the problem of transmitting the added symbol informations which is used to indicate the region of quantizer reconstruction level as the number of quantizer reconstruction level is increased, we also suggest the method to reduce the added informations. Therefore, for the intra-coded picture of H.264 video coding system, we generate the huffman codes for the symbol informations of quantization reconstruction regions by 4X4(horizontal 4 pixels, vertical pixels) block unit. Furthermore, for the inter-coded picture, we also generate the huffman codes for the symbol informations of quantization reconstruction regions by 8X8 blocks and 4X4 blocks within a macroblock. Adopting this method of reducing the added information by increasing the number of quantization reconstruction region, It is shown that the coding performance can be improved at the same bitrate.

Modified Procedures for ALPPS Based on a Risk-Reduced Strategy: Paralleled Clinical Evaluation at Multiple Institutions

Ya-Lin Kong,Ying Xing,Jie Li,Cheng-Li Liu,Xiao-Jun He,Cheng Wang,Jiang-Min Chen,Ling-Hong Kong,Xu Han,Hong-Yi Zhang 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.10

Purpose: We compared the clinical outcomes of modified procedures for associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) based on a risk-reduced strategy with those of classic ALPPS procedures in treating large liver carcinoma. Materials and Methods: Short-term outcomes, increases in future liver remnant (FLR) and functional FLR (FFLR), and overall survival (OS) were compared between 45 consecutive patients treated with modified ALPPS procedures and 34 patients treated with classic ALPPS procedures. Results: Clinical outcomes after the 1st-stage operation markedly improved with the modified procedures. Although the proportions of liver cirrhosis and hepatocellular carcinoma were higher in the modified group, the mortality and incidence of severe complications did not increase. FLR and FFLR hypertrophy at 1 week after the 1st-stage operation were similar in both groups; however, kinetic growth rates in the modified group were lower. OS rates were similar. Conclusion: Modified ALPPS procedures could be safely applied to provide long-term survival for patients with liver cirrhosis without sufficient FLR.