• Proceedings of the Korean Information Science Society Conference
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• 2010.06b
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• pp.179-183
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• 2010

여러 사람이 서로 다른 단어를 발성할 때, 기존의 방법으로는 이 단어들에 대한 음성인식이 어려웠다. 그러나, 화상회의 혹은 로봇 등 마이크로폰을 여러 명이 공통으로 사용하는 환경이 많아지면서 다방향 동시 음성 인식에 대한 요구가 늘어났다. 본 논문은 이를 위해 다방향으로 빔포밍을 적용시켜 동시에 음성인식을 수행하였고, 실시간으로 이 과정들이 수행하도록 하였다. 이 방법은 빔포밍 된 방향에서 올바른 음성인식 단어가 들어오지 않을 때는 이를 잡음으로 간주하도록 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.1100-1103
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• 2014

본 논문에서는 웨어러블 장치에서 펜 형태 또는 손가락 부착 형태의 입력 인터페이스로 사용할 수 있는 3D 온라인 필기인식 시스템을 제안한다. 3 축 가속도 센서와 자이로 센서를 장착한 입력 인터페이스를 사용하여 사용자는 손의 움직임을 통해 웨어러블 기기 또는 스마트 기기에 문자를 입력할 수 있다. 본 연구에서 제안하는 3D 필기인식 시스템은 필기 경로를 복원하여 획을 추출하고, 3 차원 공간의 필기문자에서 나타나는 기울임이나 왜곡, 겹쳐 쓰기를 고려한 특징점 추출 과정을 거친다. 추출한 특징점을 2 단계 결정 트리의 입력으로 사용하여 사용자가 공간상에서 필기한 알파벳을 인식한다. 10 명의 사용자에게 3 회의 필기 데이터를 입력 받아 총 780 개의 문자를 인식한 결과, 87.69%의 인식률을 얻을 수 있었다.

• Proceedings of the Korean Society for Information Management Conference
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• 2014.08a
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• pp.49-58
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• 2014

초등학교 5학년 학생들을 대상으로 독서부진요인을 알아보기 위한 측정도구를 개발하는데 목적이 있다. 연구방법으로는 질적 양적 연구를 모두 실행하는 혼합연구방법을 선택하였으며, 연구 대상자는 5학년 학생 1,320명으로, 1단계 질적 연구에서는 포커스그룹 인터뷰와 문헌연구를 수행하였다. 2단계 양적 연구에서는 질적 연구에서 도출된 내용을 근거로 예비문항을 개발하여 구조화된 질문지를 제작하였다. 3단계 양적 연구에서는 측정도구의 신뢰성과 타당성을 확보하기 위하여 소수의 학생을 대상으로 2회의 예비조사를 실시하였다. 결과로는 4개 평가영역, 12개 평가항목, 44개 평가내용으로 구성하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.217-218
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• 2022

본 논문에서는 코로나19 팬더믹(pandemic)으로 최근 3년가 비대면 강의가 대부분 이루어졌고, 자연스럽게 비대면 교수법 또한 여러 가지 형태로 시도되어졌다. 게더타운(Gather Town)이라는 온라인 화상회의 공간을 2D게임화 시켜서 세계적인 인기에 힘입어 본교 학생 500명 가까이 활용해 보았고, 이후 국내에서 3D기반의 매타버스 플랫폼 디토랜드(DITO LAND)를 개발하여 본교 학생 300여명의 학생들을 대상으로 실시하여 2D, 3D 기반의 장단점을 파악하게 되었다. 이를 바탕으로 추후 어떠한 방향으로 메타버스 콘텐츠를 활용한 교수법이 더 효과가 있을 것인지 예측하고, 메타버스 콘텐츠 개발자들에게 조금이라도 도움을 주고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.286-289
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• 2022

농어촌지역의 인구감소로 인한 인력난 해소를 위하여 국가적으로 농·어가당 외국인 고영허용 인원을 확대하고 농가의 경우 계절 근로제도 대상 적용 작물 제한을 없애는 등 인력확보를 위해 노력하고 있다. 외국인 근로자와 국제결혼 증가로 인하여 국내 체류 외국인 수는 지속적으로 증가추세를 보이고 있으며, 코로나 19 이전 2019년 12월 말에 체류 외국인이 252만 명으로 대한민국 전체 인구의 4.9%에 해당하며, 통상 학계에서는 외국인 비율이 5%를 넘으면 다문화사회로 분류한다. 지속적인 외국인 근로자 및 다문화 가구의 증가에 따라 지역사회에서 갈등이 발생하고 있으며, 다문화사회로 분류된 상황에서 외국인 근로자 및 다문화 가구를 지역사회의 일원으로 인식하고 갈등을 적극적으로 해결할 필요가 있다. 이에 본 연구에서는 남해군 미조권역의 사례를 바탕으로 외국인 근로자 및 다문화 가구와 원주민과의 갈등관리를 위한 시설물 및 프로그램 계획, 현안갈등과 잠재적갈등 관리 방안을 제안하여 어촌지역 다문화사회의 발전을 도모할 수 있는 실질적인 연구 수행의 의의가 있다.

• 한국벤처창업학회:학술대회논문집
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• 2023.04a
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• pp.79-82
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• 2023

최근 의학의 발달로 인해 기대수명이 길어지면서 중년기의 중요성은 현대에 와서 더욱 높아지고 있다. 현대사회의 중년은 이전보다 다양한 형태의 모습으로 살아가고 있고 이에 따른 많은 어려움을 겪으며 살아가고 있다. 특히 중년기 여성은 폐경기와 갱년기를 거치며 신체적·심리적 변화를 겪게 되고 자녀의 독립과 부모의 사망 등 사회적 변화를 경험하게 된다. 본 연구의 목적은 중년기 여성의 심리적 안녕감을 위한 상담, 치료의 기초자료 제공 및 프로그램 개발에 필요한 사전연구로서 중년기 성인의 마음챙김과 삶의 의미가 심리적 안녕감에 어떠한 영향을 미치는지 분석하려 한다. 본 연구결과를 토대로 중년기 여성의 심리적 안녕감을 높이고, 중년기의 어려움을 건강하게 극복하기 위한 해결방안을 모색하는 데 기여하고자 한다. 본 연구의 대상은 서울, 경기를 포함하여 전국에 거주하는 만 40세~64세의 중년기 여성이다. 이를 위해 중년기 여성 700명을 대상으로 설문조사를 실시하고, SPSS 28.0을 활용하여 자료를 분석하려 한다.

• Tuberculosis and Respiratory Diseases
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• v.44 no.5
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• pp.1011-1018
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• 1997

Background : To evaluate how efficaciously and safely we can make transthoracic lung biopsy with an 18-gauge automated biopsy device. Methods : We performed 130 transthoracic needle biopsies including 16 repeat biopsies in 114 patients with a pulmonary mass using an l8-gauge biopsy device (ASAP 18, Microvasive-. Eighty-three biopsies were performed by an experienced radiologist and 47 by several less experienced radiologists. All biopsies were guided by biplane fluoroscopy. Results : We successfully obtained sufficient tissue(>2-mm in the length) in 128(985) of 130 biopsies. Biopsy provided the specific diagnosis in 97 (85%) of 114 patients including 78 (88%) of 89 patients with a malignant tumor and 19 (90%) of 21 patients with a benign condition. The diagnosis could not be made in the remaining four patients. Of interest to note was the superb capability (74/74) of biopsy to make a distinction between small cell carcinoma and non-small cell carcinoma. There was no significant difference in the diagnostic yields between the experienced and less experienced radiologists. Of the total 130 biopsies, pneumothorax appeared in 13 (10%), among which treatment was required in 2 (2%), Mild, self-limiting hemoptysis was nod in seven (5%), but in no case was the treatment required. Conclusion : We conclude transthoracic lung biopsy with an 18-gauge automated device is an effective procedure for the specific diagnosis of benign and malignant lung disease. It is safe with the complication rate comparable to that of fine-needle aspiration biopsy as well.

• Journal of the Korean Society of Radiology
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• v.16 no.4
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• pp.471-476
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• 2022

The purpose of this study was to study the probability of cancer occurrence due to photoneutron dose exposure of the colon and thyroid gland, which are normal organs, in 3D CRT, IMRT 5 portals, and IMRT 9 portals, which are radiotherapy methods for prostate cancer. The total prescribed dose for prostate cancer was 6600 cGy, 220 cGy per dose, and 30 divided irradiations were applied for the total number of times. After setting up the Rando phantom on the treatment table (couch) of the medical linear accelerator used in the experiment, an optically stimulated luminescence albedo neutron dosimeter was placed on the corresponding area of the large intestine and thyroid gland of the phantom for measurement. During 3D CRT of prostate cancer, the probability of secondary cancer due to photoneutron dose to the colon and thyroid gland, which are normal organs, was 1.8 per 10,000 people. And IMRT 5 portals were 8.7 per 10,000 people, which was about 5 times larger than 3D CRT. IMRT 9 portals derived the result that there is a probability that 1.2 people per 1,000 people will develop cancer. Based on this study, the risk of secondary radiation exposure due to the dose of photoneutrons generated during radiation therapy is studied, and it is thought that it will be used as useful data for radiation protection in relation to the stochastic effect of radiation in the future.

• Korean Journal of Culture and Social Issue
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• v.8 no.2
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• pp.51-76
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• 2002

Using open-ended questionnaires, two studies were conducted to explore social representations held by Korean undergraduates on children, adults and adolescents. Study 1 compared between children and adults with responses reported by 97 undergraduates(men: 28, women: 69). According to the results, characteristics of children distinctive from adults were basically personality-related and in particular, typical children were marked by high extroversion, low agreeableness, conscientiousness and culture. Further, happiness for both children and adults was determined mainly by interpersonal relationships, physical health and socio-economical status. However, good(or desirable) children characteristic of high agreeableness and conscientiousness were more similar to adults worthy of the name than to children worthy of the name. Using 57 undergraduates(men: 16, women: 41), Study 2 explored social representations of adolescents. The results indicated that overall adolescence were on the bridging state between childhood and adulthood. Happiness for adolescents, like both children and adults, was determined mainly by interpersonal relationships and socio-economical status. Finally, agreeableness, conscientiousness, self-, task- and relationship-related characteristics were involved in judging good(or desirable) adolescents. These findings were discussed in terms of features of Korean culture and human development.

• Journal of Hospice and Palliative Care
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• v.1 no.1
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• pp.47-55
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• 1998

Background : It is almost important therapy modality to control pain for the terminal cancer patients for the last 24 hours because those terminally illed patient deserved to have pain free and peaceful time before death. Physician who is deal with terminal cancer patients for their last 24 hours does not need to worry about drug addiction or other untoward side reactions of pain medications. The purpose of this study was to evaluate if terminally illed cancer patient was given pain medication properly and sufficiently and if there was any different behavior to control pain of terminal cancer patients between medical physicians and surgeons in terms of type, amount and administration route and frequency. Methods : A retrospective chart audit of analgesic type, amount and administration route was performed on the medical recorders of 160 hospitalized terminal cancer patients who had died in the Korea University Medical Center Anam Hospital during the period of July 1, 1994 to June 30, 1995. Patients were classified into 103 patients were cared for by medical physicians and 57 patients were cared for by surgeons. After then, we analysed the difference of pain control pattern between them. Different types and amount of analgesics were converted to a common standard, an oral morphine equivalents(OME) relative to 1mg of oral morphine. Results : 1) The total number of patients was 160, male 102 cases(63.8%), and the female was 58 cases(36.2%) respectively. 2) The mean age was 56.4(${\pm}14.62$) years old and mean admission period was 27.8 days(${\pm}34.85$). 3) The frequent cancer site was stomach 42 cases(26.315), lung and liver 29 cases(18.1%) each, pancreas 10 cases(6.2%) in order 4) 125 out of 160 subjects (78.13%) complained pain, and 66 out of 103(64.08%) and 31 out of 57(54.39%) were treated with analgesics to relieve pain. 50 out of 97(51.55%) were able to continue on oral medication. 5) 86 cases(53.75%) were well oriented 24 hours prior to death. 6) The frequent analgesics for regular basis were long acting form of oral morphine 34 cases(Medical phsicians 24, Surgeons 10), intravenous morphine 26 cases(Medical physicians 20, Surgeons 6) in order, and the most common p.r.n.(pro re nata) analgesics used was intravenous morphine. 7) The mean amount of analgesics on regular basis was 115.41 OME by medical physicians and 52.7 OME by surseons(P<0.05). The mean amount of p.r.n. analgesics was significantly larger in patients are for by surgeons(66.64 OME) than medical physicians 23.49 OME(P<0.01). 8) The mean frequency of administrated number of p.r.n. analgesics was 0.62 times/day on medical part and 1.88 times/day on surgical part (P<0.001). Conclusion : Of the 97 patients with advanced cancer, 51.55% were able to take oral medications in the last day of life. The parenteral analgesics were more frequently used in the patients cared for by surgeons than medical physicians. Over the half of terminal cancer patients were well oriented in the last day of life. Doctor's knowledge and attitude towards pain is very important to mange the pain, effectively.