• Journal of Korean Neurosurgical Society
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• 제37권2호
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• pp.101-104
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• 2005

Objective: A persistent trigeminal artery (PTA) may be found incidentally on conventional cerebral angiography and magnetic resonance(MR) angiography. Our goal is to examine the course and relationships of the vessel to the surrounding structures. Methods: Cerebral angiography was performed in 494 patients and MRA in 880; the patients had or were suspected to have cerebrovascular disease. In the images, the incidence, origin, course, and relationships of the PTA were evaluated. Results: A PTA was found in two (0.4%) of the patients undergoing cerebral angiography and three (0.34%) receiving an MR angiography. In four patients, the PTA arose from the lateral part of the cavernous segment of the internal carotid artery, then passed caudally and around the base of the dorsum sellae. In the other patient, the PTA arose from the medial aspect of the siphon, and ascended sharply to pierce the dorsum sellae and join the basilar artery. In four cases, there was hypoplasia of a proximal basilar artery below the abnormal communication; the vessel was of increased diameter above the communication. Conclusion: Identification of a PTA with a trans-sellar course is crucial if trans-sphenoidal surgery is planned. Hypoplasia of a proximal basilar artery should not be mistaken for an acquired narrowing.

• 대한수학교육학회지:학교수학
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• 제16권3호
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• pp.471-489
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• 2014

본 연구에서는 '수학 교과 독서의 이해'를 주제로 수학 교사 연수 프로그램을 실행하였다. 교사 연수는 교과 독서 지도에 대한 교사들의 이해를 심화하고 효과적인 교과 독서 지도의 실천을 유도하고자 계획되었다. 특히, 연수 과정에서는 예비 수학 교사 교육의 지도 내용을 현직 수학 교사 연수 과정에 접목시키면서 교과 독서 지도에 대한 실천 사례를 구체적으로 예시하였다. 연수에 참여한 교사들은 교과 독서 지도를 의미있게 실천하는 다양한 방법을 접하면서, 자신의 지도 경험을 반성적으로 되돌아보고 이전보다 개선된 지도 방법을 탐색해 나가는 학습의 기회를 갖게 되었다. 교사 양성 기관과 중등학교 현장에서의 실천 사례가 공유되면서 교사 교육자나 교사 모두에게 개선된 교육 실천을 위한 학습 경험이 이루어졌다. 본 논문에서는 교사 연수의 실행 과정과 그 결과를 분석하여 제시한다. 나아가 본 연구의 제한점을 바탕으로 앞으로의 교사 연수 프로그램 개발 및 운영에 관한 제언을 하였다.

• 환경영향평가
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• 제22권6호
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• pp.547-556
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• 2013

Recently, golf courses have increased over the years because golf became popular leisure sport. Various environmental problems have been then issued by a golf course during constructing and running them. A problem of pesticide, which is serious among various environmental problems, from golf course has harmful effect on surrounding area and makes human suffer from acute and chronic diseases. Pesticides are used for the cost-effective managing of golf course and the amount of pesticides also increases as the number of golf course increase. Since the assessment of pesticides on near-by surrounding has been focused on water and soil media, studies related to atmospheric dispersion have been hardly attempted. The method to assess an impact of pesticide nearby agricultural production by the atmospheric dispersion using AGDISP(AGricultural DISPersal) model was developed and applied to the actual planned golf course located in Hongcheon, Gangwon. For implementing AGDISP, parameters were investigated from the golf course's land use planning map, pesticide spray device, Hong-Cheon weather station and etc. First of all, a kind of pesticide, a form of spraying pesticide, geographical features, weather data, and distance(golf course to plantation) were investigated to understand how to work these parameters in AGDISP. Restricted data(slope angle, droplet size distribution and solar insolation) sensitivity analysis of these parameters to estimate effect of pesticide nearby a plantation and a high relative contribution data of analyzed data was selected for input data. Ethoprophos was chosen as the pesticide used in the golf course and the amounts of pesticide deposition per annual agricultural productions were predicted. The results show that maximum amount of pesticide deposition through atmospheric dispersion was predicted $2.32{\mu}/m^2$ at 96 m where the nearest organic plantation exists. The residues of pesticide were also estimated based on the annul production of the organic and the deposition amount of the pesticide. Consequently, buckwheat, wheat and millet were likely to exceed maximum residue limits for pesticides in foods(MRL) and sorghum, corn and peanut were likely to exceed MRL by organic farming as well.

• 한국학교보건학회지
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• 제11권2호
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• pp.217-228
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• 1998

This study was conducted to investigate determinants of intention of smoking cessation behavior. We sampled 204 university student smokers using questionaires and analyzed the data using the t-test, ANOVA, Pearson product-moment correlation, and multiple regression. The results are as follows: 1. The attitudes concerning smoking cessation behavior are related to a student's course of study, religion and is further related to whether or not they tried to stop smoking. The subjective norm is related to smoking cessation recommendations. Perceived behavioral control is related to a growth criterion, the smoking amount and whether or not they have tried to stop smoking. The intention of smoking cessation behavior is related to smoking amount and whether or not they nare tried to stop smoking. 2. Total symptom number is related to smoking amount and smoking period. 3. Total symptom number is related to behavioral belief, attitude, and the intention to stop smoking. In conclusion, it was found that university students smoke far too much, however the intention to stop smoking is very low. Therefore, an intention promoting program of smoking cessation behavior is needed to reduce the smoking rate and relaxation therapy is necessary for in changing health promoting habits.

• 디지털융복합연구
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• 제13권9호
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• pp.169-175
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• 2015

융복합 학문이 중요시 되는 21세기에 교수학습방법도 이론 중심의 강의보다 컴퓨터를 활용한 학습이 높은 학습 효과를 보이는 것으로 연구되고 있다. 본 연구는 경기지역 4년제 대학생 중 회계정보수업을 수강한 학습자를 대상으로 계획행동이론을 적용하여 회계정보수업에서 인식적 참여를 향상시키기 위하여 어떠한 요인이 영향을 미치는지를 실증 분석하였다. 분석결과는 첫째, 회계정보수업의 TPB 변수들은 인식적 참여에 있어서 본질적 호기심에 유의적으로 정(+)의 영향을 미치는 것으로 나타났다. 이는 신기술의 활용학습이 회계정보수업에서 학습 태도, 인지된 행위통제, 주관적 기준이 높을수록 인식적 참여 중 본질적 호기심이 향상된다는 것을 보여주는 결과이다. 둘째, 회계정보수업의 TPB 변수 중 주관적 기준이 즐거움에 정(+)영향을 주는 것으로 나타났다. 본 연구의 공헌점은 TPB가 인식적 참여에 미치는 영향을 분석함으로써 학습자의 심리상태를 실증적으로 검증하고, 회계교육 개선을 위한 시사점을 제공하였다는 것이다. 향후에는 연구의 한계점을 보완하여 인식적 참여에 대한 다양한 변수에 대한 연구가 이루어져야 할 것으로 생각한다.

• Current Research on Agriculture and Life Sciences
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• 제7권
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• pp.185-199
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• 1989

The main goal of this research was to develop a Golf course planning Methodology in terms of use and preservation of natural resources which consider balance of Ecosystem. This study suggested the necessity of analysis of natural resources in the development site prior to its planning. The analysis will give a benefits both the profits of private enterprise and national interests for reuse of natural resources. Study site was planned region of Kyungpook Country Club, which located near Weagwan. In connection with this study, natural resources which will reuse in the planning stage and soil status in the development site were analyzed.

• Archives of Plastic Surgery
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• 제36권3호
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• pp.344-347
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• 2009

Purpose: Malignant soft tissue tumors, known as sarcomas, are well known to be locally aggressive, frequently metastatic, and highly recurrent. In other hands, intermediate soft tissue tumors often recur locally with adjacent tissue infiltration so the clinical management is difficult as sarcoma. In the present study, we evaluate the clinical course of the intermediate soft tissue tumors and consider the management plan for those. Methods: From March, 1998 to April 2008, total 3 patients of intermediate soft tissue tumors underwent operations. A patient with fibrohistiocytic neoplasm, a free flap reconstruction was performed, and he underwent several more operations because of recurrences. Other patients with desmoids - type fibromatosis showed local invasion and adhesion, and one of them underwent reoperation due to local recurrence. Results: 2 of 3 patients underwent recurrences of tumors and reoperations were performed. In another patient with no recurrence, follow-up period was just 5 months, so there may be recurrence of tumor in long term follow-up. Conclusion: The clinical course of intermediate soft tissue tumors shows high recurrence rate. So clinically, intermediate soft tissue tumors should be considered as sarcomas. The successful management requires wide resection, carefully planned reconstruction, and close follow up with radiologic evaluation.

• 해양환경안전학회지
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• 제27권1호
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• pp.38-46
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• 2021

4차 산업혁명 시대를 맞이하면서 첨단기술이 산업 전반에 사용됨에 따라 자율운항선박기술에 대한 관심이 고조되고 있다. 이에 본 연구에서는 자율운항선박에 대한 기초 연구로써 모형 선박을 제작하고 드론에 사용되는 아두파일럿(Ardupilot)을 적용시켜 자율운항 제어 시스템을 구축하였다. 구축된 모형선을 활용하여 다양한 항해계획을 실행함으로써 자율운항 선박의 운항 자동제어 가능성을 확인하였다. 침로안정성 실험에서는 모형선이 정해진 침로를 똑바로 따라가지 못하고 지그재그(S자 형태)로 항행하면서 침로에서 최대 5.4 m(4.5 L) 이탈하였으며, 매개변수를 수정하여 이탈거리를 최대 1.8 m(1.5 L)까지 감소시켰다. 선회성능 실험에서는 선회권의 직경이 최대 약 9.3 m(7.8 L)로 나타났는데 매개변수를 수정하여도 큰 변화를 확인할 수 없었다. 하지만 WP 도착 전 감속하도록 실험한 결과 선회권의 직경이 최대 약 3.2 m(2.7 L)로 감소된 것을 확인할 수 있었다. 정지성능을 평가하기 위해 모든 실험의 마지막 정지 예정 위치와 실제 모형선이 정지한 위치를 상호 비교하였으며, 정지 예정 위치로부터 최소 0.4 m(0.3 L), 최대 6.2 m(5.2 L) 떨어진 지점에서 모형선이 정지하였음을 확인할 수 있었다. 추후 다양한 매개변수의 수정·보완을 통한 성능 향상이 이루어진다면 자동제어를 통한 자율운항선박의 자동접안을 위한 연구를 진행할 계획이다.

• 한국과학교육학회지
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• 제17권1호
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• pp.85-92
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• 1997

The field is a good learning environment that offers many opportunities. Status of conducting field trip in the middle and high school was investigated As a result, there was few teachers who disagree that a course in science should include learning in the field. Yet, on practical side, teachers who used to conduct the field trip over once a year in science class appeared to be about 23% only. Most of schools conducting field trips hadn't well-planned program for instructional activities. Many of teachers appealed that they should not get release time for conducting an extended field experiences, and that they could not obtained good information in relation to the contents, the methods and strategies of field activities. It says that a good field trip needs administrative and financial surport, many informations, and the teacher's exertion.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.681-686
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• 2006

This study is to examine slope activity safety ratio on the strength of the natural sample or soil collected through field test in the slope activity region during destruction happened in the course of soil-relocating work planned for ground improvement under strict supervision at the house-building site, using Bishop's slope analysis method and investigate relationship between slope analysis theories and actual destruction so as to compare determining method of clean water of soil essential for slope activity analysis and accuracy of resulting value of clean water of soil.