Ⅰ . ( 목재공학 ) : 제지 슬러지의 첨가가 요소수지 파티클보드의 포름알데히드 방산 및 물리적 , 기계적 성질에 미치는 영향

김대준,이필우 한국목재공학회 1994 학술논문발표요지집 Vol.1994 No.-

시공간평균 기준기후에 기인한 농업기상특보의 불확실성

김대준,김진희,김수옥,Kim, Dae-jun,Kim, Jin-Hee,Kim, Soo-Ock 한국농림기상학회 2017 한국농림기상학회지 Vol.19 No.3

Agrometeorological advisories for farms and orchards are issued when daily weather exceeds a predefined range of the local reference climate, which is a long-term average of daily weather for the location. The reference climate at local scales is prepared by various simplification methods, resulting in uncertainty in the agrometeorological advisories. We restored daily weather data for the 1981-2010 period and analyzed the differences in prediction results of weather risk by comparing with the temporal and spatial simplified normal climate values. For this purpose, we selected the agricultural drought index (ADI) among various disaster related indices because ADI requires many kinds of weather data to calculate it. Ten rural counties within the Seomjin River Basin were selected for this study. The normal value of 'temporal simplification' was calculated by using the daily average value for 30 years (1981-2010). The normal value of 'spatial simplification' is the zonal average of the temporally simplified normal values falling within a standard watershed. For residual moisture index, temporal simplification normal values were overestimated, whereas spatial simplification normal values were underestimated in comparison with non-simplified normal values. The ADI's calculated from January to July 2017 showed a significant deviation in terms of the extent of drought depending on the normal values used. Through this study, we confirmed that the result of weather risk calculation using normal climatic values from 'simplified' methods can affect reliability of the agrometeorological advisories.

2022 개정 교육과정에 따른 그린스마트스쿨 공간분석

김대준,김민경 한국문화공간건축학회 2024 한국문화공간건축학회논문집 Vol.- No.85

Elementary schools in Korea continue to pursue a curriculum to cultivate student creativity and inquiry ability in the'academic-centered curriculum'. Play activities and physical activities are further strengthened in the 2022 revised curriculum.Thecurriculum continues to change, but this is not the case for school architecture. According to the 2022 revised curriculum, playand education should appear in a linked form, and for this purpose, the school space must be changed. The main purpose ofthis study is to plan a green smart school space that will be conducted together with the 2022 revised curriculum. Accordingly,this study will analyze the changing curriculum and suggest the characteristics of the school space newly required in the "2022Revised Curriculum" and the direction to be changed based on prior research and a case analysis of Green Smart SchoolElementary School. The classroom required a stage space and a play space, and the external space increased the internalspace and accessibility. In the library space, the space was expanded into a corridor, or a stepped reading space and teachingand learning space were arranged. In this way, the classroom, external space, and library are spaces where all spaces learnand have the characteristics of play and student participation space, and it is thought that these spaces will be able to cultivatecompetence as leading people with the inclusiveness and creativity pursued in the current revised curriculum.

언어 제국주의적 관점에서 본 대학생들의 영어에 대한 태도

김대준 제주대학교 인문과학연구소 2016 인문학연구 Vol.21 No.-

청년의 사회심리적 스트레스와 우울간의 관계: 사회적지지와 회복탄력성의 이중매개효과

김대준 한국콘텐츠학회 2023 한국콘텐츠학회논문지 Vol.23 No.10

The purpose of this study was to examine the effect of social and psychological stress on depression in young adults, and to find out the mediating effect of social support and resilience in their relationship. A study of 690 young people in their 20s and 30s found that. Young people's psychosocial stress had a statistically significant impact on depression. The mediating effect of social support was verified in the relationship between young people's psychosocial stress and depression. In other words, young people's psychosocial stress not only had a direct impact on depression, but also had an indirect impact on depression through social support(B=.081, CI: .024∼.143). The mediating effect of resilience was verified in the relationship between young people's psychosocial stress and depression. In other words, psychosocial stress not only had a direct impact on depression, but also had an indirect impact on depression through resilience(B=.078, CI: .001∼.159). This study suggests that policy support is needed to reduce social and psychological stress and prevent depression in young people. In addition, it is necessary to build a social support system for young people and to increase resilience to overcome psychological and emotional difficulties.

조기경보시스템 검증을 위한 무인기상관측망 실황자료 표출 시스템

김대준,박주현,김수옥,김진희,김용석,심교문 한국농림기상학회 2020 한국농림기상학회지 Vol.22 No.3

The Early Warning System for agrometeorological hazard of the Rural Development Administration (Korea) forecasts detailed weather for each farm based on the meteorological information provided by the Korea Meteorological Administration, and estimates the growth of crops and predicts a meteorological hazard that can occur during the growing period by using the estimated detailed meteorological information. For verification of early warning system, automated weather observation network was constructed in the study area. Moreover, a real-time web display system was built to deliver near real-time weather data collected from the observation network. The meteorological observation system collected diverse meteorological variables including temperature, humidity, solar radiation, rainfall, soil moisture, sunshine duration, wind velocity, and wind direction. These elements were collected every minute and transmitted to the server every ten minutes. The data display system is composed of three phases: the first phase builds a database of meteorological data collected from the meteorological observation system every minute; the second phase statistically analyzes the collected meteorological data at ten-minutes, one-hour, or one-day time step; and the third phase displays the collected and analyzed meteorological data on the web. The meteorological data collected in the database can be inquired through the webpage for all data points or one data point in the unit of one minute, ten minutes, one hour, or one day. Moreover, the data can be downloaded in CSV format. 농촌진흥청 농업기상재해 조기경보시스템은 기상청으로부터 제공되는 기상정보를 활용하여 농장 단위로 상세 추정하고, 추정된 상세 기상정보를 바탕으로 작물의 생육 추정 및 생육이 진행됨에 따라 발생할 수 있는 기상 재해를 예측하여 사용자에게 미리 전달한다. 이들 예측 정보를 검증하기 위한 무인기상관측망을 연구 지역 내에 구축하였으며, 관측망으로부터 수집되는 기상 실황 자료의 실시간 웹 표출 시스템을 구축하였다. 기상관측장비로부터 수집되는 기상요소로는 기온, 습도, 일사량, 강우량, 토양수분, 일조시간, 풍속, 풍향 등이며, 1분단위로 수집 및 10분 간격으로 서버로 전송된다. 자료 표출 시스템은 기상관측장비로부터 수집되는 1분 단위의 기상자료를 DB로 구축하는 1단계, 수집된 기상자료를 10분, 1시간, 1일 단위로 통계 분석하는 2단계, 수집 및 분석한 기상자료를 웹으로 표출하는 3단계로 구성된다. DB에 수집된 기상자료는 웹 페이지를 통해, 전체 지점 또는 1개 지점의 1분단위, 10분단위, 1시간 단위, 1일 단위로 조회할 수 있으며, CSV 포맷으로 다운로드 할 수 있다. 자료표출 시스템 접속 URL은 http://aws.agmet.kr 이다.

유럽요건 충족 이중원자로건물 설계

김대준,김용수,최영조 한국에너지학회 2013 한국에너지공학회 학술발표회 Vol.2013 No.11

The Effects of Jungri-tang Gamibang on Carbachol-accelerated Mouse Small Intestinal Transit

김대준,변준석 대한한의학회 2009 대한한의학회지 Vol.30 No.6

Objectives:To clarify the effects of Jungri-tang Gamibang on accelerating small intestinal movement induced by the stimulation of cholinergic neurotransmission. Methods:500, 250 and 125mg Jungri-Tang Gamibang or 20mg domperidone were dissolved or suspended in distilled water and orally pretreated on the carbachol-accelerated small intestinal transit mice once a day for 7 days at a volume of 10ml/kg (of body weight) using a Zonde needle attached to 1 ml syringes containing test drugs. Result:Significantly (p<0.01) increase of % regions of activated charcoal transit in the small intestine was detected in carbachol control compared to that of intact control. However, significant (p<0.01) decreases of % regions of activated charcoal transit were dose-dependently observed in all Jungri-Tang Gamibang extracts or domperidone- pretreated groups. Conclusions:it was concluded that Jungri-tang Gamibang enhancement in the normal intestinal motility and normalization in the accelerated intestinal motility might interfere with a variety of muscarinic, adrenergic and histaminic receptor activities or with the mobilization of calcium ions required for smooth muscle contraction non-specifically.

Generalized Cullen numbers with the Lehmer property

김대준,오병권 대한수학회 2013 대한수학회보 Vol.50 No.6

We say a positive integer n satisfies the Lehmer property if Φ(n) divides n − 1, where Φ(n) is the Euler’s totient function. Clearly, every prime satisfies the Lehmer property. No composite integer satisfy- ing the Lehmer property is known. In this article, we show that every composite integer of the form Dp,n = npn+1, for a prime p and a positive integer n, or of the form α2β + 1 for α≤ β does not satisfy the Lehmer property.

유럽요건 충족 원자력발전소 LAYOUT 설계 특성

김대준,김용수,이근성 한국에너지학회 2013 한국에너지공학회 학술발표회 Vol.2013 No.11