• 한국컴퓨터정보학회논문지
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• 제24권2호
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• pp.75-84
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• 2019

The purpose of this study was to present a good pants pattern for boys aged 13-18 by comparing and analyzing the pants pattern according to lower body shape. And through it, this study was to provide basic data for pants production considering male student body shape. The pattern of this study used the industrial type Lee Hee-chun pattern and DC Suite Program for 3D virtual simulation. As a result of the appearance evaluation, there was a significant difference between the patterns in most items. Type 2 was rated highly, followed by Type 4, Type 3, and Type 1. Type 1 required correction of the length of the pants and the amount of crotch part, while type 3 required adjustment of the pants in the knee area. Type 4 required correction of pattern drawing method of crotch width, thigh circumference, and knee circumference. This pattern method was evaluated as suitable for slender body shape. This study suggests a pants pattern system suitable for adolescent boys by reflecting the body shape characteristics of adolescent boy with a change of body shape. It is expected that this will meet the increasing demand for fitting. In this study, we have examined 3D virtual simulation, not actual wear experiment, so it will be necessary to investigate the difference through actual clothing experiment for adolescent boys.

• 한국HCI학회논문지
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• 제13권3호
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• pp.65-73
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• 2018

게임플레이어는 게임에서 수많은 적들을 만나고 싸우게 되는데, 이 때 너무나 손쉽게 이기거나 진다면 게임의 재미는 반감될 것이다. 그 반대로 너무 어렵게 이긴다거나 지는 것도 게임을 지루하게 만드는 요인으로 작용한다. 따라서 상대방과의 전투나 경쟁에서 아슬아슬하게 승리하는 긴장감을 주기 위해서는 게임의 밸런스가 잘 맞아야 한다. 그만큼 게임 밸런싱 작업은 게임의 재미와 가장 직접적으로 영향을 미치는 요소로 작용한다. 그리고 게임 밸런스만큼 중요한 것이 있는데, 그것은 플레이어에게 적절한 난이도의 상대를 계속 만나게 하는 것이다. 본 연구에서는 이러한 문제를 해결하려는 방법으로써 게임 밸런스에 딥러닝을 적용하여 지능 캐릭터가 플레이어를 통해 학습하고 스스로 플레이어의 난이도에 따라 자신의 난이도를 조절할 수 있도록 고안하였다. 이것이 활성화되면 게임 기획자나 개발자에게는 그만큼의 비용을 절약하는 동시에 플레이어에게는 항상 흥미로운 상대를 제공할 수 있는 획기적인 방법이 될 것이다.

• 한국식품영양과학회지
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• 제31권3호
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• pp.399-404
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• 2002

박테리오신 생성 젖산균을 이용하여 과실채소 혼합발효액을 제조하고, 발효액의 이화학적 특성과 항균특성을 조사하여 항균 이온음료로서의 가능성을 고찰하였다. 박테리오신 생성 젖산균을 이용한 발효시 발효종균으로 Leu. mesenteroides와 Lc. lactis ATCC l1454를 동시 접종하였을때는박테리오신이 생성되지 않았으며, Leu mesenteroides에 의한 젖산발효 후에 pH를 조정하고 박테리오신 생성균을 접종하였을 때 적정량의 산과 항균물질이 생성되었다. 발효액의 당함량과 무기염류를 분석한 결과, 발효액에는 시판되고 있는 이온음료에 비해 Na과 P의 함량은 높은 편이나, K,Ca, Mg 등의 농도 차이는 크지 않은 것으로 나타났으며, 당함량도 약간 낮은 것으로 나타났다. 발효액은 충치 원인균인 Streptococcus mutans에 대한 안정된 항균효과를 지니고 있으며, 발효액의 색상은 저장 중에도 안정된 것으로 나타났다. 따라서 과실채소 혼합발효액의 무기질 발란스와 기호도를 고려한 당농도 조절 등의 보완이 이루어진다면 우리고유의 이온음료로 개발 가능성이 있다고 판단된다.

• 통상정보연구
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• 제16권4호
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• pp.247-261
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• 2014

본 연구는 최근 논란이 되고 있는 '저탄소차 협력금제도'에 대해 살펴보고자 한다. 제도 도입의 취지와 목적, 필요성 등을 통해 자동차 산업 발전을 위한 대안은 무엇인지 제시하고자 하였다. 저탄소차 협력금제도의 도입은 차량구입비용에 큰 변화를 가져옴으로써 차량구매관행을 크게 변화시킬 수 있으며, 이를 통해 차량에서 배출되는 온실가스의 감축 효과를 기대할 수 있을 것으로 예상된다. 그러나 제도의 성공적 정착을 위해서는 무엇보다도 국민들이 공감할 수 있는 적절한 수준에서 보조금-부담금 구간 설정이 이루어져야 할 것이다. 또한 제도 시행 이전에 자동차 관련 기존 세제에 대한 조정, 부담금의 분할 징수 등의 방안에 대해서도 충분한 검토가 있어야 할 것으로 여겨진다. 자동차 제작사의 경우 제도시행 시점까지 수입차와 동등한 수준의 이산화탄소 배출량을 기록할 수 있도록 기술개발에 최선을 다해야 할 것이며, 정부 역시 이러한 노력에 대한 지원을 강화해야 할 것이다.

• 한국전자통신학회논문지
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• 제15권4호
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• pp.759-764
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• 2020

4차 산업혁명에 맞춰 제조·생산의 패러다임 또한 변경되고 있는 상황에서 인더스트리 4.0에 대한 사회적 요구 및 방향은 이미 되돌릴 수 없으며, 그로 인하여 3D프린팅 기술의 확장성과 범용성이 주목받고 있다. 3D 프린터는 제품 개발 비용 감소를 위한 목적으로 개발된 기술로, 최근 3D 프린터 기술특허가 만료되면서 관련 기술이 공개되었고 이를 적용한 다양한 기술이 연구 개발되고 있으며 이로 인해 다양한 특이점이 발견 및 보완되고 있다. 이에 본 연구에서는 3D 프린터 사용에 있어 오프라인에서 기계를 직접 조정하고, 모델링 데이터의 직접 입력을 통해 3D프린팅 시작해야 하는 현재 출력방식에 대한 불편함을 보완하기 위해 다중 3D 프린터에 대한 실시간 온라인 출력요청 및 정상적인 출력물을 기대할 수 있는 모니터링 기능 그리고 다중 3D 프린터에 대한 온라인 실시간 원격관리 기능을 수행하기 위해 IoT 시스템에 대한 설계를 제안한다.

• Asian-Australasian Journal of Animal Sciences
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• 제17권4호
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• pp.460-466
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• 2004

This study was undertaken with the aim to establish a reliable radioimmunoassay (RIA) system for urinary pregnanediol glucuronide (PdG) and to employ it for monitoring the reproductive status of dairy cows. Urine and blood samples were collected from the Holstein cows both pregnant and non-pregnant. The samples were then investigated for evaluating the relationship between progesterone ($P_{4}$) in blood and PdG in urine adjusted with or without urinary creatinine basis. Biweekly urine collection was employed for three cows in estrous and those artificially inseminated, while urine from pregnant cows was collected on a monthly basis. P_{4}$ and PdG levels were measured by enzymeimmunoassay (EIA) and RIA techniques, respectively. Our results indicated the sensitivity of PdG for RIA being 35 pg/tube and the recovery rate of 100%. Urinary creatinine concentrations also fluctuated within a day, but change at midday was not noteworthy. Regardless of the time of urination the change in concentrations of PdG was relatively smaller and did not vary significantly. The urinary PdG concentration showed periodic changes as that with serum P_{4}$ levels during the cow's estrus cycle. The correlation coefficient rose when creatinine level in urine was adjusted but the change was also not significant. The concentrations of PdG during the luteal phase were detected between 8.2 and 17.4 ng/ml, three to five times higher than that in the follicular phase. The concentration of PdG from pregnant cows (21 days after conception) was three to four times higher than in the nonpregnant cows. Our finding suggests that the determination of urinary PdG could be reliably employed for early pregnancy detection. The urinary PdG level continued to raise until 30 days pre-partum while the concentration reached its peak at 30 ng/ml, after which it started to fall 18 to 30 days before parturition and finally fell to its nadir value one week after parturition. As the correlation coefficient between the urinary PdG and serum P_{4}$ was higher than that corrected by urinary creatinine it can be suggested that the adjustment is not needed. The concentrations of urinary PdG could be maintained stably for 2 days in urine samples stored at room temperature and extended to 8 days when the samples were pretreated by boiling for 30 minutes. In conclusion urinary PdG concentration even without the need for creatinine basis adjustment can be used directly for monitoring the reproductive status of dairy cows.

• 대한한방부인과학회지
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• 제34권1호
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• pp.1-14
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• 2021

Objectives: We studied for the adjustment of the patterns of 'The Diagnostic Tool for Climacteric and Postmenopausal Syndrome Pattern Identification (hereinafter CaPSPI)' (studyI) and the correlation between CaPSPI and Korean medicine doctors' diagnosis which was carried out without knowing the results of CaPSPI (studyII). Methods: The studyI followed the previous study method in 2018 (2018-3). The studyII was conducted from June 1, 2019 to July 10, 2020 with ◯◯ University Korean Medicine Hospital IRB's approval (2019-4). Doctors' diagnosis was conducted face-to-face with the subjects. Doctors' diagnosis was carried out based on the Kupperman's questionnaire, 'Diagnosis System of Oriental Medicine (hereinafter DSOM)' and four examinations (四診) records. The diagnosis was marked with 0 for 'no', 1 for 'somewhat', 2 for 'yes' and 3 for 'very yes'. The correlation between CaPSPI and the mean of doctors diagnostic scores were investigated statistically. Results: The studyI showed that heart-heat (心火) pattern was added. The Factor loading coefficient for heart-heat was 0.551 to 0.789, and the Cronbach's coefficient was 0.896. The studyII showed that the diagnosis (Kappa statistic) of two doctors showed statistically significant concordance (all eight patterns), with correlation of them were 0.3 or higher. And the correlation between the CaPSPI score and the mean of doctors' diagnostic score showed a statistically significant correlation, with liver qi depression (肝鬱) being the highest at 0.552 and dual deficiency of the heart-spleen (心脾兩虛) being the lowest at 0.301. Conclusions: Since the diagnosis results of CaPSPI showed a significant correlation with the diagnosis of Korean traditional medicine experts, it was believed that the CaPSPI results can be trusted and used for clinical purposes.

• 대한환경공학회지
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• 제38권8호
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• pp.452-458
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• 2016

본 연구는 음식물쓰레기의 2상 혐기성 소화에서 메탄가스 발생량을 높이기 위해 고온 가용화 전처리시 pH를 $7.00{\pm}0.50$으로 조정하여 대조군과 비교하였다. pH에 따른 가용화 효율 회분식(Batch) 실험에서 pH가 $4.20{\pm}0.40$ (pH를 조절하지 않은 것)에서부터 $7.00{\pm}0.50$, $12.00{\pm}0.50$으로 증가시킴에 따라 가용화 효율도 각각 26.2, 47.1, 55.6%로 높게 나타났다. 그러나 pH를 $7.00{\pm}0.50$에서 $12.00{\pm}0.50$으로 증가시켰을 때 가용화 효율은 8.5%증가로 큰 차이가 없었다. 실험실규모 2상 혐기성 소화시스템은 가용화 조건에서 pH를 조절하지 않은 Run1 (pH $4.20{\pm}0.40$)과 pH를 $7.00{\pm}0.50$으로 조절한 Run2로 나누어 운전되었다. pH $7.00{\pm}0.50$의 가용화에 의해 Run2시스템에서 전반적으로 높은 SCOD 및 TVFA농도가 측정되었다. 산생성조에서 TVFA농도는 18.4 g/L로 Run1보다 1.8배 높은 결과를 나타내었다. 그 결과 메탄생성조에서 메탄가스 발생량은 0.333 L/gVS로 Run1의 0.282 L/gVS과 비교하여 18% 향상되었다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.8-9
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• 2017

Soybean yield has been low and unstable in Japan and other areas in East Asia, despite long history of cultivation. This is contrasting with consistent increase of yield in North and South America. This presentation tries to describe perspective of breaking stagnation of soybean yield in East Asia, considering the factors of the different yields between regions. Large amount of rainfall with occasional dry-spell in the summer is a nature of monsoon climate and as frequently stated excess water is the factor of low and unstable soybean yield. For example, there exists a great deal of field-to-field variation in yield of 'Tanbaguro' soybean, which is reputed for high market value and thus cultivated intensively and this results in low average yield. According to our field survey, a major portion of yield variation occurs in early growth period. Soybean production on drained paddy fields is also vulnerable to drought stress after flowering. An analysis at the above study site demonstrated a substantial field-to-field variation of canopy transpiration activity in the mid-summer, but the variation of pod-set was not as large as that of early growth. As frequently mentioned by the contest winners of good practice farming, avoidance of excess water problem in the early growth period is of greatest importance. A series of technological development took place in Japan in crop management for stable crop establishment and growth, that includes seed-bed preparation with ridge and/or chisel ploughing, adjustment of seed moisture content, seed treatment with mancozeb+metalaxyl and the water table control system, FOEAS. A unique success is seen in the tidal swamp area in South Sumatra with the Saturated Soil Culture (SSC), which is for managing acidity problem of pyrite soils. In 2016, an average yield of $2.4tha^{-1}$ was recorded for a 450 ha area with SSC (Ghulamahdi 2017, personal communication). This is a sort of raised bed culture and thus the moisture condition is kept markedly stable during growth period. For genetic control, too, many attempts are on-going for better emergence and plant growth after emergence under excess water. There seems to exist two aspects of excess water resistance, one related to phytophthora resistance and the other with better growth under excess water. The improvement for the latter is particularly challenging and genomic approach is expected to be effectively utilized. The crop model simulation would estimate/evaluate the impact of environmental and genetic factors. But comprehensive crop models for soybean are mainly for cultivations on upland fields and crop response to excess water is not fully accounted for. A soybean model for production on drained paddy fields under monsoon climate is demanded to coordinate technological development under changing climate. We recently recognized that the yield potential of recent US cultivars is greater than that of Japanese cultivars and this also may be responsible for different yield trends. Cultivar comparisons proved that higher yields are associated with greater biomass production specifically during early seed filling, in which high and well sustained activity of leaf gas exchange is related. In fact, the leaf stomatal conductance is considered to have been improved during last a couple of decades in the USA through selections for high yield in several crop species. It is suspected that priority to product quality of soybean as food crop, especially large seed size in Japan, did not allow efficient improvement of productivity. We also recently found a substantial variation of yielding performance under an environment of Indonesia among divergent cultivars from tropical and temperate regions through in a part biomass productivity. Gas exchange activity again seems to be involved. Unlike in North America where transpiration adjustment is considered necessary to avoid terminal drought, under the monsoon climate with wet summer plants with higher activity of gas exchange than current level might be advantageous. In order to explore higher or better-adjusted canopy function, the methodological development is demanded for canopy-level evaluation of transpiration activity. The stagnation of soybean yield would be broken through controlling variable water environment and breeding efforts to improve the quality-oriented cultivars for stable and high yield.

• 무역학회지
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• 제48권4호
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• pp.209-232
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• 2023

EU는 2030년 온실가스 배출량을 1990년 대비 55% 감축 목표로 하는 'Fit for 55' 입법 패키지에 국가별로 다른 온실가스 규제로 인한 수출품의 불균형한 가격을 조정하는 조치로 탄소국경조정제도(CBAM)를 2026년부터 시행하는 내용을 포함하였고, 이는 수출 비용의 증가를 가져와 우리나라 철강 제품 수출에 부정적인 영향을 미칠 것으로 예상된다. 본 연구는 철강 제품의 EU 수출에 영향을 주는 요인과 CBAM에 따른 수출 변화를 추정하기 위해 2001년부터 2021년까지 EU 27개 회원국의 통계를 이용하여 중력모형으로 실증 분석을 하였다. 분석 결과로 각 EU 국가의 경제 수준, 인구 규모, 환율, 제조업 생산지수, EU 단일시장의 효과는 우리나라 철강 제품의 수출 증가에 도움을 주지만, CBAM의 실행으로 2026년에 탄소세가 CO₂ 1톤당 USD 10 ~ USD 30이 부과되는 것을 가정하여 중력모형으로 추정한 결과는 철강 수출이 CBAM 시행 이전에 비해 약 -3.6% ~ -5.7% 감소하는 것으로 나타나 앞으로 철강 제품의 가격 경쟁력 향상과 CO₂ 저감을 위한 기업과 정부의 대비가 필요할 것으로 보인다.