• 대한토목학회논문집
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• 제40권5호
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• pp.521-526
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• 2020

활주로 및 유도로 등의 비행장 포장체는 고정익 항공기의 원활한 이착륙을 위해 반드시 필요한 시설물로 군에서도 전·평시 항공작전의 수행을 위해서 가장 중요한 시설물이라 할 수 있다. 따라서 전시에 이러한 시설의 피해를 줄이고 최단시간에 복구하는 것이 필요하다. 최근의 공격양상은 대형 폭발구를 조성하기 위한 고폭탄을 사용하기 보다는 적의 비행장을 효과적으로 공격하고자 정확도와 관계없는 다탄두 무기체계를 사용하는 것으로 변화되고 있다. 따라서 본 연구에서는 다탄두 무기체계에 적용된 탄두의 제원과 구성을 통해 현재 군에 설치된 활주로 및 유도로 등에 접촉하여 폭발이 이루어졌을 때 포장체의 방호성능 및 피해양상을 확인해 보았으며, 다탄두 무기체계는 광범위한 피해를 줄 수 있지만 각각의 탄두의 파괴력은 그리 크지 않으므로 이러한 공격 대한 최소한의 방호를 위해서 필요한 비행장 포장체의 설계 방안을 제시하고자 한다.

• 한국식품과학회지
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• 제24권4호
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• pp.311-314
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• 1992

역삼투 방법을 이용한 두부순물의 정화시 역삼투 잔사의 활용 가능성을 검토하기 위해 두부순물 농축물의 성분 특성 및 분리 단백질의 기능성을 조사하였다. 두부순물의 역삼투 잔사 농축물에는 자당, 라피노오스 및 스타치오스가 건물 중으로 각각 32.59%, 4.76% 및 9.99% 함유되어 있었고, 무기물중 칼륨이 5.23%로 회분의 42.7%를 점하였다. 또한 조단백질 함량은 18.69%이었으며 아미노산 조성 및 전기영동상의 sub-unit 양상은 분리 콩단백질과 다소 차이를 보였다. 한편 두부순물로부터 분리한 단백질의 기능성중 pH에 따른 용해도는 분리 콩단백질에 비해 전반적으로 다소 높은 값을, 유화능과 유화안정성 및 점도는 분리 콩단백질보다 비교적 낮은 값을 나타냈다.

• 한국대기환경학회지
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• 제23권1호
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• pp.110-124
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• 2007

In this study, the control efficiency of odorous compounds was measured from diverse control process units of 14 individual companies located within the Ban-Wall industrial complex of Ansan city, Korea (January to July 2005), To quantify the control efficiency levels of major odorous compounds, we collected odor samples from both the front and rear side of 17 control process units ($N=17{\times}2=34$). If the control efficiency is compared for each of 32 compounds between different process units, wet scrubber (WS) was found to be the most effective unit in terms of the sum of pollutants showing the positive control signals. Although the WS system shows generally a good control pattern for VOC, it is not the case for most index odorous pollutants; only 3 out of 12 index compounds were found to show positive control efficiencies. The results of the study also indicated that the control efficiency differ greatly between different industrial sectors and/or control process types. In the case of leather industry, carbonyl compounds were found to exhibit the highest control efficiency with its values varying from 19 to 90%. On the other hand, in the case of metal production sector, VOC recorded the maximum control efficiency with values varying from 18 to 79%. According to this study, most air pollution control facilities operated in most companies show fairly poor control efficiencies for most malodor compounds. Hence, to obtain best control efficiency of odorous pollutant emission, acquisition of better information on source characteristics and establishment of effective control technologies are highly demanding.

• 한국실내디자인학회논문집
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• 제24권3호
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• pp.87-94
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• 2015

To analyze the space features of small-sized detached houses, this study has compared the floor plan types of detached houses and apartments. Currently small-sized detached houses are popular in Korea. The comparative analysis was focused on common residential patterns and the apartment plan. The results of space syntax were summarized as follows: four types of apartments and twelve types of small-sized detached houses were deduced by the relative spatial depth analysis. Among the sixty-seven house samples, only two of them showed the same pattern as those of apartments, which showed that each room of detached houses had distinct difference with those of apartments. According to the integration and control analysis, each space of apartments showed difference within narrow range, while the space of detached housed showed difference within wide range. In addition, the detached houses showed distinct relations between the center of space and the surroundings, and there are distinct differences between the easier layouts for access rooms and difficult ones. Moreover, the living rooms of detached houses somewhat exist under the low integration condition, and they cannot be standardized in the center of house, which are different with those of apartments. The master bedrooms of detached houses exit at the surrounding space same as those of apartments. Nevertheless the toilet is in the master bedroom which made its control lower than those of apartments.

• 한국의류산업학회지
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• 제14권2호
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• pp.294-303
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• 2012

This study was designed to develop air force mechanic parka, evaluate it, and ultimately provide functionally superior parka to the air force. The development process was 1) conducting a survey, 2) identifying problems and shortcomings of currently-supplied parkas, and 3) improving the design, pattern and materials. The newly-developed parkas were evaluated in terms of their ease of fit, clothing mobility, and insulation. Ease of fit was evaluated by subjects' sensory tests, and clothing mobility was by fitness-for-motion tests and range-of-motion tests using a Goniometer. Evaluation on insulation was conducted by thermal manikins. Findings of this study were as follows: 1. In the subjective evaluation on clothing mobility, new parkas were considered to have sufficient ease of fit while previous ones scored much lower, confirming the improvement of the new version. 2. Both subjective tests and ROM measurements on fitness for motion verified the superiority of the new parkas. 3. Insulation tests found that although insulation capability of newly-developed parkas was at a similar level to those of the previous ones, their insulation capability per unit weight was superior, demonstrating that new parkas were better at blocking heat conduction. When making changes in parka patterns and designs to enhance the mobility, it was necessary to maintain the insulation function. The new parkas developed by this study was verified to be superior to the previous ones in their insulation and clothing mobility.

• 비파괴검사학회지
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• 제31권5호
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• pp.522-528
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• 2011

인간의 청각기능을 보조하거나 대체할 수 있는 차세대 인공와우기술의 개발은 기존 인공와우의 단점인 잦은 충전, 장애 노출 등을 극복하고 향상된 음감을 전달할 수 있는 기술로서 세계적으로 많은 연구를 수행하고 있다. 본 연구에서는 달팽이관의 기저막이 갖는 주파수 분리 기능 및 유모세포(haircell)의 이온채널 작용에 의한 생체 전기신호 발생 기능을 할 수 있는 PVDF(polyvinylidene fluoride) 압전 박막형 인공기저막을 설계, 제작 및 시험평가를 하고자 하였다. 생체 기저막과 유사한 주파수 분리 특성을 갖는 사다리꼴 형상의 인공기저막을 제작하고, MEMS 공정을 이용한 전극 증착 및 유체 유동이 가능한 챔버를 형성하였다. 또한 인공기저막의 거동을 측정하기 위하여 비접촉 LDV측정 장비, 스피커, 기준 마이크로폰 등을 사용하여 실험 장치를 구성하였다. 기계적 성능시험 결과, PVDF 압전박막형 인공기저막은 입사하는 음파의 주파수 분리를 잘 수행할 수 있음을 실험적으로 입증하였다.

• 대한교통학회지
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• 제22권2호
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• pp.109-119
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• 2004

COSMOS는 1990년부터 개발되어 현재까지 현장실험 및 시스템 검증과 여러 차례의 기능개선을 통하여 점차 안정화 되어가고 있으며, 그 효율성이 입증되어 서울시 전역으로 확산되고 있는 추세이다. 그러나 현재는 CI의 옵셋패턴이 한쪽 축 방향의 유입/유출 이동류에 의해서만 산출되고 있어, 다른 축방향에 속한 교차로는 자신과 무관한 옵셋패턴에 의해 운영되는 경우가 발생한다. 또한 Sub Area 결합/분리시 CI의 유입/유출 방향의 축에 속한 Sub Area와의 결합/분리만이 가능한 실정이다. 따라서 본 연구에서는 CI의 동서와 남북 축 각각의 유입/유출 방향을 설정하여, 두 축의 옵셋패턴과 현재 운영 주축을 계산하여 설정하도록 하였다. Sub Area 내의교차로들은 자신이 속한 축의 옵셋패턴에 의해 운영되며, 결합/분리시에는 주축방향간의 '결합'과 이외의 경우의 '연동'의 개념으로 운영되도록 하였다. 개선된 알고리즘은 COSMOS 운영 S/W에 탑재하여, 강남구 10여개 교차로를 대상으로 기능성 평가 및 효율성 평가를 실시하였다. 평가 결과 개선 알고리즘이 기존방식보다 통행시간을 감소시키는 것으로 나타났다.

• 패션비즈니스
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• 제11권5호
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• pp.110-123
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• 2007

This study aims at analyzing the characteristics and the mode of deconstructionism expressed in fashion design centering on review of literatures and precedent researches. Through the review of previous studies and various articles, three major features with regard to deconstructionism were found: indeterminacy of meaning, decentralization, and inter -textuality. In fashion, the feature of indeterminacy of meaning expressed by non formula way such as unfinished, layering, obi or straight line cutting and it was divided into unstructured and unorganized factors. The feature of decentralization expressed by disorganization of sex, race, culture and humanism such as trans-gender, third world costume, sub-culture, posthumanism. Last, the feature of inter-textuality expressed by employing the fashion texts more than two simultaneously such as mixture of unmatched or unusual various clothing items, fabrics, patterns and styles. Non formality features in fahsion which divided into unstructured and unconstructed factors. The decentering of meaning means that disorganized the existing concepts of sex, race, culture and humanism features in fashion which divided into cross-gender, subculture, and post-humanism. Lastly, the feature of inter-textuality means that employed the fashion text more than two which is classified into factors of mixing mode and mixed styles. Unstructured factors were expressed by destroying the design principles such as balance, harmony and unit in fashion. Unconstructed factors were expressed by ignoring the basic costume structures and components in fashion. Cross-gender was expressed by manish and duality style in fashion and 3rd world costume was expressed by folk costume style. Anti fashion was expressed by anti aesthetics in fashion such as kitch, punk, and hippie styles. Post-human was expressed by futurism and the 4th Sex style in fashion. Mixing mode were expressed by mixture of item, and unmatched materials and pattern in fashion. Mixture of style were expressed by mixture of pastiche expression of various styles.

• 한국미생물·생명공학회지
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• 제19권6호
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• pp.619-623
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• 1991

Lactococcus lactis ssp. lactis ML8(L.lactis ML8)의 nisin 생산과 저항 특성을 구명하기 위하여 배지의 종류 및 pH가 nisin의 역가에 미치는 영향, 균체의 생육에 따른 nisin의 생산특성, nisin이 균체생육에 미치는 영향 및 $Ca^[2+}$ 이온의 존재가 균주의 nisin 저항성에 미치는 영향을 조사하였다. Nisin의 역가를 Micrococcus flacus에 대하여 항생효과를 나타내는 성질을 이용하여 agar diffusion법으로 측정하였을 때, M.flavus 생육에 대한 저해직경은 nisin 농도 (0.5`20 unit/ml)의 log치에 비례하였다.

• 한국패류학회지
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• 제32권2호
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• pp.83-93
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• 2016

For the continuous stable production of oyster, estimation of food availability (F) was carried out in Goseong Bay, south of coast Korea. Primary productivity ranged from 0.07 to $0.44gC/m^2/day$ (average $0.25gC/m^2/day$), lowest in July and highest in January. The distribution of primary productivity at Goseong Bay showed the pattern of "high in the south and low in the north." Food availability (F) was $F{\leq}0$, indicating insufficient food supply, from August to November and F > 0 from January to April. Continuous insufficient food supply was observed at 18 oyster farms in the southern part of the bay and 4 in its northern part. Mortality at the oyster farms was 56% on the average, and around 58% of death occurred during November when food supply was insufficient. The optimal population of cultured oyster per unit flow area was calculated to be $110-115indiv./m^2$ (198-201 indiv./string). When the sea area was divided into 3 regions (A, B, C) according to carrying capacity, the carrying capacity of (A) regions was $52-53indiv./m^2$ (93-95 indiv./string), (B) regions was $142-144indiv./m^2$ (255-259 indiv./string), and (C) regions was $198-202indiv./m^2$ (356-363 indiv./string). In particular, (A) regions showed extremely low productivity. For continuous stable oyster farming at Goseong Bay, it is necessary to control point and non-point source pollution through continuous environmental monitoring and to adjust harvest according to the base carrying capacity during the season of high water temperature.