• 한국식품조리과학회지
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• 제13권3호
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• pp.338-347
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• 1997

The acceptance and dining behavior of Taegu residents for western foods were surveyed through the questionnaire to provide basic information for the diet improvement. The results were as follows: 1. The preliminary test showed that 19 western foods had high preference among them in the order of ice cream, fried chicken, fried potato, coffee, salad, pizza, soup, pork cutlet, hamburger sandwich, hamburger steak, potato croquette, curry rice, omelet rice, beef steak, spaghetti, com flakes, hashed rice, and omelet. Although a diversity was observed depending upon the age groups, the persons in their thirties generally had high preference on most western foods. 2. The recognition types of housewives to the western food were grouped into the merits of meal, disadvantages of meal, nutritive values, and cooking convenience. In order to have western food, 54.5% of the respondents went to restaurants, mainly family restaurant, however, the level of frequency was very low.

• 한국표면공학회지
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• 제51권4호
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• pp.202-206
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• 2018

Permalloy($Ni_{80}-Fe_{20}$) which is known for its soft magnetic properties is a well-known material that has been studied intensively. Permalloy nanoflakes were fabricated with the combination of electrodeposition and sonication process. Ultrasonic power was applied to the deposited alloy which produced nanoflakes in forms of sheet. High internal stress created cracks which helped the peeling of permalloy into nanosheets. Because of shape anisotropy, flakes could be aligned by magnetic field. The magnetic properties of the nanosheets were observed, and the variation of magnetic properties with the alignment of flake was also investigated.

• 방사선산업학회지
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• 제8권2호
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• pp.83-88
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• 2014

Application of X-ray irradiation of dried condiments was studied using commercially prepared dried garlic, onion and welsh onion flakes as model samples. Total load of aerobic microbes (TAM), color differences, and generation of off-flavor were quantified for samples individually irradiated with gamma rays, electrons, or X-rays. TAM load was decreased by irradiation in a dose-dependent manner. The three types of radiation did not differ in the extent of TAM reduction (P>0.05). The samples did not differ in color. Off-flavor was detected from 6 kGy-irradiated samples, regardless of radiation sources. The results indicated that X-ray irradiation could be used for irradiation of dried condiments with the same effects as gamma rays and an electron beam.

• Current Optics and Photonics
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• 제4권4호
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• pp.353-360
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• 2020

Adopting an elaborately designed reflective objective consisting of four mirrors, we have developed a rotating-polarizer-type microspot spectroscopic ellipsometer (SE) with an ultra-small spot size. The diameter of the focused beam, whether evaluated using a direct-image method or a knife-edge method, is less than 8.4 ㎛. After proper correction for the polarizing effect of the mirrors in the reflective objective, we unambiguously determine the dispersion of the complex refractive index and the thickness of monolayer MoS₂ using the measured microspot-spectroellipsometric data. The measured ellipsometric spectra are sensitive enough to identify small variations in thickness of MoS₂ flakes, which ranged from 0.48 nm to 0.67 nm.

• 한국산업융합학회 논문집
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• 제26권5호
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• pp.751-756
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• 2023

In this study, We investigated a fire case and performed an experiment to prevent fire from sparks that is generated during grinding operation. Before conduct the test, confirmed that the generating mechanism of fire-flakes in working grinder and the fire experiment was conducted using commonly tools, flammable materials in industrial field. in result, It could be measured scattering distance, temperature, ignition possibility by type of combustible materials. Based on the results of this study, We are expected to be used as basic data for fire prevention in grinding Industry.

• 한국식품과학회지
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• 제39권2호
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• pp.146-151
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• 2007

고식이섬유 쌀인 고아미 2호의 식품소재로서의 활용을 모색하고자 압출성형공정으로 고아미 후레이크를 제조한 다음 후레이크의 효소저항전분(RS) 함량, 페이스트 점도, 수분용해지수와 수분흡착지수, 체적밀도, 색도, 압착강도, 조직감 유지시간 등 품질 특성을 조사하였다. 압출성형 공정조건은 배럴온도 90, 110, $130^{\circ}C$ 그리고, 수분함량 50, 55%이었다. 압출성형 펠릿과 탈지한 후레이크의 RS함량은 각각 $8.00{\sim}8.56%$, $6.57{\sim}9.53%$ 범위로 수분함량이 50%에서 55%로 증가함에 따라 증가하는 경향을 나타내었다. 압출성형 펠릿과 탈지한 후레이크의 최고점도, 최저점도, 최종점도, 회복점도는 1시간 수침한 고아미에 비해 감소하는 경향을 나타내었고 구조파괴점도는 현저히 증가하는 경향을 나타내었다. 탈지한 후레이크의 수분용해지수와 수분흡착지수가 고아미 원료와 압출성형 펠릿보다 크게 증가하는 경향을 나타내었다. 압출성형 펠릿의 수분용해지수는 고아미 원료에 비해 감소하는 경향을 나타내었으며 수분흡착지수는 증가하는 경향을 나타내었다. 후레이크의 체적밀도는 $0.35{\sim}0.44$ g/mL 범위로 큰 차이를 나타내지 않았고 조직감 유지시간은 $12.4{\sim}19.4$분 범위로 시판 breakfast cereal들 보다 긴 유지시간을 나타내었다.

• 한국잡초학회지
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• 제12권4호
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• pp.352-361
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• 1992

논조류(藻類)의 생태적(生態的) 특성(特性) 및 효율적(效率的)인 방제법(防除法) 구명(究明)에 필요(必要)한 기초자료(基礎資料)를 얻기 위하여 1991년 논 또는 용배수로(用排水路) 등(等)에 많이 발생(發生)하는 윤조류(輪藻類), 이앙후(移秧後) 논물에 수화현상(水花現像)을 일으키는 유그레나류(類) 및 벼 직파재배(直播栽培) 논에서 괴불을 일이키는 규조류(硅藻類)를 동정(同定)하여 다음과 같은 결과(結果)률 얻었다. 1. 논에 발생(發生)하는 윤조류(輪藻類)로서 윤조식물문(輪藻植物門(Charophyta) 쇠뜨기말과(科)(Characeae)로 분류(分類)되는 쇠뜨기말(Chara braunii) 1종(種)이 동정(同定)되었다. 2. 논에 발생(發生)하는 유그레나류(類)에는 유그레나과(科)(Euglenaceae)로 분류(分類)되는 유그레나 2종(種), 파쿠스 1종(種), 트라케로모나스 3종(種)이 동정(同定)되었다. 3 논발생(發生) 규조식물문(硅藻植物門)(Bacillariophyta)에는 체 모양원반과(圓盤科) 5종(種), 띠돌말과(科) 3종(種), 아크난테스과(科) 1종(種), 깃돌말과(科) 9종(種), 킴벨라과(科) 1종(種), 니트찌아과(科) 2종(種) 등(等) 총(總) 6과(科) 13속(屬) 21종(種)이 동정(同定)되었다. 4. 논 수면(水面)에 나타나는 적색(赤色) 수화현상(水花現像)은 포배형성기(胞裵形成期)의 유그레나 다발생(多發生)에 기인(起因)하였다. 5. 논토양(土壤)에 발생(發生)하는 갈색(褐色) 괴불에는 우상규조목(羽狀硅藻目)에 속(屬)하는 규조류(硅藻類)가 우점(優占)하고 있었다.

• 한국잡초학회지
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• 제12권2호
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• pp.166-172
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• 1992

전국(全國) 논에 발생(發生)하는 부유성(浮遊性) 남조류(藍藻類)와 토양중(土壤中)에 서식(棲息)하면서 괴불 등(等)을 일으키는 남조류(藍藻類)를 1991년(年) 채집(採集) 동정(同定)하여 다음과 같은 결과(結果)을 얻었다. 1. 논에 서식(棲息)하는 남조중(藍藻中)에서 남조식물문(藍藻植物門)(Cyanophyta)으로 분류(分類) 동정(同定)된 종(種)은 소구체과(小球體科)(Chroococceaceae) 7종(種), 카마에시폰과(科)(Chamaesiphonaceae) 1종(種), 플레우로캅사과(科)(Pleurocapsaceae) 1종(種), 염주말科(Nostocaceae) 6종(種), 흔들말과(科) (Oscillatoriaceae) 5(종)種으로서 총(總) 5과(科)14속(屬) 20종(種)이었다. 2. 논에 서식(棲息)하며 질소(窒素) 고정능력(固定能力)이 있는 남조류(藍藻類)로서 Cylindrospermum, Anabaenopsis, Anabaena, Nostoc 등(等) 4속(屬) 6종(種)이 동정(同定)되었다. 3. 남색(藍色)을 띄는 괴불에는 사상(絲狀) 남조류(藍藻類) gms들말(Oscillatona) 등(等)이 주종(主種)을 이루고 있었다. 4. 단세포성(單細胞性) 남조류(藍藻類) Chamaesiphon은 서산(瑞山) 간척지(干拓地)에 많이 발생(發生)하는 Cladophora 등(等)에 부착생활(附着生活)하고 있었다. 5. Spirulina와 Oscillatona는 특유(特有)한 방법(方法)의 운동성(運動性)을 가지고 있었다.

• 한국분말재료학회지
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• 제16권6호
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• pp.424-430
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• 2009

Electromagnetic wave energies are consumed in the form of thermal energy, which is mainly caused by magnetic loss, dielectric loss and conductive loss. In this study, CNT was added to the nanocrystalline soft magnetic materials inducing a high magnetic loss, in order to improve the dielectric loss of the EM wave absorption sheet. Generally, the aspect ratio and the dispersion state of CNT can be changed by the pre-ball milling process, which affects the absorbing properties. After the various ball-milling processes, 1wt% of CNTs were mixed with the nanocrystalline $Fe_{73}Si_{16}B_7Nb_{3}Cu_1$ base powder, and then further processed to make EM absorption sheets. As a result, the addition of CNT to Fe-based nanocrystalline materials improved the absorption properties. However, the increase of ball-milling time for more than 1h was not desirable for the powder mixture, because the ballmilling caused the shortening of CNT length and the agglomeration of the CNT flakes.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.163.2-163.2
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• 2010

In this work, nano-flake shaped nickel oxide (NiO) films were synthesized by chemical bath deposition technique for electrochemical capacitors. The deposition was carried out for 1 and 2 h at room temperature using nickel foam as the substrate and the current collector. The structure and morphology of prepared NiO film were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). And, electrochemical properties were characterized by cyclic voltammetry, galvanostatic charge-discharge, and AC impedence measurement. It was found that the NiO film was constructed by many interconnected NiO nano-flakes which arranged vertically to the substrate, forming a net-like structure with large pores. The open macropores may facilitate the electrolyte penetration and ion migration, resulted in the utilization of nickel oxide due to the increased surface area for electrochemical reactions. Furthermore, it was found that the deposition onto nickel foam as substrate and curent collector led to decrease of the ion transfer resistance so that its specific capacitance of a NiO film had high value than NiO nano flake powder.