• YAKHAK HOEJI
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• v.13 no.1
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• pp.38-42
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• 1969

Chloropentammine chromium(III) chloride를 출발물질로 하여 여러가지의 thiocyanatoammine계 착화합물을 합성하는 실험에 있어서 그 수득량이 예상보다 매우 적고 그 염의 모액이 농적자색이라는 점으로 보아 그 모액중에 어떠한 다른 착화합물이 다량 형성되어 있으리라고 추측하여 그 분리를 시도하였다든바 미려한 적자색의 결정을 얻었다. 그리고 분석에 의하여 이 물질이 potassium hexathiocyanatochromate(III) 임을 증명하였다. Cr$^{+++}$ 의 thiocyanate 착화합물형성에 관하여는 Niel Bjerrm$^{(8)}$에 의한 보고문이 있고 또 이들의 제법으로서는 Roesler$^{(9)}$들에 의하여 Potassium chromium alum에서부터 이 물질을 만드는 방법만이 보고되어 있을뿐이다. 따라서 Chloropentammine chromium(III) chloride에서 부터 이 물질을 만드는 이 새로운 방법이 이러한 화합물들의 제법으로서 앞으로 이용될 수 있는것으로 사료한다. 제조 방법: Chloropentammine chromium(III) chloride 3g을 KSCN 24g, 빙초산 24ml및 물 48ml의 혼합수용액에 현탁시킨 혼합물을 처음에는 잘 교반하면서 가온하고 다음 완전히 용해될때까지 끊인다. 냉각시킨 다음 생성된 증황색의 침반 Thiocyanatopentammine chromium(III) thiocyanate를 여과하고 여액 65ml에 KSCN 50g을 추가하여 완전용해시킨다. 이 용액을 방냉시키면 적자색의 미려한 결정이 석출되므로 이 결정을 여과하여 ethanol로 세척하고 진공 desiccator중에서 건조시켰다. 수득량 1.2~1.3g.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.01a
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• pp.197-198
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• 2017

현대사회는 인구의 증대에 따른 교통, 건물 그리고 환경등 여러 가지 분야에서 눈부신 발전을 거듭하고 있다. 하지만, 거주환경이 발전하면서 나타나는 소음을 저감하고자 본 논문에서는 간이 흡음재인 계란판의 흡음특성을 3가지 환경에서 측정한 데이터를 비교분석하였다. 실험을 하기위해 가로, 세로, 높이1000mm의 정사각형 상자를 만들어 진행하였다. 실험은 간이 흡음재 부착, 미부착 그리고 방음실에서 음원을 각각 5회씩 재생시킨 후 잔향시간을 측정하여 비교분석하였다. 그 결과, 간이흡음재 미부착시 평균0.413초, 부착시 평균0.330초 그리고 방음실에서 평균0.319초의 데이터를 얻었다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 1998.11a
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• pp.116-120
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• 1998

난방.공조공간에서는 강한 기류가 Draft를 유발한다. Draft라 함은 인체가 기류(Air Movement)에 의해 원하지 않은 국부적인 냉각효과를 받는 것을 말한다(ASHRAE). 본 연구에서는 피험자의 체감실험을 통해 겨울철 대류난방시 실온 설정조건에 대한 기류속도의 허용범위을 찾고자 .하였다. 피험자는 일정 유니폼을 착용하고 의자에 앉은 상태로 실온 18.21.24$^{\circ}C$, 풍속 0.15.0.3.0.45m/s의 조건에서 기류감, 온냉감, 쾌불쾌감을 신고하였다. 실험시 착의량은 남자 0.7, 여자 1.0 clo이었으며, 실온이 21$^{\circ}C$일 때는 기류속도 0.15m/s까지, 실온이 24$^{\circ}C$일 때는 기류속도 0.3m/s까지 허용범위에 포함되었다.

• Horticultural Science & Technology
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• v.34 no.3
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• pp.424-432
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• 2016

This experiment was carried out to compare growth and fruit setting characteristics in ten winter-planted paprika (Capsicim annuum L.) cultivars. Five red line paprika cultivars ('Maduro', 'Maranello', 'Nagano', 'Sirocco' and 'Special') and five yellow line paprika cultivars ('Coletti', 'Sven', 'Thialf', 'Volante' and 'Zagato') were used for this study. The experiment was performed for 42 weeks, from winter of 2013 to autumn of 2014. Based on the growth stages of paprika, growth characteristics were investigated six times, and each investigation was categorized from group 1 through group 6. The relative internode ratio showed a normal range at the early growth stage, but tended to gradually decline as growth progressed. This trend was greater in red line paprika than in yellow line paprika. Among the cultivars used for this experiment, 'Special' and 'Zagato' showed growth inhibition, whereas 'Maranello' and 'Volante' kept a balanced growth during summer cultivation. The fruit set percentage in yellow paprika was 10.8% higher than in red paprika, while the number of branches in yellow paprika was 4.1% less than in red paprika. When measured after the full fruiting age, from June to July, the number of fruit set in group 4 was much lower in 'Sirocco' and 'Coletti' than in any of the other cultivars, indicating that they were more sensitive to the growth environment during the rainy season. These findings suggest that 'Maranello', 'Nagano', 'Sven', 'Thialf', and 'Volante' could be effectively used for summer cultivation in a high-plastic-film greenhouse, and 'Maranello', 'Special', 'Volante', and 'Zagato' could be good candidates for a low-plastic-film greenhouse.

• Journal of the Korea institute for structural maintenance and inspection
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• v.10 no.4
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• pp.119-126
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• 2006

This paper presents the results of a test program for flexural strengthening characteristics of continuous unidirectional carbon-fiber sheets bonded or/and developed to reinforced concrete (RC) beams. A total of six $150mm{\times}250mm{\times}2000mm$ concrete beams were tested. Various sheet development locations were studied to determine their effects on the ultimate flexural strength of the beams. From the test, it was found that the strength increases remarkably with the development of sheets at shear bar. Among the various location, multi-developed sheet provided the most effective strengthening for concrete beam. Beam strengthened using this scheme showed 53% increase in flexural capacity as compared to the control beam without any strengthening.

• Journal of Korea Multimedia Society
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• v.13 no.7
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• pp.1016-1022
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• 2010

Far-talking recognition and distributed speech recognition networking techniques are essential to control various and complex home services conveniently with voices. It is possible to control devices everywhere at home by using only voices. In this paper, we have developed the server-client DSP module for distributed speech recognition network system and proposed a new decision rule to decide intelligently whether to accept the recognition results or not by the transferred confidence rate. Simulation results show that the proposed decision rule delivers better performances than the conventional decision by majority rule or decision by first-arrival. Also, we have proposed the new interrupt-polling technique to remedy the defect of existing delay technique which always has to wait several clients' results for a few seconds. The proposed technique queries all client's status after first-arrival and decides whether to wait or not. It can remove unnecessary delay-time without any performance degradation.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.2 s.150
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• pp.207-220
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• 2006

The purpose of the study is to develop the basic pattern of casual jacket for men aged between 25 and 34. Compared to the tailored jackets, casual jackets are designed much more diverse form depending on the target customer, price range and moreover fashion trend. Therefore in order to reduce the cost and time of developing new style, pattern draft from the basic pattern is better approach rather than develop each style form the measurements every time. For men's casual jacket pattern draft, the basic pattern of fit and comfort was developed through following research procedures. 173 men were surveyed about their habit of buying and wearing of casual jackets. MDs and pattern designers of 10 casual wear brands for men were interviewed. As a starting point, 3 different basic patterns were selected. 2 patterns were from the 2 interviewed brands and the last one was the pattern of ESMOD. The 3 patterns were studied by means of comparing measurements and general styling. As a results it was found that the pattern of S brand is featuring I silhouette, the pattern of K brand is featuring H silhouette and the pattern of ESMOD is featuring Y silhouette. The results of wearing test showed that the pattern of S brand is the best among the three. They were to add ease around the chest line and waist line, to relocate the waist line and the break point, to increase the jacket length and upper arm width. The improved pattern was made of polyester for the wearing test. The wearing test showed developed pattern was improved significantly. To verify the use of developed basic pattern, two buttoned single jacket was made.

• Fashion & Textile Research Journal
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• v.19 no.1
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• pp.90-100
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• 2017

In this research, consumer awareness investigation and wearing test were carried out for obtaining useful data on the development of thermo-sensitive functional clothing material. A survey involved 216 people in Seoul and Kyeonggi-do, and 200 questionnaires data were analyzed by descriptive statistics and frequency using SPSS 17.0. Four healthy men in twenties were participated for wearing test. Subjects in normal loungewear were exposed to temperature change from the initial temperature $30^{\circ}C$ down to $5^{\circ}C$ for an hour in a climate chamber. The environmental temperature, surface temperature of garment and skin were measured. As a result, most of respondents have all season clothing products such as underwear, hosiery, and jogging suit for loungewear. Also, thermo regulator y functional clothes are frequently used as underwear and sweat shirt. The consumer awareness investigation on thermo regulatory functional clothing showed that the most important key buying factor is quick climate temperature response, easy maintenance, design and cost, in that order. Surface temperature of garment went down with the cooling down of environmental temperature. The lower environmental temperature, the greater temperature difference by body part showed. Skin temperature change by environmental temperature showed similar tendency of garment surface temperature. In comparison between garment surface and body skin, temperature difference became larger under the lower environmental temperature.

• Applied Chemistry for Engineering
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• v.17 no.3
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• pp.280-285
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• 2006

Adsorption characteristics of $H_{2}S$ on KOH impregnated activated carbon were evaluated using dynamic adsorption method in a fixed bed. The pore properties, including BET's specific surface area, pore volume, pore size distribution, and mean pore diameter of these KOH impregnated activated carbons, were characterized from $N_{2}$ adsorption/desorption isotherms. Adsorption equilibrium data were correlated with Langmuir and Freundlich isotherms. The adsorption of $H_{2}S$ onto the KOH impregnated activated carbon is better fitted by the Langmuir isotherm. An increase in the content of oxygen affects the performance of KOH impregnated activated carbon to the greatest extent.

• Journal of the Korea Society of Computer and Information
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• v.25 no.5
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• pp.107-116
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• 2020

The purpose of this study was to compare the pattern of two men's pants for education and two for industry, and to analyze the patterning method that is most suitable for the body shape of middle-aged men. As a result of appearance evaluation for 3D simulation, J pattern was evaluated as the best in most items, and H pattern was analyzed to be the most inappropriate. As a result of measuring the airgap, all four patterns of the waist circumference were evaluated to have very small airgap, and the J pattern had the smallest airgap for the pants. J pattern was analyzed as the most suitable pattern for middle-aged men's body shape by synthesizing the appearance evaluation of virtual wear, color distribution, sectional view, airgap, etc. However, in the case of J pattern, it was analyzed that the pants length needs to be modified. Since this study compared and analyzed only two patterns for education and two for industry, it is thought that the development of pants for middle-aged men should be developed through actual wearing experiments with J patterns.