피싱 모의훈련 시스템에서 훈련콘텐츠의 동적 및 정적 맞춤화 서비스

이한철,김태성 한국경영정보학회 2023 한국경영정보학회 학술대회논문집 Vol.2023 No.11

본 연구는 일반인에게도 피싱 모의훈련 서비스를 제공하기 위한 새로운 서비스 및 시스템 모형을 제시한다. 피싱 피해는 재직자, 일반인을 가리지 않고 모두에게 발생하기 때문이다. 기존 피싱 모의훈련 시스템이 특정 조직만을 위해 모의훈련 서비스를 폐쇄망에서 제공했다면, 제안모형은 모든 일반인을 대상으로 모의훈련 서비스를 온라인으로 제공한다. 또한, 제안모형에는 기존 훈련시스템의 일괄적인 훈련콘텐츠, 단발성 수행으로 인한 훈련 효과성 및 참여율 저조를 보완한다. 각 참여자의 주제에 맞는 정적 맞춤화된 훈련콘텐츠 제공, 참여자의 훈련결과 정보로 적절한 콘텐츠를 부여하는 동적 맞춤화된 훈련콘텐츠 제공으로 효율적이고 효과적인 훈련기법을 적용하였다. 제안된 모형의 구현 가능성, 효율성, 효과성 입증을 위해 제안모형의 일부 구현 후, 일반인 118명을 모집하여 실험군 60명과 대조군 58명으로 나눠 모의훈련을 실시한 결과, 제안된 모형의 구현 가능성, 효율성, 효과성을 확인하였다. 온라인 구축을 통해 구현 가능성을 확인할 수 있었고, 제안모형이 제공하는 훈련참여자 맞춤형 훈련콘텐츠를 통해 훈련 참여자의 관심을 끌어 효율적인 훈련을 유도함을 확인하였다. 또한, 재훈련의 효과성을 확인할 수 있었다. 또한, 제안모형의 비즈니스모델을 수립하여 지속운영 가능한 서비스를 제안하고자 한다. 이를 통해 일반인도 피싱 모의훈련 서비스를 제공받아 일반인의 피싱 예방능력 강화를 통한 피싱피해 감소를 기대할 수 있다.

Reduced Glutathione의 마우스 大腦組織內 移動에 關하여

李漢喆,朱永恩 慶北大學校 醫科大學 1973 慶北醫大雜誌 Vol.14 No.2

NaCl 스트레스가 토마토, 고추, 가지의 생육, 광합성 속도 및 무기양분 흡수에 미치는 영향

이한철,강경희,최영하,권기범,김희태 (사) 한국생물환경조절학회 2002 생물환경조절학회지 Vol.11 No.3

This study was conducted to investigate the effects of NaCl concentrations on the growth, photosyn-thetic rate and mineral uptake of tomato, red pepper, and egg plant in pot culture. The growth such asplant height, plant fresh and dry weight, root fresh and dry weight and dried matter rate wasdecreased as NaCl concentrations were increased. Specially, the growth inhibition of tomato and eggplant was shown at over 40 mM NaCl, and that of red pepper at 20 mM NaCl. Yield of tomato andegg plant was reduced at over 20 mM NaCl, that of red pepper at over 10 mM NaCl. Yield reductionwas affected by the number of fruit at low concentration and by mean weight and number of fruit athigh concentration. Photosynthetic rate, water potential and stomatal conductance were decreased asNaCl concentrations were increased. The higher the concentration of NaCl, the lower the mineraluptake such as T-N, P, K, Ca and Mg, however, the higher the content of Na and Cl.

토양에의 고농도 Na 및 Cl 염류가 토마토의 생육 및 무기성분 흡수에 미치는 영향

이한철,강경희,최영하,권기범,김희태 (사) 한국생물환경조절학회 2002 생물환경조절학회지 Vol.11 No.3

This study was conducted to investigate the effect of high concentration of sodium salts and chlo-rides in soil on the growth of tomato and the uptake of minerals. The growth inhibition rates of plantheight and dry weight were different depending on salts, but they were not related to the electric con-ductivities (EC) and acidities (pH) in the soil solution. The orders of growth inhibition were Cl, SO4,CO3, PO4 > NO 3 in the sodium salts series, and Na, K, Mg, NH4 > Ca in the chlorides. The growthinhibition rates of the sodium salts series tended to be larger than those of the chloride series. Yieldwas lower 30%~10% in the sodium salt and chloride series than in the control. Chlorophyll content,photosynthetic rate and stomatal conductance were lower in the sodium salts and chloride series thanin the control. Mineral concentration was lower in sodium salts and chlorides than in control. Thenitrate absorption was inhibited in all salts except for NaNO3 and NH 4Cl, and specially in NaCl andNa2SO4 treatments of the sodium salts and in KCl treatment of chloride series. K concentration wasreduced NaCl and Na2SO4 treatments compared with the other salts. In the sodium salt series, cal-cium and magnesium concentration were decreased antagonistically when sodium concentration wasincreased.

여름철 파프리카 관비재배시 토양수분포텐셜이 과실품질 및수량에 미치는 영향

이한철,최경이,정재완,조명환,여경환,김다미,안철근,이동열 (사) 한국생물환경조절학회 2013 생물환경조절학회지 Vol.22 No.4

This study was conducted to identify the effect of soil water potential on the fruit quality and yield of paprika in summer fertigation cultivation. Treatments of soil water potential during cultivation were composed of −10, −20, and −30 kPa, respectively. The plant height of early growth was increased by high soil water potential (−10 kPa) treatment all of ‘Cupra’ and ‘E499524’ (mini-paprika) varieties. Mean fruit weight was increased by −20 kPa soil water potential treatment compared with the other treatments. The fruit number per plant was not affected by soil water potential in ‘Cupra’ variety but was increased by −20 kPa soil water potential treatment in E499524 variety (mini-paprika). The yield of soil water potential treatment of −20 kPa was higher than those of the other treatments. The flesh thickness and sugar content were not affected by soil water potential in ‘Cupra’ and ‘E499524’ (mini-paprika) varieties. The incidence of fruit cracking was decreased with decreasing soil water potential. Mineral contents of plants such as nitrogen, potassium, calcium, magnesium etc. were not affected in soil water potential. 파프리카의 토양재배면적 증가에 따라 관비재배법의확립이 요구되고 있다. 관비재배(Fertigation)는 물과 양분을 함께 공급하는 방법으로 작물의 수분과 양분의 과부족에 의한 장해없이 근권을 안정적으로 유지할 수 있다. 본 연구에서는 시설 파프리카의 관비재배시 토양수분포텐셜에 따른 과실 품질 및 수량의 효과를 구명코자실험을 수행하였다. ‘쿠프라’ 및 ‘E499524’ 2품종을 공시하여 정식 후부터수확기까지 토양수분포텐셜을 −10, −20 그리고 −30kPa 로 처리구를 두었다. 초장은 토양수분포텐셜이 높은−10kPa 처리구가 가장 길었다. 과실의 평균 과중은 ‘쿠프라’ 품종에서는 평균과중은−20kPa에서 154.5kg으로 가장 무거웠으며 토양수분포텐셜이 낮은 −30kPa에서는 138.2kg으로 가벼웠다. 주당착과수는 5.1~5.3개로 ‘쿠프라’ 품종은 토양수분포텐셜에따른 차이가 없었으나 ‘E499524’ 품종은 −20kPa 처리구에서 10.3개로 가장 많았다. 상품수량은 ‘쿠프라’ 품종은−20kPa 처리구에서 2,321kg/10a로 가장 많았고 그리고‘E499524’ 품종은 −20kPa 처리구에서 1,147kg/10a로 가장 많았다. ‘쿠프라’ 품종에서는 과장과 과폭은 토양수분포텐셜에따른 차이가 없었으나 ‘E499524’ 품종은 토양수분포텐셜이 낮을수록 작은 경향을 보였다. 과실의 당도는 ‘쿠프라’ 품종에서는 4.4~4.9oBrix, 그리고 ‘E499524’ 품종에서는 7.6~8.3oBrix로 토양수분포텐셜에 따른 통계적유의차가 없었다. 자방수는 ‘쿠프라’ 품종에서는 3.3~3.6개, 그리고‘E499524’ 품종에서는 2.5~2.7개로 토양수분포텐셜 간에유의차이가 없었다. 과실의 열과 발생율은 ‘쿠프라’ 및‘E499524’ 품종 모두 토양수분포텐셜 낮을수록 적은 경향을 보였다. 식물체 내 질소의 함량은 토양수분포텐셜에 따른 차이가 없었으며 ‘쿠프라’ 품종은 2.10~2.22%였고 ‘E499524’품종은 1.72~1.82%였다. ‘쿠프라’ 및 ‘E499524’ 품종 모두 토양수분포텐셜에 따른 식물체의 칼륨, 칼슘, 마그네슘 등 무기 양분의 함량은 유의차이가 없었다. 이상의 결과에서 파프리카의 여름철 관비재배시 토양수분포텐셜을 −20kPa로 설정하는 것이 생육이 가장 좋은 것으로 판단되었다.

Reduced Glutathione의 마우스 大腦組織內 移動에 關하여

李漢喆,朱永恩 慶北大學校 醫科大學 1973 慶北醫大誌 Vol.14 No.2

Reduced glutathione (GSH)의 組織細胞內로의 移動樣相의 一端을 알고져 마우스 大腦의 切片을 作成하고 이것을 1mM, 2mM 및 3mM의 GSH溶液中에 둔後 4C, 25C 및 37C의 溫度下에서 incubate 하고 incubation中 5, 15, 30, 60 및 120分에서 各各 組織內의 GSH 및 GSSG(oxidized glutathione)을 定量하고 이 兩者의 合計로서 總 SH基(sulfhydryl)의 量으로 하여 正常群 및 對照群의 그것과 比較한 結果 다음과 같은 結果를 얻었다. 1) 正常 마우스 大腦組織의 GSH, GSSG 및 總 SH基의 量은 各各 2.33±0.26, 1.72±0.27, 및 4.05±0.27μmol/gm wet. wt.이었다. 2) 大腦組織이 GSH 및 GSSG의 量은 incubation의 溫度가 4C 및 25C에서는 incubation溶液中의 GSH의 濃度와 無關하게 時間의 經過에 따라 큰 差異가 없었고 正常群 및 名對照群의 그것과 比較해서도 서로 비슷한 傾向을 나타내었다. 3) 37℃에서 incubate 하였을 때의 大腦組織의 GSH, GSSG 및 總 SH基의 量은 incubationd溶液中의 GSH濃度에 比例하여 增加하였고 또한 實驗時間 120分까지 繼續 增加되는 傾向을 나타내었다. Glutathione, atripeptide abundantly distributed among the animal and plant world, is known to exert some important physiological actions in the body, il e. ; paticipation in various enzymatic reaction, membrane tarnsport and action mechanism of some peptide hormones. Also, the effectiveness of reduced glutathione (GSH) ofr radioprotection has recently been established. However, reports on the transport mechanism of GSH through the cell membrance is scanty, and little is known whether GSH is transported through the cell membrane by active transport or facilitated diffusion, or otherwise. In the present study, an effort was made to observe the transport mechanism of GSH by using the brain tissue of the mouse as the model. Whole brain was carefully removed from the normal mouse, and the brain slice of approximately 0.2mm in thickness was prepared manually. The slice was incubated in the solution of GSH in the concentration of 1mM, 2mM, and 3mM temperature of the incubation was set at 4C, 25C and 37C. At 5, 15, 30, 60 and 120 min of the incubation, the slice was taken out and carefully washed with Krebs-Ringer phosphate buffer (KRP). GSH level ws measured by Ellman's method and GSSG (oxidized glutathione) was measured by the electrolytic reduction method described by Dohan and Woodward. The total SH (sulfhydryl) group was claculated by the sum of GSH and GSSG. The control was set in each temperature group, in which the experimental procedures were identical as in the experimental groups but the incubation was carried out in the absence of GSH and only in KRP. Results thus obtained are summarized as follows. 1) Normal value of GSH, GSSG and total SH group of the mouse brain was 2.33±0.26, 1.72±0.27 and 4.05±0.27μmol/gm wet. wt., respectively. 2) When the incubation was carried out at 4C and 25C, GSH and GSSG levels of the mouse brain were similar in all the groups including the normal and control regardless of the concentration of GSH throughout the entire experiment. 3) When the incubation temperature was set at 37C, the levels of GSH, GSG and total SH group increased in proportion to the concentration of GSH, and the increase was continuous till 120 min.

겨울철 토마토 2단밀식 펄라이트경에서 야간 근권 온도가 토마토의 생육 및 수량에 미치는 영향

이한철,강경희,최영하,권기범 (사) 한국생물환경조절학회 2001 생물환경조절학회지 Vol.10 No.1

This experiment was undertaken to investigate the effect of root zone temperature during the nighton absorption of mineral nutrients, growth, and fruit yield of the truss-limited hydroponic tomatoes inwinter. The root zone temperature was either controlled to 10, 15, 20, 25oC, or left uncontrolled atambient temperatures. Temperature of the covered beds rose as root zone temperature was raised, butit in all treatments was less than 3oC higher than that in the control. Raising root zone temperature,except 25oC, showed positive effect on plant height, leaf length, stem diameter, and plant fresh and dryweights, but not on T/R ratio which was the greatest in the control. Root activity in all treatmentsexcept 25oC increased as compared to the control. Mean fruit weight, fruit count per plant, and fruityield were the greatest in 20oC treatment. Root zone temperature did not significantly affect the con-tents of total nitrate and magnesium in leaves, stems and roots. Concentrations of phosphate and cal-cium increased in leaves and stems, but decreased in roots as root zone temperature increased.Overall, 20oC treatment gave the greatest growth and energy efficiency.

소아간질(小兒癎疾)의 병원병리(病因病理)에 관(關)한 문헌적(文獻的) 고찰(考察)

이한철,박은정,채중원,김덕곤,Lee, Han-Cheol,Park, Eun-Jeong,Chae, Jung-Won,Kim, Deok-Gon 대한한방소아과학회 1990 대한한방소아과학회지 Vol.4 No.1

인체 근육 구조를 적용한 남성 테일러드 재킷 디자인

이한철,이연희 복식문화학회 2018 복식문화연구 Vol.26 No.6

This study suggests a new perspective for designing men’s tailored jackets by more carefully considering human muscle structure. For this study, we examined research regarding the construction of the tailored jacket that is based on costume history references, as well as research regarding human muscle structure that is based on human anatomy references and the analysis of recent fashion designs illustrating the human body image. Based on this research, we developed various tailored constructions that account for human muscle structure. These constructions are applied primarily to the backs of four tailored jackets, as the back of the jacket needs a mechanism to accommodate the wearer’s movement. The following conclusions have been derived from the study: First, by developing the tailored garment structure that accounts for the muscle structure of the human body, we suggest a new design direction for tailored garments. Second, we propose a new type of tailored jacket structure for the back of the jacket that incorporates an artificial muscle structure to accommodate the wearer’s activities. This new type of jacket indicates the potential for designs that use structure, particularly the structure of the human body. Finally, by using the embroidery technique, we changed the texture of the material into the shape of human muscle. Thus, we propose a design that uses three-dimensional volume to accounts for the shape of human body tissue.

HACCP 의무적용 식품 및 소규모 HACCP 제도 개선방안

이한철,박민지,오도경,김찬영,정은선,김채영,임지유,김중범,Lee, Han-Cheol,Park, Min-Ji,Oh, Do-Gyung,Kim, Chan-Yenog,Jeong, Eun-Sun,Kim, Chea-Young,Im, Ji-Yu,Kim, Jung-Beom 한국식품과학회 2022 식품과학과 산업 Vol.55 No.3

As a result of analyzing the domestic and foreign HACCP systems, advanced countries mandated HACCP system on all foods to strengthen food safety management and USA, EU and China do not apply small-scale HACCP system. Looking at the cases of food safety accidents in Korea and the non-compliance rate of HACCP certification evaluation by size, the accident rate of companies without HACCP certification was 31.2% higher than that of companies with HACCP certification. The nonconformity rate of food inspection standards was analyzed to be 89.0% higher than that of HACCP certification companies. Based on the international trend of food safety management and the frequency of food safety accidents, it is proposed to gradually expand the mandatory application of HACCP system in Korea to all foods, and to change the small-scale HACCP standard from less than 500 million Korean won or 21 employees to less than 500 million Korean won.