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스마트그리드 환경에서 Attack Tree를 이용한 개인정보 위협 식별에 관한 연구
백만기 ( Man-ki Baek ),조재호 ( Chae-ho Cho ),원유재 ( Yoo-jae Won ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.1
스마트그리드는 기존 전력망의 비효율적인 운영, 이산화탄소 과다 배출, 전력피크의 문제를 해결하기 위한 방법으로 주목받고 있다. 하지만, 기존의 ICT가 도입되고 구조가 복잡해짐에 따라 개인정보를 침해 할 수 있는 가능성이 증가하게 되었다. 본 논문에서는 스마트그리드 내에서 개인정보를 다루는 기기, 시스템, 데이터와 같은 자산을 식별하여 공격자 입장에서의 공격 목표를 설정한 뒤, Attack Tree 방법을 통하여 세부적인 위협을 식별하였다. 분석 결과, 스마트그리드 환경은 기존의 ICT 기술이 접목되기 때문에 스마트그리드 구조상 발생할 수 있는 위협뿐 만 아니라 기존의 기술들에서 발생할 수 있는 위협도 함께 존재했다.
백만기(Man-Kee Baek),박현수(Hyun-Su Park),남정권(Jeong-Kwon Nam),조영찬(Young-Chan Cho),김기영(Ki-Young Kim),김정주(Jeong-Ju Kim),김우재(Woo-Jae Kim),신운철(Woon-Chul Shin),정지웅(Ji-Ung Jeung),김춘송(Choon-Song Kim),정종민(Jong-Min 한국육종학회 2019 한국육종학회지 Vol.51 No.4
‘Yechan’ is a high grain quality mid-late maturing rice cultivar with lodging tolerance and multiple disease resistance. It was a derived from a cross between ‘Hopum’ and ‘Iksan537’ (cultivar name ‘Haepum’). ‘Hopum’ is a high grain quality mid-late maturing rice cultivar with strong lodging tolerance and ‘Haepum’ is a high grain quality medium maturing rice cultivar with multiple disease resistance. To shorten the breeding period, another culture method was applied to the F1 plants. ‘Yechan’ was selected through the pedigree method, yield trials, and local adaptability tests, with a high selection pressure for grain quality, lodging, and disease resistance. The heading date of ‘Yechan’ was August 14, one day later than that of ‘Nampyeong’. ‘Yechan’ is a cultivar tolerant to lodging and it has short culms. It has multiple disease resistance against rice blast, rice stripe virus, and bacterial blight, including the K3a race, the most virulent race in Korea. The yield of ‘Yechan’ was similar to that of ‘Nampyeong’. ‘Yechan’ showed excellent grain appearance, superior taste when cooked, and enhanced milling performance; thus, we concluded that it could contribute to the improvement of Korean japonica rice cultivar quality. ‘Yechan’, a high grain quality mid-late maturing rice cultivar with lodging tolerance and multiple disease resistance, would be suitable for cultivation in the southern plain area in Korea and has been utilized in the breeding programs aimed at enhancing the grain quality and stability for the cultivation of Korean japonica rice (Registration No. 7647).
생육기간이 짧고 수당립수가 많은 자포니카 조생 사료용 벼 ‘조농’
박현수(Hyun-Su Park),백만기(Man-Kee Baek),김우재(Woo-Jae Kim),김정주(Jeong-Ju Kim),정종민(Jong-Min Jeong),조영찬(Young-Chan Cho),고종철(Jong-Cheol Ko),정지웅(Ji-Ung Jeung),정오영(O-Young Jeong),이창민(Chang-Min Lee),김석만(Suk-Man Ki 한국육종학회 2021 한국육종학회지 Vol.53 No.3
‘Jonong’ is an early maturing whole crop silage (WCS) japonica rice cultivar characterized by a short growth duration and numerousspikelets. It was developed to enhance the adaptability of WCS rice to double-cropping systems. ‘Jonong’ is derived from a cross between‘Binhae Col.#1’ and ‘Deuraechan’; ‘Binhae Col.#1’ is a semi-early maturing China rice germplasm with numerous spikelets on dense panicles,whereas ‘Deuraechan’ is a high-yielding japonica rice cultivar with numerous spikelets on long panicles. To diversify the genetic variationand shorten the breeding period, an anther culture method was applied to the F₁ plants. ‘Jonong’ was selected through the pedigree method,yield trials, and local adaptability tests, with a high selection pressure for short growth duration and high biomass. The average heading dateof ‘Jonong’ was August 1st, which is 11 days earlier than that of ‘Nokyang’, the standard cultivar for WCS rice. Moreover, the growth durationof ‘Jonong’ is the shortest among all Korean WCS rice cultivars. The culm length of ‘Jonong’ is 88 cm, which 4 cm longer than that of‘Nokyang’ and the highest among all Korean early maturing rice cultivars. ‘Jonong’ has 149 spikelets per panicle, which is 30 more thanthat of ‘Nokyang’, and is the highest among all Korean early maturing rice cultivars. ‘Jonong’ exhibits stable premature heading and is tolerantto lodging. It is moderately resistant to leaf blast and resistant to the rice stripe virus. The feed value of ‘Jonong’ in terms of total digestiblenutrients is good and comparable to that of ‘Nokyang’. Furthermore, compared with ‘Nokyang’, ‘Jonong’ shows a similar level of dry matteryield and a higher rough rice yield. Therefore, ‘Jonong’, an early maturing WCS japonica rice with short growth duration and numerousspikelets, would be suitable for cultivating in winter forage crop-rice double cropping systems (Registration No. 7274).
유재수 ( Jae Soo Yoo ),백만기 ( Man Kee Baek ),백소현 ( So Hyeon Baek ),박현수 ( Hyun Su Park ),조영찬 ( Young Chan Cho ),김보경 ( Bo Kyeong Kim ),하기용 ( Ki Young Ha ) 한국산업식품공학회 2012 산업 식품공학 Vol.16 No.4
자포니카 품종을 이용하여 제조된 누룽지의 품종 간 차이를 비교하기 위하여 이화학적인 특성, 조직감 및 관능 특성에 대해 조사하였다. 품종들의 수분함량은 12.6-14.4%, 단백질 함량은 5.7-7.9%, 지질 함량은 0.6-3.4%, 회분 함량은 0.3-0.5% 범위이었다. 아밀로스 함량은 14.3-17.3% 범위로 대립벼가 가장 높고 친농이 가장 낮게 평가되었다. 물결합력은 품종 중 보람찬이 가장 높았으며, 경도는 신동진이 가장 높아 단단하였고 보람찬이 낮아 부드러운 특성을 나타냈다. 색도는 친농이 가장 밝게 평가되었고, 환원당 함량은 1.8-2.11 mg/mL 범위로 색도와의 상관관계는 알 수 없었다. 관능검사 결과 색깔에 대한 평가는 친농이 가장 높았고, 냄새는 친농>드래찬>보람찬 순으로 우수하였으며, 맛, 경도, 씹힘성과 전반적인 기호도는 보람찬이 우수하였다. This study was carried out to compare the varietal difference in physicochemical properties, texture and sensory characteristics of nuroong-gi prepared japonica rice cultivars. Moisture content of the cultivars was 12.6-14.4%, crude protein content was 5.7-7.9% and crude lipid content was 0.6-3.4%, ash content was 0.3-0.5%. Amylose content is varied from 14.3% to 17.3% and Daeribbyeo 1 scored the highest, Chinnong the lowest. The water binding capacity of Boranchan scored the highest, Shindongjin showed hard characteristics because it scored the highest in hardness whereas Boramchan showed soft characteristics because it scored the lowest in hardness, Lightness of Hunter color values indicates that Chinnong was evaluated as the brightest, reducing sugar content is arranged from 1.8 to 2.11mg/mL which doesn`t show correlation with color. In regard to a result of sensory evaluation, Chinnong scored the highest in color assessment, flavor scored higher in turn of Chinnong, Deuraechan, Boramchan, Boramchan scored higher in taste, hardness, chewiness evaluation and overall acceptability.
자포니카 다수성 벼 드래찬과 보람찬 유래 약배양 계통을 이용한 이삭 및 수량 관련 형질 분석 및 다수성 계통 육성
박현수(Hyun-Su Park),하기용(Ki-Yong Ha),김기영(Ki-Young Kim),김우재(Woo-Jae Kim),남정권(Jeong-Kwon Nam),백만기(Man-Kee Baek),김정주(Jeong-Ju Kim),정종민(Jong-Min Jeong),조영찬(Young-Chan Cho),이점호(Jeom-Ho Lee),김보경(Bo-Kyeong Kim) 한국육종학회 2015 한국육종학회지 Vol.47 No.4
A doubled haploid (DH) lines derived from the cross between high-yielding japonica rice cultivars ‘Deuraechan’ and ‘Boramchan’ was developed to increase diversity of panicle and yield-related traits and select high-yielding lines. Panicle and yield-related traits of DH population consisting of 163 lines and 13 selected high-yielding lines were analyzed using correlation, principal component, and path analysis. Among panicle-related traits, number of spikelets on secondary rachis-branches (SRBs) was more highly correlated with and had more positive effect on number of spikelets (NS) than number of spikelets on primary rachis-branches (PRBs) per panicle. In the DH population, NS had the most positive effect on yield, whereas panicle number per hill (PN) was in the selected lines. PN was significantly positive correlated with ratio of ripened grain (RGG) in both case. The enhancement of ripening and increase of total spikelets number by increasing PN had more effect on yield than increase of total spiekelts number by increasing NS in the selected lines. Among 13 lines, four lines, AC60, AC152, AC156, and AC161 showed higher yield than Deuraechan (481 kg/10a) and Boramchan (558 kg/10a). Deuraechan exhibited panicle-weight type with low tiller and heavy panicles and Boramchan was slightly panicle-number type with more PN and higher RGG. Selected high-yielding lines showed medium characteristics of parents with improved yield potential. These elite lines could be utilized to develop high-yielding japonica rice.
일 통계청 근무자의 직무스트레스와 스트레스 대처 방식에 대한 예비 연구
이현수,윤보현,오은주,시영화,김경민,정하란,김문두,백만기,손은락,정자영,Lee, Hyun-Soo,Yoon, Bo-Hyun,Oh, Eun-Joo,Sea, Young-Hwa,Kim, Kyung-Min,Jung, Haran,Kim, Moon-Doo,Baek, Man-Ki,Son, Eun-Rak,Jung, Ja-Young 한국정신신체의학회 2015 정신신체의학 Vol.23 No.2
연구목적 본 연구는 통계청 근무자를 대상으로 이들의 직무스트레스의 정도를 파악하고, 직무스트레스와 스트레스 대처방식 간에 연관이 있는지 알아보기 위해 시도된 예비연구이다. 방 법 일 지방통계청에 근무하는 직원 133명을 통계조사업무를 담당하는지에 따라서 통계조사군(n=109), 조사지원군(n=24)으로 구분하여 인구사회학적 특성, 직무스트레스, 그리고 스트레스 대처방식을 조사하였다. 연구에 사용된 척도는 자가보고식 설문지인 한국인 직무스트레스 척도 단축형(Short form of Korean Occupational Stress Scale, KOSS-SF), 스트레스 대처 방식 척도(Stress Coping Strategy, SCS)를 활용하였다. 결 과 KOSS-SF의 총점은 연령, 성별, 교육 수준, 결혼 상태와 관련이 없었으며 통계조사군과 조사지원군간에 유의한 차이를 보였다. 하부영역으로는 직무자율결여, 관계갈등, 직무불안정, 조직체계의 4개 영역에서 양군간에 유의한 차이를 보였다. 또한, KOSS-SF와 SCS와의 관계에서는 KOSS-SF의 총점과 문제 중심 대처, 사회 지지 대처간에 부적 상관관계를 보였다. 결 론 통계조사를 담당하는 통계청 근무자들은 조사지원을 하는 직원들에 비해 직무스트레스를 더 받았으며, 남녀 모두 공통적으로 관계갈등 영역에서 직무스트레스를 더 받았다. 스트레스 대처 방식 중에서는 문제 중심 대처와 사회 지지 대처를 사용하는 경우에 직무스트레스를 덜 느꼈다. Objectives : The purpose of this preliminary study was to investigate job stress and stress coping strategy among workers in a regional statistics office. Methods : A total of 133 workers in regional statistics office participated in this study and they were divided into two groups, survey group(n=109) and support group(n=24) depending on relation to statistical survey task. They were asked to respond to Short Form of Korean Occupational Stress Scale(KOSS-SF) and Stress Coping Strategy(SCS) to investigate sociodemographic characteristics, job stress, and stress coping strategy. Results : The proportion of the 133 participants in the sample was 59(44.4%) of men, 74(55.6%) of women. There were no significant differences in KOSS-SF scores in relation to age, sex, education, and marital status, while the KOSS-SF scores were significantly different between the two groups. In regard to the subscales of KOSS-SF, the two groups had significant differences in insufficient job control, interpersonal conflict, job insecurity, and organization system. In addition, the total score of KOSS-SF had a negative correlation with problem-focused coping strategy and social support coping strategy of SCS. Conclusions : Our results suggest that workers of survey group had more job stress compared to those who works in support group in regional statistical office. In addition, in comparison with workers of support group, both men and women of survey group get stressed when they were confronted with interpersonal conflicts. Our results suggest that using problem-focused coping and social support coping strategy lowers job stress.
자포니카 벼품종을 이용한 파보일드미의 침지 조건 및 이화학적 특성
유재수 ( Jae Soo Yoo ),백소현 ( So Hyeon Baek ),백만기 ( Man Kee Baek ),박현수 ( Hyun Su Park ),김보경 ( Bo Kyeong Kim ),하기용 ( Ki Young Ha ) 한국산업식품공학회 2012 산업 식품공학 Vol.16 No.4
본 실험은 6개 자포니카 품종의 벼를 이용하여 파보일드미 제조를 위한 침지조건 및 이화학적 특성을 조사하였다. 파보일드미 제조과정 중 정조의 전분이 완전하고 균일한 호화가 될 수 있도록 하기위한 최적 수분함량은 30%이며, 침지온도와 시간은 각각 65oC 및 4시간 이었다. 파보일드미의 길이와 폭은 모든 품종에서 감소되었고, 완전미율은 증가되었으며, 쇄미와 균열미 발생은 낮았다. 파보일드미의 조단백질 함량은 모든 품종에서 낮고, 조지방과 조회분 함량은 높아졌다. 파보일드미의 쌀알의 경도는 일반백미보다 단단하고, 명도는 낮고 적색도와 황색도는 높아졌다. 환원당 함량은 일반백미 보다 파보일링 후 증가되었고 품종 중설갱벼가 가장 높았으며, 드래찬, 보람찬, 양조 및 평안벼 등 4품종은 유의한 차이는 없었으며 신동진이 가장 낮게 평가되었다. 조리 중 취반수에 유출된 고형분함량은 파보일링 후 모든 품종에서 감소되었다. 파보일드미의 취반후의 경도는 원료미 보다 단단하고 탄성은 높아졌으며, 응집성은 낮아졌다. This study was carried out to investigate the most suitable soaking condition and the characteristics of parboiled rice using six japonica rice cultivars. It is important to maintain 30% of moisture content in the soaking process to acquire perfect and uniform gelatinization of starch of unhulled rice, and the most suitable soaking temperature and time are found to be 65oC and 4 hours, respectively. The length and width in forming of milled rice tend to be shortened in parboiled rice. The percentage of head rice in parboiled rice was higher than that of raw milled rice, and it was the highest 99.8% in Boramchan, The rate of broken and cracked rice in parboiled rice were lower than those of the raw milled rice. The crude protein contents after parboiling in all cultivars were lower than those of raw rice, whereas those of crude fat and ash increased. After parboiling, the hardness increased, colorimetric L value decreased, and increased colorimetric a and b values in comparing with those of milled rice, The reducing sugar contents increased after parboiling, and were the highest value in Seolgaeng. Solid contents in the parboiled rice were lower than those of raw milled rice in all cultivars, In a result of measuring textural properties after cooking, the hardness and springiness were measured higher in parboiled rice than raw rice, the cohesivness was measured higher in the raw milled rice than parboiled rice.