해방 후 김일성의 정치적 부상과 집권과정

기광서 한국역사연구회 2003 역사와 현실 Vol.- No.48

The purpose of this article is to investigate the process of Kim Il Sung's political uprising after the liberation of Korea by exploring various internal and external factors: the relations to the Soviet Union, his political ability, his position within political groups, and the change of the situation. During his anti-Japanese armed struggle in 1930s, Kim Il Sung obtained no less massive popularity in Korea and took a second position after Park Ho˘n-yo˘ng in Korean communist Party(KCP) which was reestablished after the country's liberation. The Soviet authorites, distinctly recognizing Kim Il Sung's political inclination, helped his political growth by giving various assistance. Cho Man-sik, Kim Il Sung's potential rival, had an opportunity to play an important political role in North Korea, but he couldn't help leaving forcedly from the political arena because of his attitude against the Moscow Agreement. Standing as a chairman of Provisional People's Committee of North Korea in February 1946, Kim Il Sung became "the first man" in North Korea. Land reform, accomplished nearly at the same period with this Committee, had given him a crucial opportunity to strengthen his own political influences. Kim Il Sung's political power didn't seem to be absolutely consolidated, when the leadership of KCP escaped from the suppression of the American authorities and arrived at North Korea. It would be probably difficult to substitute Park Ho˘n-yo˘ng for Kim Il Sung, keeping the firm support of the mass and communists in North Korea. Nonetheless, Kim Il Sung encountered with 'invisible' challenge from Park Ho˘n-yo˘ng's group for some period. In sum, after the liberation of Korea, Kim Il Sung became the top leader of North Korea throughout the following important steps: the acquisition of his popular images soon after the return in Korea, the exclusion of Cho Man-sik, the failed attempt to establish Provisional Government of Korea and the victory in competition with Park Ho˘n-yo˘ng.

아스팔트 콘크리트의 고온변형저항 특성 측정방법 개발

김광우,이문섭,김중렬,이순제 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

본 연구는 정하중하에서 아스팔트 혼합물의 소성변형 저항특성을 측정할 수 있는 새로운 시험방법을 개발하기 위하여 수행되었다. 2가지 골재(편마암, 화강암)와 6가지 아스팔트(일반아스팔트, 5가지 개질 아스팔트)를 사용하여 총 12개의 밀입도 혼합물을 제작하였다. 마샬 배합설계를 통해 최적아스팔트 함량을 구하고, 결정된 최적아스팔트 함량으로 마샬공시체(S=10 cm)와 자이레토리 공시체(S=15cm)를 제작하여 마샬안정도시험, 휠 트랙킹 시험, 개발된 김테스트(Kim -test)를 수행하였다. 김테스트는 공시체와 하중봉을 지지할 수 있는 김시험장치(Kim tester)를 이용하여 하단이 반경(r) 0.5 또는 1.0cm로 원형절삭한 직경(D) 3cm, 4cm의 하중봉을 사용한다. 또한 재하는 마샬 하중재하 장치를 사용하여 공시체를 60℃ 수조에 30분동안 수침시킨 후 실시되었다. 정하중은 공시체의 직경방향이 아닌 축 방향으로 50 mm/min가 가해졌고, 최대하중(P_max)과 수직변형(y)이 측정되었다. 마샬안정도시험과 간접인장강도시험에서 얻어지는 것과 유사한 곡선이 각각의 시험에서 얻어졌다. 강도값은 P_max, r, y 및 H(=D-2r)을 이용한 K_D=4P_max/π(H+2√(2ry-y^2))^2식을 통하여 계산하였고, 이를 변형강도(kgf/㎠)로 정의하였다. 실험결과, 공시체 직경이나 골재종류보다는 하중봉과 하중봉 하단의 원형처리 여부가 K_D와 P_max 값에 영향을 미치는 것으로 나타났다. 통계분석결과에서 K_D가 소성변형 깊이와 동적 안정도에 높은 상관성을 보였다. 향후 연구를 통해 K_D의 유효성이 검증된다면, Kim-test는 아스팔트 혼합물의 소성변형 저항성을 판단할 수 있는 시험방법으로 사용될 수 있을 것이다. This study dealt with developing a new approach for finding properties which might represent rut resistance characteristics of asphalt mixture under static loading. Two aggregates, a normal asphalt (pen 60-70) and 5 PMAs were used in preparation of 12 dense-grade mixtures. Marshall mix design was used in determination of the optimum asphalt content (OAC) and each mixture at the OAC was prepared for a newly-developed Kim test on Marshall specimen (S=10 cm) and gyratory specimen (S=15cm), and for wheel tracking test. Kim test used Marshall loading frame and the specimen was conditioned for 30min at 60℃ before loading through Kim tester, and apparatus consisting of a loading column and a specimen and column holder. Diameter (D) of column was 3cm and 4cm with each column having different radius (r) of round cut at the bottom. The static load was applied at 50mm/min in axial direction of the specimen, not in diameteral direction, and the maximum load (P_max) and vertical deformation (y) at the maximum load point were measured. A curve, similar to the one from a Marshall test or static indirect tensile strength test was obtained from each test. A strength value was calculated based on the P_max, H(=D-2r). r and y by using the equation K_D=4P_max/π(H+2√(2ry-y^2))^2 and is defined as deformation strength (kgf/㎠). The values of P_max/y and K_I=K-D/y were also calculated to see if these have any correlation with rutting. In general, D and r were significant factors affecting K_D, while specimen size was not. The statistical analyses results showed the K_D had the best correlation with rut depth and dynamic stability. The next best correlation was found from P_max which was followed by P_max/y and K_I in order. Therefore, K_D can be used for selecting the highly resistable asphalt mixture against permanent deformation.

개질 아스팔트 혼합물의 변형강도 측정 연구

김광우,도영수,이기호,조문진,최선주 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

본 논문은 아스팔트 혼합물의 소성변형 저항성과 상관성이 높은 특성치를 찾고자 Kim test를 개발하여 현재 적용성 연구결과를 다루고 있다. 이 논문은 새로운 강도특성치인 변형강도(S_(D))를 개발하는 Kim, test 연구의 4단계 연구 결과이다. 13 mm 골재(편마암, 화강암)와 입도(밀입도, 갭입도) 5가지 폴리머로 제조한 8가지 바인더로 두 가지 입도에서 소성변형 저항성이 다른 32가지 혼합물을 만들었다. 슬래브(305㎜×305㎜×62㎜)공시체를 제조하여 한쪽은 Kim, test를 수행하기 위하여 18 cm정도로 잘라서 코어를 3개 채취하고 다른 한쪽은 12cm크기로 하여 반복주행시험을 실시하였다. Kim, test는 하중봉 3(0.75), 4(1.0)을 사용하였다. W/T시험으로부터 최종 침하 깊이와 동적안정도의 두 가지 소성변형 계수를 각 혼합물별로 구했다. 각 하중봉과 골재별, 입도별로 S_(D)와 소성변형 계수간의 통계적 상관관계 분석을 수행한 결과 S_(D)와 소성변형 계수와의 결정계수가 매우 높게 (R²>0.95) 나타났다. 하중봉 4(1.0)이 3(0.75)보다 다소 높은 상관성을 보였다. 향후 Kim test실험에서 하중봉 4(1.0)을 사용하고 4단계 방법을 이용한다면 소성변형 특성치인 침하깊이(DR)와 동적안정도(DS)와의 상관성이 매우 큰 시험법이 될 것이다. 또한 변형강도의 파괴 메커니즘은 콘크리트의 펀칭파괴와 유사하여 콘크리트의 전단강도 추정식을 근거로 아스팔트 콘크리트의 재료 특성에 적합한 추정식 계수 ◁ 원문 수식 참조 ▷ 를 얻었다. 이 식을 이용한다면 아스팔트 콘크리트가 견딜 수 있는 임계하중을 변형강도에 근거하여 추정할 수 있을 것이다. This study shows predictability of rut parameters of modified and unmodified asphalt concretes based on the deformation strength (S_(D)) which is calculated from the maximum load, deformation and size variables of loading head under simple static loading. This paper is the result of latest studies, phase 4 which is a part of Kim, Test studies for developing a new strength property for asphalt concrete. Two aggregates, gneiss and granite, two gradations, dense-graded, gap-graded, with maximum, size of 13mm and eight binders using different contents of five polymers (RLDPE, RHDPE, LDPE, SBS, SBR) were used to produce 32 different mixtures. A slab (305㎜×305㎜×62㎜) was cut into two pieces(18cm and 12cm width) and three 10cm cores were taken for S_(D) test from the larger piece and wheel tracking test was performed on the smaller piece. Kim test was performed using loading head 4(1.0), 3(0.75). Two rut parameters, depth of rut and dynamic stability, from the rut depth-cycle curve from a WT test were obtained for each mixture. Statistical analysis were performed for each loading head, aggregate, and gradation to find out correlation between S_(D) values and each rut parameter. The analysis results showed that S_(D) had high R² (over 0.95) on the average with rut parameters. The loading head 4(1.0) showed R² better than 3(0.75). It is concluded that S_(D) is the property that has excellent predictability for rut parameter of asphalt concretes. An equation, ◁ 원문 수식 참조 ▷ was obtained based on the equation of concrete shear load creating punching failure and current test data, because the failure mechanism of S_(D) is similar to punching failure of concrete. In the equation, P is shearing force creating punching effect, b is length of perimeter of punching area and d is depth of specimen. If this formula is used, a critical load for deformation failure will be predicted based on the S_(D).

「『拙藁千百』 譯註」(7) : 권1「金文正公墓誌」의 분석을 중심으로

이진한(Lee, Jin-Han),김보광(Kim, Bo-Kwang),김규록(Kim, Kyu-Rok) 고려사학회 2014 한국사학보 Vol.- No.55

『졸고천백』은 2권으로 된 최해의 문집이다. 최해는 주로 고려에서 활동하다가 정치적으로 소외되어 크게 현달하지 못하고 40세 정도에 은퇴하였다. 그는 대신 이제현, 이곡, 최문도 등 당대 최고의 문인과 교유하였다. 이 논문에서는 『졸고천백』중 권1의 15번째 글인「김문정공의 묘지」라는 글의 특징을 살피고, 번역 및 주석의 작업을 하였다. 이 글은 고려후기의 인물인 김태현을 위한 묘지명이다. 1261년에 태어난 김태현은 1276년(충렬왕 2)에 과거 급제한 이래 1330년에 사망할때까지 거의 대부분의 시기를 관원으로 활동하였다. 이 시기에 고려는 충렬왕과 충선왕의 重祚, 충선왕의 활동 및 토번 유배, 입성책동 등 굵직굵직한 정치적 사건을 겪었다. 이러한 정치상황에 따라 그는 관직 경력 상의 부침을 겪었는데, 「김태현묘지명」에서 주목되는 몇 가지를 정리하면 아래와 같다. 1) 아버지인 김수에 대한 기록이 주목된다. 삼별초가 제주도로 들어가려 할 때 제주로 파견되어 이를 막으려다 전사하였다는 내용이 실려 있다. 2) 김태현이 1280년에 충렬왕이 직접 선발한 시험에 합격하여, ‘전시문생’이라 불리면서 충렬왕의 측근으로 활동했다. 3) 그래서 충선왕이 1298년에 즉위하였을 때 그가 면직되었다는 사실 등 여타 기록에서 찾을 수 없는 경력을 이 묘지명을 통해서 확인할 수 있었다. Cholgo Ch"onbaek is a two-volume anthology of Choi Hae. He mostly worked in Goryeo, then later became politically isolated and made an early retirement at around 40 without significant achievements. This study examined the characteristics of ‘the epitaph for Kim Tae-hyun,’ the 15th entry in the book, and translated and annotated the original text. Mr. Kim was born in 1261, passed the state examination in 1276, and served as a government official most of his life until his death in 1330. This was a politically turmoil period that saw the enthronement, dethronement, as well as reinstatement of King Chungryeol and King Chungseon, the exile of King Chungseon to the present-day Tibet (Tobun at the time), the Mongol intervention in the Goryeo territory. Amid these political unrest, Mr. Kim’s career fluctuated as well. Some of the events are recorded in the work, which cannot be found elsewhere: 1) His father Su Kim is mentioned, who was dispatched to Jeju Island and killed there while trying to keep Sambyeolcho(a special capital defense unit) from entering the island. 2) Mr. Kim passed a state test directly overseen by King Chungryeol in 1280, and worked as a close aide to the king with a title Jeonsi-munsaeng(king"s students). 3) He lost his post when King Chungseon was enthroned in 1298. 4) The record shows that in the early 1300s, the Yuan dynasty operated 11 stations between Gaepyung and Gamsukseong.

북한경제의 달러화의 김정일 '궁정경제'

김광진 연세대학교 통일연구원 2007 통일연구 Vol.11 No.2

Dollarization and dependence on hard currency for Kim Jong Il, north korean economy and the people is more than serious now. The world already experienced Kim Jong Il's 'pertinacity' to getting back frozen 25mi11ion dollars at BDA, Macau., even not hesitating to show up with failed atomic bomb test. With a new government in South Korea, the south-north relationship is passing through temporary adjustment period and hundreds of thousands of food aid is stopped for a few months, but the rumor is at rampant that a massive starvation is about to break out in North Korea. This is only a case showing North Korea's dependence on outside, It makes quite anxious to know how the present economic situation and rehabilitation ability is for them and why they can not survive even several months without outside help. For correct diagnosis of this, it's needed to look into economic structure, foreign dependence and serious dollarization. The main focus of discussion here is on dollarization. There are 2 kinds in dollarization of economy; one is by government's active involvement through foreign exchange, monetary and foreign economic policy and the other is natural process by market itself as a result of economic downfall, steep devaluation of national currency, increased outside dependence and expanding black market economy. The situation in Peru in mid 90's is for former case. As for North Korea, it was propelled by 'Royal Court Economy' which was set up and expanded by Kim Jong Il and this case is not exactly by government policy. The devastated people's economy run by cabinet, its increased outside dependence, deepening reliance of formal economy and citizens on market by its expansion, rapidly growing 2nd economy and steep fall of 'WON' is another reason. Kim Jong Il himself and market affected both in a mixed way. Independence of munitions industry in 1972 from cabinet by setting up 'Committee of Economy No. 2' and growing up economic sector at party with a start of 'Bureau 39' in 1974 formed up 'Royal Court Economy' which is military-industrial complex. It became the direct source of Kim Jong Il's ruling finance and began to serve solely for munitions industry and system's safeguard. Structured mainly for foreign trade and hard currency earning, it has eaten out people's economy, becoming a group or conglomerate and now occupy 40~60% of the total national economy. Its expansion and running by Dollar kicked up more serious dollarization of economy. Now almost all the nation's hard currency income is made and overtaken by this economic sector. Its current asset is 248 times more than people's economy. This is the main obstacle to rehabilitation of people's economy. The economic sector run by cabinet extracted to 45% scale in late 90's, the peak of hardship, as compared with the level of late 80's when steep fall began. This brought increased outside dependence, growing market and exploding 2nd economy. For survival, citizens were forced into the market rather than relying on state distribution. At the same time, value of 'WON' fell 20 times for 5-6 years since it was devalued to market level in 2002 which was called 7.1 measure.' All these accelerated objection of national currency, increased possession of dollar and black market transactions which makes dollarization extreme. Now it is not too much to say that north korean economy is 'dollar economy,' or 'hard currency economy'. Inflow of outside assistance and dollar at present economic structure means direct inflow into 'Royal Court Economy,' the military-industrial complex. The rehabilitation of north korean economy is only possible when people's economy, the key industries revive. At the moment, the monopoly of hard currency by 'Royal Court Economy' and its priority in resource distribution blocks this way. This is the main reason why North Korea can not stand on itself even though a vast amount of aid was input into the state for past 10 years. Of course, food, fertilizer and heavy oil aid for consuming purpose might be another reason but this is only an excuse. Some say that on a condition one can not change the present system from outside, it can be a pretty smart way to make use of 'Royal Court Economy' sector as motivating force in changing North Korea by letting them taste market economy, which has freer access to outside world. It is sure that the employees in this sector has better ability and skill, and in future they will play the major role in leading change, for they have more frequent contact with outside, better information and understanding of market mechanism. This imposes us another difficult task of choosing how to look at 'Royal Court Economy' and how to handle them.

최근 국내외에서 육성된 무궁화 127 품종 중 조경적 활용가치가 높은 유망품종 선발

김광호 ( Kim Kwang-ho ),이춘석 ( Lee Chun-suk ),강호철 ( Kang Ho-chul ) 한국전통조경학회(구 한국정원학회) 2016 한국전통조경학회지 Vol.34 No.3

본 연구는 조경수용 무궁화 우수품종 보급을 위한 유전자원 수집과 특성을 평가하기 위해 최근 국내외에서 육성된 127품종의 1년생 접목묘를 이용하여 2014년부터 2015년까지 2년 동안 생육 및 형태적 특성조사를 실시하였다. 수집된 품종 중 화색 및 꽃이특이한 품종을 조사하여 무궁화를 조경수로 활용도를 높이는데 기여하고자 하였으며 얻어진 결과는 다음과 같다. 최근 국내외에서 육성된 품종들의 화색별 분류로는 크게 분홍색 단심(pink color with red eye spot), 흰색 단심(white color withred eye spot), 붉은 자주색 단심(purplish red color with red eye spot), 분홍보라색 단심(violet pink color with red eye spot), 심홍색단심(crimson color with red eye spot), 흰색 바탕에 붉은색 무늬의 이중색(asadal), 흰색(white color), 푸른색(blue color) 등 총 8종류로 분류되었다. 화색이 붉은 자주색으로서 적색이 강한 꽃으로 국내에서 육성된 품종으로 ‘광명’, ‘난파’, ‘노스페이스’, ‘불새’, ‘비단’,‘송암’, ‘영창’, ‘적퍼소’, ‘키호’, ‘탐라’, ‘화수레드’, ‘환희’ 등이 있었으며, 국외에서 육성되어 국내에 도입된 품종으로는 ‘Aphrodite’,‘Dr. Uemoto’, ‘Freedom’, ‘Pink Cup’, ‘PS 80-1’, ‘Purpureus Variegatus’, ‘Red Giant’, ‘Woodbridge’ 등이 있었다. 화색이 분홍보라색으로서 특이한 품종으로는 ‘꼬마’, ‘도투락’, ‘명미’, ‘병화’, ‘산처녀’, ‘태화’, ‘Hikari-hanagasa’, ‘Little Kim Violet’ 등이 있었다. 화색이 심홍색으로 기존의 꽃에서는 볼 수 없는 특이한 품종으로 ‘종무’와 ‘Ruffled Satin’ 등이 있었다. 최근 국내외에서 육성된 품종중 조경수용 소재로 보급할 수 있는 품종중 기존 품종에 비해 꽃의 크기가 큰 품종으로 무궁화 종간교잡종인 Hibiscus hybrid ‘Daewangchun’, ‘Daeil’,‘Jina’ 등이 있었다. 반면 꽃이 작고 조경적 가치가 높은 품종으로 ‘꼬마’, ‘미백’, ‘안동’, ‘릴킴’, ‘은하수’ 등이 있었다. 백단심계 무궁화‘꼬마’ 품종은 수고가 작은 왜성형으로 꽃의 크기가 5.2cm로 작은 소형화 품종으로 나타났다. 기존 품종에 비해 단심의 길이가 긴품종으로 ‘훈장’과 ‘하이리레드’가 있었다. 홍단심계 무궁화 ‘훈장’은 꽃의 크기는 12.0cm로 중간크기이나 단심길이는 4.8cm로 지금까지육성된 품종중 가장 긴 품종이었다. 또한 홍단심계 무궁화 ‘하이리레드’의 단심길이 역시 4.2cm로 꽃잎 길이에 비해 단심의 길이가 길어 조경적 가치가 높은 것으로 판단되었다. This study was carried out to characterize 127 recently developed cultivars of Rose of Sharon (Hibiscus spp.) in Korea and foreign Countries for landscape uses. The examined factors were growth characteristics such as tree height of a 1-year grafted plant(cm), plant type, growth habit, leaf characteristics such as shape and size, flower characteristics such as color, shape, size, and red eye during 2014 and 2015 for landscape uses. The results are obtained as follows; In the results of flower color of the 127 recently developed cultivars, pink color with red eye spot, white color with red eye spot, purplish red color with red eye spot, violet purple color with red eye spot, crimson color with red eye spot, asadal, blue color with red eye spot, and white color were distributed. In the flower characteristics, Hibiscus hybrid ‘Daewangchun’ had the largest flower size of 16.0cm out of the 127 cultivars. H. syriacus ‘Antong’, ‘Lil Kim’, and ‘Ggoma’ were cultivars with smaller flowers than other cultivars. H. syriacus ‘Hunjang’ had largest red eye, of 5.2cm of length compared to the other cultivars. The cultivars with unique flower color for landscape uses are H. syriacus ‘Kwangmyung’, ‘Nanpa’, ‘North face’, ‘Bulsae’, ‘Bidan’, ‘Songam’, ‘Youngchang’, ‘Jukpeoso’, ‘Kiho’, ‘Tamla’, ‘Hwasoored’ and ‘Hwanhee’. These flowers had a purplish red color and were developed in Korea. H. syriacus ‘Aphrodite’, ‘Dr. Uemoto’, ‘Freedom’, ‘Pink Cup’, ‘PS 80-1’, ‘Purpureus Variegatus’, ‘Red Giant’, ‘Woodbridge’ also had unique flowers with a purplish red color and were introduced from foreign countries. In addition, cultivars with violet pink flowers were H. syriacus ‘Ggoma’, ‘Doturak’, ‘Myungmi’, ‘Byunghwa’, ‘Sancheonyu’, ‘Taehwa’, ‘Hikari-hanagasa’, and ‘Little Kim Violet’. ‘Jongmoo’ and ‘Ruffled Satin’ had flowers with crimson color. Therefore, the new cultivars with unique flower colors were a promising cultivars to a woody landscape plant. Cultivars with large flower sizes were Hibiscus hybrid ‘Daewangchun’, Hibiscus hybrid ‘Daemang’, and Hibiscus hybrid ‘Jina’. H. syriacus ‘Ggoma’, ‘Mibeak’, ‘Antong’, ‘Lil Kim’, and ‘Eunhasu’ had small flower sizes. Cultivars with long red eye were H. syriacus ‘Hunjang’ and H. syriacus ‘Hi Lea Red’. Therefore, the new cultivars, Hibiscus hybrid ‘Daewangchun’, Hibiscus hybrid ‘Daemang’, Hibiscus hybrid ‘Jina’ with large flower sizes, H. syriacus ‘Ggoma’, ‘Mibeak’, ‘Antong’, ‘Lil Kim’, and ‘Eunhasu’ with small flower sizes, H. syriacus ‘Hunjang’ and H. syriacus ‘Hi Lea Red’ with long red eye, were promising cultivars to a woody landscape plant.

金錫冑의 『古文百選』 편찬과 唐宋派의 수용

金光年(Kim Kwang-Nyeon) 동양한문학회(구 부산한문학회) 2004 동양한문학연구 Vol.20 No.-

  이 논문은 17세기의 산문사적 전환을 시사하는 중요한 표지로서 김석주의 ??고문백선??에 주목하였다. 이 시기에 들어 당송파의 이론이 본격적으로 수용되면서 한국 한문산문사는 새로운 국면을 맞게 되는 바, ??고문백선??은 그 과도기적 상황을 보여주는 책으로서 높은 문학사적 가치를 지닌다. 김석주는 이 책에서 진한 고문과 당송 고문을 균형있게 뽑아놓음 으로써 산문의 경향이 한 편으로 편중되는 것을 경계하는 한편, ??당송팔대가문초??의 평어를 적극적으로 수용하여 17세기 이후의 산문이 당송고문 위주로 개편되는 데 중요한 역할을 담당하였다.   This paper focused on Kim Seok-Joo(1634~1684) as a principal writer who exert huge effect on the prosaic history during 17th century. Korean prosaic history entered upon a new phase during that period, and Kim"s anthology ??古文百選(One hundred articles as a classical literate style)?? stands for that transient phenomenon of 17th century. He picked out classical literate style of Qin-Han(秦漢) period and Tang-Song(唐宋) equally, for the purpose of keeping a look out for making too much concern on one of them. Meanwhile, he accepted critical remarks of ??唐宋八大家文抄??(Mo Kon"s anthology of eight great writers of Dang-Song period) positively. It also means that he had a major part on 17th prosaic history.

학습 속도를 향상시킨 수정된 자기생성 퍼지 시스템

김광용(Kwang-Yong Kim),권오석(Oh-Seok Kwon) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.1B

본 논문에서는 Kim이 제안한 자기생성(Self Generating)퍼지 시스템의 문제점인 학습 속도의 저하를 향상시킨 수정된 자기생성 퍼지 시스템을 제안한다. Kim 알고리즘은 기존 Araki 방법이 가진 다 입력 변수에 대해 생성되는 퍼지 규칙 및 소속 함수의 급격한 증가를 방지할 수 있는 효율적인 알고리즘이나 학습 수행 속도가 느리다는 문제점을 안고 있었다. 수정된 자기생성 퍼지 알고리즘은 Araki 및 Kim 알고리즘과 같이 입 · 출력 데이터 쌍만을 이용하여 퍼지 규칙 및 소속 함수를 자동적으로 결정하는 자기생성 퍼지 알고리즘으로 학습 수행 속도를 향상시킨 알고리즘이다. 함수 근사화 실험을 통해 입력 변수가 1개에서 3개까지에 대해 알아보고 기존 Kim의 방법에 비해 유사한 퍼지 규칙 및 소속 함수의 수를 가지면서 학습 속도가 현저히 개선됨을 알 수 있었다.

HDPE 폐비닐 개질 아스팔트 혼합물의 강도 및 공용 특성 연구

김광우 ( Kim Kwang Woo ),이기호 ( Lee Gi Ho ),권오선 ( Kwon Oh Sun ),조문진 ( Cho Mun Jin ) 한국농공학회 2004 한국농공학회 학술대회초록집 Vol.2004 No.-

본 연구는 폐비닐 펠렛을 도로포장재료로 재활용하여 자원절약 및 아스팔트 혼합물의 품질향상을 위한 연구이다. 이를 위하여 폐비닐의 첨가량별 배합설계를 수행하여 적정 폐비닐 첨가량과 최적 아스팔트 함량으로 편마암과 화강암 2가지 골재와 폐비닐인 RHDPE의 함량을 4가지로 혼합물을 제작하여 8종류의 개질 혼합물과 2종류의 무개질 혼합물을 제작하였다. 그리고 이 공시체에 대하여 마살안정도, 간접인장강도 및 Kim test와 반복주행시험 등 실내시험을 통하여 혼합물의 특성을 분석하였다. 폐비닐 첨가량은 RHDPE가 8%일 때 안정도와 간접인장강도 모두 가장 우수한 것으로 나타났고 취성도 나타나지 않았다. RHDPE를 첨가한 혼합물에 대하여 Kim test를 수행한 결과 DR과 DS 모두 높은 상관성을 보였다. 그리고 반복주행시험에서는 RHDPE를 첨가한 혼합물이 일반 혼합물보다 우수하였다. 향후 많은 실험을 통해 RHDPE의 우수성을 입증한다면 소성변형 저항성에 우수한 재료로 이용될 수 있을 것이다. This study is a fundamental research for recycled high-density polyethylene (RHDPE) in asphalt mixture for improving roadway pavement. Mix design was conducted by RHDPE content and optimum asphalt content (OAC) was determined for dense-graded surface course mixture. Marshall stability test, indirect tensile strength (ITS) test, wheel tracking test and Kim-test were carried out to measure the characteristics of RHDPE-added asphalt concretes. From the results of this study, RHDPE in asphalt mixture is possible. It could be considered that adding too much RHDPE in asphalt mixture is not proper. The optimum content of RHDPE was appeared to be 8%. In Kim-test, Statistical analysis were performed for each loading head and aggregate to find out correlation between SD values and each rut parameter. The analysis result showed that SD had very high coefficient of determination on the average with rut parameters.

국산 Lidocaine 알칼리화를 위한 Bicarbonate 혼합시 침전유발 최소량에 대한 고찰

이선호,김현수,곽인숙,안원식,최관호,김광민,손민제 대한마취과학회 2000 Korean Journal of Anesthesiology Vol.39 No.5

Background : When local anesthetics for regional anesthesia is used, usually small amounts of bicar-bonate are added for rapid onset. This addition gives the mixed solution a more alkaline pH. The following result is an increased unionized form of the local anesthetic and rapid penetration of the drug into tiissue. Unfortunately, no data about adequate mixing volumes of domestic lidocaine and bicarbonate is available. Methods : We examined six mixing pairs of two kinds of 2% lidocaines and three kinds of 8.4% bicarbonates for minimum volumes of bicarbonate to cause a precipitation of 2% 20 ml lidocaine. Results : The mean volumes of bicarbonate to cause precipitation were 1.54 ml for Kwang-Myung lidocaine with Kwang-Myung bicarbonate, 2.90 ml for Kwang-Myung lidocaine with Dae-Won bicarbonate, 2.73 ml for Kwang-Myung lidocaine with Je-Il bicarbonate, 0.97 ml for Je-Il lidocaine with Kwang-Myung bicarbonate, 1.26ml for Je-Il lidocaine with Dae-Won bicarbonate and 1.39 ml for Je-Il lidocaine with Je-Il bicarbonate. Conclusions : We conclude that the Kwang-Myung lidocaine and the Je-Il lidocaine could cause precipitation when mixing with a smaller bicarbonate volume than foreign textbook recommended. (Korean J Anesthesiol 2000; 39: 726-729)