벼 기계이앙 1회용 종이 육묘상자 개발

박성태,황정동,김상열,문헌팔,양세준,김순철,유남진 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.3

벼 기계이앙 육묘에 주로 사용하고 있는 플라스틱 육묘상자의 문제점을 개선하고 친환경 농업 실현에도 기여할 수 있는 벼 기계이양 종이 육묘상자개발 및 육묘시험 결과를 요약하면 다음과 같다. 1. 폐지 등 혼합물을 고열압착한 종이 육묘상자는 내부 길이가 가로 58㎝, 세로 28㎝, 높이는 2㎝이고 무게는 250g이다. 2. 종이 육묘상자 모의 파종 후 10일~30일 묘소질은 플라스틱 육묘상자 모에 비하여 초장이 1.1~1.8㎝ 짧고 본당 건물중은 0.3~3.7㎎이 떨어졌으나 엽수와 모 충실도는 비슷하였다. 3. 종이 육묘상자 모의 파종 후 30일(중묘) 이앙 시 결주율은 3.3%로 플라스틱 육묘상자 모 결주율 3.2%와 거의 같았고, 출수기, 벼 생육특성 및 수량도 플라스틱 육묘상자와 비슷하였다. 4. 종이 육묘상자의 이점은 플라스틱 육묘상자에 비하여 육묘상자 비용이 약 20% 절감되고 파종 후 운반, 치상 등 작업이 용이하며, 이앙 후 회수, 세척 및 보관관리 노력이 생략된다. 그리고 이앙 후는 논에서 유기물화되므로 친환경농업에도 부합된다. A light and bio-degradable paper tray for seedling raising in machine transplanting rice was developed for the first time and a possibility for rice seedling growth was evaluated. The paper tray was made of mixture of recycling paper and sawdust, and molded under high temperature and pressure. The tray was 58㎝ length x28㎝ width x2㎝ height in size and 250g in weight per tray. The seedling height and dry weight per plant grown at the paper tray were generally 1.1 to 1.8㎝ shorter and 0.3 to 3.7㎎ lighter than those grown at the conventional plastic tray, respectively. However, other characters such as leaf number, seedling health score, missing hill, heading date, panicle and spiketlet number, and milled rice yield were similar to those in the plastic tray. Based on the result of research, the paper tray had following advantages in comparison of the plastic tray. The paper tray could be reduced seedling raising cost by 20% as compared with the plastic tray. Since the paper tray was of lightness even after seedbed soil fill-up, it was more handy and convenient to carry over. Labor input for collecting, washing, and storing the empty tray after seedling transplanting was not needed as the plastic tray. The paper tray was also bio-degraded and transformed into an organic matter, once it was incorporated into soil, which was considered as an environmentally- safe cultivation technology.

트랙타 부착 대형이앙기 개발 및 재배적 실용성

박성태,장익주,정창화,김상열,김재현,문헌팔,양세준,김순철 한국국제농업개발학회 2002 韓國國際農業開發學會誌 Vol.14 No.3

쌀 생산비를 줄이고 대경지 규모화 영농에 적응할 수 있는 농기계 개발을 목적으로 연구개발한 대규모 경지적응 트랙터 부착 대형벼이앙기의 구성과 특징 및 개발시작기의 재배적 실용성 평가결과를 요약정리하면 다음과 같다. 1. 트랙터 부착 12조 대형벼이앙기는 크게 바퀴자국 제거로타리, 문짝형 정지판, 이앙장치부 등으로 구성되어 있다. 2. 트랙터 부착 12조 이앙기는 트랙터 동력을 이용하여 로타리, 정지 및 이앙작업이 동시에 이루어 질 수 있도록 개발하였다. 3. 바퀴자국을 없애는 날은 기존의 로타리 날을 교체하면 되도록 반달형 날로 제작하였다. 4. 이앙기는 이동시는 접을 수 있도록 설계 제작되어 대형화가 가능하므로 기존 6조 승용이앙기에 비하여 이앙작업 능력이 1.5배 이상이었다. 5. 트랙터 부착 대형벼이앙기는 트랙터와 같은 큰 동력원을 이용할 수 있으므로 측조시비기, 긴매트모 탑재 등 다양한 작업기 및 기능을 추가로 부착 가능하도록 설계되었다. 6. 트랙터 부착 대형벼이앙기는 어린모 및 중묘이앙시 결주율은 3.0∼4.3%로 기계이앙기 결주 허용범위 5% 미만이었다. 하지만 무경운 논에서는 이앙작업은 가능하나 부묘율이 다소 높은 점은 보완이 필요하다. To develop a labor saving rice cultivation technology, a new tractor attached rice transplanter has been developed for large scale farming and its field performance was evaluated. The rice transplanter consists of three major parts such as rotary for removing tractor tire furrow, door-shaped soil leveling plate and transplanting equipment. The rice transplanter is operated using the power of the tractor and performs rotary, harrow and seedling transplanting simultaneously. A half moon shaped rotary blade was found to be very efficient to remove tire furrow developed during seedling transplanting and the original rotary blade can be replaced easily with existed rotary blade. The seedling transplanting part of the transplanter was designed to fold into small size and the transplanting efficiency of the transplanter was found to be 1.5 times higher than that of the conventional riding type six row transplanter. Since the transplanter is operated through a strong power of the tractor, the additional attachment such as fertilizer application apparatus and long mat rice seedling carrier is possible. Based on the field performance of the transplanter, although the missing hill percentage showed roughly with 3.0∼4.3% for 10-day and 30-day old seedlings but the percentage is less than 5% which is maximum missing hill permit in the transplanting rice. Seedling transplanting in no-tillage field condition is acceptable but floating seedling percentage is still high and thus further technology improvement for minimizing floating seedling percontage is needed.

On F Convex Sets

宋玄鍾,金道庠 釜山水産大學校 1982 釜山水産大學 硏究報告 Vol.22 No.2

French railroad space 상에서 F凸集合의 位相的 性質을 연구하여 다음과 같은 결과를 얻었다. 1. C⊆R²가 眞F凸 集合일때 1) 원점 O가 C의 interior에 포함될 때, ??도 역시 F凸集合이다. 2) C의 폐포 Cl₂(C)도 역시 F凸集合이다. F凸集合의 한 응용으로서 한 점에서 凸인 함수에 對해 다음 問題를 다루었다. 1) 원점 O에서 凸이라는 것과 O에서 Support에 갖는다는 것이 동치인가 ? 2) 원점 O에서 凸이면 반드시 O에서 Jenson의 부등식이 성립하는가 ? 그 결과로서 2. F凸 集合상에 定義되는 Sadle surface를 利用하여 위 두 사실이 성립하지 않음을 예를 들어 보였다. Author studied topological properties of F convex sets in the French railrood space and got following main results : 1. Let C be a prope F convex subset of R². 1) If 0 εInt₂(C), then Int₂(C) is also F convex. 2) Cl₂(C) is also F convex. As an application of F convex set, author considered following two problems for a function convex at 0. 1) Is beingconvexity at 0 equivalent to having support at 0? 2) Does convexity at 0 imply Jencen's inequality holds at 0? and showed that 2. Answers to the above questions are negative in general by using saddle surface defined on a F convex function.

粉末法을 爲한 多重度 因子

徐日煥,秋錦洪,李珍昊,林星秀,柳保盈,朴晶蘭,金憲俊,成百石,李正秀,金文執 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.1

The multiplicity factor, which may be defined as the number of different planes in a form having identical interplanar spacing and identical intensity, is tabulated here for eleven Laue groups on the basis of their symmetries.

Reciprocal Lattice Explorer의 原理와 使用法

徐日煥,李珍昊,秋錦洪,林星秀,柳保盈,朴晶蘭,金文執,趙素羅,金憲俊,李正秀,成百石 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.2

Reciprocal lattice explorer는 de Jong-Bouman camera와 Buerger precession camera를 合친것이다. 이 explorer를 使用하면 goniometer에 한번 固定한 試料를 使用하여 그 試料의 空間群을 決定하는데 必要한 모든 寫眞을 撮影할 수 있으며 그들은 찌그러지지 않은 逆格子面의 寫眞들이다. 本 論文에서는 de Jong-Bouman 과 Buerger precession 寫眞術의 原理와 使用法을 記述 하였고 또한 de Jong-Bouman의 振動寫眞과 zeroth layer 寫眞으로부터 11個 Laue群의 識別方法도 提示하였다. The reciprocal lattice explorer is an instrument which incorporates the principles of both the Buerger precession and the de Jong-Bouman methods. On the explorer all photographs which are necessary for a space group determination can be taken with a single setting of a crystal and the photographs show undistorted pictures of the reciprocal lattice planes. In this paper, the principles and the usages of the de Jong-Bouman and the Buerger precession photography are described, and a method of 11 Laue group identification using the de Jong-Bouman oscillation and zeroth layer photographs is shown.

Functional and Molecular Expression of Epithelial Sodium Channels in Cultured Human Endolymphatic Sac Epithelial Cells

Kim, Sung Huhn,Park, Hun Yi,Choi, Hyun Seung,Chung, Hyun Pil,Choi, Jae Young Otology Neurotology, Inc. 2009 Otology & Neurotology Vol.30 No.4

HYPOTHESIS:: Epithelial sodium channels are expressed in cultured human endolymphatic sac (ES) epithelial (HESE) cells and epithelial sodium channel (ENaC) expression is suppressed by interleukin 1&bgr;. BACKGROUND:: The ES is part of the membranous labyrinth in the inner ear that plays an important role in maintaining homeostasis of the endolymphatic fluid system. However, the exact mechanism of fluid volume regulation is not yet known. METHODS:: The ES specimens were harvested during acoustic neuroma surgery (n = 13) using the translabyrinthine approach and were subcultured with high-epidermal growth factor (25 ng/mL) media. RESULTS:: The serially passaged HESE cells differentiated into a monolayer of confluent cells and some of the cultured cells had features of mitochondria-rich cells. Reverse transcription-polymerase chain reaction revealed that ENaC subunits are expressed in the cultured HESE cells. We also confirmed the presence of an ENaC-dependent short-circuit current in the cultured HESE cells. Interestingly, ENaC mRNA expression and ENaC-dependent current decreased after treatment with interleukin 1&bgr; (10 nmol/L for 24 h). CONCLUSION:: These findings suggest that ENaC plays an important role in fluid absorption in the human ES and that its function may be altered during inflammatory conditions.

Identification of evidence for autoimmune pathology of bilateral sudden sensorineural hearing loss using proteomic analysis

Lee, Jeon Mi,Kim, Jin Young,Bok, Jinwoong,Kim, Kyu-Sung,Choi, Jae Young,Kim, Sung Huhn Elsevier 2017 Clinical immunology Vol.183 No.-

<P><B>Abstract</B></P> <P>Sudden sensorineural hearing loss (S-SNHL) is an inner ear disorder with an abrupt hearing loss occurring <3days. The pathologic mechanism of the disease remains unclear, although autoimmunity has been regarded as one of the suggested causes, especially in bilateral form. In this study, we aimed to provide evidence for the involvement of autoimmunity in bilateral S-SNHL using proteomic approaches such as ProtoArray®, western blotting, immunoprecipitation, and liquid column mass spectrometry for mass screening of candidate antigens and autoantibodies based on the hypothesis that multiple autoantibodies and target antigens must exist in order for autoimmune bilateral S-SNHL to develop. As the final outcome, we have proven the involvement of autoimmunity in the disease, and investigated the existence of circulating autoantibodies and candidate antigens. These findings could provide basic evidence necessary for the development of diagnostic biomarkers as well as the understanding of the pathological mechanisms underlying bilateral S-SNHL.</P> <P>S-SNHL: sudden sensorineural hearing loss; LC-MS: liquid chromatography-mass spectrometry; MS: mass spectrometry; autoAb: autoantibody; 1-DE: one-dimensional electrophoresis.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Evidences for autoimmunity were revealed by proteomic techniques in bilateral S-SNHL. </LI> <LI> Multiple autoantibodies and their target antigens were involved in the autoimmunity. </LI> <LI> The results can provide a basis for understanding autoimmune inner ear disorder. </LI> <LI> Biomarkers in autoimmune inner ear disorder can be developed based on the results. </LI> </UL> </P>

A New Leaf Vegetable Perilla Cultivar, "Ilyeop"

Ki Won Oh,Byung Joo Kim,Suk Bok Pae,Yong Ho Kwack,Hee Seang Park,Hyeon Tae Kim,Geum Suk Kim,Geon Jae Lim,Su Dong Kim,Huhn Pal Moon,Sung Eon Im,Myung Suk Kim,Byung Jun ChoiCha 한국육종학회 2007 한국육종학회지 Vol.39 No.1

“Ilyeop” (Perilla frutescens (L.) Britton), a new cultivar for leaf vegetable, was developed from a cross between Ipdeulkkae1 and YCPL187 at the National Yeongnam Agricultural Experiment Station, RDA, in 2001. For the cultivation of leaf vegetable perilla, the plants are grown with a spacing of 10 x 5 cm between rows and plants and all branches are removed to harvest uniform leaves from main stem, indicating that the amount of the next harvesting leaf is a important characteristic for the growth of the plant. “Ilyeop” grows vigorously and yields high quality leaf with higher amount of the next harvesting leaves composed with a check cultivar, “Ipdeulkkae1”. “Ilyeop” has five days of earlier seed maturity (Oct. 24) than that of “Ipdeulkkae1” under natural condition, less chance of frost damage is expected. The flowering date of “Ilyeop” is same with that of “Ipdeulkkae1” in winter cultivation with night break treatment.

A New Leaf Vegetable Perilla Cultivar, "Bora" with Purple Backside Leaf Color

Chan Sik Jung,Yil Chan Kwon,Ki Won Oh,Byung Joo Kim,Suk Bok Pae,Yong Ho Kwack,Hee Seang Park,Hyeon Tae Kim,Geum Suk Kim,Geon Jae Lim,Su Dong Kim,Huhn Pal Moon,Sung Tack KimDo 한국육종학회 2007 한국육종학회지 Vol.39 No.1

“Bora” is a new perilla (Perilla frutescens (L.) Britton) cultivar developed from a cross between Ipdeulkkae1 and YCPL199 at National Yeongnam Agricultural Experiment Station, RDA, in 2001. Purple backside leaf color is one of the most important characteristics for the high quality perilla leaf. “Bora” has purple backside leaf color in all climate condition, while a check variety, Ipdeulkkae1 has too light color during summer season or in high temperature condition. “Bora” matures at October 18th and has 79 cm of the stem length, shorter than that of Ipdeulkkae1. Although leaf yield is 11% less than that of a check variety Ipdeulkkae1, the harvested leaf number of “Bora” is similar with that of Ipdeulkkae1. The cultivar is appropriable in all area of Korea for the leaf harvesting cultivation whereas it is restricted to southern part of Korea South Gyeongsang and South Jeola provinces, for the seed harvesting cultivation.

무논조건에서 벼 최아 , 침종종자의 파종깊이에 따른 입모 및 모 초기생육

김상열,박성태,황정동,문헌팔,펭 사오빙 한국국제농업개발학회 2001 韓國國際農業開發學會誌 Vol.13 No.3

벼 무논 또는 담수직파시 사용종자 및 적정 파종깊이 범위 구명의 기초자료를 얻고자 최아종자(1∼2㎜)와 침종종자를 0∼3.5㎝(0.5㎝ 간격) 깊이로 파종하여 출아일수, 입모율, 중배축장, 파종후 20일 초장, 엽수 등 생육상황을 조사분석한 결과를 요약하면 다음과 같다. 1. 출아일수는 2∼10일로 최아종자가 침종종자보다 평균 1.4일이 빨랐고, 최아 및 침종종자 다같이 파종깊이가 깊어질수록 출아가 늦었다. 2. 입모율은 최아종자 30∼75%, 침종종자 61∼72%로서 파종깊이 0㎝, 0.5㎝에서는 사용종자간에 별차이가 없었으나 파종깊이 1.0㎝ 이상에서 입모율은 최아종자는 파종깊이가 깊어질수록 크게 떨어 졌으나 침종종자는 파종깊이 간에 별차이가 없었다. 3. 중배축장은 최아종자 및 침종종자 다같이 파종깊이 0.5㎝까지는 2.5㎜ 미만이었으나 점차 파종깊이가 깊어질수록 길어졌고, 사용종자 및 파종깊이 간에 통계적으로 유의차도 인정되었다. 4. 파종후 20일 모 생육은 최아종자가 침종종자보다 초장이 길고 엽수도 많았으며 건물중도 무거웠다. 파종깊이 별로는 최아종자와 침종종자 다같이 파종깊이 0.5㎝에서 초장과 건물중이 가장 길고, 무거웠으며, 파종깊이가 점차 깊어질수록 초장이 짧아지고 건물중도 떨어졌다. 영수는 파종깊이가 깊어질수록 적어졌으나 큰 차이는 없었다. To obtain a basic information on kind of seeds and an optimum seeding depth needed for wet and water seeding methods, the effect of pregerminated and soaked seeds of rice an the days to emergence, percentage of seedling emergence, mesocotyl length in association with different seeding depths were investigated in pot experiment at the International Rice Research Institute, Philippines. Days to emergence was ranged from 2 to 10 days in the two seed treatments but it was shorter in the pregerminated seed than the soaked one. Days to emergence was delayed as the seeding depths deepened. Percentage of seedling emergence in pregerminated seed were 30∼75% and it was 61∼72% in the soaked one. The percentage of seedling emergence of the two seed treatments was similar up to 0.5㎝ depth but over 1㎝ depth, significant reduction of seedling emergence was observed only in the pregerminated seed but not in the soaked one. Mesocotyl length was recorded less than 2.5 ㎜ up to 0.5㎝ seeding depth in both the pregerminated and soaked seeds but it was longer as seeding depth increases. In addition, statistical significance between seed treatments and seeding depths was noted. The seedling performance at 20 days after seeding such as seedling height, leaf number and dry weight was generally higher in the pregerminated seed treatment as compared with that in the soaked seed one. Base on the seeding depth, seedling performance was higher in 0.5cm seeding depth than other seeding depths. The result indicates that a pregerminated seed is recommended like the water seeded rice when seeding depth is 0-0.5㎝ but a soaked one above 1㎝ depth in wet seeded rice.