일반논문 : 일실된 『姜氏甘藷譜』에 대하여 -자료소개 및 그 실학사적 의의-

( Soo Kyung Oh ) 한국실학학회 2013 한국실학연구 Vol.0 No.26

『강씨감저보』는 현재 그 실물이 일실(逸失)된 것으로 전해진다. 그러나 이 책은 일실된 것이 아니고, 연경재 성해응(成海應; 1760~1839)이 지은 『연경재서종(硏經齋書種)』이라는 책 뒤에 『감저보(甘藷譜)』라는 이름으로 부록되어 현전(現傳)한다. 그러므로 이 책은 독립된 한 권의 책으로 존재하는 것이 아니라, 부록으로 전해진 셈이다.『감저보』는 강필교(姜必敎; 1722~1798)가 편집(編輯)한 것으로 되어 있다. 강필교는 동래부사를 지낸 강필리(姜必履; 1713~1767)의 친동생이다. 동생 강필교는 형님 강필리가 생전에 일본사람들에서 구입한 『감저종식방』을 참고하여 만든 『저보(藷譜)』라는 책을 저본(底本)삼아, 『감저보』라는 새로운 책을 편찬한 바, 이것을 후대 사람들이 강씨형제가 공동으로 지은 책이라는 뜻으로 『강씨감저보』라고 일컬은 것으로 짐작된다. 강필리가 지은 『저보』라는 책이 현존하지 않아 단언하기는 어렵지만, 동생 강필교의 『감저보』를 통해 이 책의 내용은 대략 짐작할 수 있는 바, 이 책은 고안고(故案考), 속록고(續錄考), 기문고(記聞考), 험시고(驗試考), 부록언해(附錄諺解) 등으로 나누어져 있다. 동생 강필교는 형님 강필리의 이 『저보』를 중심으로 여기에다 자신의 감저종식방법을 보완하여 좀 더 완벽한 감저[고구마] 재배방법을 기술하고자 하였던 바, 그는 이 『감저보』를 고실고(故實考), 속록고, 기문고, 험시고, 부록언해 등으로 체재를 나누어 설명하였다. ‘고안고’를 ‘고실고’로 바꾼 것을 제외하고는 강필리의 『저보』와 꼭 같은 이름으로 그 편차가 이루어져 있는 셈이다. 선종한(宣宗漢)·김장순(金長淳) 공저의 『감저신보(甘藷新譜: 일명 『金氏甘藷譜』)』는 강필리의 『저보』에 나온 감저종식방법이 오류가 많아 이를 바로잡기 위해 새로운 감저재배서를 만들었다고 한 바 있다. 실제로 『김씨감저보』는 「강씨감저보변와(姜氏甘藷譜辯訛)」라는 항목을 두어 강필리가 지은 『저보』의 잘못된 점을 하나하나 지적하고 있는 바, 선종한과 김장순은 이 『저보』를 『강씨감저보』라고 생각한 것이다. 그러나 이는 일본사람들이 전해준 감저종식방을 토대로 만든 강필리의 『저보』일 뿐, 강필교가 다시 수정보완한 『감저보』(일명 『강씨감저보』)를 말한 것은 아닌 것으로 생각된다. 따라서 오늘날 우리들이 일실된 것으로 알고 있는 『강씨감저보』는 바로 강필교가 작고한 형님의 『저보』를 저본삼아 다시 수정보완한 『감저보』를 말하는 것으로 보아야 한다. 결국 『강씨감저보』는 강필리·강필교 형제의 공동저서인 셈이다. 『강씨감저보』는 우리나라 고구마 재배서의 원조인 점에서 무엇보다 중요하게 거론되어져야 한다. 이 책의 뒤를 이어 만들어진 모든 감저재배서, 즉 서호수(徐浩修)의 『감저조(甘藷條)』(1799), 김장순·선종한의 『김씨감저보(감저신보)』(1813), 서경창(徐慶昌)의 『종저방(種藷方)』(1813)과 『감저경장설(甘藷耕藏說)』(1813), 조성묵(趙性默)의 『종감저법(種甘藷法)』(1832), 서유구(徐有구)의 『종저보(種藷譜)』(1834)들이 모두 이 『강씨감저보』의 재배경험을 기반하여 만들어진 것인 바, 우리의 농학사에서 차지하는 이 책의 의의는 그 어떤 저서보다 중요하다고 생각된다. 『Kang`s Sweet Potato Book(姜氏甘藷譜)』 is told to this day that the genuine article is lost. However, the book is not lost. It is in existence as the appendix, titled 『Sweet Potato Book(甘藷譜)』, to the 『Yeonkyungjae Seojong(硏經齋書種)』 written by Yeonkyungjae Seong, Hae-Eung(成海應; 1760~1839). Therefore this book is not an independent book, but has been passed down as an appendix. 『Sweet Potato Book(甘藷譜)』 is said to be edited by Kang, Pill-Kyo(姜必敎; 1722~1798). Kang, Pill-Kyo is a brother of Kang, Pill-Lee(姜必履; 1713~1767), who served as the ward head of Dong-nae. Kang, Pill-Lee wrote 『Potato Book (藷譜)』 using 『Gamjeojongsikbang(甘藷種植方)』 he had bought from Japanese. And his younger brother Kang, Pill-Kyo wrote the new book 『Sweet Potato Book(甘藷譜)』 based on his older brother`s. It is thought to be called 『Kang`s Sweet Potato Book(姜氏甘藷譜)』 by future generations meaning that the Kang brothers are the co-authors. Because 『Potato Book (藷譜)』 is not in existence we cannot assure though, guessing from the younger brother Kang, Pill-Kyo`s 『Sweet Potato Book(甘藷譜),』 『Potato Book (藷譜)』 is consisted of 「Goango(故案考)」, 「Soklocgo(續錄考)」, 「Kimungo(記聞考)」, 「Humsigo(驗試考)」 and 「Bulockunhae (附錄諺解)」. Kang, Pill-Kyo pursued to supplement his older brother`s 『Potato Book (藷譜)』 with his own seeds gathering method. So he systematized 『Sweet Potato Book(甘藷譜)』 as 「Kosilgo(故實考)」, 「Soklocgo」, 「Kimungo」, 「Humsigo」 and 「Bulockunhae」. The contents and their order are the same as Kang, Pill-Lee`s 『Potato Book (藷譜)』 except switching 「Goango(故案考)」 with 「Kosilgo(故實考)」. Seon, Jong-Han(宣宗漢) and Kim, Jang-Soon(金長淳) co-wrote 『Sweet Potato New Book(甘藷新譜: so-called 『Kim`s Sweet Potato Book(金氏甘藷譜)』 and it aimed to correct the mistakes in sweet potato seeds gathering method presented in Kang, Pill-Lee`s 『Potato Book (藷譜)』. 『Kim`s Sweet Potato Book(金氏甘藷譜)』 has an item titled 「Kang`s Sweet Potato Book Corrections(姜氏甘藷譜辯訛)」 and points out mistakes one by one from Kang, Pill-Lee`s 『Potato Book (藷譜)』. Seon, Jong-Han(宣宗漢) and Kim, Jang-Soon(金長淳) seem to have thought this 『Potato Book (藷譜)』 as 『Kang`s Sweet Potato Book(姜氏甘藷譜)』. However, it was only Kang, Pill-Lee`s 『Potato Book (藷譜)』, which was based on the 『Gamjeojongsikbang』 he had bought from Japanese, not the 『Sweet Potato Book(甘藷譜)』(so-called 『Kang’s Sweet Potato Book(姜氏甘藷譜)』). Hence, 『Kang`s Sweet Potato Book(姜氏甘藷譜)』, which is thought to be lost, seems to be Kang, Pill-Kyo`s 『Sweet Potato Book(甘藷譜)』 which was corrected and complemented from his older brother`s 『Potato Book (藷譜)』. Consequently, Kang, Pill-Lee and Kang, Pill-Kyo bothers are the co-authors of 『Kang`s Sweet Potato Book(姜氏甘藷譜)』. 『Kang`s Sweet Potato Book(姜氏甘藷譜)』 is very important as the originator of sweet potato book in Korea. All following sweet potato books such as Seo, Ho-Soo(徐浩修)`s 『Sweet Potato Article(甘藷條)』(1799), Seon, Jong-Han(宣宗漢) and Kim, Jang-Soon(金長淳)`s 『Kim`s Sweet Potato Book(金氏甘藷譜)』(1813), Seo, Kyung-Chang`s(徐慶昌) 『Jonggebang (種藷方)』(1813), 『Kamgekyunggjangsul(甘藷耕藏說)』(1813), Cho, Seong- Mook(趙性默)`s 『Jongkamgepub(種甘藷法)』, Seo, Yoo-Gu(徐有구)`s 『Seed Potato Book(種藷譜)』(1834) are based on the growing experience from this Kang`s 『Sweet Potato Book(姜氏甘藷譜)』. The significance of this book in Korean agricultural history is foremost among other books.

생약제제인 이공산(異功散)의 Cisplatin 유도 신장독성 보호 및 항산화 효과

Lee, Kyung-Tae,Ahn, Kyoo-Seok,Chang, Sung-Goo,Oh, Soo-Myung,Jung, Jee-Chang 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Kyung-Tae Lee, Kyoo-Seok Ahn¹, Sung-Goo Chang², Soo-Myung Oh²and Jee-Chang Jung²¹College of Pharmacy, ²Oriental Medicine and ³College of Medicine, and East-West Medical Reserch Institute, Kyung Hee University, Seoul, Korea. Preventive and Antioxidative Effects of Crude Drug Preparation(E-kong-san) on Cisplatin Induced Nephrotoxicity. Proceedings of International Symposium on East-West Medicine, Seoul. 201-211, 1999. -Nephroprotective effects of a crude drug-prearation (E-kong-san) were determined from cisplatin on rabbit kidney proximal tubule and human renal cortical cells by MTT assays and sustained glucose consumption on ciplatin-induced human renal cortical tissue. Levels of creatinine and blood ure nitrogen(BUN) in serum after administration of cisplatin(0.75mg/kg,i.p.) to E-kong-san(0.75g/kg/day,p.o.)-pretreated rats were markedly lower compared to those of cisplatin-treated rats. Moreover, the administration of E-kong-san significantly inhibited the loss of body weight of cisplatin injected rts. These findings suggest that E-kong-san on the cisplatin induced nephrotoxicity led us to investigate whether the effect of this water extract was a result of anti-oxidation. E-kong-san showed strong free radical scavenger activities on 1,1-dipheny1-2picrylhydrazil(DPPH) radical and xanthine/xanthine oxidase(XOD) generated superoxide anion radical(O2-). We further studied the effects of E-kong-san on lipid peroxidation in rat liver microsomes induced by enzymatic and nonenzymatic methods. E-kong-san exhibited significant inhibition on both ascorbic acid/Fe2+and ADP/NADPH/Fe3+ induced lipid peroxidation in rat liver microsomes. Based on these results, we suggest that-E-kong-san attenuate the cisplatin induced cytotoxicity and its mechanism can be eplained by antioxidant.

Properties of inverse nonpremixed pure O₂/CH₄ coflow flames in a model combustor

Choi, Sun,Kim, Tae Young,Kim, Hee Kyung,Koo, Jaye,Kim, Jeong Soo,Kwon, Oh Chae Elsevier 2015 ENERGY Vol.93 No.1

<P><B>Abstract</B></P> <P>In order to evaluate the potential of oxy-combustion of inverse nonpremixed coflow flames using a clean fuel to improve the combustion and emission characteristics compared with the normal coflow flames using air, the fundamental properties of inverse nonpremixed pure oxygen (O<SUB>2</SUB>)/methane (CH<SUB>4</SUB>) coflow flames in a model combustor are experimentally investigated. The combustion stability (extinction) limits, structure and nitrogen oxide (NO<SUB>x</SUB>) emissions of the inverse coflow flames in the quartz-windowed combustion chamber with a single shear coaxial injector and a fully opened exhaust nozzle are measured using OH<SUP>∗</SUP> chemiluminescence, a schlieren imaging system and a gas analyzer. Results show four distinct stability regimes and limits: the attached flame regime, the near-blowout flame regime, blowout limits and blowoff limits. The direct flame and OH<SUP>∗</SUP> chemiluminescence images confirm the cooling effects of chamber walls that cause no steady liftoff flame and only the near-blowout flame. The extinction limits of the inverse CH<SUB>4</SUB>/O<SUB>2</SUB> coflow flames are extended compared with the normal CH<SUB>4</SUB>/air coflow flames and reasonable levels of NO<SUB>x</SUB> emissions are observed, which supports that oxy-combustion of the inverse nonpremixed coflow flames using the clean fuel is acceptable for practical application, providing a useful database for modeling the flames in the confined chamber.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Extended stability limits of inverse nonpremixed O<SUB>2</SUB>/CH<SUB>4</SUB> coflow flames are found. </LI> <LI> Stable, attached flames and oscillating, near-blowout flames are observed. </LI> <LI> Direct flame and OH<SUP>∗</SUP> chemiluminescence images indicate no steady liftoff flame. </LI> <LI> Reasonable levels of NO<SUB>x</SUB> emissions are observed. </LI> <LI> Inverse nonpremixed O<SUB>2</SUB>/CH<SUB>4</SUB> coflow flames are acceptable for practical applications. </LI> </UL> </P>

붕장어의 크기에 따른 지방질성분 및 아미노산 조성의 비교

오광수,문수경,이응호 國立統營水産專門大學 附設 水産科學硏究所 1989 수산과학연구소보고 Vol.1 No.-

우리나라에서 생선회로 가장 많이 먹고 있는 붕장어를 대형, 소형의 크기별로 구입하여 지방질 성분 및 아미노산 조성을 분석, 비교하였다. 대형 붕장어는 소형어에 비하여 수분 및 조단백질 함량이 다소 많은 반면 조지방 함량은 4.2%로서 소형 붕장어의 9.8%에 비하여 적었다. 대형 및 소형 붕장어의 중성지방질 함량은 각각 총지방질의 89.7%, 93.3%를 차지하고 있었으며 인지방질은 8.9%, 5.2% 함유되어 있었다. 총지방질의 지방산 조성은 대형 및 소형 붕장어 모두 18:1을 주체로 한 모노엔산이 47.1%, 50.3%로 함량이 가장 많았고 다음으로 22:6이 주가 된 폴리엔산이 33.4% 및 25.2%, 16:0을 주체로한 포화산은 19.5% 및 24.5% 함유되어 있었다. 중성 및 당지방질은 18:1을 주성분으로 한 모노엔산의 조성비가 높은 반면 인지방질은 폴리엔산의 조성비가 높았다. 대체로 대형 붕장어는 소형어에 비해 20:5, 22:5, 22:6 과 같은 고도불포화 지방산의 함량이 많았고 소형 붕장어는 16:0, 16:1, 18:1 등의 포화산 및 모노엔산이 많았다. 총 아미노산량은 대형 붕장어가 17022.1mg/100g, 소형어가 45409.4mg/100g 이었고, aspartic acid, glutamic acid, isoleucine, leucine, lysine, arginine등이 주요 구성 아미노산 이었다. 소형 붕장어에는 대형어에 비해 aspartic acid, glutamic acid가 많이 함유되어 있었고, 대형 붕장어는 cystine, methionine, tyrosine, phenylalanine의 함량이 많았다. This experiment was carried out to compare the difference of lipid components, amino acid composition by size of sea eel. Large sea eel(length 57.5-60.0cm, weight 269.5-300.0g) was higher in moisture and crude protein content, and lower in crude lipid content than those of small sea eel(28.8-31.2cm, 39.5-43.6g). Total lipid(TL) of large and small sea eel were consisted of 89.7%, 93.3% neutral lipid, 8.9%, 5.2% phospholipid, and 1.4%, 1.5% glycolipid, respectively. In fatty acid composition of TL, large fishes revealed higher content in polyunsaturated fatty acids such as 20:5, 22:5, 22:6, while lower in saturates and monoenes such as 16:0, 16:1, 18:1 than those of small fishes. The major fatty acids of these fishes were generally 18:1, 16:0, 22:6, 16:1 and 20:5 in order. Total amino acid contents of large and small sea eel were 17022.7mg/100g, 15409.4mg/100g. And the main amino acids were aspartic acid, glutamic acid, isoleucine, leucine, lysine, arginine. Large fishes was higher in cystine, methionine, tyrosine, phenylalanine content, while lower in aspartic acid, glutamic acid than those of small ones.

정어리 냉동고기풀의 품질개선에 관한 연구

오광수,문수경,이응호,김복규 國立統營水産專門大學 附設 水産科學硏究所 1994 수산과학연구소보고 Vol.5 No.-

정어리 냉동고기풀의 최적 가공조건은 원료 정어리를 알칼리 염수수세한 후 정어리 육에 대해 분리 대두단백질:물:정제 정어리유(1:5:2.6)로 만든 유화커드를 20%, 솔비톨 4%, 설탕 4%, 중합인산염 0.2% 및 항산화제로서 에리소르빈산나트륨을 0.1% 첨가하여 고기갈이한 후 -35℃에서 급속동결시켜 carbon box로 포장하여 동결저장한 제품이 가장 좋았다. 본 제품의 수분 함량은 73.3%. 조단백질 15.0%, 조지방은 6.9%였으며, 생균수는 1.6~l.8X10^4/g으로 동결저장 중 변화는 거의 없었다. 제품의 주요 구성지방산은 16:0, 16:1, 18:1, 20:5 및 22:6 등으로 고도 불포화지방산이 47.7% 함유되어 있었다. 동결저장 중 120일 동안 제품의 물성, 지질산화 및 지방산의 변화 등을 측정한 결과, 유화커드와 에리소르빈산나트륨을 첨가함으로서 동결저장 중 단백질 변성, 지질의 산화 및 변색을 효율적으로 억제 시킬 수 있었으며, 품질이 안정하게 유지되었다. 한편, 본 시제품과 명태 냉동고기풀을 혼합하여 가공한 어묵의 품질을 측정한 결과, 어묵의 품질에 큰 저하됨이 없이 명태 고기풀을 본 정어리 고기풀로 40%까지 대체할 수 있었으며 어육의 풍미를 갖는 연제품을 가공할 수 있다는 결론을 얻었다. The processing conditions and quality of sardine surimi were examined: Raw sardine meat was separated, washed in 0.2% NaHC0_3 and 0.15% NaCl solution, and then dewatered by centrifuge. The dewatered sardine meat was chopped, mixed with 20% emulsion curd (soybean protein : water : refined sardine oil= 1 : 5. 2.6), 4% sorbitol, 4% sucrose, 0.2% polyphosphate and 0.1% sodium erythorbate by stone mortar. The mixed sardine meat was frozen with contact freezer, packed in carton box and then stored at -25±2℃. The moisture, crude protein and lipid contents of the sardine surimi product was 73.3%, 15.0% and 6.9%, respectively. Fatty acid composition of product consisted of 28.8% of saturates, 24.3% of monoenes and 47.7% of polyenes and the major fatty acids were 16:0, 20 5, 18:1, 22:6 and 16:1. The results of changes in POV, TBA value, fatty acids, texture and sensory score of products during frozen storage showed that lipid oxidation and freeze denaturation of product could be retarded, and flavor enhanced by addition 20% emulsion curd and 0.1% sodium erythorbate. In an attempt to apply sardine surimi in producing surimi-based product, it was concluded that Pollack surimi could be substituted with sardine surimi up to 40% without showing any significant changes in texture and taste of surimi-based product.

영지버섯 생장점 단백다당체 GLB의 대식세포 활성화 효과

오정연,조경주,정수현,김진향,Lillehoj, H.S.,정경수 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-

In the previous study we described the antitumor activity of GLB. a protein-polysaccharide fraction of the growing tips of Ganoderma lucidum, against sarcoma 180 solid tumor in ICR mice. In this study we investigated the stimulatory activity of GLB on macrophages. When analyzed using a flow cytometer. GLB (100 ㎍/㎖) was found to increase the phagocytic activity of the BALB/c mouse peritoneal macrophages as well as chicken macrophage BM2CL cells against FTTC-labeled C. albicans by 55.2% and 21.2%, respectively. GLB also increased the spreading and the expression of MHC class Ⅱ molecules of BM2CL cells as well as the mouse peritoneal macrophages. From these results, it is clear that GLB is a strong stimulator to the macrophages.

果采類 殘留性 農藥의 突然變異 誘發性

오명철,오창경,김성홍,고용구,김수현 濟州大學校工科大學産業技術硏究所 1995 尖端技術硏究所論文集 Vol.6 No.-

Salmonella typhimurium TA 균주를 이용하여 과채류 재배에 많이 사용되는 12종의 잔류성 농약에 대한 돌연변이 유발성을 검정하였다. 본 연구에 사용된 12종의 농약 중 Tedion, Monopho, Danoton, Ometon 및 Captan에 대한 돌연변이 유발성은 강하였고, Thalonil, Prosing, EPN, Phentoate, Dicopol 및 Captan에 대한 돌연변이 유발성은 중간 정도였으나, Dicopol은 돌연변이 유발성이 없었다. TA98에서, Monopho와 Danoton은 강한 돌연변이 유발성을 나타내었고, Thalonil, Prosing, EPN, Phentoate, Parathion 및 Sappiran은 중간정도의 돌연변이 유발성, Danoton은 약한 돌연변이 유발성을 나타낸 반면, Dicopol과 Sappiran은 돌연변이 유발성을 나타내지 않았다. 한편, TA100에서는 Tedion, Danoton, Ometon 및 Captan이 강한 돌연변이 유발성을, Thalonil과 Monopho는 중간 정도의 돌연변이 유발성, Prosing, Phentoate, Parathion 및 Sappiran은 약한 돌연변이 유발성을 보인 반면, EPN과 Dicopol은 돌연변이 유발성이 없었다. 따라서, EPN은 구조이동성 돌연변이를, Sappiran은 염기치환성 돌연변이를, 그리고 이들과 Dicopol을 제외한 나머지 9종의 농약은 구조이동성 및 염기치환성 돌연변이를 일으키는 돌연변이원임을 확인하였다. Twelve residual pesticides which applied on the fruits and vegetables cultivation were tested for mutagenic activity using Salmonella typhimurium TA strain. Mutagenic activities against Tedion, Monopho, Danoton, Ometon and Captan of twelve pesticides tested were strong, Thalonil, Prosing, EPN, Phentoate, Dicopol and Captan were medium, and Dicopol were no. Tedion, Monopho and Danoton showed strong mutagenic activities on TA98, Thalonil, Prosing, EPN, Phentoate, Parathion and Sappiran showed medium, and Danoton showed weak, while Dicopol and Sappiran showed no. At the other hand, Tedion, Danoton, Ometon and Captan showed strong mutagenic activities on TA100, Thalonil and Monopho showed medium and Prosing, Phentoate, Parathion and Sappiran showed weak, while EPN and Dicopol showed no. Therefore, EPN identified mutagen which induced only frameshift mutation, Sappiran was only base-substitution, and nine except these and Dicopol of twelve pesticides tested were mutagens which induced both frameshift and base-substitution mutation.

TMPFS/Polysiloxane 혼합물의 표면특성

오경수,범정철,하종욱,박인준,소원욱,이수복 한국공업화학회 2004 응용화학 Vol.8 No.1

We report on the surface proputies of the films composed of polysiloxane and trimethoxyperfluorosilane(TMPFS). In this study, the PFS was introduced in order to enhance soil-proof property of siloxane polymer. Surface properties of the mixture were investigated. Contact and sliding angle measurements were done in order to investigate the anti-soil, and soil release properties, respectively. The surface free energy of siloxane polymer was decreased remarkably by incorporation of small quantity of PFS with the increment of contact angle and decrease of sliding angle. The TMPFS/Polysiloxane mixture film may provide a great opportunity for the antisoil applications.

환기시스템의 효율 향상을 위한 후드 내 유해물질 포착속도 개선에 관한 연구

오율권,김영선,박경수 朝鮮大學校 機械技術硏究所 2007 機械技術硏究 Vol.10 No.1

Most of the hood maximize on capture velocity concentrate in inhalation capacity of harmful materials on hood of center. But, decrease generally ventilation system efficiency because, the edge of hood decrease capture velocity of harmful materials. So, development on the gas-guidance-device for increase of capture velocity of harmful materials in hood increase generally ventilation system efficiency. In this study, flow in hood doing visibility after numerical analysis using the Phoenics 3.1 on commercial code of heat and fluid using finite volume method. And, boundary conditions establish the same condition as work space that it is temperature is 20 degrees, pressure in 1 atm, velocity in duct is 6.85m/s, diameter is 400mm. Also, gas-guidance-device draw optimum shape as a result comparison and analysis as being numerical analysis of variety shape. As the result of study, compare hood have gas-guidance-device with hood have no gas-guidance-device identify increase on harmful materials capture velocity. Also, gas-guidance-device identify best inhalation efficiency in hood when it is 125mm wide and a ratio of 4 to 6 on side. So, safety of worker and work environment improvement expect helped as a result remove effective on harmful materials in work space and cut down on expenses of occurrence when the inhalation volume again design for efficiency improvement of ventilation system.

골수강내 금속정을 이용한 경골 근위간부 골절의 치료 : AO 골절형과 Poller 나사 사용 유무에 따른 분석 Analysis According to AO Classification and the Poller Screw

오창욱,김성중,전인호,경희수,박병철,인주철,김경훈,우연기 대한골절학회 2004 대한골절학회지 Vol.17 No.2