http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
초고속 광통신용 Avalanche photodiode의 제작 및 특성에 관한 연구
유지범,박찬용 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2
We review the characteristics of Avalache photodiode(APD) for long haul and high bit- rate optical fiber communication system including basic operating principle, excess noise factor, and bandwidth, and we also summarize recent progress. Separate absorption garding, charge and multiplication APD with charge plate layers instead of guard ring was designed and fabricated using metalorganic chemical vapor deposition and reactive ion etching technique. APD shows 37∼48V of breakdown voltage and very low dark current less than 10 nA at 90% of breakdown voltage. Receiver consisting of APD and Ga As pre - amplifier shows sensitivity of - 33.6dBm in the application of the pseudorandom 2^23-1 non- returen- to- zero(NRZ) patterns at 10^-9 bit error rate(BER).
姜龍太,全裕燦,柳在益 東亞大學校 大學院 1986 大學院論文集 Vol.11 No.-
This study has been investigated about the actual applicational propriety for the theoretical equation which have been proposed, the relationship between h/a and factors, and the determination of disc area with h/a. The results carried out the experiment are the following: 1. When the final settlement tank was used, in the case of r=0.1 optimum submerged rate was 45% and Optimum Disc interval was 1cm. 2. Bod removal efficiency was inversely proportional to the submerged rate and the Disc interval. 3. Saturation constant, Area capacity constant, Microbial maximum growth rate, Yield constant, Attached active biomass:36 ㎎/ℓ, 90.3g/㎡·d, 3,9, 0.79, 19.06g/㎡, respectiverly. 4. The experiment value well corresponded to the Korneegay equation. 5. There was nearly no the substrate utilization by suspended microorganism because the experimental value well corresponded to the korneegay equation.
姜龍太,全裕燦,趙奉衍 東亞大學校 1986 東亞論叢 Vol.23 No.1
This study, through the filtration experiment by biofilm, was explained the operation for each processes in its system, and were investigated the actual(filtration experiment by biofilm) applicational propriety for the existing headloss quation and the correlation of factors. The results of the experiment are the following. 1. When the raw water quality was reached to standars of the treated water quality in about a week, the average removal rates of SS, BOD and COD were 92%, 91% and 74%, respectively. 2. In case that the experimental conditions were water quantity, 0.67㎥/day, BOD 100㎎/ℓ, oxygen absorption efficiency, 16%, air quantity was 15N㎥ and showed high BOD removal rate. 3. The backwashing water quantity was required the twice or the three times of the packed volume. 4. When thd BOD loading was less then 5 ㎏/㎥·day, the BOD removal rate showed more than 95%. 5. The headloss of this experiment was approximated to the value obtained from substiting the filtration Model Ⅰ for the Kang's headloss equation corrected for the Kozeny-Carman's.
경구면역을 통한 항원 특이적 IgA 항체 합성에 있어 Cholera Toxin과 Alginate-Microsphere의 효과
송민형,유진수,권명상,성승룡,김용희,권익찬,정서영,양재명,김평현 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.3
Secretory (S-IgA) isotype antibody (Ab) is known to play an essential role in the primary defense against various infectious agents in mucosal tissue. However, it has been mostly unsuccessful in the induction of antigen (Ag)-specific IgA Ab response in this site by peroral vaccination. In the present study, we investigated the effect of cholera toxin (CI) as a mucosal adjuvant and alginates-microspheres as a carrier on BSA-specific IgA Ab response in gut-associated lymphoid tissue`(GALT). Peroral immunization of BSA plus CT conferred a great BSA-specific IgA response but IgG response on intestinal fluid (IF). In contrast, intraperitoneal immunization of BSA with Freund's adjuvant readily induced BSA-specific IgG response but IgA response in IF. Further, number of CT specific IgA-secreting cells was substantially increased in mesenteric lymph node when CT-encapsulated-VI alginates-microspheres was administered perorally. Taken together, these results indicate that peroral immunization of soluble antigen in combination of CT or microspheres significantly enhances antigen-specific IgA response in GALT.
한상우,유진홍,권순석,김성훈,박지찬,홍은정,최경성,박용완,장준희,안지원,박유경,강지영,박상미,신완식 대한감염학회 2004 감염과 화학요법 Vol.36 No.5
We experienced a 25 year-old male patient with typhoid fever complicated with massive hemoptysis. Pulmonary complication in typhoid fever is very rare and to our knowledge, there has been no report of hemoptysis as a main cause of death with this disease. We herein report a rare case of typhoid fever.
高英豪,金勇熙,全裕燦 慶南大學校 附設 工業技術硏究所 1987 硏究論文集 Vol.5 No.-
본 연구는 하수 처리방법에 있어 각 처리방법별, 처리수량별 부지 면적과 건설비, 유지 관리비에 대한 보다 효율적이고 경제적인 하수 처리방법 선정에 도움이 되고자 함이 본 연구의 목적이다. 결론을 요약하면 다음과 같다. 1. 부지 면적의 경우, 생물막여과법이 처리수량에 관계없이 타 방법에 비해 가장 경제적이다. 2. 건설비의 경우, 처리수량이 500m³/day에서는 산화구법, 회전원판법, 생물막여과법이 경제적이고, 생물막여과법의 경제적 처리 범위는 5,000m³/day이하이다. 3. 유지관리비의 경우, 표준 활성오니법에 비해 회분식 활성 오니법, 접촉 폭기법, 생물막여과법이 유지 관리에 유리하며, 8,000m³/day 경우 접촉 폭기법이 가장 유리하다. This study is aimed at finding efficient sewage treatment method of various systems and capacities, areas for sewage treatment, construction costs, maintenance costs. Conclusions are followed as below; 1. In the case of area for sewage treatment, biological aerated filter system is concluded as economical method. 2. In the case of construction cost, 500m³/day treatment amount, oxidation ditch process, rotating biological contactors, biological aerated filter system are regarded as efficient method. 3. In the case of maintenance cost, sequencing batch reactors, submerged filter process, biological aerated filter system require less cost than conventional activated sludge process.
Yong, Chul-Soon,Kim, Yong-Il,Park, San-Man,Kwon, Rham,Han, Hong-Hee,Park, Jung-Gil,Yang, Chan-Yoo,Kim, Jung-Ae,Yoo, Bong-Kyu,Rhee, Jong-Dal,Choi, Han-Gon The Pharmaceutical Society of Korea 2006 Archives of Pharmacal Research Vol.29 No.10
To develop a $^{13}C-urea-containing$ capsule for more economic and sensitive diagnosis of Helicobacter pylori infection, the $^{13}C-urea-containing$ capsules were prepared with various additives such as polyethylene glycol, microcrystalline cellulose, sodium lauryl sulfate and citric acid. Their dissolution test and $^{13}C-urea$ Breath Test in human volunteers were then performed. Polyethylene glycol increased the initial dissolution rates of urea and difference ${\sigma}$ $^{13}C$ values from $^{13}C-urea$, while microcrystalline cellulose and sodium lauryl sulfate decreased them. Irrespective of addition of citric acid, the compositions with polyethylene glycol showed higher values from $^{13}C-urea$ compared to a commercial 76 mg $^{13}C-urea-containing$ capsule due to higher initial dissolution rate. The capsules with 38 mg $^{13}C-urea$ and 1.9 mg polyethylene glycol, which showed higher Helicobacter pylori-positive value of about $8{\textperthousand}$ at 10 min, improved the sensitivity of $^{13}C-urea$ in human volunteers. Thus, the $^{13}C-urea-containing$ capsule with polyethylene glycol would be a more economical and sensitive preparation for diagnosis of Helicobacter pylori infection.