정신의학적 증상을 수반한 Klinefelter 증후군 1예

박정주,허갑범,이홍식 大韓神經精神醫學會 1984 신경정신의학 Vol.23 No.4

The recent studies on Klinefelter's syndrome, which was first described by Klinefelter, et al. in 1942, revealed that intellectual impairment and neuropsychiatric disorders were combined in many cases of Klinefelter's syndrome. The authors present a 15 year old male patient with confirmed diagnosis of Klinefelter's syndrome, who showed various secondary psychiatric manifestations such as severe depression, anxiety, self and sexual identity confusion, various psychosomatic symptoms and adjustment problems with poor interpersonal relationship. The variety of psychiatric manifestations accompanying Klinefester's syndrome are reviewed from the literature. Comprehensive psychiatric evaluation and treatment via consultation-liaison psychiatry is strongly recommended for klinefelter's syndrome with psychiatric manifestations.

정화조 병합처리를 통한 가정오수 정화

박현건,성낙창,김형갑,서주수,이상용 진주산업대학교 1991 論文集 Vol.29 No.-

1. 單獨處理에 비해 倂合處理가 汚染負荷量으로 볼때 평균 약 31.1%의 더 높은 제거 효율을 얻을 수 있었다. 2. 下水道 流入 BOD 평균농도는 單獨處理時에 BOD 147.5㎎/l~160㎎/l정도인데 비해 倂合處理는 BOD 91㎎/l~100.8㎎/l을 나타내었다. 3. 家庭汚水를 무단방류하는 것보다 倂合處理를 하므로서 水系의 水質改善을 기여하였다. 4. 가능한 淨化槽는 실제 住居人口數보다 容量이 큰 것을 設置토록 하는 것이 좋다. This sutdy was performed in order to evalulate the purification of domestic sewage through single(nightsoil) and combined(nightsoil+domestic sewage) treament. The result of single and combined treatment are as follows: 1. The removal efficiency of BOD loading in Combined treatment was 31.1% more than that of single treatment. 2. The average concentratron of effluent BOD was 147.5㎎/l~160㎎/l in single treatment but 91㎎/l~100.8㎎/l in combined treatment. 3. Combined treatment contributes to improving the quality of water than direct discharging domestic sewage does. 4. It is desirable that, if possible, we should install a bigger septic tank than the volume which the actual residents need.

On the Relationship between College Students’ Attitude toward the Internet and their Self-directed English Learning Ability

Kab-Yong Park(박갑용),Tae-Soo Sung(성태수),Chi-Woon Joo(주치운) 한국컴퓨터정보학회 2018 韓國컴퓨터情報學會論文誌 Vol.23 No.2

This article is to investigate the possibility that project-based classes introducing mobile phones can replace the monotony of traditional classes led by teachers as well as they can encourage students to take active part in the classes to some extent. The students in groups choose a genre for their own video projects (e.g., movie, drama, news, documentary, and commercial) and produce the video contents using a mobile phone for presentation made at the end of a semester. In the sense that the students are allowed to do video-based mobile phone projects, they can work independently outside of class, where time and space are more flexible and students are free from the anxiety of speaking or acting in front of an audience. A mobile phone project consists of around five stages done both in and outside of the classroom. All of these stages can be graded independently, including genre selection, drafting of scripts, peer review and revision, rehearsals, and presentation of the video. Feedback is given to students. After the presentation, students filled out a survey questionnaire sheet devised to analyze students’ responses toward preferences and level of difficulty of the project activity. Finally, proposals are made for introduction of a better mobile phone-based project classes.

오존에 의한 질산화 연구

박현건,이춘식,전기일,김형갑,서주수 진주산업대학교 1997 산업과학기술연구소보 Vol.- No.4

This study was carried out nitrification prcess according to contact ozone concentration and contact time. The results were summarized as follows: 1. Ammonium is rapidly nitrificated to nitrite by contact ozone concentration and contact time, on the ozone contact concentration of 15mg/ℓ and contact time of 12min. Nitrate is formated by exess ozone and free oxygen. 2. Nitrite is completely oxidated to nitrate on the contact time of 15min and contact ozone concentration of 8mg/ℓ, and in the low contact ozone concentration of 1mg/ℓ and contact time of 30min. 3. Nitrate formation is completely carried out nitriflcation on the ammonium to nitrite ratio(4:1) in the contact ozone concentration of 8mg/ℓ and contact time of 10min.

A nanosystem for water-insoluble drugs prepared by a new technology, nanoparticulation using a solid lipid and supercritical fluid

Joo Won Park,Jeong Min Yun,이은성,윤유석,Kab Sig Kim,오영택,오경택 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.11

While the number and diversity of lead compoundshas increased with the development of sciencetechnologies, ca. 90 % of new chemical entities underdevelopment have shown low aqueous solubility, classifiedas class II or IV of the biopharmaceutics classificationsystem (BCS). The low aqueous solubility hinders theirclinical translations due to low bioavailability and dissolution-limited absorption of orally-administered drugs. Several technologies have been employed to improve thesolubility of poorly water-soluble drugs. In this paper, anew method of nanoparticulation using fat and a supercriticalfluid (NUFS) for the formulation of hydrophobicdrugs was applied to solve the low solubility problem. A typical BCS class II drug, itraconazole, was selected andformulated with hydroxypropyl methylcellulose, emulsification,and anticoagulating agents for NUFS. The nonsphericalitraconazole nanoparticles prepared by NUFSwere *300–500 nm in size with a *15-fold improveddissolution rate compared to non-nanoparticles of itraconazole(i.e., raw itraconazole). In addition, a high drugcontent of *46 % by weight and a drug loading efficiencygreater than 85 % were achieved. Therefore, the newtechnology for nano-platforms could be a promising solutionfor solubilization of poorly water-soluble drugs,resulting in improved bioavailability.

고정 생물막 공법을 이용한 고농도 폐수 처리시 비표면적 영향

안갑환,박태주,송승구,이민규 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.1

비 표면적을 달리하는 media를 이용하여 염료공장의 고농도 유기성 폐수를 호기성 생물막 공법으로 처리할시의 유기물질의 제거효율과 media에 부착되는 미생물의 양태를 조사하였다. 본 실험에 사용된 media는 SARAN 4000D(media S)와 100D(media B)로 비표면적이 각각 153㎡/㎥과 307㎡/㎥이었다. 반응조내 media에 부착되는 평균 미생물농도는 media S의 경우 7316㎎/ℓ, media B의 경우 6683㎎/ℓ로 나타나 media S의 경우가 9.5% 더 높았다. Media 표면적당 평균 미생물 부착량은 media S의 경우 48.2gSS/㎡, media B의 경우 35.45gSS/㎡으로 나타났으나 전체 미생물량으로는 거의 같았다. This study was conducted to investigate the characteristics and treatment efficiency of aerobic fixedfilm process with different specific surface area upon the variation of organic loading rate. The media used for this study was SARAN 4000 D (media S) with specific surface area 153 ㎡/㎥, and 1000 D (media B) with specific surface area 307 ㎡/㎥. The substrate used was a dye plant processing wastewater and the feed solution was diluted two fold or more as the feed solution. The influent COD concentration ranged about 1250 to 4080 ㎎/ℓ. Average biomass concentrations were 7316 ㎎/ℓand 6683 ㎎/ℓon the media B and S, respectively. The value of media B was about 9.5% higher than that of media S. Average amounts of attached biomass were 48.2 gSS/㎡ on the media S and 35.45 gSS/㎡ on the media B, but the total amount of accumulated biomass was nearly the same.

생물막 유동층 반응기에서 고농도 합성 폐수의 처리효율과 미생물 성상

안갑환,박태주,송승구,김동석,서명교 한국화학공학회 1991 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.29 No.4

이 실험의 목적은 생물막 유동층 반응기내에서 미생물 성상의 변화를 관찰하여 유기물 처리효율과 최대 미생물 농도를 안정적으로 유지할 수 있는 조건을 고찰하는데 있다. 모래를 여재로 사용하여 수리학적 체류시간을 5시간, 상향유속을 17m/hr, 운전온도는 22±1℃, pH는 7±0.1로 고정한 상태에서 유기물 부하율을 10㎏ COD/㎥·day에서 80㎏ COD/㎥·day로 증가시키면서 실험을 수행하였다. 또한 실험에 사용한 폐수는 글루코오즈를 기질로 한 합성폐수를 조제하여 사용하였다. 유기물 부하율이 10㎏ COD/㎥·day에서 COD는 96%의 제거율을 나타내었고, 반응기내 미생물 농도는 6,530㎎/ℓ이었다. 또한, 유기물 부하율이 80㎏ COD/㎥·day로 증가되어도 COD는 73%의 높은 제거율과 반응기내 미생물 농도는 37,000㎎/ℓ를 나타내었다. 유기물 제거율의 관점에서 보면 F/M비가 1.7 이하, 미생물막 두께가 420㎛ 이하에서 운전하는 것이 가장 효율적인 것으로 나타났다. The purposes of this experiment were to investigate biomass characteristics and substrate removal efficiency and to find the optimum conditions on holding up higher biomass concentration in Fluidized-Bed Biofilm Reactor(FBBR). A number of experiments were conducted under the following conditions by increasing organic loading rate from 10㎏ COD/㎥·day to 80㎏ COD/㎥·day. Superficial upflow velocity was 17m/hr, operating temperature was 22±1℃, pH and 7±0.1. The synthetic wastewater based on glucose was used as a substrate in this experiment. The removal of chemical oxygen demand(COD) with volumetric loading rates of 10㎏ COD/㎥. day·80㎏ COD/㎥·day was investigated to show the efficiency of aerobic FBBR. The corresponding COD removal efficiencies were 96 and 73% with volumetric loading rate of 10 to 80 ㎏ COD/㎥ day, respectively, and the concentrations of biomass remaining inside the reactor were shown 6,500㎎/ℓand 37,000㎎/ℓ, respectively. These experimental conditions of the F/M ratio of 1.7 and the biofilm thickness of 420㎛ was proved to be a most appropriate condition in operating FBBR in the view of substrate removal.

활성 슬러지 , 고정 생물막 및 생물막 유동층 반응기들의 성능 비교에 관한 연구

안갑환,박태주,송승구 한국물환경학회 1992 한국물환경학회지 Vol.8 No.1

A number of experiments to treat wastewater of a dye-plant were conducted to evaluate the treatment efficiency of an aerobic fixed-film reactor, a fluidized bed reactor, and a completely mixed activated sludge reactor upon the variation of organic loading rates. The media used in this fixed-film reactor were SARAN 4000D(media A) of specific surface area, 153㎡/㎥ and SAEAN 1000D(media B) of specific surface area, 308㎡/㎥ and the supporting material of this fluidized-bed reactor was 0.6 - l.2 ㎜ in diameter granular activated carbon. The influent COD concentration was ranged from 1040 to 5365㎎/ℓ. Maximum COD removel efficiencies with 600% diluted wastewater were marked to 90% with a fluidized bed reactor, 83% with an aerobic fixed-film reactor and 77% with a completely mixed activated sludge reactor. But in case of 200% diluted wastewater, COD removel efficiency was 63-83% with an aerobic fixed-film reactor, 46-67% with a fluidized bed reactor 40-46%, with a completely mixed activated sludge reactor. It was assumed to be the toxcity of high concentrated influent of wastewater. Within the range of organic loading rates, average biomass concentration were shown as 7,000㎎/ℓ in an aerobic fixed-film reactor, 6,300㎎/ℓ in a fluidized-bed reactor and 1,700㎎/ℓ in a completely mixed activated sludge reactor.

염색폐수의 전해처리

서주수,이춘식,박현건,전기일,김형갑 진주산업대학교 산업과학기술연구소 1996 산업과학기술연구소보 Vol.- No.3

This study was carried out to dyeing wastewater treatment of electrolysis reactor. The results were summarized as follows: 1. Colors removal efficiency was 17%, 21%, 27%, 28%, 31% according to current density 0.36A/㎠ -1.82A/㎠ in contact time 15min. and colors changing were violet → soft violet → diazo. 2. Colors changing were soft violet → diazo and optimum treated condition were 50% COD removal effiency in current density 250A(1.82A/㎠) by electrolysis treatment.

물고기 사료로서 동애등에의 영양학적 가치

박관호 ( Kwanho Park ),최영철 ( Young Cheol Choi ),남성현 ( Sung Hee Nam ),김성현 ( Sung Hyun Kim ),김신영 ( Sin Young Kim ),마영주 ( Young Joo Ma ),노시갑 ( Si Kab No ) 한국잠사학회 2013 한국잠사곤충학회지 Vol.51 No.2

The experiment was conducted to determine the value of black soldier fly (Hermetia illucens) larvae and pupae as feed supplements for fresh-water fish (Carassius auratus). Black soldier fly larvae grown on food waste were fed to freshwater fish, live larvae alone, dried larvae, dried pupae and combination with commercial fish diet. A 16-week feed trial was conducted to determine whether black soldier fly larvae could be used as a feed supplement in fresh-water fish. The growth performance indicated that fish fed the live larvae ranked consistently higher, and in combination with commercial fish diet and dried larvae and pupae were next higher. The finding of this study suggest that black soldier fly larvae and pupae may be valuable feedstuff in commercial fish production.