조직기업가정신에 관한 실증연구

윤종록,위홍복,염명곤 동의대학교 경제경영전략연구소 2004 經濟經營硏究 Vol.2 No.1

This research proposed and tested a conceptual model that examined the difference between entrepreneurship and organizational effectiveness. The result are as follows. First, Entrepreneurship has influenced significantly to organizational commitment, job satisfaction and creativity. Second, according to dynamic environment, entrepreneurship has influenced significantly to a organizational commitment and job satisfaction, but has not influenced significantly to a creativity. Lastly, according to risk-taking of CEO, entrepreneurship has influenced significantly to a job satisfaction, but has not influenced significantly to an organizational commitment and creatively. Therefore, a variables of dynamic environment and personality of CEO have showed a role as moderator in the relationship between entrepreneurship and organizational effectiveness.

중공사 모듈에 의한 페놀의 분리

유홍진,한성록 순천향대학교 부설 산업기술연구소 2002 순천향 산업기술연구소논문집 Vol.8 No.1

Phenol was separated from wastewater by membrane solvent extraction, using a microporous bydrophobic hollow fiber module. The system was operated counter-currently and cocurrently with the aqueous phase flowing through the fiber lumens and the solvent flowing through the shell side. MIBK was used as an extracting solvent. Separation efficiency of countercurrent flow method was better than that of cocurrent flow method.

유동상 생물반응기에 의한 난분해성물질이 포함된 염색-제지 혼합폐수처리

김홍록,장일헌,서유덕,박영규 嶺南大學校 環境問題硏究所 1993 環境硏究 Vol.13 No.1

환경관리공단 대구사업소 폐수종말처리장으로 유입되는 염색-제지 혼합폐수를 대상으로 유동상 생물반응기로 담체충진율을 10%와 20%로 변화시키면서 처리한 결과, 담체충진율을 10%로 하여 BOD용적부하 1.52∼6.4㎏ BOD/㎥·day, COD용적부하 1.40∼4.81kg ??/㎥·day로 처리할 때 유출수의 평균 BOD는 216㎎/ℓ, 평균 ?? 농도는 241㎎/ℓ이었으며, BOD 및 ??의 평균제거율은 각각 73%, 65% 이었다. 담체를 20% 충진하여 BOD용적부하 1.8∼5.81㎏ BOD/㎥·day, COD용적부하 1.5∼4.85㎏ ??/㎥·day로 처리할 때 유출수의 평균BOD는 188㎎/ℓ, 평균 ?? 농도는 223㎎/ℓ이었으며, BOD 및 ??의 평균제거율은 각각 79%, 69%로 담체중진율 20%가 다소 높게 나타났다. 담체를 10% 충진한 경우 Y, ??는 각각 0.28(㎏ MLVSS/㎏ BOD)와 0.05(??)이었으며, 담체를 20% 충진한 경우의 Y, ?? 값은 0.30(㎏ MLVSS/㎏ BOD) 와 0.08(??)이었다. This study was performed to investigate the biological treatability and to determine the biokinetic coefficient by Fluidized Bio-reactor using 10% media and 20% media for dyeing and paper manufacture mixing wastewater of Taegu Namchun Sewage Treatment Plants. The dyeing and paper manufacture mixing wastewater contained BOD 601∼1.194mg/l and ??424∼812mg/ℓ was treated by Fluidized Bio-reactor. The conclusions are as follow : The 73% of BOD and 65% ?? were removed by Fluidized Bio-reactor using 10% media with the loading range of 0.5∼1.52kg BOD/kg MLVSS·day and 0.53∼1.24kg ??/kg MLVSS·day. The 79% of BOD and 69% ?? were removed by Fluidized Bio-reactor using 20% media with the loading range of 0.32∼0.8㎏ BOD/㎏MLVSS·day and 0.28∼0.66㎏ ??/㎏ MLVSS·day. The biomass yield coefficient(Y) and microbial decay coefficient(??) were shown as 0.28kg MLVSS/kg BOD and 0.05 ?? in using 10% media, and 0.30kg MLVSS/kg BOD and 0.08 ?? in using 20% media, respectively.

하지의 만성 폐쇄성 혈관질환에서 절단부위 결정을 위한 색조도플러영상의 진단학적 가치

황득수,오홍록,이승진 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.2

There is no definite criteria for the determination of the level of amputation in ischemic limb or diabetic foot. So, We propose our update criterias for this problem as another good method, which are color doppler sonography as a noninvasive method and angiographic imaging as a more accurate but invasive method for the vascularity and its supplimentation in ipsilateral lower extremity as well as Wagner's ischemic index. We are concluded from our experience, as these; 1. Color doppler imaging is a kind of a good method for the determination of the level of amputation in ischemic limb or diabetic foot of lower extermity, even than Wagner's ischemic index. 2. The wound healing of diabetic foot is more difficult than any other foot disease such as Buerger's disease or atherosclerotic vascular disease in our experience.

항파상풍 톡소이드 주사후 항파상풍 항체 역가

이한식,하영록,구홍두,장석준,심호식,김승환,이정운 대한응급의학회 1996 대한응급의학회지 Vol.7 No.2

Objective : Tetanus decreased in prevalence since the systemic vaccination began in 1940s. Despite of the improvement in treatment like critical care with ventilatior or antibiotics, the mortality rate resides around 45%. Currently the tetanus prevention protocol recommends immunization in infancy and boosters every tenth years. Thereafter the immunization with toxoid only or toxoid plus immunoglobulin injections is recommended according to the type of injury. In most of ED in Korea, only tetanus immunoglobulin is given without any basis. Previously we proved the effect that passive immunization with the immunoglubulin 250 IU last long for only a month. At this time we measured the effect of the active immunization with toxoid and its effect was compared to the effect of the tetanus immunoglobulin to find out the logical tetanus prevention after an injury. Method: 20 healthy adult volunteers were injected with tetanus toxoid and their anti-tetanus antibody titers measured before the injection, 1 week and 4 weeks after the inection. No volunteers have taken any medication for chronic illness(e.g. hepatits, tuberculosis) or had an tetanus immunization or booster in the last 6 months. Antibody titers were measured by IMMUNOZYM??-TETANUS and t-test was performed on the results, Results: 1. Total 20 volunteers(12 males and 8 females) were participated. 2. Subjects` ages were 21 to 44 years old and there were no relevance to the antibody titer. 3. The antibody titers of before the anti-tetanus toxoid injection and 1 week, 4 weeks after the injection revealed significant difference and the antibody titers of the first and the forth week after the injection also showed a significant difference. Conclusion: Currently in Korea, the tetenus immunoglobulin 250 IU given alone as tetanus prevention was injected, but it did not elevate the anti-tetanus antibody titer for 4 weeks where as tetanus toxoid injected intramuscularly did significantly. Therefore, tetanus toxoid should be given on the dirty injuries with additional tetanus immunoglobulin injection to accomplish the correct method of tetanus, tetanus toxoid prevention.

내반주 변형에 대한 과상부 장방형 전위 절골술

안상로,오홍록 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

Cubitus varus deformity is the late complication of the supracondylar fracture of humerus which is common in growing children. If the deformity is severe it cause functional problems as well as cosmetic ones necessitating corrective osteotomy. Though many authors devised different method of corrective osteotomy, the cosmetic results are not always satisfactory because of the development of "the lasy S" deformity by the lateral prominence. Technically, the initial stability of the osteotomy is also poor due to the poor contact of the osteotomy site. So we have devised a new quadrilateral displacement osteotomy to increase the initial stability of the osteotomy by creating a wedge on the osteotomy site and also to prevent the development of "the lasy S deformity" by elimination of the lateral prominence. We treated 3 cases of cubitus varus defomity with the new quadrilateral displacement osteotomy. The correction was not difficult and the initial stability of the osteotomy is rather good and the osteotomy is fixed by the convential methods, and the osteotomy were healed uneventfully. There developed no "the lasy S deformity" after osteotomy. We would like to report the details of the supracondylar quadrilateral displacement osteotomy.

대전광역시 양축농가의 축분뇨 관리 실태 및 VOCs 농도 조사

이봉덕,이수기,오홍록,허정민,정기철,김성복 충남대학교 농업과학연구소 2005 농업과학연구 Vol.32 No.1

This study was carried out to investigate the style of livestock house, concentration of malodorous substances of livestock feces and livestock houses in Daejeon area. Among the livestock houses investigated, as most of cow pens(94.5%) have sawdust or chaff on the bottom, there was no leakage of feces out of pen. Most pig pens adopted slury style, but some of them currently use buffering material on the bottom. It is thought that there will be no possible contamination leakage. When it comes to hen house, all the broiler house use litters on the bottom and all the layer house use scrapper. It is also thought that there will be no possible contamination leakage. 3 out of 12 deer pens used buffering material on the bottom, 10 places were maintained in a traditional method, and 7 places left possibility of contamination leakage considering whether the roof was installed or not. The contents of ammonia, amine and volatile fatty acid in fresh feces were lower compared to rotten feces, but the concentration of sulfur-containing matter - hydrogen sulfide, methylmercapthan and ethylmercapthan were higher compared to rotten feces. In the case of malodorous ingredient in livestock houses, only small amount of ammonia and hydrogen sulfide were detected in pig pen and hen house, and other ingredients were not detectable. And those who are engaged in animal husbandry reacted negatively to the use of feed additives for decreasing malodor. In conclusion, it is not worrisome that contamination can be leaked out of animal raising facilities. But if we take into consideration that the point of investigation time is wintry season, there should be more considerate attitude. And feed additives for decreasing malodor need establishing criteria in the manufacturing process.

Measures of Chord P2P Network search Algorithm in the Mobile Environment

Rok-ji Hong,Il-Young Moon 한국정보통신학회 2010 2016 INTERNATIONAL CONFERENCE Vol.3 No.1

A scenario-based robust framework for short-term and long-term operation planning problems

Hong-Rok Son,Soon-Ki Heo,이인범,류준형 한국화학공학회 2009 Korean Journal of Chemical Engineering Vol.26 No.3

This paper discusses a scenario-based scheme to address process operation problems under variations. As an illustration, two typically encountered problems, a short-term operation planning problem and a long term supply chain planning problem, are investigated considering the effect of variations. Their mathematical programming models explicitly reflecting the variations in the form of multiple scenarios with their probabilities are presented to provide robust decisions in the face of variations. It is hoped that the proposed framework can be a reminder of the importance of the scenario-based approach in the current uncertain business circumstances.

Piezoelectric immunosensor for the detection of Edwardsiellosis

Hong, Sung-Rok,Choi, Suk-Jung,Jeong, Hyun-Do,Hong, Su-Hee The Korean Society of Fish Pathology 2007 한국어병학회지 Vol.20 No.3

In this study, a QCM biosensor was made to detect Edwardsiella tarda (E. tarda) using a specific antibody. A 9 MHz AT-cut piezoelectric wafer layered with two gold electrodes of 5mm diameter had a reproducibility of 0.1 Hz in frequency response and was used as the transducer of the QCM biosensor. Self assembled layer (SAM) was conformed on a quartz crystal by treating with 3-mer-captopropionic acid (MPA) and activated with N-ethyl-N'-(3-dimethyl-aminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The resulting NHS group was further converted to hydrazide by the reaction with hydrazine. Aldehyde group was introduced into the carbohydrate moiety of anti-E. tarda antibody by the reaction with periodic acid and was used to immobilise the antibody through the reaction with hydrazide group on the electrode surface. A baseline was established in the presence of phosphate-buffered saline (PBS) and a resonant frequency (F1) was measured. Sample was added to the sensor surface and second resonant frequency (F2) was measured after unbound substances were washed out with PBS several times. Finally, the frequency shift (ΔF) representing the mass change was calculated by subtracting F2 from F1. After adding the oxidized anti-E. tarda antibody to the electrode surface containing hydrazide group, frequency shift of 288.811.4 Hz (mean S.E) was observed, thus proving that considerable amount of antibody was immobilized. In the immunoassay test, the frequency shift of 1877.75 Hz, 580.67 Hz, 221.39 Hz, 7.671.83 Hz (mean S.E) were observed at doses of 1000, 500, 100, 50 g of bacterial cells, respectively. It was also demonstrated that the prepared sensor chip was stable enough to withstand repeated surface regeneration with 0.2 M Tris-glycine and 1 % DMSO, pH 2.3 more than ten times.