중소기업의 기술혁신성과에 대한 매출증대와 고용증대 효과: 흡수역량의 매개역할

김연일(Youn-Il Kim),김학수(Hack-Soo Kim) 한국인적자원개발학회 2022 인적자원개발연구 Vol.25 No.1

Base Catalyzed Depolymerization of Organsolv Lignin Derived in Miscanthus

Youn Il Kim(김연일),Ga Hee Kim(김가희),Seong Ju Kim(김성주),Byoung Hwan Um(엄병환) 한국신재생에너지학회 2020 한국신재생에너지학회 학술대회논문집 Vol.2020 No.8

번영감과 혁신행동 간의 관계 및 연구개발 인력 집약도의 교차수준 조절역할: 중소기업 연구개발 인력을 중심으로

김학수 ( Hack-soo Kim ),김연일 ( Youn-il Kim ),박상언 ( Sang-eon Park ) 한국중소기업학회 2022 中小企業硏究 Vol.44 No.1

번영감 개념이 제시된 이래, 번영감의 순기능적 효과에 대한 연구가 지속적으로 축적되어 오고 있다. 이러한 선행연구들을 통해, 정서적 차원인 활력감과 인지적 차원인 학습감을 포함하는 긍정적인 심리 상태인 번영감이 조직의 혁신을 창출하기 위한 중요한 심리적 기반 요인이 될 수 있음이 시사되고 있다. 하지만 혁신이 상대적으로 중요한 중소기업에서 연구개발 인력의 번영감이 혁신행동에 미치는 효과를 규명한 연구는 찾아보기 어려운 실정이다. 또한 중소기업 우위론의 핵심적 요인일 수 있는 혁신적 기술을 위해서는 연구개발 인력이 많아야 함에도 불구하고, 이를 중소기업 조직 특성으로 간주하여 고찰한 연구는 상대적으로 미흡하다고 볼 수 있다. 전체 조직구성원수 대비 연구개발 인력 수를 연구개발 인력 집약도로 볼 수 있는데, 연구개발 인력 집약도가 높을수록 연구개발 인력은 새로운 지식, 정보의 획득 및 소화와 더불어 연구개발 인력 간의 지식, 정보 교환으로 변환 및 활용이 보다 용이해지면서 활력감과 학습감을 포함한 심리적 경험인 번영감이 혁신행동에 미치는 효과를 강화시킬 수 있을 것이다. 60개 중소기업의 213명 연구개발 인력으로부터 수집한 자료를 분석한 결과, 첫째, 중소기업 연구개발 인력의 번영감은 혁신행동에 유의하지 않은 것으로 나타났다. 둘째, 번영감과 혁신행동 간의 관계에서 연구개발 인력 집약도의 교차수준 조절역할은 유의한 것으로 나타났으며, 연구개발 인력 집약도가 높은 중소기업에서는 연구개발 인력의 번영감은 혁신행동에 정적인 영향을 주는 반면, 연구개발 인력 집약도가 낮은 중소기업에서 연구개발 인력의 번영감은 혁신행동에 유의하지 않은 것으로 나타났다. 이러한 연구결과를 토대로 중소기업 연구개발 인력에 함의하는 경영학적 시사점 등을 논의하였다. Since thriving at work was presented as a positive emotional, cognitive psychological state, the positive effects of thriving at work have continued to accumulate. And it can be confirmed that thriving at work as a psychological experience which includes emotional vitality and cognitive learning, is an important independence variable to lead innovation. Up until now, a lot of research has dealt with general study settings such as large sized firm and so on. Yet, a lack of empirical researches on this issue coupled with limited study regarding small- and medium-sized enterprises and their R&D professionals with notable thriving at work act as a stumbling block to advancing the study. Despite the factor that R&D personnel must be large for innovative technology, which will be a key factor in small- and medium-sized enterprises sustainable competitive advantage, previous research examining the intensity of R&D personnel as a characteristic of small- and medium-sized enterprises can be considered relatively insufficient. The higher the intensity of R&D personnel, the easier it will be for R&D personnel to acquire and assimilate new knowledge and information, as well as transform and utilize knowledge and information among R&D personnel, and the effect of thriving at work on innovative behavior can be strengthened. To this end, we conducted a survey of 60 small- and medium-sized enterprises and 213 R&D professionals working in R&D teams. The results illustrated that thriving at work had no significant effects on innovative behavior. In addition, intensity of R&D personnel illustrated the positive cross level moderating effect on the relationship between thriving at work and innovative behavior. Specially, in case of highly intensity of R&D personnel, thriving at work had positive effects on innovative behavior. But, in case of lowly intensity of R&D personnel, thriving at work had no significant effects on innovative behavior. Based on these findings, management implications for R&D professional of small- and medium-sized enterprises were discussed.

요추 후관절 돌기의 선천성 결손

최창욱(Chang Uk Choi),김연일(Youn Il Kim),이병일(Byoung Il Lee),신병준(Byoung Jun Shin),김홍섭(Hong Seop Kim) 대한정형외과학회 1990 대한정형외과학회지 Vol.25 No.4

일본잎갈나무와 현사시나무를 이용한 브리켓의 제조

한규성 ( Gyu Seong Han ),김연일 ( Youn Il Kim ),문경태 ( Kyoung Tae Mun ) 한국목재공학회 2012 목재공학 Vol.40 No.1

바이오매스로부터의 고밀화연료는 북미와 유럽에서 신재생에너지로서 널리 이용되고 있다. 본 연구에서는 일본잎갈나무와 현사사나무를 피스톤 프레스를 이용하여 브리켓을 제조하였으며. 연료적 특성 및 고밀화 특성을 밝히고자 압력. 가압사간. 수종 및 목분 크기가 브리켓의 특성에 미치는 영향을 조사하였다. 상온에서 110, 170 MPa의 압력을 가해 제조된 일본잎갈나무와 현사시나무 브리켓의 4주간 경과 후의 밀도는 0.66~0.94g/cm3이고, 적정 가압시간은 12초이며, 제조 압력이 증가하면 브리켓의 밀도는 직선적으로 증가하였다. 일본잎갈나무 브리켓야 현사시나무 브랴켓보다 밀도가 컸으며, 목분의 크기가 클수록 브리켓의 밀도가 컸다. Densified fuels from biomass are widely used in North America and Europe as a regenerable and clean bioenergy. In this study, the fuel characteristics and densification characteristics of Japanese larch and Hyunsasi poplar were studied using a piston-type briquetting machine. The effects of pressure, pressure holding time, species, and particle size on briquette characteristics were studied. At room temperature, the highly densified briquettes of Japanese larch and Hyunsasi poplar can be produced at a compression pressure of 110~470 MPa. The produced briquettes have densities between 0.66 and 0.94 g/cm3 after 28 days of storage at room temperature, The optimum pressure holding time was found to be 12 seconds There is a linear increase in pressure with increase in density. The densities of briquettes from Japanese larch were higher than those of briquettes from Hyunsasi poplar. Also, the coarser particle size resulted in higher densities in briquettes than the finer particle size.

Optimization of Content Sugar from Food Waste through Pretreatment

Jin Seong Cha(차진성),Ga Hee Kim(김가희),Ji Yun Kim(김지윤),Ji Na Yoo(유지나),Youn Il Kim(김연일),Min Hyeok Na(나민혁),Byung Hwan Um(엄병환) 한국신재생에너지학회 2017 한국신재생에너지학회 학술대회논문집 Vol.2017 No.5

이하선 절제술 후 요오드-녹말 검사를 이용한 Frey 증후군의 발생 빈도 및 임상 양상

강태욱(Tae Wook Kang),송창면(Chang Myeon Song),김홍대(Hong Dae Kim),고석화(Seok Hwa Ko),장연일(Youn Il Jang),지용배(Yong Bae Ji),태경(Kyung Tae) 대한두경부종양학회 2016 대한두경부 종양학회지 Vol.32 No.1

Objectives: Frey's syndrome is an infrequent complication after parotidectomy and its incidence varies from 23.5% to 50.8% in the literature. The objective of this study was to evaluate the actual incidence and clinical characteristics of Frey's syndrome. Methods: We analyzed 31 patients who underwent parotidectomy and serial Minor's starch-iodine test. The mean follow-up period was 66 ± 26.1 months (range, 24-118 months). The Frey's syndrome was analyzed using a questionnaire for the assessment of the subjective symptom and Minor's starch-iodine test for the objective meas-urement at 1, 3, 6, and 12 months after the surgery and then every 6 or 12 months. Minor's starch-iodine test was graded from 0 to 3 according to the area of discolorization. Results: Frey's syndrome occurred in 11 patients (35.5%) on the Minor's starch-iodine test. The mean onset of Frey's syndrome on the starch-iodine test was 13.6 ± 10.4 months after parotidectomy. Sixteen patients (51.6%) complained about gustatory sweating and flushing. The onset of the subjective symptom was 11.27 ± 6.96 months after the surgery. There was a significant correlation between the grade of the starch-iodine test and the severity of subjective symptoms (P <0.001). Various factors including size and location of tumor, incision method, and extent of parotidectomy did not correlate with the Frey's syndrome. Conclusion: The incidence of Frey's syndrome was 35.5% on the Starch-Iodine test, and the onset was about postoperative 13.6 months.

UVB조사에 의한 Phenothiazine의 광독성에 미치는 Ascorbic Acid의 영향

임연일,김종예,김봉희 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-

광독성 및 광알러지를 일으키는 물질인 phenothiazine계 약물중 chlorpromazine(CPZ), perphenazine(PPZ), trifluoperazine(TFZ), promethazine(PMZ)을 택하여 적혈구에서의 광용혈현상을 Kahn 등의 방법에 의해 UVB(UV irradiation RMX-3W, 1.5 J/㎠)을 조사하여 약물 농도별로 측정한 결과 CPZ, PPZ은 UVB 조사에 의해 약물농도에 따라 현저히 적혈구 용혈현상이 증가 되었으며 이는 ascorbic acid에 의해 유의성있게 감소되었고, 각 약물의 광독성 물질 생성 여부와 이에 의한 용혈독성을 조사해보니 CPZ, PMZ에서 관찰되었고 ascorbic acid에 의해 그 현상이 감소되었다. The purpose of this study is to examine the phototoxicity of four phenothiazine derivatives such as chlorpromazine, perphenazine, trifluorperazine and promethazine, and to investigate the effects of ascorbic acid on their phototoxicity by UVB irradiation. Effects of the test compounds on RBCs were monitored with a spectrophotometer by the method of Kahn et al. The extent of photohemolysis by tested phenothiazine derivatives were increased with their concentration and toxic photoproducts were formed by chlorpromazine and promethazine with preirradiated UVB. Photohemolysis postirradiated chlorpromazine and perphenazine and preirradiated promethazine were decreased with the use of ascorbic acid significantly.

다소성 골괴사

서유성,박형근,최형석,김연일,이병일 순천향의학연구소 2002 Journal of Soonchunhyang Medical Science Vol.8 No.2

In case of the occurrence of osteonecrosis at three or more anatomical location, it is defined as multifocal osteonecrosis, but still any king of study with references hasn't been reported in Korea. The patient who had admitted due to the pain in both knee joints, both hip joints and left ankle joint and we diagnosed as multifocal osteonecrosis by using bone scan and magnetic resonance imaging. To relieve right knee joint and left hip joint pain, we perfomed arthroplasty. Here we present one case report of multifocal osteonecrosis through analysis by patient's history and hematologic examination and provide a review of the literature.