• The Optical Journal
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• s.105
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• pp.17-20
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• 2006

국내 산업용 레이저 시스템시장 규모는 1천억에서 2천억 내외로 매년 2자릿수 이상의 꾸준한 성장률을 보이고 있다. 아직은 국내 산업에서 차지하는 비율은 그리 크지 않지만 레이저 관련 응용분야는 정보화 산업사회를 열어갈 수 있는 원천기술로서 우리나라가 대외적으로 기술경쟁력을 갖추기 위해서는 반드시 적극 육성해야하는 국가기간산업이란데에 큰 의미를 가진다.

• Defense and Technology
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• no.10 s.260
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• pp.22-27
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• 2000

군에서 "국산무기를 쓰겠다"는 의지가 있어야만 방산업체에서 기술개발과 품질향상 노력을 기울여 높은 국산화율의 한국적 무기체계 생산에 총력을 경주할 수 있을 것이다. 우수한 중소방산업체를 육성하고 높은 공장 가동률 유지 및 국내외 시장 개척에도 민.관.군이 공동관심사로 노력한다면 한국의 방위산업 미래가 결코 어둡지만은 않을 것이다.

• Korean Journal of Poultry Science
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• v.39 no.4
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• pp.283-290
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• 2012

The objective of this study was to compare the growth performance between Korean native layer chickens and imported layer chickens at early rearing stage. Total number of chicks analyzed in this study was 276 and feeding period was conducted from July 24, 2012 for 10 weeks. Five strains including 2 Korean native strains: A=Korean Native Black (Chungcheongbuk-do) and B=Korean Native Yellowish Brown (Gyeongsangbuk-do) and 3 imported layer strains: C=White Leghorn (Gyeongsangnam-do), D=White Leghorn (Seoul), and E=Ameraucanas (Gyeongsangbuk-do) were used to analyze the following traits such as fertility, hatchability, body weight at a different growing stage, average body weight gain, and feed conversion ratio. The fertilities and hatchabilities of strains were 93.88% and 95.65% in strain A, 81.75% and 86.24% in strain B, 82.25% and 88.15% in strain C, 79.25% and 90.85% in strain D, and 71.50% and 88.11% in strain E, respectively. A viability was excellent in strains A and E to be more than 98% and was low in strain D to be 86.67% at a whole week. The strain A had greater body weight during growing stages (p<0.05) than the other strains. The shank length of strain D of $56.69{\pm}3.27mm$ was the highest value at 10 weeks of age among strains (p<0.05). The phenotypic correlation coefficients of strains A and D between an average body weight gain and a shank length were 0.63 and 0.73 during 0~2 wk, 0.70 and 0.55 during 2~4 wk, 0.55 and 0.54 during 4~6 wk, 0.50 and 0.24 during 6~8 wk, and 0.46 and 0.29 during 8~10 wk, respectively. The Korean native hens may have potential abilities to be used as an excellent seed stock for poultry industry.

• 한국벤처창업학회:학술대회논문집
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• 2021.11a
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• pp.27-32
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• 2021

정부는 더불어 잘사는 경제, 성장의 과실이 국민 모두에게 골고루 돌아가는 경제를 국정과제로 제시하면서 역동적인 벤처창업 생태계를 만들기 위해 창의적인 벤처기업과 혁신적 창업자 육성을 중점 추진하고 있다. 정부의 다양한 노력에 힘입어 벤처투자금액 및 기술창업기업이 지속적으로 증가하는 등 벤처창업 생태계가 지속적으로 개선되고 있으나 COVID-19 이후 성장률이 급격히 낮아지고 청년층의 실업률이 급등하는 등 우리 경제는 저성장 국면이 장기화되고 있는 상황이다. 경제의 성장 활력을 증진시켜 부가 가치를 높이기 위해서 벤처창업기업의 혁신과 성장을 통한 일자리 창출이 당면과제로 부각되고 있고 특히 4차 산업혁명 환경에서 글로벌 경쟁력을 갖춘 혁신형기업의 중요성이 더욱 높아지고 있는 상황에서 우리 경제의 당면 과제인 성장잠재력 회복과 일자리 창출을 위해서는 기술 기반 중심의 벤처창업의 활성화가 가장 효과적인 방안으로 제시되고 있다. 본 연구에서는 벤처창업기업의 혁신과 성장을 위한 정부의 다양한 육성시책을 고찰하고 기술 기반 벤처창업기업의 생존과 성장, 및 일자리에 미치는 특성을 분석하였다. 또한 본 연구 결과를 바탕으로 벤처투자금액이 지속적으로 증가하고 있는 상황에서도 민간 금융기관 입장에서 벤처창업기업이 여전히 고(高)위험-저(低)수익 대상으로 여기고 있는 벤처투자시장의 구조적 문제점을 해결하기 위한 정책 대안을 제시하였다.

• Journal of Aquaculture
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• v.21 no.2
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• pp.107-110
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• 2008

This study was conducted to evaluate extruded pellet for the growth of grower Korean rockfish Sebastes schlegeli. Two replicate groups of 150 fish per each tank(initial mean weight 112 g) were fed one of four experimental extruded pellets for 8 months. Survival was 100% in all groups. Final mean weight, feed efficiency and protein efficiency ratio, feed intake and hepatosomatic index were not significantly different among all groups. Proximate compositions of the whole body and liver were not significantly different among all groups. It can be concluded that the dietary formulation used in four extruded pellets could be applied in the practical extruded pellet for grower Korean rockfish.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.31 no.2
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• pp.156-161
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• 1986

Silage productivity and resistance to rice black streaked dwarf virus (RSDV) of six Korean-improved and six US introduced corn genotypes were tested in the southern part of Korea. There was a negative correlation between culm length retarded by RBSDV and coefficients of variance of culm length. Frequency distribution of culm length could be classified as three genotypic groups according to the type of distribution and percentage of RBSDV diseased plants. There were negative correlations between percent RBSDV diseased plants at harvest and culm length, percent ear bearing plants, silage yield, or ear yield, but percent RBSDV diseased plants did not related to the ear/silage ratio and stover yield. Silage yield of Pioneer XCF38 was highest, but that of Suweon 89 and NC 6131 was lowest. However, there was not signi-ficant difference in silage yield among the remaining genotypes. Pioneer XCF38, Suweon 89, and Jinjuok were quite resistant to RBSDV, but Suweon 19, Kwangok, Hoengseongok, Jecheonok, and Pioneer 3424 were susceptible and NC 6131 was most susceptible to RBSDV. Although Jinjuok and Suweon 89 were resistant to RBSDV, silage yield was not high because of early senescence of leaves after silkillg.

• Korean Journal of Environment and Ecology
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• v.33 no.4
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• pp.453-461
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• 2019

This study was conducted to monitor the soil characteristics and growth of Pinus densiflora and to determine the effect of soil characteristics on growth rate five years after an ecological restoration project in Baekdudaegan ridge including Ihwaryeong, Yuksimnyeong, and Beoljae sites. The ecological restoration project was executed with the forest of P. densiflora in 2012-2013. In April 2018, we collected soil samples from each site and measured the height and the diameter at breach height (DBH) of P. densiflora. Although there was no significant change of soil pH compared to the early stage of restoration (one year after the project), it was high in Ihwaryeong, and Beoljae with values of 7.7 and 6.4, respectively. Also, the organic matter decreased by 70-80%, and the available phosphorus (P) was unchanged in three restoration sites. The decreased organic matter can be attributed to restriction of inflow and thus decomposition of litter in the early stage after the restoration. The tree height growth rate ($m\;yr^{-1}$) of P. densiflora in Yuksimnyeong was the highest at 1.02, followed by Beolja at 0.75 and Ihwaryeong at 0.17. The height growth rate showed negative relationships with soil pH and cations, including Na and Ca concentrations and a positive relationship with available phosphate. The low growth rate in the Ihwaryeong site, in particular, might result from the poor nutrient availability due to high soil pH and the decrease in water absorption into the root due to high Na and Ca concentrations. The substantial reduction of organic matter after five years indicates that the need for soil improvement using chemical fertilizer and biochar.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.97-98
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• 2003

This experiment was conducted to investigate the effect of restricted feeding to pullet on growth and laying Performance, egg qualify and endocrine Profile in brown layers. 1,080 brown-layer chicks divided to three diet treatments, conventional diet and two restricted diets, for 70 weeks. Conventional diets(C) was formulated by NRC recommendation, and one of restricted diet started from seven to seventeen week of age(T1), and another started from twelve to seventeen(T2) with adjusted eighty percentage amount of conventional diet. Body weight decreased with starting restriction of feeding comparing to the C(P＜0.05), but reached to similar weight in all treatments at twenty week regardless restriction. All of birds started to lay egg around 1,400 to 1,450gram of body weight though the age was in order of C, T2 and T1. Overall e99 Production was the highest in T1 (P＜0.05) and there were not difference in C and T2. Average egg weight also showed similar to the tendency of egg production. Feed intake was higher in T1 during maximum production(P＜0.05), but there were not difference in all treatments after the peak. Overall feed conversion ratio improved in T1 compared to C and T1(p＜0.05). Restriction feeding in rearing period could be beneficial to improve egg productivity and to decrease feed cost.

• Korean Journal of Poultry Science
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• v.25 no.4
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• pp.177-183
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• 1998

A feeding trial was conducted to investigate the performance of various Korean Native Chickens (KNC) for 64 weeks. Eight hundreds and ten KNC one-day birds were arranged to three strains, Dark Brown(D), Light Brown(L) and Black(B). Each strain had three replicates of 90 birds a replicate. Birds fed same diet with Korean standard feeding. Data were obtained growing performance to 20 week of age and laying performance from twenty one to sixty four week. During the growing stage from hatch to 20 week of age, there were not significant difference to three strains on viability, body weight and feed intake. L strain tended to be earlier 50％ egg production day than that of other strains, but was not significantly different. Egg production of L strain was the highest of strains. It showed significantly higher egg production compared to that of D strain(P<0.05), but was not statistically different from that of B strain. Laying peak period was between 28 to 32 week of age in all strains, Egg weight was heavier in D strain(P<0.05). Feed intake was the same as 105g, and feed conversion improved in L strain(P<0.05). There were not difference on interior egg and eggshell quality by strains although eggshell thickness improved slightly in D strain. Fertility of D strain was the highest compared to others(P<0.05) regardless laying stages. Hatchability was not influenced by strains at 39 weeks old, but was significantly higher in B strain at 62 week of age(P< 0.05). The results of this experiment indicated that KNC 3 strains were not effect on egg production, feed intake and feed conversion ratio.

• Journal of the Korean association of regional geographers
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• v.11 no.4
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• pp.463-475
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• 2005

This paper aims at examining the current states of regional industrial structures, and secondly, analyzing the specialized industries in Youngnam Area, and finally, elucidating its policy implications. The main results of this paper are as follows. The characteristics of specialized industries are different between regions, in terms of static-dynamic dimension, static dimension and dynamic dimension. As a results, the effects of the activating strategies of regional specialized industries are quite different by regions. Therefore, some policy implications are elucidated, as follows. Firstly, different strategy may be committed according to the characteristics of specialized industries. Secondly, the activating strategies of regional specialized industries and regional innovation strategies may be confused considering the changing trends into knowledge based economies.