• 제목/요약/키워드: Growth increasing

검색결과 5,663건 처리시간 0.035초

함침법에 의한 지르코니아 나노 분말의 합성 (Preparation of Nano-sized Zirconia Powders by the Impregnation Method)

  • 한정화;김수종
    • 한국세라믹학회지
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    • 제49권5호
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    • pp.454-460
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    • 2012
  • The nano-sized zirconia powders were synthesized in an impregnation method using pulp and $ZrOCl_2{\cdot}8H_2O$ as an initial material. The synthesized powders were characterized by XRD and FE-SEM. The particle size of the powder was controlled by preparation conditions, such as drying temperature and time. As a result of the various drying and calcination conditions, 30~50 nm sized homogeneous zirconia particles were obtained at $800^{\circ}C$ for 1 h. Crystallization and the rapid growth of particles were accelerated with increasing calcination temperature and time. Tetragonal phase generated below $800^{\circ}C$ were transferred to monoclinic phase with increasing calcination temperature and time. Moreover, above $800^{\circ}C$, heat treatment time had very large influence on the particle growth, and the change of drying condition also had large influence on the growth of a crystal.

ECAR 가공한 AA3103 판재의 미세조직 변화 (Changes in Microstructures of AA3103 sheets deformed by ECAR)

  • 이재필;허무영;정영훈;박종우
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2004년도 춘계학술대회 논문집
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    • pp.228-230
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    • 2004
  • Samples of the aluminum alloy 3103 sheets were repeatedly deformed by ECAR up to twelve passes. Shear textures developed after the first passage of ECAR. However, the intensity of shear texture components decreased with increasing number of ECAR passages. Observations by TEM and EBSD revealed that the degree of misorientations within the deformed grains increased with increasing number of ECAR passes. Changes in textures and microstructures were hardly observed during recrystallization anneal. Upon subsequent annealing, the samples deformed by a large number of ECAR passes displayed a continuous grain growth. A higher deformation by ECAR resulted in a slower softening, which reflects the stability of ultra-fine grains against the grain growth.

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모밀(Fagopyrum esculentum Moench)생장과정중의 유리 Amino 산과 당질의 성장에 관하여 (The Variation of the Contents of Free Amino Acids and the Carbohydrates in the Whole Plant of Fagopyrum escullentum Moench during the Stages of Growing)

  • 황희자
    • 약학회지
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    • 제8권2호
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    • pp.48-53
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    • 1964
  • At the different growing stages of Fagopyrum esculentum Moench planted at the green house and out doors, the contents of free amino acids in the whole plants,were determined quantitatively by spot-extract colorimetric method (J. Awapara method) using the chromatograms obtained by the ion-exchange resin and paper chromatographic method. And the contents of carbohydrate in the whole plant were determined by Bertrand method. The results were summarized as follows. 1. Almost same kinds of free amino acids were detected in the both plants. 2. Concentrations of most amino acids was increased progressively during growth; further growth was accompanied by decreased concentrations. 3. Rate of growth and increasing of total amino acid content of green house plant is greater than that of out dorrs plant. 4. At the same stages of gwoth, total free amino acid content of green house plant is higher than that of out doors plant but sugar content is lower. 5. There was rapidly increasing of sugar content and decreasing of total free amino acid content except asparagine during mature of seeds.

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Progress of renewable energy in India

  • Kar, Sanjay Kumar;Gopakumar, K.
    • Advances in Energy Research
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    • 제3권2호
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    • pp.97-115
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    • 2015
  • Energy holds key to economic growth and prosperity of India. Currently, India has very high-energy import dependence, especially in the case of crude oil (80%) and natural gas (40%). Even coal import has been increasing over the years. Considering India's population growth, emphasis on manufacturing, production, and service industry, energy consumption is bound to increase. More fossil energy consumption means greater dependence on energy import leading to widening trade deficit and current account deficit. Therefore, exploitation of indigenous renewable energy production is necessary. The paper reviews the progress and growth of renewable energy production, distribution, and consumption in India. The paper highlights some of the enablers of renewable energy in India. The authors discuss the opportunities and challenges of increasing share of renewable energy to reduce energy import and address issues of energy security in India. The findings suggest that India is ready for a quantum leap in renewable production by 2022.

In vitro Conidial Germination and Mycelial Growth of Fusarium oxysporum f. sp. fragariae Coordinated by Hydrogen Peroxideand Nitric Oxide-signalling

  • Do, Yu Jin;Kim, Do Hyeon;Jo, Myung Sung;Kang, Dong Gi;Lee, Sang Woo;Kim, Jin-Won;Hong, Jeum Kyu
    • 한국균학회지
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    • 제47권3호
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    • pp.219-232
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    • 2019
  • Chemicals related to hydrogen peroxide ($H_2O_2$) and nitric oxide (NO) generations were exogenously applied to Fusarium oxysporum f. sp. fragariae (Fof) causing Fusarium wilt disease in strawberry plants, and regulations of in vitro conidial germination and mycelial growth of the fungus by the chemical treatments were evaluated. $H_2O_2$ drastically reduced the conidial germination of Fof in a dose-dependent manner, and treatment with 3-amino-1,2,4-triazole (3-AT) catalase inhibitor also led to dose-dependent inhibition of conidial germination but relatively moderately. Gradual decreases in mycelial growth of Fof were found by high concentrations of $H_2O_2$, whilst exogenous 3-AT slightly increased the mycelial growth. Increasing sodium nitroprusside (SNP) NO donor, $N^G$-nitro-l-arginine methyl ester (L-NAME) NO synthase (NOS)-inhibitor and tungstate nitrate reductase (NR) inhibitor led to dose-dependent reductions in conidial germination of Fof in quite different levels. SNP conversely increased the mycelial growth but increasing L-NAME moderately decreased the mycelial growth. Tungstate strongly enhanced mycelial growth. Differentially regulated in vitro mycelial growths of Fof were demonstrated by SNP, L-NAME and tungstate with or without $H_2O_2$ supplement. Superoxide anion production was also regulated during the mycelial growth of Fof by nitric oxide. These results show that $H_2O_2$ and NO-associated enzymes can be suggested as fungal growth regulators of Fof as well as eco-friendly disease-managing agents in strawberry production fields.

가재(Cumbaroides similis Koelbel)의 상대성장 분석 (The Growth Analysis of the Crawfish (Cambaroides similis Koelbel) (Crustacea) 2. Relative Growth)

  • 연근성;노용태정병균
    • 한국동물학회지
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    • 제35권2호
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    • pp.231-239
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    • 1992
  • For the analysis of the relative grouch of six body pans, such as carapace width. abdominal length, abdominal width, cheliped length, second pereiopod length and third pereiopod length, to the carapace length of crayfish (Comboroides similis Koelbel), the equation Y = bXa were applied. The results were as follows: 1. In the relative srourth of each body part to the carapace length, abdominal width and abdomial length in both sexes showed as positive allometrv, the third pereiopod length in both sexes as isometry and the rest shouted as negative. The least coefficient of the relative growth was found in cheliped length in female (0.9300).2. The grolwth gradient of each body part to the carapace length in each sex revealed decreasing pattern in abdominal length and third pereiopod length in both sexes and the abdominal width in male with the growth centers on the initial growth period. and the rest showed increasing pattern with the growth centers on the 6th growvth period except the abdomini,d uridth in female on the 3rd growth period.

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유전자 재조합 Human Growth Hormone의 성장촉진 효과에 관한 연구 (Growth Effects of Recombinant Human Growth Hormone)

  • 정요찬;송동호;조명행;구본흔;정광회;김경연;정경환;이은경;박두홍
    • Biomolecules & Therapeutics
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    • 제3권3호
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    • pp.233-237
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    • 1995
  • The growth effects of newly developed recombinant human growth hormone (rHGH), were compared with those of Biotropine. For the effective evaluation, we examined the increasing rate of body weight and the thickness of tibial epiphysis as criteria of growth effects on hypophysectomised female rats treated with varing concentration of rHGH for 4 days. rHGH treated groups showed significant body weight gain which was less evident in Biotropine and vehicle treatment group. In tibial epiphyseal test, rHGH also showed clear effects compared to Biotropine and vehicle treatment group. Above findings indicate that newly developed rHGH has better effects of growth stimulation on female rats than Biotropine does.

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Inclusive Growth Analysis in Central Sulawesi, The Eastern Province of Indonesia 2015-2019

  • PRAKOSO, Andhika Dimas;AGUSTINA, Neli
    • Asian Journal of Business Environment
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    • 제12권2호
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    • pp.1-12
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    • 2022
  • Purpose: This study aims to analyze the inclusive growth in Central Sulawesi Province, an eastern province of Indonesia, up to the districts/cities level. The inclusive growth is analyzed by using Ramos, Ranieri, and Lammens' index that has three indicators which are employment, poverty, and income inequality. Research design, data, and methodology: This study uses panel data of 13 districts/cities in Central Sulawesi Province from 2015 to 2019. The statistical regression used is the panel regression method to analyze the determinants of inclusive growth there. Results: The study found that the average inclusive growth of districts/cities in Central Sulawesi is increasing from the low-level in 2015 to mid-level in 2019. The panel's data regression using fixed effect model FGLS-SUR found Investment (GFCF), Road Infrastructure, HDI, and Processing Industry have a significant positive effect. Regional minimum wage (RMW) has a significant negative effect. Government Expenditure on Education and Health Function has no significant positive effect on inclusive growth. Conclusions: throughout the study period, gini coefficient and poverty rate is slowly decreasing, while employment to population ratio remains volatile in districts/cities of Central Sulawesi.

소득주도 성장의 평가와 향후 방향 (Income led growth in Korea: issues, implications and roles)

  • 김태일
    • 한국사회정책
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    • 제25권3호
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    • pp.175-208
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    • 2018
  • 본 글의 목적은 여전히 논쟁 중인 한국의 소득주도 성장정책을 평가하는 것이다. 이를 위해 먼저 소득주도 성장론의 내용은 무엇이며, 왜 이 이론이 등장했는지, 그리고 한국경제에 갖는 의의가 무엇인가를 논의했다. 다음으로 한국경제에서 성장 전략으로서 소득주도 성장의 역할은 무엇인지를 논의하고 향후 정책 방향을 제시했다. 서구에서 소득주도성장 이론은 경제에서 수요의 역할을 중시하는 케인스 학파의 전통에서 나온 것으로서 기본 개념은 거의 80년 전에, 그리고 현재의 이론 모델은 30년 전에 등장했다. 한국 경제학계 일부에서 이에 주목하기 시작한 것은 2010년 ILO 연구자들이 이를 논의하면서부터다. 최근 들어 소득주도성장론이 주목받게 된 것은, 20세기 후반 이후 전 세계적으로 노동소득 분배율 하락과 양극화 경향이 심해졌고, 그래서 불평등 심화는 성장을 저해할 수 있다는 우려가 공감대를 형성했기 때문이다. 국민소득 중 노동의 몫을 높임으로써 경제성장을 이끌 수 있다는 소득주도성장 전략의 실효성에 대해서는 이론적으로나 실증적으로나 논란이 존재한다. 그러나 소득주도성장 전략이 등장하게 된 배경과 취지에는 공감할 수 있다. 소득주도성장론은 단기적인 성장 전략이 아니며, 또한 성장 전략의 중심이 되기도 어렵다. 그러나 오늘날의 사회경제구조에서 소득주도성장론의 처방은 경제 시스템을 건강하게 함으로써 지속 가능한 성장을 가능하게 한다는 면에서 의의를 지닌다. 아울러 서구와 달리 한국에서는 정부의 복지정책이 소득주도성장론 처방의 일부로서 의미있는 역할을 할 수 있다.

기업의 R&D 구조변화와 정부정책 방향에 대한 소고

  • 송종국;서환주
    • 기술혁신연구
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    • 제11권1호
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    • pp.79-97
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    • 2003
  • R&D expenditure of Korean firms has been increasing drastically since 1980 and occupied 84% of total R&D expenditure in 1994. After 1994, however, the growth rate of industry R&D expenditure has dropped below single digit. R&D concentration rate of upper 20 companies declined from 61.9% in 1999 to 49.8% in 2001. The technology trade balance has diverged by 2.8 billion dollars in 2000 compared to around 0.3 billion dollars in 1985. We find several reasons on declining the industry R&D growth rate in Korea. First, we carefully say there might be an crowding out effect in increasing government R&D investment from Granger causality test between industry R&D and government R&D. Second, the decreasing benefit of tax credit since 1992 on industry R&D expenditure has caused the decrease of industry R&D growth rate. Third, the type of R&D cost becomes to similar to matured countries type of cost, which means the portion of capital expenditure has been decreased since late of 1980s. Therefore, industry R&D growth rate gets to saturation point. We draw several policy implications from the changing structure of business R&D of Korean company. Firstly, to stimulate industry R&D investment Korean government needs to strengthen tax credit policy. Secondly, to induce foreign direct investment Korean government needs to establish technology infrastructures and high quality of manpower. To utilize foreign technology resources Korean government need to introduce global R&D program executed by foreign scientist as an Project Leader.

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