• 제목/요약/키워드: production regimes

검색결과 113건 처리시간 0.024초

생산레짐과 일가정양립정책이 성별 임금격차에 미치는 영향연구 (Production Regimes, Family Policy and Gender Wage Gap)

  • 강지영
    • 사회복지연구
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    • 제48권3호
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    • pp.145-169
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    • 2017
  • 신 사회위험의 하나의 축은 가족 구조의 재편과 여성의 경제활동참여율 증가에 따라 발생한 새로운 욕구들이다. 일가정양립정책이 여성 경제활동에 미치는 영향에 대한 연구는 활발하게 이루어지고 있음에도 불구하고, 여성 취업에 영향을 미칠 수 있는 제도로서 생산레짐의 함의를 살펴보는 연구는 미진한 실정이다. 본 연구는 룩셈부르크 소득연구(Luxembourg Income Study) 자료를 이용하여 생산레짐과 일가정양립정책이 성별 임금격차에 미치는 영향을 분석하였다. 분석결과, 기업특정적 기술 활용이 활발한 조정경제시장에서 여성의 임금이 남성에 비해 통계적으로 유의하게 낮게 나타나 성별 임금격차가 증가하는 것으로 나타났다. 반면, 육아휴직과 보육지출은 여성의 임금순위를 향상시키는 것으로 나타나 성별 임금순위격차를 약화시키는 것으로 분석되었다. 본 연구는 제도적 측면에서 생산레짐과 일가정양립정책이 여성의 임금순위에 미치는 영향을 실증적으로 평가했다는 데 그 의의가 있다.

Above- and below-ground vegetative responses to prescribed fire regimes in a Chesapeake Bay tidal brackish marsh

  • Leonard, Cheryl A.;Ahn, Chang-Woo;Birch, Dixie
    • Journal of Ecology and Environment
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    • 제33권4호
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    • pp.351-361
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    • 2010
  • The primary purposes for using fire are to enhance marsh vegetation to support waterfowl, and to manage invasive plant species. The study was conducted for two consecutive years in 2004 and 2005, investigating the effects of prescribed fire regimes on vegetation biomass in tidal brackish marsh areas of the Blackwater National Wildlife Refuge located on the eastern shore of Maryland, USA, that are under relatively similar environmental conditions. Four different burn regimes (i.e., annual burn, 3-5 year burn, 7-10 year burn, and no burn) were applied in the study. Above- and below-ground vegetation biomass samples as affected by the different burn regimes were harvested in each year for five plant species native to the marsh; Distichlis spicata, Spartina alterniflora, Schoenoplectus americanus, Spartina cynosuroides and Spartina patens. No significant difference was found either in total above-ground biomass or in above-ground biomass by species between burn regimes in 2004. However, more total above-ground biomass was produced in annual burn regime in 2005 than in the other burn regimes. There were no consistent effects of burning on vegetative biomass production by species, but it seemed D. spicata was somewhat benefited by prescribed burning for its biomass production. Moreover, the stem density for D. spicata under annual burn regime was significantly higher than that in the other burn regimes, showing some positive effects of burning on vegetation. The below-ground biomass was significantly greater in 2004 than in 2005, yet with no significant difference between burn regimes in either year. A longer-term monitoring is strongly recommended.

Effect of Concentrate Feeding Frequency versus Total Mixed Ration on Lactational Performance and Ruminal Characteristics of Holstein Cows

  • Fan, Yang-Kwang;Lin, Yaun-Lung;Chen, Kuen-Jaw;Chiou, Peter Wen-Shyg
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권5호
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    • pp.658-664
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    • 2002
  • This study was conducted to determine a proper feeding regime for lactating Holstein cows during the warm season in Taiwan. In Feeding Trial, 21 lactating Holstein cows were randomly allotted into three feeding regimes in a Completely Randomized Design. The feeding regimes were roughage fed ad libitum along with concentrate fed either twice daily (2C) or four times daily (4C), and total mixed ration (TMR) for 8 weeks. No significant differences among the three feeding regimes were found in body weight changes, and intakes in terms of dry matter, crude protein and net energy. For milk yield and 4% FCM yield, 4C were higher than the other two feeding regimes (p<0.05). No significant differences were found in milk compositions or differences noted in the yields of the respective milk components. TMR was worse than 2C and 4C (p<0.05) in milk production efficiencies in terms of dry matter intake per kg milk yield, crude protein intake per kg milk protein yield, as well as dry matter intake, net energy intake and crude protein intake per kg 4% FCM yield. Three ruminally fistulated Holstein dry cows were randomly assigned into the same three feeding regimes in a 3${\times}$3 Latin Square Design. No significant differences were found among the feeding regimes in ruminal pH, ammonia nitrogen, total VFA concentration, molar percentages of VFA, and acetic acid: propionic acid ratio (C$_2$/C$_3$). Taken all together, roughage fed ad libitum and concentrate fed four times daily was the better feeding regime for lactating cows during the warm season in Taiwan.

Anaerobic digestion of food waste to methane at various organic loading rates (OLRs) and hydraulic retention times (HRTs): Thermophilic vs. mesophilic regimes

  • Kumar, Gopalakrishnan;Sivagurunathan, Periyasamy;Park, Jong-Hun;Kim, Sang-Hyoun
    • Environmental Engineering Research
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    • 제21권1호
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    • pp.69-73
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    • 2016
  • Generation of food waste is a serious issue that needs to be addressed worldwide. Developing suitable treatment methods while generating energy (methane) is a common practice for sustainable treatment of waste. In this study, methane generation by food waste was investigated in mesophilic and thermophilic regimes at various hydraulic retention times (HRTs) and organic loading rates (OLR). In temperature regimes, influent concentrations and HRTs ranged from 30 to 110 g COD/L and 18 to 30 days, respectively, which corresponding to an OLR of 1.0 to $6.1kg\;COD/m^3-d$. Better methane production and organic removal was observed under thermophilic conditions because of the enhanced hydrolysis of complex polymers and microbial activity at higher temperature. The peak methane productivities attained in thermophilic and mesophilic regimes were 1.30 and $0.99m^3/m^3-d$, respectively. The maximum methane yields were achieved at 50 g COD/L and HRT of 24 d in both cases, and the values were 264 and $221m^3/ton$ COD, respectively. The results of this study will facilitate the development of sustainable methane production technologies using food waste as a feedstock.

Atmospheric Photochemistry in Low-and High-NOx Regimes

  • Kim, Do-Yong;Soda, Satoshi;Kendo, Akira;Oh, Jai-Ho
    • 한국환경과학회지
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    • 제16권1호
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    • pp.1-8
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    • 2007
  • Atmospheric photochemistry of $O_3-NOx-RH$ were considered theoretically, to clarify the reasons for the different trends of between the formation of photochemical oxidants (Ox) and its primary pollutants for the Low-and High-NOx regimes. Equations of OH, $HO_2$, and production of ozone ($O_3$) as a function of nitrogen oxides (NOx) and reactive hydrocarbons (RH) were represented in this study. For the Low-NOx regime, $HO_2$ radical is proportional to RH but independent of NOx. OH radical is proportional to NOx but inversely-proportional to RH. $O_3$ production is proportional to NOx but has a weak dependence on RH. For the High-NOx regime, OH and $HO_2$ radicals concentrations and $O_3$ production are proportional to RH but inversely-proportional to NOx. In addition, the Osaka Bay and surrounding areas of Japan were evaluated with the mass balance of odd-hydrogen radicals (Odd-H) using CBM-IV photochemical mechanism, in order to distinguish the Low- and High-NOx regimes. The Harima area (emission ratio, RH/NOx = 6.1) was classified to the Low-NOx regime. The Hanshin area (RH/NOx = 3.5) and Osaka area (RH/NOx = 4.3) were classified to the High-NOx regime.

생산과 복지의 제도적 상보성에 관한 비교연구: 선진자본주의 국가를 중심으로 (Institutional Complementaries of Production and Welfare: Some Evidences from the Advanced Welfare Capitalist Countries)

  • 안상훈
    • 한국사회복지학
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    • 제57권2호
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    • pp.205-230
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    • 2005
  • 본 연구는 복지체제와 생산레짐이 서로 연관성을 지니는지, 만약 연관된다면 어떤 방식으로 조응하는지, 그리고 현대복지국가의 두 가지 목표라고 할 수 있는 생산과 분배에서 어떤 차이를 노정하고 있는지에 관한 경험적 분석이다. 본 연구의 분석은 크게 두 부문으로 나뉜다. 하나는 Esping-Andersen의 복지체제론에서 이야기되는 세 가지 체제가 생산과 복지의 포괄적 조응을 담아낼 수 있는가에 관한 군집분석이고, 다른 하나는 이러한 세 가지 체제들이 생산과 복지에 관한 다양한 변수들에 있어 통계적인 차이를 보이는지에 관한 일원분산분석이다. 본 연구의 분석결과는 다음과 같다. 첫째, 군집분석 결과, 자본주의의 다양성에 관한 논의와 세 가지 복지자본체제에 관한 논의는 하나의 분석틀 안에서 소화될 수 있음이 밝혀졌다. 둘째, 일원분산분석 결과, 생산과 복지에 관한 대표적인 변수들이 세 가지 체제 사이에 상당한 차별성을 보임이 확인되었다. 무엇보다 흥미로운 결과는 사민주의, 보수주의, 자유주의 체제들이 유사한 수준의 경제적인 성과를 보이면서도 분배성과에 있어서는 매우 상이한 수준을 지닌다는 점이다.

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A New Technology of Hardening Porous Materials of Titan Powders

  • Belyavin, K.E.;Minko, D.V.;Reshetnikov, N.V.
    • 한국분말야금학회:학술대회논문집
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    • 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
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    • pp.1012-1013
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    • 2006
  • A technology of hardening porous materials of titan powders has been elaborated. The technology is based on passing alternating current with duration of ${\sim}10^{-1}{\ldots}10^1$ s through porous ($35{\ldots}40%$) blanks made by method of Sintering by Electric Discharge (SED) by passing a pulse of current with duration of ${\sim}10^{-5}{\ldots}10^{-3}$ s. The influence of technological regimes of porous blanks treatment on their structure and properties is investigated. Geometry and dimension of contact necks between powder particles of obtained samples are evaluated. Variations of porosity and strengths as well as microstructure of porous samples materials before and after treatment are investigated. Optimum range of treatment technological regimes is determined within which porosity of $30{\ldots}35%$ with maximum strength values.

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High Temperature Drying of North American Ginseng for Management Decision Making

  • Bailey, W.G.;Dalfsen, K.B.van;Guo, Y.P.
    • Journal of Ginseng Research
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    • 제27권3호
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    • pp.141-145
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    • 2003
  • The multi-year production cycle for ginseng can be rapidly depreciated by inferior post-harvest activities. This research examines the character of high temperature drying regimes for North American ginseng root to assist management decision making. The objective is a very rapid drying regime, that will not result in physical or chemical damage to the root and that would not alter the actual dry root weight. Research is presented using drying temperatures of 55, 70 and 105 C. Temperatures above these rapidly cause substantive physical damage to the root samples and seriously compromise the dry root values determined. Temperatures below these behaved quite similar to actual dryer regimes (approximately 38 C). Laboratory results indicate that there are differences between the three temperature regimes tested. Careful usage of the 70 C regime, over a period of two to three days in a convection drying oven, has distinct merit.

분배조정과 생산조정의 제도적 상보성에 관한 비교사회정책연구: 소득 불평등에 미친 영향을 중심으로 (A Comparative Study on the Institutional Complementarities in Coordination of the sphere of Distribution and Production: Focus on the Determinants of Income Inequality)

  • 백승호
    • 한국사회복지학
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    • 제57권4호
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    • pp.91-118
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    • 2005
  • 본 연구는 OECD 14개 회원국을 대상으로 복지체제와 생산체제의 조정전략과 이들 사이의 제도적 상보성이 소득 불평등에 미치는 영향을 분석하는 것이 목적이다. 분석에 포함된 기간은 1980년에서 1997년이며, 분석방법은 벡과 카츠(Beck and Katz, 1995)가 제안한 PCSE(Panel Corrected Standard Errors) 방법이 사용되었다. 제도적 상보성은 분배조정과 생산조정 변수의 상호작용 항으로 분석된다. 본 연구의 결과 제도적 상보성 수준이 높을 경우가 그렇지 않을 경우보다 소득불평등 수준을 낮추는 것으로 분석되었다. 또한, 조정전략의 관점에서 볼 때, 분배조정 영역과 생산조정 영역이 모두 전략적 조정을 지향하도록 제도가 구성될 때 소득 불평등 정도를 더 낮추는 것으로 분석되었다. 즉, 복지체제 영역에서 전략적 조정을 지향하는 정책 변화는 생산체제 영역에서 전략적 조정을 증가시키는 정책 변화가 같이 진행될 때 소득 불평등 수준을 더 낮출 수 있다는 것을 확인하였다.

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