• 한국생활과학회지
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• 제13권5호
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• pp.637-646
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• 2004

The purpose of this study is to examine the relation between parental strain and marital adjustment of employed mothers after their transition to the parenthood, and to investigate buffering effect of social support on the relation. The parental strain variables (physical strain and emotional strain) appear to be significant predictors of marital adjustment for employed mothers with first baby. The analysis on interaction effect indicates that social support can be a positive buffering indicator. A comparison reveals that mothers with high physical strain have significantly higher marital adjustment than those with low strain. But in the context of high social support, the difference of marital adjustment between the two mothers is reduced.

• 한국축산시설환경학회지
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• 제21권3호
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• pp.77-82
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• 2015

This survey was conducted to collect basic data about the effect of buffering zone installation in weaned pig house. Buffering zone was installed either inside or outside of pig house to compare changes of temperature, humidity and air velocity of pig room. The body weight and mortality of weaned pigs in house with buffering zone was also measured. There was no difference in temperature, humidity and air velocity between inside and outside buffering zone. Mortality of weaned pig in house with buffering zone was drastically decreased compare to pigs in house without buffering zone that could be useful to maintain constant temperature and decrease mortality.

• 한국지하수토양환경학회지:지하수토양환경
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• 제18권1호
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• pp.129-136
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• 2013

This research was conducted to investigate effects of acid buffering capacity and soil component in treatment of phenanthrene using electrokinetic-Fenton process. In Hadong clay of high acid buffering and low iron oxide content, it was difficult to oxidize phenanthrene due to shortage of iron catalyst and scavenger effect of carbonate minerals. The desorbed phenanthrene conductive to Fenton oxidation was transported toward cathode by electroosmotic flow. However, in Youngdong illitic clay, oxidation of phenanthrene near anode readily occurred compared to Hadong clay due to high iron content and low acid buffering capacity.

• 전자공학회논문지
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• 제53권8호
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• pp.19-27
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• 2016

IP 네트워크에서 에너지 절약을 위한 한 가지 방안으로 적응적 버퍼링 기법을 적용한 버스트 패킷 구성 및 그의 알고리즘에 대한 연구가 진행되어 왔다. 본 논문은 IP 네트워크의 ingress 라우터에서 버스트 스트림 패킷을 구성할 때, 에너지 절약을 위한 패킷 버퍼링 구간 결정 방법에 대해 검토한다. 특히 ingress 라우터의 입력 단에서 에너지 절약 효율을 높이기 위해 버스트 스트림 패킷을 만들 때 적응적 버퍼링 구간 및 구현 기법이 요구된다. 본 논문에서는 현재 버퍼링 구간은 과거 버퍼링 구간의 입력 트래픽을 기반으로 결정하는 최선의 적응적 역함수 버퍼링 결정 방식을 제안하고, 그의 에너지 절약과 지연 특성을 시뮬레이션을 통해 분석한다. 본 논문에서 적절한 역 지수함수를 이용하여 버스트 스트림 패킷 구성을 위한 버퍼링 구간을 결정하면, 에너지 절약 효과의 개선 및 평균 지연 변이를 감소시킬 수 있음을 나타낸다. 이 방법은 다른 방법에 비해 우수한 특성을 가지고 있음을 확인한다. 그리고 제안 방법은 다양한 입력 트래픽 유형에 민감하게 반응하지 않으며, 실용적인 방법임을 나타낸다.

• 아동학회지
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• 제13권2호
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• pp.175-188
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• 1992

This study investigated the relation between stressful life events and adjustment in elementary school children, with particular emphasis on the potential main and stress-buffering effects of social support and social problem solving skills. 4-6 graders (N=170) completed the Social Support Appraisals Scale(SSAS) and social problem solving skills task. The SSAS is a 31-item measure that taps the child's perceptions or appraisals of family, peer, and teacher support. Their parents provided ratings of stress in the child's environment and ratings of the child's behavioral adjustment. Teachers provided ratings of the child's behavioral and academic adjustment. Hierarchical multiple regression analyses and graphic display were used to analyze the data. The major findings were that (1) The results for parent-rated problems supported a stress-buffering model for family support and problem solving. (2) The results for teacher-rated problems were consistent with the stress-buffering model of social support. (3) The results for grade-point average supported a main effect model for problem solving. peer support, and family support. In addition, teacher support had the strongest stress-buffering effect on grade-point average.

• 생명과학회지
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• 제11권3호
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• pp.197-202
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• 2001

This study was conducted to investigate the effect of simulated acid solution(SAS) on acid buffering capacity, chlorophyll content and butrient leacking in 4 herb species(Petunia hybrida Vilm, Gomphrena globosa L. Celosia cristat L. Salvia officinallis L) . The acid buffering capacity in the leves was increased in the treatment of pH 3.0 in Celosia L., whereas it was increased at pH 4.0 in Petunia Petunia hybrida Vilm. and Gomprean globosa L.. But, the acid buffering capacity of the leaves did not work at ph 2.0 treatment in 4 herb species. With decreasing pH level, the chlorophyll content of Petunia hybrida Vilm. and Gomphrena globosa L. Was markedly decreased than that of Gelosia cristata L. and Savia officinalis L. As the pH levels decreased from 5.6 to 2.0 the nutrient leaching from leaves was significantly increased in 4 herb species. In pH 4.0 and 5.6, the concentrations of nutrient leaching from leaves were higher in Perunia hybrida Vilm. and Gomphrean globosa L. than Gelosia cristata L. and Salvia officinalis L., Based on the results, there was a great differences in response to SAS among the 4 herb species. Im general, Gelosia cristata L. and Salvia officinalis L. represented a higher tolerance to SAS Petunia hybrida Vilm, and Gomphrena globosa L..

• 한국가구학회지
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• 제10권1호
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• pp.43-49
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• 1999

The pH and buffering potential for water extract of seven hardwoods and three softwoods were determined. The pH values ranged from 3.81 to 5.51 for hardwoods and 4.08 to 5.49 for softwoods. The gelation time for a urea-formaldehyde resin for each woods was determined and found to be a range of one minute thirty seven seconds to two minutes thirty nine seconds. Results shows that gelation time of a urea-formaldehyde resin was directly correlated to the pH and inversely correlated with acid buffering potential for seven hardwoods and three softwoods aqueous extracts

• 미생물학회지
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• 제19권3호
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• pp.121-127
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• 1981

The constituents of molasses and effect of pH precipitate formation in molasses solution, vary according to its producing districts. The formation of precipitation is not so changeable in the range of buffering zone of molasses solution(pH4.3-6.3) in philippine molasses according to the change of pH value. On lower or higher than the range of buffering zone, the precipitation is increased from pH 4.3 to 2.8 and from 6.3 to 8.1, it is decreased when pH value is lower or higher than the pH value range. For molasses clarifying, it had better adjust the pH of molasses solution to neutral or weak alkali range out of the alkai side of the buffering zone, with lime solution. And then, add the calcium super phosphate solution to pH value of alkali side in buffering zone, as much as the pH of clarified molasses solution can reach to middle value in buffering zone. For the equilibrium of pH value on clarifying molasses, it takes plenty of time more than 6 hours.

• 한국콘텐츠학회논문지
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• 제14권3호
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• pp.241-249
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• 2014

본 논문은 청소년, 성인, 노인의 우울과 자살위험간의 관계에서 가족결속도의 완충효과를 파악하는데 연구 목적이 있다. 이를 위해 2010년 5월부터 8월 사이에 청소년 399명, 성인 473명, 노인 370명을 대상으로 전국 10개 도시에서 설문조사를 하였다. 주요 연구결과를 살펴보면, 첫째, 자살위험과 우울감 수준은 노인이 가장 높고, 청소년, 성인 순이었으나, 가족결속력은 성인이 가장 높고, 노인, 청소년 순이었다. 둘째, 우울과 자살위험간의 관계에서 가족결속도의 완충효과를 분석한 결과 청소년과 성인의 경우에만 유의미한 결과가 나타났다, 즉, 청소년과 성인의 가족결속도는 우울감이 자살위험에 미치는 영향을 완화시키는 것으로 나타났다. 이는 청소년과 성인의 자살감소를 위해서 가족결속력을 향상시켜야 함을 제시하는 결과이다. 그러나 가족관계가 어느 시기보다 중요한 노인의 경우 우울과 자살생각간의 관계에서 가족결속도의 완충효과가 검증되지 않았다. 이에 대한 해석을 노년기 자살의 특성에서 논의하였다.

• 한국축산식품학회지
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• 제38권2호
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• pp.273-281
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• 2018

Preheating conditions (low-, medium-, and high heat-) did not significantly affect the buffering capacity (BC) of skim milk powder (SMP), whereas the level of demineralization significantly affected the BC of whey powders (WP). Heat treatment ($85^{\circ}C$ for 30 min) of both SMP and WP (90% demineralized) mixtures (88:12, 76:24, 64:36 and 52:48; SMP:WP) resulted in a reduced BC, and the extent of this reduction increased with the proportion of WP increased in the samples. High-buffering milk prepared by the addition of phosphate salts (40 mM $NaH_2PO_4$ and 60 mM $Na_2HPO_4$) delayed the rate of pH decline during yoghurt fermentation. The high-buffering yoghurt showed a significantly higher water holding capacity (WHC) than that of control yoghurt (p<0.05), as well as a more uniform and interconnected microstructure with small pore sizes than those of control yoghurt. No significant differences were found between high-buffering and control yoghurt regarding the viable bacterial counts of starter. The manipulation BC can potentially improve the quality characteristics of yoghurts, such as WHC and texture.