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녹차추출물과 테아닌 복합물의 신경전달물질 조절을 통한 항스트레스 효과
박상기(Sang-Ki Park),박형국(Hyoung Kook Park),김태일(Tae Il Kim),홍진태(Jin Tae Hong),이원경(Won Kyung Lee) 대한약학회 2009 약학회지 Vol.53 No.5
Various neurotransmitters are involved in regulating stress systems. In this study, we investigated the combination relieving effect of green tea extract(GTE) and L-theanine on the stress induced by electric foot shock. Four week oral administration of GTE (24 mg/kg), L-theanine (4 mg/kg) or their combination reduced the levels of dopamine, noradrenaline and corticosterone in blood, brain cortex, hippocampus, and striatum, wherease increased serotonin level. The combination of GTE and L-theanine showed much greater effects than single treatment of each component, and the effects are comparable to diazepam (2 mg/kg). Therefore, this study suggests that the combination of GTE and L-theanine may act effective and be useful for stress relieving treatment.
노인의 여가몰입이 생활만족도에 미치는 영향에 관한 연구 -사회적지지의 조절효과 검증-
박상기 ( Park Sang Ki ) 한국사회복지경영학회 2018 사회복지경영연구 Vol.5 No.2
본 연구는 노인의 여가몰입이 생활만족도에 미치는 영향에 관하여 사회적지지의 조절효과를 검증하기 위하여 SPSS 23.0 통계프로그램을 이용하여 분석하였으며 연구결과는 다음과 같다. 분석결과를 요약해보면, 노인복지시설 이용노인의 여가몰입 중, 인지몰입과 행위몰입은 노인의 생활만족도에 정적인 영향을 미쳤다. 이러한 노인복지시설 이용노인의 여가몰입과 생활만족도 간에는 서로 관계성이 있었고, 그 중에서도 여가몰입의 인지몰입, 행위몰입과 생활만족도의 관계에서 사회적지지는 행위몰입과 생활만족도 간의 관계에서만 조절효과가 있음을 입증하였다. 본 연구의 결과를 통해 첫째, 노인복지시설을 이용하는 노인들의 생활만족도는 여가몰입 중, 인지몰입과 행위몰입을 통해 더욱 향상된다는 것을 알 수 있었다. 이러한 노인의 생활만족도를 향상시키기 위해서는 노인복지시설을 이용하는 노인들이 여가활동을 통해 즐거움, 기쁨, 애호, 재미 등과 같은 감정들과 자신의 의지에 의해 여가활동을 함으로써 여가활동에 대한 적극적인 행위 혹은 정보탐색 등을 할 수 있는 환경적인 시설을 제공하는 것이 필요하다. 둘째, 노인복지시설을 이용하는 노인들의 생활만족도는 노인들이 행위적으로 여가에 몰입할 때, 사회적지지가 뒷받침된다면 그에 따른 생활만족도는 더욱 증폭된다. 그러므로 이들 간의 관계에서 노인들의 생활만족도를 증대시키기 위해서는 노인들이 직접적으로 여가활동에 참여하도록 정서적, 평가적, 정보적, 물질적으로 독려해준다면 노인들의 신체적·정신적으로 자신의 생활에 대한 만족도가 향상될 것으로 검증되었다. To verify the regulation effect of social support regarding an influence of senior’s immersion in leisure on their life satisfaction, this study analyzed the data using SPSS 23.0 statistics program and follow is its result: To summarize the analysis result, a cognitive immersion and behavioral immersion, among the leisure immersion of seniors who use welfare facilities for senior citizens, had a positive influence on their life satisfaction. A leisure immersion of seniors who use welfare facilities for senior citizens and their life satisfaction had a certain relationship with each other. Among them, in a relationship between a cognitive immersion, behavioral immersion from leisure immersion and their life satisfaction, it was verified that for the social support, the regulation effect is shown only in a relationship between a behavioral immersion and their life satisfaction. From this study result, firstly, the fact that the life satisfaction of seniors who use welfare facilities for senior citizens is improved with a cognitive immersion and behavioral immersion was verified. To improve the life satisfaction of senior, it is necessary to provide a facility with an environment that the senior behaves more actively and searches an information about leisure activities, by feeling emotion such as joy, pleasant, like or fun through leisure activities and by acting with their will to do. Secondly, the life satisfaction of seniors who use welfare facilities for senior citizens is amplified when the senior is immersed in leisure behaviorally, if a social support can support them. Thus, to increase the life satisfaction of senior in such relationship, it was verified that the senior will more satisfy with their life mentally and physically, if they are supported by emotional, appraisal, informative and material support to directly participate in the leisure activities.
용접부에 대한 디지털 방사선투과영상과 필름 방사선투과영상의 상질 비교에 관한 연구
박상기(Sang-Ki Park),안연식(Yean-Shik Ahn),길두송(Doo-Song Gil) 한국비파괴검사학회 2011 한국비파괴검사학회지 Vol.31 No.4
용접부에 대한 품질 확보를 위하여 방사선투과시험을 실시하고 있으나 기존의 방사선투과시험은 필름을 사용한 아날로그 방법을 적용하고 있는데 비용과 시간이 많이 소요되고 시험 공정이 복잡하여 개선이 요구되고 있다. 본 연구에서는 용접부에 대한 디지털 방사선투과영상과 아날로그 방사선투과영상의 상질을 비교한 결과, 디지털 방사선투과영상은 디지털 영상 개선 과정으로 인하여 필름 영상에 비해 보다 세밀한 관찰을 할 수 있었다. 따라서 디지털 방사선투과시험이 개선이 요구되고 있는 기존 필름에 의한 방사선 투과시험을 대체할 수 있을 것으로 평가된다. Conventional film radiographic test has been generally and widely used in the inspection on the weldment for quality assurance. On the other hand, since the analog RT is well known for typical time and cost consuming method with complex process of inspection, the industry has researched various ways how to improve radiographic test technology. In this study, we verified the fact that digital RT provides a lot more benefit in effectively detecting defects, ever film details, through digital processing of image enhancement, compared to film RT. As a result, we reached conclusion that digital RT is positively able to replace the film RT in industry in part or in whole
박상기,전재근 한국식품영양학회 1991 韓國食品營養學會誌 Vol.4 No.1
In order to study the extraction mechanism of barley tea, some factors affecting extraction and physical properties of roasted barley and extract were examined. The main results of this study are as follows : 1. The roasted barley particles used as the raw materials were amorphous. Under the extraction condition used the average swelling ratio of the particles and imbibed volume were 1.39 and 1.65㎖/g respectively. The maximum soluble solid content in the roasted barley was 67.07%. 2. The concentrations of the barley extracts were determined by measuring their optical densitis at 420㎚ and the relationship between the concentration(C) and optical density(O. D. ) was expressed as : C = 6.178×O. D. As shown in the following relationship, the viscosities (μ: Ns/㎡) of barley extracts were influenced by concentration(C : ㎏/㎥) and temperature(T : ℃ ). μ=5.6731×10 exp (-4) e^(2.7×10 exp (-3)×C) μ=3.577×10 exp (-3) e^(-3.02×10 exp (-2)×T)
연구논문 : Cypress의 아로마테라피 블랜딩 스펙트럼과 유효한 활용에 관한 연구
박상기 ( Sang Gi Park ) 한국미용학회 2006 한국미용학회지 Vol.12 No.3
Cypress have a long history. The name for cypress comes from the Greek character Cyparissus. Cypress essencial oil extract from cypress tree by steam distillation. This oil is equalizer in oil blending for aromatherapy. Blend equalizers help get rid of sharp edges; they fill gaps and add harmonious flow in a blend. Equalizers can be used as up to 50% of a blend. Therefore cypress have a broad blenging spectrum. Major chemical constituents of Cypress oil as equalizer is monoterpene hydrocarbon(alpha- Pinene, Delta-3-Carene, Cedrol). So cypress is useful to the Circulation, varicose veins, spasms, fluid retention, insomnia, arthritis, menstrual pain, menopausal problems, lymphatic decongestant, prostate decongestant, anti-infectious, anti-bacterial, pancreas insufficiencies, intestinal parasites, bronchitis, hemorrhoids, pleurisy, throat, helps men be more receptive. Therefore aromatherapy experts recommend to blend with cedarwood, pine, lavender, mandarin, clarysage, lemon, cardomon, juniper, Moriccan chamomile, orange ambrette seed, labdanum, benzoin, bergamont, sandalwood and marjoramaccording to the condition of illness and symptoms in throat, skin, hair, body.