• 유기물자원화
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• 제10권4호
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• pp.103-111
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• 2002

본 연구는 음식물쓰레기 내에 포함되어진 염분이 음식물쓰레기의 자원화공정 및 최종제품의 사용단계에 있어서 영향의 우려가 있는 점을 감안하여 음식물쓰레기의 자원화공정 및 사용단계에서 염분의 식물에 대한 영향을 정밀검토하기 위하여 수행되었다. 염분의 농도가 퇴비화 반응에 미치는 영향을 퇴비화온도, 이산화탄소 발생량, pH에 의하여 비교 검토한 결과, 염분의 농도가 습량기준 1%까지는 영향이 적었으며. 2, 3%에서 영향이 나타나기 시작하여 6%에서는 크게 나타났다. 염분함량이 퇴비화에 미치는 영향을 고려했을 때 3%까지는 그다지 크지 않아 무관하다고 할 수 있으나 염분함량이 3%이상에서는 유기물 분해효율을 저하시키는 요인으로 작용함을 알 수 있었다. 염분의 영향을 최소화하기 위해서는 염분의 농도를 습량기준으로 1%이하에서 운전하는 것이 타당한 것으로 확인되었으며, 실제 현장에서는 유입되는 음식물쓰레기가 습량기준이 1%이하인 것을 감안할 때 퇴비화반응에는 크게 영향을 미치지 않는 것이 확인되었다. 염분의 농도가 식물의 생육에 미치는 영향을 검토하기 위하여 실제 자원화시설인 A시, S시, S구, K구에서 시료를 채집하여 인위적으로 염분의 농도를 0.5%, 0.8%, 1.2%, 1.6%, 2%, 2.5%. 3%로 조절하여, 실험실에서 반응에 미치는 영향을 검토하면서 생성된 퇴비를 이용하여 유식물 실험과 Pot실험을 수행하여 검토한 결과, 퇴비에 따라서는 3%까지 식물의 성장에 미치는 영향이 적었으며, 3%이상에서 영향이 확연하게 관찰되었다. 3%이내에서 식물에 대한 영향이 나타나 것은 퇴비가 미부숙되어 유기물에 의한 영향이 큰 것으로 판단되었다.

• Molecules and Cells
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• 제24권2호
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• pp.224-231
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• 2007

$H_2O_2$, as an example of oxidative stress, induces cardiac myocyte apoptosis. Bcl-2 family proteins are key regulators of the apoptotic response while their functions can be regulated by post-translational modifications including phosphorylation, dimerization or proteolytic cleavage. In this study, we examined the role of various protein kinases in regulating total BAD protein levels in adult rat cardiac myocytes undergoing apoptosis. Stimulation with 0.1 mM $H_2O_2$, which induces apoptosis, resulted in a marked down-regulation of BAD protein, which is attributed to cleavage by caspases since it can be restored in the presence of a general caspase inhibitor. Inhibition of PKC, p38-MAPK, ERK1/2 and PI-3-K did not influence the reduced BAD protein levels observed after stimulation with $H_2O_2$. On the contrary, inhibition of PKA or specifically $PKC{\delta}$ resulted in up-regulation of BAD. Decreased caspase 3 activity was observed in $H_2O_2$ treated cells after inhibition of PKA or $PKC{\delta}$ whereas inhibition of PKA also resulted in improved cell survival. Furthermore, addition of okadaic acid to inhibit selected phosphatases resulted in enhanced BAD cleavage. These data suggest that, during oxidative stress-induced cardiac myocyte apoptosis, there is a caspase-dependent down-regulation of BAD protein, which seems to be regulated by coordinated action of PKA, $PKC{\delta}$ and phosphatases.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 추계학술대회 논문집
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• pp.420-424
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• 1997

n the ballscrew slide system the ~najor problems in accomplishing the high-speed and high-precision are the friction between elements and the decrease of axial stiffness. Especially the friction on the guide have a bad effect on the precision of slidlng. Furthermore stick-slip occur when the low stiffness of slide system. The sticli-slip have a bad influence on the precision. In this research, the affection of stick-slip friction to the precision of the slide system is studied and the possible solution of the precision is proixjsed.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1993년도 봄 학술발표회 논문집
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• pp.34-39
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• 1993

Recently inappropriate aggregates are used as a raw material for ready-mixed concretes, due to the shortage of natural aggregate resources and the prohibition of their extraction for the environmental protection. We, therefore, have conducted experiments to obtain some knowledge of properties of domestic aggregates and to investigate subsequent changes in the properties of the fresh and hardened concretes. To this end, aggregates currently used in 13 domestic ready-mixed concrete plants were collected. Most of aggregate used in this experiment satisfied the KS in density and unit weight. But some of the aggregates have the particle size distribution that can effect bad influence on concrete. In this experiment the aggregates are found to have a bad particle size distribution, resulting in high amount of a unit water content and a unit cement content in concrete.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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• pp.79-84
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• 2001

Because the WFS(Waste Foundry Sand), by-product of a casting factory, is generally a smaller particle than a fine aggregate, it has a bad influence on quality of concrete. Especially, the grading of aggregate is a very important factor in the case of concrete-based products having low water cement ratio manufactured by vibration and pressing method. Therefore, it is necessary to use WFS with the suitable grading of aggregate that it don't has a bad Influence on the quality of concrete-based products. This study investigated the suitable using proportion of WFS by means of the composition method of aggregate suggested by Driscoll. The results showed that it was desirable to use 10% of WFS since higher strength was developed with that amount.

• Journal of Chest Surgery
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• 제49권2호
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• pp.126-129
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• 2016

We report an interesting case in which overt aortic dissection mimicked two episodes of aortic intramural hematoma (IMH) (Stanford A, DeBakey I). This took place over the course of four days and had a major influence on the surgical treatment strategy. The first episode of IMH regressed completely within 15 hours after it was clinically diagnosed and verified using imaging techniques. The recurrence of IMH was detected three days thereafter, resulting in an urgent surgical intervention. Overt aortic dissection with evidence of an intimal tear was diagnosed intraoperatively.

• 유통과학연구
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• 제15권1호
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• pp.15-20
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• 2017

Purpose - Other customers within the same service environment do influence a customer' attitude and behavior toward a service firm. Specially, other customers' misbehaviour and various service problems stemmed from them could make the other customers suffer some bad experiences. However, there are few studies to answer how the spillover effect of a service failure arisen from other customers' misbehavior. This study is aimed to examine how service failure due to the dysfunctional behavior of other customers has negative effects on customer evaluation with the service provider. Research design, data, and methodology - Data were collected from a survey based on consumers' retrospective experiences in airline service context. The hypothesized relationships were tested conducting structural equation modeling. Results - Our results show that the attribution of a firm responsibility for other-customer failure has a positive influence on customer's recovery expectation, in turn, it is negatively related to customer satisfaction. Furthermore, perceived service provider's efforts positively influence customer satisfaction. Conclusions - Although a service failure was caused by other customer's misbehavior, employees should be able to alleviate any bad feelings of the affected customers. Furthermore, service providers should provide proper recovery efforts for solving problems caused by the other customers for the wounded customers.

• 한국의류학회지
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• 제30권5호
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• pp.762-771
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• 2006

This study provides the basis far salesman to present formal style in suggesting Good-Bad formal style as well as in examining a meaning structure and valuation differences of visual valuation. Stimulus pictures has been chosen consequently 76 pieces through the preliminary inquiry who are working at department store, franchise salesman, car salesman, insurance staff and other salesmen. The tool for visual valuations about suit style is composed of 7 points of Likert type by making 21 questionnaires from the preliminary study. Collecting data is 512 pieces are used to analyse. The duration to collect data was from August 5th to 20th in 2004 and SPSS statistics package program has been used. At first, main factors according to the visual valuation of formal style are Attractiveness, Having abilities, Uncomfortableness. In second, Good formal style shows more attractive and looks having more abilities than Bad formal style and less uncomfortable. In third, in the relations of Good-Bad formal style and demographics, there is meaningful differences according to gender, age, job, salary. In fourth, in the relations of a purchase purpose and visual valuations of formal style, for Good-Bad valuation, the first impression is the most important factor and it is likely to be related to the purchase purpose, on the other hand, the purchase purpose has related to impression the most. It has presented that Good-Bad valuation and purchase purpose have an influence on the factor of Attractiveness.

• 한국조리학회지
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• 제17권4호
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• pp.104-120
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• 2011

베이커리 기업 광고에 대한 연구 부족과 확대되고 있는 프랜차이즈 형태의 베이커리 경영시스템에서 크리스마스 시즌 유명 연예인 광고모델을 기용한 스타마케팅 활동을 적극적으로 하고 있다. 본 연구의 목적은 베이커리의 크리스마스 광고에 대한 유명 연예인 광고 모델의 속성이 소비자가 인지하는 광고태도, 기업 명성, 기업 신뢰가 어떠한 영향관계가 있는지를 파악하여, 높은 광고비의 지불에도 불구하고 크리스마스 케이크의 판촉수단으로 활용되는 스타마케팅의 장기적인 효과를 실증분석 하고자 하였다. 이러한 검증 결과는 베이커리 산업에의 성공적인 경영 관리에 있어 매우 중요한 핵심요소라 판단되며, 베이커리 브랜드가 기능적 혹은 물리적인 면에서 차이가 없어지면서 브랜드 차별화의 어려움을 겪고 있는 현 시점에서 전략적 시사점을 제안하고자 한다. 본 연구모델의 결과 $x^2$=313.294(df=218, p<0.001)의 수준에서 GFI=.911, AGFI=0.887, NFI=0.935, CFl=0.979, RMR=.126으로 나타났다. 첫 째, 광고 모델 태도에서 모델신뢰성과 모델매력성은 광고 태도에 정(+)의 영향 관계가 있는 것으로 나타났다. 둘째, 광고태도는 기업 명성과 기업 신뢰에 정(+)의 영향 관계가 있는 것으로 나타났으며 셋째, 기업 명성 또한 기업 신뢰에 정(+)의 영향 관계가 있는 것으로 나타났다.

• 대한치과기공학회지
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• 제39권3호
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• pp.187-196
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• 2017

Purpose: The purpose of this study was to investigate the factors contributing to temporomandibular joint disorder symptoms. Methods: The survey was conducted from May 1 to June 10 2017 against college students(120 males and 123 females) in Daejeon and Gangwon who understood the purpose of this study and agreed to participate. Results: First, The most frequent symptom of temporomandibular joint disorders is noises from the joint (male 45%, female 61.8%), followed by headache or neck pain (male 25.8%, female 52.8%). There was shown a significant difference by gender in all items except for jaw dropping, poor alignment of teeth and trauma(p<0.05). Second, Looking into the correlation between stress and subjective symptoms of Temporomandibular joint disorders, The stress of Temporomandibular joint disorders showed more significant relation with realistic issues such as academic task, economic burden (e.g., treatment cost), future career, and life values rather than aspect of social relationship(p<0.01). Conclusion: As a result of analyzing variables to understand the influence of stress on temporomandibular joint disorders, the accumulated number of bad habits, stress and temporomandibular joint disorders showed a significantly positive correlation with one another (p<0.05). In other words, the higher the stress level the severe the temporomandibular joint disorders; the more the bad habits the severe the temporomandibular joint disorders;