• 디지털융복합연구
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• 제16권8호
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• pp.361-371
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• 2018

본 연구는 장애인근로자의 웰니스 요인이 삶의 질과 주관적 행복감에 영향을 미치는지에 관한 실증연구이며, 장애인근로자들이 실생활에서 웰니스를 경험하고 건강지향적인 삶을 살아가는데 기여하고자 한다. 본 조사는 제8차 장애인고용패널조사의 원자료(raw data)를 활용하였으며 탐색적 요인분석을 통해 신체적 웰니스, 정서적 웰니스, 사회적 웰니스, 인지적 웰니스, 직업적 웰니스 요인을 도출하였다. 그리고 웰니스 요인들이 장애인근로자의 삶의 질과 주관적 행복감에 영향을 유의미한 영향을 미치는지 분석하였다. 분석결과, 5개의 웰니스 요인은 장애인의 삶의 질과 주관적 행복감에 유의미한 정(+)의 영향을 미치는 것으로 나타났다. 또한 삶의 질은 주관적 행복감에 유의미한 영향을 미치는 것으로 나타났다. 결론적으로 장애인근로자의 웰니스가 높아져야만 그들의 삶의 질과 주관적 행복감이 향상되는 것을 확인하였다. 앞으로 장애유형에 맞는 웰니스적 프로그램을 개발하고 실생활에 적용할 수 있는 지표개발을 위한 연구가 필요하다.

• Asian-Australasian Journal of Animal Sciences
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• 제33권3호
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• pp.424-435
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• 2020

Objective: The study was conducted to investigate variations in the immunophysiological responses to exercise-induced stress in Jeju and Thoroughbred horses. Methods: Blood samples were collected from the jugular veins of adult Jeju (n = 5) and Thoroughbred (n = 5) horses before and after 30 min of exercise. The hematological, biochemical, and immunological profiles of the blood samples were analyzed. Blood smears were stained and observed under a microscope. The concentration of cell-free (cf) DNA in the plasma was determined using real time polymerase chain reaction (PCR). Peripheral blood mononuclear cells (PBMCs) and polymorphonuclear cells were separated using Polymorphprep, and the expression of various stress-related and chemokine receptor genes was measured using reverse transcriptase (RT) and real-time PCR. Results: After exercise, Jeju and Thoroughbred horses displayed stress responses with significantly increased rectal temperatures, cortisol levels, and muscle catabolism-associated metabolites. Red blood cell indices were significantly higher in Thoroughbred horses than in Jeju horses after exercise. In addition, exercise-induced stress triggered the formation of neutrophil extracellular traps (NETs) and reduced platelet counts in Jeju horses but not in Thoroughbred horses. Heat shock protein 72 and heat shock protein family A (Hsp70) member 6 expression is rapidly modulated in response to exercise-induced stress in the PBMCs of Jeju horses. The expression of CXC chemokine receptor 4 in PBMCs was higher in Thoroughbred horses than in Jeju horses after exercise. Conclusion: In summary, the different immunophysiological responses of Jeju and Thoroughbred horses explain the differences in the physiological and anatomical properties of the two breeds. The physiology of Thoroughbred horses makes them suitable for racing as they are less sensitive to exercise-induced stress compared to that of Jeju horses. This study provides a basis for investigating the link between exercise-induced stresses and the physiological alteration of horses. Hence, our findings show that some of assessed parameters could be used to determine the endurance performance of horses.

• 대순사상논총
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• 제45집
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• pp.1-35
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• 2023

이 글은 대순사상에 나타난 생명이 존재론적 관점에서 어떤 위상을 지니는지 살펴보려는 목적을 갖는다. 존재론이란 있는 것들을 있게끔 만드는 그 '있음'이 무엇인지, '있는 것들'을 실현하는 가능근거가 있는지, 있다면 그것이 무엇인지를 탐구하는 인간 사유의 한 분야이다. 생명은 대순사상의 추기이다. 대순사상의 생명은 현재적 인간을 포함한 창생(蒼生)뿐 아니라 신성, 불, 보살, 귀와 신 등 모든 신명(神明)을 포괄하며 현재와 과거, 미래의 물리적 한계를 넘어 시·공간적으로 무한한 우주적 차원으로 확산한다. 고대 존재론의 시초인 플라톤에 있어서 인간은 '혼(psychē)을 가진 몸(sōma)'이었다. 그러나 인간에게 '몸은 무덤(sōma sēma)'일 뿐이다. 몸은 혼을 가두는 굴레이고 혼을 묶는 사슬이다. 플라톤의 혼의 세 특징은 각각 불사(不死), 상생(相生), 신성(神性)이다. 플라톤의 혼에 대한 생각은 아리스토텔레스를 거쳐, 중세 서양 형이상학과 현대 생명철학자 베르그손에게 이어진다. 베르그손은 생명이란 무화(無化, néantiser)하려는 무(無)를 극복하면서 끊임없이 자기 동일성을 만들어 나가는 힘이다. 베르그손의 생명의 세 가지 특징은 자기동일성, 약동, 자유이다. 대순사상은 선천의 가사적 생명이 해원을 통해 후천의 영원한 생명으로 개벽한다고 본다. 대순사상이 보는 후천 생명의 대표인 지상신선은 이런 대순적 생명성을 잘 보여준다. 지상신선은 불사의 존재이고 영원을 특징으로 하지만 존재 형이상학이 주장하는 부동성은 부정한다. 지상신선은 활동하는 생명 존재이다.

• 소성∙가공
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• 제7권3호
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• pp.282-290
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• 1998

In bulk metal forming processes prediction of tool life is very important for saving production cost and achieving good material properties. Generally the service life of tools in metal forming process is limited to a large extent by wear, fracture and plastic deformation of tools. In case of hot and warm forging processes tool life depends on wear over 70%. In this study finite element analyses are con-ducted to warm and hot forging by adopting suggested wear model. By comparison of simulation and eal profile of die suggested wear model. By comparison of simulation and real profile of die suggested model is verified.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2006년도 하계 학술대회 논문집
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• pp.447-453
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• 2006

This paper presents an area-based stereo algorithm suitable to real time applications. The core of the algorithm depends on the uniqueness constraint and on a matching process that allows for rejecting previous matches. The proposed approach is compared with the left right consistency constraint, being the latter the basic method for detecting unreliable matches in many area-based stereo algorithms. We used the watermelon and tomatoes for experiments.

• 대한기계학회논문집A
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• 제33권10호
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• pp.1139-1143
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• 2009

Pneumatic cylinder is widely used as key component of various industry fields just like automation production line. Recently, people begin to pay attention to reduce development period and cost of pneumatic cylinder so research requirements of accelerated life test of pneumatic cylinder have been increased more than ever. In this research, we shall evaluate availability of acceleration model by statistical analysis of acceleration model's predicted value and life data which acquired in a real operation condition after finish accelerated life test of pneumatic cylinder. Also to predict the life of pneumatic cylinder in the operation condition we shall develop new acceleration model equations.

• 한국발생생물학회지:발생과생식
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• 제15권2호
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• pp.173-178
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• 2011

The amphetamine derivative 3,4-methylenedioxymethamphetamine (MDMA) is a potent monoaminergic neurotoxin with the potential to cause serotonergic neurotoxicity, but has become a popular recreational drug. Little has been known about the cellular effects induced by MDMA. This report shows that MDMA inhibits neuronal cell growth and differentiation. MDMA suppressed neuronal cell growth. The results of quantitative real-time PCR analysis showed that Egr-1 expression is elevated in mouse embryo and neuroblastoma cells after MDMA treatment. Transiently transfected Egr-1 interfered with the neuronal differentiation of neuroblastoma cells such as SH-SY5Y and PC12 cells. These findings provide evidence that the abuse of MDMA during pregnancy may impair neuronal development via an induction of Egr-1 over-expression.

• Communications for Statistical Applications and Methods
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• 제23권4호
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• pp.269-285
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• 2016

In this paper, a simple step-stress accelerated life test (ALT) under progressive type-II censoring is considered. Progressive type-II censoring and accelerated life testing are provided to decrease the lifetime of testing and lower test expenses. The cumulative exposure model is assumed when the lifetime of test units follows an extension of the exponential distribution. Maximum likelihood estimates (MLEs) and Bayes estimates (BEs) of the model parameters are also obtained. In addition, a real dataset is analyzed to illustrate the proposed procedures. Approximate, bootstrap and credible confidence intervals (CIs) of the estimators are then derived. Finally, the accuracy of the MLEs and BEs for the model parameters is investigated through simulation studies.

• 콘크리트학회논문집
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• 제12권5호
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• pp.69-80
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• 2000

This paper presents the prediction of remaining service life of the concrete due to steel corrosion caused by the following three cases; carbonation, using sea sand and using deicing salts. The assessment of initiation period was generalized considering the existing perdiction models in the literature, corrosion experiment and field assessment. To evaluate the prediction equation of rust growth, the corrosion accelerating experiments was performed. The polarization resistance was measured by potentiostat and the conversion coefficient of polarzation resistance to corrosion rate was determined by the measurement of real mass loss. Chloride content, carbonation, cover depth, relative humidity, water-cement ratio(W/C), and the use of deicing salts were taken into account and the resulting prediction equation of rust growth was proposed on the basis of these properties. The proposed equation is to predict the rust growth during any specified period of time and be effective in particular for predicting service life of concrete in the case of using sea sand.

• 한국안전학회지
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• 제19권3호
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• pp.118-123
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• 2004

The more the lift environment eastern idea, culture, factory automation system and information technology complicates, the more the various human error brings about. It brings about all kind of accidents and occupational diseases. Also the death and sickness or injury by psychological stress among the human error has increased every year. Therefore this paper describes the Korean lift change unit model through statistical testing with the proposed life change unit factors on the married workers living the middle area. The proposed model can be simply used in order to minimize the industrial accident and human error in real fields. Finally, the result will be helpful for the better safety management.