• 제목/요약/키워드: sleeping time

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화목 연료 난방설비의 화재 위험 감소 방안에 관한 이론적 연구 (Study on the effective response method to reduce fire risk of wood fuel heating system)

  • 박경진;이봉우;이근출;남기훈
    • 한국산업융합학회 논문집
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    • 제22권2호
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    • pp.163-171
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    • 2019
  • Recently, rural housing in urban areas has been increasing due to the improvement of income level. With the increase of the construction of the power house, the installation of the heating system using the harmonious fuel for the purpose of heating and the beauty of the room is increasing rapidly. In addition to the increasing use of firewood heating equipment, the incidence of fire is also increasing. Analysis of the National Fire Data System of the Fire Department The result of the analysis of the National Fire Data System Many parts of the fire are incinerated by the accumulation of tar due to the incompleteness of periodic cleaning inside the cylinder. The distance between the fire extinguisher and the combustible materials such as ceiling, Resulting in fire. In addition, it was found that much of the fire of the firewood heating system in the time zone occurs during the sleeping and resting time and there is not enough time for the residents to cope. This, in turn, causes serious harm to the lives and property of the users of the pyrotechnic heating system. Therefore, in this study, domestic and foreign standards and laws related to fuel oil heating facilities were analyzed and 12 cases of fire accidents were analyzed. Through the revision of the fire prevention and firefighting facilities installation and maintenance law, the installation standards of the alarm and fire extinguishing facilities were presented.

분만 후 산모가 자각하는 피로 (Subjective Symptoms of Fatigue in Postpartum Women)

  • 김신정;정금희;김태희
    • 여성건강간호학회지
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    • 제6권3호
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    • pp.427-438
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    • 2000
  • The purpose of this study was to collect basic data the health care of postpartum women. Three hundred seventy five women who were 3 days postpartum were enrolled at two university hospitals. Data were collected from April 1999 to November, 1999 using a questionnaire titled 'Symptom Table on Fatigue Perception' designed by the Fatigue Research Committee of Japan. The collected data were scored by the use of mean and standard deviation according to the subjective symptoms of fatigue and each item was analyzed independent variable by the t-test and the ANOVA test. The results were as follows: 1. The average fatigue score of subjects was 1.61. Physical fatigue had the highest value with a mean of 1.82, followed by neuro-sensory fatigue with a mean score of 1.54, psychological fatigue was rated lowest with a mean of 1.45. 2. With the respect to the general characteristics of subjects, there were statistically significant differences in difficulty of labor (t=2.335. p=.020), sleeping time (t=2.340. p=.020) and desirability of pregnancy (t=2.409. p=.018).

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재가노인 유헬스 생활지원기기의 실용화를 위한 여성노인의 선호 (A Study on the Preference of Old Women for the Higher Usability of u-Health Life Support Appliances)

  • 김선중;박경옥
    • 한국주거학회논문집
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    • 제20권1호
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    • pp.101-112
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    • 2009
  • The purpose of this study is to find out the preference and the needs of old womens on the life support appliances i.e. medication dispenser, video phone, activity monitor and sleep monitor. The appliances may be improved reflecting the result of the questionnaire asking about the preferred functions and designs. The respondents were 141 female seniors of 65 years and older, living in Ulsan city or Cheongju city, Korea. Following is the list of results. (1) The medication dispenser, responded as highly preferred, met some worries over the troubles by power stoppage especially while one is out, letting her forget the medication time. (2) The video phone was worried over the cases of hearing failure by small sound, and watching failure by weakening sight. (3) The activity monitor, like the medication dispenser, was worried about the troubles while one is out or out of the monitoring scope, its expense, and the privacy, (4) The sleep monitor met the worries over the inadequacy for the sleeping mat on the floor and the emission of electromagnetic waves. (5) The preferred designs were (1) white or red standing medication dispenser, (2) wall-mounted video phone working by voice, (3) metal activity monitor sensor with white or yellow bracelet.

Effect of Saenggitang on Learning and Memory Ability in Mice

  • Han Yun-Jeong;Chang Gyu-Tae;Kim Jang-Hyun
    • 대한한의학회지
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    • 제25권4호
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    • pp.51-60
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    • 2004
  • Objective : The effect Saenggitang (GT), which has been used for amnesia, in Oriental Medicine, on memory and learning ability, was investigated. Methods : Hot water extracts (HWE) of SGT were used for the studies. In passive avoidance performances (step through test), active avoidance performances (lever press test), Motor activity, pentobarbital-induced sleep, 20 and 50 mg/100g of SGT-HWE ameliorated the memory retrieval deficit induced by 40% ethanol. Results : The SGT-HWE did not affect the ambulatory activity of normal mice in normal condition. 20 and 50 mg/100g of SGT-HWE enhanced contextual fear memory, but not cued fear memory in a fear conditioning task, which requires the activation of the NMDA (N-methyl-D-aspartase) receptor. SGT-HWE did not affect the motor activity measured by the titling type ambulometer test performed immediately and 24 hr after the administration. SGT-HWE prolonged the sleeping time induced by 50 mg/kg pentobarbital in mice and decreased SMA (spontaneous motor activity) in active avoidance performances (lever press test). Conclusion : These results indicate that the SGT-HWE have an improving effect on the memory retrieval disability induced by ethanol and may act as a stimulating factor for activating the NMDA receptor. and the SGT-HWE has a tranquilizing and anti-anxiety action.

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Effects of Varying Creep Feed Duration on Pre-weaning and Post-weaning Performance and Behavior of Piglet and Sow

  • Yan, L.;Jang, H.D.;Kim, I.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제24권11호
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    • pp.1601-1606
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    • 2011
  • 32 sows (Landrace${\times}$Yorkshire) and their litters were used to evaluate the effects of varying creep feed duration on pre-weaning, post-weaning performance of piglets and sows. Sows were randomly assigned with 1, 2 or 3+ parities into 1 of 4 treatments. Creep feeding was initiated at day 5, 10 and 15 from birth for treatment 1 (TRT1), 2 (TRT2) and (TRT3), respectively, with a control group provided no creep feed. In this study, TRT1 and TRT2 diets had reduced (p<0.05) the post-weaning diarrhea scores in piglets and the weaning-to-estrus interval and cortisol concentration in sows at weaning time compared with other treatments. Dietary TRT1 led to a higher (p<0.05) epinephrine and norepinephrine concentrations than other treatments. No differences (p>0.05) were noted in suckling, sleeping, fighting frequency and mortality in piglet and eating, standing times, backfat and body weight loss in sows. In conclusion, creep feed initiated from day 5 and 10 reduce diarrhea scores in piglets and benefit the estrus interval in sows compared with those initiated from day 15 and no-creep feeding diets, indicating creep feeding could improve the pigs and sows performance, especially those initiated from day 5 and 10.

한 보건기관에 내원한 기초생활수급노인과 비 수급노인의 우울 및 인지기능 상태 비교 (Comparison of Depression and Cognitive Function between Elderly Welfare Recipients and Non-Elderly Welfare Recipients in a Public Health Center)

  • 박정아;조영채
    • 농촌의학ㆍ지역보건
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    • 제32권1호
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    • pp.1-12
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    • 2007
  • Objectives: This study was performed to provide the fundamental data available in the field of the elderly health of the low-income bracket by researching and comparing related factors for the assessment of the degree of depression and cognitive function between elderly welfare recipients and non-elderly welfare recipients. Methods: The study subjects, 402 elderly person over 65-year-old in Daejeon were interviewed, during the two-month from May to June 2006, about their general characteristics, depression and cognitive function. Results: elderly welfare recipients was higher than non-elderly welfare recipients in degree of depression on the other hand, in cognitive function is lower. Also, the depression and cognitive function were related with not only socio-demographic characteristics like the age, the degree of education, the presence of spouse or not and the health status but also health behavior characteristics like the sleeping time, the drinking and the exercise. Conclusions: The project of health promotion and programs that can improve the related factors to the depression and cognitive function for elderly welfare recipients should be developed and practiced.

독활지황탕(獨活地黃湯)의 위장관(胃腸管) 및 중추신경(中樞神經)에 미치는 효능(效能)에 관(關)한 실험적(實驗的) 연구(硏究) (An experimental study on the effects of Dokwhaljiwhang-tang affecting gastro-intestinal track and central nervous system in rats and mice)

  • 진현철
    • 사상체질의학회지
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    • 제9권2호
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    • pp.187-201
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    • 1997
  • An experimental study was done to examine the effects of Dokwhaljiwhang-tang on gastro-intestinal track and central nervous system and were undertaken by being carried out with rat. The following results have been obtained ; 1. Dokwhaljiwhang-tang showed to have an inhibitory effect on the smooth muscle contraction of the isolated ileum by acetylcholene chloride and barium chloride. 2. Dokwhaljiwhang-tang showed to have an inhibitory effect on the contraction of the gastric fundus-strip by acetylcholine chloride and barium chloride. 3. The preventive effect was recognized on the pylorus-ligated ulcer, by administration of Dokwhaljiwhang-tang. 4. The preventive effect was not recognized on the indomethacine -induced ulcer, by administration of Dokwhaljiwhang-tang. 5. The inhibitory effects on the secretion gastric juice, free acidity were recognized, by administration of Dokwhaljiwhang-tang 6. The transport ability in the small intestine was increased, by administration of Dokwhaljiwhang-tang. 7. The transport ability in the large intestine was increased, by administration of Dokwhaljiwhang-tang. 8. The analgesic effect was recognized, by administration of Dokwhaljiwhang-tang. 9. The effect of sleeping time was not recognized, by administration of Dokwhaljiwhang-tang. according to the results, it is considered that Dokwhaljiwhang-tang has effects of gastric ulcer, chronic gastritis,hyper-acidity, gastroptosis such as abdominal discomfort, gastric acid, indigestion and anorexia.

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Traffic-Aware Relay Sleep Control for Joint Macro-Relay Network Energy Efficiency

  • Deng, Na;Zhao, Ming;Zhu, Jinkang;Zhou, Wuyang
    • Journal of Communications and Networks
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    • 제17권1호
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    • pp.47-57
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    • 2015
  • With the ever growing demand of data applications, the joint macro-relay networks are emerging as a promising heterogeneous deployment to provide coverage extension and throughput enhancement. However, the current cellular networks are usually designed to be performance-oriented without enough considerations on the traffic variation, causing substantial energy waste. In this paper, we consider a joint macro-relay network with densely deployed relay stations (RSs), where the traffic load varies in both time and spatial domains. An energy-efficient scheme is proposed to dynamically adjust the RS working modes (active or sleeping) according to the traffic variations, which is called traffic-aware relay sleep control (TRSC). To evaluate the performance of TRSC,we establish an analytical model using stochastic geometry theory and derive explicit expressions of coverage probability, mean achievable rate and network energy efficiency (NEE). Simulation results demonstrate that the derived analytic results are reasonable and the proposed TRSC can significantly improve the NEE when the network traffic varies dynamically.

여름철 수면시 온열쾌적감 평가 -제 2보 : 평균 피부온도 및 생리신호에 관하여 - (Evaluation of Thermal Comfort during Sleeping in Summer - Part II : About mean Skin Temperatures and Physiological Signals -)

  • 김동규;금종수;박종일
    • 설비공학논문집
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    • 제18권1호
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    • pp.1-6
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    • 2006
  • This study was performed to evaluate sleep efficiencies and conditions for comfortable sleep based on the analysis of EEGs and MST under four thermals conditions. Five female subjects who have similar life cycle and sleep patterns were participated for the sleep experiment. Their age was from 20 to 22 years old. They were healthy, and had regular sleep with consistent bed and wakeup time. It was checked whether they had a good sleep before the night of experiment. Experiments were performed in an environmental chamber of $4.1\times4.9\times2.7m$ size. EEGs were obtained from C3-A2 and C4-Al electrode sites. Sleep stages were classified, then TST, SWS latency and SWS/TST were calculated for the evaluation for sleep efficiencies on thermal conditions. As results, it was concluded that indoor thermal environments of $24\~26^{\circ}C$ was the best for comfortable and deep sleep.

구안와사(口眼喎斜) 환자 33례의 피로도에 관한 임상적 연구 (The Clinical Study of Fatigue Perceived by 33 Patients with Bell's palsy)

  • 김민지;엄재용;고태현;홍승욱
    • 한방안이비인후피부과학회지
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    • 제18권2호
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    • pp.62-69
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    • 2005
  • Objective: This study is to explore the various aspects of the fatigue perceived by patients with Bell's palsy Method: 33 patients who were diagnosed as Bell's palsy were sequentially interviewed and examined Results: The results were as follows 1. The mean average fatigue score of subjects was $1.79{\pm}0.41$ : the physical fatigue revealed the highest value with a mean of $1.84{\pm}0.50$, followed by neurosensory fatigue with a mean of $1.77{\pm}0.42$, psychological fatigue with a mean score of $1.76{\pm}0.54$. 2. With the respect to the general characteristics of subjects, there were statistically significant differences in the patients' fatigue perception by age and the amount of sleeping time. Conclusions: We needed the further study about the relation between fatigue and Bell's palsy

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