• Title/Summary/Keyword: Withdrawal period

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부산시 동래 온천지역의 양수량, 온천수위, 강수량의 관련성 연구

  • 차용훈;함세영;정재열;장성;손건태
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2004.04a
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    • pp.455-458
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    • 2004
  • This study uses time series analyses to evaluate fluctuation of water levels in a geothermal water well due to pumping, in relation to rainfall at Dongrae hot-spring site on the southeastern coast of tile Korean peninsula. The volume of water pumped from the public study wells ranges from 542 to 993 m$^3$/month, and the minimum water level ranged from 35 to 144.7 m during the measured period. Autocorrelation analysis was conducted for the withdrawal rate at the public wells, water levels and rainfall. The autocorrelation of the withdrawal rate shows distinct periodicity with 3 months of lag time, the autocorrelation of rainfall shows weak linearity and short memory with 1 months of lag time, and the autocorrelation of water levels shows weak linearity and short memory with 2 months of lag time. The cross-correlation between the pumping volume and the minimum water level shows a maximum value 1 at a delayed time of 34 months. The cross-correlation between rainfall and the minimum water level shows a maximum value of 0.39 at a delayed time of 32 months.

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A Review: Influences of Pre-slaughter Stress on Poultry Meat Quality

  • Ali, Md. Shawkat;Kang, Geun-Ho;Joo, Seon Tea
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.6
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    • pp.912-916
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    • 2008
  • Pre-slaughter conditions affect poultry meat quality. Therefore, stresses before slaughter like heat stress, struggle and shackling on the shackle line, crating and transport and feed withdrawal are very important for the poultry industry in respect of quality as well as welfare of the birds. However, exposure to heat in oxidative stress can in turn lead to cytotoxicity in meat type birds. Chickens exposed to heat stress before slaughter showed the lowest ultimate pH and birds shackled for a longer time the highest. The abdominal fat content was higher in heat stressed birds. Struggling on the shackle line hastened the initial rate of the pH drop and increased the redness of breast meat. Again, with increasing struggling activity, lactate concentration in breast muscle of chicken increased. Paler meat was found in birds that were transported for a longer time than in those after a small journey or not transported. The pre-slaughter and eviscerated weights were decreased as the length of feed withdrawal period increased.

The Effects of half-eyes patching on Hemispatial in Patients With Stroke (좌측편측무시 환자에게 양쪽 눈을 반쪽씩 가린 안경착용 중재 시 효과 - 단일사례연구)

  • Yoo, Jae-yeon
    • Therapeutic Science for Rehabilitation
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    • v.3 no.2
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    • pp.83-89
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    • 2014
  • Objective : This study aims to investigate the effect of half- eyes patching for the reduction of unilateral neglect of left-side hemiplegia. Methods : This study used the ABA design. He was required to wear the half- eyes patching during all the period of ADL because unilateral neglect causes many problems in the majority of ADL. The assessments for the unilateral neglect had been performed by the Line bisection and the Albert test once a session (day). Results : Regarding the Means of the errors to the Line bisection and the Albert test, the Means of the errors was not decreased during the period of the intervention (B) and was not decreased after the withdrawal (A'). Conclusions : Half-eyes patching was non-effective to r e lease the unilateral neglect. Further study is necessary to increase the sample size and the duration of experiments.

A Feasibility Study for Renewable Energy from Sewage Sludge Biogas (하수슬러지 Biogas의 신재생에너지화 타당성 연구)

  • Kang, Ho;Lee, Hye Mi;Cho, Sang Sun;Park, Sun Uk;Jeong, Ji Hyun
    • Journal of Korean Society on Water Environment
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    • v.26 no.5
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    • pp.754-760
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    • 2010
  • This study was carried out not only to evaluate optimal operating condition to increase biogas production, but also to estimate feasibility of renewable energy from anaerobic digester of sewage sludge. Semi- continuous Fed and Mixed Reactors (SCFMRs) were operated in various condition to quantify the reactor variables. The result of SCFMR operation showed that the biogas productivity and total volatile solids (TVS) removal of total solids (TS) 4% reactor at hydraulic retention time (HRT) 20 days with Organic Loading Rate (OLR) of $1.45kg/m^3-d$ were $0.39m^3/m^3-d$ and 26.7%, respectively which was two times higher than that of TS 2.5% reactor. Consequently the daily biogas production of $20,000m^3$ would be possible from the total volume of $52,000m^3$ of anaerobic digesters of the municipal wastewater treatment plant in D city. In feasibility study for the Biogas utilization, combined heat and power system (CHP) and CNG gasification were examined. In case of CHP, the withdrawal period of capital cost for gas-engine (GE) and micro gas-turbine (MGT) were 7.7 years and 9.1 years respectively. biogas utilization as Clean Natural Gas (CNG) shows lower capital cost and higher profit than that of CHP system. CNG gasificaion after biogas purification is likely the best alternative for Biogas utilization which have more economic potential than CHP system. The withdrawal period of capital cost appeared to be 2.3 years.

Labor Force Withdrawal And Entry (Surrounding First Birth of Married Women) (출산을 전후한 시기 여성의 노동시장 이탈과 진입 (미국 기혼여성의 경우))

  • 장지연
    • Korea journal of population studies
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    • v.20 no.2
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    • pp.5-42
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    • 1997
  • This study contributes to understanding women's labor market behavior by focusing on a particular set of labor force transitions - labor force withdrawal and entry during the period surrounding the first birth of a child. In particular, this study provides a dynamic analyses, using longitudinal data and event history analysis, to conceptualize labor force behaviors in a straightforward way. The main research question addresses which factors increase or decrease the hazard rates of leaving and entering the labor market. This study used piecewise Gompertz model, following the guide of the non-parametric analysis on the hazard rates, which allowed relatively detailed description on the distribution of timing of leave and entry to the labor market as parameters of interest. The results show that preferences and structural variables, as well as economic considerations, are very important factors to explain the labor market behavior of women in the period surrounding childbirth.

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The Long-Term Effects of Familial Difficulties Experienced in Childhood: Predictors of Internalizing Behavior Problems during the Early Adolescent Period and Late Life Periods

  • Sohn Byoungduk
    • International Journal of Human Ecology
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    • v.6 no.1
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    • pp.103-115
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    • 2005
  • This study utilized data (a sample of 18,553 people born in 1958 in England, Scotland, and Wales) from the National Child Development Study of 1968 and 1991 to explore the influence of familial difficulties on the internalizing behavioral patterns during the early adolescent period and late life outcomes periods. In this paper, internalizing behavioral problems include 'depression', 'anxiety', 'hostility to adults', 'hostility to children', and 'withdrawal'. Late outcomes were analyzed in two different variables and one marital management domain: 'unemployment', 'seen doctors about emotional problems', 'divorce or separation; never lived as a couple; arguments end in violent behavior' The results indicate that young adolescents who had experienced familial difficulties also have internalizing behavioral problems giving them emotional and behavioral instability. The findings also show that familial difficulties during childhood positively contribute to late life outcomes such as unemployment, emotional problems, and marital management. This study suggests that in order to effectively respond to the needs of children and adolescents who have experienced various familial difficulties, counselors and educators must guide parents.

Clinical Feasibility of Mental Practice for Gait Ability Improvement of Parkinson Disease Patients: ABA Single Subject Design

  • Song, Hyun Seung;Kim, Jin Young
    • The Journal of Korean Physical Therapy
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    • v.26 no.6
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    • pp.398-402
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    • 2014
  • Purpose: This study was carried out in order to verify actual applicability of mental practice in the clinical field by applying it to Parkinson disease patients. Methods: : The number of subjects was three and they were aged between 65 and 69. One year or longer period has passed since they were diagnosed with Parkinson disease. The baseline A consisted of three sessions. After the baseline period, the researcher applied mental practice to the subjects once per day, for 20 minutes per each time, for 10 sessions. The no-intervention withdrawal phase was composed of three sessions. Outcome measures 10 meter walking test(10MWT), timed up and go (TUG) test, 8-figure walk test (8FWT). Results: All results indicated that 10 MWT, TUG, F8WT was improved when compared mental practice(B) to pre base line(A). base line(A) after mental practice intervention(B) was also sustained. Conclusion: As a result of the mental practice, we can know that it helps straight gait, dynamic balance, curved gait to improve.

Effects of Pain Stimulation on EEG in Dogs Anesthetized withMedetomidine and Tiletamine/Zolazepam (Medetomidine과 Tiletamine/Zolazepam을 병용마취한 개에서 통증자극이 뇌파 변화에 미치는 영향)

  • Choi, Woo-Shik;Jang, Hwan-Soo;Kwon, Young-Sam;Jang, Kwang-Ho
    • Journal of Veterinary Clinics
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    • v.27 no.2
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    • pp.136-141
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    • 2010
  • The aim of this study is to investigate whether medetomidine (MED) and tiletamine/zolazepam (ZT) combination in dogs provide the sufficient analgesia during the period of the stage of surgical anesthesia determined by the response to the noxious stimuli, which were evaluated by the change of electroencephalogram (EEG) and hemodynamic values. Seven clinically healthy, adult beagle dogs were used. They were used repeatedly at interval of a week, according to a randomized design. This study had 2 experimental groups. In Group 1, dogs received $30\;{\mu}g/kg$ of medetomidine and 10 mg/kg of tiletamine/zolazepam. Both drugs were administered intramuscularly. In Group 2, dogs were medicated with the same method as in Group 1, except the pedal withdrawal reflex test was done. In Group 2, interdigital regions were grasped with a mosquito forceps for 30 seconds, every 5 min from 10 min to 45 min after ZT injection. During all recording stages, the power for each band, mean arterial pressure and heart rates were calculated. On EEG, no significant changes were observed between groups. Although mean arterial pressure and heart rate were increased 10 min after ZT injection, no significant differences were observed between groups. In conclusion, the MED and ZT anesthesia in dogs are seemed to provide a satisfactory analgesic effect during the period of surgical anesthesia based on EEG with pedal withdrawal reflex test.

House-plant placement for indoor air purification and health benefits on asthmatics

  • Kim, Ho-Hyun;Yang, Ji-Yeon;Lee, Jae-Young;Park, Jung-Won;Kim, Kwang-Jin;Lim, Byung-Seo;Lee, Geon-Woo;Lee, Si-Eun;Shin, Dong-Chun;Lim, Young-Wook
    • Environmental Analysis Health and Toxicology
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    • v.29
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    • pp.14.1-14.8
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    • 2014
  • Objectives Some plants were placed in indoor locations frequented by asthmatics in order to evaluate the quality of indoor air and examine the health benefits to asthmatics. Methods The present study classified the participants into two groups: households of continuation and households of withdrawal by a quasi-experimental design. The households of continuation spent the two observation terms with indoor plants, whereas the households of withdrawal passed the former observation terms with indoor plants and went through the latter observation term without any indoor plants. Results The household of continuation showed a continual decrease in the indoor concentrations of volatile organic compounds (VOCs) during the entire observation period, but the household of withdrawal performed an increase in the indoor concentrations of VOCs, except formaldehyde and toluene during the latter observation term after the decrease during the former observation term. Peak expiratory flow rate (PEFR) increased in the households of continuation with the value of 13.9 L/min in the morning and 20.6 L/min in the evening, but decreased in the households of withdrawal with the value of -24.7 L/min in the morning and -30.2 L/min in the evening in the first experimental season. All of the households exhibited a decrease in the value of PEFR in the second experimental season. Conclusions Limitations to the generalizability of findings regarding the presence of plants indoors can be seen as a more general expression of such a benefit of human-environment relations.

A Study on the Loss Incurred by Withdrawal of Ship under Time Charter -Focused on the MT Kos Case- (정기용선계약상 본선회수에 따라 발생한 손해에 관한 연구 -MT Kos호 사건을 중심으로-)

  • Han, Nakhyun
    • Journal of Korea Port Economic Association
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    • v.29 no.4
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    • pp.265-288
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    • 2013
  • The purpose of the study aims to analyse the loss incurred by withdrawal of ship under time charter based on the English Law with the MT Kos case. In this case, it is agreed that if the charterers had begun to make arrangements for the discharge of their cargo as soon as they received the owner's notice of withdrawal, the vessel would have been detained at Angra doe Reis for one day. As it was, she was detained there for 2.64 days. The issue is whether the owners are entitled to be paid for the service of the vessel during that 2.62 days, and for bunkers consumed in the same period. Their claim is put forward on three bases: (1) under clause 13 of the charterparty ; (2) under an express or implied new contract made after the vessel was withdrawn, to pay for the time and bunkers; and (3) under the law of bailment. The judge held they were entitled to succeed on basis (3), but rejected every other basis which they put forward. The Court of Appeal rejected the claim on all three bases, except that they allowed the owners to recover the value of bunkers consumed in actually discharging the cargo.