• 대한지리학회지
• /
• 제32권2호
• /
• pp.217-228
• /
• 1997

본 논문은 여성의 취업 선호 현상으로 인한 사회 참여가 높아짐으로서 나타나는 여성의 역할과 일상 행동의 변화를 검토하였다. 이를 위해, 광주 광역시에 거주하는 주부 132명의 평일, 토요일, 일요일에 나타나는 일상 행동 궤적을 조사하고, 이를 개인 속성과 관련시켜 고찰하였다. 일상 행동은 하루의 노동 행동과 여가 행동 및 수면을 중심으로 7개의 범주로 세분하였으며, 개인 속성은 연령, 취업정도, 교육정도, 가족수, 주거형, 거주지 등을 조사하였다. 그 결과. 첫째 전반적으로 개인 속성과 일상 행동의 관계는 취업 정도에 의해 평일과 토요일의 일상 행동에 대한 판별이 가능하였다. 둘째, 1주일의 일상 행동은 평일, 토요일, 일요일로 분류할 때, 토요일에 공간적 이동이 가장 빈번하게 나타났다. 셋째, 개인 속성과 통행수의 관계에서는 토요일 전업 취업 주부일수록 4회 이상의 다목적 통행을 나타냈다. 넷째, 주기수와 통행수의 관계는 주기가 빈번해질수록 다목적 통행을 나타내나, 1회 주기가 대부분이며 평일에 두드러졌다. 다섯째, 개인 속성과 행동 패턴의 관계는 평일과 주말에 따라 다르나, 전반적으로 WH, LH, WLH LHLH 형을 나타냈다.

• PNF and Movement
• /
• 제20권1호
• /
• pp.91-101
• /
• 2022

Purpose: The purpose of this study was to examine the effect of cycle ergometer exercise inducing movement of the affected side on knee joint function after total knee arthroplasty (TKA). Methods: The primary experiment was conducted on 19 members of the cycle ergometer exercise group to measure the muscle activity of the rectus femoris, hamstring, tibialis anterior, and gastrocnemius muscles during cycle ergometer exercise that induced the affected side's movement. In the second experiment, after receiving physiotherapeutic intervention for 30 min, the general bicycle exercise group and cycle ergometer exercise group performed the corresponding exercise for 15 min, 5 times per week, for 2 weeks. The ROM, muscle strength, pain, and balance were then measured and compared between the two groups. Results: In the results of the primary experiment, cycle ergometer exercise inducing movement of the affected side showed a significantly larger increase in the activity of leg muscles (rectusfemoris, hamstring, tibialis anterior, gastrocnemius) on the affected side than the general bicycle exercise (p <0.05). In the second experiment, the cycle ergometer exercise group showed a significantly larger increase in range of movement of affected side knee flexion and muscle strength of affected side knee flexion, knee extension, and plantarflexion than the general bicycle exercise (p <0.05). No significant between-group difference was observed in pain and balance before or after the intervention (p >0.05). Conclusion: Cycle ergometer exercise inducing movement of the affected side increases use of the muscles around the affected side knee joint after TKA more than general bicycle exercise and produces better effects for enhancing muscle strength. The application of cycle ergometer exercise inducing movement of the affected side is expected to reduce the patients' unbalanced use during the early postoperative period and help them to quickly return to normal daily life through rapid muscle strength recovery.

• 환경위생공학
• /
• 제12권1호
• /
• pp.59-68
• /
• 1997

이 연구에서는 SBR에 Rotating disks를 부착하여 회전하면서 두 원판 사이에서 전단력이 발생하는 BS-SBR을 이용하여 용해성 유기물질 제거율과 슬러지 분리에 대해 비교 검토하였다. BS-SBR 공정에서는 부유성 활성슬러지와 생물학적 고정막에 대해 동시처리 되어 높은 처리효율을 보였다. SCOD 제거율은 SBR보다 높은 97%를 보였다. 처리수의 평균 SS 농도는 $4.8mg/{\ell}$ 정도로 나타났고, 1-cycle/d 및 3-cycle/d 모두 $10mg/{\ell}$ 이하를 유지하여 매우 효과적임을 알 수 있었다. 슬러지 침전 특성은 SBR과는 상이한 매우 좋은 결과를 보였다. 운전 중 슬러지는 진한 갈색으로 플록이 잘 형성되었고, 그 크기는 SBR에서 보다 크다는 것이 눈으로 확인할 수 있을 정도였다.

• 여성건강간호학회지
• /
• 제12권1호
• /
• pp.53-60
• /
• 2006

Purpose: This study aimed to explore changes in symptom distress and functional status in gynecologic cancer patients during the entire treatment cycles of chemotherapy. Methods: A prospective and longitudinal study with repeated measures was designed. Symptom Distress Scale and Karnofsky Performance Status Index were included in a daily log developed for self-administration. A total of 39 patients with a mean age of 48.4 years participated. Results: The levels of symptom distress and functional status changed significantly over the six cycles. Symptom distress kept increasing until its peak at the fourth cycle, while the functional status scored lowest at the first cycle, then it improved as the cycle repeated. In each cycle, symptom distress was marked higher during the first 6 days accompanying poor functional status. However, both changes did not recover completely until the end of each cycle. Conclusion: Nursing assessment and intervention need to be provided based on these changing patterns to help cancer patients cope and adjust successfully during the long treatment period. Further studies are needed to examine the impact of the major symptoms on psychological responses, quality of life, and outcomes of the cancer treatments.

• 산업공학
• /
• 제10권1호
• /
• pp.15-22
• /
• 1997

In semiconductor manufacturing, the probe process between fabrication and assembly process is constrained mostly by the equipment capacity because most products pass through the similar procedures. The probe process is usually performed in a batch mode with relatively short cycle times. The capability of the probe process can be determined by the optimal combination of the equipments and the products. A probe line usually has several types of equipment with different capacity. In this study, the probe line is modeled in terms of capacity to give the efficient planning and control procedure. For the practical usage, the hierarchical capacity planning procedure is used. First, a monthly capacity plan is made to meet the monthly production plan of each product. Secondly, the daily capacity planning is performed by considering the monthly capacity plan and the daily fabrication output. Simple heuristic algorithms for daily capacity planning are developed and some experimental results are shown.

• 한국물환경학회지
• /
• 제24권3호
• /
• pp.317-327
• /
• 2008

This study developed the methodology to calculate the total daily maximum load (TMDL) using the instreamflow requirement because the previous TMDLs were too simple to easily achieve. Instreamflow requirement which was the average low flow ($Q_{275}$) in the previous planning cannot consider the seasonal variation of streamflow. Therefore, this study used the instreamflow requirement which is a maximum value among hydrologic drought flow ($Q_{355}$), and environmental flows for ecology and scenery. The environmental flows for ecology were calculated using Physical HABitat SIMulation system (PHABSIM) which can estimate the necessary flow for fish survival by life cycle. Using the proposed method, all monthly TMDLs of streams in the Anyangcheon were calculated for the application.

• 운동영양학회지
• /
• 제13권1호
• /
• pp.29-35
• /
• 2009

The purpose of this study was to investigate the effects of oral supplementation of coenzyme Q10 (CoQ10) for 4 weeks on the plasma free oxygen radical and total antioxidant capacity at resting and after one bout exercise in healthy old men. Thirty volunteers with an average (+/-SD) age of 62.59+/-5.3 years participated in this study and were divided with three groups; CoQ10 (200 mg daily) group, vitamin C & E (800mg, 400 IU daily) group, and placebo group. A cycle exercise (60% HRR) test was performed at the end of study. Blood samples were taken for the analyses at rest and pre-, post-, 30min after cycle exercise, before and after the 4 weeks of supplementation. After supplementation, there were no significant differences in the plasma free oxygen radical levels and total antioxidant capacity at resting. Plasma free oxygen radical level and total antioxidant capacity in three groups were significantly elevated after exercise, however, it did not vary significantly between groups. CoQ10 supplementation showed significant difference in total antioxidant capacity during recovery phase compared with placebo group. Our results demonstrated that supplementation of CoQ10 in healthy old men improve blood total antioxidant capacity after one bout exercise, despite no alteration of plasma free oxygen radical levels.

• 한국건설관리학회논문집
• /
• 제6권3호
• /
• pp.100-110
• /
• 2005

건설 프로젝트가 더욱 복잡해지고 대형화함에 따라 정보의 양이 기하급수적으로 증가하고 있는데, 이로 인하여 프로젝트 생애주기간 실적정보를 관리하기 위한 정보 시스템이 필요하다. 특히, 작업일보 시스템은 가장 세부적인 수준에서 다양한 실적정보를 추적 관리할 수 있다는 점에서 매우 중요하다. 그러나 작업 일보 시스템의 프로세스가 시간이 많이 걸리며, 중복업무가 많고, 수집되는 정보표현의 모호성 등으로 인하여 많은 한계를 가지고 있었다. 따라서 본 연구에서는 실적정보를 수집하고 작업일보를 관리하는 프로세스를 향상시키는 것을 목적으로 To-Be 프로세스 모델을 구축하고 이를 검증하기 위해 작업일보 시스템을 개발하였다. 개발된 시스템은 interactive task generator와 작업일보관리 module로 구성되어있으며, 실제 건설프로젝트에서 성공적으로 시험되었다. 이 논문에서는 프로세스 분석, 정보모델 구축, 시스템 특징 등을 포함한 시스템 개발과정이 기술되어 있으며 연구결과와 개선효과도 논의되었다.

• Animal cells and systems
• /
• 제6권3호
• /
• pp.239-245
• /
• 2002

Plasma melatonin, thyroid-stimulating hormone (TSH) and body temperature were measured simultaneously and continuously before and after the sleep-wake cycle was shifted in 4 healthy males and changes in the circadian rhythm itself and in the phase relationship among these circadian rhythms were determined. Normal sleep-wake cycle (sleep hours: 2300-0700) was delayed by 10 h (sleep hours: 0900-1700) during the experiment. Even after this shift the typical melatonin rhythm was maintained: low during daytime and high during night. The melatonin rhythm was gradually delayed day by day. The TSH rhythm was also maintained fundamentally during 3 consecutive days of altered sleep-wake cycle. The phase was also delayed gradually but remarkably. The daily rhythm of body temperature was changed by the alteration of sleep-wake cycle. The body temperature began to decrease at the similar clock time as in the control but the decline during night awake period was less steep and the lowered body temperature persisted during sleep. The hormonal profiles during the days of shifted sleep/wake cycle suggest that plasma melatonin and TSH rhythms are basically regulated by an endogenous biological clock. The parallel phase shift of melatonin and TSH upon the change in sleep-wake cycle suggests that a common unitary pacemaker probably regulates these two rhythms. The reversal phase relationship between body temperature and melatonin suggests that melatonin may have a hypothermic effect on body temperature. The altered body temperature rhythm suggests that the awake status during night may inhibit the circadian decrease in body temperature and that sleep sustains the lowered body temperature. It is probable but uncertain that there ave causal relationships among sleep, melatonin, TSH, and body temperature.

• Animal Bioscience
• /
• 제34권3_spc호
• /
• pp.354-362
• /
• 2021

Broiler chickens grow rapidly, and their nutrient requirements change daily. However, broilers are fed three to five diet phases, meaning nutrients are under or oversupplied throughout production. Increasing diet phases improves production efficiency as there is less time in the production cycle that nutrients are in under or over-supply. Nevertheless, the process of administering four or more diets is costly and often impractical. New technologies are now available to blend feed to match the daily nutrient requirements of broilers. Thus, the aim of this review is to evaluate previous studies measuring the impact of increasing feed phases on nutrient utilisation and growth performance, and review recent studies taking this concept to the extreme; precision nutrition - feeding a new diet for each day of the production cycle. This review will also discuss how modern precision feeding technologies have been utilised and the potential that new technologies may bring to the poultry industry. The development of a precision nutrition regime which targets daily requirements by blending dietary components on farm is anticipated to improve the efficiency of production, reduce production cost and therefore improve sustainability of the industry. There is also potential for precision feeding technology along with precision nutrition strategies to deliver a plethora of other management and economic benefits. These include increased fluidity to cope with sudden environmental or market changes, and the ability to alter diets on a farm by farm level in a large, integrated operation. Thus, the future possibilities and practical implications for such technologies to generate a paradigm shift in feed formulation within the poultry industry to meet the rising demand for animal protein is also discussed.