• Title/Summary/Keyword: Daily Operation

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A Study on the Space Use Pattern of the Elderly with Dementia In Common Space of Nursing Home in Japan (일본 노인전문요양시설 치매노인의 공용공간 이용 특성에 관한 연구)

  • Yoon Young-Sun;Byun Hea-Ryung
    • Korean Institute of Interior Design Journal
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    • v.13 no.6
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    • pp.184-195
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    • 2004
  • The purpose of this study was to clarify the space use pattern and the daily living activities of the elderly with dementia in the common space (dining room, day corner) of nursing home in Japan. The subjects were six units of the 2 nursing homes in Tokyo. For this, researcher visited from September 5 to December 5 and collected data by observations of behavior of the elderly with dementia in common space and interviews with staff for the information about basic characteristics of the elderly with dementia and administration and operation of the facilities. The data were analyzed using the frequency and percentage with SPSS 11 program and recorded in the form of behavior map. The results revealed as follows: first, 6 types (self-concentration type, physical environment-interest type, passive others-interest type, staffs-interaction type, other elderly-interaction type, visitors-interaction type) of the daily living activities of the elderly with dementia in common space were founded. Second, the daily living activities of the elderly with dementia in common space tended to focus on self-concentration type and physical environment-interest type. Third, physical environmental characteristics of common space affected space usage pattern of the elderly with dementia. And it was perceived like as living oriented space, social interaction space, facility space, staff oriented space. Conclusively it was suggested to plan dining space as semi-private space, day comer as semi-public space.

A study on energy efficiency improvement of waste-water treatment system by freeze concentration method (동결농축법을 이용한 폐수처리시스템의 에너지 효율 향상에 관한 연구)

  • Kim, Jung-Sik;Lim, Seung-Taek;Oh, Cheol
    • Journal of Advanced Marine Engineering and Technology
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    • v.37 no.5
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    • pp.467-476
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    • 2013
  • Freeze concentration method has advantages of high thermodynamic efficiency, low energy consumption and purified water re-use. In this study, freeze concentration waste-water system which was designed as the small and medium sized capacity was analyzed about the rate of electric power consumption and the daily treatment capacity to suggest the direction of system development. At first, power consumption and operation time of the system with fresh water precooler or without it was calculated by computer modeling and analysis. Subsequently, the change of design treatment capacity was applied to the system with fresh water cooler. As a result, the rate of electric power consumption was higher as 0.6 Wh/kg but daily treatment capacity increased in quantity as 19 % in the system with fresh water precooler. As design treatment capacity increased, the rate of electric power consumption was lower and daily treatment capacity was larger in quantity.

Improving the Accuracy of a Heliocentric Potential (HCP) Prediction Model for the Aviation Radiation Dose

  • Hwang, Junga;Yoon, Kyoung-Won;Jo, Gyeongbok;Noh, Sung-Jun
    • Journal of Astronomy and Space Sciences
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    • v.33 no.4
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    • pp.279-285
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    • 2016
  • The space radiation dose over air routes including polar routes should be carefully considered, especially when space weather shows sudden disturbances such as coronal mass ejections (CMEs), flares, and accompanying solar energetic particle events. We recently established a heliocentric potential (HCP) prediction model for real-time operation of the CARI-6 and CARI-6M programs. Specifically, the HCP value is used as a critical input value in the CARI-6/6M programs, which estimate the aviation route dose based on the effective dose rate. The CARI-6/6M approach is the most widely used technique, and the programs can be obtained from the U.S. Federal Aviation Administration (FAA). However, HCP values are given at a one month delay on the FAA official webpage, which makes it difficult to obtain real-time information on the aviation route dose. In order to overcome this critical limitation regarding the time delay for space weather customers, we developed a HCP prediction model based on sunspot number variations (Hwang et al. 2015). In this paper, we focus on improvements to our HCP prediction model and update it with neutron monitoring data. We found that the most accurate method to derive the HCP value involves (1) real-time daily sunspot assessments, (2) predictions of the daily HCP by our prediction algorithm, and (3) calculations of the resultant daily effective dose rate. Additionally, we also derived the HCP prediction algorithm in this paper by using ground neutron counts. With the compensation stemming from the use of ground neutron count data, the newly developed HCP prediction model was improved.

Precision feeding and precision nutrition: a paradigm shift in broiler feed formulation?

  • Moss, Amy F.;Chrystal, Peter V.;Cadogan, David J.;Wilkinson, Stuart J.;Crowley, Tamsyn M.;Choct, Mingan
    • Animal Bioscience
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    • v.34 no.3_spc
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    • pp.354-362
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    • 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.

Forecasting the Daily Container Volumes Using Data Mining with CART Approach (Datamining 기법을 활용한 단기 항만 물동량 예측)

  • Ha, Jun-Su;Lim, Chae Hwan;Cho, Kwang-Hee;Ha, Hun-Koo
    • Journal of Korea Port Economic Association
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    • v.37 no.3
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    • pp.1-17
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    • 2021
  • Forecasting the daily volume of container is important in many aspects of port operation. In this article, we utilized a machine-learning algorithm based on decision tree to predict future container throughput of Busan port. Accurate volume forecasting improves operational efficiency and service levels by reducing costs and shipowner latency. We showed that our method is capable of accurately and reliably predicting container throughput in short-term(days). Forecasting accuracy was improved by more than 22% over time series methods(ARIMA). We also demonstrated that the current method is assumption-free and not prone to human bias. We expect that such method could be useful in a broad range of fields.

Removal Efficiency of Settleable Solids in Seawater Aquaculture Farm Wastewater (하이드로싸이클론을 이용한 해수 양식장 침전 고형물의 제거 효율 평가)

  • Junhyuk Seo;Pyongkih Kim;Jeonghwan Park
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.56 no.1
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    • pp.116-123
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    • 2023
  • Flow-through aquaculture systems generate large amounts of wastewater containing compounds such as solids that can settle near aquafarms and cause eutrophication. The settled solids are often reintroduced into flow-through systems, and aquatic animals can be affected by the solids and pathogens associated with these solids. For a sustainable aquaculture operation, adequate wastewater treatment is required. Hydrocyclones are one of the most promising technologies for the removal of solids in aquaculture wastewater. In this study, a model for performance prediction of hydrocyclones was investigated under three different operating conditions: water temperature, solids concentration, and water inlet velocity. The synthetic solids solution was prepared using settled solids from abalone aquaculture farms. The daily solids removal rates of the tested hydrocyclones ranged from 0.18 to 26.0 g solids-m-3-day-1, and removal efficiency ranged from 5.1 to 34.4%. The inlet water velocity had the greatest effect on solids removal and hydrocyclone efficiencies. The following multiregression model equation was derived from the daily solids removal rate (g solids-m-3-day-1) results for water temperature (T, ℃), solids concentration (SS, mg-L-1), and tangential inlet water velocity (TIV, m-sec-1): daily solids removal rate: f(z)=4.465+0.809TIV-0.375T+0.217SS (r2=0.976).

A Study on the Activities of Daily Living, Self-efficacy and the Health Promoting Behavior in Stroke Patients (뇌졸중 환자의 일상생활동작 수행능력, 자기효능감 및 건강증진행위에 관한 연구)

  • Park, Seon-Il;Cho, Bok-Hee
    • The Korean Journal of Rehabilitation Nursing
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    • v.7 no.2
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    • pp.149-158
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    • 2004
  • Purpose: The purpose of this study to analyze the relationship the activities of daily living(ADL), self-efficacy, and health promoting behaviors. Method: The research was a descriptive survey study. The subjects of this study were 115 hospitalized stroke patients to two General hospitals and one Oriental treatment hospital in G. Metropolitan. Data was collected through questionnaires from December 1st, 2003 to January 30th, 2004. The survey instruments used in the study Shah, Vanclay and Cooper's MBI(11 items), and Sherer and Maddux's self-efficacy(10 items), Walker, Sechrist, and Pender's HPLP(23 items) was developed by the researcher. The obtain data were analyzed with an SPSS 10.0 program using frequency, percentage, Cronbach's alpha, t-test, ANOVA, Duncan test, and Pearson's correlation coefficient. Result: The results were as follows; The level of ADL the score was 50.5, self-efficacy 40.4, and health promoting behavior 54.6. There were significant differences of ADL by general and disease related characteristics as follows : for monthly income(F=2.72, p= .048), duration of stroke(F=7.98, p= .001), number of attack(F=5.21, p= .007), operation (F=17.88, p= .000). There were significant differences of self-efficacy by general and disease related characteristics as follows : for monthly income(F=4.83, p= .003), number of attack (F= 6.20, p=. 003), operation(F=4.03, p= .047). There were significant differences of health promoti ng behaviors by general and disease-related characteristics as follows : for aphasia(F=4.24, p=.042). There were significant correlated between ADL and self-efficacy(r= .698, p=.000), self- efficacy and health promoting behavior(r=.398, p= .000), ADL and health promoting behavior(r= .235, p= .011). Conclusion: As a result, There was a significant correlation between ADL, self-efficacy and health promoting behaviors. There will be considered useful nursing intervention effect to progress, support health promoting behavior of stroke patients.

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A Study on the Performance of Flat-plate Solar Air Collector and its Application to Grain Drying (평면식 태양열집열기를 이용한 곡물 건조개선에 관한 연구)

  • 민영봉;최규홍
    • Journal of Biosystems Engineering
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    • v.3 no.2
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    • pp.114-125
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    • 1978
  • The use of petroleum fuels in grain drying causes problems of high cost and management. To solve these problems, it is required to study on soLar energy as an alternative to petroleum fuels for grain drying. The purposes of this study were to find out the optimum received area and air flow rate of a flat-plate solar air collector for grain drying and to assess its effects on grain drying with a small grain bin. The results of this study are summarized as follows ; 1. The calculated optimum tilt angles of the collector in the summer and autumn drying seasons were 20 and 50 degress, respectively, in suwon area. 2. The outlet temperature of the collector was $36^\circ C$ on the daily average with the maximum of $36^\circ C$ at 12:00 o clock. Solar radiation on the collector surface was 1.04 ly( 1 langley = 1 cal/$cm^2$) per minute on the daily average and 1.30 ly per minute on the maximum at 11:00am. The thermal efficiency of the collector was 62.4 percent on the daily average, and the air flow-rate per unit receiving are was 1.03 $m^3$/min/$m^2$.4. The calculated optimum receiving area and the air flow-rate per unit cubic volume for paddy in autumn drying season was 2 $m^2$ and 2$m^3$/min , respectively. 5. not significantly difference in the collector efficiency was appeared between the rotating and fixed type of solar collector. 6. For drying of wheat with 0.6 meter of the depth in the bin, approximately 9 hours were required to reduce the moisture content from 21.6% to 13% with air follow rate of 5 $m^3$/min an initial moisture per cubic meter of wheat and with air temperature of $52^\circ C$. 7. In the drying test of rough rice with a turning operation in a grain bin approximately 21 hours were required to reduced the moisture from 21% to 14.5% with airflow rate of 2 $m^3$/min per cubic meter of rice and the air temperature of $43.5^\circ C$. 8. Over-drying at the bottom and less -drying at the top of the grain mass was resulted from the high -temperature of drying air which was obtained from the flat-plate solar collector in this test. An appropriate operation should be prepared for the uniform moisture of the grain in the bin.

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Bhumipol Dam Operation Improvement via smart system for the Thor Tong Daeng Irrigation Project, Ping River Basin, Thailand

  • Koontanakulvong, Sucharit;Long, Tran Thanh;Van, Tuan Pham
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.164-175
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    • 2019
  • The Tor Tong Daeng Irrigation Project with the irrigation area of 61,400 hectares is located in the Ping Basin of the Upper Central Plain of Thailand where farmers depended on both surface water and groundwater. In the drought year, water storage in the Bhumipol Dam is inadequate to allocate water for agriculture, and caused water deficit in many irrigation projects. Farmers need to find extra sources of water such as water from farm pond or groundwater as a supplement. The operation of Bhumipol Dam and irrigation demand estimation are vital for irrigation water allocation to help solve water shortage issue in the irrigation project. The study aims to determine the smart dam operation system to mitigate water shortage in this irrigation project via introduction of machine learning to improve dam operation and irrigation demand estimation via soil moisture estimation from satellite images. Via ANN technique application, the inflows to the dam are generated from the upstream rain gauge stations using past 10 years daily rainfall data. The input vectors for ANN model are identified base on regression and principal component analysis. The structure of ANN (length of training data, the type of activation functions, the number of hidden nodes and training methods) is determined from the statistics performance between measurements and ANN outputs. On the other hands, the irrigation demand will be estimated by using satellite images, LANDSAT. The Enhanced Vegetation Index (EVI) and Temperature Vegetation Dryness Index (TVDI) values are estimated from the plant growth stage and soil moisture. The values are calibrated and verified with the field plant growth stages and soil moisture data in the year 2017-2018. The irrigation demand in the irrigation project is then estimated from the plant growth stage and soil moisture in the area. With the estimated dam inflow and irrigation demand, the dam operation will manage the water release in the better manner compared with the past operational data. The results show how smart system concept was applied and improve dam operation by using inflow estimation from ANN technique combining with irrigation demand estimation from satellite images when compared with the past operation data which is an initial step to develop the smart dam operation system in Thailand.

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A Study on Working Time and Psychological Difficulties of National and Public Daycare Center Teachers in the Operation Process of an Accreditation System (평가인증 운영과정에서 국공립 어린이집 보육교사의 직무수행 시간과 심리적 어려움에 관한 연구)

  • An, So Young
    • Korean Journal of Childcare and Education
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    • v.12 no.1
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    • pp.203-223
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    • 2016
  • The purpose of this study is to reveal working time and psychological difficulties of national and public daycare center teachers in the operation process of an accreditation system and seek ways of resolving them. For this purpose, a survey was conducted on 413 teachers in 291 national and public daycare centers in Seoul, Gyeonggi, and Incheon, and in-depth interviews were conducted with 7 nursery teachers. It showed that in the operation process of an accreditation system, teachers had been performing heavy tasks of 11 hours daily, and they were experiencing psychological difficulties with the conflict 'between interactions with infants and other duties', 'between free exploration and safety health', and 'between our story and external criteria'. Based on the findings, the following changes of recognition for nursery teachers were required. First, there is a need for the change of recognition concerned with the child-care of high quality, rather than performing evaluation index. Second, there is a need for the change of recognition concerned with overall optimization rather than sectional optimization. This study is significant in that it suggested the basic direction for the operation process of an accreditation system, by exploring the psychological difficulties of nursery teachers.