• Title/Summary/Keyword: Environmental Balance

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Life Cycle Assessment for the Business Activities of Green Company -2. Mass Balance and Environmental Improvement (녹색기업의 사업활동 전 과정에 대한 환경성 평가 -2. 물질수지 및 환경개선)

  • Shin, Choon-Hwan;Park, Do-Hyun
    • Journal of Environmental Science International
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    • v.22 no.4
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    • pp.425-433
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    • 2013
  • A mass balance of process was calculated by using the analysis of basic unit and environmental assessment of all the processes of Busan fashion color industry cooperative that operates a combined heat and power plant and a bio treatment plant. The mass balance for the combined heat and power plant was done, based on boiler and water treatment processes while each unit reactor was used for the bio treatment plant. From the results above, a resource recycle network, a treatment flowchart for food waste water/wastewater treatment and a carbon reduction program were established.

The Effect of Balance Training and environmental enrichment on motor performance after Traumatic Cerebellar Injury in the Rat (균형훈련과 환경강화가 외상성 소뇌 손상 흰쥐의 운동 수행력에 미치는 영향)

  • Song Ju-min;Kim Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.16 no.2
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    • pp.72-89
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    • 2004
  • The purposes of this study were to test the effect of balance training and environmental enrichment on motor performance after traumatic cerebellar injury in the rat. Traumatic cerebellar injury was induced by weight drop model and after operation they were housed in individual standard cages for 24 hours. Twenty two Sprague-Dawley rats were randomly assigned into control and experimental groups. The control group was housed in standard cage for 7 days. The experimental group I was housed in standard cage after balance training for 7 days. The experimental group II was housed in environmental enrichment cage after balance training for 7 days. Vestibular drop test and tilting plane test was examined at preoperation, on 1st day after operation and 7th day after operation to the rats. The results of this experiment were as follows: 1. In motor behavioral test, at preoperation and on 1 day after operation, the outcomes were not different among the groups. But on 7th day after operation, the outcomes of group I were better than that in control group, and group II were better than group I. These results suggest that behavioral motor outcome by simultaneously application of balance training and environmental enrichment in traumatic cerebellar injured rats were more improve than that by just balance training.

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Numerical Simulation of Turbulence-Induced Flocculation and Sedimentation in a Flocculant-Aided Sediment Retention Pond

  • Lee, Byung Joon;Molz, Fred
    • Environmental Engineering Research
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    • v.19 no.2
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    • pp.165-174
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    • 2014
  • A model combining multi-dimensional discretized population balance equations with a computational fluid dynamics simulation (CFD-DPBE model) was developed and applied to simulate turbulent flocculation and sedimentation processes in sediment retention basins. Computation fluid dynamics and the discretized population balance equations were solved to generate steady state flow field data and simulate flocculation and sedimentation processes in a sequential manner. Up-to-date numerical algorithms, such as operator splitting and LeVeque flux-corrected upwind schemes, were applied to cope with the computational demands caused by complexity and nonlinearity of the population balance equations and the instability caused by advection-dominated transport. In a modeling and simulation study with a two-dimensional simplified pond system, applicability of the CFD-DPBE model was demonstrated by tracking mass balances and floc size evolutions and by examining particle/floc size and solid concentration distributions. Thus, the CFD-DPBE model may be used as a valuable simulation tool for natural and engineered flocculation and sedimentation systems as well as for flocculant-aided sediment retention ponds.

A Study on the subjective cognition and conflict degree of work-family balance and family strength of a dual career men (맞벌이 기혼남성의 일-가정 균형의 주관적 인식 및 갈등정도와 가정의 건강성 인식)

  • Yoon, So-Young;Kim, Hye-Jin
    • Journal of Family Resource Management and Policy Review
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    • v.17 no.2
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    • pp.19-35
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    • 2013
  • The purpose of this study is to analyze the effective factors that influence subjective cognition, conflict degree of work-family balance, and cognition of family strength according to general characteristic factors, working environmental factors, and home environmental factors, as well as analyze the relationships among subjective cognition, conflict degree, and cognition of family strength. The main data source for analysis in this study is the Second National Survey of Korean Families by the Ministry of Gender Equality and Family in 2010. The survey includes the analysis of 419 respondents who have a dual income and live with their wife. The collected data are analyzed using SPSS 19.0. The results of the study are as follows. First, subjective cognition of work-family balance is influenced by satisfaction of work, division of housework, and care of family. Second, the conflict degree of work-family balance is influenced by age, working week, and satisfaction with work. Third, the relationship between subjective cognition and conflict degree of work-family balance is a negative correlation. The relationship between subjective cognition of work-family balance and cognition of family strength is a positive correlation but the difference between conflict degree of work-family balance and cognition of family strength is not significant. Finally, for the married men, the working environmental factor is a significant factor for the work-family balance. And the higher the satisfaction of work and division of domestic work, the greater is the balance between work and family. This suggests that they also have a higher cognition of family strength.

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Multifactor Balance Concept as a Primary Countermeasure for Environmental Stresses of Crops (작물의 일차적 재해방지 요건으로서의 다요인 평형조절 개념)

  • 박천서
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.34 no.s02
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    • pp.1-12
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    • 1989
  • The primary countermeasure for environmental stresses of crops grown in Korea would be to maintain top soil content of available B for upland crops and Si for low land rice in balance with other nutrient elements such as N, P and K, so as to maintain those nutrient balances in plants. Development of standard levels of elements in soils for balances uptake of those elements by plants are needed under the multi nutrient factor balance concept using the soil test results.

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Estimation of N-balance and Agronomical Approaches to Minimizing Nitrogen Pollution in Korea Agriculture (한국 국토의 질소부하화 질소오염 방지대책)

  • 류종원
    • Journal of Animal Environmental Science
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    • v.3 no.2
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    • pp.125-131
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    • 1997
  • This paper was discussed N-balance of the republic of Korea. About 397Kg N/ha was inputted into the chemical fertilizer, animal feed, precipitation and nitrogen fixation. About 15kg N/ha was outputted from the Korea. The amount of N surplus was 397kg N/ha and loaded into environment. This causes the problem of water, air and soil pollution. It should take measures to improve the situation, such as depending more on selfsufficient feed and using nutrient cycling functions of soils.

Introduction to the Applied Kinesiology, as a Yin-Yang Balance Based Approach (음양균형의학으로서의 응용근신경학(AK) 개요)

  • Yin, Chang Shik
    • Journal of TMJ Balancing Medicine
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    • v.7 no.1
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    • pp.24-31
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    • 2017
  • Applied Kinesiology (AK) is an evaluation system on the functional balance and integration of the body. Functional aspects of the triad of health are evaluated through muscle testing to see if the balance and integration is in an optimal status or is influenced by a given environmental stimulation. Triad of health refers to the structural, chemical, and psychological aspects of the body. Muscle testing in AK is a functional neurological assessment of muscular response to a given environmental stimulation in a given individual. Meridian system and stomatognathic system as in TMJ balancing medicine serve as one of the theoretical basis of AK. This article reviews core concepts of AK, discusses yin-yang balance medicine perspectives and clinical applications of it.

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A Literature Review on Balance Control Factors (균형조절 요인에 관한 고찰)

  • Lee, Han-Suk;Choi, Houng-Sik;Kwon, Oh-Yun
    • Physical Therapy Korea
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    • v.3 no.3
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    • pp.82-91
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    • 1996
  • Normal balance is defined as state in which the body is equlilibrium. It is complex motor control task, requring integration of sensory information, neural processing, and biomechanical factors. There are major two factors contribute to balance control, the neurological and the musculoskeletal. The neurological factor provides the sensory processing and motor output mechanisms that are the neurophysiological basis for response. The musculoskeletal factor provides the mechanical structure for response. When all components of two factors are operating effectively, the postural response should be appropriate and effective for good balance control. Therfore, balance can be influenced by above all factors. In addition, balance can be also influenced by muscle tone, hearing, physiological factors, and environmental factors. Physical therapists must understand factors of balance control so that we can accurately assess balance. Therefore, physical therapists have to develop useful balance measurement tools to evaluate balance.

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Development of Wastewater Treatment Process Simulators Based on Artificial Neural Network and Mass Balance Models (인공신경망 및 물질수지 모델을 활용한 하수처리 프로세스 시뮬레이터 구축)

  • Kim, Jungruyl;Lee, Jaehyun;Oh, Jeill
    • Journal of Korean Society of Water and Wastewater
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    • v.29 no.3
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    • pp.427-436
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    • 2015
  • Developing two process models to simulate wastewater treatment process is needed to draw a comparison between measured BOD data and estimated process model data: a mathematical model based on the process mass-balance and an ANN (artificial neural network) model. Those two types of simulator can fit well in terms of effluent BOD data, which models are formulated based on the distinctive five parameters: influent flow rate, effluent flow rate, influent BOD concentration, biomass concentration, and returned sludge percentage. The structuralized mass-balance model and ANN modeI with seasonal periods can estimate data set more precisely, and changing optimization algorithm for the penalty could be a useful option to tune up the process behavior estimations. An complex model such as ANN model coupled with mass-balance equation will be required to simulate process dynamics more accurately.

Directions for Linkages between Policy Measures and the OECD Agricultural Environmental Indicators (OECD 농업환경지표와 정책연계 방안)

  • Kim, Chang-Gil;Kim, Tae-Young
    • Korean Journal of Environmental Agriculture
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    • v.24 no.3
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    • pp.303-313
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    • 2005
  • Agricultural environmental indicators (AEIs) are useful tool for evaluating environmental performance induced by agri-environmental policy measures. General and specific criteria have been set to assess the linkages between policy measures and environmental states. In addition, a number of specific AEIs such as nutrient balance indicators and farm management indicators have been posit to review environmental performance associated with agri-environmental policy measures. The proposed environmental subjects encompass soil quality, qualities of underground and surface water, water resource preservation, species and genetic diversity, diversity for wildlife habitats, and agricultural landscapes. The developed AEIs may contribute to establishment or adjustment of environmental targets and ex-ante or ex-post evaluation for environmental performance associated with policy measures. In addition, the AEIs may be useful to consider introduction of new agri-environmental measures and enhance policy efficiency by assessing environmental performance, considering specific locality, and harmonizing support measures.