• 한국식품영양과학회지
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• 제11권1호
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• pp.45-49
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• 1982

이상의 실험 결과에서 유화제나 증점제가 polyphosphates의 용도처럼 목적에 따라 다양한 경도의 변화를 가져오지 않는 것은 이들 화합물이 Bonell의 제시처럼 polyphosphates가 cheese내에서 단백질과의 완충 작용 및 원하는 texture형성을 하지 못하는 것으로 보인다. 더욱 중요한 것은 polyphosphates가 주는 특유한 processed cheese맛을 내지 못하는 것이다. 모래알같은 조직감을 주는 것은 균일하게 분산되지 않은 단백질이 화합되거나 결정화되기 때문인 것으로 보인다. 증점제나 유화제의 부분적 대치는 물성적으로 좋은 제품을 만들 수 있다. 이러한 결과는 체내에 흡수되어야 할 polyphosphates의 완전 대치는 process cheese의 전형적인 질을 고려한다면 불가능한 것으로 보여진다. 적은 비율의 유지방 cheese 제조에 있어 polyphosphate대치가 이러한 제품에선 현저한 영향을 미치지 않는 것으로 보인다.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 2007년도 Proceedings of The Convention of The Korean Society of Applied Pharmacology
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• pp.25-44
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• 2007

The glucocorticoid receptor (GR) is an intracellular protein that is widely distributed throughout hippocampal and neocortical brain tissue. Mifepristone (RU486) is a potent GR antagonist that has also been shown to exhibit partial agonist-like effects. The precise location of the GR domain involved in the agonist-like activity of RU486 is unknown. Here, we examine this aspect of GR signaling by comparing human GR (hGR) construct with a Guyanese squirrel monkey GR (gsmGR) construct in which nuclear translocation and transactivation are known to be impaired. Using an objective translocation scoring method, we found that both hGR and gsmGR are translocated by RU486, and that nuclear translocation of hGR is significantly increased compared to gsmGR at 10 nM, 100 nM and 1000 nM RU486 in transiently transfected COS1 cells. While addition of RU486 to the cells transfected with hGR results in a 16-fold dose-dependent increase in transactivation compared to non-treated cells, no significant change in transactivation is observed with gsmGR at doses up to 100 nM RU486. Further experiments using six GR chimeras indicate that replacement of the hGR carboxyl-terminus of tau-1 transactivation domain (C-AF1, amino acids 132-428) with that from gsmGR diminishes hGR transactivation by RU486. These results demonstrate that RU486-induced transactivation of GR is determined in part by amino acids in the C-AF1 domain.

• 한국식품과학회지
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• 제18권1호
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• pp.11-15
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• 1986

탈유당 탈지분유만으로 조제한 모방치-즈는 칼슘카제인 단백질로 만든 제품에 비하여 용융면적이 현저히 감소하였으며 단백질원이 용융면적을 변화시키는 주요한 요인이라는 사실이 통계학적으로 규명되었다. 비슷한 결과로 용융온도도 사용된 단백질원에 따라 현저한 차이를 나타내었다. 모방치-즈제품의 미시적 조직검경에서 탈유당 탈지분유의 첨가량을 감소시키면 치-즈제품의 조직은 보다 균일하고 지방구의 분산정도도 탈유당 탈지분유 단독 사용시보다 양호하여 치-즈제품의 주원료인 대체 단백질원으로 탈유당 탈지분유의 부분사용이 가능하였다.

• Structural Engineering and Mechanics
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• 제53권6호
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• pp.1241-1251
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• 2015

Faced with the growing needs of material resources and requirements of environmental protection for achieving sustainable development, it has become necessary to study and investigate all possibilities of exploring crushed and dune sand, reusing industrial wastes and by-product, and also applying new technologies including sand concrete which can replace the conventional concretes in certain structures to surmount the deficit on construction materials, conserve natural resources, lessen the burden of pollutants to protect the environment and reduce the consumption of energy sources. This experimental study is a part of development and valorization of local materials project in Skikda region (East of Algeria). It aims at studying the effects of partial replacement of sand with marble waste as fines on several fresh and hardened properties of sand concrete in order to reuse these wastes in the concrete manufacturing, resolve the environmental problems caused by them and find another source of construction materials. To achieve these objectives, an experimental program has been carried out; it was consisted to incorporate different percentages of marble waste fines (2, 4, 6, 8, 10 and 12%) in the formulations of sand concrete and study the development of several mechanical and rheological properties. We are also trying to find the optimal percentage of marble waste fine replaced in sand concrete that makes the strength of the concrete maximum. Obtained results showed that marble waste fines improve the properties of sand concrete and can be used as an additive material in sand concrete formulation.

• 자원ㆍ환경경제연구
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• 제10권1호
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• pp.95-126
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• 2001

Functional values for wastewater treatment and atmospheric regulation in coastal wetland and rice paddy ecosystems are quantified, and an illustration is given on how to integrate biophysical parameters into a valuation framework. This is one of most controversial issues in economic analysis for wetland preservation versus wetland conversion to agricultural use. This paper includes theoretical considerations for estimating functional values of environmental ecosystems, and the integration of biophysical data and replacement cost method employed. Specific physical and geographical characteristics and data on ecosystem functions and services in coastal wetlands and rice paddies are addressed for evaluating their values in economic terms. In particular this paper indicates double counting problems and overestimation in the previous studies, and demonstrates how to avoid them and to maintain the consistency of valuation process involving a least-cost method, thus enables an accurate integration of the coastal wetland ecology and wetland economics. As a result which is far away from the previous studies, the total economic present value of wastewater assimilation by coastal wetland is estimated at 7,484,640 won/ha, and the net present value of positive effect for atmospheric regulation, negative effects for air pollution and water pollution by rice paddy is estimated at -37,934 won/ha, assuming that resources are infinitely long-lived and the annual value and the rate of discount (10%) is constant every year. In conclusion, for further reliability and validity of functional values for natural resources it is very noteworthy that a general equilibrium framework that could directly incorporate the interdependence between ecosystem functions and services would be preferred to the partial equilibrium framework.

• 한국농공학회지
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• 제42권
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• pp.85-91
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• 2000

Dwindling supplies and increasing costs of conventional highway materials used in road construction as well as concerns over shrinking landfill spaces prompt researchers to investigate the use of waste products, such as fly ash, as substitute materials in highway construction. The highway industry is capable of utilizing waste materials in large quantities if their effect on pavement performance proves to be technically, economically and environmentally satisfactory. This research examines the effects of fly ash when used as partial replacement of aggregate in asphaltic concrete mixtures. And measuring the effect of fly ash on bulk specific gravity, air void, indirect tensile strength (ITS) under dry and wet conditioning as well as the tensile strength ratio (TSR) of asphaltic concrete mixture. The results indicated that asphaltic concrete mixtures containing 2% and 5% fly ash produced about the same TSR value as control mixture. And all of the mixtures met the minimum ITS and TSR requirements established by the South Carolina Department of Transportation (SC DOT) for Type 1A surface courses. At this point and with this limited study, these asphaltic concrete mixtures is recommended in several applications such as parking lot, secondary roads and driveways.

• 한국식품영양과학회지
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• 제19권6호
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• pp.571-576
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• 1990

본 연구는 카제인 원료 대체를 위해 탈유당 탈지분유를 모방치즈에 사용하였을 때 야기되는 조직 특성의 변화를 관찰하였다. 카제인 원료 대신 탈유당 탈지분유를 일부 대체 사용한 결과 fracturability, elasticity, gumminess성질은 향상하였으나 hardness와 cohesiveness 성 은 감소하였다. 비슷한 결과로 calcium caseinate와 sodium caseinate를 원료로 모방치즈를 만들었을 때 탈유당 탈지분유를 사용한 모방치즈와 비슷한 조직특성을 나타내었다. 따라서 탈유당 탈지분유를 카제인 원료대신 일부 모방 치즈에 대체 사용할 수 있음을 확인하였다.

• Advances in concrete construction
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• 제4권2호
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• pp.145-160
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• 2016

Marble is a metamorphic rock used widely in construction which increases amount of marble powder obtained from it. Marble powder is a waste product obtained from marble during its processing. Marble waste is high in calcium oxide content which is cementing property but it creates many environmental hazards too if left in environment or in water. In this research, partial replacement of cement and sand by waste marble powder (WMP) has been investigated. Seven concrete mixtures were prepared for this investigation by partially replacing cement, sand with WMP at proportions of 0%, 10% and 15% by weight separately and in combined form. To determine compressive strength, flexural strength and split tensile strength of concrete made with waste marble powder, the samples at the curing ages of 7, 28 and 90 days was recorded. Different tests of durability were applied on samples like ultrasonic pulse wave test, absorption and sorptivity. For further investigation all the results were compared and noticed that WMP has shown good results and enhancing mechanical properties of concrete mix on partially replacing with sand and cement in set proportions. Moreover, it will solve the problem of environmental health hazard.

• 한국양식학회지
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• 제18권2호
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• pp.92-97
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• 2005

This study examined the partial replacement of the fish meal with meat meal in practical diets for juvenile rock-fish. Five isonitrogenous (48% CP) diets were prepared to contain meat meal at 0% (control), 10%, 20%, 30% and 40% with substituting the mackerel meal in the control diet. Three replicate groups of fish (initial average weight, 4.1g) were hand-fed to visual satiety two times daily for 8 weeks. Survival (>93%) and daily feed intake were not significantly different (P>0.05) among treatments. The best weight gain, feed efficiency and protein efficiency ratio were obtained from fish fed the diets containing 0% and 10% meat meal, and were not significantly different (P>0.05) to those of fish 134 diet containing 20% meat meal. Condition factor, visceralsomatic index and hepatosomatic index were not influenced by dietary meat meal levels. The contents of crude protein and ash of whole body were not significantly affected (P>0.05) by dietary meat meal levels, whereas crude lipid content of fish fed the diets containing 30% and 40% was lower than that of fish fed the control diet. Proximate composition of liver was not influenced by dietary meat meal level (P>0.05). The data obtained in this study indicate that a diet containing $10{\sim}20%$ meat meal could be used for least-cost formulation in juvenile rockfish diet.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.152-153
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• 2013

Based on the Fire Service Act of mandatory provision, new buildings are strictly forced to use fire protection materials. Flame resistant EPS is one of those materials. Unlike conventional EPS that can be fused to make EPS ingot and be recycled for various purposes, flame resistant EPS waste cannot be recycled due to the presence of protective coating that is applied to increase the fire protection properties of EPS. A suitable alternative that can process large amount of flame resistant EPS wastes needs to be developed, and one of the possible alternative is to use them as construction materials. In this research, experiments were designed to observe whether the flame resistant EPS wastes can be utilized as partial replacements of fine aggregates in cement mortar. The replacement ratio of waste EPS was varied, and its effect on compressive strength and absorption capacity was investigated. According to the experimental results, both compressive strength and absorption capacity met the Korean Standard specification for cement bricks and blocks, indicating that flame resistant EPS wastes can be used for construction purposes.