• Title/Summary/Keyword: mineral component

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Component(mineral) difference of Phellinus linteus on cultured to timber (기주식물에 따른 목질진흙버섯의 일반성분(무기물) 함량변화 I)

  • Lee, Soo-Won;Han, Ki-Won;Jang, Won-Cheoul;Lee, Dae-Jin;Jung, Dong-Sik;Lee, Byung-Eui
    • Journal of Mushroom
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    • v.3 no.3
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    • pp.100-104
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    • 2005
  • We investigated mineral difference from mushroom Phellinus linteus and Phellinus baumii on mulberry, oak and elm. ICP test, The major mineral components were K, Ca, and Fe, while Mg, Na, P, Cr, Mn, Cu and Zn were determined as micro mineral components. In case of P.linetus and P.baumii the component of K was shown as 699.0mg/100g and 630mg/100g, in oak, 340.7mg/100g and 314.6mg/100g in elm, and 311.6mg/100g and 311.6mg/100g in mulberry respectively. In Ca, mulberry fruiting body were shown about 2 times highest and expecially in case of Na was oak fruiting body were shown as 10 times highest as against the others sample groups. In micro mineral components, Zn component was shown very diffeence about sample groups. We concluded that the highest mineral component of K was shown in mushroom cultivated on oak of both P.linetus and P.baumii. As a results, mineral component has showed very difference on cultivated to timber. According to the results of mineral component we concluded that Phellinus linteus and Phellinus baumii has mineral component different depending on timber.

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Development of Multi-Components Model of Cement Hydration

  • Wang, Xiao-Yong;Lee, Han-Seung;Gyeong, Je-Un;Park, Gi-Bong
    • Proceedings of the Korean Ceranic Society Conference
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    • 2007.07a
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    • pp.129-137
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    • 2007
  • This paper presents a numerical model which can predict degree of hydration of cement mineral component, such as $C_{3}S$, $C_{2}S$, $C_{3}A$, $C_{4}AF$ and microstructure of hydrating cement as a function of water to cement ratio, cement particle size distribution, cement mineral components and temperature. In this model cement particles are parked randomly in cell space and hydration process is described using a multi-component integrated kinetic model. The simulation result of degree of hydration of cement mineral component agrees well with experiment result. The content of cement hydration product, such as CSH and CH can be obtained as an accompanied result during hydration process. By introducing of equal-area projection method, water withdrawl mechanism and contact area among cement particles can be considered in detail. By using proposed method, pore size distribution of hydrating cement is predicted.

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Development of Multi-Components Model of Cement Hydration

  • WangXiaoYong
    • Cement Symposium
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    • s.34
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    • pp.129-137
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    • 2007
  • This paper presents a numerical model which can predict degree of cement mineral component, such as $C_3S$, $C_2S$, $C_3A$, $C_4AF$ and microstructure of hydrating cement as a function of water to cement ratio, cement particle size distribution, cement mineral components and temperature. In this model cement particles are parked randomly in cell space and hydration process is described using a multi-component intergrated kinetic model. The simulation result of degree of hydration of cement mineral component agrees well with experiment result. The content of cement hydration product, such as CSH and CH can be obtained as an accompanied result during hydration process. By introducing of equal-area projection method, water withdrawl mechanism and contact area among cement particles can be considered in detail. By using proposed method, pore size distribution of hydrating cement is predicted.

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Urinalysis and Mineral Composition of Calculus (30 Cases) (개에서의 요 결석증: 품종, 성별, 발생부위, 요 검사, 및 결석성분의 비교 (30예))

  • 정성목
    • Journal of Veterinary Clinics
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    • v.19 no.2
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    • pp.272-275
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    • 2002
  • A retrospective analysis was performed with 30 cases of canine urolithiasis presented in the period between January and December 2001 The miniature schnauzer (6 cases), maltese (5 cases) and Shih Tzu (4 cases) had higher incidences than other breeds. Canine urolithiasis occurred from one year till 12 years, but the most prevalent age was 3 years. Urinary calculi occurred more often in males (63%) than females. The most prevalent anatomic locations of calculi were urinary bladder (8 of 22 cases) and urethra (13 of 22 cases) in males and urinary bladder (10 of 18 cases) in females. The major mineral component of calculi was struvite (72%). In male dogs, out of 15 cases, 10 cases were struvite and 5 cases were calcium oxalate uroliths. And, in female dogs, 8 of 10 cases were struvite. In some cases, mineral composition and urine pH was not matched. In conclusion, in the dogs with predisposing factors for urolithiasis, regular examination or proper diet should be added to prevent the disease. And the mineral composition of calculi should not be predicted solely by the pH or crystal component of urine.

A Performance Enhancement of Osteoporosis Classification in CT images (CT 영상에서 골다공증 판별 방법의 성능 향상)

  • Jung, Sung-Tae
    • Journal of Korea Multimedia Society
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    • v.19 no.8
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    • pp.1248-1259
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    • 2016
  • Classification methods based on dual energy X-ray absorptiometry, ultrasonic waves, and quantitative computed tomography have been proposed. Also, a classification method based on machine learning with bone mineral density and structural indicators extracted from the CT images has been proposed. We propose a method which enhances the performance of existing classification method based on bone mineral density and structural indicators by extending structural indicators and using principal component analysis. Experimental result shows that the proposed method in this paper improves the correctness of osteoporosis classification 2.8% with extended structural indicators only and 4.8% with both extended structural indicators and principal component analysis. In addition, this paper proposes a method of automatic phantom analysis needed to convert the CT values to BMD values. While existing method requires manual operation to mark the bone region within the phantom, the proposed method detects the bone region automatically by detecting circles in the CT image. The proposed method and the existing method gave the same conversion formula for converting CT value to bone mineral density.

Studies on the Mineral Component and Antioxidative Activity of Gastrodia elata Blum (천마의 무기성분 및 항산화 작용에 관한 연구)

  • 김진구;차원섭
    • Food Science and Preservation
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    • v.4 no.3
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    • pp.317-321
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    • 1997
  • The mineral components of the Gastrodia elata Blum were determined by inductively coupled plasma-atomic emission spectrophtometry. The mineral component contents of the Gastrodia elata Blum were greater in the order of Fe < Na < Mg < Ca < P < K. The antioxidative effects of the Gastrodia elata Blum extracts on refined perilla oil were investigated by the rancimat method, peroxide value and TBA value. The antioxidative effects of Gastrodia elata Blum added to the refined perilla oil was increased with dose-dependent fashion in concentration of Gastrodia elata Blum extracts. The peroxide value and TBA value for their antioxidation stability were also lower than that of control. Antioxidation stability was increased in a dose-dependent manner.

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A Study on the Extraction Time and Component Analysis of Goat Meat with Bone Extract (흑염소 육골액의 적정 추출시간 및 성분 분석에 관한 연구)

  • 조길석
    • Food Science and Preservation
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    • v.9 no.4
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    • pp.396-399
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    • 2002
  • An attempt was made in this study to investigate the optimum extracting time from meat with bone of goat and the nutritional component of its extract. for the trials, the mixtures of meat with bone and water were adjusted to the ratios of five to four by weight and extracted for 6, 9 and 12 hours at 120$\^{C}$ under autoclave. Judging from the content of mineral and amino acid, nonenzymatic browning and yield, the optimum extracting time was 9 hours. The major components of mineral were composed of 47.7mg% potassium, 12.7mg% calcium, 150.0mg% sodium, 105.3mg% phosphorus and 0.5mg% iron, and of amino acids composed of 1,308.0mg% glutamic acid, 1,464.2mg% glycine, 750.2mg% alanine and 828.lmg% proline in extract. The yield of extract was 32.1 percentage by dry basis.

A Study on the Selective Leaching of the Copper Component by Sulfation Process (황산화 배소법에 의한 구리성분의 선택적 침출연구)

  • Kim, Woo Jin;Kim, Joon Soo;Kim, Myong Jun;Tran, Tam;Lee, Jin-Young;Shin, Shun-Myung
    • Resources Recycling
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    • v.25 no.5
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    • pp.57-63
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    • 2016
  • This study were carried out sulfation roasting and selective leaching test for the effective recovery of copper component in concentrate obtained by froth floatation of Autrallian low grade copper ore. The optimum conditions of sulfation roasting were temp. $450^{\circ}C$, $Na_2SO_4$ 2 mole ratio and time 1.5 h, and then selective leaching were room temperature and $H_2O$ or 1M $H_2SO_4$ solutions. Leaching efficiency of optimum sulfation product were 90 wt.% of copper, 20 wt.% of iron and 15wt.% of nickel elements. In this results, it was possible to selective decomposition leaching of the copper component under optimum conditions in this research.

Effect of Dietary Fiber on Mineral Bioavailability (식이섬유가 무기질의 생체이용에 미치는 영향)

  • Choe, Myeon
    • Journal of Food Hygiene and Safety
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    • v.7 no.4
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    • pp.165-172
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    • 1992
  • Among the nutrients of biological importance, minerals are of particular interest in human nutrition because the range of adequate intake is so narrow. As the results of a series of interaction experiments between dietary fiber sources and minerals, there are many inconsistencies in the experimental data regarding the effect of dietary fibers on mineral bioavailability. the mechanism by which dietary fiber might influence mineral absorption is related to its physicochemical properties. These properties involve the ability of dietary fiber to (1) act as a weak cation exchanger, (2) decrease transit time, (3) dilute mineral concentration by increasing fecal bulk and (4) resist digestion in the large bowel. Regardless of the large number of human and animal studies available, a carful review of these publications dose not provide the answer as to whether the adverse effect of dietary fibers on mineral absorption is the fiber itself or some associated dietary factors( e.g. phytate, oxalate, ascorbate, citrate and protein, mineral-mineral interaction, etc) that are responsible for this action. As a result of the complexity of interaction that may take place between minerals. dietary fiber, and other component of food ; it becomes very difficult to blame fiber alone as a negative factor of mineral nutrition. We absolutely need more research with advanced tools rather than metabolic balance study.

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Studies on the Application of Cattle Slurry in Grassland I. Effect of the application times and levels of cattle slurry on the fry matter yield and botanical composition in grassland (혼파초지에서 액상구비시용에 관한 연구 I. 액상구비의 시용시기 및 시용수준이 목초의 건물수량 및 식생구성에 미치는 영향)

  • 김재규;박근제;이혁호;정의수
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.11 no.3
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    • pp.182-188
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    • 1991
  • With a purpose of finding out the effects of cattle slurry applicatioin on the dry matter yield, yield component, and botanical composition in the mixed sward, a field experiment was conducted with two times and five levels of cattle slurry application. The experimental field was laid.out in a split-plot design with three replications, and lasted from September. 1986 to October, 1990 at the Livestock Experiment Station in Suweon, The results obtained are summarized as follows: 1. At each harvest time, the plant growth of the plots with cattle slurry application was slightly worse when compared to dressing of mineral fertilizer. 2. Average dry matter yield for 4 years was not significantly different between the slurry application times, just after cutting, and 15 days after cutting, The DM yield in the plot with cattle slurry 30 m!/ha and mineral fertilizer(9,095 kg/ha) and with cattle slurry 60 m1/ha and mineral fertilizer(8, 987 kg/ha) were decreased by 8% and 10% than that of the plot with mineral fertilizer application(9,937 kg/ha), respectively. 3. The DM yield component of the plots with cattle slurry application just after cutting was much better when compared to manuring 15 days after cutting. And it was much better in the plot with cattle slurry 60 m"/ha and mineral fertilizer which was composed of 73.8% grasses(6.636 kg/ha). 24.6% legumes (2,207 kdha) and 1.6% weeds(144 kdha). 4. In general, the botanical composition was relatively good in the plots with slurry application just after cutting. Grassland vegetation of the plots with cattle slurry 60 m"/ha and mineral fertilizer was changed into much better botanical composition with 66.8% grasses, 30.2% legumes and 3. 1% weeds at the end of the experiment.xperiment.

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