• 대한치과의사협회지
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• 제12권7호
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• pp.521-526
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• 1974

This observation was carried out to investigate the inorganic constituents of dental calculus of varying locations and different ages. Supragingival calculus was obtained from 540 patients with the periodontal disease. The results were as follows : 1. The weight loss rate in ashing by aging was the highest in the 2nd decade (63.7%) and followed in order by 3rd decade (60.8%), seventh decade 959.8%), fourth decade (55.9%), sixth decade (52.6%) and fifth decade (43.2%). 2. The weight loss rate by ashing was more prominent in the buccal surfaces of the upper posterior teeth (62.0%) than in the lingual surface of the lower anterior teeth (59.7%). 3. The difference in contents of the inorganic constituents by sex was not remarkable. (male, Ca:373.0 P:333.9, female, Ca: 380.2, P: 339.6 ㎍/mg dry weight) 4. In the dry calulus, contents of the inorganic constituents were as follows: Ca:325.8 P:269.10 Mg:1.21 Na:8.44 K:1.32, Zn:0.67 ㎍/mg. 5. The Ca/P ratio was the lowest in the upper anterior region (1.11) and the highest in the lower posterior region (1.29) and the average was 1.20.

• Asian-Australasian Journal of Animal Sciences
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• 제16권12호
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• pp.1711-1715
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• 2003

The experiment was designed on 42 non pregnant Black Bengal goat. Out of which 18 were subjected to a superovulatory treatment comprising of eCG and hCG for embryo transfer study. The remaining 24 goats received no treatment and served as control for parameter studied as well as recipient for embryo transfer studies. Important biochemical constituents such as acid and alkaline phosphatase, total protein and cholesterol and inorganic phosphorus were estimated in the follicular fluid of control and treated group and the values were separately recorded for small medium and large size follicle. The results indicated a significant effect on acid phosphotase activity due to size of follicle. The value increased progressively from small to medium and from medium to large follicles. Alkaline phosphotase activity showed reverse trend. Alkaline phosphotase decreased progressively as size increased. The concentration of inorganic phosphorus did not reveal any significant difference between the control and treatment groups and also between the different size follicles. The concentration of protein decreased significantly from small to medium and from medium to large, although no difference was observed between the control and treatment groups. The concentration of Cholesterol in the follicular fluid indicated a significant increase from small to medium and to large follicle. Here also no difference was observed due to treatment. Similar in the composition of follicular fluid in the respect of above mentioned constituents indicated no of super ovulatory treatment on follicular fluid composition.

• 한국수산과학회지
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• 제11권3호
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• pp.129-138
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• 1978

The contents of inorganic conservative constituents in the downstream water were determined in spring tides of every month from May 1977 to April 1978 at eight stations of Nagdong River. Samples were taken at the intervals of one or two hours from 7 a. m. to 7 p. m. at each station. Annual ranges and means of the chemical constituents over all the stations except station one, Kupo, ate as follows: pH 6.4-9.3, 7.7; electrical conductivity $0.085-0.345\times10^3\;\mu\mho/cm,\;0.196\times10^3\;\mu\mho/cm;$ chloride 5.8-50.0ppm, 17.7ppm: fluoride ND-0.19 ppm, 0.06 ppm: sulfate 5.5-41.1 ppm, 20.7 ppm; calcium 6-26 ppm, 17 ppm; magnesium 2.0-12.8 ppm, 5.1 ppm; sodium 7-26 ppm, 13 ppm; potassium 1.4-3.8 pprn, 2.3 ppm respectively. The seasonal variations of contents of the chemical constituents were not large and showed nearly definite values at all the stations except station one, Kupo. At station one, seasonal variations were large and the contents were excessively high due to inflow of seawater compared with other stations. The values over 50 ppm in chloride were not determined during the determination period at Mul Geum where the intake station for Busan city water is located. Most constituents except pH and fluoride were over the criteria for drinking water at Kupo, while at other stations only pH value was exceeded the upper limit of the criterion especially in summer period. The pH values tended to increase in the afternoon when water temperature was high. The chloride concentration was shown the highest value at station one, Kupo, with about 2 hours delay after high water of Busan harbour and 3-3.5 hours at Mul Geum.

• Current Research on Agriculture and Life Sciences
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• 제11권
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• pp.19-23
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• 1993

지황(地黃)의 주(主) 약효성분(藥效成分)으로 알려져 있는 catalpol의 iridoid골격(骨格)과 glycosidic bond를 형성(形成)하는 유리당류(遊離糖類)를 확인(確認)하기 위하여 생육시기(生有時期)에 따른 무기성분(無記性分), 유리당류(遊離糖類), 회분(灰分), 엑기스 및 catalpol의 함량(含量)을 조사(調査)하였다. 수확기(收穫期)가 가까워질수록 P, K, Ca, Mg, Cu 및 회분(灰分)의 함량(含量)은 감소(減少)하였으나, Fe 및 엑기스의 함량(含量)은 증가(增加)하였다. 수확기(收穫期)가 가까워질수록 전당(全糖), sucrose 및 galactose의 함량(含量)은 감소(減少)하였으나, fructose 및 catalpol의 함량(含量)은 증가(增加)하였다.

• Journal of the Korean Wood Science and Technology
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• 제44권5호
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• pp.629-638
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• 2016

본 연구에서는 급속열분해 공정 중 팜 부산물(empty fruit bunch: EFB)에 존재하는 무기성분이 급속열분해 산물의 물리화학적 특성에 미치는 영향을 조사하였다. 팜 부산물에 존재하는 무기성분을 제거하기 위해 불산과 증류수를 사용하였으며, 팜 부산물의 회분 함량은 무기성분 제거 전 6.2 wt%에서 2.4 wt% (불산 처리: HF-EFB), 3.5 wt% (증류수 처리: DI-EFB)로 각각 감소하였다. 무기성분 정량 결과 팜 부산물에 다량 존재하고 있던 칼륨이 두 용매 모두에서 가장 높은 제거효율을 나타냈다(불산: 80.3%, 증류수: 78.3%). 무기성분이 제거된 팜 부산물은 유동형 급속열분해 장치를 이용하여(온도조건 $500^{\circ}C$, 체류시간 1.3초) 바이오오일, 바이오탄, 비응축성 가스로 변환시켰다. 바이오오일의 수율은 불산 처리 후 57.3 wt%, 증류수 처리 후 51.3 wt%로 각각 나타났다. 팜 부산물 내 무기성분 함량이 낮을수록 바이오탄의 수율은 감소하였고, 비응축성 가스의 수율은 증가하는 경향을 나타냈다. 바이오오일의 물리화학적 특성 분석결과에 의하면 수분 함량은 무기성분 제거 전 26.9%에서 불산 처리 후 9.9%로 감소한 반면 점도는 16.1 cSt에서 334 cSt로 증가하였다.

• 농업생명과학연구
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• 제46권2호
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• pp.49-61
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• 2012

본 연구는 하동지역의 녹차에 대해 근적외선 분광분석법(Near Infrared Spectroscopy, NIRS)을 이용하여 채취시기별 화학적 성분(총질소, 엽록소, 탄닌, 유리아미노산, 데아닌, 비타민 C, 카페인, 카테킨류, 총카테킨) 및 무기물 성분 변화에 대하여 분석하였다. 녹차의 화학적 성분 함량에 있어 엽록소, 탄닌, 비타민 C와 총카테킨 함량은 채취시기가 늦어질수록 증가한 반면, 총질소, 유리아미노산, 데아닌, 카페인 등은 대체로 감소하는 경향을 보였다. 무기물 함량은 채취시기가 늦어질수록 Mg, Ca, Mn은 증가하였으나 Na, K, B는 감소하였다. 또한 우전과 세작의 화학성분 중 총질소, 엽록소, 유리아미노산, 데아닌, 카페인, 총카테킨과 무기물 중 Na, Mg, Ca, B, Se 함량에 있어서는 차이를 나타내지 않았다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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• pp.75.1-75.1
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• 2013

Atomic layer deposition (ALD) and molecular layer deposition (MLD) are based on sequential, self-limiting surface reactions that produce atomic layer controlled and conformal thin film growth. ALD can deposit inorganic films and MLD can deposit films containing organics. ALD and MLD can be used together to fabricate a wide range of hybrid organic-inorganic alloy films. The relative fraction of inorganic and organic constituents can be defined by controlling the ratio of the ALD and MLD reaction cycles used to grow the film. These hybrid films can be tuned to obtain desirable mechanical, electrical and optical properties. This talk will focus on the growth and properties of metal alkoxide films grown using metal precursors and various organic alcohols that are known as "metalcones". The talk will highlight the tunable mechanical properties of alucone alloys grown using Al2O3 ALD and alucone MLD and the tunable electrical conductivity of zincone alloys grown using ZnO ALD and zincone MLD with DEZ and hydroquinone as the reactants.

• 한국환경보건학회지
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• 제30권2호
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• pp.161-166
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• 2004

The impact of dissolved wastewater constituents on the treatment of synthetic bisphenol A (BPA) solutions was investigated under a variety of reaction conditions. The laccase enzyme from Trametes vesicolor was used for the BPA treatment. The constituents studied included various inorganic salts, organic compounds and heavy metal ions. BPA degradation was inhibited by sulfate, thiosulfate, sulfide, nitrite, and cyanide ions at 25 mg/$\ell$, 100mg/$\ell$, 25 mg/$\ell$ 150 mg/$\ell$, and 2.5 mg/$\ell$, respectively. However, the inhibitive effects of sulfide and sulfite on BPA degradation were diminished by additional aeration to oxidize them. Formaldehyde significantly reduced the rate of BPA degradation at 1.0% among organic compounds studied. Among heavy metal ions tested, Fe(II) substantially suppressed BPA removal at 1 mM. MgCl$_2$ and CaCl$_2$ exhibited great inhibition of BPA degradation at 25mM.

• 아시안잔디학회지
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• 제9권4호
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• pp.331-342
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• 1995

An investigation was performed to reveal the removal rates of organic constituents of the litters in a Phragmithea longivalvis grassland in a Delta of the Nakdong River, The removal rates of the inorganic and organic materials are determined by the mathematical models. The removal rates and time required to decay up to a percentage of each organic constituent were calculated using these new models. The removal rates of cold water soluble fractions, other carbohydrates, hot water soluble fractions, cellulose, crude fat, lignin and crude protein were 2.67, 1.39, 1.25, 1.02, 0.92, 0.49 and 0.47, respectively, The periods required to reach half time to the steady state of the removal and accumulation for cold water soluble fractions, other carbohydrates, hot water soluble fractions, cellulose, crude fat, lignin and crude protein of the litter were 0.26, 0.50, 0.55, 0.68, 0.75, 1.41 and 1.48 years, respectively.

• 미생물학회지
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• 제19권1호
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• pp.23-30
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• 1981

1.Each cells homogenized from Undaria were reacted in reaction micture to persue the phosphate metabolism in Undaria cell. Aliquots of the cells were taken out at the begin-ning and at intervals during the reaction, and analyzed for the content of total-P in various fractions of the cell constituents. 2.The P-contents in fraction of polyphosphate "B" decreased remarkably, while that in fraction of RNA polyphosphate "C" showed slow increase. 3.As well as in Chlorella cells, inorganic phosphates in DNA-P, protein-P, and lipid-P were transferred from polyphosphate, RNA-P turnovered from inorganic phosphate that is in cytoplasm, and RNA polyphosphate complex from polyphosphate, and it was suggested that inorganic phosphates in polyphosphate "B" could transformed into polyphosphate "A" & "C", and polyphosphate "C" into polyphosphate "A".