• 한국지하수토양환경학회지:지하수토양환경
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• 제25권4호
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• pp.7-13
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• 2020

In this study, a stabilization method was applied to stabilize heavy metals in soils collected from a domestic contaminated area and a Canadian mine site. The stabilizing agent used in the experiment was a solidifying agent developed by KERT Co., Ltd., Korea. The agent was applied to the samples at varying weight ratios of 0, 2, 5, 7, and 10% (w/w). and the concentrations of heavy metals in the effluent were monitored at predetemined time intervals. The results indicated that the stabilization efficiency of heavy metals (Cd, Cu, Pb) increased proportionally until the agent was increased to 5%, which showed almost no leaching of heavy metals after 28 days after agent application. Therefore, addition of 5% relative to soil mass was proposed to be the optimum dose for the stabilization agent.

• 한국세라믹학회:학술대회논문집
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• 한국세라믹학회 2000년도 추계총회,초청강연,특별강연,연구발표회
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• pp.60.2-60
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• 2000

• Journal of Pharmaceutical Investigation
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• 제27권1호
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• pp.23-27
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• 1997

To investigate the effect of L-arginine as stabilizing agent for omeprazole, the degradation rate constant of omeprazole in aqueous solution was determined at 30, 40 and $50^{\circ}C$ with various ratios of L-arginine to omeprazole. The pH of omeprazole solutions was also determined. As the amount of L-arginine increased, the pH of omeprazole solution also increased, and the solution appeared to be more stable. The omeprazole in aqueous solution could be stabilized by more than 15:1 molar ratio of L-arginine to omeprazole. The stability of omeprazole in commercial products using L-arginine or sodium phosphate dibasic as stabilizing agent was investigated. Among the commercial products, the omeprazole product prepared with L-arginine (molar ratio of L-arginine to omeprazole, 20:1) was most stable.

• Journal of Pharmaceutical Investigation
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• 제3권3호
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• pp.5-15
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• 1973

The stabilizing effect of promazine hydrochloride injectin was tested by irradiation of sun lamp(5,000 Lux) on their acid solution sealed in ampules under various stabilizers. The result of experimentation on the color change, the remaining proportion and the half life of promazine hydrochloride solution is as follows. 1. Instability of promazine hydrochloride solution is mainly caused by the sunlight and oxygen. 2. The pH range of promazine hydrochloride injection is recommended to $pH\;4.4{\sim}5.2$ 3. The decomposition of promazine hydrochloride by the sunlight is composed of pseudo zero order reaction when It maintains colorless solution. 4. The half life of 0.5% promazine hydrochloride injection was 30 hrs. under sun lamp irradiation, but it was delayed to 84 hrs. by the simple stabilizer and to 175 hrs. by compound stabilizer. 5. The stabilizing effect of promazine .hydrochloride injection adding sod. metabisulfite$(Na_2S_2O_5)$ was most excellent in various simple stabilizers and adding $Na_2S_2O_5$ to nicotinic acid, $Na_2S_2O_5$ to nicotinamide were more excellent than other compound stabilizers.

• 한국지반환경공학회 논문집
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• 제23권1호
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• pp.5-13
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• 2022

In tropical regions, lateritic soil is frequently used in road embankment. However, it is one of the sources of road failure owing to its low strength. Generally, cement and lime are used as stabilizers for lateritic soil, but they are not environmentally friendly. Some studies try to use eggshells, for they are food waste and share the same chemical composition as lime. Previous researchs have shown that eggshell powder could enhance the strength of lateritic soil. This research investigated the effect of particle size of the eggshell powder and the effect of the protein-membrane presence in the eggshell on stabilizing capacity of soil. Through laboratory tests, unconfined compressive strength was examined for various particle sizes. The particle size of eggshell powder ranging between 150 ㎛ and 88 ㎛ was appropriate size that made an excellent stabilizer at 3% concentration. On the other hand, the protein-membrane reduced the stabilizing ability of the eggshell powder when the content of eggshell powder is less than 4% in soil. Numerical analysis of road embankment was performed based on the results obtained in the laboratory tests. It is shown that the eggshell powder has improved the stability of the sub-base of the road embankment.

• 한국분말재료학회지
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• 제29권6호
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• pp.517-522
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• 2022

We investigate the austenite stability in nanocrystalline Fe-7%Mn-X%Mo (X = 0, 1, and 2) alloys fabricated by spark plasma sintering. Mo is known as a ferrite stabilizing element, whereas Mn is an austenite stabilizing element, and many studies have focused on the effect of Mn addition on austenite stability. Herein, the volume fraction of austenite in nanocrystalline Fe-7%Mn alloys with different Mo contents is measured using X-ray diffraction. Using a disk compressive test, austenite in Fe-Mn-Mo alloys is confirmed to transform into strain-induced martensite during plastic deformation by a disk d. The variation in austenite stability in response to the addition of Mo is quantitatively evaluated by comparing the k-parameters of the kinetic equation for the strain-induced martensite transformation.

• 한국지반공학회논문집
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• 제24권11호
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• pp.5-16
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• 2008

국내현장에서 수집된 9개소 안벽구조물의 측방이동 실측자료에 대한 분석을 통해 연약지반상 안벽의 측방이동을 평가할 수 있는 방안을 제안한다. 잔교식 안벽 등과 같이 말뚝이 시공되어 있는 호안 안벽구조물의 측방이동 가능성을 효과적으로 판정하기 위해서는 말뚝의 사면안정 기여효과를 반영한 사면안정해석을 수행해야 하며, 측방이동을 방지하기 위해서는 말뚝의 사면안정효과 고려시 최소 1.6 이상의 사면안전율을 확보하여야 한다. 한편, 케이슨식 안벽과 같이 말뚝이 시공되지 않은 연약지반상 호안구조물의 안정을 위한 소요 사면안전율은 1.3 이상으로 규정하는 것이 바람직하다.

• 한국산학기술학회논문지
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• 제12권3호
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• pp.1244-1252
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• 2011

본 연구의 목적은 슬링을 이용한 편마비 환자의 체간-골반 안정성 집중훈련 시 체간의 근활성도 및 균형능력에 미치는 효과를 알아보고자 하였다. 6개월 이상에서 1년 된 편마비로 진단 받은 입원 환자 20명을 대상으로 무작위 추출하여 두 그룹으로 나누었다. 실험은 4주간, 주 5회, 1회당 30분간 운동치료를 시행하였고, 대조군(n=10)은 일반적 운동훈련만 적용하였고, 실험군(n=10)은 일반적 운동훈련 및 슬링을 이용한 체간-골반 안전성 집중훈련을 실시하였다. 훈련 효과를 알아보기 위해 훈련 전 후에 체간조절능력, 근활성도, 균형능력을 각각 측정하였다. 훈련 후, 유의한 차이는 실험군에서 체간조절능력(TIS)(p<.001), 특히, 정적조절능력(p<.05), 동적조절능력(p<.01), 협응능력(p<.05), 근 활성도는 RA(p<.001), EO(p<.001), ES(p<.001), Multifidus(p<.05), FMA (Balance)(p<.01), MTD-Balance에서는 정적(p<.001), 동적균형능력(p<.001) 모두 각각 유의한 차이를 보였다. 이로써 슬링을 이용한 체간-골반 안정성 집중훈련은 체간의 근활성도와 균형능력 향상에 효과적인 치료임을 증명하였고, 균형에 있어서 체간-골반 안정화 및 조절의 중요성을 확인할 수 있었다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2001년도 추계학술발표대회
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• pp.886-889
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• 2001

C-terminus specific immobilization often results in a increased structural stability resistant to various denaturation factors. In order to elucidate the immobilization effect on the c-terminus in molecular level, we made over 200 protein data set from Protein Data Bank(PDB), analyzed c-terminus structure of each protein, and investigated the structural relationship with the stabilizing factors such as hydrogen bond, ion pairs, cation pi, disulfide bond, solvation free energy, surface area, flexibility and so on.

• 한국생물물리학회:학술대회논문집
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• 한국생물물리학회 1998년도 학술발표회
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• pp.24-24
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• 1998

The effect of stabilizing single ammo acid replacements at the sites of Phe 51, Ala 70, and Met 374 on the folding of $\alpha$$_1$-antitrypsin was investigated by fluorescence spectroscopy. The residues Phe 51 and Met 374 are located in the hydrophobic core of the molecule, B $\beta$-sheet.(omitted)