아연도금 (亞鉛鍍金) 작업표준

이원해,조만형,이주성 대한금속재료학회 1982 대한금속재료학회 학술대회 개요집 Vol.1982 No.1

방풍나물 분말 첨가 양갱의 품질특성

이원해,유승석,홍기운 (사)한국조리학회 2018 한국조리학회지 Vol.24 No.1

This study developed a new yanggaeng(red bean sweet jelly) by adding Peucedanum japonicum powder from 5% to 20%. It has been evaluated its physicochemical, sensory characteristics and antioxidant activity. The DPPH radical scavenging activity of Peucedanum japonicum powder was 40.53% and the total phenolic compound content was 13.36 mg/100 g. Moisture content of yanggaeng with Peucedanum japonicum powder added 5~15% was 50.24~48.32% significantly higher than in the control group(p<0.05). The hardness of yanggaeng was 2,748.25 g/m2 in control and the PY5 and PY10 were 4,012.05 g/m2 and 4,019.40 g/m2 respectively, significantly higher than control(p<0.05). However, when the amount of Peucedanum japonicum powder was increased by more than a certain rate, it decreased again, as 2,155.39 g/m2 in PY20. As a result of the acceptance test of the yanggaeng, the flavor of yanggaeng with Peucedanum japonicum powder was evaluated significantly higher than control(p<0.05), but PY20 was 5.20 not significantly difference with PY10. The overall acceptance of the yanggaeng showed the lowest value of 4.00 in the control, PY15 showed significantly high value as 7.80(p<0.05). Compared with the control, the acceptance of samples with Peucedanum japonicum powder 5~15% was higher than that of control. It was concluded that 10% and 15% of the Peucedanum japonicum powder could be added for the development of the yanggaeng. According to the above study result, to enhance the utilization of Peucedanum japonicum for developing functional food would be possible, and a new yanggaeng product by adding Peucedanum japonicum would have good potential.

염산용액에서 TBP 에 의한 백금의 용매추출

이원해,김진현 대한금속재료학회(대한금속학회) 1995 대한금속·재료학회지 Vol.33 No.10

A study has been made on the solvent extraction of platinum, one of the platinum group metals, with diluted tri-n-butyl phosphate(TBP). Systems involving hydrochloric acid as extract-promoting agent have been studied in the distribution of platinum(IV) chloride. The distribution coefficient for platinum(IV) chloride goes up through a maximum at just over 6M HCI and 50% TBP in toluene, but decreases at low and high HCI concentration. IL was found that the extracting species has the formula 3TBP·H₂PtCl_6·χH₂O. Unextracted platinum(IV) in the aqueous phase is determined directly and platinum(IV) in the organic phase is stripped with H₂O and determined by stannous chloride method, respectively. In a binary mixture of gold and platinum, the solvent exhibited toward gold that it could be extracted selectively from platinum.

Bismuth 의 전해 정련

이원해,고창식,이승평 대한금속재료학회(대한금속학회) 1971 대한금속·재료학회지 Vol.9 No.1

전해조는 가운데를 cell의 지면에는 닿지않고 Bi-amalgam에만 닿도록 격막으로 막은 두 개의 compartment로 되어 있어서 Bi-amalgam은 자유로이 다닐 수 있으나 전해액은 한쪽에서 다른쪽으로 다니지 못하게 하였다. stirrer로 교반하고 있는 Bi-amalgam의 한쪽은 anode로, 다른쪽은 cathode로 작용 하도록 하였다. refining solution으로 사용한 전해액의 성분은 Bi(ClO₄)와 HClO₄이며, Cathode전류 밀도는 5A-15A/d㎡가 가장 좋았고, 전류 효율은 100%였다. 98% Bi를 사용하여 amalgam refining을 해본 결과 5-9s보다 더 순수한 Bi를 얻을 수 있었다. The electrolytic apparatus was so made as a barrier was immersed in the shallow pool of Bi-amalgam without reaching the cell bottom. Therefore, the Bi-amalgam was permitted to pass freely, but the supernatant solution was not to. The amalgam, agitated with two stirrers, acted as cathode on one side and as anode on the other of the cell. The electrolytes consisting of Bi(ClO₄)₃ and HClO₄ was used as the refining solution. The recommendable cathode C.D. was 5A-15A/d㎡ and the current efficiency was 100%, The amalgam refining by using 98% Bi as anode resulted in obtaining ≥5-9s.

편의점 도시락의 SNS 마케팅 활동이 도시락 브랜드 인지도, 브랜드 이미지, 재구매 의도에 미치는 영향

이원해 경성대학교 산업개발연구소 2024 산업혁신연구 Vol.40 No.2

아연도금 작업표준

이원해,이주성,조만형 대한금속재료학회 1982 대한금속재료학회 학술대회 개요집 Vol.1982 No.0

포도막염 환자의 임상병리학적 연구

이원해 순천향대학교 1992 논문집 Vol.15 No.4

The author conducted a retrospective study of 40 patients with uveitis, ages ranged from 14 to 73, and classified those patients as anterior uveitis, panuveitis and pars planitis. The frequencies of occurence, causes and clinical laboratory tests were compared to those. The results were as follows. 1. Of the 40, 33(82.5%) were anterior uveitis, 3(7.5%) were posterior uveitis, 2(5%) were panuveitis. 2(5%) were pars planitis. Of the 40, 22(55%) were idiopathic, 4(10%) were Behcet's disease, 3(7.5%) were traumatic. 2. Of the 40. 27(67.5%) have positive findings that is one or more among the 12 classes of clinical laboratory tests. 13(32.5%) have negative findings in overall tests. 3. In the roentgenography, 1(2.5%) has positive finding, and 3(7.5%) have positive findings in the routine urinary analysis. 4. In the test of complete blood count, 11(27.5%) showed increased blood count. Neutrophil count was higher in the posterior and panuveitis than in the anterior uveitis and panplanitis. 5. In the test of erythrocyte sedimentation rate, panuveitis showed the highest value, anterior uveitis showed the lowest value in average. 6. 1(2.5%) was positive in teh test of VDRL and FTA-ABS, all were negative in the test of antinuclear antibody test, 2(5%) were positive in teh test of rheumatoid factor. 7. In the Behcet's skin test, 2(5%) were positive, of whom, one was anterior uveitis, 1(33%) with posterior uveitis, 1(50%) with pars planitis. 8. In the test of ELISA, 18(55%) showed positive ratio in the patients with anterior uveitis, 1(33%) with posterior uveitis, 1(50%) with pars planitis. 9. In the test of serum electrophoresis, 1(33%) showed the positive ratio in the posterior uveitis, 1(50%) with panuveitis, 2(6%) with anterior uveitis. 10. All of 12 recurrent cases(30%) had anterior uveitis. Of these patients, 42% showed increased WBC count, while 27.5% showed increased WBC count in the uveitis patients with first attack.

요오드 용액에서 팔라듐의 용해 속도론

이원해,최준철 대한금속재료학회(대한금속학회) 1995 대한금속·재료학회지 Vol.33 No.10

A series of experiments were performed to investigate the kinetics of dissolution reaction between palladium powder and iodide solution. This investigation examined the effects of oxygen, pH, iodide and iodine concentration, initial PdI₄² concentration and temperature on the dissolution of palladium. A half order reaction rate was found with respect to I₃^- and a third order reaction rate with respect to I^-. But the reaction rate was decreased with increasing initial concentration of PdI₄^(2-). The activation energy of reaction was 2.4kJ/mole, which implied that the dissolution reaction was controlled by the diffusion reaction.

수용액에서 Ti(OH)4 및 Fe(OH)3 의 우라늄흡착거동에 관한 연구

이원해,김진현 대한금속재료학회(대한금속학회) 1996 대한금속·재료학회지 Vol.34 No.7

With a view to studying the possibility of separating uranium from aqueous solution by coprecipitation, the carrier properties of ferric and titanium hydroxides were examined. The results obtained were as follows. The values of pH at which uranium started to coprecipitate with the carriers were 3.0 for Ti(OH)₄, 4.0 for Fe(OH)₃ and optimum pH values to obtain maximum recovery of uranium were 6.0∼10.0 for Ti(OH)₄, 6.0∼8.0 for Fe(OH)₄, respectively. It was found that the HCO₃ ion had a negative effect on uranium adsorption when its concentration was higher than 5.0mM. And the relation between equilibrated uranium adsorption and the concentration of uranium in the aqueous solution followed Freundlich's isotherm formula in the region of low concentration. The uranium in the aqueous solution which was not adsorbed was determined by Arsenazo III method.

절도 감정물의 시료 종류 및 채취 방법에 따른 분류와 디엔에이형 검출률 분석

이원해,김주영,김경숙,김초희,김민희,이경명,박명진,정규식,최동호,이경룡,김종진,박기원 한국법과학회 2013 한국법과학회지 Vol.14 No.1