칼슘알긴산비드에 의한 염분의 흡착특성

방병호,서정숙 한국식품영양학회 2002 韓國食品營養學會誌 Vol.15 No.2

Ca-alginate bead로 소금의 흡착에 미치는 영향조건을 검토한 결과는 다음과 같다. Ca-alginate beads 에 의한 소금 흡착은 시간이 경과함에 따라 증가하였으며, 10분 후 4.0g으로 최고의 흡착량을 나타내었다. 0.2M CaCl_2, 0.2M BaCl_2, 0.2M FeCl_3 및 0.2M MgCl_2 등의 경화용액으로 조제한 bead에 의한 소금 흡착량은 Fe-alginate beads가 5.6g으로 제일 높았으나 bead가 쉽게 부서지는 단점이 있었고, MgCl_2 용액으로는 bead가 만들어지지 않았다. 그리고 0.2M CaCl_2 경화 용액이 0.1M, 0.2M 및 1M일 때 소금 흡착량은 각각 4.8g, 4.2g 및 4.1g으로 나타났다. Alginate의 농도를 0.6%, 1% 그리고 2%로 하여 제조한 비드로 소금 흡착량은 2.8g, 4.0g, 4.4g으로 각각 나타났으며, 그리고 bead의 크기를 각각 2.5mm, 3.5mm 그리고 4.5mm로 제조하여 소금의 흡착량을 살펴본 결과 각 크기별 모두 4.0 ~ 4.2g로 차이가 없었다. 초기 소금의 농도 4%, 8%, 12% 그리고 16%에서, 각각 소금의 흡착율은 30%, 28%, 27% 그리고 25%이었으며, pH에 따른 염분의 흡착률은 산성 (pH 4.0) 및 중성 (pH 6.8) 영역에서보다는 염기성 (pH 10.0)에서 더 높았다. 된장으로부터 내염성 세균을 분리한 후 alginate로 고정화된 beads와 비고정화한 bead와의 염분 흡착량은 고정화한 bead에 의한 염분 초기흡착속도가 보다 낮았으며, Ca-alginate bead 제조시 경화용액에 머무는 시간이 길수록 염분 흡착률은 감소하는 것으로 나타났다. 또한 1회 사용한 bead를 증류수에 하루 동안 방치 후 이 bead를 재이용함에 따라 염분 흡착량은 점점 감소하였다. 시료를 된장으로 하여 0시간, 3시간, 6시간, 12시간 및 24시간 후 소금 흡착율은 시간의 경과에 따라 더불어 증가하였다. 또한 소금이 감소된 된장의 pH를 측정한 결과, 4.90, 5.00, 5.01, 5.02 그리고 5.03이었으며, 적정산도는 0.1N-NaOH 소모량이 4ml, 3.4ml, 3.2ml, 3.0ml 그리고 3.0ml이었다. 저염 된장의 아미노태 질소를 적정한 결과, 원료 된장이 840mg/된장 100g, 740mg/된장 100g, 630mg/된장 100g, 그리고 530mg/된장 100g으로 줄어들었다. 각 시료별 염분 흡착율은 된장이 다른 시료 (Doengjang 100%, Kochujang 86%, Soysauce 78% and Jeotkal 71%)보다 가장 높게 나타났다. The adsorption characteristics of sodium chloride into Ca-alginate beads have been investigated and the result were as follows: Sodium chloride uptake by Ca-alginate beads increased with time. the highest uptake volume of sodium chloride was 4.2g after 10minutes. The uptake volume by Fe, Ca, Ba, and Sr-alginate beads was 5.6g, 4.2g, 4.2g and 4.0g respectively but in case of Fe-alginate beads, the induced hydrogel beads were very fragile and the strength of Fe-alginate beads were weaker than Ca- and Ba-alginate beads. Mg-alginate bead was not formed and Ca- Ba- and Sr-alginate beads had a similar uptake volume about 4.2g, respectively. The uptake volume of sodium chloride by CaCl_2 concentration (0.1M, 0.2M and 1M), curing solution, was 4.8, 4.2g and 4.1g, respectively. The uptake volume by sodium alginate concentration (0.6%, 1% and 2%) was 2.8g, 4.0g and 4.1g, respectively. The uptake bead size was not effected in uptake sodium chloride. The uptake rate on initial sodium chloride concentration (4%, 8%, 12% and 16%) was 30%, 28%, 27% and 25% respectively. The uptake rate on basic pH (10.0) was higher than when compared to other neutral pH(6.8) and acidic pH(4.0). The initial uptake velocity of sodium chloride from immobilization beads with salt resistant bacteria was lower than that of non-immobilization beads. The uptake rate of sodium chloride was decreased according to elongation of curing time. Reusability of Ca-alginate beads was possible but according to reutilization, the salt uptake volume of beads was also decreased. The uptake volume of sodium chloride from Doengjang by Ca-alginate beads on time course (3, 6, 12, and 24 hour) was revealed 5g, 6g, 7g and 7g respectively. The pH variation in low salt Doengjang and titratable acidity (expressed as milliliter of 0.1N NaOH) on time course (0, 3, 6, 12 and 24 hour) was 4.90, 5.00, 5.01, 5.02 and 5.03 and 4.0ml, 3.4ml, 3.2ml, 3.0ml and 3.0ml , respectively. The amino-nitrogen volume of low salt Doengjang decreased with time (0, 3, 6, 12 and 24 hour) 840mg, 740mg, 630ml, 530mg, 530mg and 530mg, respectively. The uptake rate of sodium chloride in Doenjang was the highest among all sample (Doengjang 100%, Kochujang 86%, Soysauce 78% and Jeotkan 71%).

구조화 전화추적 면담을 이용한 품행장애 입원 치료 환자의 예후

방양원,채정호,문석우,이은회,함웅 대한소아청소년정신의학회 2000 소아청소년정신의학 Vol.11 No.2

연구 목적 : 본 연구의 목적은 입원치료후 퇴원한 품행장애 환자들의 예후와 가족들의 정신과 입원치료의 효능에 대한 인식도를 알아보고 예후에 영향을 미칠 수 있는 요인을 알아보기 위한 것이다. 방법 : 품행장애의 진단 하에 7일 이상 입원치료를 받았으며 퇴원 후 6개월이 경과된 300명 중 전화 추적이 가능하였던 96명에서 퇴원 후 문제행동, 가족관계, 가족들의 인식도를 조사하였으며 이와 관련된 요인을 알아보았다. 결과 : 퇴원 후 문제행동의 양상은 입원전보다 호전된 경우가 90%이었으며 더 심해진 경우는 2%이었으며 8%는 변화가 없었다. 퇴원 후 가족관계는 보다 좋아진 경우가 70%, 나빠진 경우가 2%, 별 차이가 없는 경우가 28%이었다. 병원치료의 효율성에 대한 가족들의 인식도는 도움이 되었다는 경우가 57%, 해가 되었다는 경우가 6%, 그저 그렇다가 37%이었다. 퇴원 후 문제행동, 가족관계, 가족들의 입원치료에 대한 인식도 등 세 가지 항목이 모두 양호하다고 답변한 대상을 양호군으로 설정하고 그 외의 대상을 대조군으로 하여 양군의 특성의 차이를 비교하였을 때 양호군의 연령이 유의하게 낮았으며 가족 형태의 문제가 있었고 MMPI하위척도 중 남성성 -여성성 척도 점수가 유의하게 높았다. 결론 : 비록 본 연구는 여러 제한점이 내포되어 있음에도 불구하고, 정신과 입원치료를 받았던 청소년의 행동이 대부분은 호전된다는 것을 시사하여 품행장애에서의 정신과적 치료에 상당히 고무적인 결과를 나타내었으며 추후 대상자와 치료프로그램의 다양성을 통제한 연구를 지속하는 것이 필요할 것으로 생각되었다. 중심 단어 : 품행장애ㆍ청소년ㆍ예후ㆍ입원치료. Objectives : The major goal of this study was to investigate the treatment outcome of psychiatric treatment in inpatients with conduct disorder and to elucidate factors affecting its prognosis. Methods : We reviewed the medical records of 300 inpatients with conduct disorder who had been treated with a specialized adolescent treatment program. Follow-up structured telephone interview had been performed in 96 patients. Results : 1) At the point of follow-up, 90% of the patients were improved in behavioral patterns, 2% of the patients were worse, and 8% of the patients were unchanged. 2) Intrafamilial relationship was improved in 70% of the patients, worse in 2%, and unchanged in 28%, 3) Fiftyseven percent of families thought to be helped by psychiatric inpatient treatment, 6% replied to be harmed, and 37% thought not to be helpful. 4) Comparing the good prognosis group who were all better in behavioral patterns, intrafamilial relationship, and efficacy of treatment with the rest of subjects, the good prognosis group was significantly younger and had more history of problems in familial structure. Conclusion : Although the present study had some meterological limits, the promising positive results in the outcome of inpatients with conduct disorder encourages further more sophisticated investigations in this problematic psychiatric conditions. KEY WORDS : Conduct disorderㆍAdolescentㆍTreatment outcomeㆍInpatient treatment.

삼각측량 시스템을 이용한 물체의 3-D 정보추출 관한 연구

이호영,김국세,문정환,이철승,방극인,박영옥 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

The 3-D shape use to effect of movie, animation, industrial design, medical treatment service, education, engineering etc... But it is not easy to make 3-D shape from the information of 2-D image. There are two methods in restoring 3-D video image through 2-D image; First the method of using a laser; Second, the method of acquiring 3-D image through stereo vision. Instead of doing two methods with many difficulties, I study the method of simple 3-D image in this research paper. We present here a simple and efficient method, called direct calibration, which does not require any equations at all. The direct calibration procedure builds a lookup table(LUT) linking image and 3-D coordinates by a real 3-D triangulation system. The LUT is built by measuring the image coordinates of a grid of known 3-D points, and recording both image and world coordinates for each point; the depth values of all other visible points are obtained by interpolation.

Diphenylhydantoin이 백서뇌신경세포막의 Na^+, K^+ -ATPase에 미치는 영향

황인방,허강민,이재흔,석정호 충남대학교 의과대학 지역사회의학연구소 1990 충남의대잡지 Vol.17 No.1

To study the effect of diphenylhydantoin on the synaptosomal Na^+ K^+ -ATPase in the rat with Goldblatt kidney, one kidney was removed and renal artery on the other side was partially ligated (external diameter=0.38mm). One kidney was removed in the control group. Synaptosome was prepared from the control and hypertensive rat and ATPase activity (total, EGTA, Azide and ouabain sensitive) was measured in the presence or absence of saponin. The effect of diphenylhydantoin on the synaptosomal ATPase was observed in the presence of diphenylhydantoin and/or ouabain. To investigate the maximal binding of ouabain to synaptosome, ouabain binding study was also carried out. Results as follows: 1. Blood pressure was significantly increased in 1-kidney, 1-clip hypertensive rat. 2. ATPase activity(Total, EGTA and ouabain sensitive) was increased to 2 times in the presence of saponin in the hypertensive and control group. 3. Na^+, K^+ -ATPase activity in hypertensive group was significantly decreased, compared with the control group. 4. Diphenylhydantoin slightly increased the ATPase activity in the control and hypertensive group, but it was not significant. 5. Total activity of ATPase was significantly decreased in the case with dephenylhydantoin and ouabain, but there was not difference between ouabain and ouabain with diphenylhydantoin treated case. 6. In the experiment of oubain binding, diphenylhydantoin did not alter Bmax and Kd of hypertensive and control group. From the above results, it is suggested that diphenylhydantoin will decrease the intracellular sodium without dependence on the stimulation of Na^+, K^+ -ATPase-in hypertensive rat.

구리 지역에서 조사한 고혈압의 인지도, 치료률 및 관리률

홍철호,김순길,홍택원,이제,신진호,이재웅,김경수,김정현,임헌길,이방헌 대한간질학회 2003 대한간질학회지 Vol.9 No.1

병원급식 체계에 관한 조사 연구

이정윤,서정숙,방병호,정은자,강남이,이진영 서울보건대학 1995 서울보건대학 부설 병원경영연구소 논문집 Vol.1 No.1

This study was conducted to evaluate the hospital foodservice management practices in Seoul and to suggest the guideline for the effective foodservice management. Questionnaire survey method were used in this study. Questionnaire were administered to dietitians in twenty hospitals. Data were analyzed for frequency, percentage, χ^(2)-test, and one-way ANOVA using SAS PC Package program. The results were summerized as follows : The number of dietition were less than the required number for efficient foodservice. Centralized foodservice method was adopted in most hospitals and conventional foodservice system was taken in all the hospitals. The space of a kitchen and a dining room were confined and sanitary facilities and working condition revealed problems. Equipped facilities in surveyed foodservice operations were assessed as the insufficient condition, especially, efficient facilities such as a cutting machine were scarecely make up.

만성 심부전환자의 혈액에서 측정한 Tumor necrosis factor-α 및 Interleukin-6의 임상적 의의

김명구,김성구,박상호,한대희,강진환,변정득,심규혁,최병조,방덕원,온영근,현민수,권영주 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2

Background and objectives: Many conditions are responsible for the pathophysiology and progressive mechanisms of congestive heart failure. More recently, it has also become evidence that another class of biologycally activated molecules generically reffered to as cytokine these are also over expressed in congestive heart failure. Therefore, the purpose of this study was to measure concentrations of tumor necrosis factor-α(TNF-α), interleukin-6(IL-6) in mild to severe symptoms of heart failure and compare their values with those found in normal control and analysed correlation relationship between cytokine level, clinical findings and hemodynamic indicies. Subjects and Methodology: Levels of TNF-α and IL-6 were measured on pulmonary artery during cardiac catheterization in heart failure patients(n=32) and normal subjects(n=8) as well as physical examination and echocardiogram. Cytokines assay were performed on plasma using commercially available ELISA(Enazyme-Linked Immunosorbent Assay) kits. Results: Although the levels of TNF-α and IL-6 tend to increase in congestive heart failure group, the cytokines level was not made significantly statistical difference between congestive heart failure group and controls. When analyzing the correlation between the levels of PCWP(pulmonary capillary wedge pressure) and cytokines(TNF-α, IL-6), respectively, there were statistically significant correlation coefficient 0.32,(p<0.05), 0.39(p<0.01). The cytokine IL-6 and pressure of pulmonary artery were significant correlation.(correlation coefficient 0.36, p<0.02) More significantly, there was correlated with TNF-α and IL-6.(correlation coefficient 0.57, p<0.001) Conclusions: There was tended toward high concentration of TNF-α & IL-6 in congestive heart failure and significant difference for PCWP between TNF-α & IL-6, thus may be correlated with development and progression in congestive heart failure.

'1998 한국인 우울증 선별의 날' 참가자들의 사회인구통계학적 특성과 우울증 선별검사 결과

한상익,이성필,고효진,박원명,장계호,유태열,전태연,채정호,방승규,김광수,최보문,이정태,백인호 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5

연구목적 : 1998년 정신건강의 날 기념 한국인 우울증 선별의 날 행사에 자발적으로 참여한 참가자들의 사회인구 통계학적 특성을 분석하고 우울증 선별검사 결과를 평가하기 위하여 본 연구를 시행하였다. 방 법 : 8개 병원에서 얻어진 619명의 자료를 사용하여 선별검사로 밝혀진 우울증의 유병율과 사회인구통계학적 특성 및 응답자의 정신과적 치료를 포함한 과거력 등을 조사하였다. 결 과 : 우울증 척도 점수는 응답자 전체 평균 57.5±13.8로 경도의 우울 증상이 있는 것에 해당되었다. 전체 응답자의 69.5%(430명)가 최소한 경도 이상의 우울 증상을, 43.1%(267명)가 중등도 이상의 우울 증상을, 18.4%(114명)가 고도의 우울 증상을 보였다. 고도의 우울 증상이 있는 응답자의 56.8%와 중등도의 우울 증상이 있는 응답자의 63.9%가 정신과 치료를 받은 적이 전혀 없었다. 나이가 29세 이하인 것과 전임근무 중인 직업상태는 각각 나이가 60세 이상인 것과 직업이 없는 것에 비교하여 우울증으로부터 보호하는 인자임을 시사하였다. 결 론 : '1998 한국인 우울증 선별의 날' 행사를 통하여 많은 우울증 환자들을 선별해낼 수 있었고, 이들의 우울 증상은 몇몇 사회인구통계학적 특성과 유의한 관계가 있음을 확인하였다. 우울증 선별의 날 행사를 통한 우울증에 대한 교육과 우울증 선별검사는 치료받지 못하고 있는 우울증 환자 및 기존의 치료 중인 환자 모두에게 유용한 프로그램임을 알 수 있었다. Objectives : This study was performed to analyze the sociodemographic characteristics of participants in '1998 Korean Depression Screening Day' and to evaluate the results of the screening test. Methods : By using the survey results of 619 volunteers from 8 hospitals, the authors examined the prevalence of depression detected at the screening test and sociodemographic characteristics and the psychiatric treatment history of respondents. The assessment measure was the Zung Self-Rating Depression Scale. Results : The mean depression score of all participants was 57.5±13.8 and it came under mild depression. Of all participants, 69.5%(N=430) had at least mild depressive symptoms, 43.1%(N=267) had at least moderate symptoms, and 18.4%(N=114) had severe symptoms. Never have 56.8% of respondents in the severely depressed range and 63.9% of those in the moderately depressed range had psychiatric treatment. The results suggest that the age group of 29-year-old or younger(relative to 60-year-old or older group) and full-time employment status(relative to unemployment) are protective factors of depression. Conclusions : By '1998 Korean Depression Screening Day', many depressed patients were detected and their depressive symptoms had statistically significant relationships with some sociodemographic characteristics. The results suggest that the education and screening test programs for depressive illness facilitated by Depression Screening Day are useful to the patients regardless of being under current treatment or not.

Molecular typing of Prototheca zopfii isolated from bovine mastitic milk samples in Korea

Ho Sung Park(Ho Sung Park),Su Jeong Kim(Su Jeong Kim),Geum-Chan Jang(Geum-Chan Jang),Bang-Hun Hyun(Bang-Hun Hyun),Suk-Kyung Lim(Suk-Kyung Lim),Dong Chan Moon(Dong Chan Moon) 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-

The Effect of the Addition of Ti Metal Fiber and Al-Mg Alloy Binder on the Mechanical Properties of Al-Si/SiCp Metal Matrix Composites Fabricated by Powder Metallurgy

( Jeong Il Bang ),( Jeong Jung Oak ),( Young Cheol Lee ),( Kwang Hyo Jung ),( Yong Ho Park ) 대한금속재료학회(구 대한금속학회) 2016 대한금속·재료학회지 Vol.54 No.6

The aim of this study was to reinforce Al-Si/SiCp metal matrix composites (MMCs), which have homogeneous microstructures, by adding the Ti fibers and the Al-Mg powder. The Al-Si/SiCp MMC powder was fabricated by gas atomization for homogeneous distribution of the SiC particles. The Ti fibers were mixed with the Al-Si/SiCp MMC powder to structurally reinforce and enhance the interfacial bonding force between the Al-Si matrix and the Ti fibers. The Al-Mg powder was added as a binder to promote liquid phase sintering and to remove the oxide layer on the Al-Si/SiCp MMC powder. The Al-Si/SiCp system had homogeneous microstructures without any clustering of the SiC particles. The Ti fibers formed a diffusion layer at the interface of the Al-Si matrix and the Ti fibers. By adding the Ti fibers, the ultimate tensile strength and elongation increased from 194 to 234 MPa and from 6.2% to 7.6%, respectively. The Al-Mg powder liquefied during sintering and filled the pores between each particle, but the toughness of the Al-MMC decreased. (Received November 2, 2015)