苛性소다 處理가 볏짚의 나이론주머니 消化率에 미치는 영향

辛炯泰,金永玉,魏筍英 成均館大學校 1980 論文集 Vol.28 No.-

Four Korean native male goats, weighing approximately 30㎏ each, were equipped with rumen cannulas to study the effect of different levels of NaOH treatment, of rumen incubation time and of different kinds on "nylon bag dry matter digestibility (NBDMD,%)" and "nylon bag organic matter digestibility (NBOMD,%)" of rice straws. The goat was housed individually in pen and was fed 600 grams (concentrate) daily, and fed rice straw and rincal blocks ad libiltum. Three grams of dried samples by grinding with 2.45㎜ Wiley mill screen were put into a bag 9 X 14 ㎝ made of 100 mesh nylon. These bags were put into the ventral sac of the rumen and taken out at the end of 24, 48 and 72 hours (Experiment 1) and 72 hours only (Experiment 2). They were washed, dried in an oven at 105℃ for 24 hours and weighed "NBDMD", and ashed in an muffle furnance at 600℃ for 2 hours and weighed "NBOMD". The results which were obtained with two experiments were as follows; 1. Nylon bag dry matter digestibility (NBDMD,%) and nylon bag organic matter digestibility (NBOMD,%) of NaOH treated straws were highly significant different (P<0.01) in different levels of NaOH treatment, of rumen incubation time and of different kinds of rice straws. 2. The relationship between mean NBDMD (%, Y_1) of 5 kinds of rice straws and NaOH concentration (%, X_1) at 72 hours rumen incubation was: Y_1=2.93X_1+42.32(r=0.97^**) 3. The relationship between mean NBOMD (%, Y_2)of 5 kinds of rice straws and NaOH concentration (%, X_1) at 72 hour rumen incubation was: Y_2=2.76X_1+41.32(r=0.96^**) 4. The orders of NBDMD (%) and NBOMD (%) for 5 kinds fo rice straws were Yooshin, Suwon 264, Milyang 23, Tongil and Akibre. Therefoare it is necessary to study more on the utilization of NaOH-treated new-bred rice straws for animal performance than old-bred rice straw as Akibare. 5. The optimal level of NaOH (%) for improving NBDMD and NBOMD from 5 kinds of rice straw on the basis of Dr. McCullough's theory was as follow: 6% NaOH for Yooshin, Suwon 264 and Milyang 23; 7% NaOH for Tongil and 8% NaOH for Akibare. 6. Crude protein, crude fiber, ADF, cellulose, lignin percent of 5 rice straws did not much different by chemical analysis. The orders of NBDMD (%) and NBOMD (%) for 5 kinds of rice straws did not same orders of the consitituents of chemical composition in rice straws.

成人 腎症候群의 臨床的 硏究

辛榮泰 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

A clinical study was performed on 66 patients with idiopathic nephrotic syndrome who were admitted to Department of Internal Medicine, Chungnam National University Hospital from May 1981 to Oct. 1986. The results were as follows. 1. The ratio of male to female was 2.1:1. In young age group, minor change was the most predorminant type. In old age group, membranous glomerulopathy was predorminant type. 2. By histologic classification, minor change was 37.9%, membranous glomerulopathy 27.3%, focal glomerulosclerosis 11.7%, membranoproliferative glomerulonphritis 9.1%,m mesangial proliferative glomerulonephritis 4.5% and chronic sclerosing glomerulopathy 4.5% respectively. 3. The serum creatinine concentration of membranoprliferative glomerulonephritis was significantly elevated. 4. The serum C_3 and C_4 concentration of membranoproliferative glomerulonephritis was significantly depressed. 5. Serum IgG concentrations were depressed in 87.2%, serum IgA concentraions were within normal limit in 84.6% and serum IgM concentrations were elevated in 59% of the patients. Serum IgE concentrations were elevated in 8 patients out of 13 patients. 6. HBsAg were positive in 10 patients (15.2%) out of 66 patients.

消石灰處理가 볏짚의 粗成分 및 消化率에 미치는 影響에 관한 硏究

辛炯泰,魏筍英,金永玉 成均館大學校 1981 論文集 Vol.29 No.-

Nylon bag dry matter digestibility (NBDMD, %), nylon bag organic matter digestibility (NBDMD, %) and chemical compositions were analysed to evaluate the nutritive values of 5 varieties of Ca(OH)_2-treated rice straws (Akibare, Tongil, Milyang 23, Yooshin and Suwon 264) by using Korean native male goats. Three grams of dried samples by grinding with 2.45㎜ Wiley mill screen were put into a bag 9×14 ㎠ made of 100 mesh nylon. These bags were put into the ventral sac of the rumen and taken out at the end of 72 hours. They were washed, dried in an oven at 105℃ for 24 hours and weighed "NBDMD" (%) and ashed in an muffle furnace at 600℃ for 2 hours and weighed "NBOMD" (%). The results which were obtained with this experiment were as follows : 1. Nylon bag dry matter digestibility (NBDMD, %) and nylon bag organic matter digestibility (NBOMD, %) of Ca(OH)_2-treated rice straws were highly significant different (p<0.01) in different levels of Ca(OH)_2 treatment and of different varieties of rice straws. 2. The relationship between total mean NBDMD (%, Y_1) of 5 varieties of rice straws and Ca (OH)_2 concentration (%, X) at 72 hours rumen incubation was : Y_1=1.51X+41.36 (r=0.97^**) 3. The relationship between total mean NBOMD (%, Y_2) of 5 varieties of rice straws and Ca(OH)_2 concentration (%, X) at 72 hours rumen incubation was : Y_2=1.36X+41.02 (r=0.95^**) 4. The orders of NBDMD (%) and NBOMD (%) for 5 varieties of rice straws were Yooshin, Suwon 264, Milyang 23, Tongil and Akibare, and Yooshin showed the highest values and Akibare showed the lowest values. Crude fiber, cell-wall constituents and lignin percent in the five varieties of rice straws were shown the negative relation to the NBDMD (%) and NBOMD (%).

한국형출혈열의 血液像에 관한 연구

신영태,김민범,이정호,김상용 충남대학교 의과대학 지역사회의학연구소 1988 충남의대잡지 Vol.15 No.2

To elucidate the hematologic alterations in Korean hemorrhagic fever(KHF), hemoglobin concentration, reticulocyte percent, platetet count, fibrinogen concentration, fibrin degradation product(FDP), prothrombin time(PT) and partial thromboplastin time(PTT) were measured in 27 patients with KHF who were admitted to Chungnam National University Hospital from Oct. 1986 to Sept. 1988. The results were as follows 1. 19 patients(70.4%) out of 27 patients with KHF revealed petechial hemorrhage on axilla and soft palate. UGI bleeding, epistaxis and gross hematuria were also observed in 2, 2 and 2 patients, respectively. 2. In early phase of KHF, hemoglobin concentration showed normal in 21 patients (77.8%), reduced in 5 patients (18.5%)'and elevated in 1 patient. In late phase of KHF, it showed normal in 16 patients(59.3%) and reduced in 11 patients (40.7%). 3. Reticulocyte percent was significantly lower in early phase than late phase of KHF. 4, In early phase of KHF, peripheral blood leukocyte count was elevated in 23 patients(81.2%). In late phase, it became to normal in most patients. 5. In early phase of KHF, peripheral blood platelet counts was decreased in 24 patients (88.9%). In late phase, it became to normal in most patients. 6. In early phase of KHF, fibrinogen concentration was decreased in 3 (13.6%) out of 22 patients. In late phase it became to normal in all patients. FDP showed increased in 9 (40.9%) out of 23 patients in early phase of KHF and 2 (18.2%) out of 11 patients in late phase of KHF 7. PT showed normal range in all patients of early and late chase of KHF. In early phase, PTT was prolonged in 7 (29.2%) out of 24 patients and it became to normal in late phase of KHF.

혈청 HBsAg 양성인 사구체신염의 임상상 및 신조직 소견

신영태,구영선,강민규,황평주,김종학,이강욱,서광선 충남대학교 의과대학 지역사회의학연구소 1999 충남의대잡지 Vol.26 No.1

Hepatitis-B-associated glomerulonephritis is one of the immunologically mediated disorders associated with chronic Hepatitis B virus(HBV) infection. The frequency of HBsAg infection has been high in East Asia and it is one of the most important etiologic factors of the secondary glomerulonephritis. We reviewed the clinical and pathologic features of 29 patients with glomerulonephritis and HBs antigenemia, who were admitted to Chungnam National University Hospital from January 1988 to Febuary 1999. The results were as follows : 1) The average age of the patients was 33.8±10.4(mean±SD) and male to female ratio was 3.8. Proteinuria was present in 27 patients(93%), hematuria in 20 patients(69%) and hypertension in 17 patients(59%). Two patients(7%) manifested with renal insufficiency and 8 patients(28%) with nephrotic syndrome. 2) Renal pathology revealed membranous nephropathy(41%), membranoproliferative glomerulonephritis(21%), mesangial proliferative glomeulonephritis(21%), minimal change nephritis (14%) and focal segmental glomerulonephritis(3%). 3) The pathologic findings of liver were chronic active hepatitis(68%), chronic persistent hepatitis(38%) and liver cirrhosis(8%). 4) During the follow-up period(average:49.4 months), 7 patients(68%) presented persistent proteinuria, 5 patients(21%) progressed to renal failure and 2 patients(8%) resolved clinically. 5) The treatment was done with prednisolone to 3 patients, and with alpha-interferon to 3 patients. One patient treated with prednisolone resolved clinically, but this resolution did not coincide with disappearance of the hepatitis B antigens.

蛋白質 供給源이 흰쥐의 成長 및 窒素均衡에 미치는 影響

辛炯泰,金永玉 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.1

This experiment was conducted to study the effect of protein supplementation to rice diet on growth, digestibility, nitrogen balance and nitrogen retention by growing rats. The experimental diets were consisted of rice diet (no supplementation of protein, I), soybean meal diet (II ), casein diet (III), fish meal diet (Ⅳ), lysine+threonine diet (V), 1/2 soybean meal+1/2casein diet (Ⅵ), 1/2 soybean meal+1/2fish meal diet (VII). Experiment was undertaken with 42 weanling male rats of Sprague-Dawley strain for 3 weeks and they were evenly divided by 7 treatments, respectively and feeds and clean water were available ad libitum. For the experimental period, body weight gain, feed intake, feed efficiency ratio, protein efficiency ratio, digestibility (dry matter, organic matter, crude protein), nitrogen balance and nitrogen retention were measured to evaluate the nutritional effects of protein sources. Some results which were obtained with this experiment as follows: 1. The average daily body weight gain for growing rats fed experimental diets(I-VII) were 0.95g, 2.03g, 2.97g, 3.27g, 2.48g, 2.71g, 2.77g, respectively. The highest body weight gain was fish meal diet (IV) and the lowest was sodbean meal diet (II). And the other diets ( III , V,Ⅵ,VII) showed similar weight gains. 2. Feed efficiency ratio (FER) was higher for fish meal diet (IV) and casein diet (III) than the other diets. And feed efficiency ratio of the other diets were similar. 3. Protien efficiency ratio (PER) followed the same pattern as the feed efficiency ratio. 4. Digestibilities of dry matter and organic matter were for casein diet (III) of 94.07%, 96.01%, respectively and soybean meal diet (II) of digestibilities of dry matter and organic matter 91.59%, 93.98% respectively. Protein digestibility showed the same pattern as the protein efficiency ratio. 5. The nitrogen balance and nitrogen retention of fish meal diet (Ⅳ) were higher than those of the rest of diets and soybean meal diet (II) was shown the lowest values. 6. As studies with rice diets by growing rats, protein supplementation to rice was superior to unsup plemented diet in performance, nitrogen balance and nitrogen retention. To compare the nutritional values of protein sources in this experiment, fish meal and casein as animal protein sources showed the highest performance, nitrogen balance and nitrogen retention. Combined animal protein and plant protein and lysine+threonine supplementation were the middle (performance, nitrogen balance and nitrogen retention) and soybean meal as plant protein showed the least (performance, nitrogen balance and nitrogen retention).

전신성 홍반성 낭창의 임상적 고찰

신영태,이정호,신승훈,이강욱 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.2

To elucidate the clinical feature and clinicopathologic correlation of systemic lupus erythematosus(SLE), the authors analized symptoms and signs, laboratory findings and kidney pathology in 25 patients with SLE who were admitted to the Department of Internal Medicine, Chungnam National University Hospital from My 1985 to October 1989. Kidny biopsy was performed in 15 patients out of 19 patients who showed lupus nephritis. The results were as follows: 1. The ratio of male of females was 1:11.5. They were 14 to 53 years old and mean age was 30.2 years old. The peak age incidence was 3rd and 4th decades. 2. The most frequent chief complaint on admission was fever and chills. Most patients had two or more symptoms such as arthralgia, malar rash, generalized edema or weakness. 3. In 84% of the patients, duration from onset of the disease to diagnosis of SLE was longer than 1 month, which suggested that diagnosis of SLE is not easy in early stage of SLE. 4. The positive anti -DNA was the most frequently observed ARA criteria of SLE. And positive ANA, malar rash, persistent proteinuria, leukopenia, positive LE cell preparation, arthritis and oral ulcer were observed in order of frequency. 5. The frequent and pertinent general symptoms, not included in ARA criteria were fever and chills, arthralgia and abdominal pain which were observed in more than half of the patients. 6. On immunologic test, serum concentrations of C3 and C4 were decreased in 96% of the patients, serum concentration of Ig G, Ig A were increased in 65%, 36.8% and 26.3% of the patients respectively. The RA test was positive in 25% of the patients. 7. Lupus nephritis represented 76% of all SLE patients and pathological classification on 15 patients with lupus nephritis revealed class IV lupus nephritis in 9 patients(60%), class II n 3 patients (21%), class V in 2 patients(13.3%) and class III in 1 patient. 8. 7 out of 9 patients with class IV lupus nephritis and 1 out of 2 patients with class V lupus nephritis showed nephrotic syndrome. Progressive azotemia were observed in 3 out of 9 patient with class IV lupus nephritis and in 1 out of 2 patients with class V lupus nephritis. There were no nephrotic syndroms or azotemia in class II and class III lupus nephritis. 9. Of 17 patients who can be followed up, 9 patients were improved, 5 patients became progressive azotemia and 3 patients resulted in death. The causes of death were myocarditis with pericarditis in 1 patients, pneumonia with acute respiratory failure in 1 patient and CNS involvement of SLE in 1 patient.

유한요소해석에 의한 절대코일 와전류 신호의 임피던스 평면도 작성

신영길,이윤태,이정호,송명호 한국비파괴검사학회 2004 한국비파괴검사학회지 Vol.24 No.4

와전류 탐상에서 차동형 탐촉자는 신호에 영향을 미치는 변수들을 줄일 수 있어 흔히 사용된다. 그러나 차동신호는 인접한 두 코일의 임피던스 차이를 신호로 사용하기 때문에 신호예측이나 해석이 쉽지 않다는 단점이 있다. 반면에 절대코일에 의한 신호는 상대적으로 형태가 단순하므로 신호예측이나 해석이 더 수월하다. 따라서 서로의 장, 단점을 상호보완적으로 사용하면 검사 신뢰도를 향상시키는데 큰 도움이 될 것이다. 본 논문에서는 인코넬 평판과 튜브에서 절대코일 신호를 예측하기 위하여 유한요소해석을 수행하였고, 리프트 오프, 충전율, 전도도, 탐상 주파수, 피검사체의 두께, 내, 외부 결함 등이 신호에 미치는 영향을 계산하여 임피던스 평면도로 작성하고, 신호특징을 분석하였다. 그 결과, 절대신호에 대한 많은 실용적인 지식을 축적할 수 있었고, 절대신호와 차동신호 특성의 유사성을 이해하게 되었으며, 결함깊이와 주파수 변화에 따른 신호의 기울기를 대응곡선 그래프로 작성할 수 있었다. In eddy current testing(ECT), differential probes have been frequently used since they can reduce the number of parameters that influcence ECT singles. However, differential signal is actually the difference of the two coil's impedance so that signal prediction and interpretation are not easy. On the other hand, absolute coil signal is rather straightforward to predict and analyze. Therefore, combined use of the two types of signals would increase the test reliability. In this paper, absolute coil signals from Inconel plate and tubes are predicted by the finite element analysis and effects of lift-off, fill-factor, conductivity, operating frequency, test specimen thickness, inner diameter defects, and outer diameter defects are investigated. As a result, various impedance plane diagrams are drawn and analyzed. Significant practical knowledge about absolute signals is accumulated and similar characteristics of the two types of signal could be understood. Finally, slope angle versus defect depth calibration curves are prepared for three different frequencies.

신증후군의 혈청 면역글로부린 농도에 관한 연구

辛榮泰 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.2

To evaluate the alterations of serum immunoglobulin concentrations in various pathologic types of idiopathic nephrotic sgndrome, serum concentrations of IgG, IgA, IgM and IgE were measured in 47 adult nephrotic syndrome who were admitted to Department of Internal Medicine, Chungnam National University Hospital from April 1982 to October 1987. The results were as follows 1. Serum IgG conceptions were depressed in most patients with nephrotic syndrome and correlated well with various parameters of nephrotic syndrome; with serum protein concentrations in MC(r=0.61, p<0.05); with serum cholesterol concentrations in MG(r=-0.54, p<0.05) ; with serum protein and cholesterol concentrations in MPGN(r=0.88, p<0.05 and r= -0. 89, p<0.05, respectively) 2. Serum IgA concentrations were within normal limit in most patients. 3. Serum IgM concentrations were elevated in 8 patients out of 20 patients with MC, 3 patient out of 15 patients with MG and 2 patients out of 4 patients with FGS. Those of the remaining patients revealed within normal limit or slightly decreased level. 4. Serum IgE concentrations were elevated in 6 patients out of 12 patients with MC and 3 patients out of 4 patients with MG.

大麥 및 白米 混合粉의 營養價値 硏究 : 第1報 보리의 搗精收率에 따른 營養價値 比較 硏究 Ⅰ. A Study on Some Nutritional Effects of Milling Recovery of Barley by Rats

辛炯泰,金永玉,具明子 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2

This experiment was conducted to observe the nutritional effects of milling recovery of barley (MRB) on the performance and digestibility by rats. Experiment was undertaken with 48 weanling male rats of Sprague-Dawley strain and they were evenly divided by 6 treatments, respectively, and feed and clean water were available, ad. libitum. In this experiment, the diets were consisted of corn starch+casein as control diet, 100%, 90%, 80%, 70% and 60% of MRB diet as experimental diets. For the experimental period, body weight gain(g), feed intake(g), feed efficiency ratio, protein efficiency ratio and digestibility (dry matter, organic matter, crude protein ; %) were measured to evaluate the nutritional effects of MRB diets for rats. The results which were obtained with this experiment as follows: 1. Average daily gain for 90%, and 100% MRB was 0.42g and for 70% MRB was 0.04g. And the differences between 80%, 90% and 100% MRB treatments and 70% and 60% MRB were significantly different(p<0.01). 2. Average daily feed intake was lower for 70% MRB of 3.41g and to increase the level of MRB tended to improve the feed intake, which followed the same pattern as the growth data. 3. Feed efficiency ratio was lower for 70% MBR of 0.01 and protein efficiency ratio was lower for 70% MRB of 0.15. 4. The range of dry matter digestibility was from 92.81% to 93.18%, organic matter digestibility was from 93.17% to 93.63% and protein digestibility was from 80.22% to 65.96% in 90%, 80%, 70% and 60% MRB, respectively. But there were no significant differences in dry matter, organic matter or protein digestibilities of experimental diets(p>0.01). And the digestibilities of dry matter, organic matter and crude protein for 100% MRB were significantly different compared with other treatments (p<0.01). So it may be concluded that 90% MRB would be the most nutritious processing method on the basis of feed intake, daily gain and protein metabolism by rats.