苛性소다 處理에 依한 밀짚의 飼料價値 增進 硏究

辛炯泰,金贊昊,金鍾奭,宋永祿,林泰鎭 成均館大學校 1982 論文集 Vol.32 No.-

Nylon bag dry matter digestibility (NBDMD, %), nylon bag organic matter digestibility (NBOMD, %) and chemical compositions were analysed to evaluate the nutritive values of 5 varieties of NaOH-treated wheat straws (Jangkwang, Wonkwang, Suwon 210, Suwon 211, Naemil) 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℃ or 24 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 NaOH-treated wheat straws were highly significant different (p<0.01) in different levels of NaOH treatment and of different varieties of wheat straws. 2. The relationship between total mean NBDMD (%, Y_1) of 5 varieties of wheat straws and NaOH concentration (%, X) at 72 hours rumen incubation was: Y_1=34.57+3.56X(r=0.92^**) 3. The relationship between total mean MBOMD (%, Y_2) of 5 varieties of wheat straws and NaOH concentration (%, X) at 72 hours rumen incubation was: Y_2=32.02+2.46X(r=0.92^**) 4. The orders of NBDMD(%) and NBOMD(%) for 5 varieties of wheat straws were Suwon 210, Suwon 211, Naemil, Jangkwang, Wonkwang and Suwon 211, Suwon 210, Naemil, Jangkwang, Wonkwang, respectively. 5. The optimum level of NaOH for improving NBDMD(%) from 5 varieties of wheat straws, on the basis of Blaxter et al. (1961), was 6% NaOH.

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.

半夏白朮天麻湯의 生理活性에 관한 硏究

申台容 圓光大學校大學院 1980 學位論叢 Vol.4 No.-

The sedative action of Ban Ha Baick Chul Cheun Ma Tang have been tested with mice. The effect of Ban Ha Baick Chul Cheun Ma Tang on Voluntary in mice have Confirmed that was remarkable sedative activity. The results are as follows; 1. Group with the doses of 50㎎/㎏ was significantly depressed than those of control group. 2. Group with the doses of 50㎎/㎏ plus C. N. B. 20㎎/㎏ was significantly depressed than C. N. B 20㎎/㎏ group.

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.

직경 1˝ 자성관에서의 원격장와전류 탐상 실험 빛 결함신호 특성

신영길,이창준,이정호,이윤태,장권규,송성철,송성진,정태언 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-

In this study, a remote field eddy current testing system is built to inspect 1˝ diameter ferromagnetic tubes and resulting experimental signals are investigated. To decide the operating frequency, the emf of sensor coil is monitored while the sensor coil is moved away from the exciter. At proper frequency, sudden change would occur in the signal pattern. This also indicates the location of remote field region, so that the distance between coils can be decided. The defect signal contains two defect indications, each appears as the sensor and exciter coil passes a defect. Experimental results show that defect depth can be estimated by comparing the two indications. Also, linear relationship between defect depth and phase signal strength is observed.

급성신우신염의 임상적 고찰

신영태,신승훈,이순구,이정호,이강욱 충남대학교 의과대학 지역사회의학연구소 1990 충남의대잡지 Vol.17 No.2

A clinical retrospective study was undertaken in 81 patients with acute pyelonephritis admitted to the Department of Internal Medicine, Chungnam National University Hospital from January 1983 to December 1989. The results were as follows : 1. Total number of patients studied was 81(M/F ratio, 1 : 4.4). The M/F ratio of 22 complicated patients (27.2%) was 1 : 2.7 2. The predisposing factors associated with complicated patients were as follows : 7 cases of urinary tract stone, 7 cases of pregnancy, 4 cases of neurogenic bladder and each one case of prostatic hypertrophy, ureter cancer, bladder diverticulum and polycystic kidney disease. 3. The common subjective symptoms on admission were fever and chills, frank pain, nausea and vomiting. High body temperature and CVA tenderness were noted in 61% and 95% of patients respectively. And 50.6% of patients revealed right CVA tenderness and 28.4% in left, 16% in both respectively. There was no difference in symptoms and signs between complicated and uncomplicated groups 4. In 50 patients(61.7%) microorganisms were isolated on the urine culture specimens. The most common organism was E. coli(80%), and followed by Staphylococcus aureus and Serratia odorifera. E coli was the most frequent pathogen in both female and male patients, and in complicated and uncomplicated groups. (In sensitivity test of complicated and uncomplicated groups). In sensitivity test of causative pathogens to antibiotics, E coli was sensitive to amikacin(93%), tobramycin(83.3%) and gentamycin(79.4%) and 88.9 percent of E coli were ressistant to ampicillin 5. In urinary examination on admission, pyuria was noted in 81% of patients, and proteinuria and microscopic hematuria were noted in 68% and 44% of patients respectively. 6. Within 3 days after antibiotics treatment deference was occured in 73.5% of total patients, and complicated patients revealed delayed defeverence compared to uncomplicated ones.

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.

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).

姙娠末期 및 哺乳期 飼料의 아미노산 補强이 母豚의 生産性 및 仔豚成長에 미치는 影響

辛炯泰,金永玉 成均館大學校 科學技術硏究所 1988 論文集 Vol.39 No.1

This experiment was conducted to study the effect of amino acid supplementation to two protein level of corn-soybean meal diets fed in late-pregnancy and lactation on the performance of sows and their litters. The experimental diets were consisted of 13% protein diet(T_1), 13% protein diet + 0.26% lysine + 0.10% methionine + 0.02% tryptophan(T_2), 15% protein diet(T_3), 15% protein diet + 0.02% tryptophan(T_4). Experiment was undertaken with 16 gestating sows for 80 days(50 days in late-pregnancy period and 30 days in lactation period). Some results watch were obtained with this experiment as follows: 1. There were no differences in body weight change of gestating sows during late pregnancy among the treatments. 2. Numbers of live-born piglets at birth were similar among the treatments. Birth weight of piglets by gestating sows fed 15% protein diet + 0.02% tryptophan(T_4) was the highest, but there were no significantly different among the treatments(P>0.05). 3. The highest weaning piglet body weigiht was 15% protein diet + 0.02% tryptophan (T_4) and the lowest was 13% proten diet(T_1). 4. the body weight change of lactating sows during lactation was affected by milk yield. Lactation weight loss was greater for sows receiving 13% protein diet(T_1) and lesser for 15% protein diet + 0.02% tryptophan(T_4). So, it may be concluded that tryptophan(0.02%) supplementation to 15% protein diet for late-pregnancy and lactation period would be the best performances. Lysine, methionine, tryptophan supplemention to 13% protein diet and 15% protein diet in late-pregnancy and lactation showed similar performances of sows and litters.

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.