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박란,이성기,송영일 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.-
The purpose of this study was water quality of water treatment plants and distribution and service pipes examine and comparison, remain effect of disinfectant examine, used quality mark out prediction technique according to the distance apart from water treatment plants as intend to contributed water management. 1. The Langelier Saturation Index which is used to measure corrosion is influenced by the pH of the water. pH is at 6.3∼7.3 at the terminal place and in summer there is minimal pipe line corrosion in K city. 2. The shorter the distance from the water treatment plant to the tap the free chlorine residual concentration is only slightly deminished, but as the as the distance from source to tap increases the free chlorine residual concentration in the water decreases. Free chlorine residual change the 1st reaction, the 1st reaction was C = 0.70e (-0.105L). 3. The equation of 1st reaction law for color was C= 1.636e (0.008L), 1st reaction law for turbidity was C = 0.57e (0.050L). 4. The optimum distance for free chlorine residual concentration of 0.2 ㎎/L is about 15∼16km from water treatment p1ant(or distribution reservoir). Therefore, when the terminal place is 20∼25km the injection of free chlorine residual as the concentration of 0.3∼0.5 ㎎/L from water treatment plants(or distribution reservoir). The high free chlorine residual concentration avoid inject, in result pipe line corrosion and THM's was potential of dissolved.
박란,이성기,송영일 조선대학교 환경연구소 1999 環境硏究 Vol.15 No.1
The purpose of this study was water quality of water treatment plants and distribution and service pipes examine and comparison, remain effect of disinfectant examine, used quality mark out prediction technique according to the distance apart from water treatment plants as intend to contributed water management. 1. The Langelier Saturation Index which is used to measure corrosion is influenced by the pH of the water, pH is at 6.3∼7.3 at the terminal place and in summer there is minimal pipe line corrosion in K city. 2. The shorter the distance from the water treatment plant to the tap the free chlorine residual concentration is only slightly deminished, but as the as the distance from source to tap increases the free chlorine residual concentration in the water decreases. Free chlorine residual change the 1st reaction, the 1st reaction was C=0.70e^-0.105L. 3. The equation of 1st reaction law for color was C=1.636e^0.008L, 1st reaction law for turbidity was C=0.57e^0.050L. 4. The optimum distance for free chlorine residual concentration of 0.2㎎/L is about 15∼16㎞ from water treatment plant(or distribution reservoir). Therefore, when the terminal place is 20∼25㎞ the injection of free chlorine residual as the concentration of 0.3∼0.5 ㎎/L from water treatment plants(or distribution reservoir). The high free chlorine residual concentration avoid inject, in result pipe line corrosion and THM's was potential of dissolved.
카드뮴투여가 흰쥐 고환의 조직변화와 단백질변화에 미치는 영향
최송표,김수일,조근자,양은진,김선,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2
This study was done to investigate histochemical and protein changes in the rat testis I WAT and 3 WAT with 4 mg/kg of cadmium, IP, single injection. A control group and 2 experimental groups were studied. Testes were processed routinely for H&E stain and agarose gel electrophoresis. The results were as follows ; 1. In the histochemical studies, death of all the spermatogenic cells and Sertoli cells in the seminiferous tubules, and decreased ground substance, decreased fibroblasts and interstitial cells and increased inflammatory cells in the interstitial tissues were found in the cadmium treated groups, and the degree of necrotic changes was more severe in the 3 WAT group. 2. In the biochemical studies, two kinds of proteins, 25 kDa and 45 kDa, were disappeared and one kind of protein, 100 kDa, was decreased after Cd treatment. 25 kDa and 45 kDa proteins were suggested as actin which consist the spermatogenic cells, but what's the protein 100 kDa is unclear. According to the above results, it is considered that there would be irreversible changes in seminiferous convoluted tubules and also in the interstitial tissues after cadmium treatment, and detecting amino acid sequences of these proteins would help understanding the mechanism of necrosis in the testis tissue after cadmium administration.
우숙희,정국동,최송표,조근자,양은진,김수일,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1
Fingerprint patterns of 333 schizophreniacs who met with the diagnostic criterias of International Pilot Study of Schizophrenia except items associated with chronicity in exclusion criteria were studied, and the following results were obtained. 1. The frequency distribution of the fingerprint patterns in the 333 schizophreniacs was ulnar loop, whorl, twinned loop, arch, radial loop in order in both control and schizophrenia groups. 2. Finger ridge counts of both sexes were decreased significantly in schizophrenia group. 3. Dissociation of fingerprint pattern in the schizophrenia group was 51.1%, which was far greater than 6.25% of control group. Number of dissociation was greatest in the thumb, followed by index, middle, ring, and little finger in order. According to the above results, it is considered that both the number of finger ridges and degree of dissociation of fingerprint patterns were closely related with schizophrenia. Analysis of fingerprints and palmprints with the aid of chromosomal analysis would contribute the early diagnosis and prevention of schizophrenia.
Song, Young-Ran,Sung, Su-Kyung,Jang, Mi,Lim, Tae-Gyu,Cho, Chang-Won,Han, Chun-Ji,Hong, Hee-Do Elsevier 2018 INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES Vol.116 No.-
<P><B>Abstract</B></P> <P>In this study, enzyme-assisted extraction was used to isolate functional polysaccharides from Korean ginseng (<I>Panax ginseng</I> Meyer) and the physicochemical and biological properties of the extracted polysaccharides were investigated, comparing with those from traditional hot-water extraction (FGWP). In macrophages, their effects on cytokines production could be ordered as FGEP-CA ≥ FGEP-A > FGEP-C > FGWP, suggesting that FGEP-CA (combined cellulase- and α-amylase-extracted polysaccharide) is a potent immunostimulator. In addition, enzymatic digestion led to differences in the monosaccharide profile of the extract. FGWP mainly consisted of rhamnose, arabinose, galactose, galacturonic acid, and glucose in molar percentages of 1.8:10.1:9.2:17.8:60.6, whereas FGEP-CA was 3.2:11.4:16.5:22.3:45.8, respectively, suggesting that enzyme-assisted extraction of ginseng polysaccharides produces a higher proportion of pectin polysaccharides. The HPLC profile of FGEP-CA also showed lower and more heterogeneous molecular weights than FGWP did. In cyclophosphamide-induced immunosuppressed mice, FGEP-CA administration ameliorated decreased spleen and thymus indices (200 mg/kg), lymphocyte proliferation, natural killer cell activity, leukocyte counts, and the serum cytokines, interleukin-2, interleukin-6, and interferon-γ (100 and 200 mg/kg). These results suggest that enzyme-assisted extraction using cellulase and α-amylase is an effective method for the preparation of functional polysaccharides from fresh Korean ginseng, and FGEP-CA could be utilized as a potential immune-stimulatory agent.</P>