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오징어 내장을 쏘가리 사료로서 활용하기 위한 기초연구 1. 오징어 내장의 주요 성분 특성
전중균,주동식,조순영,김양배 강릉대학교동해안지역연구소 1998 東海岸硏究 Vol.8 No.2
To obtain high quality fish oil and feedstuff from by-product of squid processing, especially squid viscera, the raw materials should be freshed and have low lipid oxidation. In addition, the lipid content in stickwater produced from raw squid viscera by centrifuging should be low level. We investigated on processing acceptability for viscera in domestic and exotic squids to prepare a feed for mandarin fish. Lipid oxidation in domestic squid viscera occured less than that in exotic squid one. It assumed that exotic squid was stored at higher temperature condition and for longer time, compared to domestic squid. The free amino acids content in domestic squid viscera was higher than that in exotic squid one. The domestic squid viscera was more acceptable as feed material for mandarin fish than exotic squid one.
SOL-GEL法에 依한 LAS系 結晶化유리의 製造에 있어서 租成比유리의 特性에 미치는 影響
김봉걸,양중식,조훈성,권창오,박경호 慶熙大學校 材料科學技術硏究所 1990 材料科學技術硏究論集 Vol.3 No.-
The purpose of this study is to investigate into the physical properties of Li₂O-Al₂O₃-nSiO₂ (LAnS) system of crystallized glass prepared by sol-gel method according to the composition ratio of LAnS. In order to find the crystallization temperature as well as the state of crystalline, differential thermal analysis and X-ray diffraction analysis were examined. The results obtained are as follows : 1. Gelling time became longer as increasing the composition ratio of SiO₂ and also found that it became faster as increasing the additive amount of water. Also, additive amount of water required for the gellation was above four times of the theoretical amount of water required hydrolysis. 2. Surface area and mean pore size became larger as increasing the composition ratio of SiO₂ and for LA4S dried gel, surface area was 331.1m^(2)/g, mean pore size distributed about 5nm and 30-50nm. 3. The crystallization temperature is high as increasing the composition ratio of SiO₂ and for LA4S, crystallization temperature is 800℃. Also, LA4S formed at 800℃ for the crystalline phase of β-eucryptite and at 900℃ for crystalline phase of β-spodumene.
한국·미국·스페인 청소년의 태권도 수련이 인성교육에 미치는 영향
유창재,양정옥,이중숙,이상돈,김영수,조만태 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6
The purpose of this study was to analyzed what effect Taekwondo training has upon Juvenile trainees in Korea, America, and Spain. to see if there is a significant difference in their Human nature Education. The subject of this study was set up as 547 Juvenile trainees who are including 183 Koreans, 185 Americans and 179 Spanish people belonging to gymnasia in their own countries, and sampling by purpose sampling. The means in this study is used to amend and complemented after confirming suitability of the contents in the questionnaire that is made on the basis of questionnaire Lee Chul Ho(1996). it is used as study means after modified, whether the substance of question is right in fitness and applicability or not, Reliability of the question, the range of Cronbach's a is showed from .7924 to .8450. The method of statistically analysis adapted one-way ANOVA, two-way ANOVA by using SPSS WIN 10.0 Program. The result of this study are as followed : First, it can be seen that American Juvenile and Spanish Juvenile show more significant change than Korean Juvenile in their Human nature Education by the Taekwondo training according to their nationality. Second, it can be seen that Juvenile who have had the Taekwondo training for more than from three to five year show more significant change in their emotion, sociability and attitude towards life than those who have had the same training for more than other period in their Human nature Education according to their Taekwondo training period. Third, as a result of analytic investigation of what effect the same training has upon the change factors in their Human nature Education in accordance with their training period and nationality, it can be seen that the training itself and nationality has the greater influence on them than the training period. Therefore, judging from the above findings, it can be proved that the Taekwondo training has much more significant and positive effect on Juvenile in their change of emotion, sociability and attitude towards life.
Jung-Il Yang,Hee Joong Jeong,Lae-Hyeon Cho,Jinmi Yoon,Gynheung An 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Post-translational modifications of nucleosomal core histones play important roles in biological processes via altering chromatin structure and creating target sites for proteins acting on chromatin. Molecular genetic studies with Arabidopsis have verified several epigenetic factors that regulate flowering time. However, the roles of chromatin remodeling factors have not been well explored in rice. Here, we identified chromatin remodeling factors, OsVIL1, 2, and 4 (Oryza sativa VIN3-LIKE) genes, that regulate grain yield. OsVIL proteins contain a plant homeodomain (PHD) finger, which is a conserved motif of histone binding proteins. We showed that plant height and number of spikelets per panicle were increased in the OsVIL2-overexpression (OsVIL2-OX) and osvil4 plants, respectively. Each mutants (OsVIL2-OX and osvil4) exhibited longer internodes and thicker stems than wild type controls. Histochemical analysis revealed that cells are smaller in OsVIL2-OX and osvil4 plants. We performed an RNA-seq using 1st internodes of WT and OsVIL2-OX stems and got the suppressed target genes in the OsVIL2-OX. OsCKX2, which encodes cytokinin oxidase/dehydrogenase is one of the suppressed genes in the OX plants and we verified decrease of that gene using qRT-PCR and closed chromatins of OsCKX2 were enriched in the OX plants by using ChIP. As results of these, cytokinins were enriched in the OX plants. These demonstrate that OsVIL2 and OsVIL4 antagonistically regulate plant height and number of spikelets by controlling cytokinin contents. Like OsVIL2-OX and osvil4 plants, besides, OsVIL1-OX plants were also shown increased plant height and biomass. We propose that OsVILs may be used for improving grain yield by increasing biomass.
박동준,최영미,이옥재,조중현,양중일,김휘종,조중현,유진종 대한내과학회 2000 대한내과학회지 Vol.59 No.1
Intraabdominal abscess, resulting from primary intraperitoneal disease such as appendicitis, diverticulitis or as a complication of surgery, remains a serious problem with high mortality if not treated early and adequately. In the case of acute bowel perforation, surgery is the treatment of choice, but radiologically guided percutaneous drainage is very effective for the subacute and localized abscess within the peritoneal cavity. However, perirectal abscesses located deep within the pelvis are unapproachable percutaneously because of interposed structures such as the urinary bladder, loops of bowel. Transrectal drainage overcomes these limitations. We present here a case of perirectal abscess treated successfully and safe with transrectal catheter drainge.(Korean J Med 59:59-63, 2000)
양재승,조한옥,권중호,변명우 한국농화학회 1987 Applied Biological Chemistry (Appl Biol Chem) Vol.30 No.2
The usual sterilization methods such as fumigation and autoclaving of laboratory rodent diet was compared with a new irradiation treatment in the point of sterilization effect and physico-chemical quality. Under the treatments of 10∼20 kGy r-irradiation and autoclaving at 121℃ for 20 min, total microorganisms were eliminated but ethylene oxide fumigation was insufficient to destory them. Total amino acid content was reduced about 5% in 20 kGy radiation treatment compared with control, while in the ethylene oxide fumigation and the autoclaving, the reducing rate was markedly great as 15% and 20%, respectively. Total sugar and mineral contents were not significantly different among treatment among treatment groups. TBA values were increased in all treatments. The pH of irradiated group was stable in comparison with that of ethylene oxide. In the treatments of ethylene oxide and especially autoclaving, overall appearance was decreased to a great extent as a result of decreasing lightness and increasing redness.
Cho, Joon-Hyung,Jeon, Soo-Bin,Yang, Kyeong-Soon,Seo, Jong-Beom,Cho, Sang-Won,Oh, Kwang-Joong Elsevier 2015 Separation and purification technology Vol.156 No.2
<P><B>Abstract</B></P> <P>In the CO<SUB>2</SUB> absorption process, heat stable salts (HSS) have been reported to be a major cause of operational problems, such as excessive foaming, corrosion, amine loss, and capacity reduction. Ion exchange technology has been the most effective and economical way for the removal of HSS. However, the disadvantage of this technology is its low regeneration efficiency. This study attempted to improve the low regeneration efficiency of anion exchange resin loaded with HSS by using a novel zirconium pentahydroxide (ZrOH<SUB>5</SUB> <SUP>−</SUP>) displacement technique. The experimental results showed, in the batch system, that the most effective potential metal-hydroxide regenerant, Zr(OH)<SUB>5</SUB> <SUP>−</SUP>, exhibited an efficiency that is 15.2% higher than for conventional NaOH, and in the continuous system, Zr(OH)<SUB>5</SUB> <SUP>−</SUP> had an efficiency that is 28.0–17.8% higher for 1.5–5bed volume (BV). The differences of the BV corresponded to the breakthrough point for the initial breakthrough and after the 1st and 2nd regenerations were only 1.5–3.9%, which means that there was no significant deterioration of the resin’s performance by Zr(OH)<SUB>5</SUB> <SUP>−</SUP> regeneration. The mechanism of the general ion exchange steps as well as the regeneration by Zr(OH)<SUB>5</SUB> <SUP>−</SUP> was determined by performing an FT-IR analysis. These results indicate that the novel Zr(OH)<SUB>5</SUB> <SUP>−</SUP> displacement technique improves the low regeneration efficiency of the ion exchange process.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The Zr(OH)<SUB>5</SUB> <SUP>−</SUP> is the most effective regenerant of the candidates that were tested. </LI> <LI> The Zr(OH)<SUB>5</SUB> <SUP>−</SUP> exhibits higher regeneration efficiency than for conventional NaOH. </LI> <LI> There is no significant deterioration of the resin’s performance by Zr(OH)<SUB>5</SUB> <SUP>−</SUP>. </LI> <LI> The regeneration mechanism for water structure enforced-ion pairing is proposed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>