• ICROS
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• v.22 no.3
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• pp.26-33
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• 2016

스마트 양식 기술은 스마트 양식 솔루션 개발, 양식생산 자동화, 양식 사육수 처리 분야 등에서 점차적으로 발전하고 있으나, 세계 양식 시장의 확대로 인해 양식 생산 기술과 ICT 기술과의 융합이 가속화 될 전망이다. 본 논문에서는 스마트 양식 기술 특허 분석과 국내외 기술 동향 분석을 통해 스마트 양식 시스템의 기술 발전 방향을 소개한다.

• Proceedings of the Korean Fiber Society Conference
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• 1995.10a
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• pp.51-51
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• 1995

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2006.09a
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• pp.545.2-545.2
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• 2006

• The Journal of the Petrological Society of Korea
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• v.22 no.4
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• pp.299-305
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• 2013

It is well known that the Hongcheon iron-rare earth deposit is composed of carbonatite-phoscorite complex. We conducted zircon U-Pb age determination for the gneissic country rocks of this deposit. As the result we obtained ca. 1830 Ma, which is somewhat younger than igneous and metamorphic ages of ca. 1870 Ma generally reported from the Gyeonggi massif, suggesting further investigations for the timing and evolution of the Paleoproterozoic activities of the Gyeonggi massif.

• Korean Journal of Materials Research
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• v.4 no.2
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• pp.166-176
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• 1994

Ni base superalloys are composed of solid sohltion hardening elements(Co, Cr. Mo. W and so on) and $\gamma '$ precipitation hardening elements(A1, Ti, Nb, Ta and so on). To Improve the mechanical properties and oxidation resistanre of superalloys, rare earth elements(%r, Hf, Y and so on) are added to the inner substrate, or are used as coating materials. Their pffects on the growth rate and adhes~on of oxide are changed according to the kinds of oxides such as $AI_2O_3$ and $Cr_2O_3$. The effect of yttrium on the oxidation rate, grain size of oxide, internal structure, and crack resistance was investigated for two kinds of Ni-base superalloys. One in AF'115 superalloy containing Hf and the other is MA6000 superalloy containing $Y_2O_3$. They werr owid~zed at high temperature after yttrium surface modification using ion coater. Yttrium coating on the AF115 and MA6000 superalloys results in a marked change in the growth of the inner oxide. For AF115 superalloy, the degree of gram boundary segregation of $Cr_2O_3$, and prefer en^ tial oxidation of Hf are decreased, and the shape of inner oxidation layer was changed from triangle to plate type. For MA6000 superalloy, $Cr_2O_3$ oxide scale was transformed as outer oxidation layer of CrZOI and inner oxidation layer of $Cr_2O_3$.

• Journal of Sasang Constitutional Medicine
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• v.16 no.2
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• pp.1-16
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• 2004

1. Objectives Theory of Iinsim Tosim(the Human - Mind and the Moral - Mind) that originated from "Sang-Seo(尙書)" "Dae-Woo-Mo(大禹謨)" is a relative importance point of dispute at the existing confucianism and chosun's neo confucianism. Our consideration point is that a close examination of relation between Iinsim-Tosim theory of existing confucianism's and Lee Je-ma's thought of Iinsim Tosim and his creative exposition that is related to view of human being contained theory of sasang(四象), knowledge & conduction(Jihang, 知行). 2. Methods of Research We analyze "Gyukchigo(格致藁)" that is contained confucianism's contents and Lee Je-ma's view point of human being, and consult " Dongyi Suse Bowon chobongeun(東醫壽世保元草本卷)", "Dongyi Suse Bowon(東醫壽世保元)", reference about confucianism and some other thesis. 3. Results (1) Lee Je-ma's thought of Iinsim Tosim is closely connected each other. There is close correlation between Iinsim and Tosim such as both ends. And Iinsim Tosim is not virtue and vice relation but all good concept, though each have fragility, Iinsim have weakness of laziness and Tosim have that of desire. (2) Lee Je-ma insist on having lisim(理心)-kyungsim(敬心) for overcoming each fragility that weakness of laziness and desire. And he present learning(學) and speculation(思) for acquirement of lisim(理心) kyungsim(敬心). (3) Lee Je-ma's thought of Iinsim Tosim's containing meaning is not one side but both side for nature(性) & emotion(情). therefore Iinsim Tosim is closely connected Lee Je-ma's view of human being and theory of knowledge & conduction(Ji-Hang, 知行論). That is very different from existing confucianism & MyungSunlock(Book of Illuminating Goodnes)'s thought. (4) Iinsim is connected with knowledge(知), Tosim is connected with conduction(行) (5) Lee Je-ma's thought of Affairs - Mind - Body - Objects(事心身物) is closely connected with Iinsim-Tosim. 4. Conclusions There are no parts that directly criticized by LEE JE-MA, comparing with he's thought and the existing confucianism's theory of Iinsim Tosim, a specific person's theory. but LEE JE-MA approached the theory of Iinsim Tosim with thought that is not an extension of existing confucianism's thought, but original with himself, therefore LEE JE-MA's thought of Iinsim Tosim is closely connected with the most important conceptions (theory of nature & emotion, theory of knowledge & conduction) at the Sasang Constitutional Medicine. and Iinsim Tosim is an important clue for understanding the thought of LEE JE-MA.

• Journal of the Korean Society of Safety
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• v.25 no.1
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• pp.22-26
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• 2010

Material degradation should be considered to assess integrity and residual life of high temperature equipments. However, the property data reflecting degradation are not sufficient for practical use. In this study, mechanical properties of 1Cr-1Mo-0.25V casting steel generally used for turbine casing were measured and variation of microstructure was observed. Degradation was simulated by isothermal heat treatment.

• Economic and Environmental Geology
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• v.47 no.1
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• pp.29-38
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• 2014

Recently developed illite-age-analysis (IAA) approach has been applied to determine the multiple events for the Singal and Wangsukcheon faults in the Chugaryeong fault belt, Korea. Fault reactivated events during Late Cretaceous to Paleogene events($69.2{\pm}0.3$ Ma and $27.2{\pm}0.5$ Ma) for the Singal fault and of $75.4{\pm}0.8$ Ma for the Wangsukcheon fault were determined by combined approach of the optimized illite-polytype quantification and the K-Ar age-dating of clay fractions separated from the fault clays. These absolute geochronological determinations of the multiple tectonic events recorded in the Chugaryeong fault belt are crucial to establish the tectonic evolution of the Korean Peninsula since Late Cretaceous.

• Proceedings of the Korean Vacuum Society Conference
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• 2012.02a
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• pp.259-259
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• 2012

Mo-Cu 합금은 열전도도, 전기전도도가 우수하고 합금조성에 따라 열팽창계수의 조절이 가능하여 반도체소재, 방열소재, 접점소재 등에 적용가능성이 높은 재료로 주목받고 있다. 또한 상태도 상에서 고용도가 전혀 없기 때문에 박막을 제작하였을 경우, 나노 복합체 형성이 용이하고 질소 분위기에서는 MoN-Cu로 상분리가 가능하여 하드상과 소프트상의 물성을 동시에 보유한 박막 제작이 가능하다. 또한 고온에서 산화반응에 의해 생기는 $MoO_3$, $CuO_3$와 같은 준안정상의 산화물들은 육방정계 구조(HCP)를 가지며 전단특성이 우수하여 자동차 저마찰 코팅재료로써 많은 연구가 진행되고 있다. 반면, Mo-Cu 는 상호간에 고상은 물론 액상에서도 고용도가 전혀 없기 때문에 일반적인 방법으로는 합금화 또는 복합화가 어렵다. 또한 Mo-Cu 박막을 제작할 경우 복수의 타겟을 이용해야 하기 때문에 성분조절과 구조적 제어가 불리하고 공정의 복잡화라는 단점을 가지고 있으며 추가적으로 다른 원소를 첨가하여 3원계, 4원계 이상의 박막을 형성하는 것에 한계가 있다. 따라서 본 연구에서는 위와 같은 문제점을 해결하기 위하여 상호간의 고용도가 없는 재료의 합금화가 용이한 기계적 합금화법(Mechanical Alloying)을 이용하여 Mo-Cu 합금분말을 제조하였고, 준안정상태의 구조의 유지가 가능한 방전 플라즈마 소결법(Spark Plasma Sintering)을 이용하여 합금타겟을 제작하였다. Mo-Cu 박막은 제작된 합금타겟을 사용하여 DC 스퍼터링 공정으로 제작하였다. Mo-Cu 박막의 공정조건으로는 타겟조성, 공정분위기, 가스 비율로 정하여 실험을 진행하였다. 제작된 박막은 자동차 코팅재료로써의 적용가능성을 보기 위해서 내열성, 내식성, 내마모성의 특성을 평가하였다.

• Reproductive and Developmental Biology
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• v.35 no.3
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• pp.287-294
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• 2011

Autophagy is a process of intracellular bulk protein degradation, in which the accumulated proteins and cytoplasmic organelles are degraded. It plays important roles in cellular homeostasis, apoptosis, and development, but its role during early embryo development remains contentious. Therefore, in the present study, we investigated the effects of 3-methyladenine (3-MA) on early embryonic development in pigs, we also investigated several indicators of developmental potential, including mitochondrial distribution, genes expressions (autophagy-, apoptosis- related genes), apoptosis and ER-stress, which are affected by 3-MA. After in vitro maturation and fertilization, presumptive pig embryos were cultured in PZM-3 medium supplemented with 3-MA for 2 days at $39^{\circ}C$ 5% $CO_2$ in air. Developmental competence to the blastocyst stage in the presence of 3-MA was gradually decreased according to increasing concentration. Thus, all further experiments were performed using 2 mM 3-MA. Blastocysts that developed in the 3-MA treated group decreased LC3-II intensity and expressions of autophagy related genes than those of the untreated control, resulting in down-regulates the autophagy. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) showed that the number of containing fragmented DNA at the blastocyst stage increased in the 3-MA treated group compared with control ($6.0{\pm}1.0$ vs $3.3{\pm}0.6$, p<0.05). Also, the expression of the pro-apoptotic gene Bax increased in 3-MA treated group, whereas expression of the anti-apoptotic gene Bcl-XL decreased. Mito Tracker Green FM staining showed that blastocysts derived from the 3-MA treated group had lower mitochondrial integrity than that of the untreated control, resulting in decrease the embryonic qualities of preimplantation porcine blastocysts. Then, the expression of the spliced form of pXBP-1 product (pXBP-1s) increased in 3-MA treated group, resulting increase of ER-stress. Taken together, these results indicate that inhibition of autophagy by 3-MA is closely associated with apoptosis and ER-stress during preimplantation periods of porcine embryos.