리튬이온이차전지용 LiCoO₂-유기전해액의 충전상태에 따른 열적 안정성

김동훈,이영호,신혜민,정영동,도칠훈,진봉수,김현수,문성인,오대희,김기원,Kim, Dong-Hun,Lee, Young-Ho,Shin, Hye-Min,Chung, Young-Dong,Doh, Chil-Hoon,Jin, Bong-Soo,Kim, Hyun-Soo,Moon, Seong-In,Oh, Dae-Hui,Kim, Ki-Won 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.5

Thermal behavior of $Li_{1-x}CoO_2$ has been investigated employing DSC (Differential Scanning calorimetry) and TGA (Thermogravimetry Analyzer), and the crystal parameters were calculated from XRD (X-ray diffraction).for the commercial rectangular pouch cell(1000 mAh).The cathode materials coated over aluminium foil current collector is made up of a blend consisting of active material $LiCoO_2$(size $20\;{\mu}m$, 94 wt%), conducting material super p black (SPB, 3 wt%) and binder polyvinylidene fluoride (PVDF, 3 wt%). The anode is a mix consisting of carbon (92 wt%) and PVDF(8 wt%) coated over copper foil. The cells for the experiments were first preconditioned by cycling three times and stabilized at OCV=3.0, 3.5, 4.2, 4.35 and 4.5 V. The stabilized cathode material was used for thermal and crystal parameter investigations.

한열성향(寒熱性向)에 따른 신문혈(神門穴) 애구(艾灸) 효능(效能)의 비교(比較) 연구(硏究)

김동훈,김종덕,김은정,김경태,류성룡,정지철,박영배,Kim, Dong-hoon,Kim, Jong-deog,Kim, Eun-jung,Kim, Kyung-tae,Rhu, Seong-ryong,Jung, Ji-chul,Park, Young-bae 대한침구의학회 2004 대한침구의학회지 Vol.21 No.4

Objective: Moxibustion is one of major healing technique in oriental medicine. It has been widely used in many disease. There is an text which suggest moxibustion is more efficient to the situation of han(寒) and heo(虛) than yeal(熱) and sil(實) in Huangdineijing <黃帝內經>. The aim of this study is to research the effect of moxibustion at Shinmun(H7) is different according to cold or heat tendendy man by analyzing the electroencephalogram(EEG). Methods: We classified objects by their cold or heat tendency using questionnare for cold - heat patternization. (12 cold tendency man, 19 heat tendency man) Before and after moxibustion at Shinmun(H7), EEG raw data were measured during 5 minutes. The correlation dimension(D2), the correlation dimension variability rate(${\Delta}D2$), largest lyapunov exponent(L1) and largest lyapunov exponent variability rate(${\Delta}L1$) were calculated. We analyzed D2, ${\Delta}D2$, L1, ${\Delta}L1$ to see the effect of moxibustion at Shinmun(H7) was statistically different according to Cold or Heat tendendy man. Results : Paired t-test showed significant differences between before and after moxibustion at Shinmun(H7) on the Fp2 in D2(p<0.05), on the Fp2, F3 and F4 in ${\Delta}L1$(p<0.05). Student Hest showed significant differences between cold and heat tendendy man on the F3 in ${\Delta}L1$(p<0.05). Conclusion: These results suggest that moxibustion at Shinmun has an effect on stabilizing mind and it is more efficient to the cold tendendy man than the heat tendendy man.

Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF)의 첨가가 생쥐 수정란의 발생과 착상관련 유전자 발현에 미치는 영향

김동훈,고덕성,이회창,이호준,강희규,김태전,박원일,김세웅,Kim, Dong-Hoon,Ko, Duck-Sung,Lee, Hoi-Chang,Lee, Ho-Joon,Kang, Hee-Gyoo,Kim, Tai-Jeon,Park, Won-Il,Kim, Seung-Samuel 대한생식의학회 2002 Clinical and Experimental Reproductive Medicine Vol.29 No.2

Objective : The purpose of the current series of experiments were to assess the effect of GM-CSF, as a medium supplement, on the development of mouse embryos and the expression of LIF and IL-1? mRNA. Materials and Methods: Mouse 2-cell embryos were collected from the oviducts of 6 weeks old ICR mice at 48 hours after hCG injection. Embryos were cultured in P-1 medium supplemented with mouse GM-CSF (0, 1, 5, 10 ng/ml). The embryo development to blastocysts and hatching blastocysts was assessed and the cell number in blastocyst was also examined. Using RT-PCR, the expressions of LIF and IL-1? mRNA in blastocyst were evaluated in the GM-CSF supplemented group and control group. Results: In mouse, the addition of GM-CSF increased the percentage of blastocysts (65.5%, 68.6%, 73.0% and 76.1% for control and 1, 5 and 10 ng/ml, respectively), and increased the proportion of hatching blastocysts (35.2%, 36.4%, 43.2% and 53.0% for control and 1, 5 and 10 ng/ml, respectively). The mean cell numbers in blastocyst were significantly increased in GM-CSF supplemented groups compared to control group. LIF and IL-1? expression in blastocyst were significantly higher in GM-CSF supplemented group than in control group. Conclusion: The results of experiment by mouse embryos showed beneficial effects of GM-CSF as a medium supplement. Furthermore, the addition of GM-CSF significantly increased the expression of LIF and IL-1? in mouse embryos. These results suggest that GM-CSF might be a important molecule in embryo implantation.

방광의 소세포 신경내분비 암종의 요 세포학적 소견 - 1 예 보고 -

김동훈,강동욱,김경희,김주헌,박미자,Kim, Dong-Hoon,Kang, Dong-Wook,Kim, yuug-Hee,Kim, Ju-Heon,Park, Mee-Ja 대한세포병리학회 2002 대한세포병리학회지 Vol.13 No.2

We report the cytologic features of a case of primary small cell carcinoma of the urinary bladder with high grade transitional cell and signet ring cell carcinomatous components. A 64-year-old male presented with gross hematuria for one week. Computed tomography revealed an ill-defined mass in the left lateral wall of the urinary bladder. Urinary cytology showed hypercellularity with predominantly isolated single cells and clustered cells. They have scanty cytoplasm and naked hyperchromatic nuclei with finely granular nuclear chromatin and rare nucleoli. The tumor cells occurred predominantly singe cells, but a few in clusters. Nuclear molding was prominent. No glandular formation or nesting was noted. The second tumor cells had high nuclear/cytoplasmic ratio, irregular nuclear membrane, and coarse granular chromatin. The background was inflamed and necrotic. The histoiogic findings of transurethral resection were mainly composed of small cell carcinoma, and partly transitional cell and signet ring cell carcinomatous components. Small cell neuroendocrine carcinoma have distinctive cytologic features to make a proper diagnosis.

최근(最近) 삼년간(三年間) 당사(當社)의 생명보험(生命保險) 가입자(加入者)에 대(對)한 사망현황(死亡現況) 조사(調査)

김동훈,고철수,김강석,Kim, Dong-Hoon,Ko, Choul-Soo,Kim, Kang-Sueck 한국생명보험의학회 1986 保險醫學會誌 Vol.3 No.1

We have examined 5,304 cases of claims by death that had occured for recent three years from January, 1983 to November, 1985 in Dae han kyoyuk Ins. Co. As a result, we came to following conclusions: 1. The total numbers of the deaths are increased for three years, but the deaths, classifying by medical examinations are decreased. 2. The great part of the death were due to Accident death(27.7%), occupied Number 1, malignant neoplasm(23.9%) Number 2 and Circulatory system disease(23.9%), which were the main canses of death in the insured people. 3. With age, section ranging from 30-39 years of death cases took extremely large portions by 35.2%. 4. For the period elapsed, the deaths within 2 years to ander 3 years, 18.6%, above 6 years, 18.6%, thus the period elapsed was longer more and more as years go. 5. By the deaths of malignant neoplasm, hepatoma in male and gastric cancer in female were important causes of death.

어리장 형태와 계절이 육계 출하환경 및 폐사에 미치는 영향

김동훈,박범영,황인호,조수현,김진형,이종문,Kim Dong-Hun,Park Beom-Young,Hwang In-Ho,Cho Soo-Hyun,Kim Jin-Hyung,Lee Jong-Moon 한국축산식품학회 2006 한국축산식품학회지 Vol.26 No.1

이 연구는 어리장 형태와 계절이 출하환경 및 폐사율에 미치는 영향을 조사하여 출하 중 폐사에 의한 경제적 손실을 예방하고 관련 시설 개선을 위한 정책적 자료를 확보하기 위해 수행하였다. 관리실태는 출하관리환경이 다른 2계열 업체의 관리대장을 입수하여 1, 4, 8, 10월 첫째주 1주일분에 대해 적재중량, 수송밀도, 수송 및 계류시간, 폐사율 등을 분석하였다. 두 업체의 평균 적재중량, 수송시간, 계류시간 및 폐사율은 각각 3.9 톤, 96 분, 478 분 및 0.6%이었다. 상자형과 컨테이너형 어리장의 수송중 폐사율은 각각 0.5와 0.6%로 컨테이너형이 유의적(p<0.05)으로 높았으며 적재중량 및 수송밀도($cm^2/kg$)또한 컨테이너형이 상자형에 비해 많고 높았다. 출하계절별 폐사율은 봄, 겨울이 각각 0.7, 0.8%로 여름, 가을의 0.5%에 비해 유의적으로 높은 경향을 나타내었다. 어리장 형태와 출하계절에 따른 폐사율은 상자형의 경우 봄, 겨울이 각각 0.8, 0.7%로 여름, 가을의 0.3, 0.4%에 비해 높았다. 컨테이너형은 봄, 가을, 겨울의 폐사율이 각각 0.7, 0.5, 0.8%로 유의적인 차이를 보였으며 봄과 여름, 여름과 가을은 유의적인 차이를 보이지 않았다. 출하 후 육계의 폐사율은 컨테이너형, 상자형이 비슷하였으며 계절은 봄, 겨울이 여름, 가을에 비해 높았다. 이는 다른 계절에 비해 계류장에서의 대기시간이 길고 가온시설이 없어 동사한 닭이 많기 때문으로 사료되었다. The current study was conducted to investigate the effect of types of crate and season on transport condition and mortality, and ultimately to identify the best practice for reducing economic lose. Total loading weight stocking density, transport and lairage times and mortality were surveyed from the management data sheet of two companies for each first week of January, April, August and October, An average loading weight, length of transport and lairage times and mortality were 3.9 ton, 96 min, 478 min and 0.6%, respectively. Mortality after lairage was not significant between two types of crate. In addition, container type crate showed higher loading weight and stocking density than box type one. Spring and winter had significantly higher mortality with 0.7 and 0.8%, respectively, then summer and fell of 0.5%. An interaction between crate type and season on mortality showed that mortality for box type on was higher in spring and winter with 0.8 and 0.7%, respectively, compared to summer and fall of 0,3 and 0.4% respectively. In the case of container type crate, spring, fall and winter had greatly different death into with 0.7, 0.5 and 0.8%, respectively, while there was no difference between spring and summer, and between summer and winter, Mortality after transportation was similar between both crate type, with higher rate for spring and winder than other seasons. The result was likely related to death of exposure due to extended waiting time without heating facility.

회원작품 - 목선아트센터

김동훈,Kim, Dong-Hun 대한건축사협회 2002 建築士 Vol.2002 No.10

회원작품 - 한국도예고등학교

김동훈,Kim, Dong-Hun 대한건축사협회 2003 建築士 Vol.2003 No.2

회원작품 - 경기도 국악당

김동훈,Kim, Dong-Hun 대한건축사협회 2004 建築士 Vol.2004 No.12

제올라이트 MFI 자일렌 분리막 연구 동향

김동훈,Kim, Donghun 한국막학회 2019 멤브레인 Vol.29 No.4

분자체 분리막은 분자크기의 기공을 갖는 다공성 분리막으로서 크기 또는 모양을 기반으로 혼합물을 분리하며, 높은 잠재적 에너지 효율과 뛰어난 분리능으로 많은 주목을 받아왔다. 그 중, 제올라이트 MFI 분리막은 가장 오랫동안 연구된 물질 중의 하나이며, 다양한 방면으로 개발된 기술들은 이후 다른 종류의 분자체 분리막 연구에도 많은 영향을 미쳤다. 본 총설에서는, 결정성 물질인 제올라이트 MFI의 결정 생성 및 성장을 제어하여 자일렌 이성질체 혼합물에 대한 분리막의 투과도와 선택도를 향상시킨 많은 방법들을 다룬다. 씨앗결정의 형태 제어, 결정의 효과적인 이차성장법, 씨앗결정의 코팅 방법, 결정의 방향성 제어, 이종원소 도입을 통한 결정구조의 유연성 제어, 결함 관리 등, 자일렌 이성질체 분리성능의 비약적 성능 향상을 가져온 기술들을 소개한다. Molecular sieve membranes separate molecules based on their size and/or shape and have been of high interest, due to their potentially high energy efficiency and high selectivity. Zeolite MFI membrane is one of the most-studied molecular sieve membranes and has affected following studies on other molecular sieve membranes. This review discusses the technical developments on the control of morphology, microstructure, and defect of MFI membranes, which have significantly improved xylene isomer separation performances. These include crystal morphology control, effective secondary growth, seed coating method, crystal orientation control, heteroatom doping, and defect healing method.