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Journal of Environmental Sciences 2010年第9期22卷 1475-1480页

作者： in chul kong Department of Environmental Engineering Yeungnam University

This study was conducted to develop methods for the application of an immobilized bioluminescence strain （KG1206）, preserved by deep-freezing （DF）, for the monitoring of contaminated environments. The immobilized cells, preserved by DF, required approximately 2 hr for reconstitution of their activity. A large reduction in bioluminescence was observed due to the DF process; 0.07-0.58 times that of the non deep-frozen （NDF） immobilized strain. The decreased bioluminescence activity induced by the DF process was enhanced by the stimulants, sodium lactate （SL） and KNO3. However, regardless of the inducer chemical tested, the immobilized strain modified with KNO3 consistently produced greater bioluminescence than that treated with SL, in the range of 3.0-10.7 （avg. 6.7± 3.69） and 1.2-4.2 （avg. 2.4 ± 1.47） times that of control, respectively. All KNO3 treatments of contaminated groundwater samples also resulted in an increase in bioluminescence activity, but the rate of stimulation varied for each sample. Also, no strong linear correlation was observed between the bioluminescence and the total concentration of an inducer, which may related to the complex characteristics of the environmental samples. Overall, the results demonstrated the ability of immobilized genetically engineered bacteria, preserved by DF, to measure a specific group of environmental contaminants using a stimulating agent （KNO3）, suggesting the potential for its preliminary application in a field-ready bioassay.

关键词： bioluminescence biomonitoring deep-freezing groundwater immobilization

Joint effects of heavy metal binary mixtures on seed germination,root and shoot growth,bacterial bioluminescence,and gene mutation

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Journal of Environmental Sciences 2013年第5期25卷 889-894页

作者： in chul kong Department of Environmental Engineering Yeungnam UniversityKyungbuk 712-749Korea

This investigation was to assess the joint effects of metal binary mixtures on seed germination,root and shoot growth,bacterial bioluminescence,and gene mutation based on the one toxic unit（1 TU）*** sensitivities and orders of toxicity of metal mixtures were observed among the *** general,mostly additive or antagonistic effects were observed,while almost no synergistic effects by the binary metal mixtures in all ***,the combined effects of heavy metals in the different bioassays were difficult to generalize since they were dependent on both chemical type and the organism used in each ***, these results indicate that a battery of bioassays with mixture chemicals as opposed to just a single assay with single metal is a better strategy for the bioassessment of environmental pollutants.

关键词： binary mixture bioluminescence heavy metal revertant mutation seed germination toxicity

Ecotoxicity evaluation of Cu-and Fe-CNT complexes based on the activity of bacterial bioluminescence and seed germination

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Journal of Environmental Sciences 2018年第5期30卷 198-205页

作者： in chul kong Kyung Seok Ko Mun Hui Lee Ji Hwoan Lee Young-Hwan Han Department of Environmental Engineering Yeungnam UniversityGyungsan 38541Republic of Korea Geologic Environment Division Korea Institute of Geoscience and Mineral Resources(KIGAM)Daejeon 34132Republic of Korea School of Materials Science and Engineering Yeungnam University Gyungsan 38541Republic of Korea International School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430079China

The toxic effects of the composites of Fe^0 and Cu^0 with different percentages of CNTs were examined based on the activity of bacterial bioluminescence and seed germination. In terms of the EC50 values, the toxic effects of Cu^0 on bacterial bioluminescence and seed germination were approximately 2 and 180 times greater than that of Fe^0, respectively. The toxicity increased with increasing CNT content in the Cu-CNT mixtures for both organisms,whereas opposite results were observed with Fe-CNT mixtures. The mean toxic effects of Cu-CNT（6%） were approximately 1.3–1.4 times greater than that of Cu-CNT（0%）, whereas the toxic effects of Fe-CNT（6%） were approximately 2.1–2.5 times lower than that of Fe-CNT（0%） for both the bioluminescence activity and seed germination. The causes of this phenomenon are unclear at this point. More research will be needed to elucidate the mechanism of the toxicity of nano-mixture materials and the causes of the different patterns of toxicity with Cu-and Fe-CNT mixtures.

关键词： Metal-CNT complex Bioluminescence Seed germination Toxic effect

A renormalization group approach to crowd psychology and inter-group coupling in social many-body systems

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Chinese Science Bulletin 2012年第2期57卷 247-252页

作者： KIM chul Koo LEE kong-Ju-Bock CHUNG Myung-Hoon Institute of Physics and Applied Physics Yonsei University Department of Physics Ewha Woman's University Department of Physics Hongik University

By adopting majority rule within a renormalization group approach,we can show that the strength of inter-group interaction in a social system either grows or shrinks monotonically with increasing group size,depending on the initial coupling strength of individuals in the *** contrasts with the findings of previous studies in which the strength of the interaction grows with group size regardless of the initial *** approach clearly demonstrates that the phenomena of crowd psychology,such as an extreme anti-reaction between different ethnic or ideological groups,could be a consequence of the many-particle nature of social systems when the initial strength of the interaction is larger than a critical *** effect of neutral opinion holders is critically examined using the spin-one Ising *** critical size of the population of neutral opinion holders,that can prevent crowd polarization,depends on the block spin rule.

关键词：重整化群方法社会制度耦合强度从众心理多体系统群体相互作用初始强度

A renormalization group approach to crowd psychology and inter-group coupling in social many-body systems

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Science Bulletin 2012年第Z1期 249-254页

关键词： renormalization crowd psychology block spin

Comparison of Specific Activity and Cytopathic Effects of Purified 33-Kda Serine Proteinase from Acanthamoeba Strains with Different Degree of Virulence

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Comparison of Specific Activity and Cytopathic Effects of Pu...

A Case Study of Adolescent Identity Design Education by Design Thinking–Focus on Mind Map and Persona

12th International Congress of Protozoology

作者： Won-Tae Kim Hyun-Hee kong Young-Ran Ha Yeon-chul Hong Hae-Jin Jeong Hak-Sun Yu Dong-II Chung Department of Parasitology Kyungpook National University School of Medicine Taegu 700-422 Department of Parasitology Kyungpook National University School of Medicine Taegu 700-422 Department of Parasitology Kyungpook National University School of Medicine Taegu 700-422 Department of Parasitology Kyungpook National University School of Medicine Taegu 700-422 Department of Parasitology Pusan National University School of Medicine Pusan 602-702KOREA Department of Parasitology Pusan National University School of Medicine Pusan 602-702KOREA Department of Parasitology Kyungpook National University School of Medicine Taegu 700-422

＜正＞The pathogenic mechanism of granulomatous amoebic encephalitis （GAE） and amoebic keratitis （AK） by Acanthamoeba has yet to be clarified. Protease has been recognized to play an important role in the pathogenesis of GAE and AK. In the present study, we have compared specific activity and cytopathic effects of purified 33-kDa serine proteinases from Acanthamoeba strains with different degree of virulence (4. healyi OC-3A, A. lugdunensis KA/E2, A. castellanii Neff. Trophozoites of three strains

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A Case Study of Adolescent Identity Design Education by Desi...

Realization of high-performance blue organic light-emitting diodes using multi-emissive layers

2012 International Conference in Humanities,Social Sciences and Global Business Management(ISSGBM 2012)

作者： Jung,Eui-chul Kim,Eun-Jeong Jang,Yung-Joo

Recently, design thinking is applied as a creative method for problem solving in different fields. The research was held to figure out if the design thinking can help in developing the ego identities and future career exploration of the high school students. The importance of the adolescent identity formation was demonstrated with different theories, and the efficiency of an expressive education method had addressed by many scholars. The research deals with the case study of the program from the 36 th creative workshop held under the joint auspices of Korean Foundation for the Advancement of Science and Creativity and Yonsei University. The theme of the workshop was "Identity Design" targeting high school students and their parents. The program was designed to educate students to find out their own identities and explore their potential career paths with the creative design thinking methods, a mind map and a persona design.

关键词： Identity design Adolescent identity formation High school Mind map Persona Design

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Chinese Optics Letters 2014年第1期12卷 55-58页

作者： Ju-An Yoon You-Hyun Kim Nam Ho Kim chul Gyu Jhun Song Eun Lee Young Kwan Kim Fu Rong Zhu Woo Young Kim Department of Green Energy & Semiconductor Engineering Hoseo University Department of Information Display Hongik University Department of Physics Hong Kong Baptist University Department of Engineering Physics McMaster University

High-performance blue organic light-emitting diodes （OLEDs） are developed. A concept of using multiple-emissive layer （EML） configuration is adopted. In this letter, bis（2-methyl-8-quinolinolate）-4- （phenylphenolato）A1 （BAlq） and 9,10-di（naphtha-2-yl）anthracene （ADN）, which serve n- and p-type EMLs, respectively, are used to evaluate and demonstrate the multi-EML concept for blue OLEDs. The thickness effect of individual EMLs and the number of EMLs, e.g., triple and quadruple EML components, on the power efficiency of blue OLEDs are systematically investigated. To illustrate the point, the total thickness of the emissive region in different blue OLEDs are kept contact at 30 nm for comparison. The power efficiency of blue OLEDs with a quadruple EML structure of BAlq/ADN/BAlq/ADN is about 40% higher than that of blue OLEDs having a single EML unit. The Commission Internationale deL＇eclairage color coordinates of multi-EML OLEDs have values that represent the average of blue emissions from individual EMLs of BAlq and ADN.

关键词： OLEDs blue Realization of high-performance blue organic light-emitting diodes using multi-emissive layers high

The structure of acidic ribosomal P protein and Its Interaction with ribosome-inactivating protein

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The structure of acidic ribosomal P protein and Its Interact...

Bulk-Si photonics technology for DRAM interface[Invited]

21st IUBMB and 12th FAOBMB International Congress of Biochemistry and Molecular Biology

作者： Kam-Bo Wong Ka-Ming Lee Priscllia.Hui-Mei Too Amanda Nga-Sze Mak Pang-chul Shaw Department of Biochemistry and Centre for Protein Science and Crystallography Faculty of ScienceThe Chinese University of Hong Kong

＜正＞Ribosome-inactivating proteins（RIPs） inhibit protein synthesis by enzymatically depurinating Adenine-4324 residue at the 28s *** systematic deletion analysis,our group has found that trichosanthin（TCS）,a ribosome-inactivating protein with multiple pharmacological properties,interacts with the C-terminal region of the ribosomal P2 protein,which is conserved among

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Photonics Research 2014年第3期2卷 S0025-S0033页

作者： Hyunil Byun Jinkwon Bok Kwansik Cho Keunyeong Cho Hanmei Choi Jinyong Choi Sanghun Choi Sangdeuk Han Seokyong Hong Seokhun Hyun TJJeong Ho-chul Ji In-Sung Joe Beomseok Kim Donghyun Kim Junghye Kim Jeong-Kyoum Kim Kiho Kim Seong-Gu Kim Duanhua kong Bongjin Kuh Hyuckjoon Kwon Beomsuk Lee Hocheol Lee Kwanghyun Lee Shinyoung Lee Kyoungwon Na Jeongsik Nam Amir Nejadmalayeri Yongsang Park Sunil Parmar Junghyung Pyo Dongjae Shin Joonghan Shin Yong-hwack Shin Sung-Dong Suh Honggoo Yoon Yoondong Park Junghwan Choi Kyoung-Ho Ha Gitae Jeong Samsung Electronics 1 SamsungjeonjaroHwasungshiGyoung-gido445-330South Korea

We present photonics technology based on a bulk-Si substrate for cost-sensitive dynamic random-access memory(DRAM)optical interface *** summarize the progress on passive and active photonic devices using a local-crystallized Si waveguide fabricated by solid phase epitaxy or laser-induced epitaxial growth on bulk-Si *** process of integration of a photonic integrated circuit(IC)with an electronic IC is demonstrated using a 65 nm DRAM periphery process on 300 mm wafers to prove the possibility of seamless integration with various complementary metal-oxide-semiconductor *** the bulk-Si photonic devices,we show the feasibility of high-speed multidrop interface:the Mach–Zehnder interferometer modulators and commercial photodetectors are used to demonstrate four-drop link operation at 10 Gb∕s,and the transceiver chips with photonic die and electronic die work for the DDR3 DRAM interface at 1.6 Gb∕s under a 1∶4 multidrop configuration.

关键词： interferometer waveguide interface