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CO_(2)-adsorbent spongy electrode for non-aqueous Li–O_(2) batteries

Journal of Energy Chemistry 2022年第2期31卷 646-653页

作者： Yiseul Yoo giseung Lee min-gi Jeong Hun-gi Jung Sunghee Shin Dongjin Byun Taeeun Yim Hee-Dae Lim Center for Energy Storage Research Korea Institute of Science and Technology(KIST)Hwarang-ro 14-gil 5Seongbuk-guSeoul 02792Republic of Korea Department of Materials Science and Engineering Korea University145 Anam-roSeongbuk-guSeoul 02841Republic of Korea Department of Chemistry Incheon National University119 Academy-roYeonsu-guIncheon 22012Republic of Korea Department of Chemical and Biological Engineering Korea UniversitySeoul 02841Republic of Korea

Regulation of the Li_(2)CO_(3) byproduct is the most critical challenge in the field of non-aqueous Li–O_(2) *** considerable efforts have been devoted to preventing Li_(2)CO_(3) formation,no approaches have suggested the ultimate solution of utilizing the clean Li_(2)O_(2) reaction instead of that of Li_(2)CO_(3).Even if extremely pure O_(2) is used in a Li–O_(2) cell,its complete elimination is impossible,eventually generating CO_(2) gas during *** this paper,we present the new concept of a CO_(2)-adsorbent spongy electrode(CASE),which is designed to trap the evolved CO_(2) using adsorption *** candidates composed of amine functional groups(–NH2)for capturing CO_(2) were screened,with quadrapurebenzylamine(QPBZA)exhibiting superior CO_(2)-adsorbing ability among the proposed ***,we fabricated the CASE by sandwiching QPBZA between porous carbon layers,which facilitated the transport of gaseous *** new electrode was demonstrated to effectively capture the evolved CO_(2) during charge,therefore altering the reaction pathways to the ideal *** is highly advantageous to mitigate the undesirable CO_(2) incorporation in the next discharge,resulting in improved *** novel concept of a CO_(2)-sponging electrode provides an alternative route to the realization of practically meaningful Li–O_(2) batteries.

关键词： Li-O_(2)battery Benzylamine CO_(2)adsorption Li_(2)CO_(3) Li_(2)O_(2) CO_(2)-sponging electrode

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Delayed inflammatory response evoked in nasal alloplastic implants after COVID-19 vaccination: A case report

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World Journal of Clinical Cases 2022年第23期10卷 8298-8303页

作者： min-gi Seo Eun Kyung Choi Kyu Jin Chung Department of Plastic and Reconstructive Surgery College of MedicineYeungnam UniversityDaegu 42415South Korea Department of Anesthesiology and Pain Medicine College of MedicineYeungnam UniversityDaegu 42415South Korea

BACKGROUND Delayed inflammatory reactions(DIRs)in alloplast rhinoplasty are a rare complication that may occur several months to years after *** exact causes and mechanisms are unclear,but several triggering factors,including infections,trauma,dental procedures,and vaccination,have been *** SUMMARY A 39-year-old male patient who had undergone augmentation rhinoplasty 8 years ago had DIRs after the administration of the first dose of the mRNA Pfizer coronavirus disease 2019(COVID-19)*** suddenly had tender,erythematous swelling on his face 6 d after *** there was no improvement in the patient’s condition after the conservative treatment,surgical removal of an alloplastic nasal implant was *** after the surgery,the DIRs and accompanying symptoms ameliorated rapidly.A histological study conducted during surgery was fibrosis and small fragments of the hyaline *** The correlation between DIRs and COVID-19 vaccination has not been reported yet and the exact mechanism is *** the uncontrolled inflammatory reactions on the nose leave serious sequelae,surgeons should be conscious of the correlation between COVID-19 vaccines and DIRs associated with nasal alloplastic *** further histological or microbiological studies should be performed to determine the cause of DIRs.

关键词： Delayed inflammatory reactions Alloplast rhinoplasty Silicone COVID-19 Vaccination Case report

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Examination of in vivo mutagenicity of sodium arsenite and dimethylarsinic acid in gpt delta rats

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Journal of Environmental Sciences 2016年第11期28卷 125-130页

作者： Masaki Fujioka min gi Satoko Kawachi Kumiko Tatsumi Naomi Ishii Kenichiro Doi Anna Kakehashi Hideki Wanibuchi Department of Molecular Pathology Osaka City University Graduate School of Medicine

Arsenic is a well-known human bladder and liver carcinogen, but its exact mechanism of carcinogenicity is not fully understood. Dimethylarsinic acid（DMAV） is a major urinary metabolite of sodium arsenite（i As~Ⅲ） and induces urinary bladder cancers in rats. DMAVand i As~Ⅲare negative in in vitro mutagenicity tests. However, their in vivo mutagenicities have not been determined. The purpose of present study is to evaluate the in vivo mutagenicities of DMAVand i As~Ⅲin rat urinary bladder epithelium and liver using gpt delta F344 ***-week old male gpt delta F344 rats were randomized into 3 groups and administered 0,92 mg/L DMAV, or 87 mg/L i As~Ⅲ（each 50 mg/L As） for 13 weeks in the drinking water. In the mutation assay, point mutations are detected in the gpt gene by 6-thioguanine selection（gpt assay） and deletion mutations are identified in the red/gam genes by Spi-selection（Spi-assay）. Results of the gpt and Spi-assays showed that DMAVand i As~Ⅲhad no effects on the mutant frequencies or mutation spectrum in urinary bladder epithelium or liver. These findings indicate that DMAVand i As~Ⅲare not mutagenic in urinary bladder epithelium or liver in rats.

关键词： Dimethylarsinic acid Sodium arsenite In vivo mutagenicity Urinary bladder epithelium gpt delta rat

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Population dynamics of marine ciliate Euplotes vannus (Protozoa, Ciliophora) in different artificial seawaters

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Chinese Journal of Oceanology and Limnology 2011年第1期29卷 109-117页

作者：许恒龙朱明壮姜勇高珊 min gi-Sik AL-RASHEID Khaled A.S. Laboratory of Protozoology Institute of Evolution and Marine BiodiversityOcean University of China Department of Biological Sciences Inha University Zoology Department King Saud University

To study population dynamics of marine ciliates in different artificial seawaters （ASW）, the population growth dynamics of a common marine ciliate Euplotes vannus were investigated using beef extract media and rice media for five types of ASW and natural seawater （NSW）. The results show that：（1） the population growth rate was in the order of NSW〉Flack ASW〉Nakamula ASW〉Schmadz ASW〉Oshima ASW〉Subow ASW and was considerably higher in rice media than in beef extract media （apart from Subow ASW）; （2） the maximum density of E. vannus in stationary phase in each treatment was ranked as Hack ASW〉Nakamula ASW〉Schmadz ASW〉NSW〉Oshima ASW〉Subow ASW, and was again higher in rice media than in beef extract media （except for Subow ASW）; （3） the exponential and stationary phases were longer in rice media than in beef extract media; （4） strains of E. vannus that had been domesticated for 〉1 year in ASW grew significantly slower, with lower maximum density and longer stationary phase than those isolated and maintained in NSW. It was demonstrated that：（1） E. vannus may grow well in Flack, Nakamula and Schmads ASW compared with NSW （mainly in terms of growth rate）; and （2） Oshima ASW is the preferred choice for stock cultures of E. vannus, but the ASWs Flack, Nakamula and Schmadz are preferred for mass culture. These findings suggest that these three ASWs are effective for the cultivation of marine protozoa for experimental studies on ecology, toxicology and molecular biology.

关键词： artificial seawater culture ecology marine ciliate population dynamics

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Synthesis of Al-doped ZnO Nanorods via Microemulsion Method and Their Application as a CO Gas Sensor

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Journal of Materials Science & Technology 2015年第6期31卷 639-644页

作者： Sang Kyoo Lim Seong Hui Hong Sung-Ho Hwang Won Mi Choi Soonhyun Kim Hyunwoong Park min gi Jeong Division of Nano & Bio Technology Daegu Gyeongbuk Institute of Science and Technology(DGIST) School of Energy Engineering Kyungpook National University Department of Advanced Organic Materials Engineering Yeungnam University

Aluminum doped ZnO(AZO) nanorods were synthesized by microemulsion method with different types of *** phase and the morphology of the above nanorods were investigated by scanning electron microscopy(SEM) and X-ray diffraction(XRD).SEM observations showed that the ZnO nanorods had diameters around about 50—200 nm and lengths up to several *** CO gas sensing properties of the AZO nanorods were tested at operating temperatures of 200,300,350 and 400 ℃.It was found that AZO nanorods based sensor exhibited the highest sensitivity to CO at 350℃.

关键词： Zinc oxide Nanorod Microemulsion Aluminum CO and g

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Temporal population dynamics of dinoflagellate Prorocentrum minimum in a semi-enclosed mariculture pond and its relationship to environmental factors and protozoan grazers

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Chinese Journal of Oceanology and Limnology 2010年第1期28卷 75-81页

作者：许恒龙 min gi-Sik CHOI Joong-Ki 朱明壮姜勇 AL-RASHEID Khaled A.S. Laboratory of Protozoology KLMOcean University of China Department of Biological Sciences Inha University Department of Oceanography Inha University Zoology Department King Saud University

The ecological processes and interrelationships between protists,either autotrophic or heterotrophic,and environmental factors in mariculture ponds are largely *** study investigated the temporal dynamics of potentially harmful dinoflagellate,Prorocentrum minimum (Pavillard) Schiller,and its relationship to physico-chemical factors and protozoan grazers over a complete cycle in a semi-enclosed shrimp-farming pond near Qingdao,Northern *** occurred frequently in low numbers from June to August,followed by a sharp increase from the middle of August,reaching a single maximum peak value of 2.2×105 cells L-1 in *** variation in abundance was positively correlated with dissolved nitrogen,but showed a significant inverse relationship to abundance of the dominant ciliates,Tintinnopsis lohmanni and Askenasia *** results provide statistical evidence that the number of *** increased with increasing nitrogen,and the suppression or shortening of algal bloom may be associated with protozoan grazers,such as Tintinnopsis lohmanni,in mariculture ponds.

关键词： dinoflagellate harmful algae Prorocentrum minimum shrimp-farming

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Temporal dynamics of phytoplankton communities in a semi-enclosed mariculture pond and their responses to environmental factors

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Chinese Journal of Oceanology and Limnology 2010年第2期28卷 295-303页

作者：许恒龙 min gi-Sik CHOI Joong-Ki AL-RASHEID Khaled A. S. 林晓凤朱明壮 Laboratory of Protozoology KLM Ocean University of China Department of Biological Sciences Inha University Department of Oceanography Inha University Zoology Department King Saud University Laboratory of Protozoology Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education South China Normal University

Variations in physical-chemical factors, species composition, abundance and biomass of nano-and micro-phytoplankton assemblages, as well as their responses to environmental factors, were investigated over a complete cycle (6 months) in a semi-enclosed shrimp-farming pond near Qingdao, northern China. The aim was to establish the temporal patterns of phytoplankton communities and to evaluate protists as suitable bioindicators to water quality in mariculture systems. A total of 34 taxa with nine dominant species were identified, belonging to six taxonomic groups (dinoflagellates, diatoms, cryptophyceans, chlorophyceans, euglenophyceans and chrysophyceans). A single peak of protist abundance occurred in October, mainly due to chlorophyceans, diatoms and chrysophyceans. Two biomass peaks in July and October were primarily due to dinoflagellates and diatoms. Temporal patterns of the phytoplankton communities significantly correlated with the changes in nutrients, temperature and pH, especially phosphate, either alone or in combination with NO3-N and NH3-N. Species diversity, evenness and richness indices were clearly correlated with water temperature and/or salinity, whereas the biomass/abundance ratio showed a significant correlation with NO3-N. The results suggest that phytoplankton are potentially useful bioindicators to water quality in semi-enclosed mariculture systems.

关键词： bioindicator phytoplankton environmental stress microbial ecology shrimp-fanning temporal variations

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Fully tunable Fabry-Pérot cavity based on MEMS Sagnac loop reflector with ultra-low static power consumption

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Microsystems & Nanoengineering 2024年第4期10卷 355-365页

作者： Young Jae Park Man Jae Her Youngjae Jeong Dong Ju Choi Dong Uk Kim min gi Lim Myung Seok Hong Hyug Su Kwon Kyoungsik Yu Sangyoon Han Department of Robotics and Mechatronics Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea School of Electrical Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Agency for Defense Development DaejeonRepublic of Korea

The Fabry-Pérot interferometer,a fundamental component in optoelectronic systems,offers interesting applications such as sensors,lasers,and *** this work,we show a tunable Fabry-Pérot cavity consisting of tunable Sagnac loop reflectors(SLRs)and phase shifters based on electrostatic microelectromechanical(MEMS)*** fabrication process of the device is compatible with the standard wafer-level silicon photonics fabrication *** electrostatic actuation mechanism provides well-balanced,scalable pathways for efficient tuning *** extinction ratio of the continuously tunable SLRs’reflectivity is larger than 20 *** 2πphase shifting is achieved,and response times of all the components are less than 25μ*** actuators have extremely low static power,measuring under 20 fW and the energy needed for tuning is both below 20 pJ.

关键词： tunable tuning interferometer

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Alterations of Gefitinib Pharmacokinetics by Co-administration of Herbal Medications in Rats

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Chinese Journal of Integrative Medicine 2018年第6期24卷 460-466页

作者： Kwon-Yeon Weon min gi Kim Soyoung Shin Tae Hwan Kim Sang Hoon Joo Eunsook Ma Seok Won Jeong Sun Dong Yoo Yu Seok Youn Beom Soo Shin College of Pharmacy Catholic University of Daegu School of Pharmacy Sungkyunkwan University College of Pharmacy Wonkwang University

Objective： To evaluate the potential pharmacokinetic interactions of the anticancer agent gefitinib （Iressae） and the oriental medications Guipi Decoction （归脾汤, GPD, Guibi-tang in Korean） and Bawu Decoction （八物汤, BWD, Palmul-tang in Korean）. Methods： Methylceliulose （MC, control）, GPD （1,200 mg/kg）, or BWD （6,000 mg/kg） was orally administered to rats either as a single dose or multiple doses prior to gefitinib administration. To examine the effects of a single dose of the herbal medicines, gefitinib （10 mg/kg） was orally administered after 5 min or 1 h of MC or the herbal medicine pretreatments. To examine the effects of the multiple doses of the herbal medicines, gefltinib （10 mg/kg） was orally administered following 7 consecutive days of the administration of MC or each herbal medicine. The plasma concentrations of gefitinib were determined with liquid chromatography-tandem mass spectrometry assay. The plasma concentration-time profiles of gefitinib were analyzed with a noncompartmental analysis. Results： Gefitinib was rapidly absorbed and showed a mono- exponential decline with an elimination half-life of 3.7-4.1 h. The pharmacokinetics of gefitinib was not affected by GPD pretreatment. However, a significantly lower maximum plasma concentration （Crux, P〈0.05） and area under the curve （P〈0.05）, and a delayed time to reach Cmax （Tmax, P〈0.01） were observed in both single- and multiple- dose BWD-pretreated rats compared with the control rats. Conclusions： BWD and not GPD might delay and interfere with gefitinib absorption. Further evaluations of the clinical significance of these findings are needed.

关键词： herb-drug interaction pharmacokinetics gefitinib Guipi Decoction Bawu Decoction

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Design of a Stabilizing Controller using T-S Fuzzy model for a rotary inverted pendulum

Design of a Stabilizing Controller using T-S Fuzzy model for...

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第二届亚洲机械电子学学术会议

作者： Myung-Gong Sohn Cheon Don Son Hyung gi min Sung-Ha Kwon Eun Tae Jeung Department of Control & Instrumentation Engineering Changwon National University Sarim-dong ChangwonKyungnamKorea

We design a stabilizing controller for a rotary inverted pendulum system using the conception of parallel distribution compensation(PDC)and linear matrix inequalities(LMIs)based on T-S fuzzy modeling *** we show the result of the simulation and experimentation of a rotary inverted pendulum system in comparison with LMIs base on linearized dynamics and state feedback control using LQR problem.

关键词： T-S Fuzzy inverted pendulum PDC LMI

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