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Biogeochemical cyclic activity of bacterial arsB in arsenic-contaminated mines

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Journal of Environmental Sciences 2008年第11期20卷 1348-1355页

作者： CHANG jin-Soo kim Kyoung-Woong Department of Environment Science and Engineering Gwangju Institute of Science and Technology (GIST)261 Cheomdan-gwagiroBuk-guGwangjuRepublic of Korea.

Biogeochemical cyclic activity of the ars (arsenic resistance system) operon is arsB influx/effux encoded by the ecological of Pseudomonas *** suggests that studying arsenite-oxidizing bacteria may lead to a better understanding of molecular geomicrobiology,which can be applied to the bioremediation of arsenic-contaminated *** is the first report in which multiple arsB-binding mechanisms have been used on indigenous *** ArsB (strains OS-5; ABB83931; OS-19; ABB04282 and RW-28; ABB88574...

关键词： arsenic resistance bacteria arsB influx/efflux pump arsenic resistance system (ars) biogeochemical

Design of BPS digital frontend for software defined radio receiver

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Journal of Central South University 2015年第12期22卷 4709-4716页

作者：王洪梅 kim Jae-hyung 王法广 LEE Sang-hyuk 王雪松 School of Information and Electrical Engineering China University of Mining and Technology School of Mechatronics Changwon National University Collaborative Innovation Center of Intelligent Mining Equipment China University of Mining and Technology Electrical and Electronic Engineering Xi'an Jiaotong-Liverpool University

In radio receivers,complete implementation of the software defined radio(SDR) concept is mainly limited by *** on bandpass sampling(BPS) theory,a flexible digital frontend(DFE) platform for SDR receiver is *** order to increase the processing speed,Gigabit Ethernet was applied in the platform at speed of 5×10~8 bit/*** appropriate design of interpolant according to the position of input RF signals,multi-band receiving can be realized in the platform with suppression more than 35 d B without changing hardware.

关键词： software defined radio(SDR) digital frontend bandpass sampling

LiTFSI salt concentration effect to digest lithium polysulﬁdes for high-loading sulfur electrodes

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Journal of Energy Chemistry 2023年第3期78卷 574-581,I0015页

作者： jin-Kwang Song Moonsoo kim Seongbae Park Young-Jun kim SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwon 16419Republic of Korea Department of Nano Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea

Sulfur utilization improvement and control of dissolved lithium polysulﬁde(LiPS;Li_(2)S x,2 详细信息

Sulfur utilization improvement and control of dissolved lithium polysulﬁde(LiPS;Li_(2)S x,2

关键词： Lithium-sulfur battery Electrolyte concentration Li2S deposition High-loading sulfur electrode

High-Throughput Pb Recycling for Perovskite Solar Cells Using Biomimetic Whitlockite

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Energy & Environmental Materials 2023年第3期6卷 170-176页

作者： Jung Sug Hong Hee Jung kim Chang Hwun Sohn Oh Yeong Gong jin hyuk Choi Kang Hee Cho Gill Sang Han Ki Tae Nam Hyun Suk Jung Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwon 16419Korea

Pb contamination in aquatic environments causes severe pollution;therefore,harmless absorbents are *** this study,we report a novel synthesis of whitlockite(WH,Ca_(18)Mg_(2)(HPO_(4))_(2)(PO_(4))_(12)),which is the second most abundant biomineral in human bone,and its application as a high-performing Pb^(2+)***(HAP)and WH are prepared via a simple precipitation *** Pb2+absorption performance and mechanism of the synthesized biominerals are investigated in aqueous solutions at neutral *** results demonstrate that WH exhibits an excellent Pb2+absorption capacity of 2339 mg g^(−1),which is 1.68 times higher than the recorded value for ***,the absorbed Pb^(2+) ions are recycled into high-purity PbI_(2).This is employed as a precursor for the fabrication of perovskite solar cells(PSCs),resulting in a conversion efficiency of 19.00%comparable to that of commercial PbI2 powder(99.99%purity).Our approach provides an efficient way to remove Pb^(2+)ions from water and reuse them in the recycling of PSCs.

关键词： Pb absorption Pb recycling perovskite solar cells water purification whitlockite

Cold Signaling via the Two-Component Signaling System

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Molecular Plant 2013年第1期6卷 15-17页

作者： Jungmook kim jin Jeon Department of Bioenergy Science and Technology Chonnam National University Buk-Gu Gwangju 500-757 Korea

Two-component signal transduction is commonly used as a stimulus-response coupling mechanism to allow organisms such as eubacteria, archea, and a few eukaryotes to sense and respond to changes in many different environmental conditions （Stock et al., 2000）. Typically, the histidine protein kinase senses extracellular stimuli by autophosphorylation and transfers a phosphoryl group to the response regu- lator, resulting in activation of downstream proteins that elicit a specific response. In Arabidopsis plants, a multi-step two-component system is well established as a key element of plant hormone cytokinin signaling （To and Kieber, 2008）.

关键词： adaptations of plants Common Channel Signaling TCOF1 gene Common Cold Transcription Factors signals COLD Cold stress

Regulation of sleep by astrocytes in the hypothalamic ventrolateral preoptic nucleus

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Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： Jae-Hong kim Ruqayya Afridi Il-Sung Jang Maan Gee Lee Kyoungho Suk Brain Korea 21 four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocytes are functionally dynamic cells that support neurons in multiple ways throughout an organism’s *** astrocytic regulation of neuronal activity has been increasingly recognized in recent *** are now recognized as playing a more complex role than mere bystanders in the central nervous ***,their role in regulating the sleep neurocircuitry is not well *** this perspective,we highlight the role of astrocytes in sleep modulation,with a particular focus on regulatory mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly discuss recent literature reporting the role of VLPO astrocytes in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocytes

Mucinous adenocarcinoma of the buttock associated with hidradenitis:A case report

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World Journal of Clinical Cases 2020年第18期8卷 4200-4206页

作者： Sung jin kim Tae Gon kim Mi jin Gu Sohyun kim Department of Surgery College of MedicineYeungnam UniversityDaegu 42415South Korea Department of Plastic and Reconstructive Surgery College of MedicineYeungnam UniversityDaegu 42415South Korea Department of Pathology College of MedicineYeungnam UniversityDaegu 42415South Korea

BACKGROUND Mucinous adenocarcinomas of the buttock are rare and have an uncertain etiology and natural *** are usually related to chronic anal fistulas,hidradenitis suppurativa,or Crohn's ***,we report a case of mucinous adenocarcinoma associated with hidradenitis and contradictory immunochemistry *** SUMMARY A 62-year-old man complained of recurrent abscesses of the buttock for 3 *** had several scars and nodules in bilateral buttocks,with purulent *** skin lesions did not appear to originate from the *** patient was diagnosed with recurrent abscesses due to hidradenitis suppurativa at the first *** showed purulent and subsequent mucin discharge in the first operation and was diagnosed with mucinous *** examinations were performed to determine disease origin and *** were no significant findings or evidence of anal ***,he underwent wide local excision and V-Y advancement flap in the second *** final diagnosis was mucinous adenocarcinoma without any evidence of anal *** immunochemistry test results were negative for cytokeratin(CK)7 and positive for CK20 and CDX2,with a colorectal origin.A pathologist suggested that the disease originated from a chronic anal *** patient has remained free of recurrence for 24 *** Although the patient with mucinous adenocarcinoma showed an atypical course,immunochemistry helped detect the disease origin.

关键词： Mucinous adenocarcinoma Anal fistula Hidradenitis suppurativa Wide excision Immunochemistry test Case report

Atomic layer deposition for nanoscale oxide semiconductor thin film transistors:review and outlook

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International Journal of Extreme Manufacturing 2023年第1期5卷 153-180页

作者： Hye-Mi kim Dong-Gyu kim Yoon-Seo kim Minseok kim jin-Seong Park Division of Materials Science and Engineering Hanyang University222 Wangsimni-roSeongdong-guSeoul 04763Republic of Korea

Since the first report of amorphous In–Ga–Zn–O based thin film transistors,interest in oxide semiconductors has *** offer high mobility,low off-current,low process temperature,and wide flexibility for compositions and ***,depositing oxide semiconductors using conventional processes like physical vapor deposition leads to problematic issues,especially for high-resolution displays and highly integrated memory *** approaches have limited process flexibility and poor conformality on structured *** layer deposition(ALD)is an advanced technique which can provide conformal,thickness-controlled,and high-quality thin film ***,studies on ALD based oxide semiconductors have dramatically increased *** so,the relationships between the film properties of ALD-oxide semiconductors and the main variables associated with deposition are still poorly understood,as are many issues related to *** this review,to introduce ALD-oxide semiconductors,we provide:(a)a brief summary of the history and importance of ALD-based oxide semiconductors in industry,(b)a discussion of the benefits of ALD for oxide semiconductor deposition(in-situ composition control in vertical distribution/vertical structure engineering/chemical reaction and film properties/insulator and interface engineering),and(c)an explanation of the challenging issues of scaling oxide semiconductors and ALD for industrial *** review provides valuable perspectives for researchers who have interest in semiconductor materials and electronic device applications,and the reasons ALD is important to applications of oxide semiconductors.

关键词： atomic layer deposition(ALD) oxide semiconductor thin film transistor(TFT)

Measurements of Formaldehyde and TVOC Emission from Paints and Coating Materials using Small Chamber Method for Building Composites

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Journal of Wuhan University of Technology(Materials Science) 2012年第1期27卷 120-125页

作者： jin-A kim Sumin kim Hyun-Joong kim Janghoo SEO National Instrumentation Center for Environmental Management Seoul National University Seoul 151-921 Republic of Korea Laboratory of Adhesion & Bio-Composites Program in Environmental Materials Science Seoul National University Seoul 151-921 Republic of Korea Building Environment & Materials Lab School of Architecture Soongsil University Seoul 156-743 Republic of Korea School of Architecture Chosun University Gwangju 507-759 Korea

An optimal test method for paint is proposed; additionally, the Field and Laboratory Emission Cell （FLEC） method used in Europe is applied as a substitute for the 20 L small chamber method. The emission factors of total volatile organic compounds （TVOC） and formaldehyde from oil-based paint, emulsion paint, and water-dispersion paint with a coating weight of 300 g/m2, cured for 24/48 hours, were measured using the 20 L small chamber method. The emission rate of TVOC and formaldehyde from all paints began to stabilize after approximately 7 days after 24/48 hours of curing even though Korean standards stipulate that paint should be measured and analyzed after the third day of application. The emission factor of TVOC and formaldehyde from oil-based, emulsion, and water-dispersion paints were also measured using the FLEC method. There was good correlation between the 20 L small chamber method and the FLEC method for oil-based, emulsion, and water-dispersion paint emissions. With the FLEC method, using paints prepared under identical conditions, the emission rate was stable 24 hours after installation of samples because the air flow rate of FLEC is much higher than that of a 20 L small chamber, and the relative cell volume of FLEC is much smaller than that of a 20 L small chamber.

关键词： formaldehyde TVOC paints coating materials FLEC