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Enhancement of Power Generation in Microbial Fuel Cells through supplementation of <i>Platycodon grandiflorum</i>in Doraji Roots

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Journal of sustainable Bioenergy systems 2019年第4期9卷 169-178页

作者： Jung-In park Hyunjin Kim Dae Kyung Go Peter s. park sang Heon Lee Min Jung Koh Jonathan Jo Donghoon Lee seungshin Lee Paul s. Chung Fuzbien Technology Institute Rockville MD USA Youth with Talents Fairfax VA USA st. Johnsbuury Academy Jeju Korea Department of Biology School of Arts and Sciences Cornell University Ithaca NY USA school of Arts and sciences Johns Hopkins Baltimore MD USA

The current study reports the evidence of enhancement in power generation from cellulosic biomass in microbial fuel cell (MFC) systems by supplementing dried Doraji (Platycodon grandiflorum) roots powder. Mediator-less two chamber H-type MFCs were prepared using rumen fluid as anode inocula to convert finely ground pine tree (Avicel) at 2% (w/v) to electricity. Dried Doraji roots were ground to pass 1 mm sieve and added to the anode of MFC at 0.1% w/v dosage for treatment. MFC power and current across an external resistor were measured daily for 10 d. At the end of incubation on d10, collected gases were measured for total gas volume and analyzed for gas composition on gas chromatography. supplementation of Doraji roots powder to MFC anode chamber increased power generation and CO2 production. Over the 10d experimental period, power density normalized to anode surface area were between 17.0 and 37.7 with average of 32.5 mW/m2 in Doraji MFCs, and between 16.8 and 19.8 with average of 18.2 mW/m2 in control group. CO2 production increased and methane to CO2 ratio decreased in Doraji root treatment comparing to control group. These observations imply that Doraji root components would inhibit methanogenesis and alter microbial fermentation of cellulose compounds favorable to produce bioenergy efficiently in MFC.

关键词： MFC Platycodon grandiflorum

Case study of Middle East Respiratory syndrome (MERs-CoV) Outbreak in south Korea and Future Implications

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Advances in Infectious Diseases 2020年第2期10卷 76-89页

作者： Woo Hyung Lee David Ahn Kunmin Kim Peter s. park seog In Moon Hark Joon Lee David park Hyun seung shin Eunice Kang Daniel Choo David s. Chung Biotechnology School of Science Hong Kong University of Science of Technology Hong Kong China Department of Economics William & Mary Williamsburg VA USA Department of Chemistry and Biochemistry University of California San Diego CA USA Department of Biology College of Art and Science Biology Cornell University Ithaca NY USA Department of Biology Amherst College Amherst MA USA Department of Biology Washington University St. Louis MO USA College of Art and science Biology Emory University Atlanta GA USA Division of Biomedical Informatics University of Virginia Charlottesville VA USA Youth with Talents Fairfax VA USA school of Medicine University of Virginia Charlottesville VA USA

The Middle East Respiratory syndrome (MERs-CoV) is a potentially fatal respiratory viral infection that has had outbreaks in the Middle East and Asia region starting in 2012. As recent as 2015, MERs had outbreaks in south Korea, resulting in 36 deaths among 186 infected patients. The purpose of this thesis is to gain an in-depth understanding of how this viral infection behaves in outbreaks and how it is spread around the globe. To gain insight, real time analysis was performed under a case study methodology based on pooled data from the Ministry of Health & Welfare of south Korea. We calculated a striated mortality rate based on gender, age, and the presence of pre-existing health conditions ranging from heart, lung, and kidney diseases. We found that MERs outbreak follows the pattern of a point source outbreak, largely spurred by the patient-referral system under the universal healthcare system in south Korea. The purpose of this case is to discuss the benefits and challenges of such patient referral system, and to offer a possible solution in improving transparency between healthcare providers and the government under a universal healthcare system to prevent future outbreaks.

关键词： Infectious Diseases Respiratory Viral Infections Public Health Disease Prevention

Light-Material Interactions Using Laser and Flash sources for Energy Conversion and storage Applications

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Nano-Micro Letters 2024年第12期16卷 468-514页

作者： Jung Hwan park srinivas Pattipaka Geon-Tae Hwang Minok park Yu Mi Woo Young Bin Kim Han Eol Lee Chang Kyu Jeong Tiandong Zhang Yuho Min Kwi-Il park Keon Jae Lee Jungho Ryu Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering)Kumoh National Institute of Technology61Daehak-RoGumiGyeongbuk 39177Republic of Korea Department of Materials science and Engineering Pukyong National University45Yongso-RoNam-GuBusan 48513Republic of Korea Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials science and Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju 54896JeonbukRepublic of Korea school of Electrical and Electronic Engineering Harbin University of Science and TechnologyHarbin 150080People’s Republic of China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080People’s Republic of China Department of Materials science and Metallurgical Engineering Kyungpook National University80 Daehak-RoBuk-GuDaegu 41566Republic of Korea school of Materials science and Engineering Yeungnam UniversityDaehak-RoGyeongsan-Si 38541Gyeongsangbuk-doRepublic of Korea

This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage *** discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material *** addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and ***,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and *** the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.

关键词： Light Light-material interaction Nanomaterials Energy conversion and storage devices

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Characterization of response behaviors of chironomid larvae in different concentrations of toxic chemicals

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Characterization of response behaviors of chironomid larvae ...

simplified Technique for Predicting Offshore Pipeline Expansion

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作者： Choi K.H. Lec s.H. park Y.s. Chon T.-s. Division of Biological sciences.Pusan National University.Busan(Pusan)609-735.Republic of Korea Depatrtment of Physics Pusan National University Busan(Pusan)609-735. Republic of Korea Department of Biology Kyung Hee University.Hoegi-dong Dongdaemum-gu.seou 130-701 Republic of Korea.

Although behavioral data are useful for detecting presence of toxic chemicals in environment,the data are usually complex and are difficult to *** the use of artificial neural networks has been reported to be useful for detecting toxic chemicals through pattern recognition of the movement *** this study,we demonstrated that computational methods based on the self-Organizing Map could be used for characterizing response behaviors of indicator specimens at different levels of toxic *** 2-D movement tracks of chironmid(Chironomus riparius)larvae were continuously recorded before and after the treatments of Diazinon at the concentrations of 0.001 mg/L and 0.01 mg/*** parametcrs such as speed,acceleration, stop number,***,locomotory rate and meander were selected and were used as input data for training with the self-Organizing Map (sOM).The movement tracks were accordingly grouped according to different levels of the *** results suggested that patterning by sOM could be useful for detecting different levels of toxic chemicals in semi-natural conditions.

关键词： Characterization of response behaviors of chironomid larvae in different concentrations of toxic chemicals

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Journal of Marine science and Application 2018年第1期17卷 68-78页

作者： J.H.seo D.K.Kim H.s.Choi s.Y.Yu K.s.park Graduate school of Engineering Mastership Pohang University of Science and TechnologyPohang 37673Republic of Korea Ocean and ship Technology Research Group Universiti Teknologi PETRONAS32610 Seri IskandarPerakMalaysia Department of Civil and Environmental Engineering Universiti Teknologi PETRONAS32610 Seri IskandarPerakMalaysia Vietnam Construction steel solution Marketing Center POSCO Vietnam HoldingsHo Chi Minh City 700000Vietnam

In this study,we propose a method for estimating the amount of expansion that occurs in subsea pipelines,which could be applied in the design of robust structures that transport oil and gas from offshore *** begin with a literature review and general discussion of existing estimation methods and terminologies with respect to subsea *** to the effects of high pressure and high temperature,the production of fluid from offshore wells is typically caused by physical deformation of subsea structures,e.g.,expansion and contraction during the transportation *** severe cases,vertical and lateral buckling occurs,which causes a significant negative impact on structural safety,and which is related to on-bottom stability,free-span,structural collapse,and many other *** addition,these factors may affect the production rate with respect to flow assurance,wax,and hydration,to name a *** this study,we developed a simple and efficient method for generating a reliable pipe expansion design in the early stage,which can lead to savings in both cost and computation *** such,in this paper,we propose an applicable diagram,which we call the standard dimensionless ratio(sDR)versus virtual anchor length(LA)diagram,that utilizes an efficient procedure for estimating subsea pipeline expansion based on applied reliable *** this user guideline,offshore pipeline structural designers can reliably determine the amount of subsea pipeline expansion and the obtained results will also be useful for the installation,design,and maintenance of the subsea pipeline.

关键词： Pipe expansion HP/HT Thermal expansion subsea pipeline

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Multiscale computational understanding and growth of 2D materials:a review

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npj Computational Materials 2020年第1期6卷 1484-1501页

作者： Kasra Momeni Yanzhou Ji Yuanxi Wang shiddartha Paul sara Neshani Dundar E.Yilmaz Yun Kyung shin Difan Zhang Jin-Wu Jiang Harold s.park susan sinnott Adri van Duin Vincent Crespi Long-Qing Chen Mechanical Engineering Department Louisiana Tech UniversityRustonLA 71272USA Department of Mechanical Engineering University of AlabamaTuscaloosaALUSA Institute for Micromanufacturing Louisiana Tech UniversityRustonLAUSA Materials Research Institute The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Materials science and Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA 2-Dimensional Crystal Consortium The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Physics The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Electrical Engineering Iowa State UniversityAmesIA 50010USA Mechanical Engineering Department The Pennsylvania State UniversityUniversity ParkPA 16802USA shanghai Institute of Applied Mathematics and Mechanics Shanghai Key Laboratory of Mechanics in Energy EngineeringShanghai UniversityShanghai 200072China Department of Mechanical Engineering Boston UniversityBostonMA 02215USA Department of Engineering science and Mechanics The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Mathematics The Pennsylvania State UniversityUniversity ParkPA 16802USA

The successful discovery and isolation of graphene in 2004,and the subsequent synthesis of layered semiconductors and heterostructures beyond graphene have led to the exploding field of two-dimensional(2D)materials that explore their growth,new atomic-scale physics,and potential device *** review aims to provide an overview of theoretical,computational,and machine learning methods and tools at multiple length and time scales,and discuss how they can be utilized to assist/guide the design and synthesis of 2D materials beyond graphene.

关键词： synthesis utilized subsequent

计算机辅助诊断在肺癌CT筛查中Lung-RADs分类的应用：对阅片者间一致性的影响

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国际医学放射学杂志 2022年第2期 245-246页

作者： s.park H.park s.M.Lee Y.Ahn W.Kim K.Jung 刘昶

摘要目的评估计算机辅助诊断（CAD）在肺部影像报告与数据系统（Lung-RADs）分类中对阅片者之间一致性的影响。方法从国家肺癌筛查试验中随机抽取了200例涵盖

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Ultrasound-guided sphenopalatine ganglion block for effective analgesia during awake fiberoptic nasotracheal intubation: A case report

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World Journal of Clinical Cases 2024年第14期12卷 2451-2456页

作者： Hangil Kang seongjae park Yehun Jin Department of Anesthesiology and Pain Medicine National Cancer CenterGoyang-si 10408Gyeonggi-doSouth Korea

BACKGROUND Awake fiberoptic nasotracheal intubation(AFNI)is the preferred airway ma-nagement strategy for patients with difficult ***,this procedure can cause significant physical and psychological *** case report explores the application of a sphenopalatine ganglion(sPG)block as an alternative anal-gesic modality to mitigate the discomfort associated with *** sUMMARY A 63-year-old female with a history of right maxillary osteosarcoma underwent craniotomy for a suspected malignant brain *** patient’s medical history included prior surgery,chemotherapy,and radiation therapy,resulting in signi-ficant jaw impairment and limited neck *** the anticipated air-way challenges,AFNI was planned.A sPG block was performed under real-time ultrasound guidance,providing effective analgesia during nasotracheal *** The sPG block represents a promising analgesic approach in AFNI,offering po-tential benefits in alleviating pain involving the nasal and nasopharyngeal regions as well as improving patient cooperation.

关键词： sphenopalatine ganglion block Nerve block Regional anesthesia Analgesia Awake fiberoptic nasotracheal intubation Case report

Translation and psychometric validation of the Korean version of the academic nurse self-efficacy scale for Korean bachelor-level nursing students

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Frontiers of Nursing 2024年第2期11卷 209-219页

作者： Eunkyung Lee Jin-Hwa park College of Nursing Institute of Nursing ScienceDaegu Catholic UniversityNam-guDaegu 42472Republic of Korea

Objective:This study aimed to translate the Academic Nurse self-Efficacy scale(ANsE),assess its appropriateness for use in Korean nursing students,and evaluate the Korean Version of the Academic Nurse self-Efficacy scale’s(K-ANsE)validity and ***:The data of 444 nursing college students at 10 universities across the country were collected from November 1,2020 to June 8,*** K-ANsE was analyzed utilizing sPss 25.0 and AMOs 25.0 *** K-ANsE’s content validity,construct validity,convergent/discriminant validity,criterion-related validity,and reliability were ***:Internal emotion management,auto-regulatory behavior,external emotion management,and sociality were *** Cronbach’sαfor the overall scale was 0.87,and that of the 4 subscales ranged from 0.70 to ***:The Korean version of the ANsE seems to be a valid and reliable instrument to measure Korean bachelor-level nursing students.

关键词： academic self-efficacy Baccalaureate confirmatory factor analysis nursing students psychometrics translation and adaptation

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