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Importance of proper ventilator support and pulmonary rehabilitation in obese patients with heart failure:Two case reports

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World Journal of Clinical Cases 2023年第13期11卷 3029-3037页

作者： Eun-hee Lim Sung-hee park Yu Hui Won Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND The optimal treatment for heart failure(HF)is a combination of appropriate *** the disease using only medical therapy is difficult in patients with HF,severe hypercapnia,and *** patients should first receive ventilator support followed by pulmonary rehabilitation(PR).CASE SUMMARY We report two cases in which arterial blood gas(ABG)improved and PR was possible with appropriate ventilator *** patients with extreme obesity complaining of worsening dyspnea–a 47-year-old woman and a 36-year-old man both diagnosed with HF–were hospitalized because of severe hypercapnia and *** proper medical treatment,hypercapnia and desaturation resolved in neither case,and both patients were transferred to the rehabilitation department for *** the time of the first consultation,the patients were bedridden because of *** demand was successfully reduced once noninvasive ventilation was *** the patients’dyspnea gradually improved to the point where they could be weaned off the ventilator during the daytime,they started engaging in functional training and aerobic *** 4 mo of followup,both patients were able to perform activities of daily living and maintain their lower body weight and normalized ABG *** Symptoms of patients with obesity and HF may improve once ABG levels are normalized through ventilator support and implementation of PR.

关键词： Noninvasive ventilation Heart failure Obesity Rehabilitation Dyspnea Case report

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From capture to transport:A review of engineered surfaces for fog collection

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液滴(英文) 2023年第2期2卷 46-68页

作者： Youhua Jiang Christian Machado Kyoo-chul K.park Department of Mechanical Engineering Guangdong Technion—Israel Institute of TechnologyShantouChina Department of Mechanical Engineering Northwestern UniversityEvanstonIllinoisUSA

Collecting microscale water droplets suspended in the wind,that is,fog,using permeable surfaces is a promising solution to the worldwide problem of water scarcity and is of great interest to industries,such as mist elimination and recapturing water in cooling *** the past few decades,this topic has attracted a drastically increasing number of researchers across a wide range of ***,many aspects remain unclear,such as the definition and process of fog collection,fog collection determined from the perspectives of both the fog capture process and the liquid transport process,and how surface characteristics affect fog collection *** this review,we introduce and discuss fog collection from the perspectives of aerodynamics-governed fog-capturing processes and interfacial-phenomena-determined liquid transport ***,an emphasis is given to the design and engineering of permeable surfaces at different length scales to optimize the fog collection performance,including the dimension,morphology,and arrangement of wires at the millimetric scale,unidirectional spreading,and Laplace pressure gradient induced by asymmetric surface geometry and nano-/*** last,a brief outlook of future research directions is provided.

关键词： fog transport unidirectional

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Recent progress and perspective in additive manufacturing of EMI shielding functional polymer nanocomposites

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Nano Research 2023年第1期16卷 1-17页

作者： Amirjalal Jalali Ruiyan Zhang Reza Rahmati Mohammadreza Nofar Mohini Sain chul B.park Center for Biocomposites&Biomaterials Processing John H.Daniels Faculty of ArchitectureLandscapeand DesignUniversity of TorontoTorontoOntario M5S 3B3Canada Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial EngineeringUniversity of Toronto5 King's College RoadTorontoOntario M5S 3G8Canada State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering Key Laboratory of Photovoltaic MaterialsSchool of Materials and New EnergyNingxia UniversityYinchuan 750021China Metallurgical&Materials Engineering Department Faculty of Chemical and Metallurgical EngineeringIstanbul Technical UniversityMaslakIstanbul 34469Turkey

Because of rapid progress in the electronics industry,the market has faced a huge demand for novel materials in the field of electromagnetic interference(EMI)*** functional polymer composites have demonstrated great potential to fulfill this *** synthesize the polymeric composites,functional conductive nanoadditives such as graphene,carbon nanotubes,and MXene are commonly added to polymeric matrices,and the conductive polymer nanocomposites exhibit promising electrical conductivity as well as EMI shielding *** manufacturing(AM),also referred to as threedimensional(3D)printing,has been increasingly employed to fabricate complicated geometry components in the medical,aerospace,and automotive *** has also been used to fabricate advanced EMI shielding materials for sensors,supercapacitors,energy storage devices,and flexible *** review aims at introducing the different 3D printing methods applied for the fabrication of EMI shielding polymer *** impact of the AM process on the functionality of the samples is also ***,the influence of the nanofiller type and amount on the microstructure and performance of the fabricated nanocomposites is ***,the prospects and recommended works for future study are outlined.

关键词： additive manufacturing electromagnetic interference(EMI)shielding functional polymer nanocomposites stretchable electronics

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A unique and well-designed 2D graphitic carbon nitride with sponge-like architecture for enhanced visible-light photocatalytic activity

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Journal of Materials Science & Technology 2023年第28期159卷 99-111页

作者： Mahdieh Razi Asrami Milad Jourshabani Min hee park Daiha Shin Byeong-Kyu Lee Department of Civil and Environment Engineering University of UlsanDaehakro 93NamguUlsan 680-749Republic of Korea Western Seoul Center Korea Basic Science InstituteSeoul 03759Republic of Korea

A unique and well-designed 2D graphitic carbon nitride(g-CN)with sponge-like architecture has been successfully synthesized by engineering supramolecular self-assembly and well-organized SiO 2 *** resulting material showed great optical and textural characteristics with plenty of open and uni-form pores,which are very helpful whether for multiple light scattering or mass *** formation of boosted delocalizedπ-conjugated electrons at the molecular level and condensed heptazine building blocks result in enhanced carrier density and charge transfer *** emission spectroscopy and time-resolved fluorescence lifetime(TRPL)strongly confirmed the enhancement of light harvesting and prolonged charge carrier *** optimized sample exhibited a degradation performance of 95%of bisphenol A(BPA,10 mg L-1)after 60 min under visible-light irradiation at pH=*** the scavenging experiments,probing experiments as well as electron paramagnetic resonance(EPR)confirm that•O 2-is the dominant reactive species that fragments bisphenol ***,density functional theory(DFT)calculations unveil that the BPA interaction with a modified g-CN containing porous structure is energeti-cally more favorable than non-porous pure ***,the toxicity assessment showed that the final degradation products were placed in the non-harmful category based on acute and chronic *** study presents a promising strategy to modify the g-CN properties and provides an efficient technique for boosting its visible-light photocatalytic activity.

关键词： Sponge-like Carbon nitride Photocatalysis Visible-light

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Case mistaken for leukemia after mRNA COVID-19 vaccine administration:A case report

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World Journal of Clinical Cases 2022年第33期10卷 12268-12277页

作者： Seul Bi Lee Chi Young park Sang-Gon park hee Jeong Lee Department of Internal Medicine Hemato-oncologyChosun University HospitalGwangju 501-717South Korea

BACKGROUND Following the global outbreak of coronavirus disease 2019(COVID-19),unlike other vaccines,COVID-19 vaccines were developed and commercialized in a relatively short period of *** large-scale administration of this vaccine in a short time-period led to various unexpected side effects,including severe cytopenia and thrombosis with thrombocytopenia *** many reports on adverse reactions,vaccination was necessary to prevent the spread of COVID-19;thus,it is essential to understand and discuss various cases of adverse reactions after *** SUMMARY A 77-year-old woman was administered the second dose of Pfizer mRNA COVID-19 *** vaccination she experienced fever,myalgia,and *** were subsequently administered for several days,but there was no improvement in the *** patient showed severe thrombocytopenia and *** and abdominopelvic computed tomography showed no infection related findings,but splenomegaly and cirrhotic liver features were observed.A large number of immature cells were observed in the peripheral blood smear;thus,bone marrow examination was performed for acute ***,there were no *** patient recovered after administration of hepatotoxins and transfusion treatment for cytopenia and was diagnosed with an adverse reaction to COVID-19 *** Adverse reactions of vaccination could be mistaken for hematologic malignancies including *** report a patient with leukocytosis following COVID-19 vaccination.

关键词： COVID-19 Vaccine mRNA Leukocytosis Adverse reaction Case report

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Fatigue crack in large-scale tubular joints for offshore structures

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Science China(Technological Sciences) 2011年第3期54卷 705-714页

作者： chul-hee JO Sung-Woo IM Won-chul CHO Kwan-Kyu park Department of Naval Architecture and Ocean Engineering Inha University Research Institute of Industrial Science and Technology Department of Civil & Environmental Engineering Chung-Ang University Samsung Heavy Industry Inc.

Tubular members have been used for constructing offshore structures. Large-scale fatigue tests of welded tubular K-joints under the balanced in-plane bending brace were carried out to investigate the fatigue behavior of API 2W Gr.50 steel produced by POSCO. The experimental results were verified by numerical approaches and compared with the IIW, DnV RP-C203 and API RP 2A-WSD design curves. The test results based on the hot spot stress were in agreement with the design curves. The SCF factor for tubular K-joint was also obtained. The numerical parametric study of the K-joint (using the finite element program) was described and its results were compared with experimental results. The stress effects of various parameters including α, β, γ, τ and θ on the stress in the K-joint were investigated. The stress distribution for each parameter was introduced. The study showed that the maximum stress of the joint varied according to the variation of joint parameters.

关键词：海洋结构物疲劳裂纹管接头热点应力设计曲线弯曲试验机挪威船级社有限元程序

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A Review on Interface Engineering of MXenes for Perovskite Solar Cells

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Nano-Micro Letters 2023年第8期15卷 270-308页

作者： Srikanta Palei G.Murali Choong‑hee Kim Insik In Seul‑Yi Lee Soo‑Jin park Department of Chemistry Inha University100 InharoIncheon 22212South Korea Department of Polymer Science and Engineering Department of IT‑Energy Convergence(BK21 Four)Chemical Industry InstituteKorea National University of TransportationChungju 27469South Korea

With an excellent power conversion efficiency of 25.7%,closer to the Shockley–Queisser limit,perovskite solar cells(PSCs)have become a strong candidate for a next-generation energy ***,the lack of stability and reliability in PSCs remained challenging for ***,such as interfacial and structural engineering,have a more critical influence on enhanced ***,two-dimensional materials,have emerged as promising materials in solar cell applications due to their metallic electrical conductivity,high carrier mobility,excellent optical transparency,wide tunable work function,and superior mechanical *** to different choices of transition elements and surface-terminating functional groups,MXenes possess the feature of tuning the work function,which is an essential metric for band energy alignment between the absorber layer and the charge transport layers for charge carrier extraction and collection in ***,adopting MXenes to their respective components helps reduce the interfacial recombination resistance and provides smooth charge transfer paths,leading to enhanced conductivity and operational stability of *** review paper aims to provide an overview of the applications of MXenes as components,classified according to their roles as additives(into the perovskite absorber layer,charge transport layers,and electrodes)and themselves alone or as interfacial layers,and their significant importance in PSCs in terms of device performance and ***,we discuss the present research status and future directions toward its use in PSCs.

关键词： MXenes Perovskite solar cells Additives Interfacial layer Electrodes

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Microstructure analyses and phase-field simulation of partially divorced eutectic solidification in hypoeutectic Mg-Al Alloys

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Journal of Magnesium and Alloys 2022年第6期10卷 1672-1679页

作者： Joo-hee Kang Jiwon park Kyung Song Chang-Seok Oh Oleg Shchyglo Ingo Steinbach Korea Institute of Materials Science Changwon 51508Republic of Korea Interdisciplinary Centre for Advanced Materials Simulation Ruhr-University Bochum44801 BochumGermany

In this study the partially divorced eutectic microstructure ofα-Mg andβ-Mg17Al12was investigated by electron backscatter diffraction,transmission electron microscopy,and phase-field modeling in hypoeutectic Mg-Al *** orientation relationships between the individual eutecticαgrains,eutecticβphase,and primaryαgrains were *** the amount of eutectic morphology is primarily determined by the Al content,the in-depth microstructure analyses and the phase-field simulation suggest non-interactive nucleation and growth of eutecticαphase in theβphase grown on the interdendritic primaryα***,phase-field simulations showed a preferred nucleation sequence where theβphase nucleates first and subsequently triggers the nucleation of eutecticαphase at the movingβphase solidification front,which supports the microstructural analysis results.

关键词： Mg-Al alloy Partially divorced eutectic Solidification Electron backscatter diffraction Phase-Field modeling

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Rationally designed bioactive milk-derived protein scaffolds enhanced new bone formation

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Bioactive Materials 2023年第2期20卷 368-380页

作者： Min Suk Lee Jin Jeon Sihyeon park Juhan Lim hee Seok Yang Department of Nanobiomedical Science&BK21 FOUR NBM Global Research Center for Regenerative Medicine Dankook UniversityCheonan31116Republic of Korea Medical Laser Research Center College of MedicineDankook UniversityCheonan31116Republic of Korea Center for Bio-Medical Engineering Core-Facility Dankook UniversityCheonan31116Republic of Korea

Recently,a number of studies reported that casein was composed of various multifunctional bioactive peptides such as casein phosphopeptide andβ-casochemotide-1 that bind calcium ions and induce macrophage chemotaxis,which is crucial for bone homeostasis and bone fracture repair by cytokines secreted in the *** hypothesized that the effects of the multifunctional biopeptides in casein would contribute to improving bone ***,we designed a tissue engineering platform that consisted of casein and polyvinyl alcohol,which was a physical-crosslinked scaffold(milk-derived protein;MDP),via simple freeze-thaw cycles and performed surface modification using 3,4-dihydroxy-L-phenylalanine(DOPA),a mussel adhesive protein,for immobilizing adhesive proteins and cytokines for recruiting cells in vivo(MDP-DOPA).Both the MDP and MDP-DOPA groups proved indirectly contribution of macrophages migration as RAW 264.7 cells were highly migrated toward materials by contained bioactive *** implanted MDP and MDP-DOPA in a mouse calvarial defect orthotopic model and evaluated whether MDP-DOPA showed much faster mineral deposition and higher bone density than that of the no-treatment and MDP *** MDP-DOPA group showed the accumulation of host M2 macrophages and mesenchymal stem cells(MSCs)around the scaffold,whereas MDP presented mostly M1 macrophages in the early stage.

关键词： Casein Bioactive peptides Bone regeneration Protein based scaffold Physical crosslinking

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Pulmonary amyloidosis and multiple myeloma mimicking lymphoma in a patient with Sjogren’s syndrome:A case report

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World Journal of Clinical Cases 2022年第3期10卷 1016-1023页

作者： Joa Kim Yun Sung Kim hee Jeong Lee Sang Gon park Department of Internal Medicine RheumatologyChosun University HospitalGwangju 501-717South Korea Department of Internal Medicine Chosun University HospitalGwangju 501-717South Korea Department of Internal Medicine Hemato-OncologyChosun University HospitalGwangju 501-717South Korea

BACKGROUND Sjogren’s syndrome(SS),which affect salivary gland function,is an autoimmune *** may involve extraglandular *** 10 to 20 percent of SS patients have clinically significant lung disease,but presentation of pulmonary amylodosis is extremly *** incidence of benign monoclonal gammopathy in SS patients is high,but multiple myeloma is *** case involving the simultaneous occurrence of two rare diseases,pulmonary amyloidosis and multiple myeloma,in the same patient with SS has been reported so *** SUMMARY A 41-year-old male patient was referred to our hematology department due to incidentally detected gastric *** had been diagnosed with SS four years *** miliary nodules,ground glass opacity in both lung fields,and enlargement of both inguinal lymph nodes was observed on chest and abdomen computer *** on the pathological findings of lung and lymph node biopsied specimens,the patient was diagnosed with pulmonary amyloidosis and multiple *** amyloidosis and multiple myeloma associated with SS has rarely been *** This is an extremely rare case of simultaneous pulmonary amyloidosis and multiple myeloma in the same patient with SS.

关键词： Case report Sjogren’s syndrome Amyloidosis Multiple myeloma Plasmacytoma

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