检索结果-南通市图书馆

Inhibiting scar formation via wearable multilayer stacked electret patch:Self-creation of persistent and customizable DC electric field for fibrogenic activity restriction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2024年第3期6卷 66-80页

作者： Sung-Won Kim Sumin Cho Donghan Lee Jiyu Hyun Sunmin Jang Inwoo Seo Hyun Su Park hee jae hwang Hyung-Seop Han Dae Hyeok Yang Heung jae Chun Suk Ho Bhang Dongwhi Choi School of Chemical Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Department of Mechanical Engineering(Integrated Engineering Program) Kyung Hee UniversityYonginGyeonggiRepublic of Korea Biomaterials Research Center Biomedical Research DivisionKorea Institute of Science and Technology(KIST)SeoulRepublic of Korea Department of Medical Life Sciences College of MedicineInstitute of Cell and Tissue EngineeringThe Catholic University of KoreaSeoulRepublic of Korea

Electrical stimulation has recently received attention as noninvasive treatment in skin wound healing with its outstanding biological property for clinical ***,the complexity of equipment for applying appropriate electrical stimulation remains an ongoing ***,we proposed a strategy for skin scar inhibition by providing electrical stimulation via a multilayer stacked electret(MS-electret),which can generate direct current(DC)electric field(EF)without any power supply *** addition,the MS-electret can easily control the intensity of EFs by simply stacking electret layers and maintain stable EF with the surface potential of 3400 V over 5 days owing to the injected charges on the electret *** confirmed inhibition of type 1 collagen andα-SMA expression of human dermal fibroblasts(hDFs)by 90%and 44%in vitro,indicating that the transition of hDFs to myofibroblasts was restricted by applying stable electrical *** further revealed a 20%significant decrease in the ratio of myofibroblasts caused by the MS-electret in *** findings present that the MS-electret is an outstanding candidate for effective skin scar inhibition with a battery-free,physiological electrical microenvironment,and noninvasive treatment that allows it to prevent external infection.

关键词： DC electric field dermal fibroblasts electret scar formation restriction self-creation of electrical stimulation

Aligned Ion Conduction Pathway of Polyrotaxane‑Based Electrolyte with Dispersed Hydrophobic Chains for Solid‑State Lithium–Oxygen Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 169-186页

作者： Bitgaram Kim Myeong‑Chang Sung Gwang‑hee Lee Byoungjoon hwang Sojung Seo Ji‑Hun Seo Dong‑Wan Kim Department of Materials Science and Engineering Korea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced Engineering(IAE)Yongin 17180Republic of Korea

A critical challenge hindering the practical application of lithium–oxygen batteries(LOBs)is the inevitable problems associated with liquid electrolytes,such as evaporation and safety *** study addresses these problems by proposing a modified polyrotaxane(mPR)-based solid polymer electrolyte(SPE)design that simultaneously mitigates solvent-related problems and improves ***-SPE exhibits high ion conductivity(2.8×10^(−3)S cm^(−1)at 25℃)through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain *** this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 *** situ Raman spectroscopy reveals the presence of an LiO_(2)intermediate alongside Li_(2)O_(2)during oxygen *** situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture,as demonstrated by the air permeability *** present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs.

关键词： Solid polymer electrolyte Lithium-oxygen batteries Polyrotaxane ion conductivity Hydrophobic chain

Bluish-green emission of novel BaAl_(2)Ge_(2)O_(8):Eu^(2+) phosphors under near-ultraviolet excitation

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2025年第1期43卷 30-38,I0002页

作者： Sk.Khaja Hussain jae Su Yu Department of Electronic Engineering Institute for Wearable Convergence ElectronicsKyung Hee University1 Seocheon-dongGiheung-guYongin-sGyeonggi-do446-701Republic of Korea Nanosensor Research Institute Hanyang University55 Hanyangdaehak-roSangnok-guAnsanGyeonggi-do15588Republic of Korea

A new class of phosphor samples,denoted as Ba_(1-x)Al_(2)Ge_(2)O_(8):xEu^(2+)(BAGO:xEu^(2+))was synthesized using a Pechini-type sol-gel technique and subsequent thermal reduction in CO *** morphology and structural characteristics of both the BAGO host lattice and the Eu^(2+)ions activated BAGO phosphors were investigated through field-emission scanning electron microscopy and X-ray diffractometry analyses,*** BAGO host lattice has micro-sized particles and the Rietveld refinement reveals the presence of a monoclinic crystal phase,characterized by the space group I2/c(No.15).Introducing Eu^(2+)ions into Ba^(2+)sites under CO condition reduces the particle size,switching from microscale to *** the near-ultraviolet spectrum(353 nm),the BAGO:xEu^(2+)phosphors exhibit a broadband bluish-green photoluminescence(PL)emission characterized by a peak band at 492 *** phenomenon is attributed to the 4f^(6)5d^(1)→4f^(7) electronic *** BAGO:0.02Eu^(2+)phosphor shows the strongest bluish-green PL emission,and a co mprehensive description of the concentration quenching mechanism between Eu^(2+)ions is ***,the thermal stability of the optimized BAGO:0.02Eu^(2+)phosphor was investigated,and its activation energy was ***,the synthesized bluish-green BAGO:0.02Eu^(2+)phosphor holds the promise of being a novel and potential candidate for utilization in white light-emitting diode applications.

关键词： Broadband bluish-green Ba1Al_(2)Ge_(2)O_(8):Eu^(2+) Near-ultraviolet excitation cothermal reduction White light-emitting diodes Rare earths

Adenosine triphosphate-binding pocket inhibitor for mixed lineage kinase domain-like protein attenuated alcoholic liver disease via necroptosis-independent pathway

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2025年第6期31卷 44-61页

作者： Han-Ning Xuan Yuan Hyun Sung Kim Gye Ryeol Park jae Eun Ryu Ji Eun Kim In Young Kang Hye Young Kim Seung Min Lee Ju hee Oh Eileen L Yoon Dae Won Jun Department of Internal Medicine Hanyang University School of MedicineSeoul 04763South Korea Department of Pathology Hanyang University School of MedicineSeoul 04763South Korea Department of Translational Medicine Graduate School of Biomedical Science and EngineeringHanyang UniversitySeoul 04763South Korea Department of Obstetrics and Gynecology Institute of Women’s Medical Life ScienceYonsei Cancer CenterSeverance HospitalYonsei University College of MedicineSeoul 04763South Korea Department of Internal Medicine Sanggye Paik HospitalInje University College of MedicineSeoul 01757South Korea

BACKGROUND Mixed lineage kinase domain-like protein(MLKL)serves as a critical mediator in necroptosis,a form of regulated cell death linked to various liver *** study aims to specifically investigate the role of MLKL’s adenosine triphosphate(ATP)-binding pocket in facilitating necroptosis-independent pathways that may contribute to liver disease *** focusing on this mechanism,we seek to identify potential therapeutic targets that can modulate MLKL activity,offering new strategies for the prevention and treatment of liver-related *** To investigate the possibility of using the ATP-binding pocket-associated,necro-ptosis-independent MLKL pathway as a target for liver *** Cell death following necroptosis stimuli was evaluated using cell proliferation assays,flow cytometry,and electron microscopy in various *** human liver organoid system was used to evaluate whether the MLKL ATP pocket-binding inhibitor could attenuate ***,alcoholic and non-alcoholic fatty liver diseases animal models were used to determine whether MLKL ATP pocket inhibitors could attenuate liver *** While an MLKL ATP pocket-binding inhibitor did not prevent necroptosis-induced cell death in RAW 264.7 cells,it did reduce the necroptosis-led expression of CXCL2,ICAM,and ***,MLKL ATP pocket inhibitor diminishes the expression of CXCL2,ICAM,and VCAM by inhibiting the IκB kinase and nuclear factor kappa-B pathways without inducing necroptosis-induced cell death in two-dimensional cell culture as well as the human-derived liver organoid *** MLKL ATP-binding inhibitor was ineffective in non-alcoholic fatty liver disease animal models,MLKL ATP-binding inhibitor attenuated hepatic inflammation in the alcoholic liver disease *** MLKL ATP pocket-binding inhibitor exerted anti-inflammatory effects through the necroptosis-independent MLKL pathway in an animal model of alcoholic liver disease.

关键词： RAW 264.7 cell Cell death Necroptosis Mixed lineage kinase domain-like protein Non-alcoholic fatty liver disease Mixed lineage kinase domain-like protein adenosine triphosphate binding inhibitor Alcoholic liver disease

Review on Tidal Energy Technologies and Research Subjects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Ocean Engineering 2020年第1期34卷 137-150页

作者： Chul hee JO Su Jin hwang Department of Naval Architecture and Ocean Engineering Inha University

Tidal current power is one of the promising and reliable renewable energies with the advantage of continuous and predictable resource. It can make stable electricity regardless of weather conditions or seasons all year around. The required technologies for tidal current power in the ocean have been developed for years and now recognized that it could be commercialized after intensive field tests and successful demonstrations. There are several tidal farm development projects in the world, such as the MeyGen project in UK with its commercialization at hand. However, various research subjects in the tidal current energy field are seeking improvements and industrialization of tidal current power in terms of economy and technical reliability. This paper introduces the resource assessment procedure of tidal energy that has been applied in Korea coastal regions. The key research subjects for tidal current power together with the interaction effect of multi-arrangement is described. Also, this paper is to introduce the research output of each subject such as turbine design, experimental validation, turbine interaction and wake, multi-array module, FSI (fluid-structure interaction), and duct application.

关键词： tidal current power resource assessment turbine design experimental validation turbine interaction multi arrangement FSI(fluid-structure interaction)

Development of a Seaweed Species-Selection Index for Successful Culture in a Seaweed-Based Integrated Aquaculture System

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2013年第1期12卷 125-133页

作者： Yun hee Kang jae Ran hwang Ik Kyo Chung Sang Rul Park Marine and Environmental Research Institute Jeju National University Marine Environmental Research Division National Fisheries Research and Development Institute Division of Earth Environmental System Pusan National University School of Marine Biomedical Sciences Jeju National University

Integrated multi-trophic aquaculture (IMTA) has been proposed as a concept that combines the cultivation of fed aquaculture species (e.g., finfish/shrimp) with extractive aquaculture species (e.g., shellfish/seaweed). In seaweed-based integrated aquaculture, seaweeds have the capacity to reduce the environmental impact of nitrogen-rich effluents on coastal ecosystems. Thus, selection of optimal species for such aquaculture is of great importance. The present study aimed to develop a seaweed species-selection index for selecting suitable species in seaweed-based integrated aquaculture system. The index was synthesized using available literature-based information, reference data, and physiological seaweed experiments to identify and prioritize the desired species. Undaria pinnatifida, Porphyra yezoensis and Ulva compressa scored the highest according to a seaweed-based integrated aquaculture suitability index (SASI). Seaweed species with the highest scores were adjudged to fit the integrated aquaculture systems. Despite the application of this model limited by local aquaculture environment, it is considered to be a useful tool for selecting seaweed species in IMTA.

关键词： seaweed IMTA species-selection model water temperature physiological characteristics uptake rate

Development of acquired non-accommodative esotropia in a patient without a trochlear nerve

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2022年第6期15卷 1030-1031页

作者： hee Kyung Yang jae Hyoung Kim Jeong-Min hwang Department of Ophthalmology Seoul National University College of MedicineSeoul National University Bundang HospitalSeongnam 13620Republic of Korea Department of Radiology Seoul National University College of MedicineSeoul National University Bundang HospitalSeongnam 13620Republic of Korea

Dear Editor,Congenital cranial dysinnervation disorders(CCDD) are neurodevelopmental diseases of the brainstem and cranial nerves;. Congenital superior oblique palsy(SOP) is one of the most representative CCDDs becaus... 详细信息

关键词： nerves diseases oblique

Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2024年第9期6卷 306-324页

作者： Hong-Jin Son Jeemin hwang Min Young Choi Seung hee Park jae Hyuk Jang Byungchan Han Sung Hoon Ahn Department of Bio-Chemical Engineering Chosun UniversityGwangjuRepublic of Korea Fuel Cell Research and Demonstration Center Hydrogen Energy Research DivisionKorea Institute of Energy Research(KIER)Buan-gunJeollabuk-doRepublic of Korea Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoulRepublic of Korea Center for Research Equipment Korea Basic Science InstituteDaejeonRepublic of Korea

This study explores a symmetric configuration approach in anion exchange membrane(AEM)water electrolysis,focusing on overcoming adaptability challenges in dynamic ***,a rapid and mild synthesis technique for fabricating fibrous membrane-type catalyst electrodes is *** method leverages the contrasting oxidation states between the sulfur-doped NiFe(OH)_(2) shell and the metallic Ni core,as revealed by electron energy loss *** evaluations confirm that the S–NiFe(OH)_(2) active sites optimize free energy for alkaline water electrolysis *** technique bypasses traditional energy-intensive processes,achieving superior bifunctional activity beyond current *** symmetric AEM water electrolyzer demonstrates a current density of 2 A cm^(-2) at 1.78 V at 60℃ in 1 M KOH electrolyte and also sustains ampere-scale water electrolysis below 2.0 V for 140 h even in ambient *** results highlight the system's operational flexibility and structural stability,marking a significant advance-ment in AEM water electrolysis technology.

关键词： AEM water electrolysis fibrous membrane iR correction free operational stability symmetric configuration

Segregation of voiced and unvoiced components from residual of speech signal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2012年第2期19卷 496-503页

作者： JO Cheol-woo KIM jae-hee School of Mechatronics Changwon National University

In conventional source-filter models, voiced and unvoiced components were considered independently. However, in practice it was difficult to separate the source into two parts. An actual source consists of a mixture of two sources and the ratio varies according to the content or the intention of speaker. It had been investigated to separate the voiced and unvoiced components for different source models. Source signals were modeled based on the residual signal measured from inverse filtering. Three different source models were assumed. The parameters of each model were optimized for the original speech signal using a genetic algorithm. The resulting parameters were compared in terms of the mel-cepstral distance to the original signal, the spectrogram and the spectral envelope from the synthesized signal. The optimization method achieves an improvement of 15% for the Klatt model, but there is little improvement in the modified residual case.

关键词： voice source model synthesis optimization genetic algorithm