检索结果-南通市图书馆

Structural insights on anti-biofilm mechanism of heated slightly acidic electrolyzed water technology against multi-resistant Staphylococcus aureus biofilm on food contact surface

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第3期13卷 1556-1566页

作者： Pianpian Yan Ramachandran Chelliah Kyoung Hee jo Xiuqin Chen Akanksha Tyagi Hyeon Yeong jo Fazle Elahi Nam Chan Woo Min Seung wook Deog Hwan Oh Department of Food Science and Biotechnology College of Agriculture and Life SciencesKangwon National UniversityChuncheon 24341South Korea Kangwon Institute ofInclusive Technology(KIIT) Kangwon National UniversityChuncheon 24341South Korea Saveetha School of Engineering (SIMATS)UniversitySriperumbudur 600124India Seoulin Bioscience Company Seongnam-si 13488South Korea

Slightly acidic electrolyzed water(SAEW)has proven to be an efficient and novel sanitizer in food and agriculture *** study assessed the efficacy of SAEW(30 mg/L)at 40℃on the inactivation of foodbome pathogens and detachment of multi-resistant Staphylococcus aureus(MRSA)*** underlying mechanism of MRS A biofilm under heated SAEW at 40℃treatment on metabolic profiles was *** results showed that the heated SAEW at 40℃significantly effectively against foodbome pathogens of 1.96-7.56(lg(CFU/g))reduction in pork,chicken,spinach,and *** heated SAEW at 40℃treatment significantly reduced MRS A biofilm cells by 2.41(lg(CFU/cm^(2))).The synergistic effect of SAEW treatment showed intense anti-biofilm activity in decreasing cell density and impairing biofilm cell *** metabolic response of MRSA biofilms,treated by SAEW at 40℃,revealed the alterations of intracellular metabolites,including amino acids,organic acid,fatty acid,and ***,signaling pathways involved in amino acid metabolism,energy metabolism,nucleotide synthesis,carbohydrate metabolites,and lipid biosynthesis were functionally disrupted by the SAEW at 40℃*** per our knowledge,this is the first research to uncover the potential mechanism of heated SAEW treatment against MRSA biofilm on food contact surface.

关键词： Multi-resistant Staphylococcus aureus Metabolic profile SAEW Biofilm Hurdle technology Electrode material

Polarization reversal via a transient relaxor state in nonergodic relaxors near freezing temperature

在线全文

学校读者我要写书评

暂无评论

journal of Materiomics 2019年第4期5卷 634-640页

作者： Chang-Hyo Hong Hanzheng Guo Xiaoli Tan john E.Daniels wook jo School of Materials Science and Engineering Ulsan National Institute of Science and TechnologyUlsan44919Republic of Korea Department of Materials Science and Engineering Iowa State UniversityAmesIA50011USA School of Materials Science and Engineering University of New South WalesNew South Wales2052Australia

Among the unresolved issues in the study of relaxor ferroelectrics is the role of freezing temperature,across which the dynamics of polarization reversal in relaxor ferroelectrics *** presence of this freezing temperature is best manifested by the appearance of a double polarization hysteresis loop just above the freezing *** that the polarization pinching evolving into a double hysteresis starts well below the freezing temperature,there exists a transient temperature regime between the nonergodic and the ergodic relaxor *** clarify the role of the freezing temperature on the pinching,the polarization reversal near the freezing temperature of relaxor(Pb_(1-x)La_(x))(Zr_(1-y)T_(y))_(1-x/4)O_(3)(PLZT)was monitored using three in situ electric field methods:electrocaloric effect,neutron diffraction,and transmission electron *** demonstrate that the pinching results from a two-step process,1)domain detexturization in the ferroelectric state and 2)miniaturization of *** observation explains the recently reported gap between the depolarization temperature T_(d) and the ferroelectric-torelaxor transition temperature T_(F-R) in lead-free *** further show that T_(d) and T_(F-R),which have long been considered identical in lead-based relaxors,are not the *** current study suggests that the mismatch between T_(d) and TF-R is an inherent feature in both lead-based and lead-free relaxor ferroelectrics.

关键词： Relaxor Nanodomains In situ Neutron diffraction Transmission electron microscopy

Growth of single crystals in the (Na_(1/2)Bi_(1/2))TiO_(3)-(Sr_(1-x)Ca_(x))TiO_(3) system by solid state crystal growth

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 Advanced Ceramics 2021年第5期10卷 973-990页

作者： Phan Gia LE Huyen Tran TRAN jong-Sook LEE john G.FISHER Hwang-Pill KIM wook jo Won-Jin MOONC School of Materials Science and Engineering Chonnam National University77 Yongbong-roBuk-guGwangju 61186Republic of Korea School of Materials Science and Engineering Ulsan National Institute of Science and Technology50 UNIST-gilEonyang-eupUlju-gunUlsan 44919Republic of Korea Korea Basic Science Institute Gwangju Center77 Yongbong-roBuk-guGwangju 61186Republic of Korea

Ceramics based on(Na_(1/2)B_(1/2))TiO_(3) are promising candidates for actuator applications because of large strains generated by an electric field-induced phase *** example,the(1-x)(Na_(1/2)Bi_(1/2))TiO_(3)-xSrTiO_(3) system exhibits a morphotropic phase boundary at x=0.2-0.3,leading to high values of inverse piezoelectric constant d_(33),which can be further improved by the use of single *** our previous work,single crystals of (Na_(1/2)B_(1/2))TiO_(3)-SrTiO_(3) and (Na_(1/2)Bi_(1/2))TiO_(3)-TiO_(3) were grown by the solid state crystal growth *** in the(Nai/2Bi/2)TiO3-SrTiO3 system was sluggish whereas the (Na_(1/2)B_(1/2))TiO_(3)-CaTiO_(3) single crystals grew *** the present work,0.8(Na_(1/2)Bi_(1/2))Ti0_(3)-0.2(Sr_(1-x)Ca_(x))Ti0_(3) single crystals(with x=0.0,0.1,0.2,0.3,0.4)were produced by the solid state crystal growth technique in an attempt to improve crystal growth *** dependence of mean matrix grain size,single crystal growth distance,and electrical properties on the Ca concentration was investigated in *** investigations indicated that at x=0.3 the matrix grain growth was suppressed and the driving force for single crystal growth was *** Sr with Ca increased the shoulder temperature T_(s) and temperature of maximum relative permittivity T_(max),causing a decrease in inverse piezoelectric properties and a change from normal to incipient ferroelectric behavior.

关键词： (Na_(1/2)Bi_(1/2))TiO_(3) lead-free piezoelectric single crystal microstructure electrical properties

In situ total strain measurements revealing the strain mechanism of Pb(Mg_(1/3)Nb_(2/3))O_(3)ePbTiO_(3) single crystals

在线全文

学校读者我要写书评

暂无评论

journal of Materiomics 2021年第4期7卷 693-698页

作者： Hwang-Pill Kim Geon-Ju Lee Jae-Hyeon Cho Woo-Seok Kang Sang-Goo Lee Ho-Yong Lee wook jo School of Materials Science and Engineering&Jülich-UNIST joint Leading Institute for Advanced Energy Research Ulsan National Institute of Science and Technology(UNIST)Ulsan44919Republic of Korea IBULe Photonics Inc.7-39Songdo-dongYeonsu-guIncheon21999Republic of Korea Department of Materials Science and Engineering Sun Moon UniversityAsan31460Republic of Korea

The strain behavior of 0.71 Pb(Mg_(1/3)Nb_(2/3))O_(3)ePbTiO_(3)(PMN-PT)single crystal prepared by a solidstate single crystal growth method was investigated on two most widely used orientations,i.e.,(001)-and(011)-oriented.A special emphasis was put on the correlation among longitudinal and transverse strains and the consequent volume *** show that seemingly different strain behavior of(001)-and(011)-oriented crystals has the same origin,and the underlying mechanism excludes possible contribution from the frequently cited polarization *** situ monitoring of electric field induced Poisson’s ratio further suggested that the polarization vectors contributing to the strain properties in PMN-PT are not confined to a unique direction forced by the crystallographic symmetry but possess a span of angular range.

关键词： Piezoelectricity Single crystal PMN-PT Radial strain Poisson’s ratio

Gender differences in adult traumatic brain injury according to the Glasgow coma scale:A multicenter descriptive study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese journal of Traumatology 2021年第6期24卷 333-343页

作者： Ki Seong Eom Jang Hun Kim Sang Hoon Yoon Seong-jong Lee Kyung-Jae Park Sung-Kon Ha Jin-gyu Choi Kwang-wook jo jongYeon Kim Suk Hyung Kang jong-Hyun Kim Department of Neurosurgery Institute of Wonkwang Medical ScienceWonkwang University School of MedicineIksanSouth Korea Department of Neurosurgery Armed Forces Capital HospitalSeongnamSouth Korea Department of Neurosurgery Armed Force HospitalYangjuSouth Korea Department of Neurosurgery Korea University Anam HospitalSeoulSouth Korea Department of Neurosurgery Korea University Ansan HospitalAnsanSouth Korea Department of Neurosurgery Yeouido St.Mary's HospitalCatholic UniversitySeoulSouth Korea Department of Neurosurgery Catholic University St.Mary's HospitalBucheonSouth Korea Department of Neurosurgery Wonju Severance Christian HospitalWonjuSouth Korea Department of Neurosurgery Hallym University Sacred Heart HospitalChuncheonSouth Korea Department of Neurosurgery Korea University Guro HospitalSeoulSouth Korea

Purpose:Patients’gender,which can be one of the most important determinants of traumatic brain injury(TBI)outcomes,is also likely to interact with many other outcome variables of *** multicenter descriptive study investigated gender differences in epidemiological,clinical,treatment,mortality,and variable characteristics in adult TBI ***:The selection criteria were defined as patients who had been diagnosed with TBI and were admitted to the hospital between January 1,2016 and December 31,2018.A total of 4468 adult TBI patients were enrolled at eight University *** on the list of enrolled patients,the medical records of the patients were reviewed and they were registered online at each *** registered patients were classified into three groups according to the Glasgow coma scale(GCS)score:mild(13-15),moderate(9-12),and severe(3-8),and the differences between men and women in each group were *** risk factors of moderated and severe TBI compared to mild TBI were also ***:The study included 3075 men and 1393 women and the proportion of total males was 68.8%.Among all the TBI patients,there were significant differences between men and women in age,past history,and GCS *** the mild and severe TBI groups showed significant differences in age,past history,and clinical symptoms,the moderate TBI group showed significant differences in age,past history,cause of justice,and ***:To the best of our knowledge,this multicenter study is the first to focus on gender differences of adult patients with TBI in *** study shows significant differences between men and women in many aspects of adult ***,gender differences should be strongly considered in TBI studies.

关键词： Traumatic brain injuries Gender Epidemiology Glasgow coma scale

Effect of molybdenum on interfacial properties of titanium carbide reinforced Fe composite

在线全文

学校读者我要写书评

暂无评论

journal of Materials Science & Technology 2022年第12期107卷 252-258页

作者： Seungchan Cho Junghwan Kim Ilguk jo Jae Hyun Park Jaekwang Lee Hyun-Uk Hong Bong Ho Lee wook Ryol Hwang Dong-Woo Suh Sang-Kwan Lee Sang-Bok Lee Composites Research Division Korea Institute of Materials Science(KIMS)Changwon 51508South Korea Advanced Materials Engineering Dong-Eui UniversityBusan 47340South Korea Department of Aerospace and Software Engineering Gyeongsang National UniversityJinju 52828South Korea Department of Physics Pusan National UniversityBusan 46241South Korea Department of Materials Convergence and System Engineering Changwon National UniversityChangwon 51140South Korea Center for Core Research Facilities Daegu Gyeongbuk Institute of Science and TechnologyDaegu 42988South Korea School of Mechanical Engineering Gyeongsang National UniversityJinju 52828South Korea Graduate Institute of Ferrous Technology Pohang University of Science and TechnologyGyeongbuk 37673South Korea

This study shows that the mechanical strength of the composite of Fe matrix and titanium carbide(Ti C)ceramic particles is significantly enhanced with addition of molybdenum(Mo) atoms. Ti C reinforced Fe(Fe-0.2C-7Mn) composites with and without Mo were fabricated by a liquid pressing infiltration(LPI)process and the effect of Mo on interfacial properties of TiC–Fe composite was investigated using atomic probe tomography(APT) analysis, molecular dynamics(MD) simulations, first-principle density functional theory(DFT), and thermodynamic calculations. First, DFT calculations showed that total energies of the Mo-doped Ti C–Fe superlattices strongly depend on the position of Mo defects, and are minimized when the Mo atom is located at the TiC/Fe interface, supporting the probable formation of MoC-like interphase at the TiC/Fe interface region. Then, APT analysis confirmed the DFT predictions by finding that about6.5 wt.% Mo is incorporated in the Ti C–Fe(Mo) composite and that sub-micrometer thick(Ti,Mo)C interphase is indeed formed near the interface. The MD simulations show that Mo atoms migrate to the Mo-free TiC–Fe interface at elevated temperatures and the mechanical strength of the interface is considerably enhanced, which is in good agreement with experimental observations.

关键词： Metal matrix composites(MMCs) Titanium carbide Fe matrix composite Infiltration Molybdenum Interfacial property

Development of single-action,two-step clinching system using finite element analysis

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2009年第B9期19卷 266-270页

作者： Seong-wook LEE Tae-Hyung KIM Geun-jo HAN Power & Industrial Systems R&D Center Hyosung Corporation Department of Mechanical Engineering Department of Mechanical Engineering Dong-A University

Traditional manufacturing processes for bending and combining the upper and lower heat insulation plates for a car catalytic converter need two kinds of bending dies. This study was carried out to develop a single-action, two-step clinching system for clinching heat insulation plates. To design the operating mechanism for this clinching system, finite element analysis was used to estimate the bending load needed and to predict the bent shape of the heat insulation plate. Then a recovery and cushioning system was designed for the bending die. It is expected that this new process will improve the manufacturing quality of heat insulation plates and will reduce manufacturing cost. And a higher value-added technique for mold and pressing systems was introduced.

关键词：缓冲系统有限元分析开发汽车催化转化器单动模具技术隔热板板弯曲

Fabrication of practical deformable displays:advances and challenges

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2023年第5期12卷 716-728页

作者： Dong wook Kim Seong Won Kim Gyujeong Lee Jangyeol Yoon Sangwoo Kim jong-Ho Hong Sung-Chan jo Unyong Jeong Department of Materials Science and Engineering Pohang University of Science and Technology(POSTECH)77 Cheongam-roNam-gu37673 PohangGyeongbukRepublic of Korea Physical Intelligence Department Max Planck Institute for Intelligent SystemsHisenbergstr.370569 StuttgartGermany Advanced Research Team Samsung Display Corporation1 Samsung-roYongin-siGyeonggi-doRepublic of Korea

Display form factors such as size and shape have been conventionally determined in consideration of usability and *** recent trends requiring wearability and convergence of various smart devices demand innovations in display form factors to realize deformability and large *** displays that are foldable,multi-foldable,slidable,or rollable have been commercialized or on the edge of product *** such two-dimensional(2D)expansion of displays,efforts have been made to develop three dimensional(3D)free-form displays that can be stretched and crumpled for use in realistic tactile sensation,artificial skin for robots,and on-skin or implantable *** review article analyzes the current state of the 2D and 3D deformable displays and discusses the technological challenges to be achieved for industrial commercialization.

关键词： artificial sensation dimensional

Sex-based differences in histology,staging,and prognosis among 2983 gastric cancer surgery patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World journal of Gastroenterology 2022年第9期28卷 933-947页

作者： Yonghoon Choi Nayoung Kim Ki wook Kim Hyeong Ho jo Jaehyung Park Hyuk Yoon Cheol Min Shin Young Soo Park Dong Ho Lee Hyeon Jeong Oh Hye Seung Lee Young Suk Park Sang-Hoon Ahn Yun-Suhk Suh Do joong Park Hyung-Ho Kim Ji-Won Kim Jin Won Kim Keun-wook Lee Won Chang Ji HoonPark Yoon Jin Lee Kyoung Ho Lee Young Hoon Kim Department ofInternal Medicine Seoul National University Bundang HospitalSeongnam 13620South Korea Nayoung Department of Internal Medicine Seoul National University College of MedicineSeoul 03080South Korea Department of Pathology Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Pathology Seoul National University College of MedicineSeoul 03080South Korea Department of Surgery Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Surgery Seoul National University College of MedicineSeoul 03080South Korea Department of Radiology Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Radiology Seoul National University College of MedicineSeoul 03080South Korea

BACKGROUND Few studies have been conducted on sex differences in the incidence, pathophysiology, and prognosis of gastric cancer(GC).AIM To analyze the differences in GC characteristics according to sex in patients who underwent surgical treatment for *** A total of 2983 patients diagnosed with gastric adenocarcinoma who received surgical treatment at the Seoul National University Bundang Hospital between 2003 and 2017 were *** clinicopathological characteristics, histologic type of GC, overall and GC-specific survival rates, and associated risk factors were *** Among the 2983 patients, 2005(67.2%) and 978(32.8%) were males and females, *** average age of the female group(59.36 years) was significantly younger than that of the male group(61.66 years;P < 0.001).Cancer of the gastric body(P < 0.001) and diffuse-type histology(P < 0.001) were more common in females than in *** trend was more prominent in females younger than 60 years of age, with a significantly higher proportion of diffuse-type cancer than in the male *** of sex, diffuse-type GC was more common in younger patients, and the proportion of intestinal-type GC increased with *** overall survival rate was significantly higher in females(P < 0.001).However, this difference disappeared for GC-specific survival(P = 0.168), except for the poor GC-specific survival rate in advanced-stage cancer(stage Ⅲ or above) in females(P = 0.045).The risk factors for GC-related mortality were older age, upper location of GC, and diffuse-or mixed-type *** terms of comorbidities, more males died from diseases other than GC, including other malignancies such as lung cancer, hepatocellular carcinoma, and pancreatic cancer, and respiratory diseases such as interstitial lung disease and chronic obstructive pulmonary disease, while there were relatively more cardiovascular or cerebrovascular deaths in *** Sex-based differences in GC were

关键词： Gastric cancer Histology Prognosis Sex difference Survival