We report that the ferromagnetic resonance(FMR)response of the CoFeB/HfO2 heterostructures is stabilized and reversibly manipulated by ionic gel.Ionic gel with excellent flexibility is used as a medium to form an elec...We report that the ferromagnetic resonance(FMR)response of the CoFeB/HfO2 heterostructures is stabilized and reversibly manipulated by ionic gel.Ionic gel with excellent flexibility is used as a medium to form an electric field.When a 4 V gate voltage is applied,the resonance field Hr and peak-to-peak linewidthΔHpp at different angles are regulated.Whenθ=20°,the Hr is regulated up to 82 Oe.Whenθ=70°,ΔHpp is tuned up to 75 Oe.When the gate voltage is repeatedly applied,the FMR spectra can be freely switched between the initial state and the gated state.Our study provides an effective method to manipulate the damping of the magnetic film stably and reversibly.展开更多
Background:Burns are one of the major traumas that may affect older individuals.The purpose of this study was to investigate the epidemiological and clinical characteristics of geriatric burns at a major center in sou...Background:Burns are one of the major traumas that may affect older individuals.The purpose of this study was to investigate the epidemiological and clinical characteristics of geriatric burns at a major center in south-west China.Methods:This retrospective study was conducted at the Institute of Burn Research,Southwest Hospital of Army Medical University between 2010 and 2016,and the data collected from medical records included admission date,age,gender,premorbid disease,burn etiology,injured anatomical location,burn area and depth,inhalation injury,number of surgeries,length of stay(LOS),clinical outcome,and medical cost.Results:Of the 693 older burn patients included,60.75%were male and 56.85%were aged 60–69 years.Burns peaked in December–March and June.Flamewas the most common cause of burns,making up 51.95%of all cases,and also dominated in the burn patients aged 60–69 years.Limbs were the most common anatomical sites of burns(69.41%),and the median total body surface area(TBSA)was 5%(interquartile range[IQR]:2%–15%).The percentage of the patients who underwent surgeries and number of surgeries significantly increased in the cases of contact burns,younger age and full-thickness burns.Six deaths resulted in a mortality of 0.9%.The median LOSwas 16 days(IQR:8–29 days),and the main risk factors were more surgeries,better outcomes,and full-thickness burns.The median costwas 20,228 CNY(IQR:10,457–46,581.5 CNY),and major risk factors included longer LOS,larger TBSA,and more surgeries.Furthermore,compared to the earlier data from our center,the proportion of older adults among all burns(7.50%vs.4.15%),proportion of flame burns(51.95%vs.33.90%),and mean age(69.05 years vs.65.10 years)were significantly higher,while the proportion of premorbidities(16.9%vs.83.9%),mortality(0.9%vs.7.5%)and median TBSA(5%vs.21%)were significantly lower.Conclusions:This study suggested that closer attention should be paid to prevent burn injuries in older people aged 60–69 years,especially males,regarding incidents in the summer and winter,and flame burns.Moreover,tailored intervention strategies based on related risk factors should be under special consideration.展开更多
With the background of concept of rail transit major engineering,guided by industry demand,and based on the cultivation of practical abilities for outstanding engineering and technology talents in rail transit charact...With the background of concept of rail transit major engineering,guided by industry demand,and based on the cultivation of practical abilities for outstanding engineering and technology talents in rail transit characteristic majors,we are committed to creating a national strategic innovation and entrepreneurship practical education system for rail transit characteristic professionals,continu-ously improving the practical teaching mode.We will carry out the construction of a“matrix style”practical teaching system that integrates the four modernizations,the construction of a virtual simulation practical teaching platform that integrates expertise and innovation,and open sharing,as well as the reform and explo-ration of the entire chain of integrated practical education.The scheme focuses on improving students’ability to solve complex engineering problems and their abil-ity to apply composite knowledge and innovate and start businesses,cultivating a large number of outstanding rail transit engineering talents with solid professional foundations,outstanding practical abilities,and innovative and entrepreneurial qualities.展开更多
基金the National Natural Science Foundation of China(Grant Nos.51671099 and 11974149)the Open Foundation Project of Jiangsu Key Laboratory of Thin Films(Grant No.KJS1745)+1 种基金the Program for Changjiang Scholars and Innovative Research Team in University(Grant No.IRT-16R35)the Fundamental Research Funds for the Central Universities。
文摘We report that the ferromagnetic resonance(FMR)response of the CoFeB/HfO2 heterostructures is stabilized and reversibly manipulated by ionic gel.Ionic gel with excellent flexibility is used as a medium to form an electric field.When a 4 V gate voltage is applied,the resonance field Hr and peak-to-peak linewidthΔHpp at different angles are regulated.Whenθ=20°,the Hr is regulated up to 82 Oe.Whenθ=70°,ΔHpp is tuned up to 75 Oe.When the gate voltage is repeatedly applied,the FMR spectra can be freely switched between the initial state and the gated state.Our study provides an effective method to manipulate the damping of the magnetic film stably and reversibly.
基金supported by the National Natural Science Foundation of China(Grant No.81801915,Grant No.81630055,Grant No.81920108022)the Talent Programme of ThirdMilitary Medical University(Army Medical University)(Grant No.XZ-2019-505-065)+2 种基金the Science and Technology Innovation Plan of Southwest Hospital(Grant No.SWH2016ZDCX2014)the Key Laboratory of Emergency and Trauma(Hainan Medical University)Ministry of Education(Grant No.KLET-201909).
文摘Background:Burns are one of the major traumas that may affect older individuals.The purpose of this study was to investigate the epidemiological and clinical characteristics of geriatric burns at a major center in south-west China.Methods:This retrospective study was conducted at the Institute of Burn Research,Southwest Hospital of Army Medical University between 2010 and 2016,and the data collected from medical records included admission date,age,gender,premorbid disease,burn etiology,injured anatomical location,burn area and depth,inhalation injury,number of surgeries,length of stay(LOS),clinical outcome,and medical cost.Results:Of the 693 older burn patients included,60.75%were male and 56.85%were aged 60–69 years.Burns peaked in December–March and June.Flamewas the most common cause of burns,making up 51.95%of all cases,and also dominated in the burn patients aged 60–69 years.Limbs were the most common anatomical sites of burns(69.41%),and the median total body surface area(TBSA)was 5%(interquartile range[IQR]:2%–15%).The percentage of the patients who underwent surgeries and number of surgeries significantly increased in the cases of contact burns,younger age and full-thickness burns.Six deaths resulted in a mortality of 0.9%.The median LOSwas 16 days(IQR:8–29 days),and the main risk factors were more surgeries,better outcomes,and full-thickness burns.The median costwas 20,228 CNY(IQR:10,457–46,581.5 CNY),and major risk factors included longer LOS,larger TBSA,and more surgeries.Furthermore,compared to the earlier data from our center,the proportion of older adults among all burns(7.50%vs.4.15%),proportion of flame burns(51.95%vs.33.90%),and mean age(69.05 years vs.65.10 years)were significantly higher,while the proportion of premorbidities(16.9%vs.83.9%),mortality(0.9%vs.7.5%)and median TBSA(5%vs.21%)were significantly lower.Conclusions:This study suggested that closer attention should be paid to prevent burn injuries in older people aged 60–69 years,especially males,regarding incidents in the summer and winter,and flame burns.Moreover,tailored intervention strategies based on related risk factors should be under special consideration.
基金This work was financially supported by the National Natural Science Foundation of China(62067006)The Ministry of education of Humanities and Social Science project(21YJC880085)+3 种基金Gansu Natural Science Foundation(23JRRA845)Gansu University Innovation Fund Project(2021B-092)Open fund project of Key Laboratory of four power BIM engineering and intelligent application railway industry(BIMKF-2021-05)China University industry university research innovation fund(2021BCB02001).
文摘With the background of concept of rail transit major engineering,guided by industry demand,and based on the cultivation of practical abilities for outstanding engineering and technology talents in rail transit characteristic majors,we are committed to creating a national strategic innovation and entrepreneurship practical education system for rail transit characteristic professionals,continu-ously improving the practical teaching mode.We will carry out the construction of a“matrix style”practical teaching system that integrates the four modernizations,the construction of a virtual simulation practical teaching platform that integrates expertise and innovation,and open sharing,as well as the reform and explo-ration of the entire chain of integrated practical education.The scheme focuses on improving students’ability to solve complex engineering problems and their abil-ity to apply composite knowledge and innovate and start businesses,cultivating a large number of outstanding rail transit engineering talents with solid professional foundations,outstanding practical abilities,and innovative and entrepreneurial qualities.
