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Co/Pt multilayer-based pseudo spin valves with perpendicular magnetic anisotropy

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Rare Metals 2014年第6期33卷 646-651页

作者： shuai Liu Guang-Hua Yu Mei-Yin Yang Hai-lang Ju Bao-He Li Xiao-Bai Chen School of Materials Science and Engineering University of Science and Technology Beijing State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences School of Science Beijing Technology and Business University

Pseudo spin valves（SVs） exhibiting perpendicular magnetic anisotropy were prepared by magnetron sputtering. Magnetization measurements of the Co/Pt multilayers were performed to select the reference and free layers. The selection criteria are square magnetic hysteresis loops, weaker current shunting effect, and proper coercivity. The optimal reference layer and free layer are Pt（5.0 nm）/[Co（0.4 nm）/Pt（0.6 nm）]3/Co（0.4 nm）/Cu（3.0 nm）and Cu（3.0 nm）/[Co（0.4 nm）/Pt（1.5 nm）]4, *** resulting pseudo SV exhibits two well-separated hysteresis loops when the field is applied perpendicular to the film plane. The minor hysteresis loop corresponding to the free layer shifts toward negative direction of the magnetic field axis, indicating ferromagnetic interlayer exchange coupling between the two magnetic layers. The coupling also enhances the coercivity（HC） of both layers. The perpendicular giant magnetoresistance（GMR） of 2.7 % is achieved with current in plane measurement. The GMR first increases when Pt seed layer is thickened, reaches a maximum of 3.0 % at 4 nm and then decreases with the further increase of thickness. But thicker Cu spacer layer always lowers the GMR of the SV.

关键词： Perpendicular magnetic anisotropy Spin valve Giant magnetoresistance Ferromagnetic coupling Co/Pt multilayers

图书情报服务国家重大疫情治理的路径探析——基于64种期刊“专题征文启事”的解读

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海南广播电视大学学报 2021年第1期22卷 43-48页

作者：辛璐璐郎帅山东科技大学文法学院山东青岛266590 中国石油大学(华东)马克思主义学院山东青岛266580

突发疫情语境下,以目前64种期刊发布的疫情“专题征文启事”为研究样本,对学科分类、征文主题、选题方向等指标进行分析解读,有助于理清当前国家重大疫情治理亟需解决的问题,预测“国家重大疫情治理知识谱系”构建的未来方向,明确图书... 详细信息

突发疫情语境下,以目前64种期刊发布的疫情“专题征文启事”为研究样本,对学科分类、征文主题、选题方向等指标进行分析解读,有助于理清当前国家重大疫情治理亟需解决的问题,预测“国家重大疫情治理知识谱系”构建的未来方向,明确图书情报界在国家应急管理体系中角色和地位。样本期刊疫情“专题征文启事”为图书情报服务国家重大疫情治理提供了切入点和突破口。寻求建立相关主题数据库与期刊索引,为国家重大疫情治理提供智识支持,应成为今后图书情报工作的一个重点。

关键词：疫情专题征文启事知识谱系期刊索引国家重大疫情治理

基于感觉门控理论的电针疗法在持续性躯体形式疼痛障碍中的应用效果

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南昌大学学报（医学版） 2021年第3期61卷 44-48,66页

作者：孙伟铭李士林董香丽赵娜于国华帅浪袁也丰南昌大学第一附属医院康复医学科南昌大学第二附属医院心身医学科南昌大学第一附属医院心身医学科江西省人民医院康复医学科南昌330006

目的探讨基于感觉门控(SG)理论的电针疗法在持续性躯体形式疼痛障碍(PSPD)治疗中的应用效果及可能机制。方法将60例PSPD患者随机分为对照组和观察组,每组30例,对照组采用度洛西汀药物治疗,观察组采用度洛西汀联合电针治疗。比较2组治疗... 详细信息

目的探讨基于感觉门控(SG)理论的电针疗法在持续性躯体形式疼痛障碍(PSPD)治疗中的应用效果及可能机制。方法将60例PSPD患者随机分为对照组和观察组,每组30例,对照组采用度洛西汀药物治疗,观察组采用度洛西汀联合电针治疗。比较2组治疗前及治疗2、4、6周后疼痛、抑郁及焦虑状况变化情况,治疗前及治疗6周后感觉门控电位(SGP/P50)水平。疼痛程度采用数字评分法(NRS)评估,抑郁状况采用汉密尔顿抑郁量表(HAMD-24)评估,焦虑状况采用汉密尔顿焦虑量表(HAMA-14)评估。SGP/P50水平检测使用MEB-920肌电图/诱发电位仪,对受试者进行条件(S1)-测试(S2)短声听觉成对刺激模式测试,记录S1-P50波幅、S2-P50波幅、S1-P50波幅与S2-P50波幅差值(S1-S2)、P50抑制率(S2/S1)及P50抑制异常率。结果2组治疗后NRS、HAMD-24、HAMA-14评分均呈下降趋势;与对照组比较,观察组治疗2、4、6周后NRS评分显著下降(P0.05);观察组S1-P50波幅、S1-S2值治疗前后比较差异无统计学意义(P>0.05),S2-P50波幅、S2/S1、P50抑制异常率治疗后较治疗前明显降低(P<0.05);与对照组比较,观察组治疗后S2-P50波幅、S2/S1及P50抑制异常率显著降低(P<0.05)。结论电针可能通过调控PSPD患者的感觉门控功能,缓解PSPD患者的疼痛,改善抑郁及焦虑症状。

关键词：持续性躯体形式疼痛障碍电针治疗感觉门控理论临床效果

Robust design of self-starting drains using Random Forest

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Journal of Mountain Science 2021年第4期18卷 973-989页

作者： GE Qi LIU Zhong-qiang SUN Hong-yue lang Dominik shuai Fei-xiang SHANG Yue-quan ZHANG Ying-qiu College of Civil Engineering and Architecture Zhejiang University 310058 HangzhouChina Norwegian Geotechnical Institute Oslo 0855Norway Ocean College Zhejiang UniversityZhoushan 316021China

Groundwater lowering is one of the most important countermeasures to avoid the risk of rainfall-triggered ***,the long-term reliability of many drainage methods is often a matter of concern since the drains may easily get clogged.A new hydraulic-driven self-starting drainage method is presented in this *** the proposed Random Forest(RF)based robust design approach for the selfstarting drains,the datasets are generated using an automatically controlled numerical modeling *** deterministic analysis is carried out based on uncertain soil parameters and the specific designs selected using Uniform Design(UD).The ensemble of RF models is applied in the design process to improve computing *** requirements,design robustness,and cost efficiency are simultaneously considered utilizing multiobjective optimization.A straightforward and efficient framework that focuses on difficulties caused by an enormous design space is established for the robust design of the self-starting drains,and improved computation efficiency is *** effectiveness of the proposed approach is illustrated with a case study,the Qili landslide in Zhejiang Province,China.

关键词： Landslides Self-starting drains Random Forest Robust geotechnical design

氧化铝陶瓷和高分子聚乙烯磨损颗粒刺激诱导型一氧化氮合酶和过氧亚硝基阴离子生成的实验研究

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临床骨科杂志 2006年第6期9卷 555-558页

作者：程涛戴闽刘虎诚宗世璋程细高范红先帅浪姚浩群南昌大学第一附属医院骨二科江西南昌330006

目的研究和比较氧化铝陶瓷和高分子聚乙烯磨损颗粒在动物体内诱导型一氧化氮合酶(iNOS)和过氧亚硝基阴离子(ONOO-)表达的变化,探讨其在人工假体无菌性松动病理过程的意义。方法昆明小鼠72只,随机均分为3组,构建小鼠air-pouch动物模型。... 详细信息

目的研究和比较氧化铝陶瓷和高分子聚乙烯磨损颗粒在动物体内诱导型一氧化氮合酶(iNOS)和过氧亚硝基阴离子(ONOO-)表达的变化,探讨其在人工假体无菌性松动病理过程的意义。方法昆明小鼠72只,随机均分为3组,构建小鼠air-pouch动物模型。实验组分别注射氧化铝陶瓷颗粒悬液3 m l(A组)和高分子聚乙烯颗粒悬液3m l(B组),对照组注射磷酸盐缓冲盐水3 m。l分别于注射后第3、7、14 d后各处死8只,取出air-pouch囊壁组织。光镜下观察囊壁组织病理变化,细胞计数反映炎性细胞浸润和增殖程度,免疫组化染色法观察iNOS及ONOO-体内生成标志物硝基酪氨酸(NT)的表达与分布。结果光镜下实验组(A组和B组)可见大量巨噬细胞浸润和增殖,均存在iNOS、NT染色阳性细胞,而对照组未见明显组织细胞反应,仅见极少数染色呈阳性的细胞;与对照组相比,实验组细胞计数和iNOS、NT阳性细胞率差异均有显著性(P<0.01);各时间点细胞计数B组均高于A组(P<0.05);第14天时,B组iNOS、NT阳性细胞率明显高于A组(P<0.01);各时间点iNOS的表达与NT的表达呈正相关(r=0.623,P<0.05)。结论两种磨损颗粒均能诱导iNOS、ONOO-的表达,并且高分子聚乙烯颗粒高于氧化铝陶瓷磨损颗粒;过量的内源性NO和ONOO-可能与假体周围无菌性松动有关。

关键词：磨损颗粒假体失效骨溶解诱导型一氧化氮合酶过氧亚硝基阴离子

Controllable preparation and disorder-dependent photoluminescence of morphologically different C_(60) microcrystals

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Chinese Physics B 2021年第8期30卷 433-439页

作者： Wen Cui De-Jun Li Jin-Liang Guo lang-Huan Zhao Bing-Bing Liu Shi-shuai Sun College of Physics and Materials Science Tianjin Normal UniversityTianjin 300387China State Key Laboratory of Superhard Materials Jilin UniversityChangchun 130012China College of Science Tianjin University of TechnologyTianjin 300384China

Different C_(60) crystals were synthesized by precipitation from a mixture of the good solvent m-xylene and the poor solvent isopropyl *** samples were characterized by scanning electron microscopy(SEM),Raman spectroscopy,thermogravimetric analysis,and high resolution transmission electron microscope(HRTEM).We found that the morphologies and sizes of the samples could be controlled by adjusting the volume ratio between the good and poor ***,an unexpected short flower column-like crystal was synthesized at low ratios(from 1:6 to 1:12).Room temperature photoluminescence(PL)and HRTEM studies of the C_(60) crystal samples reveal that the PL efficiency of the crystals decreases with increasing crystalline order and that the disordered C_(60) crystals synthesized at the ratio of 1:2 show 10 times higher PL efficiency than that of pristine C_(60).The mechanism of the growth process of these C_(60) crystals was also studied by replacing the good solvents m-xylene with toluene and mesitylene.

关键词： C_(60)crystals morphology photoluminescence growth process

On the Formation of the Double Neutron Star Binary PSR J1846-0513

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Research in Astronomy and Astrophysics 2024年第11期24卷 259-267页

作者： Long Jiang Kun Xu shuai Zha Yun-lang Guo Jian-Ping Yuan Xiang-Li Qian Wen-Cong Chen Na Wang School of Science Qingdao University of TechnologyQingdao 266525China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China School of Physics and Electrical Information Shangqiu Normal UniversityShangqiu 476000China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Department of Astronomy Nanjing UniversityNanjing 210023China Department of Intelligent Engineering Shandong Management UniversityJinan 250357China

The double neutron star PSR J1846-0513 is discovered by the Five-hundred-meter Aperture Spherical radio Telescope(FAST)in Commensal Radio Astronomy FAST *** pulsar is revealed to be harbored in an eccentric orbit with e=0.208 and an orbital period of 0.613 *** total mass of the system is constrained to b2.6287(35)M_(⊙),with a mass upper limit of 1.3455 M_(⊙)for the pulsar and a mass lower limit of 1.2845 M_(⊙)for th companion *** reproduce its evolution history,we perform a 1D model for the formation of PSR J1846-0513whose progenitor is assumed to be neutron star—helium(He)star system via MESA *** the larg eccentricity is widely believed to originate from an asymmetric supernova explosion,we also investigate th dynamical effects of the supernova *** simulated results show that the progenitor of PSR J1846-0513could be a binary system consisting of a He star of 3.3-4.0 M_(⊙)and a neutron star in a circular orbit with an initia period of~0.5 day.

关键词： stars evolution stars neutron (stars:)binaries general stars individual(PSR J1864-0513)

A converged ubiquitin-proteasome pathway for the degradation of TOC and TOM tail-anchored receptors

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Journal of Integrative Plant Biology 2024年第5期66卷 1007-1023页

作者： Meijing Yang shuai Chen Shey-Li Lim lang Yang Jia Yi Zhong Koon Chuen Chan Zhizhu Zhao Kam-Bo Wong Junqi Wang Boon Leong Lim School of Biological Sciences University of Hong KongPokfulam 999077Hong KongChina Department of Biology Southern University of Science and TechnologyShenzhen 518055China School of Biomedical Engineering Shenzhen UniversityShenzhen 518060China School of Life Sciences The Chinese Universityof Hong KongShatin 999077HongKongChina State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongShatin 999077Hong KongChina HKU Shenzhen Institute of Research and Innovation Shenzhen 518052China

In plants,thousands of nucleus-encoded proteins translated in the cytosol are sorted to chloroplasts and mitochondria by binding to specific receptors of the TOC(translocon on the outer chloroplast membrane)and the TOM(translocon on the outer mitochondrial membrane)complexes for import into those *** degradation pathways for these receptors are ***,we discovered a converged ubiquitin-proteasome pathway for the degradation of Arabidopsis thaliana TOC and TOM tail-anchored *** receptors are ubiquitinated by E3 ligase(s)and pulled from the outer membranes by the AAA+adenosine triphosphatase CDC48,after which a previously uncharacterized cytosolic protein,transmembrane domain(TMD)-binding protein for tail-anchored outer membrane proteins(TTOP),binds to the exposed TMDs at the C termini of the receptors and CDC48,and delivers these complexes to the 26S proteasome.

关键词： 26S proteasome CDC48 SP1 TOC TOM ubiquitination

Effects of Blast Wave-induced Biomechanical Changes on Lung Injury in Rats

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Biomedical and Environmental Sciences 2020年第5期33卷 338-349页

作者： LIU Wei CHAI Jia Ke QIN Bin HAN Shao Fang WANG Xiao Teng JIANG shuai BAI Hai Liang LIU Ling Ying CHANG Yang YUE Xiao Tong WU Yu Shou ZHANG Zi Hao TANG lang Medical School of Chinese PLA Beijing 100853China Department of Burn and Plastic Surgery Burns InstituteBurn&Plastic Hospital of Chinese PLA General HospitalFourth Medical Center of Chinese PLA General HospitalBeijing 100048China Science and Technology on Transient Impact Laboratory Beijing 102202China Fourth Medical Center of Chinese PLA General Hospital Beijing 100048China

Objective To observe the dynamic impacts of shock waves on the severity of lung injury in rats with different injury *** Simulate open-field shock waves;detect the biomechanical effects of explosion sources at distances of 40,44,and 48 cm from rats;and examine the changes in the gross anatomy of the lungs,lung wet/dry weight ratio,hemoglobin concentration,blood gas analysis,and *** Biomechanical parameters such as the overpressure peak and impulse were gradually attenuated with an increase in the injury *** lung tissue hemorrhage,edema,oxygenation index,and pathology changed more significantly for the 40 cm group than for the 44 and 48 cm *** overpressure peak and impulse were significantly higher for the 40 cm group than for the 44 and 48 cm groups(P<0.05 or P<0.01).The animal mortality was significantly higher for the 40 cm group than for the other two groups(41.2%vs.17.8%and 10.0%,P<0.05).The healing time of injured lung tissues for the 40 cm group was longer than those for the 44 and 48 cm *** The effects of simulated open-field shock waves on the severity of lung injuries in rats were correlated with the injury distances,the peak overpressure,and the overpressure impulse.

关键词： Shock wave Animal model Open-field blast Lung injury Biomechanical effect