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Bioinspired PcBN/hBN fibrous monolithic ceramic:High-temperature crack resistance responses and self-lubricating performances

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Journal of Advanced Ceramics 2022年第9期11卷 1391-1403页

作者： shu-na chen Hengzhong FAN Yunfeng SU Jicheng LI Junjie SONG Litian HU Yongsheng ZHANG State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The high strength and toughness of natural materials are mainly determined by a combination of mechanisms operating at different length scales,which can be used as a strategy to reduce the intrinsic brittleness of *** by the architectures of bamboo,the polycrystalline cubic boron nitride/hexagonal boron nitride(PcBN/hBN)fibrous monolithic ceramics with a long fiber arrangement structure was constructed with PcBN fiber cells and hBN cell boundaries,and its crack resistance responses and tribological performances were *** composite ceramic failed in a non-brittle manner with the rising resistance curve(R-curve)behavior,which was attributed to multiscale crack effects in the hierarchical *** maximum crack growth toughness was extremely high(approximately 21 MPa×m^(1/2)),corresponding to a 270%increase over the crack initiation *** fracture resistance could be retained even above 1000℃.Moreover,the composite ceramic exhibited low and stable friction coefficients(approximately 0.33)when paired with a Si_(3)N_(4)pin at high temperature(1000℃),owing to the lubrication function of hBN cell boundaries with weak van der Waals forces and a small amount of liquid B_(2)O_(3)*** a result,a synergistic improvement of mechanical and tribological properties at high temperature(1000℃)was realized by combining bionic structure and tribological *** provides important theoretical and technical support for expanding the application of self-lubricating composite ceramics in harsh environments.

关键词： self-lubricating composite ceramic bioinspired structure resistance curve(R-curve) high-temperature property friction and wear

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Expression profiles of glutathione S-transferase superfamily in Spodoptera litura tolerated to sublethal doses of chlorpyrifos

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Insect Science 2016年第5期23卷 675-687页

作者： Ni Zhang Jia Liu shu-na chen Li-Hua Huang Qi-Li Feng Si-Chun Zheng Laboratory of Developmental and Molecular Entomology Guangdong Provincial Key Laboratory of Biotechnology for Plant DevelopmentSchool of Life Sciences South China Normal University Guangzhou China

Chlorpyrifos （CPF） is a broad-spectrum organophosphate insecticide. Glu- tathione S-transferases （GSTs） in insects are a family of detoxification enzymes and they play critical roles in CPF detoxification. Spodoptera litura is one of the most destructive agricultural pests in tropical and subtropical areas in the world. In this study, 37 Slgsts from 46 unique transcripts of gsts in S. litura transcriptome data, including eight pre- viously reported GSTs, were identified and their expression patterns in susceptible and 12-generation-CPF-treated strains were analyzed to understand the roles of these Slgsts in sublethal doses of CPF tolerance. The results indicate that the members of the S. litura GST superfamily could be distinguished into three major groups： one group, includ- ing six cytosolic Slgsts （SIGSTel, SIGSTe3, SIGSTelO, SIGSTe15, SIGSTo2 and SIGSTs5） and two microsomal Slgsts （SIMGSTI-2 and SIMGST1-3）, was directly responsible for CPF induction in both 12-generation-treated and susceptible strains; the second group, including three cytosolic Slgsts （SlGSTe13, SIGSTtl and SIGSTzl） and one microsomal Slgst （SIMGSTI-1）, was induced only in the 12-generation-treated strain; the third group, including eight cytosolic Slgsts （two epsilon, three delta, one omega, one zeta and one un- classified Slgst）, was expressed 1.52-5.15-fold higher in the 12-generation-treated strain than in the susceptible strain.

关键词： chlorpyrifos expression glutathione S-transferase Spodoptera litura su-perfamily tolerance

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基于灰色关联理论的河北省经济增长影响因素分析

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河北师范大学学报（哲学社会科学版） 2008年第1期31卷 18-20页

作者：那书晨金浩河北工业大学管理学院天津300130

根据古典经济增长理论、新古典经济增长理论、二元经济理论、制度经济学,物质资本、劳动力、人力资本、技术进步、制度因素等被视为影响经济增长的主要因素。选取以上指标利用灰色关联理论对河北省经济增长的影响因素进行分析,可知,河... 详细信息

根据古典经济增长理论、新古典经济增长理论、二元经济理论、制度经济学,物质资本、劳动力、人力资本、技术进步、制度因素等被视为影响经济增长的主要因素。选取以上指标利用灰色关联理论对河北省经济增长的影响因素进行分析,可知,河北省应从加大教育经费投入、加快制度创新、优化产业结构、强化科技创新入手促进经济进一步增长。

关键词：经济增长灰色关联理论制度因素人力资本

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胰岛素治疗PGDM于不同血糖检测标准的妊娠结局分析

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检验医学与临床 2017年第A1期14卷 52-53页

作者：陈琪珍田淑娜陈雄上海市第一人民医院宝山分院妇产科上海200940

目的分析胰岛素治疗的糖尿病合并妊娠（PGDM）孕妇,了解达到不同血糖控制标准的母婴结局.方法 108例PGDM患者随机分为两组,治疗A组54例控制血糖在妊娠糖尿病（GDM）标准;治疗B组54例控制血糖在PGDM标准.观察两组孕妇妊娠并发症、妊娠... 详细信息

目的分析胰岛素治疗的糖尿病合并妊娠（PGDM）孕妇,了解达到不同血糖控制标准的母婴结局.方法 108例PGDM患者随机分为两组,治疗A组54例控制血糖在妊娠糖尿病（GDM）标准;治疗B组54例控制血糖在PGDM标准.观察两组孕妇妊娠并发症、妊娠结局及新生儿情况.结果 A组孕妇的并发症如妊娠期高血压疾病、羊水过多、阴道炎发生率低于B组,差异有显著性（P〈0.05）;新生儿结局中A组巨大儿、新生儿低血糖发生率低于B组,差异有显著性（P〈0.05）.结论建议PGDM孕妇在孕期不发生低血糖情况下将血糖控制在空腹及餐后2小时血糖≤5.3、6.7 mmol/L,HbA1c〈5.5%,其孕期并发症将有一定程度减少,而新生儿结局不受影响.

关键词：胰岛素糖尿病合并妊娠血糖水平妊娠结局

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Laser direct writing of flexible multifunctional airflow sensors on the Kevlar fabric

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nano Research 2025年第1期18卷 443-454页

作者： Wei Wang Zi-Qing chen Yong-Qi Li Yu-Long Wang Mei-chen Liu Yun-Bo Ruan Yang Zhang shu-Juan Liu Qiang Zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Zhe Jiang Topsun Logistic Control CO. LTD.Yuhuan 317600China Department of Rehabilitation Medicine School of Acupuncture-Moxibustion and Tuina and School of Health Preservation and RehabilitationNanjing University of Chinese MedicineNanjing 210023China

The growing interest in flexible devices has emerged as a global trend due to their advantages in flexibility,lightweight structure,and wearability,addressing the limitations of traditional *** wearable airflow sensors have been previously reported,the development of flexible fabric-based airflow sensors capable of functioning in environments with open flames—critical for fire rescue operations—has yet to be explored,largely due to the poor fire resistance of conventional *** this work,we first present a flexible,wearable,and multifunctional airflow sensor with excellent fire-resistant properties,fabricated through a simple direct laser writing *** sensor maintains airflow detection capabilities even in the presence of open ***,the fabrication of fabric-based sensors involves complex procedures such as carbon materials doping or vapor-phase deposition,leading to lengthy preparation cycles and high ***,fabric-based devices are inherently prone to *** address these challenges,we introduce twice-vertical laser-induced graphene(TVLIG)as a sensitive and reliable component for fire-resistant airflow *** resulting TVLIG/Kevlar fabric can be integrated into various garments,particularly protective suits,to form sensitive and fire-resistant airflow sensors capable of detecting airflow velocity and direction in both two-dimensional(2D)and three-dimensional(3D)spaces during fire ***,the TVLIG patterns can be expanded to multifunctional platforms,such as glucose detection for injured individuals,offering further applications in rescue *** functional expansion reduces the burden on rescue personnel and streamlines device *** its outstanding sensing capabilities,fire resistance,and expandability,the developed flexible airflow sensor shows great potential for various real-world rescue scenarios,promising advancements in wearable sensing technology for rescue enginee

关键词： flexible airflow sensor direct laser writing twice-vertical laser-induced graphene fire accident rescue Kevlar fabric

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Efficacy and safety of Tripterygium wilfordii glycosides tablets combined with Western medicine for patients with rheumatic immune diseases

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World Journal of Clinical Cases 2025年第6期13卷 14-23页

作者： Hang shu Xiao-Yu chen Jie Zhao Pin Li Zhen Sun Department of Traditional Chinese Medicine Hangzhou Special Service Recuperation Center of Chinese People's Liberation Army Air ForceNanjing 210000Jiangsu ProvinceChina Department of Convalescence Hangzhou Special Service Recuperation Center of Chinese People's Liberation Army Air ForceNanjing 210000Jiangsu ProvinceChina

BACKGROUND Rheumatic immune diseases are a group of chronic inflammatory diseases charac-terized by joint and systemic multi-organ involvement,including rheumatoid arthritis,systemic lupus erythematosus,and Sjogren’s syndrome,among *** pathogenesis of these diseases is related to the abnormal activation and regulatory imbalance of the immune *** prevalence and morbidity of rheumatic immune diseases are high,imposing a significant burden on patients'quality of life and socio-economic ***,the treatment of rheumatic immune diseases mainly relies on Western medicine,such as non-steroidal anti-inflammatory drugs,glucocorticoids,disease-modifying antirheumatic drugs,and ***,the therapeutic effects of Western medicine are not ideal,some patients poorly respond or are resistant to Western medicine,and long-term use often causes various adverse *** To systematically evaluate the efficacy and safety of Tripterygium wilfordii gly-cosides tablets combined with Western medicine in the treatment of patients with rheumatic immune *** This study conducted a meta-analysis to systematically evaluate the efficacy and safety of Tripterygium wilfordii glycosides tablets combined with Western medicine for patients with rheumatic immune *** and English databases were searched for randomized controlled trials(RCTs)on the treatment of rheumatic immune diseases with Tripterygium wilfordii glycosides tablets combined with Western *** quality of the included studies was assessed using the Cochrane risk of bias assessment ***-analysis was performed using RevMan 5.4 *** The meta-analysis included 11 RCTs involving 1026 patients with rheumatic immune *** combined treatment significantly reduced the risk of disease recurrence(relative risk=1.07,95%confidence interval:1.01-1.15,P<0.05)and showed no significant heterogeneity(I2=0%,P=0.53),indicating that Tripterygium wilfordii glycosides

关键词： Rheumatic immune diseases Tripterygium wilfordii polyglycosides tablets Western medicine treatment Systematic review Meta-analysis

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宫颈癌患者治疗后生活质量的影响因素分析

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中国妇幼健康研究 2017年第7期28卷 774-777页

作者：陈琪珍田淑娜陈雄上海市第一人民医院宝山分院妇产科上海200940

目的评估宫颈癌患者术后或放化疗后的生活质量(QOL)及其影响因素,以采用针对性治疗措施提高宫颈癌患者治疗后的生活质量。方法采用欧洲癌症研究与治疗组织生活质量核心调查表(EORTC QLQ-C30)对术后或放化疗后的100例宫颈癌患者进行生活... 详细信息

目的评估宫颈癌患者术后或放化疗后的生活质量(QOL)及其影响因素,以采用针对性治疗措施提高宫颈癌患者治疗后的生活质量。方法采用欧洲癌症研究与治疗组织生活质量核心调查表(EORTC QLQ-C30)对术后或放化疗后的100例宫颈癌患者进行生活质量调查。结果年龄对宫颈癌患者整体生活质量、角色功能、认知功能、疲乏和恶心、呕吐均有影响(t值分别为-0.3083、-2.114、-2.090、-2.495、2.619,均P<0.05)。家庭收入是影响整体生活质量、社会功能、经济困难的因素(t值分别为2.631、-3.082、-6.385,均P<0.05)。疾病分期是影响患者认知功能、情绪功能的因素(t值分别为-2.634、-4.861,均P<0.05)。肌层浸润深度、组织学转移、淋巴结转移均与宫颈癌患者的生活质量水平呈负相关。治疗方式是整体生活质量、疲乏、食欲减弱、经济困难的影响因素(t值分别为-5.171、3.471、2.023、2.738,均P<0.05)。结论重视宫颈癌的早诊早治,选择合理的治疗方式,为患者及其家人提供有针对性的治疗措施,可以提高宫颈癌患者治疗后的生活质量。

关键词：宫颈癌生活质量影响因素 EORTC QLQ-C30调查表

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Effect of H2 addition on process of primary slag formation in cohesive zone

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Journal of Iron and Steel Research International 2020年第2期27卷 132-140页

作者： Ya-na Qie Qing Lyu chen-chen Lan shu-hui Zhang Ran Liu College of Metallurgy and Energy Key Laboratory for Advanced Metallurgy TechnologyNorth China University of Science and TechnologyTangshan 063009HebeiChina

Based on the technology of gas-injection blast furnace(BF),the characteristics of primary slag formation with H2 addition were *** results indicate that,compared with traditional BF,the primary melt is formed at a lower temperature,which promotes the deformation of the solid burden *** the increase in temperature and H2 content,the quantity of formed melt containing FeO decreases sharply,corresponding to the crystallization of solid 2CaO Si02 during reduction.A wider softening range and narrower melting zone could be found in the gas-injection BF with a higher reduction *** permeability of burden layer is ameliorated as a result of decreased melt *** influence of H2 on the high-temperature properties of burden is not so conspicuous when the H2 addition is from 10 to 15 vol.%against 5 to 10 vol.%.What is more,the slag shows a better liquidity with the decrease in basicity,owing to the transformation of melt composition from a primary phase field with high melting point to that with low melting *** process of slag forming in gas-injection BF is characterized by earlier melt formation,less primary slag,higher melting temperature,better permeability and better liquidity,and the phase compositions of primary slag are close to those of final slag.

关键词： Reduction degradation Primary slag formation Melt Hydrogen addition Gas-injection blast furnace

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A 7-year-old boy with recurrent cyanosis and tachypnea:A case report

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World Journal of Clinical Cases 2022年第20期10卷 6974-6980页

作者： shu Li Li-na chen Lin Zhong Department of Pediatric Pulmonology and Immunology West China Second University Hospital of Sichuan UniversityChengdu 610066Sichuan ProvinceChina Key Laboratory of Birth Defects and Related Diseases of Women and Children Ministry of EducationWest China Second University Hospital of Sichuan UniversityChengdu 610066Sichuan ProvinceChina

BACKGROUND Brain tumors are the most common solid tumors in children and comprise 25%of all malignancies in *** presentations include headache,nausea and vomiting,gait abnormality,papilledema,and epileptic seizure;however,some symptoms can be very insidious,with atypical and misleading *** SUMMARY Here,we report a 7-year-old boy who presented with recurrent cyanosis and tachypnea after exercise for 2 *** body mass index was 26.43 kg/***,blood gas analysis,biochemical parameters,chest computed tomography scan,and echocardiograph suggested type II respiratory failure,pulmonary heart disease,and mild liver ***-invasive breathing support,antibiotics,and anti-heart failure therapy were *** patient’s pulse oxygen saturation increased to over 95%when he was awake but dropped to 50%-60%,accompanied by cyanosis,during sleep while receiving high-flow nasal cannula ***-related breathing disorder was *** the intensive care unit,however,polysomnography was *** magnetic resonance imaging revealed a space-occupying(cerebellum and brainstem)lesion,which was later confirmed to be pleomorphic xanthoastrocytoma by surgery and histopathology by tissue *** When treating patients with cyanosis and tachypnea,a broad differential diagnosis should be considered,including brain tumor.

关键词： Respiratory failure Pulmonary heart disease Sleep-related breathing disorders Pleomorphic xanthoastrocytoma Children Case report

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Role of the Greenland Sea ice anomaly in the late-spring drought over Northwest China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 1-5页

作者： Yang Liu Huopo chen nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of SciencesBeijingChina Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University for Information Science and TechnologyNanjingChina

Drought across Northwest China in late spring has exerted a vital effect on the local climate and agricultural production,and has been alleviated during the past *** study explored the influence of the preceding Arctic sea ice on the May drought in Northwest China caused by the precipitation *** analysis indicated that when the Greenland Sea ice concentration is abnormally high during February to April,the dry conditions in Northwest China tend to be *** increase of sea ice in the Greenland Sea can excite a meridional circulation,which causes sea surface temperature(SST)anomalies in the North Atlantic via the sea-air interaction,manifested as significant warm SST anomalies over the south of Greenland and the subtropical North Atlantic,but negative SST anomalies over the west of the *** abnormal SST pattern maintains to May and triggers a zonal wave train from the North Atlantic through Scandinavia and Central Asia to Northwest China,leading to abnormal cyclones in Northwest ***,Northwest China experiences a more humid climate than usual.

关键词： Arctic sea ice Greenland Sea North Atlantic SST Drought Northwest China

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