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前馈控制护理干预在机器人辅助胸腔镜肺癌根治术患者麻醉恢复管理中的应用

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中国现代医生 2024年第15期62卷 37-41页

作者：李玮夏雪张文文任春光山东省聊城市人民医院麻醉科山东聊城252500

目的探讨前馈控制护理干预在机器人辅助胸腔镜肺癌根治术患者麻醉恢复管理中的应用。方法选取2021年12月至2022年5月山东省聊城市人民医院实施机器人辅助胸腔镜肺癌根治术的64例患者为研究对象,随机将其分为对照组和试验组,每组各32例... 详细信息

目的探讨前馈控制护理干预在机器人辅助胸腔镜肺癌根治术患者麻醉恢复管理中的应用。方法选取2021年12月至2022年5月山东省聊城市人民医院实施机器人辅助胸腔镜肺癌根治术的64例患者为研究对象,随机将其分为对照组和试验组,每组各32例。对照组患者给予常规护理措施,试验组患者在对照组的基础上采用前馈控制下的护理干预。比较两组患者的护士相关理论知识合格率、围手术期并发症发生情况、护理满意度、护理质量评分、恢复室停留时间、术前及出恢复室时的焦虑自评量表(self-rating anxiety scale,SAS)及抑郁自评量表(self-rating depression scale,SDS)评分。结果试验组患者的护士相关理论知识合格率显著高于对照组(P<0.05);试验组患者的压力性损伤总发生率及液路问题、躁动、低体温发生率均显著低于对照组(P<0.05);试验组患者的护理效果、护理专业性、护理操作、护理态度评分均显著高于对照组,恢复室停留时间显著短于对照组(P<0.05)。出恢复室时,试验组患者的SAS、SDS评分均显著低于本组术前及对照组(P<0.05)。结论前馈控制护理干预应用于机器人辅助胸腔镜肺癌患者麻醉恢复期管理,可有效降低围手术期并发症发生率,缩短麻醉恢复时间,提高护理满意度和护理质量评分,改善患者的术后早期焦虑和抑郁状况,值得临床应用推广。

关键词：前馈控制护理机器人辅助胸腔镜肺癌根治术麻醉恢复

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内波在岸坡地形上的传播特性研究

中国高新科技 2024年第8期 116-118页

作者：张文旭王寅张雯雯熊夏晖章晨晖石莎南昌工程学院水利与生态工程学院江西南昌330099 江西省水利科学院防灾减灾与水工程安全研究所江西南昌330029 南昌工程学院瑶湖学院江西南昌330099

在稳定的分层流体系统中,外界轻微的扰动可能会在密度分层面(密度跃层)处引发内波现象。内波是周期短、波幅大、携带能量巨大的一类非线性波浪。海岸带为海陆之间相互作用的地带,是陆地和海洋的分界线。岸坡则是指海岸带的水下部分,一... 详细信息

在稳定的分层流体系统中,外界轻微的扰动可能会在密度分层面(密度跃层)处引发内波现象。内波是周期短、波幅大、携带能量巨大的一类非线性波浪。海岸带为海陆之间相互作用的地带,是陆地和海洋的分界线。岸坡则是指海岸带的水下部分,一般可概化为斜坡。内波在岸坡上传播时,波形、传播特性、能量都与平坡环境差别极大。在此类近岸及河口复杂的水动力环境,内波更易对水下结构物造成巨大威胁。因此,研究内波在岸坡上的传播特性对维护水上建筑物安全稳定具有重要意义。文章对国内外学者的内波相关研究进行整理,具体对内波主要研究方法、内波在岸坡上传播特性这两大方面的研究成果进行总结。

关键词：岸坡内波传播特性

Dependence of the stability of organic light-emitting diodes on driving mode

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Chinese Science Bulletin 2011年第21期56卷 2210-2214页

作者： zhang wenwen WU ZhaoXin zhang XinWen LIANG ShiXiong JIAO Bo HOU Xun State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China Key Laboratory for Physical Electronics and Devices of the Ministry of Education School of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Photonics Technology for Information of Shaanxi Province School of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China

We investigated the effects of pulsed current (PC) and direct current (DC) driving modes on the stability of organic light-emitting diodes with and without hole-injection layers (HILs).Two different HIL materials were used:copper phthalocyanine (CuPc) and 4,4',4″-tris(3-methylphenylphenylamino)triphenylamine (m-MDTATA).It was found that the half-lives of devices using PC driving modes were different from those of comparable devices using DC driving *** the devices without HILs,with CuPc HILs and with MTDATA HILs,the half-lives of the devices were changed by factors of 1.91,1.41 and 0.86,respectively,when operated in PC rather than DC driving *** analysis of the electrical characteristics of the corresponding hole-only devices showed that the number of holes injected into devices was greatly reduced by inserting an m-MTDATA layer compared with other *** results indicate that different ratios of injected electrons and holes can be obtained in these ***,these ratios play a dominant role in the dependence of the stability of the device on the driving mode.

关键词：有机发光二极管驾驶模式稳定 ILS设备驱动模式脉冲电流 CuPc 电气特性

弃土基可控性低强度材料静态力学特性及孔隙分布特征

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南水北调与水利科技（中英文） 2024年第S1期22卷 188-195页

作者：包益軻刘惠李书进王宁宁陈徐东张文文常州大学环境科学与工程学院江苏常州213164 常州工学院土木建筑工程学院江苏常州213000 南京三合建环保科技有限公司南京210000 河海大学土木与交通学院南京210024

针对大规模的水利水电项目通常需要一定量的土地用于建设水库、水电站等基础设施,导致产生大量的工程弃土,利用开挖弃土制备土基可控性低强度材料,采用数字图像相关技术(digitalimage correlation,DIC)和声发射技术(acoustic emission,... 详细信息

针对大规模的水利水电项目通常需要一定量的土地用于建设水库、水电站等基础设施,导致产生大量的工程弃土,利用开挖弃土制备土基可控性低强度材料,采用数字图像相关技术(digitalimage correlation,DIC)和声发射技术(acoustic emission,AE)监测试件破坏特征以及损伤演化机制,通过压汞法(mercury intrusion porosimetry,MIP)和扫描电镜(scanning electron microscopy,SEM)观察试件内部孔隙分布特征。结果表明,试件受压破坏后呈现完全破碎形态,裂缝在贯穿试件的过程中沿着最初方向持续发展,荷载到达峰值后裂缝发展主要以延伸为主直至破坏,试件内部拉伸破坏和剪切破坏并无明显区别。试件内部孔隙率较高,孔隙较大,整体黏结性较低,部分孔隙有水化产物充填,在加载过程中起连结作用。本研究为科学调控弃土基可控性低强度材料力学性能提供参考。

关键词：工程弃土可控性低强度材料数字图像相关技术声发射技术压汞法

Co-expression of GR79 EPSPS and GAT generates highglyphosate-resistant alfalfa with low glyphosate residues

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aBIOTECH 2023年第4期4卷 352-358页

作者： Yingying Meng wenwen zhang Zhaoming Wang Feng Yuan Sandui Guo Hao Lin Lifang Niu Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Inner Mongolia Pratacultural Technology Innovation Center Co. LtdHohhot 010010China National Center of Pratacultural Technology Innovation(Under Preparation) Hohhot 010010China

Weed competition seriously threatens the yield of alfalfa, the most important forage legume worldwide,thus generating herbicide-resistant alfalfa varieties is becoming a necessary cost-effective strategy toassist farmers for weed control. Here, we report the co-expression of plant codon-optimized forms ofGR79 EPSPS (pGR79 EPSPS) and N-acetyltransferase (pGAT) genes, in alfalfa, via Agrobacterium-mediated transformation. We established that the pGR79 EPSPS-pGAT co-expression alfalfa lines were able totolerate up to tenfold higher commercial usage of glyphosate and produced approximately ten timeslower glyphosate residues than the conventional cultivar. Our findings generate an elite herbicideresistant germplasm for alfalfa breeding and provide a promising strategy for developing high-glyphosate-resistant and low-glyphosate-residue forages.

关键词： Alfalfa pGR79 EPSPS pGAT High-glyphosate-resistant and low-glyphosate-residue Forage

Preorganization boosts the artificial esterase activity of a self-assembling peptide

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Science China Chemistry 2021年第9期64卷 1554-1559页

作者： Yaoxia Chen wenwen zhang Yinghao Ding Chunhui Liang Yang Shi Zhi-Wen Hu Ling Wang Zhimou Yang State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy Nankai UniversityTianjin300071China Key Laboratory of Bioactive Materials Ministry of EducationState Key Laboratory of Medicinal Chemical BiologyCollege of Life Sciencesand Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)National Institute for Advanced MaterialsNankai UniversityTianjin300071China Department of Cell Biology School of Basic Medical ScienceCheeloo College of MedicineShandong UniversityJinan250100China

The creation of artificial enzymes to mimic natural enzymes remains a great challenge owing to the complexity of the structural arrangement of the essential amino acids in catalytic *** this study,we used the phosphatase-based enzyme-instructed self-assembly(EISA)to supervise artificial esterases'final structures and catalytic *** reported that peptide precursors containing different phosphorylation sites could preorganize into alternated nanostructures and undergo dephosphorylation in the presence of alkaline phosphatase(ALP)with variation in kinetic and thermodynamic *** identical self-assembly compositions were formed after dephosphorylation,precursors with more enhanced preorganized states tended to better promote ALP dephosphorylation,facilitate further self-assembly,and strengthen the catalytic activities of the final *** envisioned that our strategy would be useful for further construction and manipulation of various artificial enzymes with superior catalytic activities.

关键词： enzyme-instructed self-assembly preorganization artificial esterase catalytic activities peptide folding

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直流断路器全工况串联型合成等效试验方法

华北电力大学学报（自然科学版） 2024年第1期51卷 124-134页

作者：陈其来齐磊刘珂鑫张翔宇张闻闻王靖飞徐党国彭兆伟宋鹏华北电力大学电气与电子工程学院北京102206 国网冀北电力有限公司电力科学研究院北京100053

混合式高压直流断路器作为直流电网的关键设备之一,完备的型式试验是保证其挂网运行时快速、可靠清除故障电流和故障恢复的重要手段。为了更好地等效混合式直流断路器分断及故障恢复过程中的高电压与大电流工况,研究了混合式直流断路器... 详细信息

混合式高压直流断路器作为直流电网的关键设备之一,完备的型式试验是保证其挂网运行时快速、可靠清除故障电流和故障恢复的重要手段。为了更好地等效混合式直流断路器分断及故障恢复过程中的高电压与大电流工况,研究了混合式直流断路器开断大电流和故障清除失败情况下的重合闸全过程等效性评价指标,提出了一种新型串联式的全压全流合成等效试验方法,通过适当的控制方式,方案可以在不过多增加控制复杂度,实现试验全工况等效,并通过对电容器组的高效复用,降低了试验的成本。在该方案中,试验回路由大电流回路和高电压回路串联,通过大电流回路单独提供开断电流,在断路器开断结束后投入高压试验回路,两个回路共同作用提供开断后稳态电压和重合闸的二次电流。通过对4 kV/8 kA断路器进行开断及重合闸实验,验证了该试验回路的可行性,并针对500 kV/25 kA工况下的断路器对比了该试验回路与现有并联合成试验回路,结果表明串联式的全压全流合成试验方法在等效性、二次控制简易性和经济性方面存在优势,为直流断路器全工况等效试验提供另一种可选择方案。

关键词：混合式高压直流断路器开断试验合成等效试验串联型试验回路全工况等效

Bird communities’responses to human-modified landscapes in the southern Anhui Mountainous Area

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Avian Research 2022年第1期13卷 49-56页

作者： Xue Wang Guang Zhu Haohao Ma Yi Wu wenwen zhang Yong zhang Chunlin Li Willem F.deBoer School of Resources and Environmental Engineering Anhui UniversityHefei230601China School of Life Sciences Anhui UniversityHefei230601China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing210042China College of Biology and the Environment Nanjing Forestry UniversityNanjing210037China Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration Anhui UniversityHefei230601China Wildlife Ecology and Conservation Group Wageningen University&Research6708PBWageningenthe Netherlands

Conversion of natural environments to human-modified landscapes is continuing at an unprecedented rate,exerting fundamental influences on global *** how wildlife communities respond to landscape modifications is critical to improve biodiversity conservation in human-dominated *** this study,we surveyed bird communities in three common habitats(i.e.,farmland,village,and forest)in the southern Anhui Mountainous Area during summer(August 2019)and winter(December 2020).The diversity metrics and species compositions of the avian communities were compared among the habitats,and the effects of land use composition in these habitats were *** the field surveys,we recorded 7599 birds of 120 species along 45 line transects of 1km in *** land use compositions differed among habitats,and land use diversity was the highest in villages and lowest in *** species richness and bird abundance in the two human-dominated habitats(i.e.,farmland and village)were higher than those in forest in both *** species composition also differed across habitat types in both *** species feeding on vertebrates,fish and carrion,and species feeding on plants and seeds were mainly found in habitats with less construction lands and lower land use diversity,while omnivorous species and species feeding on fruits and nectar or on invertebrates were less affected by these two *** indicator species analysis showed that most species associated with forest feed on invertebrates,while species feeding on plants and seeds were more correlated with farmland and *** results indicated that the conversion of natural habitats to human-dominated landscapes has pronounced impacts on bird communities in the study ***-dominated habitats harboured more avian species that deserve conservation ***,bird conservations should not be relaxed in forests because there were more than 20 species that had a high specific

关键词： Community composition Habitat changes Human interference Intermediate disturbance hypothesis Species diversity

Nanofibril Organization in Silk Fiber as Inspiration for Ductile and Damage-Tolerant Fiber Design

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Advanced Fiber Materials 2019年第3期1卷 231-240页

作者： Shihui Lin Chao Ye wenwen zhang Anchang Xu Shixian Chen Jing Ren Shengjie Ling School of Physical Science and Technology ShanghaiTech University393 Middle Huaxia RoadShanghai 201210China Jiangsu Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources Jiangsu Key Lab of Biomass‑Based Green Fuel and ChemicalsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China State Key Laboratory of New Textile Materials and Advanced Processing Technology School of Textile Science and EngineeringWuhan Textile UniversityWuhan 430200China

Ductile and damage-tolerant fibers(DDTFs)are desired in aerospace engineering,mechanical engineering,and biomedical engineering because of their ability to prevent the catastrophic sudden structural/mechanical ***,in practice,design and fabrication of DDTFs remain a major challenge due to finite fiber size and limited processing *** this regard,animal silks can provide *** are hierarchically structured protein fibers with an elegant trade-off of mechanical strength,extensibility and damage tolerance,making them one of the toughest materials *** this article,we confirmed that nanofibril organization could improve the ductility and damage-tolerance of silk fibers through restricted fibril shearing,controlled slippage and *** by these strategies,we further established a rational strategy to produce polyamide DDTFs by combining electrospinning and yarn-spinning *** resultant polymeric DDTFs show a silk-like fracture resistance behavior,indicating potential applications in smart textile,biomedicine,and mechanical engineering.

关键词： Fiber Silk Mechanical property Damage tolerance Bioinspired materials