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Chinese Chemical Letters 2020年第8期31卷 2071-2076页

作者： Nan Zhang luming Yan Yang Lu Yizhuo Fan Sijia Guo Samira Adimi Dali Liu Shengping Ruan State Key Laboratory on Integrated Optoelectronics and College of Electronic Science&Engineering Jilin UniversityChangchun 130012China ARTICLE INFO

Semiconducting metal oxides have been considered as effective approach for designing highperformance chemical sensing *** this paper,a kind of metal-organic frameworks ZIF-8 was used as sacrificed template to prepare porous ZnO hollow nanocubes for the application in gas *** is found that changing calcination temperature and solvent can greatly influence the morphology of the material,which finally affects the gas sensing ***-sensing properties of the sensors were investigated in *** can be clearly seen that the material used methanol as reaction solvent with the decomposition at 350℃for 2 h(ZnO-350-M)showed the optimal formaldehyde-sensing behaviors compared with other materials prepared in this *** dynamic transients of the ZnO-350-M-based sensors demonstrated a high response value(about 10),fast response and recovery rate(4 s and 4 s,respectively)and good selectivity towards 100 ppm(part per million)formaldehyde as well as a low detectable limit(1 ppm).As exemplified for the sensing inve stigation towards formaldehyde,the porous ZnO hollow nanocubes showed a significantly improved chemical sensitivity due to the highly syne rgistic effects from the well exposed surfaces,defect states and the robust ZnO.

关键词： Metal-organic framework ZIF-8 Formaldehyde sensing Pore-rich structure ZnO nanocubes

High-performance flexural fatigue of carbon nanotube yarns

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Chinese Science Bulletin 2014年第29期59卷 3831-3834页

作者： Fu Xu Xiaolong Mo Sen Wan Changqing Jiang Hongwei Hao luming Li Institute of Man-Machine and Environment Engineering School of AerospaceTsinghua University

Carbon nanotube yarns(CNTY)possess good specific strength and specific *** such,their potential for commercial applications is *** performance is a significant consideration in yarn/wire *** this study,the flexural fatigue performance of CNTY spun from super-aligned carbon nanotube arrays was investigated using a reversed bending *** results showed that CNTY exhibited excellent resistance to pure flexural fatigue,significantly outperforming stainless steel wire;CNTY failed where a combination of flexural fatigue and tension–tension fatigue had special hollow fracture morphology,and CNTY resistance remained fundamentally unchanged in the combination fatigue process.

关键词：碳纳米管阵列抗疲劳性能挠曲管纱商业应用弯曲试验不锈钢丝弯曲疲劳

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智能化多功能电子报警围栏的研制

电工技术 2024年第6期 163-165页

作者：于益弘胡陆明张丰铄冯星智沈阳工程学院电力学院辽宁沈阳110136 国网西咸新区供电公司陕西西安712000

随着变电站内检修运维逐渐增多,传统安全围栏暴露出稳定性差、布置费时费力、警示作用有限、实时报警性能差等问题。针对传统围栏的不足,基于升降伸缩、红外对射、远程报警、信息交互等技术,设计一款智能化多功能电子报警围栏。该围栏... 详细信息

随着变电站内检修运维逐渐增多,传统安全围栏暴露出稳定性差、布置费时费力、警示作用有限、实时报警性能差等问题。针对传统围栏的不足,基于升降伸缩、红外对射、远程报警、信息交互等技术,设计一款智能化多功能电子报警围栏。该围栏采用预埋可伸缩式非金属绝缘支柱,极大地缩短了现场布置围栏时间,并且通过红外对射装置、雷达装置和报警装置同步实现现场实时报警和后台传输报警,增加了后台远程监管途径,实现实时报警。试验表明,该安全围栏可靠性高,实时监管能力突出,为营造良好的电力安全环境提供了基础。

关键词：红外对射声光报警预埋支柱智能化多功能雷达系统

连续性全尿道保留技术在单孔腹腔镜根治性前列腺切除术中的应用研究

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中华外科杂志 2024年第2期62卷 162-166页

作者：朱清毅林建中沈百欣魏勇沈露明朱建国何雪胡海斌顾民南京医科大学第二附属医院泌尿外科南京210011 南京医科大学第二附属医院放射科南京210011 南京医科大学第二附属医院病理科南京210011

目的初步探讨连续性全尿道保留技术在单孔腹腔镜根治性前列腺切除术中的可行性和效果。方法本研究为前瞻性病例系列研究。前瞻性收集2022年3—12月南京医科大学第二附属医院收治的符合入组条件(病理学分期≤pT2c期,Gleason评分≤7分,前... 详细信息

目的初步探讨连续性全尿道保留技术在单孔腹腔镜根治性前列腺切除术中的可行性和效果。方法本研究为前瞻性病例系列研究。前瞻性收集2022年3—12月南京医科大学第二附属医院收治的符合入组条件(病理学分期≤pT2c期,Gleason评分≤7分,前列腺特异性抗原<20μg/L,MRI检查结果提示尿道和前壁无肿瘤侵犯,既往无尿道严重外伤史),术前充分沟通后明确接受此术式的25例前列腺癌患者的资料。患者年龄(67.2±7.6)岁(范围:61~76岁)。手术由熟练开展单孔根治性前列腺切除术的医师实施。术后定期随访患者的尿控、肿瘤控制和手术并发症等;日尿垫用量0~1片为恢复尿控,拔除导尿管后24 h内尿垫用量0~1片为即刻尿控。结果所有病例顺利完成手术,无中转开放手术。手术时间(128.4±22.4)min(范围:100~145 min),术中出血量(68.2±13.7)ml(范围:50~120 ml),4例发生尿道损伤并进行缝合修补。术后24 h、1周、4周和7周尿控恢复率分别为80.0%、84.0%、92.0%和100%。术后大切片病理学检查结果提示1例前列腺基底部切缘阳性,所有患者尿道周围腺体切缘阴性。术后并发症包括泌尿系感染3例、尿痛2例、急性尿潴留1例。术后3个月MRI随访结果提示膀胱和尿道形态基本正常。术后3个月和6个月前列腺特异性抗原值均<0.1μg/L。结论连续性全尿道保留技术在单孔腹腔镜根治性前列腺切除术中可行,患者术后早期尿控和肿瘤学效果达到预期。

关键词：前列腺肿瘤腹腔镜检查全尿道保留尿控

不同剂量麻醉药在超高龄患者腰硬联合麻醉中的应用效果分析

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中国社区医师 2024年第18期40卷 65-67页

作者：苏海文李海芳高路明姜文霞青岛市第三人民医院山东青岛266041 青岛市中医医院(青岛市海慈医院) 山东青岛266033

目的:分析不同剂量麻醉药在超高龄患者腰硬联合麻醉中的应用效果。方法:选取2019年6月—2020年8月于青岛市第三人民医院行腰硬联合麻醉手术的患者96例作为研究对象,采用随机数字表法分为观察组和对照组,各48例。观察组给予麻醉药2.0 mL... 详细信息

目的:分析不同剂量麻醉药在超高龄患者腰硬联合麻醉中的应用效果。方法:选取2019年6月—2020年8月于青岛市第三人民医院行腰硬联合麻醉手术的患者96例作为研究对象,采用随机数字表法分为观察组和对照组,各48例。观察组给予麻醉药2.0 mL,对照组给予麻醉药1.5 mL。比较两组麻醉效果、血流动力学指标、疼痛情况、不良反应发生情况。结果:观察组完全阻滞时间、麻醉起效时间早于对照组,差异有统计学意义(P0.05);手术切皮时、手术完成时、术后1 h,两组DBP、SBP、HR高于麻醉前,但观察组低于对照组,差异有统计学意义(P0.05)。结论:相较于低剂量麻醉药,高剂量麻醉药在超高龄患者腰硬联合麻醉中的应用效果更好,有助于提高麻醉效果,保持患者术中生命体征平稳,且安全性较好。

关键词：超高龄腰硬联合麻醉麻醉药剂量

Advancing pediatric care before birth

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Frontiers of Medicine 2023年第2期17卷 352-354页

作者： Kun Sun Mark Walker Yongjun Zhang Tao Duan luming Sun Jun Zhang Department of Pediatric Cardiology Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China Department of Obstetrics and Gynecology University of Ottawa School of MedicineOttawa 999040Canada Department of Neonatology Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China Department of Fetal Medicine Shanghai First Maternity and Infant HospitalTongji UniversityShanghai 201204China Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China

The concept of perinatology was first brought up by *** Saling in the 1970s[1].It bridges between prenatal and postnatal periods and commonly covers from 28 weeks of gestation to 28 days *** formation of perinatology has led to close collaboration between obstetricians and neonatologists for the wellbeing of the mother and *** the close ties,the role of a neonatologist tends to be passive until a baby is born.

关键词： mother pediatric bridges

Passive harmonic mode locking of gain-guided solitons in erbium-doped fiber lasers

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Chinese Science Bulletin 2008年第5期53卷 676-680页

作者： ZHAO luming TANG DingYuan CHENG Tee Hiang TAM Hwa-Yaw LU Chao School of Electrical and Electronic Engineering Nanyang Technological University 639798 Singapore Department of Electrical Engineering Hong Kong Polytechnic University Hong Kong China Department of Electronic and Information Engineering Hong Kong Polytechnic University Hong Kong China

We report the experimental observation of passive harmonic mode locking of gain-guided solitons in erbium-doped fiber lasers either made of purely normal dispersion fibers or operating in the net normal cavity dispersion regime. Harmonic-2 and harmonic-3 mode locking states of the gain-guided solitons with supermode suppression larger than 35 dB have been obtained.

关键词：铒掺杂光纤激光器孤波被动谐波振荡型同步正常色散

Electrical resistivity-temperature characteristics enhancement of insulating cross-linked polyethylene composites by incorporating positive temperature coefficient particles with different Curie temperatures

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High Voltage 2023年第1期8卷 1-11页

作者： Guimin Jiang Yuanxiang Zhou Chenyuan Teng Yunxiao Zhang Xin Huang Lei Xue luming Zhou The Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment Xinjiang UniversityUrumqiChina State Key Laboratory of Power System and Generation Equipment Department of Electrical EngineeringTsinghua UniversityBeijingChina College of Information Engineering Zhejiang University of TechnologyHangzhouChina School of Electronics and Computer Science University of SouthamptonSouthamptonUK

Incorporating positive temperature coefficient(PTC)ceramic particles into polymers provides a prospective alternative solution for suppressing severe electric field distortions caused by negative temperature coefficient(NTC)of electrical resistivity within polymer insulation in high voltage direct current *** effect of the Curie temperature of PTC particles on the inhibition of the NTC effect of cross-linked polyethylene(XLPE)is investigated in this *** temperature coefficient particles with varied Curie temperatures are surface-modified and melt blending with *** modified particles are dispersed on averagely in the *** electrical resistivity,space charge behaviour,and direct current(DC)electrical breakdown strength of the samples are investigated at different temperatures,exploring the effect of the Curie temperature of PTC particles on suppressing the NTC effect of *** is demonstrated that the reduction in Curie temperature can further suppress the NTC effect of XLPE,enhance the DC strength at elevated temperatures,and inhibit the internal space charge *** reduction in the Curie temperatures means that the initiation of the PTC effect advances,exhibiting a higher potential barrier and inhibiting the NTC effect more *** work may give a reference for improving the temperature stability of DC properties for XLPE cable insulation.

关键词： coefficient resistivity insulation

Multi-channel surface acoustic wave device and its application on all-fiber acousto-optic modulation

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Chinese Optics Letters 2010年第1期8卷 107-110页

作者：赵路明赵启大 Institute of Physics Nankai University Institute of Modern Optics Nankai University

The interaction of multi-channel surface acoustic waves （SAWs） and a guided optical wave in fiber is studied, and the corresponding coupled wave equations are derived. A novel two-channel SAW all-fiber acousto-optic... 详细信息

关键词： Acoustic waves Acoustics Acoustoelectric effects Wave equations

儿童上颌第一乳磨牙牙冠增龄性变化的初步研究

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安徽医科大学学报 2024年第6期59卷 1089-1094,1106页

作者：朱绍跃魏路明袁长永刘浩周瑶刘雨苗刘宗响谢妮娜徐州医科大学附属口腔医院(徐州市口腔医院)儿童口腔科徐州221002 徐州医科大学附属口腔医院(徐州市口腔医院)种植中心徐州221002 徐州医科大学口腔医学院徐州221004 徐州医科大学附属口腔医院(徐州市口腔医院)口腔正畸科徐州221002

目的测量不同年龄组儿童上颌第一乳磨牙的解剖参数,评估牙冠增龄性变化。方法回顾性分析评估了154例4~8岁儿童患者308颗上颌第一乳磨牙的锥形束计算机断层扫描(CBCT)图像。用NNT软件分析上颌第一乳磨牙的多个重要指标。结果髓顶厚度H1(... 详细信息

目的测量不同年龄组儿童上颌第一乳磨牙的解剖参数,评估牙冠增龄性变化。方法回顾性分析评估了154例4~8岁儿童患者308颗上颌第一乳磨牙的锥形束计算机断层扫描(CBCT)图像。用NNT软件分析上颌第一乳磨牙的多个重要指标。结果髓顶厚度H1(左侧,P=0.01;右侧,P=0.02)和髓室底厚度H3(左右侧P<0.01)与年龄呈正相关,而髓腔高度H2(左右侧P<0.01)和腭尖的高度D1(左侧P=0.003,右侧P=0.002)与年龄呈负相关。颊尖的高度与年龄无关。4、5岁年龄组与8岁年龄组之间的H1和H3差异有统计学意义(P<0.05),4、5岁年龄组与6、7岁和8岁年龄组之间的H2和D1差异有统计学意义(P<0.05)。结论上颌第一乳磨牙牙冠的年龄相关性变化是临床治疗的重要参考依据,可以通过CBCT数据进行精确测量。

关键词：锥形束计算机断层影像增龄性变化上颌第一乳磨牙髓室