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Chinese Physics B 2020年第8期29卷 489-494页

作者： Ling-Xiao Sheng cheng-Ke chen Mei-Yan Jiang Xiao Li Xiao-jun hu College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China

The microstructure and Ge-V photoluminescent properties of diamond particles treated by microwave oxygen plasma are *** results show that in the first 5 min of microwave plasma treatment,graphite and disordered carbon on the surface of the particles are etched away,so that diamond with regular crystal plane,smaller lattice stress,and better crystal quality is exposed,producing a Ge-V photoluminescence(PL)intensity 4 times stronger and PL peak FWHM(full width at half maximum)value of 6.6 nm smaller than the as-deposited *** is observed that the cycles of‘diamond is converted into graphite and disordered carbon,then the graphite and disordered carbon are etched’can occur with the treatment time further *** these cycles,the particle surface alternately appears smooth and rough,corresponding to the strengthening and weakening of Ge-V PL intensity,respectively,while the PL intensity is always stronger than that of the as-deposited *** results suggest that not only graphite but also disordered carbon weakens the Ge-V PL *** study provides a feasible way of enhancing the Ge-V PL properties and effectively controlling the surface morphology of diamond particle.

关键词： diamond particles Ge-V center microwave oxygen plasma treatment PL enhancement

基于LCA碳总排放量的大型工业园区综合能源供应系统多目标优化

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科学技术与工程 2024年第7期24卷 2715-2723页

作者：郭朝泽胡林静王佳琛王睿内蒙古工业大学电力学院呼和浩特010080 中国航天科工集团第六研究院呼和浩特010010

大型工业园区碳集中排放是导致环境恶化的重要原因之一。提出大型工业园区综合能源供应系统模型,包含能源输入、能源转换、能源存储三个模块,通过能源转换降低传统能源使用比例,为园区提供电、热、冷、气4种所需负荷。基于生命周期计算... 详细信息

大型工业园区碳集中排放是导致环境恶化的重要原因之一。提出大型工业园区综合能源供应系统模型,包含能源输入、能源转换、能源存储三个模块,通过能源转换降低传统能源使用比例,为园区提供电、热、冷、气4种所需负荷。基于生命周期计算设备和能源的碳排放量,通过碳捕集技术对既有碳排放进行消纳,并将经济成本、碳排总放量和清洁能源利用率作为目标函数,利用改进的麻雀搜索算法(improved sparrow search algorithm, ISSA)对工业园区综合能源供应系统进行优化配置。算例结果表明,引入储能系统和电转气系统(power to gas, P2G)后,园区能源系统的清洁能源使用比例是之前的3.92倍,单位用电量下碳排放系数降低30.2%,综合单位电价降低0.38元,证明综合能源供应系统在满足园区能源需求的同时也可以降低碳排放量和经济投入。

关键词：综合能源供应碳排放生命周期碳捕集优化配置

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基于FPGA的半导体激光器稳频系统

量子光学学报 2024年第1期30卷 85-94页

作者：张沛王晨曦宋丽军胡裕栋李刚张鹏飞张天才量子光学与光量子器件国家重点实验室、山西大学光电研究所山西太原030006 山西大学极端光学协同创新中心山西太原030006

半导体激光器由于波长覆盖范围大、易调谐、体积小、重量轻、结构简单、功耗低、寿命长等优势,在量子信息、精密测量、光学传感等领域均有广泛应用。由于自由运转的半导体激光器输出频率起伏较大,在应用中需要对其频率进行反馈控制。然... 详细信息

半导体激光器由于波长覆盖范围大、易调谐、体积小、重量轻、结构简单、功耗低、寿命长等优势,在量子信息、精密测量、光学传感等领域均有广泛应用。由于自由运转的半导体激光器输出频率起伏较大,在应用中需要对其频率进行反馈控制。然而传统反馈控制系统存在结构复杂、体积庞大、稳定性差等缺点,因此我们搭建了一套基于FPGA的外腔半导体激光器稳频系统。该系统以铯原子饱和跃迁线为参考频率,以FPGA电路模块代替信号发生器、锁相放大器、PID、示波器等器件,对激光器工作电流施加反馈,成功将激光器的输出频率分别稳定到|6^(2)S_(1/2),F=4→|6^(2)P_(3/2),F=4,5交叉峰和|6^(2)S_(1/2),F=4→|6^(2)P_(3/2),F=5跃迁线对应的频率。80 s内激光器输出频率起伏为3.0(0.3)MHz。该系统简单易用,集成度高,可用于多种锁定系统。

关键词： FPGA 半导体激光器主动稳频反馈控制

Adaptive guidance law design based on characteristic model for reentry vehicles

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Science in China(Series F) 2008年第12期51卷 2005-2021页

作者： YANG junChun hu jun NI MaoLin National Laboratory of Space Intelligent Control Beijing Institute of Control Engineering Beijing 100080 China

In this paper an adaptive guidance law based on the characteristic model is designed to track a reference drag acceleration for reentry vehicles like the Shuttle. The characteristic modeling method of linear constant systems is extended for single-input and single-output （SlSO） linear time-varying systems so that the characteristic model can be established for reentry vehicles. A new nonlinear differential golden-section adaptive control law is presented. When the coefficients belong to a bounded closed convex set and their rate of change meets some constraints, the uniformly asymptotic stability of the nonlinear differential golden-section adaptive control system is proved. The tracking control law, the nonlinear differential golden-section control law, and the revised logical integral control law are integrated to design an adaptive guidance law based on the characteristic model. This guidance law overcomes the disadvantage of the feedback linearization method which needs the precise model. Simulation results show that the proposed method has better performance of tracking the reference drag acceleration than the feedback linearizaUon one.

关键词： characteristic model nonlinear differential golden-section control law logical integral control law adaptiveguidance asymptotic stability reentry vehicles

Optical and Electrical Properties of Triphenylamine Derivatives for Dye-sensitized Solar Cells and Designing of Novel Molecule

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Chemical Research in Chinese Universities 2013年第3期29卷 584-588页

作者： chen jun WANG Ming Key Laboratory of Analytical Chemistry for Living Biosystem State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beo'ing 100190 P R. China

With density functional theory（DFT） method, the optimization of molecular configurations and the calcu- lation of frontier molecular orbitals were achieved for triphenylamine（TPA）-based dye-sensitized solar cell materials at the B3LYP/6-31G（d, p） level. Time-dependent density functional theory（TD-DFT） was applied to calculating the probability of the transition from the ground state to the excited state. And UV-Vis absorption spectra were derived with Franck-Condon approximation. The conjugation length, substitution groups and spatial effects show a slight influence on the dihedral angle of the TPA group. The increase of conjugation length may cause a smaller energy gap as well as a higher highest occupied molecular orbital（HOMO） and a lower lowest unoccupied molecular orbital （LUMO）. The introduction of methoxyl group and TPA group could lower the energy gap while the HOMO and LUMO were elevated in energy.

关键词： Molecular design Time-dependent density functional theory Dye-sensitized solar cell Electronic structure calculation

Small intestinal hemangioma:Endoscopic or surgical intervention? A case report and review of literature

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World Journal of Gastrointestinal Oncology 2018年第12期10卷 516-521页

作者： Ping-Fang hu Han chen Xiao-Hang Wang Wei-jun Wang Ning Su Bin Shi Department of Gastroenterology Changzheng Hospital Second Military Medical University Department of General Surgery Hongkou Branch of Changhai Hospital Second Military Medical University Department of General Surgery Changzheng Hospital Second Military Medical University

BACKGROUND Hemangioma of the small intestine is a rare vascular malformation. Before the advent of capsule endoscopy(CE) and balloon-assisted enteroscopy(BAE), preoperative diagnosis of this disease was extremely *** SUMMARY In this study, we report a 24-year-old female with a large transmural small bowel cavernous hemangioma, which was diagnosed with CE and BAE preoperatively and removed successfully using minimally invasive surgery. Meanwhile, we perform a literature review of the studies about intestinal hemangiomas published after 2000. Literature review revealed that 91.9% of the lesions were diagnosed preoperatively by CE and/or BAE and 45.9% of them were treated endoscopically, which is a marked improvement compared to before 2000. Therefore, CE and BAE are useful modalities for the preoperative diagnosis of hemangiomas in the small intestine. CONCLUSION Endoscopic treatment of intestinal hemangioma is generally prudent and might be suitable for multiple, relatively small lesions.

关键词： Hemangioma Capsule endoscopy Balloonassisted enteroscopy Endoscopic intervention Surgery Case report

布比卡因脂质体腹横肌平面阻滞在腹腔镜妇科手术镇痛中的应用效果观察

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山东医药 2024年第29期64卷 34-38页

作者：陈军张南南张帆沈俊上海交通大学医学院附属第六人民医院麻醉科上海200233 皖西卫生职业学院附属医院麻醉科

目的观察布比卡因脂质体腹横肌平面阻滞(TAPB)在腹腔镜妇科手术中的应用效果。方法选取腹腔镜妇科手术患者120例,采用随机数字表法分为布比卡因脂质体组及对照组各60例。布比卡因脂质体组在手术开始前接受布比卡因脂质体TAPB,对照组接... 详细信息

目的观察布比卡因脂质体腹横肌平面阻滞(TAPB)在腹腔镜妇科手术中的应用效果。方法选取腹腔镜妇科手术患者120例,采用随机数字表法分为布比卡因脂质体组及对照组各60例。布比卡因脂质体组在手术开始前接受布比卡因脂质体TAPB,对照组接受等量罗哌卡因的TAPB。分别于术后6 h(T1)、24 h(T2)、48 h(T3)、60 h(T4)、72 h(T5)采用疼痛数字评价量表(NRS)评分评估术后疼痛情况,记录患者术后72 h内的补救镇痛次数以及镇痛泵按压次数。分别于术前以及术后1、3、7 d抽取患者静脉血,采集血清样本检测血清应激反应指标皮质醇、白细胞介素6(IL-6)及肿瘤坏死因子α(TNF-α)水平。采用40项恢复质量评定量表(QoR-40)评价患者术后24、48、72 h的恢复质量,记录两组术后恶心呕吐(PONV)、尿潴留、瘙痒和切口感染的发生情况。结果两组术后NRS评分均随着时间的推移呈下降趋势,布比卡因脂质体组T2~T4时点NRS评分均低于对照组(P均0.05)。结论布比卡因脂质体TAPB在腹腔镜妇科手术中显示出了良好的长效镇痛效果,可降低术后应激反应、改善术后恢复质量且安全性较高。

关键词：布比卡因脂质体腹横肌平面阻滞腹腔镜妇科手术术后疼痛应激反应

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Analysis of vascular plant resources and diversity in Fanjing Mountain, Guizhou Province

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Dynamic model and simulation of aseismatic system about laser gyro strapdown inertial measure assembly based on MSTMM

亚洲传统医药 2024年第3期 137页

作者： hu chen Guoqing Long Anhua Wang Jingming Jia

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Journal of Systems Engineering and Electronics 2012年第5期23卷 741-751页

作者： Tong Zhang jun Zhang junjie hu College of Automation Northwestern Polytechnical UniversityXi'an 710072E R.China

The precision of the laser gyro used in tactical missiles is poor because of dithering frequency,actuating by vibration,shock and overload in dynamical *** paper introduces the transfer matrix method of the multibody system（MSTMM）,establishes the dynamic model of the laser gyro strapdown inertial measure assembly aseismatic system,and analyzes the precision affected by dithering of the laser gyro and shocking of the tactical *** the dynamic response of the laser gyro strapdown inertial measure assembly aseismatic system is obtained by simulating the multibody system *** simulation result indicates a theoretical idea to design the vibration isolation for the laser gyro strapdown inertial measure assembly.

关键词： transfer matrix method dynamics laser gyro vibration reduction multibody system

Surface force apparatus and its application to research of the surface contact

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Chinese Science Bulletin 1999年第11期44卷 992-995页

作者： Kun Zou Yongsheng Leng Zhijun Li jun chen Yuanzhong hu hui Wang Shizhu Wen Tsing hua Univ State Key Lab Tribol Beijing 100084 Peoples R China N Chinese Univ Technol Coll Architecture Div Mech Beijing 100041 Peoples R China

The surface force apparatus (SFA) plays a key role in research of nano-technology. A new SFA is introduced. With this apparatus, the theories about non-adhesion and adhesion contact were studied. The experiments showe... 详细信息

关键词： surface force apparatus adhesion contact non-adhesion contact.