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Horticultural Plant Journal 2018年第3期4卷 103-110页

作者： GU Ran LIU Xiaofeng ZHAO Wensheng YAN Shuangshuang sun linhan WU Binning ZHANG Xiaolan Department of Vegetable Sciences Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable CropsChina Agricultural University

The characterization of flower specific promoter is critical during flower development by cucumber transformation ***(AG)is an organ identity gene that is required for carpel and stamen development in *** promoter and second intron of AG contain multiple regulatory elements that confer proper spatial and temporal *** is an important vegetable with unisexual *** MADS-box 1(CUM1)is the AG homolog in cucumber,belonging to the eu AG lineage along with *** situ hybridization showed that CUM1 was specifically expressed in the stamens and carpels of *** staining indicated that the second intron of CUM1 confers stamen-specific expression,while the promoter of CUM1 drives both stamen-and carpel-specific expression during the early stages of flower development,but is restricted to carpel-and connectivum-specific expression during the late stages of flower ***,a yeast one-hybrid assay demonstrated that two auxin response factors(Cs ARF13 and Cs ARF17)had bound directly to the second intron of *** data suggest that different regulatory circuits operate in AG homologs in plant species with distinct sex types.

关键词： cucumber CUM1 promoter intron in situ hybridization GUS staining yeast one-hybrid

无机材料飞秒激光3D打印技术研究进展(特邀)

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中国激光 2024年第12期51卷 206-226页

作者：侯郑为刘少峰林琳涵李正操孙洪波清华大学材料学院先进材料教育部重点实验室北京100084 清华大学精密仪器系精密测试技术及仪器全国重点实验室北京100084 吉林大学电子科学与工程学院集成光电子学国家重点实验室吉林长春130012

飞秒激光三维(3D)打印具有无掩模、高精度、高分辨率、真三维制造等特点,在复杂微纳3D结构制造上难以替代,基于双光子聚合打印技术,已经在微机电、微纳光电、微纳光子等复杂器件制备上展现出巨大的应用前景。随着共混掺杂技术及新型无... 详细信息

飞秒激光三维(3D)打印具有无掩模、高精度、高分辨率、真三维制造等特点,在复杂微纳3D结构制造上难以替代,基于双光子聚合打印技术,已经在微机电、微纳光电、微纳光子等复杂器件制备上展现出巨大的应用前景。随着共混掺杂技术及新型无机光敏材料的发展,高无机功能材料占比的飞秒激光3D打印为高性能器件制备提供了更多的可能性,极大拓展了微纳3D制造的应用能力。围绕近年来基于无机材料体系的飞秒激光3D打印方法,从无机组分工艺、激光打印能力、无机功能材料体系及应用等方面总结现有飞秒激光3D打印微纳器件应用、发展前景及面临的挑战,并展望飞秒激光打印无机3D微纳结构的新材料、新方法、新应用。

关键词：激光技术飞秒激光 3D打印纳米技术无机材料功能材料

基于拉丁超立方抽样的高大模板支撑体系承载力有限元分析

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沈阳建筑大学学报（自然科学版） 2024年第3期40卷 461-469页

作者：陆征然于珈郦路林翰林志浩孙杨沈阳建筑大学土木工程学院辽宁沈阳110168 沈阳建筑大学管理学院辽宁沈阳110168 沈阳建筑大学交通与测绘工程学院辽宁沈阳110168

目的研究不同缺陷构配件下高大模板支撑体系承载性能的变化,为高大模板支撑体系的布置、构配件的搭配及使用提供指导,以预防和减少其在实际工程中的坍塌事故。方法基于拉丁超立方抽样,考虑构配件缺陷对三种搭设参数模板支撑体系承载性... 详细信息

目的研究不同缺陷构配件下高大模板支撑体系承载性能的变化,为高大模板支撑体系的布置、构配件的搭配及使用提供指导,以预防和减少其在实际工程中的坍塌事故。方法基于拉丁超立方抽样,考虑构配件缺陷对三种搭设参数模板支撑体系承载性能的影响,随机取线性屈曲分析中一阶屈曲承载力的0.1%~0.2%作为假想水平力,对构配件性能缺陷进行有限元分析,探究不同搭设参数下支撑体系承载力及失稳模式。结果SPR对承载力的影响大于D和t,并且双因素耦合对承载力的影响大于单因素。立杆步距的变化对支撑体系承载力的影响大于立杆间距。随着影响因素耦合数量的增加,步距对支撑体系承载性能的影响也会随之增大。结论支撑体系搭设过程中将存在缺陷的构配件使用时分散排布,可以防止高大模板支撑体系整体失稳倒塌。

关键词：高大模板支架初始缺陷因素耦合随机有限元承载力

Subsurface reconstruction and saturation of surface bonds

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Science Bulletin 2018年第23期63卷 1570-1575页

作者： linhan Liu Yonghao sun Zhiying Cheng Jing Zhu Rong Yu National Center for Electron Microscopy in Beijing School of Aterials Science and Engineering Key Laboratory of Advanced Materials of Ministry of Education of China State Key Laboratory of New Ceramics and Fine Processing Tsinghua University

Surface reconstructions and stabilization mechanisms have been great challenges for insulators. Based on accurate determination of the long-sought atomic structure of the spinel(1 1 1) surface, here we show that the surface is stabilized by an unconventional mechanism. In general, solid surfaces have unsaturated chemical bonds and are prone to atomic reconstruction to saturate them. The spinel(1 1 1) surface,however, has the surface bonds fully saturated, while the unsaturated bonds remain only in the subsurface. It undergoes a reconstruction that keeps the topmost atomic layer unchanged, but has the subsurface atoms completely rearranged. Such a reconstruction results in a perfect compensation of the surface polarity and a large reduction in the surface energy. This work provides surprising insights into the surface stability and physical and chemical behaviors of complex oxides and insulators.

关键词： Spinel oxides Surface reconstruction Transmission electron microscopy Density functional calculations

Photoswitchable quantum electrodynamics in a hybrid plasmonic quantum emitter

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Chip 2023年第3期2卷 67-74页

作者： Yuan Liu Hongwei Zhou Peng Xue linhan Lin Hong-Bo sun State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China Beijing Computational Science Research Center Beijing 100084China State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China

The design and preparation of quantum states free from environmen-tal decohering effects is critically important for the development of on-chip quantum systems with *** promising strategy is to harness quantum state superposition to construct decoherence-free subspace(DFS),which is termed dark ***,the exci-tation of dark states relies on anti-phase-matching on two qubits and the inter-qubit distance is of wavelength scale,which limits the de-velopment of compact quantum *** the current work,a hybrid plasmonic quantum emitter was proposed,which was composed of strongly correlated quantum emitters intermediated by a plasmonic *** turning the plasmonic loss from drawback into advantage,the anti-phase-matching rule was broken by rapidly de-caying the superposed bright state and preparing a sub-100 nm dark state with decay rate reduced by 3 orders of *** inter-estingly,the dark state could be optically switched to a single-photon emitter with enhanced brightness through photon-blockade,with the quantum second order correlation function at zero delay showing a wide range of tunability down to 0.02.

关键词： Decoherence-free subspace Plasmonics Quantum emitter On-chip quantum systems

Statistics of Galactic Supernova Remnants

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Chinese Journal of Astronomy and Astrophysics 2005年第2期5卷 165-174页

作者： Jian-WenXu Xi-ZhenZhang Jin-linhan NationalAstronomicalObservatories ChineseAcademyofSciencesBeijing100012

We collected the basic parameters of 231 supernova remnants (SNRs) in ourGalaxy, namely, distances (d) from the sun, linear diameters (D), Galactic heights (Z), estimatedages (t), luminosities (L), surface brightness (Σ) and flux densities (S_1) at 1-GHz frequency andspectral indices (α). We tried to find possible correlations between these parameters. As expected,the linear diameters were found to increase with ages for the shell-type remnants, and also to havea tendency to increase with the Galactic heights. Both the surface brightness and luminosity ofSNRs at 1-GHz tend to decrease with the linear diameter and with age. No other relations between theparameters were found.

关键词： methods: statistical (ISM:) supernova remnants

Application of Quicksort Algorithm in Information Retrieval

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Journal on Big Data 2021年第4期3卷 135-145页

作者： Jiajun Xie Zuyan Li Han Wu linhan Li Bin Pan Peng Guo Guang sun Hunan University of Finance and Economics Changsha410205China Changjun Meixihu Middle School Changsha410205China University Malaysia Sabah Kota Kinabalu999004Malaysia

With the development and progress of today’s network information technology,a variety of large-scale network databases have emerged with the situation,such as Baidu Library and Weipu Database,the number of documents in the inventory has reached nearly one *** how do you quickly and effectively retrieve the information you want in such a huge database?This requires finding efficient algorithms to reduce the computational complexity of the computer during Information Retrieval,improve retrieval efficiency,and adapt to the rapid expansion of document *** Quicksort Algorithm gives different weights to each position of the document,and multiplies the weight of each position with the number of matches of that position,and then adds all the multiplied sums to set a feature value for Quicksort,which can achieve the full accuracy of Information ***,the purpose of this paper is to use the quick sort algorithm to increase the speed of Information Retrieval,and to use the position weighting algorithm to improve the matching quality of Information Retrieval,so as to achieve the overall effect of improving the efficiency of Information Retrieval.

关键词： Quicksort Information Retrieval information processing

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316不锈钢抗晶间腐蚀工艺优化的研究

热加工工艺 2009年第16期38卷 38-41,44页

作者：孙兵高林寒李小蕴合肥锻压集团叉车研究所安徽合肥230601 合肥工业大学机械与汽车工程学院安徽合肥230009

分析了冷轧变形量、退火温度和保温时间对316不锈钢抗晶间腐蚀现象的影响,在此基础上确定了316不锈钢抗晶间腐蚀的优化工艺:先固溶处理,再经5%冷轧变形后在1050℃真空退火0.5h。结果表明,不锈钢经新工艺处理后的腐蚀速率降低为原来的1/... 详细信息

分析了冷轧变形量、退火温度和保温时间对316不锈钢抗晶间腐蚀现象的影响,在此基础上确定了316不锈钢抗晶间腐蚀的优化工艺:先固溶处理,再经5%冷轧变形后在1050℃真空退火0.5h。结果表明,不锈钢经新工艺处理后的腐蚀速率降低为原来的1/30,抗晶间腐蚀性能得到了明显提高。

关键词： 316不锈钢晶间腐蚀低Σ重位点阵晶界

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基于双光子聚合的片上光学互连(特邀)

光子学报 2022年第8期51卷 213-223页

作者：赵曜林琳涵孙洪波清华大学精密仪器系精密测试技术及仪器国家重点实验室北京100084

集成光子芯片是将激光光源、低损耗波导、调制器、探测器等多类光电器件结合在一起,实现功能化集成,在高速光通讯、量子信息处理、光学传感等领域有具有重要的应用。然而由于不同的光电器件基于不同材料体系,实现多材料体系的光电器件... 详细信息

集成光子芯片是将激光光源、低损耗波导、调制器、探测器等多类光电器件结合在一起,实现功能化集成,在高速光通讯、量子信息处理、光学传感等领域有具有重要的应用。然而由于不同的光电器件基于不同材料体系,实现多材料体系的光电器件集成极其困难。传统的异质集成和单片集成方法难以同时解决定位精度不足、低拓展性、高损耗、低带宽等一系列问题。基于飞秒激光的双光子聚合技术具有高精度和高穿透的优势,可以实现多材料体系的片上微纳光学元件增材制造,具有极高的加工自由度。本文对片上光学元件的激光增材制造这一领域进行综述,探讨了光子引线键合和微空间光路元件两种技术路径,总结了现有技术的发展现状,并对未来的发展前景进行了展望。

关键词：集成光学增材制造飞秒激光双光子聚合混合集成光子引线键合微空间光路元件

以家庭管理为中心的换药模式在低位单纯性肛瘘切除术后创面愈合中的价值--一项横断面研究

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结直肠肛门外科 2024年第3期30卷 317-321页

作者：张琳菡贾世泽魏凯凯万星阳任东林林宏城刘智敏河南中医药大学第一附属医院肛肠科河南郑州450000 中山大学公共卫生学院广东广州510080 中山大学附属第六医院放射科广东广州510655 中山大学附属第六医院普通外科(肛肠外科) 广东广州510655 广东省结直肠盆底疾病研究重点实验室广东广州510655 广州市黄埔区中六生物医学创新研究院广东广州510655

目的探讨以家庭管理为中心的换药模式在低位单纯性肛瘘切除术后患者创面愈合中的价值。方法纳入2022年6月至2022年12月在中山大学附属第六医院肛肠外科行肛瘘切除术的64例低位单纯性肛瘘患者作为研究对象。入组患者术后在院期间每日常... 详细信息

目的探讨以家庭管理为中心的换药模式在低位单纯性肛瘘切除术后患者创面愈合中的价值。方法纳入2022年6月至2022年12月在中山大学附属第六医院肛肠外科行肛瘘切除术的64例低位单纯性肛瘘患者作为研究对象。入组患者术后在院期间每日常规换药,出院后患者自行选择换药模式。根据患者出院后换药模式,将入组患者分为来院换药组(n=32)、居家换药组(n=32)。通过病历回顾及调查问卷采集患者相关资料,包含3个部分。第1部分为患者的一般情况,包括性别、年龄、文化程度、吸烟史、饮酒史。第2部分为疾病相关情况,包括肛瘘内口位置、病程、创面面积、瘘管类型(括约肌间型、经括约肌型)。第3部分为出院后创面换药情况及术后情况,包括换药模式(居家换药、来院换药)、频率,创面愈合时间,换药及复查相关费用情况,复发情况,术后2周创面疼痛情况,术后2周焦虑情况,以及创面完全愈合后的患者满意度情况。结果两组均无饮酒病例。两组性别、年龄、文化程度、吸烟情况比较差异无统计学意义(P>0.05)。两组肛瘘内口位置、病程、创面面积、瘘管类型比较差异无统计学意义(P>0.05)。居家换药组的换药及复查相关费用更少,视觉模拟疼痛评分更低,差异有统计学意义(P0.05)。结论以家庭管理为中心的换药模式在低位单纯性肛瘘切除术后创面愈合中具有一定的价值,在不影响创面愈合时间的同时,可减少患者经济支出,节约医疗资源,减轻患者的创面疼痛程度。

关键词：低位单纯性肛瘘创面愈合家庭管理换药模式