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A review on the forward osmosis applications and fouling control strategies for wastewater treatment

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Frontiers of Chemical Science and Engineering 2022年第5期16卷 661-680页

作者： linwei zhu Chun Ding Tengyang zhu Yan Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage(Huazhong University of Science and Technology) Ministry of EducationWuhan 430074China Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China

During the last decades,the utilization of osmotic pressure-driven forward osmosis technology for wastewater treatment has drawn great interest,due to its high separation efficiency,low membrane fouling propensity,high water recovery and relatively low energy *** review paper summarizes the implementation of forward osmosis technology for various wastewater treatment including municipal sewage,landfill leachate,oil/gas exploitation wastewater,textile wastewater,mine wastewater,and radioactive ***,membrane fouling is still a critical issue,which affects water flux stability,membrane life and operating *** membrane fouling types and corresponding fouling mechanisms,including organic fouling,inorganic fouling,biofouling and combined fouling are therefore further *** fouling control strategies including feed pre-treatment,operation condition optimization,membrane selection and modification,membrane cleaning and tailoring the chemistry of draw solution are also reviewed *** the end of paper,some recommendations are proposed.

关键词： forward osmosis wastewater treatment membrane fouling fouling control

Metalens for coaxial double wavelength focusing

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Chinese Optics Letters 2020年第4期18卷 67-70页

作者： Jiannong Chen Baodong Wang linwei zhu Jing Han Qinfeng Xu School of Physics and Opto-Electronics Engineering Ludong UniversityYantai 264025China

We propose a metalens for coaxial double wavelength *** focusing spot is a circular solid spot,and the other focusing spot is a doughnut-shaped spot that is circling the solid *** designed metalens was composed of a met a-molecular nanostructured cell *** meta-molecular nanostructured cell was divided into four *** slots with exactly the same shape,but usually with the rotation angle measured clockwise from the positive x axis,are etched into the gold film in two diagonally connected *** two slots with the same shape but with the rotation angle measured counter-clockwise from the positive x axis are etched into another two diagonally connected squares in the same *** lasers with two different wavelengths are trans?formed into right-handed and left-handed circularly polarized beams,*** two sets of slots with different azimuthal rotations modulated the phases of incident right-handed and left-handed circularly polarized beams *** numerical simulation with finite-difference time-domain(FDTD)software was carried out,and the experimental verification was also *** the experimental result and the numerical simulation agree well with the theoretical design.

关键词： metalens coaxial focusing double wavelengths

Scalable Talbot effect of periodic array objects

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Chinese Optics Letters 2020年第3期18卷 6-10页

作者： Rui Yang Zhenfa Xue Zhiyong Shi Liqiang Zhou linwei zhu School of Physics and Optoelectronic Engineering Ludong UniversityYantai 264025China

A type of scalable self-imaging capable of variable magnification or minification of periodic objects is demonstrated in the focal plane of a lens illuminated by a point *** theory and the experimental results show that the self-imaging phenomenon can also be realized in the focal plane of a lens regardless of whether the distances satisfy the lens formula or *** particular property of this scalable self-imaging effect is that the images in the focal plane can be controlled with different scaling factors only when the distances between the point source and the periodic object satisfy a certain *** discovery should open a new field of diffraction imaging and new application opportunities in precision measurement.

关键词： Talbot effect periodic object diffraction theory lens

Near-perfect fidelity polarization-encoded multilayer optical data storage based on aligned gold nanorods

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Opto-Electronic Advances 2021年第11期4卷 55-63页

作者： linwei zhu Yaoyu Cao Qiuqun Chen Xu Ouyang Yi Xu Zhongliang Hu Jianrong Qiu Xiangping Li School of Physics and Optoelectronic Engineering Ludong UniversityYantai 264025China Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics TechnologyJinan UniversityGuangzhou 510632China State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication MaterialsSouth China University of TechnologyGuangzhou 510640China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China

Encoding information in light polarization is of great importance in facilitating optical data storage(ODS)for information security and data storage capacity ***,despite recent advances in nanophotonic techniques vastly en-hancing the feasibility of applying polarization channels,the data fidelity in reconstructed bits has been constrained by severe crosstalks occurring between varied polarization angles during data recording and reading process,which gravely hindered the utilization of this technique in *** this paper,we demonstrate an ultra-low crosstalk polarization-en-coding multilayer ODS technique for high-fidelity data recording and retrieving by utilizing a nanofibre-based nanocom-posite film involving highly aligned gold nanorods(GNRs).With parallelizing the gold nanorods in the recording medium,the information carrier configuration minimizes miswriting and misreading possibilities for information input and output,respectively,compared with its randomly self-assembled *** enhanced data accuracy has significantly im-proved the bit recall fidelity that is quantified by a correlation coefficient higher than *** is anticipated that the demon-strated technique can facilitate the development of multiplexing ODS for a greener future.

关键词： optical data storage aligned gold nanorods fidelity nanocomposite film

Detour phase Talbot array illuminator

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Chinese Optics Letters 2019年第7期17卷 7-11页

作者： Zhigang Li Rui Yang Meiyu Sun Jing Han Dengying Zhang Jiannong Chen Dawei Zhang linwei zhu School of Physics and Optoelectronic Engineering Ludong UniversityYantai 264025China Engineering Research Center of Optical Instrument and System Ministry of EducationShanghai Key Laboratory of Modern Optical SystemSchool of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China

In this Letter, we propose a simple and effective approach for transforming a conventional Talbot array illuminator(TAI) with multilevel phase steps into a binary-phase TAI(BP-TAI) through detour phase *** BP-TAI is a binary(0 π) phase-only diffractive optical element, which can be utilized to generate a large-scale focal spots array with a high compression *** an example, we design a square BP-TAI with the fraction parameter β= 15 for achieving a square multifocal lattice with a high compression ratio β^*** analysis and experimental results demonstrate that the detour phase encoding is efficient for designing the BP-TAI, especially with the high compression *** results may be exploited in practical large-scale optical trapping and X-ray imaging.

关键词： Detour phase Talbot array illuminator multilevel phase steps

锁定钢板治疗肱骨近端骨折中肱骨颈干角重建对疗效影响的研究

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中国修复重建外科杂志 2015年第6期29卷 672-677页

作者：朱林伟无锡市惠山区人民医院骨科江苏无锡214100

目的探讨锁定钢板治疗肱骨近端骨折中肱骨颈干角重建程度对疗效的影响。方法回顾分析2009年3月-2013年3月,106例采用锁定钢板治疗的肱骨近端骨折患者临床资料。男58例,女48例;年龄26～71岁,平均52.3岁。致伤原因：交通事故伤54例,高... 详细信息

目的探讨锁定钢板治疗肱骨近端骨折中肱骨颈干角重建程度对疗效的影响。方法回顾分析2009年3月-2013年3月,106例采用锁定钢板治疗的肱骨近端骨折患者临床资料。男58例,女48例;年龄26～71岁,平均52.3岁。致伤原因：交通事故伤54例,高处坠落伤23例,摔伤21例,其他伤8例。根据Neer分型标准：二部分骨折32例,三部分骨折65例,四部分骨折9例。受伤至手术时间1～7 d,平均2.7 d。根据术后1～3 d X线片测量的肱骨颈干角,将患者分为3组进行影像学以及临床疗效比较。其中术后肱骨颈干角〉145°为外翻组,126～145°为正常组,〈126°为内翻组。结果根据术后肱骨颈干角分组,外翻组10例,正常组75例,内翻组21例;3组患者一般资料比较,差异均无统计学意义（P〉0.05）。患者术后均获随访,随访时间6～12个月。X线片复查,3组骨折愈合时间比较差异无统计学意义（P〉0.05）。术后6个月正常组肱骨头内翻角、疼痛视觉模拟评分（VAS）显著低于内、外翻组（P〈0.05）。正常组Constant-Murley评分优良率为78.67%（59/75）,显著高于外翻组60.0%（6/10）以及内翻组42.86%（9/21）（P〈0.05）;内、外翻组间比较,差异无统计学意义（P〉0.05）。内翻组并发症发生率为28.57%（6/21）,正常组为10.67%（8/75）,外翻组为20.00%（2/10）,比较差异无统计学意义（χ2=4.31,P=0.12）。结论肱骨近端骨折术中肱骨颈干角正常重建是术后肩关节功能恢复的关键因素。

关键词：肱骨近端骨折肱骨颈干角锁定钢板内固定

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破产企业档案的规范化管理和利用机制探析

档案学通讯 2020年第4期 43-49页

作者：徐阳光朱琳薇中国人民大学法学院北京100872

债务人企业破产程序终结并注销主体资格后,对于企业正常生产经营及破产程序中产生档案的归属及保管问题,尚缺乏明确的指导规范,而该类材料记录了企业"由生到死"的全过程,是宝贵的文献资料,反映了特定时期的经济状况,也是其他企业经营管... 详细信息

债务人企业破产程序终结并注销主体资格后,对于企业正常生产经营及破产程序中产生档案的归属及保管问题,尚缺乏明确的指导规范,而该类材料记录了企业"由生到死"的全过程,是宝贵的文献资料,反映了特定时期的经济状况,也是其他企业经营管理的前车之鉴。破产程序终结后,管理人保管档案的职责终止,鉴于破产企业档案的社会公共价值,国家应承担保管职责,建议由各级档案行政管理部门发挥统筹协调作用,委托第三方档案保管机构保存和管理档案,从档案管理基金支付报酬,由第三方档案保管机构介入破产程序的全过程,发挥独立的指导和监督的作用,并在破产程序终结后全面接收企业破产案件的档案。

关键词：破产企业档案档案所有权档案管理基金档案电子化档案利用

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一种多边形相位波带片的矢量聚焦特性研究

鲁东大学学报（自然科学版） 2022年第1期38卷 62-68页

作者：薛振法朱林伟史强鲁东大学物理与光电工程学院山东烟台264039 北京魔技纳米科技有限公司北京102208

本文基于矢量瑞利-索末菲衍射理论,对一种多边形相位波带片的聚焦特性进行了研究。提出了一种在4Pi聚焦系统中使用不同的多边形相位波带片和不同的偏振光产生特殊聚焦光斑的方法,设计了由不同多边形同心环带组成的相位波带片(圆形、六... 详细信息

本文基于矢量瑞利-索末菲衍射理论,对一种多边形相位波带片的聚焦特性进行了研究。提出了一种在4Pi聚焦系统中使用不同的多边形相位波带片和不同的偏振光产生特殊聚焦光斑的方法,设计了由不同多边形同心环带组成的相位波带片(圆形、六边形、八边形的相位波带片),对不同偏振的光(线偏振光、径向偏振光、角向偏振光)入射到所设计的不同形状的多边形相位波带片产生的聚焦光斑进行了数值模拟。通过数值模拟发现这种多边形相位波带片可以改变入射光聚焦光斑的形状,并且聚焦光斑的周围还存在多个焦点旁瓣的情况。进一步研究发现,在4Pi聚焦系统中可以产生“甜甜圈”状、六边空心“螺母”状、“葫芦”状等特殊形状的三维聚焦光斑。本研究结果有助于加强对矢量聚焦光斑的理解,在光学微操控、激光加工、超分辨成像、数据的高密度存储等领域具有潜在的应用价值。

关键词：矢量光场矢量瑞利-索末菲衍射理论 4Pi聚焦波带片

基于动态交通仿真的高速公路电动汽车充电站规划

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电工技术学报 2018年第13期33卷 2991-3001页

作者：葛少云朱林伟刘洪李腾刘畅天津大学智能电网教育部重点实验室天津300072 中国电力科学研究院北京100192

针对已有研究无法计及路网中车辆出行需求时空动态变化的问题,提出基于动态交通仿真的高速公路电动汽车充电站规划方法。首先,提出了基于路段传播模型LTM的高速公路动态交通仿真方法,实现交通流量时空分布的模拟和充电站电动汽车到达率... 详细信息

针对已有研究无法计及路网中车辆出行需求时空动态变化的问题,提出基于动态交通仿真的高速公路电动汽车充电站规划方法。首先,提出了基于路段传播模型LTM的高速公路动态交通仿真方法,实现交通流量时空分布的模拟和充电站电动汽车到达率的准确分析;其次,利用M/M/S排队论模型求取电动汽车的充电等待时间;再次,以最小化电动汽车日充电等待时间和最小化年建设运维成本为目标,考虑电动汽车充电需求、充电便捷性以及配电网容量等约束,建立了高路公路电动汽车充电站多目标规划模型,并基于多目标粒子群算法和VIKOR理论求解该模型得到最优规划方案;最后,通过环形高速路网验证了所提方法的实用性与有效性。

关键词：充电站多目标规划动态交通仿真 VIKOR方法 M/M/S排队论模型