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Photocatalytic decolorization of dispersol dyes

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Journal of Environmental Sciences 1994年第2期6卷 244-251页

作者： you daoxin Dai Shugui(Department of Environmental Scienee, Nankai University, Tianjin 300071, China)Xie Huasheng(Tianjin Environmental Protection Bureau, Tianjin 300191, China)

Dispersol dyes were photodegradated by solar-illuniinated catalysts. The effect of catalysttype, catalyst amount, PH, irradiation time, reaction medium and DO on decolorization efficiencywere discussed in *** dyes decolorized rapidly and decomposed to inorganic carbon finally. Thephotodegradation intermediates were analyzed with UV. IR and GC/MS, which showed that benzenering wns opened and alkylates were *** of dispersol yellow-brown wastewater by solar-illuminated catalyst obtainedsatisfactory results: decolorized 86.7% and COD decreased 48.2%, which means that photocatalytictreatment of color wastewater is practical.

关键词： dye photocatalytic degradation wastewater treatment.

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污水中微量有色物质去除方法的研究

环境化学 1989年第3期8卷 57-62页

作者：戴树桂游道新雷公民南开大学环境科学系

本文介绍了在实验室模拟条件下,臭氧对配制的染料溶液及实际污水色度的去除效果.在溶液pH值、温度、臭氧发生量一定条件下,混合染料溶液经臭氧氧化后,色度去除达98％,实际污水经臭氧处理后,色度去除达77.8％.

关键词：污水染料臭氧氧化法

Anisotropy-free arrayed waveguide gratings on X-cut thin film lithium niobate platform of in-plane anisotropy

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Light(Science & Applications) 2024年第7期13卷 1416-1426页

作者： Junjie Yi Changjian Guo Ziliang Ruan Gengxin Chen Haiqiang Wei Liwang Lu Shengqi Gong Xiaofu Pan Xiaowan Shen Xiaowei Guan daoxin Dai Kangping Zhong Liu Liu State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310058China. Guangdong Provincial Key Laboratory of Optical Information Materials and Technology South China Academy of Advanced OptoelectronicsSouth China Normal UniversityHigher-Education Mega-CenterGuangzhou 510006China. National Center for International Research on Green Optoelectronics South China Normal UniversityGuangzhou 510006China Photonics Research Institute Department of Electrical and Electronic EngineeringThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong(SAR)China. Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Intelligent Optics&Photonics Research CenterJiaxing Research Institute Zhejiang UniversityJiaxing 314000China

Arrayed waveguide grating is a versatile and scalable integrated light dispersion device,which has been widely adopted in various applications,including,optical communications and optical ***,thin-film lithium niobate emerges as a promising photonic integration platform,due to its ability of shrinking largely the size of typical lithium niobate based optical *** would also enable multifunctional photonic integrated chips on a single lithium niobate ***,due to the intrinsic anisotropy of the material,to build an arrayed waveguide grating on X-cut thin-film lithium niobate has never been ***,a universal strategy to design anisotropyfree dispersive components on a uniaxial in-plane anisotropic photonic integration platform is introduced for the first *** leads to the first implementation of arrayed waveguide gratings on X-cut thin-film lithium niobate with various configurations and *** best insertion loss of 2.4 dB and crosstalk of−24.1 dB is obtained for the fabricated arrayed waveguide grating *** of such arrayed waveguide gratings as a wavelength router and in a wavelength-division multiplexed optical transmission system are also demonstrated.

关键词： waveguide arrayed lithium

Ultracompact silicon on-chip polarization controller

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Photonics Research 2024年第2期12卷 183-193页

作者： WEIKE ZHAO YINGYING PENG MINGYU ZHU RUORAN LIU XIAOLONG HU YAOCHENG SHI daoxin DAI State Key Laboratory for Modern Optical Instrumentation Center for Optical&Electromagnetic ResearchCollege of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityZijingang CampusHangzhou 310058China School of Precision Instrument and Optoelectronic Engineering Tianjin UniversityTianjin 300072China Key Laboratory of Optoelectronic Information Science and Technology Ministry of EducationTianjin 300072China Ningbo Research Institute Zhejiang UniversityNingbo 315100China

On-chip polarization controllers are extremely important for various optical *** this paper,a compact and robust silicon-based on-chip polarization controller is proposed and demonstrated by integrating a special polarization converter and phase *** special polarization converter consists of a 1×1 Mach–Zehnder interferometer with two polarization-dependent mode converters at the input/output *** light with an arbitrary state of polarization(SOP)is launched into the chip,the TE_(0)and TM_(0)modes are simultaneously *** polarization extinction ratio(PER)and the phase difference for the TE_(0)∕TM_(0)modes are tuned by controlling the first phase shifter,the polarization converter,and the second phase *** a result,one can reconstruct the light SOP at the output *** fabricated polarization controller,as compact as~150μm×700μm,exhibits an excess loss of less than 1 dB and a record PER range of>54 dB for arbitrary input light beams in the wavelength range of 1530–1620 nm.

关键词： polarization SOP interferometer

“浅视听”时代的“深电影”——论《红毯先生》作为“疯狂”的变体

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当代电影 2024年第4期 32-34,38页

作者：李道新北京大学艺术学院

作为一部“疯狂”变体的喜剧电影,《红毯先生》杂糅着宁浩和刘德华两人之间同中有异甚至矛盾冲突的双重视野、批判诉求与思考方式。在致密的隐喻编码和孤独的情绪解码过程中,始终彰显着人群之间的沟通无能,流露出意义过载、痛苦相随与... 详细信息

作为一部“疯狂”变体的喜剧电影,《红毯先生》杂糅着宁浩和刘德华两人之间同中有异甚至矛盾冲突的双重视野、批判诉求与思考方式。在致密的隐喻编码和孤独的情绪解码过程中,始终彰显着人群之间的沟通无能,流露出意义过载、痛苦相随与荒诞虚空、悲凉结局的价值取向。显然,这是一种无关“优雅”,也跟“爽感”背道而驰,但却直击生存困境与灵魂,因此需要更多理解和支持的“浅视听”时代的“深电影”。当然,也需要在已有的“技术”“理性”基础上,更加大胆地寻求改变,努力抵达喜剧电影的更高目标,真正为“浅视听”时代打开一道“深电影”的大门。

关键词：《红毯先生》 “浅视听” “深电影” 宁浩刘德华

Silicon photonic spectrometer with multiple customized wavelength bands

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Photonics Research 2024年第5期12卷 1016-1023页

作者： LONG ZHANG XIAOLIN YI DAJIAN LIU SHIHAN HONG GAOPENG WANG HENGZHEN CAO YAOCHENG SHI daoxin DAI State Key Laboratory for Modern Optical Instrumentation Center for Optical&Electromagnetic ResearchCollege of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityZjingang CampusHangzhou 310058China Intelligent Optics and Photonics Research Center Jiaxing Research InstituteZhejiang UniversityJiaxing 314000China Ningbo Research Institute Zhejiang UniversityNingbo 315100China

A silicon photonic spectrometer with multiple customized wavelength bands is developed by introducing multiple channels of wideband optical filters based on multimode waveguide gratings(MWGs)for pre-filtering and the corresponding thermally tunable narrowband filter for high *** these multiple customized wavelength bands,the central wavelengths,bandwidths,and resolutions are designed flexibly as desired,so that the system is simplified and the footprint is minimized for several practical applications(e.g.,gas sensing).A customized silicon photonic spectrometer is designed and demonstrated experimentally with four wavelength bands centered around1310 nm,1560 nm,1570 nm,and 1930 nm,which is,to the best of our knowledge,the first on-chip spectrometer available for sensing multiple gas components like HF,CO,H_(2)S,and CO_(2).The spectral resolutions of the four wavelength bands are 0.11 nm,0.08 nm,0.08 nm,and 0.37 nm,*** a customized silicon photonic spectrometer shows great potential for various applications,including gas monitors,wearable biosensors,and portable spectral-domain optical coherence tomography.

关键词： waveguide bands multiple

中华民族现代文明的出场逻辑、存在形态与实践指向

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学习与实践 2024年第4期 13-21页

作者：齐道新闫方洁华东师范大学马克思主义学院

中华民族现代文明是一种立足中国自身、破解文化争辩、演绎未来趋向的主体性文明叙事，在文明的反思与抉择中生成以唯物史观中国逻辑关切现代文明的理论范式。基于不同时空坐标，中华民族现代文明呈现出三种不同存在形态：中国特色社会... 详细信息

中华民族现代文明是一种立足中国自身、破解文化争辩、演绎未来趋向的主体性文明叙事，在文明的反思与抉择中生成以唯物史观中国逻辑关切现代文明的理论范式。基于不同时空坐标，中华民族现代文明呈现出三种不同存在形态：中国特色社会主义文明展现其实然存在形态，中华民族现代文明的建设趋向擘画其应然存在形态，中华民族的主体性复归方式通过弥合应然与实然之间的张力呈现其过程形态。新起点上建设中华民族现代文明，要始终处理好传统与现代、民族与世界、全面与协调的关系，不断推进文明实践的系统谋划与现实展开，开创一种全新现代文明的超越性构建方式。

关键词：中华民族现代文明中国式现代化文化自信文化使命

排污河中“羟基化芳族化合物”和洗涤剂自净规律初探

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环境化学 1986年第2期 11-18页

作者：游道新金朝晖刘英华戴树桂南开大学环境科学系南开大学环境科学系

本文主要介绍研究排污河中有机污染物自净规律的几个问题。对排污河中两种污染物——木质素和洗涤剂的自净规律进行了探讨。绘制了它们的自净曲线、计算了自净百分率、讨论了自净速率方程并且计算了自净速率常数。由相关性计算说明它们... 详细信息

本文主要介绍研究排污河中有机污染物自净规律的几个问题。对排污河中两种污染物——木质素和洗涤剂的自净规律进行了探讨。绘制了它们的自净曲线、计算了自净百分率、讨论了自净速率方程并且计算了自净速率常数。由相关性计算说明它们在排污河中的自净速率基本符合方程式Ci=Coe-KD。

关键词：自净河中有机污染物速率常数速率方程羟基化芳族排放废水排放污水有机物污染

数字金融对农村产业链供应链建设的影响研究--基于三产融合的中介视角

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西部金融 2024年第4期 65-75页

作者：严道鑫新疆财经大学信息管理学院新疆乌鲁木齐830012

促进我国农村产业链供应链现代化是农村高质量发展的必由之路。本文基于2011—2021年我国30个省份的面板数据,通过固定效应模型实证检验了数字金融对农村产业链供应链建设的影响,并探究三产融合在其中的机制作用,研究发现:数字金融对农... 详细信息

促进我国农村产业链供应链现代化是农村高质量发展的必由之路。本文基于2011—2021年我国30个省份的面板数据,通过固定效应模型实证检验了数字金融对农村产业链供应链建设的影响,并探究三产融合在其中的机制作用,研究发现:数字金融对农村产业链供应链建设有着显著的促进作用;三产融合在其中发挥着重要中介作用,数字金融可以通过促进农村三产融合推动农村产业链供应链建设;异质性结果显示,在东部地区数字金融在农村产业链供应链建设方面影响显著,而在中西部地区不显著。说明数字金融影响农村产业链供应链建设仍存在明显的区域差异,要加大对欠发达地区农村产业链供应链建设的支持力度,缩小区域发展差距。

关键词：数字金融农村产业链供应链三产融合