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Optical interconnection on PCB level using MT compatible connectors and fiber-embedded boards

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Optoelectronics Letters 2006年第6期2卷 452-454页

作者： SHEN guang CAO Ming-cui LUO Feng-guang huang ping huang Qi-rui The Institute of Optoelectronic Engineering and Technology Huazhong University of Science ＆ Technology Wuhan 430074 P. R. China

Optical interconnection between LSIC （Large Scale Integrated circuit） is an increasing demand as data communication is growing very fast, whereas electronic interconnection could hardly satisfy the fastgrowing request of data rate. A realization of on-board optical connection is described in this paper,of which multimode fibers were buried into the RF4 board by cutting grooves on the surface of the board with a LPKF ProtoMat95sll, and two MT connectors were reconstructed to form an input-and-output couple in the board. Optical transmission at 2.5 Gbit/s× 12 channels data rate was demonstrated and a widely opening eye pattern was achieved. Large scale prototype of dense-multimode-fiber-embeddad board for the backplane aoolication was also fabricated by using the methods mentioned in this oaeer.

关键词：光学互联 PCB水平 MT谐调连接器纤维植入板

绿色金融是否提高了地方政府对数字经济的注意力?--基于政策文本分析

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生态经济 2025年第1期41卷 106-113,131页

作者：黄平贵州商学院经济与金融学院贵州贵阳550000

在有限理性决策者的注意力稀缺性理论下,地方政策的变化取决于地方政府注意力的变动。反之,地方政府注意力是否取决于其他相关政策的变化?论文挖掘2019—2021年我国30个省级地方政府政策文本数据,用文本中词频反映地方政府在数字经济倾... 详细信息

在有限理性决策者的注意力稀缺性理论下,地方政策的变化取决于地方政府注意力的变动。反之,地方政府注意力是否取决于其他相关政策的变化?论文挖掘2019—2021年我国30个省级地方政府政策文本数据,用文本中词频反映地方政府在数字经济倾注的“注意力”,并应用fsQCA方法探究绿色金融发展是否引起地方政府向数字经济倾注高注意力。研究结论如下:(1)地方政府对数字经济注意力存在“南强北弱”的区域特征。(2)当绿色投资或绿色支持得到发展时,地方政府通过数字技术的应用帮助监测和评估环保项目的效果,实现环境保护、污染治理,助推地方政府向数字经济投入高注意力。(3)当绿色债券和绿色基金同时发展时,作为融资工具,能够有效帮助实体企业获取资金,助力“双碳”,但受公共物品特征影响,很难被反映在企业利润中。并且,绿色债券和绿色基金所应用到的数字手段有限,较难引起高注意力。(4)当绿色金融各个方面发展较弱时,仅绿色债券、绿色权益所能调动的数字技术是不足的,不会促进地方政府向数字经济投入更高注意力。总之,分析绿色金融是否助推地方政府向数字经济投入注意力,对于探索绿色金融和数字经济协同发展路径具有重要意义。

关键词：绿色金融数字经济注意力 fsQCA方法

A promising approach for quantifying focal stroke modeling and assessing stroke progression:optical resolution photoacoustic microscopy photothrombosis

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Neural Regeneration Research 2025年第7期20卷 2029-2037页

作者： Xiao Liang Xingping Quan Xiaorui Geng Yujing huang Yonghua Zhao Lei Xi Zhen Yuan ping Wang Bin Liu Faculty of Health Sciences University of MacaoMacao Special Administrative RegionChina Center for Cognitive and Brain Sciences University of MacaoMacao Special Administrative RegionChina Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Emergency Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

To investigate the mechanisms underlying the onset and progression of ischemic stroke,some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral ***,these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied,although ischemic stroke is strongly *** this study,we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed *** observed the molding process in mice of different ages and presented age-dependent vascular embolism ***,we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a *** imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages,thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

关键词： age-dependent cerebral cortex ischemic stroke mouse model optical coherence tomography angiography photoacoustic microscopy photothrombosis vascular imaging

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模具钢的激光熔覆组织和性能

四川大学学报（工程科学版） 2001年第5期33卷 69-74页

作者：汤光平黄文荣杨家林中国工程物理研究院机械制造工艺研究所四川绵阳621900

利用不同的激光工艺参数对Cr12 MoV模具钢表面进行熔覆试验 ,探讨了工艺参数对熔覆层深度的影响 ,研究了表面微观硬度的趋势及其原因、熔覆层耐磨性能的提高幅度以及组织结构的变化。结果表明 :表面硬度在不同程度上都得到提高 ,硬度峰... 详细信息

利用不同的激光工艺参数对Cr12 MoV模具钢表面进行熔覆试验 ,探讨了工艺参数对熔覆层深度的影响 ,研究了表面微观硬度的趋势及其原因、熔覆层耐磨性能的提高幅度以及组织结构的变化。结果表明 :表面硬度在不同程度上都得到提高 ,硬度峰值出现在次表层 ;激光熔覆层的耐磨性能可以提高到 1.91～ 4.2 4倍 ;微观结构由平面晶和枝晶构成的共晶组织。

关键词：激光熔覆微观硬度枝晶耐磨性能模具钢组织性能平面晶

Numerical study on DPM dispersion and distribution in an underground development face based on dynamic mesh

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International Journal of Mining Science and Technology 2020年第4期30卷 471-475页

作者： ping Chang guang Xu Jinxin huang WA School of Mines MineralsEnergy and Chemical EngineeringCurtin UniversityKalgoorlieWA 6430Australia Department of Mining Engineering Missouri University of Science and TechnologyRollaMO 65409USA

In 2012,the International Agency for Research on Cancer(IARC)classified diesel particulate matter(DPM)as a carcinogen to *** the increased usage of diesel equipment in underground mines,miners have a high risk of over-exposure to DPM,which has drawn many concerns from the *** study used computational fluid dynamics(CFD)to analyse the DPM dispersion and concentration distribution characteristics in an underground development face based on an onsite *** DPM emitted from a moving loader under a forcing auxiliary ventilation system was *** motion of the load-haul-dump(LHD)in the tunnel was represented by a dynamic mesh *** species transport approach was applied to study the DPM *** DPM concentration zones were then identified based on the simulation *** results could provide guidelines for work practices and be helpful to an optimum auxiliary ventilation design to reduce underground miner exposure.

关键词： Diesel particulate matter Underground mines Ventilation Computational fluid dynamics Dynamic mesh

支持IPv4/IPv6双栈的5G通信网络可靠性组网部署研究

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现代电子技术 2025年第1期48卷 102-106页

作者：黄琳黄劼蒋平湖北师范大学计算机与信息工程学院湖北黄石435002 腾讯科技(深圳)有限公司广州深圳518000 湖北理工学院计算机学院湖北黄石435003

5G网络要求更多的基站部署以支持更高的数据传输速率和连接密度。为实现网络数据的并行高速传输,确保网络应用业务的实时性和稳定性,文中提出一种支持IPv4/IPv6双栈的5G通信网络可靠性组网部署方法。结合IPv4和IPv6双栈,构建双栈转换机... 详细信息

5G网络要求更多的基站部署以支持更高的数据传输速率和连接密度。为实现网络数据的并行高速传输,确保网络应用业务的实时性和稳定性,文中提出一种支持IPv4/IPv6双栈的5G通信网络可靠性组网部署方法。结合IPv4和IPv6双栈,构建双栈转换机制结合有限双协议栈模型,在模型下构建5G通信网络结构,并通过高架立体交叉网优化IPv4/IPv6双栈的5G通信网络组网结构,提升IPv4/IPv6双栈5G通信网络的通信速度。采用冗余路径算法,实现5G网络IPv4/IPv6双栈通信中的服务功能链编排,解决IPv4/IPv6双栈通信中的冗余问题。实验结果表明,该方法能够构建一种更稳定、更高效的5G通信网络组网结构,提高了网络频谱效率,优化了网络环境。

关键词： 5G通信网络 IPv4/IPv6双栈可靠性组网部署服务功能链冗余路径算法有限双协议栈模型

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垦殖对桂林会仙喀斯特湿地土壤养分与微生物活性的影响

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环境科学 2018年第4期39卷 1813-1823页

作者：黄科朝沈育伊徐广平黄玉清张德楠孙英杰李艳琼何文周龙武广西壮族自治区中国科学院广西植物研究所广西喀斯特植物保育与恢复生态学重点实验室桂林541006 广西壮族自治区中国科学院广西植物研究所广西植物功能物质研究与利用重点实验室桂林541006

选择桂林会仙喀斯特湿地不同垦殖方式的土壤为研究对象,通过研究原生沼泽湿地及其开垦21 a的水田和旱地0~40cm不同深度的土壤理化性质、微生物数量、酶活性、微生物呼吸等变化趋势,以揭示垦殖对会仙喀斯特湿地土壤质量的影响.结果表明:... 详细信息

选择桂林会仙喀斯特湿地不同垦殖方式的土壤为研究对象,通过研究原生沼泽湿地及其开垦21 a的水田和旱地0~40cm不同深度的土壤理化性质、微生物数量、酶活性、微生物呼吸等变化趋势,以揭示垦殖对会仙喀斯特湿地土壤质量的影响.结果表明:(1)垦殖导致会仙喀斯特湿地土壤呈现偏酸性和养分含量降低的趋势,垦殖后土壤有机碳(SOC)、全氮(TN)、速效氮(AN)、全磷(TP)、速效磷(AP)、全钾(TK)和速效钾(AK)总体上趋于减小,并且表层土壤减小的趋势最为显著.(2)垦殖改变了土壤微生物数量分布的相对比例关系,水田土壤的细菌和放线菌数量最高,而土壤真菌数量则在旱地最高(P水田>旱地的趋势.qCO_2在0~10 cm和10~20 cm土层表现为湿地>水田>旱地,而在20~30cm和30~40 cm土层则表现为旱地>水田>湿地.综上,垦殖显著降低了土壤的微生物活性,土壤质量呈现下降趋势,对旱地土壤影响较为严重.在会仙喀斯特湿地生态恢复过程中,应减少垦殖旱地和水田的面积,退耕恢复湿地面积.

关键词：垦殖喀斯特湿地微生物活性土壤理化性质土层深度

Deconvolution Method for Determination of the Nitrogen Content in Cellulose Carbamates

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Chinese Chemical Letters 2001年第4期12卷 365-368页

作者： guang Mei CHEN Yi ping huang Department of Chemistry Anhui UniversityHefei 230039

Cellulose carbamates (CC) were synthesized with microcrystalline cellulose as raw materials. The Fourier transform infrared spectra of CC with different nitrogen content were recorded. The accurate results of the nitrogen content for CC can be obtained by using the deconvolution method when the nitrogen content is less than 3.5%. The relationship between the nitrogen content and the absorption intensity ratio of the corresponding separated absorption peaks in FTIR spectra has been expressed bg an equation precisely.

关键词： Cellulose carbamates nitrogen content deconvolution method baseline method

Progress in physical properties of Chinese stock markets

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Frontiers of physics 2013年第4期8卷 438-450页

作者： Yuan Liang guang Yang Ji-ping huang Department of Physics and State Key Laboratory of Surface Physics Fudan University Shanghai 200433 China Department of Applied Physics College of Science Donghua University Shanghai 201620 China

In the past two decades, statistical physics was brought into the field of finance, applying new methods and concepts to financial time series and developing a new interdiscipline ＂econophysics＂. In this review, we introduce several commonly used methods for stock time series in econophysics including distribution functions, correlation functions, detrended fluctuation analysis method, de- trended moving average method, and multifractal analysis. Then based on these methods, we review some statistical properties of Chinese stock markets including scaling behavior, long-term correla- tions, cross-correlations, leverage effects, antileverage effects, and multifractality. Last, based on an agent-based model, we develop a new option pricing model -- financial market model that shows a good agreement with the prices using real Shanghai Index data. This review is helpful for people to understand and research statistical physics of financial markets.

关键词： econophysics Chinese stock market statistical method statistical physics

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