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Acta Geologica Sinica(English Edition) 2024年第2期98卷 416-429页

作者： YANG Zhen FU Yong LI Chao CAI Xi guo chuan College of Eco-Environmental Engineering Guizhou Minzu UniversityGuiyang 550025China College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China Key Laboratory of Karst Georesources and the Environment Ministry of EducationGuizhou UniversityGuiyang 500025China National Research Center for Geoanalysis Chinese Academy of Geological SciencesBeijing 100037China

A polymetallic layer is usually developed at the bottom of the early Cambrian black shale in Guizhou *** mineral that makes up the polymetallic layer is related to the sedimentary *** analyze the differentiation mechanism between polymetallic deposits(Ni-Mo and V),the Zhijin Gezhongwu profile located in the outer shelf and the Sansui Haishan V deposit located in the lower slope are selected to study the in situ sulfur isotopes and trace elements of *** results show that δ^(34)S values of pyrite vary widely from−7.8‰to 28‰in the Gezhongwu profile,while the δ^(34)S values are relatively uniform(from 27.8‰to 38.4‰)in the Haishan *** isotopic S composition is consistent with the transition that occurs in the sedimentary phase from the shelf to the deep sea on the transgressive Yangtze platform;this indicates that the δ^(34)SO_(4)^(2−)values in seawater must be differently distributed in depositional *** sulfur in the Ni-Mo layer is produced after the mixing of seawater and hydrothermal fluid,while the V layer mainly originates from ***,the Ni-Mo and V deposits have been differentiated primarily on the basis of the combined effect of continental weathering and hydrothermal fluid.

关键词： sedimentary environment black shale polymetallic layer pyrite early Cambrian

Displacement-pressure biparametrically regulated softness sensory system for intraocular pressure monitoring

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National Science Review 2024年第6期11卷 159-168页

作者： Yu Cheng Yifei Zhan Fangyi Guan Junli Shi Jingxiao Wang Yi Sun Muhammad Zubair Cunjiang Yu chuan Fei guo Department of Materials Science and Engineering Southern University of Science and Technology Department of Engineering Science and Mechanics Pennsylvania State University Department of Biomedical Engineering Pennsylvania State University Department of Materials Science and Engineering Materials Research Institute Pennsylvania State University

High intraocular pressure(IOP) is one of the high-risk pathogenic factors of glaucoma. Existing methods of IOP measurement are based on the direct interaction with the cornea. Commercial ophthalmic tonometers based on snapshot measurements are expensive, bulky, and their operation requires trained *** contact lenses are easy to use, but they may block vision and cause infection. Here, we report a sensory system for IOP assessment that uses a soft indentor with two asymmetrically deployed iontronic flexible pressure sensors to interact with the eyelid-eyeball in an eye-closed situation. Inspired by human fingertip assessment of softness, the sensory system extracts displacement-pressure information for soft evaluation, achieving high accuracy IOP monitoring(>96%). We further design and custom-make a portable and wearable ophthalmic tonometer based on the sensory system and demonstrate its high efficacy in IOP screening. This sensory system paves a way towards cost-effective, robust, and reliable IOP monitoring.

关键词： intraocular pressure tonometer deep learning softness iontronic sensor

Physical and mechanical properties and microstructures of submarine soils in the Yellow Sea

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Deep Underground Science and Engineering 2024年第2期3卷 197-206页

作者： Zhuangcai Tian Yihua Chang Sichao Chen Gengchen Wang Yanhong Hu chuan guo Lei Jia Lei Song Jianhua Yue State Key Laboratory for Geomechanics and Deep Underground Engineering China University of Mining and TechnologyXuzhouChina School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhouChina Research Center for Deep Ocean Science and Underwater Engineering China University of Mining and TechnologyXuzhouChina School of Resources and Geosciences China University of Mining and TechnologyXuzhouChina

In recent years,the exploration of seabed has been intensified,but the submarine soils of silt and sand in the Yellow Sea area have not been well investigated so *** this study,the physical and mechanical properties of silt and sand from the Yellow Sea were measured using a direct shear apparatus and their microstructures were observed using a scanning electron *** test results suggest that the shear strength of silt and sand increases linearly with the increase of normal *** on the direct shear test,the scanning electron microscope was used to observe the section surface of *** is observed that the section surface becomes rough,with many“V”‐shaped *** particles appear on the surface of the silt structure and tend to be *** X‐ray diffraction experiment reveals that the sand and silt have different *** shear strength of sand is slightly greater than that of silt under high stress,which is related to the shape of soil particles and the mineral *** results can be a reference for further study of other soils in the Yellow Sea;meanwhile,they can serve as soil parameters for the stability and durability analyses of offshore infrastructure construction.

关键词： direct shear test microscope physical properties submarine soil Yellow Sea

平台封禁的反不正当竞争法应对——以《反不正当竞争法》的修订为背景

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当代法学 2024年第2期38卷 65-76页

作者：郭传凯山东大学法学院

平台封禁是指数字企业利用技术手段关闭面向特定经营者的应用程序接口,致使特定经营者无法使用平台设施的竞争行为,具体表现为屏蔽软件功能、禁止外部链接直连或接入某项业务等方面。该行为很可能破坏竞争秩序,阻碍数字经济健康发展。... 详细信息

平台封禁是指数字企业利用技术手段关闭面向特定经营者的应用程序接口,致使特定经营者无法使用平台设施的竞争行为,具体表现为屏蔽软件功能、禁止外部链接直连或接入某项业务等方面。该行为很可能破坏竞争秩序,阻碍数字经济健康发展。鉴于反垄断法难以充分回应平台封禁,适用反不正当竞争法规制平台封禁成为维护数字竞争秩序的可行选择。在《反不正当竞争法》修订的背景下,平台封禁应当参照恶意不兼容予以处理。认定平台封禁是否构成恶意不兼容应以“妨碍、破坏其他经营者合法提供的网络产品或者服务正常运行”为主要标准,兼顾“恶意”的主观心态。为应对平台封禁,《反不正当竞争法》的“网络条款”需要修订,执法机制应予以优化,司法裁判需作出相应变革。

关键词：平台封禁恶意不兼容反不正当竞争法互联互通

Investigation on Breakdown Characteristics of Various Surface Terminal Structures for GaN-Based Vertical P-i-N Diodes

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Journal of Applied Mathematics and Physics 2024年第2期12卷 554-568页

作者： Song Shi Guanyu Wang Yingcong Xiang chuan guo Xing Wang Yinlin Pu Huilan Li Zhixian Li School of Optoelectronic Engineering Chongqing University of Posts and Telecommunications Chongqing China

GaN-based vertical P-i-N diode with mesa edge terminal structure due to electric field crowding effect, the breakdown voltage of the device is significantly reduced. This work investigates three terminal structures, including deeply etched, bevel, and stepped-mesas terminal structures, to suppress electric field crowding effects at the device and junction edges. Deeply-etched mesa terminal yields a breakdown voltage of 1205 V, i.e., 89% of the ideal voltage. The bevel-mesa terminal achieves about 89% of the ideal breakdown voltage, while the step-mesa terminal is less effective in mitigating electric field crowding, at about 32% of the ideal voltage. This work can provide an important reference for the design of high-power, high-voltage GaN-based P-i-N power devices, finding a terminal protection structure suitable for GaNPiN diodes to further enhance the breakdown performance of the device and to unleash the full potential of GaN semiconductor materials.

关键词： GaN P-i-N Mesa Edge Terminal Electric Field Crowding

Theory and verification of moiréfringes for x-ray three-phase grating interferometer

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Chinese Physics B 2024年第5期33卷 532-540页

作者：单雨征葛永帅杨君郭大育蔡学宝刘晓珂侯晓文郭金川 Key Laboratory of Optoelectronic Devices and Systems of the Ministry of Education Key Laboratory of Optoelectronic Devices and Systems of the Department of EducationGuangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Research Center for Medical Artificial Intelligence Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Institute of Advanced Science Facilities Shenzhen 518107China Institute of Electronic Paper Displays South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China College of Biophotonics South China Normal UniversityGuangzhou 510631China MinFound Medical Systems Co. Ltd.Hangzhou 310018China

Dual-phase and three-phase grating x-ray interference is a promising new technique for grating-based x-ray differential phase contrast ***-phase grating interferometers have been relatively completely studied and *** this paper,the corresponding imaging fringe formula of the three-phase grating interferometer is *** the same time,the similarities and differences between the three-phase grating interferometer and the dual-phase grating interferometer are investigated and verified,and that the three-phase grating interferometer can produce large-period moiréfringes without using the analyzing grating is demonstrated ***,a simple method of designing three-phase grating and multi-grating imaging systems from geometric optics based on the thin-lens theory of gratings is *** theoretical formulas and experimental results provide optimization tools for designing three-phase grating interferometer systems.

关键词： x-ray phase contrast phase grating moiréfringe

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中国山水画元素在女包设计中的应用研究

中国皮革 2024年第10期53卷 111-115,119页

作者：郭川延安大学西安创新学院陕西西安710100

中国画是我国美术史上最为典型的艺术类型,是我国传统艺术中主要的组成部分,而中国山水画作为中国画三大画科之一,拥有悠久的历史和丰富的文化内涵,具有深厚的文化底蕴。本文基于中国山水画元素在设计领域的应用,针对性地探讨女包设计... 详细信息

中国画是我国美术史上最为典型的艺术类型,是我国传统艺术中主要的组成部分,而中国山水画作为中国画三大画科之一,拥有悠久的历史和丰富的文化内涵,具有深厚的文化底蕴。本文基于中国山水画元素在设计领域的应用,针对性地探讨女包设计中山水画点景、场景、主景等元素的提炼,并以案例分析为主导,论述各类元素在不同载体上的应用方式和表现效果。本文认为,中国山水画元素对于女包的展示效果具有巨大的价值,而女包在现代社会中使用的普遍性,也有利于中国山水画元素的传播,对增强民族文化自信,促进文化发展具有广泛而积极的意义。

关键词：中国山水画设计元素女包设计

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17α-乙炔雌二醇胁迫下零价铁对硝化污泥中抗性基因的影响

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中国环境科学 2024年第1期44卷 548-554页

作者：王丽丽李安婕张传国交通运输部天津水运工程科学研究院水路交通环境保护技术交通行业重点实验室天津300456 北京师范大学环境学院水沙科学教育部重点实验室水环境模拟国家重点实验室北京100875

采用硝化污泥序批式反应器去除17α-乙炔雌二醇(EE2),基于宏基因组测序技术考察了零价铁(ZVI)对硝化污泥去除17α-乙炔雌二醇(EE2)过程中抗生素抗性基因(ARGs)的影响,结合菌群结构分析了其潜在影响机制.结果表明,硝化污泥处理EE2过程中A... 详细信息

采用硝化污泥序批式反应器去除17α-乙炔雌二醇(EE2),基于宏基因组测序技术考察了零价铁(ZVI)对硝化污泥去除17α-乙炔雌二醇(EE2)过程中抗生素抗性基因(ARGs)的影响,结合菌群结构分析了其潜在影响机制.结果表明,硝化污泥处理EE2过程中ARGs丰度提高了724.42TPM(每百万转录本中来自于某基因的转录本数目),但ZVI削减了此过程中的ARGs丰度增长趋势,EE2及ZVI改变了ARGs亚型的分布,但对ARGs类型及亚型种类无明显影响.EE2使得硝化污泥中属于高风险等级(Q1及Q2)的ARGs丰度增加了555.75TPM及151.08TPM,ZVI降低了硝化污泥中的抗性风险.多重耐药是硝化污泥中丰度占比最大的高风险(Q1和Q2等级)ARGs类型,占比高达49.23%.微生物群落是硝化污泥中ARGs的重要驱动因子,鞘脂单胞菌属(Sphingopyxis)等菌属与多种ARGs显著正相关,可能是多种ARGs的共同潜在宿主.

关键词：硝化污泥 17α-乙炔雌二醇(EE2) 抗生素抗性基因(ARGs) 零价铁(ZVI)

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职业教育产教融合质量评价体系构建研究

黑龙江教师发展学院学报 2024年第3期43卷 96-99页

作者：郭传辉泉州幼儿师范高等专科学校福建泉州362000

产教融合是职业教育发展的关键举措,采用科学的评价指标与评价方法是提升与保障产教融合质量的有效途径,能够为我国职业教育的现代化发展提供有力的保障。基于此,结合产教融合质量评价的现实动因、多维价值及基本原则,从评价主体、评价... 详细信息

产教融合是职业教育发展的关键举措,采用科学的评价指标与评价方法是提升与保障产教融合质量的有效途径,能够为我国职业教育的现代化发展提供有力的保障。基于此,结合产教融合质量评价的现实动因、多维价值及基本原则,从评价主体、评价内容、评价标准、评价指标、评价方法及监督等角度出发,提出科学的评价体系构建思路,以期深化产教融合与职业教育的内在联系,助推我国社会主义市场经济繁荣发展。

关键词：职业教育产教融合质量评价体系构建思路

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黔北地区下奥陶统沉积相与层序特征

沉积学报 2024年第3期42卷 892-911页

作者：郭川张维圆付勇夏鹏贵州大学资源与环境工程学院喀斯特地质资源与环境教育部重点实验室贵阳550025 贵州大学贵州喀斯特环境生态系统教育部野外科学观测研究站贵阳550025

【目的】奥陶纪生物大辐射事件(Great Ordovician Biodiversification Event,GOBE)是海洋环境与生物相互作用的结果,通过对该时期碳酸盐台地沉积相和层序的研究可揭示其形成与演化过程及海平面变化历史,并为奥陶纪生物时空分布特征及演... 详细信息

【目的】奥陶纪生物大辐射事件(Great Ordovician Biodiversification Event,GOBE)是海洋环境与生物相互作用的结果,通过对该时期碳酸盐台地沉积相和层序的研究可揭示其形成与演化过程及海平面变化历史,并为奥陶纪生物时空分布特征及演化规律的探讨提供沉积背景和等时地层格架。【方法】在野外露头剖面实测和显微镜下观察的基础上,识别了黔北地区瓢儿田剖面下奥陶统(桐梓组和红花园组)的岩相类型,进一步分析了沉积模式和高频米级沉积旋回及沉积层序,最后探讨了沉积演化过程中的控制因素。【结果和结论】(1)瓢儿田剖面下奥陶统发育10种岩相类型,主要形成于碳酸盐缓坡沉积体系,且桐梓组和红花园组沉积时期分别以非骨架碳酸盐颗粒和骨架碳酸盐颗粒为特征;(2)桐梓组和红花园组主要发育非对称性的开阔海沉积旋回;(3)识别出3个半三级层序(Sq1~Sq4),每个三级层序均为Ⅱ型层序界面(即岩性转换面)所限。其中Sq1~Sq3为完整的三级层序,由海侵体系域(Transgressive Systems Tract,TST)和海退体系域(Regressive Systems Tract,RST)构成,但Sq4仅发育TST;(4)瓢儿田剖面下奥陶统的沉积演化和层序发育主要受不同级次的相对海平面变化和古地理格局的共同控制。其中不同级次相对海平面波动制约着沉积相的垂向演化,古地理格局则控制着沉积相带的空间分布。

关键词：碳酸盐岩缓坡模式沉积旋回沉积层序相对海平面变化古地理格局