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Co-occurrence of per- and polyfluoroalkyl substances, heavy metals and polycyclic aromatic hydrocarbons and their composite impacts on microbial consortium in soil: A field study

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Pedosphere 2024年第4期34卷 736-748页

作者： Meng ZHANG Qing WANG Xin SONG Mukhtiar ALI Zhiwen TANG Xin LIU Zhuanxia ZHANG Shurong MA jinhui bi Zhongyuan LI Key Laboratory of Saline-Alkali Vegetation Ecology Restoration Northeast Forestry UniversityHarbin 150040China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Center International Group Co. Ltd.Beijing 101160China China Construction Eighth Engineering Division Corp. Ltd.Shanghai 200122China

This is the first study to report the co-occurrence of per-and polyfluoroalkyl substances(PFASs),heavy metals,and polycyclic aromatic hydrocarbons(PAHs)and their impacts on the native microbial consortium in soil due to the long-term *** PFASs,heavy metals,and PAHs were detected in soil samples collected at 2–6 m below the ground surface at different sampling locations in a steel-making *** total concentrations of PFASs varied from 6.55 to 19.79 ng g^(-1),with perfluorooctane sulfonate(PFOS),perfluorobutane sulfonate,and 6:2 chlorinated polyfluorinated ether sulfonate(alternative of PFOS)being the predominant *** concentrations of arsenic,cadmium,and lead were detected in the ranges of 4.40–1270.00,0.01–8.67,and 18.00–647.00 mg kg^(-1),respectively,and the concentration of total PAHs was detected in the range of 1.02–131.60 mg kg^(-1).The long-term exposure to mixed contaminants of PFASs,heavy metals,and PAHs led to lower richness and diversity of microbial communities in *** soil bacterial communities were mainly composed of Pseudomonas,norank_p_GAL15,Leptothrix,norank_o_Rokubacteriales,and *** between soil environmental factors and microbial communities indicated that cation exchange capacity and total phosphorus were two key factors in shaping the composition of native microbial ***,Arthrobacter,Leptothrix,and Sphingobium were found to be significantly positively correlated with PFAS concentrations,indicating that these genera could tolerate the stress exerted by PFASs,along with the stress imposed due to the presence of heavy metals or/and PAHs.

关键词： arsenic cation exchange capacity mixed contaminant native microbial community perfuorooctane sulfonate total phosphorus

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书籍装帧设计的实践探索与思考

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丝网印刷 2023年第13期 76-78页

作者：毕金辉山西工程技术学院

立足于对书籍装帧设计制作实践得出的思考与感悟,分别从书籍装帧设计的功能性、外在与内在的统一和读者的五感体验三个方面进行分析,探索书籍装帧设计的发展方向。

关键词：书籍装帧设计内在与外在功能性五感体验

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Detecting XSS with Random Forest and Multi-Channel Feature Extraction

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Computers, Materials & Continua 2024年第7期80卷 843-874页

作者： Qiurong Qin Yueqin Li Yajie Mi jinhui Shen Kexin Wu Zhenzhao Wang Smart City College Beijing Union UniversityBeijing100101China

In the era of the Internet,widely used web applications have become the target of hacker attacks because they contain a large amount of personal *** these vulnerabilities,stealing private data through crosssite scripting(XSS)attacks is one of the most commonly used attacks by ***,deep learning-based XSS attack detection methods have good application prospects;however,they suffer from problems such as being prone to overfitting,a high false alarm rate,and low *** address these issues,we propose a multi-stage feature extraction and fusion model for XSS detection based on Random Forest feature *** model utilizes RandomForests to capture the intrinsic structure and patterns of the data by extracting leaf node indices as features,which are subsequentlymergedwith the original data features to forma feature setwith richer information *** feature extraction is conducted through three parallel *** I utilizes parallel onedimensional convolutional layers(1Dconvolutional layers)with different convolutional kernel sizes to extract local features at different scales and performmulti-scale feature fusion;Channel II employsmaximum one-dimensional pooling layers(max 1D pooling layers)of various sizes to extract key features from the data;and Channel III extracts global information bi-directionally using a bi-Directional Long-Short TermMemory Network(bi-LSTM)and incorporates a multi-head attention mechanism to enhance global ***,effective classification and prediction of XSS are performed by fusing the features of the three *** test the effectiveness of the model,we conduct experiments on six *** achieve an accuracy of 100%on the UNSW-NB15 dataset and 99.99%on the CICIDS2017 dataset,which is higher than that of the existing models.

关键词： Random forest feature enhancement three-channel parallelism XSS detection

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数字化时代下民族绘本的数字化创新设计及其文化传播

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鞋类工艺与设计 2024年第16期4卷 102-104页

作者：胡锦辉毕玉坤西南民族大学四川成都610000

民族绘本是传承中国民族文化的一种主要形式,也是我国绘本的一个主要内容。新中国建立后,国家对保护、传承和发展少数民族文化给予了高度的关注。在数字社会,资讯科技飞速发展的今天,少数民族儿童读物正迎来新的发展契机和挑战。数字化... 详细信息

民族绘本是传承中国民族文化的一种主要形式,也是我国绘本的一个主要内容。新中国建立后,国家对保护、传承和发展少数民族文化给予了高度的关注。在数字社会,资讯科技飞速发展的今天,少数民族儿童读物正迎来新的发展契机和挑战。数字化时代下,民族绘本应以数字媒体为媒介,将民族文化元素融入数字媒介中进行传播和传承。为了更好地传播民族文化,应加强民族绘本的数字化创新设计,打造有影响力的民族文化品牌,依托新媒体平台进行传播和推广。

关键词：数字化时代民族绘本民族创新设计

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Spectroscopic studies of dye-surfactant interactions with the co-existence of heavy metal ions for foam fractionation

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Journal of Environmental Sciences 2012年第12期24卷 2068-2074页

作者： Dongmei Zhang Guangming Zeng jinhui Huang Wenkai bi Gengxin Xie College of Environmental Science and Engineering Hunan UniversityChangsha 410082China Key Laboratory of Environmental biology and Pollution Control Hunan UniversityMinistry of EducationChangsha 410082China

The interaction between a cationic dye Methylene Blue （MB） and an anionic surfactant sodium dodecyl sulfate （SDS） with the presence of Cd2＋ was investigated spectrophotometrically in a certain concentration range. The spectrophotometric measurements of dye-metal ion-surfactant system were carried out. The results indicated that the SDS concentration had a significant influence on the dye spectrum, while the addition of Cd2~ hardly caused change of the maximum value of absorbance. According to this observation, we concluded that electrostatic and hydrophobic interaction between dye and surfactant occurred up to a certain level, and the homo-ions Cd2＋ almost exerted no effect on the dye-surfactant complexation, establishing a theoretical foundation for simultaneous removal of organic dye and heavy metal using foam fractionation. Meanwhile, the effects of their interaction on foam performance were investigated. The results showed that the addition of Cd2＋ favored the tendency to ameliorate foam properties just contrary to MB. The feasibility of foam separation for dye and heavy metal removal from simulated wastewater was also confirmed using a continuous foam fractionator. In the simultaneous removal process, with the initial SDS concentration ranging from 0.5 to 5.0 retool/L, the maximum removal efticiencies of MB and Cd2＋ were obtained as 99.69% and 99.61%, respectively. The enrichment ratios were reduced from 24.34 to 7.65 for MB and from 22.01 to 3.35 for Cd2＋.

关键词： foam fractionation simultaneous removal spectroscopic study SDS MB Cd2+

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Post quantum secure fair data trading with deterability based on machine learning

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Science China(Information Sciences) 2022年第7期65卷 100-101页

作者： jinhui LIU Yong YU Hongliang bi Yanqi ZHAO Shijia WANG Huanguo ZHANG School of Cybersecurity Northwestern polytechnical University Research & Development Institute of Northwestern Polytechnical University School of Cybersecurity Xi'an University of Posts and Telecommunications School of Statistics and Data Science LPMC & KLMDASR Nankai University School of Cyber Science and Engineering Wuhan University

Dear editor,With the development of the Internet and digitalization,databases and data-analysis tools (for example, artificial intelligence and machine learning) have exhibited a significant potential to improve service quality. Data have become an invaluable asset, which is the basis of new datatraining models [1]. A conventional data-trading ecosystem comprises three parties: seller (data owner), buyer, and data-exchange platform (third party).

关键词： Designated verifier signatures zk-SNARKs Double authentication preventing signatures Lattice Machine learning

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A two-dimensional MoS_(2) array based on artificial neural network learning for high-quality imaging

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Nano Research 2023年第7期16卷 10139-10147页

作者： Long Chen Siyuan Chen Jinchao Wu Luhua Chen Shuai Yang Jian Chu Chengming Jiang Sheng bi jinhui Song School of Mechanical Engineering Dalian University of TechnologyDalian 116024China School of Computer Science Southwest Petroleum UniversityChengdu 610500China

As the basis of machine vision,the biomimetic image sensing devices are the eyes of artificial *** recent years,with the development of two-dimensional(2D)materials,many new optoelectronic devices are developed for their outstanding ***,there are still little sensing arrays based on 2D materials with high imaging quality,due to the poor uniformity of pixels caused by material defects and fabrication ***,we propose a 2D MoS_(2)sensing array based on artificial neural network(ANN)*** equipping the MoS_(2)sensing array with a“brain”(ANN),the imaging quality can be effectively *** the test,the relative standard deviation(RSD)between pixels decreased from about 34.3%to 6.2%and 5.49%after adjustment by the back propagation(BP)and Elman neural networks,*** peak signal to noise ratio(PSNR)and structural similarity(SSIM)of the image are improved by about 2.5 times,which realizes the re-recognition of the distorted *** provides a feasible approach for the application of 2D sensing array by integrating ANN to achieve high quality imaging.

关键词： two-dimensional MoS_(2) sensing array artificial neural network individual difference imaging quality

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STEM理念下人工智能技术与计算机专业教学模式的融合研究

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信息与电脑 2024年第16期36卷 32-34,38页

作者：王雪王晓援曹健毕馨文车进辉北华大学计算机科学技术学院吉林吉林132013 北华大学土木与交通学院吉林吉林132013

随着人工智能等新兴技术与高等教育的深度融合,高校教学改革成了提高人才培养质量的关键。本文结合当前高校计算机专业教学存在的问题,从混合式教学模式、实践教学平台、多元化与智能评价机制等多方面,提出了STEM理念下人工智能技术与... 详细信息

随着人工智能等新兴技术与高等教育的深度融合,高校教学改革成了提高人才培养质量的关键。本文结合当前高校计算机专业教学存在的问题,从混合式教学模式、实践教学平台、多元化与智能评价机制等多方面,提出了STEM理念下人工智能技术与计算机专业教学融合的改革策略,为计算机专业教学改革提供了新思路和借鉴价值。

关键词： STEM理念人工智能混合式教学实践教学多元化与智能评价

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挤压态Mg-0.5bi-0.5Sn-0.5Ag合金的热变形行为、组织和织构演变

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中国有色金属学报 2024年第2期34卷 388-399页

作者：康健伟刘国磊王利飞余晖王金辉程伟丽太原理工大学材料科学与工程学院太原030024 河北工业大学材料科学与工程学院天津300132 青海大学青海省新型轻合金重点实验室西宁810016

本文成功制备了一种新型挤压态低合金化Mg-0.5bi-0.5Sn-0.5Ag合金(BTQ000合金)。在变形温度为400℃、应变速率为10 s^(-1)的条件下,对BTQ000合金进行热压缩实验,研究了该合金在不同应变阶段的变形机制组织和织构演变。结果表明:BTQ000... 详细信息

本文成功制备了一种新型挤压态低合金化Mg-0.5bi-0.5Sn-0.5Ag合金(BTQ000合金)。在变形温度为400℃、应变速率为10 s^(-1)的条件下,对BTQ000合金进行热压缩实验,研究了该合金在不同应变阶段的变形机制组织和织构演变。结果表明:BTQ000合金的流变应力曲线可分为加工硬化、动态回复、稳态流变和额外应变硬化四个阶段。合金发生了明显的回复和动态再结晶,随着应变的增大,平均晶粒粒径先增大后减小,孪晶的面积分数逐渐减小,亚晶的面积分数先增后减。当应变为0.1时,亚晶的最大面积分数为76.2%,亚晶对织构类型和强度起着主导作用,而织构强度则表现出先减后增的趋势。当应变为0.4时,大量具有弥散取向的动态再结晶晶粒减少了织构的峰值强度。由此可见,亚晶和动态再结晶是影响合金织构类型和强度的主导因素。

关键词： Mg-bi基合金热压缩微观组织演变织构变形行为

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构筑功能性bi_(2)O_(3)光催化材料的研究进展

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精细化工 2024年第8期41卷 1665-1678页

作者：林金池邓玉婷朱文韬于秀明杨金辉田追南华大学土木工程学院湖南衡阳421001

随着世界经济的快速发展,出现了严重的能源短缺和环境危机,光催化技术是缓解该问题的有效方案。bi_(2)O_(3)具有独特的层状结构和较窄的禁带宽度、潜在的可见光驱动光催化性能,逐渐成为环境能源科学领域的研究热点之一。该文概述了bi_(2... 详细信息

随着世界经济的快速发展,出现了严重的能源短缺和环境危机,光催化技术是缓解该问题的有效方案。bi_(2)O_(3)具有独特的层状结构和较窄的禁带宽度、潜在的可见光驱动光催化性能,逐渐成为环境能源科学领域的研究热点之一。该文概述了bi_(2)O_(3)光催化材料的制备方法,重点介绍了气相反应法、液相反应法、固相反应法和其他方法的研究现状;总结了bi_(2)O_(3)光催化材料构筑策略、去除成效及主要机理;阐述了bi_(2)O_(3)光催化材料在光催化水环境处理、水分解制氢、固氮脱硫、杀菌消毒、二氧化碳还原、电极与超级电容器领域的应用;最后,提出了bi_(2)O_(3)光催化材料存在的问题,并对其未来发展方向进行了展望。

关键词： bi_(2)O_(3) 制备复合改性作用机理光催化应用

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