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Novel Concept of Cleansing the Liquid Steel by the Fine In-Situ Phase Due to the Composite Ball Explosion Reaction in RH Ladle

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Journal of Iron and Steel Research International 2011年第S2期18卷 153-158页

作者： TANG Fu-ping, LI Zhen, WANG xiao-feng, fei peng, LIN Yang (Anshan Iron and steel group company, Anshan 114000, Liaoning, China) Anshan Iron & Steel Grp Co Anshan 114000 Liaoning Peoples R China

The production of high purity steel is a major task for the iron and steel enterprises in the 21st century. To improve the quality of steel products and produce the cleanness steel, the key technique is to control inclusions in the molten steel. In the present investigation, a novel fine inclusion removal technology due to the dispersed in-situ phase induced by the composite ball explosion reaction was put forward. A composite ball with this function has been designed and the industrial experimental investigation was also carried out. The results indicate that feeding composite ball in RH ladle is a novel technology and the inclusion in the molten steel can be removed effectively. Compared with conventional inclusion removal technology, the number of the oxide inclusion can be decreased to a lower level and the inclusion size becomes much finer. Using this novel technology, the total oxygen in the as-cast slab can approach to 6ppm and the steel production cost for per ton can be reduced by 5 -12 RMB. This novel technology can be achieved without special facility and be realized in most steelmaking plant.

关键词： composite ball fine bubble slag infiltration inclusion removal explosion reaction

Distribution of Heavy Metals in the Sediments in Polluted Coastal Regions of China and Their Ecological Risks

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Meteorological and Environmental Research 2012年第10期3卷 23-26页

作者： SHEN Xu-hong xiao fei-peng xiao Jin-zhong Key Lab of Chinese Academy of Sciences and Coastal Environment in Shandong Province Yantai Institute of Coastal Zone ResearchChinese Academy of Sciences Graduate School of Chinese Academy of Sciences Civil Engineering College of Guangxi University Guangxi Hydraulic Electricity Technology College Shandong Business College

[ Objective] The aim was to study the distribution and its ecological risks of heavy metal in the sediments of the polluted coastal regions in Bohai Bay, Changjiang and Zhujiang estuaries. [Method] The economic activities had great influence on the Bohai Bay, Changjiang and Zhu- jiang estuaries. The pollution of different heavy metals in the deep ocean was summarized by summary of the relation between the distribution of heavy metals and economic activities. [ Result] In general, influenced by economic development, the heavy metal pollution in coastal area in China was pessimistic. The sediments in the Bohai Bay, Changjiang and Zhujiang estuaries showed different degrees of Cd, Cr, Zn, Cu and Pb pollution. As pollution in Bohal Bay and Zhujiang estuaries can not be neglected. The heavy metal pollution may pass into human body with the transportation of food chain. [ Conclusionl The study provided reference for the formulation of policies to restrain heavy metal emission and protection of human health.

关键词： Offshore Sediment Heavy metal Distribution characteristics Ecological risks China

Temporal-Spatial Variability of Soil Organic Carbon Stocks in a Rehabilitating Ecosystem

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Pedosphere 2004年第4期14卷 501-508页

作者： ZHANGShi-Rong SUNBo ZHAOQi-Guo xiaopeng-fei SHUJian-Ying InstituteofSoilScience ChineseAcademyofSciencesNanjing210008（China）. CollegeofResourcesandEnvironment SichuanAgriculturalUniversityYa＇an625014（China）

In global change research, changes of soil organic carbon (SOC) reservoirs intropical and subtropical regions are still unknown. The temporal-spatial variability of SOC stockswas determined in a basin of over 579 km^2 in subtropical China from 1981to 2002. ArcGIS8.l softwarewas utilized for spatial analysis of semivariance, ordinary kriging (OK), and probability kriging(PK). Grid and hierarchical approaches were employed for the sampling scenario in 2002 with 106Global Position System (GPS) established spots sampled. Bulk topsoil samples (0—30 cm) werecollected at three random sites on each spot. The SOC content for 1981 came from the SOC map of theSecond National Soil Survey. Geostatistical results of the nugget to sill ratio (0.215-0.640)in therehabilitating ecosystem indicated a moderate spatial dependence for SOC on this large scale. Therange of SOC changed from 2.04 km in 1981 to 7.15 km in 2002. The mean topsoil SOC increased by 4.6%from 10.63 g kg^(-1) (1981) to 11.12 g kg^(-1)(2002). However, during this 21-year period 25.2% ofthe total basin area experienced a decrease in SOC. Also, the probability kriging results showedthat the geometric mean probabilities of SOC 15.0 gkg^(-1) were 0.188, 0.534 and 0.378, respectively in 2002, comparing to 0.234, 0.416 and 0.234 inthat order in 1981, respectively. The SOC storage in the topsoil increased by 17.0% during this timewith the main increase occurring in forests and cultivated land,which amounted to 82.5% and 17.0%of the total increase, respectively.

关键词： ordinary kriging probability kriging rehabilitating ecosystem soil organiccarbon temporal-spatial variability

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位场向下延拓的波数域广义逆算法

地球物理学报 2007年第6期50卷 1816-1822页

作者：陈生昌肖鹏飞浙江大学地球科学系杭州310027 中石化石油勘探开发研究院南京石油物探研究所南京210014

位场向下延拓是位场数据处理和反演中的重要运算,但是它的不稳定性影响了它在许多处理和反演方法技术中的应用.本文通过把位场向下延拓视为向上延拓的反问题,得到向下延拓的褶积型线性积分方程,再利用Fourier变换矩阵的正交对称特性,并... 详细信息

位场向下延拓是位场数据处理和反演中的重要运算,但是它的不稳定性影响了它在许多处理和反演方法技术中的应用.本文通过把位场向下延拓视为向上延拓的反问题,得到向下延拓的褶积型线性积分方程,再利用Fourier变换矩阵的正交对称特性,并结合矩阵的奇异值分解和广义逆原理,提出了一种稳定的不需要进行求逆运算的位场向下延拓广义逆方法——波数域广义逆算法,解决了位场大深度向下延拓的不稳定性问题.把这种方法用于三维理论模型数据和实际磁场数据的向下延拓获得了理想的结果.

关键词：三维位场向下延拓线性积分方程 Fourier变换矩阵广义逆

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炭材料在过硫酸盐高级氧化技术中的应用进展

新型炭材料 2020年第6期35卷 667-683页

作者：肖鹏飞安璐吴德东东北林业大学林学院黑龙江哈尔滨150040

炭材料凭借其拥有独特的纳米结构、优异的导电性、化学稳定性及吸附特性等在催化领域中显示出广阔的应用前景,有望成为新一代绿色非金属催化剂。近年来,国内外在各类炭材料应用于活化过硫酸盐高级氧化技术中的研究发展极其迅速。不同的... 详细信息

炭材料凭借其拥有独特的纳米结构、优异的导电性、化学稳定性及吸附特性等在催化领域中显示出广阔的应用前景,有望成为新一代绿色非金属催化剂。近年来,国内外在各类炭材料应用于活化过硫酸盐高级氧化技术中的研究发展极其迅速。不同的炭材料具有不同的结构特征和表面性质,其对过硫酸盐的活化机理和对污染物的转化机理也有所不同。到目前为止,各种方法已经被开发并应用于活化过硫酸盐,提高了研究者对各类新型炭材料催化机理的认识。本文对石墨烯、碳纳米管、炭纤维、多孔炭、炭凝胶、炭微球、炭纳米泡、碳量子点等各种新型炭材料作为非均相催化剂或催化剂载体在活化过硫酸盐高级氧化工艺中的理论和应用研究现状进行了总结,并围绕炭材料催化剂的制备方法及结构特性、炭材料催化剂在活化效率中的构效关系、自由基及非自由基产生途径以及在降解环境污染物中的应用效果等方面展开阐述。最后指出了目前炭材料在实际应用中面临稳定性差、环境风险和生产成本高等方面的挑战以及解决方法。

关键词：高级氧化技术过硫酸盐炭材料催化剂活化自由基降解

冻融循环作用下高黏高弹沥青混凝土动力学特征及损伤演化行为

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中国公路学报 2023年第12期36卷 64-76页

作者：肖鑫王嘉宇李进肖飞鹏同济大学交通运输工程学院上海201804 成都大学建筑与土木工程学院四川成都610106

长期冻融循环损伤作用严重影响高黏高弹沥青混凝土服役安全性与耐久性,依据动力学性能研究其冻融损伤特性、损伤机理及发展规律具有重要现实意义。为此,采用宏细观方法从动力学性能衰减角度研究高黏高弹沥青混凝土的冻融循环损伤问题,... 详细信息

长期冻融循环损伤作用严重影响高黏高弹沥青混凝土服役安全性与耐久性,依据动力学性能研究其冻融损伤特性、损伤机理及发展规律具有重要现实意义。为此,采用宏细观方法从动力学性能衰减角度研究高黏高弹沥青混凝土的冻融循环损伤问题,通过室内冻融循环试验、动态力学行为分析、沥青流变和黏附性测试及内部细观结构观察明确了其性能衰减规律和冻融损伤机制,优化了性能评价指标和损伤演变模型。研究结果表明:2S2P1D模型的拟合优度在0.98以上,能够较好地反映冻融循环损伤对动态力学性能的影响规律。沥青硬化效应和沥青-集料交互作用劣化的相互竞争机制使得高黏高弹沥青混凝土冻融损伤表现复杂,但冻融损伤后能够在常见缩减频率[10^(-3) Hz,10^(3) Hz]中频(中温)区交通荷载和气候环境下保持较好的动态力学性能。高黏高弹沥青混凝土动态力学性能在高频(低温)和低频(高温)区表现出“保持-加速-平衡”的冻融损伤趋势,高频(低温)、低频(高温)极限模量比能够反映内部结构冻融损伤特征,据此建立的损伤演变模型能够较准确地反映内部材料结构劣化规律(判定系数R2>0.95)。研究结果可为高黏高弹沥青混凝土抗冻融性能优化设计与服役耐久性验证提供参考。

关键词：路面工程沥青混凝土高黏高弹冻融循环动态模量 2S2P1D模型

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活性炭活化过硫酸钠氧化降解盐酸金霉素的研究

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现代化工 2020年第8期40卷 103-106,112页

作者：安璐肖鹏飞东北林业大学林学院黑龙江哈尔滨150040

以水中盐酸金霉素为目标污染物,研究了活性炭活化过硫酸钠对盐酸金霉素的降解效果及机制。结果表明,活性炭与过硫酸钠联合体系对盐酸金霉素的去除效果要好于活性炭和过硫酸钠的单一体系。活性炭活化过硫酸盐体系的最佳条件为:活性炭投... 详细信息

以水中盐酸金霉素为目标污染物,研究了活性炭活化过硫酸钠对盐酸金霉素的降解效果及机制。结果表明,活性炭与过硫酸钠联合体系对盐酸金霉素的去除效果要好于活性炭和过硫酸钠的单一体系。活性炭活化过硫酸盐体系的最佳条件为:活性炭投加质量为0.2 g、盐酸金霉素与过硫酸钠摩尔比为1∶50、p H为3,该条件下对初始质量浓度为50 mg/L的盐酸金霉素的降解率可达到80%以上。活性炭的重复利用性能较高,3次重复使用后降解率仍保持在60%以上。无机盐离子对体系氧化降解盐酸金霉素有一定的抑制作用。自由基鉴定试验结果表明,·SO4-在整个处理体系中起主要的降解作用。紫外-可见光谱分析发现,盐酸金霉素在分解过程中其苯环结构被破坏。活性炭活化过硫酸盐氧化法可高效去除水中的四环素类抗生素。

关键词：盐酸金霉素活性炭活化过硫酸盐氧化降解硫酸根自由基

Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di Hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Methane Electrochemical conversion Reaction mechanism Catalyst design Electrode Electrocatalysis

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao Xiang Feng Gao Yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states