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High-temperature electrocatalysis and key materials in solid oxide electrolysis cells

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Journal of Energy Chemistry 2021年第3期30卷 736-745页

作者： Lingting Ye Kui xie Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina Key Laboratory of Design&Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina

Solid oxide electrolysis cells(SOECs)can convert electricity to chemicals with high efficiency at ~600-900℃,and have attracted widespread attention in renewable energy conversion and *** operate in the inverse mode of solid oxide fuel cells(SOFCs)and therefore inherit most of the advantages of SOFC materials and energy conversion ***,the external bias that drives the electrochemical process will strongly change the chemical environments in both in the cathode and anode,therefore necessitating careful reconsideration of key materials and electrocatalysis *** importantly,SOECs provide a unique advantage of electrothermal catalysis,especially in converting stable low-carbon alkanes such as methane to ethylene with high ***,we review the state-of-the-art of SOEC research progress in electrothermal catalysis and key materials and provide a future perspective.

关键词： Electrocatalysis Solid oxide electrolysis cell Cathode Anode Electrolyte

高密度“离子氛”全有机凝胶吸附剂的资源化除磷研究

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环境科学学报 2024年第7期44卷 184-200页

作者：谢娜黄禹嘉丰敏胡梦涵余义开江西师范大学化学化工学院南昌330022

水体磷污染控制已成为全球性重要的环保议题,本次研究发现一类全有机骨架凝胶除磷吸附剂(PMASG),通过产生高密度“离子氛”效应,对磷酸根产生全方位包围式静电结合作用,实现对水中磷酸根的高效吸附处理,具有以下应用优势:(1)合成工艺绿... 详细信息

水体磷污染控制已成为全球性重要的环保议题,本次研究发现一类全有机骨架凝胶除磷吸附剂(PMASG),通过产生高密度“离子氛”效应,对磷酸根产生全方位包围式静电结合作用,实现对水中磷酸根的高效吸附处理,具有以下应用优势:(1)合成工艺绿色经济,应用成本低廉;(2)适用于广泛浓度的磷水体,尤其实现了超稀浓度磷(低于0.5 mg·L^(-1))水体中深度提取磷资源;(3)吸附容量较大,对磷酸根的吸附容量值为107.05 mg·g^(-1),优于大部分现有无机类吸附剂;(4)应用时未释放有害物质;(5)吸附磷后废渣,全有机型PMASG可通过热降解消除残留,而被吸附的磷酸根则可以磷矿化转变,以此实现废渣资源化.综合比较,PMASG比现有无机吸附剂拥有更多的应用优势.总之,本次研究基于研发一类经济、绿色、高效及便于资源化的新型除磷吸附剂材料,开拓了全有机骨架吸附剂资源化除磷的重要一步.

关键词：磷污染超稀磷水体资源化除磷全有机吸附剂离子氛效应废渣磷矿化

The development of local ambient air quality standards: A case study of Hainan Province, China

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Eco-Environment & Health 2024年第1期3卷 11-20页

作者： Qian Song Nannan Zhang Yanning Zhang Dejia Yin Jiming Hao Shuxiao Wang Shengyue Li Wenshuai Xu Weijun Yan Xinxin Meng Xinghong Xu Xiaochen Wu Donghai xie Yun Zhu Qipeng Qu Xuan Hou Yueqi Jiang Zhaoxin Dong Haotian Zheng Yisheng Sun Zeqi Li Bin Zhao State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084China Institute of Strategic Planning Chinese Academy of Environmental PlanningBeijing 100041China Hainan Research Academy of Environmental Sciences Haikou 571126China Hainan Provincial Ecological and Environmental Monitoring Center Haikou 570206China Hainan Radiation Environmental Monitoring Station Haikou 571126China Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control College of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006China

The ambient air quality standard(AAQS)is a vital policy instrument for protecting the environment and human *** Province is at the forefront of China's efforts to protect its ecological environment,with an official goal to achieve world-leading air quality by ***,neither the national AAQS nor the World Health Organization guideline offers sufficient guidance for improving air quality in Hainan because Hainan has well met the former while the latter is excessively ***,the establishment of Hainan's local AAQS becomes ***,research regarding the development of local AAQS is scarce,especially in comparatively more polluted countries such as *** relatively high background values and significant interannual fluctuations in air pollutant concentrations in Hainan present challenges in the development of local *** research proposes a world-class local AAQS of Hainan Province by reviewing the AAQS in major countries or regions worldwide,analyzing the influence of different statistical forms,and carefully evaluating the attainability of the *** the proposed AAQS,the annual mean concentration limit for PM2.5,the annual 95th percentile of daily maximum 8-h mean(MDA8)concentration limit for O_(3),and the peak season concentration limit for O_(3) are set at 10,120,and 85μg/m^(3),*** study indicates that,with effective control policies,Hainan is projected to achieve compliance with the new standard by *** implementation of the local AAQS is estimated to avoid 1,526(1,253–1,789)and 259(132–501)premature deaths attributable to longterm exposure to PM2.5 and O_(3) in Hainan in 2035,respectively.

关键词： Local ambient air quality standard Statistical form Feasibility Health effects Hainan province

Fuzzy Modeling of Non-Uniformly Sampling Nonlinear Systems Based on Clustering Method and Convergence Analysis

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Journal of Systems Science & Complexity 2021年第2期34卷 502-519页

作者： WANG Hongwei xie Lirong School of Electrical Engineering Xinjiang UniversityUrumqi 830047China School of Control Science and Control Engineering Dalian University of TechnologyDalian 116024China

The studying motivation of this paper is that there exist many modeling issues of nonuniformly sampling nonlinear systems in industrial *** on multi-model modeling principle,the corresponding model of non-uniformly sampling nonlinear systems is described by the nonlinear weighted combination of some linear models at local working *** modeling based on multimodel scheme is a common method to describe the dynamic process of non-linear *** this paper,the fuzzy modeling method of non-uniformly sampling nonlinear systems is *** premise structure of the fuzzy model is confirmed by GK fuzzy clustering,and the conclusion parameters of the fuzzy model are estimated by the recursive least squared *** convergence perfromance of the proposed identification algorithm is given by using lemmas and martingale ***,the simulation example is given to demonstrate the effectiveness of the proposed method.

关键词： Convergence analysis fuzzy modeling nonlinear systems non-uniformly sampling systems

基于铁死亡探讨中医药干预肾脏疾病作用机制研究进展

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中草药 2024年第18期55卷 6393-6401页

作者：白晶雪雷根平王婷董盛谢炯东陕西中医药大学陕西咸阳712046 陕西中医药大学附属医院陕西咸阳712000

肾脏是维持人体内环境稳态的首要排泄器官,复杂的微环境和精密的调控机制是造成肾脏结构和功能障碍的根本原因。铁死亡是由Fe^(2+)超载、氨基酸代谢失常、脂质过氧化物累积诱发的新型程序性细胞死亡。中医药在治疗肾脏疾病方面有着独特... 详细信息

肾脏是维持人体内环境稳态的首要排泄器官,复杂的微环境和精密的调控机制是造成肾脏结构和功能障碍的根本原因。铁死亡是由Fe^(2+)超载、氨基酸代谢失常、脂质过氧化物累积诱发的新型程序性细胞死亡。中医药在治疗肾脏疾病方面有着独特的理论和丰硕的临床经验,大量研究表明中医药通过调节肾内细胞铁死亡有助于改善肾脏病理损害、延缓肾病病程进展,应用前景广阔。基于铁死亡角度,从机制上探讨中医药干预肾脏疾病病程进展的最新研究成果,为临床防治肾脏疾病提供新的机制参考和思路启发。

关键词：铁死亡急性肾损伤糖尿病肾病肾纤维化肾癌中医药

Review of advanced oxidation processes for treating hospital sewage to achieve decontamination and disinfection

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Chinese Chemical Letters 2024年第1期35卷 140-152页

作者： Si-Ying Yu Zhi-Hui xie Xiaoyu Wu Yun-Zhe Zheng Yang Shi Zhao-Kun Xiong Peng Zhou Yang Liu Chuan-Shu He Zhi-Cheng Pan Kai-Jun Wang Bo Lai State Key Laboratory of Hydraulics and Mountain River Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China Sino-German Centre for Water and Health Research Sichuan UniversityChengdu 610065China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Water Safety and Water Pollution Control Engineering Technology Research Center in Sichuan Province Haitian Water GroupChengdu 610041China

Hospital sewage contains various harmful pharmaceutical contaminants(e.g.,antibiotics,anti-inflammatory agents,and painkillers)and pathogens(e.g.,bacteria,viruses,and parasites),whose direct discharge into the environment will induce diseases and pose a powerful threat to human health and safety,and environmental *** recent years,advanced oxidation processes(AOPs),particularly photocatalysis,electrocatalysis,and ozone catalysis have been developed as widespread and effective techniques for hospital sewage ***,there is a lack of systematic comparison and review of the prior studies on hospital sewage treatment using AOPs *** review elaborates on the mechanisms,removal efficiencies,and advantages/disadvantages of these AOPs systems for hospital wastewater decontamination and ***,some novel and potential technologies such as photo-electrocatalysis,electro-peroxone,Fenton/Fenton-like,and piezoelectric catalysis are also included and ***,we further summarize and compare the capacity of these AOPs to treat the actual hospital wastewater under the impact of the water matrix and pH,and estimate the economic cost of these technologies for practical ***,the future development directions of AOPs for hospital wastewater decontamination and disinfection have been ***,this study provides a comparison and overview of these AOP systems in an attempt to raise extensive concerns about hospital wastewater decontamination and disinfection technologies and guide researchers to discover the future directions of technologies optimization,which would be a crucial step forward in the field of hospital sewage treatment.

关键词： Hospital sewage treatment Advanced oxidation processes Pharmaceutical contaminants Disinfection Decontamination

四川大岗山水库蓄水对2022年泸定M_(S)6.8地震及余震的影响

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地质力学学报 2024年第2期30卷 363-376页

作者：朱家正孙玉军谢志远吴刚广州海洋地质调查局三亚南海地质研究所海南三亚572000 自然资源部深地科学与探测技术实验室北京100037 中国地质科学院北京100037

2022年9月5日四川省泸定县发生M_(S)6.8地震,2023年1月发生MS 5.6余震。该次地震发生在鲜水河断裂南段,位于泸定地震震中东南部70 km的大岗山水库。该水库自建成蓄水后,引起库区北西侧磨西断裂的地震活动性显著变化:2014年11月水库达到... 详细信息

2022年9月5日四川省泸定县发生M_(S)6.8地震,2023年1月发生MS 5.6余震。该次地震发生在鲜水河断裂南段,位于泸定地震震中东南部70 km的大岗山水库。该水库自建成蓄水后,引起库区北西侧磨西断裂的地震活动性显著变化:2014年11月水库达到预定水位之前的3年内,磨西段地震震级较小,多为0~2级微震;11月之后的3年内该区域地震震级和数量明显增加。文章利用高精度DEM数据、精准的地表断裂信息和地层地质信息,建立了三维孔隙弹性有限元数值模型,并根据震源机制解得到断层参数,定量计算了水库水位变化对地层孔隙压力、断层库仑应力的影响。在相关参数约束下的结果表明:水库蓄水造成M_(S)6.8地震震源位置在发震时刻的地层孔隙压力增加5 kPa,库仑应力增加3.6 kPa,对其发生具有一定促进作用。对于MS 5.6正断层型余震,水库蓄水造成其震源位置孔隙压力增加0.32 kPa,库仑应力降低0.69 kPa,对其所处断层面的滑动具有抑制作用。

关键词：泸定地震水库地震库仑应力孔隙压力有限元数值模拟

基于改进深度残差收缩网络的分布式光纤声传感信号识别

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激光与光电子学进展 2024年第5期61卷 152-158页

作者：梁惠康谢浩燊黄红斌刘伟平暨南大学信息科学技术学院电子工程系广东广州510623

提出了基于新阈值函数的深度残差收缩网络(DRSN-NTF),用于解决分布式光纤声传感(DAS)信号噪声强、识别难的问题。DRSN-NTF基于深度残差收缩网络(DRSN),使用新阈值函数代替软阈值函数,使其更能发挥信号噪声处理和分类识别能力。使用DAS... 详细信息

提出了基于新阈值函数的深度残差收缩网络(DRSN-NTF),用于解决分布式光纤声传感(DAS)信号噪声强、识别难的问题。DRSN-NTF基于深度残差收缩网络(DRSN),使用新阈值函数代替软阈值函数,使其更能发挥信号噪声处理和分类识别能力。使用DAS系统采集周界入侵事件的实验数据,并通过添加高斯白噪声的形式,设计了6组不同信噪比(0 dB~5 dB)的实验。对比了4个模型的实验结果,由此考察DRSN-NTF的识别效果。结果发现:在强噪声的情况下,DRSN-NTF取得的平均测试准确率比DRSN高1.05%;随着信噪比的降低,DRSN-NTF的测试准确率高于DRSN的差值增大,表明DRSN-NTF在信号噪声处理和分类识别能力方面更强,能获得相对更高的识别准确率。因此,DRSNNTF更加适用于DAS信号识别。

关键词：光纤光学光纤传感器模式识别深度残差收缩网络新阈值函数周界安防

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非常规油气藏不规则复杂裂缝表征方法

石油实验地质 2024年第4期46卷 748-759页

作者：何佑伟谢义翔乔宇陈玉林汤勇西南石油大学油气藏地质及开发工程全国重点实验室成都610500

非常规油气资源储量大,开发难度高。储层压裂改造是非常规油气资源开发的关键技术手段。天然裂缝和压裂裂缝具有不规则性和复杂性。针对现有裂缝表征方法难以准确刻画裂缝真实形状和宽度变化等不规则特性这一问题,提出了基于非结构PEBI... 详细信息

非常规油气资源储量大,开发难度高。储层压裂改造是非常规油气资源开发的关键技术手段。天然裂缝和压裂裂缝具有不规则性和复杂性。针对现有裂缝表征方法难以准确刻画裂缝真实形状和宽度变化等不规则特性这一问题,提出了基于非结构PEBI网格的不规则复杂裂缝表征方法。首先,建立基于PEBI网格的天然裂缝表征流程,实现对任意区域或限定区域天然裂缝的准确表征;其次,建立基于Delaunay三角形网格和PEBI网格的压裂裂缝表征及优化方法,分析网格尺寸及优化次数对裂缝表征精度的影响;第三,建立基于非结构网格的非平面裂缝表征方法,实现对弯曲裂缝的刻画和表征,裂缝形态和分布与实际情况更相符;第四,提出非均匀裂缝宽度表征方法,实现对变宽度即同一条裂缝宽度和导流能力不均匀分布裂缝的精细表征;第五,在全区域和限定区域内,实现耦合不规则压裂裂缝和不规则天然裂缝的复杂缝网表征。针对大规模天然裂缝与压裂裂缝相交、裂缝宽度非均匀分布、非平面裂缝等复杂条件下的裂缝网络表征,通过调整网格优化次数,能够提高缝网表征质量。利用PEBI网格能够灵活准确逼近裂缝复杂边界条件的优势,实现快速、准确地显示处理大量不规则天然裂缝和压裂裂缝。形成的不规则复杂裂缝表征方法,有助于提高非常规油气藏裂缝网络的表征精度和数值模拟计算准确性。

关键词：非常规油气藏不规则裂缝复杂缝网裂缝表征 Delaunay三角形网格 PEBI网格