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Engineering active sites on hierarchical transition bimetal oxyhydride/bicarbonate heterostructure for oxygen evolution catalysis in seawater splitting

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Nano Research 2023年第2期16卷 2094-2101页

作者： Meihong Lin yang yang Yunhua Song Donggang Guo liping yang Lu Liu Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Shanxi Laboratory for Yellow River College of Environment and ResourceShanxi UniversityTaiyuan 030006China

Designing efficient and stable electrocatalysts to improve the oxygen evolution reaction(OER)with slow reaction kinetics is essential to improve hydrogen production from electrochemical water *** research has prepared a series of FeOOH/Ni(HCO_(3))_(2)heterostructured materials(denoted as FeOOH_(x)/Ni(HCO_(3))_(2))by a one-pot solvothermal *** OER performance of the catalysts was maximized by finely tuning the content of different components,heterogeneous interfaces,and electronic ***,the obtained FeOOH0.60/Ni(HCO_(3))_(2)heterostructured nanosheets had the lowest overpotential of 216 mV at a current density of 10 mA·cm^(−2)and were stable at a high current density of 100 mA·cm^(−2)for more than 96 *** excellent OER activity and stability were still maintained in alkaline natural seawater(1 M KOH+seawater).When FeOOH0.60/Ni(HCO_(3))_(2)was used as the anode for water splitting,the electrolyzer provided a current density of 10 mA·cm^(−2)at a very low cell voltage of 1.51 V(1.56 V at 1 M KOH+seawater)and exhibited superior *** outstanding OER performance is ascribed to the synergistic effect of FeOOH and Ni(HCO_(3))_(2)upon heterostructure formation,as well as the altered electronic structure between the heterogeneous interfaces and the suitable hierarchical nanosheet morphology facilitating many active *** work provides a promising direction for improving the electrocatalytic activity of nickel-based catalysts in seawater splitting,which has important implications for both hydrogen economy and environmental remediation.

关键词： synergistic effect heterostructure oxygen evolution reaction iron oxyhydroxide nickel bicarbonate

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铁碳填料耦合生物膜法对生活污水的处理研究

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水处理技术 2025年第1期51卷 90-96,113页

作者：任珺武潮辉杨埴王若安杨莉萍陶玲兰州交通大学环境与市政工程学院甘肃兰州730070 甘肃瀚兴环保科技有限公司甘肃兰州730070 甘肃创恒环保工程有限公司甘肃兰州730070

在700~1000℃的高温下烧结制备了不同种类的铁碳微电解填料,通过静态实验表明,掺杂铝粉的铁碳微电解填料投加到生活污水中有显著的处理效果,NH_(4)^(+)-N、COD和TN分别达到了6.18%、44.18%和6.86%,去除效果优于其他填料。掺杂铝粉的铁... 详细信息

在700~1000℃的高温下烧结制备了不同种类的铁碳微电解填料,通过静态实验表明,掺杂铝粉的铁碳微电解填料投加到生活污水中有显著的处理效果,NH_(4)^(+)-N、COD和TN分别达到了6.18%、44.18%和6.86%,去除效果优于其他填料。掺杂铝粉的铁碳填料在TP的去除率为33.45%,低于掺杂碳酸镁的铁碳微电解填料35.53%的去除率。但是,根据综合处理效果来看,处理生活污水最佳的填料为掺杂铝粉的铁碳微电解填料。将掺杂铝粉的铁碳微电解填料投加到挂膜成功的生物膜反应器中,结果表明,投加铁碳微电解填料的生物膜在NH_(4)^(+)-N、COD、TN和TP的平均出水去除率分别达到了85%、89%、79%和81%。

关键词：生活污水生物膜铁碳微电解填料

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Photocatalytic degradation of carbofuran in TiO_2 aqueous solution: Kinetics using design of experiments and mechanism by HPLC/MS/MS

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Journal of Environmental Sciences 2013年第8期25卷 1680-1686页

作者： Hai yang Shuolin Zhou Huajie Liu Weiwei Yan liping yang Bing Yi College of Chemistry and Chemical Engineering Hunan Institute of Engineering College of Chemistry and Chemical Engineering Hunan Normal University South China Institute of Environmental Sciences Ministry of Environmental Protection

The photocatalytic degradation kinetics of carbofuran was optimized by central composite design based on response surface methodology for the first time. Three variables, TiO2 concentration, initial pH value and the concentration of carbofuran, were selected to determine the dependence of degradation efficiencies on independent variables. Response surface methodology modeling results indicated that the degradation efficiency of carbofuran was highly affected by the initial pH value and the concentration of carbofuran. Then nine degradation intermediates were detected by HPLC/MS/MS. The Frontier Electron Densities of carbofuran were calculated to predict the active sites on carbofuran attacked by hydroxyl radicals and photoholes. Point charges were used to elucidate the chemisorption pattern on TiO2 catalysts during the photocatalytic process. By combining the experimental results and calculation data, the photocatalytic degradation pathways of carbofuran were proposed, including the addition of hydroxyl radicals and the cleavage of the carbamate side chain.

关键词： carbofuran photocatalytic degradation central composite design kinetics mechanism

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Emissions of Biogenic Sulfur Gases(H2S,COS)from Phragmites australis Coastal Marsh in the Yellow River Estuary of China

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Chinese Geographical Science 2016年第6期26卷 770-778页

作者： LI Xinhua ZHU Zhenlin yang liping SUN Zhigao Shandong Institute of Agricultural Sustainable Development Jinan 250100China Institute of Geography Fujian Normal UniversityFuzhou 350007China Key Laboratory of Humid Subtropical Eco-geographical Process Fujian Normal UniversityMinistry of EducationFuzhou 350007China

Emissions of biogenic sulfur gases(hydrogen sulfide(H_2S) and carbonyl sulfide(COS)) from Phragmites australis coastal marsh in the Yellow River estuary of China were determined during April to December in 2014 using static chamber-gas chromatography technique with monthly sampling. The results showed that the fluxes of H_2S and COS both had distinct seasonal and diurnal variations. The H_2S fluxes ranged from 0.09 μg/(m^2·h) to 7.65 μg/(m^2·h), and the COS fluxes ranged from –1.10 μg/(m^2·h) to 3.32 μg/(m^2·h). The mean fluxes of H_2S and COS from the P. australis coastal marsh were 2.28 μg/(m^2·h), and 1.05 μg/(m^2·h), respectively. The P. australis coastal marsh was the emission source of both H_2S and COS over the whole year. Fluxes of H_2S and COS were both higher in plant growing season than in the non-growing season. Temperature had a dramatic effect on the H_2S emission flux, while the correlations between COS flux and the environmental factors were not found during sampling periods. More in-depth and comprehensive research on other related factors, such as vegetation, sediment substrates, and tidal action is needed to discover and further understand the key factors and the release mechanism of sulfur gases.

关键词： biogenic sulfur gases hydrogen sulfide carbonyl sulfide emission flux Phragmites australis coastal marsh the Yellow River estuary

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Integrated Demand Response Characteristics of Industrial Park: A Review

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Journal of Modern Power Systems and Clean Energy 2020年第1期8卷 15-26页

作者： Zhengqi Chen Yingyun Sun Xin Ai Sarmad Majeed Malik liping yang State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijingChina State Grid Economic and Technological Research Institute Co.Ltd. BeijingChina Department of Electrical Engineering National University of Sciences and TechnologyIslamabadPakistan State Grid Beijing Electric Power Company BeijingChina

With the gradual upgradation of global energy consumption and the associated development of multi-energy sources,the pace of unified energy planning and design has been accelerated and the concept of multi-energy system(MES)has been *** industrial structure of industrial park(IP)consists of production and marketing of multi-energy sources,which makes IP become an ideal application scenario for *** coupling between multi-sources raises the complexity level of IP,which requires the demand side analysis in IP as it enables customers to actively participate in energy planning and *** paper presents the concept and operation strategies of integrated demand response(IDR),and its model classification is analyzed in *** model and IDR with varying time period are studied in IP to determine their impacts on the system.A detailed survey of different techniques in both operation strategies and model classification is presented and the classification is based on pros and ***,key issues and outlooks are discussed.

关键词： Industrial park(IP) multi-energy system(MES) integrated demand response(IDR) integrated direct load control(IDLC) demand side management(DSM) demand side comfort index

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Yajieshaba prevents lipopolysaccharide-induced intestinal barrier injury via anti-inflammatory and anti-apoptosis

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Journal of Traditional Chinese Medicine 2022年第5期42卷 707-714页

作者： yang liping YU Xinglin ZHANG Chao CHEN Pu DUAN Xiaohua Yunnan Key Laboratory of Dai and Yi Medicines Yunnan University of Chinese MedicineKunming 650500China

OBJECTIVE: To investigate the protective effect of Yajieshaba(YJSB) on the intestinal barrier dysfunction induced by lipopolysaccharide(LPS).METHODS: C57BL/6 mice and rat intestinal epithelial cells were treated with LPS. Thiazolyl Blue Tetrazolium Bromide assay were used to detect cell viability. DLactate, diamine oxidase and myeloperoxidase and cytokines were determined by enzyme-linked immunosorbent assay. Western blot was used to detect apoptosis-related proteins and tight junction(TJ) proteins. Real-time quantitative polymerase chain reaction was used to quantify the levels of m RNA expression of cytokines. Histological analysis was performed by hematoxylin and eosin staining. An immunofluorescence staining assay was performed to determine the expression level of TJ protein. RESULTS: YJSB increased cell viability and decreased apoptosis, maintained intestinal permeability after LPSinduced. YJSB inhibited LPS-induced decrease of TJ protein expression, pro-inflammatory cytokine levels and neutrophil infiltration. CONCLUSION: YJSB protect against LPS-induced intestinal barrier dysfunction via anti-inflammatory and anti-apoptosis, suggesting its therapeutic potential against intestinal barrier injury-related diseases.

关键词： inflammation apoptosis lipopolysaccharides Yajieshaba intestinal barrier function

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Identification and Molecular Characterization of the Alkaloid Biosynthesis Gene Family in Dendrobium catenatum

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Phyton-International Journal of Experimental Botany 2024年第1期93卷 81-96页

作者： liping yang Xin Wan Runyang Zhou Yingdan Yuan College of Horticulture and Landscape Architecture Yangzhou UniversityYangzhouChina Jiangsu Academy of Forestry NanjingChina Jiangsu yangzhou Urban Forest Ecosystem National Observation and Research Station YangzhouChina

As one of the main active components of Dendrobium catenatum, alkaloids have high medicinal value. The physicochemicalproperties, conserved domains and motifs, phylogenetic analysis, and cis-acting elements of the genefamily members in the alkaloid biosynthesis pathway of D. catenatum were analyzed by bioinformatics, and theexpression of the genes in different years and tissues was analyzed by qRT-PCR. There are 16 gene families,including 25 genes, in the D. catenatum alkaloid biosynthesis pathway. The analysis of conserved domains andmotifs showed that the types, quantities, and orders of domains and motifs were similar among members ofthe same family, but there were significant differences among families. Phylogenetic analysis indicated that thegene family members showed some evolutionary conservation. Cis-acting element analysis revealed that therewere a large number of light-responsive elements and MYB (v-myb avian myeloblastosis viral oncogene homolog)-related elements in these genes. qRT-PCR showed that expressions of gene family members involved in alkaloidsynthesis were different in different years and tissues of D. catenatum. This study provides a theoretical basisfor further exploration of the regulatory mechanisms of these genes in the alkaloid biosynthesis of D. catenatum.

关键词： Dendrobium catenatum gene family alkaloid biosynthesis

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Efficient Digital Twin Placement for Blockchain-Empowered Wireless Computing Power Network

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Computers, Materials & Continua 2024年第7期80卷 587-603页

作者： Wei Wu Liang Yu liping yang Yadong Zhang Peng Wang School of Cybersecurity Northwestern Polytechnical UniversityXi’an710126China

As an open network architecture,Wireless Computing PowerNetworks(WCPN)pose newchallenges for achieving efficient and secure resource management in networks,because of issues such as insecure communication channels and untrusted device ***,as a shared,immutable distributed ledger,provides a secure resource management solution for ***,integrating blockchain into WCPN faces challenges like device heterogeneity,monitoring communication states,and dynamic network *** Digital Twins(DT)can accurately maintain digital models of physical entities through real-time data updates and self-learning,enabling continuous optimization of WCPN,improving synchronization performance,ensuring real-time accuracy,and supporting smooth operation of WCPN *** this paper,we propose a DT for blockchain-empowered WCPN architecture that guarantees real-time data transmission between physical entities and digital *** adopt an enumeration-based optimal placement algorithm(EOPA)and an improved simulated annealing-based near-optimal placement algorithm(ISAPA)to achieve minimum average DT synchronization latency under the constraint of DT *** results show that the proposed solution in this paper outperforms benchmarks in terms of average synchronization latency.

关键词： Wireless computing power network blockchain digital twin placement minimum synchronization latency

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Sedimentary documents and Optically Stimulated Luminescence (OSL) dating for formation of the present landform of the northern Ulan Buh Desert,northern China

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Science China Earth Sciences 2010年第11期53卷 1675-1682页

作者： Fan YuXin Chen FaHu Fan TianLai Zhao Hui yang liping Lanzhou Univ MOE Key Lab Western Chinas Environm Syst Lanzhou 730000 Peoples R China Lanzhou Univ Coll Earth & Environm Sci Lanzhou 730000 Peoples R China Chinese Acad Sci Cold & Arid Reg Environm & Engn Res Inst Lanzhou 730000 Peoples R China

GPR reflecting sections and core profiles revealed that sand dunes of the northern Ulan Buh Desert are overlying shallow lacustrine or palustrine sediments. Optical dating results of sediments from three core profiles indicate that the area of the northern Ulan Buh Desert was still covered by the shallow lake or marsh during 8.4-6.4 ka, and eolian sand started to accumulate since around 2 ka. Such a result supports the idea that the present desert landform of the northern Ulan Buh Desert started to form since 2 ka, which was likely a response to the desertification caused by ruin of the Han Dynasty and the large-scale abandonment of farming of the Han nationality. Our research results are consistent with the previous archaeological studies, and support the idea that the Ulan Buh Desert is composed of two parts with different histories, i.e., the old southern Ulan Buh Desert and the young northern Ulan Buh Desert.

关键词： Ulan Buh Desert landform formation OSL dating

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Functional study of p38 mitogen-activated protein kinase based on cell-penetrating peptide delivery system

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Journal of Geriatric Cardiology 2009年第2期6卷 108-114页

作者： liping yang Yongming Yao Zhiyong Sheng Xiaomei Zhu Yong Jiang Department of Microbiology and Immunology the Burns Institute First Hospital Affiliated to the Chinese PLA GeneralHospital Beijing 100048 P.R. China

Objective p38 Mitogen-activated protein kinase （MAPK） is a crossing center of various pathways. In this study, protein transduction system based on human immunodeficiency virus （HIV）-1 transactivator of transcription （TAT）, which is an efficient delivery peptide of the foreign proteins into cells, was employed to study p38 MAPK functions in eukaryotic cells. Methods p38 And its dominant negative form, p38AF, were constructed into pET-His-TAT vector correctly to verify that the recombinant plasmids were well-founded through restriction enzyme digestion and DNA sequencing. The two proteins, His-TAT-p38 and His-TAT-p38AF, were expressed and purified in Escherichia coli by SDS-PAGE. Then they were incubated with ECV304 cells respectively and readily transduced into cells in a time-dependent and dose-dependent manner. The cells were stimulated by sorbitol. Activating transcription factor （ATF） 2 phosphorylation level was checked using Western blot to assess the activity of endogenous p38. Results Compared with controls, it was found that His-TAT-p38 increased the level ofATF2 phosphorylation in sorbitol-stimulated ECV304 cells, while His-TAT-p38AF inhibited it, indicating p38 MAPK protein delivery system based on TAT was constructed successfully. TAT-p38 and its dominant negative form possessed high biological activity after transduction into ECV304 cells by TAT protein delivery system. The results showed that p38AF fused with TAT could inhibit the transduction of endogenous p38 signal pathway in part, and other pathway might regulate p38 phosphorylation. Conclusions Our study provides a novel pathway to inhibit p38 signal pathway and establish a new method to study p38 function.

关键词： Human immunodeficiency virus-1 transactivator of transcription p38 mitogen-activated protein kinase protein transduction: sorbitol

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