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Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期7卷 100-111页

作者： Zhi-Qi Zhang Liu Yang Wen luo Vladimir An Jing Li Bao-Dan Liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

关键词： Low temperature activity Monolithic mesh catalysts NH3-SCR SO2 tolerance V2O5-WO3/TiO2

A New Arthropod,Guangweicaris luo,Fu et Hu gen. nov. from the Early Cambrian Guanshan Fauna,Kunming,China

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Acta Geologica Sinica(English Edition) 2007年第1期81卷 1-7页

作者： luo Huilin FU Xiaoping HU Shixue LI Yong HOU Shuguang YOU ting PANG Jiyuan LIU Qi Yunnan Institute of Geological Sciences Kunming Yunnan 650051 Shenzhen Palaeontological Museum Shenzhen Guangdong 518004 Faculty of Earth Science China University of Geosciences Wuhan Hubei 430074

The Guanshan Fauna is a soft-bodied fauna dominated by arthropods （including trilobites, trilobitoides, Tuzoia, Isoxys, and bradorids） in association with priapulids, brachiopods, anomalocaridids, vetulicoliids, sponges, chancellorids, and echinoderms. This paper reports and describes a new arthropod from the yellowish green mudstone at the lower part of the Wulongqing Formation, Canglangpuan Stage, Lower Cambrian in Kunming, Yunnan, China. The stratigraphic and geographic distribution, classification, fossil preservation, life style of this new arthropod and comparisons with other fossil arthropods are also discussed in details. The discovery and research of the non-mineralized arthropod, Guangweicaris luo, Fu et Hu gen. nov. from the Guanshan Fauna adds new members to the taxonomic list and provides new information to the evolution of early arthropods. Furthermore, this study would shed new light into the ＂Cambrian Explosion＂ and the evolution of early life.

关键词： Early Cambrian Wulongqing Formation Guanshan Fauna Arthropods Guangwei,Kunming Yunnan

Enantioselective reductive conjugate alkenylation of α,β-enones with keto alkenyl acetates by nickel catalysis

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Science China Chemistry 2025年第1期68卷 157-162页

作者： Rong-De He Yun-Lei luo Qiu-Quan Pan Qi-Wei Yao Xing-Zhong Shu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University

Reactions involving alkenyl acetates offer cost-effective and environmentally friendly routes for alkene synthesis, yet their asymmetric variant remains elusive. Concurrently, asymmetric conjugate alkenylation predominantly centered on nucleophilic addition using alkenyl–M. This manuscript presents an asymmetric reductive conjugate alkenylation reaction involving alkenyl acetates. The method facilitates the enantioselective addition of keto alkenyl groups to α,β-enones, resulting in the formation of unsaturated diketones—a class of useful structural motifs that are challenging to access otherwise. The use of electron-rich Pyroxy ligand is essential for achieving both high reaction efficiency and enantioselectivity.

关键词： nickel alkenylation asymmetric cross-coupling alkenes

Land Use and Land Cover Change on Slope in Qiandongnan Prefecture of Southwest China

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Journal of Mountain Science 2014年第3期11卷 762-773页

作者： LU Liang GUO luo ZHAO Song-ting College of Life and Environmental Science Minzu University of China Geomatics Centre of Zhejiang Beijing Institute of Landscape Architecture

This study uses DEM （Digital Elevation Model） data and remote sensing maps of the study area in 1993, 1999, and 2009 to analyze the slope gradient change of land use patterns in Qiandongnan Prefecture, Guizhou province, China. The land use data were classified into five types, forest, farmland, grassland, water and built-up, the slope gradients were divided into four grades. Indices for analyzing land use features were defined by their proportions, transformation matrixes, land use degree and changes The results showed that all land use types can be found at every gradient. Generally, with the slope degree increased, the area of forest being augmented as well, while the area of the other land use types （farmland, grassland and build-up） declined. Moreover, a mass of farmland were shifted from other land use types from o° to 25°, while a quantity of forest were transformed from the other land use types on 〉 25° from 2993 to 2009. In terms of land use degree and changes, the area of farmland and buildup land use types decreased when slope degree increased. Finally, we calculated the five landscape pattern metrics： Patch Density （PD） value, Largest Patch Index （LPI）, Shannon＇s Diversity Index （SHDI）, Area-Weighted Mean Shape Index （AWMSI） and Contagion Index （CONTAG）. The results of metricsanalysis showed that PD values, SHDI values and CONTA values had a similar variation trend, that is, they decreased when slope degree increased. There was no obvious variation trend on LPI value.

关键词： Land use Land cover change Spatialgradient slope Landscape metrics Qiandongnanprefecture

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疲劳评价与食源性抗运动疲劳成分研究进展

食品工业科技 2025年第2期46卷 394-402页

作者：李梦民刘滔罗婷王豆欧昌荣杨桂玲宁波大学食品科学与工程学院省部共建农产品质量安全危害因子与风险防控国家重点实验室浙江省农业科学院农产品质量安全与营养研究所省部共建农产品质量安全危害因子与风险防控国家重点实验室湘湖实验室农业农村部农业转基因生物朔源重点实验室

运动性疲劳会导致机体产生体力匮乏、注意力下降、工作能力降低等现象，而食源性抗运动疲劳活性成分来源广泛并具有显著缓解效果，在功能食品开发、医疗保健应用等领域具备广阔发展前景。本文首先综述了机体内乳酸、糖原、乳酸脱氢酶、... 详细信息

运动性疲劳会导致机体产生体力匮乏、注意力下降、工作能力降低等现象，而食源性抗运动疲劳活性成分来源广泛并具有显著缓解效果，在功能食品开发、医疗保健应用等领域具备广阔发展前景。本文首先综述了机体内乳酸、糖原、乳酸脱氢酶、尿素氮等与运动性疲劳程度紧密相关的评价指标，其次，基于运动性疲劳的主要缓解途径包括提高机体能量储备、清除代谢产物、维持氧化还原平衡、抑制炎症反应、缓解神经中枢疲劳等方式，本文罗列了具有显著抗运动疲劳潜力的食源性活性成分，并总结了不同成分复合缓解疲劳的相互作用，以期为食源性复合抗疲劳功能食品和保健品的开发利用提供理论参考。

关键词：运动性疲劳食源性疲劳指标抗疲劳途径相互作用

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Diagnosis of upper gastrointestinal perforation complicated with fistula formation and subphrenic abscess by contrast-enhanced ultrasound:A case report

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World Journal of Clinical Cases 2021年第29期9卷 8858-8863页

作者： ting-ting Qiu Rong Fu Yan luo Wen-Wu Ling Department of Medical Ultrasound West China Hospital of Sichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Gastrointestinal perforation complicated by subphrenic abscess is a surgical *** diagnosis relies mainly on X-ray or computed tomography(CT),while the value of ultrasound,especially contrast-enhanced ultrasound(CEUS),has been *** SUMMARY A 37-year-old man presented with fever and edema of the lower extremities for 10 *** had a history of laparoscopic repair of gastroduodenal perforation 6 mo *** first-time intravenous CEUS indicated a diagnosis of subphrenic *** received antibiotic therapy and ultrasound-guided percutaneous drainage of the ***,second-time intravenous CEUS revealed an unsatisfactory therapeutic *** CEUS was proposed,and this examination detected communication between the abscess and the *** gastrointestinal perforation complicated by fistula formation and subphrenic abscess was diagnosed with the help of *** CT and esophagogastroduodenoscopy confirmed the *** patient recovered after the perforation was repaired by *** Intravenous and intracavitary CEUS provides helpful information for the diagnosis of upper gastrointestinal perforation complicated by fistula formation and subphrenic abscess.

关键词： Contrast-enhanced ultrasound Gastrointestinal perforation Fistula Abscess Diagnosis Case report

Single-Cell RNA Sequencing Reveals Cell-Type-Specific Mechanisms of Neurological Diseases

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Neuroscience Bulletin 2020年第7期36卷 821-824页

作者： Zhen-Ge luo Jian Peng ting Li School of Life Science and Technology ShanghaiTech UniversityShanghai 200031China Institute of Neuroscience State Key Laboratory of NeuroscienceCenter for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai 200031China University of the Chinese Academy of Sciences Beijing 100049China

Single-cell transcriptomic analysis has provided an unprecedented avenue for the identification of neuronal subtypes that are affected in neurological ***,this strategy is largely hindered by the difficulty of collecting fresh samples of adult human ***,postmortem brain tissue from both normal and diseased human subjects is more accessible.

关键词： difficulty Diseases Type

Bound lipase:an important form of lipase in rice bran (Oryza sativa)

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Food Science and Human Wellness 2023年第5期12卷 1779-1787页

作者： Chengwei Yu Bin Peng ting luo Zeyuan Deng State Key Laboratory of Food Science and Technology Nanchang UniversityNanchang 330047China School of Health Jiangxi Normal UniversityNanchang 330022China Department of Food Science and Technology National University of SingaporeSingapore 117542Singapore National Research and Development Center of Freshwater Fish Processing Jiangxi Normal UniversityNanchang 330022China

Rice bran residue possessed a steady lipase activity((26.68 ± 3.69)%)after its endogenous lipase was extracted continuously by phosphate buffer solution(PBS)for 24 h. T herefore, the aim of this research was to explore whether there exist any bound lipases in rice bran(Oryza sativa). Three physical treatments(grinding, homogenizing and ultrasound crush)and 6 enzymatic treatments(cellulase, hemicellulase, pectinase, complex cellulase, glucoamylase and α-amylase)were applied to rice bran in order to investigate this bound lipase. The relative catalytic activities of extraction supernatant and residue for pectinase group were(437.63 ± 22.54)% and(159.26 ± 2.12)%, respectively, which were significantly higher(P ting their catalytic activities. During combination, pectin could make the lipases more compact and reduce the solvent accessible surface area of lipases, which would make the lipases inactive to molecular interaction. In summary, part of rice bran lipase was proved to exist in bound form and combined with the pectin.

关键词： Rice bran Bound lipase Pectin Catalytic activity

Surface modification of Ti-49.8at%Ni alloy by Ti ion implantation: phase transformation, corrosion, and cell behavior

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International Journal of Minerals,Metallurgy and Materials 2015年第8期22卷 868-875页

作者： Yan Li ting Zhou Peng luo Shuo-gui Xu School of Materials Science and Engineering Beihang University Changhai Hospital Department of Emergency the Second Military Medical University

The Ti-49.8at%Ni alloy was modified by Ti ion implantation to improve its corrosion resistance and biocompatibility. The chemical composition and morphologies of the Ti Ni alloy surface were determined using atomic force microscopy(AFM), auger electron spectroscopy(AES), and X-ray photoelectron spectroscopy(XPS). The results revealed that Ti ion implantation caused the reduction of Ni concentration and the formation of a Ti O2 nano-film on the Ti Ni alloy. The phase transformation temperatures of the Ti–Ti Ni alloy remained almost invariable after Ti ion implantation. Electrochemical tests indicated that the corrosion resistance of Ti Ni increased after Ti ion implantation. Moreover, the Ni ion release rate in 0.9% Na Cl solution for the Ti Ni alloy remarkably decreased due to the barrier effect of the Ti O2 nano-film. The cell proliferation behavior on Ti-implanted Ti Ni was better than that on the untreated Ti Ni after cell culture for 1 d and 3 d.

关键词： titanium–nickel alloys surface modification ion im