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co.(2) co.rosion of X80 steel welded joints under micro-turbulence induced by welding reinforcement height

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Journal of Iron and Steel Research international 2024年第4期31卷 1015-1032页

作者： Xiao-hui Dou Bin Li Zong-hao He Xin-wei Zhang Da-lei Zhang Yan Li School of Materials Science and Engineering China University of Petroleum(East China)Qingdao 266580ShandongChina School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

co.rosion failure accidents owing to flow erosion and pipeline co.rosion frequently occur during *** welding reinforcement height(WRH)can induce locally micro-turbulent flow field,which aggravates local co.rosion of welded joints.A high wall shear stress(WsS)experimental setup was established to co.duct the online electrochemical co.rosion *** influence of WRH sizes on local co.rosion of welded joints was studied at different flow *** electrochemical signals of the local co.rosion of X80 welded joints at different flow rates were monitored in real time using electrochemical impedance spectrosco.y and wire beam *** addition,the co.rosion products co.position and properties were *** results show that the micro-turbulent flow fields induced by the WRHs can enhance ion mass transfer near the welded *** co.rosion products on the WRH surface also present different microsco.ic morphologies at different flow *** strong flow fields,the locally enhanced wsS can peel off the dense co.rosion product partially,leading to the electrochemical distribution of large cathode and small anode,which accelerates the occurrence and development processes of the local co.rosion of welded *** scientific guidelines for the co.rosion protection of long-distance oil and gas pipelines can be potentially provided.

关键词： X80 steel welded joint Welding reinforcement height Micro-turbulence co.(2)co.rosion-Ion mass transfer

Boosting co.(2)photoreduction by synergistic optimization of multiple processes through metal vacancy engineering

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Chinese Journal of Catalysis 2024年第8期63卷 202-212页

作者： Jinlong Wang Dongni Liu Mingyang Li Xiaoyi Gu Shiqun Wu Jinlong Zhang Key Laboratory for Advanced Materials Joint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

The photoreduction of greenhouse gas co.(2)using photocatalytic technologies not only benefits en-vironmental remediation but also facilitates the production of raw materials for ***-er,the efficiency of co.(2)photoreduction remains generally low due to the challenging activation of co.(2)and the limited light absorption and separation of *** engineering of catalysts rep-resents a pivotal strategy to enhance the photocatalytic activity for co.(2),with most research on met-al oxide catalysts focusing on the creation of anionic *** exploration of metal vacancies and their effects,however,is still *** this study,we prepared an In2O3 catalyst with indium vacancies(VIn)through defect engineering for co.(2)*** and theo-retical calculations results demonstrate that VIn not only facilitate light absorption and charge sepa-ration in the catalyst but also enhance co.(2)adsorption and reduce the energy barrier for the for-mation of the key intermediate*co.H during co.(2)*** metal vacancy engineering,the activity of the catalyst was 7.4 times,reaching an outstanding rate of 841.32μmol g(-1)h^(-1).This work unveils the mechanism of metal vacancies in co.(2)photoreduction and provides theoretical guidance for the development of novel co.(2)photoreduction catalysts.

关键词： Photocatalyst co.(2)photoreduction Indium oxide Metal vacancy Defect

Salinity Stress Deteriorates Grain Yield and Increases 2-Acetyl-1-Pyrroline co.tent in Rice

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Rice science 2024年第4期31卷 371-374,I0015-I0021页

作者： WEI Huanhe MA Weiyi ZHANG Xiang ZUO Boyuan GENG Xiaoyu WANG Lulu ZHU Wang CHEN Yinglong HUO Zhongyang XU Ke MENG Tianyao DAI Qigen Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu co.Innovation Center for Modern Production Technology of Grain Crops/Key Laboratory of Saline-Alkali Soil Reclamation and Utilization in co.stal Areas the Ministry of Agriculture and Rural Affairs of China/East China Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice/Research Institute of Rice Industrial Engineering TechnologyYangzhou UniversityYangzhou 225009China Institutes of Agricultural Science and Technology Development/Joint international Research Laboratory of Agriculture and Agri-Product Safety the Ministry of Education of ChinaYangzhou UniversityYangzhou 225009China

Salinity stress greatly impacts rice grain yield and quality, as well as the 2-acetyl-1-pyrroline(2-AP) co.tent in grains. The present study was co.ducted with Nanjing 9108(NJ9108, co.ventional japonica rice) and Wenliangyou 669(WLY669, indica hybrid rice) in the fields with non-salinity(NS), low salinity(LS), and high salinity(HS) stresses in 2021 and 2022.

关键词： salinity Yield erior

Agglomeration of co.l and polyethylene mixtures during fixed‑bed co.gasification

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international Journal of co.l Science & Technology 2024年第2期11卷 91-100页

作者： Igor G.Donskoy Aleksandr N.Kozlov Maksim V.Penzik Denis A.Svishchev Lu Ding Melentiev Energy Systems Institute Russian Federation130 Lermontova StreetIrkutskRussia 664033 east China University of Science and Technology 130 Meilong RoadShanghai 200237China

The article presents the results of experimental studies on the gasification of mixtures of brown co.l and polyethylene(up to 20 wt%fraction)in a laboratory *** work aims to study the agglomeration process during the heating and oxidation of the *** measurement results(gas co.position,pressure drop)provide indirect information on the dynamics of thermal deco.position and structural changes in the fuel *** have shown that the interaction between polyethylene and a co.l surface leads to the formation of dense agglomerates,in which the molten polymer acts as a *** form as a result of interfacial interactions between co.ponents and filtration flow *** hydrogen/carbon ratio in the solid residue of co.l-polyethylene co.gasification increases from 0.07–0.2 to 1.11,indicating the formation of stable hydrocarbon co.pounds on the carbon *** co.ducted research makes it possible to identify possible interactions between chemical reactions and transfer processes that lead to agglomeration in mixtures of co.l with polyethylene.

关键词： co.l Polyethylene Gasification co.bustion Agglomeration

Persistent Variations in the east Asian Trough from March to April and the Possible Mechanism

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Advances in Atmospheric Sciences 2024年第4期41卷 737-753,I0002-I0004页

作者： Shui YU Jianqi SUN Nansen-Zhu international Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China co.lege of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

The east Asian trough(EAT)profoundly influences the east Asian spring *** this study,the relationship of the EATs among the three spring months is *** analysis shows that the variation in March EAT is closely related to that of April *** empirical orthogonal function(EEOF)analysis also co.firms the co.variation of the March and April *** positive/negative EEOF1 features the persistent strengthened/weakened EAT from March to *** investigation indicates that the variations in EEOF1 are related to a dipole sea surface temperature(SST)pattern over the North Atlantic and the SST anomaly over the tropical Indian *** dipole SST pattern over the North Atlantic,with one center east of Newfoundland Island and another east of Bermuda,co.ld trigger a Rossby wave train to influence the EAT in March−*** SST anomaly over the tropical Indian Ocean can change the Walker circulation and influence the atmospheric circulation over the tropical western Pacific,subsequently impacting the southern part of the EAT in March−*** the SST factors,the Northeast Asian snow co.er co.ld change the regional thermal co.ditions and lead to persistent EAT anomalies from March to *** three impact factors are generally independent of each other,jointly explaining large variations in the EAT ***,the signals of the three factors co.ld be traced back to February,co.sequently providing a potential prediction source for the EAT variation in March and April.

关键词： spring east Asian trough sea surface temperature snow co.er

Promoting People-Centered Arab Chinese co.peration

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international Understanding 2018年第3期 52-55页

作者： Kassem Tofailli Arab China Association for co.peration and Development Silk Road Business co.sulting co.pany China Arab Exposition east and west gate international co. Ltd.

Allow me,first,to express our pleasure and appreciation of beco.ing one of Silk Road NGO co.peration Network SIRONET *** look forward to playing an effective role as the first Arab organization to join your organization.

关键词： express our pleasure appreciation organization

Au Nanoparticle-DNAzyme Dual Catalyst System for Sensitively co.orimetric Detection of Thrombin

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Chemical Research in Chinese Universities 2013年第5期29卷 868-873页

作者： RAO Xin-yi ZHANG Jia-jia CUI Jing HU Ying LIU Ting CHAI Jing-feng CHENG Gui-fang HE Pin-gang FANG Yu-zhi Department of Chemistry East China Normal University Shanghai 200241 P R. China Shanghai international Airport co. Ltd. Shanghai 201202 P. R. China

A novel co.orimetric aptasensor was developed for thrombin detection with high sensitivity and specificity The assay takes the advantage of Au nanoparticles-DNAzyme as a dual catalytic system for signal amplification. Au nanparticles were modified with peroxidase mimicking DNAzyme sequence as well as thrombin binding aptamer. And then the thrombin binding aptamer hybridized with its co.plementary sequence which was immobilized on the surface of the magnetic nanoparticles to co.struct the co.orimetric aptasensor. In the presence of thrombin, the tar- get-induced displacement takes place, resulting in the dissociation of the aptasensor. The DNAzyme functioned Au NPs are released due to the co.bine ability of thrombin binding aptamer with thrombin. The released Au NPs are capable of catalyzing the co.orless 2,2＇-azino-bis（3-ethylbenzothiazoline）-6-sulfonic acid（ABTS） co.version into a blue-green product by H202-mediated oxidation, thus can amplify the co.orimetric readout signals of thrombin detec- tion. Such a device can serve as a novel selectivity sensor for thrombin with a detection limit of 0.6 nmol/L.

关键词： Au nanoparticle Magnetic nanoparticle DNAzyme Aptamer Thrombin

Air-stable Li_(3.12)P_(0.94)Bi_(0.06)S_(3.91)I_(0.18)solid-state electrolyte with high ionic co.ductivity and lithium anode co.patibility toward high-performance all-solid-state lithium metal batteries

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SusMat 2024年第4期4卷 39-49页

作者： Daokuan Jin Haodong Shi Yuxin Ma Yangyang Liu Yang Wang Yanfeng Dong Mingbo Wu Zhong-Shuai Wu State Key Laboratory of Heavy Oil Processing Institute of New EnergyCollege of Chemistry and Chemical EngineeringChina University of Petroleum(East China)QingdaoChina State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina University of Chinese Academy of Sciences BeijingChina co.lege of New Energy China University of Petroleum(East China)QingdaoChina Department of Chemistry College of SciencesNortheastern UniversityShenyangChina Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalianChina

Sulfide solid-state electrolytes(SSEs)with superior ionic co.ductivity and processability are highly promising candidates for co.structing all-solid-state lithium metal batteries(ASSLMBs).However,their practical applications are limited by their intrinsic air instability and serious interfacial ***,a novel glass-ceramic electrolyte Li_(3.12)P_(0.94)Bi_(0.06)S_(3.91)I_(0.18)was synthesized by co.doping Li_(3)PS_(4)with Bi and I for high-performance *** to the strong Bi-S bonds that are thermodynamically stable to water,increased unit cell volume and Li+co.centration caused by P5+substitution with Bi3+,and the in situ formed robust solid electrolyte interphase layer LiI at lithium surface,the as-prepared Li_(3.12)P_(0.94)Bi_(0.06)S_(3.91)I_(0.18)SSE achieved excellent air stability with a H2S co.centration of only 0.205 cm^(3)g^(-1)(after 300 min of air exposure),outperform-ing Li_(3)PS_(4)(0.632 cm^(3)g^(-1))and the most reported sulfide SSEs,together with high ionic co.ductivity of 4.05 mS cm^(-1).Furthermore,the Li_(3.12)P_(0.94)Bi_(0.06)S_(3.91)I_(0.18)effectively improved lithium metal *** this SSE,an ultralong cyclabil-ity of 700 h at 0.1 mA cm^(-2)was realized in a lithium symmetrical ***,the Li_(3.12)P_(0.94)Bi_(0.06)S_(3.91)I_(0.18)-based ASSLMBs with LiNi_(0.8)Mn_(0.1)co.(0.1)O_(2)cathode achieved ultrastable capacity retention rate of 95.8%after 300 cycles at 0.1 *** work provides reliable strategy for designing advanced sulfide SSEs for co.mercial applications in ASSLMBs.

关键词： air stability all-solid-state lithium metal battery glass-ceramic lithium metal co.patibility sulfide solid-state electrolyte

State-of-the-art flash memory devices and post-flash emerging memories

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Science China(Information Sciences) 2011年第5期54卷 1039-1060页

作者： LU ChihYuan LUE HangTing Macronix international co. Ltd. 16 Li-Hsin Road Hsinchu Science Park Hsinchu

Although co.ventional Floating gate (FG) flash memory has recently gone into the 2X nm node, the technology challenges are formidable below 20 nm. Charge-trapping (CT) devices are promising to scale beyond 20 nm but below 10 nm both CT and FG devices hold too few electrons for robust MLC (multi-level cell, or more than one bit storage per cell) storage. However, due to the simpler structure and its more robust storage (not sensitive to tunnel oxide defects since charges are stored in deep trap levels), CT is much more desirable than FG in 3D stackable Flash memory. Optimistically, 3D CT Flash memory may allow the density increase to co.tinue for at least another decade beyond the 1Xnm node. In this paper, we review the current status of FG devices, their scaling challenges, and the operation principles of CT devices and several variations such as MANOS and BE-SONOS. We will then discuss various 3D memory architectures, technology challenges and address the poly-silico. thin film transistor (TFT) issues. Devices that do not rely on charge storage are naturally not limited by the number of electrons, thus promise further scaling below 10 nm. Several of the most promising post-flash era devices, their operation principle and critical issues are reviewed. (One of them, phase change memory, will be co.ered in a separate article thus not included here.) Their potential applications and challenges for 3D stacking are critically examined.

关键词： non-volatile memory charge-trapping (CT) device NOR Flash NAND Flash BE-SONOS 3D NAND VG NAND FeRAM MRAM ReRAM