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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 308-324页

作者： Gang Niu Rui Yuan R.D.K.Misra Na Gong Zhi-Hui Zhang hao-Xiu Chen Hui-Bin Wu Cheng-Jia Shang Xin-ping Mao Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing100083China Laboratory for Excellence in Advanced Steel Research Department of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX79968USA Institute of Materials Research and Engineering Agency for ScienceTechnologyand ResearchSingapore138634Singapore Department of Materials Science and Engineering University of TorontoTorontoONM5S 3E4Canada

The corrosion behavior and mechanism of 3Ni weathering steel in a simulated oceanic atmospheric environment are investigated in order to comprehend the impacts of La,as determined through electrochemical analysis and rust layer *** results of this study demonstrate that the addition of La enhances the corrosion resistance of 3Ni weathering steel in the marine atmospheric environment,thereby reducing the corrosion rate and improving the protection of the rust *** influence of La on corrosion resistance can be attributed to two primary ***,La functions as a grain refiner,minimizing the potential difference of the micro-regions on the substrate surface,thereby significantly reducing the corrosion of bare steel in the marine ***,La inhibits the process of Fe_(3)O_(4) oxidation back toγ-FeOOH during corrosion at the local site,thus decreasing the formation ofγ-FeOOH and enhancing the charge transfer *** research work may serve as a reference for expanding the application of rare earth elements in the field of weathering steel.

关键词： Weathering steel Rare earth Rust layer Corrosion behavior Corrosion resistance

Application and optimization design of non-obstructive particle damping-phononic crystal vibration isolator in viaduct structure-borne noise reduction

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Journal of Central South University 2024年第7期31卷 2513-2531页

作者： SHI Duo-jia Zhao Cai-you ZHANG Xin-hao ZHENG Jun-yuan WEI Na-chao WANG ping Key Laboratory of High-speed Railway Engineering Ministry of EducationSouthwest Jiaotong UniversityChengdu 610031China School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China

The problems associated with vibrations of viaducts and low-frequency structural noise radiation caused by train excitation continue to increase in importance.A new floating-slab track vibration isolator-non-obstructive particle damping-phononic crystal vibration isolator is proposed herein,which uses the particle damping vibration absorption technology and bandgap vibration control *** vibration reduction performance of the NOPD-PCVI was analyzed from the perspective of vibration *** paper explores the structure-borne noise reduction performance of the NOPD-PCVIs installed on different bridge structures under varying service conditions encountered in practical engineering *** load transferred to the bridge is obtained from a coupled train-FST-bridge analytical model considering the different structural parameters of *** vibration responses are obtained using the finite element method,while the structural noise radiation is simulated using the frequency-domain boundary element *** the particle swarm optimization algorithm,the parameters of the NOPD-PCVI are optimized so that its frequency bandgap matches the dominant bridge structural noise frequency *** noise reduction performance of the NOPD-PCVIs is compared to the steel-spring isolation under different service conditions.

关键词： non-obstructive particle damping phononic crystal vibration isolator band gap optimization floating-slab track bridge structure-borne noise control particle swarm optimization

Development of T cell antigen-based human coronavirus vaccinesagainst nAb-escaping SARS-CoV-2 variants

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Science Bulletin 2024年第15期69卷 2456-2470页

作者： hao Zhou ping Leng Yang Wang Kaiwen Yang Chen Li David M.Ojcius Pengfei Wang Shibo Jiang College of Medical Technology Chengdu University of Traditional Chinese MedicineChengdu 611137China Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine Chongqing Traditional Chinese Medicine HospitalChongqing 400016China Shanghai Pudong Hospital Fudan University Pudong Medical CenterShanghai Institute of Infectious Disease and BiosecuritySchool of Life SciencesFudan UniversityShanghai 200438China Department of Biomedical Sciences University of the PaciﬁcArthur Dugoni School of DentistrySan FranciscoCA 94115USA Key Laboratory of Medical Molecular Virology of Ministry of Education/Ministry of Health/Chinese Academy of Medical Sciences Shanghai Institute of Infectious Disease and BiosecuritySchool of Basic Medical SciencesFudan UniversityShanghai 200032China

Currently approved vaccines have been successful in preventing the severity of COVID-19 and hospitalization. These vaccines primarily induce humoral immune responses;however, highly transmissible and mutated variants, such as the Omicron variant, weaken the neutralization potential of the vaccines, thus,raising serious concerns about their efficacy. Additionally, while neutralizing antibodies(nAbs) tend to wane more rapidly than cell-mediated immunity, long-lasting T cells typically prevent severe viral illness by directly killing infected cells or aiding other immune cells. Importantly, T cells are more cross-reactive than antibodies, thus, highly mutated variants are less likely to escape lasting broadly cross-reactive T cell immunity. Therefore, T cell antigen-based human coronavirus(HCoV) vaccines with the potential to serve as a supplementary weapon to combat emerging SARS-CoV-2 variants with resistance to n Abs are urgently needed. Alternatively, T cell antigens could also be included in B cell antigen-based vaccines to strengthen vaccine efficacy. This review summarizes recent advancements in research and development of vaccines containing T cell antigens or both T and B cell antigens derived from proteins of SARS-CoV-2 variants and/or other HCo Vs based on different vaccine platforms.

关键词： COVID-19 Immune escape Omicron variant SARS-CoV-2 T cell antigen-based vaccine

Millimeter-sized few-layer graphene sheets with aligned channels for fast lithium-ion charging kinetics

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Journal of Energy Chemistry 2021年第4期30卷 62-69页

作者： Yu-Qi Zhou Xiao-Ling Dong Wen-Cui Li Guang-ping hao Dong Yan An-Hui Lu State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024LiaoningChina

Assembly of the top-down graphene units mostly results in 3D porous structure with randomly organized *** direct bottom-up synthesis of macroscopic 2D graphene sheets with organized pores are long sought in materials chemistry field,but rarely ***,we present a self-catalysisassisted bottom-up route usingL-glutamic acid and iron chloride as starting materials for the fabrication of the millimeter-sized few-layer graphene sheets with aligned porous channels parallel to the 2D *** amino-and carboxyl-functional groups inL-glutamic acid can coordinate with iron cations,thus allowing an atomic dispersion of iron *** pyrolysis thus initiated the growth of graphene catalyzed by in-situ generated iron nanoparticles,and a dynamic flow of iron nanoparticles eventually led to the formation of millimeter-sized few-layer graphene sheets with aligned channels(60-85 nm in diameter).Used as anodes in lithium-ion batteries,these graphene sheets showed a good rate capability(142 m A h g^(-1) at 2 A g^(-1))and high capacity retention of 93%at 2 A g^(-1) after 1200 *** analysis revealed that lithium ions storage was dominated by diffusion behavior and capacitive behavior together,in that graphene sheets with aligned channels could accelerate electron transfer and shorten lithium ions transport *** work provides a novel approach to prepare unique porous graphene materials with specific structure for energy storage.

关键词： Few-layer graphene Aligned channels Catalytic growth Lithium-ion batteries

Analysis of Solutions of the Holling-Tanner Model

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Acta Mathematicae Applicatae Sinica 2024年

作者： Ying-chao hao Kun-lun HUANG Xin-tian JIA Cui-ping LI School of Mathematical Sciences Beihang University

In this paper we consider a kind of predator-prey model named Holling-Tanner model. Firstly, we prove all solutions of this model to be bounded from above. Secondly, we find a positive invariant set of the model, and prove the existence of stable limit cycle in this invariant set by Poincar′e-Bendixson theorem for the unstable equilibrium. Thirdly, we get the region of parameters in which the corresponding stable equilibrium are also globally asymptotically stable. Lastly, we give a bifurcation diagram and illustration with two limit cycles for special parameters through numerical simulation. By our knowledge, the invariant set constructed in this paper is better than that in the book written by Murray.

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Promoting effect of ethanol on the synthesis of N-(2-methylphenyl)-hydroxylamine from o-nitrotoluene in Zn/H_2O/CO_2 system

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Chinese Chemical Letters 2011年第2期22卷 221-224页

作者： Shi Juan Liu Yan Hua Wang Yuan ping hao Jing Yang Jiang College of Chemical Engineering State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 China College of Chemistry Jilin Normal University Siping 136000 China Received 7 May 2010

The promoting effect of ethanol on the synthesis of N-（2-methylphenyl）hydroxylamine from o-nitrotoluene in Zn/H2O/CO2 system was *** adding appropriate amount of ethanol,the selectivity of N-（2-methylphenyl）hydrox... 详细信息

关键词： o-Nitrotoluene N-(2-Methylphenyl)hydroxylamine Reduction Zn CO2/H2O

粳型紫色糯稻新品种“岫紫糯1号”选育及栽培要点

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云南农业科技 2024年第3期 57-59页

作者：康洪灿钏兴宽王锦艳张义段浩平尹正钦何荣满李国生保山市农业科学研究所云南隆阳区678000

岫紫糯1号2021年通过云南省审定,审定编号为滇审稻2021038。2022年申请植物新品种权保护,初审通过。文章介绍了该品种的选育背景、亲本来源、选育过程、品种特征特性及主要栽培要点。

关键词：特种稻岫紫糯1号选育特征特性

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山西榆社县减租减息推行中的困境与应对

安徽史学 2023年第5期 114-122页

作者：郝平安旺旺山西大学历史文化学院山西太原030006 山西大学考古文博学院山西太原030006

作为较早推行减租减息的“实验县”,山西省榆社县在具体实践过程中一度遭遇较大困境。这其中,农民的复杂心态、地主的阻挠破坏、干部队伍建设问题和运动方式“过火”等一系列问题尤为棘手。为此,中共通过持续动员广大民众、改造问题地... 详细信息

作为较早推行减租减息的“实验县”,山西省榆社县在具体实践过程中一度遭遇较大困境。这其中,农民的复杂心态、地主的阻挠破坏、干部队伍建设问题和运动方式“过火”等一系列问题尤为棘手。为此,中共通过持续动员广大民众、改造问题地主、整改干部队伍、纠正“过火”行为等措施,并且在政策的执行和问题处理上注重民主协商,兼顾各方权益,从而有效地维护了抗日民族统一战线。榆社县减租减息的“实验”是中共在实施减租减息过程中发现问题、积极应对、逐步调整方法和措施,进而取得成功的典型案例,为根据地减租减息政策的成功推行奠定了良好基础,积累了宝贵经验。

关键词：榆社县减租减息困境与应对

A Retrospective Study Comparing Surgical and Early Oncological Outcomes between Intracorporeal and Extracorporeal Ileal Conduit after Laparoscopic Radical Cystectomy from a Single Center

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Chinese Medical Journal 2018年第7期131卷 784-789页

作者： Ming-Shuai Wang Qing-Bao He Fei-Ya Yang hao ping Nian-Zeng Xing Department of Urology Beijing Chao-Yang Hospital Capital Medical University Beijing 100020 China

Background： Robot-assisted/laparoscopic intracorporeal ileal conduit （ICIC） has been reported in many experienced centers. Whether laparoscopic ICIC is superior to extracorporeal ileal conduit （ECIC） and whether laparoscopic ICIC should be promoted is still controversial. The aim of the study was to compare surgical and early oncological outcomes between patients undergoing laparoscopic radical cystectomy （LRC） with ICIC and ECIC. Methods： From January 2011 to June 2016, a total of 45 patients with bladder cancer underwent LRC with ileal conduit at our department, of whom 20 patients underwent LRC with ECIC and 25 patients underwent LRC with ICIC. Data of each patient＇s characteristics, surgical outcomes, and short-term oncological outcomes were collected and analyzed. Results： LRC with ileal conduit was performed successfully on all 45 patients. There were no significant differences in patients＇ characteristics, mean total operative time, and mean estimated blood loss between the ICIC and ECIC groups. Median time of flatus and oral intake was shorter in the ICIC group compared with the ECIC group （3 vs. 5 days, P = 0.035; 4 vs. 5 days, P = 0.002）. The complications rates did not show significant difference between the two groups within the first 90 days postoperatively （P = 0.538）. Cancer staging showed 45% of patients in the ECIC group and 36% in the ICIC group had a pathologic stage of T3 or T4, and 50% of patients in the ECIC group and 44% in the ICIC group had a pathologic stage of N1 or N1＋. Kaplan-Meier analysis showed no significant difference in overall survival at 24 months （60% vs. 62%, P = 0.857） between the ECIC and ICIC groups. Conclusions： ICIC after LRC may be successful with the benefits of faster recovery time. No significant difference was found in complications and oncological outcomes between ICIC and ECIC. However, larger series with longer follow-up are needed to validate this procedure.

关键词： Ileal Conduit Laparoscopy Urinary Bladder Cancer

Endoscopic Combined Intrarenal Surgery for the Treatment of Postpercutaneous Nephrolithotomy Residual Stones

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Chinese Medical Journal 2016年第23期129卷 2885-2887页

作者： hao ping Jun-Hui Zhang Ming-Shuai Wang Nian-Zeng Xing Department of Urology Beijing Chaoyang Hospital Capital Medical University Beijing 100020 China

Endourological treatment modalities for kidney stones include extracorporeal shock wave lithotripsy （ESWL）, flexible ureteroscopy （fURS）, percutaneous nephrolithotomy （PCNL）, and *** is currently the recommended treatment for patients with complex renal stones. However, for complex renal stones, the residual stone after PCNL is very common, and the treatment is a sticky business.

关键词： Endoscopic Combined lntrarenal Surgery Percutaneous Nephrolithotomy Renal Stones Residual Stone Fragments