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Journal of Materials Science & Technology 2001年第2期17卷 271-274页

作者： Chenghui GAO, Dajian CHEN and baiyang zhou Department of Mechanical Engineering, Fuzhou University, Fujian, Fuzhou 350002, China Dept. of Mech. Eng. Fuzhou Univ. Fuzhou 350002 China

Nitriding is employed for the hard Fe electrodeposition to produce a hard-facing and antiwear coating. It only takes 1 h for the hard Fe coating, which is much shorter than nitriding the Fe and steel. The results showed that the nitriding can increase the microhardness, wear resistance of the coating, as well as the bonding strength of the coating with the substrate. Additionally it can eliminate the brittleness, turn the internal stress of the coating from tension to compression. The wear resistance of the nitrided Fe coating is 4.6 times as high as that of Cr coating. It is simple and economic to combine hard Fe electroplating and nitriding, which is a good technology of the tribological surface modification.

关键词： Fe Nitriding of Hard Fe Electrodepositionand Its Effects on Wear Resistance

Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

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Journal of Materials Science & Technology 1997年第2期13卷 137-140页

作者： Chenghui GAO baiyang zhou (Institute for Materials Research, Fuzhou University, Fuzhou 350002, China)(Manuscript received February 22, 1996, in revised form June 3, 1996) Institute for Materials Research Fuzhou University Fuzhou 350002 China

The magnetic properties, structure defects of electrodeposited Fe-Ni-P alloys with various compositions and the thermostability at amorphous state have been studied by DSC, positron annihilation and electronic integrating instrument methods. The results show that the thermostability of amorphous Fe-Ni-P alloys increases with Fe content. Emergence and recrystallization of stable phases defer as the P content of the coating increases. The minimum H-c, B-r and P-h occur at 9.4 P (wt pet) content. Maximum H-c, B-r and P-h occur at the weight ratio of Fe to Ni equaling to 1/9.

关键词： Ni Fe Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

成膜时外加稳恒磁场对Fe-Ga-Al-Y磁致伸缩薄膜磁性能的影响

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稀有金属材料与工程 2018年第8期47卷 2411-2416页

作者：张鲁钟周白杨郑运相福州大学材料科学与工程学院福建福州350116 福州大学至诚学院福建福州350002

借助自行设计的磁场发生器,以铍青铜为衬底,采用离子束溅射沉积法在不同稳恒磁场环境下制备Fe-Ga-Al-Y磁致伸缩薄膜(MF)样品,其成分为Fe_(74.34~79.33)Ga_(11.45~13.73)Al_(5.33~6.95)Y_(3.27~4.36)。采用原子力显微镜(AFM)与扫描电镜(SEM)观测Fe-Ga-Al-Y MF表面形貌,通过激光微位移传感器和交变梯度磁强计分别对薄膜样品的悬臂梁自由端偏转量与磁滞回线进行测定,研究Fe-Ga-Al-Y MF表面形貌以及成膜时外加稳恒磁场方向及大小对Fe-Ga-Al-Y MF磁性能的影响。研究结果表明:通过IBSD法制备的薄膜样品表面光滑平整,无明显的缺陷,薄膜组织结构均匀致密,具有优异的成膜质量。成膜时施加的稳恒磁场能调控薄膜的易磁化轴方向,Fe-Ga-Al-Y MF的易磁化轴方向与成膜时所施加的稳恒磁场方向一致;成膜时施加与衬底短轴方向平行的稳恒磁场,可以显著提高Fe-Ga-Al-Y MF的饱和磁致伸缩性能,且随着磁场的增大,薄膜的饱和磁致伸缩性能逐渐增加。薄膜面内(沿着x轴方向、y轴方向)的饱和磁化强度、矫顽力也随着磁场的增大而逐渐增大。

关键词： Fe-Ga-Al-Y磁致伸缩薄膜 IBSD 外加稳恒磁场磁性能

Silencing of the long non-coding RNA LINC00265 triggers autophagy and apoptosis in lung cancer by reducing protein stability of SIN3A oncogene

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Oncology Research 2024年第7期32卷 1185-1195页

作者： XIAOBI HUANG CHUNYUAN CHEN YONGYANG CHEN HONGLIAN zhou YONGHUA CHEN ZHONG HUANG YULIU XIE baiyang LIU YUDONG GUO ZHIXIONG YANG GUANGHUA CHEN WENMEI SU Department of Pulmonary Oncology Affiliated Hospital of Guangdong Medical UniversityZhanjiang524001China Department of Thoracic Surgery Affiliated Hospital of Guangdong Medical UniversityZhanjiang524001China Department of Orthopedics Affiliated Hospital of Guangdong Medical UniversityZhanjiang524001China Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-Communicable Diseases Affiliated Hospital of Guangdong Medical UniversityZhanjiang524001China

Background:Long non-coding RNAs are important regulators in cancer biology and function either as tumor suppressors or as *** dysregulation has been closely associated with ***00265 is upregulated in lung adenocarcinoma and is a prognostic biomarker of this ***,the mechanism underlying its function in cancer progression remains poorly ***:Here,the regulatory role of LINC00265 in lung adenocarcinoma was examined using lung cancer cell lines,clinical samples,and ***:We found that high levels of LINC00265 expression were associated with shorter overall survival rate of patients,whereas knockdown of LINC00265 inhibited proliferation of cancer cell lines and tumor growth in *** blot andﬂow cytometry analyses indicated that silencing of LINC00265 induced autophagy and ***,we showed that LINC00265 interacted with and stabilized the transcriptional co-repressor Switch-independent 3a(SIN3A),which is a scaffold protein functioning either as a tumor repressor or as an oncogene in a context-dependent *** of SIN3A also reduced proliferation of lung cancer cells,which was correlated with the induction of *** observations raise the possibility that LINC00265 functions to promote the oncogenic activity of SIN3A in lung ***:Ourﬁndings thus identify SIN3A as a LINC00265-associated protein and should help to understand the mechanism underlying LINC00265-mediated oncogenesis.

关键词： LINC00265 Autophagy Lung adenocarcinoma(LUAD) Cancer progression Switch-independent 3a(SIN3A)

温度对复合CrTiAlN涂层摩擦磨损性能的影响

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稀有金属材料与工程 2018年第3期47卷 949-953页

作者：楼白杨王肖璟周艳徐斌李晓吴旻浙江工业大学浙江杭州310014

采用物理沉积技术在M2高速钢制备多元复合CrTiAlN涂层。采用发射扫描电子显微镜、能谱仪、激光共聚焦扫描电镜和球-盘式高温摩擦磨损试验机等手段对涂层的摩擦学行为进行研究。结果表明,涂层的摩擦系数随环境温度升高呈上升趋势。室温... 详细信息

采用物理沉积技术在M2高速钢制备多元复合CrTiAlN涂层。采用发射扫描电子显微镜、能谱仪、激光共聚焦扫描电镜和球-盘式高温摩擦磨损试验机等手段对涂层的摩擦学行为进行研究。结果表明,涂层的摩擦系数随环境温度升高呈上升趋势。室温下涂层的摩擦系数约0.24,摩擦系数随时间变化曲线平缓;200℃时,摩擦初期涂层的摩擦系数随时间变化波动剧烈,0.5 h后进入稳定摩擦阶段,摩擦系数在0.53左右。同时,CrTiAlN涂层的磨损率也随环境温度升高呈上升趋势。高温摩擦时,摩擦随时间变化曲线波动很大,对磨球的受磨损程度也随温度升高而逐渐上升。涂层的磨损机制主要是氧化磨损、粘着磨损和磨粒磨损的共同作用。

关键词： CrTiAlN涂层摩擦磨损表面形貌温度

新型镶嵌式自润滑轴承材料的摩擦磨损性能研究

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热加工工艺 2009年第14期38卷 81-84页

作者：魏羟周白杨陈顺宽福州大学材料科学与工程学院福建福州350108 漳州市力胜工贸有限公司福建漳州363000

制备以聚四氟乙烯(PTFE)、石墨、铅粉、玻璃纤维(GF)掺和成自润滑剂的铜基镶嵌式自润滑轴承材料样品,采用立式万能摩擦磨损试验机,在干摩擦条件下考察其摩擦磨损性能,并用三维视频显微镜对摩擦表面进行形貌观察和分析。结果表明,在PTFE... 详细信息

制备以聚四氟乙烯(PTFE)、石墨、铅粉、玻璃纤维(GF)掺和成自润滑剂的铜基镶嵌式自润滑轴承材料样品,采用立式万能摩擦磨损试验机,在干摩擦条件下考察其摩擦磨损性能,并用三维视频显微镜对摩擦表面进行形貌观察和分析。结果表明,在PTFE中掺入不同配比石墨、铅粉、GF形成的自润滑剂,可不同程度地降低铜基自润滑轴承材料样品摩擦系数和磨损率,且GF的加入还能大幅度降低摩擦配副的磨损率。其中镶嵌有40%PTFE+20%石墨+20%铅粉+20%GF自润滑剂的铜基自润滑轴承材料样品具有较佳的综合摩擦磨损性能。

关键词：镶嵌式自润滑玻璃纤维轴承材料摩擦磨损

Parallel Physics-Informed Neural Networks Method with Regularization Strategies for the Forward-Inverse Problems of the Variable Coefficient Modified KdV Equation

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Journal of Systems Science & Complexity 2024年第2期37卷 511-544页

作者： zhou Huijuan School of Science Shanghai Maritime UniversityShanghai 201306China

This paper mainly introduces the parallel physics-informed neural networks(PPINNs)method with regularization strategies to solve the data-driven forward-inverse problems of the variable coefficient modified Korteweg-de Vries(VC-MKdV)*** the forward problem of the VC-MKdV equation,the authors use the traditional PINN method to obtain satisfactory data-driven soliton solutions and provide a detailed analysis of the impact of network width and depth on solving accuracy and ***,the author finds that the traditional PINN method outperforms the one with locally adaptive activation functions in solving the data-driven forward problems of the VC-MKdV *** for the data-driven inverse problem of the VC-MKdV equation,the author introduces a parallel neural networks to separately train the solution function and coefficient function,successfully addressing the function discovery problem of the VC-MKdV *** further enhance the network’s generalization ability and noise robustness,the author incorporates two regularization strategies into the *** amount of numerical experimental data in this paper demonstrates that the PPINNs method can effectively address the function discovery problem of the VC-MKdV equation,and the inclusion of appropriate regularization strategies in the PPINNs can improves its performance.

关键词： Data-driven forward-inverse problems parallel physics-informed neural networks regularization strategies variable coefficient modified KdV equation

Influence of stearic acid surface modification on flowability and agglomeration of battery grade Li_(2)CO_(3)powder

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Particuology 2024年第9期92卷 263-277页

作者： Ming zhou Lithium Industry Center Zhejiang New Era Zhongneng Technology Co.Ltd.Shaoxing312000China

This work investigates the flow and agglomeration behaviors of battery grade Li_(2)CO_(3)powder and the influence of stearic acid surface *** degree of agglomeration is directly related to the uniformity of Li_(2)CO_(3)and its powder *** to the Chinese National Nonferrous Metal Industry Standard,battery grade Li_(2)CO_(3)powder has D50 equal to 3–8μm which belongs to a micron-sized superfine ***,with the extension of storage time,the serious agglomeration phenomenon occurs due to the large specific surface area and rough and irregular powder *** Hausner ratio(HR)of the unmodified sample increases from 1.14 to 1.41,and the corresponding flowability is classified as good to ***,among samples with doping stearic acid,the optimum amount of it is 0.10 wt%which exhibits an extremely stable HR value from 1.14 to ***,after 156 days,the repose angle(AR)obtained for samples without surface modification and using 0.10 wt%stearic acid are calculated to be 49°and 28°,*** on the values of HR and AR,the flowability of the unmodified sample is poor while the sample modified with 0.10 wt%of stearic acid still maintain excellent powder flow ***,The LiMn_(2)O_(4)cathode material synthesized from modified Li_(2)CO_(3)powder with a stearic acid content of 0.10 wt%exhibits good crystallinity and comparable electrochemical performance to that prepared by commercial Li_(2)CO_(3).These results indicate that stearic acid has the potential to be an ideal modifier for battery grade Li_(2)CO_(3)powder that needs to be kept for a long time.

关键词： Battery grade Li_(2)CO_(3)powder Flowability Surface modification Stearic acid

Overexpression of tonoplast Ca^(2+)-ATPase in guard cells synergistically enhances stomatal opening and drought tolerance

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Journal of Integrative Plant Biology 2024年第8期66卷 1587-1602页

作者： Jinghan Su Bingqing He Peiyuan Li baiyang Yu Qiwen Cen Lingfeng Xia Yi Jing Feibo Wu Rucha Karnik Dawei Xue Michael R.Blatt Yizhou Wang Institute of Crop Science Zhejiang UniversityHangzhou 310058China Laboratory of Plant Physiology and Biophysics University of GlasgowGlasgow G128QQUK BGI Research Sanya 572025China College of Life and Environmental Sciences Hangzhou Normal UniversityHangzhou 311121China Zhejiang Provincial Key Laboratory of Crop Germplasm Zhejiang UniversityHangzhou 310058China

Stomata play a crucial role in plants by controlling water status and responding to drought ***,simultaneously improving stomatal opening and drought tolerance has proven to be a significant *** address this issue,we employed the OnGuard quantitative model,which accurately represents the mechanics and coordination of ion transporters in guard *** the guidance of OnGuard,we successfully engineered plants that overexpressed the main tonoplast Ca^(2+)-ATPase gene,ACA11,which promotes stomatal opening and enhances plant ***,these transgenic plants also exhibited improved drought tolerance due to reduced water loss through their ***,OnGuard assisted us in understanding the mechanism behind the unexpected stomatal behaviors observed in the ACA11 overexpressing *** study revealed that the overexpression of ACA11 facilitated the accumulation of Ca^(2+)in the vacuole,thereby influencing Ca^(2+)storage and leading to an enhanced Ca^(2+)elevation in response to abscisic *** regulatory cascade finely tunes stomatal responses,ultimately leading to enhanced drought *** findings underscore the importance of tonoplast Ca^(2+)-ATPase in manipulating stomatal behavior and improving drought ***,these results highlight the diverse functions of tonoplast-localized ACA11 in response to different conditions,emphasizing its potential for future applications in plant enhancement.

关键词： ACA11 drought guard cells modeling stomata