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Performance prediction of magnetorheological fluid‐based liquid gating membrane by kriging machine learning method

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Interdisciplinary Materials 2022年第1期1卷 157-169页

作者： Mengchuang zhang Yuan Jing jian zhang Zhizhi Sheng Yaqi Hou Jiadai Xu Baiyi Chen Jing Liu Miao Wang Xu Hou Department of Physics Research Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional Materials ResearchJiujiang Research InstituteCollege of Physical Science and TechnologyXiamen UniversityXiamenChina Institute of Artificial Intelligence Xiamen UniversityXiamenChina school of Civil Aviation Northwestern Polytechnical UniversityXi'anChina Yangtze River Delta Research Institute of Northwestern Polytechnical university Taicang CityJiangsu ProvinceChina State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of SciencesSuzhouChina Innovation Laboratory for sciences and Technologies of Energy Materials of Fujian Province(IKKEM) XiamenChina

Smart liquid gating membrane is a responsive structural material as a pressure-driven system that consists of solid membrane and dynamic liquid,responding to the external *** accurate prediction of rheological and mechanical properties is important for the designs of liquid gating membranes for various ***,high predicted accuracy by the traditional sequential method requires a large amount of experimental data,which is not practical in some *** conquer these problems,artificial intelligence has promoted the rapid development of material science in recent years,bringing hope to solve these *** we propose a Kriging machine learning model with an active candidate region,which can be smartly updated by an expected improvement probability method to increase the local accuracy near the most sensitive search region,to predict the mechanical and rheolo-gical performance of liquid gating system with an active minimal size of ex-perimental *** this,this new machine learning model can instruct our experiments with optimal *** methods are then verified by liquid gating membrane with magnetorheological fluids,which would be of wide interest for the design of potential liquid gating applications in drug release,microfluidic logic,dynamic fluid control,and beyond.

关键词： active candidate region techniques artificial intelligence Kriging machine learning method magnetorheological fluid-based liquid gating membrane rheological and mechanical model

Recent advance in single-atom catalysis

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Rare Metals 2021年第4期40卷 767-789页

作者： Zeng-Xi Wei Ya-Ting Zhu Jin-Yuan Liu Zhi-Cheng zhang Wen-Ping Hu Hui Xu Yue-Zhan Feng jian-Min Ma school of Physics and Electronics Hunan UniversityChangsha 410082China Tianjin Key Laboratory of Molecular Optoelectronic sciences Department of ChemistrySchool of ScienceTianjin University and Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China school of the Environment and Safety Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Single-atom catalysts(SACS) have obtained a great deal of attention in many catalytic fields due to the high atom utilization efficiency and high catalytic ***,great achievements on S ACs have been made for thermocatalysis,electrocatalysis,and photocatalysis which play an important role in obtaining value-added ***,it remains a great challenge to fabricate S ACs with high metal loading and investigate their reaction ***,it is necessary to highlight the recent development of S ACs in these fields to guide future *** this review,we overviewed the thermocatalysis applications of SACs in CO oxidation,preferential oxidation of CO,water-gas shift reaction,methane conversion,methanol steam reforming,aqueous-phase reforming of methanol,hydrogenation of alkynes and dienes,hydrogenation of CO,and hydrogenation of substituted ***,the oxygen reduction reaction(ORR),hydrogen evolution reaction(HER),oxygen evolution reaction(OER),CO2 reduction reaction(CO2 RR),and N2 reduction reaction(N2 RR) for photocatalytic and electrocatalytic fields were also ***,the opportunities and challenges of SACs were pointed out.

关键词： Single-atom catalysts Thermocatalysis Electrocatalysis Photocatalysis Catalytic activity

Mitochondria-targeted fluorescent probe based on vibration-induced emission for real-time monitoring mitophagy-specific viscosity dynamic

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Chinese Chemical Letters 2020年第11期31卷 2897-2902页

作者： Shuangxi Wang Bicong Zhou Na Wang Changmin Yu Naidi Yang jian Chen Qiong Wu Chengwu zhang Lin Li Wei Huang Key Laboratory of Flexible Electronics(KLOFE)&•Institute of Advanced Materials(1AM) Nanjing Tech University(NanjingTech)Nanjing 211800China Shaanxi Institute of Flexible Electronics(SIFE) Northwestern Polytechnical University(NPU)Xi'an 710072China Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Hunan University of Science and TechnologyXiangtan 411201China

Directly monitoring mitophagy-specific viscosity dynamic in living cells is of great significance but remains ***,this study reported a novel mitochondria-targeted fluorescent probe DPACDY based on vibration-induced emission(VIE)for monitoring viscosity changes during mitochondrial *** probe contained N,N’-diphenyl-dihydrodibenzo[a,c]phenazine(DPAC)as the VIE core and two positively charged pyridinium moieties for mitochondria *** the ambient viscosity increased,the vibration of DPAC-DY could be hindered,and subsequently resulting in the enhancement of fluorescence *** vitro and intracellular experiments indicated that the probe DPAC-DY showed highly sensitive response to viscosity due to VIE ***,by virtue of this probe,in situ and real-time visualization of the specific viscosity dynamics during the mitochondrial autophagy process was ***,this work provides a novel strategy for VIE-based viscosity response sensors applied to specific organelles and offers a platform for in-depth study of mitochondrial viscosity-related diseases.

关键词： Vibration-induced emission Autophagy Viscosity Fluorescence detection

Gas drainage from different mine of drainage systems for deep coal areas： optimal placement seams with high gas emissions

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International Journal of Coal science & technology 2015年第1期2卷 84-90页

作者： Ping Lu Ping Li jian Chen Chuijin zhang Junhua Xue Tao Yu Xi'an university of science and technology Xi'an 710054China Anhui jianzhu university Hefei 230022 China Huainan Mining Group Co. Ltd. Huainan 232001 China

The techniques of stress relief mining in low-permeability coal seams and pillarless gob side retained roadway entry using Y-type ventilation and gas drainage systems were developed to control gas outbursts and applied successfully. However, as the mining depth increasing, parts of the gas drainage system are not suitable for mines with high gas emissions. Because larger mining depths cause higher ground stresses, it becomes extremely difficult to maintain long gob side roadways. The greater deformation suffered by the roadway is not favorable lor borehole drilling for continuous gas drainage. To solve these problems, Y-type ventilation and gas drainage systems installed from a roof roadway were designed for drainage optimization. This system was designed based on a gas-enrichment zone analysis developed from mining the 11-2 coal seam in the Zhuji Mine at Huainan, Anhui Province, china. The method of Y-type gas extraction from different mine areas was applied to the panel 1112（1） in the Zhuji Mine. The absolute gas emission rate was up to 116.3 m^3/min with an average flow of 69.1 m^3/min at an average drainage concentration of nearly 85 %. After the Y-type method was adopted, the concentration of gas in the return air was 0.15 %-0.64 %, averaging 0.39 % with a ventilation rate of 2100-2750 m^3/min. The gas management system proved to be efficient, and the effective gas control allowed safe production to continue .

关键词： Gas drainage Different gas sources Y-type ventilation Gob side retained roadway Gas emission Gas-enrichment zone

微生物诱导碳酸钙沉淀技术对花岗岩残积土渗透性的影响规律研究

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交通科学与工程 2024年第3期40卷 1-8,107页

作者：张永杰唐银港欧阳健罗志敏谭长江长沙理工大学土木工程学院湖南长沙410114 中交第二航务工程勘察设计院有限公司湖北武汉430071

用花岗岩残积土填筑的路基具有水稳性差、渗透系数大、易受降雨冲刷等特点。为探讨微生物诱导碳酸钙沉淀(microbial induced calcite precipitation,MICP)技术对花岗岩残积土渗透系数的影响规律及作用机理,测定MICP固化前后重塑花岗岩... 详细信息

用花岗岩残积土填筑的路基具有水稳性差、渗透系数大、易受降雨冲刷等特点。为探讨微生物诱导碳酸钙沉淀(microbial induced calcite precipitation,MICP)技术对花岗岩残积土渗透系数的影响规律及作用机理,测定MICP固化前后重塑花岗岩残积土试样的渗透系数,并对固化前后的试样进行碳酸钙质量分数测定、核磁共振扫描、电镜扫描以及X射线衍射分析。结果表明:1) MICP技术能使花岗岩残积土试样的渗透系数降低两个数量级,且在试验范围内,将各因素按照对渗透系数的影响程度从大到小排列,依次为:胶结液浓度、固化次数、灌注液量。同时,最佳固化条件为灌注液量40 mL、胶结液浓度1.0 mol/L、固化16次。2)固化产生的沉淀填充在花岗岩残积土孔隙中,致使孔隙间的连通性变差,孔隙率下降。总体上,越靠近注入端碳酸钙的质量分数越大,固化效果越好。3)簇状的方解石碳酸钙有效胶结了原本松散的土颗粒,堵塞了土颗粒孔隙间的渗流通道,降低了试样的渗透系数。

关键词：花岗岩残积土渗透系数微生物诱导碳酸钙沉淀技术核磁共振扫描电镜 X射线衍射

NLRP3 Deficiency Attenuates Secondary Degeneration of Visual Cortical Neurons Following Optic Nerve Injury

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Neuroscience Bulletin 2020年第3期36卷 277-288页

作者： Zhou zhang Wenyi Liu Yubin Huang Linlin Luo Xiaofeng Cai Yunjia Liu Liqianyu Ai Jun Yan Sen Lin jian Ye Department of Ophthalmology Research Institute of Surgery and Daping HospitalArmy Medical Center of the People’s Liberation Army(PLA)Army Medical UniversityChongqing 400042China Shenzhen Institutes of Advanced technology Chinese Academy of SciencesShenzhen 518000China Department 1 Research Institute of Surgery and Daping HospitalArmy Medical Center of the PLAArmy Medical UniversityChongqing 400042China

In the visual pathway, optic nerve(ON) injury may cause secondary degeneration of neurons in distal regions, such as the visual cortex. However, the role of the neuroinflammatory response in regulating secondary impairment in the visual cortex after ON injury remains unclear. The NOD-like receptor family pyrin domain containing 3(NLRP3) is an important regulator of neuroinflammation. In this study, we established a mouse model of unilateral ON crush(ONC) and showed that the expression of NLRP3 was significantly increased in the primary visual cortex(V1) as a response to ONC and that the NLRP3 inflammasome was activated in the contralateral V1 1 days–14 days after ONC. Ablation of the NLRP3 gene significantly decreased the trans-neuronal degeneration within 14 days. Visual electrophysiological function was improved in NLRP3-/- mice. Taken together, these findings suggest that NLRP3 is a potential therapeutic target for protecting visual cortical neurons against degeneration after ON injury.

关键词： NLRP3 Visual cortex Optic nerve injury Visual cortical degeneration

Near-diffraction-limited linearly polarized narrow-linewidth random fiber laser with record kilowatt output

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Photonics Research 2017年第4期5卷 350-354页

作者： jianGMING XU LONG HUANG MAN jianG JUN YE PENGFEI MA JINYONG LENG jian WU HANWEI zhang PU ZHOU College of Optoelectronic science and Engineering National University of Defense Technology Hunan Provincial Collaborative Innovation Center of High Power Fiber Laser

In this paper, we propose and experimentally investigate a linearly polarized narrow-linewidth random fiber laser(RFL) operating at 1080 nm and boost the output power to kilowatt level with near-diffraction-limited beam quality using a master oscillation power amplifier. The RFL based on a half-opened cavity, which is composed of a linearly polarized narrow-linewidth fiber Bragg grating and a 500 m piece of polarization-maintained Ge-doped fiber, generates a 0.71 W seed laser with an 88 pm full width at half-maximum(FWHM) linewidth and a 22.5 dB polarization extinction ratio(PER) for power scaling. A two-stage fiber amplifier enhances the seed laser to the maximal 1.01 k W with a PER value of 17 dB and a beam quality of M_x^2=1.15 and M_y^2=1.13. No stimulated Brillouin scattering effect is observed at the ultimate power level, and the FWHM linewidth of the amplified random laser broadens linearly as a function of the output power with a coefficient of about 0.1237 pm∕*** the best of our knowledge, this is the first demonstration of a linearly polarized narrow-linewidth RFL with even kilowatt-level near-diffraction-limited output, and further performance scaling is ongoing.

关键词： line RFL Near-diffraction-limited linearly polarized narrow-linewidth random fiber laser with record kilowatt output

Effect of stabilizing treatment on microstructure and stress rupture properties of phosphorus microalloyed Inconel 706 alloy

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Journal of Iron and Steel Research International 2023年第8期30卷 1613-1621页

作者： Sha zhang Yu-chao Wu Yu Lil Zhong-pei Dail Dan Jia Yan-fei Xu Guang-sheng Zeng Zhi-ming Guo jian Liul College of Mechanical&Electrical Engineering Changsha UniversityChangsha 410022HunanChina Hunan Engineering Research Center of Research and Development of Degradable Materials and Molding technology Changsha UniversityChangsha 410022HunanChina Changsha Kaiple technology Co. Ltd.Changsha 410114HunanChina Institute of Metal Research Chinese Academy of SciencesShenyang 110016LiaoningChina

The microstructure and stress rupture properties of Inconel 706 alloy microalloyed with phosphorus are examined under stabilizing and unstabilizing heat treatment *** was found that applying the stabilizing treatment resulted in a 98% increment in the stress rupture life and a 215% increment in the elongation tested at 650℃/690 MPa for the alloy compared to that under the unstabilizing heat treatment *** stabilizing treatment led to the precipitation of rod-shaped and needle-shaped n phases at the grain *** of γ'-γ" co-precipitates in the grain interior were noncompact form and compact form for the alloy under unstabilizing and stabilizing heat treatment conditions,*** on the microstructure characterizations,the improvement of stress rupture properties by the stabilizing treatment was attributed to the precipitation of n phases at the grain boundaries,which can hinder cracks initiation and propagation and relieve the stress concentration.

关键词： Superalloy Stabilization ηphase γ'-γ"co-precipitate Stress rupture property

基于EWM-MARCOS综合评价模型的巷道支护参数优化研究

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现代矿业 2024年第8期40卷 60-65页

作者：周帆杨志刚张佳男董健潘越浩袁明礼云南磷化集团有限公司云南省昆明市650600 北京科技大学土木与资源工程学院国家磷资源开发利用工程技术研究中心

为应对云南某地下矿山巷道支护返修频繁、成本高的严峻挑战,结合矿山现有支护条件,并全面考虑支护安全、成本和效率等多方面因素,对锚杆长度、钢筋网网度和喷射混凝土厚度的参数进行优化。通过构建的EWM-MARCOS综合评价模型优选出最佳... 详细信息

为应对云南某地下矿山巷道支护返修频繁、成本高的严峻挑战,结合矿山现有支护条件,并全面考虑支护安全、成本和效率等多方面因素,对锚杆长度、钢筋网网度和喷射混凝土厚度的参数进行优化。通过构建的EWM-MARCOS综合评价模型优选出最佳支护参数方案:锚杆长度2.5 m,钢筋网网度150 mm×200 mm,喷射混凝土厚度200 mm。现场实践表明:采用优选的支护方案对巷道进行支护,巷道顶板下沉量降低了3.37 mm,两帮收敛变形降低了3.38 mm,一定程度提高了围岩的稳定性;从经济上来看,考虑到支护返修频率情况下,其支护成本比原方案降低了85.10元/m。因此,采用EWM-MARCOS综合评价模型对支护方案进行优选,可以一定程度优化该矿巷道支护返修频率高、支护成本大的问题。

关键词：支护参数优化 MARCOS多准则决策法 EWM-MARCOS综合评价模型