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Journal of Thermal Science 2024年第2期33卷 564-577页

作者： w.ng zhibin LI Zilong JIA Lisi DIng Bin CHEN Ying School of Materials and Energy Guangdong University of TechnologyGuangzhou510006China Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter Guangzhou510006China College of New Energy China University of Petroleum(East China)Qingdao266580China

Microencapsulation phase change material slurry(MEPCMS) becomes a potential working fluid for cooling high energy density miniaturized components,thanks to the latent heat absorption of particles in the heat transfer *** this work,the Discrete Phase Model(DPM) based on the Euler-Lagrangian method is used to numerically investigate the convective heat transfer characteristics of MEPCMS flow.ng through a rectangular minichannel with constant heat *** results show that particles of MEPCMS are mainly subjected to drag force during the *** so,they can migrate from the high-temperature region to the low-temperature region driven by the thermophoretic force,affecting the particle distribution and phase change ***,the Nux of the MEPCMS fluctuates due to particle phase change with varying specific heat ***,the value increases first,then decreases,and eventually increases again until it approaches the fully developed value of the pure base fluid as the particles gradually ***,the heat transfer performance of the MEPCMS is influenced by the combination of fluid inlet temperature fluid inlet velocity(v),and mass concentration(c_(m)) of MEPCM *** result shows that the maximum reduction of the maximum bottom wall temperature difference(ΔT_(w)) is 23.98% at T_(in)=293.15 K,v=0.15 m·s^(-1),c_(m)=10%.

关键词： Microencapsulated Phase Change Material Slurry(MPCMS) Discrete Phase Model(DPM) particle-fluid interaction force minichannel heat sink thermophoresis

Monolithic integrated optoelectronic chip for vector force detection

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Microsystems & Nanoengineering 2024年第3期10卷 245-257页

作者： Jiansong Feng Zhongqi w.ng Mengyuan Zhanghu Xu Zhang Yong Shen Jing Yang zhibin Li Bin Chen Taihong w.ng Xiaolong Chen Zhaojun Liu Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Electrical and Electronic Engineering The University of Hong KongHong KongChina

Sensors with a small footprint and real-time detection capabilities are crucial in robotic surgery and smart wearable *** device footprint while maintaining its high performance is a major challenge and a significant limitation to their ***,we proposed a monolithic integrated micro-scale sensor,which can be used for vector force *** sensor combines an optical source,four photodetectors,and a hemispherical silicone elastomer component on the same sapphire-based AlGaInP *** chip-scale optical coupling is achieved by employing the laser lift-off techniques and the flip-chip bonding to a processed sapphire *** hemispherical structure device can detect normal and shear forces as low as 1mN within a measurement range of 0–220 mN for normal force and 0–15 mN for shear *** packaging,the sensor is capable of detecting forces over a broader range,with measurement capabilities extending up to 10 N for normal forces and 0.2 N for shear *** has an accuracy of detecting a minimum normal force of 25 mN and a minimum shear force of 20 ***,this sensor has been validated to have a compact footprint of approximately 1.5 mm^(2),while maintaining high real-time *** also demonstrate its promising potential by combining this sensor with fine surface texture perception in the fields of compact medical robot interaction and wearable devices.

关键词： robot force smart

Genetic dissection and validation of a major QTL for grain weight on chromosome 3B in bread wheat(Triticum aestivum L.)

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Journal of Integrative Agriculture 2024年第1期23卷 77-92页

作者： Simin Liao zhibin Xu Xiaoli Fan Qiang Zhou Xiaofeng Liu Cheng Jiang Liangen Chen Dian Lin Bo Feng Tao w.ng Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China The Innovative Academy of Seed Design Chinese Academy of SciencesBeijing 100101China

Grain weight is one of the key components of wheat(Triticum aestivum L.)*** manipulation of grain weight is an efficient approach for improving yield potential in breeding programs.A recombinant inbred line(RIL)population derived from a cross between w7268 and Chuanyu 12(CY12)was employed to detect quantitative trait loci(QTLs)for thousand-grain weight(TGw),grain length(GL),grain width(Gw),and the ratio of grain length to width(GLw)in six *** major QTLs,***-2D,***-2D,***-3B,***-4B.1,***-2D.1,***-2D.1 and ***-3B.1,were consistently identified in at least four environments and the best linear unbiased estimation(BLUE)datasets,and they explained 2.61 to 34.85%of the phenotypic *** interactions were detected between the two major TGw QTLs and three major Gw *** addition,***-3B.1 and ***-3B were co-located,and the improved TGw at this locus was contributed by *** other loci,***-3B.1/***-3B had no effect on grain number per spike(GNS).They were further validated in advanced lines using Kompetitive Allele Specific PCR(KASP)markers,and a comparison analysis indicated that ***-3B.1/***-3B is likely a novel *** haplotypes were identified in the region of this QTL and their distribution frequencies varied between the landraces and *** to gene annotation,spatial expression patterns,ortholog analysis and sequence variation,the candidate gene of ***-3B.1/***-3B was ***,the major QTLs and KASP markers reported here provide valuable information for elucidating the genetic architecture of grain weight and for molecular marker-assisted breeding in grain yield improvement.

关键词： thousand-grain weight QTL mapping haplotype analysis candidate gene

Fli1 acts in parallel with Pu.1 to control macrophage and neutrophil fate in zebrafish

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Journal of Genetics and Genomics 2024年第3期51卷 359-362页

作者： Ao Zhang Jingao Lu Shachuan Feng Huapeng Yu Tao Yu Shizheng Zhao Kemin Chen zhibin Huang Jin Xu Jianan Y.Qu Zilong wen Division of Life Science Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Division of Cell Developmental and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhouGuangdong 510006China Department of Immunology and Microbiology School of Life ScienceSouthern University of Science and TechnologyShenzhenGuangdong 518055China Biomedical Research Institute Shenzhen Peking University-Hong Kong University of Science and Technology Medical CenterShenzhenGuangdong 518036China Department of Electronic and Computer Engineering Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Greater Bay Biomedical Innocenter Shenzhen Bay LaboratoryShenzhenGuangdong 518067China

Macrophages and neutrophils are key components of myeloid cells and play critical roles in innate immune responses,organ formation,and tissue *** integrity of their functions heavily relies on the generation of a proper number of mature macrophages and neutrophils through embryonic and adult *** mammalian adult myelopoiesis,oligopotent common myeloid progenitors(CMPs)are known to be the earliest myeloid progenitors,which give rise to granulocyte-macrophage progenitors(GMPs),subsequently differentiate into unipotent neutrophil and macrophage precursors,and finally,mature macrophages and neutrophils(Orkin and Zon,2008).In contrast,the ontogeny of embryonic myelopoiesis and the mechanism underlying the formation of macrophages and neutrophils remainless understood.

关键词： fish macrophage homeostasis

Effect of Ni content on the weldability of middle-chromium hyperpure ferritic stainless steels 00Cr21Ti

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Baosteel Technical Research 2024年第2期18卷 19-26页

作者： ZHAng Xinbao w.ng zhibin SUN Mingshan YAN Zhifeng w.ng wenxian R&D Center for Stainless Steel Research InstituteChina Baowu Steel Group CorporationTaiyuan 030003China School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China

Excellent weldability substantially contributes to the intrinsic quality of steels,while appropriate chemical composition plays a primary role in the essential weldability of *** poor weldability of ferritic stainless steels could be improved through modification with minor alloy elements while minimally increasing the ***,studying the effect of minor alloy elements on the weldability of steels is of considerable *** this study,several steels of middle-chromium hyperpure ferritic stainless 00Cr21Ti with different Ni content(0.3%,0.5%,0.8%,and 1.0%)were developed,and their weldabilities of butt joint samples welded using the metal inert gas welding process,including the influence of welded joints on the microstructure,tensile performance,corrosion resistance,and fatigue property,were *** show that the steels with w(Ni)≥0.8%exhibit excellent mechanical properties compared with those with low-Ni content steels,further,their impact toughness at normal atmospheric temperature meets the industrial application standard and the fatigue property is similar to that of 304 austenitic stainless ***,results show that the corrosion resistance of all the samples is almost at the same *** results acquired in this study are supposed to be useful for the optimization of the chemical composition of stainless steels aiming to improve weldability.

关键词： 00Cr21Ti ferritic stainless steel SUS443 welded joint mechanical properties fatigue property Ni content

Cobalt-embedded 3D conductive honeycomb architecture to enable high-sulphur-loading Li-S batteries under lean electrolyte conditions

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Nano Research 2022年第9期15卷 8091-8100页

作者： Hui Pan zhibin Cheng Jan Fransaer Jiangshui Luo Michael wübbenhorst Laboratory for Soft Matter and Biophysics Department of Physics and AstronomyKU LeuvenLeuven 3001Belgium Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007China Department of Materials Engineering KU LeuvenLeuven 3001Belgium Lab of Electrolytes and Phase Change Materials College of Materials Science and EngineeringSichuan UniversityChengdu 610065China

High sulphur loading and lean electrolyte conditions are important to achieve the high theoretical energy density of lithiumsulphur(Li-S)***,serious problems such as low sulphur utilization and fast capacity fade are typically experienced under low electrolyte/sulphur(E/S)ratios and high sulphur loading *** address these issues,a cobaltcontaining three-dimensional conductive honeycomb(Co@N-HPC)is proposed in this work as a material for sulphur *** good electrical conductivity and high density of catalytic sites of(Co@N-HPC)allow fast redox kinetics of lithium polysulfide(LiPS)in high-sulphur-loading *** addition,the hierarchical structure and good wettability by the electrolyte of Co@NHPC facilitates electrolyte penetration and LiPS conversion,leading to a high utilization of sulphur under lean electrolyte ***,at a current density of 0.2 C,a volumetric capacity of 1,410 mAh·cm^(−3)was attained with a sulphur loading of 5.1 mg·cm^(−2)and an E/S ratio of 5μL·mg^(−1).This work provides ideas for the development of lean electrolyte Li-S batteries with a high sulphur loading.

关键词： honeycomb architecture cobalt nanoparticles high sulphur loading lean electrolyte lithium-sulphur battery

初始含水率非均匀分布的无限边坡稳定性计算模型研究

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合肥工业大学学报（自然科学版） 2024年第5期47卷 690-695页

作者：吴书晨侯超群孙志彬合肥工业大学汽车与交通工程学院安徽合肥230009

降雨入渗模型与边坡稳定性分析相结合是分析降雨诱发浅层滑坡的有效方法。文章考虑初始含水率非均匀分布对稳定性的影响,结合已有文献提出一个初始含水率呈线性分布的无限边坡稳定性简化计算模型,并运用Mein-Larson入渗模型及数值模拟... 详细信息

降雨入渗模型与边坡稳定性分析相结合是分析降雨诱发浅层滑坡的有效方法。文章考虑初始含水率非均匀分布对稳定性的影响,结合已有文献提出一个初始含水率呈线性分布的无限边坡稳定性简化计算模型,并运用Mein-Larson入渗模型及数值模拟方法验证该模型的可行性和计算精度;讨论同一土质和坡度条件下,降雨强度p、含水率线性变化率k以及地表初始含水率θ0对模型计算精度的影响。结果表明:简化模型能够较为准确地描述恒定降雨入渗过程,并且适用于降雨强度大于土壤入渗能力时的无限边坡稳定性分析计算;采用简化模型进行稳定性计算,p相同时,k值的变化对入渗深度Z w的计算精度影响较为显著,而对安全系数F s计算精度的影响总体上不明显;对于给定土质和坡度的无限边坡,当θ0值取0.15、k值取0.07时,采用该模型计算Z w的精度最高;与严格的数值模拟方法相比,该文提出的简化模型公式较为简单、计算用时较少,计算效率得以提高。研究结果为降雨型滑坡的稳定性分析提供了借鉴和参考。

关键词：降雨入渗初始含水率浅层滑坡无限边坡边坡稳定性

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碳点在金属腐蚀防护领域的研究进展

表面技术 2024年第3期53卷 75-87页

作者：王金科吴尚浩陈质彬王悦马菱薇张达威北京科技大学新材料技术研究院北京100083

综述了碳点的合成路径、改性方法及其在腐蚀防护领域的应用,重点阐述了碳点作为缓蚀剂及其在自修复、自预警等智能防腐涂层方向应用的国内外最新研究进展。首先,分析和探讨了杂原子掺杂型、有机分子修饰型以及生物质衍生型碳点缓蚀剂的... 详细信息

综述了碳点的合成路径、改性方法及其在腐蚀防护领域的应用,重点阐述了碳点作为缓蚀剂及其在自修复、自预警等智能防腐涂层方向应用的国内外最新研究进展。首先,分析和探讨了杂原子掺杂型、有机分子修饰型以及生物质衍生型碳点缓蚀剂的缓蚀机理、优势及不足。其次,介绍了基于碳点的本征和外援自修复涂层、腐蚀预警涂层的设计思路及自修复、自预警机制。最后,提出了碳点在缓蚀剂和智能防腐涂层中应用所存在的问题,并对其未来发展前景进行了讨论。未来应秉持绿色、高效理念,进一步优化碳点的制备工艺,深入研究其在缓蚀、涂层自修复及腐蚀预警中的关键作用,以期早日实现工业应用。

关键词：碳点缓蚀剂涂层自修复自预警

自噬在失血性休克小鼠急性肺损伤中的生物学作用及相关机制

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中华危重病急救医学 2024年第8期36卷 848-852页

作者：林雪容王佳张志斌朱丽娟河北北方学院附属第一医院急诊科河北张家口075000

目的探讨自噬在失血性休克小鼠急性肺损伤(ALI)中的生物学作用及机制。方法按随机数字表法将野生型雄性C57BL/6小鼠分为对照组、ALI组、雷帕霉素组、3-甲基腺嘌呤(3-MA)组,每组8只;将自噬微管相关蛋白轻链3(LC3)基因敲除的C57BL/6小鼠分... 详细信息

目的探讨自噬在失血性休克小鼠急性肺损伤(ALI)中的生物学作用及机制。方法按随机数字表法将野生型雄性C57BL/6小鼠分为对照组、ALI组、雷帕霉素组、3-甲基腺嘌呤(3-MA)组,每组8只;将自噬微管相关蛋白轻链3(LC3)基因敲除的C57BL/6小鼠分为LC3敲除组和LC3敲除+ALI组,每组8只。对照组、ALI组、LC3敲除组、LC3敲除+ALI组腹腔注射2 mL/kg生理盐水,雷帕霉素组腹腔注射3 mg/kg自噬激活剂雷帕霉素,3-MA组腹腔注射15 mg/kg自噬抑制剂3-MA,均连续给药3 d,末次给药后2 h制备失血性休克致ALI模型。制模后24 h处死小鼠,计算肺指数;苏木素-伊红(HE)染色观察肺组织病理改变并计算肺损伤评分;蛋白质免疫印迹试验(western blotting)检测肺组织自噬基因LC3-Ⅱ/LC3-Ⅰ、Beclin-1的表达;按试剂盒步骤检测肺组织肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、丙二醛(MDA)含量。结果与对照组比较,ALI组肺组织结构破坏、渗出增多,肺指数、肺损伤评分、肺组织中LC3-Ⅱ/LC3-Ⅰ、Beclin-1表达及TNF-α、IL-6、MDA含量均明显升高。与ALI组比较,雷帕霉素组肺组织结构破坏减轻、渗出减少,肺指数、肺损伤评分及肺组织中TNF-α、IL-6、MDA含量降低,肺组织中LC3-Ⅱ/LC3-Ⅰ、Beclin-1表达升高〔肺指数:(7.56±0.39)%比(9.12±0.59)%,肺损伤评分(分):3.04±0.58比9.32±2.14,TNF-α(ng/mg):1.85±0.32比3.51±0.62,IL-6(ng/mg):1.61±0.32比2.52±0.44,MDA(nmol/mg):1.03±0.16比1.88±0.24,LC3-Ⅱ/LC3-Ⅰ:1.21±0.12比0.39±0.05,Beclin-1/β-actin:1.10±0.12比0.58±0.06,均Png/mg):4.77±0.71比3.51±0.62,IL-6(ng/mg):3.44±0.52比2.52±0.44,MDA(nmol/mg):2.71±0.42比1.88±0.24,LC3-Ⅱ/LC3-Ⅰ:0.25±0.04比0.39±0.05,Beclin-1/β-actin:0.21±0.03比0.58±0.06,均Png/mg):4.85±0.72比3.51±0.62,IL-6(ng/mg):3.28±0.51比2.52±0.44,MDA(nmol/mg):2.75±0.41比1.88±0.24,均P<0.05〕。结论自噬在失血性休克小鼠ALI中起保护作用,相关的分子机制是抑制炎症反应和氧化应激反应。

关键词：失血性休克急性肺损伤自噬炎症反应氧化应激

Cell-protecting regeneration from anode carbon deposition using in situ produced oxygen and steam:A combined experimental and theoretical study

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Journal of Materials Science & Technology 2018年第12期34卷 2375-2383页

作者： Zongying Han zhibin Yang Minfang Han Union Research Center of Fuel Cell School of Chemical and Environmental EngineeringChina University of Mining and Technology Department of Energy and Power Engineering Tsinghua University College of Chemical and Environmental Engineering Shandong University of Science and Technology

Carbon deposition is a primary concern during the operation of solid oxide fuel cells（SOFCs） fueled with hydrocarbon fuels, leading to cell degradation and even cell damage. Carbon elimination is expected to be a promising approach to prolong cell life. This work reports on a combined experimental and theoretical investigation of cell regeneration from anode carbon deposition of tubular SOFCs fabricated by phase-inversion and co-sintering techniques. The as-prepared cell exhibits a maximum power density of 0.20 w cm;at 800 ℃ fueling with wet CH;, but fails to stable operation due to severe carbon *** on thermodynamic predictions, a successive cell-protecting regeneration process is proposed to eliminate deposited carbon without oxidizing Ni catalysts, during which CH;and H;fuels are provided in circulation. Through a total of 35 cycling tests, cell performance can always successfully restore to the initial *** possible carbon elimination mechanism is investigated in detail based on thermodynamic and first-principle calculations. The feasibility of carbon elimination using in situ produced oxygen or steam through electrochemical reaction has been revealed, providing a novel continuous operation mode for hydrocarbon-based SOFCs.

关键词： Solid oxide fuel cells Carbon deposition Cell regeneration Carbon elimination First-principle