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Chemical Scissors Tailored Nano‑Tellurium with High‑Entropy Morphology for Efficient Foam‑Hydrogel‑Based Solar Photothermal Evaporators

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Nano-Micro Letters 2024年第3期16卷 149-168页

作者： Chenyang Xing Zihao Li ziao wang Shaohui Zhang Zhongjian Xie Xi Zhu Zhengchun Peng State Key Laboratory of Radio FrequencyHeterogeneous Integration Shenzhen UniversityShenzhen 518060People’s Republic of China Center for Stretchable Electronics and NanoSensors College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China School of Science and Engineering The Chinese University of Hong KongShenzhenShenzhen 518172People’s Republic of China Institute of Pediatrics Shenzhen Children’s HospitalShenzhen 518038GuangdongPeople’s Republic of China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060People’s Republic of China

The development of tellurium(Te)-based semiconductor nanomaterials for efficient light-to-heat conversion may offer an effective means of harvesting sunlight to address global energy ***,the nanosized Te(nano-Te)materials reported to date suffer from a series of drawbacks,including limited light absorption and a lack of surface ***,we report the preparation of nano-Te by electrochemical exfoliation using an electrolyzable room-temperature ionic ***,cations,and their corresponding electrolytic products acting as chemical scissors can precisely intercalate and functionalize bulk *** resulting nano-Te has high morphological entropy,rich surface functional groups,and broad light *** also constructed foam hydrogels based on poly(vinyl alcohol)/nano-Te,which achieved an evaporation rate and energy efficiency of 4.11 kg m^(−2)h^(−1)and 128%,respectively,under 1 sun ***,the evaporation rate was maintained in the range 2.5-3.0 kg m^(−2)h^(−1)outdoors under 0.5-1.0 sun,providing highly efficient evaporation under low light conditions.

关键词： Tellurium High entropy Electrochemical modification Solar absorption Evaporation rate

A deep learning-based approach for flow field prediction in a dual-mode combustor

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Propulsion and Power Research 2024年第2期13卷 178-193页

作者： Chen Kong ziao wang Fuxu Quan Yunfei Li Juntao Chang Harbin Institute of Technology Harbin 150001China

Accurate acquisition of the distribution offlow parameters inside the supersonic combustor is of great significance for hypersonicflight *** is an interesting attempt to introduce a data-driven model to a supersonic combustor forflowfield *** paper proposes a novel method for predicting theflowfield in a dual-mode *** prediction convolutional neural network with multiple branches is *** investiga-tions for a strut variable geometry combustor have been conducted to obtainflowfield data for training the network as aflowfield prediction *** data are obtained by changing the equivalent ratio,incomingflow condition and geometry of the supersonic *** Mach number distribution can be obtained from the trainedflowfield prediction model using the combustor wall pressure as input with high *** accuracy offlowfield prediction is discussed in several ***,the combustion mode detection is im-plemented on the predictionflowfield.

关键词： Flowfield prediction Deep learning(DL) Convolutional neural networks(CNNs) Data-driven model Dual-mode combustor Variable geometry combustor

Assessment of Tolerance of Different Varieties of Hulless Barley Seedlings to Low-Temperature Stress

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Phyton-International Journal of Experimental Botany 2024年第11期93卷 2755-2766页

作者： ziao wang Likun An Yongmei Cui Yixiong Bai Guangping Du Kunlun Wu Academy of Agricultural and Forestry Sciences Qinghai UniversityXining810016China State Key Laboratory of Plateau Ecology and Agriculture Qinghai UniversityXining810016China Qinghai Key Laboratory of Hulless Barley Genetics and Breeding Xining810016China Qinghai Subcenter of National Hulless Barley Improvement Xining810016China

In this study,we analyzed the agronomic and physiological indicators of the leaves and roots of 60 hulless barley varieties under low-temperature treatment,identiﬁed the crucial indicators that can reﬂect the ability of hulless barley to tolerate low-temperature,and evaluated the ability of different hulless barley varieties to tolerate *** results indicated signiﬁcant differences in the agronomic and physiological indicators of 60 hul-less barley varieties subjected to low-temperature *** of the agronomic indicators signiﬁcantly decreased,whereas most of the physiological indicators signiﬁcantly ***,the magnitude of changes in each agronomic and physiological indicator differed among the varieties.A comprehensive analysis of the agronomic and physiological indicators revealed that the antioxidant enzyme activity,soluble sugar(SSC)and free proline(FPRO)could be used as a crucial indicator to evaluate the low-temperature tolerance of hulless *** with those of agronomic indicators,the physiological indicators of the hulless variety barley better reﬂected its resistance to low-temperature ***ﬁnal comprehensive evaluation showed that Himalaya 22 was the most tolerant to low-temperature,whereas Changmanglan qingke was the most sensitive to *** this study,we assessed various agronomic and physiological indicators of hulless barley plants under low-temperature *** also identiﬁed essential agronomic and physiological indicators for screening low-temperature-tolerant *** research results thus provide a reference for screening low-tem-perature-tolerant hulless barley resources.

关键词： Agronomic and physiological indicators low temperature stress qingke seedling stage

Spin-orbit torque effect in silicon-based sputtered Mn_(3)Sn film

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Chinese Physics B 2024年第10期33卷 394-399页

作者： Sha Lu Dequan Meng Adnan Khan ziao wang Shiwei Chen Shiheng Liang School of Physics Hubei UniversityWuhan 430062China Key Laboratory for Intelligent Sensing System and Security of Ministry of Education Wuhan 430062China

Noncollinear antiferromagnet Mn_(3)Sn has shown remarkable efficiency in charge-spin conversion,a novel magnetic spin Hall effect,and a stable topological antiferromagnetic state,which has resulted in great interest from researchers in the field of spin-orbit *** research has primarily focused on the spin-orbit torque effect of epitaxially grown noncollinear antiferromagnet Mn_(3)Sn ***,this method is not suitable for large-scale industrial *** this study,amorphous Mn_(3)Sn films and Mn_(3)Sn/Py heterostructures were prepared using magnetron sputtering on silicon *** spin-torque ferromagnetic resonance measurement demonstrated that only the conventional spin-orbit torque effect generated by in-plane polarized spin currents existed in the Mn_(3)Sn/Py heterostructure,with a spin-orbit torque efficiency of ***,we prepared the perpendicular magnetized Mn_(3)Sn/CoTb heterostructure based on amorphous Mn_(3)Sn film,where the spin-orbit torque driven perpendicular magnetization switching was achieved with a lower critical switching current density(3.9×10^(7)A/cm^(2))compared to Ta/CoTb *** research reveals the spin-orbit torque effect of amorphous Mn_(3)Sn films and establishes a foundation for further advancement in the practical application of Mn_(3)Sn materials in spintronic devices.

关键词： spintronics noncollinear antiferromagnetism spin-orbit torque

Effect of expansion waves on cowl shock wave and boundary layer interaction in hypersonic inlet

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Propulsion and Power Research 2024年第1期13卷 80-97页

作者： Guangwei Wu ziao wang Teng Shi Zhibin Zhang Weiyu Jiang Fuxu Quan Juntao Chang Harbin Institute of Technology Harbin 150001China Xi’an Aerospace Propulsion Institute Xi’an 710100China Beijing Power Machinery Institute Beijing 100074China

The interaction of cowl shock wave and boundary layer has a crucial effect on the stability,operability and performance of hypersonic *** studies on inhibiting the sep-aration and managing the strength of the interaction of the shock wave and boundary layer with expansion corner have been ***,the expansion waves near the circular arc shoulder to effectively control the interaction and cowl shock arrangement is little ***,the interaction of the cowl shock wave and boundary layer under thefluence of the expansion waves is studied by inviscid and viscous numerical *** results reveal that the expansion waves have an important impact on the interaction between the cowl shock wave and boundary layer and the strength of shock wave,and that there are four types of inter-action processes with the change of the relative impingement positions of cowl shock *** expansion waves have a different influence on the shock wave and boundary layer inter-action at different incident *** the incident point of the cowl shock wave goes far downstream from the end of the circular arc shoulder,the influence of expansion waves is weakened,and the magnitude of separation zone ***,when the expansion waves are applied to the interaction of the cowl shock wave and boundary layer on the circular arc shoulder,the separation can be effectively *** particular,while the expansion waves interact with the shock wave and boundary layer in the back half of the circular arc shoulder,the separation is best *** with the upstream and downstream inci-dent points,the scale of separation area in the optimal control region is reduced by 65.3%at ***,the total pressure recovery coefficientfirst increases and then decreases when the cowl moves from upstream to downstream,and the total pressure recovery coefficient reaches the maximum value of 68.36%at the incident position of cowl shock wave d Z 8.09

关键词： Boundary layer Expansion waves Cowl shock wave Separation Hypersonic inlet Circular arc shoulder Inviscid and viscous numerical simulations

Large Room-Temperature Magnetoresistance in van der Waals Ferromagnet/Semiconductor Junctions

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Chinese Physics Letters 2022年第12期39卷 99-103页

作者： Wenkai Zhu Shihong Xie Hailong Lin Gaojie Zhang Hao Wu Tiangui Hu ziao wang Xiaomin Zhang Jiahan Xu Yujing wang Yuanhui Zheng Faguang Yan Jing Zhang Lixia Zhao Amalia Patanè Jia Zhang Haixin Chang Kaiyou wang State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China School of Physics and Astronomy University of NottinghamNottingham NG72RDUnited Kingdom Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die&Mold TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Wuhan National High Magnetic Field Center Huazhong University of Science and TechnologyWuhan 430074China School of Electrical and Electronic Engineering Tiangong UniversityTianjin 300387China School of Physics Huazhong University of Science and TechnologyWuhan 430074China

A magnetic tunnel junction(MTJ)is the core component in memory technologies,such as the magnetic random-access memory,magnetic sensors and programmable logic *** particular,MTJs based on twodimensional van der Waals(vd W)heterostructures offer unprecedented opportunities for low power consumption and miniaturization of spintronic ***,their operation at room temperature remains a ***,we report a large tunnel magnetoresistance(TMR)of up to 85%at room temperature(T=300 K)in vdW MTJs based on a thin(<10 nm)semiconductor spacer WSe_(2)layer embedded between two Fe_(3)GaTe_(2e)lectrodes with intrinsic above-room-temperature *** TMR in the MTJ increases with decreasing temperature up to 164%at T=10 *** demonstration of TMR in ultra-thin MTJs at room temperature opens a realistic and promising route for next-generation spintronic applications beyond the current state of the art.

关键词： resistance spacer tunnel

Analysis of vibration attenuation characteristics of large thickness carbon fiber composite laminates

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Mechanical Engineering Science 2022年第1期4卷 22-26页

作者： Yi-Qi wang Chaoqun wang Pengxiao YANG ziao wang Tete CAO Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education Dalian University of TechnologyDalian 116024China

The vibration attenuation and damping characteristics of carbon fiber reinforced composite laminates with different thicknesses were investigated by hammering experiments under free boundary constraints in different *** dynamic signal testing and analysis system is applied to collect and analyze the vibration signals of the composite specimens,and combine the self-spectrum analysis and logarithmic decay method to identify the fundamental frequencies of different specimens and calculate the damping ratios of different directions of the *** results showed that the overall stiffness of the specimen increased with the increase of the specimen thickness,and when the thickness of the sample increases from 24mm to 32mm,the fundamental frequency increases by 35.1%,the vibration showed the same vibration attenuation and energy dissipation characteristics in the 0°and 90°directions of the specimen,compared with the specimen in the 45°direction,which was less likely to be excited and had poorer vibration attenuation ability,while the upper and lower surfaces of the same specimen showed slightly different attenuation characteristics to the vibration,the maximum difference of damping capacity between top and bottom surfaces of CFRP plates is about 70%.

关键词： Carbon fiber composite laminates Logarithmic decay method Damping ratio Natural frequency

甲状腺乳头状癌合并桥本甲状腺炎的临床病理特点

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武汉大学学报（医学版） 2024年第9期45卷 1071-1075页

作者：王子澳吴瑞乔武汉科技大学附属天佑医院普通外科湖北武汉430064

目的:探讨甲状腺乳头状癌(PTC)伴桥本甲状腺炎(HT)患者的临床病理特点、治疗及预后。方法:纳入2012年12月—2022年12月期间由武汉科技大学附属天佑医院收治经病理诊断为PTC伴有HT的患者共45例,将其作为合并组,同期随机选取60例单纯PTC... 详细信息

目的:探讨甲状腺乳头状癌(PTC)伴桥本甲状腺炎(HT)患者的临床病理特点、治疗及预后。方法:纳入2012年12月—2022年12月期间由武汉科技大学附属天佑医院收治经病理诊断为PTC伴有HT的患者共45例,将其作为合并组,同期随机选取60例单纯PTC的患者作为对照组,对两组的临床病理特点及预后进行比较。结果:合并组中女性占比64.44%,高于对照组(女性占比33.33%);术前促甲状腺激素(TSH)水平(1.96±0.33)μIU/mL高于对照组(1.53±0.35)μIU/mL,游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)水平低于对照组,血清甲状腺球蛋白抗体(Tg-Ab)与血清甲状腺过氧化物酶抗体(TPO-Ab)升高率、术前彩超微小钙化灶检出率均高于对照组(P0.05)。多因素分析发现,患者合并HT并非导致PTC中央区淋巴结转移的独立危险因素(P>0.05)。结论:PTC合并HT更好发于女性,通常伴随甲状腺机能减退症,合并HT并不会使患者的术前、术中诊断难度增加,对此类患者采用常规手术进行治疗不会增加术后并发症和癌症复发风险。

关键词：甲状腺乳头状癌桥本甲状腺炎临床特点预后

基于贝叶斯机器学习对中子诱发^(235)U裂变的产额-能量关系的研究

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原子能科学技术 2022年第5期56卷 937-943页

作者：乔春源裴俊琛王子澳陈永静北京大学物理学院核物理与核技术重点实验室北京100871 中国原子能科学研究院核数据重点实验室中国核数据中心北京102413

核裂变碎片产额是核能发展和核技术应用领域的重要基础数据,但在实验和理论上获得精确且完整的能量依赖的裂变产额到目前为止都非常困难。本文提出采用贝叶斯机器学习方法对所有收集到的中子诱发^(235)U裂变产额实验数据进行了数据融合... 详细信息

核裂变碎片产额是核能发展和核技术应用领域的重要基础数据,但在实验和理论上获得精确且完整的能量依赖的裂变产额到目前为止都非常困难。本文提出采用贝叶斯机器学习方法对所有收集到的中子诱发^(235)U裂变产额实验数据进行了数据融合学习和评价。基于该评价方法对关键裂变碎片的产额-能量关系进行推断,并得到了二维的碎片累积产额分布随入射中子能量的变化关系。所得的二维产额分布能合理地反映裂变模式随能量增加的演化,但目前结果的不确定度较大,有待进一步改进。

关键词：核裂变贝叶斯机器学习累积产额产额-能量关系

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