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Transient multi-physics behavior of an insert high temperature superconducting no-insulation coil in hybrid superconducting magnets with inductive coupling

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Applied Mathematics and Mechanics(English Edition) 2023年第2期44卷 255-272页

作者： xiang KANG Yujin tong Wei WU Xingzhe WANG Key Laboratory of Mechanics on Western Disaster and Environment Ministry of EducationCollege of Civil Engineering and MechanicsKey Laboratory of Special Function Materials and Structure Design of Ministry of EducationLanzhou UniversityLanzhou 730000China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

A transient multi-physics model incorporated with an electromagneto-thermomechanical coupling is developed to capture the multi-field behavior of a single-pancake(SP)insert no-insulation(NI)coil in a hybrid magnet during the charging and discharging *** coupled problem is resolved by means of the finite element method(FEM)for the magneto-thermo-elastic behaviors and the Runge-Kutta method for the transient responses of the electrical circuits of the hybrid superconducting magnet *** results reveal that the transient multi-physics responses of the insert NI coil primarily depend on the charging/discharging procedure of the hybrid ***,a reverse azimuthal current and a compressive hoop stress are induced in the insert NI coil during the charging process,while a forward azimuthal current and a tensile hoop stress are observed during the discharging *** induced voltages in the insert NI coil can drive the currents flowing across the radial turns where the contact resistance ***,it brings forth significant Joule heat,causing a temperature rise and a uniform distribution of this heat in the coil ***,a thermally/mechanically unstable or quenching event may be encountered when a high operating current is flowing in the insert NI *** is numerically predicted that a quick charging will induce a compressive hoop stress which may bring a risk of buckling instability in the coil,while a discharging will *** simulations provide an insight of hybrid superconducting magnets under transient start-up or shutdown phases which are inevitably encountered in practical applications.

关键词： hybrid superconducting magnet high temperature superconducting(HTS)no-insulation(NI)coil inductive coupling multi-physics field thermal stability

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Nanoparticle-filled ABC Star Triblock Copolymers:A Dissipative Particle Dynamics Study

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Chinese Journal of Polymer Science 2023年第9期41卷 1462-1476,I0008页

作者： Miao Yan Ying-tong Zhang xiang-Hong Wang Department of Physics Shanghai Technical Institute of Electronics&InformationShanghai201411China Department of Physics Wenzhou UniversityWenzhou325035China

The phase behavior of nanoparticle-filled ABC star triblock copolymers was investigated by dissipative particle dynamics *** typical structures,the three-color lamella and polygonal tiling structures,were selected to demonstrate the effect of filling the *** showed that the filling effects were obvious on the lamellar structure but not on the tiling structure,where the high concentration of fillers can destroy the lamellar *** dynamic processes of nanoparticle filling were investigated for the lamellar and tiling structures,where three stages can be sorted by analyzing the system energies and chain ***,the mechanical properties were evaluated for the lamellar structures by exploring the interface *** findings can help us understand the potential applications of microstructures based on complex block copolymers and nanoparticle mixtures.

关键词： ABC star triblock copolymer Dynamic process Mechanical properties Nanoparticle

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PVT v2:Improved baselines with Pyramid Vision Transformer

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Computational Visual Media 2022年第3期8卷 415-424页

作者： Wenhai Wang Enze Xie xiang Li Deng-Ping Fan Kaitao Song Ding liang tong Lu Ping Luo Ling Shao Shanghai AI Laboratory Shanghai 200232China Department of Computer Science and Technology NanjingUniversityNanjing 210023China Department of Computer Science the University ofHong KongHong Kong 999077China School of Computer Science and Engineering Nanjing University of Science and TechnologyNanjing 210014China Computer Vision Lab ETH ZurichZurich 8092Switzerland SenseTime Beijing 100080China Inception Institute of Artificial Intelligence Abu DhabiUnited Arab Emirates

Transformers have recently lead to encouraging progress in computer *** this work,we present new baselines by improving the original Pyramid Vision Transformer(PVT v1)by adding three designs:(i)a linear complexity attention layer,(ii)an overlapping patch embedding,and(iii)a convolutional feed-forward *** these modifications,PVT v2 reduces the computational complexity of PVT v1 to linearity and provides significant improvements on fundamental vision tasks such as classification,detection,and *** particular,PVT v2 achieves comparable or better performance than recent work such as the Swin *** hope this work will facilitate state-ofthe-art transformer research in computer *** is available at https://***/whai362/PVT.

关键词： transformers dense prediction image classification object detection semantic segmentation

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Carbazole-based Multiple Resonance Dendrimers with Narrowband Blue Emission for Solution-Processed OLEDs

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Chinese Journal of Polymer Science 2023年第5期41卷 802-810,I0011页

作者： Jia-Peng Liu liang Chen Lei Zhao Cui-Yan tong Shu-Meng Wang Shi-Yang Shao Li-xiang Wang State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Institute of Chemistry Northeast Normal UniversityChangchun 130024China State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228China

Three carbazole-based multiple resonance dendrimers namely D1-BNN,D2-BNN and D3-BNN,are developed for solution-processed narrowband blue organic light-emitting diodes(OLEDs)by introducing the first-,second-,and third-generation carbazole dendrons in periphery of boron,nitrogen-doped polycyclic aromatic hydrocarbon *** from D1-BNN containing first-generation carbazole dendron showing moderate photoluminescent quantum efficiency(PLQY)of 68%in solid state and broadened emission bands with full-width at half maximum(FWHM)increasing from 26 nm to 34 nm upon doping concentration growing from 10 wt%to 40 wt%,D3-BNN with the third-generation carbazole dendron exhibits high PLQY of 92%and weak dependence of photoluminescent spectra on doping concentration,which can remain narrowband emissions with unchanged FWHM of 24 nm at same doping concentration ***-processed OLEDs employing D3-BNN as emitter reveal blue electroluminescence at 477 nm with FWHM of 24 nm,and maximum external quantum efficiency(EQE)of 17.3%which is kept at 14.4%at doping concentration of 40 wt%,much superior than the D1-BNN devices showing maximum EQE of 13.0%that drops to 3.7%at 40 wt%doping concentration.

关键词： Multiple resonance Dendrimer Narrowband Blue emission Solution process

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区块链与现代农业产业链融合:优势、制约与对策

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中国农业科技导报(中英文) 2025年第2期27卷 1-12页

作者：梁晓贺周爱莲谢能付远铜中国农业科学院农业信息研究所农业农村部区块链农业应用重点实验室北京100081 农业农村部农业贸易促进中心北京100125

区块链是支撑农业现代化发展的重要数字技术之一,为农业产业链转型升级创造了新契机。结合区块链的功能特征,深入分析区块链与现代农业产业链契合之处、发展优势与制约条件。现代农业产业链符合区块链应用场景特性,且现代农业产业链的... 详细信息

区块链是支撑农业现代化发展的重要数字技术之一,为农业产业链转型升级创造了新契机。结合区块链的功能特征,深入分析区块链与现代农业产业链契合之处、发展优势与制约条件。现代农业产业链符合区块链应用场景特性,且现代农业产业链的发展需求和区块链的功能具有天然的耦合性,应用区块链技术能有效避免因信息不对称带来的农产品质量安全、智能生产、供应链金融以及产业链治理等多个现代农业产业链关键领域的信息风险问题。由于现代农业产业链本身具有一定的复杂性与不确定性,区块链技术与现代农业产业链融合也面临着技术研发、应用推广和融合模式带来的挑战。未来,要重点在区块链底层技术研发、区块链与现代农业产业链融合支撑体系研制及理论创新上多做努力,切实提升区块链与现代农业产业链的融合效能。

关键词：区块链现代农业产业链融合

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Cyclohexanol optimizes Pt/ionomer interface in fuel cell cathodes

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Science China Chemistry 2024年第2期67卷 417-419页

作者： Lei tong Hai-Wei liang Hefei National Research Center for Physical Sciences at the Microscale Department of ChemistryUniversity of Science and Technology of ChinaHefei230026China

This highlight is based on a recent article published in Nature Catalysis, in which Wei's group [1] from Chongqing University proposes a novel approach to enhance the performance of proton exchange membrane fuel cells(PEMFCs)by adjusting the interface between Pt and ionomer in the cathode catalyst layer. Their strategy involves adding cyclohexanol to the cathode catalyst ink to impede the adsorption of sulfonate groups from the ionomer onto Pt nanoparticles, which results in the release of Pt activity sites and a significant improvement in the mass transport efficiency.

关键词： interface catalyst adding

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不同来源玉米28日龄白羽肉鸡标准回肠氨基酸消化率评定和预测方程的建立

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畜牧兽医学报 2025年第2期56卷 722-736页

作者：杭振宇汪子怡张林邢通赵良高峰南京农业大学动物科技学院/江苏省动物源食品生产与安全保障重点实验室/江苏省肉类生产与加工质量安全控制协同创新中心南京210095

旨在评定10种不同来源玉米化学成分含量,测定28日龄白羽肉鸡对玉米的表观回肠氨基酸消化率(apparent ileal amino acid digestibility,AID AA)和标准回肠氨基酸消化率(standardized ileal amino acid digestibility,SID AA)并建立SID AA预测方程。试验共选取330羽1日龄雄性爱拔益加白羽肉鸡,随机分为11个处理,每处理6重复,每重复5只鸡。饲养至25日龄时,11个处理分别饲喂以10种玉米为唯一蛋白源配制成的10种试验日粮和无氮日粮。在第28日龄时,屠宰肉鸡收集回肠食糜用于测定回肠氨基酸消化率。结果显示,10种不同来源玉米的干物质(DM)、粗蛋白质(CP)、粗脂肪(EE)、粗灰分(Ash)、粗纤维(CF)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、无氮浸出物(NFE)、植酸(PA)、总磷(TP)、总淀粉(TS)含量平均值分别为87.14%、9.04%、3.94%、1.36%、1.97%、10.07%、2.61%、70.82%、0.84%、0.26%和74.56%。10种玉米的各氨基酸含量在0.20%~1.99%之间,脯氨酸(Pro)含量变异系数最大(21.65%),半胱氨酸(Cys)含量变异系数(10.01%)最小。AID AA和SID AA均为苏氨酸(Thr)最低(分别为44.80%和68.15%),亮氨酸(Leu)最高(分别为83.93%和89.56%)。产地对AID AA和SID AA均有显著影响(P<0.05)。本研究建立的玉米在28日龄白羽肉鸡16种SID AA预测方程,其中SID Phe的拟合度最高(R 2=0.962),SID Gly拟合度最低(R 2=0.478)。综上,本研究建立的SID AA预测方程对肉鸡实现玉米高效利用和精准营养具有良好参考价值。

关键词：玉米白羽肉鸡标准回肠氨基酸消化率(SID AA) 预测方程

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Mechanism of stall and surge in a centrifugal compressor with a variable vaned diffuser

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Chinese Journal of Aeronautics 2018年第6期31卷 1222-1231页

作者： xiang XUE tong WANG tongtong ZHANG Bo YANG Gas Turbine Research Institute Shanghai Jiao Tong University

To expand the stable operating range of compressors, understanding the mechanism of flow instability at low flow rates is necessary. In this paper, the mechanism of stall and surge in a centrifugal compressor with a variable vaned diffuser is experimentally investigated, where the diffuser blade setting angle can be adjusted. Many dynamic pressure transducers are mounted on the casing surface of the compressor. From the design condition to surge, dynamic pressure data is recorded throughout the gradual process. According to the signal developing status, the typical modes of compressor instability are defined in detail, such as stall, mild surge, and deep surge. A relatively high-frequency stall wave originates in the impeller and propagates to the diffuser, and finally stimulates a deep surge in the compressor. The compressor behavior during surge differs at different diffuser vane angles. When the diffuser vane angle is adjusted, both the unstable form and the core factor affecting the overall machine stability change. A specific indicator is proposed to measure the instability of each component in a compressor, which can be used to determine the best region for stability extension technologies, such as a holed casing treatment, in different compressor applications.

关键词： Centrifugal compressor Flow instability Stall Surge Vaned diffuser

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新质生产力赋能学校体育高质量发展:内涵特征、逻辑理路与实现路径

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沈阳体育学院学报 2025年第1期44卷 30-37页

作者：梁响玲马艳红籍婷暄相云辽宁师范大学体育学院辽宁大连116029 沈阳体育学院研究生工作部辽宁沈阳110102 沈阳体育学院研究生处辽宁沈阳110102 辽宁工业大学体育教学部辽宁锦州121001

学校体育是推动教育现代化、落实体育强国战略的重要环节,新质生产力以高效率、高效能的特性激活学校体育的多元功能和综合价值,为其高质量发展提供新“蓝海”。采用文献资料法和逻辑分析法,阐释新质生产力赋能学校体育高质量发展的内... 详细信息

学校体育是推动教育现代化、落实体育强国战略的重要环节,新质生产力以高效率、高效能的特性激活学校体育的多元功能和综合价值,为其高质量发展提供新“蓝海”。采用文献资料法和逻辑分析法,阐释新质生产力赋能学校体育高质量发展的内涵特征、逻辑理路和实现路径。研究认为,新质生产力能够促进学校体育创新、协调、绿色、开放、共享发展。其逻辑理路体现在通过科技创新、要素优化、资源开放与跨界流通为学校体育高质量发展提供驱动力、支撑力、拓展力和协同力。其实现路径包括:强化创新驱动,促进学校体育创新发展;优化资源配置,实现学校体育协调发展;构建绿色生态环境,推动学校体育绿色发展;加强内外联动,推动学校体育开放发展;注重合作创新,实现学校体育共享发展。

关键词：新质生产力教育现代化学校体育高质量发展赋能

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Overexpression pattern,function,and clinical value of proteasome 26S subunit non-ATPase 6 in hepatocellular carcinoma

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World Journal of Clinical Oncology 2025年第2期16卷 76-93页

作者： Sheng-Sheng Zhou Yu-Ping Ye Yi Chen Da-tong Zeng Guang-Cai Zheng Rong-Quan He Bang-Teng Chi Lei Wang Qian Lin Qin-Yan Su Yi-Wu Dang Gang Chen Jia-liang Wei Department of Medical Oncology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Clinical Laboratory The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina Department of Surgery Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina

BACKGROUND In recent years,many studies have shown that proteasome 26S subunit non-ATPase 6(PSMD6)plays an important role in the occurrence and development of malignant ***,there are no reports on the evaluation of the potential role of PSMD6 in hepatocellular carcinoma(HCC).AIM To comprehensively evaluate the overexpression pattern and clinical significance of PSMD6 in HCC *** This study integrated PSMD6 mRNA expression profiles from 4672 HCC and 3667 non-HCC tissues,along with immunohistochemical scores from 383 HCC and adjacent tissues,to assess PSMD6 overexpression in *** regularly interspaced short palindromic repeats knockout technology evaluated PSMD6’s essential role in HCC cell *** enrichment analysis explored the molecular mechanism of PSMD6 abnormalities in *** sensitivity analysis and molecular docking analysed the effect of abnormal expression of PSMD6 on the drug sensitivity of HCC *** The results of 41 external and two internal datasets showed that PSMD6 mRNA(SMD=0.26,95%CI:0.09-0.42,P<0.05)and protein(SMD=2.85,95%CI:1.19-4.50,P<0.05)were significantly overexpressed in HCC *** integrated analysis results showed that PSMD6 had a significant overexpression pattern in HCC tissues(SMD=0.40,95%CI:0.15-0.66,P<0.05).PSMD6 knockout inhibited HCC cell growth(chronos scores<-1).Functional enrichment implicated ribosome biogenesis and RNA *** enrichment of signalling pathways such as RNA degradation,ribosomes,and chemical carcinogenesis—reactive oxygen *** sensitivity analysis and a molecular docking model showed that high expression of PSMD6 was associated with the tolerance of HCC cells to drugs such as ML323,sepantronium bromide,and *** PSMD6 effectively distinguished HCC tissues(AUC=0.75,95%CI:0.71-0.79).CONCLUSION This study was the first to discover that PSMD6 was overexpressed in HCC ***6 is essential for the growth of HCC cell

关键词： Hepatocellular carcinoma Proteasome 26S subunit non-ATPase 6 Clustered regularly interspaced short palindromic repeats Ribosome biogenesis RNA splicing

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