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深度学习预测超声影像中原发性乳腺癌的淋巴结转移

第三届摩擦疲劳学国际会议

作者： J.S.ZHANG x.l.wu W. Z. QI x.H. GU C.H.ZHANG Zhengzhou Research Institute of Mechanical Engineering 450052 Zhengzhou China JiaoZao AES WanFANG Power Company limited China

＜正＞In this paper, the fatigue test results of two different types of hardened gears were reported. The tests were carried out with two kinds of gear oils on the FZG gear test machine. The surface fatigue features and the anti-wear effect of oils were carefully studied by means of scanning electron microscope （SEM）, x-ray photoelectron spectroscopy （xPS）, auger electron spectroscopy （AES） and scanning auger microprobe （SAM）.

关键词： Gear Fatigue test Pitting Surface analysis

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国际医学放射学杂志 2020年第2期 231-231页

作者： l.Q.Zhou x.l.wu S.Y.Huang G.G.wu H.R.Ye Q.Wei 朱羽苑 Department of Medical Ultrasound Tongji HospitalTongji Medical College Huazhong University of Science and Technology

深度学习(Dl)算法在图像识别中的显著效果受到广泛关注。Dl模型能自动对复杂的医学图像特征进行定量评估,并以更高的效能提高诊断准确性。目的在临床淋巴结

关键词：原发性乳腺癌淋巴结转移淋巴结阴性深度学习

前交叉韧带损伤病人髌股关节不稳定的CT危险因素特征

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国际医学放射学杂志 2024年第2期 249-249页

作者： J.B.Chen x.l.wu J.Y.Guo x.Y.Zhang J.Z.Zhao G.M.xie 潘红利

摘要目的低估前交叉韧带（ACl）损伤病人伴发髌股关节不稳已引起广泛关注。然而，目前未充分认识复合损伤的特点。该研究旨在描述复合损伤的特征，并确定影像学危

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Effect of perforation on flow past a conic cylinder at Re =100: wavy vortex and sign laws

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Acta Mechanica Sinica 2018年第5期34卷 812-829页

作者： l.M.lin x.F.Zhong Y.x.wu Key laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering Sciences University of Chinese Academy of SciencesBeijing 100049China

In order to find the intrinsic physical mechanism of the original Kármán vortex wavily distorted across the span due to the introduction of three-dimensional (3-D) geometric disturbances,a flow past a peak-perforated conic shroud is numerically simulated at a Reynolds number of *** on previous work by Meiburg and lasheras (1988),the streamwise and vertical interactions with spanwise vortices are introduced and *** vortex-shedding patterns in the near wake for different flow regimes are reinspected and illustrated from the view of these two ***,in regime Ⅰ,spanwise vortices are a little distorted due to the weak *** in regime Ⅱ,spanwise vortices,even though curved obviously,are still shed synchronously with moderate streamwise and vertical *** in regime Ⅲ,violently wavy spanwise vortices in some vortex-shedding patterns,typically an Ω-type vortex,are mainly attributed to the strong vertical interactions,while other cases,such as multiple vortex-shedding patterns in sub-regime Ⅲ-D,are resulted from complex streamwise and vertical interactions.A special phenomenon,spacial distribution of streamwise and vertical components of vorticity with specific signs in the near wake,is analyzed based on two models of streamwise and vertical vortices in explaining physical reasons of top and bottom shear layers wavily varied across the *** these two models and above two interactions are *** two sign laws are summarized:the first sign law for streamwise and vertical components of vorticity is positive in the upper shear layer,but negative in the lower shear layer,while the second sign law for three vorticity components is always negative in the wake.

关键词： Vortex-shedding pattern Flow control Vortex dynamics Conic disturbance Perforation Sign law

Effect of perforation on flow past a conic cylinder at Re=100:vortex-shedding pattern and force history

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Acta Mechanica Sinica 2018年第2期34卷 238-256页

作者： l.M.lin x.F.Zhong Y.x.wu Key laboratory for Mechanics in Fluid Solid Coupling Systems Institute of Mechanics Chinese Academy of Sciences

The flow past a circular-section cylinder with a conic shroud perforated with four holes at the peak was simulated numerically at Re = 100, considering two factors, *** angle of attack and the diameter of the holes. The effects of the perforated conic shroud on the vortex shedding pattern in the near wake was mainly investigated, as well as the time history of the drag and lift forces. In the investigated parameter space, three flow regimes were generally identified, corresponding to weak, moderate, and strong disturbance *** regime I, the wake can mainly be described by alternately shedding Kármán or Kármán-like vortices. In regime II, the spanwise vortices are obviously disturbed along the span due to the appearance of additional vorticity components and their interactions with the spanwise vortices, but still shed in synchronization along the spanwise direction. In regime III,the typical Kármán vortices partially or totally disappear,and some new vortex shedding patterns appear, such as-type, obliquely shedding, and crossed spanwise vortices with opposite sign. Corresponding to these complex vortex shedding patterns in the near wake, the fluid forces no longer oscillate regularly at a single vortex shedding frequency, but rather with a lower modulation frequency and multiple amplitudes. An overview of these flow regimes is presented.

关键词： Vortex shedding pattern Fluid forces Flow control Conical shroud Perforation

High-magnetic-field induced charge order in high-T_c cuprate superconductors

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Chinese Physics B 2019年第11期28卷 25-42页

作者： l x Zheng J li T wu Hefei National laboratory for Physical Science at Microscale University of Science and Technology of ChinaHefei 230026China Key laboratory of Strongly-coupled Quantum Matter Physics University of Science and Technology of ChinaChinese Academy of SciencesHefei 230026China CAS Center for Excellence in Superconducting Electronics(CENSE) Shanghai 200050China CAS Center for Excellence in Quantum Information and Quantum Physics Hefei 230026China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

In the last few years, charge order and its entanglement with superconductivity are under hot debate in high-Tc community due to the new progress on charge order in high-Tc cuprate superconductors YBa2Cu3O6+x. Here, we will briefly introduce the experimental status of this field and mainly focus on the experimental progress of high-field nuclear magnetic resonance(NMR) study on charge order in YBa2Cu3O6+x. The pioneering high-field NMR work in YBa2Cu3O6+x sets a new stage for studying charge order which has become a ubiquitous phenomenon in high-Tc cuprate superconductors.

关键词： charge order cuprates nuclear magnetic resonance YBa2Cu3O6+x superconductors competing order

Transarterial chemoembolization combined with lenvatinib and sintilimab vs lenvatinib alone in intermediate-advanced hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 52-61页

作者： Fei-Da wu Hai-Feng Zhou Wei Yang Di Zhu Bi-Fei wu Hai-Bin Shi Sheng liu Wei-Zhong Zhou Department of Interventional Radiology The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina

BACKGROUND Hepatocellular carcinoma(HCC)is the most common form of liver cancer that has limited treatment options and a poor *** chemoembolization(TACE)is the first-line treatment for intermediate-stage HCC but can induce tumour hypoxia,thereby promoting *** studies suggested that combining TACE with anti-angiogenic therapies and immunotherapy might im-prove ***,a tyrosine kinase inhibitor,has demonstrated superior outcomes compared to sorafenib,while immune checkpoint inhibitors such as sintilimab show potential when combined with ***,the efficacy and safety of TACE combined with lenvatinib and sintilimab(TACE+Sl)compared to TACE with lenvatinib alone(TACE+l)in patients with intermediate-ad-vanced HCC has not yet been *** To evaluate the efficacy and safety of TACE+Sl therapy in comparison to TACE+l therapy in patients with intermediate-advanced *** A retrospective analysis was performed on patients with intermediate-advanced HCC who received TACE plus lenvatinib with or without sintilimab between September 2019 and September *** characteristics were compared,and propensity score matching was *** survival(OS),progression-free survival(PFS),and objective response rate(ORR)were evaluated between the two groups,and adverse events were *** The study included 57 patients,with 30 in the TACE+Sl group and 27 in the TACE+l *** TACE+Sl group demonstrated significantly improved median PFS and OS compared to the TACE+l group(PFS:14.1 months vs 9.6 months,P=0.016;OS:22.4 months vs 14.1 months,P=0.039),along with a higher ORR(70.0%vs 55.6%).After propensity score matching,30 patients were included,with the TACE+Sl group again showing longer median PFS and a trend toward improved OS(PFS:14.6 months vs 9.2 months,P=0.012;OS:23.9 months vs 16.3 months,P=0.063),and a higher ORR(73.3%vs 53.3%).No severe adverse events were *** TACE+Sl demonstrat

关键词： Hepatocellular carcinoma Transarterial chemoembolization Sintilimab lenvatinib Immunotherapy Programmed cell death 1 Prognosis

Microstructure and Mechanical Properties of Dissimilar Double-Side Friction Stir Welds Between Medium-Thick 6061-T6 Aluminum and Pure Copper Plates

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Acta Metallurgica Sinica(English letters) 2022年第12期35卷 2027-2046页

作者： J.x.Tang l.Shi C.S.wu M.x.wu S.Gao MOE Key lab for liquid-Solid Structure Evolution and Materials Processing Institute of Materials JoiningShandong UniversityJinan 250061China State Grid Henan Electric Power Research Institute Zhengzhou 450052China School of Mechanical Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan250353China

It is difficult to achieve Al/Cu dissimilar welds with good mechanical properties for medium-thick plates due to the inherent high heat generation rate at the shoulder-workpiece contact interface in conventional friction stir ***,doubleside friction stir welding is innovatively applied to join 12-mm medium-thick 6061-T6 aluminum alloy and pure copper dissimilar plates,and the effect of welding speeds on the joint microstructure and mechanical properties of Al/Cu welds is systematically *** reveals that a sound Al/Cu joint without macroscopic defects can be achieved when the welding speed is lower than 180 mm/min,while a nonuniform relatively thick intermetallic compound(IMC)layer is formed at the Al/Cu interface,resulting in lots of local microcracks within the first-pass weld under the plunging force of the tool during friction stir welding of the second-pass,and seriously deteriorates the mechanical properties of the *** the increase of welding speed to more than 300 mm/min void defects appear in the joint,but the joint properties are still better than the welds performed at low welding speed conditions since a continuous uniform thin IMCs layer is formed at the Al/Cu *** maximum tensile strength and elongation of Al/Cu weld are,respectively,135.11 MPa and 6.06%,which is achieved at the welding speed of 400 mm/*** addition,due to the influence of welding distortion of the first-pass weld,the secondpass weld is more prone to form void defects than the first-pass weld when the same plunge depth is applied on both *** double-side friction stir welding is proved to be a good method for dissimilar welding of medium-thick Al/Cu plates.

关键词： Double-side friction stir welding Medium-thick plate Dissimilar welding Microstructures Intermetallic compounds Mechanical properties

Stability analyses of the mass abrasive projectile high-speed penetrating into a concrete target Part III: Terminal ballistic trajectory analyses

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Acta Mechanica Sinica 2015年第4期31卷 558-569页

作者： H.wu x.W.Chen Q.Fang x.Z.Kong l.l.He Institute of Systems Engineering China Academy of Engineering Physics State Key laboratory for Disaster Prevention & Mitigation of Explosion & Impact PLA University of Science and Technology

During the high-speed penetration of projectiles into concrete targets （the impact velocity ranges from 1.0 to 1.5 km/s）, important factors such as the incident oblique and attacking angles, as well as the asymmetric abrasions of the projectile nose induced by the target-projectile interactions, may lead to obvious deviation of the terminal ballistic tra- jectory and reduction of the penetration efficiency. Based on the engineering model for the mass loss and nose-blunting of ogive-nosed projectiles established, by using the Differ- ential Area Force law （DAFl） method and semi-empirical resistance function, a finite differential approach was pro- grammed （PENTRA2D） for predicting the terminal ballistic trajectory of mass abrasive high-speed projectiles penetrating into concrete targets. It accounts for the free-surface effects on the drag force acting on the projectile, which are attributed to the oblique and attacking angles, as well as the asymmetric nose abrasion of the projectile. Its validation on the prediction of curvilinear trajectories of non-normal high-speed pene- trators into concrete targets is verified by comparison with available test data. Relevant parametric influential analyses show that the most influential factor for the stability of ter- minal ballistic trajectories is the attacking angle, followed by the oblique angle, the discrepancy of asymmetric nose abrasion, and the location of mass center of projectile. The terminal ballistic trajectory deviations are aggravated as the above four parameters increase.

关键词： Projectile Penetration Concrete Massabrasion Terminal ballistic trajectory