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TACE联合微波消融治疗肝尾状叶肿瘤1例

介入放射学杂志 2018年第6期27卷 590-591页

作者：柳昂顾玉明鹿皎徐州医科大学附属医院介入放射科江苏221000

临床资料患者男,59岁。因“上腹不适1个月”入院。患者既往乙肝病史25年,抗病毒治疗5年余。入院后上腹增强CT提示肝尾状叶占位（肿瘤可能性大）,见图1（1）,大小约38 mm×36 mm,肝硬化伴少量腹水。AFP：〉2 000 ng/m L,PIVKA-Ⅱ：2 732.... 详细信息

临床资料患者男,59岁。因“上腹不适1个月”入院。患者既往乙肝病史25年,抗病毒治疗5年余。入院后上腹增强CT提示肝尾状叶占位（肿瘤可能性大）,见图1（1）,大小约38 mm×36 mm,肝硬化伴少量腹水。AFP：〉2 000 ng/m L,PIVKA-Ⅱ：2 732.00 m Au/m L,肝功能无明显异常,Chlid-Pugh A级。

关键词：肝动脉化疗栓塞术微波消融肝尾状叶肿瘤

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碳钢板坯转用充当模型优化系统的开发实践

世界钢铁 2010年第6期10卷 59-62页

作者：顾玉明宝山钢铁股份有限公司

碳钢板坯的转用充当是L3生产管理系统中合同管理模块的一个重要功能,是改变材料与合同匹配关系的有效手段。在已有不锈钢合同计划管理体系的基础上,开发了碳钢板坯转用充当模型优化系统,实现了利用计算机系统对材料和合同的转用充当条... 详细信息

碳钢板坯的转用充当是L3生产管理系统中合同管理模块的一个重要功能,是改变材料与合同匹配关系的有效手段。在已有不锈钢合同计划管理体系的基础上,开发了碳钢板坯转用充当模型优化系统,实现了利用计算机系统对材料和合同的转用充当条件自动比对、校核,找出最佳匹配的合同或材料进行转用充当,大大提高了工作效率和匹配命中率,缩短了合同制造周期。经在线实际应用表明,该系统具有较高的有效性和实用性,转用充当工作效率提高80%以上。

关键词：碳钢板坯合同转用充当系统开发

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布-加综合征患者尿碘指标临床分析

介入放射学杂志 2021年第8期30卷 765-768页

作者：李琳顾玉明祖茂衡徐浩徐州医科大学附属医院介入放射科江苏221006

目的探究布-加综合征(BCS)发病机制与尿液中高浓度碘的相关性。方法选择2018年期间收治的115例BCS患者(实验组)和健康体检者120例(对照组),采用化学法分别进行尿碘水平检测。采用独立样本t检验进行两组间尿碘水平比较,采用单因素方差分... 详细信息

目的探究布-加综合征(BCS)发病机制与尿液中高浓度碘的相关性。方法选择2018年期间收治的115例BCS患者(实验组)和健康体检者120例(对照组),采用化学法分别进行尿碘水平检测。采用独立样本t检验进行两组间尿碘水平比较,采用单因素方差分析对最新BCS亚型分型肝静脉(HV)型、下腔静脉(IVC)型和混合型,以及病理解剖分型隔膜型、血栓型和管腔狭窄型患者尿碘水平进行比较。结果实验组、对照组尿碘水平分别为平均(456.9±257.4)μg/L、(118.3±232.1)μg/L,实验组显著较高(P=0.012)。实验组尿碘水平在性别、年龄间差异均无统计学意义(P>0.05)。IVC型、HV型、混合型患者尿碘水平分别为平均(771.4±367.4)μg/L、(294.3±312.1)μg/L、(490.1±287.7)μg/L,IVC型均高于HV型、混合型(P<0.05);隔膜型、血栓型、管腔狭窄型患者尿碘水平分别为平均(794.3±307.3)μg/L、(597.5±281.3)μg/L、(631.5±377.9)μg/L,隔膜型均高于血栓型、管腔狭窄型(P<0.05)。结论尿碘水平增高在BCS发病因素研究中有一定的临床意义。高碘与IVC型及隔膜型BCS有更确切的相关性。

关键词：布-加综合征碘下腔静脉隔膜型

Volume of fluid simulation of single argon bubble dynamics in liquid steel under RH vacuum conditions

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Journal of Iron and Steel Research International 2024年第4期31卷 828-837页

作者： gu-jun Chen Sheng-ping He College of Materials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

Single argon bubble dynamics in liquid steel under Ruhrstahl-Heraeus(RH)vacuum conditions were simulated using the volume of fluid method,and the ideal gas law was used to consider bubble growth due to heat transfer and pressure *** simulation with a constant bubble density was also performed to validate the numerical method,and the predicted terminal bubble shape and velocity were found to agree with those presented in the Grace diagram and calculated by drag correlation,*** simulation results under RH conditions indicate that the terminal bubble shape and velocity cannot be *** primary bubble growth occurs within a rising distance of 0.3 m owing to heating by the high-temperature liquid steel;subsequently,the bubble continues to grow under equilibrium with the hydrostatic *** the initial diameter is 8-32 mm,the bubble diameter and rising velocity near the liquid surface are 80-200 mm and 0.5-0.8 m/s,*** bubble rises rectilinearly with an axisymmetric shape,and the shape evolution history includes an initial sphere,(dimpled)ellipsoid,and spherical cap with satellite bubbles.

关键词： Bubble dynamics Liquid steel Volume of fluid Bubble growth Bubble shape Rising velocity

超声造影与增强MRI在评价肝癌TACE术后疗效的应用比较

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介入放射学杂志 2019年第7期28卷 682-686页

作者：杨亮顾玉明鹿皎刘欢徐州医科大学附属医院介入放射科

目的探究超声造影、增强 MRI 在肝癌经 TACE 术后疗效评价中的应用价值。方法收集2018 年 1 月至 2018 年 8 月接受 TACE 治疗的 100 例肝癌患者(共 170 个病灶),术后 1 周内分别进行增强MRI、对比剂增强超声(CEUS)检查,对其结果进行 Ka... 详细信息

目的探究超声造影、增强 MRI 在肝癌经 TACE 术后疗效评价中的应用价值。方法收集2018 年 1 月至 2018 年 8 月接受 TACE 治疗的 100 例肝癌患者(共 170 个病灶),术后 1 周内分别进行增强MRI、对比剂增强超声(CEUS)检查,对其结果进行 Kappa 检验及 McNemer 检验,比较其对检出残存病灶的灵敏度、特异度、准确度及两种检查结果的一致性。结果以最终诊断结果为依据,84 个 CEUS 造影、增强 MRI 均提示病灶存活,74 个病灶 CEUS、增强 MRI 均提示灭活,12 个病灶增强 MRI 提示存活,而CEUS 漏诊;增强 MRI 检查与最终检查结果完全一致,Kappa=1,P>0.05,而 CEUS 与增强 MRI 的 Kappa=0.859,P<0.05,增强 MRI 与 CEUS 的诊断吻合度较高,CEUS、MRI 诊断残存病灶的灵敏度,特异度,阳性预测值,阴性预测值比较,分别为 87.5%对 100.0%,100%对 100%,100%对 100%,86.0%对 100%。结论CEUS 能准确评估肝癌 TACE 术后是否有残存/复发病灶,且操作简单、方便、安全、价廉,在临床广泛普及,可作为肝癌 TACE 术后疗效评估的可靠方法,对于长期随访,CEUS 应辅以增强 MRI 进行全面评估。

关键词：原发性肝癌超声造影增强磁共振肝动脉化疗栓塞术

Ultra-simplified diffraction-based computational spectrometer

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Light(Science & Applications) 2024年第6期13卷 1022-1031页

作者： Chuangchuang Chen Honggang gu Shiyuan Liu State Key Laboratory of Intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhanHubei430074China Optics Valley Laboratory WuhanHubei430074China

Miniaturizing spectrometers for compact and cost-effective mobile platforms is a major challenge in current spectroscopy research,where conventional spectrometers are impractical due to their bulky *** miniaturized designs primarily rely on precalibrated response functions of nanophotonic structures to encode spectral information captured in a snapshot by detector *** spectrum reconstruction is achieved through computational techniques,but this requires precise component design,high-precision fabrication,and *** propose an ultra-simplified computational spectrometer that employs a one-to-broadband diffraction decomposition strategy facilitated by a numerical regularized transform that depends only on the spectrum of the diffracted *** key feature of our design is the use of a simple,arbitrarily shaped pinhole as the partial disperser,eliminating the need for complex encoding designs and full spectrum *** spectrometer achieves a reconstructed spectral peak location accuracy of better than 1 nm over a 200 nm bandwidth and excellent resolution for peaks separated by 3 nm in a bimodal spectrum,all within a compact footprint of under half an ***,our approach also reveals a breakthrough in broadband coherent diffractive imaging without requiring any prior knowledge of the broadband illumination spectrum,assumptions of non-dispersive specimens,or correction for detector quantum efficiency.

关键词： simplified spectrum illumination

An internal ballistic model of electromagnetic railgun based on PFN coupled with multi-physical field and experimental validation

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Defence Technology（防务技术） 2024年第2期32卷 254-261页

作者： Benfeng gu Haiyuan Li Baoming Li National Key Laboratory of Transient Physics Nanjing University of Science and TechnologyNanjing 210094China

To accelerate the practicality of electromagnetic railguns,it is necessary to use a combination of threedimensional numerical simulation and experiments to study the mechanism of bore *** this paper,a three-dimensional numerical model of the augmented railgun with four parallel unconventional rails is introduced to simulate the internal ballistic process and realize the multi-physics field coupling calculation of the rail gun,and a test experiment of a medium-caliber electromagnetic launcher powered by pulse formation network(PFN)is carried *** test methods such as spectrometer,fiber grating and high-speed camera are used to test several parameters such as muzzle initial velocity,transient magnetic field strength and stress-strain of *** the simulation results and experimental data,the damage condition of the contact surface is analyzed.

关键词： Internal ballistic modeling Electromagnetic rail gun Multi-physics field coupling Experimental validation PFN

Prediction of liquid circulation flow rate in RH degasser:improvement of decarburization at low atmospheric pressure

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Journal of Iron and Steel Research International 2024年第7期31卷 1661-1667页

The two-fluid model coupled with population balance model was used for simulating the gas-liquid flow in the Ruhrstahl-Heraeus(RH)*** predicted circulation flow rate was compared with that measured from a water model experiment to validate the mathematical ***,influence of snorkel immersion depth on liquid circulation flow rate was numerically investigated under an atmospheric pressure of 101 and 84 kPa,*** result indicates that the circulation flow rate of the RH degasser in the high-altitude area was severely reduced because of the decrease in atmospheric ***,increasing the snorkel immersion depth from 0.5 to 0.7 m can compensate for the decrease in atmospheric *** test result indicates that decarburization rate is significantly enhanced by increasing the snorkel immersion *** optimization,the percentage of heats with a final carbon content less than 0.002 wt.%is significantly increased from 22.0%to 96.4%.

关键词： RH degasser Two-fluid model Population balance model-Circulation flow rate Decarburization Snorkel immersion depth

A Comparison of Four Neural Networks Algorithms on Locomotion Intention Recognition of Lower Limb Exoskeleton Based on Multi-source Information

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Journal of Bionic Engineering 2024年第1期21卷 224-235页

作者： Duojin Wang Xiaoping gu Hongliu Yu Institute of Rehabilitation Engineering and Technology University of Shanghai for Science and Technology516 Jungong RoadShanghai 200093China Shanghai Engineering Research Center of Assistive Devices 516 Jungong RoadShanghai 200093China

Lower Limb Exoskeletons(LLEs)are receiving increasing attention for supporting activities of daily *** such active systems,an intelligent controller may be *** this paper,we proposed a locomotion intention recognition system based on time series data sets derived from human motion *** of input data and Deep Learning(DL)algorithms,this framework enables the detection and prediction of users’movement *** makes it possible to predict the detection of locomotion modes,allowing the LLEs to provide smooth and seamless *** pre-processed eight subjects were used as input to classify four scenes:Standing/Walking on Level Ground(S/WOLG),Up the Stairs(US),Down the Stairs(DS),and Walking on Grass(WOG).The result showed that the ResNet performed optimally compared to four algorithms(CNN,CNN-LSTM,ResNet,and ResNet-Att)with an approximate evaluation indicator of 100%.It is expected that the proposed locomotion intention system will significantly improve the safety and the effectiveness of LLE due to its high accuracy and predictive performance.

关键词： Lower limb exoskeletons(LLEs) Locomotion intention ResNet Multi-source