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Pancreaticoduodenectomy for borderline resectable pancreatic head cancer with a modified artery-first approach technique

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Hepatobiliary & Pancreatic Diseases International 2017年第2期16卷 215-221页

作者： Min Wang Hang Zhang Feng Zhu Feng Peng Xin Wang ming shen Ren-Yi Qin Department of Pancreatic-Biliary Surgery Affiliated Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China

BACKGROUND： The treatment of borderline resectable pancreatic head cancer（BRPHC） is still controversial and challenging. The artery-first approaches are described to be the important options for the early determination. Whether these approaches can achieve an increase R0 rate, better bleeding control and increasing long-term survival for BRPHC are still controversial. We compared a previously reported technique, a modified artery-first approach（MAFA）, with conventional techniques for the surgical treatment of ***： A total of 117 patients with BRPHC undergone pancreaticoduodenectomy（PD） from January 2013 to June 2015 were included. They were divided into an MAFA group（n=78） and a conventional-technique group（n=39）. Background characteristics, operative data and complications were compared between the two ***： Mean operation time was significantly shorter in the MAFA group than that in the conventional-technique group（313 vs 384 min; P=0.014）; mean volume of intraoperative blood loss was significantly lower in the MAFA group than that in the conventional-technique group（534 vs 756 m L; P=0.043）; and mean rate of venous resection was significantly higher in the conventional-technique group than that in the MAFA group（61.5% vs 35.9%; P=0.014）. Pathologic data, early mortality and morbidity were not different significantly between the two ***： MAFA is safe, simple, less time-consuming, less intraoperative blood loss and less venous resection, and therefore, may become a standard surgical approach to PD for BRPHC with the superior mesenteric vein-portal vein involvement but without superior mesenteric artery invasion.

关键词： pancreatic head cancer pancreaticoduodenectomy borderline resectable

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Vortex identification based on the Liutex method and its effect on fish passage upstream

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Journal of Hydrodynamics 2024年第1期36卷 130-141页

作者： Chun-ying shen Rui-guo Yang Xiao-tao Shi ming-ming Wang Shi-hua He Faculty of Electrical Power Engineering Kunming University of Science and TechnologyKunming650500China Hubei International Science and Technology Cooperation Base of Fish Passage China Three Gorges UniversityYichang443002China Shanghai Investigation Design and Research Institute Co.LtShanghai200434China

Fishway research is important for mitigating the fragmentation of river habitats caused by hydraulic *** vertical slit fishway is a broadly used fishway type because of its high efficiency and adaptability to water ***,the resulting vortex current disrupts the fish passage hence directly affecting fish *** study aims to accurately capture the vortex structure in the fishway and analyze the effect of vortex elements(vortex structure,vortex intensity,etc.)on *** conducted an analysis of the 3-D current flow field in the fishway through the utilization of an experimental model and the large eddy simulation(LES)***,we captured the vortex information in the fishway at different flow rates using the Liutex vortex identification method and investigated the effect of the vortex on fish *** results revealed that the structures inside the fishway pool occupy most of the room,however,the areas with higher vortex strength were primarily located in the vortex near the vertical seam and the mainstream,the vortex strength inside the fishway gradually increases with increasing flow,suppressing fish *** experienced significantly increased resistance when encountering strong *** suggests that the vortex may act as a physical barrier to fish *** findings highlight the potential negative effects of vortex on fish movement and reiterate the importance of understanding vortex dynamics for aquatic environmental *** an effective tool for identifying vortices in fluid flow,the Liutex method demonstrates features of vortex within the fishway,thereby providing important insights into the interaction between fluid dynamics and aquatic organisms.

关键词： Vertical slit fishway vortex identification method Liutex large eddy simulation(LES) fish experiment computational fluid dynamics

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Consistent comparison of angle Kappa adjustment between Oculyzer and Topolyzer Vario topography guided LASIK for myopia by EX500 excimer laser

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International Journal of Ophthalmology(English edition) 2018年第4期11卷 662-667页

作者： ming-shen Sun Li Zhang Ning Guo Yan-Zheng Song Feng-Ju Zhang Beijing Tongren Eye Center Beijing Tongren Hospital Capital Medical University Beijing Ophthalmology & Visual Sciences Key Lab

AIM： To evaluate and compare the uniformity of angle Kappa adjustment between Oculyzer and Topolyzer Vario topography guided ablation of laser in situ keratomileusis（LASIK） by EX500 excimer laser for ***： Totally 145 cases（290 consecutive eyes）with myopia received LASIK with a target of emmetropia. The ablation for 86 cases（172 eyes） was guided manually based on Oculyzer topography（study group）, while the ablation for 59 cases（118 eyes） was guided automatically by Topolyzer Vario topography（control group）. Measurement of adjustment values included data respectively in horizontal and vertical direction of cornea. RESULTS： Horizontally, synclastic adjustment between manually actual values（dx_（manu）） and Oculyzer topography guided data（dx_（ocu）） accounts 35.5% in study group, with mean dx_（manu）/dx_（ocu） of 0.78±0.48; while in control group, synclastic adjustment between automatically actual values（dx_（auto）） and Oculyzer topography data（dx_（ocu）） accounts 54.2%, with mean dx_（auto）/dx_（ocu） of 0.79±0.66. Vertically, synclastic adjustment between dy_（manu） and dy_（ocu） accounts 55.2% in study group, with mean dy_（manu）/dy_（ocu） of 0.61±0.42; while in control group, synclastic adjustment between dy_（auto） and dy_（ocu） accounts 66.1%, with mean dy_（auto）/dy_（ocu） of 0.66±0.65. There was no statistically significant difference in ratio of actual values/Oculyzer topography guided data in horizontal and vertical direction between two groups（P=0.951, 0.621）.CONCLUSION： There is high consistency in angle Kappa adjustment guided manually by Oculyzer and guided automatically by Topolyzer Vario topography during corneal refractive surgery by Wave Light EX500 excimer laser.

关键词： angle Kappa adjustment Oculyzer Topolyzer uniformity laser in situ keratomileusis

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Somatic growth of lean children:the potential role of sleep

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World Journal of Pediatrics 2014年第3期10卷 245-250页

作者： Yan-Rui Jiang Karen Spruyt Wen-Juan Chen Xiao-ming shen Fan Jiang Department of Developmental and Behavioral Pediatrics Shanghai Children's Medical CenterShanghai Jiaotong University School of MedicineShanghaiChina and MOE-Shanghai Key Laboratory of Children's Environmental Health Shanghai Institute for Pediatric Research Xinhua HospitalShanghai Jiaotong University School of Medicine and MOE-Shanghai Key Laboratory of Children's Environmental HealthShanghaiChina

Background:Despite the current obesity pandemic,childhood malnutrition remains an urgent,public health *** to the obesity pandemic,childhood malnutrition is influenced by genetic and a number of social,environmental and biological *** this study,we investigated the association between sleep duration and somatic growth in lean ***:A stratified,randomly clustered sampling design was used to select fifth grade students from 10 primary schools in *** on a body mass index below the 15th percentile a subsample of 143 lean children aged 10-11 years old was defi *** duration and other potential confounders were surveyed through parental or self-report *** measurements were collected and used to calculate the Z score of weight,height,body mass index as well as body fat ***:Compared with children who slept<9 hours,those who slept for≥10 hours grew taller and gained more weight after adjusting for confounding *** children slept 9-10 hours,they had signifi cantly higher Z score of weight and body mass ***:Prolonged sleep not only benefi ts weight gain but also improves height in lean *** findings might provide important public health advice such that prolonged sleep may be an effective modifi er of nutritional problems in childhood.

关键词： height lean children sleep somatic growth weight

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基于CEEMDAN-SBiGRU-OMHA的短期电力负荷预测

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计算机系统应用 2024年第10期33卷 124-132页

作者：包广斌刘晨张波沈治名罗曈兰州理工大学计算机与通信学院兰州730050

为了提高短期电力负荷预测的精准度,充分挖掘电力负荷数据的复杂相关性,提出了一种优化多头注意力机制的CEEMDAN-SBiGRU组合预测模型,改进了特征提取和特征融合两个模块.首先,采用自适应噪声完全集成经验模态分解(complete ensemble emp... 详细信息

为了提高短期电力负荷预测的精准度,充分挖掘电力负荷数据的复杂相关性,提出了一种优化多头注意力机制的CEEMDAN-SBiGRU组合预测模型,改进了特征提取和特征融合两个模块.首先,采用自适应噪声完全集成经验模态分解(complete ensemble empirical mode decomposition with adaptive noise,CEEMDAN)将电力负荷数据分解成多个内在模态函数(IMF)和一个残差信号(RES);同时引入降噪自编码器DAE挖掘数据中受气象因素、工作日类型和温度变化的潜在特征.其次,将提取到的复杂特征输入至堆叠双向门控循环单元(stacked bidirectional gated recurrent unit,SBiGRU)模块中继续学习,以获取隐藏状态.最后,将获取的隐藏状态输入至加入残差机制和层归一化优化的多头注意力(optimized multi-head attention,OMHA)机制模块,可以准确地给重要特征分配更高的权重,解决噪声干扰问题.实验结果表明,CEEMDAN-SBiGRU-OMHA组合模型具有更高的精确性.

关键词：短期电力负荷预测自适应噪声完全集成经验模态分解(CEEMDAN) 堆叠双向门控循环单元(SBiGRU) 降噪自编码器优化的多头注意力(OMHA)

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杨木单板辊压本构模型构建与力学特性分析

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林业机械与木工设备 2024年第9期52卷 102-109页

作者：沈明哲张国梁胡继文李文浩河北农业大学机电工程学院河北保定071000 河北农业大学林学院河北保定071000 河北农业大学智慧木匠创新工作室河北保定071000 河北省智慧农业装备技术创新中心河北保定071000

杨木单板通过卷曲辊压方式制备重组材是其高值化利用的有效途径,明确杨木单板的卷曲辊压受力特性与本构模型是辊压成型的基础。在可表达杨木受压力学特性的多孔材料力学本构模型基础上,分析杨木单板在辊压过程中的受力情况,提出杨木单... 详细信息

杨木单板通过卷曲辊压方式制备重组材是其高值化利用的有效途径,明确杨木单板的卷曲辊压受力特性与本构模型是辊压成型的基础。在可表达杨木受压力学特性的多孔材料力学本构模型基础上,分析杨木单板在辊压过程中的受力情况,提出杨木单板辊压力学模型。为确定力学模型未知参数并验证模型对杨木单板受压特性的适用性,进行杨木单板受压标定试验,模型与曲线拟合相关系数为0.9941,能够表征应力-应变的对应关系,用于后续测定试验中单板辊压力的表达。通过ADAMS对单板卷曲辊压过程的受力变化进行仿真,并使用东华DH5908无线动态应变测试采集系统对辊压成型的应变信号进行采集,试验值与仿真值的误差在4%~8%之间,验证了力学仿真分析和力学模型的有效性。研究结果可为单板卷曲辊压成型工艺控制和数值分析提供重要依据。

关键词：杨木单板力学模型辊压 ADAMS 仿真

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基于失效模式与效应分析的闭环管理在住院患者结肠镜检查肠道准备中的应用

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中国医药导报 2024年第17期21卷 103-105,112页

作者：申明张铭光任宏飞刘素珍四川大学华西医院/四川大学华西护理学院四川成都610041

目的探究基于失效模式与效应分析(FMEA)的闭环管理对行结肠镜检查的住院患者的影响。方法选取四川大学华西医院2022年7月至2023年8月收治的行结肠镜检查的住院患者156例,根据随机数字表法将其分为观察组和对照组,每组78例。对照组实... 详细信息

目的探究基于失效模式与效应分析(FMEA)的闭环管理对行结肠镜检查的住院患者的影响。方法选取四川大学华西医院2022年7月至2023年8月收治的行结肠镜检查的住院患者156例,根据随机数字表法将其分为观察组和对照组,每组78例。对照组实施常规管理,观察组实施基于FMEA的闭环管理。比较两组肠道准备合格率、结肠镜检查时间、镜检舒适度(疼痛状态、镇静效果评分)。比较两组入院时及检查前结肠镜检查认知水平评分和不良反应总发生率。结果观察组肠道准备合格率高于对照组,差异有统计学意义(P0.05);检查前,两组结肠镜检查认知水平评分高于入院时,且观察组高于对照组,差异有统计学意义(P<0.05)。观察组不良反应总发生率低于对照组,差异有统计学意义(P<0.05)。结论基于FMEA的闭环管理能显著提高住院患者肠道准备合格率,且能够缩短检查时间,提高患者舒适度。

关键词：结肠镜检查肠道准备失效模式与效应分析闭环管理肠道准备合格率

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Probing microstructure of solid-state synthesized LiCoO_(2)with MAS NMR spectroscopy

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Magnetic Resonance Letters 2023年第4期3卷 298-305页

作者： Suyu Gu Guozhong Lu Nianrui Guo Juncheng Xu Yu Jiang ming shen Bingwen Hu Shanghai Key Laboratory of Magnetic Resonance State Key Laboratory of Precision SpectroscopySchool of Physics and Electronic ScienceEast China Normal UniversityShanghai200241China

LiCoO_(2)is an important category of active cathode materials in lithium-ion batteries due to its high compacted electrode density,good thermal stability,and stable voltage *** works on LiCoO_(2)have focused on the realization of higher charging voltages to fully utilize its high theoretical ***,an unambiguous atomic-level local probe is essential for the understanding of structure-function *** we employ highresolution solid-state nuclear magnetic resonance(NMR)spectroscopy to study the local atomic environments in LiCoO_(2)synthesized with three common sintering *** one-dimensional 7Li NMR shows distinct linewidth and subtle dependence on lithium over-stoichiometry,both 7Li and 59Co relaxation times are highly dependent on the sintering *** prove that the two-step sintering method favors the elimination of unreacted Co3O4,thereby enabling the best discharge capacity in all-solid-state lithium batteries assembled with LiCoO_(2)/LGPS/LiIn,which is in accordance with its narrowest 7Li linewidth and the longest 7Li/59Co T1.

关键词： LiCoO_(2) Solid-state NMR T1 relaxation Local structure

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Gauge dependence of the perturbative QCD predictions under the momentum-space subtraction scheme

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Chinese Physics C 2020年第11期44卷 31-52页

作者： Jun Zeng Xing-Gang Wu Xu-Chang Zheng Jian-ming shen Department of Physics Chongqing UniversityChongqing 401331China School of Physics and Electronics Hunan UniversityChangsha 410082China

The momentum-space subtraction(MOM) scheme is one of the most frequently used renormalization schemes in perturbative QCD(pQCD) *** this paper,we discuss in detail the gauge dependence of the pQCD predictions obtained under the MOM ***,a renormalization scale ambiguity exists for the fixedorder pQCD predictions;this assigns an arbitrary range and error for the fixed-order pQCD prediction and makes the discussions on the issue of the gauge dependence much more *** principle of maximum conformality(PMC) adopts the renormalization group equation to determine the magnitude of the coupling constant;hence,it determines the effective momentum flow of the process,which is independent of the choice of renormalization ***,no renormalization scale ambiguity exists in PMC *** focus our attention on the MOM scheme’s gauge dependence,we first apply the PMC to deal with the pQCD *** an explicit example,we adopt the Higgs boson decay width Γ(H→gg) up to its five-loop QCD contribution,to demonstrate the behavior of the gauge dependence before and after applying the *** vertices are chosen to define five different MOM schemes:mMOM,MOMh,MOMq,MOMg,and *** these MOM schemes,we obtain Γ(H →gg)|PMC(m(MOM)=332.8-3.711.6±7.3 keV,Γ(H→gg)|PMCMOMh=332.8-34.6+27.5±7.3 keV,Γ(H→gg)|PMCMOMq=332.934.727.4±7.3 keV,Γ(H→gg)|PMCMOMg=332.734.627.5±7.3 keV,and Γ(H→gg)|PMCMOMgg=337.9-1.7+1.2±7.7 keV;here,the central values correspond to the Landau gauge with the gauge parameter ξMOM=0,the first errors correspond to ξMOM ∈ [-1,1],and the second ones arise through taking △αsMS(MZ)=±*** uncertainty of the Higgs mass △MH=0.24 GeV causes an extra error of ~±1.7(or ~±1.8) keV for all the aforementioned MOM *** is found that the Higgs decay width Γ(H→gg) depends very weakly on the choice of MOM scheme,which is consistent with renormalization group *** is found that the gauge dependence of Γ(H→ gg) under the MOMgg

关键词： perturbative QCD renormalization scale ambiguity momentum-space subtraction scheme

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Novel and Self-Consistency Analysis of the QCD Running Coupling α_(s)(Q) in Both the Perturbative and Nonperturbative Domains

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Chinese Physics Letters 2022年第7期39卷 30-35页

作者： Qing Yu Hua Zhou Xu-Dong Huang Jian-ming shen Xing-Gang Wu Department of Physics Chongqing Key Laboratory for Strongly Coupled PhysicsChongqing UniversityChongqing 401331China Department of Physics Norwegian University of Science and TechnologyHøgskoleringen 5N-7491 TrondheimNorway School of Physics and Electronics Hunan UniversityChangsha 410082China

The quantum chromodynamics(QCD) coupling αs is the most important parameter for achieving precise QCD predictions. By using the well measured effective coupling α_(s)^(g)1)(Q) defined from the Bjorken sum rules as a basis, we suggest a novel self-consistency way to fix the αs at all scales: The QCD light-front holographic model is adopted for its infrared behavior, and the fixed-order p QCD prediction under the principle of maximum conformality(PMC) is used for its high-energy behavior. Using the PMC scheme-and-scale independent perturbative series,and by transforming it into the one under the physical V scheme, we observe that a precise αs running behavior in both the perturbative and nonperturbative domains with a smooth transition from small to large scales can be achieved.

关键词： PAA PMC Novel and Self-Consistency Analysis of the QCD Running Coupling in Both the Perturbative and Nonperturbative Domains QCD

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