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Prediction and stratification for the surgical adverse events after minimally invasive esophagectomy:A two-center retrospective study

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World Journal of Gastroenterology 2025年第3期31卷 50-61页

作者： Qi-Hong Zhong Jiang-Shan Huang Fei-Long Guo Jing-Yu Wu Mao-Xiu Yuan Jia-Fu Zhu Wen-Wei Lin Sui Chen Zhen-yang zhang Jiang-Bo Lin Department of Thoracic Surgery Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina The Graduate School Fujian Medical UniversityFuzhou 350001Fujian ProvinceChina Department of Thoracic Surgery Affiliated Hospital of Jinggangshan UniversityJi’an 343000Jiangxi ProvinceChina

BACKGROUND Minimally invasive esophagectomy(MIE)is a widely accepted treatment for esophageal cancer,yet it is associated with a significant risk of surgical adverse events(SAEs),which can compromise patient recovery and long-term *** preoperative identification of high-risk patients is critical for improving *** To establish and validate a risk prediction and stratification model for the risk of SAEs in patients with *** This retrospective study included 747 patients who underwent MIE at two centers from January 2019 to February *** were separated into a train set(n=549)and a validation set(n=198).After screening by least absolute shrinkage and selection operator regression,multivariate logistic regression analyzed clinical and intraoperative variables to identify independent risk factors for SAEs.A risk stratification model was constructed and validated to predict the probability of *** SAEs occurred in 10.2%of patients in train set and 13.6%in the validation *** with SAE had significantly higher complication rate and a longer hospital stay after *** key independent risk factors identified included chronic obstructive pulmonary disease,a history of alcohol consumption,low forced expiratory volume in the first second,and low albumin *** stratification model has excellent prediction accuracy,with an area under the curve of 0.889 for the training set and an area under the curve of 0.793 for the validation *** The developed risk stratification model effectively predicts the risk of SAEs in patients undergoing MIE,facilitating targeted preoperative interventions and improving perioperative management.

关键词： Surgical adverse events Minimally invasive esophagectomy Esophageal cancer Stratification model Perioperative management

省级地球物理站网仪器运行监控系统设计与实现

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地震研究 2025年第1期48卷 141-150页

作者：瞿旻张敏刘高川杨正纲张扬宫杰王恒知云南省地震局云南昆明650224 江苏省地震局江苏南京210014 中国地震台网中心北京100045

顺应地震监测业务改革方向,为提升地球物理站网仪器运维效率,设计了一套地球物理站网仪器运行监控系统。系统包括基于B/S架构设计的监控软件平台、手机监控App软件和基于C/S架构设计的调试工具,通过实时获取地球物理仪器状态流和数据流... 详细信息

顺应地震监测业务改革方向,为提升地球物理站网仪器运维效率,设计了一套地球物理站网仪器运行监控系统。系统包括基于B/S架构设计的监控软件平台、手机监控App软件和基于C/S架构设计的调试工具,通过实时获取地球物理仪器状态流和数据流,对仪器时钟准确性、连通性,数据完整性、有效性等进行自动化分析,实现辖区范围内地球物理站网仪器运行状态的实时监控。该系统可对仪器运行状态异常、产出数据不符合规范要求等情况进行异常告警,提示运维人员第一时间排查故障,从而提高了地球物理站网仪器运行率和数据质量;系统对获取的数据进行备份,提高了地球物理台网数据完整性,并为今后实现数据质量实时监控等数据服务提供了技术路线。

关键词：地球物理站网仪器运行监控自动化分析异常告警

“In front of patients,I will always be a pupil.”*** zhang:the founder of the modern Chinese gastroenterology

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Protein & Cell 2019年第1期10卷 1-4页

作者： Lu Wang Xudong Liu Wenli Duan Shu-yang zhang Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

*** zhang(张教骞,Hsiao-Chien Chang)was an outstanding clinician,therapist and medical educator,a member of the Academic Divisions of the Chinese Academy of Sciences,he is considered to be the founder of the modern Chinese gastroenterology(PUMCH,1988).As a doctor,he made a systemic and deep research on human blood volume,gastric secretion function,peptic ulcer disease,gastric ulcer and gastric cancer,celiac tuberculosis,amoebic dysentery,ulcerative colitis and so *** diagnosed and treated multiple intractable *** an educator,he emphasized the training of clinical basic skills,urged students to grasp the utilization of science in study and *** trained a large number of talents for Chinese medicine.

关键词： be multiple doctor basic grasp he

Homogeneous and heterogeneous reactions of anthracene with selected atmospheric oxidants

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Journal of Environmental Sciences 2013年第9期25卷 1817-1823页

作者： yang zhang Jinian Shu Yuanxun zhang Bo yang Research Center for Eco-Environmental Sciences Chinese Academy of Sciences University of Chinese Academy of Sciences

The reactions of gas-phase anthracene and suspended anthracene particles with O3 and O3-NO were conducted in a 200-L reaction chamber, respectively. The secondary organic aerosol （SOA） formations from gas-phase reactions of anthracene with O3 and O3-NO were observed. Meanwhile, the size distributions and mass concentrations of SOA were monitored with a scanning mobility particle sizer （SMPS） during the formation processes. The rapid exponential growths of SOA reveal that the atmospheric lifetimes of gas-phase anthracene towards O3 and O3-NO are less than 20.5 and 4.34 hr, respectively. The particulate oxidation products from homogeneous and heterogeneous reactions were analyzed with a vacuum ultraviolet photoionization aerosol time-of-flight mass spectrometer （VUV-ATOFMS）. Gas chromatograph/mass spectrometer （GC/MS） analyses of oxidation products of anthracene were carried out for assigning the time-of-flight （TOF） mass spectra of products from homogeneous and heterogeneous reactions. Anthrone, anthraquinone, 9,10- dihydroxyanthracene, and 1,9,10-trihydroxyanthracene were the ozonation products of anthracene, while anthrone, anthraquinone, 9-nitroanthracene, and 1,8-dihydroxyanthraquinone were the main products of anthracene with O3-NO.

关键词： anthracene ozonation secondary organic aerosol heterogeneous reaction aerosol mass spectrometer

Strong Energy Condition of Simple Gauge Field System

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Chinese Physics Letters 1998年第8期15卷 622-624页

作者： zhang yang Astrophysics Center University of Science and Technology of ChinaHefei 230026

An investigation is carried out for the violation of the strong energy condition by a generic field system consisting of charged scalar boson condensate,fermions,and U(1)gauge *** Bose-Einstein condensation of the system is also studied by the Hamiltonian *** is found that the strong energy condition can be violated by this quantum field system at high densities.

关键词： field system gauge

Cosmic Perturbations in yang-Mills Inflation

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Chinese Physics Letters 1997年第3期14卷 237-240页

作者： zhang yang Astrophysics Center University of Science and Technology of ChinaHefei 230026

We elaborate the quantum yang-Mills inflationary *** find that a slow-rolling inflation occurs naturally in the presence of a thermal component produced by the decay of yang-Mills *** magnitude of cosmic perturbation ... 详细信息

关键词： Mills closer perturbation

Origin of the Negative Pressure for Relativistic Boson Condensate

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Chinese Physics Letters 2000年第1期17卷 76-78页

作者： zhang yang Astrophysics Center University of Science and Technology of ChinaNational Astronomical ObservatoriesChinese Academy of SciencesHefei 230026

We study the physical origin of the negative pressure for quantum scalar fields in inffationary *** vacuum state and other quantum coherent states are explicitly constructed for the charged and uncharged relativistic ... 详细信息

关键词： quantum coherent relativistic

PsmArena:Partitioned Shared Memory for NUMA-Awareness in Multithreaded Scientific Applications

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Tsinghua Science and Technology 2021年第3期26卷 287-295页

作者： zhang yang Aiqing zhang Zeyao Mo Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijing 100088China

The Distributed Shared Memory(DSM)architecture is widely used in today’s computer design to mitigate the ever-widening processing-memory gap,and it inevitably exhibits Non-Uniform Memory Access(NUMA)to shared-memory parallel *** to adapt to the NUMA effect can significantly downgrade application performance,especially on today’s manycore platforms with tens to hundreds of ***,traditional approaches such as first-touch and memory policy fall short in false page-sharing,fragmentation,or ease of *** this paper,we propose a partitioned shared-memory approach that allows multithreaded applications to achieve full NUMA-awareness with only minor code changes and develop an accompanying NUMA-aware heap manager which eliminates false page-sharing and minimizes *** on a 256-core cc-NUMA computing node show that the proposed approach helps applications to adapt to NUMA with only minor code changes and improves the performance of typical multithreaded scientific applications by up to 4.3 folds with the increased use of cores.

关键词： partitioned shared memory Non-Uniform Memory Access(NUMA) heap manager multithread manycore

A New Method for Type Synthesis of 2R1T and 2T1R 3-DOF Redundant Actuated Parallel Mechanisms with Closed Loop Units

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Chinese Journal of Mechanical Engineering 2020年第6期33卷 134-157页

作者： Yongquan Li yang zhang Lijie zhang Parallel Robot and Mechatronic System Laboratory of Hebei Province Yanshan UniversityQinhuangdao066004China Key Laboratory of Advanced Forging&Stamping Technology and Science Ministry of Education of ChinaYanshan UniversityQinhuangdao066004China School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen518052China Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control Yanshan UniversityQinhuangdao066004China

The current type synthesis of the redundant actuated parallel mechanisms is adding active-actuated kinematic branches on the basis of the traditional parallel mechanisms,or using screw theory to perform multiple getting intersection and union to complete type *** number of redundant parallel mechanisms obtained by these two methods is *** this paper,based on Grassmann line geometry and Atlas method,a novel and effective method for type synthesis of redundant actuated parallel mechanisms(PMs)with closed-loop units is ***,the degree of freedom(DOF)and constraint line graph of the moving platform are determined successively,and redundant lines are added in constraint line graph to obtain the redundant constraint line graph and their equivalent line graph,and a branch constraint allocation scheme is formulated based on the allocation ***,a scheme is selected and redundant lines are added in the branch chains DOF graph to construct the redundant actuated branch chains with closed-loop ***,the branch chains that meet the requirements of branch chains configuration criteria and F&C(degree of freedom&constraint)line graph are *** this paper,two types of 2 rotational and 1 translational(2R1T)redundant actuated parallel mechanisms and one type of 2 translational and 1 rotational(2T1R)redundant actuated parallel mechanisms with few branches and closed-loop units were taken as examples,and 238,92 and 15 new configurations were *** the mechanisms contain closed-loop units,and the mechanisms and the actuators both have good ***,all the mechanisms have excellent comprehensive performance,in which the two rotational DOFs of the moving platform of 2R1T redundant actuated parallel mechanism can be independently *** instantaneous analysis shows that all mechanisms are not instantaneous,which proves the feasibility and practicability of the method.

关键词： Redundant actuated Parallel mechanisms Type synthesis Atlas method Instantaneous analysis