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Chinese Association for the Study of Pain:Expert consensus on chronic postsurgical pain

World Journal of Clinical Cases 2021年第9期9卷 2090-2099页

作者： Yi-ming liu Yi Feng Yan-Qing liu Yan Lv Yuan-chang xiong Ke Ma xian-Wei Zhang Jin-Feng liu Yi Jin Hong-Guang Bao min Yan tao Song Qing liu Department of Algology Peking University People’s HospitalBeijing 100044China Department of Algology Beijing Tiantan HospitalCapital Medical UniversityBeijing 100050China Department of Algology Air Force Medical University of PLAXi’an 710032Shaanxi ProvinceChina Department of Anesthesiology Changhai HospitalNaval Military Medical UniversityShanghai 200433China Department of Algology Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Algology The Second Affiliated Hospital of Harbin Medical UniversityHarbin 150001Heilongjiang ProvinceChina Department of Algology Affiliated Jinling HospitalMedical School of Nanjing UniversityNanjing 210002Jiangsu ProvinceChina Department of Anesthesiology Nanjing First HospitalNanjing Medical UniversityNanjing 210006Jiangsu ProvinceChina Department of Anesthesiology The Second Affiliated Hospital of Zhejiang University school of MedicineHangzhou 310058Zhejiang ProvinceChina Department of Algology The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Department of Algology The Affiliated T.C.M Hospital of Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina

Chronic postsurgical pain is a common surgical complication that severely reduces a patient’s quality of *** perioperative interventions and management strategies have been developed for reducing and managing chronic postsurgical *** the leadership of the Chinese Association for the Study of Pain,an editorial committee was formed for chronic postsurgical pain diagnosis and treatment by experts in relevant *** editorial committee composed the main content and framework of this consensus and established a working *** working group conducted literature review(1989-2020)using key words such as“surgery”,“post-surgical”,“post-operative”,“pain”,“chronic”,and“persistent”in different databases including MEDLINE,EMBASE,PubMed,Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic *** publications in the English language were *** types of literature included systematic reviews,randomized controlled studies,cohort studies and case *** consensus was written based on clinical practice combined with literature *** first draft of the consensus was rigorously reviewed and edited by all the editorial committee experts before being *** level of evidence was assessed by methodological experts based on the Oxford Centre for Evidence-Based Medicine Levels of *** strength of recommendation was evaluated by all editorial committee experts,and the opinions of most experts were adopted as the final *** recommendation level“strong”generally refers to recommendations based on high-level evidence and consistency between clinical behavior and expected *** recommendation level“weak”generally refers to the uncertainty between clinical behavior and expected results based on low-level evidence.

关键词： Chronic postsurgical pain Treatment Interventional Prevention

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Enhanced photothermal dehydration of methanol over W_(18)O_(49)/Au/SAPO-34 catalysts with broadened light absorption

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Rare Metals 2024年第3期43卷 1139-1152页

作者： Ya-Qin Tang Meng-xia Yan chang-Qian Lu Shao-Yuan Li Kui-xian Wei tao Qu Wen-HuiMa Yong-Nian Dai Kong-Zhai Li Da-Jun Luo xue-Liang Zhang Yi-Ke liu Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming650093China School of Materials and Energy Engineering Guizhou Institute of TechnologyGuiyang550003China

Methanol-to-olefins(MTO)process is one of the most critical pathways to produce low carbon ***,the reaction is driven by thermal catalysis,which inevitably needs to consume large amounts of fossil *** a new technique to substitute for the fuel burning is urgent for MTO process to improve the industry prospects and ***,we report a novel W_(18)O_(49)/Au/SAPO-34(W/Au/S),a multifunctional photothermal catalyst for the MTO reaction.A high methanol conversion was achieved under xenonum(Xe)lamp irradiation,yielding methyl ether(ME)and ethylene as the main *** optimized W/Au/S catalysts showed ethylene yield as high as 250μmol in 60 min,which was 2.5 times higher than that of Au/*** physiochemical characterization revealed that the SAPO-34 molecular sieves were surrounded by Au and W_(18)O_(49)nanoparticles,which exhibited a strong localized surface plasmon resonance excitation around 540 nm and light absorption beyond 500 *** multifunctional catalysts showed a strong photothermal effect,arising from the broadened light absorption of Au and W_(18)O_(49)nanoparticles,leading to a temperature as high as 250℃on the surface of the *** study showed that the superior ethylene selectivity of W/Au/S catalysts was attributed to the moderating acidic sites of W_(18)O_(49)for methanol dehydration to *** research may provide new insight for designing heterostructures to improve photo-to-chemical conversion performance and is expected to accelerate progress toward the excellent multifunctional photothermal catalysts with broad light absorption for methanol activation and C-C bond formation.

关键词： Methanol conversion Ethylene Photothermal catalysis W_(18)O_(49) BrΦnsted-acid

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Distribution,characteristics and influencing factors of fresh groundwater resources in the Loess Plateau,China

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China Geology 2021年第3期4卷 509-526页

作者： Hai-xue Li Shuang-bao Han xi Wu Sai Wang Wei-po liu tao Ma Meng-nan Zhang Yu-tao Wei Fu-qiang Yuan Lei Yuan Fu-cheng Li Bin Wu Yu-shan Wang min-min Zhaoa Han-wen Yang Shi-bo Wei Center for Hydrogeology and Environmental Geology Survey China Geological SurveyBaoding 071051China Southern University of Science and Technology Shenzhen 518055China Geological Environment Monitoring Institute of Gansu Province Lanzhou 730050China China Institute for GeoEnvironmental Monitoring China Geological SurveyBeijing 100081China xi'an Center China Geological SurveyXi'an 710100China

The fresh groundwater in the Loess Plateau serves as a major source of water required for the production and livelihood of local residents and is greatly significant for regional economic and social development and ecological *** paper analyzes the hydrogeological conditions and groundwater characteristics in the Loess Plateau,expatiates on the types and distribution characteristics of the fresh groundwater in the plateau,and analyzes the influencing factors and mechanisms in the formation of the fresh groundwater in the plateau as a *** on this,it summarizes the impacts of human activities and climatic change on the regional fresh *** groundwater in Loess Plateau features uneven temporal-spatial distribution,with the distribution space of the fresh groundwater closely relating to *** groundwater shows a distinct zoning pattern of hydrochemical *** is fresh water in shallow parts and is salt water in deep parts overall,while the fresh water of exploration value is distributed only in a small *** storage space and migration pathways of fresh groundwater in the loess area feature dual voids,vertical multilayers,variable structure,poor renewability,complex recharge processes,and distinct spatial *** general,the total dissolved solids(TDS)of the same type of groundwater tends to gradually increase from recharge areas to discharge *** favorable for the formation of fresh groundwater in loess tablelands include the low content of soluble salts in strata,weak evaporation,and special hydrodynamic *** to climate change and human activities,the resource quantity of regional fresh water tends to decrease overall,and the groundwater dynamic field and the recharge-discharge relationships between groundwater and surface water have changed in local *** activities have a small impact on the water quality but slightly affect the water quantity of the groundwater in loess.

关键词： Fresh groundwater Distribution pattern Climate change Human activities Hydrogeological survey engineering Loess Plateau China

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纤维增韧轻骨料混凝土单轴受压应力-应变全曲线试验研究

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工程力学 2019年第7期36卷 126-135,173页

作者：魏慧吴涛杨雪刘喜长安大学建筑工程学院

为探究纤维增韧后轻骨料混凝土应力-应变全曲线,完成了不同混凝土强度等级、纤维种类及掺量下的9组棱柱体单轴受压试验,分析了破坏过程和破坏特征,系统研究了各因素对峰值应力、峰值应变和弹性模量的影响,并结合已有研究给出了各曲线特... 详细信息

为探究纤维增韧后轻骨料混凝土应力-应变全曲线,完成了不同混凝土强度等级、纤维种类及掺量下的9组棱柱体单轴受压试验,分析了破坏过程和破坏特征,系统研究了各因素对峰值应力、峰值应变和弹性模量的影响,并结合已有研究给出了各曲线特征点计算模型,考虑纤维轻骨料混凝土自身特征,建立了分段式纤维轻骨料混凝土应力-应变全曲线模型。研究表明:轻骨料混凝土破坏特征与普通混凝土显著不同,掺入纤维有效抑制了其内部微裂缝的开展,起到阻裂、增韧的效果,且随混凝土强度等级、纤维种类及掺量变化差异明显;纤维增韧后试件的应力-应变曲线下降段坡度趋于平缓,脆性得到有效改善;建议的应力-应变全曲线模型与试验结果吻合良好,能够准确描述纤维增韧轻骨料混凝土在单轴受压作用下的受力变形特征。

关键词：轻骨料混凝土纤维增韧峰值应力弹性模量应力-应变曲线模型

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腹筋对轻骨料混凝土深受弯构件受剪性能及尺寸效应影响的试验研究

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土木工程学报 2022年第4期55卷 1-11,22页

作者：吴涛杨雪刘喜魏慧长安大学陕西西安710061

完成对称集中荷载作用下的8根轻骨料混凝土深受弯构件及2根普通混凝土深受弯构件受剪性能试验,分析了腹筋配筋率及截面高度对破坏过程及形态、荷载-跨中挠度曲线、特征荷载、斜裂缝发展趋势、纵筋及腹筋应变等的影响机制与规律,重点明... 详细信息

完成对称集中荷载作用下的8根轻骨料混凝土深受弯构件及2根普通混凝土深受弯构件受剪性能试验,分析了腹筋配筋率及截面高度对破坏过程及形态、荷载-跨中挠度曲线、特征荷载、斜裂缝发展趋势、纵筋及腹筋应变等的影响机制与规律,重点明确了腹筋对深受弯构件抗剪承载力及尺寸效应影响的作用机理。为合理量化腹筋在传力机制中的贡献,建立以腹筋作为竖向拉杆的改进拉-压杆模型(STM),结合对典型压杆有效系数模型的分析和评价,验证了改进STM的有效性。试验结果表明:试件主要发生剪压破坏,其破坏形态与截面高度无关,腹筋可有效约束混凝土剥落;随腹筋配筋率增大,名义开裂/极限强度呈增大趋势,而最大斜裂缝宽度随之降低;腹筋可在抵抗斜截面内部分拉应力的同时对压杆形成有效侧向约束,削弱尺寸效应影响。计算结果表明:与简化STM相比,改进STM能够合理反映腹筋配筋率对受剪承载力的影响,基于ACI 318-19压杆有效系数的改进STM的预测值与试验值吻合良好。

关键词：深受弯构件轻骨料混凝土腹筋受剪承载力拉-压杆模型

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Analyzing the transient effects of 60Co gamma rays in a CIS by Monte Carlo method

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Nuclear Science and Techniques 2019年第7期30卷 100-106页

作者： Yuan-Yuan xue Zu-Jun Wang min-Bo liu Rui Xu Hao Ning Wen Zhao Bao-Ping He Zhi-Bin Yao Jiang-Kun Sheng Wu-Ying Ma Guan-tao Dong The State Key Laboratory of Intense Pulsed Radiation Simulation and Effect Northwest Institute of Nuclear Technology Xi’an 710613 China School of Materials Science and Engineering Xiangtan University Xiangtan 411105 China

The objective of this work is to analyze the transient effects of ^60Co gamma rays in the CMOS image sensor (CIS) using the Monte Carlo method, based on Geant4. The track, energy spectrum, and angle of produced electrons when gamma rays traversed a silicon or silicon dioxide cube were calculated. A simplified model of a 500 × 500 CIS array was established, and the transient effects of gamma rays in the CIS were simulated. The raw images were captured when the CIS was irradiated by gamma rays. The experimental results were compared with the simulation results. The characteristics of the typical events induced by transient effects were analyzed.

关键词： ^60Co gamma rays Transient effects CMOS image sensor (CIS) Geant4

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基于深度学习的转弯车流量检测方法

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科学技术与工程 2025年第4期25卷 1701-1710页

作者：张韡李永刘涛哈敏捷长安大学汽车运输安全保障技术交通行业重点实验室西安710018 西安比亚迪汽车有限公司西安710018

为方便统计转弯车流量,并提升交叉口转弯车流量的检测速度与精度,提出基于深度学习的方法对城市交叉口转弯车流量进行检测、跟踪和计数。首先,通过对比分析选用轻量高效的YOLOv5s作为目标检测框架,并采用无人机(unmanned aerial vehicle... 详细信息

为方便统计转弯车流量,并提升交叉口转弯车流量的检测速度与精度,提出基于深度学习的方法对城市交叉口转弯车流量进行检测、跟踪和计数。首先,通过对比分析选用轻量高效的YOLOv5s作为目标检测框架,并采用无人机(unmanned aerial vehicle,UAV)航拍方式获取城市交叉口交通流视频,自建车辆航拍图像数据集;利用预训练权重及最新权重文件完成自建数据集的训练与推理;模型评估表明,基于YOLOv5的车辆检测模型具有较高的检测速度与精度:其中模型的box_loss值迅速下降并稳定在0.038,mAP_0.5值迅速上升并保持在0.91附近;之后,对接DeepSORT模型作为后端多车辆跟踪算法,通过坐标转换以简化车辆轨迹提取,并对行驶轨迹线展开有效性判断;针对检测框角点跃变现象,提出角点-质心点坐标变换以强化轨迹点的坐标信息鲁棒性,且采用六次多项式拟合车辆轨迹线,将不满足函数映射要求的轨迹线进行旋转优化,以正常拟合全部轨迹;最后根据预设的转弯角度判定阈值,实现转弯车辆的检测与计数。为验证所提出的转弯车流量检测方法的有效性,以某一城市交叉口为例进行车辆检测实验,对比分析人工计数值和本方法检测结果。结果表明:4个流向平均检测精度为92.9%,最高可达95.7%,能够满足实际交叉口场景转弯车流量的常规检测要求。

关键词：交通信息工程交通流检测深度学习转弯车辆目标检测车辆跟踪

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基于非球形雨衰模型的微波链路雨强反演方法

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物理学报 2017年第15期66卷 152-160页

作者：宋堃高太长刘西川印敏薛杨国防科技大学气象海洋学院南京211101

以T矩阵理论、Gamma谱分布为理论基础,基于Pruppacher-Beard降雨粒子模型,对OTT雨滴谱仪的Gamma谱参数历史资料与降雨强度值进行非线性拟合得到具有实地谱分布的幂律系数,建立适合于本地区的雨衰模型,提出了基于非球形雨衰模型的微波链... 详细信息

以T矩阵理论、Gamma谱分布为理论基础,基于Pruppacher-Beard降雨粒子模型,对OTT雨滴谱仪的Gamma谱参数历史资料与降雨强度值进行非线性拟合得到具有实地谱分布的幂律系数,建立适合于本地区的雨衰模型,提出了基于非球形雨衰模型的微波链路雨强反演方法,分析了温度对模型幂律系数的影响,并开展了15—20 GHz频段的视距微波链路与地面雨滴谱仪的同步观测降雨实验.实验结果表明:反演雨强的相关系数全部高于0.6,最高达到了0.96,RMSE最小值为0.79,累积降雨量的绝对偏差在2.47 mm以内,最小偏差仅为0.28 mm,相对误差低于1.84%.实验结果验证了基于非球形雨衰模型的微波链路雨强反演方法的有效性、准确性和适用性,对于进一步提高微波链路反演降雨精度、改善降水监测效果具有重要意义.

关键词：微波雨衰微波链路链路雨强反演 T矩阵理论

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基于支持向量机的微波链路雨强反演方法

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物理学报 2015年第24期64卷 235-242页

作者：宋堃高太长刘西川印敏薛杨解放军理工大学气象海洋学院南京211101

为提高微波链路雨致衰减反演雨强精度,在Mie散射理论、气体吸收衰减模型以及Gamma雨滴谱分布的基础上,将支持向量机引入到微波链路测量降水中,提出了基于支持向量机的微波链路雨强反演方法,并开展了15—20 GHz频段的视距微波链路与地面... 详细信息

为提高微波链路雨致衰减反演雨强精度,在Mie散射理论、气体吸收衰减模型以及Gamma雨滴谱分布的基础上,将支持向量机引入到微波链路测量降水中,提出了基于支持向量机的微波链路雨强反演方法,并开展了15—20 GHz频段的视距微波链路与地面雨滴谱仪的同步观测降雨实验.实验结果表明,基于支持向量机的微波链路雨强反演模型的反演雨强与实测雨强的相关系数全部高于0.6,最高达到0.9674;雨强的均方根误差最小值为0.5780 mm/h,累积降雨量的绝对最小误差仅为0.0080 mm;相对偏差大部分在10%以内,最小偏差为0.7425%.实验结果验证了基于支持向量机的微波链路雨强反演方法的有效性、准确性和适用性,对于进一步提高微波链路反演降雨精度、改善降水监测效果具有重要意义.

关键词：微波雨衰微波链路链路雨强反演支持向量机

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Overcoming chemoresistance in non-angiogenic colorectal cancer by metformin via inhibiting endothelial apoptosis and vascular immaturity

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Journal of Pharmaceutical Analysis 2023年第3期13卷 262-275页

作者： Guang-Yue Li Shu-Jing Zhang Dong xue Yue-Qi Feng Yan Li Xun Huang Qiang Cui Bo Wang Jun Feng tao Bao Pei-Jun liu Shao-Ying Lu Ji-chang Wang Department of Science and Technology The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an710061China Department of Vascular Surgery The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an710061China Department of General Surgery The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an710061China Center for Translational Medicine The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an710061China Department of Pharmacy Xi'an Jiaotong University Health Science CenterXi'an710061China

The development of chemoresistance which results in a poor prognosis often renders current treatments for colorectal cancer(CRC).In this study,we identified reduced microvessel density(MVD)and vascular immaturity resulting from endothelial apoptosis as therapeutic targets for overcoming *** focused on the effect of metformin on MVD,vascular maturity,and endothelial apoptosis of CRCs with a non-angiogenic phenotype,and further investigated its effect in overcoming *** situ transplanted cancer models were established to compare MVD,endothelial apoptosis and vascular maturity,and function in tumors from metformin-and vehicle-treated *** in vitro co-culture system was used to observe the effects of metformin on tumor cell-induced endothelial *** sequencing was performed for genetic ***-angiogenic CRC developed independently of angiogenesis and was characterized by vascular leakage,immaturity,reduced MVD,and *** phenomenon had also been observed in human ***,non-angiogenic CRCs showed a worse response to chemotherapeutic drugs in vivo than in *** suppressing endothelial apoptosis,metformin sensitized non-angiogenic CRCs to chemo-drugs via elevation of MVD and improvement of vascular *** results showed that endothelial apoptosis was induced by tumor cells via activation of caspase signaling,which was abrogated by metformin *** findings provide pre-clinical evidence for the involvement of endothelial apoptosis and subsequent vascular immaturity in the chemoresistance of non-angiogenic *** suppressing endothelial apoptosis,metformin restores vascular maturity and function and sensitizes CRC to chemotherapeutic drugs via a vascular mechanism.

关键词： Metformin Colorectal cancer Non-angiogenic Endothelial apoptosis Vascular immaturity

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