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老年髋部骨折患者术后自理能力的影响因素分析及干预策略

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中西医结合护理（中英文） 2024年第7期10卷 117-119页

作者：钱怡卢丹陈丽华江苏省常熟市第二人民医院江苏苏州215500

目的考察老年髋部骨折患者术后自理能力的影响因素及干预策略。方法选取2020年2月至2022年6月在江苏省常熟市第二人民医院经手术治疗的142例老年髋部骨折患者作为研究对象。采用Barthel指数评估患者的术后自理能力(分为基本自理组和不... 详细信息

目的考察老年髋部骨折患者术后自理能力的影响因素及干预策略。方法选取2020年2月至2022年6月在江苏省常熟市第二人民医院经手术治疗的142例老年髋部骨折患者作为研究对象。采用Barthel指数评估患者的术后自理能力(分为基本自理组和不能自理组),分别采用焦虑自评量表(SAS)、抑郁自评量表(SDS)和Harris评分评估患者的心理状态和髋关节功能。先行单因素分析探究各临床特征对患者术后自理能力的影响,对于存在统计学意义的特征,采用多因素Logistic回归分析探究其术后自理能力的影响因素。结果142例老年髋部骨折患者的术后平均Barthel指数评分为(66.29±7.28)分,其中98例(69.01%)患者的日常生活可基本自理,44例(30.99%)患者的日常生活不能自理。单因素分析结果显示,围手术期出现下肢静脉血栓(DVT)、术前白蛋白水平、年龄、术后医护人员康复指导、焦虑和(或)抑郁状态,以及术前Harris评分均是髋部骨折患者术后自理能力的影响因素(P均<0.05)。多因素分析结果显示,年龄≥70岁、术前白蛋白水平<35 g/L、围手术期出现DVT、术后无医护人员康复指导、合并焦虑和(或)抑郁状态,以及术前Harris评分<50分均是老年髋部骨折患者术后自理能力的危险因素(P均<0.05)。结论超过三成的老年髋部骨折患者术后生活不能自理,年龄过大、焦虑和(或)抑郁状态、术前营养不良、术前髋关节功能较差、围手术期出现DVT和术后无医护人员康复指导均是影响患者术后自理能力的危险因素,临床应予以针对性的干预策略。

关键词：髋部骨折老年术后自理能力影响因素干预策略

近红外二区光驱动的光动力治疗在克服肿瘤乏氧环境中的研究进展

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应用化学 2024年第7期41卷 925-936页

作者：杨懿芊严晓霞彭皓吴爱国杨方上海大学化学系上海200444 中国科学院宁波材料技术与工程研究所先进诊疗材料与技术实验室中国科学院宁波材料技术与工程研究所宁波315201 先进能源科学与技术广东省实验室惠州516000

光动力疗法因其具有非侵入性、低毒性、高时空选择性和特异靶向性等独特优势而被广泛应用于肿瘤治疗。该疗法利用光敏剂、光和氧分子,通过光敏剂介导产生活性氧自由基导致氧化损伤选择性地引起靶细胞的凋亡和坏死。然而,传统光动力疗法... 详细信息

光动力疗法因其具有非侵入性、低毒性、高时空选择性和特异靶向性等独特优势而被广泛应用于肿瘤治疗。该疗法利用光敏剂、光和氧分子,通过光敏剂介导产生活性氧自由基导致氧化损伤选择性地引起靶细胞的凋亡和坏死。然而,传统光动力疗法仍存在一些缺点,如光的组织穿透性有限、分子氧依赖以及肿瘤对治疗的固有障碍,这在很大程度上限制了肿瘤治疗效果。近些年来,国内外科研团队积极开发各种新型光敏剂,并将其与近红外光激发相结合,使得光动力疗法能够更深入地作用于肿瘤组织。针对深层肿瘤组织乏氧环境,进一步采取改善、利用该肿瘤微环境的策略,克服深层肿瘤组织缺氧对光动力疗法的限制,有助于优化肿瘤抑制效果。本文在阐明光动力疗法工作机制的基础上,系统总结讨论了近5年来近红外二区激光激发的光动力疗法在克服肿瘤乏氧障碍的最新进展,包括增加肿瘤组织内部氧含量和通过耐受缺氧环境2种方式针对性开发新型光敏剂,并对其发展前景进行了展望。

关键词：纳米材料光动力治疗肿瘤治疗近红外二区乏氧

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LATTICE BOLTZMANN METHOD SIMULATIONS FOR MULTIPHASE FLUIDS WITH REDICH-KWONG EQUATION OF STATE

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Journal of Hydrodynamics 2011年第6期23卷 814-819页

作者： WEI yi-kun qian Yue-hong Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 ShanghaiChina

In this article we state that the compression factor of the Redlich-Kwong Equation Of State （EOS） is smaller than that of van der Waals EOS. The Redlich-Kwong EOS is in better agreement with experimental data on coexistence curves at the critical point than the van der Waals EOS. We implement the Redlich-Kwong EOS in the Lattice Boltzmann Method （LBM） simulations via a pseudo-potential approach. We propose a new force, which can obtain computational stationary and reach larger density ratio. As a result, multi-phase flows with large density ratio （up to 1012 in the stationary case） can be simulated. We perform four numerical simulations, which are respectively related to single liquid droplet, vapor-liquid separation, surface tension and liquid coalescence of two droplets.

关键词： Redlich-Kwong equation of state lattice Bhatager-Gross-Krook models numerical simulations phase transition

Produced-water treatment: Application and research of combined fiber coalescence technique in offshore oilfield

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Petroleum Science 2023年第1期20卷 569-576页

作者： Pin-yi Dai yi-qian Liu Hao Lu Yu-Dong Li qiang Yang School of Mechanical and Power Engineering East China University of Science and TechnologyShanghai200237China

When the process of extraction of oil from an offshore oilfield enters the advanced stages,the water content in the extracted fluid can be above 90%.The water quality is complex with many types of pollutants and highly emulsified ***,a key consideration in the production process of offshore oilfields is the efficient and economical treatment of the oil-containing produced water to make it suitable for discharge and recover oil *** this study,we developed a hydrophilic and hydrophobic combined fiber coalescence separator with composite fiber shapes using fiber induction and X/*** separator is designed based on experimental observations of the mechanism of structure coalescence in the physical oil removal method.A pilot test was performed on an oil exploration platform in the Bohai *** the designed flow rate,the separator reduced the total concentration of petroleum in the produced water from 2000 to 3000 mg/L to below 60 mg/L,with an average oil removal efficiency of 98.24%.Furthermore,it effectively reduced the number of organic compounds present in the water from 120 to 17 and removed 70% of the *** test results show that the proposed device can be used fr produced-water treatment on offshore platforms.

关键词： Combined fiber coalescence Production water Oil-water separation X/U weaving

Decolorization of reactive brilliant red K-2BP by white rot fungus under sterile and non-sterile conditions

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Journal of Environmental Sciences 2006年第3期18卷 428-432页

作者： GAO Da-wen WEN Xiang-hua qian yi State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environment Science and Engineering TsinghuaUniversity Beijing 100084 China.

Almost all the studies both domestic and international using white rot fungus for dye wastewater treatment are performed under sterile conditions. However, it is obviously unpractical that wastewater with dyes is treated under sterile conditions. A feasible study was made for using white rot fungus Phanerochaete chrysosporium to degrade reactive brilliant red K-2BP dye under non-sterile conditions. The results showed that there was no decolorizing effect under non-sterile condition if white rot fungus was incubated under non-sterile condition, and the decolorization was always near to 0% during decolorizing test for 3 d; in the meantime, a lot of yeast funguses were found in liquid medium when white rot fungus was incubated under non-sterile conditions; however, if white rot fungus was incubated under sterile condition firstly, its decolorization was above 90% under non-sterile condition, which was similar to that of sterile condition. So we point out that the treating process for wastewater with dyes should be divided into two stages. The first stage is that white rot fungus should be incubated under sterile conditions, and the second stage is that reactive brilliant red K-2BP is decolorized under non-sterile conditions. The method not only save the operation cost which decolorizing reactive brilliant red K-2BP under sterile condition, but also provide the feasibility for using white rot fungus to degrade wastewater with dyes under non-sterile conditions.

关键词： white rot fungus Phanerochaete chrysosporium reactive brilliant red K-2BP decolorization non-sterile condition

深静脉血栓风险评估指导下的个体化康复干预在股骨颈骨折患者中的应用

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中西医结合护理（中英文） 2024年第1期10卷 109-111页

作者：卢丹钱怡陈丽华江苏省常熟市第二人民医院北区江苏苏州215500

目的考察深静脉血栓(DVT)风险评估指导下的个体化康复干预在股骨颈骨折患者护理中的应用。方法根据干预方法的差异将2020年8月至2022年10月于江苏省常熟市第二人民医院行手术治疗的120例股骨颈骨折患者分为观察组(DVT风险评估指导下的... 详细信息

目的考察深静脉血栓(DVT)风险评估指导下的个体化康复干预在股骨颈骨折患者护理中的应用。方法根据干预方法的差异将2020年8月至2022年10月于江苏省常熟市第二人民医院行手术治疗的120例股骨颈骨折患者分为观察组(DVT风险评估指导下的个体化康复干预)和对照组(常规康复干预),各60例。比较2组的下肢血流速度等观察指标。结果干预1个月后,2组的下肢血流速度均快于干预14 d后,血浆D-二聚体水平均低于干预14 d后(P均<0.05);干预14 d和1个月后,观察组均优于同期对照组(P均<0.05),且2组均优于干预前(P均<0.05)。与干预1个月后的功能独立性量表、简化Fugl-Meyer下肢运动功能量表、Barthel指数和Harris髋关节量表评分相比,2组在干预3个月后的评分均提高(P均<0.05);与同期对照组相比,观察组在干预1个月和3个月后的上述评分均更高(P均<0.05),且2组均高于干预前(P均<0.05)。观察组的并发症总发生率低于对照组(P<0.05)。结论DVT风险评估指导下的个体化康复干预可改善股骨颈骨折患者的下肢血流速度、凝血功能指标、下肢运动功能和髋关节功能,提高其功能独立性和日常生活能力,且能减少术后并发症的发生。

关键词：股骨颈骨折深静脉血栓风险评估个体化康复干预下肢血流速度髋关节功能

The total flow control equations and the characteristics of unsteady gradually varied flow in open channels

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Journal of Hydrodynamics 2019年第1期31卷 177-185页

作者： Shi-he Liu qian-yi Zhao Qiu-shi Luo State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China Yellow River Engineering Consulting Co. LtdZhengzhou 450003China

Most unsteady channel flows in nature and practical engineering appear as gradually varied ones,and in the free surface,the deformation conforms to the long wave ***-dimensional total flow models were usually used to for the numerical simulation of long-term and long-distance reaches to describe the water movements,however,the models lack a clear relationship between the three-dimensional flow field and the total flow ***,few studies of the variations of the roughness coefficient against the time in unsteady flows were *** following results are obtained through the theoretical analysis and the numerical simulations in this paper.(1) One-dimensional total flow control equations of the unsteady gradually varied flow in open channels are obtained directly from the mathematical model of the viscous fluid motion,and can both reflect the influence of the turbulence and provide an explicit expression of the energy slope *** equations establish a direct connection between the descriptions of the three-dimensional flow fields and the one-dimensional total flows.(2) Synchronous prototype observation data and planar two-dimensional numerical simulation results are used to extract the one-dimensional total flow information and discuss the total flow characteristics.(3)The orders of magnitude for terms in the total flow motion equation are compared,and the variation of the roughness coefficient against the time is analyzed.

关键词： Open channel unsteady flow total flow characteristics control equations

Preliminary control of the air entrainment in bow wave based on the Liutex force method

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Journal of Hydrodynamics 2022年第3期34卷 483-490页

作者： yi-ding Hu Jian-wei Wu De-cheng Wan Guo Wang yi-qian Wang Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Wuhan Second Ship Design and Research Institute Wuhan430205China Marine Design and Research Institute of China Shanghai200011China School of Mathematical Science Soochow UniversitySuzhou215006China

Trails induced by air entrainment of bow wave breaking can be observed clearly around an advancing ship,making it prong to be detected and causing reduction in hydrodynamic *** breaking bow wave region,different scale of coherent vortex structures related closely to the air entrainment are *** formation and evolution of bubble clouds can be accounted partly by the swirling vortex flow of the jet *** this work,high-fidelity simulation of the bow wave breaking around a rectangular thin plate is performed with the in-house code BAMR-SJTU.A Liutex force model is constructed to investigate the interaction between the free surface and vortices,and to explore the possibility of alleviating or controlling the air *** study is the first attempt to manipulate vortices corresponding to the air entrainment of the bow wave *** typical vortex structures based on the Liutex vortex identification method and the distribution of the vortex force are *** of the vortex structures and the entrapped bubbles is conducted to illustrate the efficiency of Liutex force model in air entrainment control.

关键词： Bow wave breaking air entrainment coherent vortex structures Liutex force field model

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挠性印制电路板板边插头的优化设计

印制电路信息 2024年第3期32卷 40-45页

作者：钱燚翟可鹏冯卓珠海景旺柔性电路有限公司广东珠海519000 广东省精密柔性电路工程技术研究中心广东珠海519000 景旺电子科技(龙川)有限公司广东河源517373

高频高速挠性印制电路板(FPCB)信号传输过程中易出现反射、串扰等影响信号完整性的损耗。从线路的仿真设计与实际测试差异着手分析,对影响FPCB板边插头信号完整性的损耗进行研究,从插入损耗波形出现谐振点的测试结果分析串扰的影响,提... 详细信息

高频高速挠性印制电路板(FPCB)信号传输过程中易出现反射、串扰等影响信号完整性的损耗。从线路的仿真设计与实际测试差异着手分析,对影响FPCB板边插头信号完整性的损耗进行研究,从插入损耗波形出现谐振点的测试结果分析串扰的影响,提出降低信号损耗的设计理念,为解决因FPCB板边插头设计不合理,使得信号传输过程中插入损耗出现谐振点的问题提供改善思路。

关键词：信号完整性挠性印制电路板传输线传输线损耗板边插头