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精益化护理联合互动式健康教育用于溃疡性结肠炎的效果观察

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中国肛肠病杂志 2024年第7期44卷 71-73页

作者：郭园林河南省洛阳市孟津人民医院河南洛阳471100

目的:探讨精益化护理联合互动式健康教育用于溃疡性结肠炎(UC)的效果。方法:选取2022年6月至2023年12月我院收治的40例UC患者,采用抽签法随机分为观察组和对照组,每组各20例。对照组给予常规护理干预,观察组在常规护理干预基础上给予精... 详细信息

目的:探讨精益化护理联合互动式健康教育用于溃疡性结肠炎(UC)的效果。方法:选取2022年6月至2023年12月我院收治的40例UC患者,采用抽签法随机分为观察组和对照组,每组各20例。对照组给予常规护理干预,观察组在常规护理干预基础上给予精益化护理联合互动式健康教育干预,比较2组患者临床疗效及不良情绪改善情况。结果:观察组患者总有效率高于对照组(100.0%VS80.0%,P<0.05)。干预后,2组患者不良情绪评分均出现不同程度的降低,且观察组低于对照组(P<0.05)。结论:精益化护理联合互动式健康教育可提高UC患者临床治疗效果,改善患者不良情绪,值得临床推广应用。

关键词：溃疡性结肠炎精益化护理互动式健康教育

基于病案首页的老年支气管炎患者住院费用影响因素分析

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中国药物经济学 2024年第6期19卷 12-18,24页

作者：蒋跃旭郭远林贵阳市第一人民医院医务科贵阳550002 国药医疗健康产业有限公司北京100029

目的探讨60岁及以上老年支气管炎患者住院费用的影响因素,为控制住院费用,减轻患者及家庭经济负担提供建议。方法收集2006年1月至2019年12月重庆市两家三甲医院60岁及以上老年支气管炎住院患者病案首页信息,采用单因素分析、多元线性回... 详细信息

目的探讨60岁及以上老年支气管炎患者住院费用的影响因素,为控制住院费用,减轻患者及家庭经济负担提供建议。方法收集2006年1月至2019年12月重庆市两家三甲医院60岁及以上老年支气管炎住院患者病案首页信息,采用单因素分析、多元线性回归和分类回归树模型分析住院费用的影响因素。结果药物费在总住院费用中的构成比呈逐年降低趋势,检查费的构成比逐渐增加。多元线性回归分析结果显示患者住院费用的影响因素有14个,包括性别、抢救、住院时间、输血、特殊护理和手术等,其中医院内感染、住院时间和输血对费用的影响较为显著。结论控制老年支气管炎患者住院费用的重点应集中于检查费用。减少医院内感染,缩短住院时间,鼓励无偿献血保障血液供应有助于降低住院费用。

关键词：支气管炎住院费用多元线性回归分类回归树

Scalable synthesis of A_2S_3 (A=Sb, Bi) submicro/nanowires using their powders via solvothermal proceeding

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Chinese Science Bulletin 2006年第6期51卷 655-660页

作者： JI Tianhao LIU Guanrao QI Xingyi YANG Qinglin DENG yuan guo lin Applied Chemistry Department School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing100083 China

Single-crystal A2S3 (A=Sb, Bi) nanowires were successfully prepared via using their powders as precursors by solvothermal proceeding. The reac-tion temperature and time as well as solvent strongly influence final A2S3 crystalline morphology and size. Experimental results show that Sb2S3 rods prepared in ethylene glycol are thicker than its wires with av-erage diameter of 400 nm prepared in the mixture solvent of ethylene glycol and ethylenediamine at 200 oC for 24 h. However, under the same reaction con-dition, uniform submicrowires of Bi2S3 with average diameter of 150 nm can be obtained. When reaction temperature is decreased to 150 oC and reaction time is 40 h, pure Sb2S3 wires cannot be prepared. The possible mechanism is briefly discussed for the transformation of the Sb2S3 powders to their wire-like crystals.

关键词：低维结构晶形转变硫化物半导体纳米线锑铋

Stable stripe and vortex solitons in two-dimensional spin-orbit coupled Bose-Einstein condensates

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Communications in Theoretical Physics 2024年第6期76卷 26-33页

作者： yuan guo Muhammad Idrees Ji lin Hui-jun Li Institute of Nonlinear Physics and Department of Physics Zhejiang Normal UniversityJinhua 321004China Zhejiang Institute of Photoelectronics and Zhejiang Institute for Advanced Light Source Zhejiang Normal UniversityJinhua 321004China

We present a flexible manipulation and control of solitons via Bose-Einstein *** the presence of Rashba spin-orbit coupling and repulsive interactions within a harmonic potential,our investigation reveals the numerical local solutions within the *** manipulating the strength of repulsive interactions and adjusting spin-orbit coupling while maintaining a zero-frequency rotation,diverse soliton structures emerge within the *** include plane-wave solitons,two distinct types of stripe solitons,and odd petal solitons with both single and double *** stability of these solitons is intricately dependent on the varying strength of spin-orbit ***,stripe solitons can maintain a stable existence within regions characterized by enhanced spin-orbit coupling while petal solitons are unable to sustain a stable existence under similar *** rotational frequency is introduced to the system,solitons undergo a transition from stripe solitons to a vortex array characterized by a sustained *** rotational directions of clockwise and counterclockwise are non-equivalent owing to spin-orbit *** a result,the properties of vortex solitons exhibit significant variation and are capable of maintaining a stable existence in the presence of repulsive interactions.

关键词： Bose-Einstein condensate spin-orbit coupling rotation frequency stripe solitons vortex array

Blind equalization and automatic modulation classification based on subspace for subcarrier MPSK optical communications

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Optoelectronics Letters 2017年第4期13卷 304-308页

作者： CHEN Dan guo lin-yuan WANG Chen-hao KE Xi-zheng School of Automation ＆ Information Xi ＇an University of Technology Xi＇an 710048 China Xi ＇an Polytechnic University Xi ＇an 710048 China

Equalization can compensate channel distortion caused by channel multipath effects, and effectively improve convergent of modulation constellation diagram in optical wireless system. In this paper, the subspace blind equalization algorithm is used to preprocess M-ary phase shift keying(MPSK) subcarrier modulation signal in receiver. Mountain clustering is adopted to get the clustering centers of MPSK modulation constellation diagram, and the modulation order is automatically identified through the k-nearest neighbor(KNN) classifier. The experiment has been done under four different weather conditions. Experimental results show that the convergent of constellation diagram is improved effectively after using the subspace blind equalization algorithm, which means that the accuracy of modulation recognition is increased. The correct recognition rate of 16 PSK can be up to 85% in any kind of weather condition which is mentioned in paper. Meanwhile, the correct recognition rate is the highest in cloudy and the lowest in heavy rain condition.

关键词： Blind equalization Meteorology Nearest neighbor search Optical communication Optical signal processing Optical systems Phase shift keying Signal receivers

Correlation Study on Grain Size Characteristics and Geotechnical Properties of Surface Sediments in Qingdao Offshore Area

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Journal of Ocean University of China 2024年第3期23卷 721-730页

作者： LI Anlong WANG Panpan guo Xijun JI Xiangkun SHEN Kunming lin lin YAN Zhichao yuan lin Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of Education and College of Marine GeosciencesOcean University of ChinaQingdao 266100China College of Marine Geoscience Ocean University of ChinaQingdao 266100China China Construction Second Engineering Bureau Co. LTDYueyang 414000China Tianjin Research Institute for Water Transport Engineering M.O.T.Tianjin 3000456China Lianyungang Xuwei Port Holding Group Co. Ltd.Lianyungang 222042China

The comprehension of sediment grain size parameters and the corresponding sedimentary environment holds paramount importance in elucidating the engineering geological attributes of the subaqueous *** study delineated the sedimentary environment zoning in the northern sea area of Qingdao through cluster analysis of grain size parameters derived from 123 surface sediment *** study analyzed the correlation between sediment geotechnical indices and grain size parameters across diverse sedimentary environments.A correlation equation was established for samples exhibiting a strong *** study found four distinct sedimentary environments in the study area:coastal,transitional,shallow sea,and *** the same sedimentary environment,the average grain size and sorting coefficient exhibit significant correlations with geotechnical indices such as water content,density,shear strength,plastic limit,liquid limit,and plastic ***,notable disparities in the correlation between grain size parameters and geotechnical indices emerge across different sedimentary environments.

关键词： grain size parameters cluster analysis sedimentary environment correlations geotechnical indexes

Restraining growth of Zn dendrites by poly dimethyl diallyl ammonium cations in aqueous electrolytes

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Rare Metals 2024年第8期43卷 3735-3747页

作者： Xiang-Xin Zhang yuan-Qiang Chen Chang-Xin lin yuan-Sheng lin guo-lin Hu Yong-Chuan Liu Xi-Lai Xue Su-Jing Chen Zhan-lin Yang Bai-Sheng Sa Yi-Ning Zhang Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Helmholtz Institute Ulm(HIU) 89081 UlmGermany Karlsruhe Institute of Technology(KIT) 76021 KarlsruheGermany College of Materials Science and Engineering Fuzhou UniversityFuzhou350108China

Metallic zinc is an excellent anode material for Zn-ion batteries,but the growth of Zn dendrite severely hinders its practical ***,an efficient and economical cationic additive,poly dimethyl diallyl ammonium(PDDA) was reported,used in aqueous Zn-ion batteries electrolyte for stabilizing Zn *** growth of zinc dendrites can be significantly restrained by benefiting from the pronounced electrostatic shielding effect from PDDA on the Zn metal ***,the PDDA is preferentially absorbed on Zn(002) plane,thus preventing unwanted side reactions on Zn *** to the introduction of a certain amount of PDDA additive into the common ZnSO_(4)-based electrolyte,the cycle life of assembled Zn‖Zn cells(1 mA·cm^(-2) and 1 mAh·cm^(-2)) is prolonged to more than 1100 *** response to the perforation issue of Zn electrodes caused by PDDA additives,the problem can be solved by combining foamy copper with zinc *** real application,Zn-ion hybrid supercapacitors and MnO_(2)‖Zn cells were assembled,which exhibited excellent cycling stability with PDDA *** work provides a new solution and perspective to cope with the dendrite growth problem of Zn anode.

关键词： PDDA Electrostatic shielding effect Zn anode Zn dendrites

Path-Dependent Progressive Failure Analysis for 3D-Printed Continuous Carbon Fibre Reinforced Composites

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Chinese Journal of Mechanical Engineering 2024年第4期37卷 84-93页

作者： yuan Chen lin Ye School of System Design and Intelligent Manufacturing(SDIM) Southern University of Science and TechnologyShenzhen 518055China Shenzhen Key Laboratory of Intelligent Manufacturing for Continuous Carbon Fibre Reinforced Composites Southern University of Science and TechnologyShenzhen 518055China

In order to predict the damage behaviours of 3D-printed continuous carbon fibre(CCF)reinforced composites,when additional short carbon fibre(SCF)composite components are employed for continuous printing or special functionality,a novel path-dependent progressive failure(PDPF)numerical approach is ***,a progressive failure model using Hashin failure criteria with continuum damage mechanics to account for the damage initiation and evaluation of 3D-printed CCF reinforced polyamide(PA)composites is developed,based on actual fibre placement trajectories with physical measurements of 3D-printed CCF/PA ***,an elastic-plastic model is employed to predict the plastic damage behaviours of SCF/PA ***,the accuracy of the PDPF model was validated so as to study 3D-printed CCF/PA composites with either negative Poisson's ratio or high *** results demonstrate that the proposed PDPF model can achieve higher prediction accuracies in mechanical properties of these 3D-printed CCF/PA *** analyses show that the stress distribution is generally aggregated in the CCF areas along the fibre placement paths,and the shear damage and matrix tensile/compressive damage are the key damage *** study provides a new approach with valuable information for characterising complex 3D-printed continuous fibre-matrix composites with variable mechanical properties and multiple constituents.

关键词： 3D printing Continuous carbon fibre Modelling Energy absorption Negative Poisson's ratio

Reliability-based life-cycle cost seismic design optimization of coastal bridge piers with nonuniform corrosion using different materials

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Earthquake Engineering and Engineering Vibration 2024年第1期23卷 209-225页

作者： Wu Xiangtong yuan Wenting guo Anxin Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of TechnologyHarbin 150090China Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education Harbin Institute of TechnologyHarbin 150090China Institute of Transportation Inner Mongolia UniversityHohhot 010070China

Reinforcement corrosion is the main cause of performance deterioration of reinforced concrete(RC)*** research has been performed to investigate the life-cycle cost(LCC)of coastal bridge piers with nonuniform corrosion using different *** this study,a reliability-based design optimization(RBDO)procedure is improved for the design of coastal bridge piers using six groups of commonly used materials,i.e.,normal performance concrete(NPC)with black steel(BS)rebar,high strength steel(HSS)rebar,epoxy coated(EC)rebar,and stainless steel(SS)rebar(named NPC-BS,NPC-HSS,NPC-EC,and NPC-SS,respectively),NPC with BS with silane soakage on the pier surface(named NPC-Silane),and high-performance concrete(HPC)with BS rebar(named HPC-BS).First,the RBDO procedure is improved for the design optimization of coastal bridge piers,and a bridge is selected to illustrate the ***,reliability analysis of the pier designed with each group of materials is carried out to obtain the time-dependent reliability in terms of the ultimate and serviceability ***,the repair time of the pier is predicted based on the time-dependent reliability ***,the time-dependent LCCs for the pier are obtained for the selection of the optimal design.

关键词： reliability-based design optimization(RBDO) life-cycle cost(LCC) nonuniform corrosion coastal bridge pier repair