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Observation on the Risk of Falling and Self-efficacy in Elderly Patients with Hip Fracture

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Journal of Clinical and Nursing Research 2019年第4期3卷 5-8页

作者： Zongyou Mou Ke Song jinquan guo Department of Joint Surgery Dezhou People’s Hospital1751 Xinhu RoadDezhouShandong253014China

Objectives:To study the risk of falling and self-efficacy in elderly patients with hip ***:Forty elderly patients with hip fractures that were caused by falling were admitted into our hospital from April 2018 to April 2019,and were enrolled into this *** patients were assessed by using the Morse Fall Scale(MFS)and Falls Efficacy Scale(FES).The basic situation of the patients with hip fractures caused by falling and the scores of MFS and FES before and after falling were ***:Results showed that the number of patients with femoral neck fractures accounted for 70%out of all patients,and the number of patients with intertrochanteric fractures accounted for the remaining 30%of the *** number of patients with academic qualification below primary school is 16,the number of patients with middle high school education is 11 and the number of patients with high school education and above is *** is the cause of hip fracture that accounted for the most in patients,followed by outing activities,whereas least patients with hip fractures was caused by falling in nursing *** were 29 patients’who used crutches or walking aids and this number was more than that of those who required the *** the MFS and FES analyses,the results(scores of MFS and FES)showed that the risk before the fall was *** contrast,the risk of fracture and post-surgery after the fall was greatly ***:The elderly patients with hip fractures were found to have increased risk of falling and thus,these patients require good care.

关键词： elderly hip fracture risk of falling selfefficacy

The TaTCP4/10-B1 cascade regulates awn elongation in wheat(Triticum aestivum L.)

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Plant Communications 2023年第4期4卷 255-270页

作者： Wensheng Ke Jiewen Xing Zhaoyan Chen Yidi Zhao Weiya Xu Lulu Tian jinquan guo Xiaoming Xie Dejie Du Zihao Wang Yufeng Li Jin Xu Mingming Xin Weilong guo Zhaorong Hu Zhenqi Su Jie Liu Huiru Peng Yingyin Yao Qixin Sun Zhongfu Ni Frontiers Science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and Utilization(MOE)Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China

Awns are important morphological markers for wheat and exert a strong physiological effect on wheat *** awn elongation suppressor B1 has recently been cloned through association and linkage analysis in ***,the mechanism of awn inhibition centered around B1 remains to be ***,we identified an allelic variant in the coding region of B1 through analysis of re-sequencing data;this variant causes an amino acid substitution and premature termination,resulting in a long-awn *** analysis indicated that B1 inhibited awn elongation by impeding cytokinin-and auxinpromoted cell ***,B1 directly repressed the expression of TaRAE2 and TaLks2,whose orthologs have been reported to promote awn development in rice or *** importantly,we found that TaTCP4 and TaTCP10 synergistically inhibited the expression of B1,and a G-to-A mutation in the B1 promoter attenuated its inhibition by TaTCP4/*** together,our results reveal novel mechanisms of awn development and provide genetic resources for trait improvement in wheat.

关键词： TaTCP4/10 B1 awn length haplotype wheat

The bending and vibration responses of functionally graded piezoelectric nanobeams with dynamic flexoelectric effect

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The bending and vibration responses of functionally graded p...

中国力学大会-2021+1

作者： Pengfei Yu Weifeng Leng Liming Peng Yaohong Suo jinquan guo Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control School of Mechanical Engineering and Automation Fuzhou University State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering Xi'an Jiaotong University

Dynamic flexoelectric effect refers to the coupling between polarization and acceleration of a material, which is usually ignored in previous works. However, when the thickness of the beam decreases to nanometer scale, the strain gradient increases sharply, it is not accurate to only consider the static flexoelectric effect. The aim of this manuscript is to study the static bending and vibration frequency of the functional gradient piezoelectric nanobeam with the dynamic flexoelectric effect. The governing equations and boundary conditions are derived from variational principle. Different from the classical electric Gauss equations, electric field equilibrium equation has be amended in this manuscript. Then, parameter studies are given to examine the influence of dynamic flexoelectric effect coefficient, applied voltage and gradient index on the static deformations and free vibration frequencies of FGM piezoelectricity nanobeam. The numerical results show that the dynamic flexoelectric effect are significant in investigation on higher-order vibration modes of FGM nanobeam, while gradient index has a vital influence on dimensionless frequency of each mode. In addition, it is observed that the effective stiffness is obviously affected by the gradient index, piezoelectricity and flexoelectricity. The model is helpful to supply some useful guidelines for designing energy harvesting devices at nanometer scale.

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卤烃和水合氧化镁对聚丙烯协同阻燃机理

厦门大学学报（自然科学版） 1989年第6期28卷 613-617页

作者：郭金全厦门大学化学系

卤烃(尤其溴烃)和水合氧化镁对聚丙烯(PP)具有协同阻燃作用,在含80phr 水合氧化镁的 PP体系中,添加 10 Phr 六溴环十二烷(HBCD),可使氧指数(OI)达到 34％,阻燃性能从 G84 609—84/FV—2 级提高到 GB4 609—84/FV—0级。本文中着重研究... 详细信息

卤烃(尤其溴烃)和水合氧化镁对聚丙烯(PP)具有协同阻燃作用,在含80phr 水合氧化镁的 PP体系中,添加 10 Phr 六溴环十二烷(HBCD),可使氧指数(OI)达到 34％,阻燃性能从 G84 609—84/FV—2 级提高到 GB4 609—84/FV—0级。本文中着重研究其协同阻燃机理,提出了碱性水合氧化镁促进溴烷释出 HBr,HBr可与水合氧化镁分解的氧化镁生成 MgBr_2,后者又与水合氧化镁脱出的水汽作用,重新生成HBr,从而延长HBr在燃烧区域的停滞时间,是产生这种协同阻燃效应的原因。

关键词：聚丙烯阻燃机理卤代烃氧化镁

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清水河桥质量检测与评价

公路交通科技 1989年第2期6卷 16-27页

作者：张劲泉国天逵

本文结合清水河桥质量检测工作介绍了桥梁质量检测的一般方法以及一些成熟的无损检测技术在桥梁上的应用,提出了老龄混凝土匀质性和强度的评定方法,论述了混凝土内钢筋锈蚀活化的综合判断问题。此外,文中还就裂缝种类和成因作了较为详... 详细信息

本文结合清水河桥质量检测工作介绍了桥梁质量检测的一般方法以及一些成熟的无损检测技术在桥梁上的应用,提出了老龄混凝土匀质性和强度的评定方法,论述了混凝土内钢筋锈蚀活化的综合判断问题。此外,文中还就裂缝种类和成因作了较为详细的分析,并对裂缝的评定问题作了初步的探讨。

关键词：桥梁质量检测评价

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智能坐便器流噪声数值模拟及实验验证

噪声与振动控制 2023年第5期43卷 20-25页

作者：郭金泉徐志猛黄惠福州大学机械工程及自动化学院福州350108 福州大学流体动力与电液智能控制福建省高校重点实验室福州350108

以某款智能坐便器为研究对象,利用逆向工程技术进行建模,获得智能坐便器三维模型。采用Fluent和***联合仿真方法,对智能坐便器虹吸破坏时刻流噪声进行数值模拟,并通过实验对模拟结果进行了验证;基于数值模拟结果分析了智能坐便器空间声... 详细信息

以某款智能坐便器为研究对象,利用逆向工程技术进行建模,获得智能坐便器三维模型。采用Fluent和***联合仿真方法,对智能坐便器虹吸破坏时刻流噪声进行数值模拟,并通过实验对模拟结果进行了验证;基于数值模拟结果分析了智能坐便器空间声场指向性分布。结果表明:采用联合仿真方法对智能坐便器虹吸破坏时刻的流噪声进行数值模拟,各主要监测点噪声数值模拟结果与实验结果偏差均在7%以内,验证了方法的可行性。该智能坐便器空间噪声辐射有明显指向性,辐射噪声频谱图表现为宽频特性。研究结果可为后续智能坐便器降噪优化提供一定参考。

关键词：声学智能坐便器流噪声联合仿真

激光测高卫星波形饱和识别与测高误差改正初步研究

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遥感学报 2022年第8期26卷 1674-1684页

作者：郭金权李国元裴亮么嘉棋聂胜辽宁工程技术大学测绘与地理科学学院阜新123000 自然资源部国土卫星遥感应用中心北京100048 山东科技大学测绘科学与工程学院青岛266590 中国科学院空天信息创新研究院数字地球重点实验室北京100094

激光测高仪回波波形饱和现象客观存在,为增加可用激光点数目、提高饱和波形测高精度,本文提出了一种波形饱和识别与测高误差改正方法,首先,利用回波波形峰度系数对饱和波形进行识别,然后,针对饱和现象对波形高斯拟合的影响,计算高斯拟... 详细信息

激光测高仪回波波形饱和现象客观存在,为增加可用激光点数目、提高饱和波形测高精度,本文提出了一种波形饱和识别与测高误差改正方法,首先,利用回波波形峰度系数对饱和波形进行识别,然后,针对饱和现象对波形高斯拟合的影响,计算高斯拟合波形与原始波形相交区域的形心位置,以形心位置差异确定因波形饱和导致的测高误差并改正。最后,采用ICESat/GLAS(Ice,Cloud and land Elevation Satellite/Geo-scienceLaser Altimeter System)在青海湖、纳木错、色林错采集的波形数据进行实验。结果表明,经本文算法改正后数据误差均值为0.03 m,大型湖泊区域可实现约0.05 m的测高精度,结合峰度的饱和识别方法可以对波形进行有效筛选,可发现GLAS遗漏的饱和波形,饱和改正算法可以有效改正波形饱和引起的测高误差,改正后精度明显优于GLAS提供的饱和改正结果,相关结论对高分七号卫星激光波形处理有一定参考价值。

关键词：卫星激光测高波形饱和误差改正 ICESat/GLAS 高分七号

波叠加法在机械噪声故障特征提取中的应用研究

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机械强度 2007年第6期29卷 900-903页

作者：薛玮飞郭金泉陈进杨晓翔上海交通大学振动冲击噪声国家重点实验室上海200240 福州大学机械工程及自动化学院福州350002

声学故障诊断中,测量到的噪声信号是现场所有声信号的混合。为提取待诊设备噪声故障特征,建立机器系统的多声源宽带相关混合声场模型,使用波叠加法重建源表面为任意形状的空间声压场分布,计算出未知声源的数目与位置。提出的算法具有计... 详细信息

声学故障诊断中,测量到的噪声信号是现场所有声信号的混合。为提取待诊设备噪声故障特征,建立机器系统的多声源宽带相关混合声场模型,使用波叠加法重建源表面为任意形状的空间声压场分布,计算出未知声源的数目与位置。提出的算法具有计算速度快、重建精度高,能够消除其他噪声源信号的干扰,从较小的信噪比的观测信号中分离待监测源信号的功率谱,有效提取机械噪声故障特征。实验结果验证模型与算法的可行性。

关键词：故障诊断波叠加法机械噪声特征提取

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管道振动引起辐射噪声场的有限元分析

力学与实践 2006年第1期28卷 36-40,35页

作者：郭金泉杨晓翔福州大学化学化工学院福州350002

对于管束振动引起的辐射声场的分析,利用解析法较为困难．运用有限元分析法对管道耦合振动噪声进行了比较系统的分析,得到一系列有益结果,为振动噪声控制提供了理论依据．

关键词：管道振动辐射噪声有限元分析流固耦合