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Development and Validation of a Nomogram for Prediction of the Risk of MAFLD in an Overweight and Obese Population

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Journal of Clinical and Translational Hepatology 2022年第6期10卷 1027-1033页

作者： Di Song Qian Ge Ming chen Song Bai xiaoshu Lai Gege Huang Mengmeng Liu Miaofang Lin Jinfeng Xu Fajin Dong Department of Ultrasonography Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan UniversityFirst Affiliated HospitalSouthern University of Science and TechnologyShenzhenGuangdongChina Department of Nutrition Shenzhen People’s HospitalSecond Clinical Medical CollegeJinan UniversityFirst Affiliated HospitalSouthern University of Science and TechnologyShenzhenGuangdongChina

Background and Aims:Metabolic associated fatty liver disease(MAFLD)is a serious condition,and a simple meth-od is needed for practitioners to identify patients with the disease and have a high risk of disease ***-ods:We developed and validated a nomogram for fatty liver disease and reclassified the risk factors for *** development cohort had 335 patients who received bioel-ectrical impedance analysis and liver ultrasound attenua-tion measurements at Shenzhen People’s Hospital between September 2020 and June *** validation cohort had 200 patients from other hospitals who received the same evaluation.A random forest procedure and binary logistic analysis were used to screen for risk factors,establish a fatty liver disease predictive model,and forecast the risk of *** performance of the nomogram was evaluated by measurement of discrimination,calibration,and clinical ***:The nomogram provided good predic-tions in a model that included body mass index(BMI)and waist *** areas under the curve of the nom-ogram were 0.793 in the development cohort and 0.774 in the validation *** nomogram performed well for calibration,category-free net reclassification improvement,and integrated discrimination *** curve analysis indicated the nomogram performed better than BMI for predicting net ***:The nomo-gram was an effective screening tool for fatty liver disease,and for those overweight individuals,may help physicians make appropriate decisions regarding treatment of MAFLD.

关键词： MAFLD Obesity Nomogram Body composition Liver ultrasound attenuation,LiSA.

Estimation of particle depth from two defocused images using the Fourier transform

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Particuology 2020年第2期18卷 48-54页

作者： Wu Zhou Xu Luo Benting chen Yukun Zhang xiaoshu Cai School of Energy and Power Engineering University of Shanghai for Science and TechnologyShanghai 200093China Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering Shanghai 200093China

Depth from defocus is one technology for depth *** estimate particle depth information from two defocused images captured simultaneously by two coaxial cameras with different imaging *** images are processed with the Fourier transform to obtain the characteristic parameter(i.e.,the standard deviation of the relative blur kernel of these two defocused images).First,we theoretically analyze the functional relationship between the object depth and the standard deviation or variation of the relative blur ***,we verify the relationship *** analyze the influence of particle size,window size and image noise on the calibration curves using both numerical simulations and *** obtain the depth range and accuracy of this measurement system *** the verification experiments,we use a sample of glass microbeads and the irregularly-shaped dust particles on a microscope *** of these experiments present a suitable depth measurement ***,we apply the measuring system to the depth estimation of drops from a small anti-fogging *** results show that our system and image processing algorithm are robust for different types of particles,facilitating the in-line three-dimensional positioning of particles.

关键词： Depth from two defocused images Fourier transform Standard deviation of relative blur kernel Drops depth measurement Sensitivity and accuracy analysis

5E康复护理对粉碎性髌骨骨折术后患者的干预效果分析

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护理实践与研究 2024年第6期21卷 918-923页

作者：崔永琴张笑舒王丽华陈珂吕慧珠曹佳鑫杨玲许昌市中心医院骨科一病区河南省许昌市461000 首都医科大学附属北京同仁医院皮科北京市100730

目的研究基于教育-鼓励-运动-工作-评估(education-encouragement-exerciseemployment-evaluation,5E)的康复护理在粉碎性髌骨骨折术后患者的应用效果。方法选取2020年7月—2022年6月医院就诊的粉碎性髌骨骨折患者96例作为研究对象,按... 详细信息

目的研究基于教育-鼓励-运动-工作-评估(education-encouragement-exerciseemployment-evaluation,5E)的康复护理在粉碎性髌骨骨折术后患者的应用效果。方法选取2020年7月—2022年6月医院就诊的粉碎性髌骨骨折患者96例作为研究对象,按照组间基本特征具有可比性的原则分为观察组与对照组,每组48例,两组均接受手术治疗,对照组采用常规护理模式,观察组在此基础上予以基于5E的康复护理。比较两组广泛性焦虑量表(GAD-7)评分、健康问卷抑郁症状群(PHQ-9)评分、简易应对方式量表(SCSQ)评分、Lysholm膝关节评分、HSS膝关节功能评分及并发症发生率。结果干预后4周,观察组患者GAD-7、PHQ-9评分低于对照组,差异有统计学意义(P<0.05);观察组患者积极应对评分高于对照组,消极应对评分低于对照组,差异有统计学意义(P<0.05);观察组患者Lysholm、HSS评分低于对照组,差异有统计学意义(P<0.05);观察组患者并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论基于5E的康复护理,能减轻粉碎性髌骨骨折患者消极心理状态,提高其积极应对能力,有利于降低并发症发生率,改善膝关节功能。

关键词：康复护理粉碎性髌骨骨折并发症膝关节功能心理状态

In-line imaging measurements of particle size,velocity and concentration in a particulate two-phase flow

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Particuology 2014年第2期12卷 106-113页

作者： Xiaozhen chen Wu Zhou xiaoshu Cai Mingxu Su Hailong Liu Institute of Particle and Two-phase Flow Measurement University of Shanghai for Science and Technology

A novel method is developed for in-line measurements of particle size, velocity and concentration in a dilute, particulate two-phase flow based on trajectory image processing. The measurement system consists of a common industrial CCD camera, an inexpensive LED light and a telecentric lens. In this work, the image pre-processing steps include stitching, illumination correction, binarization, denoising, and the elimination of unreal and defocused particles. A top-hat transformation is found to be very effective for the binarization of images with non-uniform background illumination. Particle trajectories measured within a certain exposure time are used to directly obtain particle size and velocity. The particle concentration is calculated by using the statistics of recognized particles within the field of view. We validate our method by analyzing experiments in a gas-droplet cyclone separator. This in-line image processing method can significantly reduce the measurement cost and avoid the data inversion process involved in the light scattering method.

关键词： In-line measurements Particle trajectory Image processing Multi-parameters

Private Car Travel Characteristics and Influencing Factors in Chinese Cities——A Case Study of Guangzhou in Guangdong,China

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Chinese Geographical Science 2009年第4期19卷 325-332页

作者： CAO xiaoshu chen Hemei LI Linna ZHEN Feng School of Geography and Planning Sun Yat-Sen University Guangzhou 510275 China School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese *** the research indicated,trip purposes of private car travel are mainly commute and business affairs with a more flexible trip in the urban core *** trip intensities are concentrated in a certain extent,with trip frequency being lower in the urban core area than the peripheral *** addition,the trip time has two significant peaks occurring in the morning and afternoon,and one trough in the *** trip spatial distribution is mainly within commute with both residence and employment in urban area and inward commute with residence in suburban area while employment in urban *** kinds of commutes direct to the urban *** study also shows that the characteristics of private car travel are principally influenced by two aspects:travelers' attributes and urban *** main travelers' social and economic attributes influenced it include the gender,education attainment,age,driving experience and per capita monthly household *** urban characteristics influenced it mainly cover the land use pattern,public traffic facilities and spatial attributes of residential environment.

关键词：城市核心私家车广州市影响因素广东省中国土地利用模式公共交通设施

Parameter transferability across spatial resolutions in urban hydrological modelling:a case study in Beijing,China

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Frontiers of Earth Science 2019年第1期13卷 18-32页

作者： xiaoshu HOU Lei chen Xiang LIU Miao LI Zhenyao SHEN State Key Laboratory of Water Environment Simulation School of EnvironmentBeijing Normal UniversityBeijing 100875China School of Environment Tsinghua UniversityBeijing 100084China

This study examined the influence of spatial resolution on model parameterization,output,and the parameter transferability between different resolutions using the Storm Water Management ***-resolution models,in which most subcatchrnents were homogeneous,and high-resolution-based low-resolution models (in 3 scenarios)were constructed for a highly urbanized catchment in *** results indicated that the parameterization and simulation results were affected by both spatial resolution and rainfall *** simulated peak inflow and total runoff volume were sensitive to the spatial resolution,but did not show a consistent ***-resolution models performed very well for both calibration and validation events in terms of three indexes:1)the Nash-Sutcliffe efficiency, 2)the peak flow error,and 3)the volume error;indication of the advantage of using these *** parameters obtained from high-resolution models could be directly used in the low-resolution models and performed well in the simulation of heavy rain and torrential rain and in the study area where sub-area routing is ***,sub-area routing should be considered and estimated *** successful scale conversion from high spatial resolution to low spatial resolution is of great significance for the hydrological simulation of ungauged large areas.

关键词： SWMM high resolution low resolution rainfall characteristics parameter transferability

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东北早熟区花生品种产量优化分析

东北农业科学 2018年第4期43卷 7-10页

作者：陈小姝刘海龙高华援吕永超王绍伦孙晓苹李春雨李庆鹏陈铭钢吉林省农业科学院花生研究所吉林公主岭136100 吉林省农业科学院经济作物研究所吉林范家屯136105

本研究对吉林省近年来选育、引进综合性状较好的10份花生新品种在吉林不同生态区域的5个试验点进行对比试验。应用Shukla稳定性方差分析方法确定适宜吉林省不同生态环境区域的花生新品种,同时综合评价不同品种在不同生态环境区域的丰产... 详细信息

本研究对吉林省近年来选育、引进综合性状较好的10份花生新品种在吉林不同生态区域的5个试验点进行对比试验。应用Shukla稳定性方差分析方法确定适宜吉林省不同生态环境区域的花生新品种,同时综合评价不同品种在不同生态环境区域的丰产性、稳定性与适应性。试验结果表明,吉花19和吉花20增产达到极显著水平,稳产性好,建议在全省花生产区作为主推品种示范推广;双花2号、青花6号、吉花11和吉花4号产量中等,稳产性一般,建议作为搭配品种推广应用。

关键词：花生生态区域稳产性 Shukla方差分析

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微波辅助干燥技术的应用进展

中国陶瓷工业 2007年第6期14卷 30-33页

作者：税安泽王书媚刘平安曾令可王慧程小苏华南理工大学材料科学与工程学院广州510640

微波辅助干燥是一种比微波干燥更有优势、应用前景更广的干燥技术,它结合了微波干燥和传统干燥技术的优点。本文主要阐述了微波辅助干燥的原理、特点以及在国内外的研究和应用现状,同时对该技术在陶瓷坯体干燥中的应用进行了分析。

关键词：微波干燥微波辅助干燥陶瓷坯体

Research and experiment of a novel flower transplanting device using hybrid-driven mechanism

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International Journal of Agricultural and Biological Engineering 2020年第2期13卷 92-100页

作者： Xiong Zhao xiaoshu Zhang Qingpei Wu Li Dai Jianneng chen Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech UniversityHangzhou 310018China Key Laboratory of Zhejiang Transplanting Equipment Technology Hangzhou 310018China

Aiming at decreasing the component complexity and cost of flower transplanting machine,an integrated transplanting method for picking and planting flower seedlings was proposed,and a hybrid-driven five-bar parallel mechanism was designed.A“beak-shaped”trajectory was designed for integrated transplanting requirements,and meantime,either the posture requirements of transplanting claw were *** on the transplanting trajectory of the mechanism,a corresponding mathematical model for solving the link parameters was established,and then the five-bar mechanism was divided into two bar groups,optimization was conducted in two steps based on genetic algorithm and NSGA-II ***,the optimal solution of the hybrid-driven five-bar parallel mechanism for flower seedling transplanting was *** with similar designs,the trajectory displacement of the proposed mechanism is larger in the condition of smaller link size,which indicates that the mechanism can effectively decrease the machine *** real-time controllable motor angular acceleration fluctuation is smaller and the commutation times are less,which has the advantage of reducing the difficulty of the mechanism control ***,the correctness of the design method is verified by kinematics ***,the synchronous linkage motion control methods of the two motors were designed,a transplanting experiment of the prototype was carried out,the picking success rate had reached 90%-93.4%and transplanting success rate was 80.5%-86.9%during experiment,which showed that the integrated operation of picking and planting flower seedlings can be realized by the proposed mechanism.

关键词： hybrid-driven mechanism mechanism optimization integrated operation of picking and planting synchronous linkage motion control