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临床医学工程 2011年第7期18卷 997-998页

作者：刘永青李杰峰苟中坤林序文余海滨何启新钟文辉赖西铭广东省东莞市太平人民医院骨外科广东东莞523900 广东省东莞市太平人民医院手足外科广东东莞523900

目的探讨踝关节镜下辅助治疗踝关节骨折并下胫腓分离的优点及体会。方法 2009年5月至2010年12月间,笔者收集了9例踝关节骨折并下胫腓分离病例,下胫腓分离按Lauge-Hansen分型：旋后-外旋型4例,旋前-外旋型4例,旋前-外展型1例;其中同时合... 详细信息

目的探讨踝关节镜下辅助治疗踝关节骨折并下胫腓分离的优点及体会。方法 2009年5月至2010年12月间,笔者收集了9例踝关节骨折并下胫腓分离病例,下胫腓分离按Lauge-Hansen分型：旋后-外旋型4例,旋前-外旋型4例,旋前-外展型1例;其中同时合并关节韧带损伤6例,距骨骨折4例,内踝、外踝或后踝骨折7例。分别作踝关节镜下关节内清理、骨折内固定术,其中6例行下胫腓联合固定。结果术后9例全部随访,时间为8~28个月,平均15.6个月,定期复查X线片均示骨折愈合良好,6例下胫腓联合固定良好,于术后8～12周取出下胫腓联合内固定螺钉;根据Baird-Jackson系统评分：优5例;良3例;可1例;优良率达88.9%;无一例感染、断钉、踝关节不稳定及创伤性关节炎等并发症发生。结论踝关节镜下辅助治疗踝关节骨折并下胫腓分离可直视下探查,明确诊断下胫腓联合固定与否;其手术损伤小,有利于踝关节的早期功能锻炼,减少并发症,使患者术后功能得到较好恢复。

关键词：踝关节镜踝关节骨折下胫腓分离

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踝关节镜辅助治疗距骨骨折的临床价值

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临床医学工程 2011年第6期18卷 840-841页

作者：刘永青李杰峰林序文余海滨苟中坤何启新钟文辉赖西铭广东省东莞市太平人民医院骨外科广东东莞523900 广东省东莞市太平人民医院手足外科广东东莞523900

目的探讨踝关节镜下辅助治疗距骨骨折的优点及体会。方法 2007年4月至2010年12月间,笔者收集了19例距骨骨折病例,按Hawkins分型,其中Ⅰ型骨折4例,Ⅱ型14例,Ⅲ型1例。经关节镜下探查分析:关节软骨损伤15例,韧带损伤8例,合并距骨脱位7例;... 详细信息

目的探讨踝关节镜下辅助治疗距骨骨折的优点及体会。方法 2007年4月至2010年12月间,笔者收集了19例距骨骨折病例,按Hawkins分型,其中Ⅰ型骨折4例,Ⅱ型14例,Ⅲ型1例。经关节镜下探查分析:关节软骨损伤15例,韧带损伤8例,合并距骨脱位7例;合并胫(或腓)骨远端骨折11例。分别作镜下关节内清理、关节软骨及韧带修复、骨折内固定等手术治疗,术后指导早期功能锻炼,定期复查X线片。结果术后19例全部随访,时间为6～24个月,平均约13.4个月,其中优12例,良6例,可1例,优良率达94.7%。无一例感染或距骨缺血性坏死等并发症发生。结论踝关节镜下辅助治疗距骨骨折可直视下探查,明确诊断;踝关节镜手术有创伤小、出血少、并发症少等优点,在辅助治疗距骨骨折方面具有较高临床实用价值。

关键词：踝关节镜距骨骨折临床价值

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Research of the assessable method of postpartum hemorrhage

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TECHNOLOGY AND HEALTH CARE 2016年第Suppl 2期24卷 S465-S469页

作者： Chi, Zhenyu Zhang, Song Wang, Yang Yang, lin Yang, Yimin Li, xuwen Beijing Univ Technol Coll Life Sci & Bioengn Beijing Peoples R China Shenzhen Huada Gene Res Inst Shenzhen Guangdong Peoples R China

BACKGROUND: Postpartum hemorrhage (PPH) is the most common cause of parturient death worldwide [1]. However, most cases of PPH can be avoided. OBJECTIVE: This paper employs statistical methods to screen risk factors of PPH and calculate relevant parameters. METHODS: Multivariable logistic regression analysis was applied to obtain the regression equation and odds ratio (OR) value. The determined risk factors were assigned comprehensive and reasonable scores according to scientific relevance and reasoning according to the OR value. P-PPH values were calculated in order to assess the morbidity of PPH. RESULTS: The scores of pregnant women could be intuitively used to show the risk of getting PPH. CONCLUSIONS: Through the above methods, a comprehensive risk evaluation method of detecting PPH was developed.

关键词： Postpartum hemorrhage high risk factors comprehensive scores

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The Pulse Waveform and Parameters Analysis of Various Athletes Based on Radial Pulse

The Pulse Waveform and Parameters Analysis of Various Athlet...

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IEEE Workshop on Electronics, Computer and Applications (IWECA)

作者： Wang, Anran Li, xuwen Yang, lin Yang, Xingxing Meng, Lanxi Su, Jun Zhang, Song Beijing Univ Technol Coll Life Sci & Bioengn Beijing 100124 Peoples R China Beijing Muxiyuan Sports Tech Sch Beijing 100075 Peoples R China

ISBN: (纸本)9781479945658

Classify the sports events by the maximal oxygen uptake (MaxO(2)) and the maximal muscular voluntary contraction (MVC). Collect the radial pulse wave of different sports events and discuss the pulse waveform and characteristic parameters. Radial pulse waveform on 304 subjects was collected, by using PowerLab and its bundled software LabChart 7, developed by ADInstrument. Normalize each radial pulse waveform and let the waveform cycle and amplitude distribute in the range of 0.100. Analyze the relative time of the maximum point Tm, the abscissa X and ordinate Y of dicrotic notch, the pulse waveform area K and the pulse wave age index SDPTG. The pulse waveform changing trend of MVC (<50%) group and MVC (>50%) group are different while the sports have the same MaxO(2). And the pulse waveform changing trend of MaxO(2) (<40%) group, MaxO(2) (40%-70%) group and MaxO(2) (>70%) group are as well as different while the sports have the same MVC.

关键词： Athlete Pulse wave Radial artery Waveform parameter

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A Three-Dimensional Cyclic Multiplication - Convolution Neural Network for Hyperspectral Image Classification 19

A Three-Dimensional Cyclic Multiplication - Convolution Neur...

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2022 IEEE SmartWorld, 19th IEEE International Conference on Ubiquitous Intelligence and Computing, 2022 IEEE International Conference on Autonomous and Trusted Vehicles Conference, 22nd IEEE International Conference on Scalable Computing and Communications, 2022 IEEE International Conference on Digital Twin, 8th IEEE International Conference on Privacy Computing and 2022 IEEE International Conference on Metaverse, SmartWorld/UIC/ATC/ScalCom/DigitalTwin/PriComp/Metaverse 2022

作者： Xiong, Xiaorui Huang, Zihan Sheng, Zhongyin Xu, Zihan He, xuwen lin, Qiaoling Wuhan Polytechnic University School of Mathematics and Computer Science Wuhan China

ISBN: (纸本)9798350346558

Hyperspectral images have a large amount of spectral and spatial information, and play a significant role in remote sensing. However, the traditional image classification techniques are no longer applicable to the developing hyperspectral remote sensing images, and how to reasonably utilize the rich feature information of hyperspectral images to obtain high-accuracy classification results has become one of the most important research topics at present. This paper proposes a new 3D convolutional neural network to solve the problem of feature wastage in hyperspectral images. The framework cycles the convolutional kernel size, and the number of convolutional kernels increases in a multiplicative relationship for hyperspectral image classification (CM-CNN). Compared with existing neural network frameworks on different datasets, CMCNN achieves the highest Kappa coefficient and confusion matrix accuracy, which are stable at above 95%. From the classification results, there are almost no obvious classification errors. © 2022 IEEE.

关键词： Image classification

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INDIVIDUALIZED SPORTS MANAGEMENT SCHEME FOR PREGNANT WOMEN IN CHINA

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JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY 2019年第8期19卷

作者： Yang, lin Luo, Qi Lu, Yang Zhang, Song Yang, Yimin Li, xuwen Hao, Dongmei Xu, Mingzhou Shao, Jing Beijing Univ Technol Coll Life Sci & Bioengn Beijing 100124 Peoples R China Beijing Elect Power Hosp Beijing 100073 Peoples R China Beijing Aerosp Chang Feng Co Ltd Beijing 100071 Peoples R China Beijing Yes Med Devices Co Ltd Beijing 100152 Peoples R China

In recent years, pregnant women in China generally face problems such as unbalanced and excessive nutrition, lack of proper exercise during pregnancy, which shows a significant increase in weight during pregnancy, leading to an increasing trend of perinatal complications. At present, there is less sports health management system for pregnant women throughout pregnancy. In view of this, based on the existing research in related fields, this study deeply explores the appropriate monitoring methods of pregnant women's sports in China. In this study, effective and convenient testing methods and evaluation criteria were proposed for pregnant women's sports and psychology. The research idea was a method based on the pulse wave to detect pregnant women's cardiac reserve capacity, and grading the Diastolic/Systolic value of pregnant women as a reference for grading individualized target heart rate range of moderate intensity exercise. The effective time and energy expenditure of pregnant women were assessed by monitoring the exercise process. The purpose is to help and guide pregnant women in the whole process of pregnancy self-movement management, and thus improve the quality of maternal health care services in China.

关键词： Pregnancy health sports management pulse wave, exercise assessment

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The catalytic thermal decomposition of ammonium perchlorate on CuMxOy (M = Fe, Ni, Co and Zn) catalysts and their applications in solid propellant

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JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 2023年第13期148卷 6013-6026页

作者： Hu, Yinghui Wang, xuwen Hao, Jingwei Jiang, Shouhang Zhang, Jian Yang, Yulin lin, Kaifeng Zheng, Jian Shuai, Yong Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers & Harbin 150001 Peoples R China Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China China Aerosp Sci & Technol Corp 16 Fucheng Rd Beijing 100048 Peoples R China

The excellent thermal decomposition efficiency of ammonium perchlorate (AP) is of great importance for obtaining propellant with fast specific impulse. In this study, four CuMxOy catalysts, including M = Fe, Ni, Co, and Zn, were synthesized and then used for catalyzing AP decomposition and hydroxyl-terminated polybutadiene (HTPB)-based solid propellant combustion. The existed synergistic effect in CuMxOy catalysts improved the catalytic activity and the most active CuZnO catalyst decreased the AP high-temperature decomposition temperature (HTD) from 412.5 to 289.4 ?. Kinetic studies indicated that CuMxOy catalysts inhibited the conversion of N2O to a fully oxidized product and decreased the activation energy (E-a) in HTD to concentrate AP decomposition to significantly decrease the heat loss, thereby increasing their decomposition efficiency. When applying the CuMxOy catalysts in the HTPB (hydroxyl-terminated polybutadiene)-based solid propellant, a faster burning rate and stronger optical emission spectrum were obtained. The CuMxOy catalyst is a potential additive for the preparation of outstanding combustion solid propellants.

关键词： Bimetal oxide catalyst Ammonium perchlorate Thermal decomposition Catalytic mechanism Burning rate

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On the Best Condition of Electrolysis Coking Wastewater by Orthogonal Method

On the Best Condition of Electrolysis Coking Wastewater by O...

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International Conference on Advances in Computer Science, Environment, Ecoinformatics, and Education

作者： He, xuwen Xin, Lu Zhang, Chunhui lin, Hui Liu, Liyuan Zhang, Jingjing He, Xiong China Univ Min & Technol Sch Chem & Environm Engn Beijing 100083 Peoples R China

ISBN: (纸本)9783642233234

Coking wastewater was advanced treated by electrolytic experiment. Through the orthogonal method, we found out the optimum experimental condition as current density 20 mA/cm2, electrode plate span 1cm, electrolytic time 60 min, PH 7 and electrical conductivity 8000 mu s/cm. The removal rates of COD, NH3-N and phenol were 58.62%, 89.9% and 96.8% respectively and the corresponding concentrations were 97.78mg/L, 14.3mg/L and 0.43mg/L respectively, which can meet first discharge standard of GB 13456-1992.

关键词： The orthogonal method electrolysis coking wastewater advanced treatment

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Adsorption of Orange G on Activated Porous Carbon Derived from Coal Tar Pitch: Experimental and DFT Study

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LANGMUIR 2024年第48期40卷 25471-25482页

作者： Huang, linlin Zhang, xuwen Liu, Tingting Wang, lin Li, Lixin Li, Da Sheng, Tao Dong, Zilong Zhao, Xinyue Heilongjiang Univ Sci & Technol Coll Environm & Chem Engn Harbin 150022 Peoples R China Harbin Inst Technol State Key Lab Urban Water Resource & Environm Harbin 150000 Peoples R China Northeast Agr Univ Sch Resources & Environm Harbin 150030 Peoples R China

A coal tar pitch-based porous carbon adsorbent (CPA) was synthesized through a straightforward method involving the heating of a mixture of KOH and coal tar pitch (CTP). This CPA exhibited a high surface area of 1811.2 m2 g-1 and a large pore volume of 0.94 cm3 g-1 when prepared with a CTP to KOH mass ratio of 1:4 at 800 degrees C. Parameters such as the heating temperature and activator dose were optimized to enhance the adsorption efficiency. The prepared CPA was extensively characterized by SEM, XRD, FTIR, and BET measurements. Notably, CPA presented a distinct adsorption performance for Orange G (OG), achieving a maximum adsorption capability of 449.7 mg g-1. Kinetic studies indicated that the adsorption process followed the pseudo-second-order model, while the adsorption isotherm data demonstrated that both chemical and physical interactions favored OG adsorption. Thermodynamic analysis revealed that the adsorption of OG on CPA was spontaneous and exothermic and increased the entropy. Density functional theory (DFT) calculations provided insights into the adsorption mechanism, highlighting electrostatic interactions, hydrogen bonds, and pi-pi interactions as the dominant processes governing OG adsorption onto the adsorbent.

关键词： Potassium hydroxide

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A study of a fetal heart rate calculation system based on R-R interval

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TECHNOLOGY AND HEALTH CARE 2020年第S1期28卷 S187-S195页

作者： Zhang, Yisong Zhang, Song Yang, lin Yang, Yimin Li, xuwen Hao, Dongmei Xu, Mingzhou Shao, Jing Beijing Univ Technol Coll Life Sci & Bioengn Intelligent Physiol Measurement & Clin Translat Beijing Int Base Sci & Technol Cooperat Beijing 100024 Peoples R China Beijing Aerosp ChangFeng Co Ltd Beijing 100071 Peoples R China Beijing Yes Med Devices Co Ltd Beijing 100152 Peoples R China

BACKGROUND: Fetal electrocardiogram (FECG) can be obtained in a non-invasive manner to monitor fetal growth status. OBJECTIVE: In this study, a fetal heart rate (FHR) calculation system was proposed, which consists of the FECG recorder (MF-HOLTER) and the FECG monitoring software (FECG-MS). The abdomen electrocardiogram (AECG) of pregnant woman is acquired through the MF-HOLTER. The FECG-MS packs the AECG data and calls the FECG separation algorithm to obtain the separated FECG and the fetal QRS (FQRS) position. The FHR is further obtained by calculating the R-R interval value. At the same time, this study proposed a FQRS position correction algorithm to calculate the correct FHR values. METHOD: In order to verify the accuracy of the FHR calculation, the ECG signal of FLUKE's PS320 FETAL SIMULATOR and clinical data were simultaneously tested. RESULTS: The accuracy rate is over 98% in processing the simulator's data. In processing clinical data, the FHR values obtained by both the system proposed in this study and Monica AN24 are very close, and the difference is less than 1 bpm. CONCLUSION: The results show that the FHR calculation system is accurate and stable, and has a positive application value and prospect.

关键词： Fetal ECG fetal heart rate R-R interval fetal QRS position correction

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