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Arthroscopic debridement of osteoarthritic elbow in professional athletes

Chinese Medical Journal 2011年第24期124卷 4223-4228页

作者： YAN Hui cui Guo-qing WANG Jian-quan YIN Yu AO Ying-fang Department of Sports Medicine Peking University Third HospitalBeijing 100191 China

Background Arthroscopic debridement is an appropriate procedure for osteoarthritic elbow in general populations. However, the results of arthroscopic debridement in the professional athletes, a younger and highly active patient cohort is unclear. The purposes of this study were to assess the clinical outcomes of arthroscopic debridement of osteoarthritic elbow in professional athletes and to evaluate the effect of prognostic factors on the clinical outcomes. Methods From January 1999 to January 2006, 35 professional athletes with osteoarthritc elbow （36 elbows） were treated with arthroscopic debridement, consisted of osteophytes removal, loose bodies removal and fenestration of the olecranon fossa as necessary. Average patient age was （23＋5） years （range 7-34 years）. Average follow-up was （43＋23） months （range 16-98 months）. Athletic activities consisted mainly of wrestling, judo and weightlifting. Patients were evaluated preoperatively and postoperatively with the modified Hospital for Special Surgery （HSS） elbow scoring system. Results According to the modified HSS elbow scoring system, the result was excellent for 16 elbows, good for 14 and poor for 6. No case had got worse after surgery. All athletes reported an improvement in pain. After athletic training, 15 elbows were not painful, 16 mildly painful, 3 moderately painful and 2 severely painful. The arc of flexion-extension improved from 111° preoperatively to 127° postoperatively. All of the athletes were able to return to their previous level of training. Five athletes won national-level championships. At follow-up, 17 athletes （18 elbows） were greatly satisfied with the results, 12 satisfied and 6 unsatisfied. Postoperatively, one athlete reported ulnar nerve symptoms and two others had residual loose bodies. The fenestration of the olecranon fossa was associated with a significantly increased chance of a poor outcome. The nature of the osteoarthdtis, duration of symptoms, osteophytes removal and loose

关键词： professional athletes osteoarthritic elbow arthroscopic debridement

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Dynamic Sulfur-Rich Polymers from Elemental Sulfur and Epoxides

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Chinese Journal of Polymer Science 2024年第10期42卷 1479-1487,I0010页

作者： Ke-Xiang Chen Chen-Hui cui Zhen Li Ting Xu Hao-qing Teng Zhi-Yuan He Yin-Zhou Guo Xiao-qing Ming Zhi-Shen Ge Yan-Feng Zhang Tie-Jun Wang School of Chemistry Engineering Research Center of Energy Storage Materials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an710049China State Key Lab for Strength and Vibration of Mechanical Structures Department of Engineering MechanicsXi’an Jiaotong UniversityXi’an710049China

Sulfur-containing dynamic polymers had attracted significant attention due to their unique chemical structures with high *** sulfur, an inexpensive industrial waste product, to synthesize dynamic polysulfide polymers through reverse vulcanization has been a notable approach. However, this method required high temperatures and resulted in the release of unpleasant oders. In this study, we presented a robust method for the preparation of sulfur-rich polymers with dynamic polysulfide bonds from elemental sulfur and inexpensive epoxide monomers via a one-pot strategy at the mild room temperature. Different types of polysulfide molecules and polymers were synthesized by reacting various epoxide compounds with sulfur, along with the investigation of their structures and dynamic behaviors. It was noteworthy that the obatined polymers prepared from m-(2,3-epoxypropoxy)-N,N-bis(2,3-epoxypropyl)aniline and elemental sulfur exhibit multiple dynamic behaviors, including polysulfide metathesis and polysulfide-thiol exchange, enabling their rapid stress relaxation, self-healing, reprocessing and degradable properties of the cross-linked polymer. More importantly, the hydroxyl groups at the side chains from epoxide ring opening exhibited potential transesterification. This work provided a facile strategy for designing dynamic sulfur-rich polymers via a mild synthesis route.

关键词： Elemental sulfur Sulfur-containing polymer Dynamic covalent bond Dynamic polymer

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基于粗糙集的焦炉加热工序控制规则提取

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化工自动化及仪表 2005年第6期32卷 20-23页

作者：崔庆安天津大学管理学院天津300072

应用粗糙集(RS)理论对焦炉直行温度的控制规则进行了提取。首先收集人工成功控制直行温度的原始样本,添加可控与不可控参数,得到初始决策表;指出模糊控制方法因输入参数过少,从而会导致不确定性决策;然后利用RS理论对初始决策表进行约简... 详细信息

应用粗糙集(RS)理论对焦炉直行温度的控制规则进行了提取。首先收集人工成功控制直行温度的原始样本,添加可控与不可控参数,得到初始决策表;指出模糊控制方法因输入参数过少,从而会导致不确定性决策;然后利用RS理论对初始决策表进行约简,发现了关键影响因素及潜在规律,最终得到两组仅含有三个参数,简洁、一致、完备的控制规则,并经实际运行检验了规则的适用性。

关键词：粗糙集知识发现焦炉直行温度控制规则提取

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课程思政建设在《复合材料学》中的教学实践与探索

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高分子通报 2020年第2期 65-68页

作者：滕翠青东华大学材料科学与工程学院上海201620

在高校专业课中实施课程思政建设,是高等教育实现全员全程全方位育人的重要组成部分。本文总结了在将思政建设引入到我校专业课《复合材料学》中的教学实践中的具体实施方法与教学体会。思政教育效果证明,充分发挥教师的主体作用,采用... 详细信息

在高校专业课中实施课程思政建设,是高等教育实现全员全程全方位育人的重要组成部分。本文总结了在将思政建设引入到我校专业课《复合材料学》中的教学实践中的具体实施方法与教学体会。思政教育效果证明,充分发挥教师的主体作用,采用多种教学方法,并把课程思政建设与复合材料专业学科知识及学校学科专长紧密结合,使专业教育与思政教育同向同行,可以充分激发学生的学习热情,树立正确的世界观、人生观和价值观,增加学生的民族自豪感和爱国精神,有利于激励学生树立"强国志、报国行"的远大志向。

关键词：课程思政建设复合材料课程设计教学方法

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Evolution of Mobility Function in Chinese Elders during the 6 Months of Nutritional Supplementation and Age-adapted Physical Activities: A Feasibility Study

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Biomedical and Environmental Sciences 2021年第11期34卷 900-904页

作者： CHANG cui qing KARAGOUNIS Leonidas G YU Ying Xiang YIN Jing DONATO-CAPEL Laurencel SHEVLYAKOVA Maya BEAUMONT Maurice HUANG Hong Shi OFFORD Elizabeth A HORCAJADA MarieNoelle Institute of Sports Medicine Peking University Third HospitalBeijing 100191China Nestle Health Science Translation ResearchEpalingesSwitzerland University of Bern Institute of Social and Preventive Medicine(ISPM)BernCH Nestle Research Center Beijing 100095China Nestle Research LausanneSwitzerland

Knee pain and discomfort appear at the early stages of normal aging,which lead to impaired mobility and reduced quality of life(QOL).Among age-related conditions,osteoarthritis(OA)is considered the most significant cause of disability The acceleration of the aging process in China has troubled the middle-aged and elderly with a relatively high prevalence of OA,as recently reported in a meta-analysis pooling and analyzing epidemiological publications on OA in the middleaged and elderly Chinese published from 2000 to2018[1].

关键词： aging impaired acceleration

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Nonlinear Variability Observed with Insight-HXMT in MAXI J1820+070 and MAXI J1535-571

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Research in Astronomy and Astrophysics 2023年第8期23卷 346-354页

作者： Qi Ding Long Ji qing-cui Bu Tiekuang Dong Jin Chang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210033China School of Astronomy and Space Sciences University of Science and Technology of ChinaHefei 230026China School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519000China Institut für Astronomie und Astrophysik Kepler Center for Astro and Particle PhysicsEberhard KarlsUniversitätSand 1D-72076 TübingenGermany National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China

We present the timing analysis of the nonlinear variability in two black hole low mass X-ray binaries MAXI J1820+070 and MAXI J1535-571 by using the bicoherence,a measure of phase coupling at different Fourier *** found different patterns,e.g.,“cross”and“hypotenuse,”for LFQPOs in different outburst *** they can be clearly distinguished,bicoherence patterns are similar over a wide energy range of 1–100 *** is intriguing that in some type-C QPOs we found the patterns that are normally observed in type-B *** the contrary,the“hypotenuse”pattern,a characteristic of type-C QPOs,was detected in a type-B *** suggests that different types of QPOs may originate from similar underlying *** addition,we speculate that the nonlinear variability may be a promising approach to disentangle distinct QPO models which assume different interactions between the broadband noise and QPO components.

关键词： black hole physics-instrumentation detectors-methods data analysis-X-rays binaries

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基于B-样条曲线与嵌套LS-SVR的函数型参数优化

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系统工程理论与实践 2021年第12期41卷 3378-3392页

作者：崔庆安张亦驰上海海事大学经济管理学院上海201306 郑州大学管理工程学院郑州450001

函数型参数在制造过程中以"曲线"形式变化,其对质量特性的影响与传统的标量型参数显著不同.提出一种适用于函数型参数的实验设计建模及优化方法.首先分析函数型参数的定义域表现形式,通过基函数展开对其进行自身建模;其次,以最小二乘支... 详细信息

函数型参数在制造过程中以"曲线"形式变化,其对质量特性的影响与传统的标量型参数显著不同.提出一种适用于函数型参数的实验设计建模及优化方法.首先分析函数型参数的定义域表现形式,通过基函数展开对其进行自身建模;其次,以最小二乘支持向量回归机(LS-SVR)为基本拟合模型,构造"内-外"双层嵌套结构:内层是函数型参数的B-样条曲线基函数展开模型,外层则是函数型参数,标量型参数与质量特性之间的全局性作用关系模型.通过对LS-SVR的Gaussian核函数的距离度量改进,将内层模型嵌套入外层模型;第三,利用超拉丁方设计获取样本集,建立具体的双层嵌套LS-SVR拟合模型,而后采用遗传算法寻优,再利用基函数模型得到函数型参数的优化曲线.对注塑加工以及3D打印制成品翘曲量优化的仿真与实证研究表明,与现有将函数型参数简化为标量型参数的响应曲面优化方法相比,样本量较小时,双层嵌套模型的预测精度更高,可以得到更优的质量特性值;所给出函数型参数优化曲线也较为平滑,有利于实际制造过程的参数优化值的稳定控制.

关键词：函数型参数优化双层嵌套模型实验设计最小二乘支持向量回归

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STUDY OF TWIN-CHANNEL BRANCH JUNCTION OF 8MM ＆ 4MM WAVE

STUDY OF TWIN-CHANNEL BRANCH JUNCTION OF 8MM ＆ 4MM WAVE

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International Conference on Millimeter Wave and Far-Infrared Technology

作者： Deng,Ci-Ping Lu,Xin cui,Yong-qing Beijing Institute of Technology

＜正＞In this paper,on the basis of theoretical analysis and of experimental adjusting,a new twin-channel branch junction of millimeter wave is found *** result shows that,in 8mm ＆ 4mm wave,the device works well,and has some specific properties such as,simplicity of structure,low losses,convenience for matching and for linking to external circuits.

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Current status of Mycoplasma pneumoniae infection in China

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World Journal of Pediatrics 2024年第1期20卷 1-4页

作者： Chao Yan Guan-Hua Xue Han-qing Zhao Yan-Ling Feng Jing-Hua cui Jing Yuan Department of Bacteriology Capital Institute of PediatricsNo.2Yabao RoadBeijing 100020People's Republicof China

Mycoplasma pneumoniae(***)is one of the most important pathogens for community-acquired pneumonia worldwide,especially in children and adolescents[1,2].*** is easily transmitted through droplets or direct contact in densely populated,enclosed,or poorly ventilated *** incubation period is 1-3 weeks,and it is contagious from the incubation period to a few weeks after clinical symptom *** infection can occur in any season,and there are differences in the epidemic seasons among regions in China[3].The most suitable culture temperature for *** is between 35℃C and 37 C,and therefore,hot weather may make it survive longer in the environment and spread *** is more common in autumn and winter in northern China,while it is more prevalent in summer and autumn in southern China.

关键词： winter weather autumn

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MPI程序的Petri网模型及其动态性质(英文)

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系统仿真学报 2006年第9期18卷 2455-2460页

作者：崔焕庆吴哲辉山东科技大学信息科学与工程学院山东青岛266510

对并行程序进行验证以保证正确性是很重要的,但是由于并行程序比串行程序要复杂得多,因此有必要建立它们的模型。MPI是目前应用最广泛的基于消息传递的并行程序编程标准之一。基于MPI程序的特点,提出了MPI并行程序的Petri网模型——MPIN... 详细信息

对并行程序进行验证以保证正确性是很重要的,但是由于并行程序比串行程序要复杂得多,因此有必要建立它们的模型。MPI是目前应用最广泛的基于消息传递的并行程序编程标准之一。基于MPI程序的特点,提出了MPI并行程序的Petri网模型——MPINet,给出了MPI函数的基本Petri网模型及对程序建模的基本步骤。定义了静态可执行的和并行正确的并行程序,并研究了MPINet的动态性质,包括安全性、可达性、可逆性以及活性。这些方法可以用于其他并行编程标准的分析。

关键词： MPI Petri网 MPINet 动态性质

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