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关节镜下双排缝合桥有结与无结修复治疗老年肩袖损伤的效果比较

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临床医学 2024年第8期44卷 6-9页

作者：黄永青平煤神马医疗集团总医院四肢骨科河南平顶山467000

目的比较关节镜下双排缝合桥有结与无结修复治疗老年肩袖损伤的效果。方法选择2019年10月至2022年10月就诊于平煤神马医疗集团总医院的100例老年肩袖损伤患者为研究对象,按照随机数字表法分为对照组与研究组,每组50例。所有患者均采用... 详细信息

目的比较关节镜下双排缝合桥有结与无结修复治疗老年肩袖损伤的效果。方法选择2019年10月至2022年10月就诊于平煤神马医疗集团总医院的100例老年肩袖损伤患者为研究对象,按照随机数字表法分为对照组与研究组,每组50例。所有患者均采用关节镜下双排缝合桥技术,对照组予以有结修复,研究组予以无结修复。比较两组手术时间、视觉模拟评分法(VAS)评分、UCLA评分、Constant-Murley评分及AESE评分、术后关节僵硬和肩袖再撕裂发生率。结果研究组手术时间短于对照组,差异有统计学意义(P<0.05)。两组术后1周及术后3个月VAS评分均明显低于术前,且研究组低于对照组,术后两组UCLA评分、Constant-Murley评分及AESE评分均明显高于术前,且研究组重-巨大撕裂患者UCLA评分、Constant-Murley评分及AESE评分均高于对照组重-巨大撕裂患者,差异有统计学意义(P<0.05)。研究组术后肩袖再撕裂发生率低于对照组,差异有统计学意义(P<0.05)。结论关节镜下双排缝合桥无结修复在老年肩袖损伤治疗中疗效显著,有助于缩短手术时间,减轻术后疼痛,提高关节功能,减少肩袖再撕裂的风险。

关键词：肩袖损伤双排缝合桥有结无结关节镜

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POE策略在有机化学教学中的应用

科教导刊 2024年第1期 64-66页

作者：王国富付强黄永清江西中医药高等专科学校江西抚州344000

“有机化学”是药学类相关专业的专业基础课,教学中多数学生存在对相关概念理解困难、兴趣不足的问题。文章将POE教学策略应用于“有机化学”教学。课前,教师利用该策略收集学生对一些相关概念的理解、判断能力;课中,教师将有机化学与... 详细信息

“有机化学”是药学类相关专业的专业基础课,教学中多数学生存在对相关概念理解困难、兴趣不足的问题。文章将POE教学策略应用于“有机化学”教学。课前,教师利用该策略收集学生对一些相关概念的理解、判断能力;课中,教师将有机化学与生活、专业相结合,制作成适合POE策略的相应的视频演示用于课堂教学。实践证明,该策略对于提高学生的专注度、学习兴趣、理解能力有一定的帮助。

关键词： POE教学策略视频演示专业基础课分子模型

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全反式维甲酸诱导综合征型唇腭裂小鼠模型的建立和分析

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口腔医学研究 2024年第8期40卷 710-714页

作者：王宇萌迟丹丹张贝贝段小红黄永清宁夏医科大学口腔医学院宁夏银川750004 口颌系统重建与再生全国重点实验室国家口腔疾病临床医学研究中心陕西省口腔医学重点实验室空军军医大学第三附属医院口腔生物学教研室陕西西安710032 宁夏医科大学总医院口腔医院口腔颌面外科宁夏口腔疾病研究重点实验室宁夏银川750004

目的:建立综合征型唇腭裂小鼠模型并分析其表型特征。方法:采用灌胃法于孕鼠妊娠10.5 d(gestational days 10.5,GD10.5),以90 mg/kg的全反式维甲酸(all-trans retinoic acid,atRA)或等量玉米油+二甲基亚砜(dimethyl sulfoxide,DMSO)溶剂处理,GD14.5/GD17.5取胎鼠,行体视显微镜、石蜡包埋、切片、苏木精-伊红(hematoxylin-eosin,HE)染色观察胎鼠的全身及腭组织结构和发育情况;免疫荧光染色验证维甲酸受体(retinoic acid receptor alpha,RARα)在小鼠腭部及牙的表达情况。结果:实验组胎鼠出现腭裂、磨牙发育异常、肢体畸形、心肌致密化不全等表型。实验组RARα表达升高。结论:atRA诱导建立的小鼠腭裂模型具有综合征型唇腭裂的特征,可通过激活RARα受体影响小鼠发育。

关键词：全反式维甲酸综合征型唇腭裂先天性心脏病磨牙成釉细胞

Realizing Zinc Blende GaAs/AlGaAs Axial and Radial Heterostructure Nanowires by Tuning the Growth Temperature

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Journal of Materials Science & Technology 2011年第6期27卷 507-512页

作者： Jingwei Cuo Hui huang Xiaomin Ren Xin Yan Shiwei Cai Wei Wang yongqing huang Qi Wang and Xi Zhang Key Laboratory of Information Photonics & Optical Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

Vertical zinc blende GaAs/AlGaAs heterostructure nanowires were grown at different temperatures by metalorganic chemical vapor deposition via Au-assisted vapor-liquid-solid *** was found that radial growth can be enhanced by increasing the growth *** growth of radial heterostructure can be realized at temperature higher than 500℃,while the growth temperature of axial heterostructure is lower than 440℃.The room temperature photoluminescence properties of the nanowires were investigated and the relevant growth mechanism was discussed.

关键词： Nanowire GaAs AlGaAs Heterostructure Zinc blende

All-optical regeneration based on highly nonlinear photonic crystal fiber

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Frontiers of Optoelectronics 2008年第Z1期1卷 79-84页

作者： Yongzhao XU Yanfen WEI Xiaomin REN Xia ZHANG yongqing huang Department of Electronic Engineering Dongguan University of Technology Tianjin Mobile Corporation Company Key Laboratory of Optical Communication and Lightwave Technologies Ministry of Education Beijing University of Posts and Telecommunications

An all-optical regeneration based on selfphase modulation in a highly nonlinear photonic crystal fiber is proposed. The dispersion and nonlinearity properties of a series of photonic crystal fibers are analyzed, and the results show that the nonlinearity coefficient is closely related to the structure of the *** this paper, the nonlinearity coefficient is increased by reducing the effective mode area, and a highly nonlinear photonic crystal fiber with a large air-filling fraction is used as nonlinearity medium in optical regeneration. The numerical results show that good optical regeneration results can be obtained by using a relatively short fiber length due to the high nonlinearity of the fiber. The input peak power launched into the photonic crystal fiber and the parameters of the filter have much influence on optical regeneration. To achieve good optical regeneration, those parameters need to meet certain ***, the transfer characteristic of the regenerator is also discussed. By adjusting the input peak power and filter parameters, the regenerator can deal with input pulses of different pulse widths.

关键词： fiber optics and optical communications photonic crystal fiber optical regeneration self-phase modulation

Sequence [2,3]-Sigmatropic Rearrangement: One-Pot Synthesis of Proparggyl Allenylamines

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Chinese Journal of Chemistry 2024年第18期42卷 2223-2227页

作者： Huihui Feng Yujuan Xie Lliang huang yongqing Xu Junhai huang huangdi Feng College of Chemistry and Chemical Engineering Shanghai University of Engineering ScienceShanghai 201620China Shanghai Frontiers Science Research Centerfor Druggability of Cardiovascular noncoding RNA Institute for Frontier Medical Technology Shanghai Universityof Engineering ScienceShanghai 201620China

Allenes,served as highly sought-after building blocks,are an indispensable component of synthetic *** utility in modulating the chemical,physical,and pharmaceutical properties of organic compounds make allenes a desirable choice in various ***,we report a facile method for the atom-economical synthesis of propargyl allenylamines via an underdeveloped[2,3]-sigmatropic *** strategy employs easily accessible propargylamines as starting materials,which are first converted into propargyl ammonium salts,followed by a base-promoted[2,3]-sigmatropic *** one-pot,two-step reaction proceeds in the absence of transition metals,displays a very broad scope,and does not require the introduction of the electron-withdrawing group into the starting materials.

关键词： Allene Propargylamine C-N activation Sigmatropic rearrangement Metal-free Synthetic methods Domino reactions

Effects of Solution Chemistry Conditions and Adsorbent Surface Properties on Adsorption of Ni(Ⅱ) on Laiyang Bentonite

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China Petroleum Processing & Petrochemical Technology 2016年第3期18卷 66-75页

作者： Cao Xiaoqiang Yan Bingqi Xue Jianliang Wang Qian Wang Yaping huang yongqing Zhang Yan Lyu Xianjun College of Chemical and Environmental Engineering Shandong University of Science and Technology Qingdao 266590

The effects of solution chemistry conditions and adsorbent surface properties on the adsorption of Ni(II) on Laiyang bentonite were investigated via the batch technique. Potentiometric and mass titration techniques were employed in the batch experimental methods, and the results showed that the point of zero net proton charge(PZNPC) of bentonite at different ionic strength denoted p HPZNPC to be 8.2±0.1. The removal of Ni(II) from the solution increased with an increasing bentonite dosage, with the maximum removal efficiency equating up to 99%. The adsorption of Ni(II) on bentonite increased with an increasing p H value at a p H value of 99% at a p H value of >10.2. The Ni(II) adsorption performance exhibited different responses to cations(K+, Na+) but was not influenced by the background anions(NO3-, Cl-, and Cl O4-). The adsorption of Ni(II) was dominated by the outer-sphere surface complexation and ion exchange with Na+/H+ on bentonite surface at low p H value, whereas the inner-sphere surface complexation and surface precipitation were the main adsorption mechanisms at high p H value. The adsorption isotherms of Ni(II) on bentonite can be described well by the Langmuir model. The thermodynamic parameters of adsorption, including the Gibbs free energy, the enthalpy change, and the entropy change, at different temperatures indicated that the adsorption of Ni(II) on bentonite was endothermic and spontaneous.

关键词： nickel surface properties adsorption waste catalyst bentonite

基于TiO_(2)的近红外大数值孔径、高聚焦效率、高透射率会聚透镜

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聊城大学学报（自然科学版） 2024年第1期37卷 16-22页

作者：李真牛慧娟高松范鑫烨段晓峰黄永清聊城大学物理科学与信息工程学院山东聊城252059 聊城大学山东省光通信科学与技术重点实验室山东聊城252059 北京邮电大学信息光子学与光通信重点实验室北京100876

利用相位调控原理设计了一种基于TiO_(2)材料的具有非周期同心圆环形高折射率差亚波长光栅结构的会聚透镜,可实现大数值孔径、高聚焦效率、高透射率、低损耗特性,同时具有体积小、易集成的优点。采用时域有限差分法对提出的透镜结构进... 详细信息

利用相位调控原理设计了一种基于TiO_(2)材料的具有非周期同心圆环形高折射率差亚波长光栅结构的会聚透镜,可实现大数值孔径、高聚焦效率、高透射率、低损耗特性,同时具有体积小、易集成的优点。采用时域有限差分法对提出的透镜结构进行仿真和分析,工作波长为850 nm时,该透镜透射率为90.5%,焦距约为10.4μm,焦斑的半高全宽为0.61μm。通过对仿真得到的数据进行分析,可得数值孔径为0.92,聚焦效率高达91.07%,损耗为0.41 dB,平衡了高数值孔径与高聚焦效率之间的矛盾,可在小器件直径下接近衍射极限实现点会聚效果。

关键词：高折射率差亚波长光栅非周期同心圆环形结构会聚透镜高聚焦效率

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平陆运河工程施工控制网的建立

水运工程 2024年第4期 196-201页

作者：王萧寒花斌黄勇清卢军民王家文李建委王俊刚中交水运规划设计院有限公司北京100007

航道工程施工控制网是运河建设的重要课题。以平陆运河工程施工控制网的建立为例,根据枢纽建筑物施工放样的精度要求,确定平面控制网和高程控制网的等级。采用先进的测量仪器,快速完成控制网的外业数据采集,利用广西连续运行参考站(GXCO... 详细信息

航道工程施工控制网是运河建设的重要课题。以平陆运河工程施工控制网的建立为例,根据枢纽建筑物施工放样的精度要求,确定平面控制网和高程控制网的等级。采用先进的测量仪器,快速完成控制网的外业数据采集,利用广西连续运行参考站(GXCORS)测量数据,集中统一处理全球导航卫星系统(GNSS)数据。高效率完成了施工控制网技术设计、外业数据采集、内业数据处理、精度分析、成果提供等全部生产过程。

关键词：平陆运河工程施工控制网 GXCORS 精度