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可视化智能辅助髋臼镜像重建技术治疗CroweⅡ、Ⅲ型发育性髋关节发育不良

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中华骨科杂志 2024年第6期44卷 345-353页

作者：柴伟张博涵孔祥朋张洪周勇刚蒋青解放军总医院第四医学中心骨科医学部北京100048 国家骨科与运动康复临床医学研究中心北京100853 南京大学医学院附属鼓楼医院骨科、运动医学与成人重建外科南京210008

目的探讨镜像重建理念在可视化智能辅助系统(visual treatment solution,VTS)辅助全髋关节置换术(total hip arthroplasty,THA)治疗CroweⅡ、Ⅲ型发育性髋关节发育不良(developmental dysplasia of the hip,DDH)中应用的可行性和疗效。方法回顾性分析2.2.年6月至2.2.年8月于解放军总医院第四医学中心骨科医学部接受初次THA的单侧CroweⅡ、Ⅲ型DDH患者67例。按旋转中心重建位置不同进行术前规划及手术,依照对侧正常关节旋转中心重建(镜像组)37例,男8例、女2.例,年龄为(40.9±13.1)岁;选取骨量丰富区域直接高位重建(高位组)30例,男7例、女2.例,年龄为(38.3±11.1)岁。比较两组术后12.月时患侧与健侧髋关节旋转中心高度、大转子高度及股骨偏距,比较两组手术前后组间的Harris髋关节评分(Harris hip score,HHS)和西安大略和麦克马斯特大学(the Western Ontario and McMaster university,WOMAC)骨关节炎指数评分。结果所有患者均顺利完成手术,镜像组手术时间、术中出血量、随访时间分别为(113.9±2..9)min、(2.7.8±181.6)ml、(12.8±1.8)个月,高位组分别为(118.0±2..2.min、(2.3.3±12..8)ml、(13.7±2.3)个月,组间差异均无统计学意义(P>0.05)。镜像组术后12.月患侧旋转中心高度、大转子高度及股骨偏距分别为(16.1±3.8)、(17.7±5.2.、(34.4±5.1)mm,与健侧的差异均无统计学意义(P>0.05);HHS和WOMAC骨关节炎指数评分分别为(84.3±6.3)、(9.4±2.5)分,较术前的(32.3±5.3)、(76.9±5.4)分改善,差异有统计学意义(t=-34.2.2.P4.486,P2..9±3.7)、(2..4±7.9)、(35.4±6.2.mm,较健侧增加,差异有统计学意义(t=-15.706,P494,P2.555,P=0.016);HHS和WOMAC骨关节炎指数评分分别为(79.5±4.9)、(13.9±3.3)分,较术前的(30.9±4.8)、(78.7±5.3)分改善,差异有统计学意义(t=-37.339,P4.375,P2.月的差异有统计学意义(t=3.404,P=0.001;t=-6.315,P<0.001)。至末次随访所有假体与组件均稳定在位,无患者出现并发症或二次手术。结论与高位重建相比,VTS导航辅助THA的单侧CroweⅡ、Ⅲ型DDH患者镜像重建术后均取得了令人满意的短期临床与影像学结果,镜像重建技术有助于实现THA术后恢复原生关节解剖结构与功能状态的目标。

关键词：发育性髋关节发育不良关节成形术,置换,髋手术导航系统镜像重建

Rapid Fabrication of CdS Nanocrystals with Well Mesoporous Structure Under Ultrasound Irradiation at Room Temperature

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Chemical research in Chinese Universities 2012年第1期28卷 124-128页

作者： YU Chang-lin1, ZHOU Wan-qin2.3, YU Jim-my4, YANG Jian-gao5 and FAN Qi-zhe1 1. School of Metallurgy and Chemical Engineering, 2. School of Information Engineering, Jiangxi university of Science and Technology, Ganzhou 341000, P. R. China 3. Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, Fuzhou university, Fuzhou 350002. P. R. China 4. Department of Chemistry, {2. of Novel Functional Molecules, and Environmental Science Programme, Chinese university of hong kong, Shatin, New Territories, hong kong, P. R. China 5. Engineering research {2. of High-efficiency Development and Application Technology of Tungsten Resources, Ministry of Education, Jiangxi university of Science and Technology, Ganzhou 341000, P. R. China Jiangxi Univ Sci & Technol Sch Met & Chem Engn Ganzhou 341000 Peoples R China Jiangxi Univ Sci & Technol Sch Informat Engn Ganzhou 341000 Peoples R China Fuzhou Univ Fujian Prov Key Lab Photocatalysis State Key Lab Breeding Base Fuzhou 350002 Peoples R China Chinese Univ hong kong Dept Chem Ctr Novel Funct Mol Shatin Hong Kong Peoples R China Chinese Univ hong kong Environm Sci Programme Shatin Hong Kong Peoples R China Jiangxi Univ Sci & Technol Minist Educ Engn Res Ctr High Efficiency Dev & Applicat Techn Ganzhou 341000 Peoples R China

Sphere-like mesoporous CdS nanocrystals with high crystallinity and big surface area were successfully fabricated by ultrasound irradiation at room temperature. The as-synthesized CdS with and without ultrasound irra diation was investigated by the characterizations of X-ray diffraction（XRD）, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and Brunauer-Emmett-Teller（BET） surface areas. The photocatalytic acti vity of the CdS was evaluated by photocatalytic degradation of methyl orange under visible light（λ〉42. nm） irradia tion. A possible mechanism for the formation of the CdS nanocrystals with mesoporous structure under ultrasound irradiation was proposed. The results show that both the template role of the triblock copolymer of P12. and the effect of ultrasound-induced aggregation are mainly responsible for the formation of mesoporous structure. On the other hand, the energy generated from acoustic cavitation can effectively accelerate the crystallization process of the amorphous CdS.

关键词： CdS Crystallinity Mesoporous structure Ultrasound-induced aggregation

Fe-Mn-Al-C系奥氏体基低密度钢使役性能研究进展

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机械工程学报 2024年第8期60卷 34-47页

作者：孔玲王玉辉杨浩坤彭艳燕山大学国家冷轧板带装备及工艺工程技术研究中心秦皇岛066004 香港生产力促进局智能制造部中国香港999077

双碳战略催生轻量化材料和技术的蓬勃发展。作为最重要的结构材料之一,钢铁材料在国民经济发展中扮演重要角色。Fe-Mn-Al-C系钢具备优异的轻量化特征、耐腐蚀性、机械强度(抗拉强度600~2.00 MPa)和塑性(伸长率30%~100%)匹配,引起国内外... 详细信息

双碳战略催生轻量化材料和技术的蓬勃发展。作为最重要的结构材料之一,钢铁材料在国民经济发展中扮演重要角色。Fe-Mn-Al-C系钢具备优异的轻量化特征、耐腐蚀性、机械强度(抗拉强度600~2.00 MPa)和塑性(伸长率30%~100%)匹配,引起国内外极大关注。其中,奥氏体基低密度钢在综合性能和加工方面具有显著优势,是汽车、交通、军事等领域结构件极具潜力的轻量化先进钢铁材料。对近年来国内外发表的Fe-Mn-Al-C系低密度钢典型使役性能进行总结和分析,着重聚焦其作为结构件应用中的“基本力学性能、加工成形性能和重要服役性能”等方面,综述Fe-Mn-Al-C系奥氏体基低密度钢使役过程中的力学行为、变形特征以及冲击、疲劳和腐蚀等使役评价,归纳阻碍该类钢作为结构件工业应用仍需突破的科学与技术问题,提出未来提高奥氏体基Fe-Mn-Al-C系低密度钢使役性能的重点方向和研究路径,以期为奥氏体基低密度钢作为结构件应用研究提供参考。

关键词：奥氏体基低密度钢 Fe-Mn-Al-C 力学性能成形性能服役性能

Adiponectin as a negative regulator in obesity-related mammary carcinogenesis

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Cell research 2007年第4期17卷 280-282页

作者： Yu Wang~(1,2.4) Karen SL Lam~(3,4) Aimin Xu~(3,4) ~1Genome research center,~2.epartment of Biochemistry,~3Department of Medicine,and 4research center of Heart,Brain,Hormone and Healthy Aging,university of hong kong,hong kong SAR,China Genomeresearchcenter HormoneandHealthyAgingUniversityofHongKongHongKongSARChina DepartmentofBiochemistry HormoneandHealthyAgingUniversityofHongKongHongKongSARChina

The prevalence of obesity and its associated diseases hasposed a huge healthcare impact on our *** is amajor risk factor for many serious medical conditions,suchas metabolic syndrome,Type 2.Diabetes and cardiovasculardisorders *** addition,the close association of obesitywith cancers has attracted significant attentions[1].Severalobesity-related cancers,including breast,prostate,endo-metrium,colon and gallbladder cancer,have a hormonalbasis and are life *** cancer is the mostfrequent cancer and the second leading cause of cancerdeath among *** adiposity over the pre-andpost-menopausal years is an independent risk factor for thedevelopment of breast cancer,and is also associated withlate-stage disease and poor prognosis[2..Adipose tissue has been shown to be an important playerin obesity-related mammary carcinogenesis[2..Adipocyteis one of the predominant stromal cell types in the microen-vironment of mammary *** is also the major site forlocal estrogen production from androgens by aromatase,

关键词： Res

Numerical investigation on free air blast loads generated from center-initiated cylindrical charges with varied aspect ratio in arbitrary orientation

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Defence Technology（防务技术） 2022年第9期18卷 1662-1678页

作者： Chu Gao Xiang-zhen kong Qin Fang Jian hong Yin Wang State Key Laboratory of Disaster Prevention&Mitigation of Explosion&Impact Army Engineering University of PLAJiangsuNanjing210007China Inner Mongolia university of Finance and Economics Inner MongoliaHohhot010070China Engineering research center for Safety and Protection of Explosion&Impact of Ministry of Education Southeast UniversityJiangsuNanjing211189China

In current guidelines, the free air blast loads(overpressure and impulse) are determined by spherical charges, although most of ordnance devices are more nearly cylindrical than spherical in geometry. This may result in a great underestimation of blast loads in the near field and lead to an unsafe ***, there is still a lack of systematic quantitative analysis of the blast loads generated from cylindrical charges. In this study, a numerical model is developed by using the hydrocode AUTODYN to investigate the influences of aspect ratio and orientation on the free air blast loads generated from center-initiated cylindrical charges. This is done by examining the pressure contours, the peak overpressures and impulses for various aspect ratios ranged from 1 to 8 and arbitrary orientation monitored along every azimuth angle with an interval of 5°. To characterize the distribution patterns of blast loads,three regions, i.e., the axial region, the vertex region and the radial region are identified, and the propagation of blast waves in each region is analyzed in detail. The complexity of blast loads of cylindrical charges is found to result from the bridge wave and its interaction with primary waves. Several empirical formulas are presented based on curve-fitting the numerical data, including the orientation where the maximum peak overpressure emerges, the critical scaled distance beyond which the charge shape effect could be neglected and blast loads with varied aspect ratio in arbitrary orientation, all of which are useful for blast-resistant design.

关键词： Cylindrical charge Blast loads Aspect ratio Azimuth angle Bridge wave

Uptake,Depuration and Subcellular Distribution of Cadmium in Various Tissues of Perna viridis

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Biomedical and Environmental Sciences 1995年第2期8卷 176-185页

作者： M. S. YANG S. T. CHIU AND M. H. WONG(Department of Biology and center for Waste Recycling and Environmental Biotechnology, hong kong Baptist {2., Kowloon Tong, hong kong) Department of Biology Hong Kong Baptist University Kowloon Tong.

Green-lipped mussels (Perna viridis) were collected from a local mariculture site and placed in pre-cleaned sea water tanks containing 0, 0.2. 0.5 and 1.3 μg/ml CdCl2. The level of Cd in the gill, viscera and gonad was measured. The concentration of Cd in the 3 tissues increased linearly over 4 days' of exposure. The rate of uptake depends on the concentration of Cd in the water. In the 3 tissues studied, the maximum rate of uptake (Vmax) was highest in the gill (500μg/g dry weight/day), followed by viscera (100μg/g dry weight/day) and gonad (56.8 μg/g dry weight/day). The majority of the Cd taken up was bound to a fraction of the heat-stable proteins similar to metallothioneins. The rate of Cd depuration from the tissues was poor. There was no change in Cd concentration over 8 days' depuration in clean water

关键词： In Uptake,Depuration and Subcellular Distribution of Cadmium in Various Tissues of Perna viridis

ECONOMIC GLOBALIZATION AND ITS IMPACTS ON URBAN SYSTEM IN CHINA

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Journal of Geographical Sciences 1996年第1期6卷 1-17页

作者： Xu Xueqiang Zhang Rong(center for Urban and Rogional Studies, ZhongShan {2., Guangzhou 5102.5People’s Republic of China)Anthony Gar-on Yeh(Canter of Urban Planning and Environmental Management, {2. of hong kong, hong kong) Ctr for Urban + Regional Studies Zhongshan Univ Guangzhou 510275 China

With the implementation of economic reform and open policy, China has expanded her foreign trade, utilized a lot of foreign investment, and thethere its economy has been increasingly integrated into world economy. Because the coastal region is different in the level of socio-economic development, location and accessibility from inland region, the former has got more opporturuties of development. In the coastal region, the ekisting urban clusters are spreading and new ones are appearing. However, a large floating population, traffic jam, sprawl spread in urban land use and environmental pollution have become serious problems in coastal cities.

关键词： economic globalization urban system coastal region

Coexistence of Self-pumped Phase Conjugation and Mutual-pumped Phase Conjugation in Ce:BaTiO3

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Chinese Journal of Lasers 2000年第3期9卷 58-62页

作者： SHE Weilong (The State Key Laboratory of Ultrafast Laser Spectroscopy, Zhongshan university, Guangzhou 5102.5, China)Lee Wing-Kee (Department of Physics and Materials Technology {2. center, The Chinese university of hong kong, Shatin, N. T., Hon 中山大学超快速激光光谱学国家重点实验室广东广州香港大学香港

Self-pumped phase conjugation(SPPC) and mutual-pumped phas e conjugation (MPPC) have been found to coexist in Ce∶BaTiO 3 by using two coherent beams of 514.5nm wavelength from an argon ion laser. Both phase conjugations are of the stimulated backscattering and four-wave mixing type. For 7/6 incident power ratio and 2. mW total incident power,the shortest phase conjugate mirror formation time is 10s . Phase conjugate reflectivity of one the beams can reach 70%,which is ～2.% higher than the SPPC reflectivity using only one beam. When the total incident power is increased to 40 mW and the incident power ratio remains constant, a maximum phase conjugatate reflectivity of as much as 88% is obtained.

关键词： mutually pumped phase conjugation self-pumped phase conjugation stimulated backscattering four-wave mixing

Validation of Housekeeping Genes for Gene Expression Analysis in Iwagaki Oyster(Crassostrea nippona)Under Salinity Stress by Quantitative Real-Time PCR

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Journal of Ocean university of China 2020年第6期19卷 1441-1446页

作者： GONG Jianwen LI Qi YU hong LIU Shikai kong Lingfeng Key Laboratory of Mariculture Ministry of EducationOcean University of ChinaQingdao 266003China Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

Hypo-salinity can reduce the immunological reaction in Crassostrea nippona,even lead to massive *** is important to understand the molecular mechanism of oyster defense system,while quantitative real-time PCR can be employed in the ***,the accuracy of quantitative real-time PCR relies on the use of suitable reference *** this study,the expression stability of 14 candidate reference genes including traditional housekeeping genes EF1A,TUB,TUA,GAPDH,RO2.,as well as new candidate reference genes RPL5,RPL8,RPS2.,RPL14,RPL4,CO3,RPS8,RPS4,CYTB in different tissues of *** under salinity stress has been validated by quantitative real-time *** protein genes selected through expression analysis of transcriptome data from *** generally were more stable than traditional reference *** to the geNorm analysis,RPL4 and RPS4 could be used as internal controls for studying gene expression in *** with real-time PCR under salinity stress.

关键词： Crassostrea nippona reference gene hypo-salinity stress ribosomal protein genes