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Optical and Physical Analysis of Nd3. Doped Borosilicate Glasses

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材料科学与工程（中英文B版） 2015年第11期5卷 406-417页

作者： Yogesh Kumar Sharma Priyanka Goyal Sudha Pal Umesh Chandra Bind department of Physics S.B.S. Govt. P. G. College Rudrapur (Kumaun University Nainital)-263153 Uttarakhand India Centre of Nano Technology Indian Institute of Technology Roorkee India

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轴向间距对贯流式水轮机水力性能的影响

排灌机械工程学报 2023年第4期41卷 338-345页

作者：杨孙圣方恬 PUNIT Singh 周成赵尔策王桃江苏大学国家水泵及系统工程技术研究中心江苏镇江212013 印度科学院可持续技术中心卡纳塔克班加罗尔560012 西华大学流体及动力机械教育部重点实验室四川成都610039

为了寻找贯流式水轮机中导叶与转轮轴向间距的合理取值,在保证其结构紧凑性的同时,获得良好的水力性能,在其他主要参数不变的情况下,通过试验与数值计算相结合的方法,分别对导叶与转轮之间轴向间距s值为30,40,50,60和70 mm的微贯流式水... 详细信息

为了寻找贯流式水轮机中导叶与转轮轴向间距的合理取值,在保证其结构紧凑性的同时,获得良好的水力性能,在其他主要参数不变的情况下,通过试验与数值计算相结合的方法,分别对导叶与转轮之间轴向间距s值为30,40,50,60和70 mm的微贯流式水轮机模型进行全流场数值计算,研究轴向间距对贯流式水轮机水力性能的影响.结果表明:水轮机的水头随着轴向间距的增大而增加,水轮机的轴功率随着轴向间距的增大呈现先上升后稳定的趋势;综合各流量条件,水轮机通常在适中的轴向间距下取得较高的效率,该模型在s=40 mm时效率达到最高.选择适中的轴向间距可以改善转轮叶片表面压力分布和流态;过大的轴向间距会导致转轮进口发生负撞击,出现脱流现象;转轮出口的湍动能随着轴向间距的扩大而减小.在最优工况下,轴向间距从30 mm扩大至70 mm的过程中,转轮内部的水力损失逐渐增加,增加幅度达到15.6%,而出水管中的水力损失则减小了19.7%,总水力损失呈增加趋势.综合考虑,选用s=40 mm作为最终方案.

关键词：贯流水轮机轴向间距水力性能数值模拟试验研究

Is cellular therapy beneficial in management of rotator cuff tears?Meta-analysis of comparative clinical studies

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World Journal of Meta-Analysis 2022年第3期10卷 162-176页

作者： Sathish Muthu Cheruku Mogulesh Vibhu Krishnan Viswanathan Naveen Jeyaraman Satvik N Pai Madhan Jeyaraman Manish Khanna department of Orthopaedics Government Medical College and HospitalDindigul 624001Tamil NaduIndia department of Biotechnology School of Engineering and TechnologySharda UniversityGreater Noida 201306Uttar PradeshIndia indian Stem Cell Study Group Association Lucknow 226010Uttar PradeshIndia department of Orthopaedic Rheuamtology Dr Ram Manohar Lohiya National Law UniversityLucknow 226010Uttar PradeshIndia department of MSK Oncology University of CalgaryAlberta AB T2N 1N4AlbertaCanada department of Orthopaedics Atlas Hospitals(The Tamil Nadu Dr MGR Medical University)Tiruchirappalli 620002Tamil NaduIndia department of Orthopaedics Sri Ramachandra Medical College and Research InstituteChennai 600116Tamil NaduIndia department of Orthopaedics Faculty of MedicineSri Lalithambigai Medical College and HospitalDr MGR Educational and Research InstituteChennai 600095Tamil NaduIndia department of Orthopaedics South Texas Orthopaedic Research Institute(STORI Inc.)LaredoTX 78045United States department of Orthopaedics Autonomous State Medical CollegeAyodhya 224135Uttar PradeshIndia

BACKGROUND Mesenchymal stromal cell(MSC)-based cellular therapy promotes type I collagen production,enhance mechanical strength of tissues,and enhance biology at the bone-tendon interface,which primarily explains their potential clinical utility in rotator cuff(RC)*** To analyze the efficacy and safety of cellular therapy utilizing MSCs in the management of RC tears from clinical studies available in the *** We conducted independent and duplicate electronic database searches including PubMed,Embase,Reference Citation Anallysis,Web of science,and Cochrane Library in August 2021 for studies analyzing the efficacy and safety of cellular therapy(CT)utilizing MSCs in the management of RC *** Analog Score(VAS)score for pain,American Shoulder and Elbow Surgeons(ASES)score,Disability of the Arm,Shoulder,and Hand score,Constant score,radiological assessment of healing,and complications such as retear rate and adverse events were the outcomes *** was performed in R-platform using OpenMeta[Analyst]*** Six studies involving 238 patients were included for *** noted a significant reduction in VAS score for pain at 3 mo(weighed mean difference[WMD]=-2.234,P<0.001)and 6 mo(WMD=-3.078,P<0.001)with the use of CT,which was not maintained at long-term follow-up(WMD=-0.749,P=0.544).Concerning functional outcomes,utilization of CT produced a significant shortterm improvement in the ASES score(WMD=17.090,P<0.001)and significant benefit in functional scores such as Constant score(WMD=0.833,P=0.760)at long-term ***,we also observed significantly improved radiological tendon healing during the longterm follow-up(odds ratio[OR]=3.252,P=0.059).We also noted a significant reduction in the retear rate upon utilization of CT in RC tears both at short-(OR=0.079,P=0.032)and long-term(OR=0.434,P=0.027)*** did not observe any significant increase in the adverse events directly related to cellular therapy,as comp

关键词： Mesenchymal stromal cell Bone-marrow derived mesenchymal stromal cell Adipose-derived mesenchymal stromal cell Rotator cuff tear Cellular therapy Meta-analysis

Evidence analysis on the utilization of platelet-rich plasma as an adjuvant in the repair of rotator cuff tears

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World Journal of Meta-Analysis 2022年第3期10卷 143-161页

作者： Sathish Muthu Naveen Jeyaraman Keval Patel Girinivasan Chellamuthu Vibhu Krishnan Viswanathan Madhan Jeyaraman Manish Khanna department of Orthopaedics Government Medical College and HospitalDindigul 624001Tamil NaduIndia department of Biotechnology School of Engineering and TechnologySharda UniversityGreater Noida 201306Uttar PradeshIndia Research Associate Indian Stem Cell Study GroupAssociationLucknow 226010Uttar PradeshIndia Research Associate Orthopaedic Research GroupCoimbatore 641001Tamil NaduIndia Fellow in Orthopaedic Rheumatology Dr Ram Manohar Lohiya National Law UniversityLucknow 226010Uttar PradeshIndia Fellow in Joint Replacement Atlas Hospitals(The Tamil Nadu Dr MGR Medical University)Tiruchirappalli 620002Tamil NaduIndia Fellow in Arthroscopy Ortho-One Orthopaedic Speciality Centre(The Tamil Nadu Dr MGR Medical University)Coimbatore 641005Tamil NaduIndia department of Orthopaedics and Spine Surgery Ganga Medical Centre and HospitalsCoimbatore 641043Tamil NaduIndia department of Orthopaedics Faculty of MedicineSri Lalithambigai Medical College and HospitalDr MGR Educational and Research InstituteChennai 600095Tamil NaduIndia South Texas Orthopaedic Research institute LaredoTX 78045United States department of Orthopaedics Autonomous State Medical CollegeAyodhya 224135Uttar PradeshIndia

BACKGROUND Platelet-rich plasma has been gaining popularity as an agent for biological augmentation either as the sole treatment modality or as an adjunct to surgical *** is substantial discrepancy in the results of the published meta-analyses;and the true efficacy and role of using autologous platelet-rich plasma(PRP)at the time of rotator cuff repair is still *** To performed this systematic overview on the overlapping meta-analyses that analyzed autologous PRP as an adjuvant in the repair of rotator cuff tears and identify the studies which provide the current best evidence on this subject and generate recommendations for the *** We conducted independent and duplicate electronic database searches in PubMed,Web of science,Scopus,Embase,Cochrane Database of Systematic Reviews,Reference Citation Analysis and the Database of Abstracts of Reviews of Effects on September 8,2021 to identify meta-analyses that analyzed the efficacy of PRP as an adjuvant in the repair of rotator cuff *** quality assessment was made using Oxford Levels of Evidence,AMSTAR scoring and AMSTAR 2 *** then utilized the Jadad decision algorithm to identify the study with the highest quality to represent the current best evidence to generate the *** Twenty meta-analyses fulfilling the eligibility criteria were *** AMSTAR scores of the included studies varied from 6-10(mean:7.9).All the included studies had critically low reliability in their summary of results due to their methodological flaws according to AMSTAR 2 *** heterogeneity was observed in the reporting of VAS,function outcome scores(longterm UCLA score,ASES score,SST score),operative time and long-term re-tear *** metaanalyses are more supportive of the role of intra-operative administration of PRPs at the bonetendon interface in improving the overall healing and re-tear rates,functional outcome and *** initial size of the tear and

关键词： Platelet-rich plasma Rotator cuff tears Meta-analyses Functional outcome Re-tear Recommendation