The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Kelly A Lefaivre - One of the best experts on this subject based on the ideXlab platform.
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simple decompression versus anterior subcutaneous and submuscular Transposition of the ulnar nerve for cubital tunnel syndrome a meta analysis
Journal of Hand Surgery (European Volume), 2008Co-Authors: Sheina A Macadam, Rajiv Gandhi, Michael Bezuhly, Kelly A LefaivreAbstract:Purpose Optimal surgical management of cubital tunnel syndrome remains uncertain despite the publication of numerous case series, observational studies, systematic reviews, and, in recent years, randomized controlled studies. The purpose of this meta-analysis was to compare simple decompression to anterior Transposition of the ulnar nerve for the treatment of this condition, using comparative trials and randomized controlled trials. Methods Computerized database searches of MEDLINE, EMBASE, Cochrane Central, and all relevant surgical archives were performed. Studies involving adults with cubital tunnel syndrome in whom surgical intervention was simple decompression or anterior Transposition (subcutaneous or submuscular) were included. Analysis was limited to randomized controlled trials and comparative observational studies. Included studies were assessed for quality, heterogeneity, and publication bias. Odds ratios of clinical improvement comparing simple decompression to anterior Transposition (submuscular or subcutaneous) were calculated for each study. Results Ten studies involving a total of 449 simple decompressions, 342 subcutaneous Transpositions, and 115 submuscular Transpositions were included. There was little evidence of publication bias or statistical study heterogeneity. Odds of improvement with simple decompression versus anterior Transposition were 0.751, 95% confidence interval (0.542, 1.040). Subanalyses on the basis of Transposition technique (subcutaneous or submuscular) and study quality did not render a statistically significant result. Conclusions This report represents the best cumulative evidence to date examining the surgical management of cubital tunnel syndrome. In this study, we found no statistically significant difference, but rather a trend toward an improved clinical outcome with Transposition of the ulnar nerve as opposed to simple decompression. Additional prospective, randomized studies that use reproducible preoperative and postoperative objective measures might add statistical power to this finding. Type of study/level of evidence Therapeutic II.
Yanping Liang - One of the best experts on this subject based on the ideXlab platform.
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Analytical Algorithm for Strand End Leakage Reactance of Transposition Bar in AC Machine
IEEE Transactions on Energy Conversion, 2015Co-Authors: Yanping Liang, Xu Bian, Honghao Yu, Lei Wu, Bing WangAbstract:Calculation of circulating current in Transposition bars is the key problem in the design of stator windings, which will determine the Transposition type of stator windings. The circuit equation method, in which the calculation of strand end leakage reactance in Transposition bars is the premise, is widely used in engineering to calculate circulating current. This paper describes an analytical algorithm for the calculation of strand end leakage reactance in Transposition bars, which is based on mirror image principle. The end leakage reactance of strands in Transposition bar is calculated by the integral of Transposition path discretized into many key points. Contrary to the existing calculation method, the analytical algorithm proposed in this paper is a general method for calculating the end leakage reactance, which can simulate the Transposition path of strands in the end region for different Transposition types. In order to validate the proposed method, the end coil self and mutual leakage reactance are calculated by proposed analytical algorithm and finite element method.
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Analytic Algorithm for Strand Slot Leakage Reactance of the Transposition Bar in an AC Machine
IEEE Transactions on Industrial Electronics, 2014Co-Authors: Yanping Liang, Xu Bian, Honghao Yu, Lei Wu, Lichao YangAbstract:Calculation of circulating current in Transposition bars is the key problem in the design of stator windings, which will determine the Transposition type of stator windings. The circuit equation method, in which the calculation of strand slot leakage reactance in Transposition bars is the premise, is widely used in engineering to calculate circulating current. This paper describes an analytical algorithm for the calculation of strand slot leakage reactance in Transposition bars called discrete integral method. The presented method is based on Ampere's circuit law. The slot leakage reactance of strands in Transposition bars is calculated by the integral of the Transposition path discretized into many key points under the proper coordinate system. Contrary to the existing calculation formula, the discrete integral method is a general method for the calculation of slot leakage reactance, which can simulate the Transposition path of different Transposition types. In order to validate the discrete integral method, the circulating current generated by slot leakage magnetic field of two typical Transposition bars is calculated by circuit equation method and finite-element method.
Olgica Milenkovic - One of the best experts on this subject based on the ideXlab platform.
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Codes in the Damerau Distance for Deletion and Adjacent Transposition Correction
IEEE Transactions on Information Theory, 2018Co-Authors: Ryan Gabrys, Eitan Yaakobi, Olgica MilenkovicAbstract:Motivated by applications in DNA-based storage, we introduce the new problem of code design in the Damerau metric. The Damerau metric is a generalization of the Levenshtein distance which, in addition to deletions, insertions, and substitution errors also accounts for adjacent Transposition edits. We first provide constructions for codes that may correct either a single deletion or a single adjacent Transposition and then proceed to extend these results to codes that can simultaneously correct a single deletion and multiple adjacent Transpositions. We conclude with constructions for joint block deletion and adjacent block Transposition error-correcting codes.
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Codes in the damerau distance for DNA storage
IEEE International Symposium on Information Theory - Proceedings, 2016Co-Authors: Ryan Gabrys, Eitan Yaakobi, Olgica MilenkovicAbstract:We introduce the new problem of code design in the Damerau metric. The Damerau metric is a generalization of the Levenshtein distance which also allows for adjacent Transposition edits. We first provide constructions for codes that may correct either a single deletion or a single adjacent Transposition and then proceed to extend these results to codes that can simultaneously correct a single deletion and multiple adjacent Transpositions.
Sheina A Macadam - One of the best experts on this subject based on the ideXlab platform.
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simple decompression versus anterior subcutaneous and submuscular Transposition of the ulnar nerve for cubital tunnel syndrome a meta analysis
Journal of Hand Surgery (European Volume), 2008Co-Authors: Sheina A Macadam, Rajiv Gandhi, Michael Bezuhly, Kelly A LefaivreAbstract:Purpose Optimal surgical management of cubital tunnel syndrome remains uncertain despite the publication of numerous case series, observational studies, systematic reviews, and, in recent years, randomized controlled studies. The purpose of this meta-analysis was to compare simple decompression to anterior Transposition of the ulnar nerve for the treatment of this condition, using comparative trials and randomized controlled trials. Methods Computerized database searches of MEDLINE, EMBASE, Cochrane Central, and all relevant surgical archives were performed. Studies involving adults with cubital tunnel syndrome in whom surgical intervention was simple decompression or anterior Transposition (subcutaneous or submuscular) were included. Analysis was limited to randomized controlled trials and comparative observational studies. Included studies were assessed for quality, heterogeneity, and publication bias. Odds ratios of clinical improvement comparing simple decompression to anterior Transposition (submuscular or subcutaneous) were calculated for each study. Results Ten studies involving a total of 449 simple decompressions, 342 subcutaneous Transpositions, and 115 submuscular Transpositions were included. There was little evidence of publication bias or statistical study heterogeneity. Odds of improvement with simple decompression versus anterior Transposition were 0.751, 95% confidence interval (0.542, 1.040). Subanalyses on the basis of Transposition technique (subcutaneous or submuscular) and study quality did not render a statistically significant result. Conclusions This report represents the best cumulative evidence to date examining the surgical management of cubital tunnel syndrome. In this study, we found no statistically significant difference, but rather a trend toward an improved clinical outcome with Transposition of the ulnar nerve as opposed to simple decompression. Additional prospective, randomized studies that use reproducible preoperative and postoperative objective measures might add statistical power to this finding. Type of study/level of evidence Therapeutic II.
Bing Wang - One of the best experts on this subject based on the ideXlab platform.
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Analytical Algorithm for Strand End Leakage Reactance of Transposition Bar in AC Machine
IEEE Transactions on Energy Conversion, 2015Co-Authors: Yanping Liang, Xu Bian, Honghao Yu, Lei Wu, Bing WangAbstract:Calculation of circulating current in Transposition bars is the key problem in the design of stator windings, which will determine the Transposition type of stator windings. The circuit equation method, in which the calculation of strand end leakage reactance in Transposition bars is the premise, is widely used in engineering to calculate circulating current. This paper describes an analytical algorithm for the calculation of strand end leakage reactance in Transposition bars, which is based on mirror image principle. The end leakage reactance of strands in Transposition bar is calculated by the integral of Transposition path discretized into many key points. Contrary to the existing calculation method, the analytical algorithm proposed in this paper is a general method for calculating the end leakage reactance, which can simulate the Transposition path of strands in the end region for different Transposition types. In order to validate the proposed method, the end coil self and mutual leakage reactance are calculated by proposed analytical algorithm and finite element method.
