The Experts below are selected from a list of 3681 Experts worldwide ranked by ideXlab platform
Kgr Nair - One of the best experts on this subject based on the ideXlab platform.
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2014Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a ‘red spot’ at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones ( p
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2013Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a 'red spot' at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones (p < 0.05). We concluded that there was a positive correlation between the size of the Microhole and the presence of vitreomacular interface abnormalities. Visual acuity had no correlation with the size of the Microhole; functional vision was generally well preserved in the affected eyes.
Zixiang Xia - One of the best experts on this subject based on the ideXlab platform.
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Effect of Microhole-textures filled with graphite on tribological properties of WC/TiC/Co carbide tools:
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019Co-Authors: Wenlong Song, Zixiang Xia, Wang Shoujun, Xuan ZhangAbstract:To expand the industrial application of cemented carbide, micro-EDM was utilized to machine Microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...
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effect of Microhole textures filled with graphite on tribological properties of wc tic co carbide tools
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia, Xuan ZhangAbstract:To expand the industrial application of cemented carbide, micro-EDM was utilized to machine Microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...
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Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
Materials, 2018Co-Authors: Wenlong Song, Shoujun Wang, Zixiang XiaAbstract:To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the Microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the Microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the Microhole-textured tool filled with CaF2 were discussed and established.
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Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
MDPI AG, 2018Co-Authors: Wenlong Song, Shoujun Wang, Zixiang XiaAbstract:To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the Microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the Microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the Microhole-textured tool filled with CaF2 were discussed and established
Batmanabane Prakash Vaishnavi - One of the best experts on this subject based on the ideXlab platform.
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2014Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a ‘red spot’ at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones ( p
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2013Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a 'red spot' at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones (p < 0.05). We concluded that there was a positive correlation between the size of the Microhole and the presence of vitreomacular interface abnormalities. Visual acuity had no correlation with the size of the Microhole; functional vision was generally well preserved in the affected eyes.
Wenlong Song - One of the best experts on this subject based on the ideXlab platform.
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Effect of Microhole-textures filled with graphite on tribological properties of WC/TiC/Co carbide tools:
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019Co-Authors: Wenlong Song, Zixiang Xia, Wang Shoujun, Xuan ZhangAbstract:To expand the industrial application of cemented carbide, micro-EDM was utilized to machine Microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...
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effect of Microhole textures filled with graphite on tribological properties of wc tic co carbide tools
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia, Xuan ZhangAbstract:To expand the industrial application of cemented carbide, micro-EDM was utilized to machine Microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...
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Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
Materials, 2018Co-Authors: Wenlong Song, Shoujun Wang, Zixiang XiaAbstract:To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the Microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the Microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the Microhole-textured tool filled with CaF2 were discussed and established.
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Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
MDPI AG, 2018Co-Authors: Wenlong Song, Shoujun Wang, Zixiang XiaAbstract:To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the Microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the Microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the Microhole-textured tool filled with CaF2 were discussed and established
Manoj Soman - One of the best experts on this subject based on the ideXlab platform.
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2014Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a ‘red spot’ at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones ( p
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Spectral domain optical coherence tomography study of macular Microhole morphology and its correlation with vitreomacular interface abnormalities
International Ophthalmology, 2013Co-Authors: Batmanabane Prakash Vaishnavi, Unnikrishnan Nair, Manoj Soman, Kgr NairAbstract:To describe the demographic, clinical and optical coherence tomography (OCT) characteristics of macular Microholes and to determine if the size or character of the Microholes has any correlation with vitreomacular interface abnormalities. Case records of 46 eyes of 39 consecutive patients with diagnosed macular Microholes were reviewed as a non-interventional retrospective case study. Demographic and clinical features were noted from the detailed case records. Spectral domain OCT images were analysed for Microhole and retinal characteristics. SPSS 16.0 was used for statistical analysis. Main outcome measure was the presence of vitreomacular interface abnormalities in large and small macular Microholes. Of 39 patients, 21 were male and 18 were female. Most of these patients (56.4 %) presented with visual complaints. Clinically, the commonest feature was a 'red spot' at the fovea on indirect ophthalmoscopy (25 of 44 eyes; 54.3 %). Mean logMAR vision was 0.117 (±SD 0.21). 34 (76.08 %) eyes exhibited a photoreceptor loss, 38 eyes (82.6 %) had lamellar tissue defects involving layers posterior to the outer nuclear layer. The difference between means of the groups with and without vitreomacular interface abnormalities was analysed using the unpaired t test. The presence of vitreomacular interface abnormalities was significantly associated with the size of the Microhole, with larger Microholes being more likely to have vitreomacular interface abnormalities than smaller ones (p < 0.05). We concluded that there was a positive correlation between the size of the Microhole and the presence of vitreomacular interface abnormalities. Visual acuity had no correlation with the size of the Microhole; functional vision was generally well preserved in the affected eyes.
