1,472 research outputs found
sj-docx-1-pie-10.1177_09544089231169646 - Supplemental material for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089231169646 for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties by Shiv Ranjan Kumar and Ajay Sharma in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-docx-3-pie-10.1177_09544089231169646 - Supplemental material for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties
No full textSupplemental material, sj-docx-3-pie-10.1177_09544089231169646 for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties by Shiv Ranjan Kumar and Ajay Sharma in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-docx-2-pie-10.1177_09544089231169646 - Supplemental material for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties
No full textSupplemental material, sj-docx-2-pie-10.1177_09544089231169646 for Surface pre-reacted glass reinforced dental composite: Performance assessment of physicochemical, static mechanical, dynamic mechanical and wear properties by Shiv Ranjan Kumar and Ajay Sharma in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-docx-1-pie-10.1177_09544089221111291 - Supplemental material for Estimation of fatigue crack growth rate in different zones of friction stir welded AA7039
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089221111291 for Estimation of fatigue crack growth rate
in different zones of friction stir welded AA7039 by Chaitanya Sharma, Vijay Verma, Basanthkumar and
Sumit Kumar Sharma, Ajay Tripathi, Sanjay Kumar Singh, Pankaj Sonia in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
<b>sj-pdf-1-cob-10.1177_26335565221098832 – Supplemental Material for Multiple comorbid conditions and healthcare resource utilization among adult patients with hyperkalemia: A retrospective observational cohort study using association rule mining</b>
No full textSupplemental Material, sj-pdf-1-cob-10.1177_26335565221098832 for Multiple comorbid conditions and healthcare resource utilization among adult patients with hyperkalemia: A retrospective observational cohort study using association rule mining by Dingwei Dai, Ajay Sharma, Paula J Alvarez and Steven D Woods in Journal of Multimorbidity and Comorbidity</p
sj-xlsx-1-hol-10.1177_09596836231163492 – Supplemental material for A 2600-yr multiproxy record for climate and vegetation reconstruction along the Mahanadi River delta, east coast of India
No full textSupplemental material, sj-xlsx-1-hol-10.1177_09596836231163492 for A 2600-yr multiproxy record for climate and vegetation reconstruction along the Mahanadi River delta, east coast of India by Pujarini Samal, Saradambal Ramchandaran Subramanian, Jyoti Srivastava, Masud Kawsar, Madhusudanan Chandrika Manoj, Gundiga Puttojirao Gurumurthy, Mohd Munazir Chauhan, Sajid Ali, Mahboob Alam, Anupam Sharma, Partha Sarathi Jena, Ajay Shivam and Ravi Bhushan in The Holocene</p
Successful treatment of aortic root dilatation in a patient with relapsing polychondritis
No full textCase ReportCardiovascular involvement occurring in 20–30% patients is the second most common cause of mortality in patients with relapsing polychondritis. Aortic insufficiency occurs as a result of aortic root dilatation rather than primary valvular involvement. We are reporting a patient of relapsing polychondritis with aortic root dilatation, in whom institution of early and aggressive therapy successfully prevented the progression of aortic insufficiency.Aman Sharma, Tarun Mittal, Susheel Kumar, Arjun Datt Law, Ajay Wanchu, Rajiv Mahajan, Pradeep Bambery, Surjit Sing
Automated image-based detection and grading of lymphocytic infiltration in breast cancer histopathology:
No full textThe identification of phenotypic changes in breast cancer (BC) histopathology is of significant clinical importance in predicting disease outcome and prescribing appropriate therapy. One such example is the presence of lymphocytic infiltration (LI) in histopathology, which has been correlated with a variety of prognoses and theragnoses (i.e. response to treatment) in BC patients. In this thesis work a computer-aided diagnosis (CADx) system is detailed for quantitatively measuring the extent of LI from hematoxylin and eosin (H & E) stained histopathology. The CADx system is subsequently applied to BC patients expressing the HER2 gene (HER2+ BC), where LI extent has been found to correlate with nodal metastasis and distant recurrence. Although LI may be graded qualitatively by BC pathologists, there is currently no quantitative and reproducible method for measuring LI extent in HER2+ BC histopathology. Hence, a CADx system that performs this task will potentially help clinicians predict disease outcome and allow them to make better therapy recommendations for HER2+ BC patients. The CADx methodology comprises three key steps. First, a combination of region-growing and Markov Random Field algorithms is used to detect individual lymphocyte nuclei and isolate areas of LI in digitized H & E stained histopathology images. The centers of individual detected lymphocytes are used as vertices to construct a series of graphs (Voronoi Diagram, Delaunay Triangulation, and Minimum Spanning Tree) and a total of 50 architectural features describing the spatial arrangement of lymphocytes are extracted from each image. By using Graph Embedding, a non-linear dimensionality reduction method, to project the high-dimensional feature vectors into a reduced 3D embedding space, it is possible to visualize the underlying manifold that represents the continuous nature of the LI phenotype. Over a set of 100 randomized cross-validation trials, a Support Vector Machine classifier shows that the architectural feature set distinguishes HER2+ BC histopathology samples containing high and low levels of LI with a classification accuracy greater than 90%.M.S.Includes bibliographical references (p. 35-35)by Ajay Basavanhall
Accurate lumen diameter measurement in curved vessels in carotid ultrasound: an iterative scale-space and spatial transformation approach
No full textMonitoring of cerebrovascular diseases via carotid ultrasound has started to become a routine. The measurement of image-based lumen diameter (LD) or inter-adventitial diameter (IAD) is a promising approach for quantification of the degree of stenosis. The manual measurements of LD/IAD are not reliable, subjective and slow. The curvature associated with the vessels along with non-uniformity in the plaque growth poses further challenges. This study uses a novel and generalized approach for automated LD and IAD measurement based on a combination of spatial transformation and scale-space. In this iterative procedure, the scale-space is first used to get the lumen axis which is then used with spatial image transformation paradigm to get a transformed image. The scale-space is then reapplied to retrieve the lumen region and boundary in the transformed framework. Then, inverse transformation is applied to display the results in original image framework. Two hundred and two patients’ left and right common carotid artery (404 carotid images) B-mode ultrasound images were retrospectively analyzed. The validation of our algorithm has done against the two manual expert tracings. The coefficient of correlation between the two manual tracings for LD was 0.98 (p < 0.0001) and 0.99 (p < 0.0001), respectively. The precision of merit between the manual expert tracings and the automated system was 97.7 and 98.7%, respectively. The experimental analysis demonstrated superior performance of the proposed method over conventional approaches. Several statistical tests demonstrated the stability and reliability of the automated system
Corrosion and wear resistance study of Ni-P and Ni-P-PTFE nanocomposite coatings
No full textAbstractThis article reports on the corrosion and wear resistance of Ni-P and Ni-P-PTFE nanocomposite coatings deposited on mild steel substrates using the electroless plating technique. The coatings were characterized by scanning electron microscopy (SEM), energy dispersive analysis of X-Ray (EDAX), and X-ray diffractometry (XRD). The coatings were smooth and had thicknesses between 7 and 23 µm. They contained Ni, P, and additionally, F, in the case of the Ni-P-PTFE films. A broadening of the Ni peak in XRD was attributed to the amorphous nature and/or fine grain size of the films. Corrosion resistance was measured using immersion and electrochemical polarization tests in 3.5% NaCl solution whereas wear resistance was determined by the pin-on-disc method. Both Ni-P and Ni-P-PTFE coatings exhibited significant improvement in corrosion (in salty media) and wear behavior. Furthermore, the addition of PTFE in the coatings showed improvement in their corrosion resistance as well as a reduction in friction coefficient. Our testing revealed that the coatings’ wore out following the “adhesive type” mechanism.</jats:p
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