1. Pei Ma

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    1. Mentioned In 6 Articles

    2. Three-dimensional detection and quantification of defects in SiC by optical coherence tomography

      Three-dimensional detection and quantification of defects in SiC by optical coherence tomography
      Silicon carbide (SiC) is widely used in high power electronic devices. However, defects on the SiC significantly reduce the yield and decrease the performance of SiC. Accurate detection of the defects is essential in the process control. We demonstrated a noninvasive three-dimensional (3D) defect detection method for SiC using optical coherence tomography (OCT). Defects including the triangular defects, hexagonal voids, grain boundaries, and carrot defects were inspected and analyzed on ...
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      Mentions: Pei Ma
    3. Mapping conduction velocity of early embryonic hearts with a robust fitting algorithm

      Mapping conduction velocity of early embryonic hearts with a robust fitting algorithm
      Cardiac conduction maturation is an important and integral component of heart development. Optical mapping with voltage-sensitive dyes allows sensitive measurements of electrophysiological signals over the entire heart. However, accurate measurements of conduction velocity during early cardiac development is typically hindered by low signal-to-noise ratio (SNR) measurements of action potentials. Here, we present a novel image processing approach based on least squares optimizations, which enables high-resolution, low-noise conduction velocity mapping of ...
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    4. Three-dimensional correction of conduction velocity in the embryonic heart using integrated optical mapping and optical coherence tomography

      Three-dimensional correction of conduction velocity in the embryonic heart using integrated optical mapping and optical coherence tomography
      ... to correlate the structure and electrophysiology, thereby improving our understanding of heart development. Pei Ma ; Yves T. Wang ; Shi Gu ; Michiko Watanabe ; Michael W. Jenkins, et al. "Three-dimensional correction ...
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  2. About Pei Ma

    Pei Ma

    Pei Ma was born in 1987 in China. She received her Bachelor’s degree in Optical Engineering in Tianjin University in 2010. During collage, she always ranked top 3 in her major. She also took part in several research projects including designing a temperature control system for Mach-Zehnder interferometer, building an E-guide dog and free space optical method for NO2 detection. As a return of her hard work in study, research and extracurricular activities, she received many scholarships and awards such as National Scholarship, Sumsang Scholarship, top-sixteen students in Tianjin University award, excellent Student Ambassador, excellent graduate, etc. Pei is continuing her education at Case Western Reserve University and is currently a third year PhD student. She entered the Biophotonics lab leading by Prof. Andrew Rollins. Her research interest is using optical technologies (optical mapping and optical coherence tomography) to investigate embryonic heart development. She is developing an integrated system for better electrophysiology imaging in embryonic heart. Her projects include building 3D electrical-activation map, panoramic optical mapping and optical mapping in freely beating embryonic heart. She has experiences in optical design, mechanical design and image processing. Outside the lab, she also serves in different departmental committees and mentoring new students.