Haochen Kang

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Markowitz introduced his pioneering work on Modern Portfolio Theory in 1952. In this mean-variance approach to optimize a given portfolio of assets, he focused on studying the effects of asset risk, return, correlation and diversification on probable investment portfolio returns [1]. In the late 1980s, minimizing Value-at-Risk (VaR) became widely used among(More)
High channel count, large area ultrasound arrays at fine pitch require close integration of transducer elements and ASIC electronics. Composites of single crystal material and non-conducting epoxy filler can be used to increase bandwidth. Direct bonding of the composite to the ASIC leads to acoustic mismatch and excessive ringing. A collimated connection(More)
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