Wenjing Qi

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The destination of a traditional robot navigation task is usually a static location. However, many real life applications require a robot to continuously identify and find its way toward a non-static target, e.g., following a walking person. In this paper, we present a navigation framework for this task which is based on simultaneous navigation and(More)
OBJECTIVE Aortic surgeries requiring hypothermic circulatory arrest evoke systemic inflammatory responses that often manifest as vasoplegia and hypotension. Because mast cells can rapidly release vasoactive and proinflammatory effectors, we investigated their role in intraoperative hypotension. METHODS We studied 31 patients undergoing proximal aortic(More)
Zr(IV) can form phosphate and Zr(IV) (-PO₃(2-)-Zr(4+)-) complex owing to the high affinity between Zr(IV) with phosphate. Zr(IV) can induce the aggregation of gold nanoparticles (AuNPs), while adenosine triphosphate(ATP) can prevent Zr(IV)-induced aggregation of AuNPs. Herein, a visual and plasmon resonance absorption (PRA)sensor for ATP have been developed(More)
Aptasensors based on stripping voltammetry exhibit several advantages, such as high sensitivity and multi-target detection from stripping voltammetric technology, and high selectivity from the specific binding of apamers with targets. This review comprehensively discusses the recent accomplishments in signal amplification strategies based on nanomaterials,(More)
A novel object tracking method based on RGB-D camera is proposed to handle fast appearance change, occlusion, background clutter which may arise for vision-based robot navigation. It makes use of appearance and depth information that are complementary to each other in visual perception to get robust tracking. First, RGB image and depth information are(More)
The goal of the Columbia Undergraduate Law Review is to provide Columbia University and the public with an opportunity for the discussion of law-related ideas and the publication of undergraduate legal scholarship. It is our mission to enrich the academic life of our undergraduate community by providing a forum where intellectual debate, augmented by(More)
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