Yiwen Zhao

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CONTEXT Acute fatty liver of pregnancy (AFLP) and hemolysis, elevated liver enzymes, and low platelets (HELLP) syndrome are serious complications of pregnancy. Studies in families with recessively inherited mitochondrial trifunctional protein defects documented an association between these maternal illnesses and fetal deficiency of long-chain 3-hydroxyacyl(More)
BACKGROUND & AIMS Little is known about the role of mitochondrial beta-oxidation in development of nonalcoholic fatty liver disease (NAFLD). Mitochondrial trifunctional protein (MTP) catalyzes long-chain fatty acid oxidation. Recently, we generated a mouse model for MTP deficiency and reported that homozygous (MTPa-/-) mice suffer neonatal death. In this(More)
The formation control of multiple vehicles using a perceptive frame is studied in this paper. The method is applied to multiple mobile robots. The controller design and lab experiments are shown in the paper. Some useful strategies of coordination are implemented in a perceptive frame by reference projections. The feature of the coordination is illustrated(More)
STUDY DESIGN A prospective study to access the significance of preoperative planning simulator for junior surgeons' training of pedicle screw insertion. SUMMARY OF BACKGROUND DATA Pedicle screw insertion is particularly challenging to carry out on patients with abnormal spine morphology, especially for the doctors who lack experience. Currently,(More)
OBJECTIVE The purpose of this study was to evaluate the effects of fetal genotype on maternal and fetal outcomes in families with mitochondrial trifunctional protein mutations in the United States. Trifunctional protein has 3 enzymatic activities that include long-chain 3-hydroxyacyl-CoA dehydrogenase, which catalyzes long-chain fatty acid beta-oxidation.(More)
Lithium-ion battery is a kind of advanced sources and is a quite complex and nonlinear system comprised of interacting physical and chemical processes. Its state-of-charge (SOC)/ battery residual capacity (BRC), which is parameters to describe how much energy battery has, is key factors in applications; its estimations is an important and challenging task.(More)
Traditional APF-based mobile robot path planning approaches posses an inherent problem which is the formation of local minimum that probably prevent robot from arriving at the target. In view of those considerations, an improved potential field function is proposed to settle this problem. The new method includes an improved attractive potential function and(More)
When the autonomous mobile robot (AMR) is popular in unknown environment, accurate estimation of SOC (state of charge) is becoming one of the primary challenges in autonomous mobile robots research. However, as defects of the extended Kalman filter (EKF) in nonlinear estimation, there exists estimated error, which affects the estimation accuracy, when it is(More)
BACKGROUND Telomerase activity is up-regulated in pancreatic cancer. Hence, measurement of telomerase activity in pancreatic needle-biopsy specimens could assist in establishing a positive diagnosis in specimens that are inadequate for cytology. OBJECTIVE To determine the sensitivity and specificity of telomerase activity for neoplasia in a series of(More)