21 research outputs found
Massively Parallel Ray Tracing Algorithm Using GPU
Ray tracing is a technique for generating an image by tracing the path of
light through pixels in an image plane and simulating the effects of
high-quality global illumination at a heavy computational cost. Because of the
high computation complexity, it can't reach the requirement of real-time
rendering. The emergence of many-core architectures, makes it possible to
reduce significantly the running time of ray tracing algorithm by employing the
powerful ability of floating point computation. In this paper, a new GPU
implementation and optimization of the ray tracing to accelerate the rendering
process is presented
Functional characterization of D9, a novel deazaneplanocin a (DZNep) analog, in targeting acute myeloid leukemia (AML)
10.1371/journal.pone.0122983PLoS ONE104e012298
A High Accuracy & Ultra-Low Power ECG-Derived Respiration Estimation Processor for Wearable Respiration Monitoring Sensor
The respiratory rate is widely used for evaluating a person’s health condition. Compared to other invasive and expensive methods, the ECG-derived respiration estimation is a more comfortable and affordable method to obtain the respiration rate. However, the existing ECG-derived respiration estimation methods suffer from low accuracy or high computational complexity. In this work, a high accuracy and ultra-low power ECG-derived respiration estimation processor has been proposed. Several techniques have been proposed to improve the accuracy and reduce the computational complexity (and thus power consumption), including QRS detection using refractory period refreshing and adaptive threshold EDR estimation. Implemented and fabricated using a 55 nm processing technology, the proposed processor achieves a low EDR estimation error of 0.73 on CEBS database and 1.2 on MIT-BIH Polysomnographic Database while demonstrating a record-low power consumption (354 nW) for the respiration monitoring, outperforming the existing designs. The proposed processor can be integrated in a wearable sensor for ultra-low power and high accuracy respiration monitoring
In Situ Synthesis of WSe<sub>2</sub>/CMK‑5 Nanocomposite for Rechargeable Lithium-Ion Batteries with a Long-Term Cycling Stability
Transition metal
dichalcogenides (TMDs) have received intensive
interests in lithium-ion batteries owing to their unique lithium-ion
storage ability when evaluated as anode materials. In the present
work, a nanocomposite of WSe<sub>2</sub>/CMK-5 was successfully fabricated
via a nanocasting route, introducing the unique structure of mesoporous
carbon (CMK-5) as a nanorecator. Benefiting from a synergetic effect
of WSe<sub>2</sub> nanosheets and mesoporous carbon, the WSe<sub>2</sub>/CMK-5 hybrid electrode exhibited large reversible capacity, high
rate performance, and excellent long-term cycling stability. For instance,
a specific capacity of 490 mA h g<sup>–1</sup> can remain even
after 600 cycles at a current density of 0.5 A g<sup>–1</sup>
ASLAN003, a potent dihydroorotate dehydrogenase inhibitor for differentiation of acute myeloid leukemia.
10.3324/haematol.2019.230482Haematologica10592286-229