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Developing highly scalable algorithms for global atmospheric modeling is becoming increasingly important as scientists inquire to understand behaviors of the global atmosphere at extreme scales. Nowadays, heterogeneous architecture based on both processors and accelerators is becoming an important solution for large-scale computing. However, large-scale(More)
One of the most essential and challenging components in a climate system model is the atmospheric model. To solve the multi-physical atmospheric equations, developers have to face extremely complex stencil kernels. In this paper, we propose a hybrid CPU-FPGA algorithm that applies single and multiple FPGAs to compute the upwind stencil for the global(More)
Current etching routes to process large graphene sheets into nanoscale graphene so as to open up a bandgap tend to produce structures with rough and disordered edges. This leads to detrimental electron scattering and reduces carrier mobility. In this work, we present a novel yet simple direct-growth strategy to yield graphene nanomesh (GNM) on a patterned(More)
We detailed a facile detection technique to optically characterize graphene growth and domains directly on growth substrates through a simple thermal annealing process. It was found that thermal annealing transformed the naked Cu to Cu oxides while keeping graphene and graphene-covered Cu intact. This increases the interference color contrast between Cu(More)
Just Accepted This is a " Just Accepted " manuscript, which has been examined by the peer-review process and has been accepted for publication. A " Just Accepted " manuscript is published online shortly after its acceptance, which is prior to technical editing and formatting and author proofing. Tsinghua University Press (TUP) provides " Just Accepted " as(More)
Keywords: nanoporous gold film Ni foam electrochemical sensors hydrogen peroxide hydrazine A B S T R A C T Herein we develop an enzyme-free electrochemical sensor for hydrogen peroxide (H 2 O 2) and hydrazine (N 2 H 4) by preparing three-dimensional nanoporous gold (NPG) supported on three dimensional Ni foam. The NPG@Ni foam hybrid electrode was prepared(More)
To understand characteristics of cyanobacterial granules from Lake Taihu, dissolved oxygen (DO), pH, and redox potential (Eh) microelectrodes were used to investigate physiological responses within these granules under different irradiance, temperature, and external pH levels. DO and pH levels increased with rising irradiance, while the Eh had an opposite(More)