19,346 research outputs found
Simulation α of EEG using brain network model
In this paper, we developed a large-scale brain network model comprising of four cerebral areas in the left hemisphere, and each area is modelled as an oscillator Jansen and Rit (JR) model. Our model is based on the structural connectivity of human connectome (SC) which was a hybrid from CoCoMac neuroinformatics database and diffusion spectrum imaging (DSI.) This brain network model was designed and implemented on the neuroinformatics platform using The Virtual Brain (TVB v1.5.3). The results demonstrated that incorporating the large-scale connectivity of brain regions and neural mass of JR model can generate signals similar to the α oscillation in frequency range of (7-12HZ) of EEG
Thermal-Safe Test Scheduling for Core-Based System-on-a-Chip Integrated Circuits
Overheating has been acknowledged as a major problem during the testing of complex system-on-chip (SOC) integrated circuits. Several power-constrained test scheduling solutions have been recently proposed to tackle this problem during system integration. However, we show that these approaches cannot guarantee hot-spot-free test schedules because they do not take into account the non-uniform distribution of heat dissipation across the die and the physical adjacency of simultaneously active cores. This paper proposes a new test scheduling approach that is able to produce short test schedules and guarantee thermal-safety at the same time. Two thermal-safe test scheduling algorithms are proposed. The first algorithm computes an exact (shortest) test schedule that is guaranteed to satisfy a given maximum temperature constraint. The second algorithm is a heuristic intended for complex systems with a large number of embedded cores, for which the exact thermal-safe test scheduling algorithm may not be feasible. Based on a low-complexity test session thermal cost model, this algorithm produces near-optimal length test schedules with significantly less computational effort compared to the optimal algorithm
The sheep conceptus modulates proteome profiles in caruncular endometrium during early pregnancy
This project was funded by NHS Grampian R&D project number RG05/019Peer reviewedPostprin
Improved 3D electron tomography image reconstruction using sparse coding based adaptive dictionaries
Cost Model-Driven Test Resource Partitioning for SoCs
The increasing complexity of modern SoCs and quality expectations are making the cost of test represent an significant fraction of the manufacturing cost. The main factors contributing to the cost of test are the required number of tester pins, the test application time, the tester memory requirements and the area overhead required by the test resources. These factors contribute with different weights, depending on the cost model of each product. Several methods have been proposed to optimize each of these factors, however none of them allows an objective function derived from the actual cost model of each product. In this paper, we propose a cost model-driven test resource allocation and scheduling method that minimizes the cost of test
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