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This paper presented a practical electromagnetic absorber design with periodic cells based on the well-known Salisbury screens. The unit cell has a size of 20cm × 20cm (7λ at the resonance frequency, 11 GHz) and a thickness of 20μm conductive ink. The return loss at the resonance frequency is up to 34 dB, which has a 3.5 GHz in bandwidth at the threshold of 10 dB. The frequency bandwidth is achieved...
This paper presents the actual production procedure of an electromagnetic absorber by using the well-known Salisbury screens, which are distributed periodically to overcome the bonding difficulty between the upper and lower layers of the absorbing materials. In particular, the unit cell of the Salisbury screen is square with a 15 cm in side-length (5λ at the resonance frequency, 10 GHz) and 30 µm...
We demonstrate narrow-bandwidth (< 1 nm) contradirectional couplers in silicon sidewall-modulated strip waveguides and slab-modulated rib waveguides, using a CMOS-compatible technology. They have box-like responses, low insertion losses, and no need of a circulator or isolator.
We demonstrate a novel silicon microring resonator using grating-assisted contradirecitonal couplers for wavelength-selective coupling control. A single resonant peak can be selected in a wide frequency window without impairing its quality factor.
Performance of data streaming applications is co-determined by both networking and computing resources, and therefore they should be co-scheduled and co-allocated in an integrated and coordinated way. Dynamic control of resource scheduling and allocation is required, because unilateral redundancy in either networking or computing resources may result in the overprovision of it and the other may become...
The grid is proposed to be the new computing infrastructure for cross-domain resource sharing and collaboration in virtual organizations. While most current work in grid computing community focus on adaptability of grid resource management, agility is proposed in this work as another essential requirement, aiming to provide mass customization and personalization on grid computing service provision...
Grid data streaming applications are novel from others in that they require real-time data supply while the processing is going on, which necessitates harmonious collaborations among processors, bandwidth and storage. Traditional scheduling approaches may not be sufficient for such applications, for they usually focus on only one aspect of resources, mainly computational resources. A resource management...
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