Michalis D. Galanis

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A high-performance data path to implement digital signal processing (DSP) kernels is introduced in this paper. The data path is realized by a flexible computational component (FCC), which is a pure combinational circuit and it can implement any 2 times 2 template (cluster) of primitive resources. Thus, the data path's performance benefits from the(More)
In this paper, the hardware implementations of five representative stream ciphers are compared in terms of performance and consumed area. The ciphers used for the comparison are the A5/1, W7, E0, RC4 and Helix. The first three ones have been used for the security part of wellknown standards. The Helix cipher is a recently introduced fast, word oriented,(More)
Insulin-like growth factor-binding protein-3 (IGFBP-3) is a member of a family of structurally conserved proteins (IGFBP-1 to -6) which act as carriers and regulators of the mitogenic peptide hormones IGF-I and IGF-II. Members of the IGFBP family share conserved cysteine-rich amino- and carboxyl-terminal regions. The amino-terminal domain of these proteins(More)
A recombinant hydroxylated fragment of human type III collagen has been produced in Saccharomyces cerevisiae by coordinated coexpression of a collagen gene fragment together with both the alpha- and beta-subunit genes for prolyl-4-hydroxylase (EC 1.14.11.2). The collagen fragment consisted of 255 residues of the helical domain and the complete C-telopeptide(More)
KASUMI block cipher is used for the security part of many synchronous wireless standards. In this paper two architectures and efficient implementations of the 64-bit KASUMI block cipher are presented. In the first one, the pipeline technique (inner-round and outer-round pipeline) is used and throughput value equal to 3584 Mbps at 56 MHz is achieved. The(More)
Each of three conserved positively-charged residues in the C-terminal region of subunit 8 of yeast (Saccharomyces cerevisiae) mitochondrial ATP synthase was replaced with isoleucine. The assembly and functional properties of the resulting variants (substituted at Arg-37, Arg-42 and Lys-47) were examined using in-vitro systems to assay import into isolated(More)
In this paper, the hardware implementations of five representative stream ciphers are compared in terms of performance and consumed area in an FPGA device. The ciphers used for the comparison are the A5/1, W7, E0, RC4 and Helix. The first three ones have been used for the security part of well-known standards, especially wireless communication protocols.(More)
It is widely known that parallel operation execution in multiprocessor systems generates a respective increase in memory accesses. Since the memory and bus subsystems provide a limited access bandwidth, the applications performance cannot be that high as the multiprocessor system capabilities promise. This is the case for the 2-Dimensional coarse-grained(More)
In this paper, a high-performance reconfigurable coarse-grain data-path, part of a hybrid reconfigurable platform, is introduced. The data-path consists of coarse-grain components that their flexibility and universality is shown to increase the system’s performance due to significant reductions in latency. A methodology of unsophisticated but efficient(More)