We present an 8-dimensional trellis-coded 8PSK with a symbol transition constraint that is similar to that of =4-shift quadrature phase shift keying(QPSK). This scheme can achieve a coding gain of 1.6 to 2.4 dB at the same rate of =4shift QPSK on Gaussian channel, and it has also an immunity against the integer multiples of 90 phase ambiguities. In order to label the constellation of the propos...

Hardware and software co-design is a design technique which delivers computer systems comprising hardware and software components. A critical phase of codesign process is to decompose a program into hardware and software. This paper proposes an algebraic partitioning method whose correctness is verified in the algebra of programs. We introduce the program analysis phase before program partition...

Motivated by ongoing efforts to understand the mechanism of membrane protein crystallogenesis and transport in the lipidic cubic phase, the nature of the interaction between tryptophan and the bilayer/aqueous interface of the cubic phase has been investigated. The association was quantified by partitioning measurements that enabled the free energy of interaction to be determined. Temperature-de...

We illustrate the use of phase transition behavior in the study of heuristics. Using an “annealed” theory, we define a parameter that measures the “constrainedness” of an ensemble of number partitioning problems. We identify a phase transition at a critical value of constrainedness. We then show that constrainedness can be used to analyze and compare algorithms and heuristics for number partiti...

We consider the topic of partitioning unstructured finite element meshes by a class of multilevel graph partitioning algorithms. Two issues are studied, where the first issue concerns the coarsening phase in such multilevel graph partitioning algorithms. In particular, we propose a new heuristic for matching the vertices of a graph during the coarsening phase. We compare our heuristic with two ...

present study determines not only the total amounts of metals (cr, cu and pb) in superficial agricultural soil of sistan area in eastern iran, but also the chemical partitioning of these elements in seven statistically selected cases. the analysis was run for local soil, soil treated by non-contaminated organic, compost and chemical fertilizers as well as soil treated by metal-contaminated fert...

The favourable transfer free energy for a transmembrane (TM) α-helix between the aqueous phase and lipid bilayer underlies the stability of membrane proteins. However, the connection between the energetics and process of membrane protein assembly by the Sec61/SecY translocon complex in vivo is not clear. Here, we directly determine the partitioning free energies of a family of designed peptides...

The partitioning of different cholesterol-modified single-stranded DNA molecules (chol-DNAs) between the domains of phase-separated lipid vesicles is investigated by laser-scanning confocal fluorescence microscopy. All chol-DNAs studied preferentially localized into the fluid phase of giant vesicles in liquid-solid phase coexistence (1:1 DLPC:DPPC, 1:1 DLPC:DMPE). Partitioning behavior of chol-...

Self-organization of lipid molecules into specific membrane phases is key to the development of hierarchical molecular assemblies that mimic cellular structures. While the packing interaction of the lipid tails should provide the major driving force to direct lipid partitioning to ordered or disordered membrane domains, numerous examples show that the headgroup and spacer play important but und...