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– I analyze the topological structures generated by diffusion-limited aggregation (DLA), using the recently developed “branched growth model”. The computed bifurcation number B for DLA in two dimensions is B ≈ 4.9, in good agreement with the numerically obtained result of B ≈ 5.2. In high dimensions, B → 3.12; the bifurcation ratio is thus a decreasing function of dimensionality. This analysis ...

Colloidal particles that interact through strong, short-range, secondary attractions in liquids form irreversible "slippery" bonds that are not shear-rigid. Through event-driven simulations of slippery attractive spheres, we show that space-filling fractal clusters still emerge from the process of "slippery" diffusion-limited aggregation (DLA). Although slippery and classic DLA clusters have th...

The step size of random walks is shown to exhibit an important role in controlling the structure of clusters produced ,by the diffusion-limited aggregation (DLA) processes. In this study, the structural compactness is found to increase significantly as the random-walk size is increased. The step-size effects are precisely quantified by the radius of gyration evaluated during the cluster growth ...

Canine hypothyroid disease is similar to Hashimoto's disease in humans, which has been shown to be associated with human major histocompatibility complex (MHC) genes. We have collected 27 Doberman Pinschers affected with primary hypothyroid disease and compared their MHC class II haplotypes with 129 unaffected Doberman Pinschers. Three dog-leucocyte antigen (DLA) genes, DLA-DRB1, DQA1 and DQB1,...

We develop a technique for probing the harmonic measure of a diffusion-limited-aggregation (DLA) cluster surface with variable-size particles and generate 1000 clusters with 50 x 10(6) particles using an original off-lattice killing-free algorithm. Taking, in sequence, the limit of the vanishing size of the probing particles and then sending the growing cluster size to infinity, we achieve unpr...

After demonstrating their general expressions valid at all x, double differential 1-particle inclusive distributions inside a quark and a gluon jet produced in a hard process, together with the inclusive k⊥ distributions, are calculated at small x in the Modified Leading Logarithmic Approximation (MLLA), as functions of the transverse momentum k⊥ of the outgoing hadron. Results are compared wit...

This paper describes a digital realization of a click modulator for a class-D digital audio power amplifier. The click modulator is an interesting alternative to a classical pulse width modulator. The modulator was realized using a floating point digital signal processor ADSP21065L and FPGA circuit Spartan 3 XC3100E. Some simulation and laboratory test results are presented in this paper. Stres...

In this paper we present a method for semantic annotation of texts, which is based on a deep linguistic analysis (DLA) and Inductive Logic Programming (ILP). The combination of DLA and ILP have following benefits: Manual selection of learning features is not needed. The learning procedure has full available linguistic information at its disposal and it is capable to select relevant parts itself...

The paper presents characteristics of a permanent magnet synchronous machine designed for micro-hybrid electric vehicle operation. Appropriate design of interior permanent magnet machine with 36 stator slots and 8 stator poles for operation in motor and generator operation mode was investigated. Finite element analysis is employed in order to determine the machine performance. Streszczenie. W a...