  We report on a recent paper (Wei\ss\ \& Buchert 1993), where we carry out
pencil beam constructions in a high-resolution simulation of the large-scale
structure of galaxies. As an example we present the results for the case of
``Hot-Dark-Matter" (HDM) initial conditions (with scale-free $n = 1$ power
index on large scales and $\Omega = 1$) as a representative of models with
sufficient large-scale power. We use an analytic approximation for particle
trajectories of a self-gravitating dust continuum and apply a local dynamical
biasing of volume elements to identify luminous matter in the model. Using this
method, we are able to resolve formally a simulation box of 1200h^-1 Mpc (e.g.
for HDM initial conditions) down to the scale of galactic halos using $2160^3$
particles. Pencil beam probes are taken for a given epoch using the parameters
of observed beams. In particular, our analysis concentrates on the detection of
a quasi-periodicity in the beam probes. The simulation is designed for
application to parameter studies which prepare future observational projects.
We find that a large percentage of the beams shows quasi-periodicities with
periods which cluster at a certain length scale. The periods found range
between one and eight times the cutoff length in the initial fluctuation
spectrum.
