We present an exact three-dimensional wave solution to the shearing sheet equations of motion. The existence of this solution argues against transient amplification as a route to turbulence in unmagnetized disks. Moreover, because the solution covers an extensive dynamical range in wavenumber space, it is an excellent test of the dissipative properties of numerical codes. Subject headings: accr...

In modern warehouses, robots are employed along with humans to perform those jobs that are less productive and unsafe for humans. This paper focuses on the tasks where robots fetch outgoing objects from their respective storage racks and bring them to the packaging dock. This requires a careful task allocation along with route planning such that the total path traveled (cost) by all the robots ...

the ever severe dynamic competitive environment has led to increasing complexity of strategic decision making in giant organizations. strategy formulation is one of basic processes in achieving long range goals. since, in ordinary methods considering all factors and their significance in accomplishing individual goals are almost impossible. here, a new approach based on clustering method is pro...

A stereoselective practical synthetic route to indolmycin is described. The route is composed of the regioselective coupling of indolyl magnesium halide with a trans-epoxy ester, diastereoselective oxazolone ring formation with guanidine and amine exchange reaction with methylamine. In the coupling step, use of dichloromethane as co-solvent and conversion of the resulting hydroxy ester to the h...

We analyze the behavior of closed product-form queueing networks when the number of customers grows to infinity and remains proportionate on each route (or class). First, we focus on the stationary behavior and prove the conjecture that the stationary distribution at non-bottleneck queues converges weakly to the stationary distribution of an ergodic, open product-form queueing network. This ope...

MapReduce has become a popular model for large-scale data processing in recent years. Many works on MapReduce scheduling (e.g., load balancing and deadline-aware scheduling) have emphasized the importance of predicting workload received by individual reducers. However, because the input characteristics and user-specified map function of a given job are unknown to the MapReduce framework before ...

Many animals learn to follow habitual routes between important locations, but how they encode their routes is still largely unknown. Desert ants traveling between their nest and a food site develop stable, visually guided routes that can wind through desert scrub without the use of trail pheromones. Their route memories are sufficiently robust that if a nest-bound ant is caught at the end of it...

When analyzing equilibrium traac ows it is usually the link ows and link travel demands that are of interest, but in some certain cases analyses require the knowledge of route ows. It is well known that the route ows are non-unique in the static and deterministic cases of traac equilibrium. Furthermore, diierent assignment methods can generate diierent route ow output. We show how this non-uniq...

One of the main problems associated with MANETs is that mobility and the associated route discovery and maintenance procedures of reactive routing protocols cause interruptions on real-time video streams. Some of these interruptions are too large to be concealed using any sort of video technology. In this work we argue that increased bandwidth and QoS strategies do not solve problems associated...