An integrated environment for performance modeling is desirable in the present era of speci cation driven system design. With the complexity and the number of processors increasing rapidly, it is important to have a generic environment wherein the performance can be measured for a given processor on a given application. In this thesis, a simple, elegant and powerful language Sim-nML has been de...

Parsimonious Markov models, a generalization of variable order Markov models, have been recently introduced for modeling biological sequences. Up to now, they have been learned by Bayesian approaches. However, there is not always sufficient prior knowledge available and a fully uninformative prior is difficult to define. In order to avoid cumbersome cross validation procedures for obtaining the...

We report on the L-band RF power distribution system (PDS) developed at SLAC for Fermilab’s NML superconducting test accelerator facility. The makeup of the system, which allows tailoring of the power distribution to cavities by pairs, is briefly described. Cold test measurements of the system and the results of high power processing are presented. We also investigate the feasibility of elimina...

We characterize the complexity of several typical problems in propositional default logics. In particular, we examine the complexity of extension membership, extension existence, and extension entailment problems. We show that the extension existence problem is X; complete, even for semi-normal theories, and that the extension membership and entailment problems are X; complete and II; complete ...

The synthesis of ribosomal RNA (rRNA) is carefully tuned to match nutritional conditions. In this issue, Murayama et al. (2008) describe a mechanism that couples the energy status of the cell to heterochromatin formation and silencing of rRNA genes. They show that an altered NAD(+)/NADH ratio in response to glucose starvation regulates the silencing activity of eNoSC, a complex consisting of th...

This paper focuses on challenges related to the management of Quality of Services in IP networks and proposes a solution relying on a CORBA-based Service Architecture tightly and dynamically linked to the managed network. This architecture relies on Management Layers: EML, NML and SML inherited from the TMN architecture in order to deliver a more deterministic behaviour of the IP network. It ma...

607 Abstract— In this work, we present solutions of two problems. First, the representation of pattern recognition problem in the standard nml T table of the algorithm estimate calculation was considered. Second, the problem of finding the model, consisting of the optimal parameters of an algorithm was considered. Such procedure is carried out by the selection optimal values of the parameters o...

When developing software for embedded systems, the set of essential tools includes a compiler and an instruction set simulator. Since software and hardware are often designed in parallel, the tools must be easily adaptable to the changing target architecture. For the compiler, its back-end (the code generator) must be retargetable. Abstraction from the target machine is the key to an automated ...

This paper presents the multimedia product for teaching Natural Sciences to 10-12 years old children. In this product three pedagogical agents, Teacher and two pupils guide the learner through the virtual environment. The inclusion of a team of pedagogical agents permits us to create a micro-model of lesson activity and gives a reliable support of individual learner differences. The script-base...

Fig. 3. Inhibition of binding of ['4C]pentobarbital to rabbit antiserum by nonradioactive pentobarbital in buffered saline (0 0 *), plasma (0 O), or urine (X X). Incubation medium consisted of 0.10 ml of normal rabbit serum, 0.10 nml of rabbit antiserum (0.4 mg of protein), 0.01 ml of ['4C]pentobarbital (O.1 nmole), and 0.01 ml of either standard unlabeled pentobarbital (1 to 100 ng) or unknown...