In this paper, we present a measurement based characterization of the Ultra Wideband (UWB) channel in a data center environment. We find that although a modified Saleh-Valenzuela model characterizes the UWB channel, some of the model parameters such as delay spread and log normal shadowing are unique to the data center environment.

The approach of Business Intelligence (BI) as a support function for management decisions is established in practice and theory. BI can not just be considered as a simple sequence of isolated single projects. Its coordination requires permanent efforts to keep the BI function and the business organization in alignment. In the context of the present empirical study, BI organizations have been an...

PROBLEM STATEMENT: Rigorous evaluation assures that research endeavors meet their purpose and achieve stated goals. This is especially true for federally funded exploratory research centers, which tend to be more complex due to the involvement of multiple, interdisciplinary investigators. This study provides an overview of the approach used to develop an evaluation strategy and reports the less...

Using Gross-Pitaevskii equation, we study the time reversibility of Bose-Einstein condensates (BEC) in kicked optical lattices, showing that in the regime of quantum chaos, the dynamics can be inverted from explosion to collapse. The accuracy of time reversal decreases with the increase of atom interactions in BEC, until it is completely lost. Surprisingly, quantum chaos helps to restore time r...

We describe weak BCC-algebras (also called BZ-algebras) in which the condition (xy)z = (xz)y is satisfied only in the case when elements x, y belong to the same branch. We also characterize branchwise commutative and branchwise implicative weak BCC-algebras satisfying this condition. We also describe connections between various types of implicative weak BCC-algebras.

In this paper, we propose multimedia service system, called C-iUMS (Context based intelligent Ubiquitous Multimedia Service), for smart and secure service based on context in intelligent ubiquitous home. The proposed system provides user centric multimedia service based on context including user location, user preference and device status information. In addition, the proposed system supports u...

While nesting of non-centre embedding subject relativisation as in (1a) is fully acceptable, the acceptability of nesting of centre embedding object relativisation as in (1b) deteriorates with the depth of embedding. Here we discuss relativisation in relation to Catalan and Italian first language acquisition. We report on an experiment on the child comprehension of Catalan relatives, replicatin...

This report presents a concise and complete theory of convex sets of distributions, which extends and uni es previous approaches. Lower expectations and convex sets of probability distributions are derived from axioms of preference; concepts of conditionalization, independence and conditional independence are de ned based on convex sets of distributions. c 1996 Carnegie Mellon University This r...

Taking as a starting-point the development on cooccurrence techniques for several languages, we focus on the aspects that should be considered in a NV extraction task for Basque. In Basque, NV expressions are considered those combinations in which a noun, inflected or not, is co-occurring with a verb, as erabakia hartu (‘to make a decision’), kontuan hartu (‘to take into account’) and buruz jak...