As an epiphyte orchid, Dendrobium catenatum relies on microorganisms for requisite nutrients. Metagenome pyrosequencing based on 16S rRNA and nifH genes was used to characterize the bacterial and diazotrophic communities associated with D. catenatum collected from 5 districts in China. Based on Meta-16S rRNA sequencing, 22 bacterial phyla and 699 genera were identified, distributed as 125 gener...

This paper deals with continuous frames and continuous Riesz bases. We introduce continuous Riesz bases and give some equivalent conditions for a continuous frame to be a continuous Riesz basis. It is certainly possible for a continuous frame to have only one dual. Such a continuous frame is called a Riesz-type frame [13]. We show that a continuous frame is Riesz-type if and only if it is a con...

optimizing the database queries is one of hard research problems. exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. the use of evolutionary methods, beca...

Computing least common subsumers in description logics is an important reasoning service useful for a number of applications. As shown in the literature, this reasoning service can be used for the approximation of concept disjunctions in description logics, the \bottom-up" construction of knowledge bases, learning tasks, and for speciic kinds of information retrieval. So far, computing the leas...

Wavelet-based multiband dynamic range compression is developed to compensate for a common hearing impairment known as recruitment of loudness. The algorithm combines standard compression with intensity-level dependent gain calculation. Complexity and performance are similar to traditional techniques. Further, the methods established here can be applied to the more adaptive wavelet packets and l...

There are several situations in which common knowledge becomes important. Among them we have games, social behaviour, and natural language. In this paper we present a multi-agent framework in which the agent are able to use not only their own private knowledge bases bu also the common knowledge they share with other agents. This approach is based on Aumann structures and the language is a simpl...

This paper presents a conceptual design for connecting ontological and geospatial knowledge bases so that the system can take advantage of the semantic power of ontologies and data storage/analysis/query power of geospatial systems. The design is based on common-place queries, such as “what is a canyon/route/road” or “where is the canyon/route/road X.”

Global and local regularities of functions are analyzed in anisotropic function spaces, under the common framework supplied by hyperbolic wavelet bases. Local and directional regularity features are characterized by means of global quantities derived from the coefficients of hyperbolic wavelet decompositions. A multifractal analysis is introduced, that jointly accounts for scale invariance and ...