Many future large-scale unattended sensor networks (USNs) are expected to follow a two-tier architecture with resource-poor sensor nodes at the lower tier and fewer resourcerich master nodes at the upper tier. Master nodes collect data from sensor nodes and then answer the queries from the network owner on their behalf. In hostile environments, master and sensor nodes may be compromised by the ...

Usually, cellular networks are modeled by placing each tier (e.g macro, pico and relay nodes) deterministically on a grid. When calculating the metric performances such as coverage probability, these idealized for not considering interference. Overcoming limitation realistic models is much appreciated. This paper considered two- two-hop network, consisting of transmission, nodes relaying messag...

Enterprise Database Management Systems (DBMS) often run on computers with dedicated storage systems. Their data access requests need to go through two tiers of cache, i.e., a database bufferpool and a storage server cache, before reaching the storage media, e.g., disk platters. A tremendous amount of work has been done to improve the performance of the first-tier cache, i.e., the database buffe...

In this paper, a novel key management model and algorithm for two-tier architecture network are proposed based on elliptic curve cryptosystem (ECC) combined with public key (CPK) technology, verifiable secret sharing technology, and two-tier architecture network technology. This novel key management algorithm is composed of several sub-algorithms, such as key generation, key update, nodes joini...

This article contributes to the development of concept second-tier cities. In this study, it is proposed identify cities based on performance indicator creative industries. To do this, DEA industries calculated for full list in Kemerovo, Sverdlovsk, Chelyabinsk, Tomsk Oblasts, Khanty-Mansi Autonomous Okrug, and Altai Krai, its clustering carried out using t-SNE machine learning method (t-distri...

With the proliferation of the computer Cloud, new software delivery methods were created. In order to build software to fit into one of these models, a scalable, easy to deploy storage tier is required. Distributed, non-SQL databases use multiple techniques to distribute information, guarantee data consistency and grow, but unfortunately most developments were designed with a single class of ap...

This paper examines different virtualization technologies with the aim of running ALICE grid jobs on the ARC middleware which is used as internal middleware for the Nordic Tier-1 centre. The Vmbatch system, which allows dynamic management of virtual worker nodes, is presented. First tests confirm that management of virtual nodes cause minimal overhead for a typical ALICE simulation job.

Src kinase has long been recognized as a factor in the progression of colorectal cancer and seems to play a specific role in the development of the metastatic phenotype. In spite of numerous studies conducted to elucidate the exact role of Src in cancer progression, downstream targets of Src remain poorly understood. Gene expression profiling has permitted the identification of large sets of ge...