The duplication-loss problem is to infer a species supertree from a collection of gene trees that are confounded by complex histories of gene duplication and loss events. The decision variant of this problem is NP-complete. The utility of this NP-hard problem for large-scale phylogenetic analyses has...

Techniques updating bottom topographical data are described. Positional data from a RTK-GPS are transformed to rectangular coordinates by the Gauss-Krüger Projection, and synchronized with depth data from an echo-sounder to generate three dimensional topographical data. A bottom topography over a triangular...

Consistent approximate representation space is a unified model for formal contexts, consistent formal decision contexts and inconsistent formal decision contexts. In this paper, notions of attribute reduction are first developed in a consistent approximate representation space, and then necessary and...

A tsunami generated in the North Pacific is simulated numerically. A system of partial differential equations derived from equations of a fluid dynamics were solved numerically by a finite element method. Depth data originally given in terms of longitude and latitude are transformed to projected coordinates...

Social robots may perform a variety of services like conveying information, guiding an audience, providing assistance to troubled customers and so on. In these situations, there might be a number of people who might need such assistance at the same time. Therefore, it is important to engage the audience,...

The paper continues some previous works and analyzes the possibility of phoneme generation with Elman-type neural networks. The vowels are composed of repetitions of the same elemental pattern with certain variations (assumed to be chaotic) of the signal parameters. The Elman-type network proved adequate...

Cloud computing is becoming increasingly popular. Many companies utilize cloud computing services to minimize IT infrastructure costs. The popularity of cloud computing has attracted the interest of cyber criminals. As the result, virtualized environments are a valid and attractive target for APT attacks....

The purpose of this study is to find the optimum power contribution ratio defined as the ratio of traction force applied onto rack rail by front pinion gear and rear pinion gear of monorail used in this study.At first, relation between loading weight and applied stress was investigated when loading weight...

3D and planar design software, as an indispensable aiding tool for the design industry, is widely used in architectural and landscape designs. This paper centered on the CAD-based study of comparatively important issues existing in freeway landscape designs - landscape “points” (entrances, exits and...

This paper presents a design of softdog based on FPGA and describes hardware and software design. PC applies the CP2103 to transfers data via the USB to the FPGA device without modifying the application. The SPARTAN XC2S200 FPGA is the core of the softdog. It completes acquiring, processing and sending...

In recent years, there has been a lot of interest in applying orthogonal frequency division maltiplexing (OFDM) in wireless systems because of its various advantages in lessening the severe effects of frequency selective fading. This paper firstly introduces the basic principle of OFDM, then analyses...

In this paper, according to current research on tender evaluation methods and bidding systems, the tender evaluation model was established and described in detail, and the framework and functions of the new bidding DSS(Decision Support System) of water projects in Tainjin were designed and illustrated,...

As the rapid development of computer, the quondam software development methods may not meet the requirements, people need constructing new software development methods. In order to construct new software development method, it is necessary to research the "constructing routes of new software development...

At present, wireless sensor network is widely used in sensor technology. While to design the node of WSN which is powerful, good fault tolerance, low power consumption and cheap is essential in wireless sensor network. In this article, A Family’s fire prevention method using WSN was described. Which...

A character recognition technology based on CMAC (Cerebellar Model Articulation Controller) neural network was proposed, considering the neural network with the characteristics of stability and high distinctiveness. The handwriting recognition system interface was designed and developed, which provide...

It is critically important to define the correct requirements in order to get the success when developing an intensive software system. Win approach is a good negotiation model which effectively enables the interdependent stakeholders to work out a set of satisfactory requirements. The current available...

A wireless sensor network monitor system is designed based on CC2520 to solve the problem of confusion existing in managment of library books. This method innovativly combines RFID radio frequency technology with ZigBee technology with the goal of tracking and positioning the books wirelessly.The designing...

This paper relates to local wave decomposition and back-propagation (BP) neural network.With local wave method, an arbitrary acoustic emission signal can be decomposed efficiently and accurately into a set of intrinsic mode functions (IMFs) and a residual trend. The energy feature parameters extracted...

This paper has established a Logistics Information demand model based on information technology network externalities to explain that information technology network externalities has made the logistics firms join the momentum of the information network. And based on the panel data from 1995to 2006 across...

To reduce the optimization parameters in error alignment for the multi-arm mechanical tracking augmented reality (AR) system, the improved error alignment algorithm inspired by Denavit-Hartenberg (D-H) convention commonly used in robotics is proposed. To establish new coordinate systems, the plane geometry...

In the world, the disasters often occur due to natural disasters, terrorist activity and other reasons, and the rescuers only have a very short time in the ruins to find survivors in disaster relief, or their survived chances are nearly nil. In this dangerous environment, robotics can help rescued workers....

Land resources is an important non-renewable resource, using land resources treasuring and rational is the basic policy of our country, so monitoring the land resources utilization real-time, dynamic and managing them effective are the important routines for the land management departments. With the...