A Multi-Functional Module-Based Capsule Robot

In order to realize the intervention operation in the unstructured and ample environments such as stomach and colon, a dual-spin spherical capsule robot (DSCR) driven by pure magnetic torque generated by the universal rotating magnetic field (URMF) is proposed. The coupled magnetic torque, the viscoelastic friction torque, and the gravity torque were analyzed. Furthermore, the posture dynamic model describing the electric-magnetic-mechanical-liquid coupling dynamic behavior of the DSCR in the gastrointestinal (GI) tract was established. This model is a second-order periodic variable coefficient dynamics equation, which should be regarded as an extension of the Lagrange case for the dual-spin body system under the fixed-point motion, since the external torques were applied. Based on the Floquet–Lyapunov theory, the stability domain of the DSCR for the asymptotically stable motion and periodic motion were obtained by investigating the influence of the angular velocity of the URMF, the magnetic induction intensity, and the centroid deviation. Research results show that the DSCR can realize three kinds of motion, which are asymptotically stable motion, periodic motion, and chaotic motion, according to the distribution of the system characteristic multipliers. Moreover, the posture stability of the DSCR can be improved by increasing the angular velocity of the URMF and reducing the magnetic induction intensity.

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Decomposition Analysis of Void Reactivity Coefficient for Innovative and Modified BWR Assemblies

Science and Technology of Nuclear Installations ◽

10.1155/2014/132737 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Andrius Slavickas ◽

Raimondas Pabarčius ◽

Aurimas Tonkūnas ◽

Gediminas Stankūnas

Keyword(s):

Cross Section ◽

Safety Concern ◽

Functional Module ◽

Decomposition Analysis ◽

Fuel Burnup ◽

Mox Fuel ◽

High Enrichment ◽

Reactivity Coefficient ◽

The Impact ◽

Irradiation Cycle

The decomposition analysis of void reactivity coefficient for innovative BWR assemblies is presented in this paper. The innovative assemblies were loaded with high enrichment UO2and MOX fuels. Additionally the impact of the moderation enhancement on the void reactivity coefficient through a full fuel burnup discharge interval was investigated for the innovative assembly with MOX fuel. For the numerical analysis the TRITON functional module of SCALE code with ENDF/B-VI cross section library was applied. The obtained results indicate the influence of the most important isotopes to the void reactivity behaviour over a fuel burnup interval of 70 GWd/t for both UO2and MOX fuels. From the neutronic safety concern positive void reactivity coefficient values are observed for MOX fuel at the beginning of the fuel irradiation cycle. For extra-moderated assembly designs, implementing 8 and 12 water holes, the neutron spectrum softening is achieved and consequently the lower void reactivity values. Variations in void reactivity coefficient values are explained by fulfilled decomposition analysis based on neutrons absorption reactions for separate isotopes.

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Implementation of Wide-Area and Interconnected FPGA of Embedded Devices

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.687-691.3102 ◽

2014 ◽

Vol 687-691 ◽

pp. 3102-3105

Author(s):

Qin Zhang

Keyword(s):

Design Method ◽

Functional Module ◽

Logic Device ◽

Industrial Control ◽

Embedded Internet ◽

Programmable Device ◽

The Difference ◽

Development Tendency ◽

And Control ◽

Measurement And Control

Integration with Internet is the development tendency of industrial control network, and embedded Internet technique is the key of implementation. By analyzing field bus Technology and combining actual demand, the paper proposes dial-up high-density programmable logic device solution of remote embedded measurement and control equipment. For the purpose of implementing reuse of design modules and upgrading requirement, the paper systematically expounds top-down hierarchy design method for implementing functional module division. According to the difference of implementation complexity because of the difference of functions, the paper finally analyzes the characteristics and applications of programmable device, and proposes the improvement direction.

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Mining the maximum conserved functional module from the alignment of pairwise protein interaction networks

2013 IEEE International Conference on Bioinformatics and Biomedicine ◽

10.1109/bibm.2013.6732740 ◽

2013 ◽

Author(s):

Xueqin Zhuang ◽

Yongli Wang ◽

Xiaohui Jiang ◽

Xingpeng Jiang

Keyword(s):

Protein Interaction ◽

Functional Module ◽

Protein Interaction Networks ◽

Interaction Networks

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Fault Diagnosis and Reliability Growth for Information System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.590.763 ◽

2014 ◽

Vol 590 ◽

pp. 763-767

Author(s):

Zhi Hui Huang

Keyword(s):

Information System ◽

Bayesian Network ◽

System Reliability ◽

Functional Module ◽

Decision Problems ◽

Reliability Growth ◽

Failure Data ◽

Manufacturing Execution Systems ◽

Growth Planning ◽

Manufacturing Execution

This paper aiming at the zero-failure data and uncertain-decision problems exist in the information system reliability growth process, it proposes to build the Bayesian network topology of FMEA. It adopts Leaky Noisy-OR model, and it analyses the probability that the subsystem functional module will go wrong in quantity. It solves the problem of identifying the vague and incomplete information exists in the complex system rapidly and accurately, laying the foundation for further study of the reliability growth comprehensive ability assessment of system based on the Bayesian network. In this paper, on the background of Manufacturing Execution Systems (MES) engineering, aimed at research on models and evaluation methods of reliability growth for MES, enclosing reliability of MES task and design target, reliability growth test and analysis methods, it proposes the goal of MES reliability growth planning.

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