To address the negative influence caused by power randomness of distributed PV output on energy system's economic operation, in this work, an operation strategy considering uncertainty features has been designed and applied integrated hydrogen system. First, thermal system model thermoelectric control are precisely built for hydrogen-based fuel cell, respectively. Then, referring to prediction data, light intensity variation is analyzed correct curve. Finally, a cost–benefit optimal...

The typical software engineering course consists of a series lectures in which theories and concepts are communicated, and, an attempt to put this knowledge into practice, small project that the students must develop. But there simply not enough time resources for work on large size exhibit many phenomena present real-world processes. An approach address problem is allowing participate simulate developing process. We develop education game 3-D online virtual environment, second life. By...

Our recent feasibility study of a telephone-administrated Behavioral Migraine Management (BMM) program for teens revealed that while learning and improvements in migraine were encouraging, experience could be further improved with on-demand access to BMM instruction materials. To meet this demand, an iPhone application was developed help adolescent patients their counselors manage our behavioral management approach. This provides audio, video animated instructions guide the skills as well...

With the fast expansion of renewable energy systems during recent years, stability and quality smart grids using solar have been challenged because intermittency fluctuations. Hence, forecasting photo-voltaic (PV) power generation is essential in facilitating planning managing electricity distribution. In this paper, ultra-short-term method for PV investigated. Subsequently, we proposed a radial basis function (RBF)-based neural network. Additionally, to improve network generalization...

M-health applications provide a unique new way to deliver healthcare. Developing m-health involves challenges different from those encountered when developing traditional healthcare programs and e-health applications. This paper describes the development of an application for behavioral migraine management, presents lessons learned during process software engineers' perspective.

This study analyses index-based contract designs and equilibria in a competitive setting. We consider two-echelon supply chain consisting of two manufacturers retailer. Each manufacturer procures commodity spot market uses such to produce product. The initially choose either an or fixed-price contract. Thereafter, the that adopts price on basis forward prices its input commodity. Finally, products are sold through common Our analysis indicates provides with contingent pricing mechanism,...

As the search technology rapidly developed, nowadays, main engines are already able to meet users basic desire. However, current algorithms or methodologies mostly depend on keywords matching process, which could be effective for text while not efficient keywords-lacking non-text scenarios. This paper summarizes solution adopted by engine vendors, and introduces a new approach that attaches content description index based RDF standard web images in order achieve converting unstructured...

M-health applications provide a unique new way to deliver healthcare. Developing m-health involves challenges different from those encountered when developing traditional healthcare programs and e-health applications. This paper describes the development of an application for behavioral migraine management, presents lessons learned during process software engineers' perspective.

In this paper, we investigate the resource allocation for multi-user orthogonal frequency division multiple access (OFDMA) power line communication (PLC) systems, which satisfy both total average transmit constrained by PLC networks and required interference limitations. First, propose an optimal scheme, with respect to joint consideration of subcarrier constraint maximize throughput system. Then, divide intractable problem into two individual subproblems decrease computational burden, can...

With the large-scale development of electric vehicles, in order to reduce potential safety hazards charging process this paper analyzes characteristics batteries, charge and discharge equipment, power supply equipment studies fault correlation between multi-level establishes an integrated priority comprehensive evaluation model based on fuzzy analytic hierarchy process. The data interconnected platform can be used obtain a quantitative result actual demonstration effect, effect security...

Low-density parity-check (LDPC) codes can be applied in a lot of different scenarios such as video broadcasting and satellite communications. LDPC are commonly decoded by an iterative algorithm called belief propagation (BP) over the corresponding Tanner graph. The original BP updates all variable-nodes simultaneously, followed check-nodes simultaneously well. We propose sequential scheduling based on weighted bit-flipping (WBF) for sake improving convergence speed. Notoriously, WBF is...

Using a high proportion of new energy is becoming the development trend modern power industry, with broad application prospects and potential threats to system operation safety. This paper proposes hybrid adaptive velocity update relaxation particle swarm optimization algorithm (AVURPSO) recursive least square (RLS) method quickly estimate DSSR boundary using hyper-plane expression. Firstly, operating point data in high-dimension nodal injection space are analyzed AVURPSO identify key...

This paper presents a template-based solution to overcome technical barriers non-technical computer end users face when developing functional learning environments in three-dimensional virtual worlds (3DVW). iVirtualWorld, prototype of platform-independent 3DVW creation tool that implements the proposed solution, facilitates environment through semantics-based abstract representation and instantiation. iVirtualWorld provides wizard guide process, hide low-level programming 3D design details...

In order to improve the bit-flipping (BF) decoding algorithms, a weighted hard-decision based BF algorithm for low-density parity-check (LDPC) codes is presented, in which weights of variable-nodes are employed. A new metric defined weight candidate bits not only unsatisfied parity check equations but also satisfied ones. The connection between min-sum and proposed presented. Simulation results show that can provide better FER performance faster convergence speed than original bit (CBBF) algorithm.

This paper describes a nonlinear model and analysis of the axial transient response sector-shaped hydrodynamic thrust bearing-rotor system in turbo-expander under suddenly applied step load. The is comprised time-dependent Reynolds Equation for oil film forces, vibration equation shaft system. form solved by finite difference method with successive over-relaxation scheme, fourth-order Runge-Kutta Adams method. In addition, linear attempted order to evaluate its suitability situation...

To evaluate the working state of smart grid, users need to count status devices collected by multiple meters. avoid network congestion during data collection processes in an aggregation protocol is required aggregate messages from meters into one short message. However, since these may contain sensitive information meters, privacy a fundamental requirement for such protocol. At same time, tampering transmitted messages, integrity another important aggregation. Currently, issue has been well...

Focusing on the management of database authority from joint owners and security problem after modification database, this paper puts forward a digital watermarking technology based relational database. Through characteristic information algorithm, can identify copyright protect business value, thus to improve robustness algorithm has become research topic in field technology. This describes detail as premise embed watermark into using Hase function interpolation formula interpolate n times...

This paper analyzes the sets in data model of XML document described with SCHEMA and defines dependency relation, value relation two kinds fetching sets. According to these relations constraints defined by SCHEMA, it also creates a group rules mapped relational database. We have proved that mapping between database is integral after conforms 3rd normal form.

On these issues unified representation of urban transport information using ontology, it defines the statute and algebraic operations semantic fusion in ontology level order to achieve traffic completeness consistency. Thus this paper takes advantage build model with which we resolve problems as mergence equivalence verification integration. Information integration can increase function fusion, reduce amount data well enhance efficiency integrity query for help, through practical application...