The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We are delighted to invite you to participate in 2009 International Conference on Test and Measurement in Hong Kong, December 5–6, 2009.The objective of ICTM 2009 is to provide a forum for researchers, educators, engineers, and government officials involved in the general areas of Test and Measurement to disseminate their latest research results and exchange views on the future research directions...
Coordinated Control System(CCS) in thermal power plant is a system with big inertia, large time delay and slow parameter variance as well as the property of fast parameter variance while the unit load changes. Conventional PID controller and Direct Energy Balance(DEB) Strategy which is tuned at typical operating point can hardly work well at different unit load. By using the resource of Automatic...
IMC-PID(internal model control-proportional plus integral plus derivative) cascade control strategy is presented based on multiple models control theory, which keeps the merit of cascade control system as well as multiple models control. Fixed parameters PID control is used in inner loop in order to eliminate disturbances, then the inner loop and main inertia plant are regarded as the generalized...
Property simulation is an efficient approach that checks if a program satisfies certain temporal safety properties, and inter-procedural property simulation terminates in polynomial time and space. This paper first proposes a general framework for bug checking. Then, it defines function summary as a stand-in for the function. It improves property simulation and gives a new global analysis approach,...
To acquire a comprehensive evaluation on image segmentation, this paper suggests an evaluation method based on Grey Clustering Analysis. In the method, several single-performance measures of segmentation results are discussed first, and then they are used to construct some whitenization weight functions and a clustering coefficient matrix. Next, on the basis of the matrix, the segmented images and...
BPEL is a de-facto standard language for Web service orchestration. Algorithms are presented for the data flow analysis in BPEL programs which use flow and links constructs to implement concurrency and synchronization. Recently a lot of algorithms have bean proposed to concurrent program for detecting the variables usage errors, but they are not applicable to BPEL program which has unique feature...
Wireless sensor networks in the cluster algorithm use multi-hop style of communication, close to the sink node of the cluster head node transmit a lot of data which led to excessive energy consumption, the node is easily failure, finally network partitioning. This paper introduces the concept of the node load index and presents a demand-based load balancing algorithm for wireless sensor networks for...
Taking a water quality field analyzer as an example, a solution is proposed based on embedded and neural network. The hardware and the software design are introduced in detail. Then we sum up the complex nonlinear relation between the evaluation standard and the evaluation results through the continual study and training of BP neural network, and finally establish the BP neural network model. The...
When the current sensor is working in an ideal state, there is a certain linear relationship between the primary-side coil current and the vice-side coil current. However, because of the magnetizing current, the eddy current, the magnetic flux leakage and other phenomena, the current sensor has inevitable energy losses in practical working. So when the current is very small, the linear relationship...
Clustering support vector machines (CSVM) is proposed in this paper for unlabeled data classification. It is often for us to deal with a large number of data which are wholly unlabeled, e.g., classifying them, and it is impractical for us to label these data manually. Clustering algorithms can be used to generate labels for this kind of data. The global k-means clustering algorithm, the fast global...
Energy minimization for multi-core embedded systems is one of the most important issues, as well as performance. When the transition time of supply voltage is a constant, appropriate execution order of tasks can decrease the number of voltage transition and save the energy overhead of voltage transition. This paper proposes a scheduling algorithm for multi-core embedded systems running periodic dependent...
Data dependencies among tasks are inevitable and have an adverse effect on the parallelism of an application. Therefore, this paper addresses the problem of setting appropriate delays on each edge of a task graph representing an application to eliminate intra-iteration data dependencies so as to produce a prologue and epilogue as small as possible. Based on the principle of the retiming technique,...
The paper takes the chair of self-propelled gun as the research object, according to the national military standard" the armor vehicle experiments rules-the cross-country vibration test, the vibration test system is set, the vibration test is built in the cement road and soil road, and the vibration responds is analyzed on different engine's rotational velocity and vehicle's cross-country velocity...
Tourism supply chain management (TSCM) has emerged as an important area in tourism research, and is attracting increasing attention from both the academic and practitioner communities. However, researches that applied supply chain management to tourism were very limited. As for tourism, the synthesis of traveling products decides that single tourism enterprise cannot provide complete traveling products,...
In this paper, we propose a new and effective wood image retrieval scheme based on Speeded Up Robust Features (SURF). In our work, we extract SURF feature points and perform matching based on the texture information around the feature points using SURF method. This scheme can be adopted in most existing wood image retrieval systems and improve their retrieval accuracy and efficiency. Our several experiments...
In this paper, a novel technique for the recognition of weed seeds, known as Locally Linear Embedding (LLE), is presented. This experiment contains two steps: dimensionality reduction with LLE and classification. In dimensionality reduction part, LLE, which is an unsupervised non-linear technique, is used to map high dimensional data into low dimensional, neighborhood-preserving embeddings and extract...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.