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With the rising number of vehicles equipped with GPS system, a lot of vehicle trajectories are produced every day. At present researchers begin to study the vehicles' trajectory data. But the current trajectory compression technology cannot be very simple and will lose much information. Therefore, this paper puts forward a data warehousing design of vehicle trajectory. It can store compressed vehicle...
This study focuses on special requirements on MOOC adoption of Chinese higher education student group (CHESG). Firstly the factors that will affect MOOC adoption of CHESG are analyzed based on the technology adoption model (TAM). Then structural equation model is built, and ten hypotheses are proposed. In the model, the correlations between perceived usefulness, perceived reputation, willingness to...
This paper presents a new structure-simple and cost-low three-wavelength erbium-doped fiber laser (TW-EDFL), which can output three wavelengths of 1530nm, 1540nm and 1550nm, and stably realize output power of 1.5mW. After researching the links among the length of erbium-doped fiber (EDF), the pump power and the output power, we get the conclusion that the best length of erbium-doped fiber (EDF) is...
Most sheet music websites provide chord sheet music document that has only simple text. The system should provide music information that is easy to understand and allows users to search and view a document in many aspects. However, music recommendation and searching capability based on music similarity of chord sequences in documents are challenging features for the system. In this paper, we present...
In this paper, the design of a prototype of a wearable guide system for the blindness is presented. The ultrasonic measurement is used to detect several obstacles such as stairs, walls and pits, and the method of TDM is applied to reduce power consumption. Through tests, its reliability and utility are verified.
This paper mainly introduces OpenADR(Open automatic demand response) transfer agreement. At the same time, this paper will introduce a new concept of wireless transmission in this protocol. The thesis also introduces the contents of protocol, such as the transfer mechanism and interactive mode. In this article, we based on OMNeT + + software to simulate the protocol communication behavior.
According to the applying needs of autonomous navigation in Earth-Moon transfer orbits in China's Lunar probe program, we study the scheme of autonomous navigation based on GNSS weak signals by taking the transfer process of ‘Chang e NO.1’ as an example. And we analyze the influence of different styles of joint-constellation on the coverage of navigation signals from the view point of engineering...
We make a research on an implementation method related to how virtual characters achieve object operations in narrative story. Through an automatic generation method, tetrahedral parameterization is produced. This is used to realize the process of interpolation in motion blending. Similarly, an improved path finding algorithm is given by us to guide the character to avoid obstacles. The compound behaviors...
In order to help people obtain useful information from patent documents in different languages. This paper proposes a cross-language retrieval system to search Chinese and English patent documents simultaneously. This system consists of query translation module, document retrieval module and user interaction module. Query translation module is used to translate query based on bilingual dictionaries...
To solve the problem of extracting the features of green fluorescent protein image, this paper proposes a method of combining a HSV model with watershed algorithm. This article based on the HSV color model, make full use of the color and brightness of image, by setting the brightness of the threshold to deal the image with binarization processing, then travel through the median filter to deal the...
Focused ultrasound (FUS) has been discovered its utility in targeted increase blood-to-brain permeability in the brain and capable of enhancing drug delivery for CNS disease treatment. To achieve successful treatment, the overall FUS exposure process relies on employing a sophisticated treatment planning procedure to precisely target the ultrasound energy to the aim and compensate the skull-induced...
In this paper, a single machine scheduling problem with deterioration jobs is investigated. It focuses on considering a new deterioration model and different deterioration rates for minimizing the makespan. Firstly, a mixed integer programming model for the scheduling problem is presented. Secondly, according to characteristics of the problem, dominance properties and lower bounds are proposed and...
An electronic marketplace (e-marketplace) is a common business information space populated with many entities of different system types. Each of them has its own context of how to build and process documents. This leads to heterogeneous e-marketplace documents in terms of syntax and semantics, which are difficult to make interoperation and inference from one entity to another. This paper proposes...
Text similarity computing plays an important role in natural language processing. In this paper, we build a word vector model based on neural network, and train Chinese corpus from Sohu News, World News, and so on. Meanwhile, a method of calculating the text semantic similarity using word vector is proposed. Finally, through comparing with the traditional calculation method TF-IDF, the experimental...
Networked video courseware(NVC) provides a new research perspective for resource development in education technology field by combining education technology and film arts knowledge. Teachers often have difficulty in fulfilling complex courseware designs due to the lack of sufficient film arts knowledge. This paper presents a systematic object-oriented knowledge modeling which is developed and described...
Aviation Cyber-Physical Systems are the integration of cyber systems and physical systems. Recent concentration to Aviation Cyber Physical Systems (ACPS) is driven by the demand for deeper Convergence of design disciplines that integrate physical and computational worlds. In this paper, we supply a new idea to support cyber-physical system design by proposing multi-dimension and multi-domain approach;...
As the advantages of high performance and low power, the Loongson-1 processor has wide application prospects in industrial control, high-performance embedded, and other fields. Now the Loongson series platforms are mostly based on Linux operating system. However, VxWorks is a better choice for its high real-time performance and high reliability in the field of industrial control and high-performance...
This paper constructed the overall design of the elevator running parameters remote monitoring system based on zigbee technology and GPRS network, combining with the concepts and features of IoT. For the remote communication server need to parallelly handle a large number of different level datagrams, we constructed a high concurrency UDP communication model by using the technologies such as JavaNIO,...
This paper designs and implements a stable, high-performance and secure real-time data acquisition system for distribution network. The data acquisition system completes the data communication module which supports the standard IEC61870-5-104 protocol and improves the traditional data acquisition method of poll according to the actual environment of the distribution network to ensure the efficiency...
This paper proposed an improved threshold function and threshold estimation method for analyzing the characteristics of the wavelet threshold denoising. Because hard threshold denoising makes boundaries fuzzy and soft threshold denoising has Gibbs phenomenon, the new threshold function and estimation method have better adaptive. Results show that the improved method can effectively remove the white...
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