Applying chameleon hash functions to redactable blockchains is still challenging work. Most blockchain solutions using this technique have potential problems, such as too weak decentralization performance and trapdoors with exposure risks. In addition, quantum computing also threatens the security of systems. The above two issues imply that development constrained, quantum-resistance will be requirements for applications. Therefore, we constructed a function over lattices while utilizing...

A traceability system can quickly and accurately query product supply chain circulation information. It is difficult to obtain processing information achieve sharing due the big data, long duration, large amount of equipment scattered easily lost In tracing application case-based reasoning (CBR) processing, we solve problem establishing an accurate complete mathematical model between quality defects by finding a target record in historical data. The ontology CBR uses web language (OWL) for...

Vehicular Ad Hoc Network (VANET) is an important part of the modern intelligent transportation system, which can provide vehicle communication at a certain distance. More importantly, VANET route planning and autonomous driving for drivers by analyzing data. However, VANET’s data privacy security are huge challenge when serving drivers. In this paper, we propose data-sharing model (DSVN) that combines ciphertext-based attribute encryption (CP-ABE), blockchain, InterPlanetary File System...

Abstract The video request service of users in 5G network will explode, and adaptive bit rate technology can provide with reliable response. Placing resources on edge servers close to overcome the problem excessive load similar traditional centralized cloud platform solutions. Moreover, multiple caching transcoding support by collaboration mechanisms, which further improves users’ Quality Experience (QoE). However, design difficulty content distribution strategies is increased due diversity...

Organic RFID tags have the features of two-dimensional bar codes, inexpensive, flexible and thin, while also integrated merits inorganic tags, making them promising in facilitating wide application technology. In this paper, organic technology its characteristics are analyzed, feasibility rice tracing is studied. Based on analysis each links supply chain, with as means, a chain system designed using database sensors. Focusing major requirements electronic scheme proposed for tracking chain....

Grape is an important cash crop that susceptible to diseases when growing, resulting in lower yield and quality. In recent years, transformers have achieved excellent performance a variety of natural language processing image recognition tasks through the self-attention mechanism. Therefore, this paper proposes grape leaf disease model named Dense Convolutional Transformer (DensCT). The compact convolutional transformer (CCT) used as backbone model, which improves module original by...

The number of rice seedlings and their spatial distribution are the main agronomic components for determining yield. However, above information is manually obtained through visual inspection, which not only labor-intensive time-consuming but also low in accuracy. To address these issues, this paper proposes RS-P2PNet, automatically counts locates point supervision. Specifically, RS-P2PNet first adopts Resnet as its backbone introduces mixed local channel attention (MLCA) each stage. This...

Farmland area data is one of the important agricultural basic data, which provides parameter basis for precise operation equipment. In order to meet technical needs farmers and machinery service billing acquiring information farmland, this study proposes a farmland measuring instrument based on Beidou Navigation Satellite System. Firstly, overall design scheme instrument, hardware circuit algorithm are introduced, triangulation measurement emphatically analyzed. Finally, research applied....

Abstract Considering the issue with respect to high data redundancy and cost of information collection in wireless sensor nodes, this paper proposes a fusion method based on belief structure reduce attribution multi-granulation rough set. By introducing structure, attribute reduction is carried out for sets. From view granular computing, studies evidential characteristics incomplete ordered systems. On basis, positive region reduction, plausibility are put forward system analyze consistency...

Based on the data mining method, support vector machine, technology and related analysis of variable selection methods, establishing binary classification model VIP users Ordinary for commercial banks, executing prediction results verifying an Agricultural Bank in Changsha, making comparative accuracy time consuming when processing by comparing with neural network.

In view of virtual plant has practical demands on quality, image and degree realism animation in growing process plant, this thesis design the based mechanism regularity growth, propose method 3D MAX technology. After repeated analysis testing, it is concluded that there are modeling, rendering, fabrication other key technologies process. Based this, designers can subdivid into seed germination animation, growth prophase catagen later blossom animation. This paper compounds these five stages...

Objectives To translate 20-item Meaningful and Enjoyable Activities Scale into Chinese evaluate its psychometric properties amongst with mild dementia. Methods A cross-sectional study of 450 people dementia recruited from a memory disorders clinic was conducted the C-MEAS. Raw data were randomly divided two parts for exploratory factor analysis confirmatory analysis, to construct validity. Content validity reliability tested by content index Cronbach’s α coefficients, respectively. Results...

The technology of distributed objects improves the systems' reliability and extensibility, yet brings complexity management maintenance on objects. In this paper, a mechanism service object state in system based CORBA is designed, concept, theory implementation discussed detail.

This paper combined with the application of WCDMA network, embedded technology and radio terminal development technology, designed developed rural broadcasting system based on 3G Network. is easy to operate, server using network idle time intensive program push can effectively avoid storm. Meanwhile support live configuration for convenience users. combines Mobile communication Broadcast under big trend convergence, which plays an important role in broadcasting.