Healthcare is a big application scenario of blockchain, and blockchains used in healthcare are called health blockchain. In general, blockchain blocks open the transactions them public. If some privacy data involved these transactions, they will be leaked. Owing to system involving great deal data, certain security mechanisms must built protect Furthermore, because core key management schemes, appropriate schemes should designed before can system. Here, according features authors use body...

As environmental protection has gradually become the focus of enterprises' development, employee green behavior becomes an important and key antecedent to study this issue, but there have been less studies conducted with knowledge management. a result, drawing on theory planned organizational support theory, investigates how practices (environmental sharing application) affect by using questionnaire survey administered 266 employees in China reveal their complex relationship mechanism. The...

Graph coloring is a fundamental NP-hard problem in graph theory. It has wide range of real applications, such as Operations Research, Communication Network, Computational Biology and Compiler Optimization. Notable efforts have been spent on designing its approximation algorithms. Halldrsson proposed the algorithm (denoted SampleIS) with current best known ratio. However, time complexity O(|G|3), where |G| number vertices G. clear that SampleIS not practical for large graphs. In this paper,...

During the COVID-19 pandemic, panic buying, price inflation, and pollution of production processes led to economic social unrest. In response current situation, research takes less account subjective perception public buying lack reference reality effective governance. First, this paper uses prospect theory portray public’s perceived value goods in non-panic situations. Then, drawing on experience governance China, a tripartite evolutionary game model local government, green smart supply...

Body sensor networks (BSNs) are deployed around the human body to measure and process physiological signals in real time, which have wide application prospects intelligent healthcare. Physiological measured processed by BSNs involve individual privacy, thus security mechanisms must be developed secure BSNs, therein adoption of key negotiation protocols is fundamental. Due stringently limited operation resources, require these low-energy highly efficient. Recent development has discovered...

The token economy is a form of decentralized digital with the support blockchain. In economy, responsibility, rights and interests in real can be solidified on blockchain to true commitments consensus, tamper-resistance, traceability verification. These not only enhance mutual trust between economic entities, but also realize isomorphism activities activities. Furthermore, they are conducive improving protection property rights, strengthening market's allocation resources, realizing fair...

Under the new normal of economy, relationship between economic benefits and company’s environmental behavior (green behavior) has long been focus scholars’ research, but less attention paid to effect financial performance on green in China as a developing country. Thus, by adopting mixed methodology, we conduct quantitative study selecting 228 companies samples with good poor for comparative analysis, followed qualitative 20 specific cases, analyse complex mechanism how terms business...

Personal credit scoring is a fundamental problem in Finance. It has lot of emerging applications including Credit Card,Mortgage Loan and Automobile Credit, etc. Due to its importance , personal methods have been proposed. Among many other aspects client,trade reference crucial aspect for an effective scoring. In trade reference,the referee provides score describe the client with respect business between referee. Most existing assume that trustable. However,the may conspire becomes...

In recent years, with the increasing number of smart contracts, economic losses caused by contract vulnerabilities have become more and serious, security contracts has received widespread attention. response to problems high false positive rate low detection accuracy traditional vulnerability detection, as well insufficient mining features deep learning-based methods, a reentrancy method based on Conv1D-BiGRU expert knowledge is proposed, which can effectively extract local contextual...

Joint prevention and control is a social organization model dealing with the governance of public health security incidents. The modelsshould have features multiple subjects co-governing distributed cooperating. Their purposes are to solve improve efficiency incidents at executive level. However, there still many deficiencies in current data collaborative joint systems, which mainly reflected incomplete collection, unimpeded sharing, inflexible cooperation, inadequate supervision. Therefore,...

The success of disruptive technology e-business microcredit depends on users’ continuance intention to use EM the market. This study proposed a theoretical model integrating literature expectation–confirmation theory with perceived value, trust, and habit. Seven research hypotheses derived from this are validated using questionnaire survey 247 users in China. results indicate that value trust positive predictors satisfaction intention, respectively, whereas has influence microcredit. also...