Supply chain management (SCM) is fundamental for gaining financial, environmental and social benefits in the supply industry. However, traditional SCM mechanisms usually suffer from a wide scope of issues such as lack information sharing, long delays data retrieval, unreliability product tracing. Recent advances blockchain technology show great potential to tackle these due its salient features including immutability, transparency, decentralization. Although there are some proof-of-concept...

Recent research has demonstrated searchable blockchains that not only provide reliable search over encrypted distributed storage systems but ensure privacy is preserved. Yet, current solutions focus on single-keyword data the blockchain. To extend such approaches to multi-keyword scenarios, they essentially perform a for multiple times and take intersection of results. However, extensions suffer from efficiency issues. In particular, service peers, which process requests, will be aware...

Background With high recurrence and metastatic rates, triple-negative breast cancer (TNBC) has few therapy choices. The innate immune stimulator of interferon genes protein (STING) pathway emerged as a critical foundation for improving anticancer immunotherapy. Although 2',3'-cGAMP been shown to have therapeutic potential STING agonist in subcutaneous solid tumour treatments mice, the effect cGAMP malignancies received less attention.Methods Bioluminescence imaging technology was applied...

The Bitcoin system uses a fully replicated data storage mechanism in which each node keeps full copy of the blockchain. As number nodes increases and transactions get more complex, space are needed to store block data. scalability has become bottleneck, limiting practical application This paper proposes scheme, called RESS, integrate erasure coding technology into blockchain encode multiple blocks. Under proposed grouping method, can reduce times coded decoding. In addition, scheme based on...

With the continuous development of blockchain technology, Bitcoin as first cryptocurrency has drawn massive attention from various sectors. on-chain data storage is over 338GB September 1, 2021. According to exponential growth trend block data, size a full node will exceed 500GB in two years. The huge problem makes it difficult for general users store complete conveniently, which weakens decentralization capability network. In this work, we propose an efficient scheme (ESS) based on...

As of the end September 2021, size Bitcoin blockchain has reached 366.9GB and continues to increase at an average annual growth rate 17.6%. The large-scale demand for storage space constrains new nodes from joining network, which seriously hinders development technology. In this paper, explore data characteristics blockchain, we performed a comprehensive statistical experiment on current 680,000 blocks. analysis results indicated that in nearly 95% blocks, number spent transaction output...

Synchronous parallel tasks are widely used in HPC for purchasing high average performance, but merely consider how to guarantee good timing predictabilities. OpenMP is a promising framework multi-core real-time embedded systems. The synchronous significantly more difficult schedule and analyze due constraints posed by specifications. An important feature tied task, which must execute on the same thread during whole life cycle. This paper designs novel method, called group scheduling, tasks,...

The exponential growth of storage space in blockchain network has become a serious problem to hinder the distribution and expansion nodes. In this paper. We propose security strategy for distributed blockchains, which can delete part blockchains so that nodes only store blockchain. design kind semi-full node between full light according requirement strategy, besides describe process deleting block synchronizing block, running logic node. Finally, we perform comprehensive experiments...

Aiming at the problem university students in process of selecting course are blind and inefficiency because a lack selection guide, based on traditional collaborative filtering algorithm similarity between users., through historical data students' selection., personalized recommendation can be realized. In this paper., by collecting analyzing courses data., comparing suitable algorithm., design implement an Android applications running under IPv6 environment., to provide with recommended.,...

The capability to identify damage level of building due destructive earthquake from RS image depends on the sensor type (for example optical or SAR) and spatial resolution. It is usually estimated by considering object size pixel size, number pixels covers. Such comparison does not show effective grade identification. authors have developed quantitative methods determine using a seismic index (RSDI) which describes in an area scale street block village. RSDI differs determined through ground...

Till the end of September 2021, size Bitcoin blockchain has reached 366.9GB and continues to increase at an average annual growth rate 17.6%. The high requirement for storage space prevents new nodes from joining network, which seriously hinders development technology. In this paper, in order explore data characteristics Bitcoin's block, we performed statistical experiment on current 680,000 blocks. analysis results showed that nearly 95% blocks, number spent transaction output(STXO)...

The presence or absence of one item in a recommendation list will affect the demand for other items because customers are often willing to switch if their most preferred not available. cross-item influence, called "peers effect", has been largely ignored literature. In this paper, we develop peers-aware recommender system, named PARS. We apply ranking-based choice model capture influence and solve resultant MaxMin problem with decomposition algorithm. solves decision meanwhile estimating...

摘要:

With the continuous development of blockchain technology, Bitcoin as first cryptocurrency has drawn massive attention from various sectors. A full node on network to store over 320GB data March 9, 2021. According growth rate transactions, it is estimated that size a will exceed 400GB within two years. The storage problem makes difficult for common users easily all data, which weakens decentralization capability network. In this work, we propose an efficient scheme (ESS) based distribution...

Nowadays, many simulation environments not only can reuse existing models and tools, but also depend on operating systems hardware platforms, even more they lack the capability to execute over Internet Web. The paper addresses these disadvantages by putting forward a prototype of distributed environment based Web (DSEW). It introduces both technology software components integration with Java CORBA, which enables portability, scalability, reusability, interoperability visualization...

As smart cities continue to be developed, network traffic surges. Although edge computing improves the quality of service by shifting tasks from cloud centers locations closer through a multi-layer distributed model, there are security risks in face central node failures and internal malicious attacks, which make it difficult provide stable reliable services. In this paper, we design trusted management model device city with blockchain, introducing blockchain technology into research...

Precision evaluation is an important step in remote sensing classification. The Kappa widely used to evaluate the overall accuracy of classification result, but it cannot reflect effect a certain class. A new precision index R can apply category image. In this paper, we extracted building damage information based on object-oriented method, and discussed robust when different categories result were involved evaluation. study shows that standardized efficiency more stably has advantages

Influenced by the fusion of Internet Plus and education, Nanjing University Finance Economics launches construction "Intelligent Campus" through application NFC Smart Campus Card. Through reviewing functions mobile phone smart campus card, multiple scenes on are demonstrated advantages indicated as multi-function, optimized user experience, efficiency reliability, which improve life students enhance management after renovation project have been completed.

The seismic risk is functioned by the probability of intensity and vulnerability wealth (such as life, property etc.) in a specific space time domain. assessment essential for post earthquake loss estimation. practical building decided not only type its anti-earthquake ability certain intensity, but many other factors such site condition topography, status etc. conventional based on data with scale relatively larger grid size decimal degree, county or town level). uncertainty this level...