Results 71 to 80 of about 91,121 (140)

Aplicação do modelo UCON abc em sistemas de comércio eletrônico B2B [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduaçõa em Ciência da Computação.Recentemente foi proposto um modelo de controle de acesso, denominado UCONABC, que além de unir alguns dos principais ...
Camy, Alexandre Rosa
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Performance of PPP and PPP-RTK with new-generation GNSS constellations and signals

Satellite Navigation
The expansion of Global Navigation Satellite Systems (GNSS) and Regional Navigation Satellite Systems (RNSS), along with broadcasting of additional signals, offers more options for Precise Point Positioning (PPP). Utilizing a number of constellations and
Xiaohong Zhang, Yuhang Yang, Haochen Yang, Xiaodong Ren, Xiaojing Lin, Xuan Le, Xin Li   +6 more
doaj   +1 more source

Real-time integrated sea surface height and wave monitoring using a GNSS buoy based on PPP-B2b service

Applied Ocean Research
High-precision real-time observation of sea surface height and wave parameters is essential for maritime safety, offshore engineering, disaster warning, and marine resource development.
Hanwen Liu, Bofeng Guo, Mingwei Di, Anmin Zhang   +3 more
doaj   +1 more source

Assessment of Galileo High Accuracy Service (HAS) test signals and preliminary positioning performance. [PDF]

GPS Solut, 2023
Naciri N, Yi D, Bisnath S, de Blas FJ, Capua R.   +4 more
europepmc   +1 more source

Synthetic Meta-Signal Observations: The Beidou Case. [PDF]

Sensors (Basel), 2023
Borio D, Gioia C.
europepmc   +1 more source

B2B emarketplace announcements and shareholder wealth [PDF]

In the business-to-business (B2B) sector, new supply-chain models within electronic marketplaces (eMarketplaces) offer firms significantly lower procurement costs, increased operating efficiencies, and expanded market opportunities.
Thomas F. Siems, Andrew H. Chen
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Algorithms Research and Precision Comparison of Different Frequency Combinations of BDS-3\GPS\Galileo for Precise Point Positioning in Asia-Pacific Region. [PDF]

Sensors (Basel), 2023
Gao M, Cao Z, Meng Z, Tan C, Zhu H, Huang L.   +5 more
europepmc   +1 more source

Estimating BDS-3 Satellite Differential Code Biases with the Single-Frequency Uncombined PPP Model. [PDF]

Sensors (Basel), 2023
Wu J, Gao S, Li D.
europepmc   +1 more source

On PPP, Unit Roots and Panels [PDF]

This paper re-assesses the panel (unit root test) evidence for PPP on four monthly data sets. We discuss and illustrate that commonly-used first generation panel unit root tests are inappropriate for PPP analysis since they are constructed for cross ...
Wagner, Martin
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O uso da tecnologia business to business (B2B) dentro dos conceitos JIT de relacionamento [PDF]

, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Este estudo aborda o uso da Tecnologia Business to Business (B2B) dentro dos conceitos JIT de Relacionamento.
Oliveira, Edmar Bonfim de
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