Results 121 to 130 of about 108,194 (303)

IARSDE - Infra Estrutura de Armazenamento e Recuperação Segura de Documentos Eletrônicos: validade do documento eletrônico por tempo indeterminado [PDF]

open access: yes, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência da Computação.A proposta apresentada neste trabalho constitui-se de uma infra-estrutura de armazenamento e recuperação de documento ...
Notoya, Adriana Elissa
core  

Real‐World Safety and Effectiveness of JAK Inhibitors in Systemic Sclerosis: A Propensity‐Matched Study from the EUSTAR Cohort

open access: yesArthritis Care &Research, Accepted Article.
Objective JAK inhibitors (JAKis) have shown promising effects in early‐phase studies of SSc. We aimed to assess the safety and explore effectiveness of JAKis compared to conventional immunosuppressants in SSc. Methods A longitudinal retrospective study of the EUSTAR cohort was performed.
Stefano Di Donato   +27 more
wiley   +1 more source

Research Issues and Challenges for Multiple Digital Signatures

open access: yes, 2010
[[abstract]]In this paper, we surveyed several well-known batch ver- i cation multiple digital signatures. These schemes can batch verify multiple digital signatures which need only one veri cation instead of t veri cations.
Min-Shiang Hwang; Cheng-Chi Lee
core  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

LDSEGoV: An Efficient Lightweight Digital-Signature Algorithm Based on CDLP and Provable Security for E-Governance Authentication

open access: yesJournal of Cybersecurity and Privacy
Digital signatures serve as a crucial cryptographic primitive in an e-governance system for authenticating citizen-government interactions. Traditional methods (DSA, ECDSA) impose computational overhead on resource-limited endpoints and centralized ...
Seema Sirpal, Pardeep Singh, Om Pal
doaj   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Performance of Batch-based Digital Signatures

open access: yes, 2002
A Digital Signature is an important type of authentication in a public-key (or asymmetric) cryptographic system, and it is in wide use. The performance of an Internet server computing digital signatures online is limited by the high cost of modular ...
Cheng, William C.   +2 more
core  

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier   +17 more
wiley   +1 more source

Um modelo computacional para o funcionamento da assinatura digital no sistema de informatização processual [PDF]

open access: yes, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.A assinatura digital surgiu da necessidade de se garantir a confiabilidade e autenticidade de informações em ...
Ishikawa, Eliana Cláudia Mayumi
core  

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