Results 71 to 80 of about 13,195 (284)

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Performance and Statistical Analysis of Stream ciphers in GSM Communications

open access: yesJournal of Communications Software and Systems, 2020
For a stream cipher to be secure, the keystreamgenerated by it should be uniformly random with parameter 1/2.Statistical tests check whether the given sequence follow a certainprobability distribution.
Nagendar Yerukala   +2 more
doaj  

Algebraic Attack on the Alternating Step(r,s)Generator [PDF]

open access: yes, 2010
The Alternating Step(r,s) Generator, ASG(r,s), is a clock-controlled sequence generator which is recently proposed by A. Kanso. It consists of three registers of length l, m and n bits. The first register controls the clocking of the two others.
Hassanzadeh, Mehdi M., Helleseth, Tor
core  

On Parallelizing the CryptMT Stream Cipher [PDF]

open access: yesVTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
Fast stream ciphers are used extensively for encrypted data transmission in mobile networks and over multi- gigabit links. CryptMT, a recently proposed stream cipher, is one of the final candidates for standardization by the European Union's eSTREAM project. Cryptanalysis of CryptMT has discovered no feasible attacks thus far.
Deian Stefan   +3 more
openaire   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

An Intra-Slice Security Solution for Emerging 5G Networks Based on Pseudo-Random Number Generators

open access: yesIEEE Access, 2018
Future 5G networks must provide communication services to a great and heterogeneous collection of scenarios: from traditional mobile communications to emerging applications such as Industry 4.0 or the Internet of Things (IoT).
Borja Bordel   +3 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Comment on "Exposed-Key Weakness of Alpha-Eta" [Phys. Lett. A 370 (2007) 131]

open access: yes, 2008
We show that the insecurity claim of the AlphaEta cryptosystem made by C. Ahn and K. Birnbaum in Phys. Lett. A 370 (2007) 131-135 under heterodyne attack is based on invalid extrapolations of Shannon's random cipher analysis and on an invalid statistical
Ahn   +12 more
core   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

open access: yesAdvanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani   +13 more
wiley   +1 more source

The mathematical models of modernstream ciphers [PDF]

open access: yes, 2017
Дана робота присвячена аналізу сучасних потокових шифрів, а також методиці оцінювання поточних шифрів за наступними критеріями: шифрування довгих повідомлень, шифрування коротких повідомлень, ініціалізація / генерація ключових параметрів.This paper ...
Andrushkevych, Alina   +3 more
core  

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