Results 131 to 140 of about 890,810 (300)

Wireless Precise Manipulation of Tumor Spheroids Using a Millirobot Controlled by Permanent Magnetic Traps

Advanced Robotics Research, EarlyView.
A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao, Moonkwang Jeong, Anni G. Muñoz, Ann‐Sophia Müller, Fangchao Long, Shengqiang Zhou, Juntian Qu, Leoni A. Kunz‐Schughart, Tian Qiu   +8 more
wiley   +1 more source

Solving the elliptic curve discrete logarithm problem using quantum tunneling effects on the D-Wave Advantage2 quantum computer

Intelligent and Converged Networks
The computational hardness of the Elliptic Curve Discrete Logarithm Problem (ECDLP) directly determines Elliptic-Curve Cryptography (ECC) security. Quantum Annealing (QA) leverages its unique tunneling effects to effectively escape local optima.
Yu Lin, Shuaizhi Xiong, Zhi Pei, Yiliang Han, Shuaishuai Zhu, Shuxiao Yang, Chunlei Hong   +6 more
doaj   +1 more source

Force–Displacement Characterization of PNIPAM Microactuators

Advanced Robotics Research, EarlyView.
A method to experimentally establish a force–displacement diagram of poly(N‐isopropyl acrylamide) (PNIPAM) microactuators, printed by 2PP, is presented herein. PNIPAM is a hydrogel whose volume and stiffness change with temperature due to the absorption or release of water.
Manon Cassignol, Esra Yalcinkaya, Adam Chafaï, Jérémy Odent, Pierre Lambert   +4 more
wiley   +1 more source

Cryptanalysis of the Dual Elliptic Curve Pseudorandom Generator [PDF]

, 2006
The Dual Elliptic Curve Pseudorandom Generator (DEC PRG) is proposed by Barker and Kelsey in a draft NIST Special Publication. It is claimed that the pseudorandom generator is secure unless the adversary can solve the elliptic curve discrete logarithm ...
Berry Schoenmakers, Andrey Sidorenko
core   +1 more source

Periods of elliptic surfaces with $p_g=q=1$

Forum of Mathematics, Sigma
We prove that the period mapping is dominant for elliptic surfaces over an elliptic curve with $12$ nodal fibers, and that its degree is larger than $1$ . This settles the final case of infinitesimal Torelli for a generic elliptic surface.
Philip Engel, François Greer, Abigail Ward   +2 more
doaj   +1 more source

Elliptic Curve Cryptography Considerations for Securing Automation and SCADA Systems. [PDF]

Sensors (Basel), 2023
Tidrea A, Korodi A, Silea I.
europepmc   +1 more source

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

Advanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu, Damian Pociecha, Jakub Karcz, Przemysław Kula, Nataša Vaupotič, Ewa Górecka, Oleg D Lavrentovich   +8 more
wiley   +1 more source

Blockchain-Based Framework for Enhancing Interoperability and Security in EHR Exchange Using Lightweight ECC Proxy Re-Encryption

Acta Informatica Pragensia
Background: The sharing of electronic health records among hospitals is crucial for ensuring consistent patient treatment. However, the process remains challenging due to the existence of varied systems, privacy concerns and interoperability issues.
Devaramane Yogaraj Ashwini, Reval Prabhu Puneeth   +1 more
doaj   +1 more source

Orbital Magnetic Moment Controlled Converse Magnetoelectric Effect in bcc‐Co3Mn/Fe/V/PMN‐PT Multiferroic Heterostructures

Advanced Science, EarlyView.
Based on orbital magnetic moment control, a material design strategy is proposed for a giant converse magnetoelectric effect in multiferroic heterostructures. This study will pioneer a promising route toward low‐power spintronic devices with an electric field.
Takamasa Usami, Yuichi Murakami, Ryota Watarai, Yu Shiratsuchi, Yoshihiro Gohda, Kohei Hamaya   +5 more
wiley   +1 more source

Study and Implementation of Elliptic Curve Cryptosystem

, 2005
Elliptic curve cryptosystems were proposed in 1985 by Victor Miller and by Neal Koblitz independently. Since elliptic curve discrete logarithm problem is harder to solve than discrete logarithm problem in finite fields. If is believed that the key length
Jen, Li-hsiang
core