Results 111 to 120 of about 890,810 (300)
Zero‐Waste Manufacturing of Ophthalmic Lenses by Direct Fluidic Shaping in Arbitrary Domains
Advanced Materials Technologies, EarlyView.Conventional ophthalmic lens manufacturing discards up to 97% of material through subtractive processes. The Cookie Cutter algorithm extends Fluidic Shaping to arbitrary rim geometries. The framework prescribes a spatially varying boundary height that, under neutral buoyancy and surface tension, shapes curable polymer into spherocylindrical lenses that
Yotam Katzman +6 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata +7 more
wiley +1 more source
A Survey of Elliptic Curve Cryptography Implementation Approaches for Efficient Smart Card Processing [PDF]
, 2012 Smart cards have been used for many different purposes over the last two decades, from simple prepaid credit counter cards used in parking meters, to high security identity cards intended for national ID programs.
Dr. Jayabhaskar Muthukuru +1 more
core
EFFICIENCY AND EFFECTIVENESS ANALYSIS OVER ECC-BASED DIRECT AND INDIRECT AUTHENTICATION PROTOCOLS: AN EXTENSIVE COMPARATIVE STUDY [PDF]
ICTACT Journal on Communication Technology, 2012 Elliptic curve cryptography finds enormous applications because of its security offering using the remarkable property of elliptic curve. The Elliptic curve cryptography finds enormous applications in almost all the emerging areas.
K. Thilagavathi, P.G.Rajeswari
doaj
Basis‐Independent Geometric Phase Modulation in Circularly Birefringent Plasmonic Structures
Advanced Optical Materials, EarlyView.Here we introduce a plasmonic metasurface composed of spatially rotated chiral spiral unit cells designed to produce space‐variant circular retardance. This generates a geometric phase ramp equivalent to a blazed grating, leading to polarization dependent diffraction orders in momentum space.
Pasha Goz +3 more
wiley +1 more source
Pipelining GF(P) Elliptic Curve Cryptography Computation [PDF]
, 2006 This paper proposes a new method to compute Elliptic Curve Cryptography in Galois Fields GF(p). The method incorporates pipelining to utilize the benefit of both parallel and serial methodology used before.
Kayali, Ahmad +2 more
core +1 more source
Advanced Robotics Research, EarlyView.This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska +2 more
wiley +1 more source
An efficient method to generate elliptic curves
Tongxin xuebao, 2001 In this paper, an efficient method to generate elliptic curves for public key cryptosystems based on discrete logarithm problem is presented. Usually, to resist possible attacks, such as MOV reduction, public key cryptosystems based on elliptic curve E ...
ZHOU Chang-ying1 +2 more
doaj +2 more sources
Phase-Image-Encryption-Based Elliptic Curve and Double-Random-Phase Encoding
Engineering ProceedingsIn this paper, we proposed an enhanced asymmetric cryptosystem scheme for image encryption using a combination of Elliptic Curve and Fourier transformations. Our proposed encryption and decryption process is highly secure with a smaller key size compared
Arabind Kumar, Sanjay Yadav, Tarul Garg
doaj +1 more source
On isogenies of elliptic curves
Glasnik matematički, 2000 We give a characterization of ellptic curves which are isogenous over two different quadratic extensions of a fixed number field.
openaire +4 more sources