Results 131 to 140 of about 4,523 (293)

Distortion-Free Secret Image Sharing Mechanism Using Modulus Operator

open access: yes, 2009
[[abstract]]The (t, n)-threshold has been extended to secret image sharing due to its practicability. In this article, we provide a novel version that employs the modulus operator to embed the secret share into a host image.
Lin, P. Y.;Lee, J. S.;Chang, C. C.
core  

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

open access: yesEnergy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen   +6 more
wiley   +1 more source

Keeping their powder dry: Purity, pollution, and handgun ownership among Jewish women in Israel

open access: yesFeminist Anthropology, EarlyView.
Abstract This article examines the gendered practices through which Jewish women in Israel experience and negotiate personal handgun ownership in everyday life. Drawing on interviews, participant observation in gun‐related spaces, and analysis of women‐only online forums, we explore the expanding participation of Jewish women in civilian gun ownership,
Maya Maor   +3 more
wiley   +1 more source

A self-authentication mechanism for a (3,3)-threshold secret sharing scheme

open access: yes, 2012
[[abstract]]Secret sharing is widely used in secret image protection since 1979. Image secret sharing schemes are used to encrypt the secret image into several meaningless share images. Later on, the secret image can be reconstructed while collecting the
陳宜惠;Chen, Yi-Hui
core  

Multifactorial Screening for Fine‐Scale Selection of CCS Industrial Clusters and Hubs in Brazil

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT As Brazil moves toward implementing its decarbonization commitments, carbon capture and storage (CCS) hubs are emerging as a key pathway for large‐scale CO2 abatement in hard‐to‐abate sectors. This paper presents a multifactorial, data‐driven framework to screen and prioritize potential CCS industrial clusters and hubs across Brazilian regions,
Gustavo P. Oliveira   +5 more
wiley   +1 more source

Two-Layered Structure for Optimally Essential Secret Image Sharing Scheme

open access: yes, 2017
This paper presents a two-layered structure for optimally sharing a secret image among s essential and n − s non-essential shared shadows using the (t, s, k, n) essential thresholds, that t essential shared shadows and totally k shared shadows are needed
陳建彰;陳世璋;Chen, Chien-Chang;Chen, Shih-Chang
core   +1 more source

Evaluation of a Partial Ban on Rx‐Rebates in Germany

open access: yesHealth Economics, EarlyView.
ABSTRACT We investigate patients' price sensitivity for prescription (Rx) drugs with regards to patronizing online or brick‐and‐mortar pharmacies. In doing so, we exploit a policy change in Germany that prohibited online pharmacies from granting rebates to one part of the population, the members of the statutory health insurance scheme.
Maximilian M. Gail   +3 more
wiley   +1 more source

Secret Image Sharing Based on Discrete Cosine Transform

open access: yes, 2014
The main challenges facing secure image sharing tasks are the increase of sharing volume and sharing-control flexibility. A new scheme based on DCT is developed to perform packet secret image sharing, the DCT is used to reduce the secret image size ...
Ashwaq T. Hashim, Dr. Loay E. George
core   +1 more source

Revisiting the Nexus Between Trade Liberalisation and Income Inequality: The Case of Sub‐Saharan African Countries

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This paper examines the impact of trade liberalisation on income inequality across 24 Sub‐Saharan African (SSA) countries from 2000 to 2020. Using IV‐Tobit and 2SLS models, we consistently find that greater trade openness significantly exacerbates inequality in the region. Critically, we document an inverted U‐shaped relationship between trade
Guivis Zeufack Nkemgha   +2 more
wiley   +1 more source

A Secure Verifiable Scheme for Secret Image Sharing

open access: yes, 2015
Verifiable Secret Image Sharing has become an important field of study in modern cryptography. As the era demands the need of security and verifiability to resist cheating scenario, a new secret image sharing scheme identifying the existence of cheater ...
Rose, A. Angel, Thampi, Sabu M.
core   +1 more source

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