Results 121 to 130 of about 4,514 (297)
Deep Underground Science and Engineering, EarlyView.For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley +1 more source
Journal of King Saud University: Computer and Information SciencesSecret image sharing (SIS) possesses advantageous attributes such as loss tolerance, offering a promising solution for image protection. However, the issue remains unresolved, which is the trade-off between the transmission or storage overhead of shadow ...
Guozheng Yang +4 more
doaj +1 more source
An improved boolean-based multiple secret images sharing scheme for different sized secret images
, 2016 碩士本論文提出一個可以處理相異尺寸的多重秘密影像分享技術，在此技術中又有兩種處理方式，先將不同尺寸的秘密影像做統一的處理，再利用雜湊函數還有亂數種子產生出亂數影像，透過亂數影像和秘密影像做布林函式運算，最後產出分享影像，在處理的過程中都是利用基本運算，所以在效能上有很好的效率，在安全性上也達成了秘密影像分享的效果，最後更能處理更多不同尺寸的影像。相較其他學者所提出的分享方法，本論文針對多樣性及安全性兩方面做了更佳的改進。在安全性方面，本文採取有幾張秘密影像就生成幾張亂數影像，在得到分享影像時 ...
陳駿龍;Chen, Jyun-Long
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Deep Underground Science and Engineering, EarlyView.The graphical abstract illustrates a reconstructed in situ thermo‐hydro‐mechanical (THM) framework in which porosity serves as the central variable linking stress, pore pressure, and temperature to evolving mechanical properties of rocks. Under burial conditions, in situ stress, pore pressure, and temperature jointly govern volumetric strain and ...
Mingyuan Lu +5 more
wiley +1 more source
Sharing a Verifiable Secret Image Using Two Shadows
, 2009 [[abstract]]In this paper, we propose a novel (2,2) verifiable secret sharing (VSS) scheme, which not only protects a secret image but also allows users to verify the restored secret image in the revealing and verifying phase, for all binary, grayscale ...
Chang, C. C.;Lin, C. C.;Le, T. H. N.;Le, H. B.
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International Journal of Eating Disorders, EarlyView.ABSTRACT Objective To explore sex differences in social, health and lifestyle characteristics associated with binge‐eating behaviors in a large population‐based study. Method This study included 84,995 participants (women 52.1%) aged ≥ 15 years from the French national random population‐based EpiCov cohort.
Junko Kose +21 more
wiley +1 more source
On Converting Secret Sharing Scheme to Visual Secret Sharing Scheme
EURASIP Journal on Advances in Signal Processing, 2010 Traditional Secret Sharing (SS) schemes reconstruct secret exactly the same as the original one but involve complex computation. Visual Secret Sharing (VSS) schemes decode the secret without computation, but each share is m times as big as the original ...
Wang Daoshun, Yi Feng
doaj
A study of secure Boolean-based multiple secret image sharing scheme
, 2015 碩士 本論文提出一個以(n, n)為門檻值的多重影像秘密分享技術，在此門檻值下可以分享n張秘密影像，並透過本文所提出的演算法產生相同數量的n張分享影像，還原時必須蒐集所有分享影像後才能將秘密影像依序還原。本論文所提出的演算法以XOR布林函式運算為主，故而能有極佳的執行效能。此外，以布林運算為基礎的分享方法，需要使用亂數影像將秘密影像打亂，本論文在分享及還原時，提出亂數影像生成函式，因此在相同數量的分享影像下，可以分享更多數量的秘密影像，也不必耗費額外空間紀錄亂數影像。 相較其他學者所提出的分享方法，
吳緯杰; Wu, Wei-Jie
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International Journal of Eating Disorders, EarlyView.ABSTRACT Objective This study aimed to assess the structural validity and readability of a brief 7‐item version of the Eating Disorder Examination Questionnaire (the EDE‐Q7) among adolescents. Method Latent variable analysis was used in a sample of 263 adolescents (age range = 13–17.99y) diagnosed with an eating disorder and recruited from treatment ...
Paul E. Jenkins +7 more
wiley +1 more source
A secret image sharing scheme based on array codes
工程科学与技术, 2016 :In order to construct a Perfect and Ideal image threshold secret sharing scheme (Complete Scheme) and improve sharing efficiency, a novel secret image sharing complete scheme based on array codes with a (t, n) threshold structure was proposed.
张景中
doaj