Results 101 to 110 of about 4,666,531 (283)

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

A practical verifiable multi-secret sharing scheme

, 2020
A (t,n) multi-secret sharing scheme, Applied Mathematics and Computation 151 (2004) 483-490] proposed an efficient multi-secret sharing scheme based on a two-variable one-way function in 2004.
M.-S Hwang, Jianjie Zhao, C.-C Yang, Rong Zhao, Jianzhong Zhang, T.-Y Chang   +5 more
core  

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Disjunctive Multi-Level Secret Sharing [PDF]

, 2008
A disjunctive multi-level secret sharing scheme divides users into different levels. Each level L is associated with a threshold t_L, and a group of users can only recover the secret if, for some L, there are at least t_L users at levels 0....L in the ...
Mira Belenkiy
core   +1 more source

A Verifiable Multi-Secret Sharing Scheme for Hierarchical Access Structure

Axioms
Sharing confidential information is a critical concern in today’s world. Secret sharing schemes facilitate the sharing of secrets in a way that ensures only authorized participants (shareholders) can access the secret using their allocated shares ...
Irfan Alam, Amal S. Alali, Shakir Ali, Muhammad S. M. Asri   +3 more
doaj   +1 more source

Ideal secret sharing schemes from permutations [PDF]

, 2006
The work presents a new method for the design of ideal secret sharing. The method uses regular mappings that are well suited for construction of perfect secret sharing.
Pieprzyk, Josef, Zhang, Xian-Mo
core   +1 more source

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Continuous-variable ramp quantum secret sharing with Gaussian states and operations

New Journal of Physics, 2019
We aim to quantify and mitigate quantum-information leakage in continuous-variable quantum secret sharing (CV QSS). Here we introduce a technique for certifying CV ramp quantum secret-sharing (RQSS) schemes in the framework of quantum interactive-proof ...
Masoud Habibidavijani, Barry C Sanders
doaj   +1 more source

A Construction for Secret Sharing Scheme with General Access Structure

, 2013
[[abstract]]Many efficient secret sharing schemes for general access structures have been developed in efforts to deal with the problems of multi-party computations (MPC), threshold cryptography, and access control.
Guo, Cheng;Guo, Cheng;張真誠;Chang, Chin-Chen
core