Results 31 to 40 of about 116,703 (289)

Performance evaluation of different CRL distribution schemes embedded in WMN authentication [PDF]

, 2013
Wireless Mesh Networks (WMNs) have emerged as a promising technology to provide low cost and scalable solutions for high speed Internet access and additional services.
Durahim, Onur Ahmet, Levi, Albert, Savas, Erkay, Savaş, Erkay, Yıldırım, İsmail Fatih, Yildirim, Ismail Fatih   +5 more
core   +1 more source

Catalytic Functionalization of Unactivated π‐Bonds Enabled by Bidentate Directing Auxiliaries

Angewandte Chemie, EarlyView.
This review explores how bidentate directing auxiliaries have advanced transition‐metal catalysis for unactivated alkene/alkyne functionalization. By leveraging chelated intermediates, bidentate directing auxiliaries enable precise hydrofunctionalization, difunctionalization, and C─H activation of π‐bonds with unique selectivity and reactivity.
Seunghyeon Cho, Al Vicente Riano D. Lisboa, Juntao Sun, Taeho Kang, Keary M. Engle   +4 more
wiley   +2 more sources

π‐Radical Cascades to Peri‐Fused Triangulene Dimers

Angewandte Chemie, EarlyView.
We demonstrate the potential of open‐shell molecular graphene fragments as synthons for constructing graphene nanostructures via π‐radical cascades. By identifying monoradical intermediates as key selectivity‐determining species and tuning steric effects in a triangulene precursor, we show that reactivity in a formally diradical system can be ...
Paula L. Widmer, Leoš Valenta, Maximilian Mayländer, Jules Hutter, Francis J. Carta, Simon Jurt, Olivier Blacque, Laurent Bigler, Sabine Richert, Tomáš Šolomek, Michal Juríček   +10 more
wiley   +2 more sources

Ciphertext policy attribute-based encryption scheme supporting direct revocation

Tongxin xuebao, 2016
In order to support fine-grained attribute revocation in direct revocation mode an attribute-based encryption scheme with efficient revocation was proposed.The model of ABE supporting attribute revocation was given,and a con-crete scheme was constructed ...
Xi-xi YAN, Hui MENG
doaj   +2 more sources

Practical group signature scheme with verifier-local revocation

Tongxin xuebao, 2011
An efficient approach of member revocation in group signature is verifier-local revocation.In this approach,revocation messages are only sent to signature verifiers,while signers have no involvement.There are some problems in group signature with ...
LI Ji-guo, SUN Gang, ZHANG Yi-chen
doaj   +2 more sources

Authority of Revocation of Mining Business Permits in the Perspective of Administrative Law Towards Good and Environmentally Friendly Mining Governance

Nurani Hukum, 2022
The President's authority to revoke thousands of mineral and coal Mining Business Permits (IUPs) is part of the efforts of a Good & Environmentally Friendly Mining Governance system.
Wahyu Nugroho, Liza Marina, Dessy Sunarsi   +2 more
doaj   +1 more source

Authorization algorithms for permission-role assignments [PDF]

, 2009
Permission-role assignments (PRA) is one important process in Role-based access control (RBAC) which has been proven to be a flexible and useful access model for information sharing in distributed collaborative environments.
Sun, Lili, Wang, Hua, Yong, Jianming
core   +3 more sources

Attribute-based encryption scheme with efficient revocation in data outsourcing systems

Tongxin xuebao, 2015
In order to support fine-grained attribute revocation in data outsourcing systems,an attribute-based encryption scheme with efficient revocation in indirect revocation model was proposed.The model of ABE supporting attribute revocation was given,and a ...
Xi-xi YAN, Yong-li TANG
doaj   +2 more sources

Blackchain: Scalability for Resource-Constrained Accountable Vehicle-to-X Communication

, 2017
In this paper, we propose a new Blockchain-based message and revocation accountability system called Blackchain. Combining a distributed ledger with existing mechanisms for security in V2X communication systems, we design a distributed event data ...
Engelmann, Felix, Kargl, Frank, Mödinger, David, Schönig, Franziska, van der Heijden, Rens Wouter   +4 more
core   +1 more source

Designing Strong, Tough, Fire‐Retardant and Self‐Healing Elastomers with Phosphorus/Nitrogen‐ and Biphenyl‐Containing Segments

Advanced Materials, EarlyView.
By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue, Shu Gong, Zhezhe Zhou, Zhewen Ma, Yanlong Luo, Mark Lynch, Jiabing Feng, Yan Zhang, Meng Zhang, Yonghong Zhou, Wenlong Cheng, Pingan Song   +11 more
wiley   +1 more source