Results 11 to 20 of about 936,892 (354)

SEAL: Sealed-Bid Auction Without Auctioneers [PDF]

open access: yesIEEE Transactions on Information Forensics and Security, 2020
We propose the first auctioneer-free sealed-bid auction protocol with a linear computation and communication complexity O(c), c being the bit length of the bid price. Our protocol, called Self-Enforcing Auction Lot (SEAL), operates in a decentralized setting, where bidders jointly compute the maximum bid while preserving the privacy of losing bids.
Samiran Bag   +3 more
openaire   +3 more sources

The Q0-matrix completion problem [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
A matrix is a Q0-matrix if for every k∈{1,2,…,n}, the sum of all k×k principal minors is nonnegative. In this paper, we study some necessary and sufficient conditions for a digraph to have Q0-completion. Later on we discuss the relationship between Q and
Kalyan Sinha
doaj   +1 more source

Imparities of shear avalanches dynamic evolution in a metallic glass

open access: yesMaterials Research Letters, 2020
The imparities of shear avalanches dynamic evolution under nanoindentation originating from the soft regions and the stiff matrix were explored in a metallic glass by statistical and dynamic analysis.
Yin Du   +5 more
doaj   +1 more source

Evaluation of pressure-stiffness coupling in brush seals [PDF]

open access: yes, 2010
Brush seals are comprised of fine diameter fibers densely packed between retaining and backing plates. To achieve seal compliance bristles are arranged to contact rotor with some lay angle.
Aksit, Mahmut Faruk   +2 more
core   +1 more source

Laboratory Investigation of Skid Resistance for Steel Slag Utilization as Chip Seal [PDF]

open access: yes, 2011
Slag as waste material of steel-making process has similar characteristics with aggregate that has been widely used in pavement construction. The use of slag as chip seal aggregate to provide skid resistance needs to be analyzed. In this laboratory study,
Daijiro Hori   +11 more
core   +2 more sources

PORTING ARDUPILOT TO ESP32: TOWARDS A UNIVERSAL OPEN-SOURCE ARCHITECTURE FOR AGILE AND EASILY REPLICABLE MULTI-DOMAINS MAPPING ROBOTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this article, we are interested in the implementation of an open-source low-level architecture (critical system) adapted to agile and easily replicable close-range remote sensing robots operating in multiple evolution domains.
L. Beaudoin   +4 more
doaj   +1 more source

Age-specific survival and reproductive rates of Mediterranean monk seals at the Cabo Blanco Peninsula, West Africa

open access: yesEndangered Species Research, 2021
We provide the first complete set of survival rate estimates for the Endangered Mediterranean monk seal Monachus monachus from birth into adulthood, as well as the first age-specific reproductive rates for the species.
P Fernández de Larrinoa   +10 more
doaj   +1 more source

First confirmed records of white-coat pups of the Endangered Caspian seal Pusa caspica on the coast of Iran

open access: yesOryx
The endemic Caspian seal Pusa caspica breeds on land-fast ice or stable drift ice in the northern Caspian Sea. Breeding has rarely been reported in the ice-free south-eastern Caspian Sea.
Amir S. Shirazi   +7 more
doaj   +1 more source

Cracking and Toughening Mechanisms in Nanoscale Metallic Multilayer Films: A Brief Review

open access: yesApplied Sciences, 2018
Nanoscale metallic multilayer films (NMMFs) have captured scientific interests on their mechanical responses. Compared with the properties of monolithic films, multilayers possess unique high strength as the individual layer thickness reduces to the ...
Qing Zhou   +4 more
doaj   +1 more source

Identifying the high entropy effect on plastic dynamics in bulk metallic glasses: A nanoindentation study at room and elevated temperatures

open access: yesMaterials & Design, 2020
In this study, the spatiotemporal dynamic analyses of intermittent plastic flow in the nanoindentation of different Bulk metallic glasses (BMGs), at various temperatures, were carefully performed to provide insight into the amorphous structural-property ...
Qing Zhou   +5 more
doaj   +1 more source

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