Results 71 to 80 of about 249,617 (336)

Novel bribery mining attacks in the bitcoin system and the bribery miner's dilemma [PDF]

arXiv, 2023
Mining attacks allow adversaries to obtain a disproportionate share of the mining reward by deviating from the honest mining strategy in the Bitcoin system. Among them, the most well-known are selfish mining (SM), block withholding (BWH), fork after withholding (FAW) and bribery mining.
arxiv  

Seamless Science: Lifting Experimental Mechanical Testing Lab Data to an Interoperable Semantic Representation

Advanced Engineering Materials, EarlyView.
In pursuit of modern data management techniques, this study presents an in‐lab pipeline combining electronic laboratory notebooks (eLabFTW) and Python scripts for creating semantically enriched, interoperable, machine‐actionable data. Automating data mapping enhances usability, collaboration, and unified knowledge representation.
Markus Schilling, Sebastian Bruns, Bernd Bayerlein, Jehona Kryeziu, Jörg Schaarschmidt, Jörg Waitelonis, Pedro Dolabella Portella, Karsten Durst   +7 more
wiley   +1 more source

The Effect of Simultaneous Incorporation of PTFE Nanoparticles and Carbon Nanotubes on the Tribological Behavior of Ni-P Coating [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2016
In some engineering fields, wear resistance and a low friction coefficient are required at the sametime. In this research, PTFE nanoparticles and carbon nanotubes were co-deposited within Ni-Pmatrix to obtain an Ni-P-PTFE-CNT hybrid coating for wear ...
Hamid Rahmati, Farzad Mahboobi
doaj   +1 more source

ROLE OF HYDROGEN IN PRODUCTION OF MATERIALS FOR SPACE-SYSTEM ENGINEERING BY POWDER METALLURGY METHODS

, 2017
Hydrogen and compounds of hydrogen with metals (metal hydrides) are widely used in different industry branches as follows: 1) the reductants of especially stable oxides in mining of tungsten, molybdenum, indium, cobalt, germanium, nickel, rhenium; 2) the
Morozov Skorokhod V. V.
semanticscholar   +1 more source

KupferDigital: Ontology‐Based Digital Representation for the Copper Life Cycle

Advanced Engineering Materials, EarlyView.
It is demonstrated how data from different stages in the life cycle of a copper product can be stored in an ontology‐based data space. In order to showcase the methods and tools used in the project, four use cases are presented that show how data from different sources can be semantically described and queried from a shared data space.
Miriam Eisenbart, Thomas Hanke, Felix Bauer, Hossein Beygi Nasrabadi, Kurt Junghanns, Gordian Dziwis, Ladji Tikana, Ashak Mahmud Parvez, Karl Gerald van den Boogaart, Mohsin Sajjad, Valerie Friedmann, Johannes Preußner, Anantha Narayanan Ramakrishnan, Sandy Klengel, Lars‐Peter Meyer, Michael Martin, Ulrich Ernst Klotz, Birgit Skrotzki, Matthias Weber   +18 more
wiley   +1 more source

Studying the Effect of the Concentration of PTFE Nanoparticles on the Tribological Behavior of Ni-P-PTFE Composite Coatings [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2015
In the past 30 years, electroless nickel (EN) plating has grown to such proportions that these coatings and their applications are now found underground, in outer space, and in a myriad of areas in between.
Hamid Rahmati, Farzad Mahboobi
doaj   +1 more source

Recovering the lost gold of the developing world : bibliographic database [PDF]

, 1999
This report contains a library of 181 references, including abstracts, prepared for Project R 7120 "Recovering the lost gold of the developing world" funded by the UK' s Department for International Development (DFID) under the Knowledge and Research (
Evans, E.J., Mitchell, C.J.
core  

New Insights into Heavy Metal Sequestration Through Metal‐Phenolic Network‐Confined Nano‐HFO: Overlooking Iron Utilization and Modulating Electron Density

Advanced Science, EarlyView.
Iron‐based nanocomposites are widely used for trace heavy metal removal, but the low utilization of HFO nanoparticles remains a challenge. Here, a metal‐phenolic network (MPN) strategy is proposed to confine nano‐HFO within polystyrene beads, creating a negative electrostatic field and optimizing electron density at oxygen sites. This approach enhances
Manyu Zhang, Xiaolin Du, Zhanqi Liu, Yujia Yang, Shuo Wang, Ningyi Chen, Yulin Wang, Yaran Song, Keju Sun, Qingrui Zhang   +9 more
wiley   +1 more source

Evaluation and computational design of Ni25Al25Co15Fe15Ti8Mn7Cr5 high entropy alloy using THERMOCALC [PDF]

MATEC Web of Conferences
There has been a global demand for cutting-edge materials characterized by exceptional high-temperature performance, lightweight, and cost-effective. This study provides accurate and reliable predictions that can aid in the understanding of the material ...
Olorundaisi Emmanuel, J Babalola Bukola, Anamu Ufoma S., Teffo Moipone L., Ogunmefun Anthony O., Odetola Peter, Olubambi Peter A.   +6 more
doaj   +1 more source

The geology of the rattlesnake hill granite of Sharon, Massachusetts [PDF]

, 1913
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mining Engineering and Metallurgy, 1913.Accompanied by a graph in a folder.by W. L.
Whitehead, Walter L. (Walter Lucius), b. 1891
core