Results 81 to 90 of about 159,751 (318)

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

ОБ ОДНОМ ПОДХОДЕ К ПОИСКУ ФУНКЦИОНАЛЬНЫХ ЗАВИСИМОСТЕЙ ДАННЫХ В РЕЛЯЦИОННЫХ СИСТЕМАХ

Сучасний стан наукових досліджень та технологій в промисловості, 2018
Предметом исследования являются информационные системы, построенные на основе реляционных баз данных. Целью статьи является разработать метод для реинжиниринга реляционных баз данных, учитывающий наличие неявных взаимосвязанных функционально зависимых ...
Valentin Filatov, Stanislav Doskalenko
doaj   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

On the economy of web links: Simulating the exchange process [PDF]

arXiv, 2003
In the modern web economy hyperlinks have already attained monetary value as incoming links to a web site can increase its visibility on major search engines. Thus links can be viewed as investment instruments that can be the subject of an exchange process.
arxiv  

Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed FeCr(Si)N Stainless Steel

Advanced Engineering Materials, EarlyView.
The alloying element Nitrogen enhances stainless steel strength, corrosion resistance, and stabilizes austenite. This study develops austenitic FeCr(Si)N steel production via powder metallurgy. Fe20Cr and Si3N4 are hot isostatically pressed, creating an austenitic microstructure.
Louis Becker, Felix Radtke, Jonathan Lentz, Santiago Benito, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

SCIENTIFIC AND PRACTICAL PROPOSALS ON THE CHOICE AND APPLICATION OF STRATEGIC CONTROLLING INSTRUMENTS AT THE ENTERPRISE IN THE MODERN CONDITIONS

Сучасний стан наукових досліджень та технологій в промисловості, 2019
The object of the research is the processes of selection and application of strategic control instruments in the enterprise in modern conditions. The subject of the study is the scientific and practical principles that consist of a theoretical approach ...
Lyudmyla Malyarets, Olena Iastremska
doaj   +1 more source

Transient fluctuation of the prosperity of firms in a network economy [PDF]

, 2011
The transient fluctuation of the prosperity of firms in a network economy is investigated with an abstract stochastic model. The model describes the profit which firms make when they sell materials to a firm which produces a product and the fixed cost expense to the firms to produce those materials and product.
arxiv   +1 more source

Sociolinguistic Engineering in A Globalised Economy

Academic Journal of Interdisciplinary Studies, 2014
The fact that the world today is becoming a “global village” cannot be overemphasised. Geographical boundaries do not seem to be a hindrance to human interaction. The world seems deterritorialised and decompartmentalised. Can this phenomenal social intercourse be enhanced by linguistic factors?
James I. Udaa, Olaoluwa Duro-Bello
openaire   +3 more sources

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing—Part II: Processability by Powder Bed Fusion of Metals Using a Laser Beam

Advanced Engineering Materials, EarlyView.
In this manuscript, the processability of X2CrNiMo17‐12‐2 powder coated with silicon carbide, silicon, and silicon nitride nanoparticles is investigated. The amount of nanoparticles varies from 0.25 to 1 vol%. By coating the powder feedstock material with nanoparticles, an enlargement of the process window and an increase in the build rate are achieved.
Nick Hantke, Tim R. Brocksieper, Arne Lüddecke, Tobias Grimm, Arno Kwade, Jan T. Sehrt   +5 more
wiley   +1 more source

OPTIMIZATION OF TRANSPORTATION ROUTES IN A CLOSED LOGISTICS SYSTEM

Сучасний стан наукових досліджень та технологій в промисловості, 2019
The subject of research in the article is the network of closed logistics. The goal of the work is the creation of mathematical models and methods for solving problems of optimizing transportation routes in closed-loop logistics systems, taking into ...
Vladimir Beskorovainyi, Olexij Kuropatenko, Denys Gobov   +2 more
doaj   +1 more source