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Thermo-mechanical analysis of linear welding stage in friction stir welding Influence of Welding Parameters

Autor: I Bojan Medjo, S Aleksandar Sedmak, M Darko Veljic, R Mihailo Mrdak, A Nenad Radovic, R Darko Bajic, P Marko Rakin

Publikováno v: Thermal Science

The influence of friction stir welding parameters on thermo-mechanical behavior of the material during welding is analyzed. An aluminum alloy is considered (Al 2024 T351), and different rotating and welding speeds are applied. The finite element mode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c3a92eb058ddbbd2d4519e1535f6d4e
http://TechnoRep.tmf.bg.ac.rs/bitstream/id/12642/bitstream_12642.pdf

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Small area variations and factors associated with blood pressure and body mass index in adult women in Accra, Ghana: Bayesian spatial analysis of a representative population survey and census data

Autor: Raphael E. Arku, Richard Adanu, Ayaga A. Bawah, Allan G. Hill, Rosemary B. Duda, Sierra N. Clark, Günther Fink, R. Darko, Richard B. Biritwum, James E. Bennett, Majid Ezzati

Publikováno v: PLoS Medicine, Vol 18, Iss 11, p e1003850 (2021)
PLoS Medicine
PLoS Medicine, Vol 18, Iss 11 (2021)

Background Body-mass index (BMI) and blood pressure (BP) levels are rising in sub-Saharan African cities, particularly among women. However, there is very limited information on how much they vary within cities, which could inform targeted and equita

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8eb84dbac590ef0323bdcc09a37c8a07
https://eprints.soton.ac.uk/452299/

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Akademický článek

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Complete excision of a large pancreatic neuroendocrine neoplasm

Autor: R. Darko, Frank Edwin, Jehoram Anim

Publikováno v: The Pan African Medical Journal

Pancreatic neuroendocrine tumours localized to the pancreas and amenable to complete surgical resection are rarely reported. In West Africa, such patients present too late for surgery to be considered. In the reported case, a patient with persistent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5109edda6007c3f888a9a0fc6cdd1769
http://europepmc.org/articles/PMC6691318

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Akademický článek

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The influence of electric ARC activation on the speed of heating and the structure of metal in welds

Autor: M Mychailo Savytsky, R Darko Bajic, M Yuriy Shkrabalyuk, M Oleksandr Savytsky, T. Vuherer

Publikováno v: Thermal Science, Vol 20, Iss 1, Pp 239-246 (2016)

This paper presents the results of a research related to the impact of electric arc activation onto drive welding energy and metal weld heating speed. It is con- firmed that activated tungsten inert gas welding and activated metal inert gas welding m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8098713ef9e098fe5396590cdc216928
https://doi.org/10.2298/tsci140530125s

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Anisotropy analysis of turbulent swirl flow

Autor: R Darko Radenkovic, M Jela Burazer, M Djordje Novkovic

Publikováno v: FME Transactions, Vol 42, Iss 1, Pp 19-25 (2014)
FME Transactions (2014) 42(1):19-25

Anisotropy invariant map proposed by Lumley and Newman and barycentric map proposed by Banerjee et al. were used in order to estimate the degree of anisotropy in turbulent swirl flow. The differences in visual interpretations of anisotropy states in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46a9d2359571cb588664d40479ef4484
https://doi.org/10.5937/fmet1401019r

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Experimental and numerical thermo-mechanical analysis of friction stir welding of high-strength alluminium alloy

Autor: K Vencislav Grabulov, S Aleksandar Sedmak, I Bojan Medjo, S Nikola Bajic, P Marko Rakin, M Darko Veljic, R Darko Bajic

Publikováno v: Thermal Science, Vol 18, Iss suppl.1, Pp 29-38 (2014)
Thermal Science

This paper presents experimental and numerical analysis of the change of temperature and force in the vertical direction during the friction stir welding of high-strength aluminium alloy 2024 T3. This procedure confirmed the correctness of the numeri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6518ae29d46443cc12aaa735432950a0
http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300171V.pdf

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Flow simulations in a small bulb turbine using two-equation turbulence models

Autor: M Djordje Novkovic, R Darko Radenkovic, M Jela Burazer, R Milan Lecic

Publikováno v: FME Transactions, Vol 42, Iss 2, Pp 118-127 (2014)
FME Transactions (2014) 42(2):118-127

Numerical flow simulations in a small bulb turbine by the use of Ansys CFX software were performed in this paper. Simulations were performed for three different RANS-based models: k-e , k-ω and SST. For each of these models, seven different operatin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd3600d953b1d5021afc236bad483de6
https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2014/1451-20921402118N.pdf

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The Health of the 'Older Women' in Accra, Ghana: Results of the Women’s Health Study of Accra

Autor: Rosemary B. Duda, Joseph D. Seffah, John K. Anarfi, Allan G. Hill, R. Darko, Richard Adanu

Publikováno v: Journal of Cross-Cultural Gerontology. 26:299-314

The health of women residing in the developing countries is not limited to reproductive health conditions or infectious diseases. While these illnesses remain serious threats to a healthy life, as the population ages, the prevalence of illnesses cons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a37165537d359be7adef11d4b9b13fb6
https://doi.org/10.1007/s10823-011-9148-8

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