Results 11 to 20 of about 737,269 (351)

Process window prediction in stainless steel selective laser melting using various energy densities: laser power, scan speed, and defocusing distance

Materials Research Express, 2023
The process window of selective laser melting (SLM), a set of optimum process parameters, is crucial for producing defect-free components with excellent mechanical properties.
Sungsang Lim, Siva Prasad Murugan, Jungu Park, Haksung Lee, Ilguk Jo, Yeongdo Park   +5 more
doaj   +1 more source

A mass-loss rate determination for zeta Puppis from the quantitative analysis of X-ray emission line profiles [PDF]

, 2009
We fit every emission line in the high-resolution Chandra grating spectrum of zeta Pup with an empirical line profile model that accounts for the effects of Doppler broadening and attenuation by the bulk wind.
Asplund, Berghoefer, Bouret, Bouret, Canizares, Cash, Cassinelli, Castor, Cohen, Cohen, Cohen, D. John Hillier, David H. Cohen, Dessart, Emma E. Wollman, Eversberg, Feldmeier, Fullerton, Glebocki, Hamann, Hamann, Hillier, Hillier, Hillier, Howarth, Ignace, Janos Zsargó, Kahn, Kramer, Krtička, Lamers, Lanz, Leutenegger, Leutenegger, MacFarlane, MacFarlane, Markova, Maurice A. Leutenegger, Oskinova, Owocki, Owocki, Owocki, Pauldrach, Pauldrach, Pauldrach, Pauldrach, Perryman, Press, Prinja, Przybilla, Puls, Puls, Puls, Repolust, Richard H. D. Townsend, Runacres, Sahu, Smith, Stanley P. Owocki, Van Leeuwen, Vanbeveren, Verner, Waldron, Yamamoto, Zhekov   +64 more
core   +7 more sources

Optimization of plasma spray process variables to attain the minimum porosity and maximum hardness of the LZ/YSZ thermal barrier coatings utilizing the response surface approach

Materials Research Express, 2022
Lanthanum zirconate (LZ) has emerged as a novel thermal barrier coating (TBC) material because of its higher temperature phase stability, and low sintering ability than the current standard yttria-stabilized zirconia (YSZ).
M Mathanbabu, D Thirumalaikumarasamy, M Tamilselvi, Somasurendra kumar   +3 more
doaj   +1 more source

KONSTANTA ELASTIK PADA POROSITAS HIDROKARBON BATUGAMPING DENGAN KONVERSI DINAMIK KE STATIK

Rekayasa, 2014
Pengukuran dinamik untuk mendapatkan konstanta elastik dihubungkan dengan besaran petrofisika utamanya porositas dan saturasi air sangat penting untuk penerapan penyebaran adanya reservoar.
Mochammad Ahied
doaj   +1 more source

MOLDING PROCEDURE FOR PERVIOUS CONCRETE SPECIMENS BY DENSITY CONTROL

Case Studies in Construction Materials, 2021
Pervious concrete (PC) is a special concrete with the main objective of surface runoff management, due to its hydraulic performance and infiltration capacity. Currently, the standards and guidelines (existing) do not adequately standardize the production
Kathleen Dall Bello De Souza Risson, Gersson F.B. Sandoval, Francieli S. Cofani Pinto, Marcos Camargo, André Campos De Moura, Berenice Martins Toralles   +5 more
doaj   +1 more source

Modelling urban floods using a finite element staggered scheme with porosity and anisotropic resistance [PDF]

, 2018
Artificial porosity models for urban flooding use porosity as a statistical descriptor for the presence of buildings, which are then treated as subgridscale features. Computational efficiency makes porosity models attractive for large-scale applications.
Viero, Daniele P.
core   +1 more source

Removal of Decontaminating Agent from Aqueous Solution Using Microporous and Mesoporous Materials: Activated Carbon as an Effective Adsorbent

Adsorption Science & Technology, 2008
Wastewater from nuclear plants contains oxalic acid, a chelating compound used to remove surface activity. This forms complexes with radioactive cations, thereby impeding their removal by conventional techniques. In this study, oxalic acid was removed by
Narasimhan Gokulakrishnan, Arumugam Pandurangan, Pradeep Kumar Sinha   +2 more
doaj   +1 more source

Influence of activators on constitutes of diffusion layer at boronizing pressed samples from iron powder [PDF]

Hemijska Industrija, 2008
In this paper, results of experimental investigation which contributes to study of quantitative changes of porosity during chemical-thermical process, apropos boronizing of pressed samples from iron powder, with variation of boronizing mixture ...
Požega Emina D., Ivanov Svetlana Lj.
doaj   +1 more source

Some Things are not held together by Glue: Chunambo and other ‘Sticky Matter’ in Subtropical Macao, China

eTropic: electronic journal of studies in the tropics, 2022
This article uses adhesives or what I am calling here ‘sticky matter,’ to illustrate multispecies relationships in Macao, a subtropical coastal region in South China. It focuses primarily on a traditional rammed earth material known as chunambo in Macao
Benjamin Kidder Hodges
doaj   +1 more source

A study of the porosity of nuclear graphite using small-angle neutron scattering [PDF]

, 2013
Small angle neutron scattering (SANS) measures porosity in nuclear graphites, including both open pores, caused by escaping decomposition gases, and internal cracks (in coke particles) generated by anisotropic thermal contraction along the c-direction ...
Bale, D.K. Ross, Hacker, Heenan, Heggie, Hoinkis, Hoinkis, Ibel, Latham, Mandelbrot, Martin, Martin, Martin, Martin, S.M. King, Wen, Winter, Z. Mileeva   +17 more
core   +1 more source