Results 71 to 80 of about 1,062,869 (306)

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Abundances and search for vertical stratification in the atmospheres of four HgMn stars

, 2010
Using high resolution, high-S/N archival UVES spectra, we have performed a detailed spectroscopic analysis of 4 chemically peculiar HgMn stars (HD 71066, HD 175640, HD 178065 and HD 221507). Using spectrum synthesis, mean photospheric chemical abundances
Abt, Adelman, Adelman, Alecian, Aller, Babel, Balona, Castelli, Cowley, Dolk, Dubaj, F. LeBlanc, G. A. Wade, Gerbaldi, Grevesse, Hauschildt, Heacox, Holt, Hubrig, Hubrig, Hubrig, Hui-Bon-Hoa, Jomaron, Khalack, Khalack, Khan, Kochukhov, Kupka, Kurucz, Kurucz, Landstreet, Landstreet, Landstreet, Lanz, M. Thiam, Martin, Martin, Mathys, Michaud, Pickering, Preston, Ryabchikova, Ryabchikova, Ryabchikova, Ryabchikova, Savanov, Schaller, Shorlin, Sigut, Sigut, Smith, Smith, Smith, Smith, Takada-Hidai, V. Khalack, Wade, Wade, Wade, Wahlgren, White   +60 more
core   +1 more source

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay, Zhengqing Wei, Nebahat Bulut, Sibylle Gemming   +3 more
wiley   +1 more source

Evaluasi Model Jaringan Syaraf Tiruan Metode Backpropagation Untuk Prediksi Iklim Ekstrim Dengan Korelasi Curah Hujan Dan Tinggi Muka Laut Di Semarang [PDF]

, 2015
Global warming is an event average temperature rise of the atmosphere, ocean, and land. Atmosphere temperature changes cause the physical conditions of the atmosphere becomes unstable, causing anomalies weather parameters that cause climate change.
Gernowo, R. (Rahmat), Pangestu, S. Y. (Siti)   +1 more
core  

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Corrosion resistance of a steel under an oxidizing atmosphere in a fluid catalytic cracking regenerator

Materials Research, 2004
In the present work, the corrosion resistance of an ASTM A 387 G11 steel was evaluated under two conditions: an oxidizing atmosphere in a fluid catalytic cracking regenerator of a petroleum processing unit and a simulated atmosphere in the laboratory, at
Ieda Caminha, Chaoliu Zeng, Marcelo Piza Paes, Maurício Jesus Monteiro, Fernando Rizzo   +4 more
doaj   +1 more source

Monitoring, analyzing, and modeling global climate [PDF]

Diabatic heating rate estimates as residuals of the dry thermodynamic equation were generated for May 1, 1985 to December 1989 in pentad resolution. Published results show moderate correlations (approx.
Christy, John R.
core   +1 more source

High‐Temperature Oxidation of the CrFeNi Medium‐Entropy Alloy

Advanced Engineering Materials, EarlyView.
The oxidation behavior of equiatomic CrFeNi MEA is a key issue that determines this material's suitability for high‐temperature application. The understanding of long‐term behavior is even more crucial than short‐term corrosion effects. The alloy is exposed to synthetic air at 1000, 1050, and 1100 °C for 24, 100, and 1000 h and systematically compared ...
Anna Maria Manzoni, Wencke Mohring, Mike Schneider, Guillaume Laplanche, Sebastian Peter Hagen, Christiane Stephan‐Scherb   +5 more
wiley   +1 more source

QUALITY ASSESSMENT OF EGGS PACKED UNDER MODIFIED ATMOSPHERE

Ciência e Agrotecnologia, 2015
Eggs are perishable foods and lose quality quickly if not stored properly. From the moment of posture to the marketing of egg, quality loss occurs through gas exchange and water through the pores of the shell with the external environment and thus ...
Aline Giampietro-Ganeco, Hirasilva Borba, Aline Mary Scatolini-Silva, Marcel Manente Boiago, Pedro Alves de Souza, Juliana Lolli Malagoli de Mello   +5 more
doaj   +1 more source

Improving The Students’ Speaking Skills Through Humanistic Strategies in ECC Of UNUSA [PDF]

, 2017
This study focuses on the humanistic strategies applied in the English speaking class activities. Researcher conducted a study on participants of English Chat Club (ECC) which is provided in Nahdlatul Ulama University of Surabaya as 30 students.
Saputri, Tiyas
core   +1 more source