Results 81 to 90 of about 2,780,262 (358)

Influence of Heat Treatment on Microstructure and Mechanical Properties at Elevated Temperatures of Nonweldable Ni‐Based Alloy Printed by Fused Filament Fabrication

Advanced Engineering Materials, EarlyView.
The fused filament‐fabricated MAR‐M247 alloy without hot isostatic pressing shows the lowest porosity of 4%. Heat treatment at 1220 °C produces coarse precipitates and carbides. Specimens heat‐treated at 1220 °C exhibit higher tensile strength (683 MPa) and elongation (10%) at room temperature.
Haneen Daoud, Ying Zheng, Agata Kulig, Natalja Agarkov, Esma Mese, Wolfgang Hofmann, Peter Würtele, Uwe Glatzel   +7 more
wiley   +1 more source

Farm gate profitability of organic and conventional farming systems in the tropics

International Journal of Agricultural Sustainability
Systematic studies on the economic competitiveness of organic farming systems compared to conventional farming systems are particularly lacking in tropical environments.
Amritbir Riar, Eva Goldmann, David Bautze, Johanna Rüegg, Gurbir S. Bhullar, Noah Adamtey, Monika Schneider, Beate Huber, Laura Armengot   +8 more
doaj   +1 more source

A Simulative Evaluation of Triply Periodic Minimal Surface Structures in the Context of Elastocaloric Applications

Advanced Engineering Materials, EarlyView.
A simulative evaluation of triply periodic minimal surface (TPMS) structures for an elastocaloric application under compressive load is performed. For the evaluation of the structure's performance, surface/volume ratio, generated heat and invested mechanical work are taken into account and are compared to a tube as a reference specimen.
Michael Fries, Paul Motzki, Dirk Bähre, Anne Jung   +3 more
wiley   +1 more source

Conversion to Organic Field Vegetable Production (Phase 2) [PDF]

, 2004
Introduction, aims and objectives When this project began in 1996 the UK supply of organic vegetables, from 2400 hectares, was insufficient to meet the growing market and the majority of organic vegetables were imported.
Sumption, Phil
core  

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

Advanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler, Martina Dienstleder, Judith Lammer, Moritz Theissing, Daniel Knez   +4 more
wiley   +1 more source

CONVERSION OF A LAMB PRODUCTION SYSTEM TO ORGANIC FARMING: HOW TO MANAGE, FOR WHICH RESULTS? [PDF]

, 2005
Two sheep flocks were managed organically (for two years from conversion onwards) under different lambing strategies (1 lambing/year vs. 3 lambings every two years).
Hervé, Tournadre, Jacques, Cabaret, Jean-Pierre, Dulphy, Marc, Benoit, Sophie, Prache   +4 more
core  

Impact of Various Rotary Friction Welding Process Parameters on the Mechanical Properties of a Steel–Aluminum Joint

Advanced Engineering Materials, EarlyView.
Rotary friction welding of steel E355 and the aluminum alloy EN AW‐6082 can lead to the formation of brittle intermetallic phases. The primary process parameters are varied in order to determine their influence on this intermetallic phase formation and the resulting mechanical properties.
Laura Huber, Phillipp Schultheiß, Michael Thiele, Christoph Rößler, Heinz Werner Höppel   +4 more
wiley   +1 more source

THE ECONOMIC IMPACTS OF LOCAL AND CONVENTIONAL FOOD SALES

Journal of Agricultural and Applied Economics, 2017
Local food systems are frequently touted as economic development strategies for rural communities. In this study, we estimated the local economic impacts of local compared with conventionally produced and marketed food in two regions of Missouri and one ...
J. Rossi, T. Johnson, M. Hendrickson
semanticscholar   +1 more source

Additive Processing of Ti‐17 by Wire Arc Directed Energy Deposition: An Investigation of the Microstructure and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study focuses on processing the titanium alloy Ti‐17 using wire arc directed energy deposition (waDED), with an emphasis on the microstructure and mechanical properties. The waDED typical heat‐affected zone banding is characterized and related to the local mechanical properties.
Alexander Wenda, Thomas Klein, Florian Fahrnberger, Marcel Czipin, Karin Hartl, Clemens Simson, Martin Stockinger, Herbert Hutter   +7 more
wiley   +1 more source

Techno-Economic Feasibility Assessment of Grid-Connected PV Systems for Residential Buildings in Saudi Arabia—A Case Study

Sustainability, 2019
This paper presents a techno-economic feasibility evaluation for a grid-connected photovoltaic energy conversion system on the rooftop of a typical residential building in Jeddah, one of the major cities in Saudi Arabia.
Amir A. Imam, Y. Al-Turki, Sreerama Kumar R.   +2 more
semanticscholar   +1 more source