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Online since: June 2020
Authors: Nicola Careddu, Massimo Scanu, Paolo Desogus
Notes on the Poster “Map of Natural Stones from Sardinia (Italy)”
Nicola Careddu1,a*, Massimo Scanu2,b and Paolo Desogus3,c
1Civil, Environmental Engineering and Architecture Dept.
This includes stone materials whose quarrying activity has been discontinued.
Key Engineering Materials Vol. 548 (2013), pp 173-182
Construction and Building Materials 49 (2013) 828–834
This includes stone materials whose quarrying activity has been discontinued.
Key Engineering Materials Vol. 548 (2013), pp 173-182
Construction and Building Materials 49 (2013) 828–834
Online since: October 2018
Authors: David A. Porter, Taha Mattar, Mamdouh Eissa, Mohammed Ali, Hoda El Faramawy, M.F. El-Shahat, Jukka I. Kömi
Recently, there have been increasing demands for more economical, high-performance, ultrahigh-strength steel (UHSS) with high impact toughness for use in advanced engineering applications as replacements for the highly alloyed high-cost steels such as AF-1410; Aermet-100; Hy-180 and HP9-4-20/30.
For more details about the production method, chemical compositions of the charging materials, the slag before and after ESR and the analytical techniques used, see our previous publication [6].
Other reasons for the higher strength of the ESR treated material are higher dislocation densities and precipitation strengthening.
Perkins, The Influence of Lath, Block and Prior Austenite Grain (PAG) Size on the Tensile, Creep and Fatigue Properties of Novel Maraging Steel, Materials, 10 (2017) 730
Misra, Improvement of strength-toughness combination in austempered low carbon bainitic steel: The key role of refining prior austenite grain size, J Alloys Compd. 710 (2017) 702-710
For more details about the production method, chemical compositions of the charging materials, the slag before and after ESR and the analytical techniques used, see our previous publication [6].
Other reasons for the higher strength of the ESR treated material are higher dislocation densities and precipitation strengthening.
Perkins, The Influence of Lath, Block and Prior Austenite Grain (PAG) Size on the Tensile, Creep and Fatigue Properties of Novel Maraging Steel, Materials, 10 (2017) 730
Misra, Improvement of strength-toughness combination in austempered low carbon bainitic steel: The key role of refining prior austenite grain size, J Alloys Compd. 710 (2017) 702-710
Online since: February 2026
Authors: Mohammad Fahrurrozi, Hari Purnomo, Rizkie Husti Ananda
Determination of Operating Conditions in the Synthesis of 1,3-bis(p-Hydroxyphenyl)Urea from Urea and Para-aminophenol
Rizkie Husti Ananda1,a, Moh Fahrurrozi1,b, Hari Purnomo2,c
1Chemical Engineering, Engineering Department, Universitas Gadjah Mada, Yogyakarta
2Pharmaceutical Chemistry, Pharmacy Department, Universitas Gadjah Mada, Yogyakarta
bmfahrurrozi@ugm.ac.id, chari_farmasi@ugm.ac.id
aCorresponding author: rizkiehustiananda@mail.ugm.ac.id
Keywords: Pre-reflux, 1,3 bis(p-hydroxyphenyl) urea, Synthesis reaction, Para-aminophenol
Abstract.
Introduction Indonesia’s pharmaceutical industry relies heavily on imports, with 90% of its raw materials reportedly sourced from other countries [1-4].
This development has the potential to reduce Indonesia's reliance on imported raw materials while addressing domestic demands for analgesic and antipyretic drugs.
Thermometer Condenser B Fig. 1 (A) Pre-reflux instruments and (B) reflux instruments Raw material preparation In the raw material preparation stage, urea and para-aminophenol (PAF) were weighed in molar ratios of 2:9, 2:7, and 2:5, respectively.
Therefore, optimizing these conditions is key to achieving the desired reaction outcome in large-scale production.
Introduction Indonesia’s pharmaceutical industry relies heavily on imports, with 90% of its raw materials reportedly sourced from other countries [1-4].
This development has the potential to reduce Indonesia's reliance on imported raw materials while addressing domestic demands for analgesic and antipyretic drugs.
Thermometer Condenser B Fig. 1 (A) Pre-reflux instruments and (B) reflux instruments Raw material preparation In the raw material preparation stage, urea and para-aminophenol (PAF) were weighed in molar ratios of 2:9, 2:7, and 2:5, respectively.
Therefore, optimizing these conditions is key to achieving the desired reaction outcome in large-scale production.
Online since: October 2015
Authors: Günther Schuh, Stefan Rudolf, Casimir Ortlieb, Christian Tönnes
Discovering product innovation potential within existing product architectures
Stefan Rudolf1,a, Casimir Ortlieb1,b,
Christian Tönnes1,c and Günther Schuh1,d
1Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Aachen, Germany
aS.Rudolf@wzl.rwth-aachen.de, bC.Ortlieb@wzl.rwth-aachen.de,
cC.Toennes@wzl.rwth-aachen.de and dG.Schuh@wzl.rwth-aachen.de
Keywords: Innovation management, product development, design optimization
Abstract.
Innovation ideas might arise in-house by the company’s engineers or with support from external sources.
Thus, the change of material from steel to aluminum at a design object such as a table, might have purely visual reasons, while the same change in a technical object, such as a motor, can have a complete different impact causing a redesign of both, the product and the manufacturing process.
Figure 3: Overview on covered innovation fields and unrevealed innovation potential Summary Innovative product development is the key to sustainable company growth.
Research in Engineering Design, 1998. 10: p. 189-209
Innovation ideas might arise in-house by the company’s engineers or with support from external sources.
Thus, the change of material from steel to aluminum at a design object such as a table, might have purely visual reasons, while the same change in a technical object, such as a motor, can have a complete different impact causing a redesign of both, the product and the manufacturing process.
Figure 3: Overview on covered innovation fields and unrevealed innovation potential Summary Innovative product development is the key to sustainable company growth.
Research in Engineering Design, 1998. 10: p. 189-209
Online since: June 2021
Authors: Zhi Rong He, Jun Jie Ye, Kun Gang Zhang, Yu Qing Du
Research Progress of Effect of Heat Treatment on Microstructure,
Phase Transformation Behaviors and Memory Properties
in Ti-Ni Based Shape Memory Alloys
Junjie Yea, Zhirong Heb*, Kungang Zhangc, Yuqing Dud
School of Materials Science and Engineering, Shaanxi University of Technology,
Hanzhong 723001, China
a647814191@qq.com, bhezhirong@snut.edu.cn, c1486991457@qq.com, d1139880457@qq.com
Keywords: Ti-Ni alloy, shape memory alloy, heat treatment, microstructure, phase transformation, shape memory effect
Abstract.
Heat treatment can change the microstructure of the materials.
The annealing can change metastable microstructure into stable structure, eliminate the cold working defects, and release the stored energy of cold deformation in the materials.
M Huang, Z Ding, et al, Stimulus-responsive shape memory materials: A review, Mater.
Zhou, Progress in studies on shape memory effect and its engineering applications of TiNi alloys, Trans.
Heat treatment can change the microstructure of the materials.
The annealing can change metastable microstructure into stable structure, eliminate the cold working defects, and release the stored energy of cold deformation in the materials.
M Huang, Z Ding, et al, Stimulus-responsive shape memory materials: A review, Mater.
Zhou, Progress in studies on shape memory effect and its engineering applications of TiNi alloys, Trans.
Online since: May 2011
Authors: Hong Yu Zhou, Qian Zhao, Zhen Hua Zhang, Ming Wei Tong, Zheng Hai Wang
Multi-ANN Predictive Control of Citrus Peel Supercritical Extraction Temperature
Hongyu Zhou1,a, Qian Zhao1,b, Zhenhua Zhang1,c, Mingwei Tong1,d
and Zhenghai Wang1,e
1College of Power Engineering, Chongqing University, Chongqing 400030, P.R.
Experimental procedures SFE has been used to obtain essential oils from different raw materials.
In all conditions, by using Multi-ANN it can make the valve movement relatively smooth and stable, which is the key point to control the extraction temperature stable and accurate.
Experimental procedures SFE has been used to obtain essential oils from different raw materials.
In all conditions, by using Multi-ANN it can make the valve movement relatively smooth and stable, which is the key point to control the extraction temperature stable and accurate.
Online since: May 2012
Authors: He Wang
Eco-environmental Carrying Capacity of Water in upstream of Liao River Basins, China
He Wang
Liaoning Province Key Laboratory of Basin Pollution Control
Liaoning Academy of Environmental Sciences
Shengyang 110031, China
He.wangworld@yahoo.com.cn
Keywords: ecological environmental carrying capacity of water; fuzzy comprehensive evaluation; Fushun Section of Hun River; Tieling Section of Liao River
Abstract: Eco-environmental carrying capacity of water comprehensively representing the resource and eco-environmental characteristics of water determines the carrying ability of nature ecosystem for socio-economic development.
Materials and methods Fushun section of Hun river basin.
Systems Engineering Procedia 1 (2011) 422–431 [7] Huang CF.
Materials and methods Fushun section of Hun river basin.
Systems Engineering Procedia 1 (2011) 422–431 [7] Huang CF.
Online since: February 2008
Authors: C.R. Ruivo, J.J. Costa, A.R. Figueiredo
Figueiredo2,c
1
Área Departamental de Engenharia Mecânica, Escola Superior de Tecnologia, Universidade do
Algarve, Campus da Penha, Faro, Portugal
2
ADAI - Departamento de Engenharia Mecânica, Univ. de Coimbra - Pólo II, Coimbra, Portugal
a
cruivo@ualg.pt, bjose.costa@dem.uc.pt, crui.figueiredo@dem.uc.pt
Key words: desiccant porous media, channel flow, hygroscopic matrix, numerical modelling.
Introduction When studying the coupled heat and mass transfer phenomena associated with sorption processes occurring in solid porous media, the first crucial aspect is the characterization of the desiccant material.
For simplification purposes, the wall is considered to be only a homogeneous desiccant porous material.
Lindholm: Desiccant cooling - A literature survey (D49:2000, Department of Building Services Engineering, Chalmers University of Technology, Goteborg, 2000)
Introduction When studying the coupled heat and mass transfer phenomena associated with sorption processes occurring in solid porous media, the first crucial aspect is the characterization of the desiccant material.
For simplification purposes, the wall is considered to be only a homogeneous desiccant porous material.
Lindholm: Desiccant cooling - A literature survey (D49:2000, Department of Building Services Engineering, Chalmers University of Technology, Goteborg, 2000)
Online since: July 2006
Authors: Yu Dong Huang, J.M. He
Controlled Interphase in Carbon Fiber/Epoxy Composites by Molecular
Self-assembly Method
J.M.HE1,a Y.D.HUANG
2,b
1,2
Department of Applied Chemistry, Faculty of Science, Harbin Institute of Technology, P.O.Box
410, Harbin 150001, People's Republic of China
a
E-mail:hejinmei@hit.edu.cn bE-mail:huangyd@hit.edu.cn
Key words: carbon fiber, epoxy, interface, self-assembly, thiols, composites
Abstract In this paper, a new method based on molecular self-assembly on carbon fiber surface
was proposed for the improvement of interfacial properties between fiber and epoxy matrix in a
composite system.
Introduction Advanced composites, such as carbon fiber reinforced epoxy resin, are widely used in aircraft, aerospace engineering, sporting goods and transportation industries [1].
Experimental Raw materials The resin system used in this study consisted of three components, epoxy EPO 1441-30 as the resin, acid anhydride as the curing agent, and N, N-dimethyl benzyl amine as the accelerating agent, in ratio of 100:70:1 by weight.
Introduction Advanced composites, such as carbon fiber reinforced epoxy resin, are widely used in aircraft, aerospace engineering, sporting goods and transportation industries [1].
Experimental Raw materials The resin system used in this study consisted of three components, epoxy EPO 1441-30 as the resin, acid anhydride as the curing agent, and N, N-dimethyl benzyl amine as the accelerating agent, in ratio of 100:70:1 by weight.