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27篇 您的检索式:作者名="Neacsu"
    题名 作者 年代 出处 被引量
1Simultaneous thermal and contraction/expansion curves analysis for solidification control of cast irons显示文摘The first part of the paper summarizes the performance of two mould devices,illustrating by representative shrinkage tendency results in ductile cast iron as affected by mould rigidity(green and furan resin sand moulds)and inoculant type(FeSi-based alloys).Less rigid green sand moulds encourage the formation of contraction defects,not only because of the high initial expansion values(ε(di))(max),but also because of the increased solidification undercooling.A high inoculation efficiency means not only lowering the carbides formation sensitivity and increasing the nodule count,but also a prolonged graphitization through to the end of the eutectic freezing,as observed by the high population of small late forming nodules,which leads to minimizing the tendency for shrinkage.The second part of the paper illustrates an application of this equipment to commercial foundry use.It conducts thermal analysis and volume change measurements in a single ceramic cup with cast iron quality as a variable.La-bearing FeSi inoculant appears to be more effective than RE(Rare Earth)-FeSi alloy in FeSiMgCa treated irons(no RE),in terms of reducing eutectic undercooling and(ε(di))(max),favourable for lower sensitivity to shrinkage formation.Experiments also compared solidification patterns for white[WI],grey[GI]and ductile[DI]irons,to correlate the most important events between the cooling curves and contraction curves,to evaluate the sensitivity to shrinkage formation.All of the irons have similar values for initial expansion up to the start of eutectic freezing,but,after that,the graphite formation promotes expansion(more than 5 times for nodular graphite),resulting in a difference in maximum expansion(2 times higher for DI).The graphitic expansion has two contrary effects.Increased graphitic expansion(force)leads to a higher shrinkage sensitivity during the first part of the eutectic reaction,but also to a decrease of shrinkage at the end of solidification,due to forcing the last liquid iron to occupy the previous formed cavities.Consequently,strong graphitization process promotion at the end of solidification favours the castings'soundness.Iulian Riposan Stelian Stan Mihai Chisamera Loredana Neacsu Ana Maria Cojocaru Eduard Stefan Iuliana Stan 2020China Foundry2020,17,2:2
2Recovery of Metals from Anodic Dissolution Slime of Waste from Electric and Electronic Equipment(WEEE) by Extraction in Ionic Liquids显示文摘Ana Maria POPESCU Kazimir YANUSHKEVICH Vasile SOARE Cristina DONATH Elena Ionela NEACSU Virgil CONSTANTIN 2018Chemical Research in Chinese Universities2018,34,1:1
3Therapeutic safety of high myocardial ex- pression levels of the molecular inotrope S100A1 in a preclinical heart failure model显示文摘Weber C Neacsu I Krautz B 2014Gene Ther2014,21,2:1
4Can rate of brain atro phy in multiple sclerosis be explained by clinical and MRI charac- teristics? 显示文摘Korteweg T Rovaris M Neacsu V 2009Mult Scler2009,15,4:1
5Adaptive SVM to compensate DC-Link voltage ripple for four-switch three- phase voltage-source inverters显示文摘Frede B Neacsu D John K P 1999IEEE Transactions on Power Electronics1999,14,4:1
6assessment of P16 protein and of L1 capsid protein of human papilloma virus in cervical squamous intraepithelial lesions 显示文摘Craueiuc E Balan R Neacsu D 2012Genet Mole Biol2012,13,2:1
7Comparative analysis of torque-controlled IM drives with applications in electric and hybrid vehicles显示文摘NEACSU D O RAJASHEKARA K 2001IEEE Transactions on Power Electronics2001,16,2:1
8IGF-I attenuates FFA- induced activation of JNK1 phosphorylation and TNFa expression in human subcutaneous preadipocytes显示文摘Neacsu O Cleveland K Xu H 2013Obesity(Silver Spring)2013,21,9:1
9Insulin acts as a powerful stimulator of axial myopia in chicks显示文摘Feldkaemper MP Neacsu I Schaeffel F 0,,01:1
10Surface analysis and corrosion resistance of a new titanium base alloy in simulated body fluids显示文摘C. Vasilescu S.I. Drob E.I. Neacsu J.C. Mirza Rosca 2012Corrosion Science2012,,:1
11Insulin acts as a powerful stimulator of axial myopia in chicks显示文摘Feldkaemper MP Neacsu I Schaeffel F 2009Invest Ophthalmol Vis Sci2009,50,:1
12Preparation of BaTi4O9 from oxalates 显示文摘Cemea M Chirtop E Neacsu D 2002J Am Ceram Soc2002,85,2:1
13Adaptive SVM to compensate DC-link voltage ripple for four-switch three-phase voltage-source inverters 显示文摘Blaabjerg F Neacsu D O Pedersen J K 1999IEEE Transac- tions on Power Electronics1999,14,4:1
14Grating-coupling of surface plasmons onto metallic tips: A nanocontlned light source显示文摘Ropers C Neacsu C C Elsaesser T 2007Nano Lett2007,7,:1
15Vectorial current control techniques for three-phase AC/DC boost converters 显示文摘Neacsu D O 1999IEEE International Symposium on Industrial Electronics1999,,2:1
16Adaptive SVM to compensate DC-link voltage ripple for tour-switch three-phase voltage-source inverters显示文摘Blaabjerg F Neacsu D O Pedersen J K 1999IEEE Transactions on Power Electronics1999,14,4:1
17Abdominal wall endometriosis after gynecologic procedures: an under - appreciated diagnosis in general surgery显示文摘Vintila D Neacsu CN Popa P 2008Rev Med Chir Soc Med Nat Iasi2008,112,2:1
18Adaptive SVM to compensate DC-link voltage ripple for four-switch three-phase voltage-source inverters显示文摘 Neacsu D O Pedersen J K 1999IEEE Transactions on Power Electronics1999,14,4:1
19Etiopathogenic mechanisms in glaucoma显示文摘Neacsu AM 2006Oftalmologia2006,50,:1
20Receptors involved in the mechanism of action of topical prostaglandines 显示文摘Neacsu A M 2009Oftalmologia2009,53,2:1
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