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| 1 | Arc erosion of AgSnO_2 electrical contacts at different stages of a break operation显示文摘Arc erosion studies are conducted on AgSnO2 contact materials at different stages in the break operation.A resistive load arrangement is used with up to 42 V DC at 24 A and a constant contact opening velocity.The arc current is terminated at different stages as the arc is drawn between the contacts enabling a study of the arcing phenomena up to that point.Surface profiling of the contacts is conducted to determine the extent of erosion at the different stages as the arc is drawn.Spectral analysis is also conducted on the arc and then related to the extent of erosion.The results show that particular features occur at different stages as the arc is drawn.As the arc is initially established,it goes through an 'Arc Generation' regime where the arc roots are small and immobile on both the anode and the cathode.Material transfer occurs mainly from anode to cathode.The spectral analysis indicates that Sn and O species dominate the arc followed by the Ag species.As the arc is drawn further and enters the 'Arc Degeneration' regime,the anode undergoes significantly larger erosion than the cathode.Also,both contacts indicate that multiple arc roots have formed,which are highly mobile in the later stages of the discharge.The spectral analysis indicates that Ag and N species are in high concentrations compared to other species.The mechanisms of erosion and deposition are discussed in relation to the species within the arc discharge.For the complete break operation,it is found that the anode undergoes major erosion,and it is thought that the gaseous ions species do not dominate the arc under these conditions of short arcs and voltage <42 V to cause cathode erosion. | J. Swingler A. Sumption | 2010 | Rare Metals2010，29，3： | 40 |
| 2 | Combined effects of fretting and pollutant particles on the contact resistance of the electrical connectors显示文摘Usually,when electrical connectors operate in vibration environments,fretting will be produced at the contact interfaces.In addition,serious environmental pollution particles will affect contact resistance of the connectors.The fretting will worsen the reliability of connectors with the pollutant particles.The combined effects of fretting and quartz particles on the contact resistance of the gold plating connectors are studied with a fretting test system.The results show that the frequencies have obvious effect on the contact resistance.The higher the frequency,the higher the contact resistance is.The quartz particles cause serious wear of gold plating,which make the nickel and copper layer exposed quickly to increase the contact resistance.Especially in high humidity environments,water supply certain adhesion function and make quartz particles easy to insert or cover the contact surfaces,and even cause opening resistance. | Zhigang Kong Jonathan Swingler | 2017 | Progress in Natural Science:Materials International2017，27，3： | 3 |
| 3 | Focused Wide-Band Array Processing via Spatial Resampling显示文摘 | Krolik J Swingler D N | 1990 | IEEE Trans on Aoust Speech Signal Processing1990，38，2： | 1 |
| 4 | The regulation of matrix metallopro- teinases and their inhibitors 显示文摘 | Clark IM Swingler TE Sampieri CL | 2008 | Int J Biochem Cell Biol2008，40，67： | 1 |
| 5 | Apoptotic killing of HIV- l-infected macrophage is subverted by the viral envelop glycoprotein 显示文摘 | Swingler S Mann AM Zhou J | 2007 | PLoS Pathog2007，3，9： | 1 |
| 6 | The regulation of matrix melalloproteinases and their inhibitors 显示文摘 | Clark IM Swingler TE Sampieri CL | 2008 | Int J Biochem Cell Biol2008，40，67： | 1 |
| 7 | Spatial harmonic interpolation and extrapolation for use with circular arrays显示文摘 | SWINGLER N DAVIS S | 1991 | IEEE PROCCSP''911991，，： | 1 |
| 8 | The expression and func- tion of micro RNAs in chondrogenesis and osteoarthfitis显示文摘 | Swingler TE Wheeler G Carmont V | 2012 | Arthritis Rheum2012，6，： | 1 |
| 9 | A Comparison of the Erosion and Are Characteristics of Ag/CdO and Ag/SnO2 Contact Materials Under DC Break Conditions显示文摘 | Swingler J Mcbride J W | 1995 | Proceedings of the 41st IEEE Holm Conference on Electrical Contacts1995，，： | 1 |
| 10 | The regulation of matrix metalloproteinases and their inhibitors 显示文摘 | Clark IM Swingler TE Sampieri CL | 2008 | Int J Biochem Cell Biol2008，40，67： | 1 |
| 11 | The Net Zero Mass Loss Phenomenon on Opening Switching Contacts with AC Loading 显示文摘 | McBride J W | 1999 | IEEE Trans Comp Package Manufacture Technology1999，22，1： | 1 |
| 12 | The performance of minimaxspatial resampling filters for focusing wide-band arrays显示文摘 | SWINGLER D | 1991 | IEEE Trims SP1991，39，8： | 1 |
| 13 | Electric field in polymeric cable due to space charge accumulation under DC and temperature gradient显示文摘 | CHOO W CHEN G SWINGLER S G | 2011 | IEEE Transactions on Dielectrics and Electrical Insulation2011，2，18： | 1 |
| 14 | Focused wide band array processing by spatial resampling显示文摘 | KROLIK J SWINGLER D | 1990 | IEEE Trans ASSP1990，38，2： | 1 |
| 15 | Molecular genetic analysis of the APEX nuclease gene in amyotrophic lateral sclerosis显示文摘 | Hayward C Colville S Swingler RJ | 1999 | Neurology1999，52，： | 1 |
| 16 | Superoxide dismutase mutations in an unselected cohort of Scottish amyotrophic lateral sclerosis patients 显示文摘 | Jones C T Swingler R J Simpson S A | 1995 | J Med Genet1995，32，4： | 1 |
| 17 | Electric field in poly-meric cable due to space charge accumulation under dc and tem-perature gradient 显示文摘 | CHOO W CHEN G SWINGLER S G | 2011 | IEEE Transactions on Dielectrics and E-Iectrical Insulation2011，18，2： | 1 |
| 18 | Frequency Estimation Performance of Several Weighted Burg algorithms 显示文摘 | Campbell W David N Swingler | 1993 | IEEE Transations on signal processing1993，41，3： | 1 |
| 19 | HIV-1 Nef intersects the macrophage CD40L signalling pathway to promote resting-cell infection显示文摘 | Swingler S Brichacck B Jacquc J M | 2003 | Nature2003，424，： | 1 |
| 20 | Multiple wide-band source location using steered covariance matrices显示文摘 | Krolik J Swingler D N | 1989 | IEEE Transaction on Signal Processing1989，37，10： | 1 |
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