TY - JOUR AU - Buijnsters, J.G. AU - Gago, R. AU - Jimenez, I. AU - Camero, M. AU - Agullo-Rueda, F. AU - Gomez-Aleixandre, C. PY - 2009 UR - https://hdl.handle.net/2066/75172 TI - Hydrogen quantification in hydrogenated amorphous carbon films by infrared, Raman, and x-ray absorption near edge spectroscopies SN - 0021-8979 IS - iss. 9 SP - 093510 JF - Journal of Applied Physics VL - vol. 105 PS - 7 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/75172/75172.pdf?sequence=1 ER - TY - JOUR AU - Dreumel, G.W.G. van AU - Buijnsters, J.G. AU - Bohnen, T. AU - Meulen, J.J. ter AU - Hageman, P.R. AU - Enckevort, W.J.P. van AU - Vlieg, E. PY - 2009 UR - https://hdl.handle.net/2066/75292 TI - Growth of GaN on nano-crystalline diamond substrates EP - 1047 SN - 0925-9635 IS - iss. 5-8 SP - 1043 JF - Diamond and Related Materials VL - vol. 18 PS - 5 p. DO - http://dx.doi.org/10.1016/j.diamond.2009.01.027 ER - TY - JOUR AU - Gowri, M. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Celis, J.P. AU - Meulen, J.J. ter AU - Buijnsters, J.G. PY - 2009 UR - https://hdl.handle.net/2066/75296 TI - Growth and adhesion of hot filament chemical vapor deposited diamond coatings on surface modified high speed steel EP - 1458 SN - 0925-9635 IS - iss. 12 SP - 1450 JF - Diamond and Related Materials VL - vol. 18 PS - 9 p. DO - http://dx.doi.org/10.1016/j.diamond.2009.09.013 ER - TY - JOUR AU - Vazquez, L. AU - Buijnsters, J.G. PY - 2009 UR - https://hdl.handle.net/2066/75298 TI - Chemical and physical sputtering effects on the surface morphology of carbon films grown by plasma chemical vapor deposition SN - 0021-8979 IS - iss. 3 SP - 033504 JF - Journal of Applied Physics VL - vol. 106 PS - 8 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/75298/75298.pdf?sequence=1 ER - TY - JOUR AU - Bohnen, T. AU - Jong, A.E.F. de AU - Enckevort, W.J.P. van AU - Weyher, J. AU - Dreumel, G.W.G. van AU - Ashraf, H. AU - Hageman, P.R. AU - Vlieg, E. PY - 2009 UR - https://hdl.handle.net/2066/75497 TI - On the nucleation, coalescence, and overgrowth of HVPE GaN on misoriented sapphire substrates and the origin of pinholes EP - 4691 SN - 0022-0248 IS - iss. 23-24 SP - 4685 JF - Journal of Crystal Growth VL - vol. 311 PS - 7 p. DO - http://dx.doi.org/10.1016/j.jcrysgro.2009.07.045 ER - TY - JOUR AU - Buijnsters, J.G. AU - Vazquez, L. AU - Meulen, J.J. ter PY - 2009 UR - https://hdl.handle.net/2066/75817 TI - Substrate pre-treatment by ultrasonication with diamond powder mixtures for nucleation enhancement in diamond film growth EP - 1246 SN - 0925-9635 IS - iss. 10 SP - 1239 JF - Diamond and Related Materials VL - vol. 18 PS - 8 p. DO - http://dx.doi.org/10.1016/j.diamond.2009.04.007 ER - TY - JOUR AU - Bohnen, T. AU - Yazdi, G.R. AU - Yakimova, R. AU - Dreumel, G.W.G. van AU - Hageman, P.R. AU - Vlieg, E. AU - Algra, R.E. AU - Verheijen, M.A. AU - Edgar, J.H. PY - 2009 UR - https://hdl.handle.net/2066/75904 TI - ScAIN nanowires: A cathodoluminescence study EP - 3151 SN - 0022-0248 IS - iss. 11 SP - 3147 JF - Journal of Crystal Growth VL - vol. 311 PS - 5 p. DO - http://dx.doi.org/10.1016/j.jcrysgro.2009.03.023 ER - TY - JOUR AU - Frederix, P.W.J.M. AU - Yang, C.H. AU - Groenenboom, G.C. AU - Parker, D.H. AU - Alnama, K. AU - Western, C.M. AU - Orr-Ewing, A.J. PY - 2009 UR - https://hdl.handle.net/2066/75990 TI - Photodissociation Imaging of Diatomic Sulfur (S2) EP - 15005 SN - 1089-5639 IS - iss. 52 SP - 14995 JF - The Journal of Physical Chemistry A VL - vol. 113 PS - 11 p. DO - http://dx.doi.org/10.1021/jp905104u ER - TY - JOUR AU - Rose, R.A. AU - Orr-Ewing, A.J. AU - Yang, C.H. AU - Vidma, K.V. AU - Groenenboom, G.C. AU - Parker, D.H. PY - 2009 UR - https://hdl.handle.net/2066/75991 TI - Photodissociation dynamics of the A (2)Sigma(+) state of SH and SD radicals SN - 0021-9606 IS - iss. 3 SP - 034307 JF - Journal of Chemical Physics VL - vol. 130 PS - 15 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/75991/75991.pdf?sequence=1 ER - TY - JOUR AU - Bohnen, T. AU - Yazdi, G.R. AU - Yakimova, R. AU - Dreumel, G.W.G. van AU - Hageman, P.R. AU - Vlieg, E. AU - Algra, R.E. AU - Verheijen, M.A. AU - Edgar, J.H. PY - 2009 UR - https://hdl.handle.net/2066/112520 TI - ScAlN nanowires: A cathodoluminescence study EP - 3151 SN - 0022-0248 IS - iss. 11 SP - 3147 JF - Journal of Crystal Growth VL - vol. 311 DO - https://doi.org/10.1016/j.jcrysgro.2009.03.023 ER - TY - JOUR AU - Bohnen, T. AU - Dreumel, G.W.G. van AU - Hageman, P.R. AU - Algra, R.E. AU - Enckevort, W.J.P. van AU - Vlieg, E. AU - Verheijen, M.A. AU - Edgar, J.H. PY - 2009 UR - https://hdl.handle.net/2066/75288 TI - Growth of scandium aluminum nitride nanowires on scn(111) films on 6h-sic substrates by HVPE EP - 2815 SN - 1862-6300 IS - iss. 12 SP - 2809 JF - Physica Status Solidi A: Applications and Materials Science VL - vol. 206 PS - 7 p. DO - https://doi.org/10.1002/pssa.200925060 ER - TY - JOUR AU - Radenovic, Dragana AU - Roij, A.J.A. van AU - Wu, S.M. AU - Meulen, J.J. ter AU - Parker, D.H. AU - Loo, M.P.J. van der AU - Groenenboom, G.C. PY - 2009 UR - https://hdl.handle.net/2066/76013 TI - Predissociation of the A(2)Sigma(+) (v '=3) state of the OH radical EP - 4760 SN - 1463-9076 IS - iss. 23 SP - 4754 JF - PCCP Physical Chemistry Chemical Physics VL - vol. 11 PS - 7 p. DO - https://doi.org/10.1039/b900249a ER - TY - JOUR AU - Klein-Douwel, R.J.H. AU - Donkerbroek, A.J. AU - Vliet, A.P. van AU - Boot, M.D. AU - Somers, L.M.T. AU - Baert, R.S.G. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2009 UR - https://hdl.handle.net/2066/72758 TI - Soot and chemiluminescence in diesel combustions of bio-derived, oxygenated and reference fuels EP - 17 SN - 1540-7489 SP - 1 JF - Proceedings of the Combustion Institute VL - vol. 32 DO - https://doi.org/10.1016/j.proci.2008.07.044 ER - TY - JOUR AU - Klein-Douwel, R.J.H. AU - Frijters, P.J.M. AU - Seykens, X.L.J. AU - Somers, L.M.T. AU - Baert, R.S.G. PY - 2009 UR - https://hdl.handle.net/2066/75364 TI - Gas density and rail pressure effects on diesel spray growth from a heavy-duty common rail injector EP - 1842 SN - 0887-0624 IS - iss. 4 SP - 1832 JF - Energy & Fuels VL - vol. 23 PS - 11 p. DO - https://doi.org/10.1021/ef8003569 ER - TY - JOUR AU - Boot, M.D. AU - Frijters, P.J.M. AU - Luijten, C.C.M. AU - Somers, L.M.T. AU - Baert, R.S.G. AU - Donkerbroek, A.J. AU - Klein-Douwel, R.J.H. AU - Dam, N.J. PY - 2009 UR - https://hdl.handle.net/2066/75427 TI - Cyclic oxygenates: A new class of second generation biofuels for diesel engines? EP - 1817 SN - 0887-0624 IS - iss. 4 SP - 1808 JF - Energy & Fuels VL - vol. 23 PS - 10 p. DO - https://doi.org/10.1021/ef8003637 ER - TY - JOUR AU - Klein-Douwel, R.J.H. AU - Donkerbroek, A.J. AU - Vliet, A.P. van AU - Boot, M.D. AU - Somers, L.M.T. AU - Baert, R.S.G. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2009 UR - https://hdl.handle.net/2066/75850 TI - Soot and chemiluminescence in diesel combustion of bio-derived, oxygenated and reference fuels EP - 2825 SN - 1540-7489 IS - iss. 2 SP - 2817 JF - Proceedings of the Combustion Institute VL - vol. 32 PS - 9 p. DO - https://doi.org/10.1016/j.proci.2008.06.140 ER - TY - JOUR AU - Bominaar, J. AU - Pashtrapanska, M. AU - Elenbaas, T. AU - Dam, N.J. AU - Meulen, J.J. ter AU - Water, W. van de PY - 2008 UR - https://hdl.handle.net/2066/72330 TI - Writing in turbulent air EP - 04632-12 SN - 1539-3755 IS - iss. 4 SP - 046312-1 JF - Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics VL - vol. 77 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/72330/72330.pdf?sequence=1 ER - TY - JOUR AU - Buijnsters, J.G. AU - Camero, M. AU - Gago, R. AU - Landa-Canovas, A.R. AU - Gomez-Aleixandre, C. AU - Jimenez, I. PY - 2008 UR - https://hdl.handle.net/2066/72176 TI - Direct spectroscopic evidence of self-formed C_60 inclusions in fullerenelike hydrogenated carbon films EP - 141920-3 SN - 0003-6951 SP - 141920-1 JF - Applied Physics Letters VL - vol. 92 PS - 3 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/72176/72176.pdf?sequence=1 ER - TY - JOUR AU - Ashraf, H. AU - Weyher, J.L. AU - Dreumel, G.W.G. van AU - Gzregorzyck, A. AU - Hageman, P.R. PY - 2008 UR - https://hdl.handle.net/2066/72442 TI - Thick GaN layers grown by HVPE: Influence of the templates EP - 3963 SN - 0022-0248 IS - iss. 17 SP - 3957 JF - Journal of Crystal Growth VL - vol. 310 PS - 7 p. DO - http://dx.doi.org/10.1016/j.jcrysgro.2008.06.031 ER - TY - JOUR AU - Buijnsters, J.G. AU - Vazquez, L. PY - 2008 UR - https://hdl.handle.net/2066/72543 TI - Surface morphology atabilization by chemical sputtering in carbon nitride film growth EP - 012011 SN - 0022-3727 SP - 012006 JF - Journal of Physics D: Applied Physics VL - vol. 41 PS - 5 p. ER - TY - JOUR AU - Bominaar, J. PY - 2008 UR - https://hdl.handle.net/2066/72736 TI - Moleculen bombarderen met lasers EP - 10 IS - iss. 52 SP - 10 JF - B4u Magazine VL - vol. 12 PS - 1 p. ER - TY - THES AU - Manickam, G. PY - 2008 UR - https://hdl.handle.net/2066/53731 PB - Nijmegen : [S.n.] TI - Deposition of diamond films on steel substrates for tribiological applications N1 - the Netherlands, Applied Molecular Physics, 22 september 2008 N1 - Promotor : Meulen, J.J. ter Co-promotores : Schermer, J.J., Enckevort, W.J.P. van, Vlieg, E., Celis, J.P., Buijnsters, J.G. PS - 161 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/53731/53731_depoofdif.pdf?sequence=1 ER - TY - THES AU - Bominaar, J. PY - 2008 SN - 9789090232379 UR - https://hdl.handle.net/2066/66032 PB - Nijmegen : Radboud University TI - Air photolysis and recombination tracking N1 - Radboud Universiteit Nijmegen, 9 september 2008 N1 - Promotor : Meulen, J.J. ter PS - 168 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/66032/66032.pdf?sequence=1 ER - TY - CHAP AU - Bougie, B. PY - 2008 UR - https://hdl.handle.net/2066/72222 PB - [S.l.] : Quest/ G+J Publishing TI - In een draaiende motor kijken SN - 9789089270122 SP - 177 CT - Experiment NL ER - TY - JOUR AU - Radenovic, Dragana AU - Roij, A.J.A. van AU - Wu, S.M. AU - Meulen, J.J. ter AU - Parker, D.H. AU - Loo, M.P.J. van der AU - Janssen, L.M.C. AU - Groenenboom, G.C. PY - 2008 UR - https://hdl.handle.net/2066/71915 TI - Photodissociation of vibrationally excited OH/OD radicals EP - 572 SN - 0026-8976 IS - iss. 2-4 SP - 557 JF - Molecular Physics VL - vol. 106 PS - 6 p. DO - https://doi.org/10.1080/00268970801922783 ER - TY - JOUR AU - Klein-Douwel, R.J.H. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2008 UR - https://hdl.handle.net/2066/72090 TI - Laser-induced fluorescence of NCN in low and atmospheric pressure flames EP - 2622 SN - 0146-9592 SP - 2620 JF - Optics Letters VL - vol. 33 PS - 3 p. DO - https://doi.org/10.1364/OL.33.002620 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/72090/72090.pdf?sequence=1 ER - TY - JOUR AU - Bominaar, J. AU - Schoemaecker, C. AU - Dam, N. AU - Meulen, J.J. ter AU - Groenenboom, G.C. PY - 2007 UR - https://hdl.handle.net/2066/34515 AB - The REMPI spectrum of molecular nitrogen, N-2, Was examined by tuning a focused ArF excimer laser beam in the range of 51600-51800 cm(-1) and collecting the fluorescence from the Hopfield lines (B-2 Sigma(+)(u)-X-2 Sigma g(+) of N-2(+)). The resulting spectrum was tentatively assigned at the two-photon level to rotational structure in the double a"(1) Sigma(+)(g)-(1)Sigma(+)(g) (II) potential energy well. To our knowledge this double well has not been seen experimentally before. (c) 2007 Elsevier B.V. All rights reserved. TI - (2+1)REMPI on molecular nitrogen through the 1∑+g(II)-state EP - 246 SN - 0009-2614 IS - iss. 4-6 SP - 242 JF - Chemical Physics Letters VL - vol. 435 DO - https://doi.org/10.1016/j.cplett.2006.12.100 ER - TY - JOUR AU - Bominaar, J. AU - Schoemaecker, C. AU - Dam, N. AU - Meulen, J.J. ter AU - Groenenboom, G.C. PY - 2007 UR - https://hdl.handle.net/2066/34540 TI - (2+1)REMPI on molecular nitrogen through the 1 Sigma(+)(g)(II)-state EP - 246 SN - 0009-2614 IS - iss. 4-6 SP - 242 JF - Chemical Physics Letters VL - vol. 435 DO - https://doi.org/10.1016/j.cplett.2006.12.100 ER - TY - JOUR AU - Gowri, M. AU - Li, H. AU - Kacsich, T. AU - Schermer, J.J. AU - Enckevort, W.J.P. van AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/34958 TI - Critical parameters in hot filament chemical vapor deposition of diamond films on tool steel substrates with CrN interlayers EP - 4608 SN - 0257-8972 IS - iss. 8 SP - 4601 JF - Surface & Coatings Technology VL - vol. 201 DO - https://doi.org/10.1016/j.surfcoat.2006.09.125 ER - TY - JOUR AU - Li, H. AU - Gowri, M. AU - Schermer, J.J. AU - Enckevort, W.J.P. van AU - Kacsich, T. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/35069 TI - Bias enhanced diamond nucleation on Mo and CrN coated stainless steel substrates in a HFCVD reactor EP - 1923 SN - 0925-9635 IS - iss. 11 SP - 1918 JF - Diamond and Related Materials VL - vol. 16 DO - https://doi.org/10.1016/j.diamond.2007.08.006 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/34875 TI - Direct deposition of polycrystalline diamond onto steel substrates EP - 8960 SN - 0257-8972 IS - iss. 22-23 SP - 8955 JF - Surface & Coatings Technology VL - vol. 201 DO - https://doi.org/10.1016/j.surfcoat.2007.04.012 ER - TY - JOUR AU - Moise, A. AU - Parker, D.H. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/36490 AB - Relative state-to-state cross sections and steric asymmetries have been measured for the scattering process: OH (X (2)Pi(3/2),v=0,J=3/2,M-J=3/2,f)+HI ((1)Sigma,v=0,J < 4)-> OH (X (2)Pi,v=0,Omega=1/2,J=1/2-5/2 and Omega=3/2,J=3/2-9/2,e/f)+HI, at 690 cm(-1) collision energy. Comparison with the previously studied systems OH-HCl and OH-HBr reveals relevant features of the potential energy surfaces of these molecular systems. Some measured differences concerning the internal energy distribution after collision and the propensities for the impact with one or the other side of the OH molecule in scattering by HCl, HBr, and HI molecules are discussed. (c) 2007 American Institute of Physics. TI - State-to-state inelastic scattering of OH by HI: A comparison with OH-HCl and OH-HBr EP - 124302-8 SN - 0021-9606 IS - iss. 12 SP - 124302 JF - Journal of Chemical Physics VL - vol. 126 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/36490/36490.pdf?sequence=1 ER - TY - JOUR AU - Dijkstra, R.J. AU - Scheenen, W.J.J.M. AU - Dam, N. AU - Roubos, E.W. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/36248 AB - Surface-enhanced Raman spectroscopy (SERS) is a promising tool to monitor neurotransmitter release at the single-cell level: it is a sensitive technique that provides structural information of the released compounds and spatial information about their release sites. In this study we demonstrate that depolarization-evoked catecholamine secretion by rat phaeochromocytoma (PC12) cells can be spatially resolved by SERS using silver colloids. A suitable SERS substrate was created by adding silver colloids to the cell culture medium. Nomarski-DIC microscopy combined with reflection confocal laser scanning microscopy showed that the colloids were primarily present on top of the cell membrane. The SERS spectra were successfully corrected for the contribution of cell constituents. Dopamine and noradrenaline were localized by examining the correlation coefficient between spectra and reference catecholamine spectra. Potential improvements of the temporal resolution of the technique are discussed. TI - Monitoring neurotransmitter release using surface-enhanced Raman spectroscopy EP - 50 SN - 0165-0270 IS - iss. 1 SP - 43 JF - Journal of Neuroscience Methods VL - vol. 159 DO - https://doi.org/10.1016/j.jneumeth.2006.06.017 ER - TY - THES AU - Verbiezen, K. PY - 2007 SN - 9090214356 UR - https://hdl.handle.net/2066/30100 AB - Despite the diesel engine's popularity, its emission of high levels of nitric oxide (NO) is problematic. Reduction of pollutant emissions requires a profound understanding of the combustion process and in particular the exact NO formation pathways. Since the latter are not entirely understood, accurate quantitative experiments are necessary to provide new insights and to validate existing combustion models. To date, reliable experimental techniques for in-cylinder NO concentration measurements are scarce. This thesis is dedicated to the development of the laser-induced fluorescence (LIF) technique to a level at which quantitative, in-cylinder concentration measurements of NO can be realised in a heavy-duty diesel engine. A number of laser techniques are investigated, allowing a correction for the severe attenuation that is experienced by both the laser beam and the induced fluorescence in the combustion chamber. Additionally, a spectroscopic model accounting for the pressure and temperature dependence of the fluorescence intensity per molecule is discussed. By applying these two corrections, quantitative in-cylinder NO concentrations are obtained. An important observation is that, during the combustion stroke, significant amounts of NO are observed before the most important NO formation mechanism (the Zeldovich mechanism) can come into play, suggesting that other mechanisms are involved in the early NO formation. Furthermore, measured in-cylinder NO concentration histories are compared with calculated concentrations. Although the agreement between experiment and calculation suggests that the Zeldovich mechanism is a major contributor to the formation of the observed NO, the contribution of other mechanisms early in the combustion cannot be excluded. PB - [S.l. : s.n.] TI - Quantitative NO measurements in a diesel engine N1 - RU Radboud Universiteit Nijmegen, 8 februari 2007 N1 - Promotores : Meulen, J.J. ter, Meerts, W.L. Co-promotor : Dam, N.J. PS - II, 162 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/30100/30100.pdf?sequence=1 ER - TY - THES AU - Moise, A.V. PY - 2007 UR - https://hdl.handle.net/2066/30159 AB - The interaction of the OH radical with atoms and other molecules is relevant for many physical and chemical processes involved in atmospheric, combustion and interstellar chemistry. Various experimental and theoretical studies have revealed information concerning the interaction of the hydroxyl radical with rare gas atoms like He, Ar, Ne and molecules like H2, N2, CH4, CO and CO2. A remarkably good agreement between the theoretical and experimental results was obtained for the OH-Ar inelastic scattering, confirming thus the accuracy of the theoretical models. In this thesis crossed molecular beams experiments are presented in which the scattering of OH molecules by HCl, HBr, HI and Xe is studied. State-to-state cross-sections and steric asymmetries are measured which probe the complete Potential Energy Surfaces (PES) for these atom-diatom or diatom-diatom systems. The experimental techniques employed are: supersonic molecular beam expansions, electrical discharge, electrostatic fields to focus and select the OH molecules in a single internal energy state and to orient them with the H-side or the O-side towards the collision partner, laser induced fluorescence, resonance enhanced multiphoton ionization and velocity map imaging. The rotational inelastic cross sections obtained indicate similarities among the OH-HCl, OH-HBr and OH-HI scattering systems. Generally, the spin-orbit conserving transitions dominate, the -doublet transition exhibits the largest cross-section and the magnitude of the cross-sections decreases with rotational excitation. The measured steric asymmetries reflect the higher anisotropy of the OH-HCl interaction potential. Small steric asymmetries are measured for OH-HBr and OH-HI. A possible correlation between the magnitude and sign of the experimental steric asymmetries with the molecular configurations for the PES minima and the occurrence of the reactions is considered. In order to enrich the knowledge of the OH-rare gases interaction, state-to-state inelastic cross sections and steric asymmetries for the OH molecule scattered by Xe are presented. The experimental results are compared with the theoretical results and with the previously reported results for OH-He and OH-Ar scattering. The major differences observed are discussed aiming at the understanding of the contribution to the interaction of specific type of the intermolecular forces. PB - Nijmegen : [S.n.] TI - Scattering of State-Selected and Oriented Hydroxyl Radicals by Halogen Hydrides and Xenon N1 - RU, Molecular and Laser Physics, 28 augustus 2007 N1 - Promotores : Meulen, J.J. ter, Parker, D.H. PS - 110 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/30159/30159.pdf?sequence=1 ER - TY - JOUR AU - Bougie, B. AU - Ganippa, L.C. AU - Vliet, A.P. van AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/36471 AB - Time-resolved laser-induced incandescence was used to estimate primary particle size distributions inside the combustion chamber of a heavy-duty diesel engine as a function of the crank angle, for two different engine loads at two different probe locations. Assuming a log-normal particle size distribution, an increase of the mean primary particle size was seen during the first stages of the combustion cycle, followed by a decrease later on during the combustion process. TI - Soot particulate size characterization in a heavy-duty diesel engine for different engine loads by laser-induced incandescence EP - 691 SN - 1540-7489 IS - iss. 1 SP - 685 JF - Proceedings of the Combustion Institute VL - vol. 31 DO - https://doi.org/10.1016/j.proci.2006.08.040 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/36471/36471.pdf?sequence=1 ER - TY - THES AU - Bougie, H.J.T. PY - 2007 UR - https://hdl.handle.net/2066/224289 PB - [S.l. : s.n.] TI - On particulate characterization in a heavy-duty Diesel engine by time-resolved laser-induced incandescence N1 - RU Radboud Universiteit Nijmegen, 3 december 2007 N1 - Promotor : Meulen, J.J. ter ER - TY - JOUR AU - Boot, M.D. AU - Frijters, P.J.M. AU - Klein Douwel, R.J.H. AU - Baert, R.S.G. PY - 2007 UR - https://hdl.handle.net/2066/36284 TI - Oxygenated fuel composition impact on heavy-duty diesel engine emissions EP - 2018 SN - 0148-7191 IS - iss. 2007-01-2018 SP - 01 JF - Sae Technical Paper Series VL - vol. 2007 ER - TY - JOUR AU - Klein Douwel, R.J.H. AU - Frijters, P.J.M. AU - Somers, L.M.T. AU - Boer, W.A. de AU - Baert, R.S.G. PY - 2007 UR - https://hdl.handle.net/2066/34524 TI - Macroscopic diesel fuel spray shadowgraphy using high speed digital imaging in a high pressure cell EP - 2007 SN - 0016-2361 IS - iss. 12 SP - 1994 JF - Fuel VL - vol. 86 DO - https://doi.org/10.1016/j.fuel.2006.11.039 ER - TY - JOUR AU - Verbiezen, K. AU - Donkerbroek, A.J. AU - Klein Douwel, R.J.H. AU - Vliet, A.P. van AU - Frijters, P.J.M. AU - Seykens, X.L.J. AU - Baert, R.S.G. AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/34867 TI - Diesel combustion: In-cylinder NO concentrations in relation to injection timing EP - 346 SN - 0010-2180 IS - iss. 1-2 SP - 333 JF - Combustion and Flame VL - vol. 151 DO - https://doi.org/10.1016/j.combustflame.2007.05.005 ER - TY - JOUR AU - Verbiezen, K. AU - Klein Douwel, R.J.H. AU - Vliet, A.P. van AU - Donkerbroek, A.J. AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2007 UR - https://hdl.handle.net/2066/36380 AB - We present quantitative, in-cylinder, UV-laser-induced fluorescence measurements of nitric oxide in a heavy-duty Diesel engine. Processing of the raw fluorescence signals includes a detailed correction, based on additional measurements, for the effect of laser beam and fluorescence attenuation, and for the pressure and temperature dependence of the fluorescence efficiency, based on numerical modelling. These corrections are largest early in the stroke, when quenching rates are high and UV transmission is low. Together, they vary over more than three orders of magnitude during the combustion stroke. Fully quantitative results are realised by an overall calibration using independent concentration measurements in the exhaust gas. The data provide evidence of NO formation during both the premixed and mixing-controlled combustion phases. TI - Quantitative laser-induced fluorescence measurements of nitric oxide in a heavy-duty Diesel engine EP - 773 SN - 1540-7489 IS - iss. 1 SP - 765 JF - Proceedings of the Combustion Institute VL - vol. 31 DO - https://doi.org/10.1016/j.proci.2006.07.061 ER - TY - THES AU - Elenbaas, T. PY - 2006 UR - https://hdl.handle.net/2066/36204 PB - Eindhoven : [S.n.] TI - Writing lines in turbulent air using Air Photolysis And Recombination Tracking N1 - Technical University Eindhoven, N1 - Promotor : Meulen, J.J. ter PS - 158 p. ER - TY - JOUR AU - Gowri, M. AU - Li, H. AU - Schermer, J.J. AU - Enckevort, W.J.P. van AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35933 TI - Direct deposition of diamond films on steel using a three-step process EP - 501 SN - 0925-9635 IS - iss. 4-8 SP - 498 JF - Diamond and Related Materials VL - vol. 15 DO - https://doi.org/10.1016/j.diamond.2005.10.040 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/35933/35933.pdf?sequence=1 ER - TY - JOUR AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35577 TI - Niveauverlaging door het studiehuis? EP - 11 SN - 0926-4264 IS - iss. 1 SP - 10 JF - Nederlands Tijdschrift voor Natuurkunde VL - vol. 72 ER - TY - JOUR AU - Brouard, M. AU - Cireasa, D.R. AU - Clark, A.P. AU - Groenenboom, G.C. AU - Hancock, G. AU - Horrocks, S.J. AU - Quadrini, F. AU - Ritchie, G.A.D. AU - Vallance, C. PY - 2006 UR - https://hdl.handle.net/2066/35172 AB - Polarized laser photolysis, coupled with resonantly enhanced multiphoton ionization detection of O(D-1(2)) and velocity-map ion imaging, has been used to investigate the photodissociation dynamics of ozone at 193 nm. The use of multiple pump and probe laser polarization geometries and probe transitions has enabled a comprehensive characterization of the angular momentum polarization of the O(D-1(2)) photofragments, in addition to providing high-resolution information about their speed and angular distributions. Images obtained at the probe laser wavelength of around 205 nm indicate dissociation primarily via the Hartley band, involving absorption to, and diabatic dissociation on, the B B-1(2)(3 (1)A(1)) potential energy surface. Rather different O(D-1(2)) speed and electronic angular momentum spatial distributions are observed at 193 nm, suggesting that the dominant excitation at these photon energies is to a state of different symmetry from that giving rise to the Hartley band and also indicating the participation of at least one other state in the dissociation process. Evidence for a contribution from absorption into the tail of the Hartley band at 193 nm is also presented. A particularly surprising result is the observation of nonzero, albeit small values for all three rank K=1 orientation moments of the angular momentum distribution. The polarization results obtained at 193 and 205 nm, together with those observed previously at longer wavelengths, are interpreted using an analysis of the long range quadrupole-quadrupole interaction between the O(D-1(2)) and O-2((1)Delta(g)) species. (c) 2006 American Institute of Physics. TI - The photodissociation dynamics of ozone at 193 nm: An O(D-1(2)) angular momentum polarization study EP - 133308-16 SN - 0021-9606 IS - iss. 13 SP - 133308-1 JF - Journal of Chemical Physics VL - vol. 125 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/35172/35172.pdf?sequence=1 ER - TY - JOUR AU - Verbiezen, K. AU - Vliet, A.P. van AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/36123 TI - Absorption of NO laser-induced fluorescence by hot O-2 and CO2 EP - 641 SN - 0010-2180 IS - iss. 3 SP - 638 JF - Combustion and Flame VL - vol. 144 DO - https://doi.org/10.1016/j.combustflame.2005.11.001 ER - TY - JOUR AU - Dreier, T. AU - Bougie, B. AU - Dam, N.J. AU - Gerber, T. PY - 2006 UR - https://hdl.handle.net/2066/35660 AB - In this study experimental single-pulse, time-resolved laser-induced incandescence (TIRE-LII) signal intensity profiles acquired during transient Diesel combustion events at high pressure were processed. Experiments were performed between 0.6 and 7 MPa using a high-temperature high-pressure constant volume cell and a heavy-duty Diesel engine, respectively. Three currently available LII sub-model functions were investigated in their performance for extracting ensemble mean soot particle diameters using a least-squares fitting routine, and a "quick-fit" interpolation approach, respectively. In the calculations a particle size distribution as well as the temporal and spatial intensity profile of the heating laser was taken into account. For the poorly characterized sample environments of this work, some deficiencies in these state-of-the-art data evaluation procedures were revealed. Depending on the implemented model function, significant differences in the extracted particle size parameters are apparent. We also observe that the obtained "best-fit" size parameters in the fitting procedure are biased by the choice of their respective "first-guess" initial values. This behavior may be caused by the smooth temporal profile of the LII cooling curve, giving rise to shallow local minima on the multi-parameter least squares residuals, surface sampled during the regression analysis procedure. Knowledge of the gas phase temperature of the probed medium is considered important for obtaining unbiased size parameter information from TIRE-LII measurements. TI - Modeling of time-resolved laser-induced incandescence transients for particle sizing in high-pressure spray combustion environments: a comparative study EP - 411 SN - 0946-2171 IS - iss. 3 SP - 403 JF - Applied Physics B. Lasers and Optics VL - vol. 83 DO - https://doi.org/10.1007/s00340-006-2207-0 ER - TY - JOUR AU - Bougie, H.J.T. AU - Ganippa, L.C. AU - Vliet, A.P. van AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35725 TI - Laser-induced incandescence particle size measurements in a heavy-duty diesel engine EP - 637 SN - 0010-2180 IS - iss. 3 SP - 635 JF - Combustion and Flame VL - vol. 145 DO - https://doi.org/10.1016/j.combustflame.2006.03.002 ER - TY - JOUR AU - Schulz, C. AU - Kock, B.F. AU - Hofmann, M. AU - Michelsen, H. AU - Will, S. AU - Bougie, B. AU - Suntz, R. AU - Smallwood, G. PY - 2006 UR - https://hdl.handle.net/2066/35726 AB - This paper provides an overview of a workshop focused on fundamental experimental and theoretical aspects of soot measurements by laser-induced incandescence (LII). This workshop was held in Duisburg, Germany in September 2005. The goal of the workshop was to review the current understanding of the technique and identify gaps in this understanding associated with experimental implementation, model descriptions, and signal interpretation. The results of this workshop suggest that uncertainties in the understanding of this technique are sufficient to lead to large variability among model predictions from different LII models, among measurements using different experimental approaches, and between modeled and measured signals, even under well-defined conditions. This article summarizes the content and conclusions of the workshop, discusses controversial topics and areas of disagreement identified during the workshop, and highlights recent important references related to these topics. It clearly demonstrates that despite the widespread application of LII for soot-concentration and particle-size measurements there is still a significant lack in fundamental understanding for many of the underlying physical processes. TI - Laser-induced incandescence: recent trends and current questions EP - 354 SN - 0946-2171 IS - iss. 3 SP - 333 JF - Applied Physics B. Lasers and Optics VL - vol. 83 DO - https://doi.org/10.1007/s00340-006-2260-8 ER - TY - JOUR AU - Bougie, B. AU - Ganippa, L.C. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35588 AB - Time-resolved laser-induced incandescence (TR-LII) measurements have been performed inside the combustion chamber of a heavy-duty diesel engine running at low load and with regular diesel fuel. The LII traces were interpreted in terms of primary particle sizes, comparing two different assumed particle-size distributions: a mono-disperse and a log-normal distribution. The initial temperature of the particles (immediately after the laser pulse) is estimated by two-color pyrometry. We conclude that the initial temperature of the particles is not very critical for the outcome of the fitting procedure for the (mean) radius. Under the high-pressure conditions in the engine, the time dependence of the LII intensity contains sufficient structure to allow retrieval of details of the particle-size distribution. TI - On particulate characterization in a heavy-duty diesel engine by time-resolved laser-induced incandescence EP - 485 SN - 0946-2171 IS - iss. 3 SP - 477 JF - Applied Physics B. Lasers and Optics VL - vol. 83 DO - https://doi.org/10.1007/s00340-006-2195-0 ER - TY - RPRT AU - Verbiezen, K. AU - Vliet, A.P. van AU - Donkerbroek, A.J. AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35492 PB - onbekend : Applied Molecular Physics TI - Quantitative laser-induced fluorescence measurements of nitric oxide in a heavy-duty Diesel engine PS - 3 p. ER - TY - JOUR AU - Moise, A.V. AU - Cireasa, D.R. AU - Parker, D.H. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/35475 AB - Relative state-to-state cross sections of OH molecules in the (2)Pi(3/2), v=0, J=3/2, M-J=3/2, f state have been determined for transitions up to (2)Pi(3/2), v=0, J=11/2, f and (2)Pi(1/2), v=0, J=7/2, e states by collisions with HBr molecules ((1)Sigma, v=0, J < 4) at 750 cm(-1) collision energy. In order to investigate features of the anisotropy of the OH-HBr potential energy surface, the steric asymmetries, which account for the effect of the OH orientation with respect to the collision partner, have been measured. A comparison with other systems previously studied shows strong similarities with the OH-HCl system. (c) 2006 American Institute of Physics. TI - Rotationally inelastic scattering of OH ((II3/2)-I-2, v=0, J=3/2, f) by HBr ((1)Sigma, v=0, J < 4) EP - 204315-7 SN - 0021-9606 IS - iss. 20 SP - 204315 JF - Journal of Chemical Physics VL - vol. 125 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/35475/35475.pdf?sequence=1 ER - TY - CONF AU - Klein Douwel, R.J.H. PY - 2006 UR - https://hdl.handle.net/2066/35398 PB - Nieuwegein : [S.n.] TI - Simultaneous high-speed and spectroscopic imaging in a heavy-duty diesel engine using various fuels and simulated EGR CT - COMBURA ER - TY - JOUR AU - Verbiezen, K. AU - Klein Douwel, R.J.H. AU - Vliet, A.P. van AU - Donkerbroek, A.J. AU - Meerts, W.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2006 UR - https://hdl.handle.net/2066/36058 AB - Quantification of the nitric oxide (NO) concentration inside the cylinder of a Diesel engine by means of laser-induced fluorescence (LIF) measurements requires, amongst others, knowledge of the attenuation of the ultraviolet radiation involved. We present a number of laser diagnostic techniques to assess this attenuation, enabling a correction for laser intensity and detection efficiency of the raw NO LIF data. Methods discussed include overall laser beam transmission, bidirectional laser scattering (bidirectional LIF), spectrally resolved fluorescence imaging, and Raman scattering by N-2. A combination of techniques is necessary to obtain the complete attenuation of laser beam and NO fluorescence. The overall laser beam transmission measurements and bidirectional LIF measurements (the latter yielding spatially resolved transmission) provide evidence of a non-uniform attenuation distribution, with predominant attenuation within or near the piston bowl. Fluorescence imaging of multiple vibrational bands through a spectrograph is shown to be a powerful method for obtaining spatially resolved data on the transmission losses of fluorescence. Special attention is paid to the role of CO2 and O-2 as UV light absorbers, and the consequences to different excitation-detection schemes for NO. TI - Attenuation corrections for in-cylinder NO LIF measurements in a heavy-duty Diesel engine EP - 166 SN - 0946-2171 IS - iss. 1 SP - 155 JF - Applied Physics B. Lasers and Optics VL - vol. 83 DO - https://doi.org/10.1007/s00340-006-2141-1 ER - TY - CHAP AU - Dam, N.J. PY - 2005 UR - https://hdl.handle.net/2066/32755 PB - Rhode Saint Genese, Belgium : Von Karman Institute for Fluid Dynamics TI - Molecular Tagging Velocimetry EP - 63 SN - 2930389575 SP - 1 CT - Scarano, M.L.R.a.F. (ed.), Von Karman Institute Lecture Series 2005-1: Advanced Measurement Techniques for Supersonic Flows ER - TY - JOUR AU - Tolboom, R.A.L. AU - Dam, N.J. AU - Meulen, J.J. ter AU - Bakker, P.G. PY - 2005 UR - https://hdl.handle.net/2066/32890 AB - Planar Raman imaging through a spectrograph is demonstrated as a diagnostic tool for quantitative flow visualisation of internal supersonic wedge flow. A dedicated Bayesian deconvolution filter is used to remove the spectral structure that is introduced by the spectrograph. The 2D density field is determined with ca. 10% precision using average images over 6,000 laser pulses, down to 0.5 mm from the surface of the wedge. Direct interpretations of Raman intensities provide more precise density data than indirect interpretations based on shock geometry in 2D inviscid flow. TI - Quantitative planar Raman imaging through a spectrograph: visualisation of a supersonic wedge flow EP - 730 SN - 0723-4864 IS - iss. 6 SP - 720 JF - Experiments in Fluids VL - vol. 38 DO - https://doi.org/10.1007/s00348-005-0940-5 ER - TY - JOUR AU - Buijnsters, J.G. AU - Rao, R.V.S. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Gebert, A. AU - Meulen, J.J. ter PY - 2005 UR - https://hdl.handle.net/2066/32846 AB - Using a hot filament chemical vapour deposition reactor, diamond films of approximately 2-3 mum in thickness were deposited on tool steel specimens with three different interlayer systems, namely CrN, Si and borided steel. The morphology, defect densities and residual stresses of the diamond films were strongly governed by the type of interlayer used. Electrochemical potentiodynamic polarisation studies have been carried out on the diamond deposited tool steel specimens in NaCl solutions of two different concentrations, 0.01 M and 0.50 M, respectively. The type of interlayer used for diamond coating on tool steel has a strong influence on the corrosion potential. The maximum shift in the equilibrium corrosion potential is observed for the silicon interlayer. However, it leads to selective dissolution of the carbide phase upon anodic polarisation. A near total resistance to pitting of the CrN coated tool steel specimens is observed with the introduction of a very thin diamond layer of 2 - 3 mum. With increasing chloride ion concentration in the electrolyte, reverse trends in the shift of EO, are observed for the blank tool steels in comparison to the diamond-coated specimens. Detailed SEM characterisation of the corrosion-tested specimens indicates the possible operating mechanisms. (C) 2004 Elsevier B.V All rights reserved. TI - Pitting corrosion behaviour of diamond coated tool steel EP - 126 SN - 0257-8972 IS - iss. 1 SP - 119 JF - Surface & Coatings Technology VL - vol. 191 DO - https://doi.org/10.1016/j.surfcoat.2004.01.039 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2005 UR - https://hdl.handle.net/2066/33325 AB - Diamond films have been grown by hot-filament chemical vapour deposition (CVD) on molybdenum substrates under different growth conditions. The films grown with increasing substrate temperatures show a higher interconnection of diamond grains, whereas increasing methane concentrations in the 0.5-4.0% range lead to a transition from micro- towards nanocrystalline films. X-ray diffraction analysis shows Mo2C interlayer formation. Indentation, scratch and sand erosion tests are used to evaluate the adhesion strength of the diamond films. Using steel ball indenters (circle divide 750 mum), indentation and scratch adhesion tests are performed up to final loads of 200 N. Upon indentation, the load values at which diamond film failure such as flaking and detachment is first observed, increase for increasing temperatures in the deposition temperature range of 450-850 degreesC. The scratch adhesion tests show critical load values in the range of 16-40 N normal load for films grown for 4 h. In contrast, diamond films grown for 24 h at a methane concentration of 0.5% do not show any failure at all upon scratching up to 75 N. Film failure upon indenting and scratching is also found to decrease for increasing methane concentration in the CVD gas mixture. The sand abrasion tests show significant differences in coating failure for films grown at varying CH4/H-2 ratios. In contrast to the other tests, here best coating performance is observed for the films deposited with a methane concentration of 4%. (C) 2004 Elsevier B.V. All rights reserved. TI - Adhesion analysis of polycrystalline diamond films on molybdenum by means of scratch, indentation and sand abrasion testing EP - 196 SN - 0040-6090 IS - iss. 1-2 SP - 186 JF - Thin Solid Films VL - vol. 474 DO - https://doi.org/10.1016/j.tsf.2004.09.021 ER - TY - JOUR AU - Bougie, H.J.T. AU - Tulej, M. AU - Dreier, T. AU - Dam, N.J. AU - Meulen, J.J. ter AU - Gerber, T. PY - 2005 UR - https://hdl.handle.net/2066/32816 AB - We report on spatially and temporally resolved optical diagnostic measurements of propagation and combustion of diesel sprays introduced through a single-hole fuel injector into a constant volume, high-temperature, high-pressure cell. From shadowgraphy images in non-reacting environments of pure nitrogen, penetration lengths and dispersion angles were determined for non-vaporizing and vaporizing conditions, and found to be in reasonable agreement with standard models for liquid jet propagation and break-up. Quasi-simultaneous two-dimensional images were obtained of laser elastic light scattering, shadowgraphs and spectrally integrated flame emission in a reacting environment (cell temperature 850 K). In addition laser-induced incandescence was employed for the identification of soot-loaded regions. The simultaneously recorded spray images exhibit remarkable structural similarity and provide complementary information about the spray propagation and combustion process. The measurements also reveal the fuel vapor cloud extending well beyond the liquid core and close to the nozzle tip. Ignition takes place close to the tip of the spray within the mixing layer of fuel vapor and surrounding air. Soot is formed in the vapor core region at the tip of the liquid fuel jet. Our results support recently developed phenomenological model on diesel spray combustion. TI - Optical diagnostics of diesel spray injections and combustion in a high-pressure high-temperature cell EP - 1045 SN - 0946-2171 IS - iss. 8 SP - 1039 JF - Applied Physics B. Lasers and Optics VL - vol. 80 DO - https://doi.org/10.1007/s00340-005-1830-5 ER - TY - JOUR AU - Cireasa, D.R. AU - van Beek, M.C. AU - Moise, A.V. AU - Meulen, J.J. ter PY - 2005 UR - https://hdl.handle.net/2066/32632 AB - Parity resolved state-to-state cross sections for inelastic scattering of OH (X (2)Pi) by HCl were measured in a crossed molecular beam experiment at the collision energy of 920 cm(-1). The OH (X (2)Pi) radicals were prepared in a single quantum state, Omega=3/2, J=3/2, M-J=3/2, f, by means of electrostatic state selection in a hexapole field. The rotational distribution of the scattered OH radicals by HCl was probed by saturated LIF spectroscopy of the 0-0 band of the A (2)Sigma(+)-X (2)Pi transition. Relative state-to-state cross sections were measured for rotational excitations up to J=9/2 within the Omega=3/2 spin-orbit manifold and up to J=7/2 within the Omega=1/2 spin-orbit manifold. A propensity for spin-orbit conserving transitions was found, but no propensity for excitation into a particular Lambda-doublet component of the same rotational state was evident. The data are presented and discussed in comparison with results previously obtained for collisions of OH with CO (E-coll=450 cm(-1)) and N-2 (E-coll=410 cm(-1)) and with new data we have measured for the OH+CO system at a comparable collision energy (E-coll=985 cm(-1)). This comparison suggests that the potential energy surface (PES) governing the interaction between OH and HCl is more anisotropic than the PES's governing the intermolecular interaction of OH with CO and N-2. (C) 2005 American Institute of Physics. TI - Inelastic state-to-state scattering of OH ((2)Pi(3/2),J=3/2,f) by HCl EP - 074319 SN - 0021-9606 IS - iss. 7 SP - 074319 JF - Journal of Chemical Physics VL - vol. 122 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/32632/32632.pdf?sequence=1 ER - TY - JOUR AU - Cireasa, D.R. AU - Moise, A.V. AU - Meulen, J.J. ter PY - 2005 UR - https://hdl.handle.net/2066/33012 AB - In this paper we address stereodynamical issues in the inelastic encounters between OH (Chi(2)Pi) radicals and HCl (Chi(1)Sigma(+)). The experiments were performed in a crossed molecular-beam machine at the nominal collision energy of 920 cm(-1). Prior to the collisions, the OH molecules were selected using a hexapole in a well-defined rotational state v=0, Omega=3/2, J=3/2, M-J=3/2, f, and subsequently oriented in a homogeneous electrical field. We have measured rotationally resolved relative cross sections for collisions in which OH is oriented with either the O side or the H side towards HCl, from which we have calculated the corresponding steric asymmetry factors S. The results are presented in comparison with data previously obtained by our group for the inelastic scattering of OH by CO (E-coll=985 cm(-1)) and N-2 (E-coll=985 cm(-1)) studied under similar experimental conditions. The dissimilarity in the behavior of the OH+HCl system revealed by this comparison is explained on the basis of the difference in the anisotropy of the interaction potential governing the collisions. The interpretation of the data takes into account the specific features of both nonreactive and reactive parts of the potential-energy surface. The results indicate that the scattering dynamics at this collision energy may be influenced by the HO-HCl van der Waals well and by reorientation effects determined by the long-range electrostatic forces and, furthermore, may involve reactive collisions. (C) 2005 American Institute of Physics. TI - Steric effects in state-to-state scattering of OH ((2)Pi(3/2), J=3/2,f) by HCl EP - 64310 SN - 0021-9606 IS - iss. 6 SP - 64310 JF - Journal of Chemical Physics VL - vol. 123 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/33012/33012.pdf?sequence=1 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2004 UR - https://hdl.handle.net/2066/112605 TI - The adhesion of hot-filament CVD diamond films on AISI type 316 austenitic stainless steel EP - 857 SN - 0925-9635 IS - iss. 4-8 SP - 848 JF - Diamond and Related Materials VL - vol. 13 DO - http://dx.doi.org/10.1016/j.diamond.2003.11.012 ER - TY - JOUR AU - Boelens, H. AU - Dijkstra, R.J. AU - Eilers, P.H.C. AU - Fitzpatrick, F. AU - Westerhuis, J.A. PY - 2004 UR - https://hdl.handle.net/2066/58787 AB - A new method to eliminate the background spectrum (EBS) during analyte elution in column liquid chromatography (LC) coupled to spectroscopic techniques is proposed. This method takes into account the shape and also intensity differences of the background eluent spectrum. This allows the EBS method to make a better estimation of the background eluent spectrum during analyte elution. This is an advantage for quantification as well as for identification of analytes. The EBS method uses a two-step procedure. First, the baseline spectra are modeled using a limited number of principal components (PCs). Subsequently, an asymmetric least squares (asLS) regression method is applied using these principal components to correct the measured spectra during elution for the background contribution. The asymmetric least squares regression needs one parameter, the asymmetry factor p. This asymmetry factor determines relative weight of positive and negative residuals. Simulations are performed to test the EBS method in well-defined situations. The effect of spectral noise on the performance and the sensitivity of the EBS method for the value of the asymmetry factor p is tested. Two applications of the EBS method are discussed. In the first application, the goal is to extract the analyte spectrum from an LC-Raman analysis. In this case, the EBS method facilitates easy identification of unknown analytes using spectral libraries. In a second application, the EBS method is used for baseline correction in LC-diode array detection (DAD) analysis of polymeric standards during a gradient elution separation. It is shown that the EBS method yields a good baseline correction, without the need to perform a blank chromatographic run. (C) 2004 Elsevier B.V. All rights reserved. TI - New background correction method for liquid chromatography with diode array detection, infrared spectroscopic detection and Raman spectroscopic detection EP - 30 SN - 0021-9673 IS - iss. 1-2 SP - 21 JF - Journal of Chromatography. A VL - vol. 1057 DO - https://doi.org/10.1016/j.chroma.2004.09.035 ER - TY - JOUR AU - Boelens, H. AU - Dijkstra, R.J. AU - Eilers, P.H.C. AU - Fitzpatrick, F. AU - Westerhuis, J.A. PY - 2004 UR - https://hdl.handle.net/2066/58788 AB - A new method to eliminate the background spectrum (EBS) during analyte elution in column liquid chromatography (LC) coupled to spectroscopic techniques is proposed. This method takes into account the shape and also intensity differences of the background eluent spectrum. This allows the EBS method to make a better estimation of the background eluent spectrum during analyte elution. This is an advantage for quantification as well as for identification of analytes. The EBS method uses a two-step procedure. First, the baseline spectra are modeled using a limited number of principal components (PCs). Subsequently, an asymmetric least squares (asLS) regression method is applied using these principal components to correct the measured spectra during elution for the background contribution. The asymmetric least squares regression needs one parameter, the asymmetry factor p. This asymmetry factor determines relative weight of positive and negative residuals. Simulations are performed to test the EBS method in well-defined situations. The effect of spectral noise on the performance and the sensitivity of the EBS method for the value of the asymmetry factor p is tested. Two applications of the EBS method are discussed. In the first application, the goal is to extract the analyte spectrum from an LC-Raman analysis. In this case, the EBS method facilitates easy identification of unknown analytes using spectral libraries. In a second application, the EBS method is used for baseline correction in LC-diode array detection (DAD) analysis of polymeric standards during a gradient elution separation. It is shown that the EBS method yields a good baseline correction, without the need to perform a blank chromatographic run. (C) 2004 Elsevier B.V. All rights reserved. TI - New background correction method for liquid chromatography with diode array detection, infrared spectroscopic detection and Raman spectroscopic detection EP - 30 SN - 0021-9673 IS - iss. 1-2 SP - 21 JF - Journal of Chromatography. A VL - vol. 1057 DO - https://doi.org/10.1016/j.chroma.2004.09.035 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2004 UR - https://hdl.handle.net/2066/60184 AB - Steel ball indentation and scratch adhesion testing of hot filament chemical vapour deposited diamond films onto AISI type 316 austenitic stainless steel substrates using two different interlayer systems, namely chromium nitride and borided steel, have been investigated. In order to compare the adhesion of these films with that of a well-known and strongly adherent system, detailed adhesion tests were performed on diamond films grown on molybdenum substrates as well. Scanning electron microscopy analysis of various indented regions on the diamond-coated steel and molybdenum samples in combination with the measurement of the acoustic emission signals during loading, indicate that the adhesion of the coatings on the stainless steel substrates with the CrN interlayer is comparable and only slightly less than that of the strongly adhering diamond films on the molybdenum samples. The critical load value derived from the acoustic emission signals at which partial delammation of the diamond films is first observed, is significantly lower for the diamond-coated steel with the boride interlayer than that obtained with the CrN interlayer for the present deposition conditions used. The steel ball indentation tests also show that the hardness and thickness of the interlayer have a strong effect on the penetration depths of the indents. Scratch tests performed on the diamond coated stainless steel specimens with the boride interlayer show no significant coating failure for loads up to 80 N. (C) 2003 Elsevier B.V. All rights reserved. TI - The adhesion of hot-filament CVD diamond films on AISI type 316 austenitic stainless steel EP - 857 SN - 0925-9635 IS - iss. 4-8 SP - 848 JF - Diamond and Related Materials VL - vol. 13 DO - https://doi.org/10.1016/j.diamond.2003.11.012 ER - TY - JOUR AU - Tolboom, R.A.L. AU - Dam, N.J. AU - Meulen, J.J. ter PY - 2004 UR - https://hdl.handle.net/2066/60592 AB - The Bayesian deconvolution algorithm described in a preceding paper [Appl. Opt. 43, 5669-5681 (2004)] is applied to measurement of the two-dimensional stoichiometry field in a combustible methane-air mixture by Raman imaging through a spectrograph. Stoichiometry (fuel equivalence ratio) is derived from the number density fields of methane and nitrogen, with a signal-to-noise ratio of approximately 10 in a 600-laser-shot average. Prospects for single-shot Raman imaging are discussed. TI - Quantitative imaging through a spectrograph. 2. Stoichiometry mapping by Raman scattering. EP - 5690 SN - 0003-6935 IS - iss. 30 SP - 5682 JF - Applied Optics VL - vol. 43 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/60592/60592.pdf?sequence=1 ER - TY - JOUR AU - Tolboom, R.A.L. AU - Dam, N.J. AU - Meulen, J.J. ter AU - Mooij, J.M. AU - Maassen, J.D.M. PY - 2004 UR - https://hdl.handle.net/2066/60584 TI - Quantitative Imaging through a Spectrograph – 1: principles and theory EP - 5681 SN - 0003-6935 IS - iss. 30 SP - 5669 JF - Applied Optics VL - vol. 43 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/60584/60584.pdf?sequence=1 ER - TY - JOUR AU - Brouard, M. AU - Cireasa, D.R. AU - Clark, A.P. AU - Preston, T.J. AU - Vallance, C. AU - Groenenboom, G.C. AU - Vasyutinskii, O.S. PY - 2004 UR - https://hdl.handle.net/2066/60303 AB - The 193-nm photodissociation Of SO2 has been studied using the resonantly enhanced multiphoton ionization of ground-state O(P-3(J)), coupled with velocity-map ion imaging. The dependence of the ion images on the linear polarization of pump and probe radiation has been used to determine the electronic angular momentum alignment of the recoiling, state-selected atoms, together with their speed distribution and translational anisotropy. The polarization data for J = 1 and 2 have been used to estimate the state multipole moments of the O-atom electron spin and orbital angular momenta. The data suggest that both sources of O-atom electronic angular momentum are polarized. It is shown that the spin polarization could either arise from exit-channel couplings or be a manifestation of the participation of triplet states in the dissociation. The angular dependence of the potential energy in the exit channel is examined using long-range quadrupole-dipole and quadrupole-quadrupole interaction terms, from which molecular-frame multipole moments of the orbital angular momentum of the recoiling 0 atoms have been calculated. Comparison with the experimentally derived multipole moments is used to help provide insight into the dissociation mechanism. The results are also discussed in light of similar experimental data from the photodissociation of N2O. TI - O(P-3(J)) alignment from the photodissociation of SO2 at 193 nm EP - 7976 SN - 1089-5639 IS - iss. 39 SP - 7965 JF - The Journal of Physical Chemistry A VL - vol. 108 DO - https://doi.org/10.1021/jp049328v L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/60303/60303.pdf?sequence=1 ER - TY - JOUR AU - Kłos, J. AU - Aoiz, F.J. AU - Cireasa, D.R. AU - Meulen, J.J. ter PY - 2004 UR - https://hdl.handle.net/2066/60684 TI - Rotationally inelastic scattering of OH(²π) by HCl(¹Σ). Comparison of experiment and theory EP - 4974 SN - 1463-9076 IS - iss. 21 SP - 4968 JF - PCCP Physical Chemistry Chemical Physics VL - vol. 6 DO - https://doi.org/10.1039/b411309h L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/60684/60684.pdf?sequence=1 ER - TY - MGZN AU - Bougie, H.J.T. PY - 2004 UR - https://hdl.handle.net/2066/60350 TI - Dodelijke dieseldampen JF - B for You ER - TY - THES AU - Buijnsters, Ivan PY - 2003 SN - 9090167692 UR - https://hdl.handle.net/2066/19264 AB - The main goal of this project was to establish the feasibility of depositing well adhering polycrystalline diamond coatings on steel substrates. It is well known that the growth and adhesion of diamond layers directly onto steels is complicated by the high carbon solubility and the high thermal expansion coefficient of the steel substrate material. Due to the catalytic effect of iron on the formation of graphitic soot, the deposition of adhering and high quality diamond films is hampered as well. In order to solve these problems, interlayer systems, which act as diffusion barriers for both atomic iron and carbon, are required. Using CrN interlayers, continuous and adherent diamond films are obtained on the high-speed steel, whereas only individual crystallites are observed on the stainless steel due to partial delamination of the initially grown films. Ultrathin Si interlayers are efficient diffusion barriers for Fe but not for C during diamond growth onto steel. The third type of interlayer system is produced by means of pack boriding. The resulting boride layers show a very high surface hardness, which gradually decreases on approaching the bulk. The presence of FeB at the surface results in very high thermal stresses and delamination of the diamond films on both types of steel. If only a Fe2B phase is present, continuous diamond films with low residual stresses are grown on both borided stainless and tool steel. A direct comparison made with the strongly adhering diamond layers on the molybdenum substrates indicates only a slightly inferior adhesion for the diamond coated stainless steel with the CrN interlayer. Using electrochemical polarization studies, the corrosion resistance of blank tool steel in sodium chloride solutions is found to be very low, but is significantly increased by the deposition of protective diamond layers. However, the effect of the applied interlayer systems on the shift of the corrosion potential is very strong PB - [S.l. : s.n.] TI - Hot-filament chemical vapour deposition of diamond onto steel PS - X, 164 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/19264/19264_hotfchvad.pdf?sequence=1 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Gopalakrishnan, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Ramakrishnan, S.S. AU - Meulen, J.J. ter PY - 2003 UR - https://hdl.handle.net/2066/112607 TI - Diffusion-modified boride interlayers for chemical vapour deposition of low-residual-stress diamond films on steel substrates EP - 93 SN - 0040-6090 IS - iss. 1-2 SP - 85 JF - Thin Solid Films VL - vol. 426 DO - http://dx.doi.org/10.1016/S0040-6090(03)00013-0 ER - TY - JOUR AU - Stolk, R.L. AU - Herpen, M. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2003 UR - https://hdl.handle.net/2066/112609 TI - Influence of nitrogen addition on oxyacetylene flame chemical vapor deposition of diamond as studied by solid state techniques and gas phase diagnostics EP - 4921 SN - 0021-8979 IS - iss. 8 SP - 4909 JF - Journal of Applied Physics VL - vol. 93 DO - http://dx.doi.org/10.1063/1.1542691 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/112609/112609.pdf?sequence=1 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2003 UR - https://hdl.handle.net/2066/112612 TI - The applicability of ultra thin silicon films as interlayers for CVD diamond deposition on steels EP - 395 SN - 0031-8965 IS - iss. 2 SP - 383 JF - Physica Status Solidi A-Applied Research VL - vol. 195 DO - http://dx.doi.org/10.1002/pssa.200305947 ER - TY - JOUR AU - Stolk, R.L. AU - Buijnsters, J.G. AU - Schermer, J.J. AU - Teofilov, N. AU - Sauer, R. AU - Fransen, M.J. AU - Meulen, J.J. ter PY - 2003 UR - https://hdl.handle.net/2066/112613 TI - The effect of nitrogen addition during flame deposition of diamond as studied by solid-state techniques EP - 1334 SN - 0925-9635 IS - iss. 8 SP - 1322 JF - Diamond and Related Materials VL - vol. 12 DO - http://dx.doi.org/10.1016/S0925-9635(03)00075-X ER - TY - JOUR AU - Berkelmans, H.W.A. AU - Moeskops, B.W.M. AU - Bominaar, J. AU - Scheepers, P.T.J. AU - Harren, F.J.M. PY - 2003 UR - https://hdl.handle.net/2066/100933 TI - Pharmacokinetics of ethylene in man by on-line laser photoacoustic detection EP - 213 SN - 0041-008X IS - iss. 3 SP - 206 JF - Toxicology and Applied Pharmacology VL - vol. 190 DO - https://doi.org/10.1016/S0041-008X(03)00164-9 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/100933/100933pub.pdf?sequence=3 ER - TY - JOUR AU - Radenovic, D.C. AU - Roij, A.J.A. van AU - Chestakov, D.A. AU - Eppink, A.T.J.B. AU - Meulen, J.J. ter AU - Parker, D.H. AU - Loo, M.P.J. van der AU - Groenenboom, G.C. AU - Greenslade, M.E. AU - Lester, M.I. PY - 2003 UR - https://hdl.handle.net/2066/103947 TI - Photodissociation of the OD radical at 226 and 243 nm EP - 9343 SN - 0021-9606 IS - iss. 18 SP - 9341 JF - Journal of Chemical Physics VL - vol. 119 DO - https://doi.org/10.1063/1.1623175 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/103947/103947.pdf?sequence=1 ER - TY - JOUR AU - Berkelmans, H.W. AU - Moeskops, B.W.M. AU - Bominaar, J. AU - Scheepers, P.T.J. AU - Harren, F.J.M. PY - 2003 UR - https://hdl.handle.net/2066/100934 AB - The pharmacokinetics of ethylene are determined using laser-based photoacoustic detection and a closed chamber setup. Concentration-time data are analyzed using a two-compartment and a physiologically based pharmacokinetic (PBPK) model. Endogenous production was 92 +/- 13 pmol/h/kg for the two-compartment model and 75 +/- 10 pmol/h/kg for the PBPK model. These values agree with previous work at our department but are significantly lower than published values based on gas chromatography. The blood:air partition coefficient in the PBPK model was determined by curve fitting, because simulations based on published values did not agree well with data. Curve fitting gave a value of 0.092 +/- 0.029. The real-time nature and high sensitivity of photoacoustic detection make it a useful addition to gas chromatography in closed chamber studies. TI - Pharmacokinetics of ethylene in man by on-line laser photoacoustic detection. EP - 213 SN - 0041-008X IS - iss. 3 SP - 206 JF - Toxicology and Applied Pharmacology VL - vol. 190 DO - https://doi.org/10.1016/S0041-008X(03)00164-9 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Fleischer, W. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2002 UR - https://hdl.handle.net/2066/112614 TI - CVD diamond deposition on steel using arc-plated chromium nitride interlayers EP - 544 SN - 0925-9635 IS - iss. 3-6 SP - 536 JF - Diamond and Related Materials VL - vol. 11 DO - http://dx.doi.org/10.1016/S0925-9635(01)00628-8 ER - TY - JOUR AU - Buijnsters, J.G. AU - Shankar, P. AU - Enckevort, W.J.P. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2002 UR - https://hdl.handle.net/2066/112618 TI - The effect of nitriding on the diamond film characteristics on chromium substrates EP - 1768 SN - 0925-9635 IS - iss. 10 SP - 1760 JF - Diamond and Related Materials VL - vol. 11 DO - http://dx.doi.org/10.1016/S0925-9635(02)00158-9 ER - TY - GEN AU - Water, W. van de PY - 2001 SN - 9090146660 UR - https://hdl.handle.net/2066/19067 PB - [Nijmegen] : Katholieke Universiteit Nijmegen TI - Stroming in wanorde PS - 28 p. L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/19067/19067_stroinwa.pdf?sequence=1 ER - TY - JOUR AU - Buijnsters, J.G. AU - Bouwelen, F.M. van AU - Schermer, J.J. AU - Enckevort, W.J.P. van AU - Meulen, J.J. ter PY - 2000 UR - https://hdl.handle.net/2066/112620 TI - Chemical vapour deposition of diamond on nitrided chromium using an oxyacetylene flame EP - 345 SN - 0925-9635 IS - iss. 3-6 SP - 341 JF - Diamond and Related Materials VL - vol. 9 DO - http://dx.doi.org/10.1016/S0925-9635(00)00203-X ER - TY - JOUR AU - Stolk, R.L. AU - Herpen, M. van AU - Meulen, J.J. ter AU - Schermer, J.J. PY - 2000 UR - https://hdl.handle.net/2066/112624 TI - Relation between gas phase CN radical distributions, nitrogen incorporation, and growth rate in flame deposition of diamond EP - 3716 SN - 0021-8979 IS - iss. 6 SP - 3708 JF - Journal of Applied Physics VL - vol. 88 DO - http://dx.doi.org/10.1063/1.1287409 L1 - https://repository.ubn.ru.nl/bitstream/handle/2066/112624/112624.pdf?sequence=1 ER - TY - JOUR AU - Stolk, R.L. AU - Herpen, M. van AU - Schermer, J.J. AU - Meulen, J.J. ter PY - 2000 UR - https://hdl.handle.net/2066/112625 TI - The effects of nitrogen addition on flame deposition of diamond EP - 1454 SN - 1540-7489 SP - 1447 JF - Proceedings of the Combustion Institute VL - vol. 28 ER -