Search Results - "Jaatinen, A"

Greenhouse gas reduction potential by producing electricity from biogas engine waste heat using organic Rankine cycle by Uusitalo, A., Uusitalo, V., Grönman, A., Luoranen, M., Jaatinen-Värri, A.

“…Organic Rankine cycles have been identified as a suitable technological option for converting low-grade heat into electricity with relatively high efficiency,…”
Get full text

Diffusion-controlled anisotropic growth of stable and metastable crystal polymorphs in the phase-field crystal model by Tegze, G, Gránásy, L, Tóth, G I, Podmaniczky, F, Jaatinen, A, Ala-Nissila, T, Pusztai, T

“…We use a simple density functional approach on a diffusional time scale, to address freezing to the body-centered cubic (bcc), hexagonal close-packed (hcp),…”
Get full text

A synthesis of cloud condensation nuclei counter (CCNC) measurements within the EUCAARI network by Paramonov, M, Kerminen, V-M, Gysel, M, Aalto, P P, Andreae, M O, Asmi, E, Baltensperger, U, Bougiatioti, A, Brus, D, Frank, G P

“…Cloud condensation nuclei counter (CCNC) measurements performed at 14 locations around the world within the European Integrated project on Aerosol Cloud…”
Get full text

Centrifugal compressor efficiency improvement and its environmental impact in waste water treatment by Viholainen, J., Grönman, K., Jaatinen-Värri, A., Grönman, A., Ukkonen, P., Luoranen, M.

“…•Energy performance and environmental impact of the compressor operation was studied.•Diffusers can offer significant energy savings in aeration compressor…”
Get full text

Atmospheric submicron aerosol composition and particulate organic nitrate formation in a boreal forestland–urban mixed region by Hao, L. Q, Kortelainen, A, Romakkaniemi, S, Portin, H, Jaatinen, A, Leskinen, A, Komppula, M, Miettinen, P, Sueper, D, Pajunoja, A, Smith, J. N, Lehtinen, K. E. J, Worsnop, D. R, Laaksonen, A, Virtanen, A

“…The Puijo aerosol–cloud observation station is a unique measurement site for its location in the mixed region between the boreal forestland and the…”
Get full text

Relationships between particles, cloud condensation nuclei and cloud droplet activation during the third Pallas Cloud Experiment by Anttila, T, Brus, D, Jaatinen, A, Hyvärinen, A.-P, Kivekäs, N, Romakkaniemi, S, Komppula, M, Lihavainen, H

“…Concurrent measurement of aerosols, cloud condensation nuclei (CCN) and cloud droplet activation were carried out as a part of the third Pallas Cloud…”
Get full text

Mass yields of secondary organic aerosols from the oxidation of α-pinene and real plant emissions by Hao, L. Q., Romakkaniemi, S., Yli-Pirilä, P., Joutsensaari, J., Kortelainen, A., Kroll, J. H., Miettinen, P., Vaattovaara, P., Tiitta, P., Jaatinen, A., Kajos, M. K., Holopainen, J. K., Heijari, J., Rinne, J., Kulmala, M., Worsnop, D. R., Smith, J. N., Laaksonen, A.

“…Biogenic volatile organic compounds (VOCs) are a significant source of global secondary organic aerosol (SOA); however, quantifying their aerosol forming…”
Get full text

The effect of local sources on particle size and chemical composition and their role in aerosol–cloud interactions at Puijo measurement station by Portin, H, Leskinen, A, Hao, L, Kortelainen, A, Miettinen, P, Jaatinen, A, Laaksonen, A, Lehtinen, K. E. J, Romakkaniemi, S, Komppula, M

“…Interactions between aerosols and liquid water clouds were studied during autumns 2010–2011 at a semiurban measurement station on Puijo tower in Kuopio,…”
Get full text

Small Gold Nanoparticles as Crystallization “Catalysts”: Effect of Seed Size and Concentration on Au-ZnO Hetero Nanoparticles by Fernando, Joseph F. S, Shortell, Matthew P, Vernon, Kristy C, Jaatinen, Esa A, Waclawik, Eric R

“…This work reports the effect of seed nanoparticle size and concentration effects on heterogeneous crystal nucleation and growth in colloidal suspensions. We…”
Get full text

Ammonium nitrate evaporation and nitric acid condensation in DMT CCN counters by Romakkaniemi, S, Jaatinen, A, Laaksonen, A, Nenes, A, Raatikainen, T

“…The effect of inorganic semivolatile aerosol compounds on the cloud condensation nucleus (CCN) activity of aerosol particles was studied by using a…”
Get full text

Changes in the production rate of secondary aerosol particles in Central Europe in view of decreasing SO2 emissions between 1996 and 2006 by K. E. J. Lehtinen, H. Korhonen, A. Wiedensohler, A. Jaatinen, G. Spindler, B. Wehner, A. Asmi, S. Mikkonen, J. Joutsensaari, A. Hamed, W. Birmili, A. Laaksonen

“…In anthropogenically influenced atmospheres, sulphur dioxide (SO2) is the main precursor of gaseous sulphuric acid (H2SO4), which in turn is a main precursor…”
Get full text

Thermodynamics of bcc metals in phase-field-crystal models by Jaatinen, A, Achim, C V, Elder, K R, Ala-Nissila, T

“…We examine the influence of different forms of the free-energy functionals used in the phase-field-crystal (PFC) model, and compare them with the second-order…”
Get full text

Near Infrared Light Induced Radical Polymerization in Water by Neidinger, Philipp, Davis, Joshua, Voll, Dominik, Jaatinen, Esa A., Walden, Sarah L., Unterreiner, Andreas N., Barner‐Kowollik, Christopher

“…We introduce a gold nanorod (AuNR) driven methodology to induce free radical polymerization in water with near infrared light (800 nm). The process exploits…”
Get full text

Energy Transmission of Vortex Beams Through 3rd Order Intensity Dependent Nonlinear Optical Limiters by Donaldson, Robert E., Walden, Sarah L., Jaatinen, Esa A.

“…Third order optical limiting utilizes nonlinear absorption or scatter to preferentially reduce the optical throughput of intense light through a medium. While…”
Get full text

Eighth-order phase-field-crystal model for two-dimensional crystallization by Jaatinen, A, Ala-Nissila, T

“…We present a derivation of the recently proposed eighth-order phase-field crystal model [A. Jaatinen, Phys. Rev. E 80, 031602 (2009)] for the crystallization…”
Get full text

Controlling Au Photodeposition on Large ZnO Nanoparticles by Fernando, Joseph F. S, Shortell, Matthew P, Noble, Christopher J, Harmer, Jeffrey R, Jaatinen, Esa A, Waclawik, Eric R

“…This study investigated how to control the rate of photoreduction of metastable AuCl2 – at the solid–solution interface of large ZnO nanoparticles (NPs)…”
Get full text

Using pulse transit delay in Z-scan to discriminate between excited-state absorption and other nonlinear processes in ZnO nanocones by Shortell, Matthew P, Jaatinen, Esa A, Chang, Jin, Waclawik, Eric R

“…We report a new approach that uses the single beam Z-scan technique, to discriminate between excited state absorption (ESA) and two and three photon nonlinear…”
Get full text

Accurate determination of nonlinear refraction in ZnO and Au composite nanostructures by Walden, Sarah L., Fernando, Joseph F. S., Shortell, Matthew P., Jaatinen, Esa A.

“…It is now well established that the nonlinear optical properties of ZnO nanoparticles can be significantly enhanced by coupling them to metallic nanoparticles…”
Get full text

Multi-angle fluorometer technique for the determination of absorption and scattering coefficients of subwavelength nanoparticles by Shortell, Matthew P, Hewins, Rodney A, Fernando, Joseph F S, Walden, Sarah L, Waclawik, Eric R, Jaatinen, Esa A

“…A thorough analysis of the resonance light scattering (RLS) technique for quantitative scattering measurements of subwavelength nanoparticles is reported. The…”
Get full text

Accurate Measurement of the Molecular Thickness of Thin Organic Shells on Small Inorganic Cores Using Dynamic Light Scattering by Shortell, Matthew P, Fernando, Joseph F. S, Jaatinen, Esa A, Waclawik, Eric R

“…Dynamic light scattering (DLS) has become a primary nanoparticle characterization technique with applications from material characterization to biological and…”
Get full text