Search Results - "Kolli, Tanja"

4D modeling of soil surface during excavation using a solid-state 2D profilometer mounted on the arm of an excavator by Niskanen, Ilpo, Immonen, Matti, Makkonen, Tomi, Keränen, Pekka, Tyni, Pekka, Hallman, Lauri, Hiltunen, Mikko, Kolli, Tanja, Louhisalmi, Yrjö, Kostamovaara, Juha, Heikkilä, Rauno

“…The aim of this research is to create a 4D point cloud map from a trench through a solid-state 2D profilometer. The profilometer is integrated with an 8.5-ton…”
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Overview of the Nordic Challenges for Unmanned Aircraft Systems by Kramar, Vadim, Hinkula, Henry, Erkkila, Juha, Kolli, Tanja, Rauhala, Anssi, Roning, Juha

“…The Nordic countries have an intermediate climate with actual four seasons. The weather here varies from summer hot to winter, freezing with rain and snow and…”
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Microstructural Characteristics of Vehicle-Aged Heavy-Duty Diesel Oxidation Catalyst and Natural Gas Three-Way Catalyst by Tomi Kanerva, Mari Honkanen, Tanja Kolli, Olli Heikkinen, Kauko Kallinen, Tuomo Saarinen, Jouko Lahtinen, Eva Olsson, Riitta L. Keiski, Minnamari Vippola

“…Techniques to control vehicle engine emissions have been under increasing need for development during the last few years in the more and more strictly…”
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Non-Visual Sensing of Metallic Pavement Markers From a Moving Vehicle by Niskanen, Ilpo, Kolli, Tanja, Immonen, Matti, Heikkila, Rauno, Merisalo, Virve, Tyni, Pekka, Leviakangas, Pekka

“…Snow and ice covering paved surfaces cause problems for roads and other vehicles operating in cold regions. There are notable risks for road accidents and…”
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Deactivation of Pt/SiO2-ZrO2 diesel oxidation catalysts by sulphur, phosphorus and their combinations by Väliheikki, Ari, Kärkkäinen, Marja, Honkanen, Mari, Heikkinen, Olli, Kolli, Tanja, Kallinen, Kauko, Huuhtanen, Mika, Vippola, Minnamari, Lahtinen, Jouko, Keiski, Riitta L.

“…The CO and C3H6 light-off temperatures (T90) over fresh, SW-, PW-, and PSW-treated Pt/SiO2-ZrO2 catalysts. [Display omitted] •Pt/SiO2-ZrO2 catalyst was found…”
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Particle and NOx emissions of a non-road diesel engine with an SCR unit: The effect of fuel by Pietikäinen, Mari, Väliheikki, Ari, Oravisjärvi, Kati, Kolli, Tanja, Huuhtanen, Mika, Niemi, Seppo, Virtanen, Sampo, Karhu, Toomas, Keiski, Riitta L.

“…Diesel engines are challenged to reduce their emissions. Nitrogen oxides (NOx), hydrocarbons, particulate matter and carbon dioxide are most important…”
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Activity Enhancement of W–CeZr Oxide Catalysts by SO2 Treatment in NH3-SCR by Väliheikki, Ari, Kolli, Tanja, Huuhtanen, Mika, Maunula, Teuvo, Keiski, Riitta L.

“…The impact of sulphur and hydrothermal aging on W–CeZr and CeZr catalysts was investigated. Sulphur treatments for W–CeZr and CeZr were done in the absence and…”
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Selective catalytic reduction of NOx by hydrogen (H2-SCR) on WOx-promoted CezZr1-zO2 solids by Väliheikki, Ari, Petallidou, Klito C., Kalamaras, Christos M., Kolli, Tanja, Huuhtanen, Mika, Maunula, Teuvo, Keiski, Riitta L., Efstathiou, Angelos M.

“…•H2-SCR of NOx over W-promoted CezZr1-zO2 solids.•Specific rate of H2-SCR per surface area is significantly larger in Zr-rich than Ce-rich support…”
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Noble Metal/CNT Based Catalysts in NH3 and EtOH Assisted SCR of NO by Valtanen, Anna, Huuhtanen, Mika, Rautio, Anne-Riikka, Kolli, Tanja, Kordás, Krisztián, Keiski, Riitta L.

“…Platinum (Pt), palladium (Pd/PdO), and rhodium (Rh) decorated carbon nanotube (CNT) based catalysts were prepared, characterized and their activity was tested…”
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Deactivation of Pt/SiO^sub 2^-ZrO^sub 2^ diesel oxidation catalysts by sulphur, phosphorus and their combinations by Väliheikki, Ari, Kärkkäinen, Marja, Honkanen, Mari, Heikkinen, Olli, Kolli, Tanja, Kallinen, Kauko, Huuhtanen, Mika, Vippola, Minnamari, Lahtinen, Jouko, Keiski, Riitta L

“…The impact of sulphur, phosphorus and water and their co-exposure on a monolith-type Pt/SiO2-ZrO2 diesel oxidation catalyst was investigated. The accelerated…”
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The Effect of Phosphorus Exposure on Diesel Oxidation Catalysts—Part I: Activity Measurements, Elementary and Surface Analyses by Kärkkäinen, Marja, Kolli, Tanja, Honkanen, Mari, Heikkinen, Olli, Huuhtanen, Mika, Kallinen, Kauko, Lepistö, Toivo, Lahtinen, Jouko, Vippola, Minnamari, Keiski, Riitta L.

“…The effects of phosphorus poisoning on the activity of PtPd and Pt diesel oxidation catalysts and on the activity of the support material were investigated…”
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Accelerated deactivation studies of the natural-gas oxidation catalyst—Verifying the role of sulfur and elevated temperature in catalyst aging by Honkanen, Mari, Kärkkäinen, Marja, Kolli, Tanja, Heikkinen, Olli, Viitanen, Ville, Zeng, Lunjie, Jiang, Hua, Kallinen, Kauko, Huuhtanen, Mika, Keiski, Riitta L., Lahtinen, Jouko, Olsson, Eva, Vippola, Minnamari

“…[Display omitted] •In thermal aging, grown particles with Pt/Pd core and PdO shell formed.•Al2(SO4)3 formed near small PtPd particles during S-treatment.•With…”
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The Effect of Phosphorus Exposure on Diesel Oxidation Catalysts—Part II: Characterization of Structural Changes by Transmission Electron Microscopy by Honkanen, Mari, Kärkkäinen, Marja, Heikkinen, Olli, Kallinen, Kauko, Kolli, Tanja, Huuhtanen, Mika, Lahtinen, Jouko, Keiski, Riitta L., Lepistö, Toivo, Vippola, Minnamari

“…Phosphorus poisoning and its effect on the diesel oxidation catalysts morphology was studied by transmission electron microscopy (TEM). The studied catalyst…”
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The activity of Pt/Al2O3 diesel oxidation catalyst after sulphur and calcium treatments by KOLLI, Tanja, KANERVA, Tomi, HUUHTANEN, Mika, VIPPOLA, Minnamari, KALLINEN, Kauko, KINNUNEN, Toni, LEPISTÖ, Toivo, LAHTINEN, Jouko, KEISKI, Riitta L

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Particle and NO sub(x) emissions of a non-road diesel engine with an SCR unit: The effect of fuel by Pietikaeinen, Mari, Vaeliheikki, Ari, Oravisjaervi, Kati, Kolli, Tanja, Huuhtanen, Mika, Niemi, Seppo, Virtanen, Sampo, Karhu, Toomas, Keiski, Riitta L

“…Diesel engines are challenged to reduce their emissions. Nitrogen oxides (NO sub(x)), hydrocarbons, particulate matter and carbon dioxide are most important…”
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Selective catalytic reduction of NO sub(x) by hydrogen (H sub(2)-SCR) on WO sub(x)-promoted Ce sub(z)Zr sub(1-z)O sub(2 ) solids by Valiheikki, Ari, Petallidou, Klito C, Kalamaras, Christos M, Kolli, Tanja, Huuhtanen, Mika, Maunula, Teuvo, Keiski, Riitta L, Efstathiou, Angelos M

“…The selective catalytic reduction of NO sub(x) by H sub(2) (H sub(2)-SCR) under strongly oxidizing conditions (520ppm NO sub(x)/1% H sub(2)/5% O sub(2)/10% CO…”
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Selective catalytic reduction of NO by hydrogen (H2-SCR) on WO -promoted Ce Zr1-O2 solids by Väliheikki, Ari, Petallidou, Klito C., Kalamaras, Christos M., Kolli, Tanja, Huuhtanen, Mika, Maunula, Teuvo, Keiski, Riitta L., Efstathiou, Angelos M.

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The Effect of Biofuel Originated Potassium and Sodium on the NH3-SCR Activity of Fe–ZSM-5 and W–ZSM-5 Catalysts by Väliheikki, Ari, Kolli, Tanja, Huuhtanen, Mika, Maunula, Teuvo, Kinnunen, Toni, Keiski, Riitta L.

“…The effect of potassium, sodium and water on Fe–ZSM-5, W–ZSM-5 and ZSM-5 catalysts was investigated. Catalysts were characterized by several techniques and…”
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Deactivation of Diesel Oxidation Catalysts by Sulphur in Laboratory and Engine-Bench Scale Aging by Kärkkäinen, Marja, Honkanen, Mari, Viitanen, Ville, Kolli, Tanja, Valtanen, Anna, Huuhtanen, Mika, Kallinen, Kauko, Vippola, Minnamari, Lepistö, Toivo, Lahtinen, Jouko, Keiski, Riitta L.

“…The activity of sulphur–water- and water-treated PtPd/Al 2 O 3 - and Pt/Al 2 O 3 -based monolith catalysts was investigated. The catalysts were characterized…”
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The Effect of Sulphur and Water Treatments on the Performance of Pd/β-Zeolite Diesel Oxidation Catalysts by Kolli, Tanja, Huuhtanen, Mika, Kanerva, Tomi, Vippola, Minnamari, Kallinen, Kauko, Kinnunen, Toni, Lepistö, Toivo, Lahtinen, Jouko, Keiski, Riitta L.

“…Sulphur, sulphur-water, and water pretreatments were done to find out the effect of these compounds on a diesel oxidation Pd/β-zeolite catalyst and β-zeolite…”
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