Search Results - "Juttula, Harri"

The Effect of Drop Shape, Sensing Volume and Raindrop Size Statistics to the Scattered Field on 300 GHz by Kokkonen, Mikko, Juttula, Harri, Makynen, Anssi, Myllymaki, Sami, Jantunen, Heli

“…Scattering and attenuation properties of rain using various drop models are calculated using Mie theory, the T-matrix method and numerical technique…”
Get full text

Compensation of Aerodynamic Sampling Effects of a Cloud Droplet Instrument by Juttula, Harri J., Kaikkonen, Ville A., Molkoselka, Eero O., Makynen, Anssi J.

“…Precise sampling is a crucial part of the aerosol measurement processes that ideally requires perfectly isokinetic conditions in which particles in the…”
Get full text

Instrument for Measurement of Optical Parameters of Turbid Media by Using Diffuse Reflectance of Laser With Oblique Incidence Angle by Juttula, Harri J., Kananen, Timo P., Makynen, Anssi J.

“…An instrument for simultaneous measurement of absorption and reduced scattering coefficients of optically turbid materials is presented. Determination of the…”
Get full text

UAV Cloud Particle Sensor by Kaikkonen, Ville A., Molkoselka, Eero O., Juttula, Harri J., Makynen, Anssi J.

“…The need for cloud and aerosol measurements is increasing, and new tools are being developed to address the lack of precise cloud particle data. These…”
Get full text

Atmospheric icing meteorological parameter study using field experiments and simulation by Han, Xingbo, Virk, Muhammad, Asif, Hamza, Mäkynen, Anssi, Juttula, Harri, Molkoselkä, Eero, Kaikkonen, Ville A.

“…Abstract Atmospheric icing on ground structures is a concern from design, operation, and safety perspectives. Supercooled water droplets size and liquid water…”
Get full text

Predicting scattering properties of fiber suspensions using Mie theory and probabilistic cross-sectional diameter of fibers by Juttula, Harri J., Törmänen, Matti, Mäkynen, Anssi J.

“…Scattering of visible light by micrometer-scale natural wood fibers is usually treated by assuming fibers to be perfect long cylindrical scatterers. In…”
Get full text

Study of the Aerodynamic Sampling Effects of a Holographic Cloud Droplet Instrument by Juttula, Harri, Kaikkonen, Ville, Makynen, Anssi

“…Computational fluid dynamics and particle tracing simulations are presented for a cloud droplet sensor. Airspeeds and streamlines around the sensor are…”
Get full text

Rain Induced Co-Channel Interference at 60 GHz and 300 GHz Frequencies by Juttula, Harri, Kokkoniemi, Joonas, Lehtomaki, Janne, Makynen, Anssi, Juntti, Markku

“…Results at mm wave frequencies have shown that it is important to evaluate co-channel interference between directional beams that cross each other. Terahertz…”
Get full text

An integrated 9x9 SPAD array with a 10-channel TDC and a CMOS laser diode driver for a wearable time-domain diffuse optics optode by Jansson, Jussi-Pekka, Jahromi, Sahba, Haapalainen, Kalle, Juttula, Harri, Makynen, Anssi, Nissinen, Jan

“…A 9x9 Single-Photon Avalanche Photodiode (SPAD) array with a 10-channel time-to-digital converter and an integrated laser diode driver fabricated in 0.35 µm…”
Get full text

Instrument for measurement of optical parameters of turbid media by using diffuse reflectance of laser with oblique incidence angle by Juttula, Harri J., Kananen, Timo P., Makynen, Anssi J.

“…An instrument for simultaneous measurement of absorption and reduced scattering coefficients of optically turbid materials is presented. Determination of the…”
Get full text

Determination of refractive index of softwood using immersion liquid method by Juttula, H., Makynen, A. J.

“…Immersion liquid method is used to determine refractive indices of wood material. An integrating sphere setup is used to measure optical transmission of liquid…”
Get full text