Search Results - "Lehtinen, Markku"
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Gaussian Markov Random Field Priors in Ionospheric 3-D Multi-Instrument Tomography
Published in IEEE transactions on geoscience and remote sensing (01-12-2018)“…In ionospheric tomography, the atmospheric electron density is reconstructed from different electron density related measurements, most often from ground-based…”
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2
Effects of Scots pine paternal genotypes of two contiguous seed orchards on the budset and frost hardening of first-year progeny
Published in Silva fennica (Helsinki, Finland : 1967) (2017)“…In Scots pine ( L.), it has been shown that the parental conditions have a role in the phenological variation among first-year seedlings. For this reason, it…”
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3
KAIRA: The Kilpisjärvi Atmospheric Imaging Receiver Array-System Overview and First Results
Published in IEEE transactions on geoscience and remote sensing (01-03-2015)“…The Kilpisjärvi Atmospheric Imaging Receiver Array (KAIRA) is a dual array of omnidirectional VHF radio antennas located near Kilpisjärvi, Finland. It is…”
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4
Toxicity of Fatty Acid autoxidation products: highest anti-microbial toxicity in the initial oxidative phase
Published in Molecules (Basel, Switzerland) (01-01-2015)“…The autoxidation-degradation processes of polyunsaturated fatty acids give rise to toxic products, and the relative toxicity at different stages of the process…”
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Bayesian statistical ionospheric tomography improved by incorporating ionosonde measurements
Published in Atmospheric measurement techniques (28-04-2016)“…We validate two-dimensional ionospheric tomography reconstructions against EISCAT incoherent scatter radar measurements. Our tomography method is based on…”
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6
Polyphase-coded incoherent scatter measurements at Millstone Hill
Published in Radio science (01-09-2013)“…We report first results of polyphase‐coded incoherent scatter measurements at Millstone Hill. To our knowledge, these are the first incoherent scatter…”
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Isän genotyypin vaikutus yksivuotisen männyntaimen päätesilmun muodostumiseen ja talvenkestävyyden kehittymiseen
Published in Metsätieteen aikakauskirja (01-01-2017)Get full text
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Mismatched Filtering of Aperiodic Quadriphase Codes
Published in IEEE transactions on information theory (01-04-2008)“…Matched filtering of quadriphase coded radar signals creates unwanted sidelobes, which may mask important information. This correspondence presents a method of…”
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9
Optimal True Time Delay Filter With Application to FPGA Firmware‐Based Phased Array Radar Signal Processing
Published in Radio science (01-09-2019)“…The European Incoherent Scatter‐3D phased array radar system will be largely based on field‐programmable gate array (FPGA) firmware electronics that carry out…”
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10
A new incoherent scatter technique in the EISCAT Svalbard Radar
Published in Radio science (01-08-2002)“…A special incoherent scatter technique in the European Incoherent Scatter (EISCAT) Svalbard Radar (ESR) was tested in November 1999. After the 70‐MHz IF stage…”
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11
Radar baud length optimisation of spatially incoherent time-independent targets
Published in Journal of atmospheric and solar-terrestrial physics (01-12-2013)“…While it may be a general belief that the optimal baud length for radar measurements of range extended targets should be close to the desired resolution, this…”
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12
Substituted Salicylaldehydes as Potential Antimicrobial Drugs: Minimal Inhibitory and Microbicidal Concentrations
Published in Zeitschrift für Naturforschung C. A journal of biosciences (01-12-2011)“…Substituted salicylaldehydes are potent antibacterial and antifungal agents and may have chemotherapeutic potential. In the clinical setting, the minimal…”
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13
Multi-static spatial and angular studies of polar mesospheric summer echoes combining MAARSY and KAIRA
Published in Atmospheric chemistry and physics (06-07-2018)“…Polar mesospheric summer echoes (PMSEs) have been long associated with noctilucent clouds (NLCs). For large ice particles sizes and relatively high ice…”
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14
Antimicrobial Activity of Formylchromones: Detection by a Micro-Scale Method
Published in Zeitschrift für Naturforschung C. A journal of biosciences (01-12-2011)“…We report the antimicrobial activity of formylchromones. These compounds are remote structural analogues of nalidixic acid and quinolone antibiotics, and their…”
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General incoherent scatter analysis and GUISDAP
Published in Journal of atmospheric and terrestrial physics (1996)“…In modern incoherent scatter measurements very complicated coding schemes are used to achieve the necessary statistical accuracy in the measurements. The…”
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KAIRA: The Kilpisjaervi Atmospheric Imaging Receiver Array-System Overview and First Results
Published in IEEE transactions on geoscience and remote sensing (01-03-2015)“…The Kilpisjaervi Atmospheric Imaging Receiver Array (KAIRA) is a dual array of omnidirectional VHF radio antennas located near Kilpisjaervi, Finland. It is…”
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Antimicrobial Activity of Formylchromones: Detection by a Micro-Scale Method
Published in Zeitschrift für Naturforschung C. A journal of biosciences (01-11-2011)Get full text
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Kilpisjärvi Atmospheric Imaging Receiver Array - First results
Published in 2013 IEEE International Symposium on Phased Array Systems and Technology (01-10-2013)“…The Kilpisjärvi Atmospheric Imaging Receiver Array (KAIRA) is a dual antenna array radio receiver based on LOFAR technology. The main purpose of the system is…”
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Conference Proceeding -
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A Proposed Solution to the Range–Doppler Dilemma of Weather Radar Measurements by Using the SMPRF Codes, Practical Results, and a Comparison with Operational Measurements
Published in Journal of applied meteorology (1988) (01-09-2005)“…Based on the measurement principles used on incoherent scatter radars, the authors have developed the Simultaneous Multiple Pulse Repetition Frequency (SMPRF)…”
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Drugs for Parkinson's disease reduce tremor induced by physostigmine
Published in Naunyn-Schmiedeberg's archives of pharmacology (01-07-1983)Get full text
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