Blar i Brage NMBU på forfatter "Kohler, Achim"
-
Comprehensive phenotypic characterization of newly isolated cold-adapted bacteria from Antarctic temporary meltwater ponds
Akulava, Volha (PhD Thesis;2024:5, Doctoral thesis, 2024)Antarctic meltwater ponds are unique unexplored biotopes characterized by a high complexity of microbiota and affected by ever-changing ecological factors. Cold-adapted bacteria isolated from Antarctic meltwater ponds ... -
Deep convolutional neural network recovers pure absorbance spectra from highly scatter‐distorted spectra of cells
Magnussen, Eirik Almklov; Solheim, Johanne Heitmann; Blazhko, Uladzislau; Tafintseva, Valeria; Tøndel, Kristin; Liland, Kristian Hovde; Dzurendova, Simona; Shapaval, Volha; Sandt, Christophe; Borondics, Ferenc; Kohler, Achim (Peer reviewed; Journal article, 2020) -
Deep learning-assisted analysis of infrared microspectroscopic data for enhanced chemical and optical characterization
Magnussen, Eirik Almklov (PhD thesis;2024:15, Doctoral thesis, 2024)Infrared (IR) spectroscopy is an accurate, rapid and non-destructive analytical technique widely applied across diverse scientific disciplines. It records an absorbance spectrum that quantifies the loss of intensity as IR ... -
Deep learning-enabled Inference of 3D molecular absorption distribution of biological cells from IR spectra
Magnussen, Eirik Almklov; Zimmermann, Boris; Blazhko, Uladzislau; Dzurendová, Simona; Dupuy--Galet, Benjamin Xavier; Byrtusova, Dana; Muthreich, Florian; Tafintseva, Valeria; Liland, Kristian Hovde; Tøndel, Kristin; Shapaval, Volha; Kohler, Achim (Peer reviewed; Journal article, 2022)Infrared spectroscopy delivers abundant information about the chemical composition, as well as the structural and optical properties of intact samples in a non-destructive manner. We present a deep convolutional neural ... -
Deep learning-enabled Inference of 3D molecular absorption distribution of biological cells from IR spectra
Magnussen, Eirik Almklov; Zimmermann, Boris; Blazhko, Uladzislau; Dzurendová, Simona; Dupuy--Galet, Benjamin Xavier; Byrtusova, Dana; Muthreich, Florian; Tafintseva, Valeria; Liland, Kristian Hovde; Tøndel, Kristin; Shapaval, Volha; Kohler, Achim (Peer reviewed; Journal article, 2022) -
Discrimination of grass pollen of different species by FTIR spectroscopy of individual pollen grains
Diehn, Sabrina; Zimmermann, Boris; Tafintseva, Valeria; Bağcıoğlu, Murat; Kohler, Achim; Ohlson, Mikael; Fjellheim, Siri; Kneipp, Janina (Peer reviewed; Journal article, 2020) -
Dry film FTIR spectroscopy for in-process food quality measurements
Kafle, Bijay (PhD Thesis;2024:11, Doctoral thesis, 2024)Proteins are essential biological nutrients, and the global demand for protein-rich food and feed is increasing with population growth. To promote sustainability, industries are putting efforts to optimize resource ... -
Evaluation and optimisation of direct transesterification methods for the assessment of lipid accumulation in oleaginous filamentous fungi
Langseter, Anne Marie; Dzurendova, Simona; Shapaval, Volha; Kohler, Achim; Ekeberg, Dag; Zimmermann, Boris (Journal article; Peer reviewed, 2021) -
An exact ray model for oblique incident light on planar films
Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ... -
An exact ray model for oblique incident light on planar films
Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ... -
Exact ray theory for the calculation of the optical generation rate in optically thin solar cells
Brandsrud, Maren Anna; Seim, Eivind; Lukacs, Rozalia; Kohler, Achim; Marstein, Erik Stensrud; Olsen, Espen; Blümel, Reinhold (Journal article; Peer reviewed, 2018)There is a profound duality between rays and waves. In fact, 70 years ago, in the context of quantum mechanics, Feynman showed that rays, properly equipped with phases and correctly summed, provide exact solutions of the ... -
Exploring dry-film ftir spectroscopy to characterize milk composition and subclinical ketosis throughout a cow’s lactation
Rachah, Amira; Reksen, Olav; Tafintseva, Valeria; Stehr, Felicia Judith Marie; Rukke, Elling-Olav; Prestløkken, Egil; Martin, Adam Dunstan; Kohler, Achim; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021) -
Exploring Dry-Film FTIR Spectroscopy to Characterize Milk Composition and Subclinical Ketosis throughout a Cow’s Lactation
Rachah, Amira; Reksen, Olav; Tafintseva, Valeria; Stehr, Felicia Judith Marie; Rukke, Elling-Olav; Prestløkken, Egil; Martin, Adam Dunstan; Kohler, Achim; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021)The use of technologies for measurements of health parameters of individual cows may ensure early detection of diseases and maximization of individual cow and herd potential. In the present study, dry-film Fourier transform ... -
Extended multiplicative signal correction for FTIR spectral quality test and pre-processing of infrared imaging data
Tafintseva, Valeria; Shapaval, Volha; Smirnova, Margarita; Kohler, Achim (Peer reviewed; Journal article, 2019) -
Fourier transform infrared spectral data as a tool to predict energy balance, energy- and dry matter intake in lactating dairy cows
Rachah, Amira; Reksen, Olav; Afseth, Nils Kristian; Tafintseva, Valeria; Ferneborg, Sabine; Martin, Adam Dunstan; Kohler, Achim; Prestløkken, Egil (Peer reviewed; Journal article, 2020) -
FTIR spectroscopy as a unified method for simultaneous analysis of intra- and extracellular metabolites in high-throughput screening of microbial bioprocesses
Kosa, Gergely; Shapaval, Volha; Kohler, Achim; Zimmermann, Boris (Journal article; Peer reviewed, 2017) -
FTIR spectroscopy for evaluation and monitoring of lipid extraction efficiency for oleaginous fungi
Forfang, Kristin; Zimmermann, Boris; Kòsa, Gergely; Kohler, Achim; Shapaval, Volha (Journal article; Peer reviewed, 2017)To assess whether Fourier Transform Infrared (FTIR) spectroscopy could be used to evaluate and monitor lipid extraction processes, the extraction methods of Folch, Bligh and Lewis were used. Biomass of the oleaginous fungi ... -
A Fully Automated Robot for the Preparation of Fungal Samples for FTIR Spectroscopy Using Deep Learning
Xiong, Ya; Shapaval, Volha; Kohler, Achim; Li, Jichun; From, Pål Johan (Peer reviewed; Journal article, 2019)Manual preparation of fungal samples for Fourier Transform Infrared (FTIR) spectroscopy involves sample washing, homogenization, concentration and spotting, which requires time-consuming and repetitive operations, making ... -
Genetic variants associated with two major bovine milk fatty acids offer opportunities to breed for altered milk fat composition
Knutsen, Tim Martin; Olsen, Hanne Gro; Ketto, Isaya Appelesy; Sundsaasen, Kristil Kindem; Kohler, Achim; Tafintseva, Valeria; Svendsen, Morten; Kent, Matthew Peter; Lien, Sigbjørn (Peer reviewed; Journal article, 2022) -
Genome-wide association mapping for milk fat composition and fine mapping of a QTL for de novo synthesis of milk fatty acids on bovine chromosome 13
Olsen, Hanne Gro; Knutsen, Tim Martin; Kohler, Achim; Svendsen, Morten; Gidskehaug, Lars Halvor; Grove, Harald; Nome, Torfinn; Sodeland, Marte; Sundsaasen, Kristil Kindem; Kent, Matthew Peter; Martens, Harald; Lien, Sigbjørn (Journal article; Peer reviewed, 2017)