Results 31 to 40 of about 6,183,214 (282)

Five material tissue decomposition by dual energy computed tomography

Scientific Reports, 2022
The separation of mixtures of substances into their individual components plays an important role in many areas of science. In medical imaging, one method is the established analysis using dual-energy computed tomography. However, when analyzing mixtures
Maximilian E. Lochschmidt, Melina Gassenhuber, Isabelle Riederer, Johannes Hammel, Lorenz Birnbacher, Madleen Busse, Tobias Boeckh-Behrens, Benno Ikenberg, Silke Wunderlich, Friederike Liesche-Starnecker, Jürgen Schlegel, Marcus R. Makowski, Claus Zimmer, Franz Pfeiffer, Daniela Pfeiffer   +14 more
doaj   +1 more source

Evaluation of decomposition kinetics of poly (ether-ether-ketone) by thermogravimetric analysis [PDF]

Materials Research, 2013
The non-isothermal thermogravimetric methods have been used extensively for the determination of kinetic parameters in polymers. The poly (ether ketones) are used as matrix in advanced high performance composites due its high thermal stability, excellent
Gibran da Cunha Vasconcelos, Rogério Lago Mazur, Bruno Ribeiro, Edson Coccieri Botelho, Michelle Leali Costa   +4 more
doaj   +1 more source

Progress of Material Decomposition Algorithms in Dual-energy CT Imaging

CT Lilun yu yingyong yanjiu, 2023
Spectral CT can produce basis materials with different X-ray energies. Subsequently, the generated basis materials can be used for qualitative and quantitative evaluation of tissue components and contrast agent distribution.
Qiao GUO, Xufeng YAO
doaj   +1 more source

A structural decomposition of global Raw Material Consumption [PDF]

Ecological Economics, 2015
Between 1995 and 2008, the global extraction of biomass, fossil fuels, and minerals grew from 48 to 69 billion metric tons. This study investigates how changing consumption and investment patterns affected the aforementioned increase. A series of Structural Decomposition Analyses at a global level as well as for 38 major economies is conducted.
openaire   +4 more sources

Application and Development of Spectral CT in Target Delineation for Lung Cancer Radiotherapy

Diagnostics
Lung cancer ranks first among all malignancies in both incidence and mortality worldwide, and precise target volume delineation is the key to ensuring the efficacy and safety of radiotherapy.
Shanshan Zhang, Bijing Mao
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Comparison of bone mineral density quantification in dogs using spectral detector computed tomography versus phantom-based conventional computed tomography

Frontiers in Veterinary Science
IntroductionThe generation of virtual monoenergetic images using spectral detector computed tomography (SDCT) may facilitate the measurement of bone mineral density (BMD) without the requirement of a phantom. This study has two primary objectives: (1) To
Alina Hörmann, Tarek Neubert, Graeme Campbell, Adriano Wang-Leandro, Michael Pees, Christina Strube, Kristina Merhof   +6 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

FEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Decomposition and ergosterol content of the moss Hylocomium splendens litter under various climatic conditions [PDF]

, 2001
P(論文)We examined the differences in the decomposition rate and fungal biomass in the litter of Hylocomium splendens among forests under different climatic conditions. The samples were collected from one boreal forest in Canada, three subalpine forests on
Nakane Kaneyuki, Tanaka,Keiko, Nakatsubo,Takayuki, Uchida,Masaki, Horikoshi,Takao   +4 more
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source