Results 71 to 80 of about 891,565 (361)

Studying and Calculating the Radiation Damage Caused by the Solar Radiation Spectrum in the Crystal Structure of Semiconductor Components [PDF]

فصلنامه علوم و فناوری فضایی, 2013
Space radiation environment has concerned about proper performance of electronic systems and equipment used in the space due to a variety of space radiations. The radiation hardening techniques are required to all parts of the system in such environment.
A. Esmaeilian, S. A. H Feghhi, H. Jafari, A. Pahlavan   +3 more
doaj  

Modeling of Ionization in a Spherical Surface Ionizer

Acta Physica Polonica A, 2011
A Monte Carlo method-based model of a hot cavity surface ion source with a spherically shaped ionizer is presented. A numerical code enables studies of ion source efficiency as a function of an extraction voltage, geometry of the ionizer and its temperature, the size of extraction aperture and many other factors.
openaire   +2 more sources

Gut alterations in a chronic kidney disease rat model with diet‐induced vascular calcification

FEBS Open Bio, EarlyView.
Chronic kidney disease (CKD) patients often suffer from intestinal and/or mineral and bone disorders. Using a rat model, we showed that uremic vascular calcification is associated with gut barrier alterations (decreased gut mucus production and Nlrp6 gene expression, increased gut inflammation), and plasma retention of gut‐origin uremic toxins (indoxyl
Piotr Bartochowski, Irene Cortijo, Shruti Bhargava, Bernard Jover, Fabrice Raynaud, Juliana H Boukhaled, Anne‐Dominique Lajoix, Vera Jankowski, Joachim Jankowski, Magali Cordaillat‐Simmons, Àngel Argilés, Nathalie Gayrard, Flore Duranton, Jonas Laget   +13 more
wiley   +1 more source

GDP‐fucose transporter SLC35C1: a potential regulatory role in cytosolic GDP‐fucose and fucosylated glycan synthesis

FEBS Open Bio, EarlyView.
The inactivation of SLC35C1 (GDP‐fucose transporter) and enzymes involved in GDP‐fucose biosynthesis was studied. Fucose supplementation increases the level of GDP‐fucose to abnormal, millimolar values in the absence of the TSTA3 protein and SLC35C1 in contrast to the GMDS/SLC35C1 double mutant.
Edyta Skurska, Mariusz Olczak
wiley   +1 more source

Interaction of class III cellobiose dehydrogenase with lytic polysaccharide monooxygenase

FEBS Open Bio, EarlyView.
The activity of lytic polysaccharide monooxygenase (LPMO) is supported by its auxiliary enzyme cellobiose dehydrogenase (CDH). The catalytic activity of both enzymes is coupled by electron transfer and a cyclic cascade generating substrates for both enzymes – hydrogen peroxide for LPMO and oxidized and non‐oxidized cellobiose and cello‐oligosaccharide ...
Angela Giorgianni, Florian Csarman, Peicheng Sun, Mirjam Kabel, Roland Ludwig   +4 more
wiley   +1 more source

Kinetic evaluation of the solvolysis of isobutyl chloro- and chlorothioformate esters

Beilstein Journal of Organic Chemistry, 2011
The specific rates of solvolysis of isobutyl chloroformate (1) are reported at 40.0 °C and those for isobutyl chlorothioformate (2) are reported at 25.0 °C, in a variety of pure and binary aqueous organic mixtures with wide ranging nucleophilicity and ...
Malcolm J. D’Souza, Matthew J. McAneny, Dennis N. Kevill, Jin Burm Kyong, Song Hee Choi   +4 more
doaj   +1 more source

Simulation of Radiation Damage for Silicon Drift Detector

Sensors, 2019
Silicon drift detector with high sensitivity and energy resolution is an advanced detector which is suitable to be used in deep space detection. To study and reveal the radiation damage of the silicon drift detector (SDD) in a deep-space environment ...
Yang Liu, Tengfei Zhu, Jianxi Yao, Xiaoping Ouyang   +3 more
doaj   +1 more source

Principles of Electrospray Ionization [PDF]

Molecular & Cellular Proteomics, 2011
Electrospray ionization is today the most widely used ionization technique in chemical and biochemical analysis. Interfaced with a mass spectrometer it allows the investigation of the molecular composition of liquid samples. With electrospray a large variety of chemical substances can be ionized.
openaire   +6 more sources

Energy dependence of the GAFCHROMIC LD‐V1 in the diagnostic radiographic modalities

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The GAFCHROMIC LD‐V1 radiochromic film is widely used in dosimetry because it can provide high‐resolution two‐dimensional dose distributions without processing. This study aimed to evaluate the response characteristics at different effective energies, from the low‐energy range of mammography to the high‐energy range of computed tomography. Net
Tatsuhiro Gotanda, Tomoyuki Hasuo, Shinnosuke Nishihara, Kohsei Matsuura, Yasuyuki Kawaji, Hidetoshi Yatake, Shinya Imai, Takuya Akagawa, Nobuyoshi Tanki, Toshizo Katsuda   +9 more
wiley   +1 more source

Impact of cosmic rays and solar energetic particles on the Earth’s ionosphere and atmosphere

Journal of Space Weather and Space Climate, 2013
A brief review of the study during COST Action ES0803 of effects due to cosmic rays (CR) and solar energetic particles (SEP) in the ionosphere and atmosphere is presented.
Mateev Lachezar, Lastovicka Jan, Kudela Karel, Asenovski Simeon, Velinov Peter I.Y., Mishev Alexander, Tonev Peter   +6 more
doaj   +1 more source