نتایج جستجو برای: gamma discrimination
تعداد نتایج: 186928 فیلتر نتایج به سال:
The Diffusion Entropy algorithm is a method that allows the study of correlated non-stationary time series and allows the discrimination between signal and uncorrelated noise. DE provides a quantitative measure of the complexity by means of a scaling index δ. The aim of this paper is to apply this method to study and statistically characterize Gamma-Ray Burst light curves and to introduce a met...
This study examined the association of cytokine gene polymorphisms with intrahepatic bile duct wall fibrosis in human clonorchiasis. A total of 240 residents in Heilongjiang, China underwent ultrasonography, blood sampling, and stool examination. Single nucleotide polymorphism (SNP) sites for IFN-gamma (+874 T/A), IL-10 (-1,082 G/A, -819 C/T, -592 C/A), TNF-alpha (-308 G/A), and TGF-beta1 (codo...
The study aimed to explore the modulation of frequency bands (delta, theta, alpha-1 and alpha-2, and gamma) in response to emotional face within different post-stimulus time intervals (50-450 ms). Twenty adults looked at emotional (happy, sad, angry, fearful) or neutral faces. EEG results showed that motivational significance of face can modulate frequency bands, specifically for theta and gamm...
Cortical oscillatory activity in the gamma-band range (>30Hz) is a fundamental mechanism of neural coding that arises during a range of cognitive processes in both animals and humans. Since the first report on high frequency oscillatory synchrony between V1 neurons belonging to the same orientation column (Gray and Singer, 1989, PNAS, 86, 1698-1702), the role of such oscillations in visual perc...
For the first time we report ability of CLLB scintillator to detect and discriminate fast neutrons (2-10 MeV energy range) from gamma-rays thermal neutrons, using a digital pulse shape discrimination technique. Firstly, conducted measurements in single mode with an Am-Be source, unshielded shielded, tagged new cluster events as neutron-induced zone. The Figure Merit obtained for neutron/gamma w...
Abstract In the framework of development SWGO experiment, we have performed a detailed study single unit an extensive air shower observatory based on array water Cherenkov detectors. Indeed, one possible detector configurations for consists tanks, and to reach high detection efficiency discrimination capability between gamma-ray hadronic showers, different tank designs are under investigation. ...
The CALorimetric Electron Telescope CALET is collecting science data on the International Space Station since October 2015 with excellent and continuous performance. Energy measured a deep homogeneous calorimeter (1.2 nuclear interaction lengths, 27 radiation lengths) preceded by an imaging pre-shower (3 1mm granularity) providing tracking $$10^{-5}$$ electron/proton discrimination. Two indepen...
شهرهایی که در دامنه های کوهستانی شکل گرفته اند به شدت تحت تاثیر محیط فعال پیرامون خود قرار گرفته و به وسیله مخاطرات ژیومورفولوژیکی موجود در آن مورد تهدید قرار می گیرند. شهر جوانرود به دلیل قرارگیری در پاپکوهای زاگرس چین خورده و نیز به دلیل گذر روخانه فصلی و دایمی سوریر در شرق و لیله در جنوب شهر دارای مخاطرات محیطی مختلف از جمله حرکات دامنه ای و سیل و طغیان رودخانه می باشد. در تحقق حاضر به منظور...
We report a fast neutron and gamma induced radiation dose and flux monitoring study during the nano-particle production at the proton beam irradiation facility. The monitoring results will be used for understanding of the activation of irradiated samples and the effect to the nano-particle production. A cylindrical shape of BC523A liquid scintillator was used for the fast neutron and gamma moni...
This study addressed the question of the possible functional relevance of two different oscillatory activities, beta and gamma (15-40 and 60-90 Hz, respectively) for perception and memory processes in olfactory areas of mammals. Local field potentials were recorded near relay olfactory bulb neurons while rats performed an olfactory discrimination task. Signals reflected the mass activity from t...
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