نتایج جستجو برای: accel in 3 level 25
تعداد نتایج: 17409459 فیلتر نتایج به سال:
A diverse set of intelligent activities, including natural language understanding and diagnosis, requires the ability to construct explanations for observed phenomena. In this paper, we view explanation as abduction, where an abductive explanation is a consistent set of assumptions which, together with background knowledge, logically entails a set of observations. We have successfully built a d...
the present study was conducted to investigate the effect of implicit focus on form through input flooding and the effect of noticing, explicit focus on form on linguistic accuracy. to fulfill the purpose of the study, 86 iranian pre-intermediate efl learners of one of the language institutes were chosen by means of administering ket as the homogeneity test. these learners were pretested throug...
A spatial, electro-optical autocorrelation (EOA) interferometer using the vertically polarized lobes of coherent transition radiation (CTR) has been developed as a single-shot electron bunch length monitor at an optical beam port downstream the 100 MeV preinjector LINAC of the Swiss Light Source. This EOA monitor combines the advantages of step-scan interferometers (high temporal resolution) [D...
there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...
BACKGROUND Concerns on human and environmental safety and label claims of many microbicides point to the need for safer, faster acting, and broad-spectrum substitutes. ACCEL TB, a 0.5% accelerated H(2)O(2) (AHP)-based disinfectant described here, is a potential candidate. METHODS ACCEL TB was tested for its broad-spectrum microbicidal activity, safety and materials compatibility using interna...
A prototype superconducting accelerator module housing six 176 MHz half wave resonators and three superconducting solenoids is currently under production at ACCEL as part of a 40 MeV linear accelerator at the SOREQ NRC [1]. The module will accelerate protons and deuterons from energy of 1.5 MeV/u up to 6.5 MeV. The design is based on a peak electric field of 25 MV/m and maximum 10 W of power di...
We adapt the “reverse taper” scheme presented by Saldin et al. (Phys. Rev. ST Accel. Beams, 9, 050702 [2006]) for attosecond pulse production to the XUV/soft-xray regime. We find that that GW-level pulses of a few femtosecond duration or shorter can be produced using electron beams of quite moderate parameters and undulators of 20-m length or shorter. The output pulse is significantly shifted i...
It is known that sarcomas induced in mice with 3-methylcholanthrene (MCA) bear tumor-specific antigens which evoke specific immune responses when transplanted to isogenic animals. In this study, MCA-induced sarcomas were transplanted to iso genic C3H mice and the effect of immune suppression by wholebody X-irradiation on tumor growth was examined. The role of radiation dose, interval between ir...
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