نتایج جستجو برای: injection system
تعداد نتایج: 2362032 فیلتر نتایج به سال:
Introduction: Recent findings revealed the biological effects of iron oxide nanoparticles on the central nervous system. Moreover, the brain cholinergic system plays a role in the modulation of anxiety behaviors. Therefore, this study aimed to evaluate the role of dorsal hippocampal muscarinic cholinergic receptors of the CA1 area on anxiety induced by iron oxide nanoparticles in adult male rat...
In the present study, the effect of the intraperitoneal injection of Carthamus tinctorius extract on non-specific immune system and some serological of Oncorhynchus mykiss has been investigated. To this end, the fish with average weight of 100±10 gr were intraperitoneally injected by different levels of safflower extract. In this regard, a negative control group (no injection), a positive contr...
as motorcycles are named as one of the important air pollution emission sources in tehran, investigating their emission performance and finding a solution for reducing their emission is of high importance. in this study, emission factors from 60 motorcycles from tehran’s present fleet and 4 closed loop injection fuel supply system and catalytic converter equipped motorcycles were measured. meas...
the aim of the present studyis radiographic evaluation of urinary system and the effect of urografin on clinical parameters, urinalysis and renal function tests in sheep. six clinically healthy female sheep were selected for this study. before experiment, vital signs were recorded. blood and urine samples were collected prior to the trials and paraclinical examinations were performed. uri...
In this work, we propose the use of an air segment in a sequential injection system to simultaneously improve the overlapping of the stacked zones and minimise dispersion. This strategy was developed for the determination of sulphate in natural and wastewaters. Barium chloride was used as a precipitating agent and the turbidity of the suspension formed was measured at 420 nm. Analysis was perfo...
Papers in HCI play different roles, whether to inspire, solve industrial problems or further the science of HCI. There is a potential conflict between the different views, and a danger that different forms of validity are assumed by author and reader — deliberately or accidentally. This paper reviews some of the issues in this complex area and makes practical recommendations. In particular, the...
A flow injection configuration (FIA) based on a galvanic detector for the determination of nitrogen dioxide is described. The gaseous sample is directly injected into a gaseous carrier. The sample is transported toward the detector. The steady state measurements are not required to obtain the reproducible peak signals. The features of FIA are compared with that of continuous flow monitoring app...
In this paper, we address the problem of reducing the unpredictability of userinitiated dialogue contributions in humancomputer interaction without explicitly restricting the user’s interactive possibilities. We demonstrate that it is possible to identify conditions under which particular classes of user-initiated contributions will occur and discuss consequences for dialogue system design.
Many software systems would significantly improve performance if they could interpret the nonverbal cues in their user’s interactions as humans normally do. Currently, Intelligent Tutoring Systems (ITSs) (and other software systems) are unable to use nonverbal cues to interpret student’s responses to instructional material as can human tutors. We believe that this capability is essential to ada...
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