نتایج جستجو برای: illuminator
تعداد نتایج: 241 فیلتر نتایج به سال:
In this paper the choice between bending magnets and insertion devices as sample illuminators for a hard X-ray full-field microscope is investigated. An optimized bending-magnet beamline design is presented. Its imaging speed is very competitive with the performance of similar microscopes installed currently at insertion-device beamlines. The fact that imaging X-ray microscopes can accept a lar...
Vehicle detection systems play a significant role in intelligent transportation (ITSs). At present, vehicle is realized either by very costly inductive loops, video cameras that require good weather conditions and high computing resources, or recently developed magnetic sensors only obtain limited accuracy congested traffic conditions. To overcome these challenges, this paper develops passive r...
Abstract Camera traps are useful for monitoring wildlife populations, but may not always trigger when targeting small, nocturnal species. Motion‐detection techniques have advantages over time‐lapse and heat‐triggered traps, need to be deployed maximize signal‐to‐noise ratio. As part of a study flying squirrels ( Glaucomys ) in urban environments we developed motion‐detecting camera using raspbe...
Effect of azelastine on sulphur dioxide induced impairment of ciliary motility in airway epithelium.
OBJECTIVE The effect of azelastine on airway mucociliary transport function was studied by measuring ciliary motility of human bronchial epithelium in vitro with a photoelectric method. METHOD Bronchial epithelial cells were obtained by fibreoptic bronchoscopy, mounted in a Rose chamber, and perfused with Krebs-Henseleit solution. The preparations were placed on a microscope stage equipped wi...
Closed pars plana surgery was confined initially to the removal of opaque vitreous gel after vitreous haemorrhage. By modifying the cutting port of the vitrectomy instrument,' taut intravitreal bands and thick secondary membranes could be severed. Because of their proximity to the retina, preretinal membranes and tangential retinal traction bands were difficult to manage. Although the use of a ...
Aim. To evaluate the effectiveness of subconjunctivally injected viscoelastic material (VEM) for the self-sealing of leaking sclerotomy in transconjunctival sutureless vitrectomy (TSV). Methods. This was a prospective interventional series. Subconjunctival injection of VEM was performed in eyes showing leaking sclerotomy at the end of TSV in selected cases. This procedure was performed in 24 co...
Development of new therapies for myeloma has been hindered by the lack of suitable preclinical animal models of the disease in which widespread tumor foci in the skeleton can be detected reliably. Traditional means of detecting skeletal tumor infiltration such as histopathology are cumbersome and labor-intensive and do not allow temporal monitoring of tumor progression or regression in response...
In fixed-receiver bistatic synthetic aperture radar (SAR), the spaceborne SAR is used as an illuminator. The direct-path signal and bistatic SAR raw data are sampled by the fixed-receiver which is placed on the top of a building or a hill. As the direct-path signal has high signal-to-noise ratio (SNR) advantage and almost the same synchronization error terms, it is used as the reference signal ...
Recent increases in the use of celland tissue-based experimental models in life sciences and drug discovery have fueled a demand for a combination of imaging and quantitative cytometry techniques. This demand has been met with the development of LSC, which has substantial advantages over other cellular analysis technologies, such as fluorescence image analysis (FIA) and flow cytometry (FC)1. FI...
OBJECTIVE To determine and compare the mean dentoalveolar heights (mm) in different vertical and sagittal facial patterns. STUDY DESIGN Cross-sectional study. PLACE AND DURATION OF STUDY Orthodontics Clinic, The Aga Khan University Hospital, Karachi, from September to November 2013. METHODOLOGY Subjects, aged 15 - 20 years, having fully erupted first permanent molars and central incisors ...
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