نتایج جستجو برای: resolution
تعداد نتایج: 283047 فیلتر نتایج به سال:
background warts are benign tumors of the skin and mucosa and are caused by human papilloma virus (hpv). they are one of the most common skin diseases found mainly in children and adolescents. although most of the warts disappear spontaneously or respond to the usual therapeutic measures, resistant forms of the warts impose a problem in dermatology. intralesional injection of bleomycin has been...
forest classification on the basis of satellite images is a promising technique both for primary map production and for map updating and forest monitoring. for accurate for-est classification into three classes, using mapping by canopy cover density “high spatial resolution satellite images have to be used in order to obtain the required spatial detail” [schneider, 1999]. at the same time, the ...
this research project has been conducted to analyze the trend of changes in marital interactions, conflict resolution styles and marital quality based on the marriage age and marriage duration among the married men and women in qazvin city. the research method is descriptive and trend analysis. 302 married people (151 women and 151 men) from five districts of qazvin were selected using the volu...
objective: when none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. the aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. methods: in this diagnostic accuracy in vitr...
suppressing the terrorism financing is one of the ways to combat the phenomenon of terrorism. to this end, the countries, whether directly or through the united nations, have paved the way to restrain the terrorism financing. according to the obligatory character, those measures could be classified in to three categories: 1. resolutions passed by the security council, particulary resolution 137...
background: according to previous studies, most of the speech recognition disorders in older adults are the results of deficits in audibility and auditory temporal resolution. in this paper, the effect of ageing on timecompressed speech and auditory temporal resolution by word recognition in continuous and interrupted noise was studied. methods: a time-compressed speech test (tcst) was conducte...
introduction range and diffusion of positron-emitting radiopharmaceuticals are important parameters for image resolution in positron emission tomography (pet). in this study, geant4 toolkit was applied to study positron diffusion in soft tissues with and without a magnetic field for six commonly used isotopes in pet imaging including 11c, 13n, 15o, 18f, 68ga, and 82rb. materials and methods gea...
introduction: image quality and accuracy of in vivo activity quantification in spect are affected by collimator penetration and scatter components, especially in high energy imaging. these phenomena highly depend on the collimator characteristic and photon energy. the presence of penetrated and scattered photons from collimator in spect images degrades spatial resolution, contrast and image qua...
digital radiographs need additional metadata in order to be accurate when being converted to analog media. resolution is a major reason of failures in proper printing or digitizing the images. this letter shortly explains the overlooked pitfalls of digital radiography and photography in dental practice, and briefly instructs the reader how to avoid or rectify common problems associated with res...
one of the problems in detecting radar targets is the variation of target cross section due to aspect angle; which is named as target fluctuation. this perfectly depends on target geometry and transmitted wavelength and can cause significant loss of detection. one of the solutions to this is improving the radar range resolution. stepped frequency is one of the signals that can improve the range...
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