نتایج جستجو برای: photographic application
تعداد نتایج: 770545 فیلتر نتایج به سال:
a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...
PURPOSE/OBJECTIVES To determine the preferences of patients with cancer for viewing photographic art in an inpatient hospital setting and to evaluate the impact of viewing photographic art. DESIGN Quantitative, exploratory, single-group, post-test descriptive design incorporating qualitative survey questions. SETTING An academic medical center in the midwestern United States. SAMPLE 80 me...
The current study explores the appraisal and description of photography in Israeli archives in the light of paradigmatic changes in archival theory. The review of the field's literature focuses on current attitudes towards the appraisal and description of photography in archives. There has been significant criticism of the custodial, history-centric attitude of photography archivists. Alternati...
Signal acquisition is a noisy business. In photographic images, there is noise within the light intensity signal (e.g., photon noise), and additional noise can arise within the sensor (e.g., thermal noise in a CMOS chip), as well as in subsequent processing (e.g., quantization). Image noise can be quite noticeable, as in images captured by inexpensive cameras built into cellular telephones, or ...
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