نتایج جستجو برای: copper mirror
تعداد نتایج: 108538 فیلتر نتایج به سال:
The reflectormirror is the most important component of an astronomical optical telescope. This chapter provides discussions on the requirements for astronomical optical mirrors; the ways to reduce mirror weight, mirror cost, and mirror materials; the methods of mirror figuring, polishing, and surface coating; the design of mirror support mechanism; the concept of mirror seeing; and the stray li...
In this study 130 honeybee colonies in 4 locations (Damavand, Tehran, Qum and Karaj-Savojbolagh) were sampled to determine the phenotypic correlations among 9 morphological and 3 production traits. The morphological traits were length (FL) and width (FB) of fore wing, cubital index (CI), length of hind leg (HL), length of probosics (LP), slender index (SI), length (WL) and width (WT) of wax mir...
The human mirror system has been the subject of much research over the past two decades, but little is known about the timecourse of mirror responses. In addition, it is unclear whether mirror and counter-mirror effects follow the same timecourse. We used single-pulse transcranial magnetic stimulation to investigate the timecourse of mirror and counter-mirror responses in the human brain. Exper...
The influence of various electrolysis parameters, such as the type cathode, composition electrolyte and time, on morphology, structure hardness copper coatings has been investigated. Morphology were analyzed by scanning electron microscope (SEM), atomic force (AFM) X-ray diffraction (XRD), while coating was examined Vickers microindentation test applying Chicot–Lesage (C–L) composite model. Dep...
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