نتایج جستجو برای: x ray analyses
تعداد نتایج: 1028286 فیلتر نتایج به سال:
In 2012 it was forty years ago that the discovery of the first X-ray binary Centaurus X-3 became known. That same year it was discovered that apart from the High-Mass X-ray Binaries (HMXBs) there are also Low-Mass X-ray Binaries (LMXBs), and that Cygnus X-1 is most probably a black hole. By 1975 also the new class of Be/X-ray binaries was discovered. After this it took 28 years before ESAs INTE...
Recent technological developments and new topology designs have made semiconductor drift detectors ideal devices for high-resolution x-ray spectrometry. In this paper the basic topology of a semiconductor drift detector with on-chip electronics specially designed for x-ray spectrometry is reviewed. These devices have been used for the first time in x-ray and g-ray spectroscopy applications. In ...
introduction individual x-ray diffraction patterns of biological tissues are obtained via interference of coherent scattering with their electrons. many scientists have distinguished normal and cancerous breast tissue, bone density, and urinary stone types using the x-ray diffraction patterns resulting from coherent scattering. the goal of this study was to introduce an optimized method for obt...
PURPOSE Strontium has chemical similarity to calcium, which enables the replacement of calcium by strontium in biomineralization processes. Incorporating strontium into human bone and teeth has been studied extensively but little research has been performed of the incorporation of strontium into urinary calculi. We used synchrotron based x-ray fluorescence and x-ray absorption techniques to exa...
Titania, single-doped and lanthanum-silver co-doped titania nanocomposite were coated on cellulosic and polyacrylonitrile fibers via sol–gel method. The prepared samples were evaluated using x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photolumines...
لیگاند 5- برومو-سالیسیلیدین-ایمین-n,n دی متیل-اتیلن آمین، از واکنش 5- برومو-سالیسیل آلدهید و n,n- دی متیل-اتیلن دی آمین در حلال متانول و طی چهار ساعت تقطیر برگشتی تهیه گردید. سپس این لیگاند با اکسید وانادیوم(iv) استیل استونات، استات مس(ii) یک آبه، استات روی(ii) دو آبه و نیترات نیکل(ii) شش آبه با نسبت 1:2 و در حلال متانول به مدت دو ساعت واکنش داده، که به ترتیب کمپلکس-های[vol(acac)] ، [cu2l2(oac)...
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