نتایج جستجو برای: flourine
تعداد نتایج: 37 فیلتر نتایج به سال:
gonabad located at khorasan razavi and coordinates 580 30’ n 34o 35’ e. the highest point of the zone belongs to peak of siah mountain (height of 2,863 meters above sea level) and the lowest place has height of 810 meters above sea level, which is located in north west in salt desert. the mean temperature of the warmest and coldest of year is 29.3 and 3.9 respectively. moreover, mean of rainfal...
Pulsed nuclear magnetic resonance techniques with transverse radiofrequency pulses are used to determine the spin-lattice and spin-spin relaxation times of glycerol and Fe solutions of varying concentrations. The nuclear magnetic moments of flourine and hydrogen are found to be μH+ = (1.408± .008)× 10−26 J/T and μF− = (1.324± .007)× 10−26 J/T, respectively. A negative linear relation in log-log...
This experiment explores nuclear magnetic resonance (NMR) both as a physical phenomenon concerning atomic nuclei and as a ubiquitous laboratory technique for exploring the structure of bulk substances. Using radio frequency bursts tuned to resonance, pulsed NMR perturbs a thermal spin ensemble, which behaves on average like a magnetic dipole. One immediate consequence is the ability to measure ...
A well adherent thin film of Zinc Telluride (ZnTe) has been deposited on Flourine doped Tin oxide glass substrates from acidic baths containing heptahydrate and Tellurium dioxide. Films different thicknesses with their molar concentrations were obtained. mini Schimadzu UV-VIS Spectrophotometer was used to determine the optical absorbance films over wavelength range 300-900nm at room temperature...
Tissue macrophage numbers vary during health versus disease. Abundant inflammatory macrophages destruct tissues, leading to atherosclerosis, myocardial infarction and heart failure. Emerging therapeutic options create interest in monitoring macrophages in patients. Here we describe positron emission tomography (PET) imaging with 18F-Macroflor, a modified polyglucose nanoparticle with high avidi...
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