Magnetic resonance force microscopy is combined with spin-echo spectroscopy to obtain spatially and spectrally resolved NMR signals of micrometer-scale objects. The experimental spatial resolution for the demonstration experiment on a sample consisting of Ba(ClO3)2.H2O and (NH4)2SO4 single crystals is 3.4 microm. The spectral resolution of 3.4 kHz is sample limited. Improvements in resolution a...

background: reverse osmosis (ro) is an increasingly common method of desalination. a full scale water desalination system by membrane technology (ro) evaluated in a southern city (jask) in iran. methods: first, data collection on water supply and network were performed. analysis on most of the water quality parameters (turbidity, ph, ec, cl-, na+, alkalinity, ca, na, k, no3, no2, fe, mg, mn, nh...

Epidemiologic and health impact studies have examined the chemical composition of ambient PM2.5 in China but have been constrained by the paucity of long-term ground measurements. Using the GEOS-Chem chemical transport model and satellite-derived PM2.5 data, sulfate and ammonium levels were estimated over China from 2004 to 2014. A comparison of the satellite-estimated dataset with model simula...

The most potential pollutants of the river Sitnica with phenols, heavy metals, and other physicochemical indicators are Kishnica Mine, Ferronikel, surface coal mines, Kosovo Energy Corporation, landfill industrial waste in Mitrovica, landfills urban discharges, etc. purpose this work is to investigate degree pollution determine ecological status River. Although focus our research phenol waters ...

Three samples of fluorapophyllite-(K) with different cation composition were studied by the X-ray diffraction and IR-spectroscopy methods. The (K0.72(NH4)0.20)Σ0.92Na0.08 Ca4[Al0.04Si7.96O20]F·8H2O from Nidym K0.87Na0.06 Ca4[Si8O20]F·8H2O Akhaltsykhe localities are characterized deficiency large cations K+ (NH4)+ in A site; chemical Talnakh sample (K0.94(NH4)0.06)Σ1.00 is close to stoichiometri...

We examined whether dietary acid that increases net acid excretion (NAE) without measurably decreasing plasma pH or total CO2(tCO2) causes net acid retention. Control rats drinking distilled H2O were compared with those drinking 40 mM (NH4)2SO4, 40 mM Na2SO4, or drinking Na2SO4and given aldosterone (Na2SO4+ Aldo) to increase NAE without dietary acid. Systemic plasma tCO2 increased in Na2SO4+ Al...