Underground Waters
نویسندگان
چکیده
منابع مشابه
Phthalates in underground waters of the Zagreb area.
AIM To determine whether and in what concentrations the underground waters, stream waters, spring water, and tap water from the Zagreb area contain phthalates -- compounds used as plastic softeners, which have recently been ascribed carcinogenic, mutagenic, and teratogenic effects. METHOD The presence of dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), benzylbutyl p...
متن کاملAntimicrobial Activity of Silver-Zeolite LTA on Heavily-Contaminated Underground Ghanaian Waters
Zeolite LTA was synthesized in the laboratory and loaded with silver ions by isomorphous substitution technique. The silverloaded zeolite A (Ag-LTA) was characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and Fourier transformed infrared (FTIR) spectroscopy. XRD and SEM analysis showed little or no changes in the phase purity of a...
متن کاملEmpirical Evaluation of Wireless Underground-to-Underground Communication in Wireless Underground Sensor Networks
Many applications for irrigation management and environment monitoring exploit buried sensors wired-connected to the soil surface for information retrieval. Wireless Underground Sensor Networks (WUSNs) is an emerging area of research that promises to provide communication capabilities to these sensors. To accomplish this, a reliable wireless underground communication channel is necessary, allow...
متن کاملCharacteristics of Underground Channel for Wireless Underground Sensor Networks
Wireless Underground Sensor Networks (WUSN) constitute one of the promising application areas of the recently developed wireless sensor networking techniques. The main difference between WUSN and the terrestrial wireless sensor networks is the communication medium. The propagation characteristics of electromagnetic (EM) waves in soil and the significant differences between propagation in air pr...
متن کاملRadium balance in discharge waters from coal mines in Poland the ecological impact of underground water treatment
Saline waters from underground coal mines in Poland often contain natural radioactive isotopes, mainly 226Ra from the uranium decay series and 228Ra from the thorium series. More than 70% of the total amount of radium remains underground as radioactive deposits due to spontaneous co-precipitation or water treatment technologies, but several tens of MBq of 226Ra and even higher activity of 228Ra...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1903
ISSN: 0028-0836,1476-4687
DOI: 10.1038/067547b0