the zinc-cadmium oxide (zno-cdo) nanocomposites with different weight percentages of cadmium oxide (cdo) nanoparticles were successfully synthesized by the sonochemical method using zinc and cadmium nitrates as precursors to probe their nano-structured surfaces for the decomposition reactions of chloroethyl phenyl sulfide (ceps) as a surrogate of sulfur mustard agent simulant. scanning electron...

in this work firstly fe3o4 nanoparticles were synthesized via a sono-chemical method. at the second step magnesium hydroxide shell was synthesized on the magnetite-core under ultrasonic waves. for preparation fe3o4-mgo the product was calcinated at 400 ºc for 2h. properties of the product were examined by x-ray diffraction pattern (xrd), scanning electron microscope (sem) and fourier transform ...

The effects of sonication, potassium ferrate (K2FeO4) oxidation and their simultaneous combination (called “sono-oxidative pre-treatment”) on chemical properties and anaerobic digestion of waste activated sludge (WAS) were investigated and compared comprehensively. Based on chemical parameters, the optimum operating conditions were found to be 0.3 g K2FeO4/g total solids (TS) dosage for 2-h ind...

Robert Mettin Christian-Doppler-Laboratory for Cavitation and Micro-Erosion Drittes Physikalisches Institut Universität Göttingen Friedrich-Hund-Platz 1 37077 Göttingen, Germany Andrea Thiemann Christian-Doppler-Laboratory for Cavitation and Micro-Erosion Drittes Physikalisches Institut Universität Göttingen Friedrich-Hund-Platz 1 37077 Göttingen, Germany Carlos Cairós Barreto Christian-Doppler...

A fibromialgia corresponde a uma condição dolorosa musculoesquelética crônica que se diagnostica por meio da presença de dor crônica e difusa, e pela presença de dor à compressão de pelo menos onze de dezoito pontos anatomicamente determinados. Nos distúrbios do sono, embora não constituam critério diagnóstico, são freqüentes, em especial, os eventos de fragmentação do sono, tais como o aumento...

Internacional de Distúrbios do Sono. Estes são (1) a síndrome de mudança de fuso horário (jet lag), (2) distúrbio do sono, trabalho por turnos, (3) padrão irregular de sono

The current paper reports on a sonochemical synthesis method for manufacturing nanostructured (typical grain size of 50 nm) SrTi0.6Fe0.4O2.8 (Sono-STFO40) powder. This powder is characterized using X ray-diffraction (XRD), Mössbauer spectroscopy and Scanning Electron Microscopy (SEM), and results are compared with commercially available SrTi0.4Fe0.6O2.8 (STFO60) powder. In order to manufacture ...

Silver nanostructures as an effective antibacterial materials were synthesized via three various hydrothermal, sono-chemical and microwave methods using water as a green solvent. Then Chitosan-Ag polymer based nanocomposites were made by a fast chemical procedure. The influence of power, temperature and time on the morphology and particle size of the products was investigated. Scanning electron...