The gas phase vibrational spectrum of CH3CNH+ is investigated using a messenger infrared predissociation (IRPD) action spectroscopic method. Vibrational bands were recorded in the 300-1700 cm−1 and 2000-3300 regions making use widely tunable free electron laser for experiments, FELIX, coupled to cryogenic ion trap instrument. Band assignments aided by high-level quantum-chemical calculations, w...

In this work, the effect of external load on current and power generation, as well pollutant removal by microbial fuel cells (MFCs), has been studied step-wise modifying load. The changes included a direct scan, in which resistance was increased from 120 Ω to 3300 Ω, subsequent reverse decreased back Ω. reduction current, experienced when increasing resistance, maintained even scan decreased. R...

A series of criteria such as morphological metrics, pathology, age structure, sex ratios, relative proportions, archaeological phenomena, diet analysis, and DNA studies are established for identifying the origins domestic animals in ancient China a scientific way. Using these criteria, it is that earliest dog has been found southern Hebei Province (ca. 10,000 BP), pig Henan 9000 BP...

Tell Awlad Dawood is a Predynastic and Early Dynastic settlement located in Sharqiya Province. The site small Tell. It has been occupied from the beginning of 4th millennium BC to Late Period, but its main occupation took place during times. eastern Nile Delta focus excavation since 1978. Until 1997, discoveries made date at were: some buildings, bowls, platters vats, ovoid globular pots, large...

This paper describes a man-machine theorem proving system at the Un ivers i ty of Texas (Austin) which has been used to prove a few theorems in general topology. The theorem (or subgoal) being proved is presented on the scope in i t s na tu ra l form so that the user can eas i l y comprehend it and, by a series of i n t e rac t i ve commands, can help wi th the proof when he des i res . A featu...

Abstract In this paper, we introduce a nanocomposite as humidity-sensitive sound absorber. The nanocomposites were prepared using hydrogel polymer (HP) matrix and graphene oxide (GO) filler. Results show that the surface energy of is 58.4 mJ m −2 , GO sheets increase porosity from 2.6716 cm 2 g −1 (for HP) up to 3.246 . addition, diameter pores 8.5202 nm lower than HP (10.274 nm). To study effe...