The martensitic transformation of Ni49.5Ti35.5Hf15 high temperature shape memory alloy is characterized by internal friction measurements. temperatures for the reversible B2 ↔ B19’ appear in range 410–479 K on cooling and 447–526 heating. In addition, a strong anomalous pre-martensitic softening dynamic modulus reported high-temperature phase, between 850 550 K, evidencing thermoelastic charact...

Volumetric techniques were employed to study the adsorption of CO2 on a purified multi-wall carbon nanotubes (MWNT’s) sample, as a mesoporous material, at isothermal conditions of 288, 293 and 298 K and pressures ranging from 30 to 150 kPa. Langmuir, Freundlich and Sips equations were used to represent the isotherms. Also the parameters of these fitted isotherm models have been determined. The ...

Salah satu penyebab penurunan kualitas minyak goreng adalah pemanasan dengan menggunakan suhu yang tinggi terutama pada sistem terbuka seperti wajan. Namun, informasi ini belum banyak diketahui oleh masyarakat secara luas. Peran fisika di sekolah memegang andil besar untuk menyampaikan tersebut supaya pembelajaran lebih kontekstual. Oleh karena itu, tujuan dari penelitian mengembangkan kit perc...

A change in the cycle of water from dry to wet regions of the globe would have far reaching impact on humanity. As air warms, its capacity to hold water increases at the Clausius-Clapeyron rate (CC, approximately 7% °C-1). Surface ocean salinity observations have suggested the water cycle has amplified at close to CC following recent global warming, a result that was found to be at odds with st...

We analyze how extreme rainfall intensities in the Eastern United States depend on temperature T, dew point temperature Td, and convective available potential energy CAPE, in addition to geographic sub-region, season, and averaging duration. When using data for the entire year, rainfall intensity has a quasi Clausius-Clapeyron (CC) dependence on T, with super-CC slope in a limited temperature r...

Using the in situ optical technique known as digital image correlation (DIC), full-field quantitative strain maps of localization have been experimentally obtained for the first time in thin sheets of Nitinol. The use of DIC provides new information connecting previous observations on the microand macro-scales. It shows that the transformation initiates before the formation of localized bands, ...

The impact of the circulation shift under climate warming on the distribution of precipitation extremes and the associated sensitivity to model resolution are investigated using Community Atmosphere Model Version 3.0 in an aquaplanet configuration. The response of the probability density function of the precipitation to a uniform sea surface temperature warming can be interpreted as superimposi...