Thresher R e p o r t e r Baker master Carl R. Wischmeyer will resign his college post a t the end of the spring semester to become director of a new Office of Continuing Studies, said University President Kenneth Pitzer in a surprise announcement last night at the annual Baker Night dinner. No choice has been made on a replacement as Baker master , Pitzer said. The new office will organize inte...

The relation between climatic parameters (relative air humidity) and the water activity of the Urmia Sea water determines the possible maximum evaporation of the lake. Using the Pitzer thermodynamic approach, the activity of the Urmia Lake water during evaporation was calculated and compared to the present relative air humidity above the water. Present climatic conditions allow the Urmia Sea wa...

"This paper was the result of a need for thermodynamic data on several hydrocarbons. I was a member of the research staff of Humble Oil & Refining Co. and had been requested to evaluate a process that seemed to have some promise of commercial application. In order to do this, I needed enthalpies and entropies of several compounds, mainly hydrocarbons. However, to my disappointment some of these...

This article contributes to the development of a thermodynamic model for simulating CO2 solubility in pure water and aqueous brines under different conditions temperature, pressure ionic strength. The modeling activity-fugacity (?-?) approach allows calculating solubility, based on Pitzer electrolyte theory activity coefficient Peng-Robinson's equation state fugacity. present work proposes new ...

By SUSAN BRIDGES Thresher Editorial Staff University President K. S. Pitzer today dismissed Hugh Rice Kelly's appeal fo r hearing toy an impartial cqmmittee in the case of disciplinary action taken against him. Pitzer did this by confirming the action of Dean of Students S. W. Higginbotham in placing Kelly on probation and removing him f rom the editorship of the Thresher. He stated in a let te...

Mineral scale deposition in near wellbore regions of injection wells is one of the main challengeable issues during the water injection process, which magnifies the importance of robust models in predicting the amount of mineral scale deposition such as calcium sulfate. One of the main challenges of CaSO4 scale is in carbonated reservoirs, in which sensitive behavior is observed in related to t...

A decision tree to determine the phase region of high-pressure, high-temperature binary salt-water mixtures was developed. Based on temperature, pressure and feed concentration mixtures, regions either a type I or II salt were identified for selected condition range. The Anderko Pitzer equation state (AP EoS) used calculate equilibrium concentrations respective under high-pressure (P > 220 bar)...

Abstract The swelling of clay-sulfate rocks is a well-known phenomenon often causing threats to the success various geotechnical projects, including tunneling, road and bridge construction, geothermal drilling. origin usually explained by physical due clay expansion combined with chemical associated transformation anhydrite (CaSO 4 ) into gypsum ∙2H 2 O). latter occurs through dissolution subse...

using gaussian 03, software the thermodynamic functions such as gibbs free energy, g, enthalpy, h, and entropy, s, of alanine and valine amino acids were theoretically studied at different solvents. first, the density functional theory (b3lyp) level with 3-21g, 6-31g and 6-31+g basis sets were employed to optimization of isolated alanine and valine amino acids in the gas phase. moreover, vib...