Sökning: "Desorption isotherms"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden Desorption isotherms.

  1. 1. Synchrotron Radiation, Adsorption Isotherms and the Large Hadron Collider Vacuum System

    Författare :Erik Wallén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; H2; photon stimulated desorption; CO2; cryotrapping; liquid He; accelerators; isotherms; CH4; He; Monte Carlo simulations; synchrotron radiation; vacuum; CO; physisorption;

    Sammanfattning : In circular particle accelerators and storage rings with relativistic beams of particles, e.g. electrons or protons, the vacuum performance of the accelerator is determined by the outgassing from the walls of the beam vacuum chamber. LÄS MER

  3. 2. Adsorption isotherms of H2 and mixtures of H2, CH4, CO and CO2 on copper plated stainless steel at 4.2 K and the large hadron collider vacuum system

    Författare :Erik Wallén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cryotrapping; CO; accelerators; CO2; physisorption; CH4; photon stimulated desorption; vacuum; isotherms; H2;

    Sammanfattning : .... LÄS MER

  4. 3. Treatment of arsenic contaminated drinking water from the sources around the gold mining areas of Geita and Mara, Tanzania : Removal efficiency of locally available materials, bauxite, gypsum and magnesite

    Författare :Regina Filemon Irunde; Prosun Bhattacharya; Felix Mtalo; Sudip Chakraborty; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arsenic; bauxite; gypsum; magnesite; natural water; removal; Visual MINTEQ; kinetic reaction; isotherms; Freundlich; Langmuir; Arseniki; bauxite; gypsum; magnesite; maji ya asili; kuondolewa; Visual MINTEQ; misuguano ya kinetic; isotherm; Freundlich; Langmuir; Arsenik; bauxit; gips; magnesit; naturligt vatten; rening; Visual MINTEQ; kinetisk reaktion; isotermer; Freundlich; Langmuir; Mark- och vattenteknik; Land and Water Resources Engineering;

    Sammanfattning : In recent years, high arsenic (As) levels of about 300 µg/L have been reported around the gold mining areas of Geita and Mara regions within the Lake Victoria basin (LVB) in Tanzania. During a sampling campaign at Geita and Mara, the groundwater and surface water samples revealed the presence of high As concentrations as well as Fe and sulfide. LÄS MER

  5. 4. Leaching and drying process steps in the manufacture of a botanica insecticide from ground neem seeds

    Författare :Rodolfo Espinosa; KTH; []
    Nyckelord :Neem; Azadiracthta indica; Leaching; Drying; Desorption isotherms; Characteristic drying curves; Non-volatile component;

    Sammanfattning : .... LÄS MER

  7. 5. Experimental studies of sorption and transport of moisture in cement based materials with supplementary cementitious materials

    Författare :Mahsa Saeidpour; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement; Concrete; Moisture transport; Hysteresis; Supplementary cementitious materials; Water vapor sorption; Sorption isotherms; Anomalous sorption;

    Sammanfattning : Most deterioration processes in cement based materials are closely related to moisture sorption and moisture transport properties. Therefore, it is important to study these properties, both theoretically and practically. This work is an experimental investigation in this field. LÄS MER