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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Non-Steady-State Approach #11;To Steady-State Kinetics: #11;Case Study Of H2s Oxidation By Oxygen, Andrey N. Zagoruiko, Vladimir V. Mokrinskii Nov 2003

Non-Steady-State Approach #11;To Steady-State Kinetics: #11;Case Study Of H2s Oxidation By Oxygen, Andrey N. Zagoruiko, Vladimir V. Mokrinskii

Andrey N Zagoruiko

Non-steady-state kinetic models may be used for treatment of steady-state kinetic data in case when algebraic elaboration of steady-state kinetic equations is impossible or complicated. The proposed approach includes numerical integration of time-dependent differential equations until achievement of steady-state, resulting in possibility to numerically obtain the rate values for separate reaction stages for given composition of reaction mixture. The obtained non-steady-state model may be then applied in simulation of catalyst pellets and catalyst beds in research and engineering purposes. The case study demonstrates application of such approach for steady-state kinetic description of complicated reaction system of H2S oxidation by oxygen. …


Rangeland Rehabilitation: Tal Rimah Case Study, Raed Al-Tabini, H. Soub Aug 2003

Rangeland Rehabilitation: Tal Rimah Case Study, Raed Al-Tabini, H. Soub

Raed Al-Tabini

No abstract provided.


Ocena Funkcjonowania Instalacji Oczyszczania Gazów Odlotowych Z Procesu Grafityzacji Elektrod Węglowych W Sgl Carbon S.A. W Nowym Sączu, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski Aug 2003

Ocena Funkcjonowania Instalacji Oczyszczania Gazów Odlotowych Z Procesu Grafityzacji Elektrod Węglowych W Sgl Carbon S.A. W Nowym Sączu, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski

Robert Oleniacz

The paper presents a general analysis of the suitability of individual elements of the flue-gas treatment system used in SGL Carbon SA in Nowy Sacz (Poland) for the graphitization process carried out in new LWG furnaces (Castner type). The flue-gas treatment system consisted of two installations: catalytic afterburning and flue-gas desulfurization. The analysis of the suitability of various methods of flue-gas treatment was based primarily on the assessment of the effects of their application, including the reduction of concentrations of selected components in post-graphitizing gases. The work also summarizes the results of evaluation of the functioning of the whole flue-gas …


Progressing Towards Governance For Sustainability At Parkfield School: Making Connections Through Dialogical Design, Sandra Wooltorton, Alan Kidd Jun 2003

Progressing Towards Governance For Sustainability At Parkfield School: Making Connections Through Dialogical Design, Sandra Wooltorton, Alan Kidd

Sandra Wooltorton

No abstract provided.


Global Challenges Show, Nat Quansah Feb 2003

Global Challenges Show, Nat Quansah

Nat Quansah

No abstract provided.


Inverting For Heterogeneous Slip On Three-Dimensional Fault Systems; A First Step Toward Understanding Fault Mechanics, Phillip Resor, D Pollard, F Maerten Dec 2002

Inverting For Heterogeneous Slip On Three-Dimensional Fault Systems; A First Step Toward Understanding Fault Mechanics, Phillip Resor, D Pollard, F Maerten

Phillip G Resor

Many studies of earthquake triggering and fault interaction have relied on highly-idealized fault geometries and slip distributions. Geological and geophysical observations, however, reveal that faults typically are not single planar surfaces with uniform slip bounded by rectangular tiplines, but are composed of multiple curved surfaces with curved tiplines and heterogeneous slip distributions. The segments typically are organized into echelon, conjugate, and intersecting patterns. The discontinuities, bends, intersections, and slip heterogeneities generate stress concentrations that may promote or inhibit slip on nearby faults and thus play an important role in the mechanics of fault systems. It is therefore important to incorporate …


Space Ship Earth – Clinic In Forest, Nat Quansah Dec 2002

Space Ship Earth – Clinic In Forest, Nat Quansah

Nat Quansah

No abstract provided.


Strukturationen Der Interaktivität, Rudolf Kaehr Dec 2002

Strukturationen Der Interaktivität, Rudolf Kaehr

Rudolf Kaehr

No abstract provided.


Community Environmental Policing, Gregg P. Macey Dec 2002

Community Environmental Policing, Gregg P. Macey

Gregg P. Macey

This paper evaluates a new form of public participation in environmental monitoring and regulation advanced through local bucket brigades, which allow community members to sample air emissions near industrial facilities. These brigades represent a new form of community environmental policing, in which residents participate in collecting, analyzing, and deploying environmental information, and more importantly, in an array of public policy dialogues. Use of this sampling technology has had marked effects on local residents' perceptions and participation in emergency response and citizens' right-to-know. However, when viewed through the lens of the more developed literature on community policing, the bucket brigades are …