Civil and Environmental Engineering Commons^™

Estimating Mineral Weathering Rates In Catskills Watersheds, Chris E. Johnson

Chris E Johnson

No abstract provided.

Is Horizon Sampling More Powerful Than Depth Sampling?, Chris E. Johnson

Chris E Johnson

No abstract provided.

Soil Chemistry Response To Wollastonite (Casio3) Addition At Hubbard Brook, Chris E. Johnson

Chris E Johnson

No abstract provided.

Recovery Of Sensitive Watersheds In The Northeastern United States From Chronic Acidification: The Role Of Soil Chemistry, Chris E. Johnson

Chris E Johnson

No abstract provided.

Application Of Gis In Seismic Risk Assessment For The City Of Kelowna, Md. Nurul Alam

Md. Nurul Alam

No abstract provided.

Soil Chemistry And The Recovery Of Sensitive Watersheds From Chronic Acidification, Chris E. Johnson

Chris E Johnson

No abstract provided.

Application Of Event Tree Analysis In Wildfire Risk Assessment For The City Of Kelowna, Md. Nurul Alam

Md. Nurul Alam

The devastating inferno of the Okanagan Mountain Park Fire of 2003, which caused significant damage to infrastructure, home, private properties and caused evacuation of affected people from the City of Kelowna. Consequently, it raised the importance of conducting a risk assessment for the City. This study focused on analyzing the existing risks from wild fire, and the estimation of loss and damage with the help of proposed event tree method for the City of Kelowna. Finally, the risky areas have been represented spatially with the help of geographic information system (GIS) to provide a basis for an effective decision making …

Monitoring And Modeling The Acidification And Recovery Of Catskills Waters And Soils, Chris E. Johnson

Chris E Johnson

No abstract provided.

Escalamiento De Dispersión De Contaminantes En La Ciudad De México, Francisco J. Valdes-Parada, J. Ruben Varela-Ham

Francisco J. Valdes-Parada

En días hábiles, la actividad vehicular más intensa en calles y avenidas de la ciudad de México se inicia a las 6:00 hs y se prolonga por aproximadamente 3 ó 4 horas. En ese periodo, la capa de mezclado permanece relativamente quieta y expuesta a recibir una carga importante de contaminantes producto de emisiones vehiculares. En esas condiciones de ausencia de movimientos atmosféricos verticales y horizontales, y de intensa actividad contaminante, adquieren importancia los procesos de dispersión que ocurren en la horizontal y a nivel del suelo.

En este trabajo se lleva a cabo un proceso de promediado de las …

Study On The Activity Of New Amine Based Absorbents For Co2 Absorption From Flue Gases, João F. Gomes

João F Gomes

The capture of CO2 from flue gases can be done by chemical absorption with aqueous amine solutions like MEA (monoethanolamine). Although this is a proven process, there are still operational problems to overcome [1], namely those resulting from solvent degradation, precipitation, corrosion and foaming. Also, the absorption capacity of the most current amines must be improved in order to obtain a more profitable operation. It has been shown previously that relationships exist between the amine structure and the activity/capacity for CO2 absorption. The introduction of amine substituents at the α-carbon creates a carbamate instability, which causes the hydrolysis to go …

Studies On The Development Of Novel Heterogeneous Catalysts For Transesterification Of Triglycerides In Biodiesel, João F. Gomes

João F Gomes

No abstract provided.

Modelado Matemático En Ingeniería, Francisco J. Valdes-Parada

Francisco J. Valdes-Parada

En esta plática se discute de una manera sencilla la importancia que tiene el modelado matemático en Ingeniería. Para ello, se presenta una visión personal sobre el papel que juegan asignaturas como fenómenos de transporte y termodinámica en la formación de licenciatura y posgrado en Ingeniería. Más aún, con el objetivo de ilustrar la importancia de los cambios de escala que frecuentemente aparecen en Ingeniería, se analiza el caso del flujo de un soluto a través de tubos capilares. De esta manera, se tiene un sistema donde a escala microscópica son relevantes la difusión (radial y axial) y convección (axial) …

Evaluating And Estimating The Effect Ofland Use Changed On Water Quality At Selorejo Reservoir, Indonesia, Mohammad Sholichin - -

Mohammad Sholichin - -

Nutrients are necessary for the survival of living organisms. The most important nutrient in aquatic ecosystem is typically Nitrogen (N) and Phosphorus (P). It was considered to be an important water quality concern in Konto River Basin due to a high water pollutant indication problem of reservoir Selorejo. Nitrogen and phosphorous are the two nutrients originating from inorganic and organic fertilizer that affect the reservoir water quality due to intensive agricultural farming. Increased N and P fertilizer application on the agriculture activity has larges N and P nutrient burdens to the reservoir through runoff and leaching. The aim of this …