Physical Sciences and Mathematics Commons^™

Leadership - A Lifetime Quest For Excellence, Douglas D. Piirto

Natural Resources Management and Environmental Sciences

This paper is written for aspiring leaders and managers. Each of us will be asked to lead, manage, and/or follow at various times and in many different situations in our journey of life. This paper is written to assist aspiring leaders and managers discover and develop their leadership and management abilities.

The paper is organized per the following outline:

• Introduction
• Establishing Credibility
• Enthusiasm and Desirable Habits of Effective People
• Leadership and Management
• Situational Analysis and Leadership Styles
• Leadership as a Student [discussed in Introduction)
• Leadership as a Forest Scientist
• Leadership as a Teacher and Professor
• Leadership as a Department Head …

Investigation Of Thermochemical Biorefinery Sizing And Environmental Sustainability Impacts For Conventional Supply System And Distributed Pre-Processing Supply System Designs, David J. Muth Jr, Matthew H. Langholtz, Eric Cd Tan, Jacob J. Jacobson, Amy Schwab, May M. Wu, Andrew Argo, Craig C. Brandt, Kara G. Cafferty, Yi-Wen Chiu, Abhijit Dutta, Laurence M. Eaton, Erin M. Searcy

Natural Resources Management and Environmental Sciences

The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances …

Theory Of Transient Streaming Potentials In Coupled Unconfined Aquifer-Unsaturated Zone Flow To A Well, Bwalya Malama

Natural Resources Management and Environmental Sciences

A semianalytical solution is presented for transient streaming potentials associated with flow to a pumping well in an unconfined aquifer, taking into account the effect of flow in the unsaturated zone above the water table. Flow in the unsaturated zone is modeled with a linearized form of Richards' equation using an exponential model for soil moisture retention and unsaturated hydraulic conductivity. Archie's law is invoked for unsaturated electrical conductivity. The unsaturated electrokinetic coupling coefficient is modeled with a decaying exponential, where the maximum value is at and below the water table. The coupled flow and electrokinetic problem is solved using …

Classification Of Plot-Level Fire-Caused Tree Mortality In A Redwood Forest Using Digital Orthophotography And Lidar, Brian D. Bishop, Brian C. Dietterick, Russell A. White, Tom B. Mastin

Natural Resources Management and Environmental Sciences

Aerial and satellite imagery are widely used to assess the severity and impact of wildfires. Light detection and ranging (LiDAR) is a newer remote sensing technology that has demonstrated utility in measuring vegetation structure. Combined use of imagery and LiDAR may improve the assessment of wildfire impacts compared to imagery alone. Estimation of tree mortality at the plot scale could serve for more rapid, broad-scale, and lower cost post-fire assessments than feasible through field assessment. We assessed the accuracy of classifying color-infrared imagery in combination with post-fire LiDAR, and with differenced (pre- and post-fire) LiDAR, in estimating plot percent mortality …

Life-Cycle Water Quantity And Water Quality Implications Of Biofuels, May Wu, Zhonglong Zhang, Yi-Wen Chiu

Natural Resources Management and Environmental Sciences

Water consumption and water quality continue to be key factors affecting environmental sustainability in biofuel production. This review covers the findings from biofuel water analyses published over the past 2 years to underscore the progress made, and to highlight advancements in understanding the interactions among increased production and water demand, water resource availability, and potential changes in water quality. We focus on two key areas: water footprint assessment and watershed modeling. Results revealed that miscanthus-, switchgrass-, and forest wood-based biofuels all have promising blue and grey water footprints. Alternative water resources have been explored for algae production, and challenges remain. …