Search Results

Emissions Caps for Electricity

Description: This map shows states that cap greenhouse gas emissions through performance standards or through cap and trade systems.
Date: 2010
Creator: Pew Center on Global Climate Change
Item Type: Text
Partner: UNT Libraries

100% Renewable Energy - and Beyond - for Cities

Description: This booklet sketches out the options and the processes that have started to transform urban energy systems. The document promotes carbon neutrality for communities and cities and argues that even the largest cities can make this transition, drawing on renewable energy supplies from within their boundaries, as well as from farther away. In addition to assuring urban energy security, these developments can also stimulate the growth of a very large new green economy sector.
Date: March 2010
Creator: Droege, Peter
Item Type: Text
Partner: UNT Libraries

Fueling sustainable development: The energy productivity solution

Description: The booklet describes the mounting policy and business concerns surrounding the supply of energy and argues that the most cost-effective way to address these concerns is through improving energy productivity and adopting existing energy-efficient technologies that pay for themselves in future energy savings. The document supports the role of public policy in encouraging consumers and businesses to capture the benefits of higher energy productivity.
Date: October 2008
Creator: McKinsey Global Institute
Item Type: Text
Partner: UNT Libraries

Preliminary design of a cryogenic thermoelectric generator.

Description: A cryogenic thermoelectric generator is proposed to increase the efficiency of a vehicle propulsion system that uses liquid nitrogen as its fuel. The proposed design captures some of the heat required for vaporizing or initial heating of the liquid nitrogen to produce electricity. The thermoelectric generator uses pressurized liquid nitrogen as its cold reservoir and ambient air as the high-temperature reservoir to generate power. This study concentrated on the selection of thermoelectric materials whose properties would result in the highest efficiency over the operating temperature range and on estimating the initial size of the generator. The preliminary selection of materials is based upon their figure of merit at the operating temperatures. The results of this preliminary design investigation of the cryogenic thermoelectric generator indicate that sufficient additional energy can be used to increase overall efficiency of the thermodynamic cycle of a vehicle propulsion system.
Date: May 2007
Creator: Sivapurapu, Sai Vinay Kumar
Partner: UNT Libraries

Roadmap to Sustainable Government Buildings

Description: This document encourages governments to use LEED certifications in the construction of government buildings, and to promote LEED buildings in their jurisdictions. The document provides advice on how to promote and administer such projects.
Date: 2009
Creator: U.S. Green Building Council
Item Type: Text
Partner: UNT Libraries

Pollution Prevention Act of 1990

Description: The Pollution Prevention Act focused industry, government, and public attention on reducing the amount of pollution through cost-effective changes in production, operation, and raw materials use. Opportunities for source reduction are often not realized because of existing regulations, and the industrial resources required for compliance, focus on treatment and disposal. Source reduction is fundamentally different and more desirable than waste management or pollution control. Pollution prevention also includes other practices that increase efficiency in the use of energy, water, or other natural resources, and protect our resource base through conservation. Practices include recycling, source reduction, and sustainable agriculture.
Date: 1990
Creator: United States. Congress
Item Type: Text
Partner: UNT Libraries

Data Envelopment Analysis: Measurement of Educational Efficiency in Texas

Description: The purpose of this study was to examine the efficiency of Texas public school districts through Data Envelopment Analysis. The Data Envelopment Analysis estimation method calculated and assigned efficiency scores to each of the 931 school districts considered in the study. The efficiency scores were utilized in two phases. First, the school district efficiency scores were combined with school district student achievement to evaluate effectiveness with efficiency. A framework was constructed to graph the scores on an x-axis of student achievement scores and a y-axis of efficiency scores to further illustrate the data. The framework was evaluated with the full statewide sample and with school districts categorized into similar peer groups. Then, using variables selected from related scholarly literature, a regression analysis identified which factors impacted school district efficiency statewide. The non-discretionary variables included in the study were total student enrollment, the percentage of non-white students and the percentage of economically disadvantaged students. The discretionary variables selected included the teacher-to-student ratio, teachers’ average years of experience, the percentage of teachers with master’s degrees and the average teacher base salary. Amongst the seven factors selected for regression analysis, five statistically significant variables were identified as impacting statewide school district efficiency. All three non-discretionary variables were identified as statistically significant on efficiency and included total student enrollment, the percentage of non-white students and the percentage of economically disadvantaged students. Two discretionary factors showed statistically significant effects on efficiency which included teachers’ average years of experience and the percentage of teachers with master’s degrees. The teacher-to-student ratio and the average teacher base salary were ineffective in predicting efficiency. This study contributed to the understanding on educational efficiency. Data Envelopment Analysis has been employed mainly in the private sector to analyze efficiency in economics and business organizations. This study added to the educational research ...
Date: August 2012
Creator: Carter, Lacy
Partner: UNT Libraries

Convenient kitchens.

Description: Provides plans for designing and organizing a kitchen to make it more convenient and efficient.
Date: 1937
Creator: Gray, Greta.
Item Type: Book
Partner: UNT Libraries Government Documents Department

What Relationship Exists Between the Populations of Church Congregations and Their Maximum Efficiency?

Description: The present study was calculated to determine whether or not a congregation with a good percentage increase in membership from a specific date in 1956 to a corresponding date in 1957 would also experience any percentage increase in attendance of members and visitors at the Sunday morning worship services. Likewise, would such a congregation have a large percentage of its assembly in attendance at its Bible classes and at its midweek services?
Date: 1957
Creator: Burton, Jimmy Grey
Partner: UNT Libraries