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Web Archiving Workshop: Overview
This presentation gives a brief overview of the history of web archiving and explains key terms and concepts related to web archiving and harvesting with illustrated examples.
Date:
June 4, 2008
Creator:
Phillips, Mark Edward
Object Type:
Presentation
System:
The UNT Digital Library
Information Technology: Demand for the Social Security Administration's Electronic Data Exchanges Is Growing and Presents Future Challenges
A letter report issued by the Government Accountability Office with an abstract that begins "Federal and state agencies, including the Social Security Administration (SSA), routinely share data through electronic exchanges to help increase the efficiency of program operations, reduce program costs, and improve public service. In light of SSA's broad responsibility for carrying out data exchanges, GAO was asked to describe SSA's critical programs that exchange data with other federal and state agencies, as well as the information systems that they rely on; and determine challenges and limitations that SSA may face in effectively using its systems to carry out data exchanges in the future. To accomplish this, GAO reviewed and analyzed relevant agency documentation, held discussions with key agency officials, and reviewed selected exchange programs."
Date:
December 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Health Care: Oversight of Military Services' Post-Deployment Health Reassessment Completion Rates Is Limited
Correspondence issued by the Government Accountability Office with an abstract that begins "Military servicemembers engaged in combat tours in Afghanistan and Iraq are at risk of developing combat-related mental health conditions, including post-traumatic stress disorder (PTSD). In many cases, signs of potential mental health conditions do not surface until months after servicemembers return from deployment. In 2004, Army researchers published a series of articles that indicated a significant increase in the number of servicemembers reporting mental health concerns 90 to 120 days after returning from deployment, compared with mental health concerns reported before or soon after deployment. These findings led the Department of Defense (DOD) in March 2005 to develop requirements and policies for the post-deployment health reassessment (PDHRA) as part of its continuum of deployment health assessments for servicemembers. PDHRA is a screening tool for military servicemembers; it is designed to identify and address their health concerns--including mental health concerns--90 to 180 days after return from deployment. Servicemembers answer a set of questions about their physical and mental health conditions and concerns, and health care providers review the answers and refer servicemembers for further evaluation and treatment if necessary. A November 2007 study showed that a larger number of …
Date:
September 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Commonwealth of the Northern Mariana Islands: Managing Potential Economic Impact of Applying U.S. Immigration Law Requires Coordinated Federal Decisions and Additional Data
A letter report issued by the Government Accountability Office with an abstract that begins "The United States enacted legislation in May 2008 applying federal immigration law to the Commonwealth of the Northern Mariana Islands (CNMI) subject to a transition period. The CNMI is subject to most U.S. laws but has administered its own immigration system, including admitting foreign workers, tourists, and foreign investors. The Secretary of Homeland Security, in consultation with the Secretaries of the Interior, Labor, and State, and the Attorney General, has the responsibility to establish a transition program. GAO was asked to review how the legislation's implementation may affect the CNMI economy, in particular the CNMI's (1) labor market, including foreign workers; (2) tourism sector; and (3) foreign investment. This report is based on GAO's March 2008 report (GAO-08-466) and analysis of data on the CNMI's labor market, tourism sector, and foreign investment."
Date:
August 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Temporomandibular Joint and Muscle Disorders: NIH Supports a Wide Range of Research
Correspondence issued by the Government Accountability Office with an abstract that begins "Temporomandibular joint and muscle disorders (TMJD) include a heterogeneous group of disorders with overlapping--but not identical--signs and symptoms. Symptoms of TMJDs vary, but typically include pain in the jaw joint and surrounding muscles. Other symptoms may include limited or no movement of the jaw joint, clicking or grating in the jaw joint when opening or closing the mouth, headaches, and shoulder or back pain. Most people with TMJDs have relatively mild forms of these disorders with symptoms that diminish without treatment. However, a small number of individuals develop significant, long-term problems, including persistent and debilitating pain and loss of jaw function. Although some TMJDs are due to a specific known cause, such as jaw injury or arthritis, the causes of many TMJDs are unknown. While the level of understanding about these conditions has evolved with scientific advancements, diagnosis and treatment are difficult because the exact causes and patterns of symptoms remain unclear. The National Institutes of Health (NIH), an agency within the Department of Health and Human Services (HHS), funds research on the causes of, treatments for, and other aspects of TMJDs. The NIH is organized into 27 …
Date:
April 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Concentrated Animal Feeding Operations: EPA Needs More Information and a Clearly Defined Strategy to Protect Air and Water Quality from Pollutants of Concern
A letter report issued by the Government Accountability Office with an abstract that begins "Concentrated Animal Feeding Operations (CAFO) are large livestock and poultry operations that raise animals in a confined situation. CAFOs can improve the efficiency of animal production but large amounts of manure produce can, if not properly managed, degrade air and water quality. The Environmental Protection Agency (EPA) is responsible for regulating CAFOs and requires CAFOs that discharge certain pollutants to obtain a permit. This report discusses the (1) trends in CAFOs over the past 30 years, (2) amounts of waste they generate, (3) findings of key research on CAFOs' health and environmental impacts, (4) EPA's progress in developing CAFO air emissions protocols, and (5) effect of recent court decisions on EPA's regulation of CAFO water pollutants. GAO analyzed U.S. Department of Agriculture's (USDA) data from 1982 through 2002, for large farms as a proxy for CAFOs; reviewed studies, EPA documents, laws, and regulations; and obtained the views of federal and state officials."
Date:
September 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Individual Retirement Accounts: Government Actions Could Encourage More Employers to Offer IRAs to Employees
A letter report issued by the Government Accountability Office with an abstract that begins "Congress created individual retirement accounts (IRAs) with two goals: (1) to provide a retirement savings vehicle for workers without employer-sponsored retirement plans, and (2) to preserve individuals' savings in employer-sponsored retirement plans. However, questions remain about IRAs' effectiveness in facilitating new, or additional, retirement savings. GAO was asked to report on (1) how IRA assets compare to assets in other retirement plans, (2) what barriers may discourage small employers from offering IRAs to employees, and (3) the adequacy of the Internal Revenue Service's (IRS) and the Department of Labor's (Labor) oversight of and information on IRAs. GAO reviewed reports from government and financial industry sources and interviewed experts and federal agency officials."
Date:
June 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Management Report: Improvements Needed in IRS's Internal Controls
Correspondence issued by the Government Accountability Office with an abstract that begins "In November 2007, we issued our report on the results of our audit of the Internal Revenue Service's (IRS) financial statements as of, and for the fiscal years ending, September 30, 2007, and 2006, and on the effectiveness of its internal controls as of September 30, 2007. We also reported our conclusions on IRS's compliance with significant provisions of selected laws and regulations and on whether IRS's financial management systems substantially comply with the requirements of the Federal Financial Management Improvement Act of 1996 (FFMIA). The purpose of this report is to discuss issues identified during our audit of IRS's financial statements as of, and for the fiscal year ending, September 30, 2007, regarding internal controls that could be improved for which we currently do not have a specific recommendation outstanding. Although not all of these issues were discussed in our fiscal year 2007 audit report, they all warrant management's consideration. This report contains 24 recommendations that we are proposing IRS implement to improve its internal controls. We will issue a separate report on the implementation status of recommendations from our prior IRS financial audits and related financial …
Date:
June 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Various Issues Led to the Termination of the United States-Canada Shared Border Management Pilot Project
Correspondence issued by the Government Accountability Office with an abstract that begins "In the years since the 2001 terrorist attacks, balancing the need to secure U.S. borders while maintaining the flow of legitimate cross-border travel and commerce has taken on an added importance. The United States and Canada share a border that extends nearly 4,000 miles, and one of the world's largest trading relationships. Each year, approximately 70 million travelers and 35 million vehicles cross the border from Canada into the United States, according to the Department of Homeland Security (DHS). Given the volume of cross-border travel and trade between the United States and Canada, border congestion and the resulting wait times have a substantial economic impact on both nations. Furthermore, according to an analysis by DHS, the heightened emphasis on border security following the 2001 terrorist attacks has lengthened processing time for travelers and cargo crossing into the United States. Recognizing the need to improve both border security and border-crossing efficiency, the United States and Canada have cooperated on various cross-border management initiatives intended to increase the flow of legitimate travel across the border while maintaining security. For example, to facilitate the travel of low-risk prescreened individuals across the …
Date:
September 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Value-Added Taxes: Lessons Learned from Other Countries on Compliance Risks, Administrative Costs, Compliance Burden, and Transition
A letter report issued by the Government Accountability Office with an abstract that begins "Dissatisfaction with the federal tax system has led to a debate about U.S. tax reform, including proposals for a national consumption tax. One type of proposed consumption tax is a value-added tax (VAT), widely used around the world. A VAT is levied on the difference between a business's sales and its purchases of goods and services. Typically, a business calculates the tax due on its sales, subtracts a credit for taxes paid on its purchases, and remits the difference to the government. While the economic and distributional effects of a U.S. VAT type tax have been studied, GAO was asked to identify the lessons learned from other countries' experiences in administering a VAT. This report describes (1) how VAT design choices, such as exemptions and enforcement mechanisms, have affected compliance, administrative costs, and compliance burden; (2) how countries with federal systems administer a VAT; and (3) how countries that recently transitioned to a VAT implemented the new tax. GAO selected five countries to study--Australia, Canada, France, New Zealand, and the United Kingdom--that provided a range of VAT designs from relatively simple to more complex with multiple …
Date:
April 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Space Acquisitions: Major Space Programs Still at Risk for Cost and Schedule Increases
Testimony issued by the Government Accountability Office with an abstract that begins "Each year, the Department of Defense (DOD) spends billions of dollars to acquire space-based capabilities to support current military and other government operations as well as to enable DOD to transform the way it collects and disseminates information, gathers data on adversaries, and attacks targets. In fiscal year 2009 alone, DOD expects to spend over $10 billion to develop and procure satellites and other space systems. At the same time, however, DOD's space system acquisitions have experienced problems over the past several decades that have driven up costs by hundreds of millions, even billions, of dollars; stretched schedules by years; and increased performance risks. In some cases, capabilities have not been delivered to the warfighter after decades of development. This testimony relies on the extensive body of work GAO has produced reviewing DOD space acquisitions. It comments on the persistent problems affecting space acquisitions, the actions DOD has been taking to address these problems, and what remains to be done."
Date:
March 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Federal Disability Programs: Coordination Could Facilitate Better Data Collection to Assess the Status of People with Disabilities
Testimony issued by the Government Accountability Office with an abstract that begins "Multiple federal programs provide services and support to the approximately 50 million individuals with disabilities in America. While some health and economic data on people with disabilities are currently available, these data have limited use in providing a comprehensive assessment of how these individuals are faring. Additionally, the lack of more useful data limits the federal government's ability to determine how well federal programs are serving individuals with disabilities. GAO is providing information on (1) the limitations of data currently available to assess the status of individuals with disabilities and (2) how better coordination could help facilitate the collection of such data to inform policy decisions. This statement is based on prior GAO reports, including the May 2008 report on modernizing federal disability programs (GAO-08-635), the 2007 Comptroller General's forum on disability (GAO-07-934SP), and multiple reports on national indicators (e.g. GAO-05-1); and studies by other organizations, including the National Council on Disability."
Date:
June 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Alien Detention Standards: Observations on the Adherence to ICE's Medical Standards in Detention Facilities
Testimony issued by the Government Accountability Office with an abstract that begins "In fiscal year 2007, Department of Homeland Security's (DHS) U.S. Immigration and Customs Enforcement (ICE) detained over 311,000 aliens, with an average daily population of over 30,000 and an average length of stay of about 37 days in one of approximately 300 facilities. The care and treatment of aliens while in detention is a significant challenge to ICE, as concerns continue to be raised by members of Congress and advocacy groups about the treatment of the growing number of aliens while in ICE's custody. This testimony focuses on (1) the extent to which 23 facilities complied with medical care standards, (2) deficiencies found during ICE's annual compliance inspection reviews, and (3) the types of complaints filed by alien detainees about detention conditions. This testimony is based on GAO's July 2007 report evaluating, among other things, the extent to which 23 facilities complied with aspects of eight of ICE's 38 National Detention Standards. This report did not address quality of care issues."
Date:
June 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Combating Terrorism: Guidance for State Department's Antiterrorism Assistance Program Is Limited and State Does Not Systematically Assess Outcomes
Testimony issued by the Government Accountability Office with an abstract that begins "The Department of State's (State) Antiterrorism Assistance (ATA) program's objectives are to provide partner nations with counterterrorism training and equipment, improve bilateral ties, and increase respect for human rights. State's Office of the Coordinator for Counterterrorism (S/CT) provides policy guidance and its Bureau of Diplomatic Security, Office of Antiterrorism, Assistance (DS/T/ATA), manages program operations. GAO assessed (1) State's guidance for determining ATA priorities, (2) how State coordinates ATA with other counterterrorism programs, (3) the extent State established ATA program goals and measures, and (4) State's reporting on U.S. counterterrorism assistance. This statement is based on a February 2008, GAO report titled Combating Terrorism: State Department's Antiterrorism Program Needs Improved Guidance and More Systematic Assessments of Outcomes, GAO-08-336 (Washington, D.C.: Feb. 29, 2008)."
Date:
June 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
DOD Pharmacy Program: Continued Efforts Needed to Reduce Growth in Spending at Retail Pharmacies
A letter report issued by the Government Accountability Office with an abstract that begins "Estimated to reach $15 billion by 2015, the Department of Defense's (DOD) prescription drug spending has been a growing concern for the federal government. The John Warner National Defense Authorization Act (NDAA) for Fiscal Year 2007 required GAO to examine DOD's pharmacy benefits program. Specifically, as discussed with the committees of jurisdiction, GAO examined DOD's prescription drug spending trends from fiscal years 2000 through 2006 and DOD's key efforts to limit its prescription drug spending. To conduct this work, GAO analyzed DOD's data on spending trends, including trends in beneficiary pharmacy use. GAO also assessed DOD's cost avoidance data and the agency's efforts to limit spending through its uniform formulary, which is a list of preferred drugs available to all beneficiaries. GAO interviewed DOD officials about these and other efforts to limit spending."
Date:
April 4, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Z' Coupling Information From LHeC
None
Date:
April 4, 2008
Creator:
Rizzo, Thomas G.
Object Type:
Article
System:
The UNT Digital Library
Resonant Soft X-Ray Contrast Variation Methods as Composition-Specific Probes of Thin Polymer Film Structure
We have developed complementary soft x-ray scattering and reflectometry techniques that allow for the morphological analysis of thin polymer films without resorting to chemical modification or isotopic 2 labeling. With these techniques, we achieve significant, x-ray energy-dependent contrast between carbon atoms in different chemical environments using soft x-ray resonance at the carbon edge. Because carbon-containing samples absorb strongly in this region, the scattering length density depends on both the real and imaginary parts of the atomic scattering factors. Using a model polymer film of poly(styrene-b-methyl methacrylate), we show that the soft x-ray reflectivity data is much more sensitive to these atomic scattering factors than the soft x-ray scattering data. Nevertheless, fits to both types of data yield useful morphological details on the polymer?slamellar structure that are consistent with each other and with literature values.
Date:
April 4, 2008
Creator:
Welch, Cynthia; Welch, Cynthia F.; Hjelm, Rex P.; Mang, Joseph T.; Hawley, Marilyn E.; Wrobleski, Debra A. et al.
Object Type:
Article
System:
The UNT Digital Library
Breaking the Curse of Cardinality on Bitmap Indexes
Bitmap indexes are known to be efficient for ad-hoc range queries that are common in data warehousing and scientific applications. However, they suffer from the curse of cardinality, that is, their efficiency deteriorates as attribute cardinalities increase. A number of strategies have been proposed, but none of them addresses the problem adequately. In this paper, we propose a novel binned bitmap index that greatly reduces the cost to answer queries, and therefore breaks the curse of cardinality. The key idea is to augment the binned index with an Order-preserving Bin-based Clustering (OrBiC) structure. This data structure significantly reduces the I/O operations needed to resolve records that cannot be resolved with the bitmaps. To further improve the proposed index structure, we also present a strategy to create single-valued bins for frequent values. This strategy reduces index sizes and improves query processing speed. Overall, the binned indexes with OrBiC great improves the query processing speed, and are 3 - 25 times faster than the best available indexes for high-cardinality data.
Date:
April 4, 2008
Creator:
Wu, Kesheng; Wu, Kesheng; Stockinger, Kurt & Shoshani, Arie
Object Type:
Article
System:
The UNT Digital Library
On a Thermal Analysis of a Second Stripper for Rare Isotope Accelerator.
This memo summarizes simple calculations and results of the thermal analysis on the second stripper to be used in the driver linac of Rare Isotope Accelerator (RIA). Both liquid (Sodium) and solid (Titanium and Vanadium) stripper concepts were considered. These calculations were intended to provide basic information to evaluate the feasibility of liquid (thick film) and solid (rotating wheel) second strippers. Nuclear physics calculations to estimate the volumetric heat generation in the stripper material were performed by 'LISE for Excel'. In the thermal calculations, the strippers were modeled as a thin 2D plate with uniform heat generation within the beam spot. Then, temperature distributions were computed by assuming that the heat spreads conductively in the plate in radial direction without radiative heat losses to surroundings.
Date:
August 4, 2008
Creator:
Momozaki, Y. & Nolen, J.
Object Type:
Report
System:
The UNT Digital Library
Measurement of D^0-\bar{D^0} Mixing From a Time-Dependent Amplitude Analysis of D^0\ -> K^+\pi^-\pi0 Decays
The authors present evidence of D{sup 0}-{bar D}{sup 0} mixing using a time-dependent amplitude analysis of the decay D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} in a data sample of 384 fb{sup -1} collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at SLAC. Assuming CP conservation, they measure the mixing parameters x{prime}{sub K{pi}{pi}{sup 0}} = [2.61{sub -0.68}{sup +0.57}(stat.) {+-} 0.39(syst.)]%, y{prime}{sub K{pi}{pi}{sup 0}} = [-0.06{sub -0.64}{sup +0.55}(stat.) {+-} 0.34(syst.)]%. The confidence level for the data to be consistent with the no-mixing hypothesis is 0.1%, including systematic uncertainties. This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. They find no evidence of CP violation in mixing.
Date:
August 4, 2008
Creator:
Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type:
Article
System:
The UNT Digital Library
INVESTIGATION OF THE PRESENCE OF DRUGSTORE BEETLES WITHIN CELOTEX ASSEMBLIES IN RADIOACTIVE MATERIAL PACKAGINGS
During normal operations at the Department of Energy's Hanford Site in Hanford, WA, drugstore beetles, (Stegobium paniceum (L.) Coleoptera: Anobiidae), were found within the fiberboard subassemblies of two 9975 Shipping Packages. Initial indications were that the beetles were feeding on the Celotex{trademark} assemblies within the package. Celotex{trademark} fiberboard is used in numerous radioactive material packages serving as both a thermal insulator and an impact absorber for both normal conditions of transport and hypothetical accident conditions. The Department of Energy's Packaging Certification Program (EM-63) directed a thorough investigation to determine if the drugstore beetles were causing damage that would be detrimental to the safety performance of the Celotex{trademark}. The Savannah River National Laboratory is conducting the investigation with entomological expertise provided by Clemson University. The two empty 9975 shipping packages were transferred to the Savannah River National Laboratory in the fall of 2007. This paper will provide details and results of the ongoing investigation.
Date:
June 4, 2008
Creator:
Loftin, B & Glenn Abramczyk, G
Object Type:
Article
System:
The UNT Digital Library
Ferromagnetism in GaN: Gd: A density functional theory study
First principle calculations of the electronic structure and magnetic interaction of GaN:Gd have been performed within the Generalized Gradient Approximation (GGA) of the density functional theory (DFT) with the on-site Coulomb energy U taken into account (also referred to as GGA+U). The ferromagnetic p-d coupling is found to be over two orders of magnitude larger than the s-d exchange coupling. The experimental colossal magnetic moments and room temperature ferromagnetism in GaN:Gd reported recently are explained by the interaction of Gd 4f spins via p-d coupling involving holes introduced by intrinsic defects such as Ga vacancies.
Date:
February 4, 2008
Creator:
Stevenson, Cynthia & Stevenson, Cynthia
Object Type:
Article
System:
The UNT Digital Library
Measurements of {\cal B}(\overline{B}^0 \to \Lambda_{c}^{+} \overline{p}) and {\cal B}(B^- \to \Lambda_{c}^{+} \overline{p} \pi^-) and Studies of \Lambda_{c}^{+}\pi^- Resonances
The authors present an investigation of the decays {bar B}{sup 0} {yields} {Lambda}{sub c}{sup +}{bar p} and B{sup -} {yields} {Lambda}{sub c}{sup +}{bar p}{pi}{sup -} based on 383 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays recorded with the BABAR detector. They measure the branching fractions of these decays; their ratio is {Beta}(B{sup -} {yields} {Lambda}{sub c}{sup +}{bar p}{pi}{sup -})/{Beta}({bar B}{sup 0} {yields} {Lambda}{sub c}{sup +}{bar p}) = 15.4 {+-} 1.8 {+-} 0.3. The B{sup -} {yields} {Lambda}{sub c}{sup +}{bar p}{pi}{sup -} process exhibits an enhancement at the {Lambda}{sub c}{sup +}{bar p} threshold and is a laboratory for searches for excited charm baryon states. They observe the resonant decays B{sup -} {yields} {Sigma}{sub c}(2455){sup 0}{bar p} and B{sup -} {Sigma}{sub c}(2800){sup 0}{bar p} but see no evidence for B{sup -} {yields} {Sigma}{sub c}(2520){sup 0}{bar p}. This is the first observation of the decay B{sup -} {yields} {Sigma}{sub c}(2800){sup 0}{bar p}; however, the mass of the observed excited {Sigma}{sub c}{sup 0} state is (2846 {+-} 8 {+-} 10) MeV/c{sup 2}, which is somewhat inconsistent with previous measurements. Finally, they examine the angular distribution of the B{sup -} {yields} {Sigma}{sub c}(2455){sup 0}{bar p} decays and measure the spin of the {Sigma}{sub c}(2455){sup …
Date:
August 4, 2008
Creator:
Collaboration, The BABAR & Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms
An improved HVAC system for portable classrooms was specified to address key problems in existing units. These included low energy efficiency, poor control of and provision for adequate ventilation, and excessive acoustic noise. Working with industry, a prototype improved heat pump air conditioner was developed to meet the specification. A one-year measurement-intensive field-test of ten of these IHPAC systems was conducted in occupied classrooms in two distinct California climates. These measurements are compared to those made in parallel in side by side portable classrooms equipped with standard 10 SEER heat pump air conditioner equipment. The IHPAC units were found to work as designed, providing predicted annual energy efficiency improvements of about 36 percent to 42 percent across California's climate zones, relative to 10 SEER units. Classroom ventilation was vastly improved as evidenced by far lower indoor minus outdoor CO2 concentrations. TheIHPAC units were found to provide ventilation that meets both California State energy and occupational codes and the ASHRAE minimum ventilation requirements; the classrooms equipped with the 10 SEER equipment universally did not meet these targets. The IHPAC system provided a major improvement in indoor acoustic conditions. HVAC system generated background noise was reduced in fan-only and fan and compressor …
Date:
April 4, 2008
Creator:
Apte, Michael G.; Norman, Bourassa; Faulkner, David; Hodgson, Alfred T.; Hotchi, Toshfumi; Spears, Michael et al.
Object Type:
Report
System:
The UNT Digital Library