12 research outputs found
Green and High Performance Factory Crafted Housing
In the U.S., factory-built housing greater than 400 square feet is built either to the U.S. Department of Housing and Urban Development (HUD) code for mobile homes or site-built codes for modular housing. During the last few years, as the production of HUD code housing has dwindled, many leading edge factory builders have started building modular homes to compete with site-built housing and stay in business.
As part of the Building America Industrialized Housing Partnership (BAIHP) we have assisted in the design and construction of several “green” and high performance modular homes that Palm Harbor Homes, Florida Division (PHH) has built for the International Builders’ Show (IBS) in 2006, 2007, and 2008. This paper will summarize the design features and the “green” and energy-efficient certification processes conducted for the 2008 show homes, one of which received the very first E-Scale produced by BAIHP for the U.S. Department of Energy (DOE) Builders Challenge program
The ESO supernovae type Ia progenitor survey (SPY) : The radial velocities of 644 DA white dwarfs
Accepted for publication in A&A. 59 pages.Close double degenerate binaries are one of the favoured progenitor channels for type Ia supernovae, but it is unclear how many suitable systems there are in the Galaxy. We report results of a large radial velocity survey for double degenerate (DD) binaries using the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY - SPY). Exposures taken at different epochs are checked for radial velocity shifts indicating close binary systems. We observed 689 targets classified as DA (displaying hydrogen-rich atmospheres), of which 46 turned out to possess a cool companion. We measured radial velocities (RV) of the remaining 643 DA white dwarfs. We managed to secure observations at two or more epochs for 625 targets, supplemented by eleven objects meeting our selection criteria from literature. The data reduction and analysis methods applied to the survey data are described in detail. The sample contains 39 double degenerate binaries, only four of which were previously known. 20 are double-lined systems, in which features from both components are visible, the other 19 are single-lined binaries. We provide absolute RVs transformed to the heliocentric system suitable for kinematic studies. Our sample is large enough to sub-divide by mass: 16 out of 44 low mass targets (0.45 Msun are double. Although the detected fraction amongst the low mass objects (36.4 +/- 7.3%) is significantly higher than for the higher-mass, carbon/oxygen-core dominated part of the sample (3.9 +/- 0.8%), it is lower than the detection efficiency based upon companion star masses >= 0.05 Msun. This suggests either companion stars of mass <0.05 Msun, or that some of the low mass white dwarfs are single.Peer reviewe
Research Results from A Few Alternate Methods of Interior Duct Systems in Factory Built Housing Located In the Hot Humid Climate
The U.S. Department of Energy’s (DOE) Building America1 Industrialized Housing Partnership (BAIHP) has collaborated with two of its industry partners to work on a portion of the project that relates to the construction and evaluation of prototype interior duct systems. In 2006, work began on a duct system design that would locate the entire length of duct work within the air and thermal barriers of the envelope. One of these designs incorporated a high-side supply register that connects to the conventional floor duct. The other design utilized a single soffit located within the conditioned space at the marriage line.
The Florida Solar Energy Center’s (FSEC) Manufactured Housing Lab (MHLab) was retrofitted with an interior soffit duct. The duct system was added on so that either the attic duct system or the new interior duct system would be able to supply air to the conditioned space using the same mechanical equipment.
The initial results of this work show approximately a 10% to 20% heating/cooling savings when compared to conventional attic duct work construction techniques and nearly 7% savings when compared to a conventional in-floor system
AN OVERVIEW OF BUILDING AMERICA INDUSTRIALIZED HOUSING PARTNERSHIP (BAIHP) ACTIVITIES IN HOT-HUMID CLIMATES
BAIHP (www.baihp.org ) conducts systems
research and technical assistance activities for new
housing. Hot-humid climate efforts described here
include:
Systems research : NightCool – A hybrid cooling
and dehumidification strategy employing radiative
cooling and desiccant materials. Interior Duct
Systems in Manufactured Houses – Tests are ongoing
in an occupied prototype home in Alabama and the
FSEC manufactured housing lab. Ventilation and
Dehumidification – A new strategy has been
developed to hook up a whole-house dehumidifier so
that it only runs when the air conditioning
compressor is off. Plug Load Reduction – Whole
house feedback devices and security system based
plug load reductions are being evaluated in prototype
homes. Solar and Conventional Domestic Hot Water
(DHW) Testing – A test facility is being constructed
to conduct side by side testing of three active and
passive solar, two gas and two electric DHW
systems.
Technical assistance was provided on the design,
construction and evaluation of four near zero energy
homes and over 300 highly energy efficient
production homes in subdivisions during 2007 and
2008
The Effects of Simulated Computerized Shoulder Model Training on the Accuracy and Consistency of Shoulder Mobilizations in First-year Physical Therapy Students
Presentation given at the Armstrong Atlantic State University 2013 Student Scholars Symposium
Randomized Controlled Trial Analyzing Effects of a Stimulated Computerized Shoulder Model Training on the Accuracy of the Forces Used During Shoulder Mobilizations in First-year Physical Therapy Students
Presentation given at the American Physical Therapy Association Combined Sections Meeting
Randomized Controlled Trial Analyzing Effects of a Stimulated Computerized Shoulder Model Training on the Accuracy of the Forces Used During Shoulder Mobilizations in First-year Physical Therapy Students
randomized controlled trial analyzing effects of a stimulated computerized shoulder model training on the accuracy of the forces used during shoulder mobilizations in first-year physical therapy student