1,827 research outputs found
Butyric Acid
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142237/1/jpen0443.pd
Research in Jeopardy
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142292/1/jpen1075.pd
A piezoelectrically actuated ball valve
Bimorph strip composed of two layers of poled piezoelectric ceramic material closes and opens valve. Strip performs like capacitator, allowing initial inrush of current when valve is energized and then only small leakage current flows as valve remains energized
Tumour necrosis factorâαâinduced loss of intestinal barrier function requires TNFR1 and TNFR2 signalling in a mouse model of total parenteral nutrition
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99095/1/jphysiol.2013.253518.pd
Simultaneous fine structure observation of wind and temperature profiles by the Arecibo 430-MHz radar and in situ measurements
A simultaneous campaign of balloon and radar measurements took place on March 14 to 16, 1984, above the Arecibo 430-MHz radar. This radar was operating with a vertical resolution of 150 m following two antenna beam directions: 15 deg. from the zenith, respectively, in the N-S and E-W directions. The main results concerning the comparison between the flight and simultaneous radar measurements obtained on March 15, 1984 are analyzed. The radar return power profile (S/N ratio in dB) exhibits maxima which are generally well correlated with step-like structures in the potential temperature profile. These structures are generally considered as the consequence of the mixing processes induced by the turbulence. A good correlation appears in the altitude range 12.5 to 19 km between wind shears induced by a wave structure observed in the meridional wind and the radar echo power maxima. This wave structure is characterized by a vertical wavelength of about 2.5 km, and a period in the range 30 to 40 hours. These characteristics are deduced from the twice daily rawinsonde data launched from the San Juan Airport by the National Weather Service. These results pointed out an example of the interaction between wave and turbulence in the upper troposphere and lower stratosphere. Turbulent layers are observed at locations where wind shears related to an internal inertia-gravity wave are maxima
Analysis, design, and prototype development of squeeze-film bearings for AB-5 gyro Final report phase 2, design, fabrication and evaluation of prototypes
Squeeze-film bearing transducers with piezoceramic cylinders for AB-5 gyro - design, fabrication, and testing of cylindrical journal and annular bearing prototype
Effects on Varying Intravenous Lipid Emulsions on the Small Bowel Epithelium in a Mouse Model of Parenteral Nutrition
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141978/1/jpen0775.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141978/2/jpen0775-sup-0001.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141978/3/jpen0775-sup-0002.pd
The microscopic nature of localization in the quantum Hall effect
The quantum Hall effect arises from the interplay between localized and
extended states that form when electrons, confined to two dimensions, are
subject to a perpendicular magnetic field. The effect involves exact
quantization of all the electronic transport properties due to particle
localization. In the conventional theory of the quantum Hall effect,
strong-field localization is associated with a single-particle drift motion of
electrons along contours of constant disorder potential. Transport experiments
that probe the extended states in the transition regions between quantum Hall
phases have been used to test both the theory and its implications for quantum
Hall phase transitions. Although several experiments on highly disordered
samples have affirmed the validity of the single-particle picture, other
experiments and some recent theories have found deviations from the predicted
universal behaviour. Here we use a scanning single-electron transistor to probe
the individual localized states, which we find to be strikingly different from
the predictions of single-particle theory. The states are mainly determined by
Coulomb interactions, and appear only when quantization of kinetic energy
limits the screening ability of electrons. We conclude that the quantum Hall
effect has a greater diversity of regimes and phase transitions than predicted
by the single-particle framework. Our experiments suggest a unified picture of
localization in which the single-particle model is valid only in the limit of
strong disorder
Total Body Sodium Depletion and Poor Weight Gain in Children and Young Adults With an Ileostomy
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141860/1/ncp0397.pd
Changes to the Intestinal Microbiome With Parenteral Nutrition
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142098/1/ncp0798.pd
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