1,965 research outputs found
Ultrastructural and immunocytochemical features of the epidermis of the lizard Heloderma suspectum indicate richness in lipids and lack of a specialized shedding complex
No full textThe epidermis of the venomous lizard Heloderma suspectum has been studied for
detecting generalized and desert adaptations. A thick and non-completely syncytial
beta-keratin layer is followed by 60–90 layers of mesos-cells. Non-lamellated
or sparse lamellated lipid material is seen among mesos-cells where lipids
form the main barrier against water loss. The alpha-layer is made of interlocking
cells with irregular perimeter that are connected through desmosomal remnants.
Immunocytochemistry shows that beta-keratin is present in beta-cells,
disappears in mesos-cells but is diffuse in alpha-cells. Alpha-keratin is seen in
mesos-cells but lowers in alpha-cells where alpha-keratin probably mixes with
beta-keratin. Although the sequence of layers formed during the renewal stage
of the epidermis was not available, a specialized shedding layer with an outer
oberhautchen faced to an inner clear layer appears absent in this species. This
condition suggests that shedding occurs at the boundary between the outer
(old) alpha-layer and the inner (new) beta-layer formed underneath the alphalayer.
The thick mesos layer is likely an efficient adaptation to limit water loss
in desert conditions while the poorly specialized shedding complex may suggest
a primitive stage in the evolutio
ND4 nexus file
No full textAligned ND4 locus originally from Rodríguez-Robles JA, DeNardo DF, Staub RE (1999) Phylogeography of the California mountain kingsnake, Lampropeltis zonata (Colubridae). Molecular Ecology 8, 1923-1934
Elastic-DF: Scaling Performance of DNN Inference in FPGA Clouds through Automatic Partitioning
No full textCustomized compute acceleration in the datacenter is key to the wider roll-out of applications based on deep neural network (DNN) inference. In this article, we investigate how to maximize the performance and scalability of field-programmable gate array (FPGA)-based pipeline dataflow DNN inference accelerators (DFAs) automatically on computing infrastructures consisting of multi-die, network-connected FPGAs. We present Elastic-DF, a novel resource partitioning tool and associated FPGA runtime infrastructure that integrates with the DNN compiler FINN. Elastic-DF allocates FPGA resources to DNN layers and layers to individual FPGA dies to maximize the total performance of the multi-FPGA system. In the resulting Elastic-DF mapping, the accelerator may be instantiated multiple times, and each instance may be segmented across multiple FPGAs transparently, whereby the segments communicate peer-to-peer through 100 Gbps Ethernet FPGA infrastructure, without host involvement. When applied to ResNet-50, Elastic-DF provides a 44% latency decrease on Alveo U280. For MobileNetV1 on Alveo U200 and U280, Elastic-DF enables a 78% throughput increase, eliminating the performance difference between these cards and the larger Alveo U250. Elastic-DF also increases operating frequency in all our experiments, on average by over 20%. Elastic-DF therefore increases performance portability between different sizes of FPGA and increases the critical throughput per cost metric of datacenter inference. Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Computer Engineerin
The Agassiz’s Desert Tortoise Genome Provides a Resource for the Conservation of a Threatened Species
No full textThese data are associate with the following manuscript:
The Agassiz’s Desert Tortoise Genome Provides a Resource for the Conservation of a Threatened Species
Tollis M, DeNardo DF, Cornelius JA, Dolby GA, Edwards T, Henen BT, Karl AE, Murphy RW, Kusumi
The Agassiz’s Desert Tortoise Genome Provides a Resource for the Conservation of a Threatened Species
No full textThese data are associate with the following manuscript:
The Agassiz’s Desert Tortoise Genome Provides a Resource for the Conservation of a Threatened Species
Tollis M, DeNardo DF, Cornelius JA, Dolby GA, Edwards T, Henen BT, Karl AE, Murphy RW, Kusumi
Hydrodynamical turbulence by fractal fourier decimation
No full textWe present a systematic numerical investigation of high-resolution 3D isotropic and homogeneous turbulence resolved on a decimated set of Fourier modes. Fractal decimation acts to decrease the effective dimensionality of the flow by allowing triadic interactions only in a set of Fourier modes N(k) proportional to k^DF for large k. While keeping the symmetries of the original 3D Navier-Stokes equations unchanged, a dramatic change in small-scale statistics is detected at decreasing the fractal dimension DF . Already at fractal dimension DF = 2.8, a global self-similar behaviour is observed in the inertial range of scales, the consequence of such transition are the restoration of the scaling symmetry and vorticity distribution that becomes close to Gaussian. We relate the results to the different roles of local vs non-local interactions in the energy transfer range
'Response by the author, Daniel F. Vukovich.'
No full textResponse by the author (Vukovich) to a review of Illiberal China (my 2019 monograph
DF AND HF LASER SPECTRA
No full textW. B. Roh and K. Narahari Rao, J. Mol. Spectrosc. 49, 317 (1974).""Author Institution: Department of Physics, The Ohio State University; Department of Electrical Engineering, The Ohio State UniversityA pulsed laser was used as a source to study DF and HF infrared laser spectra with a grating spectrometer. The rotational structure observed for the 1-0, 2-1, and 3-2 bands of DF, and the 1-0 and 2-1 bands of HF has been measured by following a procedure similar to that used for the CO laser Molecular constants derived by combining these laser measurements with other available data will be presented
OPTOACOUSTIC MEASUREMENT OF DF LASER ABSORPTION BY METHANE
No full textAuthor Institution:An optoacoustic system has been constructed for measurement of absorption of DF laser radiation. Absorption by methane in Argon and Nitrogen has been measured at 15 DF laser lines in the 3.6 – 4.0 region. Construction and calibration of the spectrophone will be discussed
Comparison of system architecture and converter topology for a solar powered electric vehicle charging station
No full textAccepted Author ManuscriptOld - EWI-ESE-DC&S DC systems & StoragePhotovoltaic Materials and Device
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