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Showing 1 to 12 of 261 entries
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Using Lin-Kernighan Algorithm for Look-up Table compression to improve code density

field instruction

Bonny T, Henkel J.
GSID: 7FeJ-Agq0jAJ
T Bonny, J Henkel - Proceedings of the 16th ACM Great Lakes …, 2006 - dl.acm.org

The presented work uses code compression to improve the design efficiency of an embedded system. In particular, we present a method and architecture for compressing the …

Arithmetic coding for low power embedded system design

field instruction

Henkel J.
GSID: NfMM3QSXoagJ
H Lekatsas, J Henkel, W Wolf - Proceedings DCC 2000. Data …, 2000 - ieeexplore.ieee.org

We present a novel algorithm that assigns codes to instructions during instruction code compression in order to minimize bus-related bit-toggling and thus reduce power …

Passive acoustic observations of tide height in the Iroise Sea using ambient noise.

The Journal of the Acoustical Society of America

Kinda GB, Bonnel J.
PMID: 26428830
J Acoust Soc Am. 2015 Sep;138(3):EL299-304. doi: 10.1121/1.4929740.

Considering a broadband motionless source in a waveguide with a depth that varies with time, the time-frequency representation of the acoustic intensity shows a striation pattern than can be explained using the depth-frequency waveguide invariant. This phenomenon is used...

Thermodynamic laws in isolated systems.

Physical review. E, Statistical, nonlinear, and soft matter physics

Hilbert S, Hänggi P, Dunkel J.
PMID: 25615053
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Dec;90(6):062116. doi: 10.1103/PhysRevE.90.062116. Epub 2014 Dec 09.

The recent experimental realization of exotic matter states in isolated quantum systems and the ensuing controversy about the existence of negative absolute temperatures demand a careful analysis of the conceptual foundations underlying microcanonical thermostatistics. Here we provide a detailed...

Defect formation dynamics in curved elastic surface crystals.

Soft matter

Stoop N, Dunkel J.
PMID: 29487938
Soft Matter. 2018 Mar 28;14(12):2329-2338. doi: 10.1039/c7sm02233f. Epub 2018 Feb 28.

Topological defects shape the material and transport properties of physical systems. Examples range from vortex lines in quantum superfluids, defect-mediated buckling of graphene, and grain boundaries in ferromagnets and colloidal crystals, to domain structures formed in the early universe....

Switching between Inner- and Outer-Sphere PCET Mechanisms of Small-Molecule Activation: Superoxide Dismutation and Oxygen/Superoxide Reduction Reactivity Deriving from the Same Manganese Complex.

Journal of the American Chemical Society

Kenkel I, Franke A, Dürr M, Zahl A, Dücker-Benfer C, Langer J, Filipović MR, Yu M, Puchta R, Fiedler SR, Shores MP, Goldsmith CR, Ivanović-Burmazović I.
PMID: 28111938
J Am Chem Soc. 2017 Feb 01;139(4):1472-1484. doi: 10.1021/jacs.6b08394. Epub 2017 Jan 23.

Readily exchangeable water molecules are commonly found in the active sites of oxidoreductases, yet the overwhelming majority of studies on small-molecule mimics of these enzymes entirely ignores the contribution of water to the reactivity. Studies of how these enzymes...

The effect of divalent metal ions on the activity of Mg(++) depleted ribulose-1,5-bisphosphate oxygenase.

Planta

Wildner GF, Henkel J.
PMID: 24318063
Planta. 1979 Jan;146(2):223-8. doi: 10.1007/BF00388236.

Ribulose-1,5-bisphosphate carboxylase-oxygenase is deactivated by removal of Mg(++). The enzyme activities can be restored to a different extent by the addition of various divalent ions in the presence of CO2. Incubation with Mg(++) and CO2 restores both enzyme activities,...

Compressed sensing for wideband wavenumber tracking in dispersive shallow water.

The Journal of the Acoustical Society of America

Le Courtois F, Bonnel J.
PMID: 26328676
J Acoust Soc Am. 2015 Aug;138(2):575-83. doi: 10.1121/1.4926381.

In shallow water zones and at low frequency, seabed and water column properties can be estimated from the acoustic wavenumbers using inversion algorithms. When considering horizontal line arrays (HLA) and narrowband sources, the wavenumbers can be evaluated with classic...

Bone Regeneration Based on Tissue Engineering Conceptions - A 21st Century Perspective.

Bone research

Henkel J, Woodruff MA, Epari DR, Steck R, Glatt V, Dickinson IC, Choong PF, Schuetz MA, Hutmacher DW.
PMID: 26273505
Bone Res. 2013 Sep 25;1(3):216-48. doi: 10.4248/BR201303002. eCollection 2013 Sep.

The role of Bone Tissue Engineering in the field of Regenerative Medicine has been the topic of substantial research over the past two decades. Technological advances have improved orthopaedic implants and surgical techniques for bone reconstruction. However, improvements in...

Meaning of temperature in different thermostatistical ensembles.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Hänggi P, Hilbert S, Dunkel J.
PMID: 26903095
Philos Trans A Math Phys Eng Sci. 2016 Mar 28;374(2064):20150039. doi: 10.1098/rsta.2015.0039.

Depending on the exact experimental conditions, the thermodynamic properties of physical systems can be related to one or more thermostatistical ensembles. Here, we survey the notion of thermodynamic temperature in different statistical ensembles, focusing in particular on subtleties that...

Adequate Vitamin D.

Maternal and pediatric nutrition

Finkel J, Cira C, Mazzella L, Bartyzel J, Ramanna A, Strimel K, Waturuocha A, Musser N, Burress J, Brammer S, Wetzel R, Horzempa J.
PMID: 27213185
Matern Pediatr Nutr. 2015;2(1). doi: 10.4172/2472-1182.1000105. Epub 2015 Dec 28.

Vitamin D is a secosterol that is naturally synthesized in the skin upon contact with ultraviolet rays. This vitamin can also be acquired from dietary and nutritional supplements. The active form, vitamin D

Structure Determination of the Products from the Acid-Catalyzed Condensation of Indole with Acetone.

The Journal of organic chemistry

Noland WE, Konkel MJ, Konkel LM, Pearce BC, Barnes CL, Schlemper EO.
PMID: 11666959
J Org Chem. 1996 Jan 26;61(2):451-454. doi: 10.1021/jo951596p.

Four of the previously reported compounds obtained from the acid-catalyzed condensation of indole with acetone are now assigned the following structures: cis-4,4a,9,9a-tetrahydro-2-(1H-indol-3-yl)-4,4-dimethyl-3H-carbazole (2a), 1,1',4,4'-tetrahydro-1,1,1',1'-tetramethyl-3,3'(2H,2'H)-spirobi[cyclopent[b]indole] (4), 4,4a-dihydro-2-(3-1H-indolyl)-4,4-dimethyl-3H-carbazol-4a-ol (7), and 5-(2-aminophenyl)-1,3,4,5-tetrahydro-1,1,4,4-tetramethylcyclopent[kl]acridine (8). The structure of the novel rearrangement product 8 was...

Showing 1 to 12 of 261 entries