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Showing 13 to 24 of 229 entries
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2 kW incoherent beam combining of four narrow-linewidth photonic crystal fiber amplifiers.

Optics express

Wirth C, Schmidt O, Tsybin I, Schreiber T, Peschel T, Brückner F, Clausnitzer T, Limpert J, Eberhardt R, Tünnermann A, Gowin M, ten Have E, Ludewigt K, Jung M.
PMID: 19188944
Opt Express. 2009 Feb 02;17(3):1178-83. doi: 10.1364/oe.17.001178.

We report on beam combining of four narrow-linewidth fiber amplifier chains, running at different wavelengths and each delivering 500 W optical output power. The main amplifier stage consists of a large mode area photonic crystal fiber. The four output...

High-power vacuum-ultraviolet anti-Stokes Raman laser with atomic selenium.

Optics letters

Ludewigt K, Pfingsten W, Möhlmann C, Wellegehausen B.
PMID: 19738786
Opt Lett. 1987 Jan 01;12(1):39-41. doi: 10.1364/ol.12.000039.

High-power operation of a selenium anti-Stokes Raman laser has been realized by application of an ArF excimer laser as a primary pump source. Radiation at 169 and 146 nm was generated with conversion efficiencies of up to 2.3% and...

A computational systems biology software platform for multiscale modeling and simulation: integrating whole-body physiology, disease biology, and molecular reaction networks.

Frontiers in physiology

Eissing T, Kuepfer L, Becker C, Block M, Coboeken K, Gaub T, Goerlitz L, Jaeger J, Loosen R, Ludewig B, Meyer M, Niederalt C, Sevestre M, Siegmund HU, Solodenko J, Thelen K, Telle U, Weiss W, Wendl T, Willmann S, Lippert J.
PMID: 21483730
Front Physiol. 2011 Feb 24;2:4. doi: 10.3389/fphys.2011.00004. eCollection 2011.

Today, in silico studies and trial simulations already complement experimental approaches in pharmaceutical R&D and have become indispensable tools for decision making and communication with regulatory agencies. While biology is multiscale by nature, project work, and software tools usually...

Measurement of air pollutants from satellites. 1: feasibility considerations.

Applied optics

Ludwig CB, Griggs M, Malkmus W, Bartle ER.
PMID: 20126220
Appl Opt. 1974 Jun 01;13(6):1494-509. doi: 10.1364/AO.13.001494.

The feasibility of observing air pollutants from satellite-borne sensors has been investigated. Radiative transfer calculations, using both line-by-line and band-model methods, have been made to establish the signal changes that originate from the presence of various amounts of pollutants...

Tumour angiogenesis in Epstein-Barr virus-associated post-transplant smooth muscle tumours.

Clinical sarcoma research

Jonigk D, Izykowski N, Maegel L, Schormann E, Ludewig B, Kreipe H, Hussein K.
PMID: 24398114
Clin Sarcoma Res. 2014 Jan 07;4(1):1. doi: 10.1186/2045-3329-4-1.

Epstein-Barr virus (EBV)-associated post-transplant smooth muscle tumours (PTSMT), are rare complications following organ/stem cell transplantation. Despite the mainly benign behaviour of PTSMT, alternative therapies are needed for those patients with progressive tumours. In tumours not approachable by surgery or...

Compaction dynamics of wet granular assemblies.

Physical review letters

Fiscina JE, Lumay G, Ludewig F, Vandewalle N.
PMID: 20867884
Phys Rev Lett. 2010 Jul 23;105(4):048001. doi: 10.1103/PhysRevLett.105.048001. Epub 2010 Jul 19.

The extremely slow compaction dynamics of wet granular assemblies is studied experimentally. The cohesion, due to capillary bridges between neighboring grains, is tuned using different liquids having specific surface tension values. The compaction dynamics of a cohesive packing obeys...

High average power spectral beam combining of four fiber amplifiers to 8.2 kW.

Optics letters

Wirth C, Schmidt O, Tsybin I, Schreiber T, Eberhardt R, Limpert J, Tünnermann A, Ludewigt K, Gowin M, ten Have E, Jung M.
PMID: 21847179
Opt Lett. 2011 Aug 15;36(16):3118-20. doi: 10.1364/OL.36.003118.

We report on the incoherent beam combination of the four narrow-linewidth fiber amplifier chains running at different wavelengths. Each main amplifier stage consists of a large-mode-area photonic crystal fiber delivering more than 2 kW of optical power. The four...

[Interpreting radiographs: prerequisites and procedure].

Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere

Ludewig E, Hartung K.
PMID: 22290553
Tierarztl Prax Ausg K Kleintiere Heimtiere. 2010 Jun 08;38(3):178-85.

No abstract available.

Genes and Mechanisms Involved in the Generation and Amplification of Basal Radial Glial Cells.

Frontiers in cellular neuroscience

Penisson M, Ladewig J, Belvindrah R, Francis F.
PMID: 31481878
Front Cell Neurosci. 2019 Aug 20;13:381. doi: 10.3389/fncel.2019.00381. eCollection 2019.

The development of the cerebral cortex relies on different types of progenitor cell. Among them, the recently described basal radial glial cell (bRG) is suggested to be of critical importance for the development of the brain in gyrencephalic species....

Social Learning in Horses-Fact or Fiction?.

Frontiers in veterinary science

Rørvang MV, Christensen JW, Ladewig J, McLean A.
PMID: 30238009
Front Vet Sci. 2018 Sep 06;5:212. doi: 10.3389/fvets.2018.00212. eCollection 2018.

Prima facie, the acquisition of novel behaviors in animals through observation of conspecifics seems straightforward. There are, however, various mechanisms through which the behavior of animals can be altered from observing others. These mechanisms range from simple hard-wired contagious...

New Azo-DMOF-1 MOF as a Photoresponsive Low-Energy CO.

ACS applied materials & interfaces

Prasetya N, Ladewig BP.
PMID: 30203961
ACS Appl Mater Interfaces. 2018 Oct 10;10(40):34291-34301. doi: 10.1021/acsami.8b12261. Epub 2018 Sep 25.

A new generation-2 light-responsive metal-organic framework (MOF) has been successfully synthesized using Zn as the metal source and both 2-phenyldiazenyl terephthalic acid and 1,4-diazabicyclo[2.2.2]octane (DABCO) as the ligands. It was found that Zn-azo-dabco MOF (Azo-DMOF-1) exhibited a photoresponsive CO

CHANGING OUR DIAGNOSTIC PARADIGM: MOVEMENT SYSTEM DIAGNOSTIC CLASSIFICATION.

International journal of sports physical therapy

Ludewig PM, Kamonseki DH, Staker JL, Lawrence RL, Camargo PR, Braman JP.
PMID: 29158950
Int J Sports Phys Ther. 2017 Nov;12(6):884-893.

Proper diagnosis is a first step in applying best available treatments, and prognosticating outcomes for clients. Currently, the majority of musculoskeletal diagnoses are classified according to pathoanatomy. However, the majority of physical therapy treatments are applied toward movement system...

Showing 13 to 24 of 229 entries