Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 1 to 12 of 86 entries
Sorted by: Best Match Show Resources per page
Cyberinfrastructure, science gateways, campus bridging, and cloud computing

science campus

Stewart CA, Knepper R, Pierce M.
GSID: I1-6Nhf_9AgJ
CA Stewart, R Knepper, MR Link, M Pierce… - … of Information Science …, 2015 - igi-global.com

… This article defines and discusses cyberinfrastructure and the related topics of science gateways and campus bridging; identifies future challenges in cyberinfrastructure; and discusses challenges and opportunities related to the evolution of cyberinfrastructure, “big data” …

Research Proposal: Barriers to new user and new domain adoption of the XSEDE Cyberinfrastructure

Computer and Information Science and Engineering Minority-Serving Institutions Research Expansion Program AND Program Evaluation

Knepper R.
GSID: AKc0FXgbrhoJ
R Knepper - … on Computer Science and Information Systems …, 2015 - ieeexplore.ieee.org

This research proposal proposes the examination of user attitudes about the Extreme Science and Engineering Discovery Environment (XSEDE). The XSEDE project supports basic research with a common system for making use of national cyberinfrastructure. The systems and infrastructure that...

Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish

STEM and diversification

Kahilainen K, Knudsen R, Præbel K, Siwertsson A.
GSID: gmHE1qwJ3iQJ
A Siwertsson, R Knudsen, K Kahilainen, K Præbel… - 2010 - munin.uit.no

… in or closely connected with the main stem (Fig. 4). In the Tana watercourse, a similar pattern could not be explored since lakes are generally absent from the main stem. Notably, all six …

Red Cloud and Aristotle: campus clouds and federations

science campus

Knepper R, Barker B.
GSID: FF6DwKk557kJ
R Knepper, S Mehringer, A Brazier, B Barker… - Proceedings of the …, 2019 - dl.acm.org

… We detail Red Cloud, Cornell’s campus research cloud, and some of the work undertaken by the … campus cloud resources and data sources, supporting a range of science use cases. We discuss the lessons learned from helping researchers...

High-efficiency 60 W TEM(00) Nd:YVO(4) oscillator pumped at 888 nm.

Optics letters

McDonagh L, Wallenstein R, Knappe R, Nebel A.
PMID: 17072402
Opt Lett. 2006 Nov 15;31(22):3297-9. doi: 10.1364/ol.31.003297.

We propose a technique for pumping Nd:YVO(4) with high optical power at 888nm while making absorption independent of the pump light polarization state. This is especially suitable for systems end pumped by high-power, high-brightness fiber-coupled diode sources associated with...

47 W, 6 ns constant pulse duration, high-repetition-rate cavity-dumped Q-switched TEM(00) Nd:YVO(4) oscillator.

Optics letters

McDonagh L, Wallenstein R, Knappe R.
PMID: 17072404
Opt Lett. 2006 Nov 15;31(22):3303-5. doi: 10.1364/ol.31.003303.

We report on a cavity-dumped Q-switched TEM(00) Nd:YVO(4) oscillator offering a unique combination of high power, constant short pulse duration, and high repetition rate, suppressing the gain dependence of pulse duration in classical Q-switched oscillators. Its performance is compared...

Investigation of extraction procedures and HPLC-DAD/MS for the determination of the brominated flame retardant tetrabromobisphenol A bis(2,3-dibromopropylether) in environmental samples.

Analytical and bioanalytical chemistry

Köppen R, Becker R, Jung C, Piechotta C, Nehls I.
PMID: 16552538
Anal Bioanal Chem. 2006 Apr;384(7):1485-92. doi: 10.1007/s00216-006-0339-z. Epub 2006 Mar 21.

A method for the determination of the novel brominated flame retardant tetrabromobisphenol A bis(2,3-dibromopropylether), 1,1'-(isopropylidene)bis[3,5-dibromo-4-(2,3-dibromo-propoxy)-benzene] (TBBPA-dbpe), was developed. Technical TBBPA-dbpe was purified and the results of a thorough physical characterisation are reported. The application of APCI-MS is discussed and...

Enantioselective preparative HPLC separation of the HBCD-Stereoisomers from the technical product and their absolute structure elucidation using X-ray crystallography.

Chirality

Koeppen R, Becker R, Emmerling F, Jung C, Nehls I.
PMID: 17226748
Chirality. 2007 Mar;19(3):214-22. doi: 10.1002/chir.20366.

1,2,5,6,9,10-Hexabromocyclododecane (HBCD) is a widely used flame retardant, which tends to persist in the environment and accumulates in biota. The six stereoisomers (three racemates named alpha-, beta-, and gamma-HBCD) of the technical mixture were isolated with high-performance liquid chromatography...

Colliding shock lens as an intracavity Q-switch element.

Applied optics

Lisi N, Michaelis MM, Buccellato R, Kuppen M, Prause A.
PMID: 21037614
Appl Opt. 1995 Feb 20;34(6):942-5. doi: 10.1364/AO.34.000942.

We show how a varifocal pulsed gas lens, the colliding shock lens, can be used as an intracavity element to Q switch a ruby laser. By placement of the shock lens in tandem with a second lens, a giant...

Impact of Walking and Running on the Heel bone: the Adventist Health Study-2.

Journal of scientific research and reports

Lousuebsakul-Matthews V, Thorpe D, Knutsen R, Beeson WL, Fraser GE, Knutsen SF.
PMID: 30740466
J Sci Res Rep. 2015;7(3):165-177. doi: 10.9734/JSRR/2015/17962. Epub 2015 Apr 30.

AIMS: Physical activity is well recognized for its bone health benefit. We examined the benefit of walk/run/jog on bone health using broadband ultrasound attenuation (BUA) of the calcaneus.METHODOLOGY: Caucasian and African American males (n=593) and females (n=1,106) had their...

From clear lakes to murky waters - tracing the functional response of high-latitude lake communities to concurrent 'greening' and 'browning'.

Ecology letters

Hayden B, Harrod C, Thomas SM, Eloranta AP, Myllykangas JP, Siwertsson A, Praebel K, Knudsen R, Amundsen PA, Kahilainen KK.
PMID: 30793453
Ecol Lett. 2019 May;22(5):807-816. doi: 10.1111/ele.13238. Epub 2019 Feb 21.

Climate change and the intensification of land use practices are causing widespread eutrophication of subarctic lakes. The implications of this rapid change for lake ecosystem function remain poorly understood. To assess how freshwater communities respond to such profound changes...

High power laser pulses with voltage controlled durations of 400 - 1000 ps.

Optics express

Harth F, Ulm T, Lührmann M, Knappe R, Klehr A, Hoffmann T, Erbert G, L'huillier JA.
PMID: 22453379
Opt Express. 2012 Mar 26;20(7):7002-7. doi: 10.1364/OE.20.007002.

We report on the generation and amplification of pulses with pulse widths of 400 - 1000 ps at 1064 nm. For pulse generation an ultra-fast semiconductor modulator is used that modulates a cw-beam of a DFB diode laser. The...

Showing 1 to 12 of 86 entries