A5032975281- Insect Pheromone Research and Control
- Crystallization and Solubility Studies
- Vestibular and auditory disorders
- X-ray Diffraction in Crystallography
- Acoustic Wave Phenomena Research
- Material Dynamics and Properties
- Neurobiology and Insect Physiology Research
- Astronomical Observations and Instrumentation
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Advanced Battery Technologies Research
- Organometallic Complex Synthesis and Catalysis
- Plant Toxicity and Pharmacological Properties
- Gamma-ray bursts and supernovae
- Catalytic Cross-Coupling Reactions
- Entomological Studies and Ecology
- Advanced Combustion Engine Technologies
- Plant and animal studies
- Ophthalmology and Eye Disorders
- Insect-Plant Interactions and Control
- Botanical Research and Chemistry
- Carbon Nanotubes in Composites
- Hearing, Cochlea, Tinnitus, Genetics
- Smart Materials for Construction
- Insect behavior and control techniques
Max Planck Institute for Polymer Research
2011-2016
Pennsylvania State University
2016
University of Applied Sciences Mainz
2015
Max Planck Society
1974-2013
Technische Universität Ilmenau
2003-2006
University of Würzburg
1989-2003
Charles Sturt University
2003
University of Siegen
1997-2002
Wayne State University
2000
Charles University
1995
This paper describes the Sloan Digital Sky Survey photometric system, a new five-color (u‧ g‧ r‧ i‧ z‧) wide-band CCD system with wavelength coverage from 3000 to 11 000 Å. The zero points will be based on an updated version of spectrophotometric AB<SUB>v</SUB> system. calibration, designated as AB<SUB>95</SUB>, is presented in this paper.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of Alkynylsilanes with [RhCl(PPr-iso3)2]: The Synthesis Four-Coordinate (Alkyne)-, Alkynyl-, and Vinylidenerhodium(I) Five- Six-Coordinate Alkynylhydridorhodium(III) Complexes from RC.tplbond.CSiMe3, Me3SiC.tplbond.CSiMe3, HC.tplbond.CSiMe3Helmut Werner, Matthias Baum, Dirk Schneider, Bettina WindmuellerCite this: Organometallics 1994, 13, 4, 1089–1097Publication Date (Print):April 1, 1994Publication History Published online1 May...
We report on the full control of phononic band diagrams for periodic stacks alternating layers poly(methyl methacrylate) and porous silica combining Brillouin light scattering spectroscopy theoretical calculations. These structures exhibit large robust on-axis gaps determined by longitudinal sound velocities, densities, spacing ratio. A facile tuning gap width is realized at oblique incidence utilizing vector nature elastic wave propagation. Off-axis propagation involves sagittal waves in...
Olfactory receptor responses (electroantennograms) were recorded from antennae of danaid butterflies. Antennae male and female queen butterflies (Danaus gilippus berenice) respond equally strongly to the hairpencil males, its crude extract, one two identified secretory components (the ketone). Responses second component diol) are weak. Hairpencils a related species, Lycorea ceres, which also contain ketone, effective in eliciting electroantennograms both sexes queen. another monarch...
Vinylidene complexes can be prepared in the coordination sphere of rhodium with silylalkynes, RCCSiMe3 whereas such were hitherto accessible only 1-alkynes, RCCH. The synthesis proceeds via a [1,2]-SiMe3 migration along alkyne CC bond, which is just as facile [1,2]-H shifts. corresponding formed intermediates also isolated.
Brillouin spectroscopy has been used to study the vibrational dynamics of clusters spherical polystyrene (PS) particles with different size. In a first approximation, spectra can be described by single particle model within continuum approximation Lamb theory. The yields excellent results for diameter d ≳ 500 nm, but fails in accounting lineshapes observed lowest frequency signals vibration spectrum smaller due broadening and shift lines confined vibrations. also predict an additional very...
We employ spontaneous Brillouin light scattering spectroscopy and detailed theoretical calculations to reveal identify elastic excitations inside the band gap of hypersonic hybrid superlattices. Surface cavity modes, their strength anticrossing are unambiguously documented fully controlled by layer thickness, elasticity, sequence design. This new soft matter based superlattice platform allows facile engineering density states opens pathways tunable phoxonic crystals.
We show that the mesoscale (∼200 nm) thermomechanical properties of polymer nanocomposites formed from silica nanoparticles (NPs) and poly(2-vinylpyridine) (P2VP) critically depend on their interfacial structure, which can be controlled by casting solvent. The composite films are solvent cast either pyridine (PYR) or methylethylketone (MEK), with uniform NP spatial distribution obtained in both cases. In MEK, our previous work has shown a bound layer P2VP is at surfaces, while no such when...
A material with anisotropic elastic mechanical properties and a direction-dependent hypersonic band gap is fabricated using ac electric field-directed convective self-assembly of colloidal ellipsoids. The frequency the gap, which detected in direction perpendicular to particle alignment entirely absent parallel alignment, effective sound velocities can be tuned by aspect ratio. We hypothesize that originates from primary eigenmode peak, $m$-splitted ($s$,1,2) mode, resonating medium. These...
In der Koordinationssphäre von Rhodium lassen sich mit Silylalkinen RC CSiMe 3 Vinylidenkomplexe herstellen, während derartige Komplexe bisher nur 1‐Alkinen RCCH zugänglich waren. Die Synthese verläuft über eine [1,2]‐SiMe ‐Wanderung entlang Alkin‐C‐C‐Bindung, die ähnlich problemlos wie [1,2]‐H‐Verschiebungen ist. Als Zwischenstufen auch entsprechenden Alkinkomplexe isolieren. magnified image
Pyrrolizidine alkaloid derivatives are present in the androconial (male scent) organs of Prittwitzia hymenaea, Mechanitis isthmia veritabilis, Tithorea harmónia fúria (Lep., Ithomiinae), Amauris echeria and Euploea sylvester Danainae). While ithomiines contain new pyrrolizidine derivative methyl hydroxydanaidoate, danaines known danaidone hydroxydanaidal. In addition, 2,2,6-trimethyl-2-cyclohexen-1,4-dione (oxoisophorone) related terpenoids have been identified from Amauris, as well flowers...
Disparlure, (cis-7,8-epoxy-2-methyloctadecane) the sex attractant of gypsy moth, Porthetria (Lymantria) dispar, attracts male nun Lymantria monacha, in field and is a highly effective olfactory stimulus electroantennogram (EAG) single-cell recordings. We have now analyzed extract 2000 abdominal tips female moth. Physical chemical tests, which included gas-chromatographic retention times, elution volumes from silica gel gel-silver nitrate columns, mass spectra, epoxide functionality,...