Spectral substructure and ultrafast excitation dynamics have been investigated in the chlorophyll (Chl) a and b Qy region of isolated plant light-harvesting complex II (LHC II). We demonstrate the feasibility of Nonlinear Polarization Spectroscopy in the frequency domain, a novel photosynthesis research laser spectroscopic technique, to determine not only ultrafast population ...
PubMed Central
... Accession Number : AD0648884. Title : THE INTENSITY OF THE ABSORPTION BANDS OF RUBY,. Corporate Author : FOREIGN ...
DTIC Science & Technology
Although visible and near IR reflectance spectra contain absorption bands that are characteristic of
NASA Technical Reports Server (NTRS)
The isolation of machinery vibration from rigid and nonrigid substructures is described in uncomplicated terms. One- and two-stage mounting systems, single and multiple antivibration mountings, and beamlike and platelike substructures are examined. A mach...
National Technical Information Service (NTIS)
... solid solution and work-hardening behavior of this material is found which allows us to propose an explanation for work softening and shear band ...
Cold-working produced bands of extended dislocations on two or more octahe ... Cold-working prior to aging promoted intragranular nu ...
NASA Website
... Accession Number : AD0465062. Title : NEAR INFRARED ABSORPTION BAND IN CADMIUM SULFIDE SINGLE CRYSTALS,. ...
The infrared emission bands (also known as the UIR bands.) have recently been observed in absorption
Forbidden absorption bands of diatomic O in Ar continuum region, determining rotational constants of
... Accession Number : AD0739310. Title : Concerning the Optical Absorption Band of the Hydrated Electron,. Corporate Author ...
... Accession Number : AD0615684. Title : APPROXIMATIVE BAND ABSORPTION AND TOTAL EMISSIVITY CALCULATIONS FOR H2O,. ...
... Accession Number : AD0612573. Title : APPROXIMATE BAND ABSORPTION AND TOTAL EMISSIVITY CALCULATIONS FOR CO2,. ...
... Title : A Broad Band Radiation Source for Optical Absorption Spectroscopy Measurements in Single Shot Transient Media. ...
... A 575-millimicron band was detected in the absorption spectrum and a 600-millimicron band in the reflection spectrum. ...
The 10 micrometer emission band observed in four different comets (Kohoutek, Wilson, Halley and Bradfield) has been generally attributed to silicates. In particular, the 11.3 micrometer substructure of the band has been fitted, up to now, using labortory data of crystalline olivine grains contained in interplanetary dust particles ...
NASA Astrophysics Data System (ADS)
... Accession Number : ADD851838. Title : INFRARED ABSORPTION IN PHOSPHORUS DOPED SILICON AND THE D- BAND. ...
... the parallel band and the perpendicular band. Bands of both the isotopic ... INFRARED SPECTROSCOPY, VIBRATION, ROTATION, MOLECULAR ...
... PHOTOELECTRIC EMISSION, VALENCE, CONDUCTION BANDS, X RAY SPECTROSCOPY, BAND SPECTRA, X RAY ABSORPTION ANALYSIS, ...
A model is derived for the resonance absorption of molecular bands composed of Lorentzian lines is suitable for calculating fluorescence from irradiated air. The model is based on an explicit functional form derived for the resonance absorption of a singl...
CP29 (the lhcb4 gene product), a minor photosystem II antenna complex, binds six chlorophyll (Chl) a, two Chl b, and two to three xanthophyll molecules. The Chl a/b Q(y) absorption band substructure of CP29 (purified from spinach) was investigated by nonlinear polarization spectroscopy in the frequency domain (NLPF) at room ...
PubMed
The host-guest charge transfer absorption of CN doped krypton and xenon matrices are identified through direct analogy with the previously assigned transitions of Cl/Kr and Cl/Xe. These intense, structured absorption bands appear with the onset at 245 nm in Kr and 360 nm in Xe. Excitation of the CN/Kr charge transfer ...
absorption features of hydrous minerals: alunite in band 5 , sericite/ montmorillonite in band 6, kaolinite in bands 5 and 6 , and chlorite in band 7, ...
Anharmonic vibrational force field calculations provide a quantitative understanding of the width and substructure of the linear IR-absorption spectrum of the O-H stretching mode in acetic acid dimers (CH3-COOH)2 and (CD3-COOH)2. Anharmonic coupling of the high-frequency upsilon(OH) mode to fingerprint and low-frequency modes is included resulting in 11- ...
The soft-x-ray absorption and magnetic circular dichroism (MCD) cross sections at the {ital L}{sub 2} and {ital L}{sub 3} core-level edges of Ni and Fe have been calculated using a one-electron tight-binding band-structure approach. The tight-binding scheme is taken from the work of Papaconstantopoulos, supplemented with the inclusion of spin-orbit ...
Energy Citations Database
Fourteen bands of ozone between 500 and 3300 per cm have been identified and values of the vibrational anharmonic constants determined. The integrated band absorptances of many of these bands have been measured from spectra of a 32 m path of ozone-oxygen ...
The reduced E1-transition probabilities and total photoabsorption cross sections sigmasub( gamma t) in sup(206, 208)Pb are calculated within the quasiparticle phonon nuclear model. Substructures, caused by the fragmented one-phonon states, are observed in...
ALMA will allow observations of prestellar cores searching for arc second scale substructure. Previous observations have shown that in nearby molecular clouds, most such sub-structure is filtered out by interferometers. With ALMA however, this situation may change. Another fertile field for ALMA should be the detection of molecular cloud material in ...
Forbidden absorption bands of carbon monoxide in vacuum UV region, noting rotational and vibrational
absorption bands, and we nd that the Goody random band model and the Lacis Hansen empirical parameterization produce comparable tropospheric ...
Absorption Bands and Atmospheric Windows ... by atmospheric gases such as water vapor, carbon dioxide, and ozone are known as absorption bands. In the ...
... Accession Number : AD0749879. Title : Infrared Absorption Bands of Nitrous Oxide. Descriptive Note : Final rept. 15 May 69-14 Jul 72,. ...
... INFRARED ABSORPTION IN HEATED AIR FROM VIBRATION-ROTATION BANDS OF NITRIC OXIDE by ... 52 vibration-rotation bands of nitric oxide. ...
... ABSORPTION OF RADIATION IN THE BANDS OF ATMOSPHERIC HNO SUB 3-ATMOSPHERIC AND OCEANIC PHYSICS, V8, NO2, P133-134. ...
A complete atlas of the 5 nu-1 absorption band of NH3 is presented together with measurements of the
... ADP014981 TITLE: A Broad Band Radiation Source for Optical Absorption Spectroscopy Measurements in Single Shot Transient Media ...
We have investigated the absorption spectra of Tl+ centers doped in ammonium and cesium halides crystals with the CsCl structure up to the vacuum ultraviolet energy range. In the NH4X:Tl+ (X = Cl, Br) crystals, the A, B and C absorption bands due to the intraionic transitions in the Tl+ ion are observed in the energy region below the ...
... Title : The Basic Parameters of Lines and Bands in the Vibrational Spectra of Raman Scattering and Infrared Absorption of Tetramethoxysilane ...
... Abstract : The pure rotational and vibrational-rotational absorption bands for a ... The experimental spectral band intensities and contours ...
... Abstract : The absorption bands situated at 1485 and 1295 Angstroms unequivocally and on some spectra the weak bands at 1505 and 1370 ...
... Descriptors : *EMISSION SPECTRA, *IONS, *SPECTRUM ANALYSIS, MOLECULAR VIBRATION, EXCITATION, SORPTION, BAND THEORY OF ...
... New bands in the spectrum of methylamine and its deuterium derivatives have been found and their absorption cross-section measured. ...
... Accession Number : AD0261240. Title : OPTICAL TRANSITIONS NEAR THE ABSORPTION EDGE IN CDS. I. - BAND STRUCTURE IN CDS. ...
... Title : INVESTIGATION OF THE ABSORPTION SPECTRA OF InSb-InAs SOLID SOLUTIONS WITH A VIEW TO BAND STRUCTURE,. ...
... It was found that the heavy absorption of the silicate base oil obscured absorption bands of all additives tested in it. In the petroleum base oils the ...
... Title : IMPURITY ABSORPTION DUE TO TRANSITIONS TO CONDUCTION BAND EDGE REGION IN PHOSPHORUS-DOPED SILICON. ...
... Title : CERTAIN RESULTS FROM STUDY OF THE ABSORPTION FUNCTIONS OF WATER VAPOR IN THE 114, 138, AND 187 MICRON BANDS ...
Failure behavior results are presented on some of the crash dynamics research conducted with concepts of aircraft elements and substructure which have not necessarily been designed or optimized for energy absorption or crash loading considerations. To ach...
Failure behavior results are presented from crash dynamics research using concepts of aircraft elements and substructure not necessarily designed or optimized for energy absorption or crash loading considerations. To achieve desired new designs incorporat...
... chromium(III) to neodymium(III) in mullite glass-ceramics. ... absorption bands, in addition to the bands due to Nd(III), consist of two bands peaking at ...
... 5-0 band contour and three within the 6-0 contour were selected ... energies selected from across the rotational band contours, increase monotonically ...
Melanosomes are specialized intracellular membrane bound organelles that produce and store melanin pigment. The composition of melanin and distribution of melanosomes determine the color of many mammalian tissues, including the hair, skin, and iris. However, the presence of melanosomes within a tissue carries potentially detrimental risks related to the cytotoxic indole-quinone intermediates ...
A model is derived for the resonance absorption of molecular bands composed of Lorentzian lines is suitable for calculating fluorescence from irradiated air. The model is based on an explicit functional form derived for the resonance absorption of a single Lorentzian line which properly accounts for the possibility of unequal emission ...
In this study it was hypothesized that the vibration-induced injuries or disorders in a substructure of human hand arm system are primarily associated with the vibration power absorption distributed in that substructure. As the first step to test this hypothesis, the major objective of this study is to develop a method for analyzing ...
This paper presents spectra in the 2 to 20 ?m range of quiescent cloud material located in the IC 5146 cloud complex. The spectra were obtained with NASA's Infrared Telescope Facility SpeX instrument and the Spitzer Space Telescope's Infrared Spectrometer. We use these spectra to investigate dust and ice absorption features in pristine regions of the cloud that are unaltered ...
... Title : Substructure Discovery in SUBDUE. ... Abstract : This paper describes the substructure discovery method used in the SUBDUE system. ...
... EXPERIMENTS FOR RELATING FIBER STRESS TO THE SHIFT OF THE PEAK IN THE ABSORPTION BAND OF POLYPROPYLENE FIBERS. ...
The 3250/cm 'ice' band observed in absorption and polarization in interstellar spectra is studied in
... ABSORPTION SPECTRA, BAND SPECTRA, STRESSES, MOLECULAR STRUCTURE, POTASSIUM COMPOUNDS, LITHIUM COMPOUNDS ...
... (Author). Descriptors : (*AROMATIC COMPOUNDS, BAND SPECTRA), (*NITROGEN HETEROCYCLIC COMPOUNDS, ABSORPTION SPECTRA ...
