We give sufficient conditions for the presence of the absolutely continuous spectrum of a Schroedinger operator on a regular rooted tree without loops (also called regular Bethe lattice or Cayley tree)

We show that the integrated density of states of the almost Mathieu operator is absolutely continuous if and only if the coupling is non-critical. We deduce for subcritical coupling that the spectrum is purely absolutely continuous for almost every phase, settling the measure-theoretical case ...

Absolute and convective instabilities of spirals are investigated using the continuous and the so-called absolute spectrum. It is shown that the nature of transport, induced by an absolute instability, is determined by spectral data of the asymptotic wave trains. The results are applied to core ...

... Title : STUDY OF THE ABSOLUTE FLUX AND ENERGY SPECTRUM OF COSMIC RAY NEUTRONS IN THE ATMOSPHERE. ...

We give a description of some spectral properties of almost-periodic Hamiltonians. We put the stress on some particular points of the proofs of the existence of absolutely continuous or pure point spectrum. (ERA citation 10:015375)

We prove that the Schroedinger operator has purely absolutely continuous spectrum for an arbitrary constant external field F, for a large class of potentials; this result applies to many periodic, almost periodic and random potentials and in particular to...

The notion of partly gentle perturbation, an extension of Friedrichs' notion of gentle perturbation, was introduced by P. A. Rejto. For a selfadjoint operator H sub 0 with an absolutely continuous spectrum, Friedrichs uses the notion of gentle perturbatio...

Quasi-one-dimensional stochastic Dirac operators with an odd number of channels, time reversal symmetry but otherwise efficiently coupled randomness, are shown to have one conducting channel and absolutely continuous spectrum of multiplicity two. This follows by adapting the criteria of Guivarch-Raugi and Goldsheid-Margulis to the ...

We analyze the spectrum of the generalized Schr�dinger operator in L2(R?), ? ? 2, with a general local, rotationally invariant singular interaction supported by an infinite family of concentric, equidistantly spaced spheres. It is shown that the essential spectrum consists of interlaced segments of the dense point and absolutely ...

... Title : Characteristic Functional of a Probability Measure Absolutely Continuous with Respect to a Gaussian Radon Measure. ...

For one-dimensional Schr�dinger operators with potentials q subject to ?n=-??(?nn+1|q(x)|dx)2absolutely continuous spectrum is [0,?), extending the 1999 result due to Dieft-Killip. As a by-product we show that under the same condition the sequence of the negative eigenvalues is 3/2-summable improving the ...

The translation action of ? d on a translation bounded measure ? leads to an interesting class of dynamical systems, with a rather rich spectral theory. In general, the diffraction spectrum of ?, which is the carrier of the diffraction measure, lives on a subset of the dynamical spectrum. It is known that, under some mild assumptions, a pure point ...

... Title : Absolute Continuity and Mutual Information for Gaussian Mixtures. ... are considered for problems involving a Gaussian mixture process (N sub t ...

We present three new absolutely calibrated continuous stellar spectra from 3 to 35 ?m, constructed as far as possible from actual observed spectral fragments taken from the Kuiper Airborne Observatory (KAO), and the IRAS Low Resolution Spectrometer (LRS). These stars-?1 Cen, ? TrA, and ? Car-augment our previous archive of complete ...

Data presented on the solar constant and solar spectrum are evaluated. The absolute accuracy of the data is discussed in terms of the variability of the parameters to be measured. Topics discussed include: distribution of the solar energy as a function of wavelength and variations in solar irradiance. A project developed for more precise and accurate ...

It is shown that time and entropy operators may exist as superoperators in the framework of the Liouville space provided that the Hamiltonian has an unbounded absolutely continuous spectrum. In this case the Liouville operator has uniform infinite multiplicity and thus the time operator may exist. A general proof of the Heisenberg ...

A system for measuring radiation in the laboratory or at a site to aid in determining whether to erect a solar energy installation at that site includes a positioner and a sensor. The sensor, which is mounted on the positioner, includes a rotating semispherical chopper and an integrating sphere for collecting radiation in three modes. A broad-band detector measures the irradiance from the ...

A system of a particle and a harmonic oscillator, which have pure point spectrum if uncoupled, is known to acquire absolutely continuous spectrum when the particle and the oscillator are coupled by a sufficiently strong point interaction. Here the simple dynamical mechanism underlying this phenomenon is exposed. ...

The continuous gamma-ray spectrum (inner bremsstrahlung), accompanying orbital electron capture in Cs131, has been observed by the method of scintillation spectrometry. The absolute intensity of the gamma radiation has been measured and compared with the total disintegration rate. The end point of the gammaray distribution was found to ...

The Far InfraRed Absolute Spectrophotometer (FIRAS) was built to measure the spectrum of di use emission from. 1 to 100 cm 1 , with particular attention to ...

As an alternative to the conventional optical frequency scanning technique, an angular spectrum scanning technique is proposed for absolute interferometry. Instead of sweeping the optical frequency over a wide range of spectrum, we sweep the angular spectrum by changing the incident angle of a monochromatic plane ...

In the present work, the authors show that in the ground states of the infinite-volume limits of both the spin-1/2 anisotropic antiferromagnetic Heisenberg model (in dimensions d [ge] 2), and the ferromagnetic Ising model in a strong transverse field (in dimensions d [ge] 1) there is an interval in the spectrum above the mass gap which contains a ...

We investigate the optical transmission fingerprints in structures that exhibit deterministic disorders. A class of models that has attracted particular attention in this context are the quasiperiodic dielectric multilayers that obey a substitutional sequence. These substitutional sequence are characterized by the nature of their Fourier spectrum, which can be dense pure point ...

A coherent picture of localization in one-dimensional aperiodically ordered systems is still missing. We show the presence of purely singular continuous spectrum for a discrete system whose modulation sequence has a correlation measure which is absolutely continuous, such as for a random sequence. The system ...

A method for determination of absolute intensities of gamma-transitions in neutron resonances is developed. It is based on comparing two time-of-flight spectra measured simultaneously: spectrum of capture in the isotope under study and spectrum of neutron...

CONTENTSIntroduction � 1. The group of admissible transformations for measures corresponding to diffusion processes � 2. The absolute continuity of distributions of functionals References

... absolutely; and second, equal-spectrum filtering, where the ... GRAVITY, MEASUREMENT), GEODESICS, ELECTRIC FILTERS, LEAST SQUARES ...

... source in water and in two aluminum and water mixtures. ... By use of experimentally determined counting efficiencies, absolute saturation activities ...

An independent measure of the absolute brightness of the disk-averaged spectrum measured by Orton et

... ARTIFICIAL EARTH SATELLITES IN THE ULTRAVIOLET REGION OF THE SPECTRUM-ATMOSPHERIC AND OCEANIC PHYSICS, V5, NO3, P166 ...

work on the autoionization resonances and configuration mixing in the emission spectrum of Cd I. The absolute photometric ...

Design and parameters of the photoionization quantometer are given. It is a combination of photoionization chamber with time-of-flight mass spectrometer. The quantometer is an absolute detector of radiation in the wavelength interval (100--0.1 nm) due to the fact that photoionization and electron-impact ionization cross sections of gases are used for ...

... Descriptors : *SPECTRUM ANALYZERS, *PULSE ANALYZERS, SIGNAL TO NOISE RATIO, CONTINUOUS WAVES, CHIPS(ELECTRONICS ...

This paper continues the analysis of the integrated intensities of substituted benzenes. In particular, the absolute integrated vibrational intensities of bromobenzene-d5 are presented. The previously reported imaginary molar polarizability spectrum of bromobenzene-d5 was fitted with 231 CDHO bands. The majority of the bands are ...

We present five new absolutely calibrated continuous stellar spectra from 1.2 to 35 ?m, constructed as far as possible from actual observed spectral fragments taken from the ground, the Kuiper Airborne Observatory (KAO), and the IRAS Low Resolution Spectrometer (LRS). These stars -- ? Peg, ? Boo, ? And, ? Gem, and ? Hya -- augment our already created ...

... Title : ON THE ORIGIN OF THE CONTINUOUS SPECTRUM OF COMETS. Corporate Author : LIEGE UNIV (BELGIUM). Report Date : 30 SEP 1958. ...

This paper establishes dynamical localization properties of certain families of unitary random operators on the d-dimensional lattice in various regimes. These operators are generalizations of one-dimensional physical models of quantum transport and draw their name from the analogy with the discrete Anderson model of solid state physics. They consist in a product of a deterministic unitary ...

... The most significant among them, called absolute stability, is characterized by the existence of a continuous generalized Liapunov function with a ...

... Continuous slow infusion of heparin saline invalidates absolute figures for ... Veratramine, an antagonist to the cardioaccelerator action of epinephrine ...

A definition of scattering states is given. It is shown that such states must belong to the absolutely continuous part of the spectrum of the total hamiltonian whenever scattering systems are considered. Such embedding may be proper unless the quantum system is physically admissible. The Moller wave operators are analyzed ...

We study a matrix-valued Schr�dinger operator with random point interactions. We prove the absence of absolutely continuous spectrum for this operator by proving that, away from a discrete set, its Lyapunov exponents do not vanish. For this we use a criterion by Gol�dsheid and Margulis and we prove the Zariski denseness, in the ...

The approach to realize the optimal chirped probe pulse length for an arbitrary pulsed terahertz (THz) signal measured with the spectral-encoding technique was investigated by simulation. It was found that either the maximum positive peak or the absolute value of the strongest negative peak of the normalized difference between the probe spectrum modulated ...

Consider a bunch of interacting electrons confined in a quantum dot. The later is suddenly coupled to semi-infinite biased leads at an initial instant t = 0. We identify the dominant contribution to the ergodic current in the off-resonant transport regime, in which the discrete spectrum of the quantum dot is well separated from the absolutely ...

We consider higher-dimensional generalizations of the classical one-dimensional 2-automatic paperfolding and Rudin-Shapiro sequences on {\\bb N} . This is done by considering the same automaton-structure as in the one-dimensional case, but using binary number systems in {\\bb Z}^m instead of in {\\bb N} . The correlation function and the diffraction spectrum for the resulting ...

A prototype spectrometer has been developed for space applications requiring long term absolute EUV photon flux measurements. The energy spectrum of the incoming photons is transformed directly into an electron energy spectrum by taking advantage of the p...

... of uncertainty in the ionospheric height estimation and its temporal stability. ... This effort involved establishing a continuous absolute Time of Arrival ...

Identify absolute extrema and local extrema given the graph of a function and find the absolute extrema of a continuous function on a (bounded) closed interval.

The nitrogen fluorescence induced in air is used to detect ultra-high-energy cosmic rays (UHECR) and to measure their energy. The precise knowledge of the absolute fluorescence yield is the key quantity to improve the accuracy on the cosmic ray energy. The total yield has been measured in dry air using a 90Sr source and a [300 430 nm] filter. The fluorescence yield in air is ...

Absolute intensities for the center of the solar disc are given in the spectral range from 6389 to 12480 A. The observations are made in exactly the same manner as described in Z. Astrophys. 55:269(1962) for the visible part of the spectrum. The infrared ...

We have developed a prototype spectrometer for space applications requiring long term absolute EUV photon flux measurements. In this recently developed spectrometer, the energy spectrum of the incoming photons is transformed directly into an electron ener...

The absolute momentum spectrum of muons at a depth of 7.2 kg cm-/ of sandstone rock is measured in the range 2 to 200 Bev/c. The spectrometer and the method of analysis are described in detail. The production spectrum deduced from the data, making suitable assumptions about momentum loss, agrees with that obtained from the ...

The West Virginia University helicon source group routinely employs laser induced fluorescence (LIF) to measure velocity distribution functions (VDFs) of argon ions, argon neutrals, helium neutrals and xenon ions. We are developing a continuous wave cavity ring down spectroscopy (CW-CRDS) diagnostic with a narrow linewidth, tunable diode laser as an alternative technique to ...

Absolute absorption cross sections for selected lines of the OH stretch overtone 2?(1) of the cis-isomer of nitrous acid HONO have been measured in the range 6623.6-6645.6 cm(-1) using the continuous wave cavity ring-down spectroscopy (cw-CRDS) technique. HONO has been generated by two different, complementary methods: in the first method, HONO has been ...

Dec 7, 2006 ... Far Infrared Absolute Spectrophotometer (FIRAS). The cosmic microwave background (CMB) spectrum is that of a nearly perfect blackbody with ...

particularly diagnostic of the common asteroidal refractories, olivine and pyroxene. The lack of a clear 1.73-pm absorption in the ring spectrum ...

Apr 18, 2008 ... FIRAS (Far Infrared Absolute Spectrophotometer) - The cosmic microwave background (CMB) spectrum is that of a nearly perfect blackbody ...

In order to determine the extent of agreement among laboratory radiometric .... visible region of the spectrum and greater than 10% in and mound the water ...

The spectral distribution and absolute intensity of the collision-induced Raman spectrum of He is measured and compared to wave mechanical calculations. (AIP)

The use of a separation step, such as liquid chromatography, prior to inductively coupled plasma mass spectrometry (ICP-MS) has become a common tool for highly selective and sensitive analyses. This type of coupling has several benefits including the ability to perform speciation analysis or to remove isobaric interferences. Several limitations of conventional instruments result from the necessity ...

It was possible to derive and correlate the following baryon properties: (a) absolute values of the magnetic moments, (b) electric and magnetic form factors of proton and neutron, (c) mass spectrum, and (d) decay rates, in a relativistic theory based on t...

Frequency Spectrum of Coupled Stochastic Neurons with Refractoriness Mona Spiridon MANTRA, Center refractory period and fire with a stochastic rate that depends on the input they receive. An analytical of stochastic neurons with absolute refractoriness. We idealize the biological situation and assume

The neutron spectrum was measured using a combination of foil detectors. The absolute thermal flux was measured with gold foils using a beta-gamma coincidence counting technique; the epithermal spectrum was measured by taking cadmium ratios with three dif...

Imaging spectrographs have traditionally been utilized in aerial and remote sensing applications. A novel, compact and inexpensive imaging spectrograph developed by VTT Electronics is now available. It contains a multichannel fiber optic sensor head, a dispersive prism-grating-prism (PGP) component and digital CCD matrix camera capable of area integration. In rolled steel manufacturing, a ...

In this paper we resolve in the affirmative a question of Heinonen on the absolute continuity of quasisymmetric mappings defined on subsets of Euclidean spaces. The main ingredients in the proof are extension results for quasisymmetirc mappings and metric...

A necessary and sufficient condition in terms of the mth divided differences of a function is given under which the m-1st derivative of the function is absolutely continuous. A similar condition is found to characterize when the mth derivative of the func...

... Descriptors : *OPERATORS(MATHEMATICS), *QUANTUM THEORY, FUNCTIONAL ANALYSIS, OPERATORS(MATHEMATICS), PERTURBATION ...

... Descriptors : *OPERATORS(MATHEMATICS), FUNCTIONAL ANALYSIS, OPERATORS(MATHEMATICS), PERTURBATION THEORY, MATRICES ...

... the absolute continuity problem Is considered ... of reproducing kernel Hilbert space (RKH) theory ... Reproducing kernel Hilbert spaces, preprint (July ...

... permits continuous and independent variation in any direction of the velocity of two stimulus patterns from zero (below the absolute threshold) to a ...

... Title : THE SOFT X-RAY CONTINUOUS SPECTRUM FROM LOW ENERGY ELECTRONS IN THE 80A-180A REGION. Corporate ...

I CMB THERMAL SPECTRUM A Frequency Spectrum The FIRAS (Far Infrared Absolute Spectrophotometer anisotropies on all observed angular scales and with a near- scale invariant spectrum, the field spectrum of the CMB and the CMB anisotropies, plus a host of other observations and conclusions

An absolute displacement-sensing system based on channeled spectrum processing capable of simultaneous interrogation of fiber Bragg gratings and fiber-optic interferometric sensors is presented in which the role of the optical spectrometer is performed by a scanning Fabry-Perot filter. We demonstrate a resolution of +/-50 nm with an estimated dynamic range ...

Absolute intensities were measured in the continuous emission spectrum resulting from electron attachment to the halogen atoms in a shock-heated plasma seeded with sodium halides. The intensity measurements were used to determine new photodetachment cross sections for the negative chlorine, bromine, and iodine ions in the wavelength ...

Let H=-{partial_derivative}{sub x}{sup 2}+V(x) be a properly defined Schroedinger operator on L{sub 2}(R) with real potentials of the form V(x)=q(x)+p{sup '}(x) (the derivative is understood in the distributional sense) with some p,q set-membership sign L{sub 2}(R). We prove that the absolutely continuous spectrum of H fills ...

A coordinated rhythmic movement pattern is a dynamical activity involving many hidden layers of rhythmic subtasks. To investigate this dynamical substructure, spectroscopic concepts and methods were applied to an interlimb rhythmic movement task requiring 1:1 frequency locking of two hand-held pendulums in 180 degrees phase relation. The pendulums could be of identical or very different ...

Using the time domain master equation for a complex electric-field pulse envelope, we find analytical results for the optical spectra of passively mode-locked semiconductor lasers. The analysis includes the effect of optical nonlinearity of semiconductor lasers, which is characterized by a slow saturable amplifier and absorber. Group velocity dispersion, bandwidth limiting, and self-phase ...

Time-resolved, high-accuracy and high-resolution spectroscopy of rapidly tuned continuous-wave lasers is critical to realizing their full potential for sensing, but is not possible with conventional spectrometers. We demonstrate a coherent dual-comb-based spectrometer capable of measuring continuous-wave optical waveforms at time resolutions of 30 �s and ...

A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises ...

Interference detection in Gaussian noise is proposed. It can be applied for easy detection and editing of interference lines in radio spectral line observations. One does not need to know the position of occurrence or keep track of interference in the band. By using statistical properties of N-channel Gaussian noise it is possible to differentiate interference from normal Gaussian noise. These ...

The spectrum of axisymmetric torsional Alfven waves propagating in a cylindrical, nonuniform, resistive plasma waveguide has been analyzed by a method of singular perturbations. It is indicated why some experiments show a continuous spectrum and others a discrete spectrum.

May 31, 2011 ... Expressions are obtained in a natural way for the discrete spectrum as well as for the four branches of the continuous spectra. ...

... EXPERIMENTAL INVESTIGATION OF A RESONANT MECHANISM OF AMPLIFICATION OF CONTINUOUS-SPECTRUM DISTURBANCES IN AN ...

... OF THE ELECTROMAGNETIC REFLECTION PROPERTIES OF SMOOTH BRACKISH WATER TO THE CONTINUOUS SPECTRUM FROM 10 ...

Abstract. The results of numerical calculations of a �bre Raman ampli�er pumped by continuous-spectrum developed by using a pump source with a continuous spectrum [6, 7], which can provide the best Raman gain of a continuous pump spectrum that would provide the maximum possible �atness of ...

This study sought to determine the effects of hyperbaric pressure on heart rate modulation, by analyzing potential changes in heart rate variability (HRV). Ten divers were exposed to pressures of 1, 2, 3, and 4 atmospheres absolute (ATA). The test was performed in a hyperbaric chamber. Heart rate (HR) was recorded in supine subjects for 10 minutes per atmosphere. HRV was ...

A research of optical properties of individual microalgae Chlorella vulgaris cells was performed under various conditions of cultivation. On the basis of cell absorption spectra measurements in the visible spectrum region chlorophyll "a" absorption maxima are estimated to fall within the intervals of 669-675 nm for the red region of the spectrum and ...

Continuous non-invasive blood component sensing and regulation is necessary for patients with metabolism disorders. Utilizing near-infrared spectroscopy for non-invasively sensing blood component concentration has been a focus topic in biomedical optics applications. It has been shown to be versatile, speedy and sensitive to several kinds of samples. However, there is no ...

Neutron energy spectra from the T-T fusion reaction were measured by imploding plastic capsules filled with high-purity tritium gas (99.76%). The experiments were performed on the 60-beam, 30-kJ OMEGA Laser Facility at the University of Rochester's Laboratory for Laser Energetics. The neutron spectra were measured using an absolutely calibrated neutron time-of-flight detector ...

Twenty-one absolute flux distributions in the spectral range 3150--6000 A of the nova were compared to the emission spectrum of a pure hydrogen plasma. The electron temperature and E (B -- V) were found to be 16,000 +- 2000 K and 0.15 +- 0.10 mag, respectively. We adopted a distance of 1.6 +- 0.2 kpc and the model by Ennis et al. for the radius and ...

We are calibrating a new time-resolving x-ray spectrometer used to diagnose z-pinch driven hohlraums at the Saturn Facility. The instrument uses a 5000 lines/mm transmission grating dispersing element and has an array of silicon photodiodes and a gated microchannel-plate detector for recording spectra. The diodes are located every 50 eV from 100 to 850 eV (E/{Delta}E=10) and have subnanosecond ...

This paper looks at a magnetic Shr�dinger operator on a graph of special form in \\ R^3. It is called an armchair graph because graphs of this form with operators on them are used as a possible model for the so-called armchair nanotube in the homogeneous magnetic field which has amplitude b and is parallel to the axis of the nanotube. The spectrum of the operator in ...

The KArlsruhe TRItium Neutrino experiment KATRIN is designed to measure the absolute neutrino mass scale by analyzing the endpoint region of the tritium beta-decay spectrum with a sensitivity of 0.2 eV/c2 (90 % C.L.). A high-luminous windowless gaseous tritium source with an activity of 1.7 � 1011 Bq will produce the decay electrons, their energy ...

Some questions of the approximate solution of the nonlinear boundary problem for analytic functions, associated with the Low equation are considered. The convergency of continuous analog of the Newton method to the solutions with small absolute value is p...

-nuclear coupling of B appear to be relatively unperturbed from that of BChl itself. For example, the Raman spectrum in a resonance Raman spectrum are those that couple to the resonant electronic transition, and the intensity of the absorption spectrum and Raman excitation profiles. We found previously that the ...

Spectroscopic and spectrophotometric study of the star HD 35450 has revealed its composite spectrum to be due to the fact that HD 35450 is actually a physically binary system whose components are two stars of the main sequence belonging to the spectral classes A3 and F6. The studied absolute energy distribution in the spectrum ...

A system that allows the collection of the low loss spectrum and the core loss spectrum, covering different energy regions, at each pixel in a spectrum image is described. It makes use of a fast electrostatic shutter with control signals provided by the spectrum imaging software and synchronisation provided by the ...

The SORCE (SOlar Radiation and Climate Experiment) SIM (Spectral Irradiance Monitor) is a currently operating prism spectrometer that measures the solar spectrum four times a day in the 200-2700 nm region with a wavelength dependent resolution of 1 - 33 nm. SIM has been operational for 2.5 years and is now providing the first continuous record of solar ...

The CLARREO mission has outlined some preliminary requirements for a space based spectrometer to measure visible to near infra-red Earth albedo with a 0.3% absolute accuracy, 0.1%/decade calibration stability and a 10km footprint size at nadir. It is well known that some Earth viewing optics undergo significant degradation at solar wavelengths when in orbit which is not ...

It is shown that the paths of real separable Gaussian process on an interval have a number of interesting properties with probability zero on one. These properties include boundedness, bounded variation, continuity, uniform continuity, absolute continuity...

Imaging diagnostics are used for spatially/emdash/and temporally/emdash/resolved quantitative measurements of plasma properties such as the ionization particle source, particle and energy loss, and impurity radiation in magnetically confined fusion plasmas. Diagnostics equipped with multi-element solid-state detectors (often with image intensifiers) are well suited to the environment of large ...

We present five new absolutely calibrated continuous stellar spectra constructed as far as possible from spectral fragments observed from the ground, the Kuiper Airborne Observatory (KAO), and the IRAS Low Resolution Spectrometer. These stars -- ? Boo, ? Dra, ? Cet, ? Cru, and ? UMa -- augment our six, published, absolutely calibrated ...

When a contractive map is forced by a chaotic discontinuous system, the asymptotic response function that defines the attracting invariant set can be highly irregular. In this context, it is natural to ask whether the invariant distributions of the base and factor systems share the same characteristics and in particular, whether the factor distribution of an absolutely ...

Theoretical calculation of chiroptical properties has been a powerful tool for the absolute configuration assignment of chiral compounds including synthetic drugs and natural products. In the present work, time-dependent density functional theory (TDDFT) calculations of electronic circular dichroism (ECD) and optical rotatory dispersion (ORD) were employed to investigate the ...

The SOLSPEC experiment, planned for the Atmospheric Laboratory for Applications and Science (ATLAS 1) NASA mission, is described. The purpose of this experiment is the measurement of the absolute solar irradiances in the wavelength range from 180 to 3000 ...

The operation of an apparatus constructed to measure absolute photodissociation spectra of ions and to determine the kinetic energy spectrum of the photoproducts by time-of-flight analysis is described. Photodissociation spectra for the processes D2(+) + ...

Photoelectrically determined magnitudes and colors for seventy-one stars reduced to absolute energy units are tabulated for discrete wavelengths in the infrared region of the spectrum from 1.0 microns to 10.0 microns. (Author)

The spectrum of Comet Halley was observed on various dates between Sept. 1985 and Dec. 1986, obtaining mulipositional long-slit absolute spectrophotometry of the inner region of the coma in the visible range, with a 2.5 m telescope. The emission in the 38...

The objective is to determine the absolute spectral energy radiated in the visible region by a Mk 24 illuminating flare. A spectrum of the flame in the visible region is obtained with a scanning spectrometer. The integrated visible energy radiated by a fl...

We compare ab initio broad spectrum calculations of the K-edge X-ray absorption spectra of copper and molybdenum against accurate experimental measurements and tabulated standards on an absolute scale. Comparisons are also presented for the fine structure in the spectra.

A time resolved, 14 channel spectrometer with an absolutely calibrated response, was developed to cover an x-ray photon energy spectrum from 70 to 650 eV. The spectrometer utilized a combination of thin film prefilters, layered synthetic microstructure (L...

Data are presented on the energy spectrum and absolute intensity of solar cosmic ray protons in cosmic ray flares recorded on Nov. 14, 15, and 21, 1960. About seventy measurements were made in the stratosphere at various latitudes. (W.D.M.)

By analysing the pulse to pulse intensity fluctuations ofthe radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source (ALS...

By analyzing the pulse to pulse intensity fluctuations of the radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source (AL...

The hot Jupiter HD189733b offers the best exoplanet in which to perform atmospheric studies through transit spectroscopy. Here we propose STIS and Nicmos spectra to help construct a full exoplanetary transit transmission spectrum that extends over the entire optical and near-infrared range. Such a spectrum will link existing observed atmospheric features ...

A method for precise measurements of absolute electron density in the plasma using plasma frequency is developed. A microwave perturbation of a frequency is introduced to plasma from a network analyzer and transmits in the plasma. The transmitting wave at a distance from a radiating antenna is monitored using a spectrum analyzer to scan the perturbing ...

Avoidance conditioning and the method of limits were used to measure absolute auditory thresholds, masked thresholds, and critical ratios in 4 parakeets. The same procedure was then used to study frequency difference limens in 6 additional animals. The power spectrum and "constancy of intonation" of the parakeet call were also measured and related to the ...

A correction to the TPC efficiency calculations based on discriminator response data is shown to have an average effect of 20% on the absolute magnitude of the earlier results. Consistency between runs with the NA36 magnet in different polarities is demonstrated. Comparisons are made with NA35 S + Ag data. The absolute flux of {Lambda} particles is ...

Quantaurus-QY was developed as a compact, easy-to-use system with a small footprint based on Hamamatsu's established C9920-02/03 systems for measuring absolute photoluminescence quantum yields. Operating this system is simple: load a sample and press the start button to measure the photoluminescence quantum yields, excitation wavelength dependence, photoluminescence excitation ...

A method for measurement of the absolute activity of beta sources is proposed that has high accuracy and takes into absorption of the soft component of the spectrum in the backing, which allows backings of various thicknesses (down to a half-absorption layer) to be used.

Methods, procedures and programs for absolute gamma and X-ray spectrometric determination of U and Pu isotopic ratios have been developed. The low energy (84-99) keV range of the U gamma and X-ray spectrum is used for U analyses. Two possibilities are pro...

probable exposed innocence beyond suspicion exposed privacy absolute provably Figure 1: Degrees of this paper, three intermediate points of this spectrum are of interest. One is beyond suspicion, which is slightly weaker than absolute anonymity. A sender's anonymity is beyond suspicion if though the attacker

A visible spectrum radiation measuring apparatus achieving an absolute measurement utilizing a plurality of inversion layer silicon photodiodes in a configuration wherein light reflected from the surface of a photodiode impinges on another photodiode, and its respective reflected light impinges on another photodiode, such that each time the light impinges ...

791 Absolute iodine (I2) standards measured by means of Fourier transform spectroscopy S the absorption spectrum of the iodine mole- cule recorded in the visible by means of Fourier spectroscopy. The result is that the wavenumbers previously published in the iodine-atlas extending from 14 800 to 20 000

By analyzing the pulse to pulse intensity fluctuations of the radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source (ALS) of the Lawrence Berkeley National Laboratory, we have developed and successfully tested a simple scheme based on this ...

By analyzing the pulse to pulse intensity fluctuations of the radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source of the Lawrence Berkeley National Laboratory, we have developed and successfully tested a simple scheme based on this principle ...

By analyzing the pulse to pulse intensity fluctuations of the radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source (ALS) of the Lawrence Berkeley National Laboratory, we have developed and successfully tested a simple scheme based on this ...

By analyzing the pulse to pulse intensity fluctuations of the radiation emitted by a charge particle in the incoherent part of the spectrum, it is possible to extract information about the spatial distribution of the beam. At the Advanced Light Source (ALS) of the Lawrence Berkeley National Laboratory, we have developed and tested a simple scheme based on this principle that ...

Absolute levels of all fatty acids per digestive gland declined continually until ... respectively whereas the saturated fatty acid, palmitic acid (16:0), ...

A VaR Black-Litterman Model for the Construction of Absolute Return Fund-of- Funds ... Continuity of set-valued maps revisited in the light of tame geometry ...

of it are progressing. School Rules and Regulations Fuller details of the general rules regarding attendance, release and the Strong Law of Large Numbers. (7) Singular, absolutely continuous and equivalent measures. Radon

... are synchronized to the 60 Hz line frequency and contain some type of back up oscillator to insure continued operation during AC power outages. ...

... an absolute cure. ... continuous Markov process for the treatment of data on cancer patients. The four states were: 1. Under treatment ...

Finally, the absolute heading of the vehicle is determined via a sun sensor which is ... the continued development of the FIDO rover localization approach ..... Accurate mobile robot dead-reckoning with a precision-calibrated ber- ...

We investigated the possibility of absolute source activity measurements by a single gamma spectrometer. The measurements were performed for three (point, cylinder and Marinelly shaped) calibrated 152Eu sources. Making use of data on peak, sum-peak and total spectrum area in the single spectrum, we developed the activity determination ...

The continuous frequency spectrum of the torsional Alfven wave in a toroidal plasma is known to contain gaps in the spectrum which are associated with mode coupling on and near rational surfaces. It is shown in this paper that the frequency spectrum is in...

The inverse problem is studied in a system with mixed spectrum, i.e. the continuous part of the spectrum coincides with that of a repulsive delta-potential and the discrete part coincides with that of an attractive delta-potential. (author). 2 refs, 5 fig...

Parametric methods of spectrum analysis are founded on finite-dimensional models for covariance sequences. Rational spectrum approximants for continuous spectra are based on autoregressive (AR), moving average (MA), or autoregressive moving average (ARMA)...

A precision system for the continuous and rapid measurement of absolute thermoelectric power (TEP) under controlled conditions of temperature and pressure has been developed. The design is centered around a fourth order polynomial curve fitting circuit which enables: (1) linearization of thermocouple-temperature characteristic, and (2) simulation of the ...

We investigate the relation between the E? spectrum in B?Xs? decay and the P+ spectrum in semileptonic B?Xu??� decay (P+ is the hadronic energy minus the absolute value of the hadronic three-momentum), which provides in principle the theoretically simplest determination of |Vub| from any of the �shape function regions� of ...

Repeated measurements on one part of a bipartite system strongly affect the other part that is not measured, the dynamics of which is regulated by an effective contracted evolution operator. When the spectrum of this operator is discrete, the nonmeasured system is driven into a pure state, irrespective of the initial state, provided that the spectrum ...

Preliminary results are given of the differential momentum spectrum of mu mesons in the cosmic radiation measured 200 ft above sea level. The spectrum is used to make an estimate of the production spectrum of the parent pi mesons. The slope of the sea level mu -meson spectrum was observed to increase ...

The objective of this work is to calibrate the effective area of AXAF as close as possible to 1%, to permit accurate absolute x-ray flux observations. We report in this paper on our work in calibrating transfer standard detectors used for prelaunch x-ray calibration of AXAF. We discuss the transfer standard high purity germanium detector, referred to as the SSD. The ...

Continuous and discrete spectrum states near the ionization limit of the hydrogen atom are considered. The origin of the continuous spectrum narrow resonances is elucidated. It is shown that the wave functions structure is intermediate between the regular...

The dependence of the polarization vector on the electric field strength is established for a medium possessing a continuous energy spectrum. An integral expression defining the polarizability is derived. Dispersion relations between the Hermitian and non-Hermitian parts of the nucleus are deduced. (auth)

Fifty specified lines of {sup 127}I{sub 2} were studied by Doppler-free frequency modulation spectroscopy. For each line the classification of the molecular transition was determined, hyperfine components were identified, and one well-resolved component was selected for precise determination of its absolute frequency. In 3 cases, a nearby alternate line was selected for ...

A paradigm based on the absolute equilibria of Fourier-truncated inviscid systems [R. H. Kraichnan and D. Montgomery, Rep. Prog. Phys. 43, 547 (1980)] to understand turbulence is applied to study gyrokinetic plasma turbulence. This approach has been successful in understanding fundamental issues of fluid turbulence, and provides useful benchmarks for analytical theories and ...

The three dimensional boundary layer over a rotating disk is accordingly subject to an absolute mode of instability, whose role in transition process is still not well understood. Depending upon the methods of investigation and the associated assumptions, the scenario for the last stage of transition appears either convectively or absolutely dominated (see ...

... analysis time; A continuous frequency constant q shock spectrum analyzer; Slope error of power spectral density measurements; The effects of ...

... Malathion Pattern recognition (continued on reverse) 17. ... o.... 24 10 Second Derivative of the Emission Spectrum of Malathion .... 25 ...

... effectively orchestrates full spectrum, joint engineer integration in support of combatant commanders and that facilitates continuous joint engineer ...

A procedure is presented for calculating the power spectrum of the class of digital continuous-phase

... Continued temperature dependent Raman measurements of Strontium Titanate have also disclosed a new 'moving' component in the spectrum. ...

... They will guide us on how to control a quantum system with scattering states (possesses continuous spectrum) and help us to design feedback ...

... infrastructure, key facilities and resources remained ... Significant population growth, possibly as much ... sheer destruction and unrestrained violence of ...

... Resonant Mechanism of Amplification of Continuous-Spectrum Disturbances in an APG Boundary Layer by Means of a Deterministic Noise Method. ...

... production based on these languages and tools. ... The new wide spectrum specification language and environment ... Anna to predict the behavior of a ...

... WAVE PROPAGATION, *HELMHOLTZ EQUATIONS, CONTINUOUS WAVES, UNDERWATER SOUND, WAVE EQUATIONS, BESSEL FUNCTIONS ...

largest region of the state space. The component failure is viewed as an ...... that never repeat, a continuous spectrum, and a Lyapunov exponent ...

The intensity and spectrum of neutrons leaking out of the earth's atmosphere are calculated by a multigroup diffusion code as a function of latitude and solar cycle. The absolute intensity is obtained from normalization of the calculated flux to measured values in the atmosphere. The calculated neutron leakage intensity and ...

Nuclear research emulsions (NRE) have been used to characterize the neutron spectrum emitted by the Little-Boy replica. NRE were irradiated at the Little-Boy surface as well as approximately 2m from the center of the Little-Boy replica using polar angles ...

The measurement of the reactor resonance neutron flux in the keV range was discussed. A method was given for the study of the neutron spectrum which is based on the preliminary filtration of the flux by the /sup 10/B absorber. The measurement results were reported. The experimental data obtained indicated the deviation of the spectrum in the keV ...

The opportunity to improve substantially the precision of the measurement of the cosmic ray muon momentum spectrum is given by the upgrade of the L3 spectrometer located at LEP, CERN, Geneva. Absolute flux results in the momentum range between 20 GeV and 3 TeV are presented for zenith angles ranging from 0� to 58�. The charge ratio is measured from 20 ...

The parameter of an analytical expression for the fast neutron spectrum is determined. The fast neutron spectra in various location of the TR-1 (Cekmece Nuclear Research and Training Reactor) are obtained. Threshold detectors In exp 115 , Ni exp 58 , AL e...

New results are reported on the angular and energy spectrum of resonantly accelerated electrons from a shock front as measured by a miniature ..beta..-ray spectrometer. A multichannel electron collector based on printed circuit board technology has been developed. It has been multiplexed into a fast oscilloscope to provide a complete absolute ...

New results are reported on the angular and energy spectrum of resonantly accelerated electrons from a shock front as measured by a miniature ..beta..-ray spectrometer. We have devised a multichannel electron collector based on printed circuit board technology. It has been multiplexed into a fast oscilloscope to provide a complete absolute ...

The solar spectrum experiment on Spacelab 1 measured 98 percent of the sun's total energy output. It improved the absolute accuracy of solar irradiance data, especially in the ultraviolet and infrared regions. In order to detect any variation in the spectrum on future shuttle flights, the data were obtained in a radiation scale that ...

Announcement of the on-line availability of a digital atlas of the solar disk-center intensity spectrum and the disk-averaged flux spectrum, both based on observations with the Fourier Transform Spectrometer at the McMath-Pierce telescope at Kitt Peak by Brault and Testerman and calibrated to absolute intensity units following the ...

neutron spectrum are presented. In addition, measuring R at the National Ignition Facility (NIF) [G to ignited implosions. To accomplish this, we are also developing an MRS for the NIF. As much of the research and development and instrument optimization of the MRS at OMEGA is directly applicable to the MRS at the NIF

An opto-electronic system and technique for comparing laser frequencies with large frequency separations, establishing new frequency standards, and achieving phase-sensitive detection at ultra high frequencies. Light responsive materials with multiple energy levels suitable for multi-photon excitation are preferably used for nonlinear mixing via quantum interference of different excitation paths ...

Zidovudine and lamivudine (ZDV and 3TC) are long-standing nucleoside analog-reverse transcriptase inhibitors (NRTIs) with extensive clinical experience in a wide spectrum of patients from in utero through childhood and adult ages. The safety profiles of both drugs are well-known and side effects for ZDV most commonly include nausea/vomiting, fatigue, anemia/neutopenia, and ...

It is commonly believed that an energy transfer from thermal to suprathermal electrons (spectrum in this energy range is quite limited because of technical difficulties of measurement. We have developed an instrument to measure electron energy distribution from thermal ...

It is commonly believed that an energy transfer from thermal to suprathermal electrons (spectrum in this energy range is quite limited because of technical difficulties of measurement. We have developed an instrument to measure electron energy distribution from thermal ...

An opto-electronic system and technique for comparing laser frequencies with large frequency separations, establishing new frequency standards, and achieving phase-sensitive detection at ultra high frequencies are disclosed. Light responsive materials with multiple energy levels suitable for multi-photon excitation are preferably used for nonlinear mixing via quantum interference of different ...

Tissue abnormality characterization is a generalized segmentation problem which aims at determining a continuous score that can be assigned to the tissue which characterizes the extent of tissue deterioration, with completely healthy tissue being one end of the spectrum and fully abnormal tissue such as lesions, being on the other end. Our method is based ...

We investigate the luminosity and colors of the optical afterglow (OA) of GRB060218 during t-T0<2 days in the context of the OAs of long GRBs. The R-band absolute magnitude -19.5 at (t-T0)rest = 1.5 d places this event below or at the lower end of the statistical distribution of the spectrally homogeneous ensemble of 23 OAs of long GRBs which we considered in our previous ...

normal distribution CI for normal xstx � #12;2 Do you want your estimate of the mean to be accurate within are the consequences of being wrong? Sample size for continuous variables Types of deviations from the mean Absolute the absolute error divided by the mean Sample size for continuous variables n= sample size ...

Thm for Triangular Arrays, Absolute Continuity of Measures and Distribution Functions, Radon/11 Sub--Algebras as "Information" Absolute Continuity of Measures; Radon-Nikodym Thm M 2/16 W 2 of Texas System and The University of Texas at Dallas have rules and regulations for the orderly

We consider steady states for a class of mechanical systems with particle-disk interactions coupled to two, possibly unequal, heat baths. We show that any steady state that satisfies some natural assumptions is ergodic and absolutely continuous with respect to a Lebesgue-type reference measure and conclude that there exists at most one ...

Let mu and mu sub 1 probability measures on a locally convex Hausdorff real topological linear space E. C.R. Baker posed the problem of characterizing the absolute continuity of mu and mu sub 1 by their characteristic functionals. The aim of this paper is...

. Introduction This paper will be concerned with absolutely continuous invariant measures (ACIMs) and super ; (3) f a admits an ACIM; 8a 2 \\Delta 1 . This theorem is originally due to Yakobson, [Ya], who proved the existence of an ACIM for a positive measure set of parameters. See also [R]. The above formulation

We prove that the continuous one-dimensional Schroedinger equation with an analytic quasi-periodic potential has positive Lyapunov exponents in the bottom of the spectrum for large couplings.

With the aim of using in an argument in the study of the spectrum of the Schrodinger operators, a particular integral involving the Bessel functions and depending on a parameter is considered. The main purpose is to investigate the continuity property of ...

The report describes the continuing efforts of researchers in a broad spectrum of disciplines to understand and control cancer. It describes some of the strides in determining the biological basis of cancer, the discover of oncogenes and the continuing ef...

Compton recoil gamma-ray spectroscopy provides absolute measurements of continuous gamma-ray spectra. Peaks which possess sufficient intensity above the continuum level can be observed. Since the inception of this spectrometric method, this method has evo...

A reliable estimate of the platinum abundance in HgMn stars has been obtained for the first time. It is as high as log A(Pt) = 6, on the scale log A(H) = 12; the Pt abundance often matches the remarkably high abundances of Hg already known in these stars. The results are based on calculations of theoretical oscillator strengths which were applied to high resolution spectra taken with the ...

We have measured the absolute intensity, and the energy spectrum, and the pulse shapes as function of neutron energy for the IPNS liquid CH/sub 4/ F moderator, at 108 K. We have fitted the spectrum, corrected for attenuation by aluminum in the beam, using a new cutoff function and fitted the pulse shapes to a new function which is the ...