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Sentence Examples The inset shows the second differential curves calculated from peaks 7 and 8 of the quinone spectra. The isotropic emission spectra were normalized to the corresponding absorbance at the excitation wavelength. It can be said that Heisenberg's quantum mechanics has made possible a systemization of spectra of atoms. The accuracies of colorimeters can vary significantly, depending on the spectra of the colors measured. The spectra were first converted from wavelength to wave number and then fitted with a superposition of Gaussians. These spectra are similar to those obtained for multilamellar vesicles made of lipids with deuterated acyl chains. This led us to shift the excitation to a lower wavelength to minimize the contribution from Rayleigh scattering in the emission spectra. Therefore, the appearance of new bands in the rate spectra corresponds to new kinetic processes. The results were also verified by examining the spectra of two purified proteins, albumin and lysozyme. The xeroderma pigmentosum derived fibroblast cell line spectra also showed non-significant results when compared with each other. These spectra were remeasured and reproduced here using the instrument described here. To compare the relative amplitudes of the different spectra, it is necessary to normalize the signal. In 1893 Wien stated his displacement law of blackbody radiation spectra at different temperatures. This method was used to resolve the monoanion spectra in a range of solvent-water mixtures. These methods give rise to well resolved spectra of the protein but do not provide information about noncovalent lipid binding interactions. However, the longer acquisition time is compensated by the information that can be extracted from the spatially resolved spectra. In addition, the signal overlap for each resonance line can be examined in the spatially resolved spectra. Differential scattering can distort CD spectra by anisotropically scattering light away from PMT detector. The spectra of the intermediates and the ground forms of the rhodopsin family possess a characteristic common feature. The loss of that same finite amount of energy by energetic electrons explains the bright line spectra emitted by glowing gases, such as neon. Show More Sentences To measure the line spectra, researchers shine light over a large range of wavelengths through a very long column of water. All spectra were smoothed 10 times using a fixed bandwidth, sharp cutoff, three-point, low-pass linear digital filter. Because of small body movements or maybe sudden changes in luminosity, some of the recorded emission spectra showed artifacts. It is becoming evident however that some strains that appear to have similar spectra of inhibitory activity produce quite different bacteriocins. The spectra show a large variation in spectral features like the number of bands, bandwidths, and their polarization behavior. The structures of these derivatives were characterized with proton nuclear magnetic resonance, infrared and mass spectra. Their authenticity was confirmed by UV, electrospray mass spectra and high-field proton NMR spectroscopy. Furthermore, the substitution reactions resulted in small bathochromic shifts in the absorption spectra. Fluorescence excitation and emission spectra at room temperature and at 77 K are presented. Correction of excitation and emission spectra was performed using a Rhodamine B quantum counter solution and a standard lamp, respectively. Made up of small numbers of gold or silver atoms, the nanoclusters are strongly fluorescent and have narrow excitation and emission spectra. The solution was scaled so as to normalize the peaks in excitation and emission spectra to unity. In the analysis reported here, the basis spectra are all weighted equally by normalizing each to a value of 100 at their emission maximum. Molecular absorption spectra are observed in the infrared and microwave portion of the electromagnetic radiation spectrum. The small ring on bridle would make it more difficult for the spectra to slide through the larger ring or carabineer at the end of the tow rope. The absorption and emission spectra of molecules can be correlated with such transitions of electrons between allowed quantized energy levels. Theoretical modeling of fruit spectra into the trichromatic color space of catarrhine primates yielded similar results. Since IR spectra are due to vibrations of biochemicals, the changes in the spectra are due to underlying changes in cell biochemistry. Most studies that report in vivo bioluminescence emission spectra or describe the color of bioluminescence only deal with the adults. The analysis wavelength was 470 nm, near the maximum of the triplet difference spectra. Show More Sentences The raw spectra of protons, deuterons, tritons and alpha particles were fitted with a three moving source prescription. The shapes of the action spectra drastically changed depending on the fluence rate of the unilateral monochromatic irradiation. Each spectrum was analyzed as a linear combination of basis fluorescence spectra using a singular value decomposition algorithm. This method relies on establishing the relationship between the near-infrared spectra of a subset of the samples and reference chemical values. Visible and near-infrared spectra were acquired throughout the blanching cycle. Chloride binding by the proteins was assayed spectroscopically by monitoring the chloride-induced blue-shift of their absorbance spectra. One method they use, fluorescence spectroscopy, involves recording optical spectra from molecules absorbing and emitting light. He began to classify all the known nebulae and to measure their velocities from the spectra of their emitted light. Purified lipid-DNA adducts had a characteristic fluorescent spectra and showed a decrease of hyperchromicity and melting point. But differences in spectra led some to suspect that single bubble sonoluminescence was a distinct process from the multibubble variety. At that point, the differences in reflected light, or spectra, of female and male pupae were most apparent. Experimentally, infrared absorption spectra are obtained using infrared spectrometers. The EEG frequency spectra were derived from 30 second samples that were digitized at a rate of 330 Hz, resulting in 9900 points. This means certain groups of atoms have similar energies, so have similar vibrational spectra. Cross-correlation analysis on EEG spectra and performance time series were carried out for a single participant. Since 1993, two populations of gamma-ray bursters have been recognized, each with largely different spectra. The relationships linking the stepper motor position and wavelength have been obtained by averaging the results of more than 20 spectra. Because the oleoresin of resin vesicles is a low-viscous liquid, it can be detected by high-resolution C MAS NMR spectra in vivo. Fig.4 A shows the four orthonormal basis spectra with highest singular values. Difference spectra were calculated by subtraction of the spectrum of the DNA from the spectra of the peptide-DNA complexes. Show More Sentences Due to the chemical processes involved, the ability of species to fine-tune the spectra of the chemiluminescent reaction is itself limited. Figure 1 shows the emission spectra of the four sunlamps tested under laboratory conditions. The spectra of the two homogenates of the same tissue type from the biopsy samples of each patient were averaged to obtain a single spectrum. This titration served to correlate pH values with Mb spectra in the photolytic acidifications. Action spectra for phototaxis in some filamentous cyanobacteria suggested that photosynthetic pigments were involved in the photoreception. This dominates their infrared spectra, where wavelengths beyond 0.75 m are efficiently reflected away. However, many species then alter the spectra of the emitted light using spectral filters and reflectors. Circular dichroism spectra were measured in a Jasco-600 polarimeter with a bandwidth of 2 nm. The solvent polarity also affected the fluorescence spectra of ferulic acid. This is supported by the finding that the two bands exhibit an isosbestic point, if the spectra are corrected for their temperature dependence. The spectra that are observed indicate that small molecules, such as cyanide, methane, and cyanogen, can assemble in outer space. Previously described protocols were used for isolation of mitochondria and generation of cytochrome spectra. The concentration was employed to transform the experimentally obtained absorption into extinction coefficient spectra. The formation of the proper duplex and triplex were ensured by their characteristic melting profiles and CD spectra. Angular resolved spectra of surface samples were obtained using a homemade goniometer. The term extinction coefficients describes the absorbance spectra of a single pure substance at known concentrations. They then dissolved the sample in deuterated acetone and filtered it before running the NMR spectra. Last was the invention of the diffraction grating for use in analyzing spectra from astronomical bodies. The amounts of chromophore were equalized among samples, absorption spectra for the native proteins were collected. Counterilluminating species must cope with the changes in the angular distribution and spectra of downwelling light at different depths. Show More Sentences Comparison of the action spectrum of an Avena coleoptile s phototropic bending and the absorption spectra of carotenoids. Phosphorylation spectra are not disturbed by photolysis signals because photolysis is complete before recording of the first spectrum used in the subtraction. A modification of the absorption spectra observed upon a self-association can be explained in terms of either localized or delocalized excited states. The eluents were analysed with a differential refractometer and the peak areas were integrated by a Spectra Physics 4290 integrator. Spectra were also corrected for the wavelength-dependent efficiencies of the photomultiplier tube detector and monochromators. The effect of these differences on the field operation of UV-B radiometers has been studied by calculating the instrumental response from modeled UV spectra. Results were derived from the comparative interpretation of the conventional EEG results and the frequency spectra data, for both the experimental and control subjects. A myriad of colors and textures, expertly placed, well lit candles, sending spectra of light cascading off elegantly woven rugs hanging on the walls. Doubly or triply charged ions were selected for product ion spectra. For example, Bohr's atomic theory includes terms like quantum numbers, quantum jump, steady state, and explains spectra described with the help of wavelength. In an attempt to solve these questions, one fruitful approach has been the analysis of in situ absorbance and fluorescence spectra during etiolation. Stars also have distinctive spectra, determined by their temperature, size, and, to a lesser degree, their chemistry. By recording the spectra of several distant quasars whose light pierces the Milky Way, the spacecraft revealed some 50 ultraviolet-absorbing gas clouds around our galaxy. The lights quickly alternated between blindingly bright and soothingly dimmed, while the reflective surfaces refracted lasers into spectra of color. If the spectra are dominated by fluctuation of the motor charges, subtraction of two spectra obtained at different pipette potentials should have a similar relaxation time. Spectra were acquired before the stepper motor began moving, throughout the 6-blanch cycle, and after the blanch cycle was completed. My main symptoms are rapid onset aura with teichopsia, fortification spectra, unilateral temporal hemianopia and scintillating scotoma, in varying degrees of influence. Using this technique, absorption spectra that are a characteristic fingerprint of the sample analyzed are routinely obtained with minimum or no sample preparation. Steady-state fluorescence spectra were obtained on a Spex Fluoromax with a 4 nm bandpass and corrected for lamp spectral intensity and detector response. The silvered mirrors of the coelostat were pointed to some of the brighter stars beginning in 1905, and the first large-scale spectra of other stars were obtained. Show More Sentences The main work was to photograph the Southern skies with various instruments and thereby to derive the positions, magnitudes and spectra of stars and other objects. At lower temperatures, with increasing dehydration, lipids gradually lose all remaining degrees of motional freedom, and spectra become very broad and unresolved. If you are to tie your own corded hexes use a double fisherman's knot, unless you are using spectra where you need to tie a triple fisherman's knot. The incoming energy is processed and compared against known agent spectra. The principle of EPR oximetry is based on the broadening effect of molecular oxygen on the EPR spectra of paramagnetic substances via Heisenberg spin exchange. Both fluorescent proteins are genetically encodable, their emission spectra are well separated and mRFP1 is monomeric, reducing the possibility of protein function inhibition. This task is complicated by the multitude of chemical compounds in the interstellar medium and the elemental line spectra in the originating star light. High-field EPR is used to determine the g xx tensor element in frozen samples and to extract the isotropic g-value from anisotropic spectra of fluid membranes. Seminal work on the diffraction grating was done by Joseph von Fraunhofer beginning in 1821, who demonstrated that the gratings could produce spectra of unprecedented quality. The difference spectra of amide I bands at similar time points of deuteration directly indicate differences in the dynamic structure of the protein in the two samples. Spectra acquired from liquid samples that are inhomogeneous or that contain air bubbles can yield erroneous concentration values. The adsorption and emission of spectra characteristic of atoms also suggested that they were due to the oscillations of charged particles on the atomic or sub-atomic scale. We want a library of spectra from different cell types and their cancers. By looking at the light from distant stars, astronomers and spectroscopists are able to detect the line spectra associated with small molecules and compounds. The crystal chandeliers hanging from the ceiling, sending sparkles across the walls, rainbow spectra around the atmosphere were enchanting her in every way. Spectra were measured at different temperatures, and samples were allowed to equilibrate at each temperature for at least 10 min before data collection. The results of our model show that the strange and non-strange baryons spectra are in general fairly well reproduced. The reflectance spectra of the lumpy or cloddy soil and of coarse sandy soil are shown in Fig. Figure lb shows an example of the obtained WAXD patterns in this angular range, the other samples displayed WAXD spectra superimposable to this. To account for this shortcoming, we introduced two Gaussian peaks in these positions, and redeconvolved these spectra, to obtain an optimum fit. Show More Sentences Detection capabilities are not limited to the visible spectrum, but also take advantage of infrared, ultraviolet, and other spectra. Electron paramagnetic resonance spectra were recorded on a Varian E-3 X-band spectrometer at 77 K and at room temperature. The FTIR spectra of benzoxazine resin and the fully cured PBA are shown in Fig. These various spectra of jargonium are all of a very marked character, quite unlike those due to any other element in similar conditions. The second problem was that the planetary model could not explain the highly peaked emission and absorption spectra of atoms that were observed. It was quite exciting to see the absorbance spectra peaks where you expected them to be when we extracted pigments from spinach. Using spectrophotometer Shimadzu UV-1700 the electronic ground-state absorption spectra were recorded at the room temperature. The absorption spectra of the deposited thin films were recorded with a double beam spectrophotometer. In the spectra of exposed specimens, peaks due to gismondine be came quite prominent including those of albite and chabazite. Charles and his colleagues at the Royal Greenwich Observatory in the Canary Islands, Spain, to study the infrared spectra of the X-ray binary. In the NIR region, the overtones are anharmonic, impeding interpretation of the NIR spectra. Parachute shroud lines are made from cord-like Spectra kite line. We know that quasar spectra are drastically redshifted during their multibillion-year journey to Earth. This technique utilizes counter-propogating laser beams to create in Doppler-free spectra that are characterized by sharp resonances. In all spectra the electric field produced bathochromic shift of the bands. The model is examined by considering sensitivity of eigenfrequencies, spectra and applied masses. The collected data was imported into Microsoft Excel and the CD spectra were plotted in terms of molar ellipticity versus wavelength. It is found that the spectra are highly sensitive to solvent polarity but are insensitive to solvent hydrogen bond donor or acceptor strength. Figure 7 displays FTIR spectra of MMA-MAA copolymers with different MAA contents. The team took follow-up spectra of more than 400 stars hosting over 600 exoplanets. Show More Sentences Pre-treatment patient selection for nivolumab benefit based on serum mass spectra. Mass spectra showing peaks of roughly 100 compounds in breath can be easily and rapidly obtained in this fashion. SimLipid can annotate mass spectra with identified lipid structures and abbreviations as well. The resulting mass spectra were used to determine the number of acetyl groups that were added. Mass spectra of dimethylalkanes and the effect of the number of methylene units between methyl groups on fragmentation. Then they systematically compile full-scan mass spectra of 134 drugs and their isotropically labeled analogues in various derivatized forms. Due to metamerism, it is possible to have different spectra that appear white. Figure 1 shows the ATR-FTIR spectra of the unmodified and modified silicas. Circular dichroism spectra were expressed by molar ellipticity in units of millidegrees. The result is a mosaic of spectra, covering up to 60 different regions. The emission spectra were measured using a custom-made calibrated spectrofluorimeter described previously. Astronomers' echelle spectrographs are already recording these sky spectra during every hour of every night at numerous locations. We have compared Raman spectra of R6G on substrate and nanofluid of silver absorbed by R6G molecule. Both of these tools have already been in use for decades and have already been compared successfully with observations by way of synthetic spectra and helioseismology models. Photoluminescence spectra were recorded with a Spex Fluorolog-3 spectrofluorometer and optical absorbance spectra with a Specord M-40 spectrophotometer. It is often used by European sailcloth manufacturers, is available in a wider variety of yarn sizes than Spectra, and is growing in popularity. First, the spectra are heavily overlapping as seen in Figure 2 where the mid-infrared absorption spectra of methane, ethane, propane and n-butane are shown. The composition of Systemic fungicide Tetra methyl thiuram disulphide crystals are confirmed by comparing the infra-red spectra of the two components. As an aid to vibrational spectroscopists and polymer scientists, this article discusses some of the most important commercial polymers and their infrared spectra. Having any problems getting film for that Polaroid Spectra camera of yours? Show More Sentences Spectra of the galactic light indicate that faint red dwarfs account for 80 percent of stars in elliptical galaxies. Similar to Figure 8, the reflectance spectra progress from oxyhaemoglobin to deoxy-haemoglobin in the presence of actively respiring and reproducing bacteria. Because of this Spectra is only used in spinnakers on high performance boats where the sails are replaced regularly. Quantitative fluorescence excitation spectra of synthetic eumelanin. It has similar properties to Spectra including superior resistance to flex fatigue and UV degradation but also exhibits creep. After setting out the structure and spectra of DNA, they survey interactions by class of drugs, among them intercalating, covalent bonding, and metal containing. Spectra of aurorae largely comprise emission lines from N and O ions excited by various energetic particles entering the upper atmosphere. Valoya offers optimized continuous wide spectra for biomass growth, flowering, compactness and various special applications like vernalization and architectural lighting. As a result, the molecules display a unique optical spectrum that researchers can detect and compare with the spectra of similar molecules measured in the lab. The internal calibration was used for the mass spectra of shale oil with a known and rather abundant homologous series of nitrogen-containing compounds. For fly ash, peaks of quartz and mullite dominate the XRD spectra. Raman spectroscopy is advantageous because it is relatively easy to obtain spectra from just about any sample conformation, even under a glass coverslip and mounting glue. As the satellite orbits at 650 kilometres above Earth, the FTS is poised to take sequences of atmospheric absorption spectra twice a day, during sunrise and sunset. The spectrograph will be capable of obtaining simultaneous optical spectra of up to 300 faint galaxies or stars at wavelengths between 390 and 1000 nm. The spectra were recorded using dimethyl sulphoxide as a solvent. The approach of fitting parts of elementary particle mass spectra involving logarithmic potentials has been subject to research in the past decades. Firstly, the implementation of fullerene-free acceptor materials resulted in high open-circuit voltages and useful absorption spectra in the visible. The absorption spectra were recorded on the same spectrophotometer, with 1cm quartz cells and supported with Jasco Spectra Manager software for GUL-LIVER Ver. This gives exactly same energy levels for hydrogen atom as in Dirac's theory and also it's application to heavy quarkonium spectra gives data which are spin dependent. The absorptance spectra of the erbium-doped samples are shown in Fig. Show More Sentences The interpretation of the spectra is somewhat controversial. Infrared spectra taken by NASA's Galileo spacecraft show distinct absorptions on Jupiter's moon Europa that have been attributed to one or more sulfuric acid hydrates. Variation in the FTIR Spectra of Biomass Under Impregnation Carbonization and Oxidation Conditions. I was just starting to experiment with a Star Analyser diffraction grating in my filter wheel so I also recorded a series of low resolution spectra of the nova. This leads to a mixing in molecular spectra between the rotational and vibrational levels, from which Coriolis coupling constants can be determined. Various lighting spectra as viewed in a diffraction grating. Hoechst Celanese produces Certran polyethylene similar to Spectra, with about one half the modulus rating of Spectra. Stromlo Observatory in the Australian Capital Territory says spectra he took indicate that brightness peaked April 21, well before the first sighting. In that year the prototype metre was replaced by a formal definition which defines the metre in terms of the wavelength of specified light spectra. In a soil humic acid sample, they discovered some peaks attributed to methyl and methene that were invisible in normal 1-dimensional spectra because of presaturation. They rheologically characterized these products, modeling the rheological data within the linear viscoelastic range by estimating the products' relaxation mechanical spectra. From the figure one can see that the spectra show bathochromic shift. The UV endurance is inferior to PET and PEN, but the degradation levels off after roughly 400 hours of exposure, while the Aramids and Spectra continue to degrade. Spectra of the dust indicate that the veil is probably made of calcium aluminum silicate, a material also found in the outer atmosphere of some stars. The ICO technology is available as a COTS product from PrismTech as part of both the OpenFusion embedded middleware and Spectra SDR product families. Examples from Classical Literature These diffractive spectra have been examined with great skill by Draper and Langley. There is clearly no theoretical limit to the resolving power of gratings, even in spectra of given order. In the earliest days of spectroscopy the spectra of the stars were classified according to their visual spectra. The problem to solve is how to utilize these two spectra now we have got them. In the same manner and under similar conditions the spectra of many other substances have been reversed. All the almandine garnets which I have examined, and nearly all the jargoons, show these characteristic absorption spectra. The spectra of all the Algol variables are of the first or Sirian type. The signals for colour we might get from the spectra direct. Subsequently sodium and iron lines were found in cometary spectra. One of the spectra had dark lines and the other bright lines. Their spectra show a complexity of helium and hydrogen bands. Even the spectra of these elements seem to be identical so far as known. With those needs in mind, we view the Spectra T24 as a good option for companies seeking enterprise-level benefits at an affordable SMB price. We congratulate Spectra Logic and the other Big Bytes winners on their selection. Spectra Logic's former director of technical marketing and product management, Molly Rector, was named vice president of marketing. In uniaxial crystals the number of absorption spectra is reduced to two. A combination of images, spectra, and magnetic field measurements suggested that another Jovian moon, Ganymede, may also have had and may still harbor an ocean. Indra will use Spectra Tools for a number of SDR programs, including TERSO, the first Spanish SDR terminal. Also, postprocessing the ATR-FTIR data by subtracting the undoped spectra from the doped spectra can give a clearer indication of the presence of the adulterant. Find more words! 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Words that rhyme with spectra What is the adverb for spectra? What is the adjective for spectra? What is the noun for spectra? Use our Sentence Generator Nearby Words Spector spector specters specter spectatorship spectators spectral spectrality spectrally spectre spectres spectrofluorimeter 7-letter Words Starting With s sp spe spec spect spectr