How to use excitation in a sentence

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Sentence Examples The excitation and x-ray pulses pass through a high-pass filter, which blocks both laser light and low-energy x-ray photons. The excitation source used was an argon-ion laser-pumped, regeneratively amplified Ti-sapphire laser operating at 250 kHz repetition rate. After light excitation, the protein transfers the excess energy via vibrational relaxation to the surrounding water bath. This follows from the response of any resonant system to an impulse-like excitation. A barrier valve including an armature, longitudinally movable toward a pole core by excitation of an electrical winding. It is consistent with emission from different rotamers of the cyanine dyes formed immediately after excitation. Chemiluminescence is a special case of luminescence in which the excitation source is a chemical reaction. The major axes of both ellipses point nearly in the direction of maximum hair bundle excitation. Variable frequency sawtooth waveforms are often utilized as an excitation signal in a digital musical synthesizer. Pyrethroids attack the nervous system of insects, provoking excitation, paralysis and death. The increased density ends up requiring more energy for the same amount of excitation that would lead to the boiling of the water. Two-photon excitation is a nonlinear process in which a fluorophore absorbs two photons simultaneously. 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. Vibrations of the nanospheres arose through natural thermal excitation, as well as stimulation by the incident light. The solution was scaled so as to normalize the peaks in excitation and emission spectra to unity. The transverse tubular system of cardiac muscle is a structure that allows rapid propagation of excitation into the cell interior. In muscle cells, nicotinic receptors present at the neuromuscular junction mediate rapid excitation that leads to muscle contraction. These reflexes are initiated by the excitation of duodenal mucosal chemoreceptors to acid, fats, and osmotic pressure in the luminal contents. Show More Sentences Light resulting from the laser excitation of fluorochromed cells is detected by photosensors and converted into a set of digital values. Nausea can also be of central origin, arising from direct excitation of medullary receptors by systemic toxins. One of the photointermediates interacts with the G protein, resulting in the electrical excitation of a photoreceptor cell. Events that stimulate muscle activity by raising sarcoplasmic calcium begin with neural excitation at neuromuscular junctions. This contraction arises from excitation of the circular layer of smooth muscle by autonomic nerves. The researchers then cultured sensory nerve cells and measured the level of intracellular calcium, as a measure of nerve cell excitation. Fleming and his colleagues were able to extend this technique to electronic excitations which require visible light for their excitation. The microsecond components of the electric signals for excitation of O and bR are very different. We can readily observe resonant behavior of MCs using excitation in alternated electric, electromagnetic, or acoustic fields. From analyzing the recorded signal, both the excitation and response of the ground are obtained simultaneously. Thus, in Freud's energetic representation of the nervous-system there are two economies that impart psychical excitation. The excitation beam was split into two by a beam splitter, and crossed inside a sample cell. For each instrument a beam splitter directs a small portion of the excitation output to a photon-counting device. The stains have been used to sensitively detect single DNA fragments using two-photon fluorescence excitation. Polarization images probe linear birefringence and can only achieve contrast by having orthogonal polarizers for excitation and collection. The slit widths of the excitation and emission monochromators were set at 1 nm. It can thus be regarded as a simultaneous excitation of two triplets, whose coupling generates an overall singlet state. It is known that due to the bolometric effect dipole excitation of electrons can effectively heat the 2DES and change its resistance. The laser beam for Raman excitation was focused to a static diffraction limited spot in the center of the focal plane. The other part is used to pump an optical parametric amplifier, which provides excitation in a broad spectral range. Show More Sentences The optical density of the imine solution was adjusted to approximately 1 at the excitation wavelength. Our two-color scheme is easily implemented using conventional continuous wave excitation. The excitation and transmitted light is collimated by a set of focusing lenses on either side of the sample chamber. Another advantage of two-photon excitation is the decreased extent of photobleaching and photodamage above and below the focal plane. Thus state transitions appear to act as a mechanism to balance excitation of the two photosystems under changing light regimes. The team created an electronic excitation by zapping the cluster with a femtosecond laser pulse. An imbalance of excitation and inhibition may underlie several neurological diseases, including autism, Tourette's syndrome and schizophrenia. The changes in the excitation spectrum can be related to the degree of invasiveness of the carcinoma. Consequently, there may be a layer of fluid water around the chromophore that rearranges upon excitation. The balance can be assessed fluorometrically as the redox state of plastoquinone pool and is referred to as excitation pressure. Perhaps more important, excitation and photobleaching are limited to the focal region. Furthermore, the model postulates that individuals vary in their propensity for both excitation and inhibition. When the radio-wave frequency causing proton excitation is removed, the protons relax and return to their steady-state orientation. This excitation energy is funneled through a series of molecules into a reaction center where it is converted to chemical energy. Data were acquired with single pulse excitation under high-power broadband proton decoupling. However, it has not been determined whether pulsed light excitation is superior to cw light excitation in terms of treatable tissue depth. A ground glass was placed in front of the sample cell to defuse the excitation beam. To achieve the correct radiation pattern, each subarray must exhibit a dissymmetrical source excitation. The isotropic emission spectra were normalized to the corresponding absorbance at the excitation wavelength. This led us to shift the excitation to a lower wavelength to minimize the contribution from Rayleigh scattering in the emission spectra. Show More Sentences Simplified model fitting of the experimental data enabled to evaluate the spectroscopic parameters characterizing excitation and photoionization processes. These data demonstrate that parallel measurements with UV-A and UV-B excitation can give an indication of the absorption properties of the screening compounds. In the Rydberg system, instead of shrinking the lattice constant to make the atoms overlap, you can simply increase the size of the atom by increasing its excitation. Essential for its use as a marker in protoplast fusion is its ease of detection by illuminating live cells or tissues at the appropriate excitation wavelength. The excitation energy transfer is performed by exchange of excitation among the pigment molecules according to the strength of their electrodynamic interactions. Magnetic excitation, as well as other direct excitation methods, enable the drive signal to be directly related to the drive force and thus to the response of the cantilever. In 1902, he published his theory of electron excitation and luminescence. The end of each fiber was polished at 40 deg to its longitudinal axis to produce total internal reflection of excitation light and collected fluorescence at this face. In addition, two-photon systems employ near-infrared light for excitation, which minimizes tissue damage, photobleaching, and intrinsic tissue fluorescence. N 2 and O 2 can therefore only absorb light through electronic excitation. This occurs at chemical synapses when neurotransmitters are released from the presynaptic neuron and produce excitation or inhibition of the postsynaptic cell. However, it is difficult to directly compare these results with our study because different cell lines, excitation wavelengths, and power levels were used. The electric field oscillations of the same 5-fs laser pulse are then used to probe the time structure of electron emission accompanying the impulsive x-ray excitation. This allowed us to condense several data sets taken on the same protein at the same excitation wavelength, but with different confocal geometries, into a single curve. Evidence from both species supports the conclusion that the excitation derives from glutamatergic premotor interneurones and cholinergic homonymous motorneurones. These asymmetries result both from the nature of the coordination of the two muscle layers and from the patterns of spread of excitation within the muscle layers. By the use of two mirrors, the fluorescence excitation light of 295-nm wavelength was directed perpendicular onto one of the smallest sides of the quartz prism. The classical concept of fusion is a three-step process of cell excitation, docking, and fusion, in which docking may occur before cell excitation. Theoretical models based on current injection membranes predict that excitation will occur for currents of all strengths once a threshold is exceeded. The brain consists of millions of interconnected neurons, and cognitive activity reduces, ultimately, to patterns of neuronal excitation and inhibition. Show More Sentences The excitation of the guitar string remains a seemingly endless resource. For that reason, the emission of red fluorescence on excitation of cancerous tissue by blue light increases more than the emission of green fluorescence. The photovoltaic signal continues to rise for 4.5 ps after excitation, and the voltage profile corresponds well with the population dynamics of the K state. Stimulated emission with a beam that is red-shifted with respect to the excitation wavelength can quench the fluorescence of the excited molecules. The signal was isolated from the excitation laser beam with a glass filter and a pinhole, detected by a photomultiplier tube, and recorded by a digital oscilloscope. In general, this study's results suggest the woman's consent, or lack thereof, influenced the predictive utility of both sexual excitation and attraction to sexual aggression. The excitation wavelength was 309 nm and the emission was monitored at 371 nm with a slit setting of 0.59 mm corresponding to a 2.5-nm spectral bandpass. Steady-state fluorescence was measured with a SPEX spectrofluorometer with excitation and emission slits providing a bandpass of 7.2 and 3.6 nm, respectively. Extreme sexual excitation after periods of abstinence can cause it. During in vivo measurements, excitation light is incident upon the epithelium, and must travel through this tissue layer before reaching the stroma. Hyposexual desire may result from hypofunctional excitation, hyperfunctional inhibition, or some mix of the two. Field weakening allows an electric machine to operate beyond the designed frequency of excitation. Impulses in the PGO generators can be triggered by any of these inputs through direct excitation or postinhibitory rebound excitation. This leads to a spectral shift as emission light is postfiltered by excitation of the fluorophore. Dionysian sparagmos was an ecstasy of sexual excitation and superhuman strength. The results give us reason to hope that such systems will demonstrate adaptivity to external excitation. The first volume looks at recent research on quasiparticle dynamics, collective excitation, electron transfer, and photoinduced dynamics. We report on new level-resolved calculations for the dielectronic recombination and collisional excitation of the low charge states of argon. Autofluorescent proteins with excitation in the optical window for intravital imaging in mammals. An imbalance between the inhibitory and excitatory signals of the brain, leading to a sudden onset of excitation, results in seizures. Show More Sentences It can be seen that length of major axes of the ellipses are different because of different excitation schemes. One priest discovered that he could give excitation for plants with invocate and accelerate their growth. A Nikon fluorescent microscope with BG-12 excitation filter and 0-530 barrier filter was used for observation and microphotography. The formed complex was measured fluorometrically with excitation at 355 run and emission at 450 run. The probe laser beam was focused on the blood sample collinearly with the excitation laser pulse. This bifunctional cloaking performance is also numerically verified for a line-source nonuniform excitation. Arc and spark are two excitation techniques for OES and are almost always available in a single instrument system. After a preliminary course in anatomy it was found that caecum and transverse colon also provided excellent sites for excitation. This mode generates an electrical current independent of calcium transport that contributes to excitation of the heart. The modal analysis was used to characterize the eigenoscillation behaviour of the structure without external excitation. The process begins with oligonucleotides that are labeled with donor or acceptor fluorophores, each fluorophore illuminating at a unique wavelength of light upon excitation. The transition is accompanied by the onset of short-range correlations, suppression of the superfluid response, and rotonization of the excitation spectrum. We investigate a method of selectively targeting cancer cells by means of ultrasound harmonic excitation at their resonance frequency, which we refer to as oncotripsy. Raman amplifiers are inferior to EDFA in terms of excitation efficiency. Fluorescence determinations were performed with a LS55 fluorospectrometer with excitation at 360 nm and emission detection at 430 nm with a 10 nm bandwidth. Unknown proteins are specifically captured on treated surfaces, desorbed and ionized by laser excitation, and detected according to molecular weight. Quantitative fluorescence excitation spectra of synthetic eumelanin. Examples from Classical Literature The conduction of excitation consists, on the other hand, of propagation of excitatory protoplasmic change. This over excitation of neurons may come from without, or may come from within. Such a case admirably illustrates the compensatory relation of sexual and vesical excitation. Brunonian System, a system which regards and treats diseases as due to defective or excessive excitation, as sthenic or asthenic. He pointed out that the excitation of the heart due to the action of alcohol was reflected in an overdistention of the arteries. In Mimosa excitation is manifested by the contraction of the pulvinus and the consequent movement of the leaf. This mode of propagation may better be described as a convection of excitation. The condition is one of excitation and receptiveness, where art may speak and we shall understand. Is there not here all the excitation in the world for our sorrow, our pity, our indignation? Their recollection is not an act of the will, but an excitation by the object that originally produced it. On September 14 he tried various experiments on the excitation of electricity. We all dropt in spirit like so many sacks, after the excitation of the morning. And therefore the will could suspend its exercise and its excitation of the mind. The Spectro Phoenix unit utilizes an x-ray tube as its source of excitation, and a proportional counter as its detection system. The influence of the parameters of the mechanical system and vibratory excitation on the process of alignments is defined. It gets larger, for example, in cases of dynamogenic excitation. I may read him to-day with enjoyment, but safe from excitation. Now, every vital action supposes an excitation or irritation. The influence that had passed into Clare like an excitation from the sky did not die down. The amplitude of the response-curve measures the intensity of excitation. Show More Sentences Instead, with weird little chirrupings of encouragement and excitation, he persuaded Jerry to dig a tunnel beneath the rude palisade of fence. However, the spread of excitation from the pacemaker or ectopic site within PVs to the rest of myocardial sleeve and LA are not clear. The demand for rare gases is primarily driven by lighting segment, wherein neon, xenon and krypton are used due to their light emitting properties on electrical excitation. Find more words! 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What is the opposite of excitation? Words that rhyme with excitation What is the plural of excitation? What is the adverb for excitation? What is the adjective for excitation? What is the noun for excitation? Use our Sentence Generator Nearby Words excitant excitably excitable excitability excisions excisional excitatory excite excited excited about excitedly excited state 10-letter Words Starting With e ex exc exci excit excita excitat excitati excitatio