1 focus, focuses/foci * formula, formulas/formulae * spectrum, spectrums/spectra.

2 This is more of a possibility in IR spectra.

3 The IR spectra are consistent with it being.

4 As agreement between calculated and experimental I-V spectra is good, this method is clearly viable for the analysis of experimental data.

5 Oxidative charge-transfer processes are observed in the spectra of complexes of low oxidation state metals with organic amines, such as.

6 Hundreds of asteroid spectra have been compared with laboratory reflection spectra of meteorites and pure mineral samples.

7 With Spectra or Dyneema, we have to adjust in the sleeving, and here a little extra care pays off dividends.

8 To assess this objectively, we fitted the power spectra to the following function where is the power spectral density at frequency.

9 The technique produces spectra which sometimes include several peaks for a single crystal.

10 Studies of the spectra of about fifty NEAs have given us some valuable clues to their nature and origin.

11 For more complex molecules in whose spectra vibrational detail is not resolved, assignments are difficult to make.

12 It is also possible to record vibrational spectra of solid samples under high and varying pressure.

13 Three small NEAs have spectra very similar to those of basaltic achondrites and of the asteroid Vesta.

14 We shall see, however, that electronic spectra rarely give us direct information about molecular structures.

15 In the face of these difficulties, it is remarkable that the spectra of some forty-five NEAs have been studied.

16 For example, the striking color of Prussian Blue is an indication that electronic spectra may have unusual features.

17 To the untrained eye, pretty pictures count for more than interesting spectra; neither are they without scientific interest.

18 More recently, the use of lasers to excite specific upper state levels has allowed emission spectra to be studied.

19 As well as the frequency spectrum, one can define wave number spectra - Fourier transforms of the space correlations.

20 The two measurements are necessary, since visual pigments are light sensitive and have characteristic absorption spectra under these different light conditions.

21 One additional device is a spectrometer to study the infrared spectra of strong point sources.

22 Finally, to summarise, this is a useful compilation of the Raman spectra of polymers, despite some shortcomings.

23 In the present epoch the systematic red shift of galactic spectra indicates that the Universe is expanding.

24 This is one sign of the richness of the electronic spectra of compounds containing transition metal centers.

25 Analogous distinctions between band envelopes may be made for Raman spectra of gaseous asymmetric tops, but they are not commonly used.

26 In the past, much of the work with flowing gases used photographic recording of electronic emission or absorption spectra.

27 But it can be a complicated matter to extract useful information from the observed spectra.

28 Strenuous efforts have been made to program such recognition abilities into microcomputers and several packages for manipulating and comparing spectra are available.

29 This approach, although still somewhat restrictive has led to reasonable predictions of relaxation and retardation spectra.

30 Such structural changes are of course accompanied by changes in vibrational spectra.

31 In Raman spectra, these are usually much weaker than fundamentals.

32 It may therefore be necessary to record both spectra to check for modes inactive in one but active in the other.

33 Typical arrangements for recording Raman spectra of liquids, solids and gases are shown in Fig. 5.12.

34 Problems arise in recording Raman spectra of fluorescent samples, as the fluorescence is often much more intense than the Raman signal.

35 The resonance scattering spectra of colibacillus have been studied.

36 Other series spectra for hydrogen have since been discovered.

37 The larger atoms have much more complex spectra.

38 Investigation of atomic spectra yields atomic energy levels.

39 HIGHLY IONIZED POTASSIUM AND CALCIUM SPECTRA.

40 Continuous spectra are appropriate to the clash of cymbals.

41 Infrared spectra are exceedingly complex.

42 Filter selection is made using inherent spectra.

43 The conclusive evidence on their nature came from spectra.

44 The exciplex emission was the reason for appearance of a shoulder peak in EL spectra.

45 These can provide the theoretical basis for exploration using remote sensing technology in the vegetation area. The abnormal information on spectra was extracted by remote sensing (TM) data.

46 From the negative-ion full scan mass spectra of the two standard herbs, 16 higher peaks were selected and two characteristic spectra were established.

47 Two new complexes of L-lysine, L-threonine and Arsenic triiodide were synthesized by the solid phase reaction and characterized by elemental analysis, XRD, UV spectra and IR spectra.

48 The infra - red spectra of quinones present a number of interesting features.

49 Different photodissociation spectra, the action spectrum as function of laser wavelength, and ratio curve of different channels were obtained.

50 We have studied the dispersion and optical transmission spectra of the dual - periodic one - dimensional photonic crystals.

51 The powder pharmaceutical samples of sulfaguanidine are analyzed nondestructive by conventional and first derivative near-infrared diffuse reflectance spectra.

52 The spectra of the demodulated signal and the relationship between the input and output are also given.

53 Based on the investigation of the plants in Thuja sutchuenensis community, the life form spectra, leaf character, and hierarchical-synusia structure in the community were analyzed.

54 The electron impact and field desorption mass spectra of 10 2,4-diamino-6-substituted quinazoline sulfonamides were investigated.

55 However(Sentencedict), absorption peak of Sexadentate Titanium was not detected at the high temperature. it might not be detected by IR Spectra because of too little Titanium phase.

56 The latent root regression model with near-infrared spectra of 40 soybean samples was founded for analyzing the content of soybean protein in this study.

57 Gain spectra of the modulation instability as function of birefringence and polarized angel has been given.

58 The second is the processing of complex overlapped spectra by AXIL program package.

59 The detector and sample box system is desirable to set up a two-channel Mossbauer spectrometer, so as to obtain both absorption attd backscattering spectra simultaneously.

60 The denaturation temperatures and circular dichroism(CD)spectra of the collagens treated by glycerol with different concentrations were determined.

61 A agreement between experimental values and the calculated results of constituent quark model is obtained for baryon spectra and strong, electromagnetic, weak decay of baryons .

62 Variances associated with the spectra are also given in table 2 - 5 .

63 Thus, the abnormalism of cholesterol in serum can be judged by comparing the absorption and fluorescence spectra.

64 Surface-enhanced Raman spectra of O-phenanthroline, 2, 2'-bipyridine and their complex ions adsorbed on silver colloid.

65 Resonance Raman spectra have been reported firstly for soluble polyacetylene prepared by rare-earth catalyst.

66 Questions about norms and spectra are likely to be recalcitrant.

67 According to the spectra of sound pressure the predictions of the resonant bubble fraction are deduced.

68 The redshift in the observed fluorescence spectra caused by the fluorescence reabsorption is calculated considering the reflection on the boundary and material size.

69 The advantage of the method is shown by comparing the results with the usual ordinate expansion technique in determination of FT-IR spectra of optically dense materials.

70 It is suggested that the monomer, exciplex and electroplex emissions are simultaneously involved in EL spectra by comparison of the EL with the PL spectra and decomposition of the EL spectrum.

71 And it is determined by UV-260 and IR-408. The insecticidal experiments of extracts and crystals from ricinine in by different solvents in different time and the UV and IR spectra of them.

72 The experimental result indicated that identification of FT-IR spectra was simple and accurate and could be used to identify and analyze the Chinese traditional herb Lygodium japonicum (Thunb) Sw.

73 The rotation vibration spectra can be classified using irreducible representation of group U(5) for the triatomic molecule.

74 Exposure ratios between spectral bands are determined from in situ reflectance spectra of objects in scene.

75 The noise power spectra of the non-contact detection system for LED chips and the noise suppression methods are discussed.

76 The change of lipid spectra can act as an indirect index to judge the curative effect of thyroid dysfunction and to predict the cardiovascular and cerebrovascular complications.

77 The modes of occurrence of Fe and Ti in kaolin of west Beijing were studied in detail by AEM and Mossbauer spectra.

78 It was surprising when the alkali spectra showed unmistakable doublets.

79 A series of azo hydroxyporphyrin - oxadiazole compounds were synthesized and characterized by 1 HNMR, FAB - MS, IR and UV - Vis spectra.

80 The emission spectra were obtained by using the concentration modulation spectroscopic technique.

81 The theoretical results have been verified by both the experimental photoemission spectra and ground-state properties, as well as the superconductivity data.

82 The mechanism of the photoinduced electron injection was also discussed through ESR spectra.

83 Because of exist of the cavum, there is some regular spectra structure on the original quantum transport pattern structure.

84 The proposed method was applied to extracting pure spectra and determining background of a two component system which consists of dichloroethane and propanone , satisfactory results were obtained.

85 The results showed that polyphenyl-1,3,5-triazine has outstanding heat and hydrolytic stability because no notable changes were observed on the IR spectra.sentencedict .com

86 By using an improved conical bubble U tube, the spectra of conical bubble sonoluminescence in glycol are detected.

87 The proof of grafting was established by IR spectra, ninhydrin test, nitrogen estimation and other analytical methods.

88 With the equalizing filter made by long period grating(LPG), we design the flat gain spectra of EDFA.

89 It is difficult to determine the mixtures of phenol, m-cresol and thymol directly by routine analytical method since their fluorescent spectra are overlapped closely.

90 The results obtained from the determination of sequence structure of copolyamide of HDA-PPD-TPC showed that the method can be used for copolycondensation polymers with overlapping peak NMR spectra.

91 The exponent-type homologous linear rule of organic homologs was verified by using the electronic spectra of chain compounds of conjugated polyene.

92 The interaction between the metal complex of hydrazide of podophyllic acid and calf thymus (CT) DNA was studied by using absorption spectra, fluorescence spectra and DNA heat denaturation .

93 A phase spectra alignment algorithm was also developed for lower sampling frequencies which reduce the influence caused by detector misalignment while detecting tiny TWA amplitudes.

94 Because only atomic hydrogen has that set of lines which means I could then take the spectra of gas phase species and use that information to identify.

95 The approach to the study of electrochrimic materials is mainly based on electrochemistry and UV - visible spectra.

96 The influences of rapidly changing signals to human perception can be stressed by filtering the relative spectra(RASTA) for MFCC.

97 Especially the contribution to crack initiation life of the ground-air-ground circle in the crack growth formula is underestimated under the transport spectra.

98 It is shown that for the same system, under different bias voltages, the spectra of the electron transmissivity change obviously within a certain energy range.

99 The fluorescence emission spectra of five typical triatomic rare gas halide excimers have been observed from electron-beam-excited high-pressure mixtures.

100 Based on the theoretical studies on the power flow in the flexible coupling system of machinery and building floor, the power flow transmission spectra are further investigated experimentally.

101 In this paper a programming method for the fitting of mossbauer spectra on pocket computer PC 1500 with small internal storage is introduced.

102 Objective To explore if the IR spectra analysis is useful for learning the Ophicalcitum, compare with the character of IR spectrometry before and after calcination.

103 The measurement of vacuum ultraviolet spectra (500-2000A) from a target plasma device is described. The plasma spectra, impurities, impurity sources and radiation mechanism of plasma gun are analysed.

104 A study of doubly charged ion mass spectra (2E spectra), the substituents effect and the target gas pressure deppendence of biphenyl derivitives was presented in this work.

105 Differently, amplitude spectra of the mesoscale heat fluxes, besides wave number corresponding to heterogeneous length scale,() still have several peaks at other wave numbers.

106 In order to develop a new technique diagnosing gastric precancer, we constructed a simple spectral measuring equipment to obtain the diffuse reflectance spectra from the gastric tissue.

107 These clouds show spectra remarkably similar to those of the illuminating star.

108 LFR spectra include a main peak for stimulation in the red region, and a major peak for inhibition in the far-red region.

109 In addition to zeatin other cytokinins were found in the extract by the method of ultraviolet absorption spectra.

110 Povlen type hydroxyl- chrysotile is a new variety of Povlen type Chrysotile , whose absorption, infrared, Mssbauer, EPR and NMR spectra are reported in this paper.

111 The interaction between artemisinin and hemin was also studied using SERS spectra. The adsorption of artemisinin on silver had evident change after addition of hemin.

112 The activation mechanism of C_(28) and acidified sodium silicate were investigated by means of ESCA and IR spectra.

113 The interaction mechanism of diethylmalonylurea(BBT) with bovine serum albumin(BSA) was studied by fluorescence and UV-Vis spectra.

114 Objective By analyzing the NMR spectra of analogs of Baogongteng A, tropane alkaloids, the effects of structural variations on chemical shifts of resonance signals were investigated.

115 It is possible to describe the excitation spectra in terms of elementary modes of excitation.

116 Both vanillin and ethyl maltol have absorption at UV range(sentence dictionary), and their absorption spectra are seriously overlapping.

117 The attosecond X-ray pulses strong field electronic dynamics of both bound and continuum electrons can be characterized by measuring the high energy photoelectron spectra yielded by recollision.

118 There is a curious feature in the spectra of spiral galaxies.

119 The third derivative spectra of the imaginary part of dielectric functions for two samples were evaluated by the numerical differentiation.

120 The techniques have advantages over conventional single quantum NMR method in obtaining simple analyzable spectra which make study of molecular structure and conformation possible.

121 The band of charge transfer transition is detected in optical absorption spectra when molecules are adsorbed on silver surface in silver sol and silver mirror.

122 Resonance light scattering (RLS), fluorescence and absorption spectra of eosine Y (EY) has been measured to study the difference and relationship between RLS and resonance fluorescence.

123 The transmission spectra of TM mode in the bend waveguide with triangular lattice of dielectric rods and TE mode in the bend waveguide have been calculated.

124 Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.

125 This paper presents a new automatic spectra - stabilization method for natural gamma ray spectralog.

126 In this paper, the ESR (electron spin resonance) spectra of gold bearing quartz and pyrite have been systematically studied by means of JES FE1XG model ESR spectrometer.

127 The vibration spectra of two special patterns for H2S ground electronic state were studied by using discrete variable representation(DVR)scheme.

128 X — Ray Diffraction ( XRD ) spectra indicate that these compounds are single perovskite in structure.

129 A series of free radicals and the neutral molecules were identified by measuring of photoionization mass spectrometry combined with photoionization efficiency spectra.

130 Adsorption orientation of artemisinin on Ag surface was studied using molecular mechanics and SERS spectra by which the effect of electrode voltage on the SERS intensities were observed.

131 FT-Raman and surface enhanced Raman spectra (SERS) of leucine and isoleucine, the only iso- mer in proteinic amino acids, on the silver colloidal substrate are recorded.

132 A serials of complexes of chrysin and its sulfonate derivates were synthesized. And the structures were characterized by spectra and X-ray single-crystal diffraction analysis.

133 This relation between the frequency and the field spectra was noted experimentally.

134 Based on the principle of conservation of wave action flux, the equation for the calculation of wave spectra transformation in current is derived.

135 The pyrazoles ramification containing dithioether is synthesized by one-step method and characterized by H-NMR, IR and UV-Vis spectra.

136 Infrared spectra (FTIR) showed that mechanochemistry reaction occurred and the resultants mainly were humic acid salt during milling.

137 The sample spectra were obtained with the cuvette holder in - line between the fibers.

138 These motions produce a shift in the position of lines in their spectra.

139 Five parts were included in this thesis:1. Fluorescence spectra of scopoletin and scopolin in CE were studied.

140 Its response to seism has been analyzed by the response spectra method and the linear history method.

141 A series of UV and visibe spectra of aromatic nitro compounds reacting with sodium polysulfide were determined. The intermediates and mechanisms of these reactions were discussed.

142 The interaction between diiodofluorescein and bovine serum albumins in aqueous solution was studied by fluorescence and ultraviolet-visible absorption spectra.

143 This paper discussed the emendation of the luminescent spectra of semiconductor films.

144 The characteristics of visible spectra of Sn and Fe in Ti-based alloys were studied with grating spectroscope and prism spectroscope.

145 Recordings were analyzed for changes in EEG power spectra, power topography, and sleep - specific cortical oscillations.

145 is a online sentence dictionary, on which you can find good sentences for a large number of words.

146 It is postulated that associated gold ions are adsorbed on the levextrel resin examined from the infrared spectra and ultraviolet spectra.

147 The title compound was synthesized with phenanthrenequinone as starting material and was characterized by IR and 1H NMR spectra.

148 They could look at the spectra of the light the moons reflected.

149 Resolving and fitting computation has been made on multicomponent impedance and admittance spectra of fast ion solid-electrode systems by least square method for tho two dimensional CHEBYSHEV set.

150 Convolutional differentiator (CD) is obtained by inverse Fourier transform of bandlimited Fourier spectra of partial derivative operator. CD is symmetric or antisymmetric and decays rapidly.

151 The simulated - spectra will be useful in quantitative assessing performance of FTIS sensors and spectral - discriminator.

152 A real data set from near infrared reflectance spectra of aspirin used to build up artificial network to predict unknown samples .

153 It is also pointed out that, only after both real part (or co-spectrum) and imaginary part (or quadrature spectrum) of cross spectra between random wind loads of an...

154 The optical properties of AlN samples, involving absorption spectra, FT - IR spectra and Raman spectra, were investigated.

155 This paper presented a measuring system test skins color and reflecting spectra with optic fiber probe.

156 Astronomers will have to collect more spectra from these stars to confirm their suspicions.

157 Au particle of the size in the range of 10—189 nm has been prepared by sodium citrate procedure. The resonance scattering spectra of Au particle have been studied.

158 The optical properties of AlN samples, involving absorption spectra, photoluminescence spectra and time - resolved spectra, were investigated.

159 The UV - Vis spectra of amphiphilic porphyrins in aqueous and salt solution were analyzed at neutral condition.

160 In addition, we have analyzed the electrochemistry,[] surface photovoltage spectroscopy and fluorescence spectra of these complexes.

161 Infrared absorption spectra is used to analyse the various acylchitins. Their solubility and meltability are also investigated.

162 The typical spectra of the phosphor of the yttrium aluminum garnet (YAG)projection tube are given.

163 The tribochemical changes of dodecane and stearic acid in the course of friction was studied through tribology experiments and infrared spectra analysis.

164 Resonant laser ablation also provides a simple means for measuring atomic spectra.

165 Methods: PBSC of 29 cases was collected by MNC or Auto - PBSC program in COBE Spectra.

166 In this paper, the mid-infrared Attenuated Total Reflection (ATR) spectra of two slathered pesticides dichlorvos and ( trichlorfon ) in vegetable juice solution have been investigated.

167 The results show that the reflectance spectra of J-aggregates of anionic-cationic cyanine dyes adsorbed on AgBrI microcrystals have peak wavelengths of anionic and cationic cyanine dyes.

168 Infrared spectra of Papaver somniferum L. and Papaver rhoeas were obtained directly, quickly and accurately by Fourier transform infrared spectroscopy (FTIR) with OMNI sampler.

169 In this paper, the feature of infrared spectra and thermostability of sandwich like molybdophosphates have been studied by IR and TGA-DSC method.