Relevant bibliographies by topics / Spectral variety

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Spectral variety'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Spectral variety.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Spectral variety"

1

Huang, Yuping, Yutu Yang, Ye Sun, Haiyan Zhou, and Kunjie Chen. "Identification of Apple Varieties Using a Multichannel Hyperspectral Imaging System." Sensors 20, no. 18 (2020): 5120. http://dx.doi.org/10.3390/s20185120.

Full text
Abstract:
This paper reports the nondestructive detection of apple varieties using a multichannel hyperspectral imaging system consisting of an illumination fiber and 30 detection fibers arranged at source–detector distances of 1.5–36 mm over the spectral range of 550–1650 nm. Spatially resolved (SR) spectra were obtained for 1500 apples, 500 each of three varieties from the same orchard to avoid environmental and geographical influences. Partial least squares discriminant analysis (PLSDA) models were developed for single SR spectra and spectral combinations to compare their performance of variety detec
APA, Harvard, Vancouver, ISO, and other styles
2

Noguchi, Kunio, Jinghao Sun, and Gang Wang. "Infrared Spectra and Circumstellar Emission of Late-Type Stars. III. S-Type Stars." Publications of the Astronomical Society of Japan 43, no. 2 (1991): 311–43. https://doi.org/10.1093/pasj/43.2.311.

Full text
Abstract:
Abstract Near-infrared photometry was carried out at the J, H, K, and L bands for 73 S-type stars. The statistical characteristics of the infrared spectra and the circumstellar emission of S-type stars were examined using nearinfrared photometric data, IRAS photometric data, and the low-resolution spectra obtained by IRAS. The characteristics of the photometric spectra of S-type stars were compared with those of oxygen-rich stars and carbon stars. We found that MS and SC stars have infrared spectral characteristics similar to those of both oxygen-rich stars and carbon stars, respectively. Howe
APA, Harvard, Vancouver, ISO, and other styles
3

Borgonovi, F., and D. Shepelyansky. "Spectral Variety in the Kicked Harper Model." Europhysics Letters (EPL) 29, no. 2 (1995): 117–22. http://dx.doi.org/10.1209/0295-5075/29/2/002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Feng, Lei, Susu Zhu, Chu Zhang, Yidan Bao, Pan Gao, and Yong He. "Variety Identification of Raisins Using Near-Infrared Hyperspectral Imaging." Molecules 23, no. 11 (2018): 2907. http://dx.doi.org/10.3390/molecules23112907.

Full text
Abstract:
Different varieties of raisins have different nutritional properties and vary in commercial value. An identification method of raisin varieties using hyperspectral imaging was explored. Hyperspectral images of two different varieties of raisins (Wuhebai and Xiangfei) at spectral range of 874–1734 nm were acquired, and each variety contained three grades. Pixel-wise spectra were extracted and preprocessed by wavelet transform and standard normal variate, and object-wise spectra (sample average spectra) were calculated. Principal component analysis (PCA) and independent component analysis (ICA)
APA, Harvard, Vancouver, ISO, and other styles
5

Small, Christopher, and Daniel Sousa. "The Sentinel 2 MSI Spectral Mixing Space." Remote Sensing 14, no. 22 (2022): 5748. http://dx.doi.org/10.3390/rs14225748.

Full text
Abstract:
A composite spectral feature space is used to characterize the spectral mixing properties of Sentinel 2 Multispectral Instrument (MSI) spectra over a wide diversity of landscapes. Characterizing the linearity of spectral mixing and identifying bounding spectral endmembers allows the Substrate Vegetation Dark (SVD) spectral mixture model previously developed for the Landsat and MODIS sensors to be extended to the Sentinel 2 MSI sensors. The utility of the SVD model is its ability to represent a wide variety of landscapes in terms of the areal abundance of their most spectrally and physically di
APA, Harvard, Vancouver, ISO, and other styles
6

Burns, D., V. Guillemin, and A. Uribe. "The Spectral Density Function of a Toric Variety." Pure and Applied Mathematics Quarterly 6, no. 2 (2010): 361–82. http://dx.doi.org/10.4310/pamq.2010.v6.n2.a4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mironov, A. E. "Spectral subvarieties of a principally polarized Abelian variety." Russian Mathematical Surveys 59, no. 5 (2004): 969–70. http://dx.doi.org/10.1070/rm2004v059n05abeh000782.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Nishizawa, Norihiko, Sakiko Kobata, and Shotaro Kitajima. "Controllable, intense spectral peaking with a spectral filter and optical fiber." Optics Letters 47, no. 23 (2022): 6165. http://dx.doi.org/10.1364/ol.471957.

Full text
Abstract:
Nonlinear fiber effects are useful for controlling optical spectra in a wide variety of ways. Here, we report the demonstration of freely controllable, intense spectral peaking using a high-resolution spectral filter with a liquid-crystal spatial light modulator and nonlinear fibers. A large enhancement of spectral peak components by more than a factor of 10 was achieved by employing phase modulation. Multiple spectral peaks with an extremely high signal-to-background ratio (SBR) of up to 30 dB were generated simultaneously in a wide wavelength range. It was shown that part of the energy from
APA, Harvard, Vancouver, ISO, and other styles
9

Chen, Yunfeng, Yue Chen, Xuping Feng, et al. "Variety Identification of Orchids Using Fourier Transform Infrared Spectroscopy Combined with Stacked Sparse Auto-Encoder." Molecules 24, no. 13 (2019): 2506. http://dx.doi.org/10.3390/molecules24132506.

Full text
Abstract:
The feasibility of using the fourier transform infrared (FTIR) spectroscopic technique with a stacked sparse auto-encoder (SSAE) to identify orchid varieties was studied. Spectral data of 13 orchids varieties covering the spectral range of 4000–550 cm−1 were acquired to establish discriminant models and to select optimal spectral variables. K nearest neighbors (KNN), support vector machine (SVM), and SSAE models were built using full spectra. The SSAE model performed better than the KNN and SVM models and obtained a classification accuracy 99.4% in the calibration set and 97.9% in the predicti
APA, Harvard, Vancouver, ISO, and other styles
10

Hong, Zhiqi, Chu Zhang, Wenjian Song, Xiangbo Nie, Hongxia Ye, and Yong He. "Application of Hyperspectral Imaging for Identification of Melon Seed Variety Using Deep Learning." Agriculture 15, no. 11 (2025): 1139. https://doi.org/10.3390/agriculture15111139.

Full text
Abstract:
The accurate identification of melon seed varieties is essential for improving seed purity and the overall quality of melon production. In this study, hyperspectral imaging was used to identify six varieties of melon seeds. Both hyperspectral images and RGB images were generated during hyperspectral image acquisition. The spectral features of seeds were extracted from the hyperspectral images. The image features of the corresponding seeds were manually extracted from the RGB images. Five different datasets were formed using the spectral features and RGB images of the seeds, including seed spec
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Spectral variety"

1

Besson, Gérard. "Contributions à l'étude des propriétés spectrales des variétés riemanniennes." Grenoble 1, 1987. http://www.theses.fr/1987GRE10068.

Full text
Abstract:
Le travail qui est presente dans cette these se situe dans le cadre de la geometrie spectrale. Il se divise en deux volets : 1) la traduction spectrale de certains theoremes de comparaison geometrique, conduisant a des estimations d'invariants topologiques. 2) une etude de la multiplicite des valeurs propres sur les surfaces riemanniennes et des proprietes generiques des fonctions propres en presence de multiplicite; un calcul du spectre de certains domaines spheriques
APA, Harvard, Vancouver, ISO, and other styles
2

Courtois, Gilles. "Comportement du spectre d'une variété riemannienne compacte sous perturbation topologique par excision d'un domaine." Grenoble 1, 1987. http://www.theses.fr/1987GRE10092.

Full text
Abstract:
On compare le spectre d'une variete riemannienne compacte avec le spectre de dirichlet de cette variete privee d'une petite partie. Une condition necessaire et suffisante pour que ces deux spectres soient proches est que la capacite de la partie excisee soit proche de zero. Lorsque le spectre de dirichlet de la variete privee d'une partie est proche du spectre de la variete, c'est-a-dire lorsque la capacite de la partie tend vers zero, on determine l'equivalent asymptotique de l'ecart entre les valeurs propres correspondantes des deux spectres en fonction de la capacite et de la mesure capacit
APA, Harvard, Vancouver, ISO, and other styles
3

Le, Borgne Jean-François. "Calcul d'algèbre de Frobenius sur l'homologie des lacets libres d'une variété." Phd thesis, Université d'Angers, 2006. http://tel.archives-ouvertes.fr/tel-00259066.

Full text
Abstract:
En 1999, M.Chas et D.Sullivan ont mis en évidence sur l'homologie de l'espace des lacets libres d'une variété une structure de BV-algèbre. C'est ce qui fonde la théorie topologique des cordes. Dans cette thèse, nous montrons comment la compatibilité de la suite spectrale de Serre aux morphismes de Gysin de plongements lisses de codimension finie entre vari étés permet d'effectuer des calculs de ces structures de topologie des cordes. Nous étudions essentiellement le ”loop produit” et le ”loop coproduit” qui munissent l'homologie de l'espace des lacets libres d'une vari été d'une structure d'al
APA, Harvard, Vancouver, ISO, and other styles
4

Orstavik, Odd-Halvdan Sakse. "Analysis of chaotic multi-variate time-series from spatio-temporal dynamical systems." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314071.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chernoglazov, Alexander Igorevich. "Improving Visualisation of Large Multi-Variate Datasets: New Hardware-Based Compression Algorithms and Rendering Techniques." Thesis, University of Canterbury. Computer Science and Software Engineering, 2012. http://hdl.handle.net/10092/7004.

Full text
Abstract:
Spectral computed tomography (CT) is a novel medical imaging technique that involves simultaneously counting photons at several energy levels of the x-ray spectrum to obtain a single multi-variate dataset. Visualisation of such data poses significant challenges due its extremely large size and the need for interactive performance for scientific and medical end-users. This thesis explores the properties of spectral CT datasets and presents two algorithms for GPU-accelerated real-time rendering from compressed spectral CT data formats. In addition, we describe an optimised implementation of a v
APA, Harvard, Vancouver, ISO, and other styles
6

Cerocchi, Filippo. "Dynamical and Spectral applications of Gromov-Hausdorff Theory." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM077/document.

Full text
Abstract:
Cette thèse est divisée en deux parties. La première est consacrée à la méthode du barycentre, introduite en 1995 par G. Besson, G. Courtois et S. Gallot pour résoudre la conjecture de l'Entropie Minimale. Dans le Chapitre 1 nous décrivons ses développements les plus récents, notamment l'extension de cette méthode au cadre des variétés dont la courbure sectionnelle est de signe quelconque (voir les énoncés 1.2.1 et 1.4.1). Dans le Chapitre 2 et 3 nous présentons des résultats dans lesquels la méthode du barycentre joue un rôle important. Le problème “deux variétés dont les flots géodésiques so
APA, Harvard, Vancouver, ISO, and other styles
7

Yeganefar, Nader. "Formes harmoniques L2 sur les varietes a courbure negative." Phd thesis, Université de Nantes, 2003. http://tel.archives-ouvertes.fr/tel-00003778.

Full text
Abstract:
Nous étudions les espaces de formes harmoniques $L^2$ essentiellement sur les variétés de volume fini, à courbure négative et pincée. Notre but est d'en trouver une interprétation topologique. Nous montrons, dans un premier temps, que si la courbure est suffisamment pincée, il y a une telle interprétation simple de ces espaces. Nous construisons également des exemples qui montrent que notre hypothèse de pincement de la courbure est nécessaire et optimale. Dans un deuxième temps, nous considérons des variétés qui sont de plus kaehlériennes, et nous montrons, sans hypothèse sur le pincement, qu'
APA, Harvard, Vancouver, ISO, and other styles
8

Laroussi-Mezghani, Sonda. "Biodiversité des huiles d'olive vierges tunisiennes : valorisation à travers une démarche de qualité (Tunolival)." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4393.

Full text
Abstract:
Dans un objectif de valorisation des huiles d’olive tunisiennes, les huiles de huit variétés autochtones : Chemchali, Chemlali Sfax, Chemlali Zarzis, Chétoui, Oueslati, Sayali, Zalmati et Zarrazi ont été étudiées et caractérisées par des techniques spectroscopique et chromatographique en tenant compte de leurs composés mineurs (acides gras mineurs, squalène, phénols totaux et α-, β- et γ-tocophérols). Une banque de données à été créé à partir des analyses de la composition en acides gras et des spectres proche infrarouge de 516 échantillons d’huiles d’olive vierges. Quatre outils d’authentific
APA, Harvard, Vancouver, ISO, and other styles
9

Laroussi-Mezghani, Sonda. "Biodiversité des huiles d'olive vierges tunisiennes : valorisation à travers une démarche de qualité (Tunolival)." Electronic Thesis or Diss., Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4393.

Full text
Abstract:
Dans un objectif de valorisation des huiles d’olive tunisiennes, les huiles de huit variétés autochtones : Chemchali, Chemlali Sfax, Chemlali Zarzis, Chétoui, Oueslati, Sayali, Zalmati et Zarrazi ont été étudiées et caractérisées par des techniques spectroscopique et chromatographique en tenant compte de leurs composés mineurs (acides gras mineurs, squalène, phénols totaux et α-, β- et γ-tocophérols). Une banque de données à été créé à partir des analyses de la composition en acides gras et des spectres proche infrarouge de 516 échantillons d’huiles d’olive vierges. Quatre outils d’authentific
APA, Harvard, Vancouver, ISO, and other styles
10

OANCEA, ALEXANDRU. "La suite spectrale de Leray-Serre en homologie de Floer des varietes symplectiques compactes a bord de type contact." Phd thesis, Université Paris Sud - Paris XI, 2003. http://tel.archives-ouvertes.fr/tel-00005504.

Full text
Abstract:
Les groupes d'homologie de Floer pour varietes compactes a bord de type contact n'ont pas de correspondant topologique, a la difference des varietes fermees. Le but de cette these est d'en donner des proprietes qualitatives lorsque la variete est munie de structures topologiques supplementaires. Nous avons en vue les fibrations symplectiques (eventuellement triviales). Le premier chapitre de la these comprend deux parties : la premiere compare les differentes constructions de l'homologie de Floer et met en relief le principe specifique aux varietes a bord, a savoir la necessite d'obtenir des e
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Spectral variety"

1

United States. National Aeronautics and Space Administration., ed. [Simulation of gamma-ray spectra for a variety of user-specified detector designs: Semiannual technical report, 1 Mar.-31 Aug. 1994]. Constellation Technology Corporation, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Brogi Bercoff, Giovanna, and Maria Grazia Bartolini, eds. Kiev e Leopoli: Il 'testo' culturale. Firenze University Press, 2007. http://dx.doi.org/10.36253/978-88-8453-666-2.

Full text
Abstract:
Kiev has always revealed a surprising capacity for assimilation, giving rise over time to multi-ethnic, multi-faith and multi-cultural contexts of various types. Thinking of the "Kiev text" leads inevitably to consideration of the other emblematic text of the Ukrainian identity, the no less composite reality of Lviv. This publication contains the contributions presented at a Conference (Milan, February 2007) addressed to the "cultural text" of Kiev and Lviv. The authors are specialists with different cultural profiles, and the book is of a deliberately inter-disciplinary character. In view of
APA, Harvard, Vancouver, ISO, and other styles
3

Zein, Fouad El, and Lˆe D˜ung Tr ´ang. Mixed Hodge Structures. Edited by Eduardo Cattani, Fouad El Zein, Phillip A. Griffiths, and Lê Dũng Tráng. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691161341.003.0003.

Full text
Abstract:
This chapter discusses mixed Hodge structures (MHS). It first defines the abstract category of Hodge structures and introduces spectral sequences. The decomposition on the cohomology of Kähler manifolds is used to prove the degeneration at rank 1 of the spectral sequence defined by the filtration F on the de Rham complex in the projective nonsingular case. The chapter then introduces an abstract definition of MHS as an object of interest in linear algebra. It then attempts to develop algebraic homology techniques on filtered complexes up to filtered quasi-isomorphisms of complexes. Finally, th
APA, Harvard, Vancouver, ISO, and other styles
4

Spectre d`une Variete Riemannienne. Springer London, Limited, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chance, Kelly, and Randall V. Martin. Principles of Atmospheric Remote Sensing Measurements. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199662104.003.0010.

Full text
Abstract:
This chapter provides an overview of atmospheric remote sensing measurement types, with examples. Measurements are made from a variety of locations, platforms, and geometries, including ground-based measurements, aircraft measurements, balloon measurements, and satellite measurements. The chapter discusses spectral sampling, vertical sensitivity including air mass factors, and noise, which all affect measurements in fundamental ways. An overview of the state of trace gas and aerosol measurements from nadir-viewing satellites is given, and the upcoming geostationary constellation of air polluti
APA, Harvard, Vancouver, ISO, and other styles
6

Spectre Automorphe Des Varietes Hyperboliques Et Applications Topologiques. Amer Mathematical Society, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Alvesson, Mats, Yiannis Gabriel, and Roland Paulsen. Researchers Making Sense of Meaningless Research. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787099.003.0004.

Full text
Abstract:
Academics use a variety of rationalizations to make sense of their work and to justify practices that they themselves recognize as having little value to the wider world. These can be ordered along two spectra: the instrumentalism-narcissism-spectrum, referring to whether individual researchers aim at satisfying the needs of their own egos or to meet some external criteria and requirements of their profession; and the religiosity-cynicism-spectrum, referring to whether researchers believe that they are contributing to science as a great and noble enterprise, or whether they dismiss such ambiti
APA, Harvard, Vancouver, ISO, and other styles
8

[Simulation of gamma-ray spectra for a variety of user-specified detector designs: Semiannual technical report, 1 Mar.-31 Aug. 1994]. Constellation Technology Corporation, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

[Simulation of gamma-ray spectra for a variety of user-specified detector designs: Semiannual technical report, 1 Mar.-31 Aug. 1994]. Constellation Technology Corporation, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hall, Ann C., George Rodosthenous, Fintan Walsh, Alan Nadel, and Angeliki Poulou, eds. Dramatic Apparitions and Theatrical Ghosts. Bloomsbury Publishing Plc, 2023. http://dx.doi.org/10.5040/9781350371729.

Full text
Abstract:
Ghosts haunt the stages of world drama, appearing in classical Greek drama through to the plays of 21st-century dramatists. Tracing the phenomenon across time and in different cultures, the chapters collected here examine their representation, dramatic function and what they may tell us about the belief systems of their original audiences and the conditions of theatrical production. As illusions of illusions, they foreground many dramatic themes common to a wide variety of periods and cultures. Arranged chronologically, this collection examines how ghosts represent political change in Athenian
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Spectral variety"

1

Klein, Sebastian. "Construction of the Jacobi Variety for the Spectral Curve." In A Spectral Theory for Simply Periodic Solutions of the Sinh-Gordon Equation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01276-2_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Klein, Sebastian. "The Jacobi Variety and Translations of the Potential." In A Spectral Theory for Simply Periodic Solutions of the Sinh-Gordon Equation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01276-2_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Micsonai, András, Éva Bulyáki, and József Kardos. "BeStSel: From Secondary Structure Analysis to Protein Fold Prediction by Circular Dichroism Spectroscopy." In Methods in Molecular Biology. Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-0892-0_11.

Full text
Abstract:
Abstract Far-UV circular dichroism (CD) spectroscopy is a classical method for the study of the secondary structure of polypeptides in solution. It has been the general view that the α-helix content can be estimated accurately from the CD spectra. However, the technique was less reliable to estimate the β-sheet contents as a consequence of the structural variety of the β-sheets, which is reflected in a large spectral diversity of the CD spectra of proteins containing this secondary structure component. By taking into account the parallel or antiparallel orientation and the twist of the β-sheet
APA, Harvard, Vancouver, ISO, and other styles
4

Nagl, Nathalie, Philipp Steinleitner, Maciej Kowalczyk, et al. "Single-Cycle Infrared Waveform Generation and Control." In Springer Proceedings in Physics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-47938-0_1.

Full text
Abstract:
AbstractTailoring the electric-field waveform of few-cycle light pulses lays the foundation for controlling nonlinear optical phenomena on their genuine, attosecond time scale. So far, waveform control has been demonstrated mostly in the visible-to-near-infrared spectral region. Extending it to the mid-infrared range will open up new prospects in ultrafast optoelectronics as well as broadband field-resolved spectroscopy. We present a novel approach for shaping few-cycle waveforms, and thereby achieved the first multi-octave synthesis of single-cycle transients in the mid-infrared spectral rang
APA, Harvard, Vancouver, ISO, and other styles
5

Toscani, Matteo, and Anna Metzger. "A Database of Vibratory Signals from Free Haptic Exploration of Natural Material Textures and Perceptual Judgments (ViPer): Analysis of Spectral Statistics." In Haptics: Science, Technology, Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06249-0_36.

Full text
Abstract:
AbstractWe recorded vibratory patterns elicited by free haptic exploration of a large set of natural textures with a steel tool tip. Vision and audio signals during the exploration were excluded. After the exploration of each sample, participants provided judgments about its perceptual attributes and material category. We found that vibratory signals can be approximated by a single parameter in the temporal frequency domain, in a similar way as we can describe the spatial frequency spectrum of natural images. This parameter varies systematically between material categories and correlates with
APA, Harvard, Vancouver, ISO, and other styles
6

Kusch, Martin. "The Variety of Historiographical Medical Relativism." In Philosophy and Medicine. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-62241-0_5.

Full text
Abstract:
AbstractThis paper offers an analysis of three types of relativism in the historiography of medicine. Three authors—Andrew Cunningham, Nicholas Jewson, and Annemarie Mol—are presented as paradigmatic instances of these three versions. I first present thumbnail sketches of some of the mentioned authors’ best-known work. Subsequently, I situate them both relative to familiar relativistic positions in the philosophy and sociology of the (natural) sciences, and relative to a ‘spectrum of relativistic positions’ that I outline. The main upshot of the paper is do identify the main differences and co
APA, Harvard, Vancouver, ISO, and other styles
7

Park, Sora. "The Varied Spectrum of Digital Engagement." In Digital Capital. Palgrave Macmillan UK, 2017. http://dx.doi.org/10.1057/978-1-137-59332-0_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Wang, Xiangxiang, Hongsheng Zhang, and Wenwu Liu. "Study on Wind-Induced Response and Wind Vibration Coefficient of Tower Crane Under Different Wind Speed Spectra Excitation." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_60.

Full text
Abstract:
AbstractThe wind-induced response and wind vibration coefficient of tower cranes under different wind speed spectra and wind direction angles are investigated to reveal the influence of wind speed distribution on the wind vibration characteristics of tower cranes. Firstly, the theoretical formula for the wind vibration coefficient based on random vibration theory is derived. Then, the APDL modeling method establishes a parametric finite element analysis model with the QTZ25 tower crane as a research object, and wind speed time history at various heights is simulated using the harmonic synthesi
APA, Harvard, Vancouver, ISO, and other styles
9

Shah, Haroun N., Ajit J. Shah, Omar Belgacem, et al. "MALDI-TOF MS and currently related proteomic technologies in reconciling bacterial systematics." In Trends in the systematics of bacteria and fungi. CABI, 2021. http://dx.doi.org/10.1079/9781789244984.0093.

Full text
Abstract:
Abstract This book chapter presents an overview and discussion of the use of MALDI-TOF MS for fungal identification. The major known limitations of the technique for fungal taxonomy, and how to overcome these, are also discussed. Moreover, this should guarantee that spectra deposited in such MALDI-TOF MS database would remain public, preferably in open free access. To avoid misidentification, these stored spectra must be curated and based on well-established standard operating procedures. The number of spectra available within species needs to be increased to accommodate the diversity and geog
APA, Harvard, Vancouver, ISO, and other styles
10

Vaishnavi, S., and V. Prabhakar. "Investigation on the Nonlinear Energy Transfer Rates for Spline Fitted Wave Spectra with Varied Peakedness." In Advances in Applied Mechanics. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0472-9_41.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Spectral variety"

1

Papapavlou, Charalampos, Konstantinos Paximadis, Braulio Gomez, Dan M. Marom, and Ioannis Tomkos. "Performance Analysis of an UWB/SDM Optical Network Node with PIC-based Flexible WaveBand-Selective Switches." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf1l.4.

Full text
Abstract:
We analyze a hierarchical optical node architecture supporting flexible band switching using WBSSs across a variety of spatial/spectral granularities from a wavelength channel to full-fiber switching, offering high-performance along with significant size/cost-savings.
APA, Harvard, Vancouver, ISO, and other styles
2

Miaoulis, Ioannis N., Haruna Tada, Seth Mann, and Peter Y. Wong. "Selective Multilayer Thin-Film Development in Insects." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1309.

Full text
Abstract:
Abstract Multilayer structures of biological thin films play numerous roles in insects, plants, lizards, and birds. Due to microscale radiative effects, small changes in the film thicknesses result in large changes in reflected sunlight and solar absorption. Through selective variations of the thin-film thicknesses and structures, nature has used multilayer structures for a variety of purposes. In butterflies, the thin films result in a colorful iridescence that is used for signaling, courting, camouflage, and display. Moreover, these thin films appear to be multifunctional; the light not refl
APA, Harvard, Vancouver, ISO, and other styles
3

Stowe, R. W. "UV as the Energy Source for Industrial Processing of Coatings, Inks, and Adhesives." In SSPC 2003. SSPC, 2003. https://doi.org/10.5006/s2003-00046.

Full text
Abstract:
Summary UV curing, the process of photoinitiated conversion of polymeric materials from a liquid to a solid, is a popular alternative to conventional drying. UV Curing is highly adaptable to a wide variety of coating applications, owing to some of its key attributes; it is (1) solventless, (2) low-temperature, (3) high speed, and (4) energy-efficient. The physical properties of UV-cured materials are substantially affected by the lamp systems used to cure them. The development of the intended properties can depend on how well these lamp factors are designed and managed. Key exposure factors ar
APA, Harvard, Vancouver, ISO, and other styles
4

Li, Cuiling, Xiu Wang, Zhijun Meng, Pengfei Fan, and Jichen Cai. "Pepper seed variety identification based on visible/near-infrared spectral technology." In SPIE/COS Photonics Asia, edited by Cunlin Zhang, Xi-Cheng Zhang, and Masahiko Tani. SPIE, 2016. http://dx.doi.org/10.1117/12.2247569.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yang, Haiqing, and Yong He. "Nondestructive Variety Discrimination of Fragrant Mushrooms Based on Vis/NIR Spectral Analysis." In 2008 Congress on Image and Signal Processing. IEEE, 2008. http://dx.doi.org/10.1109/cisp.2008.627.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Homar, M., S. Balle, and M. San Miguel. "Mode Competition in a Fabry Pérot Semiconductor laser: Travelling Wave Model with asymmetric dynamical gain." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.cwm4.

Full text
Abstract:
Fabry-Perot semiconductor lasers usually exhibit a multi-longitudinal mode behavior which is revealed in their power spectra. The relative power of the longitudinal modes varies with pump current, while the competition among them is influenced by several physical mechanisms such as spontaneous emission noise, spatial hole burning (SHB), spectral hole burning, and carrier diffusion. This competition gives rise to a variety of dynamical phenomena which most notably include mode-beating and mode-hopping.
APA, Harvard, Vancouver, ISO, and other styles
7

Simon, A., and R. Rubinovitz. "Recent Developments in High Resolution Spectroscopy Using the IFS 120 HR." In High Resolution Fourier Transform Spectroscopy. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/hrfts.1989.ma1.

Full text
Abstract:
In order to successfully produce high resolution spectra, a spectrometer must possess qualities such as precision optics, a high degree of optical stability, and sensitivity. Additionally, it is highly desirable that the instrument be versatile with respect to permitting a variety of samples to be scanned in the desired spectral regions. Otter practical considerations such as the time required to obtain the spectrum, and general ease of use should be considered in the spectrometer design. In order to meet such demanding criteria, it is clear that Fourier transform (FT) techniques would be appr
APA, Harvard, Vancouver, ISO, and other styles
8

Nuss, Martin C., K. W. Goossen, P. M. Mankiewich, et al. "Far-Infrared Spectroscopy of High Temperature Superconductors with Terahertz Electrical Pulses." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.wf1.

Full text
Abstract:
In recent years, a variety of techniques have been developed to generate and detect ultrafast electromagnetic transients with bandwidths up to 1 THz1. The spectrum of these transients spans part of the microwave, submillimeter wave and far-infrared range of the electro-magnetic spectrum. The spectroscopic benefits include the enormous spectral bandwidth covered, the coherent detection that enables to extract both real and imaginary part of the dielectric response function, and a sensitivity that far exceeds the sensitivity of conventional far-infrared spectrometers in the same spectral range.
APA, Harvard, Vancouver, ISO, and other styles
9

Wang, Xiu, Cuiling Li, Kai Jiang, Xueguan Zhao, Pengfei Fan, and Chuan Liu. "Spectral identification of melon seeds variety based on k-nearest neighbor and Fisher discriminant analysis." In Optical Spectroscopy and Imaging, edited by Tsutomu Shimura, Mengxia Xie, Bing Zhao, et al. SPIE, 2017. http://dx.doi.org/10.1117/12.2284274.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Sozzi, M., A. Kayad, D. Tomasi, L. Lovat, F. Marinello, and L. Sartori. "Assessment of grapevine yield and quality using a canopy spectral index in white grape variety." In 12th European Conference on Precision Agriculture. Wageningen Academic Publishers, 2019. http://dx.doi.org/10.3920/978-90-8686-888-9_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Spectral variety"

1

Alchanatis, Victor, Stephen W. Searcy, Moshe Meron, W. Lee, G. Y. Li, and A. Ben Porath. Prediction of Nitrogen Stress Using Reflectance Techniques. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7580664.bard.

Full text
Abstract:
Commercial agriculture has come under increasing pressure to reduce nitrogen fertilizer inputs in order to minimize potential nonpoint source pollution of ground and surface waters. This has resulted in increased interest in site specific fertilizer management. One way to solve pollution problems would be to determine crop nutrient needs in real time, using remote detection, and regulating fertilizer dispensed by an applicator. By detecting actual plant needs, only the additional nitrogen necessary to optimize production would be supplied. This research aimed to develop techniques for real tim
APA, Harvard, Vancouver, ISO, and other styles
2

Kolaj, M., S. Halchuk, and J. Adams. Sixth-generation seismic hazard model of Canada: grid values of mean hazard to be used with the 2020 National Building Code of Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331497.

Full text
Abstract:
Canada's 6th Generation seismic hazard model is the basis for the seismic design provisions in the 2020 National Building Code of Canada. The 2020 code uses mean ground motions of spectral acceleration at 0.2, 0.5, 1.0, 2.0, 5.0 and 10.0 second periods, peak acceleration and peak velocity for a variety of site conditions. Users of the 2020 code access seismic hazard values by using the 2020 National Building Code of Canada Seismic Hazard Tool which provides values for any site located in Canada. The online tool accomplishes this through the interpolation of a pre-calculated dataset. This Open
APA, Harvard, Vancouver, ISO, and other styles
3

Maloney, Megan, Sarah Becker, Andrew Griffin, Susan Lyon, and Kristofer Lasko. Automated built-up infrastructure land cover extraction using index ensembles with machine learning, automated training data, and red band texture layers. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49370.

Full text
Abstract:
Automated built-up infrastructure classification is a global need for planning. However, individual indices have weaknesses, including spectral confusion with bare ground, and computational requirements for deep learning are intensive. We present a computationally lightweight method to classify built-up infrastructure. We use an ensemble of spectral indices and a novel red-band texture layer with global thresholds determined from 12 diverse sites (two seasonally varied images per site). Multiple spectral indexes were evaluated using Sentinel-2 imagery. Our texture metric uses the red band to s
APA, Harvard, Vancouver, ISO, and other styles
4

Smith, Donald L. Observations on the Effects of 252Cf Spontaneous-Fission Neutron Spectrum Uncertainties on Uncertainties in Calculated Spectrum-Average Cross Sections for Reactions in the Neutron Dosimetry Library IRDFF-II. IAEA Nuclear Data Section, 2022. http://dx.doi.org/10.61092/iaea.wx80-dm11.

Full text
Abstract:
The Neutron Dosimetry Library IRDFF-II was released in January 2020, and was subsequently documented by an article published in the Nuclear Data Sheets by A. Trkov et al. The development of this library, under the auspices of the IAEA Nuclear Data Section, entailed extensive effort to assemble and examine the available, relevant experimental data, as well as to select and validate the best available cross-section evaluations, for some 110 neutron reaction processes included in this library. Part of the validation process for this library entailed comparing experimental and evaluated differenti
APA, Harvard, Vancouver, ISO, and other styles
5

Kelly, J. G., and D. W. Vehar. Measurement of neutron spectra in varied environments by the foil-activation method with arbitrary trials. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5327365.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

ji, yuqin, hao tian, qiang ye, zhuoyan ye, and zeyu zheng. Effectiveness of exercise intervention on improving fundamental motor skills in children with autism spectrum disorder: A systematic review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.12.0013.

Full text
Abstract:
Review question / Objective: This systematic review and meta-analysis aimed to synthesize available randomized controlled trial studies concerning the effects of exercise interventions on fundamental motor skills in children with autism spectrum disorder. Condition being studied: Autism Spectrum Disorder (ASD) is a complicated and highly prevalent neuro-developmental disorder characterized by deficits in social communication, restricted interests, and repetitive behaviors. The CDC reported that the prevalence of ASD was estimated to be 1 in 59 in the United States by 2020. Along with typical s
APA, Harvard, Vancouver, ISO, and other styles
7

Hwa, Yue-Yi, Michelle Kaffenberger, and Jason Silberstein. Aligning Levels of Instruction with Goals and the Needs of Students (ALIGNS): Varied Approaches, Common Principles. Research on Improving Systems of Education (RISE), 2020. http://dx.doi.org/10.35489/bsg-rise-ri_2020/022.

Full text
Abstract:
In this Insight Note, we present a set of principles shared by varied approaches that have all succeeded in improving foundational learning in developing countries. These approaches were not explicitly designed with this list of principles in mind; rather, the principles emerged through analysis and synthesis of successful approaches. We call such efforts ALIGNS approaches, which stands for Aligning Levels of Instruction with Goals and the Needs of Students. ALIGNS approaches take many forms, ranging from large-scale policy and curricular reforms to in-school or after-school remedial programme
APA, Harvard, Vancouver, ISO, and other styles
8

Asenath-Smith, Emily, Emma Ambrogi, Eftihia Barnes, and Jonathon Brame. CuO enhances the photocatalytic activity of Fe₂O₃ through synergistic reactive oxygen species interactions. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42131.

Full text
Abstract:
Iron oxide (α-Fe₂O₃, hematite) colloids were synthesized under hydrothermal conditions and investigated as catalysts for the photodegradation of an organic dye under broad-spectrum illumination. To enhance photocatalytic performance, Fe₂O₃ was combined with other transition-metal oxide (TMO) colloids (e.g., CuO and ZnO), which are sensitive to different regions of the solar spectrum (far visible and ultraviolet, respectively), using a ternary blending approach for compositional mixtures. For a variety of ZnO/Fe₂O₃/CuO mole ratios, the pseudo-first-order rate constant for methyl orange degradat
APA, Harvard, Vancouver, ISO, and other styles
9

Asenath-Smith, Emily, Emma Ambrogi, Lee Moores, Stephen Newman, and Jonathon Brame. Leveraging chemical actinometry and optical radiometry to reduce uncertainty in photochemical research. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42080.

Full text
Abstract:
Subtle aspects of illumination sources and their characterization methods can introduce significant uncertainty into the data gathered from light-activated experiments, limiting their reproducibility and technology transition. Degradation kinetics of methyl orange (MO) and carbamazepine (CM) under illumination with TiO₂ were used as a case study for investigating the role of incident photon flux on photocatalytic degradation rates. Valerophenone and ferrioxalate actinometry were paired with optical radiometry in three different illumination systems: xenon arc (XE), tungsten halogen (W-H), and
APA, Harvard, Vancouver, ISO, and other styles
10

Spencer, Trina, Kerstin Tönsing, and Shakila Dada. Augmentative and Alternative Communication (AAC) Interventions that Promote Labeling, Commenting, and Telling: A Systematic Review Protocol. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.4.0078.

Full text
Abstract:
Review question / Objective: The aim of this systematic review is to identify and describe the augmentative and alternative communication (AAC) interventions that improve the labeling, commenting, and telling skills of children with communication disabilities. To that end, the following questions will be addressed: What is the quality and quantity of research investigating AAC interventions to promote labeling, commenting, and telling skills of children with communication disabilities? Which (if any) AAC interventions have sufficient empirical evidence to support their recommendation in practi
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Spectral variety' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography