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Journal articles on the topic 'Spectroscopic Properties of W'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Goldman, Nir, Claude Leforestier, and R. J. Saykally. "A ‘first principles’ potential energy surface for liquid water from VRT spectroscopy of water clusters." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 363, no. 1827 (2004): 493–508. http://dx.doi.org/10.1098/rsta.2004.1504.

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We present results of gas phase cluster and liquid water simulations from the recently determined VRT(ASP–W)III water dimer potential energy surface (the third fitting of the Anisotropic Site Potential with Woermer dispersion to vibration–rotation–tunnelling data). VRT(ASP–W)III is shown to not only be a model of high ‘spectroscopic’ accuracy for the water dimer, but also makes accurate predictions of vibrational ground–state properties for clusters up through the hexamer. Results of ambient liquid water simulations from VRT(ASP–W)III are compared with those from ab initio molecular dynamics,

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Tucker, Sheryl A., Heather C. Bates, Vicki L. Amszi, et al. "Spectroscopic properties of polycyclic aromatic compounds." Analytica Chimica Acta 278, no. 2 (1993): 269–74. http://dx.doi.org/10.1016/0003-2670(93)85109-w.

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3

Nykvist, Cathryn Dawn, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.822549.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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4

Vincent, Dianne Heather, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.834415.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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5

Konersman, Douglas Jay, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.835640.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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6

Feeney, Elizabeth Ann, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.836593.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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7

Prague, Jay Anthony, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.838384.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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8

Starodub, Joanne Lydia, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.839093.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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9

Rasdan, Karan, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.840618.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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10

Mayne, Maire Anne, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.843623.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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11

Sodomora, Sharyn Marie, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.852382.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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12

Strassman, Karen Mie, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.841401.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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13

Keesee, Mary M., Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.845038.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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14

Ansley, Pamela Clarkson, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.845545.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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15

Schmitz, Ronald David, Mahendra Kumar Trivedi, Gopal Nayak, Alice Branton, and Dahryn Trivedi. "A Comprehensive Physical, Spectroscopic, and Thermal Characterization of Withania somnifera (Ashwagandha) Root Extract Treated with the Energy of Consciousness (The Trivedi Effect®)." International Journal of Biomedical Materials Research 5, no. 1 (2017): 5–14. https://doi.org/10.5281/zenodo.848491.

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Withania somnifera (Ashwagandha) root extract possesses a broad range of pharmacological activities. The aim of current study was to explore the impact of The Trivedi Effect® - Energy of Consciousness Healing Treatment (Biofield Energy Healing Treatment) on the physical, spectroscopic, and thermal properties of ashwagandha root extract using PXRD, PSD, FT-IR, UV-vis spectroscopy, TGA, and DSC analysis. Ashwagandha root extract was divided into two parts. One part was denoted as the control, while the other part was defined as The Trivedi Effect® - Biofield Energy Treated sample, which received

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16

Chen, Jing Wei, Lei Zhao, Hong Wei Diao, Su Zhou, Ge Wang, and Wen Jing Wang. "Effect of Deposition Power on the Structure Properties of Microcrystalline Silicon Thin Films." Applied Mechanics and Materials 442 (October 2013): 116–19. http://dx.doi.org/10.4028/www.scientific.net/amm.442.116.

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Microcrystalline silicon thin films prepared by plasma enhanced chemical vapor deposition (PECVD). Effects of deposition power on the microstructure properties of the thin films were investigated by Raman spectrometry, Fourier transform infrared absorption spectroscopy (FTIR) and atomic force microscopy (AFM). With increasing deposition power from 100 W to 900 W, the growth rate increased from 0.75Å/s to 2.96Å/s. The Raman spectrometry measurements showed that the peak of all films is nearby at 514 nm. The FTIR spectroscopic analysis exhibit that with power increasing the intensities of both

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Kucharska, Edyta, Jacek Michalski, Wojciech Sąsiadek, Lucyna Dymińska, Paulina Hołubniak, and Jerzy Hanuza. "ZASTOSOWANIE SPEKTROSKOPII OSCYLACYJNEJ W DETEKCJI BARWNIKÓW AZOWYCH W OPAKOWANIACH DO ŻYWNOŚCI." Wiadomości Chemiczne 77, no. 7 (2023): 687–718. https://doi.org/10.53584/wiadchem.2023.07.3.

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This work is a continuation of our research on spectroscopic and structural properties and applications of a number of azo-dipyridine and phenyl-azopyridine derivatives. In the previous works, the results of DFT quantum calculations were used to discuss infrared and Raman spectra. The presented study generalizes these results using the literature data on the structure of aromatic azo compounds. Analysis of the spectra and detailed assignment of the observed bands to the specific oscillating modes enables their application to identification of azo dyes widely used in the food industry. The bioa

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Puszka, Andrzej, Marcin Kneć, Wojciech Franus, and Beata Podkościelna. "Preparation and Thermo-Mechanical Characteristics of Composites Based on Epoxy Resin with Kaolinite and Clinoptilolite." Polymers 15, no. 8 (2023): 1898. http://dx.doi.org/10.3390/polym15081898.

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Herein the synthesis, characterization, and study of spectroscopic, thermal, and thermo-mechanical properties of polymeric composites are presented. The composites were obtained in special molds (8 × 10 cm) based on the commercially available epoxy resin Epidian® 601 cross-linked by 10% w/w triethylenetetramine (TETA). To improve the thermal and mechanical properties of the synthetic epoxy resins, natural fillers in the form of minerals from the silicate cluster kaolinite (KA) or clinoptilolite (CL) were added to the composites. The structures of the materials obtained were confirmed by attenu

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Shepard, Katherine, Douglas R. Gies, Gail H. Schaefer, et al. "A Spectroscopic and Interferometric Study of W Serpentis Stars. I. Circumbinary Outflow in the Interacting Binary W Serpentis." Astrophysical Journal 977, no. 2 (2024): 236. https://doi.org/10.3847/1538-4357/ad82e7.

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Abstract W Serpentis is an eclipsing binary system and the prototype of the Serpentid class of variable stars. These are interacting binaries experiencing intense mass transfer and mass loss. However, the identities and properties of both stars in W Ser remain a mystery. Here, we present an observational analysis of high-quality, visible-band spectroscopy made with the Apache Point Observatory 3.5 m telescope and Astrophysical Research Consortium Echelle Spectrograph spectrograph plus the first near-IR, long-baseline interferometric observations obtained with the Center for High Angular Resolu

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Kocięcka, Paulina, Andrzej Kochel, and Teresa Szymańska-Buzar. "Photochemical synthesis, structure and spectroscopic properties of [W(CO)4(C5H10N)2CH2]." Inorganic Chemistry Communications 45 (July 2014): 105–7. http://dx.doi.org/10.1016/j.inoche.2014.04.023.

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Hom-On, Chatpawee, Mati Horprathum, Pitak Eiamchai, et al. "Spectroscopic Analyses of Sputtered Aluminum Oxide Films with Oxygen Plasma Treatments." Materials Science Forum 947 (March 2019): 96–100. http://dx.doi.org/10.4028/www.scientific.net/msf.947.96.

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X-ray photoelectron spectroscopy (XPS) and Spectroscopic Ellipsometry (SE) were used to analyse the effect of oxygen plasma treatment on properties of aluminum oxide thin films. The aluminum oxide films were fabricated using a reactive sputtering system. The as-deposited films were treated with oxygen plasma powered by an RF generator. During the plasma treatment, the pressures were set at 1 x 10-1 to 1x 10-2 mbar, while the RF supplied powers at 100 W and 200 W. It was observed that lower plasma powers and higher pressures resulted in smoother films. The O/Al ratio of the films were found to

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Peatt, Megan J., Noel D. Richardson, Peredur M. Williams, et al. "FORCASTing the Spectroscopic Dust Properties of the WC+O Binary WR 137 with SOFIA." Astrophysical Journal 956, no. 2 (2023): 109. http://dx.doi.org/10.3847/1538-4357/acf201.

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Abstract WR 137 (HD 192641) is a binary system consisting of a carbon-rich Wolf–Rayet (W-R) star and an Oe companion star in a 13 yr orbit. Near periastron, the winds of the two stars collide and form carbonaceous dust. We obtained three mid-infrared grism spectra of the system with SOFIA and FORCAST during the last year of SOFIA’s operations in 2021 July, 2021 February, and 2022 May (Cycle 9). Within these spectra, we have identified several wind lines from He i, He ii, C iii, and C iv that are emitted from the W-R wind as well as a weak emission feature around 6.3–6.4 μm that may have shifte

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SMITH, R., G. J. TALLENTS, S. J. PESTEHE, et al. "A spectroscopic analysis of near solid density plasmas." Laser and Particle Beams 17, no. 3 (1999): 477–85. http://dx.doi.org/10.1017/s0263034699173154.

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Targets of thin (0.1 μm) Al buried beneath 0.1 μm plastic overlay have been irradiated by the 350 fs CPA pulse from the 248 nm Titania KrF laser at irradiances of 1017 W/cm2. We report a study of the radiative properties of the Al plasma using X-ray emission spectroscopy. It is demonstrated that short-pulse irradiation of buried-layer targets can produce a plasma with close to solid densities and electron temperatures of several hundred eV. We examine the effect that a long duration (5–50 ns) low intensity (∼5 × 108 W/cm2) prepulse has on the measured values of electron density and temperature

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Pisarska, Joanna, and Wojciech Pisarski. "Replacement of glass-former B2O3 by GeO2 in amorphous host evidenced by optical methods." Photonics Letters of Poland 9, no. 4 (2017): 113. http://dx.doi.org/10.4302/plp.v9i4.790.

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Two completely different glass-host matrices containing lead, i.e. borate and germanate glasses doped with erbium were studied. Replacement of glass-former B2O3 by GeO2 in amorphous host was evidenced by optical methods. The luminescence decay from the 4I13/2 upper laser state of Er3+ ions is relatively short, whereas up-converted emission signal is reduced definitely in borate glass containing lead due to its high B-O stretching vibrations. The results indicate that germanate glasses containing lead are promising for near-infrared luminescence and up-conversion applications. Full Text: PDF Re

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Jose, Anjaly, Hitha H, Soumya Kuriakose, Mathew John, and Thomas varghese. "Influence of lanthanum doping on the structural and optical properties of cerium tungstate nanocrystals." IOP Conference Series: Materials Science and Engineering 1221, no. 1 (2022): 012038. http://dx.doi.org/10.1088/1757-899x/1221/1/012038.

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Abstract In this study, the effect of lanthanum (La) doping on the structural and optical properties of cerium tungstate nanocrystals synthesized by the chemical precipitation method is investigated. The X-ray diffraction studies confirmed the crystalline phase formation and observed no phase change with doping. It is interesting to note that the crystallite size is decreased with La doping. The characteristic vibrational peaks of W-O bonds are confirmed from the FTIR and Raman spectroscopic studies and found no appreciable changes in the spectral positions with doping. The optical properties

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Jiang, Sumeng, Fanhua Zeng, Hui Liu, Yan Duan, and Bin Deng. "Preparation and spectroscopic properties of Ca2MgTeO6:Tm3+ blue-emitting tellurate phosphors." E3S Web of Conferences 213 (2020): 01034. http://dx.doi.org/10.1051/e3sconf/202021301034.

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Various novel Ca2MgTeO6:Tm3+ blue-emitting tellurate materials were synthesized via solid-state reaction. The structure and phase purity of prepared Ca2MgTeO6:xTm3+ (x = 0.0025-0.10 mol) were examined by X-ray powder diffraction. The Ca2MgTeO6:Tm3+ phosphors emit blue emission at 359 nm excitation. The optimum doping concentration was 0.02 mol. The concentration quenching mechanism in the Ca2MgTeO6 host was due to the electric dipole-dipole interaction. The The CIE chromaticity coordinates of Ca2MgTeO6:Tm3+ phosphors located in the blue region. These results validated the Ca2MgTeO6:Tm3+ tellur

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Yan, Li, Li Quan, Zhou Wei-Jin, and Wu Jin-Guang. "Spectroscopic Properties of Potassium Saponified HEHPEHE and the Formation of w/o Microemulsions." Acta Physico-Chimica Sinica 14, no. 09 (1998): 794–98. http://dx.doi.org/10.3866/pku.whxb19980906.

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Ravi Kumar, Valluri, A. Ashirvadam, P. Naresh, et al. "Spectroscopic properties of P2O5–MgO–Na2O:Dy2O3 glasses for the applications of W-LEDs." Optical Materials 121 (November 2021): 111590. http://dx.doi.org/10.1016/j.optmat.2021.111590.

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Szulc, Michał, Günter Forster, Jose-Luis Marques-Lopez, and Jochen Schein. "Spectroscopic Characterization of a Pulsed Low-Current High-Voltage Discharge Operated at Atmospheric Pressure." Applied Sciences 12, no. 13 (2022): 6366. http://dx.doi.org/10.3390/app12136366.

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The advantages of pulsed low-current high-voltage discharges operated at atmospheric pressure and the ease with which such discharges can be implemented industrially contributed to their popularity. However, the high reactivity of a pulsed plasma implies that thorough diagnostics are needed to fully understand the interactions inside these plasmas. Some of the key parameters determining plasma properties of low-current discharges are the electron number density and the temperature of heavy particles. Both parameters can be determined experimentally with spectroscopic techniques, for example by

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Hasanova, Gunay, and Sabina Omarova. "Optical and morphological properties of Ag nanoparticles synthesized by Artemisia lerchiana W. extract." Transactions of the Institute of Molecular Biology & Biotechnologies 9, no. 1 (2025): 42–46. https://doi.org/10.62088/timbb/9.1.5.

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The development of green synthesis of nanoparticles has attracted attention due to its easy preparation, less chemical processing and eco-friendly nature. Synthesis of metal nanoparticles using plant extracts is one of the simplest, convenient, economical and eco-friendly methods that reduce the impact of toxic chemicals. Thus, in recent years, eco-friendly processes for the rapid synthesis of silver nanoparticles using aqueous extracts of plant parts such as leaves, bark, roots, etc. have been reported. Artemisia lerchiana is a widely used medicinal plant due to its bioactive compounds. This

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Pandey, Rajiv, A. K. Sharma, and Ghizal F. Ansari. "STUDY OF PHYSICAL AND LUMINESCENCE PROPERTIES ND IONS - DOPED TE-W-PB GLASSES." International Journal of Advanced Research 11, no. 10 (2023): 100–106. http://dx.doi.org/10.21474/ijar01/17682.

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New Te-W-Pb oxide base glasses codoped with neodymium oxide have been prepared by traditional melt and quench method. X-ray diffraction (XRD) is done for the confirmation of glassy structure of samples. Differential scanning calorimetry (DSC) gives the information of thermal properties of prepared glasses. Raman spectra are studied to get structural information of glasses. The spectroscopic properties of Nd3+ were examined. Infrared emission at 878, 1062, and 1339 nm were seen during stimulation at 804 nm using a diode laser.

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Shahbazi, Somayeh, Zohreh Didar, Mohsen Vazifedoost, and Sara Naji-Tabasi. "Enrichment of dark chocolate with free and microencapsulated white tea and jujube extracts: Impacts on antioxidant, physicochemical, and textural properties." Quality Assurance and Safety of Crops & Foods 14, no. 4 (2022): 188–201. http://dx.doi.org/10.15586/qas.v14i4.1099.

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In this study, dark chocolate was enriched with white tea (WT) and jujube extracts in form of free extract and microcapsules. Each form of two extracts was added to dark chocolate in concentrations of 1, 3, 5, and 7% w/w. The microcapsules were produced using pectin/casein (10% w/w), and their particle size distribution (PSD) and Fourier transform infrared spectroscopic analysis were performed. Phenolic content, antioxidant activity, pH, moisture content, color parameters and texture of enriched dark chocolates were measured. As expected, addition of extracts caused a significant increase in t

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Bhatti, Manisha, Jitender Singh, and Divya Dhawal Bhandari. "Compendium of P. Scrobiculatum: Phytochemical, Physicochemical, Antioxidant, Antiulcer, and Spectroscopic Analysis." Biomedical and Pharmacology Journal 16, no. 2 (2023): 885–97. http://dx.doi.org/10.13005/bpj/2671.

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Background: Paspalum Scrobiculatum (Kodomillet) plant is found in various regions of India and possesses several pharmacological activities such as nutritive, anti-fungal, anti-diabetic, etc. The researchers are more focused these days on exploring other potential activities of this plant and the constituents present. Methods: Present study emphasized preliminary analysis such as macroscopic study, phytochemical analysis, Physicochemical investigation, determination of ash content, (Total flavonoid content), antioxidant property and characterization of extracted components with different spect

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Pathak, T. K., J. J. U. Buch, U. N. Trivedi, H. H. Joshi, and K. B. Modi. "Infrared Spectroscopy and Elastic Properties of Nanocrystalline Mg–Mn Ferrites Prepared by Co-Precipitation Technique." Journal of Nanoscience and Nanotechnology 8, no. 8 (2008): 4181–87. http://dx.doi.org/10.1166/jnn.2008.an33.

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Nanoparticles having particle size in the range 25–40 nm for compositions x = 0.0, 0.2, 0.4 and 0.5 of MgxMn1−xFe2O4 spinel ferrite system have been prepared by chemical co-precipitation route. The microstructure, infrared spectral and elastic properties have been studied by means of energy dispersive analysis of X-rays (EDAX), transmission electron microscopy (TEM), X-ray diffraction (XRD) and infrared spectroscopic (IR) measurements, before (W) and after high temperature annealing A(W). The force constants for tetrahedral and octahedral sites determined by infrared spectral analysis, lattice

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Grobe, Joseph, Anita Krummen, Bernt Krebs, and Mechtild Läge. "Alternativ-Liganden XXVIII. Neue Komplexe M(CO)4L mit Dipodliganden des Typs R2M′(OCH2PMe2)x(CH2CH2PMe2)2-x(M = Cr, Mo, W; M′ = Si, Ge; R = Me, Ph; x = 0 - 2 ) / Alternative Ligands XXVIII. Novel Complexes M(CO)4L with Dipod Ligands of the Type R2M'(OCH2PMe2)x(CH2CH2PMe2)2-x(M = Cr, Mo, W; M' = Si, Ge; R = Me, Ph; x = 0 -2)." Zeitschrift für Naturforschung B 47, no. 3 (1992): 310–20. http://dx.doi.org/10.1515/znb-1992-0303.

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Abstract The coordinating properties of dipod ligands of the type R2M′(OCH2PMe2)x(CH2CH2PMe2)2-x(R = Me, Ph; M' = Si, Ge; x = 0 -2) have been investigated by the preparation of the novel cis-M (CO)4L complexes (M = Cr, Mo, W). They are obtained under mild conditions in cyclohexane or n-hexane solution by the reaction of the norbornadiene precursors M(CO)4NBD with the corresponding ligands. In case of the Ge containing ligands the dilution principle was used to improve the yields of the mononuclear derivatives. The rate of the NBD replacement is mainly determined by the central atom M (Mo >

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Kochetova, N. A., I. V. Alyabysheva, K. G. Belova, and I. E. Animitsa. "Thermal and spectroscopic properties of Ba2In2–x W x O5 + 3x/2 solid solutions." Inorganic Materials 51, no. 11 (2015): 1120–26. http://dx.doi.org/10.1134/s0020168515110047.

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Herranz, Juan, Emiliana Fabbri, Adam Hugh Clark, and Thomas J. Schmidt. "Operando X-Ray Spectroscopy in Electrocatalysis: How to Avoid Pitfalls to See the Catalyst in Action." ECS Meeting Abstracts MA2025-01, no. 52 (2025): 2558. https://doi.org/10.1149/ma2025-01522558mtgabs.

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Electrochemical energy conversion processes as they occur, e.g., in water electrolyzers, co-electrolyzers or fuel cells are typically studied by conventional electrochemical or ex situ spectroscopic techniques. However, in order to gain a deeper insight into the catalyst properties, operando spectroscopic and scattering methods are necessary which in many instances are only available at synchrotron light sources. By using examples from oxygen evolution and CO2-reduction studies, we will focus how synchrotron-based operando X-Ray spectroscopy can be applied to understand the respective electroc

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38

Gürses, Ahmet, and Elif Şahin. "Preparation of Melamine Formaldehyde Foam and a Melamine-Formaldehyde-Organo-Clay Nanocomposite and Hybrid Composites." Minerals 13, no. 11 (2023): 1407. http://dx.doi.org/10.3390/min13111407.

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Mineral fillers can be added to thermoset polymers to improve thermal conductivity and deformation behavior, shrinkage, impact strength, dimensional stability and molding cycle time. This study aims to prepare various hybrid composites (MFHCs) using melamine formaldehyde foam (MF), a melamine formaldehyde organo-clay nanocomposite (MFNC) and also pumice as primary filler, and gypsum, kaolinite and a hollow glass sphere as secondary filler. It also focuses on the study of some mechanical properties and thermal conductivities, as well as their microscopic and spectroscopic characterization. For

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Tien, Chuen-Lin, Chun-Yu Chiang, Ching-Chiun Wang, and Shih-Chin Lin. "Optical, Electrical, Structural, and Thermo-Mechanical Properties of Undoped and Tungsten-Doped Vanadium Dioxide Thin Films." Materials 17, no. 10 (2024): 2382. http://dx.doi.org/10.3390/ma17102382.

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The undoped and tungsten (W)-doped vanadium dioxide (VO2) thin films were prepared by electron beam evaporation associated with ion-beam-assisted deposition (IAD). The influence of different W-doped contents (3–5%) on the electrical, optical, structural, and thermo-mechanical properties of VO2 thin films was investigated experimentally. Spectral transmittance results showed that with the increase in W-doped contents, the transmittance in the visible light range (400–750 nm) decreases from 60.2% to 53.9%, and the transmittance in the infrared wavelength range (2.5 μm to 5.5 μm) drops from 55.8%

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Sadowska, Karolina, and Jacek Mariusz Żmojda. "Investigation of the luminescent properties of SiLiZn glass-ceramic phosphor doped Cr3+/Cr4+." Photonics Letters of Poland 17, no. 1 (2025): 23–25. https://doi.org/10.4302/plp.v17i1.1321.

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This study presents the development of Cr2O3 – doped glass-ceramic phosphors with the possibility of obtaining Cr³⁺/Cr⁴⁺ for broadband near – infrared (NIR) emission, targeting for potential applications in NIR phosphor – converted LEDs (pc – LEDs). Optimization of Cr₂O₃ doping and annealing conditions of glass-ceramic, we achieved emission in the range of NIR – I (700 – 950 nm) and NIR – II (1000 – 1700 nm) biological windows. Based on the luminescence measurements performed, in the glass sample, emission bands attributed to Cr³⁺ in an octahedral environment were observed with strong emission

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Castillo-Saenz, Jhonathan, Nicola Nedev, Benjamín Valdez-Salas, et al. "Properties of Al2O3 Thin Films Grown by PE-ALD at Low Temperature Using H2O and O2 Plasma Oxidants." Coatings 11, no. 10 (2021): 1266. http://dx.doi.org/10.3390/coatings11101266.

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Al2O3 layers with thicknesses in the 25–120 nm range were deposited by plasma enhanced atomic layer deposition at 70 °C. Trimethylaluminum was used as organometallic precursor, O2 and H2O as oxidant agents and Ar as a purge gas. The deposition cycle consisted of 50 ms TMA pulse/10 s purge time/6 s of plasma oxidation at 200 W/10 s purge time. The optical constants and thicknesses of the grown layers were determined by spectroscopic ellipsometry, while the roughness was measured by atomic force microscopy, giving RMS values in the 0.29–0.32 nm range for films deposited under different condition

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Xu, Kun, Yun Zheng, and Yipeng Jing. "Photometric Objects around Cosmic Webs (PAC) Delineated in a Spectroscopic Survey. I. Methods." Astrophysical Journal 925, no. 1 (2022): 31. http://dx.doi.org/10.3847/1538-4357/ac38a2.

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Abstract We provide a method for estimating the projected density distribution n ¯ 2 w p ( r p ) of photometric objects around spectroscopic objects in a spectroscopic survey. This quantity describes the distribution of photometric sources with certain physical properties (e.g., luminosity, mass, and color) around cosmic webs (PAC) traced by the spectroscopic objects. The method can make full use of current and future deep and wide photometric surveys to explore the formation of galaxies up to medium redshift (z s < 2) 3 3 Throughout the paper, we use z s for redshift, z for the z-band magn

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Long, Liu, Li-Yun Zhang, Xianming L. Han, Hong-Peng Lu, Qing-feng Pi, and Qiang Yue. "Spectroscopic and photometric studies of four W UMa-type eclipsing binaries." Monthly Notices of the Royal Astronomical Society 487, no. 4 (2019): 5520–34. http://dx.doi.org/10.1093/mnras/stz1565.

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Abstract We performed new photometric and spectroscopic studies on four W UMa-type eclipsing binaries (V400 Lyr, V574 Lyr, V1033 Her and V1062 Her). The main aims were to determine the orbital parameters and period variations of these four systems. We classified V574 Lyr, V1033 Her and V1062 Her spectral types based on LAMOST spectra, and used a spectra subtraction technique to measure the properties of the H α, H β and Ca ii H&K lines. We updated the ephemerides of these four systems, and conducted analyses of period variation for three systems (V574 Lyr, V1033 Her and V1062 Her). The per

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Chávez Ortiz, Óscar A., Steven L. Finkelstein, Dustin Davis та ін. "Introducing the Texas Euclid Survey for Lyα (TESLA) Survey: Initial Study Correlating Galaxy Properties to Lyα Emission". Astrophysical Journal 952, № 2 (2023): 110. http://dx.doi.org/10.3847/1538-4357/acc403.

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Abstract We present the Texas Euclid Survey for Lyα (TESLA), a spectroscopic survey in the 10 deg2 of the Euclid North Ecliptic Pole (NEP) field. Using TESLA, we study how the physical properties of Lyα emitters (LAEs) correlate with Lyα emission to understand the escape of Lyα emission from galaxies at redshifts of 2–3.5. We present an analysis of 43 LAEs performed in the NEP field using early data from the TESLA survey. We use Subaru Hyper Suprime-Cam imaging in the grizy bands, Spitzer/IRAC channels 1 and 2 from the Hawaii 20 deg2 (H20) survey, and spectra acquired by the Visible Integral-F

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Chisholm, Malcolm H., and Nathan J. Patmore. "Oxalate bridged heteronuclear compounds containing MM quadruple bonds (M = Mo and W) and their radical cations." Canadian Journal of Chemistry 87, no. 1 (2009): 88–94. http://dx.doi.org/10.1139/v08-093.

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The heteronuclear MM quadruply bonded oxalate bridged compound [(t-BuCO2)3MoW]2(µ-C2O4) (I) has been prepared from the reaction between MoW(O2Ct-Bu)4 and oxalic acid and characterized by elemental analysis, 1H NMR and UV-vis spectroscopy, and electrochemical studies. Single electron oxidation of I by reaction with Ag+PF6– leads to the formation of the kinetically labile radical cation I+, which has been characterized by UV-vis, NIR, and EPR spectroscopy. The latter results are compared with the properties of their related homonuclear Mo4- and W4-oxalate bridged compounds and their respective r

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Tsai, Wen-Tien, Li-An Kuo, Chi-Hung Tsai, Hsiang-Lan Huang, Ru-Yuan Yang, and Jen-Hsiung Tsai. "Production of Porous Biochar from Cow Dung Using Microwave Process." Materials 16, no. 24 (2023): 7667. http://dx.doi.org/10.3390/ma16247667.

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To valorize livestock manure, the present study investigated the production of biochar from cow dung (CD) by microwave pyrolysis. The pore properties and chemical characteristics of CD and CD-based biochar products were found to correlate with the process parameters like microwave power (300–1000 W) and residence time (5–20 min). The findings indicated that CD is an excellent biomass based on the richness of lignocellulosic constituents from the results of proximate analysis and thermogravimetric analysis (TGA). Higher calorific values were obtained at mild microwave conditions, giving the max

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Wayne Goodman, D. "Surface spectroscopic studies of model supported-metal catalysts." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 394–95. http://dx.doi.org/10.1017/s0424820100138348.

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A new surface science approach to the study of supported-metal catalysts will be described. Thin oxide films (~100 Å) of SiO2, Al2O3, or MgO supported on a refractory metal substrate (e.g., Mo or W) have been prepared by depositing the oxide metal precursor in a background of oxygen (ca. l×l0-5 Torr) [1]. The thin-film catalysts facilitate investigation by an array of surface techniques, many of which are precluded when applied to the corresponding bulk oxide [1,2]. In particular, the oxide films have been characterized by AES, ELS, HREELS, XPS, UPS, ISS, IRAS, and TD spectroscopies and shown

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Borchert, Manuela, Maria A. Kokh, Marion Louvel, et al. "Tungsten solubility and speciation in hydrothermal solutions revealed by in situ X-ray absorption spectroscopy." European Journal of Mineralogy 37, no. 1 (2025): 111–30. https://doi.org/10.5194/ejm-37-111-2025.

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Abstract. Tungsten (W) concentrations in fluids in equilibrium with crystalline tungsten oxide are used to determine thermodynamic parameters for W solubility and W species in hydrothermal fluids. The solubility data were measured in situ at high pressures and temperatures using X-ray absorption. X-ray spectroscopic data measured in situ – with X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) – were applied to characterize the symmetry and the type of atoms of the first coordination shell of W aqueous complexes present in the fluid at given temp

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Juraev, A. T., Yu Kh Karimov, A. B. Juraev, M. G. Alimukhamedov, and R. I. Adilov. "Study of regularities of polyethylene terephthalate waste glycolysis and the properties of the final product." Plasticheskie massy, no. 1 (March 13, 2025): 47–52. https://doi.org/10.35164/0554-2901-2025-01-47-52.

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Recycling of accumulated PET waste (PET-W) is considered to be a cost-effective development, becomes an important global issue and is in line with the principles of sustainable development. The physicochemical properties of recycled polyethylene terephthalate were determined, and the structure and phase composition of the polymer were evaluated. The results of these studies led to the conclusion that PET does not significantly lose properties during processing, operation in the form of bottles and storage. The exception is the molecular weight value, which decreases to 19900, apparently due to

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Jagadeesan, Sreeshna, Indira Govindaraju, and Nirmal Mazumder. "An Insight into the Ultrastructural and Physiochemical Characterization of Potato Starch: a Review." American Journal of Potato Research 97, no. 5 (2020): 464–76. http://dx.doi.org/10.1007/s12230-020-09798-w.

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Abstract Potatoes are highly consumed food around the world, usually following processing of some kind. Apart from its noteworthy presence in diets, potato starch has a multitude of industrial applications as a food additive and recently in novel domains such as nanotechnology and bioengineering. This review examines the microscopic and spectroscopic methods of characterizing potato starch and compares the different properties. The microscopic techniques such as optical microscopy and Scanning Electron Microscopy (SEM) allow observation of structural elements of potato starch. Differential Sca

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