Journal articles on the topic 'Chemistry, Physical and theoretical. Physical measurements'

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1

Kövér, László. "Studies in physical and theoretical chemistry, vol. 61, nuclear measurements in Industry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 297, no. 1-2 (1990): 319. http://dx.doi.org/10.1016/0168-9002(90)91384-n.

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2

Devaux, C., and J. P. Chapel. "Physical-chemistry of “polygomer” surfaces through AFM force measurements." Revue de Métallurgie 100, no. 5 (2003): 541–49. http://dx.doi.org/10.1051/metal:2003224.

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3

Roy, Priyatanu, Shihao Liu, and Cari S. Dutcher. "Droplet Interfacial Tensions and Phase Transitions Measured in Microfluidic Channels." Annual Review of Physical Chemistry 72, no. 1 (2021): 73–97. http://dx.doi.org/10.1146/annurev-physchem-090419-105522.

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Measurements of droplet phase and interfacial tension (IFT) are important in the fields of atmospheric aerosols and emulsion science. Bulk macroscale property measurements with similar constituents cannot capture the effect of microscopic length scales and highly curved surfaces on the transport characteristics and heterogeneous chemistry typical in these applications. Instead, microscale droplet measurements ensure properties are measured at the relevant length scale. With recent advances in microfluidics, customized multiphase fluid flows can be created in channels for the manipulation and o
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4

Katz, Yehuda. "Physical characteristics of membranes from solubility measurements of noble gases." Journal of Physical Chemistry 90, no. 1 (1986): 190–95. http://dx.doi.org/10.1021/j100273a043.

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5

Echeverria, Isabel, Ping-Chung Su, Sindee L. Simon, and Donald J. Plazek. "Physical aging of a polyetherimide: Creep and DSC measurements." Journal of Polymer Science Part B: Polymer Physics 33, no. 17 (1995): 2457–68. http://dx.doi.org/10.1002/polb.1995.090331717.

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6

Höhne, G. W. H., A. E. Bader, and St Hönle. "Physical properties of a vacuum-deposited thermopile for heat measurements." Thermochimica Acta 251 (March 1995): 307–17. http://dx.doi.org/10.1016/0040-6031(94)02005-9.

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7

Jong, Shi Ru, Jun Sheng Lee, and Tzyy Lung Yu. "Physical aging of poly(ether sulfone) from enthalpy relaxation measurements." Macromolecular Chemistry and Physics 198, no. 8 (1997): 2373–86. http://dx.doi.org/10.1002/macp.1997.021980802.

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8

Lee, Hansol D., and Alexei V. Tivanski. "Atomic Force Microscopy: An Emerging Tool in Measuring the Phase State and Surface Tension of Individual Aerosol Particles." Annual Review of Physical Chemistry 72, no. 1 (2021): 235–52. http://dx.doi.org/10.1146/annurev-physchem-090419-110133.

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Atmospheric aerosols are suspended particulate matter of varying composition, size, and mixing state. Challenges remain in understanding the impact of aerosols on the climate, atmosphere, and human health. The effect of aerosols depends on their physicochemical properties, such as their hygroscopicity, phase state, and surface tension. These properties are dynamic with respect to the highly variable relative humidity and temperature of the atmosphere. Thus, experimental approaches that permit the measurement of these dynamic properties are required. Such measurements also need to be performed
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9

Autillo, Matthieu, Laetitia Guerin, Hélène Bolvin, Philippe Moisy, and Claude Berthon. "Magnetic susceptibility of actinide(iii) cations: an experimental and theoretical study." Physical Chemistry Chemical Physics 18, no. 9 (2016): 6515–25. http://dx.doi.org/10.1039/c5cp07456h.

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Radioactive decay on magnetic susceptibility measurements by the Evans's method has been characterized on two uranium isotopes and on tritiated water. Quantum chemistry calculations have been performed to explain Pu(iii), Am(iii) and Cm(iii) magnetic susceptibilities corrected from the radioactivity effects.
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10

Novelli, A., C. Cho, H. Fuchs, et al. "Experimental and theoretical study on the impact of a nitrate group on the chemistry of alkoxy radicals." Physical Chemistry Chemical Physics 23, no. 9 (2021): 5474–95. http://dx.doi.org/10.1039/d0cp05555g.

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The chemistry of nitrated alkoxy radicals, and its impact on RO<sub>2</sub> measurements using the laser induced fluorescence (LIF) technique, is examined by a combined theoretical and experimental study.
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11

Rosen, Peter F., and Brian F. Woodfield. "Standard methods for heat capacity measurements on a Quantum Design Physical Property Measurement System." Journal of Chemical Thermodynamics 141 (February 2020): 105974. http://dx.doi.org/10.1016/j.jct.2019.105974.

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12

Buell, Alexander K., Christopher M. Dobson, and Tuomas P. J. Knowles. "The physical chemistry of the amyloid phenomenon: thermodynamics and kinetics of filamentous protein aggregation." Essays in Biochemistry 56 (August 18, 2014): 11–39. http://dx.doi.org/10.1042/bse0560011.

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In this chapter, we present an overview of the kinetics and thermodynamics of protein aggregation into amyloid fibrils. The perspective we adopt is largely experimental, but we also discuss recent developments in data analysis and we show that only a combination of well-designed experiments with appropriate theoretical modelling is able to provide detailed mechanistic insight into the complex pathways of amyloid formation. In the first part of the chapter, we describe measurements of the thermodynamic stability of the amyloid state with respect to the soluble state of proteins, as well as the
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13

Gödecke, Tilo, and Werner Köster. "Physikalische Messungen an Kupfer-Mangan-Legierungen / Physical Measurements on Copper-Manganese Alloys." International Journal of Materials Research 80, no. 11 (1989): 766–73. http://dx.doi.org/10.1515/ijmr-1989-801104.

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14

Gödecke, Tilo. "Physikalische Messungen an Kupfer-Mangan-Legierungen / Physical Measurements on Copper-Manganese Alloys." International Journal of Materials Research 81, no. 11 (1990): 826–35. http://dx.doi.org/10.1515/ijmr-1990-811108.

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15

Köstert, Werner, and Tilo Gödecke. "Physikalische Messungen an Kupfer-Mangan-Legierungen / Physical Measurements on Copper-Manganese Alloys." International Journal of Materials Research 80, no. 11 (1989): 761–65. http://dx.doi.org/10.1515/ijmr-1989-801103.

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16

Gödecke, Tilo. "Physikalische Messungen an Kupfer-Mangan-Legierungen / Physical Measurements on Copper-Manganese Alloys." International Journal of Materials Research 82, no. 3 (1991): 198–208. http://dx.doi.org/10.1515/ijmr-1991-820307.

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17

Block, Michael. "Direct mass measurements and ionization potential measurements of the actinides." Radiochimica Acta 107, no. 9-11 (2019): 821–31. http://dx.doi.org/10.1515/ract-2019-3143.

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Abstract The precise determination of atomic and nuclear properties such as masses, differential charge radii, nuclear spins, electromagnetic moments and the ionization potential of the actinides has been extended to the late actinides in recent years. In particular, laser spectroscopy and mass spectrometry have reached the region of heavy actinides that can only be produced only at accelerator facilities. The new results provide deeper insight into the impact of relativistic effects on the atomic structure and the evolution of nuclear shell effects around the deformed neutron shell closure at
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18

Gabitto, Jorge F., and Costas Tsouris. "Physical Properties of Gas Hydrates: A Review." Journal of Thermodynamics 2010 (January 12, 2010): 1–12. http://dx.doi.org/10.1155/2010/271291.

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Methane gas hydrates in sediments have been studied by several investigators as a possible future energy resource. Recent hydrate reserves have been estimated at approximately 1016 m3 of methane gas worldwide at standard temperature and pressure conditions. In situ dissociation of natural gas hydrate is necessary in order to commercially exploit the resource from the natural-gas-hydrate-bearing sediment. The presence of gas hydrates in sediments dramatically alters some of the normal physical properties of the sediment. These changes can be detected by field measurements and by down-hole logs.
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19

Kenney, John W., and Jae Joon Lee. "Photoluminescent Metal Complexes and Materials as Temperature Sensors—An Introductory Review." Chemosensors 9, no. 5 (2021): 109. http://dx.doi.org/10.3390/chemosensors9050109.

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Temperature is a fundamental physical quantity whose accurate measurement is of critical importance in virtually every area of science, engineering, and biomedicine. Temperature can be measured in many ways. In this pedagogically focused review, we briefly discuss various standard contact thermometry measurement techniques. We introduce and touch upon the necessity of non-contact thermometry, particularly for systems in extreme environments and/or in rapid motion, and how luminescence thermometry can be a solution to this need. We review the various aspects of luminescence thermometry, includi
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20

Alves, P. S., O. N. Mesquita, and M. S. Rocha. "Model for DNA Interactions with Proteins and Other Large Ligands: Extracting Physical Chemistry from Pure Mechanical Measurements." Journal of Physical Chemistry B 124, no. 6 (2020): 1020–24. http://dx.doi.org/10.1021/acs.jpcb.0c00155.

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21

Taatjes, Craig A. "Uncovering the Fundamental Chemistry of Alkyl + O2Reactions via Measurements of Product Formation." Journal of Physical Chemistry A 110, no. 13 (2006): 4299–312. http://dx.doi.org/10.1021/jp056997f.

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22

Etay, Jacqueline, Pascal Schetelat, Benoit Bardet, Janis Priede, Valdis Bojarevics, and Koulis Pericleous. "Modelling of Electromagnetic Levitation - Consequences on Non-contact Physical Properties Measurements." High Temperature Materials and Processes 27, no. 6 (2008): 439–48. http://dx.doi.org/10.1515/htmp.2008.27.6.439.

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23

Tabor, Rico F., Franz Grieser, Raymond R. Dagastine, and Derek Y. C. Chan. "The hydrophobic force: measurements and methods." Phys. Chem. Chem. Phys. 16, no. 34 (2014): 18065–75. http://dx.doi.org/10.1039/c4cp01410c.

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The hydrophobic force describes the attraction between water-hating molecules (and surfaces) that draws them together, causing aggregation, phase separation, protein folding and many other inherent physical phenomena.
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24

Licht, Stuart, Vince Cammarata, and Mark S. Wrighton. "Direct measurements of the physical diffusion of redox active species: microelectrochemical experiments and their simulation." Journal of Physical Chemistry 94, no. 15 (1990): 6133–40. http://dx.doi.org/10.1021/j100378a090.

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25

Speake, C. C., and G. T. Gillies. "Why is G the Least Precisely Known Physical Constant?" Zeitschrift für Naturforschung A 42, no. 7 (1987): 663–69. http://dx.doi.org/10.1515/zna-1987-0702.

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CODATA has recently published its readjustment of the fundamental physical constants and assigns a relative precision of 128 x 10-6 to G, the Newtonian constant of gravitation. Given that most of the other constants in physics have relative precisions of ~10-6 or better, we examine the reasons why the value for G remains so imprecise: The role of G in physics in general is considered and the most recent experimental determinations are examined. Constraints are given for perturbing effects in G measurements and a key result is that horizontal ground movements must be taken more carefully into a
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26

Syage, Jack A. "Ultrafast Measurements of Chemistry in Clusters: Excited-State Proton Transfer." Journal of Physical Chemistry 99, no. 16 (1995): 5772–86. http://dx.doi.org/10.1021/j100016a009.

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27

Sipachev, Victor A. "Diffraction Measurements and Equilibrium Parameters." Advances in Physical Chemistry 2011 (December 28, 2011): 1–14. http://dx.doi.org/10.1155/2011/864714.

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Structural studies are largely performed without taking into account vibrational effects or with incorrectly taking them into account. The paper presents a first-order perturbation theory analysis of the problem. It is shown that vibrational effects introduce errors on the order of 0.02 Å or larger (sometimes, up to 0.1-0.2 Å) into the results of diffraction measurements. Methods for calculating the mean rotational constants, mean-square vibrational amplitudes, vibrational corrections to internuclear distances, and asymmetry parameters are described. Problems related to low-frequency motions,
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28

Alkorta, Ibon, Emmanuel Gonzalez, Nadine Jagerovic, Jos� Elguero, and Robert Flammang. "Basicity of 1-nitroaryl-4,5-dihydropyrazoles: pKa �measurements and theoretical calculations." Journal of Physical Organic Chemistry 13, no. 7 (2000): 372–81. http://dx.doi.org/10.1002/1099-1395(200007)13:7<372::aid-poc261>3.0.co;2-l.

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29

Glover, Stephen A., Arvi Rauk, Jeanne M. Buccigross, et al. "The HERON reaction — Origin, theoretical background, and prevalence." Canadian Journal of Chemistry 83, no. 9 (2005): 1492–509. http://dx.doi.org/10.1139/v05-150.

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The origin of the HERON reaction is reviewed from a historical perspective and shown to have its foundation in the unusual properties of bisheteroatom-substituted amides, so-called anomeric amides. The reaction involves migration of anomerically destabilized oxo-substituents on an amide nitrogen to the amide carbon and dissociation of the amide bond. Computational work providing a theoretical basis for the reaction is presented, together with physical organic measurements that support results therefrom. The rearrangement has been observed in a number of chemical transformations of N-alkoxy-N-a
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30

Daly, Shane M., David L. Bones, and John M. C. Plane. "A study of the reactions of Al+ions with O3, N2, O2, CO2and H2O: influence on Al+chemistry in planetary ionospheres." Physical Chemistry Chemical Physics 21, no. 26 (2019): 14080–89. http://dx.doi.org/10.1039/c8cp07572g.

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31

Garbade, Kurt, and Werner Freyland. "PVT-Measurements of Fluid KxKCl1−xSolutions*." Zeitschrift für Physikalische Chemie 156, Part_1 (1988): 169–75. http://dx.doi.org/10.1524/zpch.1988.156.part_1.169.

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32

Stanfield, Joseph, Uli Osterwalder, and Bernd Herzog. "In vitro measurements of sunscreen protection." Photochemical & Photobiological Sciences 9, no. 4 (2010): 489. http://dx.doi.org/10.1039/b9pp00181f.

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33

Baasandorj, Munkhbayar, Paul Marshall, Robert L. Waterland, A. R. Ravishankara, and James B. Burkholder. "Rate Coefficient Measurements and Theoretical Analysis of the OH + (E)-CF3CH═CHCF3 Reaction." Journal of Physical Chemistry A 122, no. 19 (2018): 4635–46. http://dx.doi.org/10.1021/acs.jpca.8b02771.

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34

Talaga, David S. "Information-Theoretical Analysis of Time-Correlated Single-Photon Counting Measurements of Single Molecules." Journal of Physical Chemistry A 113, no. 17 (2009): 5251–63. http://dx.doi.org/10.1021/jp8082908.

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35

Mecea, V. M. "Fundamentals of mass measurements." Journal of Thermal Analysis and Calorimetry 86, no. 1 (2006): 9–16. http://dx.doi.org/10.1007/s10973-006-7570-x.

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36

Shibata, Hiromichi. "Measurement of Physical Characteristics of Particle Beds for Drying." Drying Technology 25, no. 1 (2007): 161–70. http://dx.doi.org/10.1080/07373930601161039.

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37

Crilley, Leigh R., Louisa Kramer, Francis D. Pope, et al. "On the interpretation of in situ HONO observations via photochemical steady state." Faraday Discussions 189 (2016): 191–212. http://dx.doi.org/10.1039/c5fd00224a.

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A substantial body of recent literature has shown that boundary layer HONO levels are higher than can be explained by simple, established gas-phase chemistry, to an extent that implies that additional HONO sources represent a major, or the dominant, precursor to OH radicals in such environments. This conclusion may be reached by analysis of point observations of (for example) OH, NO and HONO, alongside photochemical parameters; however both NO and HONO have non-negligible atmospheric lifetimes, so these approaches may be problematic if substantial spatial heterogeneity exists. We report a new
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38

Huizer, Erik, Hans Melissant, and Arie van den Beukel. "Resistivity Measurements During Structural Relaxation of Fe40Ni40B20*." Zeitschrift für Physikalische Chemie 157, Part_1 (1988): 335–39. http://dx.doi.org/10.1524/zpch.1988.157.part_1.335.

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39

van der Zant, Herre S. J., Yann-Vai Kervennic, Menno Poot, et al. "Molecular three-terminal devices: fabrication and measurements." Faraday Discuss. 131 (2006): 347–56. http://dx.doi.org/10.1039/b506240n.

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40

Kukolich, Stephen G., Michael C. McCarthy, and Patrick Thaddeus. "Molecular Structure ofo-Benzyne from Microwave Measurements." Journal of Physical Chemistry A 108, no. 14 (2004): 2645–51. http://dx.doi.org/10.1021/jp031344p.

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41

Rusin, A. D. "A gas thermometer for vapor pressure measurements." Russian Journal of Physical Chemistry A 82, no. 8 (2008): 1421–26. http://dx.doi.org/10.1134/s0036024408080347.

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42

Böttner, M., D. Ceh, U. Jacobs, and R. Winter. "High Pressure Volumetric Measurements on Phospholipid Bilayers." Zeitschrift für Physikalische Chemie 184, Part_1_2 (1994): 205–18. http://dx.doi.org/10.1524/zpch.1994.184.part_1_2.205.

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43

Safarov, Javid T. "Vapor Pressure Measurements of LiI + C2H5OH Solutions." Zeitschrift für Physikalische Chemie 219, no. 8 (2005): 1133–44. http://dx.doi.org/10.1524/zpch.2005.219.8.1133.

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44

Christen, Wolfgang, Tim Krause, Björn Kobin, and Klaus Rademann. "Precision Velocity Measurements of Pulsed Supersonic Jets." Journal of Physical Chemistry A 115, no. 25 (2011): 6997–7004. http://dx.doi.org/10.1021/jp112222g.

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45

Tada, Tomofumi, Masakazu Kondo, and Kazunari Yoshizawa. "Theoretical Measurements of Conductance in an (AT)12 DNA Molecule." ChemPhysChem 4, no. 11 (2003): 1256–60. http://dx.doi.org/10.1002/cphc.200300811.

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46

Simon, Sindee L., Donald J. Plazek, J. William Sobieski, and Eric T. McGregor. "Physical aging of a polyetherimide: Volume recovery and its comparison to creep and enthalpy measurements." Journal of Polymer Science Part B: Polymer Physics 35, no. 6 (1997): 929–36. http://dx.doi.org/10.1002/(sici)1099-0488(19970430)35:6<929::aid-polb7>3.0.co;2-c.

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47

Penkett, S. A., B. J. Bandy, C. E. Reeves, D. McKenna, and P. Hignett. "Measurements of peroxides in the atmosphere and their relevance to the understanding of global tropospheric chemistry." Faraday Discussions 100 (1995): 155. http://dx.doi.org/10.1039/fd9950000155.

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48

Elbinawi, Alaa, Mogahed Al-abyad, Ibrahim Bashter, Usama Seddik, and Ferenc Ditrói. "Study of proton induced nuclear reactions on molybdenum: cross section measurements and theoretical calculations." Radiochimica Acta 108, no. 1 (2019): 1–9. http://dx.doi.org/10.1515/ract-2018-3091.

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Abstract Excitation functions were measured by the activation method using the stacked-foil technique for the natMo(p,x)93(m+g),94m,g,95m,g,96(m+g),99mTc, 92m,95Nb reactions up to 18 MeV. The experimental results were compared with literature data and theoretical results from EMPIRE-3.2.2 code and TENDL. Special attention was paid to the 100Mo(p,2n)99mTc reaction which is very promising for the production of 99mTc at a cyclotron. In order to optimize the production conditions of some medically important Tc isotopes, the integral yields were estimated based on the measured cross sections.
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49

Yang, Bin, Xi-Ling Xu, Hong-Guang Xu, Umar Farooq, and Wei-Jun Zheng. "Structural evolution and electronic properties of CoSin− (n = 3–12) clusters: mass-selected anion photoelectron spectroscopy and quantum chemistry calculations." Physical Chemistry Chemical Physics 21, no. 11 (2019): 6207–15. http://dx.doi.org/10.1039/c8cp07734g.

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Experimental measurements and theoretical calculations show that CoSi<sub>10</sub><sup>−</sup> has the highest vertical detachment energy among all the CoSi<sub>n</sub><sup>−</sup> (n = 3–12) clusters, implying CoSi<sub>10</sub><sup>−</sup> has special stability.
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50

Goeders, James E., Craig R. Clark, Grahame Vittorini, Kenneth Wright, C. Ricardo Viteri, and Kenneth R. Brown. "Identifying Single Molecular Ions by Resolved Sideband Measurements." Journal of Physical Chemistry A 117, no. 39 (2013): 9725–31. http://dx.doi.org/10.1021/jp312368a.

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