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Journal articles on the topic 'Calorimetry'

To see the other types of publications on this topic, follow the link: Calorimetry.

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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1

Ziebert, Carlos, Corneliu Barbu, and Tomas Jezdinsky. "Calorimetric studies and safety tests on lithion-ion cells and post-lithium cells." Open Access Government 37, no. 1 (January 9, 2023): 416–17. http://dx.doi.org/10.56367/oag-037-10412.

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Calorimetric studies and safety tests on lithion-ion cells and post-lithium cells Open Access Government interviews Dr Carlos Ziebert, of the Karlsruhe Institute of Technology (KIT), who explores the thermal and safety properties of batteries across calorimetric studies. The group batteries – calorimetry and safety – focus on calorimetric studies and safety tests on lithium-ion cells and post-lithium cells. Depending on the cell size and application, different types of calorimeters are used in Europe's largest Battery Calorimeter Laboratory, established in 2011. It provides seven Accelerating Rate Calorimeters (ARCs) from Thermal Hazard Technology allowing the evaluation of thermodynamic, thermal and safety data for Lithium-ion and post-Li cells on material, cell, and pack levels for both normal and abuse conditions (thermal, electrical, mechanical). The lab also includes glove boxes for cell assembly and disassembly, many temperature chambers, a thermal camera, and cyclers with several hundred channels. It contains extremely sensitive 3D Calvet calorimeters, providing thermodynamic parameters and gas chromatography-mass spectrometry systems from Perkin-Elmer for venting gas analysis.

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2

Bilki, B., Y. Guler, Y. Onel, J. Repond, and L. Xia. "Calorimetry with Extremely Fine Spatial Segmentation." Journal of Physics: Conference Series 2374, no. 1 (November 1, 2022): 012022. http://dx.doi.org/10.1088/1742-6596/2374/1/012022.

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Particle Flow Algorithms (PFAs) attempt to measure each particle in a hadronic jet individually, using the detector subsystem that provides the best energy/momentum resolution. Calorimeters that can exploit the power of PFAs emphasize spatial granularity over single particle energy resolution. In this context, the CALICE Collaboration developed the Digital Hadron Calorimeter (DHCAL). The DHCAL uses Resistive Plate Chambers (RPCs) as active media and is read out with 1 × 1 cm2 pads and digital (1-bit) resolution. In order to obtain a unique dataset of electromagnetic and hadronic interactions with unprecedented spatial resolution, the DHCAL went through a broad test beam program. In addition to conventional calorimetry, the DHCAL offers detailed measurements of event shapes, rigorous tests of simulation models and various analytical tools to improve calorimetric performance. Here we report on the results from the analysis of DHCAL data and comparisons with the Monte Carlo simulations.

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Ferrari, Roberto, Lorenzo Pezzotti, Massimo Caccia, Romualdo Santoro, and Massimiliano Antonello. "Dual-readout calorimetry." International Journal of Modern Physics A 34, no. 13n14 (May 20, 2019): 1940019. http://dx.doi.org/10.1142/s0217751x19400190.

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We summarize the fundamental aspects of dual-readout calorimetry, a calorimetric technique able to overcome the non-compensation problem by means of two independent scintillation and Cherenkov light signals detection. The expected ultimate energy resolution for single-hadron detection, together with the excellent particle identification capability, makes a dual-readout fiber calorimeter one of the most promising options for future leptonic colliders. In this paper, we include the main benefits of a new silicon photomultiplier-based readout system that allows to sample showers with an unprecedented spatial resolution.

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Reynard-Carette, C., G. Kohse, J. Brun, M. Carette, A. Volte, and A. Lyoussi. "Review of Nuclear Heating Measurement by Calorimetry in France and USA." EPJ Web of Conferences 170 (2018): 04019. http://dx.doi.org/10.1051/epjconf/201817004019.

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This paper gives a short review of sensors dedicated to measuring nuclear heating rate inside fission reactors in France and USA and especially inside Material Testing Reactors. These sensors correspond to heat flow calorimeters composed of a single calorimetric cell or of two calorimetric cells at least with a reference cell to obtain a differential calorimeter. The aim of this paper is to present the common running principle of these sensors and their own special characteristics through their design, calibration methods, and in-pile measurement techniques, and to describe multi-sensor probes including calorimeters.

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5

Akchurin, N., M. Alwarawrah, A. Cardini, G. Ciapetti, R. Ferrari, S. Franchino, M. Fraternali, et al. "Dual-Readout calorimetry with crystal calorimeters." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 598, no. 3 (January 2009): 710–21. http://dx.doi.org/10.1016/j.nima.2008.10.010.

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6

Morange, Nicolas. "Noble Liquid Calorimetry for FCC-ee." Instruments 6, no. 4 (September 27, 2022): 55. http://dx.doi.org/10.3390/instruments6040055.

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Noble liquid calorimeters have been successfully used in particle physics experiments for decades. The project presented in this article is that of a new noble liquid calorimeter concept, where a novel design allows us to fulfil the stringent requirements on calorimetry of the physics programme of the electron-positron Future Circular Collider at CERN. High granularity is achieved through the design of specific readout electrodes and high-density cryostat feedthroughs. Excellent performance can be reached through new very light cryostat design and low electronics noise. Preliminary promising performance is achieved in simulations, and ideas for further R&D opportunities are discussed.

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7

Antonello, Massimiliano, Massimo Caccia, Romualdo Santoro, Roberto Ferrari, Gabriella Gaudio, and Lorenzo Pezzotti. "Present status and perspective of dual-readout calorimetry for future accelerators." International Journal of Modern Physics A 35, no. 15n16 (June 6, 2020): 2041012. http://dx.doi.org/10.1142/s0217751x20410122.

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Dual-readout calorimetry is a calorimetric technique able to overcome the noncompensation limit by simultaneously detecting scintillation and Cherenkov light. Scintillating photons provide a signal related to the energy deposition in the calorimeter by all ionising particles while Cherenkov photons provide a signal almost exclusively related to the electromagnetic component in the hadronic shower. Fluctuations among the electromagnetic and non-electromagnetic component of hadronic induced showers represent the major limit to reach resolutions needed in experiments at future leptonic colliders. In a dual-readout calorimeter, by looking at the two independent signals, it is possible to measure, event by event, the electromagnetic fraction and to correctly reconstruct the primary hadron energy. Applications of the dual-readout method in fiber-sampling calorimetry have been shown to be able to provide single hadron detection with an energy resolution around [Formula: see text], electromagnetic resolution around [Formula: see text], excellent particle identification capability, resulting in one of the most promising option for future leptonic colliders. Status-of-art of the dual-readout calorimetry, as well as, perspective in the developments toward scalable solution for [Formula: see text] detectors are presented in this paper. This includes, study on the material choice, SiPM readout of the fibers, possible segmentation of the fibers to enhance particle ID capability.

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8

Bilki, Burak, Kamuran Dilsiz, Hasan Ogul, Yasar Onel, David Southwick, Emrah Tiras, James Wetzel, and David Roberts Winn. "Secondary Emission Calorimetry." Instruments 6, no. 4 (September 21, 2022): 48. http://dx.doi.org/10.3390/instruments6040048.

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Electromagnetic calorimetry in high-radiation environments, e.g., forward regions of lepton and hadron collider detectors, is quite challenging. Although total absorption crystal calorimeters have superior performance as electromagnetic calorimeters, the availability and the cost of the radiation-hard crystals are the limiting factors as radiation-tolerant implementations. Sampling calorimeters utilizing silicon sensors as the active media are also favorable in terms of performance but are challenged by high-radiation environments. In order to provide a solution for such implementations, we developed a radiation-hard, fast and cost-effective technique, secondary emission calorimetry, and tested prototype secondary emission sensors in test beams. In a secondary emission detector module, secondary emission electrons are generated from a cathode when charged hadron or electromagnetic shower particles penetrate the secondary emission sampling module placed between absorber materials. The generated secondary emission electrons are then multiplied in a similar way as the photoelectrons in photomultiplier tubes. Here, we report on the principles of secondary emission calorimetry and the results from the beam tests performed at Fermilab Test Beam Facility as well as the Monte Carlo simulations of projected, large-scale secondary emission electromagnetic calorimeters.

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9

Dunne, K., B. Meirose, D. Milstead, A. Oskarsson, V. Santoro, S. Silverstein, and S.-C. Yiu. "The HIBEAM/NNBAR Calorimeter Prototype." Journal of Physics: Conference Series 2374, no. 1 (November 1, 2022): 012014. http://dx.doi.org/10.1088/1742-6596/2374/1/012014.

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The HIBEAM/NNBAR experiment is a free-neutron search for n → sterile n and n → n ¯ oscillations planned to be installed at the European Spallation Source under construction in Lund, Sweden. A key component in the experiment is the detector to identify n – n ¯ annihilation events, which will produce on average four pions with a final state invariant mass of two nucleons, around 1.9 GeV. The beamline and experiment are shielded from magnetic fields which would suppress n → n ¯ transitions, thus no momentum measurement will be possible. Additionally, calorimetry for particles with kinetic energies below 600 MeV is challenging, as traditional sampling calorimeters used in HEP would suffer from poor shower statistics. A design study is underway to use a novel approach of a hadronic range measurement in multiple plastic scintillator layers, followed by EM calorimetery with lead glass. A prototype calorimeter system is being built, and will eventually be installed at an ESS test beam line for in situ neutron background studies.

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10

Furetta, C., S. Pensotti, P. Rancoita, L. Vismara, G. Barbiellini, and A. Seidman. "Large-area sandwich calorimeter for hadronic calorimetry." IEEE Transactions on Nuclear Science 35, no. 1 (February 1988): 446–50. http://dx.doi.org/10.1109/23.12762.

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11

Stępień, Piotr, Zbigniew Rusin, and Karol Skowera. "Cement Mortar Porosity by Modified Analysis of Differential Scanning Calorimetry Records." Materials 13, no. 5 (February 28, 2020): 1080. http://dx.doi.org/10.3390/ma13051080.

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A modified method of interpreting a heat flux differential scanning calorimetry records in pore structure determination is presented. The method consists of determining the true phase transition energy distribution due to the melting of water during a differential scanning calorimetry (DSC) heating run. A set of original apparatus functions was developed to approximate the recorded calorimetric signals to the actual processes of the water phase transition at a given temperature. The validity of the proposed calorimetric curves-based algorithm was demonstrated through tests on a cement mortar sample. The correct analysis required taking into account both the thermal inertia of the calorimeter and the thermal effects that are associated with water transitions over the fairly narrow temperature ranges close to 0 °C. When evaluating energy distribution without taking the shifts of the proposed modified algorithm into account, the volume of the pores with radii bigger than 20 nm was greatly overestimated, while that of the smaller pores (rp < 20 nm) was underestimated, in some cases by approximately 70%.

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12

Frede, Timothy Aljoscha, Moritz Greive, and Norbert Kockmann. "Measuring Kinetics in Flow Using Isoperibolic Flow Calorimetry." Reactions 3, no. 4 (October 12, 2022): 525–36. http://dx.doi.org/10.3390/reactions3040035.

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Continuous flow calorimeters are a promising tool in process development and safety engineering, particularly for flow chemistry applications. An isoperibolic flow calorimeter is presented for the characterization of exothermic reactions. The calorimeter is adapted to commercially available plate microreactors made of glass and uses Seebeck elements to quantify the heat of reaction. For automation of calibration procedures and calorimetric measurements, the device is connected to a lab automation system. Reaction enthalpy of exothermic reactions is determined via an energy balance of the entire calorimeter. Characterization of reaction kinetics is carried out via a local balancing of the individual Seebeck elements without changing the experimental setup, while using the previous measurements and additional ones at higher flow rates. The calorimeter and the associated measurement procedures were tested with the oxidation of sodium thiosulfate using hydrogen peroxide. Reaction enthalpy was determined to be 594.3 ± 0.7 kJ mol−1, which is within the range of literature values.

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13

Simkina, Polina. "Machine Learning Techniques for Calorimetry." Instruments 6, no. 4 (September 21, 2022): 47. http://dx.doi.org/10.3390/instruments6040047.

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The Compact Muon Solenoid (CMS) is one of the general purpose detectors at the CERN Large Hadron Collider (LHC), where the products of proton–proton collisions at the center of mass energy up to 13.6 TeV are reconstructed. The electromagnetic calorimeter (ECAL) is one of the crucial components of the CMS since it reconstructs the energies and positions of electrons and photons. Even though several Machine Learning (ML) algorithms have been already used for calorimetry, with the constant advancement of the field, more and more sophisticated techniques have become available, which can be beneficial for object reconstruction with calorimeters. In this paper, we present two novel ML algorithms for object reconstruction with the ECAL that are based on graph neural networks (GNNs). The new approaches show significant improvements compared to the current algorithms used in CMS.

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14

Galliez, Kévin, Guillaume Jossens, Alain Godot, and Christophe Mathonat. "Characterization of Low Level Wastes: a new design for calorimetric measurement." EPJ Web of Conferences 170 (2018): 07003. http://dx.doi.org/10.1051/epjconf/201817007003.

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Calorimetry is one of the best solutions to estimate the overall quantity of nuclear material on a wide range of masses, from a few milligrams up to kilograms of radionuclides, by measuring the overall thermal power due to the radioactive decay coming from the waste contained in a metallic drum or a different type of container. It has many advantages as it features a non-destructive method which remains independent of matrix effect or the chemical composition. Until now, calorimetry allows to measure at the lowest 0.5 to 1 mW for samples up to 385 liters. But nowadays, thanks to new technological breakthroughs, KEP-Technologies calorimeters are able to measure as low as 50 μW for 40 liters samples. The μLVC is based on a new design with twin cells, a new temperature regulation loop and a heat-flow measurement system inside a vacuum chamber (Patent deposit P005299 LA/VL). The μLVC is a differential heat-flow calorimeter for precise measurement independent of the residual fluctuations caused by environmental changes. The new calorimeter is an industrial product able to work in environmental conditions with wide temperature variations. The first results have shown a great improvement in the detection of very low thermal effect thanks to the thermal noise reduction. The paper presents the developments in Large Volume Calorimetry as a new tool for quantification of nuclear material to characterize Pu-Am samples, i-graphite, and low tritium samples with high precision and reliability.

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15

Ishii, Junichi, Taiki Nakamura, and Osamu Nakabeppu. "F132 Fast Scanning Calorimetry with MEMS Chip Calorimeter." Proceedings of the Thermal Engineering Conference 2012 (2012): 187–88. http://dx.doi.org/10.1299/jsmeted.2012.187.

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16

Korbel, V. "Liquid argon calorimetry at HERA, the H1 calorimeter." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 263, no. 1 (January 1988): 70–77. http://dx.doi.org/10.1016/0168-9002(88)91019-4.

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17

Ehrlich, S., H. Oppermann, and C. Hennig. "Calorimetrie an Ammoniumyttriumhalogeniden / Calorimetry of Ammonium Yttrium Halides." Zeitschrift für Naturforschung B 52, no. 3 (March 1, 1997): 311–14. http://dx.doi.org/10.1515/znb-1997-0302.

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Abstract The heat of solution of all solid phases in the system YX3-NH4X with X = Cl, Br, I in 4n HX was investigated. The enthalpies of formation of the ammonium yttrium halides are derived from the enthalpies of formation of Y X3 and of NH4X and their heats of solution in An HX: ΔHB0(NH4Y2Cl7,f,298) = -561,5 ± 1,7 kcal/mol, ΔHB0((NH4)3 YCl6,f,298) = -474,5 ± 1,3 kcal/mol,ΔHB0((NH4)3YBr6,f,298) = -400,8 ± 2,6 kcal/mol, ΔHB0((NH4)3YI6,f,298) = -291,9 ± 3,0 kcal/mol.

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18

Hatta, Ichiro. "AC calorimetric aspect of dynamic differential scanning calorimetry." Thermochimica Acta 272 (January 1996): 49–52. http://dx.doi.org/10.1016/0040-6031(95)02619-3.

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19

Tachoire, H., and V. Torra. "New trends in differential scanning calorimetry." Canadian Journal of Chemistry 67, no. 6 (June 1, 1989): 983–90. http://dx.doi.org/10.1139/v89-150.

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Recent applications of differential scanning calorimetry in the study of solid–solid transformations are presented. The importance of the deconvolution of the thermograms and of the modelling of the calorimetric equipment is stressed.Investigations of the phase transformations of the martensitic type in shape-memory alloys have made clear the influence of thermomechanical treatment of the material and have evaluated the influence of defects on the dynamics of transformation. A combination of calorimetric and acoustical observations has demonstrated irreversibilities, even in the so-called thermoelastic transitions. Keywords: martensitic transformation, differential scanning calorimetry, entropy production, thermomechanical treatments, acoustic emission.

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20

Cramer, Matthew N., and Ollie Jay. "Partitional calorimetry." Journal of Applied Physiology 126, no. 2 (February 1, 2019): 267–77. http://dx.doi.org/10.1152/japplphysiol.00191.2018.

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For thermal physiologists, calorimetry is an important methodological tool to assess human heat balance during heat or cold exposures. A whole body direct calorimeter remains the gold standard instrument for assessing human heat balance; however, this equipment is rarely available to most researchers. A more widely accessible substitute is partitional calorimetry, a method by which all components of the conceptual heat balance equation—metabolic heat production, conduction, radiation, convection, and evaporation—are calculated separately based on fundamental properties of energy exchange. Since partitional calorimetry requires relatively inexpensive equipment (vs. direct calorimetry) and can be used over a wider range of experimental conditions (i.e., different physical activities, laboratory or field settings, clothed or seminude), it allows investigators to address a wide range of problems such as predicting human responses to thermal stress, developing climatic exposure limits and fluid replacement guidelines, estimating clothing properties, evaluating cooling/warming interventions, and identifying potential thermoregulatory dysfunction in unique populations. In this Cores of Reproducibility in Physiology (CORP) review, we summarize the fundamental principles underlying the use of partitional calorimetry, present the various methodological and arithmetic requirements, and provide typical examples of its use. Strategies to minimize estimation error of specific heat balance components, as well as the limitations of the method, are also discussed. The goal of this CORP paper is to present a standardized methodology and thus improve the accuracy and reproducibility of research employing partitional calorimetry.

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21

Tong, Zheng Ming, Jia Lei Lu, Chao Li, and Kai Zhu. "Investigation of Calorimetric Method inside the Fermentation Process of Glutamic Acid." Advanced Materials Research 236-238 (May 2011): 938–41. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.938.

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In bioreactor, it often monitors some procedure parameters such as temperature, pH , and dissolved oxygen values to monitor fermentation process, but these parameters may be instability and delayed. Calorimetry hasn’t distinctiveness, virulence and doesn’t be sensitive to electrochemistry. So it can be used in some kind of culture fluid, even so it can be used in muddy fluid that photometers can’t be used in. Relative to other monitoring ways, calorimetry’s response time is short, so calorimetry is well suited to monitor bioprocesses on line. Calorimetry only needs normal standardize monitoring units, and this normal standardize monitoring units is be widely used in industry. Calorimetry as a simple alternative is beginning to be used in monitor bio-fermentation process.

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22

Könczöl, Franciska, and Nelli Farkas. "The tumor cured, but what about the patient?" Orvosi Hetilap 154, no. 13 (March 2013): 510–15. http://dx.doi.org/10.1556/oh.2013.29575.

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Background: Polyneuropathy is defined as a simultaneous malfunction of several peripheral nerves, which could be a toxic side effect of cancer therapy; however, this is reported to occur rarely and difficult to confirm. Aims: The purpose of the study was to introduce, at the first time, the calorimetry in the diagnosis of neuropathy in an experimental animal model. The study was inspired by the forensic investigation of a 53-year-old cancer survivor female patient, in whom the development of polyneuropathy could be caused by cyclophosphamide therapy. Methods: Adult guinea pigs were injected intraperitoneally with the dose of cyclophosphamide, comparable to the human dosage. Animals were euthanized, then nerve and muscle samples were analyzed using a SETARAM Micro calorimeter. Denaturation temperatures were measured and the calorimetric enthalpies were calculated based on the areas under thermal absorption curves. Results: Thermal denaturations of the samples were decreased and the calorimetric enthalpies were increased depending on the doses of cyclophosphamide. The nerves were more sensitive to chemotherapy as compared to the muscles. Conclusion: It is concluded that toxic effects of cyclophosphamide on peripheral nerves and muscles can be measured and analysed by calorimetry, and that the effect was dose dependent. Orv. Hetil., 2013, 154, 510–515.

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23

Medin, Joakim, Pedro Andreo, and Hugo Palmans. "Experimental determination of k _Q factors for two types of ionization chambers in scanned proton beams." Physics in Medicine & Biology 67, no. 5 (February 21, 2022): 055001. http://dx.doi.org/10.1088/1361-6560/ac4efa.

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Abstract Objective. Experimental determination of beam quality k Q factors for two types of Farmer ionization chambers, NE2571 and IBA FC65-G, in a scanned proton beam for three nominal energies (140 MeV, 180 MeV and 220 MeV) based on water calorimetry. Approach. Beam quality correction factors were determined comparing the results obtained with water calorimetry and ionometry. Water calorimetry was performed to determine the absorbed dose at a depth of measurement in water of 5 g cm−2, limited by the extension of the calorimeter glass vessel used. For the ionometry, two chambers of each type were included in the study. The ionization chambers were calibrated in terms of absorbed dose to water in 60Co at the Swedish Secondary Standard Dosimetry Laboratory, directly traceable to the BIPM, and were used according to the IAEA TRS-398 Code of Practice. Main results. The k Q values determined in the present work have been compared with the values tabulated in TRS-398 and its forthcoming update and also with those obtained in previous water calorimetric measurements and Monte Carlo calculations. All results were found to agree within the combined uncertainties of the different data. Significance. It is expected that the present work will serve as an experimental contribution to k Q -factors for the two chamber types and three scanned proton beam qualities used.

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24

Viola, V. E., and R. Bougault. "Calorimetry." European Physical Journal A 30, no. 1 (October 2006): 215–26. http://dx.doi.org/10.1140/epja/i2006-10118-5.

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25

JCE staff. "Calorimetry." Journal of Chemical Education 85, no. 8 (August 2008): 1130. http://dx.doi.org/10.1021/ed085p1130.

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26

Mastrolorenzo, L. "The CMS High Granularity Calorimeter for HL-LHC." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860075. http://dx.doi.org/10.1142/s2010194518600753.

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The High Luminosity LHC (HL-LHC) will integrate 10 times more luminosity than the LHC, posing significant challenges for radiation tolerance and event pileup on detectors, especially for forward calorimetry, and hallmarks the issue for future colliders. As part of its HL-LHC upgrade program, the CMS Collaboration is designing a High Granularity Calorimeter (HGCAL) to replace the existing endcap calorimeters. It features unprecedented transverse and longitudinal segmentation for both electromagnetic (CE-E) and hadronic (CE-H) compartments. This will facilitate particle-flow (PF) calorimetry, where the fine structure of showers can be measured and used to enhance pileup rejection and particle identification, whilst still achieving good energy resolution. The CE-E and a large fraction of CE-H will be based on hexagonal silicon sensors of [Formula: see text] cell size, with the remainder of the CE-H based on highly-segmented scintillators with SiPM readout. The intrinsic high-precision timing capabilities of the silicon sensors will add an extra dimension to event reconstruction, especially in terms of pileup rejection. An overview of the HGCAL project is presented in this paper.

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Antolik, Aneta, Michał A. Glinicki, and Marek Gawlicki. "Effect of boron-containing aggregates on setting and hardening of Portland cement mortars." MATEC Web of Conferences 163 (2018): 04003. http://dx.doi.org/10.1051/matecconf/201816304003.

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Multicomponent cement-based composites are known as versatile structural materials for enhanced radiation shielding. The use of selected elements, like boron, cadmium, or rare earth elements, provides an increased neutron shielding capacity. Because of profusion, reasonable costs and large cross-section for neutron capture, boron containing minerals are suggested as aggregates for radiation shielding concrete. Despite many advantages, boron additives may act as cement setting retarders. Uncontrolled setting and hardening is not acceptable in radiation shielding concrete technology. In this work we present results from isothermal calorimetry measurements on cement mortars with boron-containing aggregates. Four types of boron aggregates were used in the studies: colemanite, ulexite, borax and boron carbide. Based on calorimetric curves, the beginning of setting time was determined. Additionally early mortar strength was investigated and linear relationship between the heat generated in the isothermal calorimeter and the early compressive strength has been observed. The use of isothermal calorimetry allowed us to estimate the limits for the content of boron compounds to be used cement mortar.

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Santos, Monique Barreto, Bernardo de Sá Costa, and Edwin Elard Garcia Rojas. "Calorimetric techniques applied to the thermodynamic study of interactions between proteins and polysaccharides." Ciência Rural 46, no. 8 (August 2016): 1491–97. http://dx.doi.org/10.1590/0103-8478cr20151313.

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ABSTRACT: The interactions between biological macromolecules have been important for biotechnology, but further understanding is needed to maximize the utility of these interactions. Calorimetric techniques provide information regarding these interactions through the thermal energy that is produced or consumed during interactions. Notable techniques include differential scanning calorimetry, which generates a thermodynamic profile from temperature scanning, and isothermal titration calorimetry that provide the thermodynamic parameters directly related to the interaction. This review described how calorimetric techniques can be used to study interactions between proteins and polysaccharides, and provided valuable insight into the thermodynamics of their interaction.

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LIN, SHIH-CHING, CHING-HSING LUO, and TSU-FUH YEH. "IMPROVE ON PERFORMANCE OF INDIRECT CALORIMETRY FOR SMALL PRETERM INFANTS." Biomedical Engineering: Applications, Basis and Communications 13, no. 03 (June 25, 2001): 109–15. http://dx.doi.org/10.4015/s1016237201000145.

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An indirect calorimetry system of measuring oxygen consumption and carbon dioxide production has been frequently used for preterm infants. The energy consumption and metabolic measurements are based on flow-through technology. The noninvasive measurement feature of the indirect calorimeter is widely used in pediatric clinical research. However, the indirect calorimeter has several limitations for small preterm infants, particularly the ill infant weighing < 1.0 kg. In this paper, we propose some technologies and methodologies to improve the performance of the indirect calorimetry. According to these technologies and methodologies, we redesign the indirect calorimeter proposed in our pervious study. The laboratory evaluation at the different alcohol combustion rates and several exhaust flow rates is used to survey the improved performance. As the results, the accuracy and precision is enhanced by these methods and the lowest oxygen consumption rate, 4.35 ml/min, fits for baby weight of 0.66 kg. It is demonstrated that the performances of new indirect calorimetry are substantially improved. It can be applied to calculate the energy consumption and metabolic rate for low-birth-weight infants in clinical research.

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Marison, I., J. S. Liu, S. Ampuero, U. Von Stockar, and B. Schenker. "Biological reaction calorimetry: Development of high sensitivity bio-calorimeters." Thermochimica Acta 309, no. 1-2 (January 1998): 157–73. http://dx.doi.org/10.1016/s0040-6031(97)00424-3.

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31

Rojas-Aguilar, Aarón, and Alejandro Valdés-Ordoñez. "Micro-combustion calorimetry employing a Calvet heat flux calorimeter." Journal of Chemical Thermodynamics 36, no. 7 (July 2004): 619–26. http://dx.doi.org/10.1016/j.jct.2004.04.002.

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32

Fortier, Richard, Michel Allard, and Fernando Sheriff. "Field estimation of waterice phase composition of permafrost samples using a calorimetric method." Canadian Geotechnical Journal 33, no. 2 (May 8, 1996): 355–62. http://dx.doi.org/10.1139/t96-013.

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Waterice phase composition of undisturbed frozen ground samples obtained with a U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) core barrel at different depths in permafrost mounds at Kangiqsualujjuaq and Umiujaq in northern Quebec was measured in the field using an adiabatic calorimetric method. Although the theoretical basis of adiabatic calorimetry is not fully established and the required correction factors are not available, the phase composition curves of the Kangiqsualujjuaq silty clay and Umiujaq fine sand are close to the ones determined by nuclear magnetic resonance and isothermal calorimetry for two soils with similar grain size distributions (Suffield silty clay and Manchester fine sand). A better understanding of thermal and physicomechanical aspects of frozen ground could be gained from the stratigraphic profile of waterice phase composition in permafrost mounds measured with the adiabatic calorimetric method. Key words: adiabatic calorimetry, unfrozen water content, permafrost, field tests.

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33

Burova, Zinaida, Maksym Gudzenko, Leonid Vorobiov, and Andrii Makeev. "Methods and devices for researching the energy value of food products." Human and nation's health, no. 2 (December 29, 2023): 34–55. http://dx.doi.org/10.31548/humanhealth.2.2023.34.

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Rational nutrition is the main factor in ensuring optimal physical and mental health of a person. The balanced diet development requires reliable information about the nutritional and energy value of raw materials, semi-finished products, and ready-made food products and dishes. Determining the energy value of food products is carried out in several ways: chemical, taking into account the caloric content of individual components, the amount of which requires preliminary determination, calculation, and tabulation according to normative and technical averaged parameters, and experimental method of direct calorimetry. This paper shows that experimental studies of the energy value of food products can be carried out using specialized combustion calorimeters designed for measuring the calorific value of solid, liquid, and gaseous fuels. The standard procedure for determining the combustion heat of fuels has been analyzed and the expediency of using it for studies of the caloricity of other organic substances, in particular, food products, has been proven. Two main types of combustion bomb calorimeters used for laboratory research in Ukraine are considered – a liquid enthalpy calorimeter and a more modern aneroid conductive calorimeter, their design features and principle of operation are described, and advantages and disadvantages are analyzed. Approbation of the products energy value measuring technique using a liquid calorimeter is carried out on samples of sausage products developed according to an experimental recipe. The results of the research, processed according to the author's algorithm, showed the adequacy of the obtained caloricity values within 8-10% in comparison with known indicators. It should be noted that the research procedure is quite complicated, and the final results have low accuracy due to significant heat losses and energy dissipation. However, although liquid calorimeters are considered morally and physically obsolete, this device can be recommended for calorimetric studies of products and recipes in educational laboratories. Using an anhydrous conductive calorimeter does not require distilled water preparation and the maintenance of constant normal conditions in the laboratory room, automation of measurement processes and processing of results excludes possible subjective errors of the operator. The results of studies of practically pure carbohydrate-sugar showed convergence with the reference data within the device measurement error ±3%. Direct calorimetric studies on the newest metrologically certified aneroid combustion calorimeter allow us to determine the energy value of innovative food products, developed according to new recipes or with the addition of atypical ingredients, with high accuracy, which is an undeniable advantage and a necessary condition for scientific research.

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Matsumura, Y., S. Kataoka, S. Imajo, S. Yamashita, H. Akutsu, and Y. Nakazawa. "Development of light irradiation calorimetry system for molecule-based compounds." International Journal of Modern Physics B 32, no. 17 (July 9, 2018): 1840035. http://dx.doi.org/10.1142/s0217979218400350.

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Construction of a calorimetry system, by which the light irradiation to the surface area of molecular crystals at extremely low temperatures can be possible is reported. The development was performed based on the relaxation calorimetry technique to evaluate electronic structure using small amount of samples of molecular compounds where the electron correlation effects and electron–lattice coupling effects induce drastic change of the ground state. Detection of electronic structure changes occur as the light-induced phenomena becomes possible by this type of calorimetry apparatus. We report on the detailed structure of the small-sized calorimetry cells constructed for this purpose as well as the design of the calorimeter. The experimental results using organic superconductor and magnetic materials are given, which substantiate that the absolute value measurements under light irradiation are promising using the developed systems. Further possibility is also discussed.

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Dranca, Ion, and Tudor Lupascu. "Implications of Global and Local Mobility in Amorphous Excipients as Determined by DSC and TM DSC." Chemistry Journal of Moldova 4, no. 2 (December 2009): 105–15. http://dx.doi.org/10.19261/cjm.2009.04(2).02.

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The paper explores the use of differential scanning calorimetry (DSC) and temperature modulated differential scanning calorimetry (TM DSC) to study α- and β- processes in amorphous sucrose and trehalose. The real part of the complex heat capacity is evaluated at the frequencies, f, from 5 to 20mHz. β-relaxations were studied by annealing glassy samples at different temperatures and subsequently heating at different rates in a differential scanning calorimeter.

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36

Boháč, Martin, Radoslav Novotný, Jiří Másilko, Tomáš Opravil, František Šoukal, Raghvendra Singh Yadav, and Martin Palou. "Hydration of Synthetized Clinker Phases C₃S and C₃A with Metakaolin in Isothermal Conditions." Advanced Materials Research 1124 (September 2015): 23–30. http://dx.doi.org/10.4028/www.scientific.net/amr.1124.23.

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Heat flow development during initial hydration of fresh pastes based on mixtures of pure clinker phases C3S and C3A with metakaolin was investigated by means of isothermal calorimetry. Phase composition development was examined by "in situ" X-ray diffraction technique. Obtained results from calorimetric measurements and X-ray diffraction were correlated with recent studies in field of hydration of cementitious systems. The effect of co-sintering of clinker phases on early hydration was characterized by isothermal calorimetry.

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Diurba, Richard. "Energy Reconstruction and Calibration of the MicroBooNE LArTPC." Instruments 6, no. 3 (August 29, 2022): 30. http://dx.doi.org/10.3390/instruments6030030.

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MicroBooNE uses a liquid argon time projection chamber (LArTPC) for simultaneous tracking and calorimetry. Neutrino oscillation experiments plan to use LArTPCs over the next several decades. A challenge for these current and future experiments lies in characterizing detector performance and reconstruction capabilities with thorough associated systematic uncertainties. This work includes updates related to LArTPC detector physics challenges by reviewing MicroBooNE’s recent publications on calorimetry and its applications. Highlights include discussions on signal processing, calorimetric calibration, and particle identification.

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38

Spivak L. V., Kirchanov V. S., and Shchepina N. E. "Polymorphic transformations in iodine titanium." Physics of the Solid State 64, no. 11 (2022): 1784. http://dx.doi.org/10.21883/pss.2022.11.54208.400.

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Based on the analysis of differential scanning calorimetry data, the possibility of classifying the observed endothermic or exothermic transformations as phase transformations of the first oder is considered. Two approaches have been implemented. The first is based on the correspondence between the temperatures of the maximum conversion rate and the temperatures of the extrema on the second derivative of the differential scanning calorimetry signal with respect to temperature. In the second approach, the phase transformation is considered as a kind of kinetic reaction of a chemical process with the determination of some parameters included in the kinetic equations. In this case, the order parameter of such reaction n is obtained from the analysis of the differential scanning calorimetry signal shape in the region of phase transformation registration temperatures. Using the example of experiments carried out during thermal cycling of titanium iodide samples, it is shown that both the first and second approaches make it possible to fairly adequately attribute the processes that cause calorimetric effects on the dependences of differential scanning calorimetry to first-order phase transitions. In particular, the obtained results of differential scanning calorimetry during heating and cooling of iodide titanium show that polymorphic transformations in it are realized by various mechanisms depending on the rate of thermal cycling and the thermal history of the metal. Keywords: activation energy, titanium, calorimetry, polymorphism, structure, approximation.

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39

Lv, Jia Yu, Shuiai Wei, Wang Hua Chen, Gu Feng Chen, Li Ping Chen, and Ying Tao Tian. "Thermal Kinetic Analysis of Tert-butyl Peroxybenzoate under Dynamic and Adiabatic Conditions." Advanced Materials Research 550-553 (July 2012): 2782–85. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.2782.

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This study demonstrates the thermal actions of tert-butyl peroxybenzoate (TBPB) which is widely used in the plastic and rubber industries. The thermodynamic and kinetic analysis were performed on the basis of dynamic and adiabatic calorimetric applications which had been accepted as good assistants for investigating materials’ thermal decomposition. In essence, TBPB is reactive and exothermically unstable. Differential scanning calorimetry (DSC) and accelerating rate calorimeter (ARC) were employed to supply basic data and safety index. Experiments were taken under different scanning rates as well as various sample mass. The temperature and pressure curves of TBPB during decomposition were recorded. Based on the significant parameters calculated, self-accelerating decomposition temperature (SADT) of TBPB worked out was 50°C.

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Seale, James L., and William V. Rumpler. "Synchronous direct gradient layer and indirect room calorimetry." Journal of Applied Physiology 83, no. 5 (November 1, 1997): 1775. http://dx.doi.org/10.1152/jappl.1997.83.5.1775.

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Rumpler, James L., and William V. Seale. Synchronous direct gradient layer and indirect room calorimetry. J. Appl. Physiol. 83(5): 1775–1781, 1997.—A dual direct/indirect room-sized calorimeter is used at the Beltsville Human Nutrition Research Center to measure heat emission and energy expenditure in humans. Because the response times of a gradient layer direct calorimeter and an indirect calorimeter are not equivalent, the respective rate of heat emission and energy expenditure cannot be directly compared. A system of equations has been developed and tested that can correct the respective outputs of the direct gradient layer calorimeter and indirect calorimeter for delays due to the response times of the measurement systems. Performance tests using alcohol combustion to simulate a human subject indicate accurate measurements of heat production from indirect (99.9 ± 0.4%), indirect corrected for response time (99.9 ± 0.5%), direct (99.9 ± 0.8%), and direct corrected for response time (99.9 ± 0.8%) calorimetry systems. Results from 24-h measurements in 10 subjects indicate that corrected heat emission is equivalent to (99.8 ± 2.0%) corrected energy expenditure. However, heat emission measured during sleep was significantly greater (14%) than energy expenditure, suggesting a change in the energy stored as heat in the body. This difference was reversed during the day. These results illustrate how the simultaneous measurement of heat emission and energy expenditure provides insights into heat regulation.

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41

Barney, D. "Calorimetry in Particle Physics, and the CMS High-Granularity Calorimeter." Journal of Instrumentation 15, no. 07 (July 10, 2020): C07018. http://dx.doi.org/10.1088/1748-0221/15/07/c07018.

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42

Aisyah, Nur, Alex Harijanto, and Lailatul Nuraini. "RANCANG BANGUN ALAT PRAKTIKUM KALORIMETER COFFEE-CUP PENGUKUR KALOR JENIS BERBANTUAN ARDUINO UNO." JURNAL PEMBELAJARAN FISIKA 11, no. 1 (April 7, 2022): 41. http://dx.doi.org/10.19184/jpf.v11i1.28075.

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Practical activities are a series of activities carried out to apply skills or practice something that requires practical tools in its implementation. The purpose of using practical tools is to meet the needs of practitioners in carrying out a process. One of the physics concepts that can be explained through practical activities is calorimetry. Specific heat is one of the observations made during the practicum using a calorimeter. The specific heat of the material is usually measured using a coffee-cup calorimeter manually. The obstacle faced by the practitioner during the calorimetry practicum is that the measurement of the dependent variables takes up the time and attention of the practitioner in the implementation of the practicum. The objectives of this research are (1) to design an Arduino Uno-based calorimeter practicum tool; (2) explain the work system of the Arduino Uno-based calorimeter practicum tool; (3) measuring the amount of heat on the Arduino Uno-based calorimeter practicum tool; (4) comparing the effectiveness of the Arduino Uno-based calorimeter practicum tool with the coffee-cup calorimeter practicum tool. This study uses a type of research and development (Research and Development) with a Nieveen design conducted in the Laboratory of Physics Education Study FKIP Jember University. Nieveen's design research procedures include Preliminary Research, Prototyping Stage, and Assessment Stage (summative evaluation). Based on the results of data analysis, there is a very strong relationship between the data from the measurement results of the design of the tool and the data from the results of the measuring instruments that have been standardized. The results of the measurement of the specific heat of the material using the design of the tool indicate a conformity with the previous theoretical study. Key word: arduino-based, calorimeter coffee-cup, calorimetry, sensor loadcell, sensor DHT22.

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Groeger, Jeffrey S., Michele R. Levinson, Saul Miodownik, and Cole Ray. "INDIRECT CALORIMETRY." Critical Care Medicine 14, no. 4 (April 1986): 377. http://dx.doi.org/10.1097/00003246-198604000-00131.

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Headley, Jan M. "Indirect Calorimetry." AACN Clinical Issues: Advanced Practice in Acute and Critical Care 14, no. 2 (May 2003): 155–67. http://dx.doi.org/10.1097/00044067-200305000-00005.

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Maes, Christian, and Karel Netočný. "Nonequilibrium calorimetry." Journal of Statistical Mechanics: Theory and Experiment 2019, no. 11 (November 8, 2019): 114004. http://dx.doi.org/10.1088/1742-5468/ab4589.

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46

Brown, R. M., and D. J. A. Cockerill. "Electromagnetic calorimetry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 666 (February 2012): 47–79. http://dx.doi.org/10.1016/j.nima.2011.03.017.

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Akchurin, Nural, and Richard Wigmans. "Hadron Calorimetry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 666 (February 2012): 80–97. http://dx.doi.org/10.1016/j.nima.2011.10.035.

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48

Iona, Mario. "Calorimetry calculations." Physics Teacher 25, no. 7 (October 1987): 419. http://dx.doi.org/10.1119/1.2342302.

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Höhne, G. W. H., and C. Schick. "Chip calorimetry." Thermochimica Acta 603 (March 2015): 1. http://dx.doi.org/10.1016/j.tca.2015.02.003.

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Wigmans, Richard. "Sampling calorimetry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 494, no. 1-3 (November 2002): 277–87. http://dx.doi.org/10.1016/s0168-9002(02)01481-x.

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