Relevant bibliographies by topics / Bond enthalpy

Contents

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

Academic literature on the topic 'Bond enthalpy'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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

Select a source type:

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

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

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

Journal articles on the topic "Bond enthalpy"

1

Tsioptsias, Costas. "Thermodynamic and Vibrational Aspects of Peptide Bond Hydrolysis and Their Potential Relationship to the Harmfulness of Infrared Radiation." Molecules 28, no. 23 (2023): 7902. http://dx.doi.org/10.3390/molecules28237902.

Full text
Abstract:
The primary physicochemical effect upon exposure to infrared radiation (IR) is the temperature increase of cells. The degradation of proteins via the hydrolysis of peptide bonds is related to cell malfunction. In this work, the degradation of proteins/peptides under the influence of IR radiation is theoretically studied. It is shown that the low value of enthalpy of peptide bond hydrolysis has two consequences: (a) the enthalpy of hydrolysis is sensitive to small variations in the bond strength, and the hydrolysis of weak peptide bonds is exothermic, while the hydrolysis of stronger bonds is e
APA, Harvard, Vancouver, ISO, and other styles
2

Garipelli, Nagaraju, RB Sunoj, Madhava Reddy B, Jithan AV, and Chinnalaliah Runja. "Quantification of Intramolecular Hydrogen Bond in Neurotransmitter Dopamine." International Journal of Pharmaceutical Sciences and Nanotechnology 2, no. 3 (2009): 671–74. http://dx.doi.org/10.37285/ijpsn.2009.2.3.12.

Full text
Abstract:
Dopamine is a catecholamine chemically, 3, 4-dihydroxyphenyethylamine. It has intramolecular H-bond (IHB) between the two hydroxyl groups. The energy of intramolecular H-bond might contribute energy in binding of the neurotransmitter with the receptors. Here the IHB in Dopamine is calculated in different levels of theories. The energetics of intramolecular hydrogen bonds is of fundamental importance in biochemistry. In contrast with intermolecular H-bonds, whose enthalpy can be determined by a supermolecular approach, there is no general accepted procedure to determine the enthalpy of an intra
APA, Harvard, Vancouver, ISO, and other styles
3

Bartmess, John E., and Robert J. Hinde. "The gas-phase acidities of the elemental hydrides are functions of electronegativity and bond length." Canadian Journal of Chemistry 83, no. 11 (2005): 2005–12. http://dx.doi.org/10.1139/v05-218.

Full text
Abstract:
The gas-phase Brønsted acidities of the group 1, group 2, and main group elemental hydrides (XHn) are shown to be a combined function of the bond length, electronegativity, and position in the periodic table, via a separation of the acidity into coulombic and electronic reorganization enthalpy parts. The Coulombic acidity is defined as the enthalpy to separate unit positive and negative charges from the neutral acid's X—H bond length to infinity; the reorganization enthalpy is the difference between that and the measured acidity, and represents the enthalpy required to reorganize the electrons
APA, Harvard, Vancouver, ISO, and other styles
4

Papina, T. S., V. P. Kolesov, V. A. Lukyanova, O. V. Boltalina, A. Yu Lukonin, and L. N. Sidorov. "Enthalpy of Formation and C−F Bond Enthalpy of Fluorofullerene C60F36." Journal of Physical Chemistry B 104, no. 23 (2000): 5403–5. http://dx.doi.org/10.1021/jp000409a.

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

Vdovenko, Sergei, Igor Gerus, Elena Fedorenko та Valery Kukhar. "C–H⋯F Hydrogen Bond and Integral Intensities of Vinyl C–H Vibtations in Push-Pull β-Dimethylaminotrifluoromethyl Ketone and Its Deuterated Analog". ISRN Spectroscopy 2013 (17 січня 2013): 1–13. http://dx.doi.org/10.1155/2013/640896.

Full text
Abstract:
The accurate analysis of infrared spectra (both wavenumbers and intensities) of (E)-4-(dimethylamino)-1,1,1-trifluorobut-3-en-2-one (DMTBN) and (E)-4-(hexadeutero-dimethylamino)-1,1,1-trifluorobut-3-en-2-one (d6-DMTBN) revealed that besides intramolecular hydrogen bond in the (EE) conformer, these enaminoketones form cyclic dimers between the (EZ) and (EE) conformers due to intermolecular hydrogen bonds, namely, O=C and . Evaluation of constant and enthalpy of formation of these H-bonds revealed that O=C bond has greater and more negative than bond (cf. 214.4 M−1, −21.7 kJ M−1dm3, and 16.4 M−1
APA, Harvard, Vancouver, ISO, and other styles
6

Sabbah, Raphaël, and Meriem Gouali. "Energétique des liaisons inter et intramoléculaires dans les trois isomères de l'aminophénol." Canadian Journal of Chemistry 74, no. 4 (1996): 500–507. http://dx.doi.org/10.1139/v96-054.

Full text
Abstract:
The prsesent work is concerned with a thermodynamic study of the three aminophenol isomers (general formula: C6H7NO). It was achieved using four techniques: combustion calorimetry of small amounts of substance (a few milligrams), sublimation calorimetry, differential thermal analysis, and heat capacity measurements. From this study, it was possible: to determine the enthalpies of combustion, sublimation, and fusion of these compounds; to discuss the relative stability of the three molecules; to determine the intermolecular enthalpy bonds; to determine the experimental resonance energies and to
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, Kaiming, Dong Du, Baohua Chang, et al. "Mechanical Properties, Electronic Structures, and Debye Temperature of NixBy Compounds Obtained by the First Principles Calculations." Crystals 8, no. 12 (2018): 451. http://dx.doi.org/10.3390/cryst8120451.

Full text
Abstract:
Mechanical properties, electronic properties, and Debye temperatures of NixBy (Ni3B, Ni2B, Ni4B3 and NiB) compounds were obtained by the first principles calculations based on the density functional theory (DFT). The results showed that the formation enthalpy of the NixBy compounds were stable with negative formation enthalpy. NiB had the largest B, G, and E, and the smallest υ; it also had the highest hardness (10.8 GPa) and Debye temperature (681.8 K). Ni4B3 had the strongest anisotropy. It was found that the valence bonds of the NixBy compounds studied were composed of both metal bond and c
APA, Harvard, Vancouver, ISO, and other styles
8

Pimenova, Svetlana M., Svetlana V. Melkhanova, Victor P. Kolesov, and Anatolii S. Lobach. "The Enthalpy of Formation and C−H Bond Enthalpy of Hydrofullerene C60H36." Journal of Physical Chemistry B 106, no. 9 (2002): 2127–30. http://dx.doi.org/10.1021/jp012258x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Robson, Fernandes de Farias. "An unusual approach to the bond enthalpy in hydrogen molecule: the contribution of relativistic effects." Chemistry Research Journal 1, no. 5 (2016): 9–10. https://doi.org/10.5281/zenodo.13969996.

Full text
Abstract:
In the present work, the H-H bond enthalpy in hydrogen molecule explained/calculated by using the Bohr atom approach, as well as Slater rules and taking into account relativistic effects. It is shown that in the hydrogen molecule, the electron moves at 0.7155 c, with a relativistic mass of 13.04 x 10<sup>-31 </sup>kg and that the most part of the H-H bond enthalpy are related with the change in potential energy in individual H atoms.
APA, Harvard, Vancouver, ISO, and other styles
10

Mahmood, Asif, Muhammad Saqib, Muhammad Ali, Muhammad Imran Abdullah, and Bilal Khalid. "Theoretical investigation for the designing of novel antioxidants." Canadian Journal of Chemistry 91, no. 2 (2013): 126–30. http://dx.doi.org/10.1139/cjc-2012-0356.

Full text
Abstract:
In this study, the antioxidant potential of salicylic acid and its derivatives was determined. O–H bond dissociation enthalpy ionization potential and spin densities were computed, which are important characteristics of antioxidants. We have designed new antioxidants on the basis of information obtained from the results of this study and a literature review. O–H bond dissociation enthalpy, ionization potential, and spin densities of designed compounds were also calculated to analyze the effect of the size of the heterocyclic ring, the electronegativity of the heteroatom, the number of hydroxyl
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Bond enthalpy"

1

Lee, Matthew Colin John. "Correlations between MO Eigenvectors and the Thermochemistry of Simple Organic Molecules, Related to Empirical Bond Additivity Schemes." The University of Waikato, 2008. http://hdl.handle.net/10289/2623.

Full text
Abstract:
A bondingness term is further developed to aid in heat of formation (ΔfHº) calculations for C, N, O and S containing molecules. Bondingness originated from qualitative investigations into the antibonding effect in the occupied MOs of ethane. Previous work used a single parameter for bondingness to calculate ΔfHº in an alkane homologous series using an additivity scheme. This work modifies the bondingness algorithm and uses the term to parameterise a test group of 345 molecules consisting of 17 subgroups that include alkanes, alkenes, alkynes, alcohols, ethers, aldehydes, ketones, carboxylic ac
APA, Harvard, Vancouver, ISO, and other styles
2

Lescic, Sergiu. "Etude théorique du mécanisme de décomposition d'adduits de spin issus du piégeage de radicaux alkylperoxyle par des N-oxy-pyrrolines." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4752.

Full text
Abstract:
A l'aide de la spectroscopie par Résonance Paramagnétique Électronique (RPE), la détection des certaines espèces radicalaires à très faible durée de vie se fait par la méthode du spin-trapping. Cette technique permet de caractériser ces radicaux “libres” en les piégeant à l'aide d'une molécule diamagnétique (nitrone) pour donner naissance à une espèce paramagnétique persistante (adduit de spin), ayant un spectre RPE caractéristique du radical piégé. Le temps de demi-vie d'un adduit du spin est fortement corrélé à la nature de la nitrone et du radical piégé (alkyle, alc
APA, Harvard, Vancouver, ISO, and other styles
3

Lescic, Sergiu. "Etude théorique du mécanisme de décomposition d'adduits de spin issus du piégeage de radicaux alkylperoxyle par des N-oxy-pyrrolines." Electronic Thesis or Diss., Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4752.

Full text
Abstract:
A l'aide de la spectroscopie par Résonance Paramagnétique Électronique (RPE), la détection des certaines espèces radicalaires à très faible durée de vie se fait par la méthode du spin-trapping. Cette technique permet de caractériser ces radicaux “libres” en les piégeant à l'aide d'une molécule diamagnétique (nitrone) pour donner naissance à une espèce paramagnétique persistante (adduit de spin), ayant un spectre RPE caractéristique du radical piégé. Le temps de demi-vie d'un adduit du spin est fortement corrélé à la nature de la nitrone et du radical piégé (alkyle, alc
APA, Harvard, Vancouver, ISO, and other styles
4

Kolmann, Stephen. "Accurate studies of weakly bound systems." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12895.

Full text
Abstract:
This thesis investigates the “grand challenge” problem of hydrogen storage. We use H2 binding to Li+-doped benzene as a model for Li-doped metal-organic framework (MOF) and Li-doped carbon-based hydrogen storage materials. The lithium dopant acts to increase the H2 binding enthalpy, with the hope that these materials may be appropriate for room temperature hydrogen storage. Improvements to the iterative procedure used to Grow modified Shepard interpolated PESs are developed in the context of the SSSH radical, a “floppy” system where the ground state structure has not previously been character
APA, Harvard, Vancouver, ISO, and other styles
5

Halvachizadeh, Jaleh. "The Investigation of Reactions of Atomic Metal Anions with Small Hydrocarbons and Alcohols in the Gas Phase." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30646.

Full text
Abstract:
Hydrocarbons are an abundant resource of carbon and hydrogen. For example, fossil can be used to produce useful organic compounds. However hydrocarbons seem to be inert. Thus, the activation of the C-H bond is a popular research area. Metals play the main role in most catalysts that convert hydrocarbons to starting materials in industry. The study of metals is important because the properties of the metal core greatly influences the reactivity of a catalyst.1 The study of the chemistry of metals in the gas phase provides valuable information about the properties of metals. This information ca
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Yi. "Aqueous Desolvation and Molecular Recognition: Experimental and Computational Studies of a Novel Host-Guest System Based on Cucurbit[7]uril." Diss., 2012. http://hdl.handle.net/10161/6160.

Full text
Abstract:
<p>Molecular recognition is arguably the most elementary physical process essential for life that arises at the molecular scale. Molecular recognition drives events across virtually all length scales, from the folding of proteins and binding of ligands, to the organization of membranes and the function of muscles. Understanding such events at the molecular level is massively complicated by the unique medium in which life occurs: water. In contrast to recognition in non-aqueous solvents, which are driven largely by attractive interactions between binding partners, binding reactions in water ar
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Bond enthalpy"

1

Sherwood, Dennis, and Paul Dalby. Enthalpy and thermochemistry. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198782957.003.0006.

Full text
Abstract:
Definition and mathematics of enthalpy. Definition of heat capacity at constant pressure as CP = (∂H/∂T)V. Endothermic and exothermic reactions. Role of the change in enthalpy as regards the direction and spontaneity of a change in state. Enthalpy changes and phase changes. Measuring enthalpy changes by calorimetry. Hess’s law of constant heat formation. Chemical standards and standard states. Standard enthalpies of formation, ionic enthalpies and bond energies. How the change in enthalpy varies with temperature. Kirchhoff’s equations. Applications of thermochemistry to a variety of worked exa
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Bond enthalpy"

1

Connor, J. A. "Bond Enthalpy Transferability - is it Achievable?" In Energetics of Organometallic Species. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2466-9_12.

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

McMahon, Patrick E., Rosemary F. McMahon, and Bohdan B. Khomtchouk. "Concepts of Potential Energy, Enthalpy, and Bond Energy Calculations." In Survival Guide to General Chemistry. CRC Press, 2019. http://dx.doi.org/10.1201/9780429445828-18.

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

Atkins, Peter, Julio de Paula, and David Smith. "Chemical change." In Elements of Physical Chemistry. Oxford University Press, 2016. http://dx.doi.org/10.1093/hesc/9780198727873.003.0011.

Full text
Abstract:
This chapter explores thermochemistry, one of the principal applications of thermodynamics to chemistry. It begins by looking at how the strengths of bond are expressed in terms of the bond dissociation enthalpy and their mean values over a series of related compounds. The chapter then considers the standard enthalpy of combustion, which is the change in standard enthalpy per mole of combustible substance. Meanwhile, the reaction enthalpy is the change in enthalpy that accompanies a chemical reaction. The standard reaction enthalpy (the ‘standard enthalpy of reaction’) is the value of the reac
APA, Harvard, Vancouver, ISO, and other styles
4

Oriakhi, Christopher O. "Thermochemistry." In Chemistry in Quantitative Language. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198867784.003.0020.

Full text
Abstract:
Thermochemistry explores the basic principles of energy changes in chemical reactions. Calorimetry is described as a tool to measure the quantity of heat involved in a chemical or physical change. Quantitative overviews of enthalpy and the stoichiometry of thermochemical equations are provided, including the concepts of endothermic and exothermic reactions. Standard conditions are defined to allow comparison of enthalpies of reactions and determine how the enthalpy change for any reaction can be obtained. Hess"s Law, which allows the enthalpy change of any reaction to be calculated, is discuss
APA, Harvard, Vancouver, ISO, and other styles
5

Clugston, Michael, Malcolm Stewart, and Fabrice Birembaut. "Thermochemistry." In Making the Transition to University Chemistry. Oxford University Press, 2021. http://dx.doi.org/10.1093/hesc/9780198757153.003.0005.

Full text
Abstract:
This chapter focuses on thermochemistry. It starts with enthalpy change which is the heat added to a system at constant pressure. The reaction is considered endothermic if heat is taken, while it would be exothermic if heat is given out. As the chapter shows, a calorimeter can be used to measure enthalpy changes. According to Hess's law, the standard enthalpy change for a reaction is independent of the route taken from reactants to products. Atomization enthalpy, on the other hand, is the standard enthalpy change accompanying the formation of a gaseous atom from either a solid or a gas contain
APA, Harvard, Vancouver, ISO, and other styles
6

Martinho Simões, José A., and Manuel Minas da Piedade. "Bond Energies." In Molecular Energetics. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195133196.003.0008.

Full text
Abstract:
Although standard enthalpies of formation provide information about the net stability of molecules and their transformations, they do not always indicate stability of individual bonds. This analysis normally involves parameters, loosely called “bond energies,” that reflect the amount of energy required to cleave chemical bonds. Bond energies are essential for understanding the nature of chemical bonds. They can be used to assess the results from quantum chemistry calculations (or from other, less sophisticated theoretical models) and thus support or oppose the descriptions of those bonds. More
APA, Harvard, Vancouver, ISO, and other styles
7

Elliott, Mark C. "Calculating Enthalpy of Reaction from Bond Dissociation Energies." In How to Succeed in Organic Chemistry. Oxford University Press, 2020. http://dx.doi.org/10.1093/hesc/9780198851295.003.0028.

Full text
Abstract:
Introduction If we know how strong each chemical bond in a molecule is, we can calculate the enthalpy change for a reaction. Here is a table of average bond dissociation energies, all in kJ mol<sup>−1</sup>. These are representative values for the...
APA, Harvard, Vancouver, ISO, and other styles
8

Martinho Simões, José A., and Manuel Minas da Piedade. "Electrochemical Measurements." In Molecular Energetics. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195133196.003.0020.

Full text
Abstract:
Electrochemical measurements have been playing an increasingly important role in the thermodynamic study of reactions in solution, not only because they provide data that are difficult (or even impossible) to obtain by other methods but also because these data can often be compared with the values determined for the analogous gas-phase reactions, thus yielding information on solvation energetics. Figure 16.1 was adapted from a scheme proposed by Griller et al. It summarizes the thermochemical information on the R–X bond that can be probed by electrochemical methods. The vertical arrows represe
APA, Harvard, Vancouver, ISO, and other styles
9

Lawrence, Nathan, Jay Wadhawan, and Richard Compton. "Chemical energetics." In Foundations of Physical Chemistry: Worked Examples. Oxford University Press, 1999. http://dx.doi.org/10.1093/hesc/9780198504627.003.0003.

Full text
Abstract:
This chapter includes problems and answers that illustrate Hess's law, enthalpies of formation, bond enthalpies, lattice energies, and the stability of solids. It discusses enthalpy and entropy changes that accompany reactions, and reviews the prediction of direction of chemical change via free energy changes. It also introduces the temperature variation of enthalpy changes and heat changes at constant pressure as compared to constant volume. The chapter highlights the second law of thermodynamics and the prediction of the direction of chemical changes, including the Ellingham diagrams and the
APA, Harvard, Vancouver, ISO, and other styles
10

Atkins, Peter, George Ratcliffe, Mark Wormald, and Julio de Paula. "Fundamental processes." In Physical Chemistry for the Life Sciences. Oxford University Press, 2023. http://dx.doi.org/10.1093/hesc/9780198830108.003.0005.

Full text
Abstract:
This chapter covers a widely used approach in thermodynamics — breaking down the process of interest into a series of simpler steps. The enthalpy change associated with the overall process is then equal to the sum of the changes for the individual steps. Commonly occurring steps include phase transitions, ionization and electron gain, and bond dissociation and formation. Phase transitions include freezing, melting, vaporizing, and their analogues in membranes. Ionization is the process of losing one or more electrons and electron gain is the opposite. Bond dissociation and bond formation are f
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Bond enthalpy"

1

Teeka, Wikoramet, Khemthat Srisujaritpanich, Pattara Somnuake, and Sirirat Wacharawichanant. "Development of Biodegradable Poly(Lactic Acid)/Lignin Treated Alkyl Ketene Dimer Properties for Packaging Applications." In The Silpakorn International Conference on Total Art and Science (2nd SICTAS 2023) jointly with the International Conference on Engineering and Industrial Technology 2023 (3rd ICEIT 2023). Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-8xjsrk.

Full text
Abstract:
In this work, PLA/lignin treated AKD composites have been developed for packaging applications. The composites were prepared by a thermal processing. The lignin was prepared from the black liquor which is the waste of paper industry by extracting acetic acid and filtering. The resulting lignin has a structure of syringlyl unit (S) and guaiacyl unit (G) because use eucalyptus is a shaft wood use in the paper industry. The lignin contents the PLA matrix were 0.1, 0.3 and 0.5 phr and the improvement of lignin properties by using AKD in ratio 10:1 of lignin and AKD is caused by the reaction betwee
APA, Harvard, Vancouver, ISO, and other styles
2

Mor, Gianpaolo, and Vladimir Belashchenko. "High Stability, High Enthalpy APS Process Based on Combined Wall and Gas Stabilizations of Plasma (Part 1: Process and Coatings Introduction)." In ITSC2015, edited by A. Agarwal, G. Bolelli, A. Concustell, et al. ASM International, 2015. http://dx.doi.org/10.31399/asm.cp.itsc2015p0437.

Full text
Abstract:
Abstract The paper describes the major features of a recently developed high voltage – low current air plasma spray (APS) process and torch that is based on combined wall and gas stabilizations of plasma (C+Plasma). It is shown that the C+Plasma process is capable of efficiently generating stable plasmas without drifting or pulsing. Plasma gas selection includes N2, N2-H2, N2 -Ar-H2, Ar-H2(He), etc. Availability of stable N2-H2 plasmas having enthalpies within 30-70 kJ/sl range offers a new level of APS efficiency and coating quality. The paper includes illustrations of the C+Plasma durability
APA, Harvard, Vancouver, ISO, and other styles
3

Sudavtsova, Valentina, Larysa Romanova, Michael Ivanov, and Volodymyr Kudin. "Thermodynamic properties of liquid alloys of the Sb-Sc system." In IXth INTERNATIONAL SAMSONOV CONFERENCE “MATERIALS SCIENCE OF REFRACTORY COMPOUNDS”. Frantsevich Ukrainian Materials Research Society, 2024. http://dx.doi.org/10.62564/m4-vs1639.

Full text
Abstract:
Enthalpies of alloy formation in the Sb-Sc system have not been previously studied because scandium is refractory metal whereas stibium is extremely volatile. In this study, for the first time, the mixing enthalpies of melts in the Sb-Sc system were determined by the calorimetric method in wide concentration regions at 1413-1423 K. The minimum of the integral enthalpy of mixing is –44.8 ±2.3 kJ/mol is observed near the equiatomic composition. Such significant exothermic effects are explained by the large difference in electronegativities of the components. The limiting partial enthalpies of th
APA, Harvard, Vancouver, ISO, and other styles
4

Gaudreault, Roger, M. A. Whitehead, and Theo G. M. van de Ven. "Mechanisms of Flocculation of Microcrystalline Cellulose by Poly(ethylene oxide) and Cofactor Corilagin." In Advances in Paper Science and Technology, edited by S. J. I’Anson. Fundamental Research Committee (FRC), Manchester, 2005. http://dx.doi.org/10.15376/frc.2005.2.1269.

Full text
Abstract:
Poly(ethylene oxide) (PEO), a widely known flocculation agent used primarily as a fines retention aid in mechanical grade papers, has its efficiency enhanced by various compounds, known as cofactors. These cofactors form a complex with PEO, which acts as an efficient bridging agent for fines flocculation. The nature of the PEO/cofactor complex is mainly unknown, and it was originally believed that the association was driven by hydrogen bonding. Therefore it was decided to investigate the complex formation in more detail. As a model system we studied PEO and a model cofactor, corilagin, a precu
APA, Harvard, Vancouver, ISO, and other styles
5

Qin, Wentao, Scott Donaldson, Dan Rogers, et al. "A Latent Issue of Via Resistance: Mechanism and Solution." In ISTFA 2018. ASM International, 2018. http://dx.doi.org/10.31399/asm.cp.istfa2018p0121.

Full text
Abstract:
Abstract Many semiconductor products are manufactured with mature technologies involving the uses of aluminum (Al) lines and tungsten (W) vias. High resistances of the vias were sometimes observed only after electrical or thermal stress. A layer of Ti oxide was found on such a via. In the wafer processing, the post W chemical mechanical planarization (WCMP) cleaning left residual W oxide on the W plugs. Ti from the overlaying metal line spontaneously reduced the W oxide, through which Ti oxide formed. Compared with W oxide, the Ti oxide has a larger formation enthalpy, and the valence electron
APA, Harvard, Vancouver, ISO, and other styles
6

Zangeneh, M. "On the Inverse Design of Inter-Stage Ducts, Diffuser Walls and Meridional Geometry of Turbomachines." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-208.

Full text
Abstract:
In this paper a method is presented for the design of diffuser walls, interstage ducts and meridional geometry of turbomachines. In this method the wall geometry is designed subject to a specified meridional velocity distribution. The effect of variations in inlet velocity (or inlet shear flow) to the duct is modelled by using a vorticity term related to spanwise variations in stagnation enthalpy and the drift function. The flow field is then solved by using a streamfunction and a kinematic condition based on the vorticity in the flow. A simple transpiration model is used to update the wall ge
APA, Harvard, Vancouver, ISO, and other styles
7

Hampel, Balbina, Stefan Bauer, Norbert Heublein, Christoph Hirsch, and Thomas Sattelmayer. "Feasibility Study on Dehydrogenation of LOHC Using Excess Exhaust Heat From a Hydrogen Fueled Micro Gas Turbine." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43168.

Full text
Abstract:
In recent years, renewable energy technologies have received increasing attention. However, the constant availability of renewable energies is not predictable, so that technologies for excess energy storage become increasingly important. One possibility for the technical implementation of such a storage technology is to bind hydrogen, produced using this excess energy, to liquid organic compounds, so-called Liquid Organic Hydrogen Carriers (LOHC), where hydrogen is bound to a H2-lean LOHC molecule in an exothermal hydrogenation reaction. The dehydrogenation process releases the stored hydrogen
APA, Harvard, Vancouver, ISO, and other styles
8

Glaude, Pierre A., Rene´ Fournet, Roda Bounaceur, and Michel Moliere. "Gas Turbines and Biodiesel: A Clarification of the Relative NOX Indices of FAME, Gasoil, and Natural Gas." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59623.

Full text
Abstract:
There is currently a sustained interest in biofuels as they represent a potential alternative to petroleum derived fuels. Biofuels are likely to help decrease greenhouse gases emissions and the dependence on oil resources. Biodiesels are Fatty Acid Methyl Esters (FAMEs) that are mainly derived from vegetable oils; their compositions depend from the parent vegetables: rapeseed (“RME”), soybean (“SME”), sunflower, palm etc. A fraction of biodiesel has also an animal origin (“tallow”). A key factor for the use of biofuels in gas turbines is their Emissions Indices (NOx, CO, VOC, PM) in comparison
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Bond enthalpy' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography