Academic literature on the topic 'Chemical bonds'

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Journal articles on the topic "Chemical bonds"

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Luckham, Paul. "Breaking chemical bonds." Physics World 12, no. 6 (1999): 23–24. http://dx.doi.org/10.1088/2058-7058/12/6/24.

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Perez, R. "Discriminating Chemical Bonds." Science 337, no. 6100 (2012): 1305–6. http://dx.doi.org/10.1126/science.1227726.

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Carlson, Shawn. "Exploring Chemical Bonds." Scientific American 274, no. 3 (1996): 106–7. http://dx.doi.org/10.1038/scientificamerican0396-106.

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Nakashima, P. N. H., A. E. Smith, J. Etheridge, and B. C. Muddle. "Chemical bonds in aluminium." Acta Crystallographica Section A Foundations of Crystallography 67, a1 (2011): C101. http://dx.doi.org/10.1107/s0108767311097534.

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Khoury, Jason F., and Leslie M. Schoop. "Chemical bonds in topological materials." Trends in Chemistry 3, no. 9 (2021): 700–715. http://dx.doi.org/10.1016/j.trechm.2021.04.011.

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Amato, I. "Stretching Conceptions of Chemical Bonds." Science News 139, no. 5 (1991): 69. http://dx.doi.org/10.2307/3975415.

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Brown, I. D., A. Dabkowski, and A. McCleary. "Thermal Expansion of Chemical Bonds." Acta Crystallographica Section B Structural Science 53, no. 5 (1997): 750–61. http://dx.doi.org/10.1107/s0108768197005909.

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Using the bond-valence model, a relationship is developed between the thermal expansion of a chemical bond, its amplitude of thermal vibration and its force constant. An empirical expression found between bond valence and the force constants derived from vibrational spectroscopy allows all of these quantities to be predicted from either the expected or the observed bond valence. The thermal expansion predicted by these relations is in excellent agreement with the average expansion observed around cations in inorganic solids, but individual bonds are found to expand more or less than this depen
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Kuklin, R. N. "Chemical bonds and intramolecular barriers." Protection of Metals and Physical Chemistry of Surfaces 50, no. 4 (2014): 447–53. http://dx.doi.org/10.1134/s2070205114040091.

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Ponec, Robert. "Electron Pairing and Chemical Bonds." Collection of Czechoslovak Chemical Communications 59, no. 3 (1994): 505–16. http://dx.doi.org/10.1135/cccc19940505.

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The recently proposed population analysis of pair densities is applied to the investigation of molecular structure of several simple molecules. The values of pairon populations straightforwardly reproduce the classical structural formula including the multiplicity of the bonds and provide thus the so far missing link between quantum chemical and Lewis's classical picture of bonding. As demonstrated, the formalism of the proposed approach provides strong theoretical evidence for the frequently expected but so far elusive role of electron pairing in chemical bonding.
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Serkov, A. T. "Chemical bonds in carbon fibres." Fibre Chemistry 38, no. 6 (2006): 495–98. http://dx.doi.org/10.1007/s10692-006-0115-z.

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Dissertations / Theses on the topic "Chemical bonds"

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Szarek, Pawel. "Theoretical Study of Electronic States of Chemical Bonds." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/66212.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第14161号<br>工博第2995号<br>新制||工||1444(附属図書館)<br>26467<br>UT51-2008-N478<br>京都大学大学院工学研究科マイクロエンジニアリング専攻<br>(主査)教授 立花 明知, 教授 榊 茂好, 教授 木村 健二<br>学位規則第4条第1項該当
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Peebles, Lynda Renee. "Investigations of Thermochemistry and the Kinetics of H Atom Radical Reactions." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3275/.

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The thermochemistry of several species, and the kinetics of various H atom radical reactions relevant to atmospheric and combustion chemistry were investigated using ab initio theoretical techniques and the flash photolysis / resonance fluorescence technique. Using ab initio quantum mechanical calculations up to the G3 level of theory, the C-H bond strengths of several alkanes were calculated. The bond strengths were calculated using two working reactions. From the results, it is apparent that the bond strengths decrease as methyl groups are added to the central carbon. The results are in good
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Shen, Yangyang. "Visible Light Photoredox Promoted Transformations of Inert Chemical Bonds." Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/665125.

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L'última dècada ha estat testimoni del desenvolupament dramàtic de la catàlisi de fotògrafs de llum visible, s'han descobert algunes de les transformacions no reconegudes anteriorment i es van iniciar en condicions excepcionalment suaus. Les aplicacions habilitades per la tècnica de photoredox s'han trobat en síntesi orgànica, farmàcia i ciències dels materials. Tanmateix, la funcionalització dels enllaços químics inerts més enllà de la capacitat confinada dels fotocatalizadores convencionals segueix sent menys explorada. Tenint en compte l'interès investigador del grup Martín i el potencial
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Jang, Nak Han. "Developing and validating a chemical bonding instrument for Korean high school students /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3115557.

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Uang, Shinian. "Preparation and Stereochemistry of Reactive Intermediates Containing a Silicon-Carbon Double Bond." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc277928/.

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1,1-Dimethyl-2-neopentylsilene reacted with the N-methylimine of benzophenone to give 1,2,2-trimethyl-3- neopentyl-4,4-diphenyl-l-aza-2-silacyclobutane, I, and 2,3,4,4a-tetrahydro-2,3,3-trimethyl-1-phenyl-4-neopentyl-2- aza-3-silanephthalene, II, in 35% and 20% yields, respectively. Compounds I and II did not serve as thermal silene precursors. Heating I and II to over 280°C did not yield 1,3-disilacyclobutanes. In the presence of 2,3- dimethyl-1,3-butadiene typical silene products were not obtained. However, I and II reacted rapidly with methanol at room temperature to give the ring-opened pr
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Brea, Noriega Oriana. "Novel tools for the analysis of non-standard chemical bonds : theoretical insight into the nature of beryllium bonds." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30039/document.

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Le concept de liaison chimique compte parmi les plus importants de la chimie car il permet de décrire aussi bien les propriétés chimiques d'un système que de comprendre et prédire les réactions chimiques. L'objectif principal de cette thèse est l'étude de nouveaux types d'interactions chimiques impliquant l'atome de béryllium. L'atome Be présente d'importantes propriétés chimiques en raison de la basse énergie des orbitales pBe. Compte tenu de leur toxicité, les composés de béryllium ont été relativement peu étudié sur le plan expérimental. Nous rapportons une analyse théorique de trois nouvea
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Dressel, Jürgen. "Through-bond interaction of two mutually perpendicular [pi]-ribbons through a cyclobutane relay /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487324944214397.

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Determan, John J. Omary Mohammad A. "Computational studies of bonding and phosphorescent properties of group 12 oligomers and extended excimers." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-9108.

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Hoskins, Travis Justin Christopher. "Carbon-carbon bond forming reactions." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29769.

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Thesis (M. S.)--Chemical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Christopher Jones; Committee Co-Chair: Dr. Pradeep Agrawal; Committee Member: Dr. Sujit Banerjee; Committee Member: Dr. Tom Fuller. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Austen, Maggie A. Bader R. F. W. "A new procedure for determining bond orders in polar molecules, with applications to phosphorus and nitrogen containing systems /." *McMaster only, 2003.

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Books on the topic "Chemical bonds"

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Manning, Phillip. Chemical bonds. Chelsea House, 2008.

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Fliszár, Sándor. Atoms, chemical bonds, and bond dissociation energies. Springer-Verlag, 1994.

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Fliszár, Sándor. Atoms, Chemical Bonds and Bond Dissociation Energies. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-51492-0.

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Sirota, N. N., ed. Chemical Bonds in Solids. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4684-1686-2.

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Burdett, Jeremy K. Chemical bonds: A dialog. Wiley, 1997.

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Webster, Brian C. Chemical bonding theory. Blackwell Scientific Publications, 1990.

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March, Norman H. Chemical Bonds Outside Metal Surfaces. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2117-0.

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March, Norman H. Chemical Bonds Outside Metal Surfaces. Springer US, 1986.

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Gankin, V. I͡U. The new theory of chemical bonding and chemical kinetics. Asta, 1991.

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Webster, Brian. Chemical bonding theory. Blackwell Scientific, 1990.

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Book chapters on the topic "Chemical bonds"

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Bickmore, Barry R., and Matthew C. F. Wander. "Chemical Bonds." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39193-9_4-1.

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Bickmore, Barry R., and Matthew C. F. Wander. "Chemical Bonds." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_4.

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Freemantle, Michael. "Chemical Bonds." In Chemistry in Action. Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-18541-2_2.

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Gooch, Jan W. "Bonds, Chemical." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1498.

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Cottrell, Alan. "Bonds." In Chemical Bonding in Transition Metal Carbides. CRC Press, 2025. https://doi.org/10.1201/9781003575894-3.

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Wang, Changzhen. "Quantum Chemical Basis of Chemical Bonds." In Theory and Application of Rare Earth Materials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-4178-8_1.

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Liebau, Friedrich. "Chemical Bonds in Silicates." In Structural Chemistry of Silicates. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-50076-3_3.

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Shur, Michael. "Chemical Bonds and Crystal Structure." In GaAs Devices and Circuits. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4899-1989-2_1.

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March, N. H. "Chemical Bonds outside Solid Surfaces." In Interaction of Atoms and Molecules with Solid Surfaces. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8777-0_1.

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Malgrange, Cécile, Christian Ricolleau, and Michel Schlenker. "Chemical bonds and crystal structures." In Symmetry and Physical Properties of Crystals. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8993-6_8.

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Conference papers on the topic "Chemical bonds"

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Tretiak, Sergei. "Probing Dynamics of Chemical Bonds in Organic Chromophores by X-ray Spectroscopies." In Solar Energy and Light-Emitting Devices. Optica Publishing Group, 2024. https://doi.org/10.1364/seled.2024.sth2f.2.

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I will overview some possible measurements that can be done with X-ray lasers suggested by computational investigations. This includes monitoring the coherence evolution in molecular photoswitches and using X-ray Circular Dichroism as local chirality probe. Full-text article not available; see video presentation
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Cheng, Chaoliang, and Jing Zhou. "Inexpensive and Efficient Backside Decapsulation Technique for Challenging Down Bond Devices." In ISTFA 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.istfa2024p0515.

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Abstract Backside decapsulation is necessary to be able to perform failure analysis on devices with dense metallization. However, for down bond devices with the down bonds located too close to the die edge, using the traditional chemical method tends to overetch the bonding wires, and using the precision milling tool is too time-consuming. In this paper, a new inexpensive and efficient method is developed for challenging down bond devices with the die attach pad (DAP) buried in the molding compound. This method uses laser to reduce the thickness of the whole die area molding compound first and
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Li, Yi, Weiwei Liu, Xiaohui Guo, Xiuzhen Lu, Yan Zhang, and Yong Zhang. "Revealing the Effect of Chemical Bonds on Interface Thermal Resistance of Graphene Film/Cu Laminate Structure." In 2024 25th International Conference on Electronic Packaging Technology (ICEPT). IEEE, 2024. http://dx.doi.org/10.1109/icept63120.2024.10668649.

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Michalske, T. A. "Fundamental Studies of Glass Fracture." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92161.

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Abstract Because glass is a brittle material, its susceptibility to fracture often limits its use in technological applications and is thus a topic of practical concern. A particularly vexing phenomenon known to occur in glass is delayed failure or static fatigue. By studying the effect of controlled amounts of reactive gases on the fracture rate in silica glass, we have developed models for the crack tip chemical reactions that lead to stress corrosion fracture. In this study, the measured rates of reaction on strained silicate model compounds and silica surface defect species are used to dem
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Kumar, Dharmendr, Vinay Jain, and Beena Rai. "Understanding the Role of Various Functional Groups in a Molecule on Its Corrosion Inhibition Performance Using Density Functional Theory - the Case of trans-Cinnamaldehyde as an Excellent Inhibitor for Steels." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19538.

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Abstract We have investigated the role of various structural fragments, viz. C=C, C=O and the aromatic benzene ring present in trans-cinnamaldehyde (TCA) on its inhibition performance using density functional theory (DFT). For this purpose, the adsorption behavior of 2-methylbutanal (2MB), benzene (BZ), crotonaldehyde (CA), and trans-cinnamaldehyde (TCA) on Fe (001) surface were investigated. The quantum chemical descriptors and computed adsorption energies indicate that the inhibition efficiencies vary in the following order: 2MB&amp;lt; CA &amp;lt;TCA. Additionally, a deeper analysis of adso
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Kamaratou, Michaela, and Konstantinos D. Demadis. "Investigating Alternative Mechanisms for Metal-Silicate Scale Formation: Do Metal Hydroxides Play a Role?" In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17702.

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Abstract Colloidal silica is one of the most undesirable deposits in industrial water treatment. It is rare, compared to other more common mineral scales, such as CaCO3, but its formation and deposition onto critical equipment surfaces can be problematic. Control approaches usually include: (a) removal of “soluble” and colloidal silica before entering the water system, and (b) use of chemical scale inhibitors/dispersants. Nevertheless, silica scale inhibition is not easy because of the chemical nature of colloidal silica. Silica is a random, three-dimensional polymer that forms by propagation
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de Freitas, Renato Teixeira, and Thomas Georg Fink. "How a Combination of a Polymer and PVC Film Can Provide Complete Green Coating Solutions?" In SSPC 2018. SSPC, 2018. https://doi.org/10.5006/s2018-00024.

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Abstract Vegetal polymers are today an cost effective solution for complex metallic geometry parts (bolts, flanges, valves, etc…), PVC vinyl film became the same for flat and semi flat shapes (bulkheads, tank walls, pipes, etc…). These methods do not require costly surface preparation such as SSPC-SP10, just cleaning per SSPC-SP2. Together it leads complete and long longevity if compared to most of conventional painting procedures, generating both performance and economic benefits. Vegetal thermoplastic Polymers; Current solutions prove challenging to totally eradicate corrosion since many ind
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Nowak, Stanislaw. "Chemical bonds and interatomic forces in semimetals." In International Conference on Solid State Crystals '98, edited by Andrzej Majchrowski and Jerzy Zielinski. SPIE, 1999. http://dx.doi.org/10.1117/12.342983.

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Dar, M. Ibrahim. "Understanding Chemical Bonds in Metal Halide Perovskite Devices." In MATSUS Spring 2024 Conference. FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2023. http://dx.doi.org/10.29363/nanoge.matsus.2024.282.

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YANG, RALPH T. "NEW ADSORBENTS FOR GAS SEPARATION BY WEAK CHEMICAL BONDS." In Proceedings of the Second Pacific Basin Conference. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812793331_0004.

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Reports on the topic "Chemical bonds"

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Yates, Jr, and John T. The Activation of Chemical Bonds at Surfaces. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada248666.

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Langhoff, P. W., J. D. Mills, J. A. Boatz, and G. A. Gallup. Quantum-Mechanical Definition of Atoms and Chemical Bonds in Molecules. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada626631.

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Jacobs, Patrick W. M., Арнольд Юхимович Ків, Володимир Миколайович Соловйов, and Tatyana N. Maximova. Radiation-stimulated processes in Si surface layers. Transport and Telecommunication Institute, 1999. http://dx.doi.org/10.31812/0564/1023.

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Molecular dynamics computer simulations have been performed to study the character o disordering of atom configurations in Si surface layers. The relaxation of free Si surface was investigated. The main structural parameters were calculated, such as a distribution of angle between chemical bonds, the density of dangling bonds, structural peculiarities of Si surface layers and radiation effects. It was concluded that Si surface at real conditions is a disordered phase similar to a-Si
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Yates, Jr, and John T. The Orientation of Chemical Bonds at Surfaces: A Key to Understanding the Structure and Bonding of Surface Species. Defense Technical Information Center, 1989. http://dx.doi.org/10.21236/ada209833.

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López-Galindo, Angie, Manuela Vargas-Rojas, and Jorge Medina-Perilla. Evaluation of Dicumyl Peroxide as a Coupling Agent in Thermoplastic Starch and BioPBS Composites. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.8.

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To address plastic pollution from fossil fuel polymers, biodegradable alternatives like starch and polybutylene succinate (PBS) are proposed. However, starch is hydrophilic, while PBS and PBSA are hydrophobic. This research investigates the use of dicumyl peroxide (DCP) and tartaric acid (TA) as coupling agents in blends of thermoplastic starch (TPS) and PBS/PBSA, with glycerol as a plasticizer. Different weight/weight compositions of DCP and TA were added to blends in an internal mixer and subsequently compressed molded into films. DCP enhances tensile strength and ductility but increases tor
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Anderson, Olin, and Gad Galili. Development of Assay Systems for Bioengineering Proteins that Affect Dough Quality and Wheat Utilization. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568781.bard.

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The quality and utilization of wheat is largely dependent upon the exact physical/chemical properties of the doughs made from flour/water mixtures. Among the wheat seed components most correlated with dough visoelastic parameters are the high-molecular-weight (HMW) glutenin subunits whose disulfide cross-linked macropolymer is critical for dough functionality. We have used the tools of molecular biology, wheat transformation, heterologous expression of HMW-glutenin subunits in bacteria, and dough micro-mixing experiments to examine some of the molecular basis of HMW-glutenin functionality. In
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Nilsson, A., N. Wassdahl, and M. Weinelt. Atom-specific look at the surface chemical bond using x-ray emission spectroscopy. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/603556.

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Rafaeli, Ada, Wendell Roelofs, and Anat Zada Byers. Identification and gene regulation of the desaturase enzymes involved in sex-pheromone biosynthesis of pest moths infesting grain. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7613880.bard.

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The original objectives of the approved proposal included: 1. Establishment of the biosynthetic pathways for pheromone production using labeled precursors and GC-MS. 2. The elucidation of a circadian regulation of key enzymes in the biosynthetic pathway. 3. The identification, characterization and confirmation of functional expression of the delta-desaturases. 4. The identification of gene regulatory processes involved in the expression of the key enzymes in the biosynthetic pathway. Background to the topic: Moths constitute one of the major groups of pest insects in agriculture and their repr
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Yates, John T., and Jr. Electron Stimulated Desorption-Ion Angular Distribution (ESDIAD): A method for Imaging Chemical Bond Directions and Thermal Disorder in Adsorbed Species. Defense Technical Information Center, 1993. http://dx.doi.org/10.21236/ada268888.

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Baah, Prince. Implementing Epoxy Injection in Concrete Overlaid Bridge Decks. Purdue University, 2023. http://dx.doi.org/10.5703/1288284317588.

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Concrete overlays have proven to be an effective maintenance treatment as they slow de-icing chemical and water penetration into the original deck surface. Typically, due to vibration, structural flexibility, and weak bond between the concrete overlay and deck concrete potentially due to poor construction, de-bonding develops at the boundary between the original deck and overlay. This de-bonding creates voids, providing reservoir for chloride laden water to fill after it penetrates cracks in the surface. Displacing this liquid solution and filling these cracks with epoxy helps reduce freeze/th
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