Log in

Relevant bibliographies by topics / Field effects in chemistry / Journal articles

To see the other types of publications on this topic, follow the link: Field effects in chemistry.

Journal articles on the topic 'Field effects in chemistry'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Field effects in chemistry.'

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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Rodgers, Christopher T. "Magnetic field effects in chemical systems." Pure and Applied Chemistry 81, no. 1 (January 1, 2009): 19–43. http://dx.doi.org/10.1351/pac-con-08-10-18.

Full text

Abstract:

Chemical reactions that involve radical intermediates can be influenced by magnetic fields, which act to alter their rate, yield, or product distribution. These effects have been studied extensively in liquids, solids, and constrained media such as micelles. They may be interpreted using the radical pair mechanism (RPM). Such effects are central to the field of spin chemistry of which there have been several detailed and extensive reviews. This review instead presents an introductory account of the field of spin chemistry, suitable for use by graduate students or researchers who are new to the area. It proceeds by giving a brief historical overview of the development of spin chemistry, before introducing the essential theory. This is then illustrated by application to a series of recent developments in solution-phase magnetic field effects (MFEs). The closing pages of this review describe the role played by spin chemistry in the remarkable magnetic compass sense of birds and other animals.

APA, Harvard, Vancouver, ISO, and other styles

2

Dittrich, B., E. Sze, J. J. Holstein, C. B. Hübschle, and D. Jayatilaka. "Crystal-field effects inL-homoserine: multipolesversusquantum chemistry." Acta Crystallographica Section A Foundations of Crystallography 68, no. 4 (May 1, 2012): 435–42. http://dx.doi.org/10.1107/s0108767312013001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Sievert, Thorbjörn, Hannu Ylönen, James D. Blande, Amélie Saunier, Dave van der Hulst, Olga Ylönen, and Marko Haapakoski. "Bank vole alarm pheromone chemistry and effects in the field." Oecologia 196, no. 3 (June 25, 2021): 667–77. http://dx.doi.org/10.1007/s00442-021-04977-w.

Full text

Abstract:

AbstractChemical communication plays an important role in mammalian life history decisions. Animals send and receive information based on body odour secretions. Odour cues provide important social information on identity, kinship, sex, group membership or genetic quality. Recent findings show, that rodents alarm their conspecifics with danger-dependent body odours after encountering a predator. In this study, we aim to identify the chemistry of alarm pheromones (AP) in the bank vole, a common boreal rodent. Furthermore, the vole foraging efficiency under perceived fear was measured in a set of field experiments in large outdoor enclosures. During the analysis of bank vole odour by gas chromatography–mass spectrometry, we identified that 1-octanol, 2-octanone, and one unknown compound as the most likely candidates to function as alarm signals. These compounds were independent of the vole’s sex. In a field experiment, voles were foraging less, i.e. they were more afraid in the AP odour foraging trays during the first day, as the odour was fresh, than in the second day. This verified the short lasting effect of volatile APs. Our results clarified the chemistry of alarming body odour compounds in mammals, and enhanced our understanding of the ecological role of AP and chemical communication in mammals.

APA, Harvard, Vancouver, ISO, and other styles

4

van der Est, Art. "Spin and Magnetic Field Effects in Chemistry and Related Phenomena." Applied Magnetic Resonance 38, no. 2 (April 7, 2010): 137–38. http://dx.doi.org/10.1007/s00723-010-0131-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Mel'nichenko, G. N., V. A. Nazarenko, and V. A. Pokrovskii. "Migration effects in field ionization." Theoretical and Experimental Chemistry 24, no. 4 (1989): 422–26. http://dx.doi.org/10.1007/bf00535115.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Maltby, Lorraine, and G. Allen Burton, Jr. "FIELD-BASED EFFECTS MEASURES." Environmental Toxicology and Chemistry 25, no. 9 (2006): 2261. http://dx.doi.org/10.1897/06-267.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Nascimento, Marcelo G., and Marco Antonio Bueno Filho. "ANALYSING EXPERIENCED ORGANIC CHEMISTRY TEACHERS’ TEACHING PLANS AND TASK PERFORMANCES BASED ON THE THEORY OF CONCEPTUAL FIELDS." Problems of Education in the 21st Century 67, no. 1 (October 25, 2015): 81–94. http://dx.doi.org/10.33225/pec/15.67.81.

Full text

Abstract:

This research analyses two experienced Organic Chemistry teachers’ teaching plans and task performances. The recorded audiovisual interviews were analyzed with computer assisted qualitative data analysis software (CAQDAS). Based on the Theory of Conceptual Fields, the teachers used an energetic-structural resolution approach characterized by the simultaneous use of structural field (SCF) and thermodynamics (TCF) articulated electronegativity, polar covalent bond, steric effects, inductive effects, resonance, aromaticity and stereochemistry. The development of the lesson plans indicated more emphasis to the structural field (SCF). The performance schemes of Organic Chemistry Tasks were not reflected into the lesson plans. Lesson planning knowledge that is subtly dependent on a teacher’s career often has an implicit impact on the mobilization of the schemes. Key words: Theory of Conceptual Fields, organic chemistry teachers, teaching planning.

APA, Harvard, Vancouver, ISO, and other styles

8

PHILLIPS, M. L. F., W. T. A. HARRISON, G. D. STUCKY, E. M. III MCCARRON, J. C. CALABRESE, and T. E. GIER. "ChemInform Abstract: Effects of Substitution Chemistry in the KTiOPO4 Structure Field." ChemInform 23, no. 17 (August 22, 2010): no. http://dx.doi.org/10.1002/chin.199217010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Lin, Chien C., F. R. Smith, and R. L. Cowan. "Effects of hydrogen water chemistry on radiation field buildup in BWRs." Nuclear Engineering and Design 166, no. 1 (October 1996): 31–36. http://dx.doi.org/10.1016/0029-5493(96)01196-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Emmons, Howard W. "Analysing far field effects." Fire Safety Journal 12, no. 3 (December 1987): 183–89. http://dx.doi.org/10.1016/0379-7112(87)90004-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Ohta, Nobuhiro. "Electric-field effects on photoinduced dynamics and function." Pure and Applied Chemistry 85, no. 7 (April 25, 2013): 1427–35. http://dx.doi.org/10.1351/pac-con-12-12-07.

Full text

Abstract:

Photoinduced electron-transfer processes are enhanced or quenched by application of electric fields, depending on the donor–acceptor pairs. Electric-field-induced quenching of photoluminescence, which results from the field-induced dissociation of the exciton state that depends on the photoexcitation wavelength, is observed in π-conjugated polymers. These electric-field effects on photoinduced dynamics have been confirmed by the measurements both of electroabsorption and electrophotoluminescence spectra and of time-resolved electrophotoluminescence decays. Time-resolved measurements of photocurrent, with which novel material function in electrical conductivity of organic materials induced by photo-irradiation and application of electric fields is confirmed, are also reviewed.

APA, Harvard, Vancouver, ISO, and other styles

12

Phillips, Mark L. F., William T. A. Harrison, Galen D. Stucky, Eugene M. McCarron, Joseph C. Calabrese, and Thurman E. Gier. "Effects of substitution chemistry in the potassium titanyl phosphate (KTiOPO4) structure field." Chemistry of Materials 4, no. 1 (January 1992): 222–33. http://dx.doi.org/10.1021/cm00019a041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Williams, P. Stephen, and J. Calvin Giddings. "Theory of Field-Programmed Field-Flow Fractionation with Corrections for Steric Effects." Analytical Chemistry 66, no. 23 (December 1994): 4215–28. http://dx.doi.org/10.1021/ac00095a017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Jones, Alex R. "Magnetic field effects in proteins." Molecular Physics 114, no. 11 (February 18, 2016): 1691–702. http://dx.doi.org/10.1080/00268976.2016.1149631.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Kirkland, J. J., L. S. Boone, and W. W. Yau. "Retention effects in thermal field-flow fractionation." Journal of Chromatography A 517 (September 1990): 377–93. http://dx.doi.org/10.1016/s0021-9673(01)95735-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Hahn, Juergen. "Environmental effects of the Kuwaiti oil field fires." Environmental Science & Technology 25, no. 9 (September 1991): 1530–32. http://dx.doi.org/10.1021/es00021a002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Blachowicz, Tomasz, and Andrea Ehrmann. "New Materials and Effects in Molecular Nanomagnets." Applied Sciences 11, no. 16 (August 16, 2021): 7510. http://dx.doi.org/10.3390/app11167510.

Full text

Abstract:

Molecular magnets are a relatively new class of purely organic or metallo-organic materials, showing magnetism even without an external magnetic field. This interdisciplinary field between chemistry and physics has been gaining increased interest since the 1990s. While bulk molecular magnets are usually hard to build because of their molecular structures, low-dimensional molecular magnets are often easier to construct, down to dot-like (zero-dimensional) structures, which are investigated by different scanning probe technologies. On these scales, new effects such as superparamagnetic behavior or coherent switching during magnetization reversal can be recognized. Here, we give an overview of the recent advances in molecular nanomagnets, starting with single-molecule magnets (0D), typically based on Mn12, Fe8, or Mn4, going further to single-chain magnets (1D) and finally higher-dimensional molecular nanomagnets. This review does not aim to give a comprehensive overview of all research fields dealing with molecular nanomagnets, but instead aims at pointing out diverse possible materials and effects in order to stimulate new research in this broad field of nanomagnetism.

APA, Harvard, Vancouver, ISO, and other styles

18

Novikov, Alexander S. "Computational Insights into Industrial Chemistry." Computation 8, no. 4 (November 12, 2020): 97. http://dx.doi.org/10.3390/computation8040097.

Full text

Abstract:

This brief Editorial is dedicated to announcing the Special Issue “Computational Insights into Industrial Chemistry”. The Special Issue covers the most recent progress in the rapidly growing field of computational chemistry, and the application of computer modeling in topics relevant to industrial chemistry (chemical industrial processes and materials, environmental effects caused by chemical industry activities, computer-aided design of catalysts, green chemistry, etc.).

APA, Harvard, Vancouver, ISO, and other styles

19

Hoff, A. J., P. Gast, R. van der Vos, J. Vrieze, E. M. Franken, and E. J. Lous. "Magnetic Field Effects: MARY, MIMS and MODS*." Zeitschrift für Physikalische Chemie 1, Part_1 (January 1992): 175–92. http://dx.doi.org/10.1524/zpch.1992.1.part_1.175.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Brocklehurst, Brian. "Magnetic Field Effects in the Vacuum Ultraviolet*." Zeitschrift für Physikalische Chemie 1, Part_2 (January 1992): 217–26. http://dx.doi.org/10.1524/zpch.1992.1.part_2.217.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Hoff, A. J., P. Gast, R. van der Vos, J. Vrieze, E. M. Franken, and E. J. Lous. "Magnetic Field Effects: MARY, MIMS and MODS*." Zeitschrift für Physikalische Chemie 180, Part_1_2 (January 1993): 175–92. http://dx.doi.org/10.1524/zpch.1993.180.part_1_2.175.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Brocklehurst, Brian. "Magnetic Field Effects in the Vacuum Ultraviolet*." Zeitschrift für Physikalische Chemie 182, Part_1_2 (January 1993): 217–26. http://dx.doi.org/10.1524/zpch.1993.182.part_1_2.217.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

TANIMOTO, Yoshifumi, and Yoshihisa FUJIWARA. "Effects of High Magnetic Field on Organic Reactions." Journal of Synthetic Organic Chemistry, Japan 53, no. 5 (1995): 413–22. http://dx.doi.org/10.5059/yukigoseikyokaishi.53.413.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Nishiyama, Satoko, and Ryoichi Aogaki. "High Magnetic Field Effects on Interdigitated Microarray Electrodes." Bulletin of the Chemical Society of Japan 73, no. 8 (August 2000): 1919–23. http://dx.doi.org/10.1246/bcsj.73.1919.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Tanimoto, Yoshifumi, Chikako Udagawa, Akio Katsuki, Syou Maki, and Shotaro Morimoto. "Weak Magnetic Field Effects on Silver Dendrite Formation." Bulletin of the Chemical Society of Japan 86, no. 12 (December 15, 2013): 1447–49. http://dx.doi.org/10.1246/bcsj.20130168.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Déjean, Victoire, Marcin Konowalczyk, Jamie Gravell, Matthew J. Golesworthy, Catlin Gunn, Nils Pompe, Olivia Foster Vander Elst, et al. "Detection of magnetic field effects by confocal microscopy." Chemical Science 11, no. 30 (2020): 7772–81. http://dx.doi.org/10.1039/d0sc01986k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Levitt, Malcolm H. "Demagnetization field effects in two-dimensional solution NMR." Concepts in Magnetic Resonance 8, no. 2 (1996): 77–103. http://dx.doi.org/10.1002/(sici)1099-0534(1996)8:2<77::aid-cmr1>3.0.co;2-l.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Seyfried, L., F. Garin, G. Maire, J. M. Thiebaut, and G. Roussy. "Microwave Electromagnetic-Field Effects on Reforming Catalysts ." Journal of Catalysis 148, no. 1 (July 1994): 281–87. http://dx.doi.org/10.1006/jcat.1994.1209.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Biernacki, Joseph J., P. Manikya Mellacheruvu, and Satish M. Mahajan. "Poisson's effects in electrical field flow fractionation." Journal of Separation Science 31, no. 12 (July 2008): 2219–30. http://dx.doi.org/10.1002/jssc.200800003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Katz, Eugenii, Oleg Lioubashevski, and Itamar Willner. "Magnetic Field Effects on Cytochromec-Mediated Bioelectrocatalytic Transformations." Journal of the American Chemical Society 126, no. 35 (September 2004): 11088–92. http://dx.doi.org/10.1021/ja048699m.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Berg, H. "Charge and Field Effects on Biosystems III." Bioelectrochemistry and Bioenergetics 29, no. 3 (February 1993): 372–73. http://dx.doi.org/10.1016/0302-4598(93)85014-k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Messiha, Hanan L., Thanyaporn Wongnate, Pimchai Chaiyen, Alex R. Jones, and Nigel S. Scrutton. "Magnetic field effects as a result of the radical pair mechanism are unlikely in redox enzymes." Journal of The Royal Society Interface 12, no. 103 (February 2015): 20141155. http://dx.doi.org/10.1098/rsif.2014.1155.

Full text

Abstract:

Environmental exposure to electromagnetic fields is potentially carcinogenic. The radical pair mechanism is considered the most feasible mechanism of interaction between weak magnetic fields encountered in our environment and biochemical systems. Radicals are abundant in biology, both as free radicals and reaction intermediates in enzyme mechanisms. The catalytic cycles of some flavin-dependent enzymes are either known or potentially involve radical pairs. Here, we have investigated the magnetic field sensitivity of a number of flavoenzymes with important cellular roles. We also investigated the magnetic field sensitivity of a model system involving stepwise reduction of a flavin analogue by a nicotinamide analogue—a reaction known to proceed via a radical pair. Under the experimental conditions used, magnetic field sensitivity was not observed in the reaction kinetics from stopped-flow measurements in any of the systems studied. Although widely implicated in radical pair chemistry, we conclude that thermally driven, flavoenzyme-catalysed reactions are unlikely to be influenced by exposure to external magnetic fields.

APA, Harvard, Vancouver, ISO, and other styles

33

Onuki, Akira, and Jun-ichi Fukuda. "Electric Field Effects and Form Birefringence in Diblock Copolymers." Macromolecules 28, no. 26 (December 1995): 8788–95. http://dx.doi.org/10.1021/ma00130a011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Stuerga, D. A. C., and P. Gaillard. "Microwave Athermal Effects in Chemistry: A Myth’s Autopsy: Part II: Orienting effects and thermodynamic consequences of electric field." Journal of Microwave Power and Electromagnetic Energy 31, no. 2 (January 1996): 101–13. http://dx.doi.org/10.1080/08327823.1996.11688300.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Bright, A. A. "Magnetron ion etching with CF4 based plasmas: Effects of magnetic field on plasma chemistry." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 7, no. 3 (May 1989): 542. http://dx.doi.org/10.1116/1.584781.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Glassgold, A. E. "The Effects of Chromospheric Radiation on the Circumstellar Chemistry of Evolved Stars." Symposium - International Astronomical Union 120 (1987): 379–85. http://dx.doi.org/10.1017/s0074180900154336.

Full text

Abstract:

The physical and chemical properties of the circumstellar envelopes of evolved stars are strongly affected by the interstellar radiation field. Other sources of UV radiation should be similarly effective, and some examples are nearby stars (including companions), chromospheres, and the central stars of planetary nebulae. We consider the particular case of Alpha Ori, which has a chromosphere and an extended CSE with a small dust to gas ratio. Its properties are dominated by the chromospheric and interstellar radiation fields. The most common species are neutral atoms and first ions, and the electron fraction is high throughout the entire CSE, i.e. at least 10−4. The abundances of neutrals peak in the outer CSE close to where the chromospheric and interstellar radiation fields are equal. An important application is KI, whose density has been measured by scattering. The theory predicts that the slope of the KI density should change from about −1.5 to −3.5 in the outer envelope, the exact values being determined by the temperature distribution. The mass loss rate implied by the KI density is of the order of 4×10−6 M⊙ yr−1.

APA, Harvard, Vancouver, ISO, and other styles

37

Bechir, Edwin Sever, Farah Bechir, and Bogdan Vladila. "Effects of Electromagnetic Field Use on Jaw Bone Densification." Revista de Chimie 69, no. 12 (January 15, 2019): 3705–9. http://dx.doi.org/10.37358/rc.18.12.6824.

Full text

Abstract:

The working hypothesis started from the premise of the benefits of the electromagnetic field therapy (EMFT) benefits in order to densify the periodontal bone tissues. The objective of this study was to quantify the results of using this therapy with the Electronic Doctor Stem Generator (EDSG) in the densification of affected alveolar bone tissues by clinical and radiological examinations. The study was performed on 30 patients, who benefited from adjuvant therapy in the electromagnetic field (EMF) with the EDSG device after performing the specific dental treatments. We applied these very low-frequency EMF bioactivation treatment delivered by EDSG device, 30 daily exposures for a 2-hour interval. The results proved the appreciable reduction of teeth mobility, the reduction of periodontal pockets depth and the bone regeneration in the regions exposed to the EMF produced by EDSG device. EMF adjuvant therapy with EDSG device is an innovative, atraumatic and non-invasive therapy.

APA, Harvard, Vancouver, ISO, and other styles

38

Steiner, Ulrich E., and Thomas Ulrich. "Magnetic field effects in chemical kinetics and related phenomena." Chemical Reviews 89, no. 1 (January 1989): 51–147. http://dx.doi.org/10.1021/cr00091a003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Glaum, Robert, Waldemar Grunwald, Nils Kannengießer, and Anna Bronova. "Analysis of Ligand Field Effects in Europium(III) Phosphates." Zeitschrift für anorganische und allgemeine Chemie 646, no. 3 (February 14, 2020): 184–92. http://dx.doi.org/10.1002/zaac.202000019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Hata, Norisuke, and Naoya Nishida. "Photochemical Magnetic Field Effects of 4-Methyl-2-quinolinecarbonitrile." Bulletin of the Chemical Society of Japan 58, no. 12 (December 1985): 3423–30. http://dx.doi.org/10.1246/bcsj.58.3423.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Uechi, Ichiro, Masao Fujiwara, Yoshihisa Fujiwara, Yohsuke Yamamoto, and Yoshifumi Tanimoto. "Magnetic Field Effects on Anodic Oxidation of Potassium Iodide." Bulletin of the Chemical Society of Japan 75, no. 11 (November 2002): 2379–82. http://dx.doi.org/10.1246/bcsj.75.2379.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Kuzaev, Anton K., Aleksey M. Grobov, Evgenii M. Pliss, and Anatoly L. Buchachenko. "Magnetic field effects on the initiation of chain oxidation." Mendeleev Communications 31, no. 3 (May 2021): 341–42. http://dx.doi.org/10.1016/j.mencom.2021.04.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Kuzaev, Anton K., Aleksey M. Grobov, Evgenii M. Pliss, and Anatoly L. Buchachenko. "Magnetic field effects on the initiation of chain oxidation." Mendeleev Communications 31, no. 3 (May 2021): 341–42. http://dx.doi.org/10.1016/j.mencom.2021.05.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Van de Sande, M., J. O. Sundqvist, T. J. Millar, D. Keller, W. Homan, A. de Koter, L. Decin, and F. De Ceuster. "Determining the effects of clumping and porosity on the chemistry in a non-uniform AGB outflow." Astronomy & Astrophysics 616 (August 2018): A106. http://dx.doi.org/10.1051/0004-6361/201732276.

Full text

Abstract:

Context. In the inner regions of asymptotic giant branch (AGB) outflows, several molecules have been detected with abundances much higher than those predicted from thermodynamic equilibrium chemical models. The presence of the majority of these species can be explained by shock-induced non-equilibrium chemical models, where shocks caused by the pulsating star take the chemistry out of equilibrium in the inner region. Moreover, a non-uniform density structure has been detected in several AGB outflows. Both large-scale structures, such as spirals and disks, and small-scale density inhomogeneities or clumps have been observed. These structures may also have a considerable impact on the circumstellar chemistry. A detailed parameter study on the quantitative effects of a non-homogeneous outflow has so far not been performed. Aims. We examine the effects of a non-uniform density distribution within an AGB outflow on its chemistry by considering a stochastic, clumpy density structure. Methods. We implement a porosity formalism for treating the increased leakage of light associated with radiation transport through a clumpy, porous medium. We then use this method to examine the effects from the altered UV radiation field penetration on the chemistry, accounting also for the increased reaction rates of two-body processes in the overdense clumps. The specific clumpiness is determined by three parameters: the characteristic length scale of the clumps at the stellar surface, the clump volume filling factor, and the inter-clump density contrast. In this paper, the clumps are assumed to have a spatially constant volume filling factor, which implies that they expand as they move outward in the wind. Results. We present a parameter study of the effect of clumping and porosity on the chemistry throughout the outflow. Both the higher density within the clumps and the increased UV radiation field penetration have an important impact on the chemistry, as they both alter the chemical pathways throughout the outflow. The increased amount of UV radiation in the inner region leads to photodissociation of parent species, releasing the otherwise deficient elements. We find an increased abundance in the inner region of all species not expected to be present assuming thermodynamic equilibrium chemistry, such as HCN in O-rich outflows, H2O in C-rich outflows, and NH3 in both. Conclusions. A non-uniform density distribution directly influences the chemistry throughout the AGB outflow, both through the density structure itself and through its effect on the UV radiation field. Species not expected to be present in the inner region of the outflow assuming thermodynamic equilibrium chemistry are now formed in this region, including species that are not formed in greater abundance by shock-induced non-equilibrium chemistry models. Outflows whose clumps have a large overdensity and that are very porous to the interstellar UV radiation field yield abundances comparable to those observed in O-rich and C-rich outflows for most of the unexpected species investigated. The inner wind abundances of H2O in C-rich outflows and of NH3 in O-rich and C-rich outflows are however underpredicted.

APA, Harvard, Vancouver, ISO, and other styles

45

Su, Hai-lin, Shao-long Tang, Rui-long Wang, Yi-qing Chen, Chong Jia, and You-wei Du. "Fe48Co52Alloy Nanowire Arrays: Effects of Magnetic Field Annealing." Chinese Journal of Chemical Physics 22, no. 1 (February 2009): 82–86. http://dx.doi.org/10.1088/1674-0068/22/01/82-86.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Nakagaki, Ryoichi, Kazuhisa Shimizu, and Kiyoshi Mutai. "Magnetic Field Effects upon Photochemistry of Benzophenonecarboxylate Esters*." Zeitschrift für Physikalische Chemie 1, Part_2 (January 1992): 255–61. http://dx.doi.org/10.1524/zpch.1992.1.part_2.255.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Nakagaki, Ryoichi, Kazuhisa Shimizu, and Kiyoshi Mutai. "Magnetic Field Effects upon Photochemistry of Benzophenonecarboxylate Esters*." Zeitschrift für Physikalische Chemie 182, Part_1_2 (January 1993): 255–61. http://dx.doi.org/10.1524/zpch.1993.182.part_1_2.255.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Munir, Z. A. "Field-Effects in Self-Propagating Solid-State Reactions." Zeitschrift für Physikalische Chemie 207, Part_1_2 (January 1998): 39–57. http://dx.doi.org/10.1524/zpch.1998.207.part_1_2.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Nakagaki, Ryoichi, Yoshifumi Tanimoto, and Kiyoshi Mutai. "Magnetic field effects upon photochemistry of bifuctional chain molecules." Journal of Physical Organic Chemistry 6, no. 7 (July 1993): 381–92. http://dx.doi.org/10.1002/poc.610060702.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Budi, Akin, F. Sue Legge, Herbert Treutlein, and Irene Yarovsky. "Electric Field Effects on Insulin Chain-B Conformation." Journal of Physical Chemistry B 109, no. 47 (December 2005): 22641–48. http://dx.doi.org/10.1021/jp052742q.

Full text

APA, Harvard, Vancouver, ISO, and other styles

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!