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Carl N. DeSilva Kenneth A. Kline 《Zeitschrift für Angewandte Mathematik und Physik (ZAMP)》1964,15(5):557-560
Zusammenfassung Eine inkompressible viskoelastische Flüssigkeit fliesst zwischen zwei parallelen, starren, unendlichen Wänden. Es wird unter der Voraussetzung, dass die eine Wand fest ist und die andere sich mit einer exponentiell abklingenden Geschwindigkeit bewegt, das zur Aufrechterhaltung einer speziellen laminaren Strömung nötige Kraftfeld bestimmt. 相似文献
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Kenneth A. Kline 《Zeitschrift für Angewandte Mathematik und Physik (ZAMP)》1968,19(5):793-802
Zusammenfassung Die Thermodynamik der richtungsorientierten Medien wird mit Hilfe der Clausius-Duhem-Ungleichheit und des Prinzips der materiellen Objektivität untersucht. Ein besonderer Fall der Materialsymmetrie wird diskutiert.
Acknowledgment. This work was sponsored by the National Science Foundation. The author thanksS. J. Allen andC. N. DeSilva for many helpful discussions and is especially grateful to Prof.DeSilva for guidance. 相似文献
Acknowledgment. This work was sponsored by the National Science Foundation. The author thanksS. J. Allen andC. N. DeSilva for many helpful discussions and is especially grateful to Prof.DeSilva for guidance. 相似文献
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Yan J Kline AD Mo H Zartler ER Shapiro MJ 《Journal of the American Chemical Society》2002,124(34):9984-9985
A novel method based on diffusion NMR for the epitope mapping of ligand binding is presented. The intermolecular NOE builds up during a long diffusion period and creates a deviation from the linearity. The ligand proton nearest the protein generates the strongest NOE from protein during the diffusion period and has the largest deviation. Therefore, this diffusion artifact can be used to characterize the ligand binding epitope. The concept was investigated using dihydrofolate reductase (DHFR) and its ligand trimethoprim (TMP), and the epitope map of TMP on DHFR generated with this method is in excellent agreement with the structural and dynamic studies by crystallography and NMR, as well as the medicinal chemistry results. 相似文献
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Daniel F. Sunday Elizabeth Ashley Lei Wan Kanaiyalal C. Patel Ricardo Ruiz R. Joseph Kline 《Journal of Polymer Science.Polymer Physics》2015,53(8):595-603
Block copolymer directed self‐assembly (BCP) with chemical epitaxy is a promising lithographic solution for patterning features with critical dimensions under 20 nm. In this work, we study the extent to which lamellae‐forming poly(styrene‐b‐methyl methacrylate) can be directed with chemical contrast patterns when the pitch of the block copolymer is slightly compressed or stretched compared to the equilibrium pitch observed in unpatterned films. Critical dimension small angle X‐ray scattering complemented with SEM analysis was used to quantify the shape and roughness of the line/space features. It was found that the BCP was more lenient to pitch compression than to pitch stretching, tolerating at least 4.9% pitch compression, but only 2.5% pitch stretching before disrupting into dislocation or disclination defects. The more tolerant range of pitch compression is explained by considering the change in free energy with template mismatch, which suggests a larger penalty for pitch stretching than compressing. Additionally, the effect of width mismatch between chemical contrast pattern and BCP is considered for two different pattern transfer techniques. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015 , 53, 595–603 相似文献
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Exploiting natural abundance 13C–15N coupling as a method for identification of nitrogen heterocycles: practical use of the HCNMBC sequence 下载免费PDF全文
In this paper, we detail the results of 1H–15N correlation data obtained via 13C–15N coupling at natural abundance on a number of classes of azoles including pyrazoles, imidazoles and triazoles. The experiment produces data that is highly complementary to direct 1H–15N HMBC type correlations in that it can provide 15N chemical shift data for nitrogen that may not show up in the HMBC. This is particularly advantageous in the triazoles where 15N chemical shift can be diagnostic of regiochemistry. Because of the consistency in JCN values among the azoles, the experiment produces distinctive correlation patterns that can be used for identification of regiochemistry. The experiment can also be used to directly measure 13C–15N coupling constants. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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A local interaction simulation approach (LISA) for the wave propagation in inhomogeneous 2D media is presented. The method is designed to take full advantage of massively parallel computing, such as provided by the Connection Machine. Crosspoints at the intersection of orthogonal interfaces separating media of different physical properties are treated in the framework of a sharp interface model. A comparison with finite difference techniques shows that the proposed method avoids the ambiguities due to the smoothing of the physical quantities, which is necessary in order to transform differential equations into finite difference equations. The smoothing procedure may cause severe numerical errors, when the variations of the physical properties across the interfaces are large.
In order to demonstrate the efficiency and reliability of the approach several examples of simulation of pulse propagation in different media are reported. 相似文献