951 resultados para Sharp, William, 1855-1905.
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Page 68 of the "American Jewish Cavalcade" scrapbook of Leo Baeck in New York found in ROS 10 Folder 3
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Page 12 of the "American Jewish Cavalcade" scrapbook of Leo Baeck in New York found in ROS 10 Folder 3
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The collection consists of correspondence, newspaper clippings, manuscripts and notes that relate primarily to the Schwarzbard trial and its aftermath. Correspondence with organizations: Agudah Ateret Zion, Yidish Natsionaler Arbeter Farband, Yidisher Studentn Fareyn, Jewish Agency, *Der Tog*, *Unzer tsayt*, YIVO Institute, Ligue Internationale Contre L'antisemitisme, *Morgn zhurnal*, Federation de Societes Juives de France, Jewish Veterans Organization. Correspondence with individuals: Joseph Barondess, Alberto Bianchi, Zelig Kalmanovitch, Israel Ostroff, Noah Prylucki, Anna Schwarzbard, William Zukerman. Manuscripts: typescripts of memoirs *In krig mit zikh aleyn* (At War With Myself). Poems about Schwarzbard's assassination of Petlyura. Poems by Anna Schwarzbard. Clippings about Schwarzbard. Personal documents.
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Chiefly material relating to activities against restrictive immigration legislation; also some items referring to decisions of the United States Supreme Court and naturalization of immigrants. Correspondence with members of the American Jewish Committee, primarily Herbert Friedenwald, Fulton Brylawski, and Max James Kohler. Contains also printed extracts of Congressional hearings and Congressional record.
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Contains Board of Directors minutes (1903, 1907), Executive Committee minutes (1907), Removal Committee minutes (1903-1917), Annual Reports (1910, 1913), Monthly Reports (1901-1919), Monthly Bulletins (1914-1915), studies of those removed, Bressler's "The Removal Work, Including Galveston," and several papers relating to the IRO and immigration. Financial papers include a budget (1914), comparative per capita cost figures (1909-1922), audits (1915-1918), receipts and expenditures (1918-1922), investment records, bank balances (1907-1922), removal work cash book (1904-1911), office expenses cash account (1903-1906), and the financial records of other agencies working with the IRO (1906). Includes also removal case records of first the Jewish Agricultural Society (1899-1900), and then of the IRO (1901-1922) when it took over its work, family reunion case records (1901-1904), and the follow-up records of persons removed to various cities (1903-1914). Contains also the correspondence of traveling agents' contacts throughout the U.S. from 1905-1914, among them Stanley Bero, Henry P. Goldstein, Philip Seman, and Morris D. Waldman.
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The collection contains miscellaneous writings, personal correspondence and memorabilia of Debrest, an American Jewish journalist, poet and business executive. Among the correspondents are Felix Adler and Harry Truman.
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Digital image
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The subsurface microhardness mapping technique of Chaudhri was utilized to determine the shape, size and distribution of plastic strain underneath conical indenters of varying semi-apex angles, alpha (55 degrees, 65 degrees and 75 degrees). Results show that the elastic-plastic boundary under the indenters is elliptical in nature, contradicting the expanding cavity model, and the ellipticity increases with alpha. The maximum plastic strain immediately under the indenter was found to decrease with increasing alpha. Complementary finite-element analysis was conducted to examine the ability of simulations to capture the experimental observations. A comparison of computational and experimental results indicates that the plastic strain distributions as well as the maximum strains immediately beneath the indenter do not match, suggesting that simulation of sharp indentation requires further detailed studies for complete comprehension. Representative strains, epsilon(r), evaluated as the volume-average strains within the elastic-plastic boundary, decrease with increasing alpha and are in agreement with those estimated by using the dimensional analysis. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Closed-form analytical expressions are derived for the reflection and transmission coefficients for the problem of scattering of surface water waves by a sharp discontinuity in the surface-boundary-conditions, for the case of deep water. The method involves the use of the Havelock-type expansion of the velocity potential along with an analysis to solve a Carleman-type singular integral equation over a semi-infinite range. This method of solution is an alternative to the Wiener-Hopf technique used previously.
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Effects of dynamic contact angle models on the flow dynamics of an impinging droplet in sharp interface simulations are presented in this article. In the considered finite element scheme, the free surface is tracked using the arbitrary Lagrangian-Eulerian approach. The contact angle is incorporated into the model by replacing the curvature with the Laplace-Beltrami operator and integration by parts. Further, the Navier-slip with friction boundary condition is used to avoid stress singularities at the contact line. Our study demonstrates that the contact angle models have almost no influence on the flow dynamics of the non-wetting droplets. In computations of the wetting and partially wetting droplets, different contact angle models induce different flow dynamics, especially during recoiling. It is shown that a large value for the slip number has to be used in computations of the wetting and partially wetting droplets in order to reduce the effects of the contact angle models. Among all models, the equilibrium model is simple and easy to implement. Further, the equilibrium model also incorporates the contact angle hysteresis. Thus, the equilibrium contact angle model is preferred in sharp interface numerical schemes.
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We describe two techniques to create sharp tips. The first involves the buckling of thin metal films deposited on soft, stretchable substrates. The second involves the formation of narrow necked capillary bridges.
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The nontrivial electronic topology of a topological insulator is thus far known to display signatures in a robust metallic state at the surface. Here, we establish vibrational anomalies in Raman spectra of the bulk that signify changes in electronic topology: an E-g(2) phonon softens unusually and its linewidth exhibits an asymmetric peak at the pressure induced electronic topological transition (ETT) in Sb2Se3 crystal. Our first-principles calculations confirm the electronic transition from band to topological insulating state with reversal of parity of electronic bands passing through a metallic state at the ETT, but do not capture the phonon anomalies which involve breakdown of adiabatic approximation due to strongly coupled dynamics of phonons and electrons. Treating this within a four-band model of topological insulators, we elucidate how nonadiabatic renormalization of phonons constitutes readily measurable bulk signatures of an ETT, which will facilitate efforts to develop topological insulators by modifying a band insulator. DOI: 10.1103/PhysRevLett.110.107401
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Wave propagation around various geometric expansions, structures, and obstacles in cardiac tissue may result in the formation of unidirectional block of wave propagation and the onset of reentrant arrhythmias in the heart. Therefore, we investigated the conditions under which reentrant spiral waves can be generated by high-frequency stimulation at sharp-edged obstacles in the ten Tusscher-Noble-Noble-Panfilov (TNNP) ionic model for human cardiac tissue. We show that, in a large range of parameters that account for the conductance of major inward and outward ionic currents of the model fast inward Na+ current (INa), L-type slow inward Ca2+ current (I-CaL), slow delayed-rectifier current (I-Ks), rapid delayed-rectifier current (I-Kr), inward rectifier K+ current (I-K1)], the critical period necessary for spiral formation is close to the period of a spiral wave rotating in the same tissue. We also show that there is a minimal size of the obstacle for which formation of spirals is possible; this size is similar to 2.5 cm and decreases with a decrease in the excitability of cardiac tissue. We show that other factors, such as the obstacle thickness and direction of wave propagation in relation to the obstacle, are of secondary importance and affect the conditions for spiral wave initiation only slightly. We also perform studies for obstacle shapes derived from experimental measurements of infarction scars and show that the formation of spiral waves there is facilitated by tissue remodeling around it. Overall, we demonstrate that the formation of reentrant sources around inexcitable obstacles is a potential mechanism for the onset of cardiac arrhythmias in the presence of a fast heart rate.
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A new area function is introduced and applied to a Berkovich tip in order to characterize the contact projected area between an indenter and indented material. The function can be related directly to tip-rounding, thereby having obviously physical meaning. Nanoindentation experiments are performed on a commercial Nano Indenter XPsystem. The other two area functions introduced by Oliver and Pharr and by Thurn and Cook respectively are involved in this paper for comparison. By comparison from experimental results among different area functions, the indenter tip described by the proposed area function here is very close to the experimental indenter.