2,699 research outputs found
Influence of temperature and sliding speed on the subsurface microstructure evolution of EN AW-6060 under sticking friction conditions
No full textThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in AIP Conference Proceedings 1896, 140012 (2017) and may be found at https://doi.org/10.1063/1.5008168.The microstructure evolution of the friction boundary layer of the aluminum alloy EN AW-6060 was investigated. Sticking friction tests at different temperatures and sliding speeds were carried out. A severe deformation below the friction surface was observed by means of LOM and EBSD mapping. Thus, the thickness variation and the grain structure of the high deformation zone could be described. Fibrous structure was observed at 300 °C and 400 °C, while equiaxed grains with high misorientation angle (>15°) were generated at higher temperatures. Additionally, abnormal grain growth and coarse grains were detected at high sliding speeds (10 mm/s, 42 mm/s) at 450°C and 500 °C respectively
Finding Poland in Stanis³aw Wyspianski’s Wesele
No full textTowards the end of Stanis³aw Wyspianski’s Wesele (The Wedding), “the Poet”, speaking to the newly married bride describes Poland as something that you can only find in your heart. “A to Polska w³asnie”. The turn of the 19th century in Poland, when this wedding took place, was a very turbulent time in Poland’s history. In 1795, only four years after Poland wrote Europe’s first constitution, the final division of Poland was made by Russia, Prussia and Austria leaving nothing of the former Polish republic. Cracow, part of the Austrian province of Galicia, created a unique place where the ideas of artists, the intentions of politicians and the actions of peasants provided Wyspianski with the atmosphere to write Wesele. Wesele not only makes a commentary on various historical events and local figures, it also gives the reader a sense of “Polishness”
Author-Suggested, Weighted Citation Index: A Novel Approach for Determining the Contribution of Individual Researchers
No full textA novel scientometric index, named ‘author-suggested, weighted citation index’ (Aw-index) is proposed to indicate the scientific contribution of any individual researcher. For calculation of the Aw-index, it is suggested that during the submission of a scholarly article, the corresponding author would provide a statement, agreed upon by all the authors, containing weightage factors against each author of the article. The author who contributed more to the article would secure a higher weightage factor. The summation of the weightage factors of all the authors of an article should be unity. The citation points a researcher receives from a scholarly publication is the product of his/her weightage factor for that article and the total number of citations of the article. The Aw-index of any individual researcher is the summation of the citation points he/she receives for all his/her publications as an author. The Aw-index provides the opportunity to the group of authors of a multi-authored article to determine the quantum of partial citations to be attributed to each of them. Through an illustrative example, a comparison of the proposed index with the major scientometric indexes is presented to highlight the advantages of the Aw-index
Studies of the AA2519 Alloy Hot Rolling Process and Cladding with EN AW-1050A Alloy
No full textThe objective of the study was to determine the feasibility of plastic forming by hot rolling of the AA2519 aluminium alloy sheets and cladding these sheets with a layer of the EN AW-1050A alloy. Numerous hot-rolling tests were carried out on the slab ingots to define the parameters of the AA2519 alloy rolling process. It has been established that rolling of the AA2519 alloy should be carried out in the temperature range of 400-440°C. Depending on the required final thickness of the sheet metal, appropriate thickness of the EN AW-1050A alloy sheet, used as a cladding layer, was selected. As a next step, structure and mechanical properties of the resulting AA2519 alloy sheets clad with EN AW-1050A alloy was examined. The thickness of the coating layer was established at 0,3÷0,5mm. Studies covered alloy grain size and the core alloy-cladding material bond strength
UA1C12 559th AAA (AW) BN Broadside
No full textBroadside of of logo of the 559th AAA (AW) BN with names of company members on one quarter of a sheet of paper. Transcription of notations and signatures:
571st AEA Medical Detachment (Independent) T/5 Chas. Gans (?)
A - Battery 1st Sgt. Bing Miller S/Sgt. B.J. Martin S/Sgt. A. Hawkins S/Sgt. G. Swesnen S/Sgt B. Mallioux S/Sgt. M. Enevald S/Sgt. C. Watts Sgt. F. Glasser Sgt. E. Baseman Sgt. M. Krisan Pfc. Harry Shuler Pfc John Caggiano T/5 Ernest E. Black Pvt. Ed Nestel Cpl. Geo. O. Diamond Pvt. Donald D. Dreyr (?) Pvt. Patsy Lombardo
B - Battery Cpl. Edw. J. Brennan Pvt. Clarence W. Parks Pvt. Sandy Orlando PFC Lewis Morris PFC Albert Koloman Pvt. Sigmund J. Bloom Pfc Cecil Arthur P.F.C. Antony Cornacchio P.F.C. Dorwood R. Bartlam Cpl. Geo. D. Egbert Pvt. Salvatore J. Borzillo PFC Mikey D. Magrone PFC Joseph A. Irrera Pfc Harry C. Wesler Pvt. Harold A. Mordt P.f.C. Jimmie N. Sha___ Pvt. Costello P.F.C. Albert Olson Pvt. Howard Hausenberger Pvt. Walter Steawart Pvt. Larry Cellucci Pvt. Bob Jones Pvt. Mac D. Williams PFC Harry Hermann Cpl. Chas. C. Eaton Pvt. Cellow Quock P.F.C. James R. Adams Cpl. Dan Ferraro
Medics T/5 Ralph A. Lewis Cpl. S. Jakenborusky (?)
(Yard Bird) Pvt. Donald R. Czoka
571st C Btry AAA AW BN.SP T/5 Eugene Richert Pvt. Bernard M. Piker T/5 Andrew McKenzie T/5 Frank Joe Wippel Cpl. Wm. Brackmann
C - Battery P.F.C. Pat Piccirilli P.F.C. Thomas E. Beam P.FC Alvin E. Mann P.F.C. Joseph C. Jenkins Pvt M. Biconopard (?) P.F.C. Delbert R. Harris P.F.C. P.J. (Greek) Christofas P.F.C. J.E. (Perk) Perkinson Pvt. Thomas C. Angelone Cpl. Joseph T. Zabielska Jr. (?) Pfc. Ralph V. Caputo P.F.C. Van Riper Pvt. Charles Fisher Pvt. J.D. (Chick/Chuck) Cocahine (?)
D - Battery Pvt. Don Forestien P.F.C. George P. Saxon Pvt. Jesse Collora Pvt. Bob Anton Cpl. Andy Geckle Pfc. Floyd J. Derkinson (?) Pvt. Charles Cummins CPl Alvin Bortz Pvt. M.W. Robinson Pvt. J.J. White Pvt. M. Kink Pvt. Frank Raniert Sgt. Jeff R. Donnelly Pvt. T. M. De Luca Pvt. Ralph Glazer Pfc. John Gruden Cpl. Howard Friedman P.f.C. Harold Hammond (?) PFC. Ed (Bagels) Puberlidfer (?) Cpl. John J. Nuzzo Pvt. Thomas J. Burns
The 559th American Antiaircraft Artillery (AW) Battalion served in the European theater of World War II
Influence of Process Parameters on the Quality of Aluminium Alloy EN AW 7075 Using Selective Laser Melting (SLM)
No full textAbstractSelective laser melting (SLM) is an additive manufacturing process, forming the desired geometry by selective layer fusion of powder material. Unlike conventional manufacturing processes, highly complex parts can be manufactured with high accuracy and little post processing. Currently, different steel, aluminium, titanium and nickel-based alloys have been successfully processed; however, high strength aluminium alloy EN AW 7075 has not been processed with satisfying quality. The main focus of the investigation is to develop the SLM process for the wide used aluminium alloy EN AW 7075. Before process development, the gas-atomized powder material was characterized in terms of statistical distribution: size and shape. A wide range of process parameters were selected to optimize the process in terms of optimum volume density. The investigations resulted in a relative density of over 99%. However, all laser-melted parts exhibit hot cracks which typically appear in aluminium alloy EN AW 7075 during the welding process. Furthermore the influence of processing parameters on the chemical composition of the selected alloy was determined
Zhedanov's Algebra AW(3) and the Double Affine Hecke Algebra in the Rank One Case. II. The Spherical Subalgebra
No full textThis paper builds on the previous paper by the author, where a relationship between Zhedanov's algebra AW(3) and the double affine Hecke algebra (DAHA) corresponding to the Askey-Wilson polynomials was established. It is shown here that the spherical subalgebra of this DAHA is isomorphic to AW(3) with an additional relation that the Casimir operator equals an explicit constant. A similar result with q-shifted parameters holds for the antispherical subalgebra. Some theorems on centralizers and centers for the algebras under consideration will finally be proved as corollaries of the characterization of the spherical and antispherical subalgebra
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Extensions and amplifications of a traffic model of Aw and Rascle
No full textIn a recent paper [1] Aw and Rascle introduced a new model of traffic on a uni-directional highway. Here the author studies an extension of this model, one which accounts for drivers attempting to travel at their maximum allowable speed. The author looks at a Lagrangian reformulation of this problem; a formulation that leads to an effective computational algorithm for solving the resulting system. He also investigates approximation scheme introduced by Dafermos [5] for scalar conservation laws and demonstrates that this Dafermos scheme works well on this 2 x 2 system
Automating the determination of wave speed using the pu-loop method
No full textThe PU-loop (pressure-velocity loop) is a method for determining wave speed and relies on the linear relationship between the pressure and velocity in the absence of reflected waves. This linearity of the PU-loop during early systole, which is directly related to wave speed, has always been established by eye. This paper presents a new technique that establishes this linearity and thus determining wave speed online. Pressure and flow were measured in the ascending aorta of 11 anesthetised dogs. The slope of the PU-loop, indicating wave speed was determined by eye and by using the new technique. The difference between the slopes of the two methods is in the order of 3%. The new technique is convenient and allows for the online assessment of wave speed, which could be used as a bedside tool for the assessment of arterial compliance
Commodification And Consumerism Ideology In Five StarBillionaire (2013) Novel By Tash Aw
No full textThe aim of the research is to show the readers the portrayal of commodification and consumerism ideology through the characters in Five Star Billionaire (2013) novelby Tash Aw by using Marxist theory. The writer uses qualitative descriptive to achievethe result. All data are collected from the narration in the novel. The portrayal of commodification can be seen through how the characters acttowards the objects or the persons in terms of exchange value and sign-exchange value.It can be seen when Phoebe and Gary are used as commodity that have exchange valueby their boss, when Phoebe is used her fake-branded stuff to give other peopleimpression that she is a bourgeoisie, and when Phoebe use Walter Chao to make shelives in luxury. How Phoebe is commodifying her stuffs leads her to follow theconsumerism ideology.viii.33 hlm.ilus.25.c
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