Student Edition Research Articles

Dynamic and tribological study of a planetary gearbox with local nonlinearities

A planetary gearbox model comprising five spur gears (sun, ring and three planets) and the carrier has been developed and analysed. The influence of gear teeth backlash and friction during mixed regime of lubrication has been taken into consideration. Greenwood and Tripp model is employed, while viscous friction is calculated analytically using the functions of Evans and Johnson. A combined tribodynamics modeling approach has been implemented and modal analysis is performed in order to predict the coupled mechanism of tribological and dynamic behavior, subjected to backlash and excited at the gear meshing frequency. The software used for the simulations is ADAMS MSc (Student Edition), where the model variables (concerning gear geometry and forcing functions) have been added in a parametric way. The results showed that small variations of the dynamic transmission error affect notably the viscous friction through changing the contact load between the engaged teeth pairs. Also, higher values of the Stribeck oil parameter due to higher film thickness or lower surface roughness in the mixed lubrication regime lead to reduction of the boundary friction, whereas a reduction of the total generated friction occurs when increasing the angular velocity of the input gear body (due to higher film thickness and smaller asperity interactions). The above lead to reduced power loss of the mechanism. Finally, a characterization of the system dynamics is presented using the calculated eigenvalues and eigenmodes of the corresponding linearized system. Potential interactions with the gear meshing frequency of the system are also examined.

Annual Report of the Secretary-Treasurer

Annual Report of the Secretary-Treasurer Stephen Berry (bio) Last year's annual meeting in Dallas marked the eighth time the Association has met in Texas and the second time in Dallas (1974). We have also met in Houston (2003, 1985, 1971, and 1957) and in Fort Worth (1999 and 1991). Program Committee chairs Daniel C. Littlefield and Mark M. Smith worked with President John B. Boles and Local Arrangements Committee chair Stephanie Cole to put together a stellar opening plenary on Texas as a demographic, social, and political bellwether for the South. Other notable features of the program included President Boles's retrospective on his thirty-year tenure as editor of the Journal of Southern History; a panel, sponsored by the Committee on Women, Gender, and Sexuality, amusingly titled, "How Many Committees Do I Have to Be On?: Strategies for Professional Advancement"; a roundtable, sponsored by the Committee on Minorities in the SHA, on the long history and future prospects of historically black colleges and universities; and the now traditional "Southern History in the Headlines" panel, which featured Jim Downs, Nell Irvin Painter, Karen L. Cox, and Marjorie J. Spruill and focused on Trumpism, women's rights, guns, and policing in the South. Darlene Clark Hine received a standing ovation in accepting the Association's John Hope Franklin Lifetime Achievement Award on Friday night. In recent years, the Association has also hosted a marquee event on Saturday evening; in Dallas we held a magnificently catered reception at the Sixth Floor Museum, cosponsored by Southern Methodist University and made possible by Stephanie Cole's creativity and fund-raising prowess. She and her committee set a fund-raising record in support of the Dallas meeting, and we should all be very grateful. The strength of both the program and the local arrangements was reflected in a strong number of conferees. Attendance in Dallas was 1,125—a robust showing for a meeting west of the Mississippi River. [End Page 413] The Executive Council convened in Dallas on Wednesday, November 8, and welcomed aboard new Council members Nancy Bercaw, Craig Thompson Friend, and Joseph P. Reidy. Elisabeth Cawthon and Robert Smale joined in their first years as representatives of the European History Section and Latin American and Caribbean Section, respectively. The Council had a relatively short agenda. Topics of note included the adoption of lowered annual membership rates for K–12 teachers ($15) and contingent faculty ($20); the commitment to explore the possibility of a joint meeting with the Western History Association in 2022; and the election of Edward E. Baptist, Gaines Foster, Cherisse Jones-Branch, and Randy J. Sparks to the Nominating Committee. (Lesley J. Gordon will continue over from last year to serve as chair.) During the Council meeting, Journal editor Randal L. Hall reported two welcome developments. First, downloads of Journal content through our new Project Muse portal have been brisk, indicating a solid new revenue stream for the Association. Second, the Rice University history department has arranged to fund a sixth-year graduate student editing fellowship at the Journal; Rice has named the position the Boles Editing Fellow in honor of Journal editor emeritus John B. Boles. The Association is now accepting nominations for one of its most significant awards: the John W. Blassingame Award for distinguished scholarship and/or mentorship in African American history. Committee members are Tera W. Hunter, Princeton University, chair; Raymond Arsenault, University of South Florida, St. Petersburg; and J. William Harris, University of New Hampshire. Letters of nomination should be sent to manager@thesha.org by June 1, 2018. The SHA has upgraded its website, which now features a sleeker design and easier checkout process. Recurring memberships are now available for new members, and current members can switch to recurring to avoid the annual headache of renewal. Members can change their address (see thesha.org/update-your-address), and those who want to save trees or shelf space can now opt for a digital-only subscription to the Journal. The website's more sophisticated administrative backend also allows us to host affiliate websites, including the European History Section (thesha.org/ehs) and the Journal itself (thesha.org/jsh). We are greatly...

The EFSUMB website, a great source for ultrasound information and education.

The aim of this updated EFSUMB-website guide is to introduce readers to EFSUMB's wide ranging activities. The mostrecent are the guidelines on interventional ultrasound and intestinal ultrasound and updated CEUS Non-Liver and ElastographyLiver Guidelines which can be freely downloaded. Hosting eBooks on our website is another new departure, most importantlythe EFSUMB Course Book on Ultrasound available in a second edition as an eReader and an online Student Edition ofthe ECB. EFSUMB has been active with updating Guidelines; those mentioned above have all been revised or written in thelast two years. Webinars have been introduced and participation is possible online but can be reviewed later along with recentrecordings of Euroson Schools. The EFSUMB Newsletter in the EJU promotes our activities and topical articles intended toreach all our members with the online version hosted on our website. The Case of the Month continues to be one of EFSUMB'smost visited sites and in the last few years has been translated into 14 different languages including Chinese. In conclusion, thisarticle aims to provide an updated guide to the website educational sites of the European Federation of Societies for Ultrasoundin Medicine and Biology (EFSUMB).

Reconfigurable SRTM System for Road Traffic in Kingdom of Bahrain

Abstract This paper presents reconfigurable hardware architecture for smart road traffic system based on Field Programmable Gate Array (FPGA). The design can be reconfigured for different timing of the traffic signals according to the received and collected data read by the different sensors on the road; the design has been described using VHDL (VHSIC Hardware Description Language). The SRTM (Smart Road Traffic Management) System has some more features that help passenger to avoid traffic jamming by sending the collected information through web/mobile applications to find the best road between the start and destination points, which will be displayed on Google maps, at the same time it will also shows the points of traffic jamming on Google maps. SRTM system can also manage emergency vehicles such as ambulance and fire fighter and also can send snapshots and video streaming for different roads and junctions to show the points of traffic jamming. The design has been simulated and tested using ModelSim PE student edition 10.4. Spartan 3 FPGA starter kit from Xilinx has been used for implementing and testing the design in a hardware level.

Use of the student edition of ACTRAN in acoustics education

The power of computation has changed the way problems are solved in acoustics, and students should be trained to have an adequate background in modern techniques and software packages to simulate noise and vibration. Universities often cannot provide industrial-grade packages for their students due to the cost limitations. But recently a student version of a modern acoustics computation package was released, Student Edition of ACTRAN. This tool lets students solve a wide variety of problems using finite elements and infinite elements. This talk will describe the software and how it was used in a graduate level course in computational acoustics. Two examples that will be shown include finding the modes of an irregularly shaped room and computing the acoustic radiation from a gearbox. But it is clear that this software can be used in many different ways, for both undergraduate and graduate acoustics education. Instructors can demonstrate acoustical phenomena for students not adept at using the software themselves, easily visualizing the physics involved in acoustics with the Student Edition of ACTRAN. The software is free for downloading from http://www.mscsoftware.com/page/actran-student-edition.

Federal Tax Procedure (Student Ed. 2016)

Federal Tax Procedure is the book for originally prepared for a course on Tax Procedure taught by Adjunct Professor Townsend at the University of Houston School of Law (through the Fall of 2015). The book and related materials contain text discussion, relevant Code Sections, and certain cases designed to encourage students to think about the Tax Procedure process. This is the book only. The related materials are on the Federal Tax Procedure Blog. The book is in electronic format (Adobe Acrobat PDF format) and is in two versions -- (1) a student edition (no footnotes); and (2) a practitioner edition (same as student edition but including the footnotes). This is the student edition. Both versions are available free on Mr. Townsend's Scholarly Papers page on SSRN. Mr. Townsend's practice is to update the PDF once a year in August to permit the book to be used in the academic year. Additional matters related to the book may be found on Mr. Townsend's Federal Tax Procedure Blog.

Federal Tax Procedure (2016 Practitioner Ed.)

Federal Tax Procedure is the book for originally prepared for a course on Tax Procedure taught by Adjunct Professor Townsend at the University of Houston School of Law (through the Fall of 2015). The book and related materials contain text discussion, relevant Code Sections, and certain cases designed to encourage students to think about the Tax Procedure process. This is the book only. The related materials are on the Federal Tax Procedure Blog. The book is in electronic format (Adobe Acrobat PDF format) and is in two versions -- (1) a student edition (no footnotes); and (2) a practitioner edition (same as student edition but including the footnotes). This is the practitioner edition.

In Memoriam: Dr. Clive L. Dym (1942–2016)

In Memoriam: Dr. Clive L. Dym (1942–2016)

Development and friction estimation of the Half-Toroidal Continuously Variable Transmission: A wind generator application

This paper presents the modeling and the computer simulation of a continuously variable transmission (CVT), applicable to a (2kWatt power) wind turbine, as well as the evaluation of the suggested mechanism. Transmission in conventional wind turbines offers a constant ratio, as a result the rotational speed of the generator's shaft varies depending on the wind speed, so the generator usually operates at lower rpm than registered, leading to low power output. In contrast, wind turbines equipped with a CVT system offer a wider range of the power generator's shaft speed.The proposed mechanism is expected to provide a constant output shaft speed for any wind speed, maximizing the power produced. Furthermore, it is expected that the system will be able to collect more energy than conventional wind turbines and wind turbines equipped with CVT do, starting from a lower wind speed. This paper describes the operating principle of the proposed mechanism, followed by the mechanical designs of the individual components. Dynamical and Frictional Analysis of the proposed mechanism and its components are presented. The modeling of the CVT was performed using CATIA, and simulation carried out using the MSC Adams 2013 student edition.

T’es branché? by Geneviève Desdevises Delfosse, Diana I. Moen

Reviews 187 Desdevises Delfosse, Geneviève, and Diana I. Moen. T’es branché? St. Paul, MN: EMC, 2014. ISBN 978-0-82196-661-7. Pp. 602. $89. This textbook is designed for use in an AP course, but it is also suitable for fourthyear courses. Its six units and eighteen essential questions address the global themes that correlate to the AP exam themes and highlight Francophone cultures, literatures, and history.With a focus on ACTFL’s World Readiness Standards for Learning Languages objectives and interdisciplinary themes, T’es branché? promotes critical thinking and multiple literacies skills that are vital to successful global citizens. To support the alignment of World Readiness Standards with the Common Core Standards, the book provides an extensive grid that correlates unit activity outcomes to the standards. The Teacher’s Resources DVD contains textbook audio and scripts, workbook, and assessment manual.The instructor’s print edition provides additional communicative activities, games, technology integration suggestions, connections to cross-curricular subjects, references to Francophone culture and history, critical thinking examples, expansion options, and importantly,“Focus on AP”topics that help prepare students for the oral cultural comparison section on the exam. These key features are recent, relevant, and provide multicultural perspectives. Each of the six units is divided into three lessons. Unit learning objectives are presented in the“I can”NCSSFL/ACTFL global benchmark model. Each lesson’s structure follows the same design: Unit Opener, Vocabulaire actif, Narratives (audio and print interviews, blog posts, articles), Culture (tied to Narratives and unit theme), Structure de la langue (new and review grammar topics), À vous la parole (proficiency-based activities), Lectures thématiques (poems, songs, literary excerpts), Faisons le point (review of lesson theme and content), and Vocabulaire (endof -unit vocabulary list). This can become formulaic, but teachers are given options to vary the lessons and students know what to expect for each lesson. Reading selections encompass modern and classic Francophone literary excerpts, informational and cultural texts from the six themes, with guided supports and strategies to develop confident readers who can comprehend a variety of text types. The visuals in the book are current, attractive, and multicultural. However, the preponderance of cartoon images and text, along with a paucity of infographics, graphic organizers, and pagedesign variety, give the impression of a traditional text-laden book. Student editions are available in both print and e-book versions that are accessible on laptops and mobile devices.EMC’s website offers extensive support for both students and instructors, but it is not included in the basic adoption package. Passport, the web- and app-based learning platform, offers several components for e-assessments, feedback, student portfolios, project-based learning, performance-based tasks, and customized and preloaded tasks. Flipgrid allows instructors to create shared video prompts which students view and to which they reply from their phones, tablets, or computers. Additionally, iCulture videos provide engaging songs, news, and documentary-style videos for Francophone exposure beyond the classroom and textbook experience. Despite the text-heavy design, the overall attention to AP requirements, as well as current language learning philosophies, practices, and resources, provide the teacher and learner with a solid textbook and AP option. Mount Vernon High School (WA) Catherine Ousselin Fuchs, Catherine. La comparaison et son expression en français. Paris: Ophrys, 2014. ISBN 978-2-7090-1409-1. Pp. 208. 18 a. Belonging to the collection L’essentiel français, this text provides an informative in-depth but manageable study of the forms and functions of the comparison in contemporary French linguistic practice. The author has organized her study across two parts containing six chapters and an introductory chapter in total. Written in an accessible style, Fuchs’s book guides the reader through a vast range of categories for uses of the comparison: “l’inégalité,” “l’égalité,” “la prévalence,” “la préférence,” “l’alternative résolue,”“la similarité,”“l’analogie,” and “l’identité.” To provide a richer sense of the scope and organization of this volume, I cite a few chapter titles and headings: “Diversité des schémas d’(in)égalité,” “Le schéma canonique d’(in)égalité: la gradation [les configurations],” “la comparaison valuative,” and “la comparaison similative.”Before attacking these...

Edward II with Related Texts by Christopher Marlowe

Reviewed by: Edward II with Related Texts by Christopher Marlowe Andrew Fleck Christopher Marlowe, Edward II with Related Texts, ed. Stephen J. Lynch (Indianapolis: Hackett 2015) xiv + 156 pp. Christopher Marlowe’s tragedy, Edward II, has enjoyed great popularity in the classroom over the last few decades. The play offers teachers of early modern literature the most overt example of homoerotic attraction in the canon. It also repays other kinds of historicist work as well. And it provides a strong counterexample that helps to combat the privileging of Shakespeare on syllabi treating early modern theater and culture; juxtaposing the play with Richard II often helps to open student readers’ eyes to the value of picking up the work of Shakespeare’s contemporaries. Since Marlowe’s play can be found in a variety of modern anthologies and editions, it is worth wondering what another edition of the play might offer to classrooms. Stephen J. Lynch’s new edition for Hackett, Edward II with Related Texts, modernizes the spelling and standardizes the textual accidents, succinctly introduces and contextualizes the tragedy, and appends some useful source and contextual material that might entice undergraduates to historicize the tragedy and its themes. All in all, Lynch offers a usable and affordable classroom edition of Marlowe’s contribution to the Elizabethan history play. Lynch offers three sorts of preliminary material in his edition. He begins with a biographical sketch of Marlowe repurposed from an earlier edition of Marlowe, his Jew of Malta, also for Hackett. Lynch follows this biographical material with a very helpful introduction to Edward II, arranged according to [End Page 305] prominent themes in the tragedy. Most of these return to the nature of Edward’s relationship with his “minion” Gaveston and how the presentation of this obliquely homoerotic connection might structure the play. In addition to this transgressive relationship and its contrast with the queen’s adulterous relationship with Mortimer, the introduction does take up other more overtly political themes in the tragedy, particularly concerning the unruly nobles who chafe at the tyranny of their distracted monarch. Throughout this helpful introduction, Lynch directs his readers to portions of the “Related Texts” included later in the volume that help to illustrate Elizabethan concerns with these topics. The introductory material concludes with a bibliography (current through 2010) and a discussion of Lynch’s editorial practice. Lynch puts his view of the text into practice in a thoroughly annotated, modernized edition of the tragedy. He bases this edition on the first extant printed version of the play, from 1594 (STC 17437), but he does not indicate that he made any use of the derivative 1598 quarto or other early editions. Delving into the putative 1593 edition or mentioning Gaveston’s prominence on the 1598 title page, not to mention the allusion to a revival on the 1622 title page, might be a little recherché for a student edition. The text he offers to readers is usually quite readable. Brief glosses of archaic terms appear in the margins. For longer notes, Lynch provides footnotes with a wealth of information. Some notes offer simple definitions of technical terms, as when Lynch defines the political meaning of a “Protector” (5.2.12) as “a legal title for a lord selected to rule on behalf of a young king” (80). Other notes paraphrase syntactically convoluted lines, as the gloss of “We’ll steel it on their crest and poll their tops” (3.2.27) as “‘We will strike their helmets (with steel swords) and cut off their heads’” (49). Several notes offer helpful clarifications of classical allusions that our students may not recognize, such as “the Cyclops’ hammers” (1.4.313). Still other notes direct readers to Marlowe’s adaptation of his source material or his invention of material that Holinshed omits. Some readers may find a few of the notes intrusive, as when the editor instructs the reader that “Like Isabella, Mortimer misrepresents and exaggerates. Kent did indeed join the queen’s rebellion, but Kent returned his loyalty to Edward before the king was captured and imprisoned (see 4.6.1–18)” (83). But, in general, these notes and glosses will be quite helpful to undergraduates. The final...

Wastewater Treatment Systems: Modelling, Diagnosis and Control

This is a book for those operating and studying biological wastewater treatment plants.It introduces the state-of-the-art in process systems analysis (modelling and simulation, monitoring and diagnosis, process control and instrumentation) and in particular its application to wastewater treatment.While the emphasis is on biological nutrient removal, there is discussion of anaerobic treatment, and the principles apply to any treatment process. For the computer literate there is also a collection of MATLAB programs and functions that are mentioned throughout the book. They will run on both the professional and student editions of MATLAB Version 5.ISBN: 9781900222150 (Print)ISBN: 9781780402864 (eBook)

Federal Tax Procedure - Student Edition

Federal Tax Procedure is the book for a course on Tax Procedure taught by Adjunct Professor Townsend at the University of Houston School of Law. The book and related materials contain text discussion, relevant Code Sections, and certain cases designed to encourage students to think about the Tax Procedure process. The book is in electronic format (Adobe Acrobat pdf format) and is in two versions -- (1) a student edition (no footnotes); and (2) a practitioner edition (same as student edition but including the footnotes). Both versions are available free on Mr. Townsend's Scholarly Papers page on SSRN. The pdf versions are updated every summer for use in that year's Fall class and sometimes again in January or February. Additional matters related to the book may be found on Mr. Townsend's Federal Tax Procedure Blog

Federal Tax Procedure - Practitioner Edition

Federal Tax Procedure is the book for a course on Tax Procedure taught by Adjunct Professor Townsend at the University of Houston School of Law. The book and related materials contain text discussion, relevant Code Sections, and certain cases designed to encourage students to think about the Tax Procedure process. The book is in electronic format (Adobe Acrobat pdf format) and is in two versions -- (1) a student edition (no footnotes); and (2) a practitioner edition (same as student edition but including the footnotes). Both versions are available free on Mr. Townsend's Scholarly Papers page on SSRN. The pdf versions are updated every August for use in that year's Fall class and sometimes again in January or February. Additional matters related to the book may be found on Mr. Townsend's Federal Tax Procedure Blog.

Design and FPGA Synthesis of Three Stage Telecommunication Switching in HDL Environment

Abstract Telecommunication networks are based on crossbar switching structure. Non-blocking crossbar switching structure is used crosspoint switch fabric ICs. High performance non-blocking matrixes cross point switches are use to avoid the congested path to the output, and eliminate the bandwidth problem of one at a time. Telecommunication switching uses multistage crossbar switching to overcome the limitations of individual chips or boards. The research paper focuses on the FPGA implementation of 64 × 64 three stage telecommunication switching. The generic architecture scheme is followed to implement 64 × 64 three stage network configuration, with 64 inlets and 64 outlets as cluster size. The design is developed with the help of Xilinx ISE 14.2, software, synthesized on Virtex- 5 FPGA, and function simulation is carried out in Modelsim 10.1b student edition. Very High Speed Integrated Circuit Hardware Description Language (VHDL) is used to develop the design.

Numerical analysis on influence of principal parameters of topography on hillslope instability in a small catchment

This study was conducted to identify the influence of three principal parameters constituting topography (slope inclination, soil depth, and slope length) on hillslope instability in a small catchment, known as Higashifukubegawa of Shikoku Island, western Japan. The typhoon rainfall of 19–20 October 2004 was significant in causing a total of seven slope failures in the catchment, though other rainfall events of various intensities in the same year did not cause failure. To understand the influence of the three principal parameters, numerical modeling of seepage and slope stability was performed in slope profiles constructed by varying the three parameters across their permissible range prepared from the seven slope failures of Higashifukubegawa in GeoStudio (GeoStudio Tutorials includes student edition lessons, Geo-Slope International Ltd., Calgary, 2005 v.4). The change in porewater pressure and slope mass weight due to variation in values of principal parameters was used to interpret the change in factor of safety or instability. The results showed that (1) instability increases with increase in the values of all three selected parameters across their range in Higashifukubegawa with remarkable decreasing trend in factors of safety, (2) slope inclination and soil depth were observed to affect instability through change in both unsaturated zone moisture content and mobilizing force of slope mass, (3) but with slope length, the unsaturated zone moisture content was not found to change considerably which implies that the instability due to slope length is mainly governed by change in slope mass weight. Overall, this study has dealt in great detail with how hillslope instability changes with principal parameters of topography under the same simulating conditions of hydrological and geo-mechanical parameters.

Using scaffolded self-editing to improve the writing of signing adolescent deaf students.

The authors investigated the impact of the Deaf Student Editing Rubric (DSER) as a self-editing tool on the writing performance of prelingually profoundly deaf adolescent students whose first language is American Sign Language. The DSER was developed by the first author. The study participants included 15 Deaf students in 4 classrooms in grades 7-12. Writing samples were analyzed for all students, and the level of rubric use was assessed. Eight of the students were interviewed about their use of the DSER. Although all students in the sample increased their mean scores in word choice, sentence fluency, and conventions, results indicated that only the interviewed group showed significant improvement in their writing. Students' writing performance indicated that the DSER was most effective when students talked with an adult about their use of the rubric.

Lessons on Writing, Collaboration, and Empathy

One student's experience cowriting and editing a book helped him see himself and his classmates differently.

Designing Of Pipelined Architecture of Arithmetic Core and Analysis of Area and Timing Performance

The aim of this paper is designing of pipelined architecture of arithmetic core and analysis of area and timing performance of that arithmetic core consisting of fixed point as well as floating point arithmetic cores. The basic concept behind designing such a core is to optimally utilize the algorithms of fixed point as well as floating point arithmetic operations, i.e., addition, subtraction division and multiplication and to enhance the operational speed of these calculations along with comparing a better technique out of fixed and floating point techniques to choose one of them for implementing in future. For this purpose, the arithmetic core is divided into two parts, namely, fixed point arithmetic core and floating point arithmetic core. Both the fixed point as well as floating point cores are sub-divided into four parts which are basically the mathematical operations, i.e., addition, subtraction, multiplication and division. In this Research paper, we discuss the fixed point arithmetic core. The simulation has been carried out on Modelsim (Student edition) EDA tool 10.0c.

Contribution to the Newsletter

Hosting eBooks on our website has been introduced a few years ago and includes the EFSUMB Course Book on Ultrasound (ECB), among others which have also been published in a printed format and the online EFSUMB Course Book Student Edition (ECBSE) which has been launched at EUROSON 2013 in Stuttgart. The ECB has been published on the new Educational Portal (http://www.efsumb-portal.org/ep). Additionally, examination technique videos are available [www.efsumb.org][http://www.efsumb-portal.org/ep/category.php?id=152]. Most importantly, eBook information can be updated and this is important in what is one of the most rapidly advancing fields of medicine.