Relevant bibliographies by topics / Clegg

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Clegg'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 June 2025

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Journal articles on the topic "Clegg"

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Milroy, P. "John Clegg." British Journal of Sports Medicine 37, no. 1 (2003): 3. http://dx.doi.org/10.1136/bjsm.37.1.3.

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Hinton, Russell. "Corporal Clegg." British Journal of Psychiatry 211, no. 1 (2017): 30. http://dx.doi.org/10.1192/bjp.bp.117.198606.

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Han, Hai Jun, Dong Dong Li, and Li Jiang Guo. "Prediction of Solubilities for the Salt-Water System CaCl2-KCl-H2O at 348.15 K." Advanced Materials Research 1044-1045 (October 2014): 83–87. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.83.

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Pitzer-Simonson-Clegg model was used to simulate the properties of the ternary system CaCl2−KCl−H2O. The Pitzer-Simonson-Clegg binary parameters and mixture parameters for the titled system at 348.15 K were obtained from the reliable experimental osmotic and solubility data. The solubility isotherms of the titled three ternary system were predicted by Pitzer-Simonson-Clegg model and compared with the available experimental data, the agreement is generally good. The solubility isotherms for the titled system CaCl2−KCl−H2O at 348. 15 K were predicted using Pitzer-Simonson-Clegg model.
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Crawford, Megan. "Sir Alec Clegg." Education 3-13 36, no. 2 (2008): 101–2. http://dx.doi.org/10.1080/03004270801994764.

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Brighouse, Tim. "Sir Alec Clegg." Education 3-13 36, no. 2 (2008): 103–8. http://dx.doi.org/10.1080/03004270801994772.

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Atkinson, R. E. "Edmund Clegg Atkinson." BMJ 340, mar05 1 (2010): c1288. http://dx.doi.org/10.1136/bmj.c1288.

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Jovin, Thomas M. "Remembering Robert Clegg." Cytometry Part A 83, no. 9 (2013): 765–66. http://dx.doi.org/10.1002/cyto.a.22337.

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Jaffar, Syed Taseer Abbas, Malik Muneeb Abid, Sikander Zaman Khan, et al. "Evaluation of Conventional and Sustainable Modifiers to Improve the Stiffness Behavior of Weak Sub-Grade Soil." Sustainability 14, no. 5 (2022): 2493. http://dx.doi.org/10.3390/su14052493.

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The paper focuses on the improvement of the clayey soil (A-6) with the locally available and cheap modifiers, in terms of stiffness behavior of the weak subgrade soil for flexible pavement. The modifiers used include lime (hydrated), marble waste and sand. The soil specimens underwent triaxial testing and Clegg impact testing. Triaxial testing involved the assessment of the resilient modulus (MR) and impact testing using the Clegg Impact Hammer. According to the study, lime proved to be the most influencing modifier as it improves the stiffness of the weak soil better than other modifiers. A quite accurate statistical relationship between the MR and the variables (including Clegg Impact) involved in the testing procedure has been established
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de Villiers, Marguerite. "Johnny Clegg: a shadow man." Anthropology Southern Africa 39, no. 1 (2016): 58–63. http://dx.doi.org/10.1080/23323256.2016.1155964.

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Shenkar, Oded. "Rejoinder to Clegg and Higgins." Organization Studies 10, no. 1 (1989): 117–22. http://dx.doi.org/10.1177/017084068901000107.

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This paper is a response to criticism raised by the 'radical' school against an 'orthodox' science of organizations. By focussing the debate on an empirical case used by the 'radicals', that of Chinese organizations during the Cultural Revolution, the paper rejects the 'radical' argument as having no empirical support. A 'radical fallacy' which attempts to delegitimize macro-organizational analysis outside the Marxist framework is highlighted.
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Dissertations / Theses on the topic "Clegg"

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Reese, Garth B. "Use of the Clegg Impact Soil Tester to Access Rutting Susceptiblity of Cement-Treated Base Material Under Early Trafficking." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/894.

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In order to avoid the occurrence of early-age damage, cement-treated base (CTB) materials must be allowed to cure for a period of time before the pavement can be opened to traffic. Trafficking of a CTB before sufficient strength gain has occurred can lead to marring or rutting of the treated layer. The specific objectives of this research were to examine the correlation between Clegg impact values (CIVs) determined using a heavy Clegg impact soil tester and rut depths measured in newly constructed CTB and subsequently establish a threshold CIV at which rutting should not occur.The experimental work included field testing at several locations along United States Highway 91 near Smithfield, Utah, and laboratory testing at the Brigham Young University (BYU) Highway Materials Laboratory. In both the field and laboratory test programs, ruts were created in CTB layers using a specially manufactured heavy wheeled rutting device (HWRD). In the field, ruts caused by repeated passes of a standard pickup and a water truck were also evaluated. The collected data were analyzed using regression to identify a threshold CIV above which the CTB should not be susceptible to unacceptable rutting. From the collected data, one may conclude that successive wheel passes each cause less incremental rutting than previous passes and that CTB similar to the material tested in this research should experience only negligible rutting at CIVs greater than about 35. The maximum rut depth measured in either field or laboratory rutting tests was less than 0.35 in. in this research, probably due to the high quality limestone base material utilized to construct the CTB. In identifying a recommended threshold CIV at which CTB layers may be opened to early trafficking, researchers proposed a maximum tolerable rut depth of 0.10 in. for this project, which corresponds to a CIV of approximately 25. Because a CIV of 25 is associated with an acceptably minimal rut depth even after 100 passes of the HWRD, is achievable within a reasonable amount of time under normal curing conditions, and is consistent with earlier research, this threshold is recommended as the minimum average value that must be attained by a given CTB construction section before it can be opened to early trafficking. Use of the proposed threshold CIV should then ensure satisfactory performance of the CTB under even heavy construction traffic to the extent that the material properties do not differ greatly from those of the CTB evaluated in this research.
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Reese, G. Benjamin. "Use of the heavy Clegg impact soil tester to assess rutting susceptiblity of cement-treated base material under early trafficking /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1831.pdf.

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Gasperoni, Samuele. "Studio di un algoritmo di controllo di temperatura per ganasce termosigillanti in macchine per packaging." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9715/.

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Gli obiettivi dell'elaborato sono lo studio e la programmazione di un algoritmo di controllo di temperatura per le superfici termosaldanti di macchine per il packaging (confezionatrici in film a file multiple) prodotte dal committente, OMAG srl. L'algoritmo è implementato tramite il software SoMachineMotion v.4.2, prodotto da Schneider Electrics spa. Il controllo è di tipo in anello chiuso in retroazione, con temocoppie e resistenze di riscaldamento con modulazione PWM. Ci si è inizialmente occupati di testare su banco prova varie tipologie di regolatori: a relay, a isteresi, a ricerca diretta del duty cycle, TBH, con approccio misto TBH/integratore di Clegg, PID. I diversi metodi di regolazione sono stati valutati sulla base di una serie di metri di giudizio (precisione dell'inseguimento, prestazioni statiche e dinamiche, flessibilità, peso computazionale, facilità implementativa), pesati secondo i requisiti imposti dal committente. Le metodologie selezionate sono state PID e TBH/Clegg integrator; quest'ultima ha dato risultati assai soddisfacenti, pur essendo un metodo monoparametrico. Si sono quindi studiate diverse modalità per la taratura del regolatore PID, in particolare: tuning in anello chiuso con metodo a relay per la fase di pretuning, algoritmo di Nelder-Mead, per la ricerca diretta continua dei valori che minimizzano l'errore integrale, per un selftuning adattivo. Si è infine proceduto ad implementare le soluzioni individuate in un software robusto, che rispetti gli standard del settore e si sono inoltre sviluppate una serie di funzionalità aggiuntive, quali: modulazione software PWM, preriscaldamento, handling errori/warning, filtraggio segnali in/out. Si è addizionalmente sviluppato un modello matematico predittivo dell'evoluzione del sistema, che potrebbe servire, in un futuro sviluppo, come base per un controllo model-based in cascata al controllo in retroazione studiato.
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Schneider, Brianna Allysia. "The Effects of Sand Shape and Turf Type on the Playing Quality of a Hybrid Turf System." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563227479044356.

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Montanhini, Lúcia Regina Assumpção. "Comportamento geotécnico de solos da rodovia BR-476, trecho: Lapa - São Mateus do Sul (PR) e equação de correlação entre os valores CBR e CIV (Clegg Impact value) para solos da região." Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/85635.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.<br>Made available in DSpace on 2012-10-20T20:57:17Z (GMT). No. of bitstreams: 0Bitstream added on 2013-07-16T19:23:59Z : No. of bitstreams: 1 247691.pdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Este estudo tem como objeto a avaliação do equipamento Clegg Hammer e a adequabilidade de utilização do mesmo como medida complementar aos ensaios CBR. O estudo apresenta uma análise do comportamento apresentado para os solos da região compreendida pela rodovia BR-476, trecho Lapa - São Mateus do Sul no Estado do Paraná. São enfatizados os comportamentos destes solos no que diz respeito a avaliação para fins rodoviários buscando enfocar peculiaridades que possam intervir no resultado dos ensaios CBR e Clegg Hammer. Como contribuição principal deste estudo está a determinação da formulação matemática de ajuste que permita estabelecer a correlação, mediante análise de regressão, dos valores resultantes para os ensaios CBR e Clegg Hammer, definida pela a equação de correlação entre os valores CBR e CIV (Clegg Impact Value). The object of this study is to evaluate the Clegg Hammer equipment and to adapt the utilization of the same as complemental measure to the CBR tests. The study presents an analysis of the behavior presented for the soils of the area understood by the highway BR-476, segment Lapa - São Mateus do Sul in the State of Paraná. The behaviors of these soils are emphasized in relation of the evaluation for roads looking for to focus peculiarities that can intervene in the result of the CBR and Clegg Hammer tests. As main contribution of this study is the determination of the mathematical formulation of adjustment that allows to establish the correlation, by regression analysis, of the resulting values for the CBR and Clegg Hammer tests, defined for the correlation equation among the values CBR and CIV (Clegg Impact Value).
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Schröders, Sebastian J. [Verfasser], Sandra [Akademischer Betreuer] Korte-Kerzel, and W. J. [Akademischer Betreuer] Clegg. "Plasticity of topologically close packed phases : characterisation from high temperature to high resolution in a case study of the Fe$_7}$Mo$_6}$-µ-phase / Sebastian J. Schröders ; Sandra Korte-Kerzel, W. J. Clegg." Aachen : Universitätsbibliothek der RWTH Aachen, 2018. http://d-nb.info/1181108780/34.

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Young, Tyler B. "Early Age Assessment of Cement Treated Materials." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/885.

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In order to avoid the occurrence of early-age damage, cement-treated base (CTB) materials must be allowed to cure for a period of time before the pavement can be opened to traffic. The purpose of this research was to evaluate the utility of the soil stiffness gauge (SSG), heavy Clegg impact soil tester (CIST), portable falling-weight deflectometer (PFWD), dynamic cone penetrometer, and falling-weight deflectometer for assessing early-age strength gain of cement-stabilized materials. Experimentation was performed at four sites on a pavement reconstruction project along Interstate 84 near Morgan, Utah, and three sites along Highway 91 near Richmond, Utah; cement stabilization was used to construct CTB layers at both locations. Each site was stationed to facilitate repeated measurements at the same locations with different devices and at different curing times. Because of the considerable attention they have received in the pavement construction industry for routine quality control and quality assurance programs, the SSG, CIST, and PFWD were the primary focus of the research. Statistical techniques were utilized to evaluate the sensitivity to curing time, repeatability, and efficiency of these devices. In addition, the ruggedness and ease of use of each device were evaluated. The test results indicate that the CIST data were more sensitive to curing time than the SSG and PFWD data at the majority of the cement-treated sites during the first 72 hours after construction. Furthermore, the results indicate that the CIST is superior to the other instruments with respect to repeatability, efficiency, ruggedness, and ease of use. Because the CIST is less expensive than the SSG and PFWD, it is more likely to be purchased by pavement engineers and contractors involved with construction of CTBs. For these reasons, this research suggests that the CIST offers greater overall utility than the SSG or PFWD for monitoring early-age strength gain of CTB. Further research is needed to identify appropriate threshold CIST values at which CTB layers develop sufficient strength to resist permanent deformation or marring under different types of trafficking.
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Hope, Charles A. "Evaluation of Portable Devices for Monitoring Microcracking of Cement-Treated Base Layers." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2965.

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A relatively new method used to reduce the amount of cement-treated base (CTB) shrinkage cracking is microcracking of the CTB shortly after construction. Three portable instruments used in this study for monitoring the microcracking process include the heavy Clegg impact soil tester (CIST), portable falling-weight deflectometer (PFWD), and soil stiffness gauge (SSG). The specific objectives of this research were 1) to evaluate the sensitivity of each of the three portable instruments to microcracking, and 2) to compare measurements of CTB stiffness reduction obtained using the three devices. The test locations included in this study were Redwood Drive and Dale Avenue in Salt Lake City, Utah; 300 South in Spanish Fork, Utah; and a private access road in Wyoming. Experimental testing in the field consisted of randomized stationing at each site; sampling the CTB immediately after the cement was mixed into the reclaimed base material; compacting specimens for laboratory testing; and testing the CTB immediately after construction, immediately before microcracking, immediately after each pass of the vibratory roller during the microcracking process, and, in some instances, three days after microcracking. Several linear regression analyses were performed after data were collected using the CIST, PFWD, and SSG during the microcracking process to meet the objectives of this research. Results from the statistical analyses designed to evaluate the sensitivity of each of the three portable instruments to microcracking indicate that the PFWD and SSG are sensitive to microcracking, while the CIST is insensitive to microcracking. Results from the statistical analyses designed to compare measurements of CTB stiffness reduction demonstrate that neither of the instrument correlations involving the CIST are statistically significant. Only the correlation between the PFWD and SSG was shown to be statistically significant. Given the results of this research, engineers and contractors should utilize the PFWD or SSG for monitoring microcracking of CTB layers. The heavy CIST is unsuitable for monitoring microcracking and should not be used. For deriving target CTB stiffness reductions measured using either the PFWD or SSG from specified targets measured using the other, engineers and contractors should utilize the correlation chart developed in this research.
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Quick, Tyler James. "Temporal and Spatial Variability in Base Materials Treated with Asphalt Emulsion." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2715.

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The first objective of this research was to investigate temporal trends in the mechanical properties of base materials stabilized with asphalt emulsion and to assess the rate at which emulsion-treated base (ETB) design properties are achieved. The second objective of this research was to identify construction and environmental factors most correlated to specific mechanical properties of ETB layers and to determine which construction factors exhibit the greatest variability. Additional statistical analysis was performed to determine if significant differences existed between different test sections on a given project. In this research, three experimental sections were established along a pavement reconstruction project near Saratoga Springs, Utah. Field tests were performed to assess the structural properties of the ETB immediately following construction and at 2, 3, 7, and 14 days; 4 months; and 1 year. Measured values were plotted against time to determine trends in ETB strength development. Several statistical analyses were then performed on the collected data. Modulus values were consistently low in all three sections during the first two weeks of testing, increased dramatically by 4 months, and then decreased considerably by 1 year. During the first two weeks following construction, the average ETB structural coefficient was 0.04. Only two of the three sections reached the design structural coefficient of 0.25, which occurred after approximately 3 months; however, the average structural coefficient measured for all three sections after 1 year of curing, which included a winter, was only 47 percent of the design strength. The results of this research show that, while pavement capacity is sufficient at 4 months, it is severely reduced during the first two weeks and at 1 year. Trafficking under these reduced capacities is not recommended. Statistical analysis showed that gradation, binder change during emulsion treatment, and moisture content have the most significant impact on ETB structural properties. Gradation and binder change during emulsion treatment also exhibited significant variability; tighter specifications on material gradations and improved uniformity in emulsion distribution should therefore be considered. Because of the negative impacts of moisture on ETB strength development, construction should not be performed in conditions of excess moisture.
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Thomson, Robert Campbell Kennedy. "The life history and ecology of the common cleg, Haematopota pluvialis, in the West of Scotland." Thesis, University of Edinburgh, 1986. http://hdl.handle.net/1842/14534.

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Books on the topic "Clegg"

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Clegg, Oliver, and Matt Price. Oliver Clegg. Anomie Publishing, 2016.

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Clegg & Guttmann. and CAPC Musée d'art contemporain de Bordeaux., eds. Clegg & Guttmann. Le Muśee, 1989.

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Michael, Clegg, Guttmann Martin, and Israel Museum, eds. Clegg & Guttmann. Israel Museum, 1987.

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Lee, Simon, and Matt Beech, eds. The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014.

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Clegg & Guttmann., Württembergischer Kunstverein, and Giancarlo Politi editore, eds. Clegg & Guttmann, collected portraits. Württembergischer Kunstverein Stuttgart, 1988.

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Clegg & Guttmann. Museum for the workplace: Clegg und Guttmann. Lindinger + Schmid, 1998.

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Conrath, Philippe. Johnny Clegg: La passion zoulou. Le Club des stars, 1988.

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Clegg, Kay. AE Clegg: A granddaughter's view. Kay Clegg, 2011.

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Supplee, Audra. I almost love you, Eddie Clegg. Peachtree, 2004.

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Clegg, Michael. Clegg & Guttmann: Einzel-, doppel. und gruppenportraits. Galerie Lohrl am Abteiberg, 1985.

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Book chapters on the topic "Clegg"

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McDonald, Jo, and Kate Sullivan. "Clegg, John K." In Encyclopedia of Global Archaeology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_2154.

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McDonald, Jo, and Kate Sullivan. "Clegg, John K." In Encyclopedia of Global Archaeology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-51726-1_2154-2.

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McDonald, Jo, and Kate Sullivan. "Clegg, John K." In Encyclopedia of Global Archaeology. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-0465-2_2154.

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Lee, Simon. "‘We Are All in This Together’: The Coalition Agenda for British Modernization." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_1.

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Norton, Philip. "The Con-Lib Agenda for the ‘New Politics’ and Constitutional Reform." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_10.

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Aughey, Arthur. "The Con-Lib Coalition Agenda for Scotland, Wales and Northern Ireland." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_11.

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Martin, Christopher. "The Con-Lib Agenda for National Security and Strategy." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_12.

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Vickers, Rhiannon. "The Con-Lib Agenda for Foreign Policy and International Development." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_13.

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Lynch, Philip. "The Con-Lib Agenda for Europe." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_14.

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Bale, Tim, and Emma Sanderson-Nash. "A Leap of Faith and a Leap in the Dark: The Impact of Coalition on the Conservatives and Liberal Democrats." In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_15.

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Conference papers on the topic "Clegg"

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Winkel, R. J., Sumner P. Davis, and Mark C. Abrams. "Fourier Transform Spectroscopy of LaS in the Infrared." In High Resolution Fourier Transform Spectroscopy. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/hrfts.1989.wa4.

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Shoop, S., M. Knuth, and J. Crandell. "Using a Clegg Impact Hammer to Measure Snow Strength." In Cold Regions Engineering 2012. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412473.080.

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Hu, H., Y. Zheng, Y. Chait, and C. V. Hollot. "On the zero-input stability of control systems with Clegg integrators." In Proceedings of 16th American CONTROL Conference. IEEE, 1997. http://dx.doi.org/10.1109/acc.1997.611829.

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Guimarães, Fernanda, Jakeline Becker Carbonera, and Cristiano José Castro de Almeida Cunha. "A LIDERANÇA E A SERENDIPIDADE: UMA REVISÃO INTEGRATIVA." In Congresso Internacional de Conhecimento e Inovação (ciKi). Congresso Internacional de Conhecimento e Inovação (ciKi), 2023. http://dx.doi.org/10.48090/ciki.v1i1.1349.

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O objetivo desta pesquisa foi identificar na literatura os principais aspectos da relação entre a liderança e a serendipidade nas organizações. O estudo foi realizado por meio de uma revisão integrativa da literatura cujo o tema foi pesquisado nas bases de dados Scopus, Web of Science e Scielo. A serendipidade, que é a descoberta acidental de uma oportunidade (Cunha, Clegg &amp; Rego, 2015), foi identificada nos estudos pesquisados de maneira associativa com a liderança, como um aspecto relevante no planejamento da gestão organizacional.
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Hayati, Hasti, Paul Walker, Terry Brown, Paul Kennedy, and David Eager. "A Simple Spring-Loaded Inverted Pendulum (SLIP) Model of a Bio-Inspired Quadrupedal Robot Over Compliant Terrains." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87134.

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To study the impact of compliant terrains on the biomechanics of rapid legged movements, a well-known spring loaded inverted pendulum (SLIP) model is deployed. The model is a three-degrees-of-freedom system (3 DOF), inspired by galloping greyhounds competing in a racing condition. A single support phase of hind-leg stance in a galloping gait is taken into consideration due to its primary function in powering the greyhounds locomotion and higher rate of musculoskeletal injuries. To obtain and solve the nonlinear second-order differential equation of motions, the Lagrangian method and MATLABb R2017b (ode45 solver), which is based on the Runge-Kutta method, has been used, respectively. To get the viscoelastic behavior of compliant terrains, a Clegg hammer test was developed and performed five times on each sample. The effective spring and damping coefficients of each sample were then determined from the hysteresis curves. The results showed that galloping on the synthetic rubber requires more muscle force compared with wet sand. However, according to the Clegg hammer test, wet sand had a higher impact force than synthetic rubber which can be a risk factor for bone fracture, particularly hock fracture, in greyhounds. The results reported in this paper are not only useful for identifying optimum terrain properties and injury thresholds of an athletic track, but also can be used to design control methods and shock impedances for legged robots performing on compliant terrains.
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Shizuku, Yoshinori, and Yoshihisa Ishida. "Design of a PID controller based on a reset compensator using the Clegg integrator." In 2016 IEEE 12th International Colloquium on Signal Processing & Its Applications (CSPA). IEEE, 2016. http://dx.doi.org/10.1109/cspa.2016.7515807.

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Hasan, Md Mehedi, and Rafiqul A. Tarefder. "Comparison of Resilient Modulus of Unbound Layers Obtained from Clegg Hammer and Laboratory Test." In International Conference on Sustainable Infrastructure 2017. American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784481219.014.

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Shenvi, Mohit Nitin, Corina Sandu, and Costin Untaroiu. "Comparative evaluation of methods to evaluate penetration resistance for clegg hammer and cone penetrometer." In 16th European-African Regional Conference of the ISTVS. International Society for Terrain-Vehicle Systems, 2023. http://dx.doi.org/10.56884/zdxv8929.

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Niels G Svendsen, Heidi R Howard, and Ermson Z Nyakatawa. "Correlation of Soil Cone Penetrometer Resistance and Clegg Impact Test Values on Composted Mulch Berms." In 2008 Providence, Rhode Island, June 29 - July 2, 2008. American Society of Agricultural and Biological Engineers, 2008. http://dx.doi.org/10.13031/2013.25411.

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Shenvi, Mohit, Corina Sandu, and Costin Untaroiu. "Benchmarking of Compression Testing Devices in Snow." In 11th Asia-Pacific Regional Conference of the ISTVS. International Society for Terrain-Vehicle Systems, 2022. http://dx.doi.org/10.56884/otsp3025.

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Traction testing of tires for 'severe snow use' certification is performed according to ASTM F1805 in the Unites States and Canada. The ASTM standard provides guidelines for the preparation and compaction of the snow required for the testing and its evaluation using the CTI (Compliance Testing Incorporated) penetrometer. However, the CTI penetrometer provides a measure of the degree of compactness of the snow. From a computational perspective, this information in itself is not sufficient for modeling and/or validation of a snow model for virtual snow traction testing, which is important in the design stage of tires. This work attempts to compare the relative compression testing performance of three devices, namely a CTI penetrometer (rounded cone tip impactor), a standard Clegg Hammer (flat surface impactor), and an in-house developed device inspired by the Russian Snow Penetrometer (cone tip impactor). The approach used here includes a comparison of the available direct and indirect outputs of all the devices and a statistical analysis of these. The observed differences may be due to differences in the mass and drop height between the devices. The findings of this work provide a baseline for further research into the optimal mass and drop height for the evaluation of compacted snow properties. From a modeling perspective, the values generated using the Clegg impact hammer could be useful. However, it tends to underestimate the elastic modulus, when its results are compared to the laboratory technique, and to overestimate the ram resistance when compared to the in-house device. Further improvements to the in-house device may improve its ability to measure the snow properties most relevant to the modeling of snow.
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Reports on the topic "Clegg"

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Sutipatanasomboon, Arpaporn. Ultimate guide on Clegg Impact Testers. ConductScience, 2022. http://dx.doi.org/10.55157/cs20220727.

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A Clegg Impact Tester, also known as a Clegg Hammer, is a portable device invented by Dr. Baden Clegg to assess surface shock absorption and bearing capacity. It measures the strength of soils, aggregates, and synthetic materials for roads and sports surfaces. The tester consists of a compaction hammer, guiding tube, and piezoelectric accelerometer. It quantifies a surface's ability to withstand structural load and offers insights into strength, stiffness, and stability. The hammer is dropped from a specific height, and its impact is measured. Clegg Impact Testers are used for various applications, including road quality, turf safety, athletic tracks, and stall surfaces. Factors to consider when choosing one include hammer weight, readout range, power source, and additional features.
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Kim, Hobi, Monica Prezzi, and Rodrigo Salgado. Use of Dynamic Cone Penetration and Clegg Hammer Tests for Quality Control of Roadway Compaction and Construction. Purdue University, 2011. http://dx.doi.org/10.5703/1288284314246.

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Miknis, F. P., and R. E. Robertson. Characterization of DOE reference oil shales: Mahogany Zone, Parachute Creek Member, Green River Formation Oil Shale, and Clegg Creek Member, New Albany Shale. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5535457.

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Health hazard evaluation report: HETA-86-438-1795 and HETA-86-534-1795, Bondar-Clegg, Lakewood, Colorado, Sparks, Nevada. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, 1987. http://dx.doi.org/10.26616/nioshheta865341795.

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