Relevant bibliographies by topics / SAW

Contents

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

Academic literature on the topic 'SAW'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 May 2024

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Journal articles on the topic "SAW"

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Rolinski, Tom, Scott B. Capps, and Wei Zhuang. "Santa Ana Winds: A Descriptive Climatology." Weather and Forecasting 34, no. 2 (March 7, 2019): 257–75. http://dx.doi.org/10.1175/waf-d-18-0160.1.

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Abstract The criteria used to define Santa Ana winds (SAWs) are dependent upon both the impact of interest (e.g., catastrophic wildfires) and the location and/or time of day examined. We employ a comprehensive definition and methodology for constructing a climatological SAW time series from 1981 through 2016 for two Southern California regions, Los Angeles and San Diego. For both regions, we examine SAW climatology, distinguish SAW-associated synoptic-scale atmospheric patterns, and detect long-term, significant SAW trends. San Diego has 30% fewer SAW days compared to Los Angeles with 80% of SAW events starting in Los Angeles first. Further, 45% of San Diego SAW events are single-day events compared to 35% for Los Angeles. The longest duration event spanned 16 days for Los Angeles (27 November–12 December 1988) and 8 days for San Diego (9–16 January 2009). Although SAW-driven fires can be large and devastating, these types of fires occurred on only 6% and 5% of SAW days for the Los Angeles and San Diego regions, respectively. Finally, we find and investigate an extended period of elevated SAW day count occurring after 2005. This new climatology will allow us to produce month- and season-ahead forecasts of SAW days, which is useful for planning end-of-year staffing coverage by the local, state, and federal fire agencies.
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Saiki, O., M. Kawamoto, M. Fukuzumi, M. Kanou, and S. Utsumi. "Staphylococcus aureus Wood 46 strain activates human B cells without affecting DNA synthesis or tyrosine phosphorylation." Journal of Immunology 150, no. 8 (April 15, 1993): 3224–29. http://dx.doi.org/10.4049/jimmunol.150.8.3224.

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Abstract Induction of Ig secretion in human tonsilar B cell by protein A-deficient Staphylococcus aureus WOOD 46 strain (SAW) was examined. SAW induced as much Ig secretion as protein A-rich S. aureus Cowan I strain (SAC) when IL-2 was present in the culture. Activated and resting B cells are separated by Percoll gradient to determine whether SAW stimulates either resting or activated B cells. In resting B cells, SAW plus IL-2 induced IgM secretion significantly, but neither IL-2 nor SAW alone induced IgM secretion. In activated B cells, however, IL-2 induced IgM secretion by itself and SAW plus IL-2 did not induce additional IgM secretion. These results suggest that SAW activates small resting B cells rather than preactivated B cells. Subsequently, mechanisms of B cell activation by SAW and SAC were compared. SAW did not induce [3H]-TdR incorporation through day 1 to 5, and the number of viable cells was not increased by SAW stimulation. Moreover, SAW did not induce significant tyrosine phosphorylation at any concentration tested, when tyrosine phosphorylation of B cells was examined. However, SAC induced both [3H]-TdR incorporation and tyrosine phosphorylation of B cell efficiently. In further experiments, induction of IL-2R and IgM mRNA expressions were examined. SAW by itself induced IL-2R and IgM mRNA expressions without affecting expression of membrane-type IgM mRNA. These results show that SAW activates human B cells in quite a different manner from SAC by up-regulating the expression of secretory type IgM mRNA without affecting cell proliferation nor tyrosine phosphorylation, proposing a distinct B cell activation model from SAC.
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Dawadi, Krishna Bahadur, Mahesh Bhattarai, and Puspa Lal Homagai. "Adsorptive Removal of Methyl Red from Aqueous Solution using Charred and Xanthated Sal (Shorea robusta) Sawdust." Amrit Research Journal 1, no. 1 (September 17, 2020): 37–44. http://dx.doi.org/10.3126/arj.v1i1.32451.

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Adsorptive removal of methyl red (MR) from aqueous solution onto chemically modified Charred Sal (Shorea robusta) Saw-Dust (CSSD) and Xanthated Sal Saw-Dust (XSSD) has been investigated. The surface modification is characterized by Fourier transformed infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and elemental Analysis. Different parameters are studied such as contact time, optimum pH, and initial ion concentration. Maximum dye removal is observed at pH 4 for charred and xanthated Sal saw dust. The dye can be quantitatively removed onto the surface of these adsorbent. At a contact time of 3-4 hours maximum adsorption capacity (qmax) for CSSD and XSSD are found to be 70 mg/g and 130 mg/g respectively. Adsorption kinetic data are best fitted onto pseudo second order. The obtained result indicated an excellent alternative for the treatment of dye contaminated waste water using such chemically modified Sal saw dust at low cost with better efficiency.
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Mare, Shrirang, Reza Rawassizadeh, Ronald Peterson, and David Kotz. "SAW." Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 2, no. 3 (September 18, 2018): 1–29. http://dx.doi.org/10.1145/3264935.

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Carter, Kyle, Adam Foltzer, Joe Hendrix, Brian Huffman, and Aaron Tomb. "SAW." ACM SIGAda Ada Letters 33, no. 3 (November 29, 2013): 15–18. http://dx.doi.org/10.1145/2658982.2527277.

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Vekakis, Matt. "Bench Saw." Appalachian Review 49, no. 1 (2021): 56–57. http://dx.doi.org/10.1353/aph.2021.0009.

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Milosz, Czeslaw, and Robert Hass. "I Saw." Grand Street, no. 66 (1998): 76. http://dx.doi.org/10.2307/25008391.

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Buff, W. "SAW sensors." Sensors and Actuators A: Physical 30, no. 1-2 (January 1992): 117–21. http://dx.doi.org/10.1016/0924-4247(92)80205-h.

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Pittman, Eddie. "Saw Time." Critical Perspectives on Accounting 18, no. 6 (September 2007): 670. http://dx.doi.org/10.1016/j.cpa.2006.03.003.

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Bohannan, Paul. "Old Saw." Anthropology News 31, no. 1 (January 1990): 3. http://dx.doi.org/10.1111/j.1556-3502.1990.tb01514.x.

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Dissertations / Theses on the topic "SAW"

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Santos, Bianca Maria. "SAW REFLECTIVE TRANSDUCERS AND ANTENNAS FOR ORTHOGONAL FREQUENCY CODED SAW SENSORS." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3433.

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Passive sensors that vary its impedance per measured parameter may be used with surface acoustic wave (SAW) reflective transducers (SRT) for wireless acquisition of the measurand. The device is composed of two transducers, where one, which may be attached to an antenna, is used to launch the wave within the device substrate, and the other is where the sensor load is attached to. The latter is able to reflect the incident wave. How much power is reflected is determined by the attached sensor load. Amplitude variations as well as peak frequency variations of the SRT reflectivity response are explored in this thesis. SAW passive temperature sensors with an orthogonal frequency coded (OFC) time response were previously investigated and prove to be ideal for use in harsh environments. Each sensor is distinguishable from the other due to the OFC code embedded within its time response. However, this coding technique poses a difficulty in designing antennas for the sensor due to its inherently wide bandwidth, and capacitive, non-uniform input impedance. This work covers antenna design and testing for the 250MHz wireless temperature acquisition prototype with a 28% fractional bandwidth, and for the 912MHz system which has 10% fractional bandwidth. Apart from the tag, antennas for the transmitter and receiver were designed for 50 Ohm matching with the required bandwidth maintained. Wireless temperature acquisition runs for the 250MHz prototype were successfully performed and show good agreement with measurements made by a thermocouple. Since a transceiver for the 912MHz system is not complete, the performance of the antennas was gauged by observing the signal transmitted wirelessly by the SAW tag and by comparing this with the sensor time response measured directly by a vector network analyzer.
M.S.E.E.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering MSEE
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Ponton, Charles B. "Finite Element Analysis of Industrial Circular Sawblade With Respect to Tensioning, Rotating, Cutting, and Expansion Slots." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31279.

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Little research has been done to determine the stress states developed in an industrial sawblade for various operating conditions. The stresses are developed from the forces generated during the cutting of materials, and also from the vibration of the sawblade. The difficulty of analyzing these stresses and vibrations results from the sawbladeâ s high speed of rotation, which make it difficult to instrument the sawblade for analysis. Stress and vibration can ruin the sawblade from loss of material properties due to heat build-up and fatigue failure. The sawblade industry raised natural frequencies away from the operating frequencies to overcome the vibrations. To raise the natural frequencies of the sawblades away from the operating frequencies, residual stresses have been intentionally induced in the sawbody. The residual stresses come from plastically deforming the sawbody with one or more concentric rings. Experts who determine the location, depth, and number of residual stress rings are called â saw doctorsâ . This thesis quantifies the residual stresses induced by saw doctors. Developing and evaluating finite element models of an industrial sawblade while undergoing the effects from rotating and cutting are also included in the thesis. In addition, the effects on the sawblades performance due to various numbers and lengths of expansion slots and sawblade tensioning are explored. Models of the sawblade are plastically deformed leaving residual stresses which are analyzed to determine the natural frequencies of the sawblade. The thesis quantifies the above mechanisms for a sawblade under the loads developed from rotation and a load case representing the cutting process. The work developed in this thesis is a first step toward characterizing the effects of specific mechanisms which can be used to design better, longer lasting sawblades.
Master of Science
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Henderson, Kimberly. "The Sins I Saw." The University of Montana, 2007. http://etd.lib.umt.edu/theses/available/etd-05082007-125511/.

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Mullally, Andrew. "Singing saw : final thrum." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6226.

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Humanity has entered a new geologic age wherein our actions have become the dominant influence steering both climate and environment, now having entered a new era of mass extinction. Some scientist allege that half of the extant animal species have disappeared in the last forty years, while other scientific studies project that the remaining nine million species will again halve by the end of the century. Although extinction cycles are no stranger to this planet, this sixth iteration is unique in that is being driven primarily by human consumption. It has been claimed that in order to sustain our current level of consumption, we would need a planet 1.5-2 times the size of the one we currently inhabit. It is easy to dismiss our individual responsibility as stewards of this planet. New modes of thinking about and approaching conservation at a local level must be developed in order to stave off the impending destruction of any and all species. Our own future as a species is inexorably linked to the success of the ecosystems we inhabit; their success, too, is bound to the species that sustain them. While this essay may not offer any meaningful solutions to an impending cataclysm, it is my hope that it will at the very least elicit a desire to amend the way we think about animals, nature, and the urgent responsibility we need to take for our planet in order for both our species and the Earth’s other inhabitants to endure.
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Bland, Lindsay Kay. "To What They Saw As Ritual." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-06192009-111330/.

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Clark, William Isaac. "Fixed-Abrasive Diamond Wire Saw Machining." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-20011229-110053.

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The goal of this research was to investigate the use of fixed abrasive diamond wire saw machining with wood and foam ceramic materials. Fixed abrasive diamond wire saw machining was developed in recent years to allow for thin kerf slicing of advanced semiconductor materials. The main advantages of this machining technology for the use in wood machining are its thin kerf loss and unidirectional cutting capability.The design of cutting experiments using a spooled wire saw is presented. The first experiment tested the response of machining wood repeatedly with the same process parameters. The next experiments tested the effect of changing wire axial speed and saw rocking motion conditions for pine and oak wood materials. Finally, an experiment was designed to machine three types of foam ceramic materials. A data acquisition system was constructed and signal-processing techniques for removing noise were developed. The data collection system was used to record forces and certain machine parameters during wire cutting. The machined surfaces for the wood materials were measured to determine their roughness. A Scanning Electron Microscope was used to examine new and used wire as well as cutting debris to study the effects of wire wear. Finally, the results and the direction of future work in this area are discussed.

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Winkler, Andreas. "SAW-basierte, modulare Mikrofluidiksysteme hoher Flexibilität." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-84978.

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Diese Dissertation beschäftigt sich mit der Entwicklung eines neuartigen Konzepts für Herstellung und Handhabung von Mikrofluidiksystemen auf der Basis akustischer Oberflächenwellen (SAW) sowie der Nutzung dieses Konzepts zur Fertigung anwendungsrelevanter Teststrukturen. Schwerpunkte sind dabei unter anderem eine hohe Leistungsbeständigkeit und Lebensdauer der Chipbauelemente und eine hohe technologische Flexibilität bezüglich Herstellung und Einsatz. Ausgehend von einer modularen Betrachtungsweise der Bauelemente wurden vielseitig einsetzbare, elektrisch-optimierte Interdigitalwandler entworfen, verschiedene Herstellungsvarianten für vergrabene Interdigitalwandler hoher Leistungsbeständigkeit auf piezoelektrischen Lithiumniobat-Substraten entwickelt und experimentell verifiziert, ein Sputterverfahren für amorphe SiO2-Dünnschichten hoher Qualität optimiert und eine Federstiftkontakt-Halterung entworfen. Durch Kombination dieser Technologien wurden SAW-Bauelemente für die mikrofluidische Aktorik mit hoher Performance und Reproduzierbarkeit entworfen, charakterisiert und beispielhaft für das elektroakustische Zerstäuben von Fluiden und das Mischen in Mikrokanälen eingesetzt.
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Frank, Rebecca M. "The Last Time I Saw Manila." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337007672.

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Medeiros, Carolina Brum. "Avaliação de sensor SAW de temperatura." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/93023.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2009
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Este trabalho objetiva estudar sensores de temperatura sem fio baseados na tecnologia SAW (Surface Acoustic Wave - ondas acústicas superficiais). Os sensores SAW utilizados são baseados na sensibilidade dos parâmetros de propagação de ondas SAW em um substrato piezelétrico encapsulado em um circuito integrado. Estes sensores dispensam alimentação e podem ser interrogados à distância, sem fio. O conhecimento dos parâmetros do sensor é necessário para possibilitar o projeto de um interrogador para com ele formar um sistema de medição. Foi utilizado um único modelo de sensor, que opera na faixa de frequência de 433 MHz, com faixa de medição de (0 a 120) °C. Para a avaliação, foram utilizados equipamentos de radiofrequência ligados através de cabos e interface de conectores, exigindo o emprego de técnicas específicas para desacoplá-los, pois interferem significativamente no resultado das medições. Os critérios de avaliação do sensores se basearam nos diferentes indicadores de ressonadores e a comparação com sensores convencionais de temperatura. Chegou-se à conclusão de que a interface de comunicação entre equipamentos e dispositivo sob teste é muito relevante, alterando de forma significativa os resultados. Também concluiu-se que os sensores SAW tem resposta linear e comportamento estável com o tempo.
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Martin, Rebecca. "Particulate Emissions in Selected Maine Saw Mills." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/MartinR2008.pdf.

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Books on the topic "SAW"

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group), Grain (Musical, and Rice University Art Gallery, eds. One saw, the other saw. Houston, TX: Rice University Art Gallery, 2002.

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Publishing, Fox Chapel, ed. Circular saw and jig saw. East Petersburg, Pa: Fox Chapel Pub., 2010.

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Publishing, Fox Chapel, ed. Circular saw and jig saw. East Petersburg, Pa: Fox Chapel Pub., 2010.

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Maśala, Ṡaḥayé. Saw ʼenā saw: ʼaċāċer lebwalad tārikoč. ʼAdis ʼAbabā, ʼItyop̣yā: Kurāz ʼasātāmi dereǧet, 1992.

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1962-, Armentrout David, ed. The saw. Vero Beach, FL: Rourke Book Co., 1995.

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Klein, Adria F. Sammy Saw. Mankato, Minn: Stone Arch Books, 2011.

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See saw. Frankfurt am Main: Trademark Publishing, 2014.

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Bātu, Germā. ʼAdisu saw. ʼAdis ʼAbabā: Germā Bātu, 2005.

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Mānṭagbot, Fesehā. Saw ʼeko!? [Adis Ababa: s.n., 2009.

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Edward-Corbett, Sara. See-saw. [New York, NY]: the author, 2005.

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Book chapters on the topic "SAW"

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Donnelly, K. J. "Saw Heard." In The Synergy of Music and Image in Audiovisual Culture, 29–50. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003299653-3.

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Gooch, Jan W. "Cut-off Saw." In Encyclopedic Dictionary of Polymers, 188. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3220.

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Upgren, Arthur. "What Ayla Saw." In Night Has a Thousand Eyes, 213–20. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-6072-6_24.

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Baldwin, Matthew. "I Saw U." In Never Threaten to Eat Your Co-Workers: Best of Blogs, 131. Berkeley, CA: Apress, 2004. http://dx.doi.org/10.1007/978-1-4302-0678-1_35.

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Safran, Linda. "What Constantine Saw." In MILLENNIUM-Jahrbuch / Millennium Yearbook, 43–73. Berlin, New York: Walter de Gruyter, 2006. http://dx.doi.org/10.1515/9783110186437.43.

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Moore, Aaron. "3. Bow-saw." In Carpentry Toolmaking, 22–34. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780444642.003.

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Boucheron, Patrick. "What Giorgione Saw." In History and Art History, 105–16. New York, NY : Routledge, 2021. | Series: Routledge research in art history: Routledge, 2020. http://dx.doi.org/10.4324/9780429288623-7.

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Wan, James. "Saw." In 100 American Horror Films. The British Film Institute, 2022. http://dx.doi.org/10.5040/9781839021428.0088.

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"Front Matter." In SAW, 1–4. Auteur, 2011. http://dx.doi.org/10.2307/j.ctv138420s.1.

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"Audiences." In SAW, 77–88. Auteur, 2011. http://dx.doi.org/10.2307/j.ctv138420s.10.

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Conference papers on the topic "SAW"

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Jujukin, Nikolai. "GEOMETRY OF KERF WHEN CURVE SAWING WITH A CIRCULAR RIP-SAW." In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_224-227.

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Rip-sawing following the curvature of a crooked log means advantages for yield. However, the possibility to saw in a narrow curve with a circular saw blade is limited because of the inherently flat geometry of circular saw blades. For a double arbour circular saw the situation is even more problematic because the two blades have a certain overlap and thus, the two arbours are not positioned in the same horizontal position. In this study, a theoretical geometrical study of the creation of a kerf with a single circular saw blade and with a double arbour circular saw with two saw blades was examined. Results for stiff saw blades show that the kerfs become in general curved and inclined (tilted) in the vertical direction and also that the width of the kerfs for double arbour saws becomes wider at the top and bottom of the cant than in the middle. Additionally, the sawn boards obtain varying thickness along their width because of the varying kerf width. A comparison with experimental thickness data from four test sawings at a sawmill indicates that the theoretical results are valid and that curve sawn boards become thinner than straight sawn boards.
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Maksimenkov, Alexey, Aleksandr Miltsin, A. Starodubov, and O. Bagno. "ABOUT THE PREPARATION FOR THE WORK OF BAND AND FRAME SAWS." In Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_145-149.

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Sawing wood with band and frame saws is considered as a technological system at the level of a technological operation. Such a system is a set of functionally interconnected, interdependent and conditionally indivisible elements: a sawn workpiece, a band saw, a frame saw, a machine tool, a sawing mode, the environment and the operator. Changing any element of this system inevitably leads to a change in the technological system, to a change in the quality of its functioning. That is why the operation of band saws and sawmills at different enterprises occurs in different ways. Increasing the efficiency of sawing involves reducing the probability of failures associated with a decrease in the quality of sawn surfaces, premature blunting of the cutting edges of the teeth and a burst of tapes, reduced productivity and increased energy consumption and noise levels, etc.
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Bo, Luyu, Jiali Li, Xinyu Zhang, Teng Li, and Zhenhua Tian. "Investigation of Water Effects on Surface Acoustic Wave Transmission." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-96673.

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Abstract Corrosion is a typical damage type in metallic structures. Free water on metallic structures can gradually lead to corrosion damage. In this study, we investigated free water sensing based on surface acoustic waves (SAWs). The fabricated SAW device consists of two interdigital transducers (IDTs) in a pitch-catch configuration on a lithium niobate (LiNbO3) piezoelectric substrate. Finite element simulations of SAWs generated by IDTs and SAW-droplet interaction were performed. To unveil the effects of a water droplet on SAWs and understand the mechanism of our SAW device, we simulated multiple cases with different volumes of water droplets. The simulation results show that the transmission amplitude gradually decreases with the water volume increase. A proof-of-concept experiment was performed by using a fabricated SAW device to detect a water droplet on the substrate surface. The experimental results show a similar trend as that of the finite element simulations.
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Liu, Fuqing, Chunyan Yao, and Wei Peng. "Key Factors in Ultraviolet-Curing Wire Saw." In 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2007. http://dx.doi.org/10.1115/mnc2007-21170.

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Wire saw, with its ability to cut hard brittle material, such as silicon ingots, crystals and quartz, has emerged as a leading technology for production in semiconductor and photovoltaic industry. There are some defects in conventional loose abrasive wire saw such as significant industrial waste, low machining efficiency, high running costs, etc. As a countermeasure to these problems, some fixed-abrasive diamond wire saws are produced by electroplating process, bonding with resin agent or mechanical embedding of abrasive grains into piano wires. Nevertheless, there still exist disadvantages such as low efficiency of bonding process and high manufacture cost. For this reason, in the research, an idea of making fixed-abrasive diamond wire saw bonded with ultraviolet-curing resin is proposed. In manufacture process, generally, the preparation of materials, improvement of adhesion, and the art of ultraviolet curing determine what technologies is most effective. Therefore, to attain a specific set of properties in the cured wire saw and to achieve an efficient ultraviolet-curing process, the factors that influence the photopolymerization should be well understood. In this paper, the manufacturing process of an ultraviolet-curing resin wire saw is illustrated. Moreover, slicing experiments are deduced to evaluate the results of the study.
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Yu, Youmin, Denis Bai, Y. W. Jiang, and Sonder Wang. "Optimization of Saw Street Configuration to Save Saw Blade in Assembling QFN Packages." In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89158.

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Saw singulation is an indispensable process to sever the Mold Array Package (MAP) strips into individual units in assembling Quad Flat No-lead (QFN) packages. Mechanical saw, cutting the MAP strip along saw streets using dicing blade, is a mainstream mode in the saw singulation process. Accordingly, the dicing blade, a continuously consumed part, takes a significant portion of the assembly cost. The saw blade consumption is generally determined by saw blade type, MAP strip structure and process parameter. In this study, the effects of MAP strip structure, specifically, the saw street configuration in lead frame, on the saw blade saving have been experimentally investigated. The saw street configuration was first investigated by comparing the wear amount of saw blade for cutting discrete and continuous saw streets of equal length and same configuration in 3×3 mm, 6×6 mm and 9×9 mm QFN packages. It is found that (i) the wear amount of the discrete saw streets may be significantly less than its counterpart of the continuous saw streets and (ii) the saw blade saving in the discrete saw streets goes more as the package size goes smaller. The saw blade saving is attributed to the additional saw process improvement contributed by the discrete saw streets. The saw street configuration was also investigated by comparing the wear amount of saw blade for cutting saw streets of 5 mil and 8 mil lead frames in the 6×6 mm QFN package. It is proved that less metal amount in the saw street consumes less saw blade. The merit of the discrete saw street and metal amount reduction in saw street were then implemented in the revised lead frame of the 6×6 mm package, and the saw blade consumption per MAP strip dropped to 15.8 μm in revised lead frame from 113.0 μm in original lead frame in statistical sense.
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Carter, Kyle, Adam Foltzer, Joe Hendrix, Brian Huffman, and Aaron Tomb. "SAW." In the 2013 ACM SIGAda annual conference. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2527269.2527277.

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Wang, Chundong, and Weng-Fai Wong. "SAW." In the 50th Annual Design Automation Conference. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2463209.2488937.

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Li, Jiali, Luyu Bo, Teng Li, and Zhenhua Tian. "Alignment of Nanomaterials in Hydrogels by Using Standing Surface Acoustic Wave-Enable." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-97095.

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Abstract Particle manipulation and patterning have gained tremendous attention in chemical, biomedical, and manufacturing studies. Hydrogels are usually used for applications in soft robots, biosensing, as well as tissue engineering. In this study, we investigated a nanoparticle manipulation method based on standing surface acoustic waves (SAWs). The SAW device consists of a piezoelectric lithium niobate (LiNbO3) substrate with a pair of interdigital transducers (IDTs). Finite element simulations were performed to understand the mechanisms of the SAW device as well as reveal the acoustic pressure field and electric potential field generated by the device. In addition to numerical studies, proof-of-concept experiments were performed by using a fabricated SAW device for patterning both silicon dioxide (SiO2) nanoparticles and multi-walled carbon nanotubes (MWCNTs) in a hydrogel solution.
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Bagno, O., and Alexey Maksimenkov. "THE INFLUENCE OF THE STABILITY OF BAND SAWS ON THE QUALITY INDICATORS OF SAW PRODUCTS." In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_185-191.

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The main drawback of circular sawing machines is the presence of broken teeth in the cut. In case of vibrations, violation of the saw plane, mismatch of the feed direction with the saw planes, and rebasing, these teeth spoil the processing surface. Belt sawing allows you to ensure high quality of lumber on the roughness of their surface at high feed rates; increase productivity by 1.5-2 times due to mechanization and automation of technological operations. One of the most important advantages of band saws is the small width of the cut, which is 1.5-2 times smaller than that of the sawmill; the small thickness of the saw ensures low consumption of wood in sawdust and high volume output of lumber. Sawing wood on band saws, in the vast majority of cases, is characterized by face cutting. Of the 3 forms of chip formation when cutting into the end, for band saws, the most characteristic is the formation of the chip element by chipping it with the stratification of wood along the bottom of the cut. The quality of the surface, in terms of its roughness, in addition to the formation of the chip element, is affected by its location in the interdental space, the presence and degree of compression and transportation of the chip element. The quality of the surface, in terms of its roughness, in addition to the formation of the chip element, is affected by its location in the interdental space, the presence and degree of compression and transportation of the chip element. As a result of studies of the initial conditions for the development of the teeth sharpening scheme, the orientation of the active elements of the blade relative to the middle plane of the saw can be identified as the main ones.
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Renshaw, Anthony A., and Grant M. Warner. "Thickness Profiles for Rotating Circular Disks That Maximize Critical Speed." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8131.

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Abstract Thickness profiles for rotating disks that maximize critical speed are determined for use by designers of industrial circular saws. The disk thickness is permitted to vary between fixed lower and upper bounds, the lower bound corresponding to the minimum thickness saw capable of supporting the in-plane stresses associated with cutting forces and rotation, the upper bound corresponding to the thickness of the saw teeth. The optimal thickness profile consists of two annuli, the inner one with thickness equal to the upper bound, the outer one with thickness equal to the lower bound. With the optimal thickness profile, the critical speed can be raised up to 24%, depending on the clamping ratio of the disk and the lower bound. Optimal thickness profiles and increases in critical speeds are described and compared to existing saw designs.
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Reports on the topic "SAW"

1

GAFNER, STEFAN. Saw Palmetto Extract Laboratory Guidance Document. ABC-AHP-NCNPR Botanical Adulterants Prevention Program, September 2019. http://dx.doi.org/10.59520/bapp.lgd/qndh7158.

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There is documented evidence of the adulteration of saw palmetto fruit extracts with a number of vegetable oils, such as canola (Brassica napus ssp. napus, Brassicaceae), coconut (Cocos nucifera, Arecaceae), olive (Olea europaea, Oleaceae), palm (Elaeis guineensis, Arecaceae), peanut (Arachis hypogaea, Fabaceae), and sunflower (Helianthus annuus, Asteraceae) oils. The partial or complete substitution of saw palmetto fruit extracts with mixtures of fatty acids of animal origin was first documented in 2018, and seems particularly common in materials sold as saw palmetto originating from China. This Laboratory Guidance Document (LGD) presents a review of the various analytical technologies used to differentiate between authentic saw palmetto extracts and ingredients containing adulterating materials. This document can be used in conjunction with the Saw Palmetto Botanical Adulterants Bulletin, rev. 3, published by the ABC-AHP-NCNPR Botanical Adulterants Prevention Program in 2018.
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Raoufi, Kambiz, Tony Their, and W. Weiss. Saw-Cutting Guidelines for Concrete Pavements: Examining the Requirements for Time and Depth of Saw-Cutting. Purdue University Press, 2009. http://dx.doi.org/10.5703/1288284313449.

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Hoffman, Edward, Robert Clay, and Ernest Friedman-Hill. David Etim Quad Chart for SAW Workflow. Office of Scientific and Technical Information (OSTI), July 2019. http://dx.doi.org/10.2172/1762914.

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Morgenstern, H. A. Characterization and Qualification of a Precision Diamond Saw. Office of Scientific and Technical Information (OSTI), March 1999. http://dx.doi.org/10.2172/3980.

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Brocato, Robert Wesley. Programmable SAW development :Sandia/NASA project final report. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/882345.

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Heifets, Samuel A. Non-linear Mode Coupling and Saw-Tooth Instability. Office of Scientific and Technical Information (OSTI), September 1999. http://dx.doi.org/10.2172/12481.

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Bell, Haley, and James Rowland. Rapid Airfield Damage Recovery : deployable saw technology evaluation. Geotechnical and Structures Laboratory (U.S.), March 2018. http://dx.doi.org/10.21079/11681/26585.

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Morabit, V. D. Tip stabilizer for a chain saw. Final report. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10179770.

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Bono, M., and D. Bennett. Diamond Wire Saw for Precision Machining of Laser Target Components. Office of Scientific and Technical Information (OSTI), August 2005. http://dx.doi.org/10.2172/878634.

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Weiss, Jason, Hongfang Sun, Bernard Tao, Mike Golias, Mohammad Pour-Ghaz, and Javier Castro. Durability of Saw-Cut Joints in Plain Cement Concrete Pavements. Purdue University, 2011. http://dx.doi.org/10.5703/1288284314649.

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