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Relevant bibliographies by topics / Drag racing

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Academic literature on the topic 'Drag racing'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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Journal articles on the topic "Drag racing"

1

MATSUZAKI, Takeshi. "Drag Reduction of Racing Swimsuit." Journal of the Society of Mechanical Engineers 108, no. 1039 (2005): 436–37. http://dx.doi.org/10.1299/jsmemag.108.1039_436.

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Wiers, Paul C., and Anoop K. Dhingra. "On the Beneficial Effects of Anti-Squat in Rear Suspension Design of a Drag Racing Motorcycle." Journal of Mechanical Design 124, no. 1 (2000): 98–105. http://dx.doi.org/10.1115/1.1431261.

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In the drag racing environment, maximizing tractive effort is essential to competitive performance. Anti-squat is a transient vehicle suspension parameter which can dramatically affect tractive effort available at the motorcycle drive tire. This paper addresses the design of a four-link rear suspension for a drag racing motorcycle to provide anti-squat, which increases rear tire traction, thereby improving vehicle acceleration performance. Utilizing PC based CAD, finite element analysis and dynamic system analysis software, a motorcycle rear suspension system was designed, built and tested under actual racing conditions. Parametric studies using dynamic theoretical models were conducted for both unsuspended and four-link equipped versions of the same vehicle. Based on the results, it is shown that the four-link suspension, when applied to a drag racing motorcycle, does provide opportunity for improving tractive effort at the beginning of a race which will improve overall drag racing performance.

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Syamsuri, M. Hasan Syafik, and Yudho Putro Iswanto. "Study the effect of angle of attack on flow characteristics at racing bike helmet using CFD." MATEC Web of Conferences 204 (2018): 06001. http://dx.doi.org/10.1051/matecconf/201820406001.

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At a cyclist drag racing champions greatly affect the speed of the bike, especially on the use of racing bike helmets. If the aerodynamic force from the racing bike helmet is getting smaller than the use of helmets on the bike racing will be more optimal and will affect the rate of the racer. In this study, numerical simulations were used to investigate the magnitude of the drag force that occurs around the surface of the helmet. With CFD software, 4 variations of attack angle 0°, 10°, 20° and 30° and variations of Reynold number 7.14x104, 1.00x105, and 1.16x105 are simulated to determine the flow characteristics of each state. The simulation results show that large area vortex is formed at the bottom of the helmet curve and dominates at the attack angle 30°. The result of the drag coefficient generated at the angle of attack 0° to 20° tends to decrease but at the attack angle 200 and 30° the drag coefficient increases.

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Kamalakkannan, K., V. S. Shreyas, and J. Gautam Raj. "Drag induced aerodynamic braking for racing motorcycles." Materials Today: Proceedings 45 (2021): 6870–73. http://dx.doi.org/10.1016/j.matpr.2020.12.1045.

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Sayers, A. T., and P. Stanley. "Drag force on rotating racing cycle wheels." Journal of Wind Engineering and Industrial Aerodynamics 53, no. 3 (1994): 431–40. http://dx.doi.org/10.1016/0167-6105(94)90094-9.

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Dwi Jatmoko, Dwi, Rudi Kurniawan, Aci Primartadi, Suyitno, and Arif Susanto. "Modification of the Four-Step Motorcycle Camshaft Used in Making Salwa Cars (Go Card)." Jurnal E-Komtek (Elektro-Komputer-Teknik) 5, no. 2 (2021): 265–76. http://dx.doi.org/10.37339/e-komtek.v5i2.787.

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To meet the needs of racing, both drag bike racing and road races, vehicles or motorcycles with conditions still standing are not enough. Therefore, it is necessary to modify certain parts, including modifying the chassis, body, and engine. The three parts are very related. Of the three parts, the most priority is modifying the engine because the engine is the main factor in a vehicle or motorcycle. What is needed in modifying the engine is improving engine performance or maximizing engine performance. In this study, the author chose a four-stroke kharisma motorcycle because the modification did not require many changes from the standard conditions. Drag bike racing and road racing have similarities in modifying the engine. Only the difference is in terms of calculating engine endurance. Drag bike racing does not need long engine endurance because it only drives on straight tracks, while road races must think about engine endurance because the engine works in rough terrain conditions varies.

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Yang, Leishuo. "Study on the aerodynamic performance of the racing car rear spoiler by CFD technology." Theoretical and Natural Science 5, no. 1 (2023): 729–35. http://dx.doi.org/10.54254/2753-8818/5/20230480.

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The rear spoiler is one of the main components that affect the aerodynamic performance of the F1 racing car. At present, numerical simulation technology is becoming a research hotspot to study the aerodynamic performance of the F1 racing car. In this paper, we discuss the F1 racing car rear spoiler airfoil selection and three-dimensional design and use three-dimensional simulation software to calculate the impact of different attack angles, velocity, and airfoils on the rear spoilers drag force and negative lift. The results show that the RAE2822 airfoil has a good lift-drag ratio at low velocity. When the attack angle is 30, the maximum lift-drag ratio can be obtained. When the velocity exceeds 60 m/s, the impact on the lift-drag ratio is almost negligible.

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Tommi, Tommi, and Zidan Thoriq Naufaldi. "Perancangan Ulang Media Kampanye Event Street Race Polda Metro Jaya untuk Mengurangi Balap Liar Remaja." Desainpedia Journal of Urban Design, Lifestyle & Behaviour 2, no. 1 (2023): 52. http://dx.doi.org/10.36262/dpj.v2i1.734.

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Among teenagers, the case of illegal racing is a phenomenon that often occurs. Illegal racing is an activity to compete with speed either by motorbike or by car which is carried out on public streets. The perpetrators of illegal racing are usually teenagers. They have a reason because of the lack of a place to channel their hobbies. So, they prefer to do it on the highway. Since the advent of the automotive trend among teenagers, many teenagers prefer to keep themselves busy with automotive hobbies, especially motorcycles, rather than doing brawls that are detrimental to society. But this hobby is also often misused. For example, for teenagers who have a hobby of drag racing, they often use public roads to carry out racing actions. In fact, there are also many teenagers with similar hobbies who use official racing arenas or what are commonly called circuits to channel their drag racing hobbies.

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Bricken, Gordon, and Christopher Jean. "Nine‐year study of NHRA drag racing noise." Journal of the Acoustical Society of America 102, no. 5 (1997): 3158. http://dx.doi.org/10.1121/1.420738.

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Rahim, Syarizal Abdul, Norailis Ab Wahab, Razli Che Razak, and Azira Hanani Ab Rahman. "Corporate Social Responsibility and a Drag Racing Attempt in Combatting Unlawful Street Racing." Journal of Economics, Business and Management 5, no. 1 (2017): 59–62. http://dx.doi.org/10.18178/joebm.2017.5.1.486.

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Dissertations / Theses on the topic "Drag racing"

1

Angle, Gerald M. "Aerodynamic drag reduction of a racing motorcycle through vortex generation." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2643.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains xvi, 137 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 87-89).

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Barry, Reno Don. "Development of a usable website for an electric motorboat drag racing physics project." CSUSB ScholarWorks, 2006. https://scholarworks.lib.csusb.edu/etd-project/3170.

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The project developed a web site for a high school physics projected called "Electric Motorboat Drag Racing." The web site was produced following the ADDIE instructional design model (analyze, design, develop, implement, evaluate) and was designed using key usability concepts identified through research: speed, content, appearance, and navigation (SCAN). The web site was developed and tested by asking experts for their feedback and by having participants use the web site. The web site was implemented in physics classrooms and data from 43 participants were evaluated. The data showed 97 percent of the participants' boats successfully completed the five-meter drag race. It also showed that the two targeted California physics standards were selected most often by participants as the standards they most needed to apply, learn, or review to complete the project. Through testing and evaluation, the web site was made more usable and the project helped physics students learn and apply specific physics concepts while gaining hands-on experience.

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New, T. M. "Random road analysis and improved gear ratio selection of a front wheel drive drag racing car." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1211387456/.

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Greene, Amanda E., Andy Dotterweich, Gary Lhotsky, and Jason Davis. "Street Fights: Corporate Social Responsibility and a Dragway's Attempt to Reduce Illegal Street Racing." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/3794.

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This study sought to explore a professional sport venue’s use of Corporate social responsibility (CSR) to promote positive social change, by addressing illegal street racing, through events designed for community participation. This study specifically looked at public dragracing events, titled “Street Fights,” held at a professional dragway. The purpose of this study was to 1) examine drivers’ awareness of the event’s social responsibility initiatives with Street Fight events and 2) determine if these initiatives are promoting behavioral changes in drivers. Drivers at Street Fight events were surveyed (n=77, 60% response rate) on their levels of awareness of the venue’s social responsibility initiatives, as well as, the event and venue’s overall influence on positive social change within the community. Results showed that Street Fight racers seem to be aware that the events were created to offer a safe, legal, and affordable place to dragrace. Street Fight racers also indicated they were less likely to engage in excessive speeding on open roadways due to their participation in Street Fight events.

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Hassan, Syed Saeed-Ul. "Rapid immunological methods for analysis of dexamethasone in equine urine." Thesis, University of Sunderland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245822.

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Kalunta, Anita Olanma. "Race, drug trials and claims-making." Thesis, Brunel University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262538.

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Ravelli, Umberto. "Aerodynamics of a 2017 Formula 1 Car: Numerical Analysis of a Baseline Vehicle and Design Improvements in Freestream and Wake Flows." Doctoral thesis, Università degli studi di Bergamo, 2019. http://hdl.handle.net/10446/128609.

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In this work an extensive numerical analysis of open-wheeled racing car aerodynamics is presented. The whole CFD workflow, from meshing to calculation, was carried out by the open-source software OpenFOAM®, in the steady RANS framework. After investigating the mechanisms behind ground effect by means of simple test cases, including a diffuser-equipped blunt body and a single element wing, attention was focused on the 2017 Formula 1 car designed by the British constructor ©PERRINN. The validation of the numerical results in terms of drag, downforce, efficiency and front balance was accompanied by a qualitative study of the flow around the car. Axial vorticity plays a key role in the generation of downforce and the use of ground effect improves the efficiency of the overall vehicle. In the second step of the research, it was found that front and rear ride height have a strong influence on the dynamic behaviour of the car. Since racing implies a close interaction with other vehicles, the core of the research was devoted to evaluation and subsequent improvement of aerodynamic performance in wake flows. Tandem-running simulations at different distances between lead and following cars put in evidence that running in slipstream results in a strong worsening of downforce and a dramatic change in front balance. To overcome these limitations, the baseline vehicle was subjected to a targeted aerodynamic development. Among the tested aero packages, one in particular provided encouraging results: it ensures higher downforce and efficiency than the baseline configuration while fulfilling, at the same time, the goal of reducing the above mentioned performance worsening in slipstream. The concepts behind the effectiveness of the new design deal with a better management of the chaotic flow underneath the car; moreover, underbody and rear wing adjustments contribute to generation of a shorter and narrower wake. Overall, an easier approach to the lead car and a safer overtaking could be achieved through small modifications to 2017 F1 Technical Regulations, without disrupting the current F1 car layout. As a further check of the robustness of the new design proposals, all the developed aerodynamic configurations have been tested in yawed flow. Finally, the last section of the research aimed at quantifying the lap-time performance of the vehicles equipped with the new aero packages, since each track requires specific levels of downforce and efficiency. Results in terms of aerodynamic specifications are in line with those typically encountered in current F1 grand prix races.

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Lanaway, Danni A. "Perceived Racial Discrimination and Motivations for Illicit Substance Use among Black College Student Drug Users." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1446546551.

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Morrison, Roxanne. "The development of an in vitro system for the production of drug metabolites using microsomal enzymes from bovine liver." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1007698.

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Drug metabolism is a specialised subset of xenobiotic metabolism, pertaining to the breakdown and elimination of pharmaceutical drugs. The enzymes involved in these pathways are the cytochrome P450 family of isozymes. Metabolism is an important factor in determining the pharmacological effects of drugs. The main aim of this study was to develop a system whereby the major metabolites of drugs can be produced in vitro. An in vitro system was developed and optimised using commercially prepared microsomes from rat liver and coumarin (by monitoring its conversion to 7-hydroxycoumarin) as a model. The optimum running conditions for the incubations were 50 μM coumarin, 50 μg protein/ml microsomes, 1 mM NADP⁺, 5 mM G6P and 1U/ml G6PDH incubated for 30 minutes at 38℃. The HPLC method for the detection of coumarin and 7-hydroxycoumarin was also validated with respect to linearity, reproducibility, precision, accuracy and lower limits of detection and quantification. The system developed was then tested using microsomes prepared from fresh bovine liver on these ten drugs of interest in doping control in horse racing: diazepam, nordiazepam, oxazepam, promazine, acepromazine, chlorpromazine, morphine, codeine, etoricoxib and lumiracoxib. The bovine liver microsomes were prepared using differential centrifugation and had activity on a par with the commercial preparations. This in vitro system metabolised the drugs and produced both phase I and II metabolites, similar to those observed in humans and horses in vivo. For example, the major metabolites of the benzodiazepine drug, diazepam, nordiazepam, temazepam and oxazepam as well as the glucuronidated phase II products were all found after incubations with the bovine liver microsomes. The metabolism of the drugs was also investigated in silico using the computational procedure, MetaSite. MetaSite was able to successfully predict known metabolites for most of the drugs studied. Differences were observed from the in vitro incubations and this is most likely due to MetaSite using only human cytochrome P450s for analysis.

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Tamulevich, Jeffrey S. "Perceived differences in self-reported problems with sexual harassment, racial prejudice, and drug misuse amoung USNA varsity athletes." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Jun%5FTamulevich.pdf.

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Thesis (M.S. in Leadership and Human Resource Development)--Naval Postgraduate School, June 2005.<br>Thesis Advisor(s): Armando Estrada, Linda Mallory. Includes bibliographical references (p. 91-94). Also available online.

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Books on the topic "Drag racing"

1

Savage, Jeff. Drag racing. Crestwood House, 1997.

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ill, Lovett Leslie, ed. Drag racing. Capstone Press, 1995.

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Cockerham, Paul W. Drag racing. Chelsea House Publishers, 1997.

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McKenna, A. T. Drag racing. Abdo & Daughters, 1998.

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Holder, Bill. Drag Racing. Magna Bks., 1993.

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Savage, Jeff. Drag racing. Enslow Publishers, 2000.

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Clausen-Grace, Nicki. Drag racing. Rourke Pub., 2009.

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Hintz, Martin. Motorcycle drag racing. Capstone Press, 1996.

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Fishman, Jon M. Cool drag racing cars. LernerClassroom, 2019.

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Hintz, Martin. Pro stock drag racing. Capstone Press, 1996.

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Book chapters on the topic "Drag racing"

1

Szűcs, Gergely, Gergely Bári, and Gábor Sipos. "Method of Validating the Importance of Aerodynamic (Drag) Parameters for Electric Racing Environments." In Vehicle and Automotive Engineering 3. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9529-5_30.

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Gibson, Eliza Rodriguez y. "Chapter 2 Drag Racing the Neoliberal Circuit: Latina/o Camp and the Contingencies of Resistance." In The Un/Making of Latina/o Citizenship. Palgrave Macmillan US, 2014. http://dx.doi.org/10.1057/9781137431080_3.

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Chen, Liang, and Weiping Ren. "Three-Dimensional (3D) and Drug-Eluting Nanofiber Coating for Prosthetic Implants." In Racing for the Surface. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34471-9_4.

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Jenkins, Sarah Tucker. "Spicy. Exotic. Creature. Representations of Racial and Ethnic Minorities on RuPaul’s Drag Race." In RuPaul’s Drag Race and the Shifting Visibility of Drag Culture. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-50618-0_6.

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Edwards, Lionel D., J.-M. Husson, E. Labbé, et al. "Racial and Ethnic Issues in Drug Regulation." In Principles and Practice of Pharmaceutical Medicine. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444325263.ch19.

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Tang, Joy, Aamir Ahmad, and Fazlul H. Sarkar. "The Complexities of Racial Disparity in Breast Cancer." In Breast Cancer Metastasis and Drug Resistance. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5647-6_3.

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Jarlais, Don C. Des, Cathy Casriel, Bruce Stepherson, and Samuel R. Friedman. "Expectations of Racial Prejudice in AIDS Research and Prevention Programs in the United States." In AIDS and Alcohol/Drug Abuse. Routledge, 2022. http://dx.doi.org/10.4324/9781315863962-1.

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White, Helene Raskin, Rolf Loeber, and Tammy Chung. "Racial Differences in Substance Use: Using Longitudinal Data to Fill Gaps in Knowledge." In Drug Use Trajectories Among Minority Youth. Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7491-8_8.

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Serafis, Dimitris. "Chapter 3. Normalizing assimilation in antiracist (con)texts and (re)producing liquid racism." In Exploring the Ambivalence of Liquid Racism. John Benjamins Publishing Company, 2024. http://dx.doi.org/10.1075/pbns.341.03ser.

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This chapter aims to show how liquid racism (Weaver 2016) emerges when assimilationist viewpoints are argumentatively normalized in mainstream (right- and left-wing) political-parliamentary discourses in Greece. I analyze two seminal speeches given by two Greek political leaders, namely PM Kyriakos Mitsotakis (New Democracy; European Peoples’ Party) and Opposition leader, Alexis Tsipras (SYRIZA; European Left), on October 31, 2019, in the Greek parliament; that is, the very day of the vote in favor of the bill proposed by the Ministry of Citizen’s Protection, which outlined the terms according to which international protection would be awarded by the Greek authorities to ‘foreign’ populations. I draw on the framework of Critical Discourse Studies (Wodak and Meyer 2016), employing tools from Social Semiotics (van Leeuwen 2008) and the Argumentum Model of Topics (Rigotti and Greco 2019) to critically examine standpoint-argument couplings inferred in the discursive representations of social actors and realized in the relevant speeches. I conclude that the two Greek politicians under study converge to claims in favor of the assimilation of migrant populations to the Greek context and therefore (re)produce liquid racism, despite their seemingly antiracist attitude and their different ideological and political stance.

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Lacey, Krim K., James S. Jackson, and Niki Matusko. "Racial and Ethnic Influences on Mental Health and Substance Use Disorders: The Case of Caribbean Blacks." In Drug Use Trajectories Among Minority Youth. Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7491-8_16.

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Conference papers on the topic "Drag racing"

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Bayat, Ateayeh, and Félix Chénier. "Modelling Drag Forces on a Wheelchair Racing Simulator." In 11th International Conference on Sport Sciences Research and Technology Support. SCITEPRESS - Science and Technology Publications, 2023. http://dx.doi.org/10.5220/0012223300003587.

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Wiers, Paul C., and A. K. Dhingra. "Four-Link Anti-Squat and Drag Racing Motorcycle Performance: A Parametric Study." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5844.

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Abstract Anti-squat is a transient vehicle suspension parameter which can dramatically affect tractive effort available at motorcycle drive tire. In the drag racing environment, maximizing tractive effort is essential to competitive performance. Tuning a four-link rear suspension to provide anti-squat increases rear tire traction at the starting line, which increases tractive effort and vehicle acceleration performance. Minimization of the time required to initiate and maintain forward acceleration, often considered the most important part of a drag race, enables peak overall race performance to be realized. Utilizing PC based CAD, finite element analysis, and dynamic system analysis software, a motorcycle rear suspension system was designed, built and tested under actual racing conditions. Parametric studies using dynamic theoretical models were conducted for both unsuspended and four-link equipped versions of the same vehicle. Results and conclusions are presented. Based on the results, it is shown the four-link suspension, when applied to a drag racing motorcycle, does provide opportunity for improving tractive effort at the beginning of a race which will improve overall drag racing performance.

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Donikian, Vatche, Joseph Bell, Nadim Khairallah, and Gregory Washington. "Control and Validation of an Autonomous Drag Racing Vehicle." In SAE WCX Digital Summit. SAE International, 2021. http://dx.doi.org/10.4271/2021-01-0101.

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Hassan, Mahedi, Mahmudul Hassan, Mohammad Ali, and M. Ruhul Amin. "Numerical Investigation on Aerodynamic Performance of a Racing Car by Drag Reduction." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-94495.

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Abstract Recent energy crisis has forced researchers to design fuel-efficient automobiles, where one of the main critical changes is to reduce aerodynamics drag created by fluid friction. At high speed, aerodynamics drag, especially the pressure drag, creates a substantial backward force, and hence, unwanted excess fuel is consumed to counterbalance this dragging effect, which hinders designing fuel-efficient automobiles. Hence, to mitigate this pressure drag, here in this work, numerical analyses have been done (i) to examine drag coefficient changes through incorporating aerodynamic vents at the front, at the rear, and both front and rear on the automobiles, (ii) to reduce drag force by utilizing exhaust gas to fill the low-pressure vortex, (iii) to investigate the effect of wheels on the overall drag resistance of the model. The ANSYS™ 2020 R1 Fluent module is used to perform this numerical simulation. Appreciable improvement on drag reduction can be found by incorporating above mentioned modifications on racing car body configuration.

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Angle, Gerald M., and Wade W. Huebsch. "Aerodynamic Drag Reduction of a Racing Motorcycle Through Vortex Generation." In Small Engine Technology Conference & Exposition. SAE International, 2003. http://dx.doi.org/10.4271/2003-32-0037.

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Forte, Pedro, Daniel A. Marinho, Pedro G. Morouco, and Tiago Barbosa. "CFD analysis of head and helmet aerodynamic drag to wheelchair racing." In 2016 1st International Conference on Technology and Innovation in Sports, Health and Wellbeing (TISHW). IEEE, 2016. http://dx.doi.org/10.1109/tishw.2016.7847775.

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Doval, Peter N., and Ilya V. Avdeev. "Investigation of Riding Position Effects on Time-Trial Bicycle Drag Coefficient at Different Yaw Angles." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88247.

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Time-trial bicycle racing is highly influenced by aerodynamics, perhaps more so than any other form of bicycle racing. Companies competing in this class of racing spend millions of dollars trying to optimize the geometry of the bicycles and the gear each rider wears in order to reduce aerodynamic drag. The idea behind this project was to investigate other ways to optimize the aerodynamic efficiency of the rider, considering that the rider contributes the majority of the drag force of the bicycle-rider system. A large contributor to drag is the frontal area of the object of interest (a silhouette of the object in the fluid flow direction). This illustrates how much the rider’s body contributes to overall drag. If small riding adjustments could be made to the rider’s body during riding, drag may be significantly reduced. This idea and the fact that the direction of wind impacting the rider can vary influenced the concept of this project. It was hypothesized that adjusting the time-trial handlebars on the bicycle to place one of the rider’s hands further aft than the other would influence the upper body to rotate slightly. This could then reduce the frontal area of the rider in the wind direction, therefore reducing the aerodynamic drag. To simulate this situation, a non-contact 3-D digitizer was used to scan a rider aboard a bicycle in a normal riding position and in the above-mentioned, asymmetric position. This 3-D scan was then imported into the computational fluid dynamics (CFD) program Star-CCM+ and several simulations were run. Each of the two riding positions was simulated at differing yaw angles, ranging from −45° to 45°. The initial simulations seem to prove the theory as the asymmetrical riding position experiences decreased drag at significant yaw angles while the normal riding position does not. These results are encouraging and it is desired to continue refinement of the scanning and simulation methods as well as to validate these findings in a wind tunnel.

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Monteiro, Carlos, Moisés Brito, and Diana Filipa da Conceição Vieira. "Numerical Iterative Analysis of Drag Reduction System for a Racing Car Rear Wing." In Automotive Technical Papers. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-5079.

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<div class="section abstract"><div class="htmlview paragraph">In Formula Student competitions, the active adaptation of the aerodynamic components to the current race track conditions can significantly enhance the overall dynamic performance of the car. Due to the abundant low-speed corners, angles of attack of fixed aerodynamic components are usually exaggerated, preventing the car from achieving higher acceleration capabilities due to induced drag. This issue can be tackled by introducing an active drag reduction system (DRS). In this work, a strategy for performing iterative numerical simulations is proposed, with the goal of obtaining a range of different configurations suitable for certain track conditions. Specifically, the case of lowest drag is exploited.</div><div class="htmlview paragraph">Different macros were developed to couple the utilization of computational fluid dynamics tools for aerodynamic analysis with an extensive iterative process with minimal user interference. An initial mesh refinement study was conducted. Afterward, angles of attack and centers of rotation of the two most rear flaps are iterated. The lowest-drag configuration was found to be at <i>α</i><sub><i>flap</i><sub>1</sub></sub> = 0° and <i>α</i><sub><i>flap</i><sub>2</sub></sub> = −6 ° , the latter mostly due to its aerodynamic interaction with the rest of the system. Results show that the angle of attack of flap 2 had the most influence on the overall forces, while varying the centers of rotation had a weaker impact. Nevertheless, combining the investigation of the angles of the attack with the center of rotation yields optimal DRS configuration with the minimum drag. Within one loop of the proposed strategy, a reduction of up to 94<i>.</i>5% in rear-wing drag was found. The strategy proposed can be looped until a configuration is obtained for specific optimization targets, such as drag reduction.</div></div>

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Henderson, Thomas. "Sealed Lead Acid Battery and Supercapacitor Power Configurations for Electric Drag Racing." In 2020 IEEE Green Technologies Conference(GreenTech). IEEE, 2020. http://dx.doi.org/10.1109/greentech46478.2020.9289790.

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Jawad, Badih A., Maria M. Longnecker, Kevin Nagy, and Johanna S. Timmer. "Aerodynamic Drag and Fuel Economy in a Formula SAE Racing Style Vehicle." In Future Transportation Technology Conference & Exposition. SAE International, 2001. http://dx.doi.org/10.4271/2001-01-2554.

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Reports on the topic "Drag racing"

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M, Pamela R., Kristin Meeks, Victoria Smiegocki, and Kenitra Brown. The ABCs of Racial Disparity. SMU Dedman School of Law, 2021. http://dx.doi.org/10.25172/dc.6.

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Data show that Black and White people use marijuana at roughly equal rates. Yet in 2018, in six of Dallas County's biggest cities, Black people were vastly overrepresented in the enforcement of low-level drug crimes. With a look at enforcement trends before the election of District Attorney John Creuzot, this study launches a series of reports about how his reforms have impacted Dallas County.

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Temin, Peter. Mass Incarceration Retards Racial Integration. Institute for New Economic Thinking Working Paper Series, 2021. http://dx.doi.org/10.36687/inetwp155.

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President Nixon replaced President Johnson’s War on Poverty with his War on Drugs in 1971. This new drug war was expanded by President Reagan and others to create mass incarceration. The United States currently has a higher percentage of its citizens incarcerated than any other industrial country. Although Blacks are only 13 percent of the population, they are 40 percent of the incarcerated. The literatures on the causes and effects of mass incarceration are largely distinct, and I combine them to show the effects of mass incarceration on racial integration. Racial prejudice produced mass incarceration, and mass incarceration now retards racial integration.

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Nicosia, Nancy, John MacDonald, and Rosalie Liccardo Pacula. Does Mandatory Diversion to Drug Treatment Eliminate Racial Disparities in the Incarceration of Drug Offenders? An Examination of California's Proposition 36. National Bureau of Economic Research, 2012. http://dx.doi.org/10.3386/w18518.

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Telles, Edward E., Stanley R. Bailey, Shahin Davoudpour, and Nicholas C. Freeman. Racial and Ethnic Inequality in Latin America. Inter-American Development Bank, 2023. http://dx.doi.org/10.18235/0005238.

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This chapter examines socioeconomic inequality in Latin America through the lens of race and ethnicity. We primarily use national census data from the International Public Use Micro Data Sample (IPUMS). Since censuses use inconsistent measures of race and ethnicity, we also draw on two additional measures from the Latin American Public Opinion Project (LAPOP). Unlike censuses, LAPOP data offer a more consistent ethnoracial scheme across countries and a unique interviewer-rated skin color measure. Our study shows that black and indigenous populations and those with darker skin color experience educational, income, and occupational disadvantages, even after controlling for their social origins. However, inequality and hierarchical ordering of Afro-descendants, indigenous peoples, mestizos, whites, and others vary across countries. We include an extended examination of educational inequality in Brazil, the regions largest country. The chapter concludes with an exploration of public policy approaches to address black and indigenous disadvantage across Latin America while also highlighting the case of Brazil, where targeted antiracism policy is most advanced.

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St. John, Haley, and Juliette Scantlebury. A 10-Year Review of Opioid-Related Deaths at West Tennessee Regional Forensic Center: 2007-2017. University of Tennessee Health Science Center, 2021. http://dx.doi.org/10.21007/com.lsp.2019.0005.

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Prescription opioid deaths have tripled since 1999, and currently opioid overdose kills 115 Americans per day on average (1). Prior to 2014, prescription opioids have been the primary driver of opioid-related mortality. In recent years, the United States has seen a steady decline in the rate of opioid prescription. At the same time, there has been a significant increase in the number of deaths attributed to non-prescription opioids such as heroin, illicitly manufactured fentanyl, and fentanyl analogues. In 2017, among 70,237 drug overdose deaths nationally, 47,600 (67.8%) involved opioids, with increases across age groups, racial/ethnic groups, and county urbanization levels in multiple states (2). The opioid epidemic is especially profound in Tennessee, which had the 3rd highest opioid prescription rate in the country in 2017 and an opioid-related death rate of 19.3 deaths per 100,000 persons, compared to the national average of 14.6 (3). This retrospective study analyzes autopsy data from West Tennessee Regional Forensic Center (WTRFC) from 2007 to 2017 to gain a better understanding of the effects of the opioid epidemic on West Tennessee and the surrounding areas. Data from opioid-related accidents and suicides were analyzed in order to identify trends in race, age, gender, location, types of opioids, and drug combinations involved in opioid-related deaths.

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