Academic literature on the topic 'Recreational vehicles Noise'
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Journal articles on the topic "Recreational vehicles Noise"
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Rochat, Judy, Herb Singleton, and Keith Yoerg. "Examination of spectral content, peak frequency relationships, and annoyance for unmanned aerial vehicle operations." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 4 (August 1, 2021): 2767–76. http://dx.doi.org/10.3397/in-2021-2222.
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Unmanned aerial vehicles (UAVs) can be used for many purposes, servicing delivery, recreational, utility inspection, and film industries, among others. For some applications, use of UAVs can expose communities to a type of noise not currently experienced, with current noise sources typically related to transportation operations (e.g., aircraft, rail, road noise sources) and home activities (e.g., air conditioning units, lawn care). As such, it is important to understand the type of noise communities will experience with UAV operations. For this paper, a UAV flyover event and hover event are examined in terms of spectral content and the relationship of peak frequencies. In addition, the peak frequencies and relationships are discussed in terms of those typically associated with annoyance.
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Reel, Leigh Ann, Candace Bourland Hicks, and Courtney Arnold. "Noise Exposure and Use of Hearing Protection Among Adolescents in Rural Areas." American Journal of Audiology 31, no. 1 (March 3, 2022): 32–44. http://dx.doi.org/10.1044/2021_aja-20-00196.
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Purpose: Noise-induced hearing loss (NIHL) has been found in rural children, potentially due to occupational and recreational noise exposure without consistent use of hearing protection devices (HPDs). However, questions remain regarding the specifics of rural adolescents' noise exposure and use of hearing protection around different types of noise. As such, the purpose of the current study was to provide preliminary results on rural adolescents' noise exposure and use of hearing protection for gunfire, heavy machinery, power tools, all-terrain vehicles (ATVs), and music. Method: A questionnaire was administered to 197 students (seventh to 12th grade) from rural schools in West Texas. Questions were related to noise exposure and use of HPDs for specific categories of noise. Testing was performed at the schools, with an investigator recording each student's responses. Results: Approximately 18%–44% of adolescents reported exposure 12 or more times a year to gunfire, heavy machinery, power tools, and ATVs. Only 1%–18% of the adolescents reported never being exposed to such noise sources. Almost half of rural adolescents never used hearing protection around gunfire, and 77%–91% reported never wearing hearing protection when exposed to heavy machinery, power tools, and ATVs. Conclusions: The current study revealed that rural adolescents are exposed to noise sources that could damage their hearing. However, the majority of rural adolescents do not consistently wear hearing protection. Additional research is now needed to extend these findings by assessing rural adolescents' duration of exposure to different noise sources, in addition to investigating prevention of NIHL in this population. Supplemental Material https://doi.org/10.23641/asha.17139335
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Iannace, Gino, Giuseppe Ciaburro, and Amelia Trematerra. "Fault Diagnosis for UAV Blades Using Artificial Neural Network." Robotics 8, no. 3 (July 20, 2019): 59. http://dx.doi.org/10.3390/robotics8030059.
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In recent years, unmanned aerial vehicles (UAVs) have been used in several fields including, for example, archaeology, cargo transport, conservation, healthcare, filmmaking, hobbies and recreational use. UAVs are aircraft characterized by the absence of a human pilot on board. The extensive use of these devices has highlighted maintenance problems with regard to the propellers, which represent the source of propulsion of the aircraft. A defect in the propellers of a drone can cause the aircraft to fall to the ground and its consequent destruction, and it also constitutes a safety problem for objects and people that are in the range of action of the aircraft. In this study, the measurements of the noise emitted by a UAV were used to build a classification model to detect unbalanced blades in a UAV propeller. To simulate the fault condition, two strips of paper tape were applied to the upper surface of a blade. The paper tape created a substantial modification of the aerodynamics of the blade, and this modification characterized the noise produced by the blade in its rotation. Then, a model based on artificial neural network algorithms was built to detect unbalanced blades in a UAV propeller. This model showed high accuracy (0.9763), indicating a high number of correct detections and suggests the adoption of this tool to verify the operating conditions of a UAV. The test must be performed indoors; from the measurements of the noise produced by the UAV it is possible to identify an imbalance in the propeller blade.
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Ariante, Gennaro, Salvatore Ponte, Umberto Papa, and Giuseppe Del Core. "Estimation of Airspeed, Angle of Attack, and Sideslip for Small Unmanned Aerial Vehicles (UAVs) Using a Micro-Pitot Tube." Electronics 10, no. 19 (September 22, 2021): 2325. http://dx.doi.org/10.3390/electronics10192325.
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Fixed and rotary-wing unmanned aircraft systems (UASs), originally developed for military purposes, have widely spread in scientific, civilian, commercial, and recreational applications. Among the most interesting and challenging aspects of small UAS technology are endurance enhancement and autonomous flight; i.e., mission management and control. This paper proposes a practical method for estimation of true and calibrated airspeed, Angle of Attack (AOA), and Angle of Sideslip (AOS) for small unmanned aerial vehicles (UAVs, up to 20 kg mass, 1200 ft altitude above ground level, and airspeed of up to 100 knots) or light aircraft, for which weight, size, cost, and power-consumption requirements do not allow solutions used in large airplanes (typically, arrays of multi-hole Pitot probes). The sensors used in this research were a static and dynamic pressure sensor (“micro-Pitot tube” MPX2010DP differential pressure sensor) and a 10 degrees of freedom (DoF) inertial measurement unit (IMU) for attitude determination. Kalman and complementary filtering were applied for measurement noise removal and data fusion, respectively, achieving global exponential stability of the estimation error. The methodology was tested using experimental data from a prototype of the devised sensor suite, in various indoor-acquisition campaigns and laboratory tests under controlled conditions. AOA and AOS estimates were validated via correlation between the AOA measured by the micro-Pitot and vertical accelerometer measurements, since lift force can be modeled as a linear function of AOA in normal flight. The results confirmed the validity of the proposed approach, which could have interesting applications in energy-harvesting techniques.
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Deokar, Gaurav N. "Analysis for need of Non-Motorised Transport (NMT) facilities in Khamgaon city." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (August 31, 2021): 1108–13. http://dx.doi.org/10.22214/ijraset.2021.37557.
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Abstract: In our day to day life we have seen the emission from transport sector is increasing. Along with carbon emissions, the transport sector is also responsible for road congestion, local air pollution, noise and accidents. In urban areas, the share of both public transport and NMT has been decreasing, resulting in increasing negative impacts. Therefore development of NMT in the cities is very important. NMT comprises of walking, Cycling, wheel chair travel and small wheeled transport etc. This transport facilities fulfill transportation as well as recreational objectives as these are ecofriendly modes. Previous planning only focus on movement of MT and there is no planning for NMT but the scenario is most of the short trips upto 5km in our country are carried out by walking and cycling.. NMT promotes health as well as social equality and is free from pollution which makes it ecofriendly. NMT are affordable to all classes which maintains social equality among citizens. Present Indian scenario shows undermining of importance and safety of NMVs in Indian cities. In India it should be taken seriously to priorities the use of NMT and focus on implementation of this facilities, maintenance and operation of this system. The governments should run the programs to encourage the people to move towards the use of NMT. This study aims to determine the need of NMT facilities within the city and people views regarding existing traffic conditions along main streets within the city. The city is divided in different parts as per wards and quessionnaire survey is carried out to know people views. The overall study shows the need for the provision of NMT facilities like footpaths, cycle ways, croos points at main streets within the city. Keywords: NMT- Non Motorised Transport, NMV- Non Motorised Vehicles, MT- Motorised Transport
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Čižiūnienė, Kristina, Jonas Matijošius, Audrius Čereška, and Artūras Petraška. "Algorithm for Reducing Truck Noise on Via Baltica Transport Corridors in Lithuania." Energies 13, no. 24 (December 8, 2020): 6475. http://dx.doi.org/10.3390/en13246475.
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The section of Via Baltica going through the territory of the Republic of Lithuania is the most traffic intensive land logistics corridor in the country. The annual transportation volume has been increasing on this road; thus, the reduction of pollution caused by vehicles has become important. If gas emissions are regulated, and carriers have to pay pollution taxes, this does not apply to noise levels. The article presents the traffic intensity in this logistics corridor, measurements of the noise level at the characteristic points, its relation to the number of vehicles passing through it and an expert evaluation of proposed methods for noise energy reduction. Environmental noise is an unwanted or harmful sound that propagates in terms of both duration and geographical coverage. Noise is associated with many human activities, but road, rail and air traffic noises have the greatest impact. Due to irrationally arranged transport network, the transit flow of freight transport crosses residential areas of the city, places of rest and recreation of the population, causing high noise levels in adjacent areas. This is the biggest problem for the urban environment. Environmental noise affects many Europeans and is therefore considered by society to be one of the biggest environmental problems. This article presents an assessment of a new traffic noise algorithm. The presented expert survey on noise energy reduction allows choosing the most appropriate method for reducing noise energy in Via Baltica transport logistics corridor. Based on the expert survey, a hierarchical table for noise energy reduction was compiled. It will allow assessing the validity of individual noise energy reduction solutions. It has become relevant for improving infrastructure of other transport corridors and choosing the most appropriate solutions to reduce vehicle noise pollution. A further application of this model can be focused on economic evaluation, forecasting of expected benefits and so on.
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Barber, J. "Chronic Anthropogenic Noise Exposure and Songbird Hearing." UW National Parks Service Research Station Annual Reports 31 (January 1, 2008): 61–64. http://dx.doi.org/10.13001/uwnpsrc.2008.3703.
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As human populations have increased, our impact can now be felt even in the deepest remnants of wilderness (Vitousek et al. 1997). The resource demands of the ever-increasing human enterprise are creating substantial amplification of man-made pollution, including noise production. The dominant sources of anthropogenic noise are transportation networks, development (including energy, urban and industrial) and recreational activities. These activities are increasing faster than population growth. Between 1970 and 2007 the US population increased by approximately one third whereas (http://www.census.gov/compendia/statabO traffic on US roads nearly tripled, to almost 5 trillion vehicle kilometers per year, (http://www.thwa.dot.gov /ohim.tutw/tvpage.cfm.) Similar trends in shipping noise have also been observed in marine ecosystems, as discussed in reviews of noise impacts on marine animals (e.g., Nowacek et al. 2007).
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Merza, Taghreed Reyadh, and Mohammed Abbas Al-Jumaili. "A Review of Studying the Relationship of Traffic Stream Characteristics and Noise Intensity with Flexible Pavement Surface Condition." IOP Conference Series: Earth and Environmental Science 961, no. 1 (January 1, 2022): 012086. http://dx.doi.org/10.1088/1755-1315/961/1/012086.
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Abstract In general, roads are a very important infrastructure to facilitate people’s access to their social and economic activities, so knowing the things that affect the efficiency of these roads is very important and how to maintain them. One of the aims of this research is to shed light on previous studies that showed the relationship between traffic characteristics and noise intensity on the condition of the breakable Pavement. The results of previous studies show that flexible Pavement has 19 potential failures and how to address them. There is a relationship between the characteristics of traffic flow and failures that occur in flexible paving. It is also possible to calculate the road condition by knowing the types of faults on the road using several roads or by using specific formulas to calculate the road condition index. There are relationships between the road condition index, the vehicles’ speed, and the models that link Noise to speed. And that most of the relationships that were used to calculate the elastic pavement condition index and its relationship to the movement characteristics are statistical relationships using ANOVA, recreation, and R2
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Makai, Péter. "Video Games as Objects and Vehicles of Nostalgia." Humanities 7, no. 4 (November 25, 2018): 123. http://dx.doi.org/10.3390/h7040123.
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Barely 50 years old, video games are among the newest media today, and still a source of fascination and a site of anxiety for cultural critics and parents. Since the 1970s, a generation of video gamers have grown up and as they began to have children of their own, video games have become objects evoking fond memories of the past. Nostalgia for simpler times is evident in the aesthetic choices game designers make: pixelated graphics, 8-bit music, and frustratingly hard levels are all reminiscent of arcade-style and third-generation console games that have been etched into the memory of Generation X. At the same time, major AAA titles have become so photorealistic and full of cinematic ambition that video games can also serve as vehicles for nostalgia by “faithfully” recreating the past. From historical recreations of major cities in the Assassin’s Creed series and L. A. Noire, to the resurrection of old art styles in 80 Days, Firewatch or Cuphead all speak of the extent to which computer gaming is suffused with a longing for pasts that never were but might have been. This paper investigates the design of games to examine how nostalgia is used to manipulate affect and player experience, and how it contributes to the themes that these computer games explore. Far from ruining video games, nostalgia nonetheless exploits the associations the players have with certain historical eras, including earlier eras of video gaming. Even so, the juxtaposition of period media and dystopic rampages or difficult levels critically comment upon the futility of nostalgia.
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Makarova, Irina, Vadim Mavrin, Damir Sadreev, Polina Buyvol, Aleksey Boyko, and Eduard Belyaev. "Rational Organization of Urban Parking Using Microsimulation." Infrastructures 7, no. 10 (October 18, 2022): 140. http://dx.doi.org/10.3390/infrastructures7100140.
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Urbanization, which causes the need for population mobility, leads to an increase in motorization and related problems: the organization of parking spaces in cities, both near work places and recreational spaces, and not far from residential locations. This has a number of consequences. Therefore, the occupation of parking spaces near shopping centers and sports and recreation facilities, intended only for customers of these organizations, makes it difficult for direct customers to access services. This forces potential customers to look for a parking space in adjacent areas, often far from the target location. At the same time, the search for a parking space is stretched over time, negatively affecting the environment in the form of emissions and noise. On the other hand, there is a risk of losing a client. In the course of the study, we have analyzed the state of the problem and the directions of research on parking management in cities, and then we have studied the possibilities of using simulation models to find rational options for the organization of access to parking spaces and further using such models in decision support systems (DSS) as an intellectual core. The literature review showed that this is the most adequate option for an intelligent city parking space management system. At the same time, the environmental factor must also be taken into account. Research methods are based on field studies of traffic flows and emissions near parking places, and mathematical and simulation modeling. The proposed system will allow the evaluation of the effectiveness of the proposed changes in the organization of access to parking spaces, and, in the future, when implementing the obtained optimal solution, in practice, provide customers with a guaranteed parking space and reduce traffic and emissions. The introduction of such a system guarantees its quick payback, which is associated with the efficiency of use, as well as with the additional effects obtained from its implementation (improving the road situation, reducing vehicle emissions, solving social problems of the population, etc.), which is especially important for medium and small cities with limited budgets.
Conference papers on the topic "Recreational vehicles Noise"
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Moritz, Charles T. "The Design of an Acoustics Laboratory for Off-Highway, Heavy Truck, and Recreational Vehicles." In SAE 2003 Noise & Vibration Conference and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-1680.
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