Bibliografías temáticas / VEHICLES’ VOLUME

Literatura académica sobre el tema "VEHICLES’ VOLUME"

Autor: Grafiati

Publicado: 11 de septiembre de 2023

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Artículos de revistas sobre el tema "VEHICLES’ VOLUME"

Prihatiningsih, Febriana, Sigit Pancahayani y Subchan Subchan. "Estimasi Kelajuan dan Volume Kendaraan Berdasarkan Model Makroskopik Arus Lalu Lintas Jalan Tol dengan Metode Extended Kalman Filter". SPECTA Journal of Technology 2, n.º 2 (27 de noviembre de 2019): 51–60. http://dx.doi.org/10.35718/specta.v2i2.105.

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In this thesis, the analysis of vehicles' determination of speed and volume in the traffic flow will be discussed by approach time. The analyzation of vehicles' speed and volume done by estimated on macroscopic term of traffic flow in the traffic jam with Extended Kalman Filter (EKF) method. The term of macroscopic views with measured the traffic variable by density the flow rate the flow rate of vehicle and also the vehicle speed's average. In the estimating process, forward difference scheme is implemented to the model and error are measured by Root Mean Square Error. The result showed that the estimation the average of the vehicle’s relative speed in a segment decreased when its volume of vehicle is increased and vice versa.

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Huang, Jianchang, Guohua Song, Jianbo Zhang, Zufen Li, Yizheng Wu y Lei Yu. "The Impact of Pedestrian and Nonmotorized Vehicle Violations on Vehicle Emissions at Signalized Intersections in the Real World: A Case Study in Beijing". Journal of Advanced Transportation 2021 (2 de marzo de 2021): 1–11. http://dx.doi.org/10.1155/2021/8849234.

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Emission around intersections has become an issue in the urban traffic network. This paper aims to investigate the impact of pedestrian and nonmotorized vehicle violations on emissions at mixed-traffic flow intersection based on the volumes of vehicles, nonmotor vehicles, and pedestrians. Also, it focuses on the arterial and collector intersections with high vehicle volume and limited space. Running red light and crossing intersection diagonally are two critical violations, accounting for 91.75% of effective violations (interference with vehicles’ operation). In this context, a violation blocking model is developed to estimate the blocking probability for each vehicle based on the volumes of pedestrians and nonmotor vehicles. The model includes two scenarios. (1) Through phase: the violation blocking model of running red light is developed based on the survival curve (the relationship between waiting time and running red light probability). (2) Left-turn phase: the violation blocking model at this phase includes two parts: (i) crossing the intersection diagonally model is developed for the first vehicle and (ii) running red light model is developed for subsequent vehicles. The existing emission model can estimate the emissions based on the blocking positions. In the case study, emissions increase with the vehicle volume approaching the saturated flow rate and the volumes of nonmotor vehicles and pedestrians increasing. Results show that the maximum emission increase of CO (carbon monoxide) for through phase and left-turn phase can reach 16.7% and 36.4%.

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Xie, Han, Kehong Li y Juanxiu Zhu. "Analysis of the Relationship between Vehicle Behaviors of Changing Lane and Volume of Traffic under Different Operating Ratios of Autonomous Vehicles". Journal of Advanced Transportation 2022 (26 de septiembre de 2022): 1–23. http://dx.doi.org/10.1155/2022/3142483.

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The lane-changing behavior is one of the important causes in traffic accident in congest traffic, and many behaviors of change lane affect volume of traffic. When autonomous driving vehicles are running on road with human-driven vehicles, the effects of change lane on traffic are different. In all human-driven vehicles traffic, the vehicle behaviors of changing lane are more competent. When autonomous driving vehicles are running in mixed traffic, the behaviors of changing lane decrease and the volume of traffic increases. However, a few studies have involved the relationship between traffic volume and lane-change behavior. In a sense, the study of this relationship is good for understanding the operation mechanism of mixed traffic. In this paper, we proposed the linear regression model to describe the relationship between traffic volume and lane-change behavior. The model can be used to establish the basic graph model. Here, we used empirical, simulation, and data-driven methods to obtain data and established a multiple linear regression model. First, we empirically study the continuous traffic with all human-driven vehicles. Then, the corresponding simulation model is established, and the availability of the simulation model is proved by data comparison with empirical study. Finally, 9 rounds of simulation experiments are carried out with the established simulation model. The number of autonomous driving vehicles in each round of simulation experiment increases by 10%. Then, we analyze the data of the behaviors of changing lane and the volume of traffic from simulation experiments. The following was found: (1) an increase in autonomous driving vehicle leads to an increase in traffic volume and a slight decrease in lane changing behaviors; (2) the influence of different proportions of autonomous vehicles on the traffic volume of lanes at different locations is slightly different; and (3) the relationships among the rate of vehicles entering lane, the rate of vehicles exiting lane together, and the volume of traffic show obvious linear relationships with the increase in autonomous driving vehicles. We used multiple linear regression models to carry out description, and the obtained parameter value intervals are close under different operating ratios of autonomous vehicles. To sum up, on multilane roads, especially 4-lane urban expressways, autonomous driving vehicles join in the traffic, which can effectively increase the volume of traffic of each lane while reducing vehicle behaviors of changing lane. The relationships between vehicle behaviors of changing lane and the traffic volume in mixed traffic show linear relationships with the increase in autonomous driving vehicles. In the future, we will further study whether this relationship model can be used in discrete traffic flow.

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Ary Andreo Siregar y Lola Cassiophea. "THE EFFECT OF VEHICLE VOLUME ON DAMAGE TO PINE ROAD IN PALANGKA RAYA CITY". PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan 8, n.º 1 (30 de junio de 2022): 1–9. http://dx.doi.org/10.37304/parentas.v8i1.4364.

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Along with the level of traffic density that crosses the Pinus road, there are several obstacles that cause damage, one of which is the damage that occurs in the road construction section, which is caused by the load of vehicles with excessive loads such as trucks, which further causes damage to the road, namely an increase in volume. heavy traffic every day. Asphalt pavement is generally used on roads that have a fairly dense traffic volume, with the increase in the number of vehicles resulting in damage in a relatively short time than planned. The purpose of this study is to determine the effect of the volume of vehicle types on road damage on asphalt pavement, it can be predicted earlier the value of road damage that will occur, the method used in this study is the method of analyzing vehicle volume on road damage with the regression method. Used to obtain the relationship function with the value of R² (coefficient of determination) which shows the magnitude of the effect of changes in the volume of vehicle types on changes in the value of road damage, this study was carried out on the Pinus road, Palangka Raya City. There is a relationship between the volume of vehicle types and the value of road damage, the results obtained are R² = 0.744 which shows that road damage is influenced by the volume of heavy vehicles, light vehicles and motorcycles with a percentage value of 74.4%. From the results of the equation between heavy vehicles (X1), light vehicles (X2), motorcycles (X3), and the value of road damage Y = 0.159 X1 + 0.034 X2 + 0.017 X3 + 14,189. From these equations it can be described as follows, the regression coefficient (X1) (a) = 0.159 means that a heavy vehicle of 100 vehicles/day will increase the level of road damage by 5.9, the regression coefficient (X2) (b) = 0.034 means a light vehicle of 100 vehicles/day will increase the level of road damage by 3.4, Regression coefficient (X3) (c) = 0.017 means that 100 motorbikes/day will increase the level of damage by 1.7, constant (c) = if there are no vehicles driving passing a road segment, the road will experience road damage of 14,189.

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Surono, Mochammad y Sapto Budi Wasono. "Evaluation of Parking Performance in the Maulana Malik Ibrahim Gresik". SPIRIT OF SOCIETY JOURNAL 3, n.º 1 (30 de marzo de 2019): 11–20. http://dx.doi.org/10.29138/scj.v3i1.982.

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Along with the increase number of employees and pilgrims in Maulana Malik Ibrahim Graveyard from year to year, it certainly has an impact on the increasing volume of vehicles on its parking area. The avaibility of parking area that is not proportional to the volume of vehicles will certainly disrupt the orderliness and comfort of the parking users around Maulana Malik Ibrahim graveyard. The research method used for performance analysis is in the form of field survey by using the data of two wheels and four wheels vehicle parked in that area. In analyzing this parking performance surveyed on July 1st - 5th 2018, it is found that the highest volume of two wheels vehicles is 418 vehicles, with the highest accumulation of 43 vehicles on average the highest duration 209.50 minutes / vehicle, the highest turnover is 0.804, the highest level of parking used is 80.43% and the number of available parking capacity of motorcycles is 230 plots, while the highest number of parking requests is 185 plots. Therefore, the available parking capacity for two wheels vehicle is still quite accommodating the number of vehicles parked. Meanwhile, for four wheels vehicles, it obtained that the highest volume is 442 vehicles, with the highest accumulation of 50 vehicles on average the highest duration of 115.50 minutes / vehicle, the highest turnover is 1,171, the highest level of parking used is 117.14% and the number of available car parking capacity is 140 plots, with highest number of parking requests is 165 plots. Since the number of parking lots is the highest 25 plots, so that the available parking capacity is not enough to accommodate the number of vehicles parked.

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Stokes, Alan H., Daniel C. Kemp, Brenda Faiola, Holly L. Jordan, Christine L. Merrill, James R. Hailey, Randy E. Brown y David W. Bailey. "Effects of Solutol (Kolliphor) and Cremophor in Polyethylene Glycol 400 Vehicle Formulations in Sprague-Dawley Rats and Beagle Dogs". International Journal of Toxicology 32, n.º 3 (24 de abril de 2013): 189–97. http://dx.doi.org/10.1177/1091581813485452.

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When conventional vehicles (eg, methylcellulose and water) impart inadequate physical, chemical, and/or biological properties for proper toxicological assessment of test article formulations, nonconventional vehicles may be considered. Often toxicity data for nonconventional vehicle formulations are limited. Studies were conducted to collect toxicity data from a rodent and a non-rodent species given 2 nonconventional vehicles, Solutol HS15/polyethylene glycol (PEG) 400 and Cremophor RH40/PEG 400, with differing formulations and dose volumes (10 mL/kg for rats; 2 or 5 mL/kg for dogs). In rats, both vehicles caused increase in kidney weights (males only) and decrease in thymic weights (males only) without concurrent microscopic findings; altered urine electrolytes, minimally decreased serum electrolytes (males only), and increased serum total cholesterol (females only) were also present. The Cremophor formulation was also associated with increased serum urea (males only) and urine phosphorus: creatinine. For rats given the Solutol formulation, both genders had decreased urine glucose parameters and males had increased urine volume. In dogs, loose/watery feces and emesis were present given either vehicle, and mucus-cell hyperplasia of the ileum was present given the Solutol formulation. Increased red blood cell mass and decreased urine volume in dogs given 30% Solutol/70% PEG 400 (5 mL/kg/d) were likely due to subclinical dehydration and hemoconcentration. For the Cremophor formulations, dose volume-dependent increased incidence of minimal subepithelial gastric hemorrhage was noted in dogs, and dogs given 5 mL/kg/d showed increased serum urea nitrogen. Overall, regardless of the formulation or dose volume, neither vehicle produced overt toxicity in either species, but the Solutol formulation produced fewer effects in rats. Generally, lower dose volumes minimized the severity and/or incidence of findings.

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Raju, Narayana, Pallav Kumar, Aayush Jain, Shriniwas S. Arkatkar y Gaurang Joshi. "Application of Trajectory Data for Investigating Vehicle Behavior in Mixed Traffic Environment". Transportation Research Record: Journal of the Transportation Research Board 2672, n.º 43 (31 de julio de 2018): 122–33. http://dx.doi.org/10.1177/0361198118787364.

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The research work reported here investigates driving behavior under mixed traffic conditions on high-speed, multilane highways. With the involvement of multiple vehicle classes, high-resolution trajectory data is necessary for exploring vehicle-following, lateral movement, and seeping behavior under varying traffic flow states. An access-controlled, mid-block road section was selected for video data collection under varying traffic flow conditions. Using a semi-automated image processing tool, vehicular trajectory data was developed for three different traffic states. Micro-level behavior such as lateral placement of vehicles as a function of speed, instant responses, vehicle-following behavior, and hysteresis phenomenon were evaluated under different traffic flow states. It was found that lane-wise behavior degraded with increase in traffic volume and vehicles showed a propensity to move towards the median at low flow and towards the curb-side at moderate and heavy flows. Further, vehicle-following behavior was also investigated and it was found that with increase in flow level, vehicles are more inclined to mimic the leader vehicle’s behavior. In addition to following time, perceiving time of subject vehicle for different leading vehicles was also evaluated for different vehicle classes. From the analysis, it was inferred that smaller vehicles are switching their leader vehicles more often to escape from delay, resulting in less following and perceiving time and aggressive gap acceptance. The present research work reveals the need for high-quality, micro-level data for calibrating driving behavior models under mixed traffic conditions.

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Mirdianti, Asti y Paikun. "Pengaruh virus corona (covid-19) terhadap ruas kinerja jalan disekitar pabrik GSI sukalarang". Jurnal TESLINK : Teknik Sipil dan Lingkungan 3, n.º 1 (29 de marzo de 2021): 11–22. http://dx.doi.org/10.52005/teslink.v2i1.18.

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Since the factories began operating, they had an impact in the form of congestion that occurred on Jalan Sukabumi-Cianjur, precisely in front of the P.T. Glostar Indonesia (GSI) at the position of Km.13 until the new road access to PT. Pratama Abadi Industri. However, currently the world is in an uproar with a virus called Corona Virus or Covid-19 which has occurred in the last few months in Indonesia in 2020. Of course this will have an impact on all aspects including the level of road service, so a comparative study of road performance is made. around the GSI Sukalarang factory from Hatun 2017 to 2020. From the survey and calculation results, it can be concluded that the performance of roads with service levels in the current GSI factory area (2020) compared to the previous year (2017) at the same location has decreased which is indicated by reduced vehicle volume, vehicle speed. decreased, reduced vehicle density, and good service levels. From the data obtained, the Covid-19 Pandemic has an effect on traffic volume and road performance, resulting in a decrease in vehicle volume in 2020. In 2017 the traffic volume on Saturdays was 21684 vehicles and 8407.8 SMP / hour, for 2020 on Saturdays, namely 10471 vehicles and 5500.6 SMP / hour decreased by 48.3%. While in 2017 the traffic volume on Monday was 26430 vehicles and 9467.35 SMP / hour, for 2020 Monday, namely 23740 vehicles and 9623.85 SMP / hour decreased by 89.9%.

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Sugari, Herlin, Andyka Kusuma y Robby Yudo Purnomo. "Impact of Overloading Vehicle towards the Level of Service on Freeway Segment (Case Study: JORR KM 27 to KM 23)". IOP Conference Series: Earth and Environmental Science 1000, n.º 1 (1 de abril de 2022): 012019. http://dx.doi.org/10.1088/1755-1315/1000/1/012019.

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Abstract The congestion problem that occurs on the road is one of the indicators to determine the level of service. Approximately 20% of all traffic congestion is due to the existence of shockwave jams or phantom jams. One of the factors causing the shock wave phenomenon is the speed differences between heavy vehicles and light vehicles (Garber & Hoel, 2009). On the other hand, the Over Dimension and Over Loading (ODOL) Vehicle worsened the situation by reducing operational speed due to the exceeding load. Indonesia Traffic Police stated that throughout 2019 there were 136.470 vehicles out of 1.376.956 offences that were ODOL vehicles. This research aims to identify the effect of overloading vehicles and the volume of heavy vehicles on creating shock wave phenomenon that led to the lower level of service. Microsimulation modelling is carried out to obtain the resulting level of service from heavy vehicles volume using the primary data from the data collection. The result shows that the large volume of heavy vehicles exacerbated by the presence of ODOL vehicles can cause a temporary change in road speed and lead to a decreased level of service.

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Nicoletti, Lorenzo, Peter Köhler, Adrian König, Maximilian Heinrich y Markus Lienkamp. "PARAMETRIC MODELLING OF WEIGHT AND VOLUME EFFECTS IN BATTERY ELECTRIC VEHICLES, WITH FOCUS ON THE GEARBOX". Proceedings of the Design Society 1 (27 de julio de 2021): 2389–98. http://dx.doi.org/10.1017/pds.2021.500.

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AbstractThe modeling of battery electric vehicles (BEVs) still represents a challenge for vehicle manufacturers. The installation of the new types of components needed for BEVs gives rise to uncertainties in the quantification of parameters like the vehicle's weight. Indeed, vehicle weight plays a key role, since it has a drastic effect on the vehicle's range, which is an important selling point for BEVs. Uncertainties in weight estimation create weight fluctuations during the early development phase and the need to resize components like the electric machine or battery. This in turn affects the components' volume and weight. However, such resizing can also lead to component collision and unfeasibility of the vehicle architecture. To solve this problem and to support concept engineers during the early development phase, an iterative approach is required that is capable of estimating weight and volume fluctuations in the relevant components. The approach should also consider the geometrical interdependencies of the components, to ensure that no collisions occur between them. Taking the gearbox as an example application, this paper presents a novel approach that satisfies these requirements.

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Tesis sobre el tema "VEHICLES’ VOLUME"

Muldoon, Richard C., KheeLoon “Richard” Foo, Hoi Kok “Daniel” Siew, Cheow Siang Ng, Victor Yeo, Teng Chye ”Lawrence” Lim, Chun Hock Sng et al. "CROSSBOW REPORT (CROSSBOW VOLUME 1_". Thesis, Monterey, California. Naval Postgraduate School, 2001. http://hdl.handle.net/10945/7279.

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Includes supplementary material.
Published as received: "volume 1" only.
Distributing naval combat power into many small ships and unmanned air vehicles that capitalize on emerging technology offers a transformational way to think about naval combat in the littorals in the 2020 time frame. Project CROSSBOW is an engineered systems of systems that proposes to use such distributed forces to provide forward presence to gain and maiantain access, to provide sea control, and to project combat power in the littoral regions of the world. Project CROSSBOW is the result of a yearlong, campus-wide, integrated research systems engineering effort involving 40 student researchers and 15 supervising faculty members. This report (Volume I) summarizes the CROSSBOW project. It catalogs the major features of each of the components, and includes by reference a separate volume for each of the major systems (ships, aircraft, and logistics). It also prresents the results of the mission and campaign analysis that informed the trade-offs between these components. It describes certain functions of CROSSBOW in detail through specialized supporting studies. The student work presented here is technologically feasible, integrated and imaginative. The student project cannot by itself provide definitive designs or analyses covering such a broad topic. It does strongly suggest that the underlying concepts have merit and deserve further serious study by the Navy as it transforms itself.

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Veeravagu, Asoka (Asoka Aldous) 1970. "Development of an optimal manufacturing strategy for low-volume specialty vehicles". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84524.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2002.
Includes bibliographical references (p. 83-84).
by Asoka Veeravagu.
S.M.
M.B.A.

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Watson, Eric. "Sun-Synchronous Orbit Slot Architecture Analysis and Development". DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/760.

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Space debris growth and an influx in space traffic will create a need for increased space traffic management. Due to orbital population density and likely future growth, the implementation of a slot architecture to Sun-synchronous orbit is considered in order to mitigate conjunctions among active satellites. This paper furthers work done in Sun-synchronous orbit slot architecture design and focuses on two main aspects. First, an in-depth relative motion analysis of satellites with respect to their assigned slots is presented. Then, a method for developing a slot architecture from a specific set of user defined inputs is derived.

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Kirsch, Michael F. (Michael Frederick). "Low volume niche vehicle assembly in a high volume plant". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35419.

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Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
Includes bibliographical references (p. 119).
by Michael F. Kirsch.
M.S.

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Toth, Kristin Elisabeth 1975. "Effective strategies for low volume vehicle programs". Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/84361.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2003.
Includes bibliographical references (p. 77-78).
by Kristin Elisabeth Toth.
S.M.

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Keogh, Diane Underwood. "Development of a particle number and particle mass emissions inventory for an urban fleet : a study in South-East Queensland". Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/30297/1/Diane_Keogh_Thesis.pdf.

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Motor vehicles are a major source of gaseous and particulate matter pollution in urban areas, particularly of ultrafine sized particles (diameters < 0.1 µm). Exposure to particulate matter has been found to be associated with serious health effects, including respiratory and cardiovascular disease, and mortality. Particle emissions generated by motor vehicles span a very broad size range (from around 0.003-10 µm) and are measured as different subsets of particle mass concentrations or particle number count. However, there exist scientific challenges in analysing and interpreting the large data sets on motor vehicle emission factors, and no understanding is available of the application of different particle metrics as a basis for air quality regulation. To date a comprehensive inventory covering the broad size range of particles emitted by motor vehicles, and which includes particle number, does not exist anywhere in the world. This thesis covers research related to four important and interrelated aspects pertaining to particulate matter generated by motor vehicle fleets. These include the derivation of suitable particle emission factors for use in transport modelling and health impact assessments; quantification of motor vehicle particle emission inventories; investigation of the particle characteristic modality within particle size distributions as a potential for developing air quality regulation; and review and synthesis of current knowledge on ultrafine particles as it relates to motor vehicles; and the application of these aspects to the quantification, control and management of motor vehicle particle emissions. In order to quantify emissions in terms of a comprehensive inventory, which covers the full size range of particles emitted by motor vehicle fleets, it was necessary to derive a suitable set of particle emission factors for different vehicle and road type combinations for particle number, particle volume, PM1, PM2.5 and PM1 (mass concentration of particles with aerodynamic diameters < 1 µm, < 2.5 µm and < 10 µm respectively). The very large data set of emission factors analysed in this study were sourced from measurement studies conducted in developed countries, and hence the derived set of emission factors are suitable for preparing inventories in other urban regions of the developed world. These emission factors are particularly useful for regions with a lack of measurement data to derive emission factors, or where experimental data are available but are of insufficient scope. The comprehensive particle emissions inventory presented in this thesis is the first published inventory of tailpipe particle emissions prepared for a motor vehicle fleet, and included the quantification of particle emissions covering the full size range of particles emitted by vehicles, based on measurement data. The inventory quantified particle emissions measured in terms of particle number and different particle mass size fractions. It was developed for the urban South-East Queensland fleet in Australia, and included testing the particle emission implications of future scenarios for different passenger and freight travel demand. The thesis also presents evidence of the usefulness of examining modality within particle size distributions as a basis for developing air quality regulations; and finds evidence to support the relevance of introducing a new PM1 mass ambient air quality standard for the majority of environments worldwide. The study found that a combination of PM1 and PM10 standards are likely to be a more discerning and suitable set of ambient air quality standards for controlling particles emitted from combustion and mechanically-generated sources, such as motor vehicles, than the current mass standards of PM2.5 and PM10. The study also reviewed and synthesized existing knowledge on ultrafine particles, with a specific focus on those originating from motor vehicles. It found that motor vehicles are significant contributors to both air pollution and ultrafine particles in urban areas, and that a standardized measurement procedure is not currently available for ultrafine particles. The review found discrepancies exist between outcomes of instrumentation used to measure ultrafine particles; that few data is available on ultrafine particle chemistry and composition, long term monitoring; characterization of their spatial and temporal distribution in urban areas; and that no inventories for particle number are available for motor vehicle fleets. This knowledge is critical for epidemiological studies and exposure-response assessment. Conclusions from this review included the recommendation that ultrafine particles in populated urban areas be considered a likely target for future air quality regulation based on particle number, due to their potential impacts on the environment. The research in this PhD thesis successfully integrated the elements needed to quantify and manage motor vehicle fleet emissions, and its novelty relates to the combining of expertise from two distinctly separate disciplines - from aerosol science and transport modelling. The new knowledge and concepts developed in this PhD research provide never before available data and methods which can be used to develop comprehensive, size-resolved inventories of motor vehicle particle emissions, and air quality regulations to control particle emissions to protect the health and well-being of current and future generations.

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Keogh, Diane Underwood. "Development of a particle number and particle mass emissions inventory for an urban fleet : a study in South-East Queensland". Queensland University of Technology, 2009. http://eprints.qut.edu.au/30297/.

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Mohammadian, Saeed. "Freeway traffic flow dynamics and safety: A behavioural continuum framework". Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/227209/1/Saeed_Mohammadian_Thesis.pdf.

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Congestion and rear-end crashes are two undesirable phenomena of freeway traffic flows, which are interrelated and highly affected by human psychological factors. Since congestion is an everyday problem, and crashes are rare events, congestion management and crash risk prevention strategies are often implemented through separate research directions. However, overwhelming evidence has underscored the inter-relation between rear-end crashes and freeway traffic flow dynamics in recent decades. This dissertation develops novel mathematical models for freeway traffic flow dynamics and safety to integrate them into a unifiable framework. The outcomes of this PhD can enable moving towards faster and safer roads.

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Harris, Turner John. "CONSTRAINED VOLUME PACKING OF DEPLOYABLE WINGS FOR UNMANNED AIRCRAFT". UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_theses/129.

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UAVs are becoming an accepted tool for sensing. The benefits of deployable wings allow smaller transportation enclosures such as soldier back packs up to large rocket launched extraterrestrial UAVs. The packing of soft inflatable wings and Hybrid inflatable with rigid section wings is being studied at the University of Kentucky. Rigid wings are volume limited while inflatable wings are mass limited. The expected optimal wing design is a hybrid approach. Previous wing designs have been packed into different configurations in an attempt to determine the optimal stowed configurations. A comparison of rigid, hybrid, and inflatable wings will be presented. Also a method for simulating optimally packed wings with respect to geometric constraints will be presented. A code has been written to study soft wing packing and verified the soft wing packing results. This code can be used during initial wing design to help predict wing size and packing configurations. In this thesis, an over view of the packing configurations as well as packing observations will be covered such , packing inefficiencies, wing mounting limits, long term storage, and scaling of packing.

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Jomaa, Diala, Siril Yella y Mark Dougherty. "Review of the effectiveness of vehicle activated signs". Högskolan Dalarna, Datateknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:du-11798.

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This paper reviews the effectiveness of vehicle activated signs. Vehicle activated signs are being reportedly used in recent years to display dynamic information to road users on an individual basis in order to give a warning or inform about a specific event. Vehicle activated signs are triggered individually by vehicles when a certain criteria is met. An example of such criteria is to trigger a speed limit sign when the driver exceeds a pre-set threshold speed. The preset threshold is usually set to a constant value which is often equal, or relative, to the speed limit on a particular road segment. This review examines in detail the basis for the configuration of the existing sign types in previous studies and explores the relation between the configuration of the sign and their impact on driver behavior and sign efficiency. Most of previous studies showed that these signs have significant impact on driver behavior, traffic safety and traffic efficiency. In most cases the signs deployed have yielded reductions in mean speeds, in speed variation and in longer headways. However most experiments reported within the area were performed with the signs set to a certain static configuration within applicable conditions. Since some of the aforementioned factors are dynamic in nature, it is felt that the configurations of these signs were thus not carefully considered by previous researchers and there is no clear statement in the previous studies describing the relationship between the trigger value and its consequences under different conditions. Bearing in mind that different designs of vehicle activated signs can give a different impact under certain conditions of road, traffic and weather conditions the current work suggests that variable speed thresholds should be considered instead.

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Más fuentes

Libros sobre el tema "VEHICLES’ VOLUME"

Euritt, Mark A. Cost-effectiveness analysis of TxDOT CNG fleet conversion. Volume one. Austin TX: University of Texas, Center for Transportation Research, 1991.

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James, Weilmuenster K. y Langley Research Center, eds. Single block three-dimensional volume grids about complex aerodynamic vehicles. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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service), SpringerLink (Online, ed. Automotive Mechatronics: Operational and Practical Issues: Volume II. Dordrecht: Springer Science+Business Media B.V., 2011.

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IFAC Workshop on Intelligent Components for Vehicles (1998 Seville, Spain). Intelligent components for vehicles (ICV '98): A proceedings volume from the IFAC Workshop, Seville, Spain, 23-24 March 1998. New York: Published for the International Federation of Automatic Control by Pergamon, 1998.

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Larrimore, Dale G. Pennsylvania Rules of the Road: 2007-2008 Edition (Volume 13 of West's Pennsylvania Practice). Eagan, MN: Thomson/West, 2007.

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Liangdong, Liu y International Conference on Intelligent Autonomous Control in Aerospace (1995 : Beijing, China), eds. Intelligent autonomous control in aerospace: A proceedings volume from the IFAC Conference, Beijing, PRC, 14-16 August 1995. New York: Published for the International Federation of Automatic Control by Pergamon, 1997.

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IFAC Symposium on Automatic Control in Aerospace (14th 1998 Seoul, Korea). Automatic control in aerospace 1998: A proceedings volume from the 14th IFAC Symposium, Seoul, Korea, 24-28 August 1998. New York: Pergamon, 1999.

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Zhongguo qi che gong cheng xue hui. Proceedings of the FISITA 2012 World Automotive Congress: Volume 12: Intelligent Transport System（ITS） & Internet of Vehicles. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

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Capítulos de libros sobre el tema "VEHICLES’ VOLUME"

Daberkow, Andreas, Stephan Groß, Christopher Fritscher y Stefan Barth. "An Energy Efficiency Comparison of Electric Vehicles for Rural–Urban Logistics". En Small Electric Vehicles, 85–96. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65843-4_7.

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AbstractIn many small and medium-sized businesses in rural–urban areas, delivery services to and from customers, suppliers, and distributed locations are required regularly. In contrast to purely urban commercial centres, the distances here are larger. The aim of this paper is to identify opportunities for substituting combustion-engine logistics with lightweight electric commercial vehicles and the limitations thereto, describing an energy efficiency comparison and improvement process for a defined logistics application. Thus, the area of Heilbronn-Franconia and its transport conditions are presented as examples to compare the use case to standard driving cycles. Then the logistic requirements of Heilbronn UAS (University of Applied Science) locations and the available vehicles as well as further electric vehicle options are depicted. Options are discussed for the additional external payload in search of transport volume optimisation without increasing the vehicle floor space. To this end, simulation models are developed for the aerodynamic examination of the enlarged vehicle body and for determining energy consumption. Consumption and range calculation lead to vehicle concept recommendations. These research activities can contribute to the transformation of commercial electro mobility in rural and urban areas in many parts of Germany and Europe.

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Thiyagarajan, R. Atul, A. Adhvaidh Maharaajan, Aditya Basawaraj Shiggavi, V. Muralidharan, C. Sankar Ram, Aayush Karthikeyan, K. T. M. U. Hemapala, V. Berlin Hency y O. V. Gnana Swathika. "Electric Vehicles and Smart Grid". En IoT and Analytics in Renewable Energy Systems (Volume 1), 193–205. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003331117-15.

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Sarikurt, Turev y Abdulkadir Balikci. "A Novel Battery System for Electric Vehicles". En Progress in Clean Energy, Volume 2, 29–40. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17031-2_3.

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Braghin, Francesco, Federico Cheli, Alan Facchinetti y Edoardo Sabbioni. "Design of an Active Seat Suspension for Agricultural Vehicles". En Structural Dynamics, Volume 3, 1365–74. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9834-7_120.

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Goursat, M., M. Döhler, L. Mevel y P. Andersen. "Crystal Clear SSI for Operational Modal Analysis of Aerospace Vehicles". En Structural Dynamics, Volume 3, 1421–30. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9834-7_125.

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Yin, Yaobao. "Application of Pneumatic Technology in Fuel Cell Vehicles". En High Speed Pneumatic Theory and Technology Volume II, 323–49. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2202-4_13.

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Eljazović, Maida y Ermin Muharemović. "Model of Optimization of Cargo Space Volume Utilization in Delivery Vehicles". En New Technologies, Development and Application VI, 722–28. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-31066-9_84.

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James, George, Mo Kaouk y Tim Cao. "Progress in Operational Analysis of Launch Vehicles in Nonstationary Flight". En Special Topics in Structural Dynamics, Volume 6, 59–75. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6546-1_6.

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Liu, Yunxiang, QianXun Guan, Xinxin Yuan y Yue Shi. "Obstacle detection based on semantic segmentation for autonomous vehicles". En Advances in Urban Engineering and Management Science Volume 1, 751–56. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003305026-100.

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Holness, Alex, Hugh A. Bruck y Satyandra K. Gupta. "Flexible Energy Harvesting/Storage Structures for Flapping Wing Air Vehicles". En Fracture, Fatigue, Failure and Damage Evolution, Volume 7, 35–45. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62831-8_6.

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Actas de conferencias sobre el tema "VEHICLES’ VOLUME"

Adelgren, Russell G., David Ray y Patrick Lashinski. "Operational considerations for reusable launch vehicles". En AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.51926.

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"Front Matter: Volume 11415". En Autonomous Systems: Sensors, Processing and Security for Vehicles & Infrastructure 2020, editado por Michael C. Dudzik y Stephen M. Jameson. SPIE, 2020. http://dx.doi.org/10.1117/12.2572759.

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"Front Matter: Volume 10643". En Autonomous Systems: Sensors, Vehicles, Security and the Internet of Everything, editado por Michael C. Dudzik y Jennifer C. Ricklin. SPIE, 2018. http://dx.doi.org/10.1117/12.2501423.

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"Front Matter: Volume 11009". En Autonomous Systems: Sensors, Processing and Security for Vehicles & Infrastructure 2019, editado por Michael C. Dudzik y Jennifer C. Ricklin. SPIE, 2019. http://dx.doi.org/10.1117/12.2536948.

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Croop, Harold C. y Holland B. Lowndes. "Carbon-carbon primary structure for SSTO vehicles". En AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.51907.

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Young, Douglas. "Aircraft operability methods applied to space launch vehicles". En AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.51932.

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Xu, Yanyan, Qing-Jie Kong y Yuncai Liu. "Short-term traffic volume prediction using classification and regression trees". En 2013 IEEE Intelligent Vehicles Symposium (IV). IEEE, 2013. http://dx.doi.org/10.1109/ivs.2013.6629516.

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Patidar, Ashok, Shivdayal Prasad, Umashanker Gupta y Mohan Subbarao. "Commercial Vehicles Muffler Volume Optimization using CFD Simulation". En SAE 2014 Commercial Vehicle Engineering Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-01-2440.

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Rosko, Robert J. y Stephen Loughin. "Safety evaluation of RTG launches aboard Titan IV launch vehicles". En AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.51965.

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Kirillov, E. Ya, B. G. Ogloblin, A. V. Klimov y D. P. Shumov. "Solar thermionic bimodal propulsion and power system for different vehicles". En AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.52118.

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Informes sobre el tema "VEHICLES’ VOLUME"

Melaina, Marc, Brian Bush, Joshua Eichman, Eric Wood, Dana Stright, Venkat Krishnan, David Keyser, Trieu Mai y Joyce McLaren. National Economic Value Assessment of Plug-in Electric Vehicles: Volume I. Office of Scientific and Technical Information (OSTI), diciembre de 2016. http://dx.doi.org/10.2172/1338175.

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Mark, J. Environmental, health, and safety issues of sodium-sulfur batteries for electric and hybrid vehicles. Volume 4, In-vehicle safety. Office of Scientific and Technical Information (OSTI), noviembre de 1992. http://dx.doi.org/10.2172/10107845.

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Johnson, Ray y Malcolm O'Neill. Unmanned Aerial Vehicles in Perspective: Effects, Capabilities, and Technologies. Volume 1. Summary (PR). Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2003. http://dx.doi.org/10.21236/ada438893.

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Muelaner, Jody. Unsettled Issues Regarding Power Options for Decarbonized Commercial Vehicles. SAE International, septiembre de 2021. http://dx.doi.org/10.4271/epr2021021.

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While direct electrification appears to provide the most cost-effective route to decarbonization of commercial vehicles, uptake may be constrained by critical metal supply. Additionally, it will be many years before hydrogen power becomes decarbonized or if it can ever compete economically with direct electrification. An electric road system (ERS) could offer a highly efficient and cost-effective route to direct electrification that would greatly reduce the volume of batteries required, but pilot schemes are urgently needed to provide concrete data on operating costs for different ERS technologies. Furthermore, if plug-in hybrid electric vehicles could obtain most of their power from an ERS, liquid biofuels and “electrofuels” may prove useful for occasional off-grid range extension. To achieve extremely long-range for operation in remote locations, liquid fuels remain the only viable option. Unsettled Issues Regarding Power Options for Decarbonized Commercial Vehicles discusses the analysis required to understand the lifecycle energy use for different power options for decarbonized commercial vehicles.

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Johnson, Ray O., Malcolm O'Neill, Peter Worch, Greg Zacharias y Brian Hunt. Unmanned Aerial Vehicles in Perspective: Effects, Capabilities, and Technologies. Volume 0: Executive Summary and Annotated Briefing. Fort Belvoir, VA: Defense Technical Information Center, julio de 2003. http://dx.doi.org/10.21236/ada426998.

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Tarko, Andrew, Mario Romero, Thomas Hall, Shaikh Ahmad Matin y Cristhian Lizarazo. Evaluation of Alternative Intersections and Interchanges: Volume I—Roundabout Capacity and Rollover Analysis for Heavy Vehicles. Purdue University, diciembre de 2015. http://dx.doi.org/10.5703/1288284316011.

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Cuenca, R., J. Formento, L. Gaines, B. Marr, D. Santini, M. Wang, S. Adelman et al. Total energy cycle assessment of electric and conventional vehicles: an energy and environmental analysis. Volume 1: technical report. Office of Scientific and Technical Information (OSTI), enero de 1998. http://dx.doi.org/10.2172/627823.

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Dahal, Sachindra y Jeffery Roesler. Passive Sensing of Electromagnetic Signature of Roadway Material for Lateral Positioning of Vehicle. Illinois Center for Transportation, noviembre de 2021. http://dx.doi.org/10.36501/0197-9191/21-039.

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Autonomous vehicles (AV) and advanced driver-assistance systems (ADAS) offer multiple safety benefits for drivers and road agencies. However, maintaining the lateral position of an AV or a vehicle with ADAS within a lane is a challenge, especially in adverse weather conditions when lane markings are occluded. For significant penetration of AV without compromising safety, vehicle-to-infrastructure sensing capabilities are necessary, especially during severe weather conditions. This research proposes a method to create a continuous electromagnetic (EM) signature on the roadway, using materials compatible with existing paving materials and construction methods. Laboratory testing of the proposed concept was performed on notched concrete-slab specimens and concrete prisms containing EM materials. An induction-based eddy-current sensor and magnetometers were implemented to detect the EM signature. The detected signals were compared to evaluate the effects of sensor height above the concrete surface, type of EM materials, EM-material volume, material shape, and volume of EM concrete prisms. A layer of up to 2 in. (5.1 cm) of water, ice, snow, or sand was placed between the sensor and the concrete slab to represent adverse weather conditions. Results showed that factors such as sensor height, EM-material volume, EM dosage, types of the EM material, and shape of the EM material in the prism were significant attenuators of the EM signal and must be engineered properly. Presence of adverse surface conditions had a negligible effect, as compared to normal conditions, indicating robustness of the presented method. This study proposes a promising method to complement existing sensors’ limitations in AVs and ADAS for effective lane-keeping during normal and adverse weather conditions with the help of vehicle-to-pavement interaction.

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Ohi, J. M. Environmental, health, and safety issues of sodium-sulfur batteries for electric and hybrid vehicles. Volume 1, Cell and battery safety. Office of Scientific and Technical Information (OSTI), septiembre de 1992. http://dx.doi.org/10.2172/10186035.

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Corbus, D. Environmental, health, and safety issues of sodium-sulfur batteries for electric and hybrid vehicles. Volume 2, Battery recycling and disposal. Office of Scientific and Technical Information (OSTI), septiembre de 1992. http://dx.doi.org/10.2172/10187449.

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