Toy Car Research Articles

Exploring the Impact of Battery Charge Reduction Rate and the Placement of Chargers on AGV Operation

This paper presents a simulation model to study the effect of the battery charging rate of Automated Guided Vehicles (AGVs) on the overall output of a toy car production environment. This paper uses Modular Petri Nets for modeling and the General Petri Net Simulator (GPenSIM) for model implementation on MATLAB and simulation. The main focus of this paper is to analyze the operational efficiency of AGVs under varying conditions, such as the impact of battery charge reduction rates and the strategic placement of Charging Stations within the production line. By employing Modular Petri Nets implemented with GPenSIM, this paper presents a detailed model that captures the dynamics (movements and interactions) of AGVs in a simulated manufacturing environment. The model is also extensible, as newer functionalities can be added to it as Petri Modules. This paper specifically focuses on two critical operational parameters: (a) the number of AGVs and their battery charge reduction rate; (b) the number of Charging Stations. In summary, the goal, aim, and novelty of this paper is to provide a simpler yet effective model to practitioners so that they can study and experiment without needing advanced mathematical skills.

Short-Term Powered Mobility Intervention is Associated With Improvements in Development and Participation for Young Children with Cerebral Palsy: A Randomized Clinical Trial.

The objective of this study was to evaluate the effects of 2 short-term powered mobility interventions across developmental domains, participation, and perceptions of intervention implementation for young children with cerebral palsy and their families. This randomized, crossover clinical trial compared 2 powered mobility interventions: the Explorer Mini (Permobil AB, Timra, Sweden) and an adapted ride-on toy car. Analyses included 24 children aged 12 to 36months, recruited from 3 sites. Each device was trialed in the home for an 8-week period for a total of 16weeks. Three in-person study visits took place at baseline, crossover, and study completion, and 2 additional virtual check-ins were conducted for each device trial period. Outcome measures included all domains of the Bayley Scales of Infant and Toddler Development, Fourth Edition (Bayley-4); Child Engagement in Daily Life (CEDL) participation questionnaire; and t3 perceptual implementation measures: Acceptability of Intervention Measure, Intervention Appropriateness Measure, and Feasibility of Intervention Measure. Analyses included descriptive statistics, 2 by 3 group × time analysis of variance, and post hoc t tests as warranted. Statistically significant mean improvements were observed in all domains of the Bayley-4 and in the self-care subscale of the CEDL regardless of device order. Caregivers ranked both devices as acceptable and feasible to implement, although the Explorer Mini was ranked slightly more favorably than the adapted ride-on toy car, with a device order effect being observed. Short-term powered mobility intervention may advance multiple domains of development and participation for young children with cerebral palsy. Caregivers rated 2 different powered mobility devices favorably as part of their child's early intervention strategies. This study enhances the quality of evidence available to clinicians and families to support decision-making about powered mobility intervention for young children with motor disabilities, especially those who may be reluctant to begin powered mobility due to stigma or concern for motor skill development.

Bridge Monitoring Using Smartphones Installed on Driving Vehicles: Oriented to Crowdsourcing Model

The acquisition of bridge frequency by using the ubiquitous ordinary passenger vehicles and smartphones in cities has attracted an increasing amount of attention. This study proposes a bridge monitoring method and develops a vehicle–bridge crowdsourcing monitoring (VBCM) platform for public participation. It takes smartphones carried by vehicles as monitoring terminals for a long-term bridge monitoring task. To validate the feasibility of available smartphone brands as a signal collector, a small shake table test is carried out and the processing scheme for the smartphone sampling data is investigated. A smartphone sensor frequency gain technique is proposed to satisfy the fusion of multisensor data in different smartphones. Furthermore, a magnetic target identification technique is proposed to pick up and extract the bridge response signal segment corresponding to the vehicle’s entering and leaving, as well as to eliminate redundant data. To this end, the network of multiple smartphones is synchronized. For the sake of applicability and feasibility, a series of scaled experiments are conducted in the laboratory considering an adapted toy car driving over a simply supported steel bridge. The results demonstrated the practicality of the proposed methodology. The combination of easily accessible smartphones oriented to a crowdsourcing model and a driving vehicle lowers the threshold for the bridge monitoring process, which also pinpoints a potential for future structural health monitoring development.

P32: Poststroke psychosis following pontine lesions in geriatric patients: a case series

Objectives: To analyze psychotic symptoms following pontine stroke to better understand the neuroanatomy underlying the symptoms.Methods: A case series including three cases of poststroke psychosis following pontine lesions and a literature review will be presented.Results: Case 1: 67-year-old female with hypertension, hyperlipidemia, hypothyroidism, chronic kidney disease, and stroke. She presented with daily tactile hallucinations on her left face and neck that felt like a snake wrapped around her, occasional visual and tactile hallucinations of a cat, and occasional sensations that her body was on fire. Initial MRI showed diffuse atrophy, small vessel ischemic changes, and chronic hemosiderin staining of the pons and left superior basal ganglia. Repeat MRI identified bilateral thalamic lacunar infarcts, an old left caudate/corona radiata intracranial hemorrhage, and prior left occipital intracranial hemorrhage. Symptoms were managed with quetiapine 12.5mg daily.Case 2: 74-year-old female with anemia, hypothyroidism, orthostasis, depression, mild cognitive impairment, temporal lobe epilepsy, and two strokes. She presented with near-daily distressing tactile hallucinations of worms, rubber bands, insects, snakes, and toy car wheels in her mouth. MRI showed chronic ischemic changes and central pontine and periventricular white matter lesions bilaterally with mild/moderate atrophy. Multiple medication trials and ECT treatment were aborted due to confusion and paranoia. Symptoms were managed with risperidone 2mg daily.Case 3: 80-year-old female with hypertension, hyperlipidemia, coronary artery disease, atrial fibrillation, gastrointestinal bleed, and depression. She presented with distressing delusions that she was infested with pinworms throughout her gastrointestinal tract, along with visual hallucinations of the worms. MRI showed nonspecific white matter changes and a small T2 hyperintensity in the left pons of either a lacunar infarct or ischemic microangiopathic changes. After a partial hospitalization program enrollment and a subsequent hospitalization, symptoms were managed with risperidone 1.5mg daily.Conclusions: Few case reports exist that describe peduncular hallucinosis, auditory hallucinations, or persistent tactile hallucinations following ischemic or hemorrhagic pontine lesions. The above cases demonstrate additional evidence of tactile and visual hallucinations following pontine stroke in geriatric patients, with imaging data localizing the lesions. Further research is needed to better understand the differing presentations, functional circuits, and neurochemical imbalances of psychosis following pontine lesion to improve diagnosis and treatments.

Phosphorus oxide promoted solid state hydrolysis of sodium borohydride for efficient onsite hydrogen production

The hydrolysis of solid sodium borohydride (NaBH4) as a hydrogen source for portable fuel cells offers the advantages of excellent safety and convenient storage, making it the optimal alternative to NaBH4 solutions. However, the hydrolysis process is relatively slow and requires the addition of a catalyst to enhance its efficiency. Recent studies have demonstrated that introducing H+ can effectively promote the hydrolysis of NaBH4. In this study, therefore, selects solid acid anhydride, phosphorus pentoxide (P2O5), as a promoter for the hydrolysis of NaBH4. By controlling the ratio of H+ to H− in the NaBH4–P2O5 system, the conditions for hydrogen production via NaBH4 hydrolysis are optimized. Subsequently, to cater to the requirements of portable fuel cell applications, the optimal NaBH4–P2O5 hydrogen production system is selected, with hydrogen generation rate being controlled by regulating water flow speed. In order to enhance the practical applicability of NaBH4–P2O5, the scale-up of hydrogen production from this system is also undertaken. Finally, to validate the practicality of this reaction system, integration with a proton exchange membrane fuel cell (PEMFC) toy car using the NaBH4–P2O5 hydrogen generation system is performed. The results indicate that a NaBH4 conversation exceeding 90 % can be achieved when the ratio of H+ to H− is approximately 0.14, and within the range of H+/H− ratios from 0.05 to 0.14, the maximum hydrogen density reached 6 %. Furthermore, it was found that adjusting the water flow rate only impacts the rate of hydrogen production without significantly affecting the NaBH4 conversion, which consistently surpassed 90 %. Similar high NaBH4 conversion, above 90 %, were also attained in the scaled-up experiments of the NaBH4–P2O5 system. When implemented in a 5W PEMFC, this hydrogen production system delivered an output power of approximately 1.76 W, thereby affirming its operational feasibility and effectiveness.

New Museology Approaches in Cultural Heritage Centers

Museums and historical buildings are currently being evaluated for different functions to transfer the social heritage created by the social and cultural values they carry to new generations such as Tofaş Anatolian Cars Museum and Umurbey Bath in Bursa. The museum dedicated to the narration of cultural heritage, presents toy car collections and other periodic toys to visitors in the Carousel exhibition within the historical bath structure as an exhibition space in the new museology concept. The research presents the processes and results of an edutainment project in line with the objectives by examining the exhibition organized by Mido Architecture, Trio Design, and the design studio partnered by the author. To put forth the validity of the study, the research emphasizes the edutainment design process of an architectural user experience concept from an interdisciplinary perspective centered on cultural heritage.

Highly compressive aerogel-elastomer hybrid porous material with redistributed strain for high-sensitive soft pressure sensors

Owing to the good sensitivity and simple fabrication process, flexible piezoresistive pressure sensors based on aerogels shows great applications in soft robotics, bioelectronics and so on. However, the poor compressibility and stability of the aerogel is still challenging the development of aerogel based flexible piezoresistive pressure sensors, simultaneously, it is urgent to pave a way to enhance the sensitivity of these sensors. Here, for the first time, we propose a universal strategy to prepare aerogel skeleton-elastomer shell hybrid porous material with enhanced compressibility for high-sensitive and stable flexible pressure sensors. We found that the elastomer shell disperses the strain in the aerogel skeleton and enhances the compressibility of the aerogel, which improve the stability of the sensor (10000 cycles of compression). More importantly, there are elastomer micro-blocks formed in the hybrid material, these micro-blocks redistribute the strain in the material which contributes to the high sensitivity (10.25 kPa−1) of the sensors. Furthermore, the sensors are successful in monitoring both of the large joint bending and subtle skin vibration, as well as remote controlling toy car and artificial hand. This work provides an effective and universal strategy to enhance the sensitivity and stability of the aerogel based flexible pressure sensors and promotes their development towards practical applications.

Rapid synthesis of Mn-doped NiFe2O4 nanosheet arrays for high-performance hybrid supercapacitors

This research presents an innovative approach to the in-situ fabrication of Mn-doped NiFe2O4 (Mn-NiFe2O4) nanosheet arrays directly on nickel foam substrates. The formation of precursors on the nickel foam substrates is achieved through spontaneous corrosion, followed by a thermal treatment to form the Mn-NiFe2O4 nanosheet arrays. The material's structure and morphology were thoroughly examined, revealing that the addition of Mn transforms the nanoporous structure on the nickel foam into a nanosheet structure. The average thickness of the nanosheets is 30 nm, and their primary composition is Mn-doped NiFe2O4. The resulting highly porous structure of these nanosheets provides numerous active sites and effective electron and ion diffusion channels, thereby increasing charge density and mechanical stability. Electrochemical assays show that the areal-specific capacity of the synthesized electrode material reaches 4.34 C cm−2 (areal-specific capacitance is 8.68 F cm−2) at 1 mA cm−2. Notably, the constructed hybrid supercapacitor achieves a power density of 544 µW cm−2 at an energy density of 390 µWh cm−2. Furthermore, capacitance retention is 95.2% after 5000 charging cycles. Additionally, the assembled device delivers robust and sustained energy output for LED displays and electric toy cars. This method streamlines the production flow of electrode materials, reducing energy consumption while significantly enhancing the areal capacitance of supercapacitors. The assembled hybrid supercapacitor structure diagram and the assembled devices provide power sources for electric toy cars and LED displays.

Design recommendations for voluntary blink interactions based on pressure sensors

Voluntary blink control is vital in eye-controlled human–computer interaction (ECHCI). Pressure sensors, known for their low power consumption and strong resistance to interference, are suitable for blink detection. Existing research has predominantly focused on sensor materials and signal processing, and studies on the characteristics and optimized design of voluntary blink actions in ECHCI remain relatively limited. Therefore, this study presents a blink detection system based on pressure sensors and investigates the efficiency of voluntary blink actions. We examined the effects of two independent variables, blink count (single, double, and triple) and blink side (bilateral and unilateral), on recognition accuracy and three time-related variables. Subsequently, the subjective workload and evaluation experiments were conducted for each blink action. The results indicate that the blink count has a more pronounced impact on interaction efficiency and comfort, with continuous blink actions exceeding three blinks not being recommended. Bilateral blinks were perceived as more natural and comfortable than unilateral blinks. Moreover, we discovered that the participants exhibited greater attentiveness and focus when performing double bilateral blink actions, making it suitable for important commands. Based on the experimental results, the top three recommended voluntary blink actions are single bilateral blink (SB), double bilateral blink (DB), and single unilateral blink (SU). Finally, a test involving controlling the movement of a toy car using the recommended blink actions validates the usability of the actions and detection system. These findings provide valuable guidance for the design and optimization of voluntary-blink interaction systems, further enhancing this interaction method’s feasibility.

Asymmetric sandwiched nanofibrillated cellulose composites prepared by one-pot vacuum filtration for ultrahigh electromagnetic interference shielding

High-efficiency electromagnetic interference (EMI) shielding composite films (EMI shielding effectiveness (SE) value > 100 dB) with a small thickness are imminently desired for eliminating the serious electromagnetic wave pollution. Herein, asymmetric sandwiched silver-coated four-needle zinc oxide whisker/nanofibrillated cellulose/Ti3C2Tx (F-ZnO&Ag/NFC/Ti3C2Tx) composite films consisting of the loose F-ZnO&Ag sedimentary layer and compact upper Ti3C2Tx layer were successful fabricated by a facile one-pot vacuum filtration method in combination with gravity-induced delamination. Arising from the favorable electrical conductivity and unique asymmetric sandwich structure, electromagnetic waves can be trapped and dissipated in the F-ZnO&Ag skeletons and strongly multiply reflected between top Ti3C2Tx layer and bottom F-ZnO&Ag layers. Thereby, F-ZnO&Ag/NFC/Ti3C2Tx-30.4 exhibits the ultrahigh averaged EMI SET of 103.9 dB (the maximal value of 123.8 dB) at a low thickness of merely 209 μm, which is far superior to that of almost all the reported NFC composites at the similar thickness to date. In the real EMI shielding application test, composite films are confirmed to block signal transmission and switch off the toy car system. Such simple and high-efficiency asymmetric sandwich structure design makes a great progress towards preparing and adjusting thin EMI shielding composite films for the promising application prospects in advanced electronics and communication technology.

Proposing and testing a model relating students’ graph selection and graph reasoning for dynamic situations

Using a mixed methods approach, we explore a relationship between students’ graph reasoning and graph selection via a fully online assessment. Our population includes 673 students enrolled in college algebra, an introductory undergraduate mathematics course, across four U.S. postsecondary institutions. The assessment is accessible on computers, tablets, and mobile phones. There are six items; for each, students are to view a video animation of a dynamic situation (e.g., a toy car moving along a square track), declare their understanding of the situation, select a Cartesian graph to represent a relationship between given attributes in the situation, and enter text to explain their graph choice. To theorize students’ graph reasoning, we draw on Thompson’s theory of quantitative reasoning, which explains students’ conceptions of attributes as being possible to measure. To code students’ written responses, we appeal to Johnson and colleagues’ graph reasoning framework, which distinguishes students’ quantitative reasoning about one or more attributes capable of varying (Covariation, Variation) from students’ reasoning about observable elements in a situation (Motion, Iconic). Quantitizing those qualitative codes, we examine connections between the latent variables of students’ graph reasoning and graph selection. Using structural equation modeling, we report a significant finding: Students’ graph reasoning explains 40% of the variance in their graph selection (standardized regression weight is 0.64, p < 0.001). Furthermore, our results demonstrate that students’ quantitative forms of graph reasoning (i.e., variational and covariational reasoning) influence the accuracy of their graph selection.

Iontronic Dynamic Sensor with Broad Bandwidth and Flat Frequency Response Using Controlled Preloading Strategy.

Rapid advancements in human-machine interaction and voice biometrics impose desirability on soft mechanical sensors for sensing complex dynamic signals. However, existing soft mechanical sensors mainly concern quasi-static signals such as pressure and pulsation for health monitoring, limiting their applications in emerging wearable electronics. Here, we propose a hydrogel-based soft mechanical sensor that enables recording a wide range of dynamic signals relevant to humans by combining a preloading design strategy and iontronic sensing mechanism. The proposed sensor offers a two-orders-of-magnitude larger working bandwidth (up to 1000 Hz) than most of the reported soft mechanical sensors and meanwhile provides a high sensitivity (-23 dB) that surpasses the common commercial microphone. The amplitude-frequency characteristic of the proposed sensor can be precisely tuned to meet the desired requirement by adjusting the preloads and the parameters of the microstructured hydrogel. The sensor is capable of recording instrumental sounds with high fidelity from simple pure tones to melodic songs. Demonstration of a skin-mountable sensor used for human-voice-based remote control of a toy car shows great potential for applications in the voice user interface of human-machine interactions.

Flexible rechargeable photo-assisted zinc-air batteries based on photo-active pTTh bifunctional oxygen electrocatalyst

Photo-assisted zinc-air batteries have gained attention for incorporating solar energy, reducing reliance on non-renewable sources, and promoting clean energy adoption. However, currently, the efficiency of the photo-assisted cathode for oxygen reduction/evolution reactions (ORR/OER) remains low, and its application is limited to aqueous zinc-air batteries. Therefore, it is highly necessary to develop bifunctional cathodes with high photo-assisted ORR/OER efficiency and to expand the application of aqueous zinc-air batteries to flexible zinc-air batteries, providing efficient, flexible, and portable power solutions. In this study, we employed pTTh as a bifunctional catalyst in rechargeable zinc-air batteries (RZABs) and utilized solar energy to address the issues of high polarization and low round-trip efficiencies. For photo-assisted pTTh cathode, the Eonset is 0.910 V vs. RHE, E1/2 is 0.831 V vs. RHE, and E10 is 1.99 V vs. RHE. The power density of pTTh cathode-based ZABs is enhanced 56.25 % under illumination. Furthermore, we have pioneered the application of photo-assisted strategy in flexible zinc-air batteries. This photo-assisted pTTh cathode based flexible zinc-air batteries showing the discharge potential of ca. 1.2 V, and the charge potential of ca. 1.8 V at 0.1 mA cm−2 under illumination. Further, under illumination a single photo-assisted flexible zinc-air battery can light up a diode and propel a toy car, and four photo-assisted rechargeable flexible Zn-air pouch batteries (FZAPBs) in series can charge a smartphone.

The use of a video and a small-scale model for rain-induced landslides in geotechnical engineering education

Small-scale physical models of geotechnical problems are thought-provoking didactic tools that motivate students by arousing their curiosity and facilitating the understanding of physical phenomena and theoretical concepts. This work presents the development of an educational video about slope stability failures and its contributing factors. It shows several small-scale models built in a glass wall tank measuring 150 x 50 x 10 cm. Layers of fine gravel were placed on a sloping surface of polystyrene to represent a slope with a layer of residual soil on rock. Toy houses and cars were used to represent anthropogenic agents, and water with dye represents the groundwater flow. Each model depicts a different scenario of shallow slope failure. The objective of the video is to show that most slope failures in urban areas result from natural and anthropogenic factors. Several influence factors are shown: porewater level rise, excavation, surcharge application, and solid urban waste deposition. The 6-minute video has had more than 130,000 views on YouTube. Thanks to its simple and concise language, the video is shown in basic education and science museum, as well as in graduate and undergraduate courses. A questionnaire survey was carried out with undergraduate students to assess how helpful the video was for the learning process. This article explains the construction of the model, the video script, and the strategies for its use, as well as its reception. It was found that the video promoted motivational and learning benefits of providing context, establishing relevance, and teaching inductively.

The Design of Electric Fire Engine

The electric fire engine is based on the single chip microcomputer as the control core. In order to better realize the fire extinguishing function, the latest electric fire engine has added the tracking module, wireless transceiver module, etc., to realize the intelligent fire engine to detect the fire source and extinguish the flame. This design combines the principle of single chip microcomputer with the hardware and software circuit program to realize the function of automatic tracking and fire extinguishing, without the fire personnel risking their lives to carry out on-site operation. This kind of electric intelligent fire truck adds some practical small functions, brings us a lot of convenience, can better serve human beings. The main model of this design is a small toy car model with universal wheel and motor control wheel. The chassis is installed with a variety of sensors with different functions to achieve the purpose of moving forward and backward, steering and avoiding obstacles and eventually extinguishing the fire source. At the same time, the car can also realize wireless remote control. By comparing the shortcomings of the traditional fire truck, some improvements are made, the circuit diagram of intelligent control is designed, and the method of wireless control car for fire fighting is explored with the combination of practice and thinking, so as to further improve the fire truck and make it intelligent. The main purpose of this design is to reduce the fire casualties and improve the need for fire personnel to take the risk of life operation of the traditional fire truck function. Its advantages are automatic tracking, avoidance of obstacles, wireless control, measuring the source of fire.

A Sensorized Toy Car for Autism Screening Using Multi-Modal Features

Early screening, which can lead to early diagnosis and intervention for children with autism (ASD), can significantly improve their life quality. Consequently, the observational process of the ASD diagnosis and the lack of experts make the technology-based ASD screening methods more demanding. On the other hand, early ASD screening based on behavioral patterns is one of the most reliable methods that could be accomplished by analyzing children’s playing patterns. Thus, in this paper, we present an extension of our initial sensorized toy car functionalities by adding shaft encoders to detect attention to details and interest in rotating objects in children with ASD. Using the two modalities to detect different ASD symptoms improved our screening accuracy by more than 10%. Having such a sensorized toy car, which can be used at homes or clinics for screening ASD without high expertise, can improve the life of children with ASD and their families by providing an initial screening for further evaluation. This is essential for sustainable development, especially considering the increased rate of children with ASD around the world.

Multiscale Dot‐Wire‐Sheet Heterostructured Nitrogen‐Doped Carbon Dots‐Ti3C2Tx/Silk Nanofibers for High‐Performance Fiber‐Shaped Supercapacitors

AbstractFiber‐shaped supercapacitors (FSCs) have become one of the significantly strategical flexible energy‐storage materials towards future wearable textile electronics and metaverse technologies. Here, we develop the high‐performance FSCs based on multiscale dot‐wire‐sheet heterostructure microfiber of nitrogen‐doped carbon dots‐Ti3C2Tx/silk nanofibers (NCDs‐Ti3C2Tx/SNFs) hybrids via microfluidic fabrication. Due to the enlarged interlayer spacing, plentiful porous channels, accelerated H+ ion transport dynamics, large electrical conductivity and excellent mechanical strength/flexibility, the NCDs‐Ti3C2Tx/SNFs possesses high volumetric capacitance (2218.7 F cm−3) and reversible charge–discharge stability in 1 M H2SO4 electrolyte. Furthermore, the solid‐state FSCs present high energy density (57.9 mWh cm−3), good capacitance (1157 F cm−3), long‐life cycles (82.3 % capacitance retention after 40000 cycles), which realize the actual energy‐supply applications (powering lamp, watch and toy car).

Multiscale Dot-Wire-Sheet Heterostructured Nitrogen-Doped Carbon Dots-Ti3 C2 Tx /Silk Nanofibers for High-Performance Fiber-Shaped Supercapacitors.

Fiber-shaped supercapacitors (FSCs) have become one of the significantly strategical flexible energy-storage materials towards future wearable textile electronics and metaverse technologies. Here, we develop the high-performance FSCs based on multiscale dot-wire-sheet heterostructure microfiber of nitrogen-doped carbon dots-Ti3 C2 Tx /silk nanofibers (NCDs-Ti3 C2 Tx /SNFs) hybrids via microfluidic fabrication. Due to the enlarged interlayer spacing, plentiful porous channels, accelerated H+ ion transport dynamics, large electrical conductivity and excellent mechanical strength/flexibility, the NCDs-Ti3 C2 Tx /SNFs possesses high volumetric capacitance (2218.7 F cm-3 ) and reversible charge-discharge stability in 1 M H2 SO4 electrolyte. Furthermore, the solid-state FSCs present high energy density (57.9 mWh cm-3 ), good capacitance (1157 F cm-3 ), long-life cycles (82.3 % capacitance retention after 40000 cycles), which realize the actual energy-supply applications (powering lamp, watch and toy car).

Special Report: Autism Spectrum Disorder and Inflexible Thinking—Affecting Patients Across the Lifespan

Special Report: Autism Spectrum Disorder and Inflexible Thinking—Affecting Patients Across the Lifespan

An atypical presentation of a pediatric ocular injury associated with remote-control antenna of a toy car

An atypical presentation of a pediatric ocular injury associated with remote-control antenna of a toy car