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This study addresses the increasing demand for eco-friendly rubber compounding additives by exploring greensynthesized zinc oxide (ZnO) nanoparticles. The green synthesis of ZnO nanoparticles is gaining attention due to its ecofriendly approach and potential applications. This study investigates the synthesis of ZnO nanoparticles using sweet lime peel extract as a green method, comparing it with chemical synthesis. The obtained nanoparticles are characterized and evaluated for suitability as activators in natural rubber composites for tire applications. Furthermore, the cytotoxicity of the prepared ZnO nanoparticles on mice cells is assessed, revealing lower toxicity for green-synthesized ZnO compared to chemically synthesized ZnO. Payne effect analysis on the composites demonstrates improved polymer-filler interaction and mechanical properties for the green-synthesized ZnO-loaded composites. Notably, the incorporation of green-synthesized ZnO leads to significant enhancements in tensile strength due to its higher surface area. It achieves desirable magic triangle tire properties, including low rolling resistance, high wet traction, and high abrasion resistance. These findings highlight the promising potential of green ZnO as an environmentally friendly alternative to chemical ZnO in rubber compounding. [ABSTRACT FROM AUTHOR]

The primary cause of noise from vehicular traffic while travelling at speeds over 30 km/h is tyre/road interaction. To reduce this noise source, tyre/road sound emissions research has been carried out using different approaches. Most of this research has been centred around track tests, leading to the development of various track and road-based methods for evaluating tyre/road noise emissions. The CPX (Close-Proximity), along with the CPB (Controlled Pass-By), the CB (Coast-By) and the SPB (Statistical Pass-By), methods are the most common ones. Nevertheless, since Reg. (EC) 1222/2009 came into force, only the CB method, defined in Reg. (EC) 117/2007, can be used to obtain tyre/road noise emission type approval values in Europe. However, current track test methods have important limitations, such as the variability of the results depending on the test track or the test vehicle, the repeatability, the influence of environmental variables or, the main aspect, the limitation of the registered magnitude in these tests, which is the sound pressure level. The Alternative Drum test method (A-DR) was developed in 2015 in order to avoid these disadvantages. However, it involves a complex and time-consuming microphone array for each test. With the purpose of improving the A-DR test method, a new methodology based on drum tests, the ISO 11819-2 and the ISO 3744 standards, was developed. This paper describes the new Alternative CPX Drum test method (A-CPX-DR) and validates it by testing several tyres according to the CB, the A-DR and the A-CPX-DR test methods and comparing their results. This research has demonstrated that all three methods have equivalent sound spectra and obtain close equivalent sound pressure levels for type approval of tyres in the EU, while drum tests have shown greater accuracy. For both reasons, the new A-CPX-DR methodology could be used for tyre/road noise emission type approval in a more precise and cheaper way. [ABSTRACT FROM AUTHOR]

The primary cause of noise from vehicular traffic while travelling at speeds over 30 km/h is tyre/road interaction. To reduce this noise source, tyre/road sound emissions research has been carried out using different approaches. Most of this research has been centred around track tests, leading to the development of various track and road-based methods for evaluating tyre/road noise emissions. The CPX (Close-Proximity), along with the CPB (Controlled Pass-By), the CB (Coast-By) and the SPB (Statistical Pass-By), methods are the most common ones. Nevertheless, since Reg. (EC) 1222/2009 came into force, only the CB method, defined in Reg. (EC) 117/2007, can be used to obtain tyre/road noise emission type approval values in Europe. However, current track test methods have important limitations, such as the variability of the results depending on the test track or the test vehicle, the repeatability, the influence of environmental variables or, the main aspect, the limitation of the registered magnitude in these tests, which is the sound pressure level. The Alternative Drum test method (A-DR) was developed in 2015 in order to avoid these disadvantages. However, it involves a complex and time-consuming microphone array for each test. With the purpose of improving the A-DR test method, a new methodology based on drum tests, the ISO 11819-2 and the ISO 3744 standards, was developed. This paper describes the new Alternative CPX Drum test method (A-CPX-DR) and validates it by testing several tyres according to the CB, the A-DR and the A-CPX-DR test methods and comparing their results. This research has demonstrated that all three methods have equivalent sound spectra and obtain close equivalent sound pressure levels for type approval of tyres in the EU, while drum tests have shown greater accuracy. For both reasons, the new A-CPX-DR methodology could be used for tyre/road noise emission type approval in a more precise and cheaper way.

This article serves as a continuation of our exploration into "Achaemenid Phoenicia," following our previous work on "Persian influence on Phoenician architecture. In this research, we delve into additional available evidence concerning Achaemenid Phoenicia, along with pertinent historical sources. Our primary objective is to provide a more holistic view of Persian influence on Phoenicia. The next step is to offer possible corrections or complements to the results of previous paper, which focused on the presence and dominance of the Achaemenids in the region, the non-uniformity of Persian elements in the architecture of Phoenician city-states, and the absence of a connection between the importance of a city-state and the extent of Persian influence on it. By studying additional evidence, we surmise that Persian influences were popular among the upper class and, to some extent, the middle class of society. When it comes to royal art, the evidence from Sidon indicates a notable influence, whereas that from Tyre suggests a certain conservatism, despite the significance of the city-state. However, other movable findings discovered in the territory of Tyre reveal Persian influence, indicating the lack of conservatism among the elites of Tyre in contrast to their local royal court. Regarding the entry of Persian elements into Phoenicia, the available evidence suggests that the presence of Persian officials in Phoenicia, as well as Phoenicians who visited centers such as Susa and Persepolis, could have been two major factors in this cultural penetration. Overall, our findings support and enhance those of our previous study. [ABSTRACT FROM AUTHOR]

The presence of the Achaemenid Persians and the archaeological materials that they left in their territories have always been regarded as important topics. Phoenicia was one of their prized dominions. Considering the historical importance of the pioneering universal empire of the Achaemenids as well as the significance of the Phoenician civilization, the study of their interactions would be invaluable. After a historicalgeographical introduction and an overview of the role and status of Phoenicia in the history of the Achaemenid Empire, the present research has focused on Phoenician architecture. The questions addressed in this study are: To what extent can Persian influence be observed in the architectural findings recovered from Achaemenid Phoenicia? To what extent did each Phoenician city-state adopt Achaemenid architectural elements? The study of available sources and reports indicated that the Persian influence on Phoenician architecture, despite its insignificance, demonstrates the presence and dominance of the Achaemenid style. Furthermore, the extent of Persian influence on different city-states was not equal, and did not depend on the prominence of a city-state. It even seems that there was no special requirement for the application of Achaemenid elements. It should be noted that architectural findings only constitute a part of the available material. Obviously, in order to achieve a more comprehensive result regarding the research topic, other data from Achaemenid Phoenicia should also be considered. [ABSTRACT FROM AUTHOR]

Intelligent manufacturing is a way to expand industrial manufacturing by integrating artificial intelligence and device technologies to provide great solutions to solve complex problems and improve industrial processes. Artificial intelligence has been used in intelligent manufacturing for monitoring and optimization processes, focusing on improving efficiency. This paper examines the predictive performance of six machine learning algorithms for modeling tyre weight in smart tire manufacturing from real data. The main contribution of this research is developing a scheme solution that uses machine learning algorithms to industrial processes in stored data large manufacturing processes, allowing the process engineer to manage the finished products and the process parameters. The proposed relevance vector machine is compared with other algorithms such as support vector machine, artificial neural network, k-nearest neighbors, random forest, and model trees. RVM algorithm presented the smallest measures of squared error and better performance than the other algorithms. This novel approach accurately predicts tyre weight patterns during production using machine learning algorithms to analyze relevant features and detect anomalies based on predicted process data. [ABSTRACT FROM AUTHOR]

The behavior of customers toward MRF Tyre, particularly in Tirupur city, is the subject of this survey. The purpose of the study was to examine customer satisfaction with MRF tyre, to determine which media outlets encourage consumers to purchase MRF tyre and to ascertain the degree of satisfaction with various MRF tyre components. One source of primary data is a questionnaire. In Tirupur city, a survey was conducted, and 120 people responded. Secondary data for the study was gathered from relevant journals and websites. For this study, non-probability sampling strategies were employed. The statistical tools employed were one-way ANOVA and simple percentage analyses. Developed a hypothesis and tested it using the reliability and normality tests. Results of the analysis showed that most respondents were influenced by friends and that they were generally happy with the different aspects of MRF Tyre. In conclusion, the majority of Tirupur city residents who use MRF tyre for their vehicles felt that the tyre were both comfortable and reasonably priced.

The Franco-Lebanese mission in Tyre identified a stone dump comprising more than a thousand fragments of architectural members and liturgical furnishings, located in an ancient cistern. These fragments, mainly of marble, but also of limestone, basalt and marine sandstone, had been collected during excavation works carried out on the site in the 1960s and 1970s. After their discovery, all the blocks were removed from the cistern, inventoried, documented and studied in order to identify their various functions and origins. A large part of these fragments seem to have belonged to various Byzantine religious monuments. The article presents the main types to which these fragments have been assigned, following a comparative approach.

Fracture is one of the failure modes of a material or product which may occur during its manufacturing process or its usage. Fractography is the science and art of examination and analysis of the fractured surface. Texture and nature of the fractured surface provide valuable information on origin of a crack and crack propagation; thereby, it helps to understand the mechanism of fracture and facilitate to identify the likely causes of failure. This review covers an extensive study on various types of fractures of steel cord and bead wire which are primarily used in rubber composites viz tyre, conveyor belt etc. Different types of fractures studied include ductile, central burst, brittle, fatigue, torsion, corrosion, delamination and weld fractures. Fundamentals on specific characteristics of each type of fracture and their likely causes have been elaborately discussed Microscopic examination through scanning electron microscope (SEM) provides deeper insights of the fractured surface as well as microstructure of material. In addition to the fundamental aspects of fractures, examples of different types of fractured samples have been illustrated in this article. This focused review would be useful to the steel cord and bead wire manufactures as well as to tyre manufacturers for detailed failure investigation of material/product and thereby to take appropriate corrective measures. Graphical Abstract [ABSTRACT FROM AUTHOR]

A winery complex uncovered at eṭ-Ṭuweiri, Western Galilee, joins only three published, and several unpublished wineries established in northern Israel in the Roman period. The winery continued to operate in the Byzantine period and went out of use late in the Umayyad period. The article presents the history of research of the site, the excavation and the finds, including pottery, coins and metal objects, as well as inscriptions found at the site in the excavation and in the past. An inscription set in the mosaic floor of one of the treading floors of the winery was dated by the era of Tyre to 564 CE, affording a rare opportunity to reexamine the question of the geographical boundary between the dioceses of Tyre and 'Akko-Ptolemais in the Byzantine period and the Christian settlement in the region at the time. [ABSTRACT FROM AUTHOR]

In recent years, studies on the use of car tyre wastes in concrete have gained momentum. Especially, the effect of recycled waste steel wires (RWSWs) from tyres to be mixed into concrete for using in newly designed reinforced concrete buildings on the performance of construction elements is a fairly new research area. In this study, the bending behaviour of 12 reinforced concrete beams was investigated having 1/3 geometric scale, 100 × 150 × 1000 mm in size, and produced with RWSWs additive in different volumetric ratios (1%, 2%, and 3%) under vertical loads. Another main parameter selected in the study was the amount of varying tension reinforcements (2ϕ12, 2ϕ10, and 2ϕ8). The load-carrying, stiffness, ductility, and energy dissipation capacities of the RWSW reinforced bending beams were compared with the primary aim of this study which was to examine and present the contribution of RWSWs on the improvement of the bending performance of the reinforced concrete beams. The results revealed that the mechanical properties of the hybrid beams with RWSWs vary depending on dosages but are comparable with those of the beams-only with the same fibre dosage. A positive effect was obtained for the hybrid beams containing 2–3% RWSWs. Besides, RWSWs were found to be highly well mobilised at larger crack widths, and the post-cracking strength of RWSW mixes was significantly higher. Considering both mechanical properties of the beams and fresh properties such as the workability, 2% of RWSWs is recommended to be utilised in the reinforced concrete beams. On the other hand, the results were compared with the predictions of the methods given in the literature and standards. Moreover, an equation was derived to better predict the capacity of the hybrid beams using RWSWs.

Tyre characteristics can strongly affect bicycle dynamics. In light of this, proper test-rigs are required to accurately measure tyre parameters. The paper presents a review of the methods and devices developed for the experimental characterisation of bicycle tyres in the lateral direction. The main aspects of the known test devices are described, highlighting the respective features. The technology of test-rigs for bicycle tyre parameter measurement seems to be just beginning. [ABSTRACT FROM AUTHOR]

Abstract Background Fatal blast injuries are generally reported as a consequence of explosions, mainly in terrorist events, work-related detonations, or domestic settings. Although quite rare, blast injuries of high kinetic energy can be seen in tyre blowouts and are very dangerous and potentially lethal because of their unpredictability. This phenomenon is rarely reported in the existing forensic literature. The aim of this study was to report two cases of fatal truck tyre bursts and to discuss the mechanisms leading to the burst and the pattern of injuries. Case presentations Case 1 was of a 58-year-old truck driver man who was standing nearby a detached tyre that was being inflated in a repair shop when the burst occurred. The tyre struck him in the face and threw him. The medicolegal autopsy showed a right periorbital haematoma, a large wound of the left parietal scalp, a diffuse subarachnoid haemorrhage, an atlanto-occipital dislocation, a fracture of the hyoid bone, multiple rib fractures, and lacerations of the ascending aorta and the pulmonary arteries. Case 2 involved a young man of 24-year-old, a worker in a tyre repair shop, who was inflating a truck’s tyre when it burst violently. The injuries sustained included bleeding from the right ear, fractures of the facial bones, a left hemispheric subdural haematoma associated with the fracture of the skull base, a rib fracture, and diffuse areas of contusions to the lungs. Toxicological analyses were negative in both cases. Conclusion Fatalities related to tyre blowout accidents are uncommon. The mechanisms leading to a blowout can be mechanical or chemical in origin, and the main danger of a burst often occurs when air enters the tyre during inflation. Internal damage caused by the pressure waves of the blast often exceeds what would be expected based on external signs alone.

Standard effectual directive on tyre safety management operations on its own is nothing without appropriate compliance and application. Deliberate oversight and neglect of safety precautionary measures may result in an accident and eventually be classified as an unforeseen event. This study on safety knowledge and its implication for on-road vehicle tyre safety compliance was conducted among one hundred and thirteen private vehicle owners in Abeokuta, Nigeria. Data collection for this study was done using subjective and physical measurement procedures. The analysis of data obtained showed that sixty-eight participants (60.2%) of the participants had a fair knowledge of road vehicle tyre safety, followed by those that had good knowledge 39 (34.5%). No participant had poor or excellent knowledge. Overall operational tyre safety and compliance with the specifics for tyre standard condition showed that 1 (0.9%) of the assessed vehicles were of very high safe and appropriate compliance status. Forty-three (38.1%) of the assessed vehicles owned and used by the participants were of very low operational tyre safety and practices. This was followed by average safe and appropriate practice 39 (34.5%). Pearson's chi-square test analysis was used to check if there is an association between tyre safety knowledge and safe and appropriate compliance status variables gave χ2 = 1.135 and p = 0.769. This implies that there is no statistically significant association between the two variables.

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Several approaches have been developed over the years for the modelling of the tyre behaviour in vehicle-dynamic applications. The so-called 'rigid-ring' models are among the classics for the modelling of the belt dynamics. Although there are several works dealing with the vibrating properties of tyres, the problem of the identification of the related rigid-ring model parameters has not been described other than qualitatively or partially. The aim of this work is thus to fill this gap and to devise a procedure for the experimental characterisation of such parameters, namely the frequency and damping of the in-plane and out-of-plane belt vibration modes as well as the associated masses and inertias. An experimental modal analysis (EMA) approach is employed, which involves an instrumented hammer combined with three-axial accelerometers roving on 16 stations equally spaced along the tyre circumference. The method is numerically demonstrated on the finite-element models of a motorcycle tyre and a car tyre. The approach is also experimentally validated on a real tyre. The rigid-ring vibration modes of the motorcycle tyre are in the range 70–220 Hz, while those of the car tyre are in the range 51–85 Hz. The ratios of the mass/inertia of the rigid ring to the mass/inertia of the tyre are in the range 40–87% and 68–74% for the motorcycle and car respectively. [ABSTRACT FROM AUTHOR]

Tyre wear particle emissions have gained significant attention due to their harmful effects on the environment and human health. However, studies on tyre wear particles generated under chassis dynamometer conditions are still scarce. This study measures the instantaneous number concentrations and elemental species of tyre wear particles in different light-duty vehicle test cycles. The results show that the particle number (PN) concentrations of the US06 test cycle are much higher than those of the WLTC test cycle due to the larger and more frequent accelerations and decelerations in the former. High PN concentrations are observed during high driving speeds with rapid accelerations, while PN concentrations are much lower during low driving speed with rapid acceleration. Furthermore, tyre tread temperature is found to be related to the formation of tyre wear particles. The PN concentration in the second and third US06 test cycles are similar, indicating that once the tyre temperature exceeds the critical value, the tyres become heated to a steady state, and the PN concentrations will not be affected by the average temperature of the tyre. A low initial tyre temperature can produce high PN concentrations during the cold start phase of test cycles and prolong the time required for tyres to warm up. In addition, the particles contained a high mass fraction of Zn, which can serve as a tracer of tyre wear particles in non-exhaust particle tests of vehicles. [ABSTRACT FROM AUTHOR]

Vehicle dynamics can be deeply affected by various tyre operating conditions, including thermodynamic and wear effects. Indeed, tyre temperature plays a fundamental role in high performance applications due to the dependencies of the cornering stiffness and potential grip in such conditions. This work is focused on the evaluation of a potentially improved control strategy’s performance when the control model is fed by instantaneously varying tyre parameters, taking into account the continuously evolving external surface temperature and the vehicle boundary conditions. To this end, a simplified tyre thermal model has been integrated into a model predictive control strategy in order to exploit the thermal dynamics’ dependents within a proposed advanced ABS control system. We evaluate its performance in terms of the resulting braking distance. In particular, a non-linear model predictive control (NMPC) based ABS controller with tyre thermal knowledge has been integrated. The chosen topic can possibly lay a foundation for future research into autonomous control where the detailing of decision-making of the controllers will reach the level of multi-physical phenomena concerning the tyre–road interaction.

The Franco-Lebanese mission in Tyre identified a stone dump comprising more than a thousand fragments of architectural members and liturgical furnishings, located in an ancient cistern. These fragments, mainly of marble, but also of limestone, basalt and marine sandstone, had been collected during excavation works carried out on the site in the 1960s and 1970s. After their discovery, all the blocks were removed from the cistern, inventoried, documented and studied in order to identify their various functions and origins. A large part of these fragments seem to have belonged to various Byzantine religious monuments. The article presents the main types to which these fragments have been assigned, following a comparative approach. [ABSTRACT FROM AUTHOR]

The provincial imperial cult represents one of the most relevant expressions of multiform relationship between provincial communities and Roman authorities especially in the East. During the Roman Principate in Syria, we can enumerate seven administrative districts (eparchies) which occur in connection with this political and religious phenomenon. The complicated question of how the province-wide worship of the Imperial family was organised in Roman Levant must be analysed in different terms. Important aspects are the Roman territorial framework of administration, the creation of autonomous city-leagues (koiná) and their cultic functions, the rules of membership within these federal organizations and their self-representation in coinages and inscriptions. On the level of political and financial management, we are dealing with federal officials and the festivities organized by them. Our paper aims to give a detailed overview of the Syrian imperial cult related not only to one specific site, but in the context of a large and culturally complex area. [ABSTRACT FROM AUTHOR]

Background: Fatal blast injuries are generally reported as a consequence of explosions, mainly in terrorist events, work-related detonations, or domestic settings. Although quite rare, blast injuries of high kinetic energy can be seen in tyre blowouts and are very dangerous and potentially lethal because of their unpredictability. This phenomenon is rarely reported in the existing forensic literature. The aim of this study was to report two cases of fatal truck tyre bursts and to discuss the mechanisms leading to the burst and the pattern of injuries. Case presentations: Case 1 was of a 58-year-old truck driver man who was standing nearby a detached tyre that was being inflated in a repair shop when the burst occurred. The tyre struck him in the face and threw him. The medicolegal autopsy showed a right periorbital haematoma, a large wound of the left parietal scalp, a diffuse subarachnoid haemorrhage, an atlanto-occipital dislocation, a fracture of the hyoid bone, multiple rib fractures, and lacerations of the ascending aorta and the pulmonary arteries. Case 2 involved a young man of 24-year-old, a worker in a tyre repair shop, who was inflating a truck's tyre when it burst violently. The injuries sustained included bleeding from the right ear, fractures of the facial bones, a left hemispheric subdural haematoma associated with the fracture of the skull base, a rib fracture, and diffuse areas of contusions to the lungs. Toxicological analyses were negative in both cases. Conclusion: Fatalities related to tyre blowout accidents are uncommon. The mechanisms leading to a blowout can be mechanical or chemical in origin, and the main danger of a burst often occurs when air enters the tyre during inflation. Internal damage caused by the pressure waves of the blast often exceeds what would be expected based on external signs alone. [ABSTRACT FROM AUTHOR]

Intentionally broken "picture" lamps, or Bildlampen, are relatively common at archaeological sites throughout the Roman world. Such lamps typically exhibit a missing central discus. The discus itself - called a lamp "medallion" - often survives, too, and represents further evidence for deliberate lamp breakage. This article explores picture lamps with missing discuses and lamp medallions as a distinct and identifiable artifact group. It also surveys the possible reasons behind their intentional breaking. The work additionally identifies selected findspots where the lighting vessels were broken in rituals, with a special focus on the Shrine of Apollo at Tyre, and examines whether lamp breakage reflects individual choice or collective behavior. In an effort to understand how Roman picture lamps were deliberately broken and the lamp medallions generated for rituals, breakage experiments - drop, impact, puncture, and hammerstone - were conducted on accurate museum-made replicas of Roman picture lamps. [ABSTRACT FROM AUTHOR]

This study reexamines a lynchpin of Neo-Babylonian Levantine Phoenician historiography: Nebuchadnezzar II's purported thirteen-year siege of Tyre in the early sixth century bce. This detail about the length of the siege can be found only in Josephus' (first century ce) writings, but this study's new assessment of the (sixth-fifteenth century ce) manuscript evidence shows that the more commonly transmitted length of the siege was "three years and ten months." Other manuscript variations further illustrate that there was little continuous cultural memory of the length of the event. When coupled with (a) other chronological problems in Josephus' works, (b) a review of the complex Biblical, Mesopotamian, and Classical relevant literary sources, and (c) the lack of current evidence for any destruction levels or siegeworks at the site of Tyre, the case for insisting other sources be synchronized with this thirteen-year framework weakens. Shorter sieges or raids, blockades of the island or inland ports, and periodic Babylonian military presence to extract personnel and resources are all likely scenarios for Tyre and other Levantine sites during Nebuchadnezzar's 43-year reign. Discarding a single "thirteen-year siege" as a reliable historical detail allows scholars of the Neo-Babylonian period in the central coastal Levant to shift their attention to more interesting questions, including exploring the causes and impacts of the evident changes in Tyre's seaward and inland trading patterns in the sixth-fifth centuries. [ABSTRACT FROM AUTHOR]

The article presents the ongoing research, which aims to select suitable electrodes and mixtures of conductive inks, which will be used as a converter between the pressure and electrical quantities in the design of planar pressure transducers. In the described research, we continue our previous work and the work of other authors who have previously dealt with the properties of conductive inks and electrodes. Due to the only partial results in the given field, we decided to perform an extensive and original measurement of a total of 172 combinations of different electrode sizes, various conductive ink mixtures and ink layer thicknesses. Thanks to this, it will be possible, in the future, to select a suitable combination of electrodes and inks when designing pressure sensors for industrial and agricultural applications without the need to perform time-consuming preparatory measurements. The aim of the measurements is also to determine the usable working range of the pressures and the corresponding sensitivity for certain combinations of electrodes and inks, and to also exclude those variants which are unsuitable for the given purposes. This paper presents the introductory part of the measurements, which aims to verify the methodology of the measurements on a test plate at robotised workspace that is connected to a PC in real time via the program LabView. The described introductory measurements proved our methodology to be suitable to the given purpose; however, there minor problems emerged with the actual working pressure range of the transducer and the consequential necessary adjustments of the control program.

The Hellenistic silver coins of Tyre were widely used and accepted in the Southern Levant. They depicted the head of the youthful and beefy Heracles-Melqart on the obverse. In this paper, the image of Heracles is discussed and contextualized within the religious life of Tyre. It is argued that the image was influenced by Heracles’ depictions related to Alexander the Great and that it also recurred on ideas of Melqart being a young god. The coin image thus combined different aspects in its visual language and evoked different ideas for the viewers, contributing to the popularity of the image.

The article presents the ongoing research, which aims to select suitable electrodes and mixtures of conductive inks, which will be used as a converter between the pressure and electrical quantities in the design of planar pressure transducers. In the described research, we continue our previous work and the work of other authors who have previously dealt with the properties of conductive inks and electrodes. Due to the only partial results in the given field, we decided to perform an extensive and original measurement of a total of 172 combinations of different electrode sizes, various conductive ink mixtures and ink layer thicknesses. Thanks to this, it will be possible, in the future, to select a suitable combination of electrodes and inks when designing pressure sensors for industrial and agricultural applications without the need to perform time-consuming preparatory measurements. The aim of the measurements is also to determine the usable working range of the pressures and the corresponding sensitivity for certain combinations of electrodes and inks, and to also exclude those variants which are unsuitable for the given purposes. This paper presents the introductory part of the measurements, which aims to verify the methodology of the measurements on a test plate at robotised workspace that is connected to a PC in real time via the program LabView. The described introductory measurements proved our methodology to be suitable to the given purpose; however, there minor problems emerged with the actual working pressure range of the transducer and the consequential necessary adjustments of the control program. [ABSTRACT FROM AUTHOR]

At a time of waning military prestige in the fourth century, Athens attached great importance to its choral and dramatic heritage as a source of civic display and pride. In spectacular festivities staged at Tyre in 331 BCE and detailed by Plutarch (Alex. 29.1-5; de fort. Alex. 334 d-e), Alexander the Great drew upon elements of the Athenian contests in his own celebrations. I suggest here that he did so in order to articulate his own power with a Greek—and more particularly an Athenian—audience in mind, and that his gesture was shaped by apprehensions of instability in the Peloponnese. [ABSTRACT FROM AUTHOR]

Vehicle dynamics can be deeply affected by various tyre operating conditions, including thermodynamic and wear effects. Indeed, tyre temperature plays a fundamental role in high performance applications due to the dependencies of the cornering stiffness and potential grip in such conditions. This work is focused on the evaluation of a potentially improved control strategy's performance when the control model is fed by instantaneously varying tyre parameters, taking into account the continuously evolving external surface temperature and the vehicle boundary conditions. To this end, a simplified tyre thermal model has been integrated into a model predictive control strategy in order to exploit the thermal dynamics' dependents within a proposed advanced ABS control system. We evaluate its performance in terms of the resulting braking distance. In particular, a non-linear model predictive control (NMPC) based ABS controller with tyre thermal knowledge has been integrated. The chosen topic can possibly lay a foundation for future research into autonomous control where the detailing of decision-making of the controllers will reach the level of multi-physical phenomena concerning the tyre–road interaction. [ABSTRACT FROM AUTHOR]

Modern vehicles are equipped with many systems that monitor the security of driving. An example is the tyre pressure monitoring system that shows a fault if the tyre pressure is lowered. Low tyre pressure or no pressure at all (0 kPa) means that continuing driving may lead to a dangerous situation. Prolonged driving of the vehicle at 0 kPa in the tyre ends with tyre burst, rim damage, or even loss of stability. Therefore, on the automotive market, manufacturers offer Run Flat tyres adapted to emergency driving with a pressure of 0 kPa. This article presents the results of an experimental research in the field of vehicle dynamics, continuing driving a vehicle with a loss of tyre pressure. These tests were carried out not only to confirm the data provided by tyre manufacturers and to verify the vehicle's driveability but also to analyse the effectiveness of stopping vehicles equipped with this type of tyres using, for example, police studs, especially when vehicles are used for crimes or terrorist activities.

The largest consumer of natural and synthetic rubbers around the world is the tyre manufacturing industry. The recycling and disposal of end-of-life tyres (ELTs) are major challenges in waste management due to its complex structure and composition. The crosslinked 3D structure of rubber resulting from vulcanisation along with stabilisers and additives incorporated during manufacture also make tyres resistant to natural degradation. Because of this, a large proportion of ELTs end up in landfill where those become serious threats to the environment. Fortunately, useful materials can be recovered from ELTs via various recycling routes. The recovery of ground tyre rubber (GTR) using the ambient, cryogenic, and other processes was critically review in this paper. It is found that, recycled rubber aggregates can be used directly as fillers and modifiers in the production rubberised asphalt and concrete. Additionally, GTR can be further processed through mechanisms such as chemical, mechanochemical, microwave, ultrasound, and microbial devulcanization to improve its usability in the above-mentioned processes. The recovery of energy, oils, solids, and gaseous products from the combustion or pyrolysis of ELTs is another beneficial recycling approach. It is suggested that this approach does not take full advantage of the useful properties of vulcanised rubber. Furthermore, the feasibility of such methods depends on the market available and acceptance of tyre derived diesels as alternate fuels.

The aim of the research described in this paper is analysis of the deformation of the aircraft tyre subjected to static load. Based on the results of experimental tests with a different value of inflation pressure, favorable pressure conditions for use in the tyre of an ultralight aircraft were determined. The deflection characteristics of the tyre depending on the nominal pressure was determined using the digital image correlation technique. In the range of loads not leading to excessive tyre deflection, quite linear relation between vertical deflection and vertical force is observed. The safe minimum pressure in tyre loaded with a force of 12 kN is 2.5 bar. The experimental results will be used to select a shock absorber for a 600 kg ultralight, light sport aircraft commercialised by the company Ekolot (Krosno, Poland).

Tyre materials are complex products, as they are prepared using a number of raw materials, each of them with its specific chemical composition and functionality in the final product. It is, therefore, of crucial importance to avoid mislabeling errors and even to verify the compliance of raw materials entering the factory. The present study proposes a strategy that makes use of near infrared (NIR) spectroscopy combined with chemometrics for raw material identification (RMID) and compliance verification of the most common raw materials used in the tyre industry. In particular, the chemometric model developed consists of a global hierarchical classification model, which combines nested PLS-DA nodes for RMID and SIMCA nodes for compliance verification, in a two-step approach. The global model showed satisfactory results, as a 100 % of total correct predictions and a sensitivity higher than 90 % in the test set were obtained for most of the classes of interest. The strategy obtained has the final goal of being directly applied on the raw materials at their receiving stage in factory, with the double advantage of minimizing the risk of mislabeling and, at the same time, decreasing the number of suspicious samples that need to be analyzed in the laboratory, by means of traditional methods, for verifying their compliance. [Display omitted] • NIR spectra are used for the development of a classification tree for tyre materials. • The model is built for 36 of the most common raw materials used in the tyre industry. • A global hierarchical model combines nested PLS-DA and SIMCA in a two-step approach. • PLS-DA is applied for raw material identification. • SIMCA performs compliance verification, at the same time. [ABSTRACT FROM AUTHOR]

Tyre wear particle emissions have gained significant attention due to their harmful effects on the environment and human health. However, studies on tyre wear particles generated under chassis dynamometer conditions are still scarce. This study measures the instantaneous number concentrations and elemental species of tyre wear particles in different light-duty vehicle test cycles. The results show that the particle number (PN) concentrations of the US06 test cycle are much higher than those of the WLTC test cycle due to the larger and more frequent accelerations and decelerations in the former. High PN concentrations are observed during high driving speeds with rapid accelerations, while PN concentrations are much lower during low driving speed with rapid acceleration. Furthermore, tyre tread temperature is found to be related to the formation of tyre wear particles. The PN concentration in the second and third US06 test cycles are similar, indicating that once the tyre temperature exceeds the critical value, the tyres become heated to a steady state, and the PN concentrations will not be affected by the average temperature of the tyre. A low initial tyre temperature can produce high PN concentrations during the cold start phase of test cycles and prolong the time required for tyres to warm up. In addition, the particles contained a high mass fraction of Zn, which can serve as a tracer of tyre wear particles in non-exhaust particle tests of vehicles.

Appropriate tyre safety practices are among the fundamental approaches that minimize technical failure risk factors in automobiles. This study developed a multiple linear regression (MLR) model that depicts the effect of tyre safety awareness and consequent approach predictor variables on technical failure risk response variable in automobile crashes. The data for this study was obtained from a total number of one hundred and thirteen (113) vehicle owners in Abeokuta metropolis of Ogun state Nigeria using a mixed-method quantitative research approach. Data analysis showed that the level of awareness and the consequent approaches regarding tyre failure risk factors in automobile crashes significantly affect automobile technical failure risk crashes. The technical failure risk response variable of the MLR model developed, and the survey data recorded a percentage variation of 3.54% with a strong positive correlation between the two datasets significant at p < 0.01 for a value of r = 0.962. This, therefore, demands adequate public sensitization measures on tyre safety and its implication in failure risk crash factors as well as stringent enforcement by relevant agencies as this study has revealed that tyre safety awareness and handling approaches have a significant effect on technical failure risk factors in automobiles. [ABSTRACT FROM AUTHOR]

The aim of the research described in this paper is analysis of the deformation of the aircraft tyre subjected to static load. Based on the results of experimental tests with a different value of inflation pressure, favorable pressure conditions for use in the tyre of an ultralight aircraft were determined. The deflection characteristics of the tyre depending on the nominal pressure was determined using the digital image correlation technique. In the range of loads not leading to excessive tyre deflection, quite linear relation between vertical deflection and vertical force is observed. The safe minimum pressure in tyre loaded with a force of 12 kN is 2.5 bar. The experimental results will be used to select a shock absorber for a 600 kg ultralight, light sport aircraft commercialised by the company Ekolot (Krosno, Poland). [ABSTRACT FROM AUTHOR]