Emission Components Research Articles

Quantum-Dot Light-Emitting Diodes Exhibiting Narrow-Spectrum Green Electroluminescence by Using Ag–In–Ga–S/GaSx Quantum Dots

Quantum dots (QDs), which have high color purity, are expected to be applied as emitting materials to wide-color-gamut displays. To enable their use as an alternative to Cd-based QDs, it is necessary to improve the properties of QDs composed of low-toxicity materials. Although multielement QDs such as Ag-In-Ga-S are prone to spectrally broad emission from defect sites, a core/shell structure covered with a GaSx shell is expected to enable sharp emission from band-edge transitions. Here, QD light-emitting diodes (QD-LEDs) embedded with Ag-In-Ga-S/GaSx core/shell QDs (AIGS QDs) were fabricated, and their electroluminescence (EL) was observed. The EL spectra from the AIGS QD-LEDs were found to contain a large defect-related emission component not observed in the photoluminescence (PL) spectra of the AIGS QD films. This defect-related emission was caused by electrons injected into defect sites in the QDs. Therefore, the AIGS QDs and the electron injection layer (EIL) of ZnMgO were treated with Ga compounds such as gallium chloride (GaCl3) and gallium tris(N,N'-diethyldithiocarbamate) (Ga(DDTC)3) to improve the luminescence properties of the QD-LEDs. The added Ga compounds effectively compensated for defect sites on the surface of the QDs and suppressed direct electron injection from the EIL into defect sites. As a result, the defect-related emission components in the EL were successfully suppressed, and the EL exhibited a color purity comparable to the PL of the AIGS QD films. The QD-LEDs exhibited EL spectra with a full width at half-maximum of 33 nm, which is extremely sharp for a low-toxicity QD, and the chromaticity coordinates (0.260, 0.695) for green EL were achieved.

Three-stage Collapse of the Long Gamma-Ray Burst from GRB 160625B Prompt Multiwavelength Observations

This article presents the early results of synchronous multiwavelength observations of one of the brightest gamma-ray bursts (GRBs) GRB 160625B with the detailed continuous fast optical photometry of its optical counterpart obtained by MASTER and with hard X-ray and gamma-ray emission, obtained by the Lomonosov and Konus-Wind spacecraft. The detailed photometry led us to detect the quasi-periodical emission components in the intrinsic optical emission. As a result of our analysis of synchronous multiwavelength observations, we propose a three-stage collapse scenario for this long and bright GRB. We suggest that quasiperiodic fluctuations may be associated with forced precession of a self-gravitating rapidly rotating superdense body (spinar), whose evolution is determined by a powerful magnetic field. The spinar’s mass allows it to collapse into a black hole at the end of evolution.

Characterizing the patchy appearance of the circumgalactic medium and the influence of foreground absorption

Context. Recent studies have demonstrated that the emission from the circumgalactic medium displays a relatively high degree of patchiness on angular scales of ∼10°. Aims. Taking advantage of the Spectrum Roentgen Gamma eROSITA Final Equatorial Depth Survey, we aim to constrain any variation in the X-ray surface brightness on scales ranging from sub-degrees to a hundred square degrees. Result. The surface brightness in the soft X-ray band (0.3–0.45 keV) shows modulations of about 60% on scales of several degrees. The amplitude of such variations decreases at higher energies. The observed patchiness is stable over a period of two years, therefore excluding the possiblity that it could have been induced by solar wind charge exchange. We also observe no correlation between such an excess and the density of galaxies in the Local Universe, suggesting no strong contribution from the hot baryons in the filaments of the cosmic web. Instead, the soft X-ray emission is anti-correlated with the column density of absorbing material. Indeed, we can reproduce the spectrum of the bright and dark regions by simply varying the column density of the matter absorbing the emission components located beyond the Local Hot Bubble, while no modulation of the intrinsic emission is required. At high Galactic latitudes, the eROSITA all-sky map shows patchiness of the soft X-ray diffuse emission similar to the one observed in the eFEDS field; it is therefore likely that the same “absorption-modulation”is present over the entire sky. Conclusions. The observed patchiness of soft X-ray diffuse emission within the eFEDS field is primarily a consequence of absorption. Our spectral decomposition of the soft X-ray background appears accurate, predicting that (apart from the Local Hot Bubble) all other spectral components are modulated by clouds beyond ∼200 pc from the Sun. These results highlight the importance of an accurate treatment of the absorption effects in determining the patchiness of the circumgalactic medium.

A Cosmological Fireball with 16% Gamma-Ray Radiative Efficiency

Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. How efficiently the jet converts its energy to radiation is a long-standing problem, which is poorly constrained. The standard model invokes a relativistic fireball with a bright photosphere emission component. A definitive diagnosis of GRB radiation components and the measurement of GRB radiative efficiency require prompt emission and afterglow data, with high resolution and wide band coverage in time and energy. Here, we present a comprehensive temporal and spectral analysis of the TeV-emitting bright GRB 190114C. Its fluence is one of the highest for all the GRBs that have been detected so far, which allows us to perform a high-resolution study of the prompt emission spectral properties and their temporal evolutions, down to a timescale of about 0.1 s. We observe that each of the initial pulses has a thermal component contributing ∼20% of the total energy and that the corresponding temperature and inferred Lorentz factor of the photosphere evolve following broken power-law shapes. From the observation of the nonthermal spectra and the light curve, the onset of the afterglow corresponding to the deceleration of the fireball is considered to start at ∼6 s. By incorporating the thermal and nonthermal observations, as well as the photosphere and synchrotron radiative mechanisms, we can directly derive the fireball energy budget with little dependence on hypothetical parameters, measuring a ∼16% radiative efficiency for this GRB. With the fireball energy budget derived, the afterglow microphysics parameters can also be constrained directly from the data.

Identifying Diffuse Spatial Structures in High-energy Photon Lists

Data from high-energy observations are usually obtained as lists of photon events. A common analysis task for such data is to identify whether diffuse emission exists, and to estimate its surface brightness, even in the presence of point sources that may be superposed. We have developed a novel nonparametric event list segmentation algorithm to divide up the field of view into distinct emission components. We use photon location data directly, without binning them into an image. We first construct a graph from the Voronoi tessellation of the observed photon locations and then grow segments using a new adaptation of seeded region growing that we call Seeded Region Growing on Graph, after which the overall method is named SRGonG. Starting with a set of seed locations, this results in an oversegmented data set, which SRGonG then coalesces using a greedy algorithm where adjacent segments are merged to minimize a model comparison statistic; we use the Bayesian Information Criterion. Using SRGonG we are able to identify point-like and diffuse extended sources in the data with equal facility. We validate SRGonG using simulations, demonstrating that it is capable of discerning irregularly shaped low-surface-brightness emission structures as well as point-like sources with strengths comparable to that seen in typical X-ray data. We demonstrate SRGonG’s use on the Chandra data of the Antennae galaxies and show that it segments the complex structures appropriately.

The Impact of Metal-Based Nanoparticles Produced by Different Types of Underwater Welding on Marine Microalgae.

Underwater wet welding is commonly used in joining pipelines and in underwater construction. Harmful and hazardous compounds are added to many flux-cored wires for underwater welding and cutting, and can have a negative impact on marine life. The specific objective of this study was to evaluate the aquatic toxicity of two suspension samples obtained using welding electrode and flux-cored wire in marine microalgae Attheya ussuriensis and Porphyridium purpureum. Growth rate inhibition, cell size, and biochemical changes in microalgae were evaluated by flow cytometry. The results of the bioassay demonstrated that the suspension obtained after welding with electrode had an acute toxic impact on diatomic microalgae A. ussuriensis, and both tested suspensions revealed chronic toxicity in this microalga with a 40% growth rate inhibition after exposure to 40-50% of prepared suspensions for 7 days. Red algae P. purpureum revealed tolerance to both suspensions caused by exopolysaccharide covering, which prevents the toxic impact of metal cations such as Al, Ti, Mn, Fe, and Zn, which are considered the main toxic components of underwater welding emissions.

Combined analysis of acoustic emission and vibration signals in monitoring tool wear, surface quality and chip formation when turning SCM440 steel using MQL

With modern production, Minimum Quantity Lubricant (MQL) technology has emerged as an alternative to conventional liquid cooling. The MQLs is an environmentally friendly lubricant method with low cost while meeting the requirements of machining conditions. In this study, the experimental and analytical results show that the obtained acoustic emission (AE) and vibration signal components can effectively monitor various circumstances in the SCM440 steel turning process with MQL, such as surface quality and chip formation as cutting tool conditions. The AE signals showed a significant response to the tool wear processes. In contrast, the vibration signal showed an excellent ability to reflect the surface roughness during turning with MQL. The chip formation process through the cutting mode parameters (cutting speed, feed and depth of cut) was detected through analysis amplitude of the vibration components Ax, Ay and Az and the AE signal. Finally, Gaussian process regression and adaptive neuro-fuzzy inference systems (GPR-ANFIS) algorithms were combined to predict the surface quality and tool wear parameters of the MQL turning process. Tool condition monitoring devices assist the operator in monitoring tool wear and surface quality limits, stopping the machine in case of imminent tool breakage or lower surface quality. With the unique combination of AE and vibration analysis model and the training and testing samples established by the experimental data, the corresponding average prediction accuracy is 97.57 %. The highest prediction error is not more than 3.8 %, with a confidence percentage of 98 %. The proposed model can be used in industry to predict surface roughness and wear of the tools directly during turning

Intrinsic fluorescent phase change materials-based polymer networks: Tuning fluorescence emission intensity and phase change properties for thermal energy storage

Polymeric intrinsic fluorescent phase change material (FPCMs) networks will have a great advantage over conventional PCMs for the multi-functionality. In this research, intrinsic FPCMs networks combining fluorescence emission and phase change properties are synthesized in a facile and robust approach by integrating fluorescein and polyethylene glycol at the molecular level. In FPCMs, fluorescein-derived structures serve as the fluorescent emission components and PEG-derived segments work as the latent heat-based thermal energy storage units and the fluorescence intensity regulators. The fluorescence emission intensity of FPCMs obviously decreases by an order of magnitude during a phase change process from 40 °C to 60 °C, which is denoted as phase change-induced fluorescence emission effect in this report. FPCMs possess the high latent heat up to 116.1 J/g, the shape stability even at 150 °C, the high thermal reliability and stability. FPCMs can be prepared by both catalyst-free and catalyst-accelerated process to meet different production requirements. The combination of phase change and fluorescence emission properties in the crosslinking network structure will endow FPCMs with potential application abilities in smart energy-storage fluorescent devices etc.

The application of a multi-channel sensor network to decompose the local and background sources and quantify their contributions

The construction site is one of the typical sources of anthropogenic dust and profoundly responsible for generating a high concentration of particles in the surrounding air. To assess the detailed attribution of construction dust to the environment, it is necessary to distinguish the emissions and underlying pollution levels from the measurements. This study demonstrated the feasibility of using multi-channel particulate matter (PM) sensors to measure the concentration of PM in different sizes at a near-source site in real time. A total of five sensors were placed at different locations throughout the construction site for the intensive air quality monitoring from April 12 to April 26, 2021, during the extensive construction activities. Meanwhile, iterative discrete wavelet transform (IDWT) was used to decompose pollutant time series into different components based on low/high frequency filtering. Overall, baseline component was closely related to regional background concentration, showing mild diurnal variation, while the emission component showed a significant increase during working hours from 8:00 to 18:00, especially for coarse particles. The baseline and long-period emission components were mainly from the rapid accumulation of fine particles, but when the particle size was larger than 2.5 μm, the short-period emissions still increased rapidly. The correlation matrix clustering supports the conclusion that the different components were mainly determined by three potential sources. Our results may help to understand the profiles of different-sized PM in construction sites and identify potential source attributions.

Control of Lean Blowout in a Swirl-Stabilized Dump Combustor at Different Levels of Premixing Based on Flame Colour

ABSTRACT Presently, the use of lean combustion has been growing in industrial furnaces, aero-engine, and rocket engine applications due to their low N O X emission and minimum maintenance requirements. On the other hand, due to the excessively low combustion reaction rate, the operation at a low fuel–air ratio leads to the sudden shutdown of the engines, which is termed lean blowout (LBO). Therefore, to operate land-based and aircraft engines at an extremely lean fuel–air mixture, control of LBO has become indispensable. In the present work, we develop several feedback in-loop control strategies using a pixel-averaged intensity ratio between the red and blue components of the flame emission. During a lean operation, based on the quantification of the proximity of the combustion dynamics to the LBO limits using this color ratio, the control strategies make the solenoid valves active to inject a secondary pilot fuel and energize the flame base. We notice that a proper choice of the color ratio as a threshold enhances the stability of both premixed and partially premixed combustion using a low pilot fuel. Besides, we test N O X emission for unpiloted and piloted operations and find that the emission is only marginally affected during a pilot injection.

C,N,C Pincer Complexes of Gold(III): Organometallic Chemistry, Liquid Crystals, Photophysics and OLEDs

Owing to their ability to promote efficient spin-orbit coupling, complexes of iridium(III), platinum(II) and, latterly, gold(III), have attracted attention as the emissive components in OLED displays. Making such complexes liquid crystalline offers some potential advantages and, while liquid-crystalline complexes of iridium(III) and platinum(II) are quite well studied, those of gold(III) are much newer. The preparation and properties of come of these gold(III) complexes are considered.

Dual-carbon development opportunities and challenges in the property industry: A key role in China’s low-carbon transition

This paper aims to explore the key role of the property industry in China’s low-carbon transition, and analyze the opportunities and challenges of its dual-carbon development. Firstly, the urgency of global greenhouse gas emissions and the importance of property industry in carbon emissions are introduced, then the definition and significance of carbon neutral and dual carbon goals are analyzed, and the international and domestic dual carbon policies and commitments are reviewed. Then it lists the main sources and components of carbon emissions of the property industry in detail, and evaluates the carbon footprint of the property industry. Next, it discusses the opportunities of new technology and innovation, renewable energy, carbon finance and carbon market for the dual-carbon development of the property industry. At the same time, it also discusses the challenges of technical constraints and cost pressures, the uncertainty and landing problems of policies and regulations, and the difficulty and constraints of landlord and tenant participation. Finally, the paper puts forward policy suggestions to promote the dual-carbon development of the property industry, including setting clear carbon reduction targets and schedules, providing policy support and financial incentives, and establishing industry cooperation and sharing mechanism.

Cвітові тенденції терапії пацієнтів з бронхіальною астмою — персоніфікований підхід до лікування

Abstract. Bronchial asthma (BA) refers to those diseases that significantly disrupt the adaptation of patients in society and the family, lead to temporary and permanent loss of working capacity, significant economic costs in many countries of the world. The goals of treating people with ВA in recent years have traditionally remained unchanged and consist in achieving effective symptom control and maintaining a normal level of activity. Despite the availability and accessibility of modern asthma control therapy, lack of control or partial control of ВА is, unfortunately, a common phenomenon among patients with BA. The m ain reason for this phenomenon is the low adherence of people with BA to anti-inflammatory therapy of the disease. Patients with BA often rely on drugs to relieve symptoms, but low adherence to basic therapy and the lack of timely increase in its volume at the initial signs of loss of asthma control sometimes lead to irreversible consequences. The m odern approach to the treatment of BA in adults and adolescents over 12 years of age according to the recommendations of GINA 2022 and NAEPP 2020 is to use a fixed combination of an inhaled corticosteroid with formoterol both for basic therapy and as needed, since it has a rapid and simultaneous anti-inflammatory effect and is effective by alleviating symptoms and reducing the risk of exacerbation. Global climate change is one of the most acute environmental problems facing humanity. The m ain cause of climate change is greenhouse gases produced by human activity. The use of large numbers of short-acting β2-agonist inhalers for the relief of asthma symptoms is one important component of total carbon emissions to the atmosphere, which can be reduced by patients using a fixed combination of inhaled corticosteroid and formoterol as a means of basic and symptomatic therapy.

Can Observations of 511 keV Line from the M31 Galaxy Shed Light on the AGN Jet Composition?

Positron annihilation line at 511 keV is a known component of the gamma-ray diffuse emission. It is believed to be produced in the Galaxy, but there could be possible extragalactic contribution as well. E.g., positrons can be produced in jets of active galactic nuclei (AGN) and after that accumulate and gradually annihilate in hot gaseous halos around galaxies. In this work we test this hypothesis in application to an individual object—the Andromeda galaxy (M31) which is close and has a supermassive black hole in its center, which powered an AGN before. We compute the growth history of the supermassive black hole in M31, relate it to the evolution of jet luminosity and estimate the positron content in its halo. We calculate the 511 keV photon flux due to positron annihilation which should be observed at Earth and find the value of around $$10^{-4}$$ photon cm $${}^{-2}$$ s $${}^{-1}$$ . It is very close to the observational limits ( $${<}10^{-4}$$ photon cm $${}^{-2}$$ s $${}^{-1}$$ ) set by the INTEGRAL/SPI in the assumption of the point source, so further observations would be able to constrain leptonic models of the jets and propagation of cosmic rays in the circumgalactic medium of large spiral galaxies.

Live to Die Another Day: The Rebrightening of AT 2018fyk as a Repeating Partial Tidal Disruption Event

Stars that interact with supermassive black holes (SMBHs) can be either completely or partially destroyed by tides. In a partial tidal disruption event (TDE), the high-density core of the star remains intact, and the low-density outer envelope of the star is stripped and feeds a luminous accretion episode. The TDE AT 2018fyk, with an inferred black hole mass of 107.7±0.4 M ⊙, experienced an extreme dimming event at X-ray (factor of >6000) and UV (factor of ∼15) wavelengths ∼500–600 days after discovery. Here we report on the reemergence of these emission components roughly 1200 days after discovery. We find that the source properties are similar to those of the predimming accretion state, suggesting that the accretion flow was rejuvenated to a similar state. We propose that a repeated partial TDE, where the partially disrupted star is on an ∼1200 day orbit about the SMBH and periodically stripped of mass during each pericenter passage, powers its unique light curve. This scenario provides a plausible explanation for AT 2018fyk’s overall properties, including the rapid dimming event and the rebrightening at late times. We also provide testable predictions for the behavior of the accretion flow in the future; if the second encounter was also a partial disruption, then we predict another strong dimming event around day 1800 (2023 August) and a subsequent rebrightening around day 2400 (2025 March). This source provides strong evidence of the partial disruption of a star by an SMBH.

The GRAVITY young stellar object survey

Context. Hot atomic hydrogen emission lines in pre-main sequence stars serve as tracers for physical processes in the innermost regions of circumstellar accretion disks, where the interaction between a star and disk is the dominant influence on the formation of infalls and outflows. In the highly magnetically active T Tauri stars, this interaction region is particularly shaped by the stellar magnetic field and the associated magnetosphere, covering the inner five stellar radii around the central star. Even for the closest T Tauri stars, a region as compact as this is only observed on the sky plane at sub-mas scales. To resolve it spatially, the capabilities of optical long baseline interferometry are required. Aims. We aim to spatially and spectrally resolve the Brγ hydrogen emission line with the methods of interferometry in order to examine the kinematics of the hydrogen gas emission region in the inner accretion disk of a sample of solar-like young stellar objects. The goal is to identify trends and categories among the sources of our sample and to discuss whether or not they can be tied to different origin mechanisms associated with Brγ emission in T Tauri stars, chiefly and most prominently magnetospheric accretion. Methods. We observed a sample of seven T Tauri stars for the first time with VLTI GRAVITY, recording spectra and spectrally dispersed interferometric quantities across the Brγ line at 2.16 µm in the near-infrared K-band. We used the visibilities and differential phases to extract the size of the Brγ emission region and the photocentre shifts on a channel-by-channel basis, probing the variation of spatial extent at different radial velocities. To assist in the interpretation, we also made use of radiative transfer models of magnetospheric accretion to establish a baseline of expected interferometric signatures if accretion is the primary driver of Brγ emission. Results. From among our sample, we find that five of the seven T Tauri stars show an emission region with a half-flux radius in the four to seven stellar radii range that is broadly expected for magnetospheric truncation. Two of the five objects also show Brγ emission primarily originating from within the co-rotation radius, which is an important criterion for magnetospheric accretion. Two objects exhibit extended emission on a scale beyond 10 R*, one of them is even beyond the K-band continuum half-flux radius of 11.3 R*. The observed photocentre shifts across the line can be either similar to what is expected for disks in rotation or show patterns of higher complexity. Conclusions. Based on the observational findings and the comparison with the radiative transfer models, we find strong evidence to suggest that for the two weakest accretors in the sample, magnetospheric accretion is the primary driver of Brγ radiation. The results for the remaining sources imply either partial or strong contributions coming from additional, spatially extended emission components in the form of outflows, such as stellar or disk winds. We expect that in actively accreting T Tauri stars, these phenomena typically occur simultaneously on different spatial scales. Through more advanced modelling, interferometry will be a key factor in disentangling their distinct contributions to the total Brγ flux arising from the innermost disk regions.

ВОЗДЕЙСТВИЕ ЭМИССИИ ЦЕЛЛЮЛОЗНО-БУМАЖНОГО ПРЕДПРИЯТИЯ НА ОКРУЖАЮЩУЮ СРЕДУ

Eco-chemical monitoring of the snow cover in the impact zone of a pulp and paper mill was carried out. Conditional impact zones of the mill were identified. The interannual variations in their area were shown. There was a more than 50% decrease in the area of impact zones after the reconstruction of the mill. It was estimated that the seasonal features of the wind regime significantly influenced the formation of a snow pollution plume. A calculation of air mass trajectories showed a probable area of displacement of emission components from the mill. A comparison of field data on the pollution dispersion obtained during the snow cover study with data on the wind direction and air mass transport confirmed the consistency of these data.

AstroSat observation of the accreting millisecond X-ray pulsar SAX J1808.4–3658 during its 2019 outburst

ABSTRACT We report on the analysis of the AstroSat data set of the accreting millisecond X-ray pulsar SAX J1808.4–3658, obtained during its 2019 outburst. We found coherent pulsations at ∼401 Hz and an orbital solution consistent with previous studies. The 3–20 keV pulse profile can be well fitted with three harmonically related sinusoidal components with background-corrected fractional amplitudes of $\sim 3.5 {{\ \rm per\ cent}}$, $\sim 1.2 {{\ \rm per\ cent}}$ and $\sim 0.37 {{\ \rm per\ cent}}$ for the fundamental, second and third harmonics, respectively. Our energy-resolved pulse profile evolution study indicates a strong energy dependence. We also observed a soft lag in the fundamental and hard lags during its harmonic. The broad-band spectrum of SAX J1808.4–3658 can be described well using a combination of the thermal emission component with kT ∼ 1 keV, a thermal Comptonization (Γ ∼ 1.67) from the hot corona and broad emission lines due to Fe.

Evidence of underdeveloped torus and broad-line region of weak emission line quasars based on their spectral energy distribution

ABSTRACT To unravel the dominant cause of the weak emission line in a subset of optically selected radio-quiet ‘weak emission line quasars’ (WLQs), we have investigated the possibility of an underdeveloped broad line region (BLR). For this, we have modelled spectral energy distributions (SED) of 61 WLQs by using their optical and infrared (IR) photometric observations from Sloan Digital Sky Survey (SDSS) and WISE, respectively. SED fit consists of various emission components, including the luminosity from the dusty torus (Ltor). For comparison with the normal quasar, we have used a control sample of 55 Quasi-Stellar Objects (QSOs) for each WLQ matching in emission redshift and SDSS r-band. Based on our measurement of Ltor, we found a decrement of 42 ± 2 per cent in IR luminosity in WLQs with respect to the control sample of normal QSOs. Using Ltor/Lbol as the measure of torus covering factor (CFtor), we found a similar decrement in WLQ covering factor, with their CFtor distribution being significantly different with respect to the normal QSOs with a KS test Pnull of 4.27 × 10−14. As dusty torus and BLR covering factors are expected to be of a similar order in active galactic nucleus (AGN), our results suggest that the BLR in the WLQs is underdeveloped and could be a dominant cause of the weakness of their emission line. As a result, our analysis gives support to the models of WLQs based on the evolution scenario being in an early stage of AGNs.

Analisis Dampak Kesalahan Dalam Simulasi Manajemen Elektronik Mesin Pada Pengoperasian Kendaraan Bermotor

For internal combustion engine electrical management in order for an engine to function properly, all its electronic components must function and play their role. Failure of these electronic components may result in improper preparation of the fuel mixture. This also affects driving safety. The impact of individual errors can have a negative impact on traffic safety and can also have a negative impact on other participants. The subject of this study was to investigate the impact of failure of electronic components on selected operating characteristics. This article is to determine the failure rate of electronic mechanical components and can affect the operation of road vehicles. Eight electronic system faults are simulated with specific vehicles and use fuel assemblies in gasoline fuel. Measurements were made based on laboratory conditions that gave to change the characteristics of the vehicle handling between damage and corruption. Making the vehicle power parameters and the selected exhaust emission components are determined for the selected vehicle characteristics. The results show that the engine failure of the electronic system has a great impact on the operating characteristics, and at the same time there are situations in the normal operating state of the vehicle in which some of these defects are unknown to the vehicle operator ricefield. The results of the publication can be used in the fields of written law, production and operation of road vehicles, and mathematical modeling of gas emission production from road transportation.