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Structural Health Monitoring (SHM) of aerospace structures has received significant interest as a core component of Condition Based Maintenance (CBM). This paper examines the possibility of using an ultrasonic guided wave system for... more
In this paper, we analyze the behavior of stochastic approximation schemes with set-valued maps in the absence of a stability guarantee. We prove that after a large number of iterations if the stochastic approximation process enters the... more
The relative retardation A, the orientation of the main axis p, the polarization-dependent loss angle XI, and the reciprocal and the nonreciprocal rotation angle p of optical components can be determined, in principle, by intracavity... more
Recent studies of ceramics of formula Ba 2 LnFeNb 4 O 15 (Ln = rare earth) with the "tetragonal tungsten bronze" (TTB) structure have correlated their room temperature multiferroics properties to the occurrence of barium ferrite parasitic... more
The RadioAstron mission has obtained a series of detailed multi-frequency images of the brightest blazars of the radio sky concentrated in three key science programs. We present here results of the program on powerful jets in blazars. In... more
We present the first results on the analysis of the structures observed in the jet of the quasar 0836+710. We obtain the ridge lines of the jet at different epochs and several frequencies. We interpret the oscillatory structures obtained... more
The effect of temperature and gas composition on the corrosion rate and corrosion byproduct of copper foil was studied by exposing it to sulphur (S 2 ), S 2 + hydrochloric acid (HCl) and hydrogen sulphide. The temperature was varied from... more
Nowadays, advanced manufacturing models such as the Stream-of-Variation (SoV) model have been successfully applied to derive the complex relationships between fixturing, manufacturing and datum errors throughout a multi-stage machining... more
Optical fiber sensors are studied and fabricated for number of industrial applications. It has certain advantages such as light weight, low cost etc. Number of configurations is considered depending upon the need of applications. These... more
A 2021 második felétől kibontakozó energiaár-robbanás, amelyet a lakosságot kevésbé, inkább a közszféra fogyasztóit súlytotta, olyan költségtakarékos megoldásokat követeltek meg a piaci szereplőktől, amelyek jellemzően jelentős beruházást... more
Agriculture especially in India need to concentrate in some aspects such as how to increase the productivity and profit, how to reduce the cost and how to solve the problem comes from workers. Currently in India former used conventional... more
or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume,... more
This paper firstly expounds that the reheat-regenerative Rankine power cycle is a suitable cycle for the parabolic trough collector, a popular kind of collector in the power industry. In a thermal power cycle, the higher the temperature... more
We report the magnetoresistance studies on Dy 1-x Y x (x ≤ 0.05) alloys across the first order helimagnetic to ferromagnetic phase transition. These alloys exhibit multiple magnetic phases on varying the temperature and magnetic field.... more
In this paper we report measurements of mean and fluctuating axial velocities, measured using a laser Doppler anemometer, for a 0.125% solution of a polyacrylamide, Separan AP 273 E, in fully-developed pipe flow. Although the results... more
This study will investigate the impact of the protective device and mainly its effects on intelligibility in a noisy environment. Through a subjective test on 22 individuals, we observed an increase of about 20% of recognized words with... more
A known difficulty with using the Clauser chart method to determine the friction velocity in wall bounded flows is that it assumes, a priori, a logarithmic law for the mean velocity profile. Using both experimental and DNS data in the... more
Carbon fiber reinforced plastics (CFRP) are more and more used in aerospace applications because of their potential to considerably reduce the weight. Using CFRP, however, the problem occurs that at painted parts the paint thickness has... more
In this paper we present a new approach to decentralized supervisory control of large automata with communicating supervisors. We first generalize the recently developed top-down architecture of multilevel coordination control with a... more
In this paper, a uniform approach to maximal permissiveness in modular control of discrete-event systems is proposed. It is based on three important concepts of modular closed-loops: monotonicity, distributivity, and exchangeability.... more
In this paper, we further develop the coordination control framework for discrete-event systems with both complete and partial observation. A new weaker sufficient condition for the computation of the supremal conditionally controllable... more
Synthesis of normal or controllable and normal sublanguages of global specification languages without computation of the global modular plant is a difficult problem. In this paper, these sublanguages are computed using a coordinator. We... more
Distributed systems consist of an interconnection of two or more subsystems. Control of such systems is structured by two or more controllers, each receiving an observation stream from a local subsystem and providing an input to the local... more
A two phase Smoothed Particle Hydrodynamics method is developed to simulate the violent deformation of the free surface and the formation of the cavity induced by the two dimensional wedge entering water. The flow field of water and air... more
Solid Earth-atmosphere interactions and possibly solid Earth-seafloor interactions prior to major earthquakes are the subject of this study. Using data from Moderate Resolution Imaging Spectroradiometer (MODIS) onboard National... more
We test for the presence of low-dimensional chaotic structure in crude oil, heating oil, and unleaded gasoline futures prices from the early 1980s. Evidence on chaos will have important implications for regulators and short-term trading... more
In this paper we analyze the price dynamics of Alaska North Slope crude oil and L.A. diesel fuel prices. We employ VAR methodology and bivariate GARCH model to show that there is a strong evidence of a uni-directional causal relationship... more
This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will... more
The atomistic structure and phonon transport in aluminosilicate glasses made via an interfacial mixing model of the Molten Core process were studied using molecular dynamics simulations. In the simulations, silica glass was brought in... more
Molecular dynamics computer simulations were used to study the atomistic structure of intergranular films (IGFs) between two basal oriented Si 3 N 4 crystals or between combined basal and prism oriented crystals. Ordering of the ions into... more
Molecular dynamics simulations were performed to study the effect of the composition of the intergranular film (IGF) on anisotropic and isotropic grain growth in R-Al 2 O 3 . In the simulations, the IGF is formed while in contact with two... more
Local structure of network modifier to network former ions in soda‐lime alumino‐borosilicate glasses
The structure of soda‐lime alumino‐borosilicate glass was studied using molecular dynamics simulations of samples of varying compositions containing ~20 000 atoms each. Pair distribution functions (PDFs) of cations to oxygen were used for... more
This paper examines the welfare effects of automation in neoclassical growth models with and without intergenerational transfers. In a standard overlapping generations model without such transfers, improvements in automation technologies... more
The conversion of celestite into other strontium compounds, mainly strontium carbonate, is a necessary step for many industrial applications. However, the impurities need to be removed to achieve a suitable celestite grade (N 90% SrSO 4 )... more
The variation of the conduction mechanisms through these composites upon irradiation was also discussed.
Isothermal vapour-liquid equilibrium (VLE) data were measured for alcohol-carboxylic acid systems using a dynamic recirculating apparatus operated isothermally. For super-atmospheric pressures, a stainless steel version of the apparatus... more
BACKGROUND: Many individuals experience visual symptoms associated with near work. The level of discomfort appears to increase with the amount of digital screen use. OBJECTIVE: To study the eye discomfort with near tasks in university... more
Dry drilling only with the assistance of an auger is a reliable and realistic approach to remove abundant soils from the side of a bit in the harsh, dry conditions on the Moon. Based on an elementary analysis, using Janssen's model to... more