Analysis Of Possible Application Research Articles

Application of State Models in a Binary–Temporal Representation for the Prediction and Modelling of Crude Oil Prices

Crude oil prices have a key meaning for the economies of most countries. Their levels shape the general production costs in many sectors. Oil prices are also a base for financial derivatives like CFD contracts, which are popular nowadays. Due to these reasons, the possibility of an effective prediction of the direction of future changes in the price of crude oil is especially significant. Most existing works focus on the analysis of daily closing prices. This kind of approach results, on the one hand, in losing important information about the dynamics of changes during the day. On the other hand, it does not allow for the modelling of short-term price changes that are especially important in cases of financial derivatives having crude oil as their base instrument. The goal of the following article is the analysis of possible applications of a binary–temporal representation in the modelling and construction of effective decision support systems on the crude oil market. The analysis encompasses all researched state models, e.g., those applying mean and trend analysis. Also, the selection of parameters was optimized for Brent crude oil rates. The presented research confirms the high effectiveness of our state modelling system in predicting oil prices on a level that allows for the construction of financially effective investment decision support systems. The obtained results were verified based on proper backtests from different quotation periods. The presented results can be used both in scientific analyses and in the construction of investment support tools for the crude oil market.

Синтез оптической нейроморфной структуры с функциональным разделением нейронов для распределения потоков информации

The work presents analysis of possible application of self-generating neural networks, which can independently generate a topological map of neuron connections while modelling biological neurogenesis, in multi-threaded information communication systems. A basic optical neural network cell is designed on the basis of the applied layered composition performing data processing. A map of neuron connections represents not an ordered structure providing a regular graph for exchange of information between neurons, but a set of cognitive reserve represented as an unconnected set of neuromorphic cells. Modelling of neuron death (apoptosis) and creation of dendrite-axon connections makes it possible to implement a stepwise neural network growth algorithm. Despite challenges in implementing this process, creating a growing network in an optical neural network framework solves the problem of initial forming of the neural network architecture, which greatly simplifies the learning process. Neural network cells used with the network growth algorithm resulted in neural network structures that use internal self-sustaining rhythmic activity to process information. This activity is a result of spontaneously formed closed neural circuits with common neurons among neuronal cells. Such organisation of recirculation memory leads to solutions with reference to such intra-network activity. As a result, response of the network is determined not only by stimuli, but also by the internal state of the network and its rhythmic activity. Network functioning is affected by internal rhythms, which depend on the information passing through the neuron clusters, which results in formation of a specific rhythmic memory. This can be used for tasks that require solutions to be worked out based on certain parameters, but they shall be unreproducible when the network is repeatedly stimulated by the same influences. Such tasks include ensuring information transmission security when using some set of carriers. The task of determining a number of frequencies and their frequency plan depends on external factors. To exclude possible repeating generation of the same carrier allocation, it is necessary to use networks of the configuration under consideration that can influence generation of solutions through the gathered experience.

VUV spectroscopy of lanthanide doped fluoride crystals K2YF5

K2Y0.99Ln0.01F5 (Ln = Ce, Eu and Sm) single crystals have been synthesized by the hydrothermal technology. The optical properties of Ce3+ and Eu3+ ions doped into K2YF5 matrix have been studied under excitation in the deep UV and vacuum UV (VUV) region. The obtained data from excitation spectra and Dorenbos models have been used to predict the energies of the f-d and charge transfer transitions as well as the energy levels location of divalent (Ln2+) and trivalent (Ln3+) lanthanide ions within the band gap of K2YF5. In particular, the f-d and charge-transfer transitions of Sm3+ in the luminescence excitation spectrum of K2YF5:Sm3+ have been identified. The host referred binding energy (HRBE) and vacuum referred binding energy (VRBE) schemes have been constructed for Ln2+ and Ln3+ ions doped K2YF5 crystal which were used for the analysis of possible applications of K2YF5 doped with Ln3+ ions as thermoluminescence materials.

Analysis of Possible Application of Personal Data, Personal Secrets, and Medical Confidentiality to the Regulation of Relations Concerning Genetic Information

The analysis of the European and Russian legislation and documents of international organizations made it possible to draw the following conclusions. The uniqueness of genetic data is determined by the following characteristics. These data are relatively static, do not develop by themselves during life. They are in principle unchanged, since it is impossible to simultaneously modify all identical genes present in all cells of the same organism. They can be invariant with respect to their carrier, going beyond the individual carrier through transmission from generation to generation. The subject can be identified using various identifiers specific to the subject’s physiological, genetic, psychological, cultural, or social identity, such as biometric data such as facial image, fingerprints, iris, venous palm pattern, genetic markers, and "digital" footprints. The legal regime of secrecy can be applied to genetic information by analogy, taking into account the specifics of the source of origin of genetic information and special rules for its processing. However, existing restricted access information regimes do not take into account the specifics of genetic data. The difference between genetic information and other personal data and medical secrecy protected in the regimes is that other family members — blood relatives or a spouse may be interested in it, in addition to the information carrier itself, which is not taken into account in the current Russian legislation. Special mechanisms for the legal protection of genetic information should be introduced, which should be enshrined in a special law "On genetic information".

Minimization of the waiting time to start performing a radiation monitoring mission via a fleet of unmanned aerial vehicles in the new zone of responsibility

The analysis of possible applications of unmanned aerial vehicles for per-forming radiation monitoring missions was carried out. This paper proposes an approach to minimization of the waiting time to start performing a radiation mon-itoring mission via a fleet of unmanned aerial vehicles (hereafter UAVs) in the new zone of responsibility. The approach includes the following steps: distribu-tion of UAVs in the zones of responsibility and setting the time for performing a mission for each UAV; determination of the starting position location where UAVs battery can be replaced; defining the new zone of responsibility and time for performing a mission in the zone; construction of an algorithm for calculating parameters necessary for solving the optimization problem; formulation of the optimization problem and constraints. Parameters to be calculated: the UAV flight time from the current mission zone to: a) starting position; b) a new zone (with making the intermediate landing and without making one); a flight time from the new zone to the starting position; the UAV battery life required for per-forming the mission in the new zone; the waiting time to start performing the mis-sion in the new zone and the current battery life for the UAV at the start of its mission in the new zone for the following cases: a) the UAV reaches the new zone with making the intermediate landing, b) the UAV reaches the new zone without making one. An example of the proposed approach implementation for a fleet, con-sisting of five Ukrainian electric UAVs “Furiia” and performing missions in five zones of responsibility (one UAV performs a mission in one zone) within the Za-porizhzhia NPP thirty-kilometre radius zone is given. Six possible new zones are considered and the waiting time to start performing a mission in each of these zones is given. It has been get that UAV 5, UAV 4 and UAV 2 can be assigned to three zones, two zones and one zone, respectively. UAV 1 and UAV 2 can not be used in any new zone. Note that the UAV 5 can be used once without making the intermediate landing at the starting position for its battery replacement and twice with making the intermediate landing. Further studies should take into account the following cases: the fleet consists of various UAVs, two or more UAVs should be assigned to the new zone.

The applications of GNSS systems in logistics

The development of navigation satellite systems allows them to be used in many areas of trade, services and industry. This development is strongly visible in industries related to logistics and transportation where car navigation is becoming a standard for all kinds of vehicles. In this paper the author discusses navigation satellite systems, the princi-ple of their operation and presents analysis of possible applications in businesses related to logistics and transport.

Use of the method for addressing the challenges of resources procurement management at a mining enterprise

The article is devoted to the analysis of possible application of the total cost of ownership method for the purchase of resources at a mining enterprise. The description of the total cost of ownership method and experience of using this method in other spheres is provided. The article identifies the essential components needed to calculate the total cost of ownership of a resource. Particular attention is paid to the ratio of the price of the purchased resource and the total cost of ownership. To justify the relevance of application of this method at a mining enterprise for resources purchase, the technical and economic conditions of mining enterprises have been analyzed, which are quite specific and force to introduce certain adjustments to the application of the considered method and opens up new possibilities for its use. Specific spheres for application of this method at a mining enterprise are determined. The main result of the study is the proposed practical recommendations for the introduction and extension of the practice of using the method when a mining enterprise purchases resources.

Analysis of Possible Application of Temperature Dependences of Processed Materials’ Physical and Mechanical Properties to Define the Maximum Workability Temperature

The results of experimental studies of the different machinability group materials’ characteristics, including tool steel DIN C125W, heat-resistant steel (C - 0.1%, Si - 0.6%, Cu - 0.3%, W - 0.1%, Mn - 0.4%, Ni - 23%, P - 0.01%, Cr - 12%, S - 0.01%, V - 0.01, Mo - 1.5%, Ti - 3%, V - 0.001%, Al - 0.6), nickel-based superalloy (Fe - 4%, C - 0.1%, Si - 0.6%, Mn - 0.5%, S - 0.01%, P - 0.01%, Cr - 15%, Ce - 0.01%, Mo - 4%, W - 6%, V - 0.3%, Ti - 2%, Al - 2%, B - 0.01%), the changes in the minimum surface wear, maximum cutting path, and cutting temperature in the processing of these materials, as well as the experimental data analysis showed that the extreme values of changes in the materials’ physical and mechanical properties under the temperature impact can be defined as the minimum surface wear temperature and maximum cutting path temperature, that is, the conditions corresponding to the maximum workability of the materials. It is possible to use the materials physical and mechanical property dependence on temperature for defining the maximum material workability temperature when processing it by cutting. The article suggests a method to define the maximum material workability temperature.

Analysis of Possible Application of High-Temperature Nuclear Reactors to Contemporary Large-Output Steam Power Plants on Ships

Abstract This paper is aimed at analysis of possible application of helium to cooling high-temperature nuclear reactor to be used for generating steam in contemporary ship steam-turbine power plants of a large output with taking into account in particular variable operational parameters. In the first part of the paper types of contemporary ship power plants are presented. Features of today applied PWR reactors and proposed HTR reactors are discussed. Next, issues of load variability of the ship nuclear power plants, features of the proposed thermal cycles and results of their thermodynamic calculations in variable operational conditions, are presented.

The Contribution to the Analysis of the Run Up Test

The article deals with analysis of possible applications easing by Short Time Fourier transformation, in determining the natural frequencies and damage to the monitored equipment. We have focused on the problem when the maximum speed of the equipment at start-up is limited due to the excitation of resonances around this maximum speed. If we are concerned about the frequency region near resonance and above this, and when we do not want to risk damage to the equipment when passing through resonance, then the solution can be complicated. Our solution is based on the use of the excitatory properties of harmonic frequencies generated by the system to build a facility in the desired frequency range. The procedure was applied to solve reducing vibration of the structure in the steel mills and the extension of the interval of possible use of frequencies in production.

Анализ возможностей применения в газоаналитических приборах вида "электронный нос" на основе однокристальных чипов переходных электрических процессов в сенсорных сегментах при воздействии различных газов

Анализ возможностей применения в газоаналитических приборах вида "электронный нос" на основе однокристальных чипов переходных электрических процессов в сенсорных сегментах при воздействии различных газов

High performance integrated terahertz sensor for detection of biomolecular processes in solution

Biomolecular processes occurring within a physiological buffer induce changes in the dielectric permittivity of the solution at terahertz frequencies (0.1-10 THz). Therefore novel high sensitivity THz sensors could potentially satisfy the need for a label-free, immobilisation-free, real-time and in-solution biosensor technology. However, the application is hindered by insufficient performance of current measurement techniques resulting in low sensitivity, low resolution, high detection limit and excessive sample volume. This work presents an integrated THz sensor topology designed to overcome the aforementioned challenges, performance evaluation with a number of typical biomolecule processes, and analysis of possible applications. The state-of-the-art performance is demonstrated with room-temperature operated solid-state active components operating at f ≃ 0.25 THz: the sample volume is V = 4 nl, detection limit is DL <;9 mg/l, sensitivity to biomolecule concentration, conformation and binding. The technology could become a versatile tool for hydration shell study, protein conformation and function analysis, concentration measurements including nucleic acid amplification by polymerase chain reaction, protein and nucleic acid binding assay.

APPLICATION OF BROWN’S GAS FOR A DIESEL ENGINE RUNNING ON RAPESEED OIL / BRAUNO DUJŲ PANAUDOJIMAS ALIEJUMI VEIKIANČIAME DYZELINIAME VARIKLYJE

The article presents the analysis of possible applications of Brown’s gas to the diesel engine running on oil. The paper also contains a review of experimental works. The selected fuel combinations are as follows: diesel fuel, diesel fuel and Brown’s gas, oil (rapeseed oil) and oil and Brown’s gas. Test results have shown that an additional supply of Brown’s gas to the engine results in a decrease in the amounts of carbon monoxide (CO) and smoke level; however it increases the total emission of nitrous oxides (NOx). The supply of Brown’s gas at low engine load increases comparative effective fuel consumption and reduces high efficiency. Nevertheless, these performance indicators tend to improve at average engine load. Santrauka Straipsnyje nagrinėjamos Brauno dujų panaudojimo galimybės aliejumi veikiančiame dyzeliniame variklyje. Apžvelgti eksperimentiniai darbai. Pasirinkti šie degalų deriniai: dyzelinas, dyzelinas ir Brauno dujos, aliejus (pagamintas iš rapsų) bei aliejus ir Brauno dujos. Bandymo rezultatai rodo, kad varikliui papildomai tiekiant Brauno dujas, mažėja anglies monoksido (CO) kiekiai ir dūmingumas, bet didėja suminė azoto oksidų emisija (NOx). Brauno dujų panaudojimas esant mažoms variklio apkrovoms didina lyginamąsias efektyviąsias degalų sąnaudas ir mažina efektyvųjį naudingumo koeficientą, bet esant vidutinėms apkrovoms šie rodikliai gerėja.

Implementation of Automatic Identification Technology in a Process of Fixture Assembly/Disassembly

Radio Frequency Identification (RFID) technology presents automatic identification technology that can be used in product life cycle various phases, especially in the manufacturing phase. The analysis of possible application of RFID technology in machining and inspection operations for fixture manufacturing assembly/disassembly process is presented in this paper. Furthermore, assemble/disassemble fixture manufacturing system structure and conception is presented. An analysis involves hardware and software components that the designed system for assembly/disassembly needs to have. Suggested system verification was done in laboratory conditions. Verification uses ninety-six parts and adequate fixtures. The paper concludes with final remarks, discussing advantages and disadvantages of the developed system.

Analysis of Possible Applications of Dual ESPs—A Reservoir-Engineering Perspective

Summary Relatively few field installations of a dual-electric submersible-pump (DESP) completion have been reported. In general, the purpose of the second pump was either to increase the pumping capacity, or to act as a backup to improve the reliability of the pumping system. However, DESPs potentially can address a much wider range of reservoir management challenges. This paper will analyze the performance of a DESP in a range of reservoir scenarios. It will show how DESP performance can be modeled by use of commercially available, coupled, well-performance and reservoir-simulation tools. Four DESP applications were analyzed. Where possible, the robustness of the numerical-modeling results will be compared with analytical predictions. DESPs gave improved oil production and recovery in reservoirs with strong aquifer support and became progressively more attractive in a layered-reservoir scenario as the pressure difference between the production zones increased. However, while DESPs had no significant advantages in a long, horizontal well placed in a homogeneous reservoir, they can increase recovery in a tilted, layered reservoir. A slim, deepwater well completed with a lower-capacity downhole pump and a larger (multiwell) seabed booster pump was shown to be a potentially attractive solution for some reservoir developments. This work provides a comparison of the drivers for the choice of a single electric submersible pump (SESP) and a DESP in the scenarios studied. It illustrates a modeling methodology and provides DESP-selection guidelines, thus aiding the increased application of this technology.

Stem cell transplantation (SCT) for Waldenstrom's macroglobulinemia (WM).

Waldenstrom's macroglobulinemia (WM) is a low-grade lymphoplasmacytoid malignancy of unknown etiology. It primarily affects elderly patients and is characterized by a monoclonal IgM component, varying degrees of cytopenias, lymphadenopathy and manifestations related to hyperviscosity syndromes. WM is usually treated with single agent nucleoside analogues or alkylating agents that often provide high response rates and durable remissions. Recurrence of the disease after primary therapy is not uncommon, and resistance to both alkylating agents and nucleoside analogs eventually emerges. Small numbers of patients have undergone high-dose chemotherapy (HDC) with either autologous (n = 24) or allogeneic (n = 6) stem cell transplantation (SCT) as treatment for this disease. Most patients in both groups achieved remission. Results are promising and a more in-depth analysis of possible applications of this treatment modality is attempted with this mini-review.

A nonstationary microwave spectrometer

A submillimeter spectrometer for measurements of low concentrations in gas mixtures is developed and created. The radiation source is a 260–380 GHz backward wave oscillator (BWO). The BWO frequency is stabilized by means of a reference microwave channel, incorporating a cell with a gas under test the spectral line of which is used as frequency discriminator. Fast frequency scanning in the vicinity of the spectral line is used to reduce the effects of acoustic noise and vibrations and to upgrade time resolution. The background’s signals due to interference in the measuring cell of the spectrometer are suppressed by using a original nonstationary modulation method. Theoretical analysis of that method has been carried out. A description of the design and analysis of possible applications for the spectrometer, as well as the results of some experimental studies supported by the spectrometer are provided.