Based on mechanisms

The research subject is the process of economic and mathematical modelling of time series characterizing the bitcoin exchange rate volatility, based on the use of artificial neural networks. The purpose of the work is to search and scientifically substantiate the tools and mechanisms for developing prognostic estimates of the crypto currency market development. The paper considers the task of financial time series trend forecasting using the LSTM neural network for supply chain strategies.

5p longtimenosee09 08-04-2024 10 1   Download

In the course of current research the procedure of obtaining of the piecewise linear vibration systems time and frequency responses have been developed. The method is partly analytical and partly numerical and is based on combining of linear solutions of different sections in a cycle of motion. In a row with the method of obtaining of the exact steady state time and frequency response, also it is provided sensitivity analysis of the vibration isolator.

86p runthenight07 01-03-2023 10 3   Download

One of the limitations of the BDI (Belief-Desire-Intention) model is the lack of any explicit mechanisms within the architecture to be able to learn. In particular, BDI agents do not possess the ability to adapt based on past experience. This is important in dynamic environments as they can change, causing previously successful methods for achieving goals to become inefficient or ineffective.

108p runthenight07 01-03-2023 10 3   Download

Detailed objectives of this study are: to analyze the risk of failure and probability of failure of existing reinforced concrete bridges qualitatively and quantitatively; to consider the effects of interactions among various deterioration parameters and among bridge components on system failure; to identify major durability related distress mechanisms of deterioration of reinforced concrete bridges and model the subsequent risk of failure of bridge system;…

163p runthenight07 01-03-2023 8 3   Download

This research investigates a means of negating such shortcomings and reaping the benefits of both LPBF additive manufacturing and traditional manufacturing methods by joining such parts together using laser welding in the autogenous mode (no fillers required). Based on the literature review conducted in this field and the gaps identified, a two-stage methodology was utilised, as per following.

191p runthenight04 02-02-2023 7 5   Download

Theoretical aim: An overview study of the production process, physicochemical properties and applicability of 2.5-dimethylfuran on on internal combustion engines (especially SI engines) to determine the reasearch gap, scope and plan; the theoretical basis study of combustion and emission of SI engines using DMF as fuel to examine the technical parameters and emissions of the engine when using DMF-gasoline blends on a gasoline engine.

28p closefriend09 16-11-2021 25 6   Download

Object and scope: Small ship diesel engines with the range of power from 50 hp to 100 hp; traditional diesel fuel with 0.05% sulfur content, ULSD with 0.001% sulfur content, and Biodiesel originated from coconut oil; fabrication of ultrasonic wave-based equipment/system to produce homogeneous fuel blend;fuel supply system, exhaust system, and control and test system of the engine; testing equipment for engine power and emissions parameters.

27p closefriend09 16-11-2021 19 5   Download

Research and improve scheduling admission control mechanism to enhance QoS based on incoming burst rate prediction at core node to improve scheduling efficiency for low QoS bursts but still ensure a level of service quality for high QoS bursts. The effectiveness of the scheduling admission control mechanism was valued through simulation and mathematical analysis.

26p gaocaolon12 18-06-2021 27 3   Download

Objective: This dissertation explores the influence of pectoral fin structures at different swimming modes on a robotic fish's locomotion behavior; Some objectives are addressed to achieve the mentioned aim as follows: Firstly, new designs based on bio-inspired pectoral fin types are constructed. Secondly, to describe fin deformation and body part movement, novel dynamically mathematical models are developed.

28p extraenglish 26-05-2021 27 5   Download

The main objective of the thesis is to provide general methods to control oscillation based on measurement of energy flow, namely: Find the optimal solution for passive control systems based on energy flows; propose the semi-active control algorithms to control the energy flow.

27p capheviahe27 23-02-2021 20 3   Download

Manufacture composite based on epoxy reinforced by glass fiber with organ – modified nanosilica using organotitanate curing agent that have good mechanical strength, thermal stability, flame restraint ability; improve the toughness of epoxy resin by incorporating reinforcing agent such as organ – modified nanosilica and glass fiber with appropriate manufacturing condition and ratio.

28p capheviahe26 25-01-2021 30 3   Download

To successfully fabricate sensor based on α-Fe2O3, ZFO NFs and their loading with RGO by on-chip electrospinning method. To explore the effect of fabrication parameters (i.e. solution composition, heat treatment, electrospun time, and RGO concentration) on the NF morphology, structure and H2S gas sensing properties. To clarify H2S gas-sensing mechanism of the sensors of α-Fe2O3, ZFO NFs and their incorporation with RGO.

141p trinhthamhodang7 31-08-2020 12 2   Download

The blends based on polyvinyl chloride (PVC), nitrile-butadiene rubber (NBR), natural rubber (NR) and polyethylene (PE) were made by three different methods. The mechanical properties of these blends in dependence of mixing time and temperature were characterized. The result showed that the two-step blending method, where PVC and NBR were first mixed together and then blended with NR and PE, is the best one to prepare blends with high mechanical properties.

6p 12120609 01-06-2020 16 0   Download

The effect of limonene on physicochemical properties of starch-based films (moisture absorption, solubility in water, wettability, mechanical properties) were compared to glycerol plasticized system.

8p tocectocec 25-05-2020 11 2   Download

The mechanism of corrosion inhibition was explored and supplemented by adsorption and surface morphological studies. Quantum mechanical investigations on corrosion behaviour of compounds were also conducted and satisfying correlation was noticed between the results of corrosion measurement methods and quantum mechanical evaluations.

12p tocectocec 25-05-2020 20 2   Download

The corrosion inhibition efficiencies of two novel Schiff bases, namely (E)-3-[thiophen-2-lmethyleneamino]benzoic acid (T2YMABA) and (E)-4-(5-[(2-phenylhydrazono) methyl]thiophen-2-yl)benzoic acid (PHMT2YBA) on mild steel (MS) in 1.0M HCl solution has been investigated and compared using electrochemical impedance spectroscopy and potentiodynamic polarization analysis.

10p tocectocec 25-05-2020 19 2   Download

This Master of Science degree thesis aims at investigating, studying and developing the new physical layer for the new handled generation of terrestrial TV standard DVB-NGH. This new physical layer is based on the DVB-T2 physical layer specification, but it introduces several advanced mechanisms to allow the transmission of high definition TV services in mobile environments. The main objective of this thesis work is focused on illustrating the benefits of the new physical layer when compared to T2 physical layer.

42p son248 24-03-2020 25 2   Download

This Master of Science degree thesis aims at investigating, studying and developing the new physical layer for the new handled generation of terrestrial TV standard DVB-NGH. This new physical layer is based on the DVB-T2 physical layer specification, but it introduces several advanced mechanisms to allow the transmission of high definition TV services in mobile environments. The main objective of this thesis work is focused on illustrating the benefits of the new physical layer when compared to T2 physical layer.

42p son248 24-03-2020 28 2   Download

Research targets of the thesis: Fabricating spinel ferrite nanoparticle M1-xZnxFe2O4 (M = Mn, Co; 0,0 ≤x≤0,7) with controlled parameters affecting to Hc , TC and D. Establishing semi-experimental models based on experimental results to explain the correlation between SLP and (Keff, D) in order to figure out suitable mechanisms for calculating SLP value of CoFe2O4 nanoparticle.

26p xacxuoc4321 11-07-2019 60 6   Download

The objective of the research is to assess the reinforcement possibility of CNT in the rubber substrate and blend rubber in order to create rubber nanocomposite materials with a high mechanical properties, sustainability in the solvent, and suitable electrical conductivity.

28p change04 08-06-2016 44 4   Download