The flight scheduling process is briefly described in the article. It is one of the most important stages of space flight control task solution. Three stages of flight scheduling are given: strategic, tactical and executive. The result of each scheduling phase is presented by special plan type: on-orbit operation summary, weekly lookahead plan, short-term plan. The difference of these plan types is in planning interval and data processing depth. The mathematical modeling of all required data and restrictions is made. A crew downtime minimization is the selected optimization criterion. Modified genetic algorithm for decision of assigned task is designed. The future tasks regarding crew activities scheduling process optimization are defined
Keywords: scheduling, flight operation, crew activities, optimization, mathematical modeling, genetic algorithm
A voice activity detector (VAD) is a device, which analyses a speech signal and generates the signal corresponding to the period containing only noise. In the present work is offered VAD, which increases the probability of correct detection the presence or absence of human speech.
The correct detection begins with SNR 7-10 dB. The quality of derived speech signal remains the same.
Keywords: voice activity detection, voice activity detector, VAD, silent interval detection, speech, speech signals
Now development of the administrative principles is directed on selection of the corresponding forms of total activity of employees of the investment and construction sphere. The methodology of a point of profitability shows, how many production the organization has to realize to refund the expenses. We offer model of management of integration in construction, using the mathematico-statistical analysis and considering calculation of a point of profitability. Here factors – receptor, administrative and effector take place. In experience information of the construction enterprises of Rostov-on-Don was used. The profit after introduction of innovations grows quicker, than before their introduction since the point of profitability decreases after calculation of the organization for invested in innovations. On examples the criterion of expediency of merge of the construction organizations – the carried-out amount of works is shown. On the basis of this criterion it is possible to solve a problem of streamlining of operations in construction systems by integration of information space of organizational and technological, economic and other applied systems.
Keywords: аssessment, effective, land tenure, methods, expert, factors, hierarchy
Case is an event that took place in the past and can be an example for similar steps in present. Case-based reasoning (CBR) is a methodology of finding a decision based on previous experience. The main difficulties in CBR are recognition of present situation of decision-making and finding similar case in the past. Making a decision in the field of purchasing drugs is a quite difficult and many-valued task with a plenty of various parameters, which however might be solved with the help of CBR. CBR is an important and perspective area of artificial intelligence (AI) decision support systems. Constantly growing research amount has already led to breakthroughs in theoretical part of AI and in AI-based applications. The general case model and formula for determining cases similarity is suggested in this work. Application of the formula will help determine similarity of cases and make the better decision.
Keywords: case, case-based reasoning, case description, decision support system, case-based decision making
To solve the problem of choosing an algorithm of optimal allocation of resources to development of the energy producing industry, initially held the formalization of this task and the required payment ratio. The relationship led to the conclusion of one of the most effective methods for finding optimal solutions-dynamic programming method
Keywords: algorithm, еnergootrasl, distribution, development, function, script charts, dynamic programming
The proposed method of designing hardware components optical switching systems simplifies prototyping and development of systems of optical switching and multi-core VLSI. This method allows to automatically set parameters of the optical system at the design stage, depending on the requirements. This method may be cost-effective at the stage of technical specifications of the project, as will reduce the time required for its coordination between the customer and the design engineer.
At the heart of developing a method of designing systems, optical switching elements is a comprehensive analysis of the equations and functions describing the electrical and optical properties of laser heterostructures, as well as electro-optic modulators and Fabry-Perrot resonators. Fundamental static and dynamic characteristics of semiconductor diode lasers can be calculated by using a set of kinetic equations describing the interaction of electrons, holes and photons in the active layer of the laser structure. At various stages of this method is processing, evaluation and calculation of the main characteristics of the elements of integrated optical switching systems.
Keywords: optical switching, integrated injection laser, quantum-scale heterostructure, amplitude modulation, terahertz range
The paper details the application of the sleep events search algorithm based on "histograms analysis" method. The algorithm will be used for the "body movement" sleep event detection. This event search priority and actuality is caused by its close connection with other events, as will be discussed in more detail in the relevant section of the article. The main problems arising in this method usage and their solutions are described. Phased method structure is discloses, where each phase is represented as a separate item with detailed comments. A comparative analysis of the results obtained with the automatic search with pre-spaced events manually is made. Conclusion on the basis of the experiment and recommendations for further method development are made.
Keywords:
Possibilities of using mathematical programming methods for obtaining optimal solutions of structural units were shown herein. Method of personal optimization based on monotonicity property of the used relations was applied as optimization algorithm. Advisability of using mathematical simulation methods when providing complex safety of construction facilities and reduction of breakdown occurrence is emphasized.
Keywords: optimal design, mathematical simulation, complex safety, personal optimization, plate structures, risk.
Computer-aided diagnostic system of semiconductor structures for the tested structures volt-ampere and voltage-capacitance characteristics measuring at different temperatures in wide ranging bias voltage was made in this work. Computer-aided diagnostic system of semiconductor structures allows to define parameters of deep-lying levels, profiles of alloying impurities distribution, charge carriers life span, surface states energy spectrum density with high reliability and efficiency and can be used for processing and optimization of technological modes for solid-state electronics structures generation.
Keywords: diagnostics, dynamic spectroscopy of deep-lying levels , spectrum, deep-lying levels, surface states, profile of impurity distribution
The problem of the current method of mass cadastral valuation of land settlements with the type of permitted use - for individual housing. This problem is that the regression analysis used in the present method does not include the cost depending land on their mutual position. A study of the source data proved that the market value of land depends on the degree of proximity of land from each other. On this basis, the work was proposed to use a new, more correct cadastral valuation method - the method of geostatistical interpolation (kriging).
Keywords: cadastral value, geostatistics, regression, interpolation, kriging
In this work we have investigated the structure of individual single-walled and multi-walled carbon nanotubes by high-resolution electron microscopy and electron diffraction. To grow carbon nanotubes we used a catalytic chemical vapor deposition method. It was shown, that this synthesis protocol gave in general single-walled and double-walled carbon nanotubes with a high level of crystallinity. The diameters of the nanotubes were in the range 1.5 - 7 nm. We also observed that there was a certain level of amorphous carbon deposited on the nanotube surface during the growth. In this work we also present the structure analysis of the double-walled carbon nanotube by means of electron diffraction. We show that the structural date derived from electron microscopy and electron diffraction agree within the experimental error.
Keywords: Carbon nanotubes, electron diffraction, electron microscopy
The article considers the essence and specifics of state regulation of local markets in the region. With respect to implementing the principles of sustainable development highlights the key tasks of state regulation in the process of formation and development of local markets, determine the forms and methods of state regulation.
Keywords: region; regional economy; sustainable development; local markets; trends
The atricle considers the problem of finding the best carrier. It describes by the expert method of solving the problem, as well as an algorithm for selecting a carrier. Describes a software module implemented with the involvement of technology ActiveX, which greatly simplifies the process and reduces the development time of projects. The proposed application allows you to define a list of the best carriers, ranked by rating according to the user's request.
Keywords: Carrier selection, expert method, weighting coefficient, rank, user application
Identification of railway vehicles is relevant for the conversion from automatic control systems with manual data input to automatic modeling environment of train and vehicle. The most effective and economic inventory number recognition is optical recognition. But there is question about veracity in such technology. This paper represent the qualitatively new approach for optical recognition based on building integral robust constructive features of vehicles and allowed to significantly increase level of recognition veracity. Proposed technique investigated in introduction subject of automatic vehicle number recognition system (ARNV). Computational experiments demonstrated relevance of proposed technique for using in optical recognition of vehicle numbers.
Keywords: Automatic systems, number identification, vehicle, optical recognition, ARNV, robust features
Estimates by the Finnish experts of prospects of introduction of a visa-free regime of Russia with Finland are considered. Estimates of its influence on business life of Finland are given. It is shown that 60% of respondents expect obtaining benefit by the companies from introduction of a visa-free regime, about 30% don't expect any consequences, and only 8% assume emergence of problems.
Keywords: visa-free mode, business life, Russia, Finland.