A Poisson process
X
ε
(
t
) with intensity density function
ε
−1
λ
(
t
) is observed on interval
a
,
b
. The problem is to estimate the function
λ
(
t
). It is assumed that the unknown function
λ
(
...t
) belongs to a given class of functions analytic in a given region
G
⊃
a
,
b
and is bounded there by a given constant
M
. The parameter
ε
is supposed to be known and the problem is considered as
ε
→ 0.
One of the important tasks of this work is to assess the reliability of hydraulic structures of existing reservoirs in Uzbekistan, including CMI, to ensure the safety of hydraulic structures as a ...result of spiritual and physical deterioration as a result of the long-term operation of hydromechanical equipment. This article addresses the tasks that are considered important. The article examines the technical condition of the existing hydraulic structures, mechanical equipment and control and measuring devices in the Kuyumozor reservoir and assesses the reliability of the structures based on the reliability criteria.
The main problem of the paper looks as follows. A functional parameter
θ
∈ Θ ⊂
L
2
(−∞,∞) is observed in Gaussian noise. The problem is to estimate the value
F
(
θ
) of a given function
F
. A ...construction of asymptotically efficient estimates for
F
(
θ
) is suggested under the condition that Θ admits approximations by subspaces
H
T
⊂
L
2
with reproducing kernels
K
T
(
t
,
s
),
K
T
(
t
,
t
) ≤
T
.
The article deals with the features of composition in architectural design for most of cases. On the basis of well known parameters of form there is conducted a comparison with different kinds of ...visual Arts. There is established that at present time ordinary averaged architecture has definite natural restrictions in form and placement. A value and colour are the elements which have more possibilities for the real architectural practice. They are relatively cheap in comparison to form and placement.
Abstract
At coming up with of civil engineering constructions within the watercourse hydraulic calculation of the riverbeds is made. Hydraulic calculation establishes bottom main parameters: width, ...depth of a stream and radius of curvature of the river beds, and so on. In article results of studying of changes of morphological parameters of the riverbed are yielded: width of a bed, average depths of a stream and radius of a dynamic axis of a stream on river beds in conditions of regulated a water flow on water basins. On the footing of the statement of results from examination of hydraulic parameters of a stream with use of a method of dimension connections of width, average depths of a stream and radius of a dynamic axis of a stream from the factor forming a river bed are received.
Abstract
This article considers the main methods of regulating water consumption and power of micro hydroelectric power plants. New technical solutions for screw jet turbines adapted to low pressures ...and water flow rates are proposed. The Archimede’s screw turbine is a cost-effective and environmentally friendly microhydropower technology that operates at high efficiency at low pressure and medium flow rates. In this case, the change in power depends on the following parameters: the number of blades, water flow, the angle of inclination of the blades and the height of the pressure. Preliminary calculations carried out by the authors show that the power of a microhydroelectric power station depends on individual factors of the area. With an increase in the speed of the water flow, the speed of the water wheel also increases, and in turn, the electric power of the microhydroelectric power station increases.
The article analyzes the sources of the development of specific mechanisms, assessing the future problems of regional agro-industry development. Agro-industry as a production facility forms a complex ...system. In this case, as the main elements, it is suggested that the criterion of non-loss of characteristics as a result of processing information about these elements is primary. It is justified that the information system of the Big Data type, the models that describe the laws, the mechanism that enables the improvement of the models, and the algorithms that activate the mechanism are of particular importance as these sources. Researchers estimate that the mechanism that allows for the improvement of system research models is artificial intelligence, and the main problem here is the obstacles in the development of algorithms that determine the trajectory of its activity. These obstacles are explained by the complexity of the system, the lack of sufficient information to assess the importance levels of its elements, low accuracy, and the fact that the level of importance is presented differently in different sources. Taking into account that agro-industry is a complex enough system, the need to research the laws of this network requires a big data type information system, and algorithms for using artificial intelligence-based mechanisms are proposed.
An Extension of Local Time Ibragimov, I. A.; Smorodina, N. V.; Faddeev, M. M.
Journal of mathematical sciences (New York, N.Y.),
11/2021, Letnik:
258, Številka:
6
Journal Article
Recenzirano
Odprti dostop
In this paper, we construct an analog of local time for an arbitrary Lévy process with finite second moment. When our process is a Wiener process, this object coincides with the local time.
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