Methods for Optimizing the Objects Detection Range by a Multi-Channel Optical-Electronic System

Author(s):  
A.A. Anikyev ◽  
N.V. Baryshnikov ◽  
V.I. Zavarzin

The paper describes the possibilities of increasing the objects detection range by a multichannel optoelectronic system, which can be done in two ways: by choosing a statistical criterion for making a decision and by a rational design of the receiving optical system. When analyzing ways to increase the quality of processing the signals received by the system through heterogeneous channels, we found several ways to improve the quality of decisions made: at the algorithmic, functional or design levels. In this study, we chose the methods of channel integration at the algorithmic and constructive levels. Since the problem of multi-alternative object detection by several spectral channels is being solved, the Bayesian criterion for the search quality of the minimum average risk was chosen at the algorithmic level as the most appropriate. The search for the minimum average risk was carried out according to the characteristics of the object type. The choice of this criterion when evaluating signals from two spectral ranges provided a gain in the detection range of about 10 %. At the design level, the function of the ratio of irradiance on channels, e.g. passive infrared and laser radar channels, is nonlinear. To ensure the same value of the increase in the detection range for each channel, it is necessary to redistribute the threshold sensitivity of the channels. We opted for a method of equalizing the ranges by changing the transmission coefficients of the channels. The alignment of the light-energy characteristics of the channels at the design level leads to a gain in the detection range of scanned objects by 5--7 %

2018 ◽  
Vol 1 ◽  
pp. 198
Author(s):  
Lusy Tunik Muharlisiani ◽  
Henny Sukrisno ◽  
Emmy Wahyuningtyas ◽  
Shofiya Syidada ◽  
Dina Chamidah

Service at the “Kelurahan” is a very important part in determining the success of development, especially in public service. The problem faced is the lack of skill level of the “Kelurahan” apparatus with the more dynamic demands of the community and the archive management system is still conventional and manual that is writing the identity of the archive into the book agenda, expedition, control card, and borrowed archive card, so it takes a more practical electronic system, effective and efficient so required to develop themselves in order to improve public services. Conventional administration and archive management must be transformed into cloud-based computing (digital), for which archiving managers should always be responsive and follow these developments and wherever possible in order to utilize for archival activities, with greater access expected archives are evidence at once able to talk about historical facts and events and be able to give meaning and benefit to human life, so archives that were only visible and readable at archival centers can now be accessed online, and even their services have led to automated service systems. Using Microsoft Access which its main function is to handle the process of data manipulation and manufacture of a system, this system is built so that the bias runs on Cloud which means Cloud itself is a paradigm in which information is permanently stored on servers on the internet and stored. The purpose of this program is the implementation of administrative management that has been based cloud computing (digital) and is expected to be a solution in managing the archive so that if it has been designed and programmed, it can be stored in the computer and benefi- cial to the “Kelurahan” apparatus and add in the field of management archives in the form of improving the quality of service to the community, can facilitate and scientific publications.


2021 ◽  
Vol 1 (1) ◽  
pp. 150-154
Author(s):  
I. Yu. Melnikova ◽  
Yu. A. Tokarevа

The purpose of the research. The optimization of the method electrocardiogram’s interpretation (ECG) for diagnosis and prognosis of fatal cardiogenic situations among children and teenagers depending on the severity of myocardial electrical instability.Materials and methods. The authors propose to use a modified method for assessing the “electrical quality of the heart”, proposed by A. N. Volobuev and co-authors in order to assess the electrical instability of the myocardium among children and teenagers. There is a formula which helps to estimate the index of “electrical quality factor of the heart” among children and teenagers: D=(aR/aT):(QT/QRS), where D is the index of “electrical quality factor of the heart”, aT and aR is the amplitude of R wave and T, QT — QT interval, QRS — interval, QRS. ECG was recorded in 12 leads, ECG assessment was carried out according to generally accepted rules.Results. Based on the analysis of 234 ECG of children and teenagers from the neonatal period to 18 years, the criteria of the average value of the index of “electrical quality factor of the heart” (D) were defined, D =1,09 +/- 0,03. It is proved that the value of the index “electrical quality factor of the heart” does not depend on the sex and age of the child. There was a decrease in the index of “electrical quality factor of the heart” was revealed among children with the lengthening of the QT interval.Conclusion. The index of “electrical quality factor of the heart” in pediatric practice allows to predict the risk of fatal cardiogenic conditions, to develop tactics of dynamic monitoring of patients, to evaluate the efficiency of treatment. When D<0.55 it is possible to predict high risk, at a value of 0.55≤D<0.80 — average risk, and at D≥0.80 — low risk of fatal cardiogenic conditions among children and teenagers.


2016 ◽  
Vol 2 (4) ◽  
pp. 291
Author(s):  
Evangelia Prevyzi ◽  
Georgios Argyriou ◽  
Thomai Kollia ◽  
Athanasia Nestor ◽  
Anastasia Kotanidou ◽  
...  

Introduction: Dialysis affects the quality of life of hemodialysis patients due on idrasis in physical activities, psychological factors, and social adaptability.  Predominant indicator for assessing the adequacy of dialysis, considered the Kt / V (clearance time/volume of distribution). According to international guidelines, the price which shows adequate dialysis is > 1.2. Aim: The aim of the present study was the association of quality of life of hemodialysis patients with adequate dialysis. Material and Methods: To evaluate the quality of life of hemodialysis patients used the questionnaire KDQOL-SF weighted in the Greek language and the Greek egkyropoiimeno population. Excluded from the study patients with a speaking disability, those who were comatose, aliens, and those undergoing dialysis 3 hours/ 2 times / week. For data processing, used the statistical package SPSS ver.17. Results: Based on the statistical analysis t-test results showed respect to the route of vascular access that patients with graft (31,6%)   had a higher clearance rate adequacy, as well as patients undergoing hemodialysis with high permeability (high-flux) filters (35,8%) and those undergoing dialysis with hemodiafiltration (35,8%).According to the statistical criterion pearson's r and multivariate analysis of linear regression, statistically significant difference was only between Kt / V and forefinger encouraging staff and p = 0,032 and p = 0,015 respectively.Conclusions: The conclusions drawn from this study showed that there was no correlation between quality of life and dialysis adequacy, but only with the index of encouraging staff.


Author(s):  
A.M. Dmitriev ◽  
N.V. Korobova

The limited use of cold volume stamping for the production of parts only for narrow traditional range of such parts in mass and large-scale productions is shown. Original technological techniques that improve the quality of products and the punches fatigue resistance are developed to expand the application of this technology to new types of parts. Such techniques used at various stages of the production process by cold forging of deep steel glasses are described. The value of rational design of stamps and the example of design of well-proven production stamp are shown.


Author(s):  
А.А. Boldyrev ◽  
А.А. Buben’shikov ◽  
D.I. Boldyrev

In modern conditions of rapid development of telecommunication technologies radio engineering means of different function are used everywhere in all spheres of ability to live of the person. Thus organizational-technical systems of civil appointment and power departments use the wide nomenclature of radio-electronic means of various classes with a wide spectrum of parameters, kinds of radiations and operating modes. In turn, it causes formation of difficult electromagnetic conditions in administrative-industrial regions and their near environment. The primary goal of services of radio control in these conditions is control over correctness of use by organizational-technical systems of the allocated resource of a radiofrequency spectrum and the parameters radiating of radio-electronic means. One of the main difficulties with which means of radio control in the course of the analysis of electromagnetic conditions in the set territorial area face a considerable quantity of radiating radio-electronic means with various parameters in a wide range of the relation a signal/noise, and also presence of stirring influence of any hindrances is. These factors make rigid demands to indicators of quality of functioning of panoramic detectors-direction finders which make a basis of mobile and stationary means of radio control. One of the basic indicators of quality of panoramic detectors-direction finders of means of radio control is range of detection of the radio-electronic means, defined by the set level of sensitivity and demanded values of probabilities of detection and a false alarm. Authors in article result results of working out of algorithm of increase of range of detection of signals by means of radio control on the basis of an estimated-correlation-compensatory way of measurement and indemnification of average capacity of additive hindrances in the reception channel. By results of the researches spent in article it is shown that: the increase in average capacity of cumulative external inadvertent and deliberate hindrances for the set typical initial data leads in VHF a range to reduction of range of detection of radio-electronic means not less, than in 1,4 times from the demanded; at demanded value of probability of detection, for example, and probabilities of a false alarm, at relative level of external set of a hindrance the panoramic detectors-direction finder of means of radio control with the realised procedure of measurement and indemnification of average value of capacity (dispersion) of inadvertent, deliberate hindrances and internal noise allows to lower the requirement to the threshold relation a signal/(noise) (on pressure) more, than in 1,3 times that will allow to approach value of range of detection to a reference value.


2021 ◽  
Vol 143 (5) ◽  
Author(s):  
Nam Pyo Suh

Abstract The quality of design determines the performance of all tribological systems. Tribological failures of the system may be avoided through rational and creative design. In that sense, there is a symbiotic relationship between tribology and design. Many tribology problems encountered are often the result of poor system design. By properly designing the tribological system, potential failures caused by friction and wear can be avoided or minimized. Continuous testing of poorly designed tribological systems, which occur in some cases, can be costly without noticeable improvements in the system performance. Since well-designed products yield immense benefits, the creation of tribological systems based on rational design should be pursued. The biggest source of tribological problems is the coupling of the functional requirements (FRs) that are introduced during the early stage of design. We should attempt to eliminate coupled tribological systems to improve the performance of tribological systems. Some examples are given to illustrate the importance of rational designs in implementing tribological systems, including the design of additive manufacturing systems.


2015 ◽  
Vol 770 ◽  
pp. 739-743 ◽  
Author(s):  
A.S. Yuanyushkin ◽  
D.V. Lobanov ◽  
D.A. Rychkov

The key task of the tool manufacturing is to create or to choose such a type of tool, which would permit to provide high processing efficiency, the best tool`s workability and the quality of the machined surfaces with minimum expenses and resources. The optimal choice of the constructive tool modifications from a variety of options takes much time required for the preparation of the tool to work. To solve this problem, we have developed software that allows you to create, organize and carry out a comparative analysis of structural instruments in order to identify rational option for the given conditions of production. Ordering and selection of a rational design of the instrument is carried out in accordance with established procedures of modeling and comparative analysis of design solutions. Application software can reduce design time technological process by 80...90%, and get a substantial annual economic effect.


Vaccines ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 47 ◽  
Author(s):  
Ariane C. Gomes ◽  
E. S. Roesti ◽  
Aadil El-Turabi ◽  
Martin F. Bachmann

Nucleic acid packed within virus-like particles (VLPs) is shown to shape the immune response and to induce stronger B cell responses in different immunisation models. Here, using a VLP displaying the highly conserved extracellular domain of the M2 protein (M2e) from the influenza viruses as an antigen, we demonstrate that the type of RNA packaged into VLPs can alter the quality of the induced humoral response. By comparing prokaryotic RNA (pRNA), eukaryotic RNA (eRNA) and transfer RNA (tRNA), we find that pRNA induces the most protective IgG subclasses using a murine influenza model. We provide evidence that this process is predominantly dependent on endosomal Toll-like receptor (TLR7), and rule out a role for cytoplasmic mitochondrial antiviral signalling protein (MAVS) and its upstream retinoic acid-inducible gene-I-like receptors (RIG-I). Our findings provide considerations for the rational design of VLP-based vaccines and the immunomodulation exerted by TLR7 ligands packaged within the particles. Based on this work, we conclude that VLPs packing prokaryotic RNA must be preferred whenever a response dominated by IgG2 is desired, while eukaryotic RNA should be employed in order to induce a response dominated by IgG1.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 17035-17035
Author(s):  
P. W. Cobb ◽  
M. Kofstad ◽  
C. Bealer

17035 Background: Recent advances in information technology have made the goal of incorporating patient-reported symptoms possible. Initial studies have examined the validity of these systems but no systematic work has been done to examine the impact on overall practice efficiency. The PACE (Patient Assessment, Care, and Education) System captures patient-reported symptoms, quality of life, social and family history changes, and other clinical data at every office visit. The PACE System includes the Patient Care Monitor (PCM), a standardized, comprehensive assessment of a patient's condition that allows for a self-reported review of systems (ROS) via a wireless, touch screen computer tablet. The purpose of this study was to determine if implementation of the PCM had an impact on total transcription length. Methods: The study utilized a retrospective within subjects control design comparing transcription length by physicians practicing both with and without the PCM. The PACE System was implemented in October 2004 in a main outpatient oncology site in Billings, MT (PACE site). The analysis compared transcription length by physicians who practice in the Billings office where the PACE system was available, and also in four sites in Montana and Wyoming where the PACE system was not available during the same time period (January to October 2006). All available, consecutive physician notes were analyzed from eligible physicians during the analysis period. Results: Four physicians met inclusion criteria and 8,150 notes were analyzed. The average number of dictation words at PCM sites was 406.7 as compared to 485.5 at non- PCM sites (a 16% reduction). The average number of dictation lines at the PCM sites was 54.0 as compared to 58.5 at non-PCM sites (an 8% reduction). Conclusions: Increases in the use of information technology in outpatient oncology necessitate increased understanding of the validity and utility of these systems. This study of the PACE system suggests that there may be an efficiency benefit by implementing patient self-reporting systems. No significant financial relationships to disclose.


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