scholarly journals CURRENT STATE OF SCIENTIFIC AND TECHNICAL DEVELOPMENTS IN THE FIELD OF IMPROVING THE EFFICIENCY OF VIBRATION EQUIPMENT AND TECHNOLOGIES

2021 ◽  
pp. 75-90
Author(s):  
Igor Tverdokhlib ◽  
Oleg Omelyanov
Keyword(s):  
Scientific Basis ◽  
Dynamic State ◽  
Computer Engineering ◽  
Dynamic Interactions ◽  
High Productivity ◽  
Shock Interactions ◽  
Technical Developments ◽  
Automatic Control Theory ◽  
Scientific Potential ◽  
Control And Management

The article considers the state of scientific and technical developments in the field of improving the efficiency of vibration technology. Production activity in most branches of industrial production is provided by the work of various technological machines and vehicles. The operation of machines, equipment, mechanisms, apparatus and devices in the conditions of the need to ensure high productivity is often accompanied by significant dynamic loads, vibration processes and manifestations of shock interactions of machine elements. Ensuring the reliability and safety of machines requires at all stages of their life cycle serious attention to compliance with certain restrictions on the parameters of the dynamic state of technical objects, the development of methods and means of assessing control and management of dynamic interactions. Modern mechanical engineering is a scientific basis for solving the main problems of machine dynamics, which, in general, is based on scientific potential created by domestic and foreign scientists in the field of theoretical and applied mechanics, theory of mechanisms, dynamics and strength of machines, development of scientific directions in automatic control theory. applied system synthesis, etc. The results of scientific research are reflected in the works of famous scientists. The formed practice of pre-design researches of the created machines, the equipment and the equipment is based on wide use of means of mathematical modeling, application of means of computer engineering. The choice of equipment in production is based on cost, productivity, size, energy consumption, etc. In this regard, there is a question of the need to find and develop new approaches, methods and means to ensure the efficiency and reliability of technological machines and equipment.

Science of Ahangyol and Its Importance for Modern Scientific Thought

2019 ◽  
Vol 10 (5) ◽  
pp. 473-478
Author(s):  
Ahmad Gashamoglu ◽  
Keyword(s):  
Modern Science ◽  
Scientific Basis ◽  
New Paradigm ◽  
Islamic Philosophy ◽  
Scientific Thought ◽  
Religious Books ◽  
Strategic Approach ◽  
Scientific Potential ◽  
Made In

The Article briefly discusses the need for generation of the Science of Ahangyol, and this science’s scientific basis, object and subject, category system, scientific research methods and application options. Ahangyol is a universal science and may be useful in any sphere. It may assist in problem solving in peacemaking process and in many areas such as ecology, economics, politics, culture, management and etc. This science stipulates that any activity and any decision made in the life may only and solely be successful when they comply with harmony principles more, which are the principles of existence and activity of the world. A right strategic approach of the Eastern Philosophy and the Middle Age Islamic Philosophy and scientific thought has an important potential. This strategic approach creates opportunities to also consider irrational factors in addition to rational ones comprehensively in scientific researches. The modern scientific thought contributes to implementation of these opportunities. Ahangyol is a science of determination of ways to achieve harmony in any sphere and of creation of special methods to make progress in these ways through assistance of the modern science. Methods of the System Theory, Mathematics, IT, Astronomy, Physics, Biology, Sociology, Statistics and etc. are more extensively applied. Information is given on some of these methods. Moreover, the Science of Ahangyol, which is a new philosophical worldview and a new paradigm contributes to clarification of metaphysic views considerably and discovery of the scientific potential of religious books.

The Design of Automatic Control System for Greenhouse Based on Microcontroller

2013 ◽  
Vol 446-447 ◽  
pp. 1188-1192
Author(s):  
Xin Yu Sun
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Performance Test ◽  
Scientific Basis ◽  
Automatic Control Theory ◽  
Output Efficiency ◽  
Automation Control ◽  
New Situation ◽  
Greenhouse Control ◽  
High Output

Recently, with the rapid agricultural application progress in China, greenhouse control issues have been better addressed. The greenhouse control technology, as an emerging technology, is increasingly being widespread attended, and is gradually walking in the direction of constructing good quality, high output efficiency agricultural systems. In this new situation, we need to carry out market research, carefully research the greenhouse automatic control theory based on SCM technology, and design automation control system with best effect. The performance test result shows: This new system has a good usable performance, while related technology can provide a scientific basis for further research in the future. Keywords.Microcontroller; greenhouse automatic control.

“It/I”: A Theater Play Featuring an Autonomous Computer Character

2002 ◽  
Vol 11 (5) ◽  
pp. 536-548 ◽  
Author(s):  
Claudio S. Pinhanez ◽  
Aaron F. Bobick
Keyword(s):  
Virtual Environment ◽  
Temporal Structure ◽  
Automatic Computer ◽  
Interactive Spaces ◽  
Technical Developments ◽  
Computer Controlled ◽  
Control And Management ◽  
First Time ◽  
Successful Production

“It/I” is a two-character theater play in which the human character I (played by a real actor) is taunted and played with by an autonomous computer character It on a computer-controlled, camera-monitored stage. The play, performed before live audiences in November 1997, brought an automatic computer character to a theatrical stage for the first time ever. This paper reports the experience and examines important technical developments needed for the successful production of “It/I”. In particular we describe the interval script paradigm used to program the computer character and the ACTSCRIPT language for communication of actions and goals. Although our experiments have been restricted to physical interactive spaces, we believe that interval scripts and ACTSCRIPT can successfully address the control and management of any virtual environment with a complex temporal structure or a strong underlying narrative.

scholarly journals The liver metastatic niche: modelling the extracellular matrix in metastasis

2021 ◽  
Vol 14 (4) ◽  
Author(s):  
James Drew ◽  
Laura M. Machesky
Keyword(s):  
Extracellular Matrix ◽  
Cancer Cells ◽  
Cancer Progression ◽  
Stochastic Dynamic ◽  
Niche Modelling ◽  
Dynamic Interactions ◽  
Liver Support ◽  
Technical Developments ◽  
The Matrix ◽  
Metastatic Sites

ABSTRACT Dissemination of malignant cells from primary tumours to metastatic sites is a key step in cancer progression. Disseminated tumour cells preferentially settle in specific target organs, and the success of such metastases depends on dynamic interactions between cancer cells and the microenvironments they encounter at secondary sites. Two emerging concepts concerning the biology of metastasis are that organ-specific microenvironments influence the fate of disseminated cancer cells, and that cancer cell-extracellular matrix interactions have important roles at all stages of the metastatic cascade. The extracellular matrix is the complex and dynamic non-cellular component of tissues that provides a physical scaffold and conveys essential adhesive and paracrine signals for a tissue's function. Here, we focus on how extracellular matrix dynamics contribute to liver metastases – a common and deadly event. We discuss how matrix components of the healthy and premetastatic liver support early seeding of disseminated cancer cells, and how the matrix derived from both cancer and liver contributes to the changes in niche composition as metastasis progresses. We also highlight the technical developments that are providing new insights into the stochastic, dynamic and multifaceted roles of the liver extracellular matrix in permitting and sustaining metastasis. An understanding of the contribution of the extracellular matrix to different stages of metastasis may well pave the way to targeted and effective therapies against metastatic disease.

scholarly journals Anthropogenic Impact on Nature in the Plains Along the Aras in the Nakhchivan

2020 ◽  
Vol 7 (9) ◽  
pp. 79-86
Author(s):  
E. Seiidova
Keyword(s):  
Cultural Landscapes ◽  
Scientific Basis ◽  
Anthropogenic Factors ◽  
Nature Protection ◽  
Anthropogenic Landscapes ◽  
Factors Affecting ◽  
High Productivity ◽  
Recreation Areas ◽  
Longitudinal Zone ◽  
Autonomous Republic

The article examines the changes that have taken place in the Nakhchivan by characterizing the anthropogenic factors affecting the natural landscape structures. In recent years, the anthropogenic dynamics of natural landscapes have accelerated by rapid population growth and the expansion of private farms. Also, the concept of nature protection and its efficient use makes the concept of landscape development (evolution) even more relevant. Anthropogenic, especially technogenic impacts on nature are manifested in both positive and negative forms in the longitudinal zone covering 32.9% of the territory of the Autonomous Republic. According to the dynamics of anthropogenic landscapes in the area can be classified as weakly altered, disturbed or strongly altered and special cultural landscapes. We have also explored cultural landscapes as follows: 1. For high productivity and economic income; 2. According to human health and the optimality of the ecological environment; The first group includes areas covering the main agricultural crops of the Autonomous Republic, and the second group includes green areas, parks, recreation areas and infrastructure serving the health of the population etc. that have been expanding in recent years. The article also discusses environmental problems in the field of anthropogenic complexes, reproductive modifications and their solutions. In the end, the causes of anthropogenization, the problems encountered the analysis of them in accordance with the physical and geographical conditions, the ways to solve them on a scientific basis, a number of recommendations and suggestions were made.

scholarly journals Multi-spatial scale dynamic interactions between functional sources reveal sex-specific changes in schizophrenia

2021 ◽  
pp. 1-48
Author(s):  
A. Iraji ◽  
A. Faghiri ◽  
Z. Fu ◽  
S. Rachakonda ◽  
P. Kochunov ◽  
...  
Keyword(s):  
Spatial Scale ◽  
Spatial Scales ◽  
Dynamic State ◽  
Model Order Selection ◽  
Dynamic Interactions ◽  
Model Order ◽  
Functional Interactions ◽  
Multiple Spatial Scales ◽  
Temporal Domain ◽  
The Brain

Abstract We introduce an extension of independent component analysis (ICA), called multiscale ICA (msICA), and design an approach to capture dynamic functional source interactions within and between multiple spatial scales. msICA estimates functional sources at multiple spatial scales without imposing direct constraints on the size of functional sources, overcomes the limitation of using fixed anatomical locations, and eliminates the need for model-order selection in ICA analysis. We leveraged this approach to study sex-specific and -common connectivity patterns in schizophrenia. Results show dynamic reconfiguration and interaction within and between multi-spatial scales. Sex specific differences occur (1) within the subcortical domain, (2) between the somatomotor and cerebellum domains, and (3) between the temporal domain and several others, including the subcortical, visual, and default mode domains. Most of the sex-specific differences belong to between-spatial scale functional interactions and are associated with a dynamic state with strong functional interactions between the visual, somatomotor, and temporal domains and their anticorrelation patterns with the rest of the brain. We observed significant correlations between multi-spatial scale functional interactions and symptom scores,highlighting the importance of multiscale analyses to identify potential biomarkers for schizophrenia. As such, we recommend such analyses as an important option for future functional connectivity studies.

scholarly journals Multi-Spatial Scale Dynamic Interactions between Functional Sources Reveal Sex-Specific Changes in Schizophrenia

2021 ◽  
Author(s):  
A. Iraji ◽  
A. Faghiri ◽  
Z. Fu ◽  
S. Rachakonda ◽  
P. Kochunov ◽  
...  
Keyword(s):  
Spatial Scale ◽  
Spatial Scales ◽  
Dynamic State ◽  
Model Order Selection ◽  
Dynamic Interactions ◽  
Model Order ◽  
Functional Interactions ◽  
Multiple Spatial Scales ◽  
Temporal Domain ◽  
The Brain

AbstractWe introduce an extension of independent component analysis (ICA), called multiscale ICA (msICA), and design an approach to capture dynamic functional source interactions within and between multiple spatial scales. msICA estimates functional sources at multiple spatial scales without imposing direct constraints on the size of functional sources, overcomes the limitation of using fixed anatomical locations, and eliminates the need for model-order selection in ICA analysis. We leveraged this approach to study sex-specific and -common connectivity patterns in schizophrenia.Results show dynamic reconfiguration and interaction within and between multi-spatial scales. Sex-specific differences occur (1) within the subcortical domain, (2) between the somatomotor and cerebellum domains, and (3) between the temporal domain and several others, including the subcortical, visual, and default mode domains. Most of the sex-specific differences belong to between-spatial scale functional interactions and are associated with a dynamic state with strong functional interactions between the visual, somatomotor, and temporal domains and their anticorrelation patterns with the rest of the brain. We observed significant correlations between multi-spatial-scale functional interactions and symptom scores, highlighting the importance of multiscale analyses to identify potential biomarkers for schizophrenia. As such, we recommend such analyses as an important option for future functional connectivity studies.

scholarly journals The current state of development of science in Ukraine and its impact on patent and innovation activity

2019 ◽  
pp. 31-41
Author(s):  
V.V. Korskanov ◽  
O.M. Fesenko ◽  
P.P. Pogoretskiy ◽  
O.P. Budnik ◽  
V.B. Dolgoshey
Keyword(s):  
Innovation Activity ◽  
Material Base ◽  
Scientific Publications ◽  
Technical Developments ◽  
Current State ◽  
Research Institutes ◽  
The World ◽  
Innovative Products ◽  
Scientific Potential ◽  
The Usa

Today, Ukraine has retained a fairly strong scientific potential. However, the level of patent and innovation activity in Ukraine is low, because the state provides for a small percentage of the gross domestic product (GDP) that goes to finance research. In recent years, the number of research works and staff of research institutes has been shrinking rapidly due to chronic underfunding and outdated experimental research equipment. For the same reason, the citation index of works of Ukrainian scientists is low. The weak material base of the Ukrainian research institutes stipulates that the ratio of experimental to theoretical scientific and technical developments has been decreasing in recent years. Most patents are registered by Ukrainian scientists in Ukraine - in Ukrpatent. The majority of international patents are granted to Ukrainians in the USA, Germany and Switzerland. Against the background of the integration of Ukrainian scientists into the world community, there is a significant increase in the number of joint scientific publications of Ukrainian scientists with foreign colleagues. In recent years, the world has seen a rapid increase in patents on nanotechnology in the most technologically advanced countries in the world. The patent and innovation activity in Ukraine is expected to grow rapidly in the near future. The main goal is to ensure rapid and qualitative transformation of creative ideas into innovative products and services that increase the level of innovation of the national economy.

Preparatory Procedures for Electron Microscopic Analysis at the Molecular Level of Resolution

1978 ◽  
Vol 36 (3) ◽  
pp. 516-520
Author(s):  
F.J. Sjostrand
Keyword(s):  
Electron Microscope ◽  
Molecular Level ◽  
Microscopic Analysis ◽  
Resolving Power ◽  
Cellular Structures ◽  
Electron Microscopic ◽  
Systematic Analysis ◽  
Technical Developments ◽  
Thin Sectioning ◽  
Obvious Reason

In the 1940's and 1950's electron microscopy conferences were attended with everybody interested in learning about the latest technical developments for one very obvious reason. There was the electron microscope with its outstanding performance but nobody could make very much use of it because we were lacking proper techniques to prepare biological specimens. The development of the thin sectioning technique with its perfectioning in 1952 changed the situation and systematic analysis of the structure of cells could now be pursued. Since then electron microscopists have in general become satisfied with the level of resolution at which cellular structures can be analyzed when applying this technique. There has been little interest in trying to push the limit of resolution closer to that determined by the resolving power of the electron microscope.

Pinocytotic-Like Forms of Mitochondria From Rat Anterior Pituitary

1968 ◽  
Vol 26 ◽  
pp. 146-147
Author(s):  
Burton B. Silver
Keyword(s):  
Electron Micrographs ◽  
Conformational Changes ◽  
Anterior Pituitary ◽  
Dynamic State ◽  
Surrounding Cell ◽  
The Matrix ◽  
The Moment ◽  
Cell Medium ◽  
Sectioned Tissue ◽  
State Of Activity

Sectioned tissue rarely indicates evidence of what is probably a highly dynamic state of activity in mitochondria which have been reported to undergo a variety of movements such as streaming, divisions and coalescence. Recently, mitochondria from the rat anterior pituitary have been fixed in a variety of configurations which suggest that conformational changes were occurring at the moment of fixation. Pinocytotic-like vacuoles which may be taking in or expelling materials from the surrounding cell medium, appear to be forming in some of the mitochondria. In some cases, pores extend into the matrix of the mitochondria. In other forms, the remains of what seems to be pinched off vacuoles are evident in the mitochondrial interior. Dense materials, resembling secretory droplets, appear at the junction of the pores and the cytoplasm. The droplets are similar to the secretory materials commonly identified in electron micrographs of the anterior pituitary.

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