scholarly journals Soundproofing presses by placing its nodes in a soundproof casing, including drive components

2020 ◽  
Vol 164 ◽  
pp. 01027
Author(s):  
Sergei Pushenko ◽  
Evgeny Bozhko ◽  
Irina Zolotuhina
Keyword(s):  
High Temperature ◽  
Environmental Factors ◽  
Functional State ◽  
Human Body ◽  
Impulse Noise ◽  
Prolonged Exposure ◽  
The Body ◽  
Internal Organs ◽  
Economic Significance ◽  
Temperature Manipulation

Noise is one of the most unfavorable environmental factors in production facilities, for which it is most difficult to achieve compliance with sanitary standards. Prolonged exposure to intense vibrations and noise leads to noise and vibration diseases. The effect of noise on the human body is not limited to exposure to the organ of hearing. Irritation by noise is transmitted to the central and autonomic nervous systems, through them acts on the internal organs, leading to significant changes in the functional state of the organism. With pulsed and irregular noise, the degree of impact of noise on the body of workers increases. Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.

scholarly journals Methods for reducing vibrations generated by shock equipment

2020 ◽  
Vol 164 ◽  
pp. 01026
Author(s):  
Sergei Pushenko ◽  
Evgeny Bozhko ◽  
Irina Zolotuhina
Keyword(s):  
High Temperature ◽  
Environmental Factors ◽  
Functional State ◽  
Human Body ◽  
Impulse Noise ◽  
Prolonged Exposure ◽  
The Body ◽  
Internal Organs ◽  
Economic Significance ◽  
Temperature Manipulation

Noise is one of the most unfavorable environmental factors in production facilities, for which it is most difficult to achieve compliance with sanitary standards. Prolonged exposure to intense vibrations and noise leads to noise and vibration diseases. The effect of noise on the human body is not limited to exposure to the organ of hearing. Irritation by noise is transmitted to the central and autonomic nervous systems, through them acts on the internal organs, leading to significant changes in the functional state of the organism. With pulsed and irregular noise, the degree of impact of noise on the body of workers increases. Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.

scholarly journals Theoretical studies on the calculation of the noise of impact equipment in blacksmith shops

2020 ◽  
Vol 164 ◽  
pp. 01030 ◽  
Author(s):  
Elena Staseva ◽  
Dmitry Larin ◽  
Sergei Demchenko ◽  
Kirill Kobzev
Keyword(s):  
High Temperature ◽  
Noise Reduction ◽  
Impulse Noise ◽  
Theoretical Studies ◽  
Economic Significance ◽  
Temperature Manipulation

Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.

scholarly journals PHYSIOLOGICAL AND PATHOPHYSIOLOGICAL CHANGES IN CHERNOBYL LIQUIDATORS LIVING IN HIGH ALTITUDE CONDITIONS

2019 ◽  
Vol 9 (1) ◽  
pp. 47-51
Author(s):  
Gayane Khachatryan ◽  
Anahit Karapetyan
Keyword(s):  
Environmental Factors ◽  
Solar Radiation ◽  
Human Body ◽  
Atmospheric Pressure ◽  
Prolonged Exposure ◽  
Climatic Factors ◽  
The Body ◽  
High Mountains ◽  
Air Ionization ◽  
The Given

It is known that the human body living in conditions of high mountains is under the constant exposure of the environmental factors, and, in case of prolonged exposure, these factors affect the physiological functions of the body, which in many cases leads to adaptation to the given conditions. Climatic factors, such as reduced atmospheric pressure, reduced oxygen partial pressure, temperature, humidity, high intensity of solar radiation, air ionization and other factors, affect the human body through the skin, lungs, sensory organs, causing different physiological shifts. The aim of the presented study has been to reveal the differences in morbidity, changes in the functional status of different organs and systems in liquidators living on the plains compared with the residents of the highland regions of Armenia.

scholarly journals The adaptive potential of workers in greenhouse farms in the Voronezh region

2021 ◽  
Author(s):  
L.A. Yatsenko ◽  
N.V. Dzen ◽  
N.V. Gabbasova ◽  
N.P. Mamchik
Keyword(s):  
Environmental Factors ◽  
Chronic Diseases ◽  
Human Body ◽  
The Body ◽  
External Factors ◽  
Adaptive Potential ◽  
Production Factors ◽  
Adaptive Capabilities ◽  
Voronezh Region ◽  
Integral Indicator

Adaptive potential is an indicator of the level of adaptability of the human body to various and changing environmental factors. The adaptive capabilities of the body are influenced not only by external factors, but also by internal - the state of the body as a whole, by the presence or absence of chronic diseases. Therefore, the adaptive potential was used as an integral indicator of a person's adaptability to production factors. The aim of the study was to assess the adaptive capabilities of the organism of workers in greenhouse farms in the Voronezh region. The study was carried out at the enterprises of the closed ground of the region by the method of questioning, the objects of the study were 125 women aged 27-45 years. In most cases, there are violations of the adaptive capabilities of the organism among the studied workers of greenhouse farms, and even a breakdown in adaptation was revealed in 0.8%. In less than half of the cases, the adaptive potential of the greenhouses was within the normal. The adaptive reserves of the greenhouses workers decrease with age.

scholarly journals Wavelet introscopy of human organism bionets

2021 ◽  
pp. 63-72
Author(s):  
Gennady M. Aldonin ◽  
◽  
Vasily V. Cherepanov ◽  
Keyword(s):  
Functional State ◽  
Human Body ◽  
Dynamic Models ◽  
Golden Ratio ◽  
The State ◽  
The Body ◽  
Human Organism ◽  
Fractal Structures ◽  
Self Similar ◽  
The Creation

In domestic and foreign practice, a great deal of experience has been accumulated in the creation of means for monitoring the functional state of the human body. The existing complexes mainly analyze the electrocardiogram, blood pressure and a number of other physiological parameters. Diagnostics is often based on formal statistical data which are not always correct due to the nonstationarity of bioprocesses and without taking into account their physical nature. An urgent task of monitoring the state of the cardiovascular system is the creation of effective algorithms for computer technologies to process biosignals based on nonlinear dynamic models of body systems since biosystems and bioprocesses have a nonlinear nature and fractal structure. The nervous and muscular systems of the heart, the vascular and bronchial systems of the human body are examples of such structures. The connection of body systems with their organization in the form of self-similar fractal structures with scaling close to the “golden ratio” makes it possible to diagnose them topically. It is possible to obtain detailed information about the state of the human body’s bio-networks for topical diagnostics on the basis of the wavelet analysis of biosignals (the so-called wavelet-introscopy). With the help of wavelet transform, it is possible to reveal the structure of biosystems and bioprocesses, as a picture of the lines of local extrema of wavelet diagrams of biosignals. Mathematical models and software for wavelet introscopy make it possible to extract additional information from biosignals about the state of biosystems. Early detection of latent forms of diseases using wavelet introscopy can shorten the cure time and reduce the consequences of disorders of the functional state of the body (FSO), and reduce the risk of disability. Taking into account the factors of organizing the body’s biosystems in the form of self-similar fractal structures with a scaling close to the “golden ratio” makes it possible to create a technique for topical diagnostics of the most important biosystems of the human body.

scholarly journals Influence of modern sound environment on the functional state of the human body

2019 ◽  
Vol 95 (2) ◽  
pp. 150-153
Author(s):  
D. A. Dmitriev ◽  
Olga S. Indeykina ◽  
A. D. Dmitriev
Keyword(s):  
Functional State ◽  
Human Body ◽  
The Body ◽  
Noise Sensitivity ◽  
Subjective Perception ◽  
Sensory Stimuli ◽  
Factors Affecting ◽  
Functional Systems ◽  
Sound Environment

Sound environment is an essential sensory stimuli influencing on the all functional systems of the body. The nature of this influence depends not only on the volume, but also on the whole complex of factors affecting the subjective perception of sound. The article describes the effect of different noise and music stimuli on health and functional state of the human body, the importance of noise sensitivity due to the severity of the composition offunctional changes.

scholarly journals El Cuerpo como Fábrica y el Cirujano como su Arquitecto / The Body as a Factory and the Surgeon as its Architect

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Cristóbal Pera
Keyword(s):  
Foreign Body ◽  
Human Body ◽  
El Paso ◽  
The Body ◽  
Body Parts ◽  
Expiration Date ◽  
Internal Organs ◽  
The Subject ◽  
The Way

ABSTRACTIf the human body is really a fabric, should surgeons be considered architects, as some surgeons describe themselves today? The author raises and analyzes this question, and he concludes that vsurgeons cannot be considered as such: the architect is the creator of his work —fabric or building—, but the surgeon is not the creator of this complex biological fabric —vulnerable and subject to deterioration and with an expiration date— which is the human body. This body is the object upon which his hands and instruments operate. The surgeon cures and heals wounds, immobilizes and aligns fractured bones in order to facilitate their good and timely repair, and cuts open the body’s surface in order to reach its internal organs. He also explores the body with his hands or instruments, destroys and reconstructs its ailing parts, substitutes vital organs taken from a donor’s foreign body, designs devices or prostheses, and replaces body parts, such as arteries and joints, that are damaged or worn out. In today’s culture, dominated by the desire to perfect the body, other surgeons keep retouching its aging façade, looking for an iconic and timeless beauty. This longing can drive, sometimes, to surgical madness. The surgeon is not capable of putting into motion, from scratch, a biological fabric such as the human body. Thus, he can’t create the subject of his work in the way that an architect can create a building. In contrast, the surgeon restores the body’s deteriorated or damaged parts and modifies the appearance of the body’s façade.RESUMEN¿Si el cuerpo humano fuera realmente una fábrica, podría el cirujano ser considerado su arquitecto, como algunos se pregonan en estos tiempos? Esta es la cuestión planteada por el autor y, a tenor de lo discurrido, su respuesta es negativa: porque así como el arquitecto es el artífice de su obra —fábrica o edificio— el cirujano no es el artífice de la complejísima fábrica biológica —vulnerable, deteriorable y caducable— que es el cuerpo humano, la cual le es dada como objeto de las acciones de sus manos y de sus instrumentos. El cirujano cura y restaña sus heridas, alinea e inmoviliza sus huesos fracturados para que su reparación llegue a buen término, penetra por sus orificios naturales o dibuja sobre la superficie corporal incisiones que le permitan llegar a sus entrañas, las explora con sus manos o mediante instrumentos, destruye y reconstruye sus partes enfermas, sustituye órganos vitales que no le ayudan a vivir por los extraídos de cuerpos donantes, y concibe, diseña y hace fabricar artefactos o prótesis, como recambio fragmentos corporales deteriorados o desgastados, como arterias o articulaciones. Otros cirujanos, en la predominante cultura de la modificación del cuerpo, retocan una y otra vez su fachada envejecida ineludiblemente por el paso del tiempo, empeñados en la búsqueda incesante de una belleza icónica y mediática e intemporal, una pretensión que puede conducir, y a veces conduce, al desvarío quirúrgico. En definitiva, el cirujano es incapaz de poner de pie, ex novo, una fábrica biológica como la del cuerpo humano y, por lo tanto, no puede ser su artífice, como lo es el arquitecto de su edificio. A lo sumo, es el restaurador de sus entrañas deterioradas y el modificador de su fachada, de su apariencia.

Physiological Ecology of Patella Iv. Environmental and Limpet Body Temperatures

1970 ◽  
Vol 50 (4) ◽  
pp. 1069-1077 ◽  
Author(s):  
P. Spencer Davies
Keyword(s):  
High Temperature ◽  
Environmental Factors ◽  
Sea Water ◽  
Rapid Change ◽  
Radiant Energy ◽  
Point Of View ◽  
The Body ◽  
Body Temperatures ◽  
Terrestrial Environment ◽  
Air Temperatures

When littoral animals are exposed by the receding tide they are subjected to the environmental factors of what is essentially a terrestrial environment. Of these factors desiccation (see Davies, 1969) and temperature are of paramount importance. In winter the animals may be subject to a rapid change from the relatively high temperature of the sea to a very much lower air temperature. In summertime the opposite is true and the animals will spend the dry phase in air temperatures often far in excess of sea-water temperatures. The most important temperatures from an ecological point of view, however, are the body temperatures of the animals themselves. As shown by Southward (1958) this cannot be deduced from measurements of air temperatures, since the animals are subject to heating by absorption of solar radiant energy and this in turn may be mitigated by other environmental factors.

scholarly journals Influence of different types of loads on the cardiovascular and muscular systems in the process of physical education classes in the department of athletic gymnastics

2021 ◽  
pp. 128-132
Author(s):  
Svitlana Тymchik ◽  
Оleksandr Bryksin ◽  
Eugenia Omelyanchuk
Keyword(s):  
Physical Education ◽  
Musculoskeletal System ◽  
Human Body ◽  
Environmental Influences ◽  
Physical Activities ◽  
The Body ◽  
Physical Work ◽  
Strong Increase ◽  
Regular Exercise ◽  
Internal Organs

In the modern world with the advent of devices that facilitate work (computer, technical equipment) has decreased sharply motor activity of people compared to previous decades. This, in the end, leads to a decrease in human functionality, as well as various diseases. Today, purely physical work does not play a significant role, it is replaced by mental. Intellectual work dramatically reduces the efficiency of the body. Lack of human energy expenditure leads to inconsistencies in the functioning of individual systems (muscular, skeletal, respiratory, cardiovascular) and the body as a whole with the environment, as well as reduced immunity and impaired metabolism. Exercise affects all muscle groups, joints, ligaments, which become strong, increase muscle volume, elasticity, strength and rate of contraction. Increased muscle activity forces the heart, lungs and other organs and systems of our body to work with additional load, thereby increasing the functional capabilities of man, his resistance to adverse environmental influences. Regular exercise primarily affects the musculoskeletal system, muscles. When you exercise, the muscles generate heat, to which the body responds by increased sweating. During exercise, blood flow increases: the blood brings oxygen and nutrients to the muscles, which in the process of life break down, releasing energy. When movements in the muscles additionally open reserve capillaries, the amount of circulating blood increases significantly, which causes an improvement in metabolism. In response to the reaction of the human body to exercise, the first place is occupied by the influence of the cerebral cortex on the regulation of the functions of the basic systems: there is a change in the cardiorespiratory system, gas exchange, metabolism, and others. Exercises enhance the functional restructuring of all parts of the musculoskeletal system, cardiovascular and other systems, improve tissue metabolism. Under the influence of moderate physical activity increases the efficiency of the heart, hemoglobin and red blood cell count, increases the phagocytic function of the blood. Improves the function and structure of the internal organs, improves chemical processing and promotion of food in the intestine. The combined activity of muscles and internal organs is regulated by the nervous system, the function of which is also improved by regular exercise. If the muscles do not work - their nutrition deteriorates, volume and strength decrease, elasticity and resilience decrease, they become weak, sluggish. Restrictions in movement (hypodynamia), passive lifestyle lead to various pre-pathological and pathological changes in the human body. So, the American doctors, having deprived volunteers of movements by imposing of high plaster and having kept to them a normal diet, were convinced that in 40 days at them muscle atrophy began and fat has accumulated. At the same time increased the reactivity of the cardiovascular system and decreased basal metabolism. However, during the next 4 weeks, when the subjects began to move actively (with the same diet), the above phenomena were eliminated, the muscles were strengthened and hypertrophied. Thus, due to physical exertion, recovery was possible both in functional and structural terms. Exercise has a multifaceted effect on the human body, increasing its resistance to adverse environmental influences. For example, physically trained people have better tolerance to oxygen starvation than untrained people. High ability to work at increase of body temperature over 38 ° C during physical exertions is noted. It has been noticed that radiologists who exercise have a lower degree of influence of penetrating radiation on the morphological composition of the blood. Animal experiments have shown that regular muscle training slows the development of malignant tumors. Regular exercise in physical education promotes good health and affects the various physiological adaptations of the neuromuscular, cardiovascular and respiratory systems of the human body. Types of physical activities are considered: aerobic, anaerobic, interval and hypoxic physical activities.

scholarly journals Temperature of representative areas of the breast department of the vegetative nervous system as the index of human organism functional state

2017 ◽  
Vol 23 (2) ◽  
pp. 27-33
Author(s):  
S. Goncharevskyi ◽  
M. Makarchuk ◽  
V. Martynyuk
Keyword(s):  
Myocardial Infarction ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Functional State ◽  
Human Body ◽  
The Body ◽  
Human Organism ◽  
Autonomic Nervous ◽  
Significant Difference ◽  
The Right

Almost all processes in the human body in one way or another connected with the autonomic nervous system. That's why it is real to evaluate the functional state of the person by temperature characteristics of representative points of the autonomic nervous system. Location and information of these points are confirmed by fundamental research. However, simply measuring the temperature at some points may not be sufficient to establish any systematic changes in the human body. The establishment of such changes requires systematic assessment of interdependent significant relationships between these parameters.The main aim of our research was to study effects of myocardial infarction in the thoracic region of the autonomic nervous system. The temperature of representative areas of the thoracic autonomic nervous system we measured by infrared thermometer (Medisana FTO D-53340 , with an accuracy of 0.1 degree Celsius). Statistical analysis was conducted in the packet Statistics 10. The presence of a difference in the temperature coefficients of representative areas (p<0,05). For the left side of the spine characterized by a difference in Th1–Th5 segments, which confirms their diagnosis: Th1 – 0,931,12 (control) and -0,797,49 (experiment), Th2 – 1,571,12 and -0,486,70, Th3 – 1,582611,12325 and -0,663,36, Th4 – 0,85913 0,92611 and -1,74,64, Th5 – 0,923480,75469 and-1,615,73 respectively. For the right side of the thoracic spines: Th6 – 0,850,73 (control) and -0,797,49 (experiment), Th7 – -1,000,79 and -1,370,69, Th8 – -0,960,73 and -0,990,68, Th9 – -0,120,64 and -0,380,83, Th10 – -0,921,14 and -1,031,00, Th11 – -1,691,05 and -1,861,06, Th12- -1,651,15 and -1,961,12 respectively. We found that myocardial infarction is manifested in the thoracic spine. In an experimental group there is significant difference of temperature in all segments. We can also notice asymmetry of temperatue between the right and left side of the spine. In the test group there are a deviation from the normal temperature in the first five thoracic segments on the left side, which confirms their diagnosis. On the right side of the spine there are a deviation in the last seven segments, which may indicate the compensatory mechanisms of regulation of the system. We can observe the temperature asymmetry, which in long-term exposure can negatively affect to the body.

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