scholarly journals The characteristics of vibration disease of miners in conditions of modern technologies of mining ore raw materials in the Kola High North

2019 ◽  
Vol 60 (6) ◽  
pp. 312-316
Author(s):  
Sergey A. Syurin ◽  
V. V. Shilov

The study was carried out to analyze characteristics of development of vibration disease in miners of mineral resources' industry enterprises of the Kola High North in 1989-2013. Altogether, in miners of 16 professions 509 cases of primarily diagnosed vibration disease were established that amounted to 22.5% of all cases of occupational diseases. The vibration disease ranked second place in the structure of occupational pathology after diseases of musculo-skeletal system. During the analyzed period, the following characteristics of vibration pathology were established: 1. significant increasing of prevalence of vibration disease (especially in 2004-2013); 2. increasing among patients with vibration disease number of workers mainly involved into loading delivering operations (from 19,3% to 62,6%) and decreasing of percentage of workers involved into sinking and drilling operations; 3. increasing up to 11.1 years of duration of labor experience until moment of primary detection of vibration disease; 4. increasing from 7,7% to 69,5% of percentage of expressed clinical forms of vibration disease (vibration disease stage II) and decreasing of percentage of vibration disease with initial clinical manifestations of vibration disease (vibration disease stage I) among primarily diagnosed cases. Therefore, implementation of modern mining engineering with decreased levels of vibration and application of modern techniques of early diagnostic and prevention of vibration pathology and also organizational activities targeted to decreasing of level of impact of hazardous industrial factors resulted in no decreasing of risk of development of vibration disease in miners of mineral resources' industry enterprises of the Kola High North. The obtained data testify that statistical indices ofprevalence and severity of vibration pathology depend on interaction of many differently directed factors. Among these factors are labor conditions, level of medical preventive activities, quality of medical examinations and expertise decisions concerning relationship between health disorders and labor conditions, motivation to continue labor activity, etc.

Author(s):  
E.E. Konnikova ◽  
◽  
A.G. Popova ◽  
N.I. Slugrov ◽  

Abstract: A statistical analysis of stabilometric study results of 50 male patients with vibration disease (VD) from the effects of general vibration (GV) (average work experience 26,7±6,2) has been carried out. The control group (CG) included 50 men who have not been exposed to the general vibration. The compared groups were comparable by age: the average age of patients with vibration disease was 56.34+5.15, patients of the control group-58.22+-7.05. The study of the support symmetry and equilibrium function was carried out using the Romberg test on the St-150 stabiloplatform (Biomera, Moscow) in a vertical stand with European installation of feet in the positions of open (OE) and closed eyes (CE). A comparative analysis of the parameters of support symmetry in patients with VD from GV revealed a statistically significant sagittal asymmetry in the phases of OE and CE than in individuals of CG. Among the balancing parameters, the most informative parameters of computer stabilometry in patients with VD from GV were: an increase in the area of the statokinesiogram, a decrease in energy efficiency in both phases of the study, and an increase in the speed of the statokinesiogram in phase with CE. Computer stabilometry can be recommended as an additional objective research method in the diagnosis of early stages of VD from GV to improve the quality of periodic medical examinations.


2003 ◽  
Vol 53 ◽  
Author(s):  
Antonio M. A. Rebelo ◽  
Sandra Boeira Guimarães ◽  
José Manoel Dos Reis Neto

A importância do estágio atual e futuro de desenvolvimento do Paraná, de um “suprimento adequado” de insumos minerais é discutida frente a atual estrutura do setor mineral e possíveis demandas vindouras da indústria de transformação. Pela análise do segmento de calcário na Região Metropolitana de Curitiba - RMC, “carro-chefe” do setor mineral paranaense, verifica-se que há um descompasso entre o desenvolvimento deste setor e o do moderno parque industrial do estado. Entraves à evolução são devidos principalmente à insuficiência e dispersão do conhecimento geocientífico e tecnológico sobre os distritos mineiros, especialmente seus minérios e o meio físico envolvente, além dos conflitos ambientais e da disputa pelos territórios. A nova realidade de mercado exige políticas atualizadas para o setor mineral, incluindo legislações objetivas e coerentes e estruturas institucionais modernas e descentralizadas. Os pesquisadores, empreendedores e autoridades de planejamento e fiscalização deveriam dispor de: (a) documentação técnico-científica básica adequada; (b) sistemas de informações consolidados; (c) infra-estrutura física e (d) acesso a financiamentos. Tal base de apoio deverá permitir às autoridades ambientais e planejadores afiançar a segurança ambiental dos empreendimentos mineiros e seu desenvolvimento em harmonia com os demais tipos de ocupação do território. Conclui-se, então, que o poder público deve urgentemente criar as “condições básicas necessárias” para que o setor mineral paranaense possa se modernizar, diversificar e ampliar, integrando-se na nova realidade industrial paranaense. MINERAL EXPLORATION AND PARANA STATE DEVELOPMENT: THE CALCAREOUS ROCK SECTOR IN CURITIBA METROPOLITAN REGION Extended Abstract The importance for the current and future apprenticeship of Parana’s State development of “adequate supply” of mineral resources is discussed, facing the current mineral sector structure and possible demands generated by the State’s industrial evolution (Fig. 1). The mineral resources are the basic raw materials for the transformation industry, participating in a diversified range of industrial segments (Fig. 2). It can accumulate expressive values throughout a determined processing technological route which brings about important consequences for the economies in which it participates. In spite of the progress of globalization of the markets in the last decade, one the main vectors of the foreign policy of the developed countries is to guarantee the supply of strategic mineral resources for their economies. In Parana State, the largest geological vocation and production concerns the industrial rocks and minerals, highlighting calcareous rocks (Fig. 3), talc ores, ornamental rocks, clays, industrial sands, and attachés (sand and gravel). The Curitiba Metropolitan Region (CMR) is the main are exploiting and processing calcareous rocks, occupying the first place in domestic production (Fig. 4). Like wise, through the analysis of the calcareous rocks segment in CMR, a “driving force” of Parana’s mineral industry, the main are exploiting structural problems that inhibit the sector modernization were analyzed (Fig. 5) and suggested measures to minimize or eliminate them. Aspects were focused regarding the foreseen ability for the supplies, price and quality of the resources, as well as to the sustainability of this industrial segment face to the modern technological and environmental questions and of territorial occupation (Tab. 1). Considering the current profile and dimension of the mineral sector comparatively to the evolution and complexity already reached by Parana transformation industry, there is a contrasting difference between the development of that sector and current industrial park of the State. It is known that the geoscientific and technological existent knowledge on ores exploitation and routes for mineral processing are located in insufficient levels and dispersed, not configuring density for the growth, diversification and modernization of the sector (Tab. 2). Most enterprises will not reach competitive efficiency levels (Fig. 6), which is reflected in the quantity and quality of the exploited ores and produced resources. In the case of CMR, besides the mining conflicts versus environment, the pressures of the urban expansion on sites traditionally reserved for mining are evident. With such a knowledge and problems, allied to the current management and operational organization it is very unlikely to overcome the barriers of sustainable sector development. Impediments are due mainly to: (a) lack of geoscientific and technological knowledge about the mining districts, especially their ores and the involving landscapes and (b) environmental conflicts and the dispute for territories (Fig. 5). To accelerate the insertion of the mineral sector of Paraná in the new reality of the markets, impelling its modernization, expansion and competitiveness, the existence of updated policies are necessary including objective and coherent legislations and modern institutional structures. The State should provide to researchers, entrepreneurs, planning and inspecting authorities: (a) adequate basic technical-scientific documentation, (b) consolidated information systems, (c) physical infrastructure and (d) fundings access (Fig. 7). Such policies, essential to the planning and integrated development of the State, should be translated to programs and projects multi and inter-institutional, seeking for existent productive chains (Fig. 8). The focus of the actions should be the knowledge and valve of mineral raw materials, seeking to enlarge and diversify their technological and marketing possibilities. The knowledge deptal on the landscapes allied to the planning of the geographical space will allow to the authorities and planners to secure the environmental safety of the mining enterprises and their development in harmony with other types of territorial occupation. It is concluded, then, that the State should urgently create the “necessary basic conditions” so that the Parana mineral sector should be modernized, diversified and grown. The public policies should have in the “adequate supply” of mineral goods, strategic elements for the development of the State.


2018 ◽  
Vol 97 (10) ◽  
pp. 915-920 ◽  
Author(s):  
Marina V. Kuleshova ◽  
V. A. Pankov ◽  
M. P. Dyakovich ◽  
V. S. Rukavishnikov ◽  
N. V. Slivnitsyna ◽  
...  

Introduction. The vibration disease takes one of the leading places in the structure of the occupational morbidity in the Irkutsk region, its specific weight accounted of 21.1-35.9% of all newly revealed cases of occupational diseases in different years. The purpose of the study is to investigate the socio-psychological features and manifestations of the vibration disease clinical syndromes in local vibration-exposed employees in the dynamic of observation. Material and methods. The assessment of working conditions of employees in the aircraft enterprise, a coherent dynamic clinical and sociopsychological examination in employees with the occupational disease which continuing their work was carried out. Results. Working conditions have not been changed; the levels of the occupational and labor process factors have remained the same in the dynamic. Clinical manifestations of vibration disease and neurosensory hearing loss, which is the second (accompanying) occupational disease, were shown to be aggravated in patients continuing to work in contact with local vibration. A significant prevalence of diseases of the musculoskeletal system and the circulatory system has been revealed. High levels of the personal and situational anxiety, hypochondriacal traits, instability of emotional state, the rigid stereotype of behavior-oriented to caring about physical well-being are registered in patients. A reduction of health-related quality of life scores characterizing the role of physical and emotional functioning has been established, that indicates the limitations in the performance of daily work due to the deterioration of the emotional state. Discussion. The significant prevalence of diseases of the musculoskeletal and circulatory systems in vibration disease patients is associated with both the irritating effect of the actual vibration and the severity of the work process and significant physical overloads. The study results of the psycho-emotional status, the health-related quality of life in vibration disease patients allow assuming a significant effect of the pain syndrome on the emotional state, decrease of the health-related quality of life, which is consistent with the other authors’ studies. Conclusion. The study results show that it is necessary to remove workers from contact with vibration if the initial manifestations of vibration disease appear. Also, it is necessary to revise approaches to the secondary prevention of vibration disease, which should be aimed at preserving residual work capacity and medical and psychological adaptation of patients.


Author(s):  
А. V. RADKEVICH ◽  
V. I. ANIN ◽  
V. V. RADCHENKO ◽  
A. A. SHUVAEV

Purpose. Research and analysis of opportunities to improve the quality of insulation from secondary raw materials to study the prospects of their use in the construction industry as innovative materials with better performance than traditional ones. Materials made from secondary raw materials are of great importance not only in the formation of the building materials market, but also in the Ukrainian economy. The processing infrastructure creates a large number of jobs and tax deductions to the budget. In addition, the consumption of energy resources and the cost of servicing energy mains directly depend on the improvement of the thermal efficiency of premises and structures. The use of modern technologies of building materials combines economy, efficiency and durability of structures. Methodology. An important role in the development of modern construction production is played by the possibility of developing and improving the quality of building materials and technologies for their use. In modern conditions of the market of construction products there is an urgent need for constant modernization of construction processes, due to the efficient use of raw materials and the latest processing methods. With the use of modern information technologies and theoretical and methodological ways to solve problems, it becomes possible to consider options for improving the characteristics of building materials by combining qualitative characteristics and eliminating negative ones. Findings. This paper presents scientifically sound methods of modernization of secondary raw materials in the composition of insulation materials with high thermal and economic characteristics, which are able to compete in the market with traditional building materials. The analysis of flame retardants was carried out. Originality. Theoretical and methodological directions have been formed on the basis of research on the use of secondary raw materials for the manufacture of insulation in construction. The comparative characteristic is carried out. The conclusion on the competitiveness of the presented materials in the market of construction materials is made. Practical value. Analysis of the application of modern technologies for recycling on the basis of the latest theoretical and practical approaches, with the subsequent elimination of shortcomings. Consideration of the possibility of adding flame retardants to the composition of materials. Use of materials as insulation of premises and buildings. Development of processing infrastructure of Ukraine.


2019 ◽  
Vol 10 (3) ◽  
pp. 1036
Author(s):  
Nellis Oliveira Santos ◽  
Luiz Teruo Kawamoto Junior ◽  
Hewely Cardoso ◽  
Luci Mendes de Melo Bonini

This paper intends to describe the public health policies and labor conditions of road haulage drivers. In order to give a brief overview of these policies, it describes some research results, some indicators pointing to a loss of quality of life of these workers by virtue of their habits, their physical conditions and labor laws. Finally, the path indicates some points traced by national policies that seek to preserve the quality of life of these workers. The method used was literature review found in scientific bases, pointing data that guide the discussions. Due to the necessity of road transport in Brazil, truck drivers suffer poor working conditions to meet the high demand for their services. Seeing that the road haulage driver is directly involved in the delivery and flow of Brazil's logistical process of deliveries from the raw materials to the final product to the consumer, public policies are urgently needed to adjust and improve all the working and physical conditions to this class of workers in accordance with law 13.103/2015. High rates of traffic accidents with truck drivers were recorded, however, conditions for good sleep do not favour truck drivers, destabilising their physical condition, and classifying these professionals as sedentary because of negative health habits.


1998 ◽  
Vol XXX (1-2) ◽  
pp. 35-37
Author(s):  
О. A. Chudinova ◽  
R. G. Obraztsova ◽  
G. N. Samokhvalova ◽  
R. I. Filatova

Examination and treatment results are given, concerting 205 patients with vibration disease, in the clinical picture of which the most early and most expressed are neurovascular disorders in the system of regional circulation and vegetativesensoric polyneuropathies. It was shown, that in patients with vibration disease lowering of pulse blood supply in distal parts of upper extremities is being observed, as well aS dystoniccondition of arterial bed vessels, whose expression level is correlated with the disease stage. Suggested physiotherapeutic complexes (magnetic therapy, magnetic and laser therapy, aspirin-electrophoresis on the cervical department of vertebral column and hand) favourably enfluence peripheric hemodynamics, thus contributing to regress of basic clinical manifestations of vibration disease.


Entropy ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 873 ◽  
Author(s):  
Antonio Valero ◽  
Alicia Valero

This paper presents a thermodynamic vision of the depletion of mineral resources. It demonstrates how raw materials can be better assessed using exergy, based on thermodynamic rarity, which considers scarcity in the crust and energy requirements for extracting and refining minerals. An exergy analysis of the energy transition reveals that, to approach a decarbonized economy by 2050, mineral exergy must be greater than that of fossil fuels, nuclear energy, and even all renewables. This is because clean technologies require huge amounts of many different raw materials. The rapid exhaustion of mines necessitates an increase in recycling and reuse, that is, a “circular economy”. As seen in the automobile industry, society is far removed from closing even the first cycle, and absolute circularity does not exist. The Second Law dictates that, in each cycle, some quantity and quality of materials is unavoidably lost (there are no circles, but spirals). For a rigorous recyclability analysis, we elaborate the exergy indicators to be used in the assessment of the true circularity of recycling processes. We aim to strive toward an advanced economy focused on separating techniques and promoting circularity audits, an economy that inspires new solutions: an in-spiral economy.


2017 ◽  
Vol 4 (3) ◽  
pp. 73-83 ◽  
Author(s):  
O. Varchenko ◽  
D. Krysanov ◽  
O. Shust

Modern trends of agro-food provision are summarized with the systematization of the factors of external and internal environment, which affect the innovativeness of agro-food chains. The tendencies are highlighted and the transformational processes in the agrarian sector of Ukraine, which conditioned the destruction of eco- nomic relations and the breakdown of technological links of agro-food chains, the deterioration of the indices of safety and quality of agricultural raw materials and fi nal food products, are disclosed. The challenges for the functioning of dairy products chain are analyzed with the substantiation of the fact that the process of introduc- ing the complex of innovations and systemic methods of safety should cover all the actors involved, all the sec- tors and elements of production which ensure the safety and quality of agricultural raw materials and fi nal food products. It was proven that the trends of using innovations in the dairy farming should be the achievements in the fi eld of selecting cattle and fodder crops, modern technologies of forming and restoring the livestock to provide for the increase in its resistance and competitiveness. It was substantiated that it is an urgent issue for milk processing enterprises to implement technological innovations and to form long-term partnership relations with the suppliers of raw materials in order to diversify their product portfolio and offer quality and safe dairy products. It was substantiated that the functioning of agro-food chains will be conducted under the impact of environmental challenges which requires creating the conditions and prerequisites for a higher level of their flexibility to innovations, where the priority role should be attributed to state-private partnership in the elaboration and implementation of technologies.


2021 ◽  
Vol 14 (1) ◽  
pp. 11
Author(s):  
Olivier Vidal ◽  
Hugo Le Boulzec ◽  
Baptiste Andrieu ◽  
François Verzier

Humanity is using mineral resources at an unprecedented level and demand will continue to grow over the next few decades before stabilizing by the end of the century, due to the economic development of populated countries and the energy and digital transitions. The demand for raw materials must be estimated with a bottom-up and regionalised approach and the supply capacity with approaches coupling long-term prices with energy and production costs controlled by the quality of the resource and the rate of technological improvement that depends on thermodynamic limits. Such modelling provides arguments in favour of two classically opposed visions of the future of mineral resources: an unaffordable increase in costs and prices following the depletion of high quality deposits or, on the contrary, a favourable compensation by technological improvements. Both views are true, but not at the same time. After a period of energy and production cost gains, we now appear to be entering a pivotal period of long-term production cost increases as we approach the minimum practical energy and thermodynamic limits for many metals.


Wood Research ◽  
2021 ◽  
Vol 66 (5) ◽  
pp. 821-832
Author(s):  
ALEKSANDR VITITNEV ◽  
YURI ALASHKEVICH ◽  
ROMAN MARCHENKO ◽  
MIKHAIL ZYRYANOV ◽  
ALEKSANDR MOKHIREV

The study presents theoretical aspects and modern technologies for processing wood biomass, considers the possibility of obtaining wood chips from felling residues of cutting areas, in particular technological chips that meet the GOST 15815: 1983 “Technological chips. Specifications" standard for use as raw materials in the production of fiberboard. Wood fiber obtained from similar in size and quality indicators according to GOST 15815: 1983 technological chips, pre-treated in a defibrator, was subjected to a refining process at a low concentration, in particular using the developed design of the disks of the refiner of fibrillating action while regulating the main parameters of the process. The resulting wood-fiber mass was characterized by an improvement in the fractional composition of fibers, their size and quality indicators. As a result, improving the quality of the wood-fiber mass provides an increasein thephysical and mechanical properties of wood-fiber boards under all other equal production conditions, which excludes the use of binding resins, and may indicate the possibilitof effective processing of logging waste.


Sign in / Sign up

Export Citation Format

Share Document