Wyniki wyszukiwania - BazTech

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Research on the Distribution of Axial Excitation of Positive Pressure Ventilators in the Aspect of Stability Safety of the Load-Bearing Frame

Wieczorek Bartosz, Kaczmarzyk Piotr, Warguła Łukasz, Giedrowicz Marcin, Bąk Damian, Gierz Łukasz, Stambolov Grigor, Kostov Boris

Advances in Science and Technology. Research Journal

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2024

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Vol. 18, no 1

142--154

EN

Positive pressure ventilators are exposed to self-shifting during their operation. The aim of the article was to perform research analysing dynamic excitations resulting from vibrations caused by the operation of the drive system. The tests included four different fans, including one with an electric drive. The tests carried out made it possible to determine the effective RMS R value of vibrations, which is a maximum of 0.970 G, and the direction of the excitation relative to the vertical and horizontal axes. In addition, the values of vibration amplitudes on individual axes of the adopted reference system were determined. In this case, the highest values were measured on the vertical axes for combustion-powered ventilators (vibration value from 20 to 35 m/s2 ) and in the axis along the fan rotor for electric-powered ventilators (vibration value from 1.1 m/s2).

2

Wyniki kontroli małych placów budów na Dolnym Śląsku

Siegieda Jarosław

Przegląd Budowlany

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2023

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R. 94, nr 9-10

144--148

PL

W artykule zamieszczono wyniki kontroli przeprowadzonych na małych placach budowy na terenie województwa dolnośląskiego w 2022 i 2023 roku. Za małą budowę należy uznawać miejsce prowadzenia prac budowlanych, na którym pracę wykonuje do 20 osób w tym samym czasie. Zakres kontroli obejmował: zagospodarowanie terenu budowy, przygotowanie do pracy, przygotowanie i organizacja budowy, stanowiska pracy, roboty ziemne i wykopy, prace na wysokości, rusztowania, maszyny i urządzenia techniczne, substancje i mieszaniny chemiczne, urządzenia i instalacje elektryczne. Najwyższy odsetek stwierdzonych nieprawidłowości dotyczył przygotowania pracowników do pracy, prac na wysokości oraz rusztowań budowlanych. Skala naruszeń przepisów, a także liczba bezpośrednich zagrożeń ujawnionych podczas kontroli małych placów budów wskazuje na konieczność działań mających na celu dostosowywanie do standardów europejskich mniejszych przedsiębiorstw budowlanych.

EN

The article includes the results of inspections carried out at small construction sites in the Lower Silesian province in 2022 and 2023. The audit scope included: development of the construction site, preparation for work, preparation and organization of construction, workstations, Earthworks and excavation, work at height, scaffolding, machinery and technical equipment, chemical substances and mixtures, electrical equipment and installations. The highest percentage of irregularities found concerned the preparation of workers for work, work at height and construction scaffolding. The scale of violations as well as the number of direct hazards revealed during inspections of small construction sites indicates the need for measures to bring smaller construction companies up to European standards.

3

Wykorzystanie bezzałogowych statków powietrznych w procesie zarządzania bezpieczeństwem pracy w budownictwie

Nowobilski Tomasz, Hoła Bożena

Przegląd Budowlany

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2023

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R. 94, nr 9-10

126--130

PL

Bardzo istotnym elementem wpływającym na poziom bezpieczeństwa pracy w budownictwie jest stosowanie właściwych narzędzi wspomagających zarządzanie bezpieczeństwem pracy podczas prowadzenia prac budowlanych. W ostatnich latach coraz częściej wykorzystuje się w tym celu nowe technologie, do których należy zaliczyć bezzałogowe statki powietrzne. Celem artykułu jest analiza możliwości wykorzystania dronów w procesie zarządzania bezpieczeństwem pracy w budownictwie, z uwzględnieniem korzyści i ograniczeń płynących z zastosowania tej technologii w praktyce. Dodatkowo autorzy artykułu zwrócili również uwagę na nowe, niewystępujące dotychczas, źródła zagrożeń dla bezpieczeństwa pracy jakie generuje wykorzystanie dronów w procesie budowlanym.

EN

A very important element affecting the level of occupational safety in construction is the use of appropriate tools to assist in the management of safety during construction work. In recent years, new technologies, which include unmanned aerial vehicles, have been increasingly used for this purpose. This article aims to analyse the possibility of using drones in the construction safety management process, taking into account the benefits and limitations of using this technology in practice. In addition, the authors of the article also highlighted new sources of occupational safety risks generated by the use of drones in the construction process, which have not occurred before.

4

Wirtualne środowisko szkoleniowe dla zrobotyzowanych i zautomatyzowanych terenów budowy

Szóstak Mariusz, Hoła Bożena, Nowobilski Tomasz, Grzempowski Piotr

Przegląd Budowlany

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2023

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R. 94, nr 9-10

167--170

PL

Nieustanny postęp technologiczny prowadzi do coraz większego uzależnienia pracowników budowlanych od zrobotyzowanych i zautomatyzowanych maszyn budowlanych. Pomimo wielu korzyści płynących z automatyzacji i robotyzacji sektora budowlanego istnieje wiele zagrożeń związanych ze stosowaniem zaawansowanych technologii. Pojawiające się nowe zagrożenia, które wynikają z interakcji maszyna/robot-człowiek, mogą zostać zminimalizowane poprzez poprawę jakości prowadzonych szkoleń pracowników. Jedną z możliwości podniesienia jakości takiego procesu jest prowadzenie szkoleń w warunkach wirtualnej rzeczywistości. W artykule przedstawiono wirtualne środowisko szkoleniowe dla zrobotyzowanych i zautomatyzowanych terenów budowy oraz wyniki uzyskane na podstawie kursu pilotażowego przeprowadzonego w ramach projektu o akronimie SafeCROBOT.

EN

Constant technological progress leads to an increasing dependence of construction workers on robotic and automated construction machines. Despite the many benefits of automation and robotization in the construction sector, there are many risks associated with the use of advanced technologies. Emerging new threats resulting from machine/robot-human interaction can be minimized by improving the quality of employee training. One of the possibilities to improve the quality of such a process is to conduct training in virtual reality. The article presents a virtual training environment for robotic and automated construction sites and the results obtained on the basis of a pilot course conducted as part of the project acronym SafeCROBOT.

5

Formalne i praktyczne kwalifikacje koordynatora bezpieczeństwa i higieny pracy na terenie budowy

Smoliński Dariusz

Przegląd Budowlany

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2023

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R. 94, nr 9-10

153--156

PL

W artykule przedstawiono wyniki badań odnoszące się do kwalifikacji, wiedzy i umiejętności kierowników budowy w obszarze zarządzania bezpieczeństwem i higieną pracy, w tym sporządzania planów bezpieczeństwa i ochrony zdrowia. Przedstawiono także propozycję ram kształcenia dla koordynatorów w obszarze bezpieczeństwa i ochrony zdrowia w budownictwie.

EN

The article presents the results of research relating to the qualifications, knowledge and skills of site managers in the area of occupational health and safety management, including the preparation of health and safety plans. A proposal for a training framework for coordinators in the field of safety and health in construction was also presented.

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Wspólnotowe regulacje prawne dotyczące bezpieczeństwa pracy na budowie i ich implementacja do prawa polskiego

Harat Andrzej

Polish Journal of Materials and Environmental Engineering

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2023

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Vol. 6 (26)

46--56

EN

There is no doubt that the issues related to safety and health protection as well as accident prevention should be considered an important element of every investment and construction process. For this reason, numerous regulations in both the Community and Polish legal order have been imposed in this area. The Community regulations include numerous Community directives. The most important from the point of view of work safety in the construction process is the so-called framework directive of 12 June 1989 on the introduction of measures to im-prove occupational safety and health, and the eighth individual directive of 24 June 1992 on the implementation of minimum safety and health requirements at temporary and mobile construction sites. Owing to the above-mentioned legal acts, the minimum requirements re-garding occupational safety in the investment process have been unified at the Community level. This is very important due to the principle of free movement of workers introduced on the basis of Art. 45 of the Treaty on the Functioning of the European Union. The Community legal regulations clearly emphasize the full responsibility of employers in this respect and, in relation to the investment and construction process, the responsibility of investors or substitute inves-tors. The EU regulations were implemented into the Polish legal order by adopting the generally applicable legal acts - the Construction Law, and the regulation on information regarding health and safety, as well as the health and safety plan. The aforesaid regulations and, above all, the health and safety plan prepared on their basis are aimed at identifying hazards in the workplace and implementing solutions to prevent them at the investment implementation stage.

7

Assessment of the impact of working risks in the exploitation of raw materials

Seňová Andrea, Pavolová Henrieta, Škvareková Erika

Management Systems in Production Engineering

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2023

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nr 1 (31)

86--94

EN

The presented article deals with the use and evaluation of individual risks of work in the environment of Slovak mining company. The mining company is also a manufacturing company. The company mines the raw material and the final product (clinker). The main goal of the article is to monitor the incidence of accidents over the last 10 years, to analyse the group of risks that have a significant impact on accidents in mining companies and to evaluate them. The Risk Matrix, shows the relationship between estimated consequences and probability of risks formation. The next step is to use the workplace Risk Assessment Method to define acceptable risks and minimize the impact on workers. Another method we used is the Fault Tree Analysis (FTA) model. The output of the FTA model is the creation of a faulty tree, which resulted in the individual traumatized accidents that resulted in the definition of the resulting risk - namely a load injury.

8

Środki komunikacji wizualnej wykorzystywane w kształtowaniu postaw wobec bezpieczeństwa pracy

Szczygielska Agnieszka

Bezpieczeństwo Pracy : nauka i praktyka

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2023

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nr 4

15-21

PL

Związek komunikacji wizualnej z problematyką bezpieczeństwa pracy i ochrony zdrowia ma w Polsce długoletnią tradycję. Jej początków upatruje się w okresie międzywojennym, kiedy to artyści reprezentujący sztuki plastyczne zaczęli podejmować w swoich pracach tematy ważne społecznie i tworzyć materiały wizualne o charakterze informacyjnym i edukacyjnym, m.in. w formie plakatów dotyczących bezpieczeństwa pracy. Obecnie materiały takie powstają m.in. w wyniku działań Centralnego Instytutu Ochrony Pracy - Państwowego Instytutu Badawczego oraz współpracujących z nim instytucji i przedsiębiorstw. W artykule podjęto próbę scharakteryzowania środków wizualnych stosowanych obecnie w działaniach z zakresu kształtowania postaw wobec bezpieczeństwa pracy. Tego typu materiały odgrywają bowiem istotną rolę w kształtowaniu kultury bezpieczeństwa pracy - są źródłem informacji z zakresu bhp, odbieranych wzrokowo. W artykule omówiono: plakaty bezpieczeństwa pracy, infografiki, fotografie, filmy oraz animacje.

EN

The connection between visual communication and occupational safety and health has a long tradition in Poland. The beginnings are seen in the interwar period, when artists representing the visual arts began to take up socially important topics in their works and create visual materials of an informative and educational nature, e.g. in the form of occupational safety posters. Currently, such materials are being developed, e.g. as a result of the activities of the Central Institute for Labor Protection - National Research Institute and institutions and enterprises cooperating with it. The article attempts to characterize visual tools currently used in activities in the field of shaping pro-safe attitudes towards workplace safety. They play an important role in shaping attitudes towards work safety by providing visual information on workplace safety. The article discusses: occupational safety posters, infographics, photographs, videos and animations.

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Dobre praktyki zakładu górniczego wdrażane na rzecz zrównoważonego rozwoju

Matusz Mariusz, Adrian Bryła

Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

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2023

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nr 8

7--13

EN

Lafarge Cement S.A. out of concern for the environment and local communities, announced the „Lafarge Sustainable Development Strategy in Poland until 2030". It includes, among others: dialogue with the local community and local government, financial and advisory support for local initiatives, reduction of paraseismic vibrations thanks to the use of electronic detonators to initiate explosives, improvement of work safety thanks to: investments in modern mobile equipment, equipping machines with cameras, reversing sensors, reflectors and lights, purchase of defibrillators and modular first aid backpacks and introduction of dynamic risk assessment, reporting of perceived threats and analysis of their root causes using, among others, electronic applications, as well as activities improving the safety of residents (providing defibrillators, installing an air quality meter, supporting the Fire Brigade). The above solutions translate into maintaining good relations with residents and the health of employees, proving the ability of the mining plant to operate in symbiosis with the environment.

PL

W artykule opisano doświadczenia i działania wdrożone w zakładzie górniczym Cementowni Małogoszcz - Lafarge Cement S.A. w ramach strategii zrównoważonego rozwoju, ze szczególnym uwzględnieniem jej bardzo obszernego filara „Dobre Miejsce Pracy i Społeczności". Przedstawiono najważniejsze aspekty działalności kopalni, począwszy od nowoczesnych technologii w zakresie urabiania, załadunku i transportu surowca skalnego, poprzez nowatorskie rozwiązania w zakresie bezpieczeństwa pracy i ochrony środowiska (aplikacje na telefon czy dedykowane platformy internetowe), a kończąc na budowaniu zaufania wśród społeczności lokalnej.

10

Ocena prawdopodobieństwa wystąpienia wypadku na rusztowaniach budowlanych w wybranych województwach Polski

Nowobilski Tomasz, Hoła Bożena

Przegląd Budowlany

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2022

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R. 93, nr 9-10

104--108

PL

W artykule przedstawiono wyniki badań dotyczących szacowania prawdopodobieństwa wystąpienia wypadku przy pracy związanego z użytkowaniem rusztowań budowlanych w pięciu województwach Polski. W ramach przedstawionych badań opracowano autorską metodykę, w której wykorzystano: wyniki badań empirycznych, informacje o liczbie wypadków przy pracy z udziałem rusztowań budowlanych oraz dane statystyczne dotyczące wskaźników społeczno-gospodarczych. Otrzymane wyniki mogą być wykorzystane do predykcji prawdopodobieństwa wystąpienia wypadku na rusztowaniu budowlanym w przyszłości.

EN

The article presents the results of research on estimating the probability of occupational accidents related to the use of construction scaffolding in five regions of Poland. Within the framework of the presented research, the author’s methodology was developed using: the results of empirical research, information on the number of occupational accidents involving construction scaffolding and statistical data on socio-economic indicators. The results obtained can be used to predict the probability of a construction scaffolding accident in the future.

11

Management of the workplaces by the facilities of operations research

Geseleva Nataliia, Proniuk Ganna, Romanyuk Olexander, Akimova Olga, Troianovska-Korobeynikova Tetiana, Savytska Liudmyla, Rakhmetullina Saule, Mekebayev Nurbapa

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

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2022

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T. 12, nr 3

69--73

EN

The optimal location of workplaces plays an important role in the structure of occupational safety. The design of the workspace should ensure the optimal distribution of functions between person and machine in order to create safe working conditions, reduce the severity of work and the level of production injuries. Most often, workplace planning is carried out manually, by simple calculation, and then the rationality of workplace planning is evaluated, based on statistics of industrial accidents and occupational diseases, as well as indicators of labor productivity, for example, the ratio of compliance with norms. To solve the problem of optimal placement in the work mathematical models are built that can take into account various regulatory restrictions and are simple for further software implementation. It is proposed to choose the theory of φ-functions as a basis, which can be characterized as measures of proximity of objects. Thus, the set task of optimal placement of workplaces is reduced to the task of mathematical programming. The objective function determines the criterion of optimality – the minimization of the area or perimeter that will be occupied by the objects. This formulation of the problem is relevant because the use of the smallest production area, taking into account safety requirements, is an economic condition for effective production management. The constraint on the relative location of workplaces is set using φ-functions, which defines the decision domain. That, when formalizing restrictions, you can take into account all regulatory safety distances between workplaces, equipment, walls, etc. Thus, the work explores an approach that will allow automatic planning of the placement of a large number of technological objects, workplaces in accordance with occupational safety standards. Use of the software application, which can be implemented on the basis of the φ-functions apparatus, will significantly reduce the time of workplaces planning and increase its efficiency.

PL

. W strukturze ochrony pracy ważną rolę odgrywa optymalna organizacja miejsc pracy. Projektowanie przestrzeni roboczej powinno zapewnić optymalny podział funkcji pomiędzy człowieka i maszynę w celu stworzenia bezpiecznych warunków pracy, zmniejszenia uciążliwości pracy i poziomu urazów odniesionych w pracy. Najczęściej planowanie miejsca pracy odbywa się ręcznie, poprzez proste obliczenia, a następnie ocenia się racjonalność planowania miejsca pracy na podstawie statystyk urazów i chorób zawodowych, a także wskaźników wydajności pracy, na przykład współczynnika zgodności z normami. Do rozwiązania problemu optymalnego rozmieszczenia budowane są modele matematyczne, które mogą uwzględniać różne ograniczenia normatywne i są proste do dalszej implementacji programowej. Proponuje się wybór teorii funkcji φ, którą można scharakteryzować jako miarę bliskości obiektów. W ten sposób problem optymalnego rozmieszczenia miejsc pracy sprowadza się do problemu programowania matematycznego. Funkcja celu określa kryterium optymalności – minimalizację obszaru lub obwodu, który ma być zajęty przez obiekty. Takie postawienie problemu jest istotne, ponieważ wykorzystanie najmniejszej powierzchni produkcyjnej, z uwzględnieniem wymogów bezpieczeństwa, jest ekonomicznym warunkiem efektywnego zarządzania produkcją. Ograniczenia wzajemnej lokalizacji miejsc pracy ustalane są za pomocą funkcji φ, co określa domenę decyzyjną. Tak więc przy formalizowaniu ograniczeń można uwzględnić wszystkie normatywne odległości bezpieczeństwa między miejscami pracy, urządzeniami, ścianami itp. W związku z tym w artykule badane jest podejście, które będzie automatycznie planować rozmieszczenie dużej liczby obiektów technologicznych, miejsc pracy odpowiednio do standardów bezpieczeństwa pracy. Zastosowanie oprogramowania, które może być realizowane na bazie funkcji φ, znacznie skróci czas planowania miejsc roboczych i zwiększy jego efektywność.

12

New biomarkers for the assessment of fatigue evoked by long-term sleep deprivation based on pupillary light reflex using rheological models

Różanowski Krzysztof

Biocybernetics and Biomedical Engineering

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2022

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Vol. 42, no. 4

1162--1182

EN

Background: The pupillary reflex (PLR) can be used to describe the function of individual segments of the visual pathway. It is modulated by the autonomic nervous system (ANS) and clinical disorders. The results of the research on the PLR parameterization methods presented in the article show that it is possible to use the phenomenon of pupil contraction as a result of light stimulation to assess the level of sleepiness. Currently, the PLR reflex is mainly used as the primary tool to study the integrity of the sensory and motor functions of the eye. Emergency medicine physicians routinely test the pupil light reflex to assess brain-stem function. Methods: The study utilized a method for estimating the fatigue level caused by 48-hour sleep deprivation under standardized and controlled conditions through the development and implementation of the Kelvin-Voigt rheology model (KV), explaining the dynamics of the pupillary light reflex. The baseline parameters for the model were as follows: parasympathetic force (fp), sympathetic force (fs), pupil radius in rest conditions (r0), onset time: parasympathetic system (tp), onset time: sympathetic system (ts), product fp tp and product fs ts. These parameters were subject to a statistical analysis of variance and compared with the parameters determined by the pupillographic assessment system by AmTech, such as contraction velocity (CV), relative amplitude (RA), pupil diameter (DDil1-fast), pupil diameter (DDil2-slow), latency (Lat), time of minimum diameter (TMD), contraction time (CT), redilation time (RT). Results: The statistical analysis involved the data obtained in the research experiment on a group of 18 healthy volunteers enrolled in our study (range 26–32 years, fifty percent of the study group were female). Based on the parameters from the KV model developed, the statistical significance for the model indicators was determined, i.e, fp, r0, tp, ts and fp × ts, compared at different levels of sleep deprivation of 48 h. In addition, analysis of the determined indicators, via the AmTech pupillographic system, demonstrated that an increased level of sleep deprivation does not only result in a change in the slope and amplitude of the curve of the pupil diameter in the contraction phase, which is visualized by the CV, RA, CT parameters, but also in the pupil dilation curve shape (Dil1-fast, Dil2-slow, RT). Sleep deprivation was observed to cause an increase of TMD and Lat. Correlation analysis presented the strongest correlations between fp and the contraction velocity r = 0.73 (p < 0.05) and the minimum pupil diameters as expressed by the RA values: 0.66 (p < 0.05). The force fp, originating from the parasympathetic system, was correlated with redilation time – i.e., the larger the force, the shorter the time: -0.52 (p < 0.05). It also affected the value of the pupil diameter at the end of dilatation (DDil2-slow) r = 0.49 (p < 0.05). The delay in the force tp, originating from the parasympathetic nervous system (PNS), increased the duration of pupil contraction time. In this case, the correlation coefficient was r = 0.73 (p < 0.05). This was also facilitated by a delay (ts) on the part of the sympathetic nervous system (SNS), leading to a delay in dilatation and thus facilitating unrestrained pupil constriction. The correlation coefficient was r = 0.7 (p < 0.05). The controlled level of sleepiness, assessed via the Stanford Sleepiness Scale (SSS) test, had increased by about 150% by the end of the experiment. Conclusion: The results of the studies indicate that the fatigue biomarkers, as determined during the pupil dilation phase (DDil1-fast, DDil2-Slow), as well as the new method for describing the dynamics of the PLR, can provide an effective and specific indicator of sleepiness levels. These results are also confirmed by an analysis of the Stanford Sleepiness Scale assessment results. In addition, the use of the KV rheological model to describe the curve of the pupillary reflex makes it possible, through the designated parameters of the model, to independently assess the sympathetic (fs, ts) and parasympathetic (tp, tp) activation of the autonomic nervous system.

13

Association analysis of human error causes of electric shock construction accidents in China

Li Jue, Wen Yuan Yu

Archives of Civil Engineering

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2022

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Vol. 68, nr 2

427--443

EN

Electric shock accident is one of the main causes of fatal construction accidents. In this study, 101 electric shock accidents are analyzed to mine the potential associations of human errors. The modified Human Factors Analysis and Classification System (HFACS) is used to classify human factors of accident causes. Characteristics and potential causes of the accidents are identified by employing frequency analysis. Chi-square test and Apriori algorithm are utilized to explore the associations among the causes. Some significant association between any of two factors are shared. According to association rules using three criteria: support (S), confidence (C) and lift (L), the two key paths are extracted based on the hierarchy of the HFACS. One is: organizational process loopholes → failed to correct problem → perceptual and decision errors (S = 0.11, C = 0.423, L = 1.02), and the other is: organizational process loopholes → poor skill level of workers → routine violation (S = 0.149, C = 0.789, L = 1.945). Managerial implications are proposed to prevent or reduce accidents based on interconnections of factors and key paths.

14

Prediction model of seasonality in the construction industry based on the accidentality phenomenon

Hoła Bożena, Topolski Mariusz, Szer Iwona, Szer Jacek, Blazik-Borowa Ewa

Archives of Civil and Mechanical Engineering

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2022

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Vol. 22, no. 1

art. no. e30, 2022

EN

The construction industry is an economic sector that is characterized by seasonality. Seasonal factors affect the volume of production, which in turn affects the accident rate. The aim of the research presented in the article was to develop a model for predicting the number of people injured in occupational accidents in the construction industry. Based on the analysis of statistical data and previous studies, the occurrence of certain regularities of the accidentality phenomenon was found, namely the long-term trend over many years, as well as seasonality and cyclicality over the course of a year. The found regularities were the basis for the assumptions that were made for the construction of the model. A mathematical model was built in the non-linear regression dimension. The model was validated by comparing the results of prediction errors generated by the developed model with the results of prediction errors generated by other known models, such as ARIMA, SARIMA, linear and polynomial models, which take into account the seasonality of the phenomenon. The constructed model enables the number of people injured in accidents in the construction industry in selected months of future years to be predicted with high accuracy. The obtained results can be the basis for making appropriate decisions regarding preventive and prophylactic measures in the construction industry. Commonly known mathematical tools available in the STATISTICA package were used to solve the given task.

15

Ranking of management factors for safe maintenance system based on Grey Systems Theory

Tabor Joanna

Production Engineering Archives

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2021

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Vol. 27, Iss. 3

196--202

EN

The maintenance system is a key system that provides continuity and safety of the operation of production systems and that affects the safety of people working in these systems. At the same time, the maintenance system is a set of work processes carried out by people under specific environmental conditions, using specific equipment and within a specific organizational and management structure. The purpose of this article is to identify the main management factors that affect occupational safety and to rank these factors in terms of their effectiveness in ensuring safe maintenance, using the grey systems theory. Based on the literature analysis, 12 key management factors were identified and then subjected to expert assessment. In order to rank the factors, a decision model based on the grey systems theory (GST), i.e. systems with incomplete and uncertain information about structure and behavior, was developed and verified. The use of GST in the area of ensuring safety in maintenance is original. The findings of the article will be very useful for managers in implementing safe maintenance systems in various sectors of the economy.

16

Zestawy wyrobów do mocowania modułów fotowoltaicznych i kolektorów słonecznych w aspekcie wytrzymałości i bezpieczeństwa użytkowania

Frąckiewicz Piotr, Jakimowicz Marzena

Materiały Budowlane

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2021

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nr 7

41--44

17

The knowledge map as a management tool for the perception of occupational health and safety for construction facul tiles students

Obolewicz Jerzy, Baryłka Adam, Szczerbak Monika, Kuczyńska-Cesarz Anna

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych

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2021

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Nr 1

15--28

EN

Work constitutes a fundamental dimension of human existence on earth. Humans plan, organize, perform work and thus develop through the work of their mind and the physical transformation of the world. Knowledge management has become a widely discussed and increasingly popular concept worldwide. The essence of this concept is the creation and dissemination of knowledge, understood as the entire content existing in the human mind as a result of accumulated learning and experience. The article presents a knowledge map as a management tool for the perception of occupational health and safety and health for construction faculties’ students.

18

Czynniki kształtujące wzrost zagrożenia metanowego w ścianach w świetle doświadczeń Głównego Instytutu Górnictwa

Krause Eugeniusz, Litwa Piotr

Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

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2021

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nr 3

2--8

PL

W publikacji omówiono czynniki kształtujące poziom zagrożenia metanowego w rejonach ścian wydobywczych w polskich kopalniach węgla kamiennego w okresie wdrażania działań restrukturyzacyjnych, skutkujących między innymi wzrostem koncentracji wydobycia. Doświadczenia GIG Kopalni Doświadczalnej „Barbara", m.in. w zakresie zwalczania zagrożenia metanowego i pożarowego w polskich kopalniach, oraz 20-letnia współpraca tej jednostki naukowo-badawczej z Wyższym Urzędem Górniczym pozwoliły na opracowanie zasad, wytycznych oraz kryteriów oceny zagrożenia metanowego, stanowiących narzędzia dla praktyków w warunkach sukcesywnie zwiększającego się wydzielania metanu do środowiska ścian. Publikacja omawia efekty tej współpracy w zakresie poprawy bezpieczeństwa pracy w kopalniach węgla kamiennego.

EN

The publication discusses the research acquis of the Central Mining Institute of the Experimental Mine „Barbara" in the field of combating methane risk in Polish hard coal mines. As a result of more than 20 years of research, principles and guidelines for assessment and design of mining works in methane fields were developed in the form of instructions. The most important of them are: 1. Rules for classifying workings (rooms) in methane fields into individual levels of explosion risk in coal mining plants [9]. 2. Rules for classifying workings in methane fields in coal mining plants as hazardous into methane explosion risk levels [4]. 3. Rules for airing excavations under methane hazard conditions, including the selection of ventilation devices to mitigate it [6]. 4. Dynamic forecast of absolute wall methane-bearing capacity [7]. 5. Principles of working longwalls under methane hazard conditions [8]. 6. Principles of designing mining works under conditions of combined methane and fire hazard [5]. All these studies provided mine engineering staff with tools for assessing methane risk at the stage of designing and conducting mining works, as well as allowed for the selection of preventive actions.

19

Assessment of Occupational Risk in the Case of the Ultrasonic Noise Exposure

Pleban Dariusz, Radosz Jan, Smagowska Bożena

Archives of Acoustics

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2021

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Vol. 46, No. 1

167--175

EN

Increased efficiency of production and improved quality have contributed to the development of ultrasonic technological applications, in which low frequency ultrasounds are generated to operate, accelerate as well as to facilitate technological processes. Technological ultrasonic devices (i.e. sources of ultrasonic noise in the work environment, e.g. ultrasonic washers, ultrasonic welding machines) have relatively high power and their nominal frequencies are in the range from 18 kHz to 40 kHz. In Poland, ultrasonic noise (defined as noise containing high audible and low ultrasonic frequencies from 10 kHz to 40 kHz) is included in the list of factors harmful to health in the work environment and therefore the admissible values of ultrasonic noise in the workplaces are established. The admissible values of ultrasonic noise and the new ultrasonic noise measurement method make it possible to perform the assessment of occupational risk related to ultrasonic noise. According to this method, the scope of the measurements includes the determination of the equivalent sound pressure levels in the 1/3 octave bands with the centre frequencies from 10 kHz to 40 kHz. This paper presents the description of both, i.e. the method for ultrasonic noise measurements and the method of the assessment of occupational risk related to ultrasonic noise. The examples of the results of the assessment of occupational risk related to exposure to ultrasonic noise are also discussed.

20

Occupational safety and health in garment enterprises in Vietnam - the corporate social responsibility to employees

Thoa Bui Thi Kim

Annals of Computer Science and Information Systems

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2021

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Vol. 28

283--288

EN

By making statistics and analyzing the data provided by the Department of Occupational Safety and Health, ILO\&IFC, and other sources, the author shows the fact that implementing occupational safety and health in enterprises is a part of implementing corporate social responsibilities to employees, occupational safety and health in enterprises is an issue, which has the most violations in labor matters. They are mainly concentrated in 4 groups: worker protection, OSH management system, emergency response, chemicals and hazardous material, with very high non-compliance rates, 93%, 82%, 74%, 68% respectively. Through real analysis, the author gives some suggestions to improve the implementation of occupational safety and health.