A multi-floor manufacturing in residential districts of huge city promotes decongestion of urban traffic and satisfy the population’s demand for essential goods. City manufacturing and its supply chain entail several challenges related to the sustainable development of a large agglomeration. Environmental problems impose significant constraints on such manufacturing activities and production waste in the urban environment poses a real problem that needs to be addressed by special research. This paper discusses integrated sustainable production waste management for a city multi-floor manufacturing cluster, consisting of a group of production buildings and a supporting logistics node. In line with the theory of integrated sustainable waste management, three key components are addressed: waste management stakeholders, components of the waste management system, and the technical, environmental and legal aspects of a city multi-floor manufacturing cluster. The goal of the paper is to develop a concept for a model of environmental sustainable waste management in a city multi-floor manufacturing cluster, aimed at ensuring the system safety: human - technical facility - environment. This model can serve as a basis for the development of appropriate logistics chains for production waste management considering their hazardousness indicator. The versatility of the model will allow it to be widely used, and when its stages and working principles are embedded in the practice of city multi-floor manufacturing, proper control over the waste management process can be achieved. The application of the proposed model of integrated sustainable production waste management in the practice of the city multi-floor manufacturing clusters will contribute to the environmental sustainability of its operation.
In India, the population of about eight lacks people who are engaged in riding cycle rickshaw as an occupation. It is an unorganized sector of India. A cycle rickshaw is a modified form of bicycle which is the cheapest mode of transportation for carrying passengers, luggage and goods. Many tasks connected with this occupation are associated with strenuous body postures, and some body movements typical for this job which, when combined with a heavy load, result in frequent work-related musculoskeletal disorders (WMSDs).Working postures were analyzed by means of Rapid Upper Limb Assessment (RULA) tool and Rapid Entire Body Assessment (REBA) tool in order to determine the area of discomfort. The outcome of the research is beneficial for manufactures of cycle rickshaws and similar products well as users of such products, including cycle rickshaw operators. Some suggestions were given to have increase the comfort and safety level.
Provision of professional work is very often associated with the worker's exposure to the occurrence of various types of threats. Some of the most important include those related to physical overload. Excessive strain on the musculoskeletal system can lead to muscle, ligament and tendon injuries. Therefore, it is necessary to evaluate the workplace in terms of its ergonomics. This paper presents the assessment of the load of the worker's movement system using the REBA method, which takes into account the location of: head with neck, torso, lower limb, as well as hands with the wrist, forearm and arm.
One of main purposes of every enterprise is to satisfy the buyer, therefore customer service is perceived as the capability or the ability of satisfying customers expectations and requirements. The present article was devoted to the issue of the quality assessment of customer service assuring the data security on the basis of pharmacies network case study of. The survey was based on prepared questionnaire forms analyzing the quality of the customer service on the basis of three areas. Results of the survey indicate that modern IT tools are very helpful, because they can provide data for analysis of numerous distribution individuals in the context of the quality of customer service in a very fast way.
The article presents research results in a scope of evaluation importance of safety in the workplace in the production processes of enterprise from metal products industry. Toyota’s management principles by Jeffrey Liker were pointed out, which refers to elements of Toyota’s house roof. An innovative BOST questionnaire survey was characterized as a tool for transformation of Toyota’s management principles into questions. Research group which participated in BOST study from the metal product industry was characterized. Research results were subjected to statistical analysis with a use of basic statistical parameters. Research results showed that safety in the workplace is important factor in the company.
The article presents the results of the assessment of the level of work safety, the level of modernity and the efficiency of the use of machines on the labelling and packaging line. The assessment of the level of occupational safety was made on the basis of an interview conducted with machine operators, by direct observation and analysis of historical data. The basis for assessing the level of modernity was the ABC technology method and the 5-stage Parker scale, while the OEE indicator was used to assess the level of efficiency of the use. An assessment of the level of safety, modernity, efficiency and other aspects such as cleanliness, completeness, maintenance, improvements for machines in the line with the use a scale of 0-5 was included and next, based on the validity index, the overall result was calculated. Modified McKinsey matrix was used to evaluate these factors and comparison the obtained results with other lines in the company. As a result of the conducted analyzes, it was pointed out that it is necessary to take improvement measures in the area of the worst-assessed factors.
Identification and evaluation of risk in the production project in the preliminary phase of its realization has important influence on manager’s decision about the project continuation, the reduction of project realization or the stop of project realization. The method of the quantitative ex-ante risk estimation in the project is proposed in the paper. The aim of the paper is to blow the whistle on importance of the ex-ante identification and estimation of the risk in the production project, as the factor which has positive influence on the project realization and implementation. In the article the following thesis is proposed: the ex-ante identification and estimation of risk in the project contributes to its efficient realization and increase possibility of obtaining the originally defined results.
Designers have a major interest about fatigue properties of materials used in transport industry. Each component in transport works under alternating stress. From this point of view the fatigue properties are important for single parts lifetime resulting into safety of whole components as cars and airplanes what leads to safety on the roads or air and have influence on human life as well. Therefore this paper deals with fatigue properties of wrought Inconel alloy IN 718 and aluminum cast alloy AlSi9Cu3. Both materials were put on fatigue push – pull test, but Ni – based IN 718 alloy at frequency of loading around 20 000 kHz (High Frequency High Cycles Fatigue) and aluminum alloy AlSi9Cu3 at frequency of loading around 80 Hz (Low Frequency High Cycles Fatigue). These parameters were chosen with respect of usage such materials for production of components used in transport industry applications. Results after fatigue tests are presented as Wohler curve. For prediction of source of fracture the SEM fractography analysis of fatigue fracture surfaces was made.
In recent years, the research of nodular cast iron has been focused on increasing fatigue resistence. In the paper, two types of alloyed nodular cast irons have been investigated – SiMo-nodular cast iron alloyed by 4% of silicon and 1% of molybdenum and SiCu-nodular cast iron alloyed by 4% of silicon and 1.5% of copper. SiMo-nodular cast iron is suitable for high-temperature applications, for example the exhaust manifolds of the combustion engines. SiCu-nodular cast iron is used in various components of tribotechnical units. These components are often loaded by fatigue. The mechanical and fatigue behaviour of both nodular cast iron types has been studied by means of tensile test, impact bending test, hardness test and fatigue tests. Fatigue tests were realised at low frequency cyclic push-pull loading up to 10 million cycles. The relationship between the amplitude of stress and number of cycles to failure was investigated and the fatigue strength was determined. Mechanical and fatigue properties of both nodular cast iron types are correlated with the microstructure of specimens.
Currently, a very big problem of cities in Europe and the world is air pollution with combustion products of car fuels, generation of heat and electricity. These impurities affect the microclimate of cities significantly. Pollution not only affects the area outside buildings, but getting into their interior through ventilation systems, which has an adverse effect on the indoor environment of buildings. High concentrations of CO2, cause a weakening of concentration in working people, which affects the deterioration of safety and work efficiency. For assessing air quality improvement on “green roofs”, a field study of CO2 content has been carried out on the “green roof” of a four-storey building, on a completely identical non-greened building, and on a highway with high-density traffic near them in Kiev. It was found that greening the roof significantly reduces the CO2 content from 501 ppm on the road and 452 ppm on the roof without protection to 410-415 ppm. It improves the conditions in which people work and rest.