Abstract The test procedures for determining Young’s modulus in concrete are complicated and time-consuming. Therefore, attempts to search alternative methods of its determination not surprising. relationship between the value compressive strength is known. However, this fibre-reinforced has been exactly described. article investigate correlation concrete. influence amount fibres on was also checked. Two types specimen were used tests. specimens differed content steel fibres, 0.25% 0.50%,...

The chemical composition of carrot umbel oils obtained by hydrodistillation three cultivars Daucus carota L. ssp. sativus was investigated GC and GC–MS. Forty components were identified. dominated monoterpene hydrocarbons (66–85%) represented mainly α-pinene (40–46%) myrcene (12–24%). most abundant sesquiterpene constituents β-caryrophyllene (4.6–13.2%) carotol (1.2–6.1%). Copyright © 2006 John Wiley & Sons, Ltd.

Combination of factors such as: properly organized logistics process, lack nonconformities, transport damages avoiding and in accordance Just In Time idea significantly reduces costs streamlines the entire production process. This paper proposes quality management tool for services assessment based on results obtained selected company operating Eastern Europe. Customers' expectations perceptions were compared using SERVQUAL method that concerns service five areas materiality, reliability,...

Abstract The objective of this paper is to propose effective methods implement sustainable development principles among young people, both in schools and universities. authors article recognize the significant potential individuals whose actions choices have a substantial impact on environment. By analyzing knowledge behaviors people towards environmental protection, based surveys conducted pupils students from south-eastern region Poland, identifies gaps that require improvement proposes...

Paper presents results of the research findings on quality problems analysis conducted in chosen enterprise producing a machinery for construction industry. The aim study was to identify causes and consequences production by using selected methods tools management, as well opportunities minimize existing risks process. show that approximately 77% losses are caused incompatibilities resulting from two employee errors low level supplied screw taps. indicate corrective measures may be taken...

The continuous development of construction due to the great needs society and industry, need build newer more durable buildings have meant that scientists all time look for new opportunities improve quality materials used in this field. Above all, concrete, as material commonly construction, has been subject research many years order properties. Already antiquity there were first attempts modify building with fibers. Initially, they organic However, patent dates from 1874, when A. Bernard...

The article presents the application of total productive maintenance (TPM) to analyze working time indicators casting machines with particular emphasis on failures and unplanned downtime reduce proportion emergency operation for preventive diagnostics. that influence individual factors complex machinery is different depends machines' modernity level. In an original way, by using correlation graphs, research findings impact TPM castings quality were presented interpreted. examination results...

The features of quality, which is an ambiguous, gradual and very subjective concept, cause that there no one absolute standard for it. Scientists are looking ways its evaluation improvements the existing methods. It relates to various areas, but at same time it also complex multi-faceted. There so many definitions quality constantly evolving. In paper two meth-ods Servqual Servperf assess teaching services were used. aim was compare results service analysis with use both methods indicate...

The structural content of castings and non-conformities that might occur in pressure die casting is mainly connected with technological parameters. Analysis the structure helps identify a group causes which are improper choice identified discussed paper were analysed by means metallographic examinations. A electron scanning microscope was used study for analysis casts. This allowed identification e.g. shrinkage depressions or misruns. location depression revealed insufficient cooling time...

Humans and the actions they take to improve their quality of life lead disturbance processes occurring in natural environment. These should not be stopped while solution found help humans coexist with nature. The ecological social problems resulting threats have become an inspiration for development concept sustainable development. Sustainable has led necessity implement changes towards balancing all areas human activity, including construction sector. Factors affecting are present many...

The problem of the structural failures is inextricably linked with construction industry. A failure can be defined as unintentional, violent destruction a building object or its part, well elements scaffolding, forming elements, sheet piling and excavation linings. Structural always entail financial environmental losses that cause big for companies. analysis allows to indicate causes led them, but also introduce actions help avoid them decrease their appearance in future. From point view...

Construction is one of the most dynamically developing sectors. Continuous population growth entails urbanization processes which from all areas human activities consume more and natural resources. Development construction sector a process that must not be stopped. However, principles sustainable development should respected while remaining resources adequately managed. Application into this economy can greatly improve condition environment throughout world. All definitions agree on need for...

The main goal of the article is assessment mezzanine financing as an innovative form in Poland, which might play a significant role dynamically developing companies can’t obtain sufficient capital from traditional sources bank credits. Mezzanine may be applied to: investment projects, increasing value company, expansion businesses through mergers and acquisitions, redemption shares or leveraged buyouts. methodology used this explanatory research comparative analysis. hypothesis assumes that...

Due to the increasing consumption of earth resources, new term "scarcity" appeared. Scarcity is fundamental economic problem having seemingly unlimited human needs and wants, in a world limited resources. It states that society has insufficient productive resources fulfil all wants [1]. And we must remember that, accordance with concept sustainable development, these should be enough also for future generations. Limited access raw materials large amount waste affect need recycling [2]....

Only ambitious and success-driven enterprises are able to adapt continuous changes in closer further business surroundings.Modern strive for meeting the customers' expectations needs.Even most successful cannot cease be competitive survive only with what they have already achieved.Enterprises adopt strategies ensure development.The aim of SWOT method, on one hand, is indicate direction enterprise should take order utilize their potential as much possible and, other realize shortcomings that...

The paper presents research findings concerning control results within the lift truck production elements process. Research aim is determine nonconformities responsible for law quality level of final product. management tools such as Pareto – Lorenz diagram and relationship were used in presented analysis. Pareto-Lorenz was to identify hierarchy process allowed identifying causes most common occurrence.

The article presents an analysis of the results obtained from testing simply supported reinforced concrete beams subjected to four-point bending.The beams, with two levels steel reinforcement (ρ s1 = 1.26%, ρ s 2 0.71%), and dimensions 0.12×0.30×3.30m, were loading involving a sudden increase in force multiple unloading cycles zero.The study included comparative deflection experimental tests (calculated based on curvature element readings measurement devices) values through calculations...

Bezdech (ang. apnea of prematurity, AOP) jest stosunkowo często występującym problemem zdrowotnym u pacjentów neonatologicznych urodzonych przedwcześnie. Wiąże się z zatrzymaniem oddechu, co w sposób oczywisty niebezpieczne dla zdrowia i życia dziecka. Oprócz klasycznych metod niefarmakologicznych, stosuje leczenie epizodów bezdechu za pomocą metyloksantyn i/lub doksapramu. Złotym standardem leczenia AOP cytrynian kofeiny, który charakteryzuje korzystniejszym profilem bezpieczeństwa niż...

This paper analyses structural failures of buildings over a period ten years. Particular attention was paid to the analysis caused by human mistakes. The performed according two criteria: stage building‘s life cycle and type works conducted in area building site. using quality management tool (histogram Pareto-Lorenza diagram), which allowed for identification causes responsible highest number events. showed that three account 64,61% occurred.