Blue infrastructure is not only an element related to rainwater retention in a city but also a factor shaping urban space. As a result of the impact of blue infrastructure on form, function and character of urban space, a unique space is created – an urban blue space. The subject of the article is associated with the blue infrastructure on shape and character of urban spaces, as well as water-land spatial relations within urban blue space. Author of the article analised spatial relations occurring in port cities between aquatic and terrestrial space from perspective of the land, but also water, which is an equally important part of city’s area. As a result models of two-dimensional water-land relations have been recognised and described.

This article is written by a practising captain of a large vessel. The Maritime Code contains dozens of regulations relating to the captain of a sea- going vessel, placing a large number of duties on him, or giving him various rights. Such regulations are contained in almost all parts of the legislation. However, in Title Ill a range of modifications has been introduced in comparison with regulations up till now. It must be generally stated that the regulations contains in Title III of the new Maritime Code do not deviate radically from the provisions of the legislation in force hitherto. A new and certainly positive regulation (in respect of what may be broadly understood as the safety of any vessel) is Article 35 of the Code. It states that "The captain of a ship may oppose the owner in relation to the composition and professional qualifications of persons inscribed in the crew list." This regulation may help to improve the quality of a ship's crew, giving the captain the possibility of eliminating from its complement workers who are unsuitable for the profession.

The subject of analysis is the opposition of two themes – boredom and pleasure – in Chekhov’s The Shooting Party. The category of “boredom” includes the characters’ daily duties and work, while “pleasure” corresponds to the unfettered Karamazian lust for life. The fight against boredom turns into the pursuit for the fulfilment of all life desires but also leads to conflicts, which leads to many tragic events related to the deaths of several of the novella’s heroes. The polarization of the world of text on the metaliterary level allows us to notice the features of parody in relation to the popular literature of the day.

Blockchain technology currently receives a lot of public attention with its disruptive potential to rebuild a currently state of economy. While blockchain technology is treated potentially disruptive in socio-economic environment, there is a lack of understanding where and how blockchain technology is effectively applicable and where it has mentionable practical effects. The use of this technology inside many businesses caused a need to create a system of tools and methods allow properly description to generate valuable information for governments, management, customers etc. Due to a lack of information related to blockchain technology it is a must to explore potential of blockchain in the context of risk. This paper examinees a problem of implementation blockchain technology within finance industry. The main aim of the article was to outline how important is to understand potential of blockchain technology and its limitations, therefore the author prepared a model which can be used to classify blockchain technology implementations in finance industry. This study describes existing issues in the financial aspect.

The authors present a numerical study of a start-up of a boiler with a thick-walled element subjected to thermomechanical loading. The significance of calculations of real heat transfer coefficients has been demonstrated. Fluid dynamics, mechanical transient thermal and static structural calculations have been conducted in both separate and coupled modes. Strain-stress analyses prove that the effect of the heat transfer coefficient changing in time and place in comparison with a constant one as recommended by standards is the key factor of fatigue calculations.

Buzz, squeak and rattle (BSR) noise has become apparent in vehicles due to the significant reductions in engine noise and road noise. The BSR often occurs in driving condition with many interference signals. Thus, the automatic BSR detection remains a challenge for vehicle engineers. In this paper, a rattle signal denoising and enhancing method is proposed to extract the rattle components from in-vehicle background noise. The proposed method combines the advantages of wavelet packet decomposition and mathematical morphology filter. The critical frequency band and the information entropy are introduced to improve the wavelet packet threshold denoising method. A rattle component enhancing method based on multi-scale compound morphological filter is proposed, and the kurtosis values are introduced to determine the best parameters of the filter. To examine the feasibility of the proposed algorithm, synthetic brake caliper rattle signals with various SNR ratios are prepared to verify the algorithm. In the validation analysis, the proposed method can well remove the disturbance background noise in the signal and extract the rattle components with well SNR ratios. It is believed that the algorithm discussed in this paper can be further applied to facilitate the detection of the vehicle rattle noise in industry.