Aramaic receipts and title-deeds on clay tablets are formally distinguished in the 7th century B.C., although they are closely related juridical documents. Only two receipts are known at present and both have a triangular shape like loan contracts. Instead, titledeeds, often called sale acts, have a rectangular shape and are narrowest along the lines of writing. They are sealed on the upper edge of the tablet or in the upper part of the obverse. So far, there is only one Aramaic title-deed concerning a field and a second one fixing the boundary between two properties. Instead, four or five deeds concern the acquisition of persons, not necessarily slaves. Considering the state of the clay tablets and their somewhat inadequate edition, a new transliteration and translation of the operative parts of the deeds are provided below, omitting the lists of witnesses. Short comments are proposed also for the fragment of a title-deed dated in the 34th year of Nebuchadnezzar II.

The Maritime Labour Convention (MLC 2006) entered into force in 2013. The MLC 2006 aims at creating a single, coherent global instrument, consolidating existing International Labour Organisation conventions, and as well constitutes one of the main international maritime instruments of the International Maritime Organization, together with the International Convention for the Safety of Life at Sea (SOLAS), the International Convention for the Prevention of Pollution From Ships (MARPOL) and the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW). Seafarers are entitled to lodge complaints on board a ship in case of non-compliance with the legal standards, procedures, or guidelines set forth in the MLC 2006, including seafarers’ human rights. The complaint system must include safeguards against victimisation. In 2015, the regulations of the MLC 2006 were implemented into a new Polish Act on Maritime Labour (MLA 2015). One of the most innovative aspects of the MLA 2015, as far as ILO Conventions are concerned, is the certification of seafarers’ living and working conditions on board ships, regulated in Chapter 8 of the Act (entitled: MLC documents and inspections and controls of the ship), as well as the on-board complaint procedure described in a detailed manner in Chapter 9 of the new Act.

The paper presents a thermodynamic analysis of the integration of a cryogenic air separation unit into a negative CO ₂ emission gas power plant. The power cycle utilizes sewage sludge as fuel so this system fits into the innovative idea of bioenergy with carbon capture and storage. A cryogenic air separation unit integrated with the power plant was simulated in professional plant engineering and thermodynamic process analysis software. Two cases of the thermodynamic cycle have been studied, namely with the exhaust bleed for fuel treatment and without it. The results of calculations indicate that the net efficiencies of the negative CO ₂ emission gas power plant reach 27.05% (combustion in 95.0% pure oxygen) and 24.57% (combustion in 99.5% pure oxygen) with the bleed. The efficiencies of the cycle without the bleed are 29.26% and 27.0% for combustion in 95.0% pure oxygen and 99.5% pure oxygen, respectively. For the mentioned cycle, the calculated energy penalty of oxygen production was 0.235 MWh/kgO ₂ for the lower purity value. However, for higher purity namely 99.5%, the energy penalty of oxygen production for the thermodynamic cycle including the bleed and excluding the bleed was indicated 0.346 and 0.347 MWh/kgO ₂, respectively. Additionally, the analysis of the oxygen purity impact on the carbon dioxide purity at the end of the carbon capture and storage installation shows that for the case with the bleed, CO ₂ purities are 93.8% and 97.6%, and excluding the bleed they are 93.8% and 97.8%, for the mentioned oxygen purities respectively. Insertion of the cryogenic oxygen production installation is required as the considered gas power plant uses oxy-combustion to facilitate carbon capture and storage method.

This article proposes and examines a solution in which the base-station for the fifth generation radio access network is simplified by using a single millimeter-wave oscillator in the central-station and distributing its millimeter-wave signal to the base-stations. The system is designed in such a way that the low-phase-noise signal generated by an opto-electronic oscillator is transmitted from the central-station to multiple base-stations via a passive optical network infrastructure. A novel flexible approach with a single-loop opto-electronic oscillator at the transmitting end and a tunable dispersion-compensation module at the receiving end(s) is proposed to distribute a power-penalty-free millimeter-wave signal in the radio access network. Power-penalty-free signal transmission from 10 MHz up to 45 GHz with an optical length of 20 km is achieved by a combination of a tunable dispersion-compensation module and an optical delay line. In addition, measurements with a fixed modulation frequency of 39 GHz and discretely incrementing optical fiber lengths from 0.625 km to 20 km are shown. Finally, a preliminary idea for an automatically controlled feedback-loop tuning system is proposed as a further research entry point.

The paper presents the problem of building disturbances, which are usually an inseparable element during the implementation of construction projects. They were classified, their causes and sides of the construction process responsible for their creation were identified on the basis of the analyzed construction investment. In addition, using the Earned Value Management method, the scale of delays arising in construction works and the related effects were determined. The important role of close cooperation and good communication between all participants of the construction process was emphasized, which would reduce the phenomenon of building disturbances, but also mitigate the negative effects of delays that have already occurred.