In the article, the authors analyze and discuss several models used to the calculation of air gauge characteristics. The model based on the actual mass flow (which is smaller than the theoretical one) was proposed, too. Calculations have been performed with a dedicated software with the second critical parameters included. The air gauge static characteristics calculated with 6 different models were compared with the experimental data. It appeared that the second critical parameters model (SCP) provided the characteristics close to the experimental ones, with an error of ca. 3% within the air gauge measuring range.
In accordance with the principles of conducting revitalization activities specified in the Revitalization Act in force from 9 October 2015 and horizontal guidelines for revitalization in operational programs for 2014-2020, the preparatory phase of the revitalization process should include multi-layered analyzes concluded with deductions included in communal urban regeneration programs. The article describes the role of student architectural and urban competitions performed in cooperation between municipalities and universities as innovative analytical and conceptual activities that could form the basis for specifying recommendations in revitalization strategies planned by a given municipality. The infl uence of the student competitions’ results on the development of the city revitalization strategy is presented on grounds of periodic competitions organized at the Faculty of Architecture of the Gdańsk University of Technology in cooperation with the Department of Plans and Marketing of the City Hall of the City of Gdańsk.
This article presents the validation process of a brake FE model by means of temperature measured on a special stand using infrared technology. Unlike many other publications, the authors try to show the interaction between measurement technology and numerical modeling rather than only nice, perfectly correlated graphs. Some difficulties in choosing and using validation parameters are also pointed out and discussed. Finally, results of FE analyses are compared with measured data, followed by explanation of applied numerical technology and estimation of validation process effectiveness.
The revitalization of brownfi elds and post-industrial facilities is a long-term and multistage process. In the first stage of revitalization, it is important to assess the material, emotional and utilitarian value of the preserved cultural heritage. On the example of a revitalization project that has been ongoing since 1996, the former areas of the Gdańsk Shipyard, where the remains of the Imperial Shipyard and Schichau Shipyard are located, the process of formulating the value of the preserved cultural material heritage has been presented. The impact of this process on the subsequent stages of the revitalization of the Young City in Gdańsk was also presented. Gdańsk Shipyard is the cradle of Solidarity, so the emotional value associated with the events accompanying the creation of the Solidarity movement was considered to be the dominant one. Only two objects were entered in the register of monuments; BHP Hall and Solidarity Square (Plac Solidarności). When the Local Development Plan has been passed many investments have begun by various investors without comprehensive integrated activities. The demolition of the preserved halls and the dismantling of shipyard equipment began. This caused that in 2015 the uniqueness of the survived post-industrial complex, qualifying it for inclusion in the World Heritage list, was appreciated. In 2018, the Provincial Pomeranian Monument’s Conservator began the procedure of entry of the preserved objects to the register of monuments. This resulted in the suspension of all investments that commenced legally in the area covered by the proceedings. Lack of proper assessment of the cultural value of material heritage at the stage of preparing the revitalization process led to the loss of part of this heritage and caused increase of the investment activities risk in this area.
The cephalopod diet of the gentoo penguin, Pygoscelis papua and the Antarctic fur seal, Arctocephalus gazella was comparatively analyzed at Laurie Island, South Orkney Islands. A total of 125 stomach samples were collected by the water off-loading method from gentoo penguins during the autumns of 1993, 1995 and 1996, and 39 fur seal scats were collected from mid March to April 1988. Cephalopods preyed upon by gentoo penguins were represented by 1974 beaks (1628 lower, 346 upper) which occurred in 50.4% of the samples. Lower beaks identified belonged exclusively to the squid Psychroteuthis glacialis. The mean lower rostral length (LRL) of these beaks was 1.1 mm (range 0.4– 1.8 mm). From the Antarctic fur seal scats 103 beaks (41 lower, 62 upper) were removed from 60.6% of scats which contained prey remains. The cephalopod species identified were Slosarczykovia circumantarctica and P. glacialis which constituted 78.8% and 21.1% in terms of numbers, respectively. The mean lower rostral length for S. circumantarctica was 2.7 mm (range 2.0–3.5 mm), while that of P. glacialis was 1.6 mm (range 1.0–2.5 mm). The foraging behaviour of the two top predators was analyzed and discussed according to the composition and size of their cephalopod prey.