<abstract xmlns="http://www.w3.org/1999/xhtml">Rapid firing of two bullets from the Skorpion submachine gun vz. 61 cal. 7,65 mm towards the target located at a distance of 25 [m] was registered at a police shooting range. The tests confirmed the opinion of the users regarding the presence of significant weapon dispersion. This undesirable effect prompted the authors to undertake work in order to improve the dynamic properties of weapons. Experimental studies provided information on the kinematics of movement of human - weapon system. On the basis of the courses of variation of displacement, velocity and acceleration over time, the behaviour of a machine gun in thirteen characteristic points of its operation was specified. The verification of bullet holes and analysis of recorded images showed a slight deviation of movement of the objects under examination from the vertical plane. Therefore, a physical model of human - weapon system with five degrees of freedom in the vertical plane was formulated. On the basis of the physical model, a mathematical model of human - weapon system was derived, which can be classified as linear, determined, variable over time, dissipative and constrained.</abstract>

The Theoretical Model of Human – Weapon System

<abstract xmlns="http://www.w3.org/1999/xhtml"> The article presents the calculations of Cooling Skid units used on oil rigs required by the specific provisions of the classification society American Bureau of Shipping (ABS). Stringent requirements for equipment intended for offshore drilling research relates to the strength of the environmental loads such as wind loads and strength check points in towing and lifting hooks. The article describes how the simulation calculations are carried out to meet the criteria set for by the classification society American Bureau of Shipping (ABS).</abstract>

Application of the Rules of the American Bureau of Shipping (Abs) to Design Mobile offshore Structures

<abstract xmlns="http://www.w3.org/1999/xhtml"> This article defines the types of incidents suffered by ships which need to transit to an appropriate place of safety in order to improve their technical condition. It presents some information concerning the passage planning of ships involved in an incident and data used to assess the risk of such transit. Annex 2 presents a set of conventions concerning passage to a place of refuge.</abstract>

Pas Sage Planning for Ships Involved in an Incident and Seeking a Place of Refuge

<abstract xmlns="http://www.w3.org/1999/xhtml"> One of the most important aims of this paper is to identify the current idea of safety culture, and to present authors’ understanding of safety culture, how it may be comprehended and perceived, and what benefit it can bring for improving safety at sea. This article discusses the human role in this aspect, namely, who fulfils their responsibilities (work, service, duty) which are connected in a wide understanding of maritime Industry (both at sea and on land). The preliminary analysis of the concepts of safety culture, which has been carried out, points clearly to the human factor (which has a direct impact on the shape and meaning of safety culture) as one of the main links which connects multidimensional maritime safety, environmental protection and safety of life at sea.</abstract>

Safety Culture in the Management System of Safe Exploitation of the Ship and Pollution Prevention

<abstract xmlns="http://www.w3.org/1999/xhtml">This article presents mathematical dependence relations used for direct conversion of geodetic coordinates into UTM (Universal Transverse Mercator) and inverse conversion recommended by military standards. It mainly focuses on some formulas taken from the National Geospatial- -Intelligence Agency publication NGA.SIG.0012_2.0.0_UTMUPS - March25, 2014 and additionally from IHO Manual of Hydrography published by the International Hydrographic Office. In order to illustrate application of the presented formulas the article includes some relevant calculation examples on the reference ellipsoid WGS 84 (World Geodetic System of 1984).</abstract>

Analytical Dependence Relations of Converting Geodetic Coordinates Into UTM Coordinates Recommended in Hydrographic Work

<abstract xmlns="http://www.w3.org/1999/xhtml"> Autonomous underwater vehicles are vehicles that are entirely or partly independent of human decisions. In order to obtain operational independence, the vehicles have to be equipped with a specialized software that usually has many different parameters. The parameters decide about effectiveness of the software and in consequence the vehicle. The paper reports experiments performed in simulation, whose goal was to analyze the influence of selected parameters of High- -level Control System of Biomimetic Underwater Vehicle on the vehicle ability to avoid obstacles.</abstract>

The Influence of Parameters of Biomimetic Underwater Vehicle Control System on the Ability of the Vehicle to Avoid Obstacles

<abstract xmlns="http://www.w3.org/1999/xhtml"> In this paper, there has been constructed such a model of the non-classical Bittner operational calculus, in which the derivative related to Horadam sequences is understood as a difference operation S{x(k)}: ={x(k+2) - ax(k+1) - bx(k)}.</abstract>

A Discrete Non-Classical Operational Calculus Model with the Horadam Difference

AHEAD OF PRINT

Volume 224 (2022): Issue 1 (March 2022)

Volume 223 (2020): Issue 4 (December 2020)

Volume 222 (2020): Issue 3 (September 2020)

Volume 220-221 (2020): Issue 1-2 (June 2020)

Volume 219 (2019): Issue 4 (December 2019)

Volume 218 (2019): Issue 3 (September 2019)

Volume 217 (2019): Issue 2 (June 2019)

Volume 216 (2019): Issue 1 (March 2019)

Volume 215 (2018): Issue 4 (December 2018)

Volume 214 (2018): Issue 3 (September 2018)

Volume 213 (2018): Issue 2 (June 2018)

Volume 212 (2018): Issue 1 (March 2018)

Volume 211 (2017): Issue 4 (December 2017)

Volume 210 (2017): Issue 3 (September 2017)

Volume 209 (2017): Issue 2 (June 2017)

Volume 208 (2017): Issue 1 (March 2017)

Volume 207 (2016): Issue 4 (December 2016)

Volume 206 (2016): Issue 3 (September 2016)

Volume 205 (2016): Issue 2 (June 2016)

Volume 204 (2016): Issue 1 (March 2016)

Maritime Technical Journal

 Scientific Journal of Polish Naval Academy has been published since 1959 (in electronic version since 2004). Every year four volumes are published. In this Journal Authors publish their original and previously unpublished scientific articles in the area of technical sciences in English. All the articles contain Polish summaries and key words. All the articles are reviewed by two reviewers. The list of reviewers is published once a year. The Journal has online and printed versions. Why subscribe and read  In the Journal one can find original scientific articles from technical fields, mainly Mechanical Engineering, Electrical Engineering, Geodesy and Cartography. ‘Scientific Journal of Polish Naval Academy’ is an excellent platform for exchanging knowledge and experiences for scientists and experts. Each new issue of the Journal contains articles which present high quality research results of Polish specialists and is an excellent source of professional knowledge for the recipients.  Why submit  Our Journal offers review procedure and short deadlines between sending of the article and approval for publication. All articles are available in Open Access.  The journal has no article processing charges (APCs) and submission processing charges.  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 