D. Dobrotă, Department of Engineering and Management of Technological Systems, Engineering Faculty, University “Constantin Brâncuşi” Târgu-Jiu, Romania Using metal construction made of St 52.3 steel is very large and in these conditions an area of interest to use them is represented by the equipments which w ork in diffi cult conditions. Due to the heavy conditions of such w elded structures, a...

We characterized the physical/chemical conditions and the algal and bacterial assemblages in ballast water from 62 ballast tanks aboard 28 ships operated by the U.S. Military Sealift Command and the Maritime Administration, sampled at 9 ports on the U.S. West Coast and 4 ports on the U.S. East Coast. The ballast tank waters had been held for 2–176 days, and 90% of the tanks had undergone ballas...

Abstract The paper presents a study on the influence of welding parameters that is done by radiographic interpretation X-ray analysis results collected from welded joins had been realized varying current intensity, tension and speed. base material experiment pressure vessel steel P355 N used for constructing railway tanks transporting liquids train. method flux-cored arc welding, semi-automatic...

Welding involves a metallurgical union process that relies on base metal fusion, i.e. the constituent metal of the structure, with or without filler metal, to form the soldered joint. Thus, a definition of welding proposed by the AWS is an "operation which aims to get localized coalescence produced by heating to a suitable temperature, with or without applying pressure and filler metal, produci...

Executive Summary This paper deals with security issues surrounding the use of Secure Shell (SSH). SSH is a replacement for telnet, rlogin, ftp, rsh, rcp, rdist, and other r*-based programs. It offers a secure communication channel between computers on an insecure network. Authenticity, confidentiality, and integrity are provided. Despite these features, SSH has several weaknesses that render i...

In many Mediterranean countries, users store water resources in private tanks, which are typically located on rooftops. These local reservoirs are generally connected directly to the water distribution network (WDN). This installation scheme causes a disconnection of the WDN from the users, and thus, the users’ water supply is no longer linked to their consumption, which changes the network ope...

I. Samardžić, Faculty of Mechanical Engineering Slavonski Brod, Croatia, A. Ćorić, Bratstvo, Novi Travnik, Bosnia and Herzegovina, M. Dunđer, Department for Polytechnic, University of Rijeka, Croatia. This paper presents the results of weldability investigation on welded joints made of fine grained high-strength S1100QL steel. The investigations are performed on two welded plates by HV 10 hardn...