For long years, Baltic cities and Kobe city had strong relationship at administrative aspect and academic aspect. Recent several years, the relationship has been recognized again and started cooperative activities again. And there are some cooperative plans in future. In this paper, authors would like to explain history and starting/restarting chance of relationship between Baltic university and Kobe University, cooperative activities in recent years, and cooperative activities at now and in future.

Problems of development of 3D city models are analysed. To develop such kind of model a great amount of information has to be computed. Collecting and matching the initial data is the most time and labour consuming job. Therefore first of all we have tried to investigate such a data source that would comprise the biggest part of needed data. We also have been looking for the data source that enabled us to constantly refresh and present the data describing the real or true to life situation. We have analysed the possibilities of city cadastral information system and here we state that it is suitable for that purpose. This article presents the idea how 3D city model consisting of prismatic building block models could be developed with the help of available cadastral information.

The article analyses the possible influence of third-party rights infringed during construction planning on the implementation of an investment project. It analyses the process for defence of third party rights infringed during territorial planning. The focus in this process is on third party rights and opportunities to learn about possible infringement of such rights. In a construction project, judicial disputes are an unwanted risk factor, which may disrupt the entire project. It is therefore necessary to plan and apply preventive measures for the mitigation of such risk at the initial planning stage of a construction project. For that end, the article presents some principles of behaviour and actions that could help investors and third parties to solve conflicts, reduce their negative outcomes or reach an arrangement satisfactory to both disputing parties.

The authors of the article carried out a feasibility study of the complex decision support system (DSS) which is designed for a successful roof installation. Analysis was made to examine the created database (DB) of the roof design variants. Delphi technique was used to determine the main parameters and sub-parameters for possible roofing projects variants evaluation and to assess importance and weight of the parameters. After assessment of the complex DSSs creation methodology, parameters used in the system, indicators and the practical aspects of the application, it was planned to create the prototype of the system. For this purpose DSSs of a variety of application fields and their development processes were researched. Based on the research results, the authors proposed the complex DSS model, which enables customers to explore different roof installation projects and inform them about the benefits and costs of the projects being assessed.

The design of urban parks is a complicated and intensive process. Structural design modelling and management is needed which can be efficiently realized using information technologies to reach the required results allowing to satisfy not only the demands of all groups of interest, but also aesthetical, ecological, town planning and the like requirements. Currently systems used for urban park design (GIS, landscape planning, visualization systems) can fulfil tasks which are given only by a designer. In order to use these systems more efficiently it is advisable to create an integrated design system which can incorporate design and database systems. To develop such an integrated system a model of intelligent park design should be created for transfering part of analytical work to computer, when the available data, design criterion and requirements of all groups of interest are estimated. A scheme of the basic structure of an integrated design system and some more detailed stages of de...

Intelligent computer-aided design is impossible without the object of design, component parts, participants of the process and analysis of their relations. The control of these relations was performed without computer. Therefore the processes flew without optimal criteria and technics of optimisation. Renovation of a building will depend on three most important concerned groups involved in the process: customers; designing organisations; building and constructing organisations. The entire process of design—from the idea to complete documentation—must be planned and executed with consideration of goals aspired by the interested parties—customers, designers and construction organisations. This process should realise the cycles of design, co-ordination and expertise of final solution. There are one-stage or two-stage design processes in traditional design process (Fig 2). Development of the project by one or two stages is pointed out by the design task of customer and depends upon tech...

Numerical and experimental investigations of a multimodal piezoelectric traveling wave actuator are presented. The actuator consists of a cylindrical stator with a conical hole and piezoceramic rings that are located at the node of the first longitudinal and second bending vibration modes; one piezoceramic ring is also placed at the bottom of the actuator. The actuator is clamped at the bottom using a special supporting cylinder and a ball bearing. Traveling-wave-type vibrations are excited at the top surface of the cylinder by employing a superposition of the first longitudinal and second bending vibration modes of the stator. The conical hole of the stator is used to amplify the vibration amplitudes of the contact surface. Four electric signals with phase difference of π/2 are used to drive the actuator. Numerical and experimental investigations showed that the proposed actuator is able to generate up to 115 RPM rotation speed at constant preload force.

Santrauka Parkas labai svarbus ekonominis, socialinis, kultūrinis miesto plėtros veiksnys. Miesto parko yra projektavimas sudėtingas ir imlus procesas. Būtinas sisteminis projektavimo modeliavimas ir valdymas, kuris yra efektyvus taikant informacines technologijas. Projektuojant parkus būtina atsižvelgti į įvairių suinteresuotų grupių poreikius, taip pat į estetinius, architektūrinius, ekologinius, ekonominius reikalavimus. S˘iuo metu projektuojant parkus taikomos įvairios informacinės technologijos - geoinformacinės sistemos, kompiuterinio projektavimo ir grafinės sistemos, duomenų bazių valdymo sistemos. Tikslinga kurti integruotas parkų projektavimo ir valdymo sistemas, kurios jungtų projektavimo, duomenų valdymo, žinių sistemas į vieną branduolį, leidžiantį taikyti intelektinį parko ir infrastruktūros projektavimą ir valdymą.

The paper presents a numerical and experimental investigation of a novel two degrees of freedom (2-DOF) piezoelectric actuator that can generate rotary motion of the sphere-shaped rotor as well as induce planar motion of the flat stage. The actuator has a small size and simple design and can be integrated into a printed circuit board (PCB). The application field of the actuator is small-dimensional and high-precision positioning systems. The piezoelectric actuator comprises three rectangular bimorph plates joined with arcs and arranged by an angle of 120 degrees. A high-stiffness rod is glued on the top surface of each bimorph plate and is used to rotate the rotor or move flat stage employing contact friction force. Three U-shaped structures are used for the actuator clamping. 2-DOF rotational or planar movement is obtained by applying a harmonic or asymmetric electrical signal. The operation principle of the actuator is based on the superposition of the B20 out-of-plane bending mod...

The paper presents a numerical and experimental investigation of a novel two degrees of freedom (2-DOF) piezoelectric actuator that can generate rotary motion of the sphere-shaped rotor as well as induce planar motion of the flat stage. The actuator has a small size and simple design and can be integrated into a printed circuit board (PCB). The application field of the actuator is small-dimensional and high-precision positioning systems. The piezoelectric actuator comprises three rectangular bimorph plates joined with arcs and arranged by an angle of 120 degrees. A high-stiffness rod is glued on the top surface of each bimorph plate and is used to rotate the rotor or move flat stage employing contact friction force. Three U-shaped structures are used for the actuator clamping. 2-DOF rotational or planar movement is obtained by applying a harmonic or asymmetric electrical signal. The operation principle of the actuator is based on the superposition of the B20 out-of-plane bending mod...

A new era with rapid technological changes, digitization, new forms of labour organization requires innovative ideas for modern education using a virtual learning environment and available technical means. This article discusses the prerequisites for creating a concept of a universal curriculum for first-year students in construction specialities for teaching the fundamentals of technical disciplines - that means basic engineering education, with integrating the  Building Information Modeling (BIM).The Building Information Modeling (BIM) methodology includes the concept of combined information about all the parameters of a three-dimensional object. This is universally supported by modern technology and can be used to develop innovating teaching methods.To identify the prerequisites for the concept of a universal electronic course, an analysis of the IMD statistics was carried out and a generalized overview of the content of educational programs in the main technical disciplines of h...