Journal of International Research Publications: Materials, Methods & Technologies, Volume 3, 2008 ISSN 1313-8014 Published by Science & Education Foundation

Table of Contents

WEB BASED ICT HUMAN RESOURCES MANAGEMENT SYSTEM

Ljubica Kazi*, Radulovic Biljana*, Radosav Dragica*, Sajfert Zvonko*

* University of Novi Sad, Technical faculty „Mihajlo Pupin” Zrenjanin, Djure Djakovica bb

Received: 20.01.08; Cited: 16.04.08

Abstract: The need for systematic and holistic approach to human resources management is specially important in ICT sector. Human resources management within organizations or at regional level should lead to improvement of quality products and services.Web tehnologies are used as a media for integration of different aspects of human resources management – employment, continual education, association of ICT professionals, continual spreading and sharing new tehnology . This paper presents key elements of web based system for human resources management – a web application that support several modules: professionals registar, continual professional education module, new tehnology information module, association module.This web system could be used for any profession, but is specially described for the needs of ICT professionals human resources management.

Keywords : human resources management, web application, ICT profession   

Pages 1-13

INTERACTIVE EDUCATIONAL SOFTWARE FOR PRESCHOOL CHILDREN

WITH THE MAIN AIM TO PROVIDE THEM THE BASICS IN INFORMATICS

Dragica Radosav, Dijana Karuović

University of Novi Sad, The Faculty of Technical Sciences “Mihajlo Pupin”, Zrenjanin

Received: 25.05.08; Cited: 17.07.08

Abstract: This work presents the results of researches in the field preschool children’s needs when using the computer and in the field designing the software aimed specifically at them. At the Faculty “Mihajlo Pupin”, considering the Project “System of distance learning based on the Internet Technologies using the multimedia educational software” [1], it has been noticed that there is no unique methodology how to create software, which is specifically aimed at users’ age. Therefore, there has been conducted a research in order to systemize the criteria, which are the presumes of designing highly operational ORSs for the youngest population – the preschool children. One of the basic tasks in the concept of changing the educational system in Serbia requires the IT technologies. The aim of this work is to see advantages and disadvantages of IT usage in the preschool period, to present the projects nowadays and to point at the necessity of the right choice of ORS, as well as at the usage of a computer in a way, which leads to the informational literacy.

Key words: educational software, user interface, interaction between a child and a computer, IT knowledge

Pages 14-25

Synthetic Plant Growth Regulators: I. Toxicity in Vitro

M. Georgieva, I. Ivanov, G. Tz. Georgiev

Institute of Experimental Pathology and Parasitology, Bulgarian Academy of Sciences

Acad. G. Bonchev Str., Bldg. 25, 1113 Sofia, Bulgaria

Acad. M. Popov Institute of Plant Physiology, Bulgarian Academy of Sciences

Acad. G. Bonchev Str., Bldg. 21, 1113 Sofia, Bulgaria

Received: 25.05.08; Cited: 17.07.08

Abstract: Studies were conducted to assess the cytotoxicity of the five synthetic plant growth regulators (SPGRs) by means of 3T3 Neutral Red Uptake (NRU) In Vitro test, performed in cell cultures from the lines BALB/c 3T3 clone 31 mouse embryo cells and CHO (Chinese hamster ovary cells). The IC₅₀ (the concentration reducing cell viability by 50%) was calculated from the concentration-response and expressed as mg/ml. Correlation between oral LD₅₀ and IC₅₀ of SPGRs was established. The five preparations showed low levels of cytotoxicity in both cell lines in except the values estimated in CHO for Alar (0,002 mg/ml). In the both cell lines was estimated a very low toxicity for the regulator PIX (13,303 mg/ml and 8,91 mg/ml).

Chinese hamster ovary cell line was significantly more sensitive than BALB/c 3T3 cell line. These results allow us to recommendate CHO as a suitable test-system for in vitro estimation of cytotoxic effect of chemical substances.

Key words: synthetic plant growth regulators (SPGRs), continuous cell line, cell viability, in vitro cytotoxicity.

Pages 26-37

Research of vibrations acting the comparators Carriage

Arturas Kilikevichus, Vladas Vekteris

Vilnius Gediminas Technical University, Department of Machine building,

Basanaviciaus str. 28, Vilnius, Lithuania

Received: 28.07.08; Cited: 19.10.08

Abstract: Oscillations of the comparator, which is used for the dynamic calibration of long optical line scales, are analyzed in the paper. The accuracy of determination of the position of optical lines on the scale depends on the velocity of the carriage, which transports the microscope with a CCD camera in relation to the line scale. Oscillations influence the velocity equability, its value, and at the same time the error compo measuring. The base part of the comparator is acted upon by external excitations which come through the foundation and supports, also due to natural frequencies of the comparator set. It is shown in the work that vibration surroundings acting on the comparator have a random character and correspond to the criteria of the normal (Gauss) distribution. It is proved experimentally that preaching amplitudes of measured components of vertical and horizontal oscillations influence the stability of the carriage movement which causes the error of measuring.

Key words: comparator, dynamic calibration, vibration, carriage, measuring, calibrated scale.

Pages 38-55

Intensification of tranferring the Kazakhstan’s

high-congealed oil: Challenges and advances

Tayhan P. Maimakov*, Galina I. Boiko*, Yerengaip M. Shaihutdinov**,

Nina P. Lyubchenko*, Gulzhakhan Zh. Yeligbayeva**, Zhamal A. Konyrbayeva*,

Rashida F.Mukhamedova

*High education institute «UNAT», Republic of Kazakhstan, 050013 Almaty, Satpaeva str., 22-b

** Kazakh national technical university, Republic of Kazakhstan, 050013 Almaty, Satpaeva str., 22

Received: 28.07.08; Cited: 19.10.08

Abstract: It were investigated the rheological parameters of South-Turgay region waxy crude oils at presence of novel pour point depressant additive DP-43/2005. It has shown that additive improves pour point and rheological properties of crude oil mixture Kumkol-Akshabulak, inhibits wax deposition and can provide safe conditions of crude oil mixture transportation through pipeline at the cold season of year.

Key words: oil, temperature of fluidity loss, rheology, viscosity, oligomer depressor dopants

Pages 56-64

NICKEL AND COBALT-CONTAINING HETEROGENEOUS

CATALYSTS CARBON DIOXIDE CONVERSION OF METHANE

Emin A. Majidov, Natalya K. Andrushenko,

Rovshan B. Akhverdiev, Afina A. Aliyeva, Sara K. Faradjeva, Tarana S. Latifova

Azerbaijan National Academy of Sciences Institute of Petrochemical Processes,

Azerbaijan, Baku, AZ1025,  Khodjali ave. 30

Received: 28.08.08; Cited: 19.11.08

Abstract: The valent and coordination condition of nickel and cobalt ions in contents of catalysts carbon dioxide conversion of methane is investigated. At rather low concentration (5 % mas.), as a result of chemical processes the phase of surface mixed spinel NiAl₂O₄ was formed, and at big quantities (10 and 15 %) - along  with it surface phase of NiO was also formed. Processing of nickel-containing catalysts by methane results in practically complete reduction of Ni²⁺ nickel ions to Ni° (or) and to covering of surface with coke precipitations. In СН₄ mediums + air; СН₄ + СО₂ the oxidation-reduction processes Ni²⁺Ni° with shift of balance the right in case of processing the catalyst by mix СН₄ + СО₂ proceed to. In this case on a surface of catalysts oxidizing [Ni²⁺ (T_d and O_h) in structure NiAl₂O₄] and reduced  [Nio (or) ] forms of nickel coexist.

Processing cobalt-containing catalysts in the reactive medium practically does not affect a condition of ions Со²⁺ (Т_d) and Со²⁺ (О_h). On a surface of cobalt oxide catalysts within the limits of concentration of cobalt 5 and 10 % mas., a phase normal spinel and CoAl₂O₄ and isolated surface ions Со²⁺ (O_h) are available

Key words: carbon dioxide, methane, conversion

Pages 65-76

WAYS OF RISING OF EFFICIENCY OF N-PARAFFIN DEHYDROGENATION

REACTOR BLOCK FUNCTIONING WITH USE OF TECHNOLOGICAL MODELLING SYSTEM

Anatoly Kravtsov V., Emily Ivanchina D., Elena Ivashkina N., Egor Yuriev М.,

Irena Shnidorova O.

Tomsk Polytechnic University, 634050,  Lenin Street, 30, Tomsk, Russia

Received: 28.09.08; Cited: 19.11.08

Abstract: In this article the applied using of technological modelling system of dehydrogenation process of  n-paraffins has been examined. The products of this process are monoolefines, which are used to obtain synthetic detergents. In the basis of this system a formalized mechanism of hydrocarbons transformation on the Pt-catalyst surface lies. Using of the developed system allows to prolongate the catalyst durability due to optimisation of its usage mode and also to model different variants of plant reconstruction. After preliminary research of temperature influence, raw materials consumption and volume on the process efficiency, it was ascertained that one of the possible variants is switch into two-reactor scheme (it means using the second reserve reactor of paraffins dehydrogenation). Also the conditions of continuous functioning of two parallelly working reactors have been considered. Conformity of proposed variants of plant reconstruction has been economically proved. This helps to raise efficiency of synthetic detergents obtaining.

Key words: mathematical modelling, dehydrogenation, reactor, catalyst, n-paraffin, n-olefines, efficiencyь,model, account

Pages 77-98

contributions regards the optimization of the hydraulic

systems for the reduction of energy consumption

Aurora C. Alexandrescu., Adina Simona O. Alexandrescu and Adrian Constantin, O. Alexandrescu

National Centre of Management Programmes, Technical University Gheorghe Asachi,

 Boulevard Dumitru Mangeron, No 67, 700050, Iasi, Romania,

Received: 28.09.08; Cited: 19.11.08

Abstract: The paper tackles the working of a irrigation plot with pipes under pressure on the basis of analyse of the connections between the constructive and working parameters, of the energy included in fitting out and of the operative consumption of energy (for water’s pumping, the remove wet equipment, the maintenance and exploitation of working) on rate-setting duration of existence of system.

The optimisation problem matters in the minimization of the specific consumption total average annual of energy demanded by irrigation through pipes under pressure of the complex climate – ground – plant. The needs of water is expressed through a average norm of irrigation M (mm/year), a specific debit of top q_d (l/s) and the static features of the annual variation and seasonal q/q_d, respectively (q/q_d)², in the conditions of the respect of the functional restrictions and of the limitation introduced by the technique of irrigation available.

The results of researches serve at the optimum designing of point of view energetic of the fittings out for irrigations in the zones with plan relief and in steep, the methods proposed allow a reduction with 20 ¸ 25 % of the consumption of energy generated by the irrigation through aspersion.

Key words: Pumping station, pipe network, economic efficiency, optimization, piezometer slope.

Pages 99-112

TRANSFERING and ADOPTATION of TECHNOLOGY to ACADEMIC ORGANIZATIONS:

CASE STUDY of KADIR HAS UNIVERSITY

Danaci Sakalar, Tugba

Kadir Has University, Faculty of Engineering, Industrial Engineering Department

Received: 15.09.08; Cited: 23.11.08

Abstract:  To be successful and competitive in the globalizing and rapidly changing world, most organizations are under pressure to effectively either develop or transfer technology. Technology transfer is a managed process of conveying a technology from a point of origin to its potential users. Transferring technology from universities to private sectors results in economic development and welfare improvement of the issued country. But, for a sustainable development, the universities should also transfer the available technology until they can be enough sufficient to develop it internally. Especially, new-established universities like the foundation those recently established in Turkey need to transfer the technology in order to become a potential technology developer as being other old and long-established ones. Therefore, this paper represents a case study of how to transfer and adopt the technology from a private sector to Kadir Has University, as a newly established private university, which should be rational on investment decisions. This study is a work of technology strategy development through positioning-based approach, and includes three sections as follows: in the first part, a SWOT analysis, the issues of technology scanning are presented, in the second part, the selection of technology transfer method is included, in the final part, the criterion are determined to have a successful technology transfer process.

Key words: Technology strategy development, positioning-based approach, technology transfer,  SWOT analysis

Pages 113-129

INTERREGIONAL TECHNOLOGY TRANSFER ON ADVANCED MATERIALS

AND RENEWABLE ENERGY SYSTEMS

Pavlos Agrianidis, Constantine David, Konstantinos Anthymidis

Department of Mechanical Engineering, Technological Educational Institute of Serres, GREECE

Monir Ekhrawat

Department of Mechanical Engineering, Aristotle University of Thessaloniki

Received: 15.09.08; Cited: 23.11.08

Abstract: Advanced materials are used in most industrial sectors and human activities and all developing and developed countries as well as international organizations e.g. United Nations have established work groups, which survey the national and global state and developments in the area of advanced materials trying to establish strategies on that crucial technology sector. These strategies are focused on research and technology activities including education and vocation training, as well as stimulus for the starting up of new industrial applications. To introduce such a concept in Greece and especially in Northern Greece, the Technological Education Institute of Serres has initiated an Interregional technology transfer project in this scientific field. This project includes most topics of advanced materials technology with emphasis on specific industrial applications (renewable energy systems). The project demonstrates the development of a prototype photovoltaic thermal system in terms of a new industrial product. The product development procedure consists of steps such as initial product design, materials selection and processing, prototype design and manufacturing, quality control, performance optimization, but also control of materials ecocompatibility according to the national trends of life cycle design and recycling techniques.

Key words: Interregional technology transfer, materials, renewable energy systems

Pages 130-139