TOJSAT - Volume 6 - Issue 1 - January 2016

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AN APPLICATION OF ENVIRONMENTAL ECONOMIC DISPATCH USING GENETIC ALGORITHM

Özge Pınar ARSLAN, Yağmur ARIKAN, Ertuğrul ÇAM, İbrahim EKE

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Abstract:

In the economic load dispatch, power plants are operated at minimum cost, but
environmental pollution caused by fossil-fueled electric power plants is not considered.
Therefore, new solution suggestions have come up due to the growing environmental problems
in recent years. One of these suggestions is environmental economic load dispatch which aims
to both operations of plants at minimum cost and trying to minimize the amount of emissions.
In this study, 6-generator system with three load demands 500, 700 and 900 MW is tested to
solve environmental economic load dispatch problem. Genetic algorithm from heuristic
optimization methods is preferred for this problem. The results which transmission losses are
considered are compared with the other studies in the literature. These results show the
effectiveness and superiority of the method over economy and reduction of the emission.

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ANALYZING EFFICIENCIES AND TOTAL FACTOR PRODUCTIVITIES OF STAR ALLIANCE MEMBER AIRLINES

Yağmur ÖZ, Can Deniz KÖKSAL

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Comparing the efficiency levels and productivities of domestic and international
airline companies is an active research area in services sector and has lots of interests in business
administration field. In this study, Data Envelopment Analysis and Total Factor Productivity
Analysis are used to compare the efficiencies and productivities of Star Alliance member
international airline companies. Eight variables, including both inputs and outputs named as
Number of Annual Passengers, Daily Departures, Number of Countries Served, Number of
Airports Served, Revenue Passenger (Km), Sales Revenue ($), Number of Employees and Fleet
of 26 airline companies are taken place in analysis for the years 2013 and 2014. Because of
price differences in access the resources of services and goods that the companies used, the
Variable Returns to Scale Method of Data Envelopment Analysis is used instead of Constant
Returns to Scale Method to figure out efficiencies in years. Results show that there are
differences in efficiencies and productivities of airline companies by the means of using their
inputs to produce outputs while some of them are wasting their resource and some others are
not.

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DESIGNING AND IMPLEMENTATION OF AN EXPERT SYSTEM TO BE USED TO DETERMINE THE BODY SIZE

Hakan YÜKSEL, Mehmet DAYIK, Oğuz ÇOLAK

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In globalizing world, for available sectors finding themselves a place is getting harder
economically and commercially. This situation leads them to follow the latest technology to go
ahead in common market. One of the latest technologies in textile field is trying on clothes for
people in virtual environment. Here the biggest problem is to measuring and determining the
size of the body. The aim of this study is to develop decision support system software to
determine the most suitable body size. With this study, it is enabled to give easier and quicker
result for the expert system.

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FRENCH MANDATORY EDUCATION: THE CASE OF SANJAK (HATAY) (1920-1939)

Yusuf KODAZ

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Although Hatay existed in National Pact borders, it was kept out of Turkish borders
with the Ankara Treaty signed on October 20, 1921 in order to stop the armed conflict with
France under extraordinary conditions of Independence War. Yet, Ankara Government inserted
provisions into this treaty in order that the Turks in the district could pursue their national
existence. These provisions were preserved in the same way in Lausanne Peace Treaty and
other treaties signed between France and Turkey. The case of Syria, mandated by France in The
San Remo Conference, was also approved by The Nations League on July 24, 1922. So, Hatay
was mandated by France along with Syria.
In the period of French Mandate Government, every community was educated in its own
language. Formal schools were opened for non-Turkish groups in Hatay and the opening of
private schools was supported. While the children belonging to these groups were formerly
educated in the Turkish language, in the newly opened schools the Turkish language was not
included at all. Moreover, as in Syria, France implemented educational policies in Hatay which
would raise mandate government-dependent people.

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INVESTIGATION OF BEHAVIOR OF STRUCTURES ACCORDING TO DIFFERENT LOCAL SITE CLASSES FOR L TYPE REINFORCED CONCRETE FRAME BUILDING HAVING A1 AND A3 IRREGULARITIES

Rıfat SEZER, Ceyhun AKSOYLU, Nail KARA

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In this study, a series of investigation was carried out considering Z1, Z2,
Z3 and Z4 type soils stated in Turkish Earthquake Code 2007 (TEC-2007) for the
reinforced concrete frame model having torsional irregularity (A1) and plan
irregularities (A3) with high ductility level of L type central floor load-bearing
system designed in accordance to TEC-2007. The investigated structure is an 8-floor
school building having the building importance factor of I = 1.4 and existing in 1st
degree Seismic Zone. The earthquake analyses were performed with SAP2000
v.16.1.1. computer program by considering the Equivalent Seismic Load Method
(ESLM) and Mode Combinaion Method (MCM). Base shear force, torsional force,
overturning moment, effective mass participation ratio, building period, floor
displacement and effective relative floor projection were calculated considering the
commonly used calculation methods and the boundary conditions of TEC-2007 for
different soil classes in terms of struct

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INVESTIGATION OF THE EFFECTS OF CONVENTIONAL AND WIPER COATED CARBIDE TOOLS WITH DRY CUTTING ON CUTTING FORCES, SURFACE ROUGHNESS, AND MATERIAL HARDNEES IN TURNING 17-4 PH STAINLESS STEEL

Mustafa AY, Gültekin BASMACI

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Abstract:

In this study, an experimental investigation on cutting forces, surface
roughness and the hardness of material after machining in turning of 17-4 PH stainless
steel using wiper and conventional insert cutting tools with dry cutting condition were
presented. The influences of feed rate, depth of cut, and corner radius on surface
roughness, cutting force and material hardnesswere examined. In order to optimize
the turning process, Taguchi optimization method has been used. The influence of
each parameter on obtained results was determined by using analysis of variance
(ANOVA). The relationship between dependent parameters and independent
parameters were modeled by Regression analysis. The optimal machinability of 17-4
PH stainless steel with coated carbide insert was successfully determined in this study.

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MACWILLIAMS IDENTITIES OF LINEAR CODES OVER THE RING

Mehmet ÖZEN and Fatma Zehra UZEKMEK

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Linear codes are considered over the ring. The Lee weight enumerators, the complete weight enumerators and the symmetrized weight enumerators for the linear codes
over the ring are defined and Gray map  from 4 R is constructed.
Then, MacWilliams identities for these weight enumerators are proved.

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PROCESS IMPROVEMENT AN APPLICATION AT GAZİOSMANPAŞA UNIVERSITY

Münevver Çiçekdağı, Kadir Ardıç

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Abstract:

The importance society, which well analyzes its past and wants its future with the
better living standards, gives to quality increased as much as the importance it gives to
education that a business provides a competitive advantage is very closely related to at what
degree the scientific methods are applied in it, because these scientific methods emerged from
the specialists analyzing the concept quality and the ways of increasing quality coming into
their faces as a result of their discussing on the customer expectations over years. In many
businesses producing goods and services, in order to reach the competitive conditions, although
it is seen that process improvement techniques similar to this are utilized, it is a disputable issue
at what level the applicability of this information taught in high education institutes is. In this
study, it is aimed that it is seen that the statistical process improvement techniques, mentioned
in the theory, are easily applicable at the application point and that its results will serve the
increase of quality, even if at the long term. In the study, examining the basic statistical process
control techniques with a group consisting of the students of Faculty of Economic and
Administrative, where it is seen that there
are some deficiencies, were discussed via the technique of brain storming and, for the processes
selected, constituting the fishbone diagrams, the sub-causes were descended. Then, the main
process enabling to improve was selected. This process was examined by means of workflow
charts and it was studied what will be able to do about improvement and the new flow schemes
were drawn. Thanks to this, it became possible to take the quality under control, provide high
quality, increase productivity, increase customer satisfaction, and reduce time loss.

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RAISING SOCIALLY RESPONSIBLE INDIVIDUALS: MONTESSORI EDUCATION MODEL

Figen GÜLEŞ

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To fulfill the social responsibility of the person or institution is directly related
with to be trained as an individual with responsibility awareness. Here is education that will
make the biggest impact. Although there are many training methods that contribute to the
formation and development of responsibility cosnciousness, Montessori education is an
educational model that stands out in the formation of this consciousness. This paper is a
literature review which aims to describe the understanding of Montessori education on
growing socially responsible individuals. The paper draws attention the important role of
Montessori education model in creating social responsibility consciousness on people.

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STRATEGIC MANAGEMENT GUIDANCE IN HEALTH INSTITUTIONS MANAGEMENT: DETERMINATION OF MISSIONVISION- STRATEGY SELCUK UNIVERSITY MEDICAL FACULTY HOSPITAL SAMPLE

Hakkı GÖKBEL, Hasan Kürşat GÜLEŞ, Zeynep ERGEN IŞIKLAR, Tuğba ŞENER

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Abstract:

As the nature of the services they offer and areas in which they operate health care
institutions are always in the process of change. Especially with the impact of technological
advances, new techniques are constantly emerging in health care presentation, in parallel to
innovation in health care change is also becoming necessary in the way of health care
management. On the other hand today, research conducted in hospitals has reached a holistic
and administrative size with the understanding that the development of institutions are
connected with improvements not only in a sub-unit in all subunits in an integrated way. For a
holistic assessment and progress accurate determination of mission-vision statement adopted
by all stakeholders and strategies which will serve this purpose is very important.
In this study 1 mission, vision and core strategies have been identified for the strategic
management process planning of Selcuk University Medical Faculty Hospital. In this context
at first, keywords which are intended to be absolute in the hospital's mission and vision are
determined by the focus group discussions with managers and content analysis method.
Secondly main strategies that will shape the hospital’s future have been identified in the
balanced scorecard concept. The focus group interviews and content analysis results are
summarized and made some evaluations and suggestions.

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THE INVESTIGATION OF THE RELATION BETWEEN NDVI IMAGE AND FOREST MANAGEMENT-SITE INDEX DATA, THE CASE OF BARTIN REGION OF FORESTRY, TURKEY

Ayhan Atesoglu, Metin Tunay, Hüseyin Simsek

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Abstract:

Site index is defined as the power of product and service production of somewhere.
However, a forested land has actual and potential efficiency power. In the application, it is the
actual site index we have determined according to several criteria. Actual situation is far from
reflecting the real efficiency. The stand could have been affected negatively from various
factors. The common structure seen in Turkey forests is like that. When the real situation is
demanded, it is necessary to identify the potential productivity. Within the scope of site index
term, site indicators and indexes for productive stands have been determined and accepted. We
have sufficient information about these. However, the subject of making disordered stands and
clearings is site index hasn’t been clarified. The site index of the areas in inventory studies
increasing the cost are assigned using age-length data of the trees. However, this method does
not provide sufficient accuracy for someone examining the area in separation of the site classes.
Inferences have been made related to actual and potential site index by comparing NDVI images
through satellite image data for the study area of which site index maps have been decided in
the study and the relations have been searched. Actual and potential site index thematic maps
have been formed for the sample study area through NDVI image data as the final outcome.

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THE ISSUE OF COSTS IN TEACHING ECONOMIC COURSES IN INFORMATICS

Mária Ďurišová, Alžbeta Kucharčíková

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Abstract:

The teaching process involves a content and procedural aspect at every level of
education. The content of higher education in study programme of Informatics should reflect
practical requirements. The graduate will be applied to the labour market, if s/he has knowledge
of several disciplines and the ability to view the solution to the problems in the enterprise in
terms of technology and economy as well. The costs are the basic economic category, along
with revenues and economic result. The article gives reasons for the justification of the
incorporation of the costs to the content of education within economic courses in Informatics.
The article also points to the need to maintain dynamics in teaching, even though the prevailing
form of teaching in higher education – lecture – is based on the description and explanation.
The dynamics can be achieved using a combination of changing work methods, namely
lectures, scenarios, discussion, question brainstorming, activating exercises, etc. applied to the
issue of costs.

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USE OF PARTICIPATORY METHODS IN TEACHING AT THE UNIVERSITY

Alžbeta Kucharčíková, Emese Tokarčíková

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Abstract:

The methods used represent an important tool for ensuring the educational process.
The selection of appropriate methods is determined by the aim of the subject. However, the use
of a suitable combination of mutual educational methods should be conditional on the
individual needs of students and teachers, social needs and trends. The selection should respond
to the current global trends in technical, economic, and educational research and development.
The implementation of appropriate methods is determined by various factors. It is, for example,
the number of students in one group, their present and desired level of knowledge, skills,
motivation to learn, functional position. The level of expertise and experience of teachers and
spatial capabilities are also important. The aim of the article is to show how it is possible to
increase the efficiency and attractiveness of the subject at university using participatory
methods.

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WASTEWATER TREATMENT BY ELECTRODIALYSIS SYSTEM AND FOULING PROBLEMS

Elif OZTEKIN, Sureyya ALTIN

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Abstract:

of drinking water from water bodies and treatment of industrial effluents (Ruiz and
et al., 2007). ED system contains ion exchange membranes and ions are transported through
ion selective membranes from one solution to another under the influence of electrical potential
difference used as a driving force. ED has been widely used in the desalination process and
recovery of useful matters from effluents. The performance of ED, depends on the operating
conditions and device structures such as ion content of raw water, current density, flow rate,
membrane properties, feed concentration, geometry of cell compartments (Chang and et al.,
2009, Mohammadi and et al., 2004).
The efficiency of ED systems consist in a large part on the properties of the ion exchange
membranes. Fouling of ion exchange membranes is one of the common problems in ED
processes (Lee and et al., 2009, Ruiz and et al., 2007). Fouling is basically caused by the
precipitation of foulants such as organics, colloids and biomass on the membrane surface or
inside the membrane and fouling problem reduces the transport of ions. The fouling problems
are occasion to increase membrane resistance, loss in selectivity of the membranes and affect
negatively to membrane performance (Lee and et al., 2002, Lindstrand and et al., 2000a,
Lindstrand and et al., 2000b).
Membrane fouling leads to high energy consumption and poor separation efficiency. Therefore
some methods such as pretreatment of the feed solution, turbulence in the compartments, zeta
potential control, pH and flow rate optimization, modification of the membrane properties and
pulsed voltage have been studied to reduce fouling in ED systems. Also some reducing methods
such as chemical methods require additional chemicals, more energy or instruments and those
requirements increase the operation and investment cost (Chang and et al., 2009, Lee and et al.,
2002, Park and et al., 2003). The fouling problem has been disqualified also by electrodialysis
reversal systems EDR. EDR is similar to ED but the direction of ion flow is reversed
periodically to break fouling progress by reversing the polarity of the applied electric current.
This process is not use only for the removal of fouling but also for removing salts in desalination
systems. EDR does not require additional chemicals and it increases membrane life (Bouhidel
and Rumeau, 2004, Strathmann, 2010).
Fouling of membranes is one of the major problems in ED systems. For this reason there is a
need to understand the fouling factors and fouling formation. This study includes brief
introduction about ED systems, a literature review of the different kinds of fouling mechanisms,
fouling mitigation techniques, cleaning methods to enhance the ED efficiency and advantages
/disadvantages of those cleaning methods. This paper concludes with an outlook to future ED
system studies.

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