ICETAS 2018: International conference on Engineering Technolog and Applied Sciences Congress

"ICETAS-2018 Conference Papers "

Pages   [1]
Effect of Different Drying Time on Lap Shear Performance and Solid Content of Sago Starch Adhesive onto Corrugated Paper [ ]


From this research, different formulation of the sago starch (SS) and polyvinyl alcohol (PVA) blend were analyzed for its drying time effect on lap shear performance. Drying time from 20 min to three hours were varied, in order to achieve optimum solid content and drying time. SS, PVA and additives were formulated at different ratios. Adhesion lap shear strength of each specimen were tested. The recommended drying time found for sago starch and PVA are between 1 hr to 3 hr. Structural changes were also followed using Fourier Transform Infra-Red (FTIR) technique. From the result of shear strength, the formulation of SS and PVA ratio 3:7 have highest strength ~ 4.145 MPa after 3 hours drying time. The strength is compared to formulation SS and PVA ratio 3:2 which have lowest lap shear strength ~ 1.844 MPa. Total solid content of SS and PVA ratio 5:5 is the highest content which is about 25% in contrast with SS to PVA 3:2 ratio which is about 17.38%. Optimum drying time selected to be consistent with fast drying and high solid content and lap shear strength is 40 minutes.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Highway Pavement Surface Icing And Traffic Safety[ ]


Due to the fact that highways are the most used transportation mode in our country and the weather conditions are hard during the winter season, various problems are encountered on the roads where terrestrial climate is seen and these problems threaten traffic safety. It poses significant risks especially in road sections such as tunnels, bridges and vertical kurve and also causes material loss accidents. The methods used in the struggle with icing are divided into two classes as active and passive methods. Passive methods are applied in two ways; chemical and physical. Chemical methods are the application of a variety of chemicals to the pavement surface with the aim of preventing and eliminating icing. These chemicals appear to cause some damage to environment, roads, metal parts of vehicles and traffic sign boards and do not seem to provide the desired performance. Physical methods are carried out by removing snow and ice from the coating surface by using work machines. Using this method, both equipment workforce and time losses are occurring. Hydronic heating systems, which are active methods, circulate a heated fluid through a pipe network located below the pavement layer to melt snow and ice that accumulate in the coating layer. By using geothermal spring waters, which are clean and inexpensive resources as heated liquids, it is aimed to be prevented without creating snow and ice without causing environmental damage, human health and financial loss. In this paper, the characteristics of anti-icing systems and hydronic anti-icing systems used in roads, what kind of materials are used in such systems and their contributions to traffic safety are mentioned.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Evaluation of the Elastic and Thermal Properties of WC/Fe-Ti Ceramic-Metal Composites Fabricated by Powder Metallurgy[ ]


Tungsten carbide (WC) is an attractive reinforcing material for iron and its alloys. This work was done to select a possible replacement for iron and titanium as a binder through a phase diagram approach using selected WC-X systems. Composite samples were produced from tungsten carbide, iron and titanium matrix powders by using a powder metallurgy. Prepared samples were sintered at the temperature of 1000 ºC under Ar shroud. The Young’s modulus (E) has been calculated with density and the ultrasonic velocity measured through ultrasonic pulse-echo method and immersion method. All ultrasonic velocity measurements were made in mold with the same length and diameter. The hot-disk method was used to measure the thermal conductivity. There is a steady increase in the relation between elastic modulus and thermal conductivity. In addition, as seen in the SEM images, it can be also said that increasing the volume fraction of WC particles favored the grain refinement, have a stable structure improved the hardness and strength, but decreased the ductility. The results have been compared with the literature.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Monte Carlo Calculated Stopping Power and Range of Alpha Particles in Water[ ]


Alpha particles have a wide range of industrial and medical applications. This study investigates stopping power and range of alpha particles in water medium using Monte Carlo simulations. A point source emitting mono-energetic pencil beam of alpha particles irradiatied a 1 cm radius water cylinder placed in vacuum. Disk-shaped thin detectors (r=0.1 cm) were placed inside the cylinder to obtain average absorbed dose and flux at different distances within the phantom. MCNP6 was used to yield average flux and absorbed dose in each detector cell to later compute the value of the stopping power for water at incoming alpha energy. The results obtained in this study are compared with the data from the NIST compilation.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Program Development For Energy Demand Forecasting And Its Application For A Site[ ]


Demand forecasting is defined as a prediction of the amount of electrical energy, peak power demand and number of customers made by marketing companies in order to make energy planning for the future by setting different scenarios at certain time intervals [1].Demand forecasting is analyzed in three different topics; short, medium and long term as terms. In the application stage of this study, short term demand forecasting is emphasized, and two different forecasting models are created based on the total load and the region by using artificial neural network method. Forecasting process was performed with these two different models. The results were compared and the failure rate of the models was tried to be reduced. In creation of the models, Artificial Neural Network method was used. As a result, the average failure rate of the model based on the total load was 7.04% while the average failure rate of the model based on regional load was 7.66% according to the randomly selected forecasting values for a week.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Radioactivity Determination in Soil Gas, Air and Marble Samples in Iscehisar Marble Quarry[ ]


This study aims on determining the radioactivity three different methods. Radon gas activity and and sodium iodide thallium detector respectively. Radon activity in air in the marble quarries was assessed with AlphaGUARD Radon Monitor. The mean radon activity in air and in the soil gas in the region was measured to be in the range of 9.98 Bq/L 9.91 Bq/m3 respectively. Mean specific activity for marble samples taken from the studied quarries was found to be 139.29, 38.40 and 35.28Bq/kg for 40K, 238U and 232Th, respectively. The measured results indicated that the radioactivity level for both the marble quarries and marble itself are safe.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Weldability of Optim700 MC-St37 Steel Pairby Plasma Transfer Arc (PTA) Welding Method[ ]


In this study, the weldability of OPTIM 700 MC and St37 steels with different properties by Plasma Transfer Arc Welding (PTA) was investigated. In the study, welding speeds of 0.15 m/min., and 90 A, 100 A, 110 A, and 120 A Ampere values were used. The strength of the joints was tested with tensile test. Microhardness measurements were performed in Vickers scale under aload of 500 g. Microstructure changes in the weld zone of Post-weld production parameters were investigated by optical microscope, SEM-EDX, and XRD analyses. From the metallurgical point of view, the highest level of welding qualities were observed in the sample 4 (120 A).

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Effect of Chemical etching on Linear Low Density Polyethylene (LLDPE) /Chitosan blend Film[ ]


Nowadays, waste natural polymer such as chitosan had created alternative material for food packaging as it is more safe and environmental friendly, cheap, biodegradation and have inherent biocompatibility properties. In this work, chitosanhad been employed and blended with Linear Low Density Polyethylene (LLDPE) with different composition via twin screw extrusion. Chitosan having antimicrobial properties had to be sandwiched to optimize antimicrobial properties as too low antimicrobial activity earlier were found forblended chitosan/LLDPE film. Surface treatment of LLDPE via acid chemical etching technique were performed. Effect of film surface by chemical etching were examined through morphological SEM analysis. Structural feature was analyzed with FTIR and surface adhesion were found to be enhanced with higher chemical etching concentration.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Characterization of Graphene Filled with Suistanable epoxidized Oil resin for Conductive Polymer Coating Applictaions[ ]


This study was aimed to characterise polymer conductive coatings by employing conductive additive such as graphene which is incorporated onto epoxidised oil resin. Solutions of polymer substrate of graphene with different percentages between 0.1 to 0.5% were incorporated with epoxidised oil as resin and cured with photoinitiator for the development of UV curable conductive coating. Resins are spin coated onto glass substrate through spin coating technique with spin rate between 250 and 500 rpm/min before undergoing UV light exposure. Characterization of cured coating via Fourier Transform Infrared (FTIR) showed the existence of carboxyl group of oil and graphene. Differential Scanning Analysis (DSC) exhibited cured resin with Tg between 129℃to 137℃. Small changes of cured resin Tg were observed upon increasing graphene percentages. Adhesion pull off test were highest for 5% graphene. For conductivity, all samples were found to have conductivity within 10-8Scm-1.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Encapsulation of Pomegranate Seed Oil in Beta- Cyclodextrin[ ]


Cyclodextrins (CD)s play an important role in innovative textile processing and the functionalization of textiles. In the textile industry CDs may have many applications such as: absorption of unpleasant odours; they can complex and release fragrances, using as skin-care-agents, bioactive substances and filters for adsorption of small pollutants from waste water. The uses of beta-CDs provide different opportunities for developing new innovative products and eco friendly textile processes which are of specific interest to the textile industry. Due to the anti-oxidant effect of pomegranate seed oil (PSO), in this study encapsulation of PSO by beta-CD was carried out and inclusion complexes were formed successfully. The formed compound was applied onto the textile substrate and both formulation and surface morphology of the substrates were discussed in this study.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Determination Of The Protective Effect Of The Shark Cartilage And The Shark Liver Oil (Slo) Against Formaldehyde And Dmh Application Causing To Cancer And Dna Damage On Genetic Bases[ ]


It is known that DMH, a potent strong carcinogen and formaldehyde (FA) cause to epithelial cell damage. It has been stated that cartilage can be used to treat malignancies and shark liver oils are very rich in 1-O-alkylglycerols with the ability to strengthen the immune system.80 rats have been classified as follows : 40 DMH Group: 4 ;control - 6 ; given DMH but not cured – 15; given DMH and cured with SC - 15; given DMH and cured with SLO 40 Formaldehite group : 4; control - 6;Given FA but not cured - 15 ; given FA and cured with SC -15 ; given FA and cured with SLO.The cartilage (SC) administration have a curative effect by increasing the activities of both Tnf-α and p53 genes, against to DMH application, reason of cancer formation and increasing of p53 genesin FA application, reason of lung damage. In both application; the SLO administration showed pronounced curative effect mainly in Tnf-α activity.Against to DMH application, reason of cancer formation; the cartilage (SC) was more effective via increasing the p53 gene activities. Liver oil (SLO) application has an better effect on mainly Tnf-α gene. SC showed better effect in p53 activity; and SLO was more effective on Tnf-α gene for lung damage treatment, caused by FA administration.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Evaluation of synergistic effect of Borax Decahydrate on flame retardancy of Polypropylene[ ]


In order to increase limiting oxygen index (LOI) value of PP, Borax Decahydrate (Na2B4O7.10H2O) was used as synergist for a flame retardant system consisting of ammonium polyphosphate (APP) and pentaerythritol (PER). Borax decahydrate at various weight fractions (1, 2 and 4%) was mixed with APP and PER and compounded with PP by using twin screw extruder. 4 wt% Borax decahydrate addition into mixture increased LOI value from 35 to 59%. Tensile and flexural properties and impact strengths (izod/charpy notched) of PP composites were obtained. Melt flow index, density, and coefficient of thermal expansion of PP and its compounds were also determined. From conducted study, it can be reported that borax decahydrate can be effectively used to increase the LOI value of PP-based composites containing APP and PER.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Teeth of Implant Production And Characteristics By Using Ti-Cr-Co Powders[ ]


As it is known, a material must be biocompatible in order to be classified as biomaterial. In order for materials to be biocompatible, they must pass in vivo and in vitro tests. Mechanical and chemical tests such as abrasion, compression, tensile and corrosion resistance as well as body-material compatibility and behavior of the material within the body are included in these tests. In this study, in vivo and in vitro tests of biocompatibility tests were theoretically examined.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Double Axis Solar Tracking System Design and Implementation[ ]


The designed system consists of mechanical system and electronic control circuit. Due to the large panel size of the system, the DC motors were used and the slowest motor speed settings were chosen. By applying a PWM signal, the speed of the motors is optimized. In addition, using the limit switches, the movement range of the panel is limited for undesired situations. The system was placed at Afyonkocatepe University ANS Campus after the design phase. The system follows the sun in a certain time period and generates energy at a constant angle by deactivating the control mechanism in a certain time period. In these two cases, the amount of energy obtained from the system is compared. It has been observed that when using the power system, it generates 25% more energy than the fixed system. In addition, the solar tracking system is compared with the fixed panel systems in terms of cost. As a result, energy and cost data were combined and the economic analysis of the system was carried out.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Determination of Food Colorings in Pharmaceutical Preparations and Food Additives by a Validated HPLC Method[ ]


Synthetic azo dyestuffs are preferred in many products today because synthetic dyes are more resistant to environmental factors and their production is relatively easy and cheap. Despite their commercial advantages, they have very important toxicological risks to its consumers. Tartrazine (E102), one of the most commonly used yellow food dye, is a synthetic lemon yellow azo dye used as a food coloring. Sunset yellow (E110) a petroleum-derived orange azo dye, also known as yellow dye #6, is used to give foods an orange-yellow color. Both food dyes have serious toxicological risks, that are mutagenic and carcinogenic. For this reason, it is very important that the measurement of quantities in food products and pharmaceutical preparations by a fast, reliable and sensitive method. The aim of this study, developed and also validated a new high-performance liquid chromatography (HPLC) method equipped with diode array detector (DAD) which was simultaneous determination for tartrazine and sunset yellow in pharmaceutical preparations and food supplements.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DsPic33f Series Microprocessor Based Single- Phase Inverter Design and Implementation[ ]


The majority of the technological devices used with the development of the technology use the network voltage (220V-50Hz). Conversion must be done to obtain the mains voltage from the DC storage voltage sources. This conversion can be done by inverter. In this study, microprocessor-based inverter design is considered to transform the voltage from DC 12V battery to 50 Hz, 220V AC. The inverter circuit is designed as two different cards in the form of power and control circuits. Thanks to the filtering circuit connected to the output of the transformer on the power card, a smooth signal with a frequency of 50 Hz is obtained. The PWM signals used for sinusoidal generation of the signal are obtained by software based on the values in the previously created sinusoidal values table. Two separate alternating PWM signals were taken with increasing and decreasing order of table. As a result of applying these signals to MOSFET switching elements, sine wave signal is generated. The voltage value of the obtained sinus signal is amplified using the transformer. Filtering was performed to remove the noise generated in the raised sinusoidal signal and 200-220V pure sine signal was obtained.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Effect of Electrodes Coated with Different Materials by Electrospark Method on the Resistance Spot Weld Quality[ ]


The DP600 dual phase steel is a member of the Advanced High Strength Steel (AHSS) group, which is widely used in the automotive industry. The lightweight for fuel saving and high strength for resistance to vehicle safety are reason for preference of these steels in the body parts of vehicles. DP sheets are generally combined with resistance spot welding methods. The deformation occurs at the electrode tip due to the high temperatures reached at the surface of the electrodes. Furthermore, the application of a certain pressure to the electrode through joining processes is also responsible for deformation on the electrode tip. For this purpose, the coating can apply to extend the lifetime of the Cu-Cr-Zr electrodes. In this study, two different coating materials, TiC-Co and CrNi, were deposited on the surfaces of Cu-Cr-Zr electrodes by electrospark method. Thus, the effect of the coating on the electrodes is investigated and the weld quality of the DP600 steel spot welded couples is also evaluated.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Corrugated Paper Adhesive Strength and Solid Content Using Different Formulation of Starchtion of Polyvinyl Alcohol (PVOH)[ ]


In this research, starch adhesives were prepared using different formulation of sago starch(SS) and PVOH for corrugated paper board. Starch adhesive had long been use for adhesion of paper box but the strength of these boxes are weak and may vary according to type of starch, pres-ence of additives and their solid content. An adhesive is produce by mixing sago starch of various composition with polyvinylalcohol (PVOH). The adhe-sive is applied to the paper boxes and the sample was dried at room temperature. Characterizations of the specimen were observed via Fourier Trans-form Infrared Spectroscopy (FTIR) , Lap Shear Strength and Total Solid Content. From the result, PVOH helps the adhesive to enhance its mechanical properties. Higher content of PVOH formulation had increased the lap shear strength of the adhesive and cohesive strength of SS/ PVOH adhesive is stronger than cohesion strength of corrugated paper. Through starch modification, the mechanical properties and solid content are being control to about 24% and drying time are shorter for higher PVOH content.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Thermal characterization of blown LLDPE/Chitosan blend film and Coated blend film[ ]


Waste natural polymer such as chitosan can be the future material in food packaging as it is biodegradable and have antimicrobial properties. In this work, melt compounding of Chitosan had been blended in this work with Linear Low Density Polyethylene (LLDPE) using twin screw compounder for use in film blown extrusion. Different composition of Chitosan and LLDPE were fabricated into films. Thermal characterization of chitosan/ LLDPE were performed with Differential Scanning Calorimeter (DSC) . Crystallinity of the films, their compatibility and melt temperature for each blends showed lower values with higher chitosan composition and Thermal Gravimetric .

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[1]