bluuebunny/crossref_metadata_2025 huggingface dataset:
Perspektif Hukum Mengenai Penyalahgunaan Data Pribadi Pada Sistem Informasi Manajeman
Authors: Hapsah Pahira Siti , Rinaldy Rio , Lativah Evi
Published: July 2023

Sistem informasi manajemen merupakan serangkaian sub-sistem yang berisi data informasi penting berkaitan dengan produktivitas organisasi, namun sekarang ini banyak terjadi penyalahgunaan data. Dengan demikian, pentingnya pengetahuan mengenai hukum mengenai penyalahgunaan data pribadi agar dapat menuntut hak dan mengetahui upaya penanggulangannya jika kejadian tidak diinginkan terjadi. Penelitian ini bertujuan untuk mengetahui perspektif hukum mengenai penyalahgunaan sistem informasi manajemen. Penelitian ini menggunakan tipe penelitian hukum normatif merupakan penelitian hukum doktrinal, juga disebut sebagai penelitian perpustakaan dokumen atau studi dokumen yang dimanfaatkan pada penelitian kualitatif dan dapat diartikan sebagai teknik pengumpulan data melalui bahan-bahan yang tertulis yang di terbitkan oleh lembaga yang menjadi objek penelitian. Hasil penelitian menunjukkan bahwa dalam perspektif hukum, penyalahgunaan data pribadi pada sistem informasi manajemen menjadi perhatian penting. Diperlukan undang-undang khusus yang mengatur perlindungan data pribadi secara terintegrasi untuk melindungi masyarakat dari penyalahgunaan dan tindakan kejahatan terkait data pribadi. Pendekatan hukum, security teknologi, dan sosial budaya etika menjadi upaya yang penting dalam penanggulangan penyalahgunaan sistem informasi manajemen guna meminimalisir risiko penyalahgunaan data dan informasi perusahaan.
Philosophical practice: Interdisciplinary links with other fields
Authors: Hategan Vasile
Published: July 2023

The paper includes an interdisciplinary approach to philosophy, which can develop interdisciplinary links with other fields, which are carried out through current philosophical practices, manifested mainly in the form of philosophical counseling. Some of the areas in which these connections have been identified are presented, namely the educational field, life sciences and environmental sciences, interferences with the spiritual or theological field, as well as economics and business, materialized through organizational consulting and ethics applied to organizations and institutions. The conclusion is one of supporting and promoting these practices, which can be further researched and developed on multiple levels, as well as the implementation of a new specialization, in the form of philosophical counseling, as a practice for persons, organizations and communities.
Aspects of practicing philosophical counselling with teams in corporate environment
Authors: Corin Camelia
Published: July 2023

This paper is a summary of my practical research regarding to the particularities of applying Philosophical Counselling in developing high performing teams in corporate environment. Considering that most of the employees from corporate environment, at least in Romania, are not yet familiar with this new domain, the research is focused to investigate the possibility of obtaining practical results in developing high performing teams and to highlight the value added of practicing Philosophical counselling in corporate environment.
The P4C approach as a promoter of dialogical creative thinking based on the teachers' perception
Authors: Florin Lobont Mahmoud Zoabi /
Published: July 2023

The philosophy for children (P4C) approach is an educational movement that has developed over the years to become a substantial movement with great influence in the educational fields and in many educational systems in the world and is a pedagogical basis in these systems for both students and adults. A central goal of this movement is the advancement of the students' thinking, centered on the creative, critical, cooperative, and caring types of thinking in order to prepare them to be successful citizens in the future community life in the rapidly developing world. At the same time, the importance of creative thinking increased quickly over the years, and soon occupied an essential place in various areas of life. Within all varieties of philosophy for, or with children, the vehicle to their specific forms of thinking is the community of dialogical inquiry, a tight-knit group of likeminded co-philosophers bound together by philosophical friendship whose essence is represented by the communitarian element. Because of the great and increasing importance of creative thinking in the educational field, a comprehensive study was carried out that examined the perception of science and technology teachers in the Arab elementary schools in Israel of seven of the central dimensions of creative thinking, with the teachers' perception of the factors that foster creative thinking at the center. Hence, examining the teachers' perception will form the basis for planning and carrying out any move required to advance the various educational goals. 313 teachers participated in the study who answered a questionnaire that was prepared and validated by content experts, went through a pilot, and was found to be very reliable so that it constitutes a solid research base on which to base findings and conclusions. A key conclusion arising from the part of the questionnaire with the 12 statements that examined the teachers' perception of the factors that foster creative thinking is that significant and many changes are required in the education systems, educational policies, curricula, methods, tools, and the teaching, learning and assessment environments to promote creative thinking. This article briefly describes the research process carried out for the purpose of examining the teachers' perception of the factors that foster students' creative thinking, presents the main findings and conclusions, and mainly discusses in detail how the Philosophy for Children (P4C) approach can be a significant way that enables the promotion of students' creative thinking based on the research findings and conclusions of examining the teachers' perception of the factors that foster students' creative thinking.
Entropy generation of heat and mass transfer of humid-air inside an open cavity
Authors: Tounsi Chati , Tayeb Naas Toufik , Abdelkader Rouibah , Kouider Rahmani
Published: July 2023

In a lot of systems, mixed convection is commonly used for thermal control because it is inexpensive, dependable, and easy to maintain. This method is used in various applications such as aircraft electronic equipment, heat exchangers, turbomachinery, and nuclear reactors. A numerical study has been conducted on natural convection in an inclined open cavity that is heated by a wall heater. The momentum and energy equations are solved using the finite volume method in the form of stream function-vorticity. Only the right and left walls have a constant temperature, while the remaining parts are adiabatic. The inclination angle range covers an entire revolution. The validity of the method has been confirmed for a vertical cavity. A power law dependence of the Nusselt number on the Rayleigh number is provided, where the coefficient and exponent are dependent on the inclination angle. It was observed that as the inclination angle increases or decreases, the entropy generation augments.
Heat and mass transfer efficiency in the T-Shaped geometry: Entropy generation analysis
Authors: Mahammedi A. , Naas T. T. , Rahmani K.
Published: July 2023

Thermodynamic analysis of energy efficiency, especially those utilizing the second law ofthermodynamics, is focus of scientific inquiry, particularly given the interest in the efficient use of heatedenergy sources. In this work, we characterize the geometry in terms of entropy generation witch due tothe heat transfer and fluid friction as function of generalized Reynolds number under the effects ofdifferent inlet temperatures.This work has been performed for the important parameters in the following ranges: generalizedReynolds number (Reg = 1 to 60). As generalized Reynolds number increases, the entropy generation dueto heat transfers decreases, which reveal that the effect of the generalized Reynolds number on heattransfer performance is substantial. These results verify that the T-shaped channel can effectively enhancethe heat transfer performance for all cases. Overall, the entropy generation and synergy angle aresignificant characteristics to consider when building micromixers for thermal efficiency and misciblefluid mixing.
Predicting Interfacial Failure in Laminate Composite by using the Finite Element Method (FEM) : A Cohesive Zone Modeling Approach for Delamination
Authors: RABOUH Mustapha , BENKHECHIBA Abdelfattah Elhadj , ZOUGGAR Kamel , GUERRAİCHE Khelifa , HACHI Dahmane , HACHI Brahim Elkhalil
Published: July 2023

This study explores the interfacial failure modes of laminate composite, focusing ondelamination and debonding. To simulate these failures, a cohesive zone model (CZM) is employed, witha key component being the traction-separation law that characterizes softening near the delamination tip.The study demonstrates the modeling of debonding using the COMSOL® 5.6 software based on theFinite Element Method (FEM) decohesion model. The CZM's effectiveness in predicting mixed-modesoftening and delamination propagation is showcased through a model of mixed-mode bending in acomposite beam. By subjecting the beam to various loading conditions, the CZM accurately predictssoftening behavior and delamination progression. This research highlights the CZM's value inunderstanding and predicting interfacial failure, enabling improved design and structural integrity oflaminate structures.
Use of Cactus and Succulents in Vertical Gardens
Authors: ÇAKIR Mert
Published: July 2023

A vertical garden is a type of garden created by arranging plants on a vertical surface. It is often used for growing plants on vertical surfaces such as walls, fences, buildings, balconies and terraces in cities with limited garden space. The plants are planted in custom made vertical garden panels or containers and the roots of the plants are placed in a special soil mix in the panel. Special systems can be placed behind the panels for irrigation and fertilization. Vertical gardens provide a suitable environment for many plant species. In such gardens, flowers, herbs, shrubs, vegetables and even trees can be grown. In this paper, cactus and succulents that can be used in vertical gardens will be evaluated.
Calculation of Second Virial Coefficient of DNA
Authors: Mamedov Bahtiyar Akber , Somuncu Elif , Karatas Ebru
Published: July 2023

In this work, a new calculate method has been presented to calculate second virial coefficient with structure factor. The second virial coefficient for DNA have been defined using the calculated structure factor and the programmed fitting technique of Mathematica Software 7.0. The obtained results have been compared with theoretical data and shown in good agreement with literature.
An Investigation of Organic Rankine Cycle (ORC) System Application for Energy Efficiency of Smart Agriculture
Authors: Boydak Ozlem
Published: July 2023

Organic rankine cycle (ORC) system application on smart agriculture is rather energy efficient in terms of waste heat recovery supplied by ORC. The recovered waste heat, such as from agricultural wastes, changes into the electrical energy produced by the generator of ORC cycle. This energy efficiency supplied by ORC system is crucial for smart agriculture as being not only efficient but also environment friendly which is good for green world and nature. In this study, biogas based regenerative ORC system design is explained as more efficient than simple ORC design due to its better regenerator efficiency.
Design of Hybrid multi-level inverter for photovoltaic(PV) application
Authors: Haq Ihteshamul , Farooq Ajmal , Ayaz Mian Muhammad Amir , Ali Muhammad
Published: July 2023

Nowadays the demand and consumption of energy increase in the word. Due to high cost of fossil fuel it’s not able to meet the required power generation demand. But the developed and developing countries encourage to generate power from renewable energy sources. The developed countries manage their resources in such a manner that they will fulfill their needs today and in the future as well. Nevertheless, the developing countries have limited sources of fossil fuels, which may decrease day by day. For this problem, the alternate solution is required, which is renewable energy. The output of renewable i.e. photovoltaic (PV) is DC. Now this is a challenging task for the researcher to integrate the renewable energy into the ac grid. For the reliable future of the power system, it is imperative for the modern era to integrate non-conventional sources into the AC power grid.The use of photovoltaic cells is increasing dramatically in all areas of life because of their small environmental impact, pollution-free, minimal maintenance, and zero noise. The real work focuses on the integration of PV systems with the proposed new topology called Multi-level inverters based on switch dc sources for low, medium and high power applications. An inverter is a power electronics device that converts DC input to AC output voltage. Input DC voltage is obtains from PV cell array, fuel cell or any other source.The output of PV panels is use as DC input voltage source for the proposed inverter. Single-phase multi level inverter is use to convert dc power receiving form PV array to AC power. First single phase two level inverter introduce which have many problems like those that high value capacitor required at output and high total harmonics distortion’s (THD). Nevertheless, as the number of level increased in inverter output the number of electronic switches also increased which may increase the losses.Multi-level inverters are gave more attention for high power applications. In recent years, lower order harmonic components has been developed to operate at higher switching frequencies.On the other side as the number of level increased the output waveform approach to sinusoidal waveform and the harmonics decreased. Output voltage and current waveforms are obtains and THDs are analyze. The multi-level inverter used in un-interrupted power supply (UPS), variable frequency drives (VFD), pumps etc. The performance of single-phase multi-level inverter will be analyzed in MATLAB / Simulink software.
Classification of Poisonous and Edible Mushrooms with Optimized Classification Algorithms
Authors: Metlek Sedat , Çetiner Halit
Published: July 2023

Within the scope of this study, it is aimed to classify the mushroom species consumed as a staple food. For this purpose, 8124 mushroom data with 22 different mushroom feature information were used. 5686 of these data were used for training and 2438 for testing. In the study, poisonous and edible mushroom species were classified by random forest, decision tree, and logistic regression classification methods. The parameters used in the random forest and decision tree classification algorithms used in the study were optimized with the GridSearchCV optimization method. With the random forest algorithm, the highest precision, recall, and F1 score values are 0.93, 0.98, and 0.95, respectively. When these values are examined on a class basis, the highest distinctiveness results were obtained in the poisonous class. In the edible class, the highest performance results were measured as 0.97, 0.92, and 0.95 for precision, recall, and F1 score values, respectively. With the decision Tree algorithm, the highest precision, recall, and F1 score values are 0.98, 0.98, and 0.92, respectively. The highest precision, recall, and F1 score values of the best poisonous class are 0.90, 0.98, and 0.92, respectively. The best performance results of the edible class were obtained with the highest precision, recall, and F1 score values of 0.98, 0.89, and 0.90, respectively. The average accuracy rate was 0.9028 with the Logistic Regression algorithm, and the precision, recall, and F1 score values of the poisonous class were obtained as 0.86, 0.97, and 0.91, respectively. Precision, recall, and F1 score values of the Edible class were obtained as 0.96, 0.83, and 0.89, respectively.
Detection of Welding Defects by Non-Destructive Testing Methods
Authors: SOYTURK Furkan , GUNOZ Alper , KARA Memduh
Published: July 2023

One of the most used joining methods in the manufacturing industry is welded joints. Welded joints are non-removable types of joints and good mechanical properties are expected from the weld seam after joining. For this reason, it is extremely important that there are no errors, defects or gaps in the weld area. This study is about the detection of defects existing in the welding regions of various machine elements with welded joints by non-destructive testing methods. The advantages and disadvantages of the non-destructive testing methods used in the study are presented.
Hematological, Biochemical and Blood Gas Findings in a Calf with Cerebral Theileriosis
Authors: UZTİMÜR Murat , KEÇECİ Hakan
Published: July 2023

This case report aims to present the clinical and laboratory findings of cerebral theileriosis in a 1-month-old female Holstein calf. In the clinical examination of the calf, blindness, ataxia, opistotonus, nystagmus and convulsions, anemia and petechial hemorrhage foci in the conjunctiva, upper palate, gingiva were observed, and asymmetrical enlargement of the left prescapular lymph node was detected. As a result of hematological examinations, it was determined that lymphocyte count, erythrocyte count, hemoglobin amount, mean erythrocyte diameter (MCV) and hematocrit values were lower than normal, but mean erythrocyte hemoglobin concentration (MCHC) and platelet values were lower than normal in the calf. higher than normal values. In terms of biochemical values, blood urea nitrogen (BUN), direct and indirect bilirubin, triglyceride and creatine kinase myocardial band (CK-MB) values were found to be higher than normal values. In blood gas analysis, blood pH and glucose values were lower than normal values, and lactate concentration was higher than reference values.The parameters in this case report are reported to be helpful in the differential diagnosis of similar cases that veterinarians in the field may encounter.
Single-Flow Supercritical CO2 Brayton Cycles: A Performance Comparison of the Different Layouts
Authors: ÇELİK TOKER Serpil , KIZILKAN Önder
Published: July 2023

Supercritical CO2 Brayton cycle (sCO2-BC) has been frequently used in power generation applications in recent years due to its high efficiency, compact size, and low-cost advantages. In this study, performances of different configurations of single-flow sCO2-BCs, such as recuperation, intercooling, reheating, pre-compression, inter-recuperation, and split expansion, are examined. Firstly, thermodynamic analyzes of six different single-flow sCO2-BCs were conducted. Secondly, parametric analyses based on the system performance-influencing parameters, such as turbine input temperature, turbine inlet pressure, and compressor inlet pressure, were carried out. Engineering Equation Solver (EES) computer software was used in the analysis. According to the initially accepted design parameters, the highest energy efficiency was calculated as 39.25 % in the reheating cycle, and the lowest efficiency was found as 29.62 % in the split expansion BC. Moreover, it has been determined that the energy and exergy efficiencies of cycles increase with rising turbine input temperature and turbine input pressure.
The Role of miRNAs in Asthma
Authors: Tosun Hilal , Ceylan Hamid
Published: July 2023

Asthma is a heterogeneous respiratory disease that causes cough and respiratory distress and is known to greatly affect the quality of life in the later stages. In asthma, as in all other inflammatory diseases, miRNAs control the cell's ability to grow, reproduce, and survive by regulating the interactions of cells that shape the bronchi, airway structure, and cells responsible for defense mechanisms in the lungs. In addition, miRNAs play an active role in synthesizing and secreting immune mediators and chemokines. More importantly, they are molecules with chemical and biological properties that allow patients to be classified for optimal drug selection, can be used as appropriate biomarkers for diseases, and simplify clinical management. At the same time, these molecules ease the burden of intensive care associated with diseases, while reducing the economic burden of the disease. In this review, we discussed the interrelationships between miRNAs and asthma pathologies as well as the effect of miRNAs on the disease trajectory in asthma.
Stress Analysis of Belt Conveyor Roller Tube
Authors: Düzenli Ayberk , Gül Okan
Published: July 2023

Material transmission plays a crucial role in the industrial sector's economic landscape, and belt conveyors have emerged as highly efficient systems for continuous material transportation. These conveyors utilize rubber belts that facilitate the horizontal or inclined movement of materials. The primary objective is to transport materials from the loading point to the unloading point. This study focuses on the analysis of belt conveyors, specifically examining the utilization of reels and the significance of selecting suitable belt speeds. By employing advanced simulation software such as Ansys, the behavior of the reel under specific conditions was analyzed, and exaggerated images were utilized to visualize reel deformations. The findings indicate that the most significant deformation occurs at the center of the roller, while the highest stress values are concentrated near the bearings. To ensure efficient material transportation, it is imperative to understand and optimize the performance of belt conveyors. The selection of appropriate reels, belt speeds, and materials is crucial to maintain smooth operations and extend the system's service life. The insights gained from this research can guide decision-making processes, allowing industries to enhance efficiency and minimize maintenance costs. In conclusion, the selection of suitable components and a comprehensive understanding of reel behavior are key factors in improving belt conveyor systems. By employing advanced simulation tools and implementing effective strategies, industries can optimize material transportation processes, increase productivity, and minimize operational disruptions. Continuous improvement in design and maintenance practices will lead to streamlined operations and improved performance of belt conveyors.
Kamu Sektöründe Proje Yönetimi: Örnek Bir Uygulama
Authors: Desticioğlu Taşdemir Beste , Tosya Merve
Published: July 2023

Günümüzde kaynakların verimli ve etkin kullanımı önem kazanan bir konu haline dönüşmüştür. Kamu kurumlarında veya özel sektörde; projelerin tasarımı, seçimi, uygulaması, uygulama sonrası analiz edilmesiyle zayıf yönlerinin güçlendirilmesine kadar olan sürecin etkin yönetilmediği, dolayısıyla birçok projeden istenilen verimin alınamadığı, kıt kaynakların israf edildiği ve bazı projelerin de atıl kaldığı söylenilmektedir. Bu yüzden projelerin etkin bir şekilde yönetilmesi hem maliyet hem de zaman açısından kamu kurumlarına avantaj sağlamaktadır. Sistem yaklaşımıyla bakıldığında, yüzlerce, binlerce projenin etkin bir biçimde yönetilmesi sonrası ulaşılacak sonuç, genel olarak yönetim etkinliğine çeşitli şekillerde yansıyacaktır. Bunu sağlamak için de, proje etkinliğini engelleyen faktörlerin neler olduğunun belirlenmesi, bu engellerin ortadan kaldırılması için, uzun ve kısa vadede yasal, yapısal ve yönetsel açıdan nelerin yapılması gerektiğinin ortaya konulması ve çözüm bulunması önemlidir. Projenin tamamlanma zamanının belirlenmesinde yararlanılan zaman yönetimi ise projenin kilit bilgi alanlarından birini oluşturmaktadır. Bu çalışmada, bir kamu kurumunda heyet ziyareti projesinin nasıl daha etkin bir şekilde yönetileceği konusu ela alınmış, projenin faaliyetleri ile iş kırılım yapıları oluşturulmuştur. Projenin tamamlanma zamanın ve maliyetinin hesaplanmasında ise MS Project programı kullanılmıştır.
Performances of Pre-Trained Models in Classification of Body Cavity Fluid Cytology Images
Authors: Yücel Nadide , Yildirim Muhammed , Aslan Serpil
Published: July 2023

Using deep learning architectures, disease detection from medical images such as brain images, chest X-rays, and cytology images is used in many areas. With the use of deep learning architectures in the faster detection of diseases, the possibility of starting treatment early increases. Benign and malignant cell clusters are formed from body cavity effusions. Diagnosis is made by visual inspection of images of centrifuged body fluid effusions deposits. Bad cells are usually abundant in body cavity fluids. Here, separating malignant cells from the proliferation of mesothelial cells or inflammatory cells is the problematic part. In this case, a classifier can be used to distinguish benign mesothelial or inflammatory cells from malignant carcinoma cells. In this study, using Convolutional Neural Network (CNN) based models, the detection of benign and malignant cells from cytology images consisting of fluids in the body cavity will be an aid to pathologists by detecting early and accurately. The dataset contains 693 images with two classes of 256x192 benign and malignant cells. These images are trained using AlexNet, ResNet50, DarkNet53, GoogleNet, MobileNetv2, and EfficientNetb0 architectures. As a result of the test phase, the highest classification accuracy was obtained in the DarkNet53 architecture with 98.56%.
Analysis of The Mechanical Properties of Inconel 718
Authors: Korkmaz Çağlar , Gül Okan
Published: July 2023

Super alloys appear as indispensable materials in areas where engineering alloys are used today. What makes these alloys indispensable is that other engineering alloys cannot show the desired mechanical properties under the desired temperature conditions. Especially nickel-based super alloys have become indispensable materials for the aviation industry. While most of the engineering alloys exhibit poor resistance and poor creep behavior at high temperatures, nickel-based super alloys show good strength and good creep behavior even at high temperatures (up to about 650 °C). One of the biggest reasons for the production of the turbine blades in the front of the aircraft engines from nickel-based super alloys is good resistance even in variable temperature conditions (air temperature is around -50 °C when the aircraft is 11 km above the ground and 25 °C at sea level), toughness and good creep properties. While the Inconel 718 alloy gives these strength properties, precipitation hardening mechanism is utilized. This study was made to show how Inconel 718 exhibits mechanical behavior under desired temperature conditions, and to indicate which mechanisms it utilizes while exhibiting these properties, turbine blade design was made in student version of SIEMENS SOLID EDGE. In addition, this design has been analyzed in the ANSYS student version.
L Tipinde Yapılan Yapıştırma Bağlantısında Partikül Etkisinin Belirlenmesi
Authors: DAMKAYA Hüseyin , ÇETKİN Edip
Published: July 2023

Endüstri uygulamalarında makine parçaları çeşitli şekillerde hasara uğramaktadırlar. Parçaların hasar durumuna göre ya değişim yapılmakta ya da tamir işlemleri yapılmaktadır. Zaman ve maliyet açısından tasarruf sağladığı için tamir işlemi daha çok tercih edilmektedir. Tamir işlemi için kaynak, cıvata, perçin ve yapıştırma yöntemleri tercih edilmektedir. Yapıştırma işlemi pratik ve parçaların bütünlüğünü bozmadan düzgün bir birleşme sağladığı için daha çok tercih edilmektedir. Yapılan bu çalışmada AA5754 alüminyum alaşımları DP410 ve DP490 yapıştırıcıları kullanılarak L tipi şeklinde yapıştırmalar yapılmıştır. Ayrıca TiO2 nano partikülü %2, %4 ve %6 oranlarında yapıştırıcılara eklenerek takviyesiz duruma göre çekme yükü karşısındaki etkisi belirlenmiştir. Yapılan çekme deneylerindetakviye oranlarının takviyesiz duruma göre çekme kuvveti üzerinde artışlar sağlamıştır. En büyük iyileştirme DP410 yapıştırıcısına %4 TiO2 takviyesinde sağlanmıştır.
Doğal Afetlerde Arama Kurtarma Ekiplerinin Çizelgelenmesi: Aydın Depremi Senaryosu
Authors: Akdaş Elif , Eren Tamer
Published: July 2023

Aniden meydana gelen afetler çevreyi ve insanları etkilemektedir. Türkiye, Afrika ve Arabistan levhaları ile Avrasya levhaları arasında yer alan bir deprem bölgesidir. Ani gelişen bir doğal afet olan depremler, can ve mal kaybına sebep olmaktadır. Yakın zamanda yaşanan Kahramanmaraş depremleri ile depremin ne kadar ciddi kayıplara sebep olduğu görülmüştür. Depremin oluş zamanı bilinmemektedir ancak gerekli planlamaların yapılması ile sebep olacağı kayıp ve zararlar azaltılabilir. Bu kayıp ve zararların azaltılması için bir yönetim sistemine ihtiyaç vardır. Afet yönetimi, ihtiyaç duyulan kaynak ve faaliyetlerin organizasyonunu ve yönetimini kapsamaktadır. Afet yönetiminin müdahale aşamasında arama kurtarma ekipleri çoklu ve dağınık afet bölgelerinde, canlı odaklı yaptıkları enkaz çalışmalarında zorlu görevler üstlenerek zaman baskısına karşı arama kurtarma çalışmalarını yürütmektedir. Arama kurtarma ekiplerinin afet bölgelerine hızlı bir şekilde gönderilmesi etkili bir organize gerekmektedir. AFAD Deprem Dairesi Başkanlığı tarafından deprem sonrası kaosu ve bilgi kirliliğini azaltmak için müdahale ekiplerinin doğru afet bölgelerine en kısa zamanda sevk edilmesi amacıyla, AFAD-RED analiz programını kullanarak deprem senaryoları üretmektedir. Senaryonun çıktıları potansiyel kayıplar için tahmini sonuçlarüretmektedir. Bu çalışmada, neredeyse tamamı alüvyon zemin üzerine kurulu olan, bu zeminden dolayı geçmişte olumsuzluklar yaşayan Aydın ili ele alınmıştır. Risk analiz çalışmalarında oluşturulan merkez üssü Efeler ilçesinde meydana gelecek 7.0 büyüklüğünde deprem senaryosunun çıktıları kullanılarak çalışma devam ettirilmiştir. Yıkık binaların olduğu afet bölgelerine sevk edilecek AFAD arama kurtarma ekiplerinin çizelgelenme problemi ele alınmıştır. Uygun sayıdaki ekipleri doğru afet bölgelerine sevk etmek için hedef programlama yöntemi ile bir matematiksel model oluşturulmuştur.
Kompozit Zırhların Geometrisinin Balistik Dayanıma Etkisinin İncelenmesi
Authors: Şenaslan Mehmet Orhan , İstif İlyas
Published: July 2023

Katmanlı kompozit malzemeler, havacılık, uzay, otomotiv ve diğer birçok endüstride yaygın olarak kullanılan malzemelerdir. Bu malzemeler, yüksek elastisite modülü ve mukavemet gibi olağanüstü özelliklere sahip olmalarının yanı sıra belirli uygulamalar için veya belirli zorlama için özelleştirilebilme yetenekleri nedeniyle tercih edilmektedir. Bu çalışmada, cam ve fiber takviyeli dokuma kompozit plakalardan oluşan zırhların sahip olduğu geometrilerin, balistik etkiye karşı olan direnci incelenmiştir. Zırhların farklı geometrileri, eşit kalınlık ve eşit projeksiyon alanına sahip olarak tasarlanmıştır. Zırh tasarımında, eğrilik merkez açısı tasarım parametresi olarak belirlenmiştir. Tek eğrilik merkezine sahip zırhlar ANSYS ACP’de modellenmiş ve ANSYS Explicit Dynamics kullanılarak simülasyonları gerçekleştirilmiştir. Her farklı hızdaki simülasyonlar için, sınır koşulları ve başlangıç koşulları sabit tutulmuştur. Simülasyonlarda, zırhların katman sayıları, katman kalınlıkları, katman sıraları, mermi geometrisi, mermi ağırlığı ve mermi-zırh mesafesi gibi parametreler aynı olarak belirlenmiştir. Simülasyon çıktıları arasında, merminin zırhtan ayrılma hızları ve zırh yüzeyinde oluşan kuvvetler yer almaktadır. Bu çıktılar, zırhların karşılaştırılması ve performans analizi için kullanılmıştır. Buna göre, eğri zırhların birçoğu, birçok farklı hızda düz plakaya kıyasla balistik etkiye karşı daha dayanımlı olduğu gözlemlenmiştir. Bu bulgular, katmanlı kompozit zırhların geometrik özelliklerinin enerji emilimi üzerinde önemli bir etkiye sahip olduğunu ve eğrilik merkez açısının zırh tasarımında optimize edilmesinin performans artışı sağlayabileceğini göstermektedir.
Mega Projelerin Halka Arz Yöntemi ile Finansmanı Üzerine Bir İnceleme: Yavuz Sultan Selim Köprüsü ve Kuzey Marmara Otoyolu Örneği
Authors: Gürbüz Ramazan , Yalçın Rıdvan
Published: July 2023

Dünya genelinde altyapı yatırımları genellikle çeşitli finansman modelleriyle gerçekleştirilmektedir. Yap-işlet-devret (YİD) modeli, yaygın olarak tercih edilen bir yöntem olup, özel sektörle yapılan anlaşmalar aracılığıyla projelerin finansmanı ve işletmesi sağlanmaktadır. Türkiye’de de altyapı projeleri çoğunlukla YİD modeliyle finanse edilmektedir. Bu model, projelerin özel sektör tarafından finanse edilmesini, inşasını ve işletmesini öngörmektedir. Yavuz Sultan Selim Köprüsü ve Kuzey Marmara Otoyolu da Türkiye'nin YİD modeliyle gerçekleştirilen önemli projeleri arasında yer almaktadır. Projede kullanılan kredili finansman yöntemi, YİD modelinin bazı sorunlarına neden olmaktadır. Uzun vadeli işletme süresi ve kredi faizi gibi mali yükümlülükler, projelerin finansal sürdürülebilirliğini etkileyebilmektedir. Ayrıca, devletin garanti geçiş ücreti gibi mali yükümlülükleri de söz konusu olabilmektedir. Bu çalışmada, mevcut sorunları azaltmak için halka arz finansman yöntemi önerilmektedir. Halka arz, projelerin finansmanında halkın doğrudan katılımını sağlayarak, projelerin mali yükümlülüklerini ve devletin garanti ücret gibi ödemelerini azaltmaktadır. Yavuz Sultan Selim Köprüsü ve Kuzey Marmara Otoyolu örneği üzerinden halka arz finansman yönteminin potansiyeli incelenmiştir. İç verim oranı analiziyle, bu alternatif finansman yönteminin faizli kredi finansmanından daha verimli olduğu ortaya konulmuştur. Elde edilen en temel bulgular, halka arz finansman yönteminin projelerin mali yükümlülüklerini azaltabileceği, devletin garanti ücreti gibi ödemeleri minimize edebileceği ve halkın projeye doğrudan katılımını sağlayarak finansmanı çeşitlendirebileceğidir. Altyapı yatırımlarının finansmanında halka arz finansman yönteminin, mevcut sorunları azaltabileceği ve daha sürdürülebilir bir finansman modeli sunabileceği görülmektedir.
Overview of Hydrogen Production by Electrochemical Method; Advantages and Disadvantages
Authors: ATEŞ Ayşe Elif , ATEŞ Sinan
Published: July 2023

Electrochemical methods are an important technology for environmentally friendly and sustainable hydrogen production. These methods are carried out using electrocatalysts and electrodes. In the hydrogen production process, hydrogen gas is obtained thanks to the electrochemical reactions that take place between the anode and cathode electrodes. On the anode side, hydrogen gas undergoes oxidation and dissociates into hydrogen ions. This reaction occurs when hydrogen molecules lose electrons. Electrocatalysts accelerate the oxidation reaction, enabling the active breakdown of hydrogen. On the cathode side, hydrogen ions and electrons combine to form hydrogen gas. Electrocatalysts increase efficiency by catalyzing the formation of hydrogen gas. Electrochemical hydrogen production is of great importance in reducing dependence on fossil fuels, reducing greenhouse gas emissions and promoting clean energy sources. These methods can use electricity from sources such as solar or wind energy, integrating with renewable energy sources. Electrochemical hydrogen production has advantages such as high efficiency, low emissions, low cost and wide applicability. However, difficulties may also be encountered, such as the activity and durability of electrocatalysts. Research and development focuses on discovering more efficient and economical electrocatalysts and improving the hydrogen production process. In conclusion, electrochemical methods are a promising technology for clean and sustainable hydrogen production and play an important role in the field of energy conversion.
Biological Hydrogen Production from Urban and Industrial Wastewater
Authors: ATEŞ Ayşe Elif , ATEŞ Sinan
Published: July 2023

Biological hydrogen production is a process in which microorganisms convert organic matter into hydrogen gas. This renewable energy production method is of great interest as an environmentally friendly and sustainable energy source. Biological hydrogen production can be accomplished using different methods. The dark fermentation method is a process in which organic substances are converted into hydrogen gas by microorganisms in anaerobic (oxygen-free) environments. In this method, organic materials are subjected to the fermentation process and hydrogen gas is released. This process also offers a solution for waste management. Photo fermentation is a process in which photosynthetic organisms convert organic materials into hydrogen gas using light energy. The light is absorbed by the photosynthetic pigments and provides the necessary energy for hydrogen gas production. In this method, clean hydrogen gas can be produced using solar energy. Biological hydrogen production methods have several advantages. These include the use of renewable resources, low greenhouse gas emissions, waste management and low energy consumption. However, there are also some disadvantages depending on the methods, for example limited light access or the difficulty of obtaining the purity of hydrogen gas. Biological hydrogen production is a promising method to meet clean and sustainable energy needs. Continuous research and development studies continue to increase the efficiency of these methods and eliminate their disadvantages. In the future, with the more widespread use of biological hydrogen production methods, the diversity of clean energy sources will increase and environmental sustainability will be ensured.
Çukur ve Tümsek Ayna Geometrisinde Emici Yüzeye Sahip Güneş Hava Kolektörlerinin Sayısal Analizi
Authors: ÖZTÜRK Murat , ÇİFTÇİ Erdem
Published: July 2023

Sürdürülebilir bir gelecek anlamında yenilenebilir enerji kaynakları oldukça büyük önem taşımaktadır. Bu anlamda güneş enerjisi gibi yenilenebilir enerji kaynaklarından faydalanmak için farklı sistemler üretilmiştir. Güneş hava kolektörleri de yenilenebilir enerji kaynaklarının en temeli olan güneş enerjisinden faydalı enerji elde etmek amacıyla üretilmiş olan bir sistemdir. Günümüzde güneş hava kolektörlerinin performansının iyileştirilmesi amacıyla pek çok çalışma yapılmıştır. Bu çalışmada da güneş hava kolektörlerinin performansını arttırmak amacıyla çukur ayna, tümsek ayna ve çukur-tümsek ayna şeklindeki emici yüzeylere sahip güneş hava kolektörleri geleneksel düz plakalı kolektör ile karşılaştırmalı olarak incelenmiştir. Sayısal olarak gerçekleştirilen bu analizlerin yapılmasında Hesaplamalı Akışkanlar Dinamiği (HAD) yaklaşımından yararlanılmıştır. Her bir sistemde giriş noktası için hava akış hızı 2.5 m/s belirlenmiş olup laminer akış modeli altında analizler yapılmıştır. Yapılan analizlerin sonucunda düz plakalı sistemden yaklaşık olarak 47.35C, çukur ayna modeline sahip sistemden 50.60C, tümsek ayna modeline sahip sistemden 39.75C ve çukur-tümsek ayna modeline sahip sistemden 53.54C hava çıkış sıcaklıkları elde edilmiştir. Bunun yanı sıra hava akış hızında maksimum düşüş çukur ayna modelinde elde edilmiştir. Elde edilen sonuçlara bağlı olarak maksimum performans çukur-tümsek ayna modeline sahip güneş hava kolektöründen elde edilirken, düz plakalı güneş hava kolektörü ile çukur ayna modeline sahip güneş hava kolektörü benzer karakteristiklersergilemiştir. Buna bağlı olarak mevcut çalışmada sayısal olarak incelenen güneş hava kolektörlerinin farklı modifikasyonlar ile daha olumlu sonuçlar verebileceği bulgusuna varılmıştır.
Seismic Strengthening of Stone Barrel Vault Structures by Foam Concrete
Authors: Günday Furkan
Published: July 2023

Historical buildings are the cultural heritage of the world. Preservation of historical buildings is important in the past and today. In particular, material fatigue, environmental vibration effects and natural disasters that occur over time cause great damage to historical structures. It is thought that many historical buildings will not reach the next years due to neglect. In order to prevent this situation, historical buildings should be maintained and strengthened if necessary. In addition, historical buildings should have sufficient stiffness to prevent collapse against pre-disaster situations. Stone barrel vaults are one of these historical cultural heritages. Many stone barrel vault type historical structures are frequently encountered today. In order for stone barrel vaults to be transferred to the future, care should be taken and they may need to be strengthened periodically, especially after disasters. For all these reasons, in this study, the foam concrete method, which is one of the retrofitting methods of buildings, is mentioned. Thus, the effect of the foam concrete method applied on an exemplary stone barrel vault on modal parameters has been demonstrated. In this comparative study, it was observed that the stiffness of the stone barrel vault increased with the foam concrete method. As a result of this study, it is suggested to retrofitting the stone barrel vault with the foam concrete method, taking into account the state of the stone barrel vault and environmental factors.
Two-Position Synthesis of the Four-Bar Planar Linkage Mechanisms Using Artificial Neural Networks
Authors: Denizhan Onur
Published: July 2023

The four-bar linkage mechanism is a fundamental and widely recognized mechanism with diverse applications, including various vehicle components, rehabilitation robotics, and rotary and reciprocating engines. Traditional textbooks introduce graphical and analytical solutions for the kinematic synthesis problem of the four-bar mechanism in different positions, while research articles explore its applications in various fields. Recently, artificial neural network (ANN) methods have gained popularity across different research domains. Researchers have proposed different solution approaches using ANN algorithms for the inverse and forward kinematic analysis problems of these mechanisms. However, the specific use of ANN algorithms for solving the two-position kinematic synthesis problem of the four-bar planar linkage mechanism has not been explored yet. This study aims to address this gap by introducing a solution for the two-position kinematic synthesis problem of the four-bar planar linkage mechanism using an artificial neural network algorithm. The Levenberg-Marquardt backpropagation neural network algorithm is chosen due to its speed, combination of Gauss-Newton training algorithm and steepest descend method, and ability to provide stable convergence of the training error. The neural network algorithm is trained, validated, and tested using a total of 50 randomly split data sets. Additionally, an additional test is conducted using all 50 data sets to evaluate the performance of the trained neural network algorithm. The study presents and discusses the results of the artificial neural network algorithm solution.
İnsan-Bilgisayar Etkileşimi ve Kullanılabilirlik: Navigasyon Arayüz İncelemesi
Authors: Yasa Kübra , Avcı Ümmühan
Published: July 2023

Günümüzde teknoloji dünyasının sağlamış olduğu imkanlar giderek genişlemekte ve büyümektedir. Bu gelişme akıllı telefonların ve diğer mobil cihazların yaygın olarak benimsenmesi, mobil uygulama kullanılabilirlik testini ürün geliştirme sürecinin ayrılmaz bir parçası haline getirdi. Mobil uygulamalar artık eğlenceden üretkenliğe ve hatta tıbbi uygulamalara kadar çok çeşitli farklı amaçlar için geliştiriliyor. Bu nedenle, geliştiricilerin uygulamalarının kullanıcı dostu ve sezgisel olmasını sağlamak için çok çaba sarf etmesi önemlidir. Mobil uygulamalar kullanıcılar tarafından her an ve her yerde erişilebilirdir. Bu nedenle mobil uygulama işlevleri her zaman ve her yerde doğru, güvenilir ve kolay/anlaşılır olmalıdır. Mobil uygulama kullanılabilirliği test etme son yıllarda giderek daha popüler hale geldi. Bir mobil uygulama olan Yandex Navigasyonunun kullanılabilirlik testi, kullanıcıların uygulamayı kullanırken en iyi deneyimi yaşamasını sağlamak için çok önemlidir. Bundan dolayı geliştiriciler, müşterilerin uygulamayla nasıl etkileşim kurduğunu anlamak için kullanıcı senaryoları oluşturmak ve odak grup görüşmeleri yapmak gibi çeşitli yöntemler kullanabilir. Bu çalışmamızın amacı, Yandex Navigasyon mobil uygulamasının kullanılabilirliğini test etme ve elde ettiğimiz verileri yorumlayarak rapor halinde sunmaktır. Çalışmanın sonucunda Yandex Navigasyonu mobil uygulamasına ilişkin kullanıcı görüşleri çoğunlukla olumlu olmuştur. Sonuçlar aracılığıyla kullanıcı problemleri tespit edilmiş ve benzer uygulamaların geliştirilmesi sürecine çözüm önerileri sunulmuştur.
THE IMPACT OF URBAN AND INDUSTRIAL ACTIVITY IN THE POLLUTION OF SHKUMBINI RIVER
Authors: Bekteshi Lirim , Hoxha Belinda , Gega Nikolin , Karamelo Piro
Published: July 2023

Demographic movements and increased industrial activity in the Elbasan area have affected the water quality of the Shkumbin River. River water pollution can be natural, as a result of the erosion of the soil formations that make up its catchment basin, but also of anthropogenic activity related to life and industrial activity.In the study area, we have the urban influence on the pollution of the river, which is caused by the city of Elbasan, and the industrial one, which is caused by the activity of a large number of industrial activities.Shkumbin River is one of the most important rivers in Albania. Its waters are widely used for the irrigation of the field of Elbasani and a part of Myzeqeja field. But it is also used for fishing and for various reasons.Considering these facts, the study of river water pollution and the determination of the sources of its pollution assume great importance. In this paper, an assessment of the urban and industrial impact on river water pollution is made. Water quality monitoring of Shkumbini river water, was carried out based on the investigation of ten physical - chemical parameters: pH. EC, T, DO, TDS, salinity, nitrite, nitrate, ammonia, and PO43-, in three water samples taken at three stations.The water quality assessment is based on: NIVA classification and the European Community directive on "quality of fresh waters supporting fish life".
An Examination of Studies on the Use of Chatbot Technology in the Field of Education
Authors: YILDIZ DURAK Hatice , ONAN Aytuğ
Published: July 2023

Today, it is observed that technologies are rapidly advancing and being utilized in educational environments. Among these technologies, chatbots, which have gained significant popularity with ChatGPT, play a crucial role in enhancing learning experiences. Chatbots offer numerous opportunities to support learning performance, increase engagement, and provide extracurricular feedback and assistance to students. These chatbots are capable of interacting with users in a natural language format, enabling seamless communication. They are designed to follow predefined patterns, answer questions, and provide guidance within their defined scope. This article aims to examine the existing research on the utilization of chatbots in educational environments to shed light on the significance of their implementation. To achieve this objective, 19 articles and papers related to the field were analyzed using Google Scholar, incorporating keywords such as 'chatbot+education' and 'chatbot in education'. The articles and papers were subjected to a descriptive analysis, covering sections such as the subject, purpose, methodology, results, discussion, and recommendations. Based on the review, it was observed that many studies focused on the usability and product design of chatbots in education. The samples used in these studies predominantly comprised university-level participants, with limited applications targeting larger student populations. It is anticipated that the data and results presented in this study will serve as a guide to identify existing applications and research gaps in the utilization of chatbots in education.