Sule Itir Satoglu

Istanbul Technical University · Department of Industrial Engineering

Logistics plays a crucial role in the operation and planning of biogas plants. To achieve better economic returns and develop effective waste management strategies, optimizing the location of these plants is essential. Geographical Information Systems (GIS) have proven to be a valuable tool for evaluating plant locations and logistics. In this stud...

Purpose – Disaster Management and Humanitarian Logistics play crucial roles in large-scale events such as earthquakes, floods, hurricanes, tsunamis, etc. Well-organized disaster response is crucial for effectively managing medical centers, staff allocation, and casualty distribution during emergencies. To address this issue, this study aims to intr...

As pharmaceutical products carry vital importance for society, demand AQ1 forecasting of pharmaceuticals is much more critical. A well-designed demand forecasting and planning can prevent pharmaceutical companies from stock-out and high disposal costs of products. However, there is a limited number of studies about demand forecasting in the pharmac...

The study focuses on the AGV routing problem, which includes the delivery of materials from the supermarket to the stations to meet the needs of the assembly line. The problem is considered a capacity-constrained vehicle routing problem. In this context, a multi-objective mixed integer linear mathematical model is developed, which determines the ro...

About a quarter of greenhouse gas emissions originates from the transportation sector (European Commission, 2011). The main reason for this situation is that most of the transportation energy is provided by petroleum-based fuels. In Turkey, 16% of the total greenhouse gas emissions in 2017 were 84.7 Mton CO2eq originating from the transportation se...

Drones have started to be used for surveillance within the cities, visually scanning the predefined zones, quickly detecting abnormal states such as fires, accidents, and pollution, or assessing the disaster zones. Coverage Path Planning (CPP) is a problem that aims to determine the most suitable path or motion plan for a vehicle to cover the entir...

Sustainable supply chains gained importance worldwide because of the increasing environmental concerns and new governmental legislations. Optimization of the reverse logistics networks takes an important place to achieve sustainability. Moreover, glass containers are one of the most environment-friendly packaging materials with almost 100% recyclab...

TÜBA tarafından Milli Teknoloji Hamlesi tematik odağında yürütülen bu çalışma, Türkiye’nin teknolojik atılımının her aşmasında yaşananları ve tecrübeleri bilimsel bir zeminde ve yöntemde literatüre kazandırmaktadır. Sağlıktan ulaşıma, savunmadan eğitime, sanayiden uzaya birçok alanda başlatılan yerli ve milli teknoloji ve yenilik girişimi çok boyut...

This book, prepared by TÜBA, with a thematic focus on the National Technology Initiative, conveys to the literature, scientifically and methodically, the experiences and insights gained at every level of Türkiye’s technological success. Scientists, technology managers, and decision-makers have contributed 37 chapters for the home and national techn...

The capacitated p-median problem is a well-known location-allocation problem that is NP-hard. We proposed an advanced Genetic Algorithm (GA) integrated with an Initial Solution Procedure for this problem to solve the medium and large-size instances. A 3^3 Full Factorial Design was performed where three levels were selected for the probability of mu...

The electronics industry, where the most important technological advancements have been made in the last decade, has a critical position within the framework of sustainability. Planning is made about a product’s life cycle, starting from the design, manufacturing, usage, and end-of-life stages. At the end of the life cycle, reuse, remanufacture/rep...

Supply chain management (SCM) is the process of managing the people, resources, activities, and technology involved in manufacturing and delivering a product or service in order to reduce costs and avoid shortages. Supply chain analytics is the term that refers to the analytical decision-making processes using huge amount of data generated through...

Purpose – The purpose of this paper is to propose a data-driven casualty transportation system based on Radio Frequency Identification technology to improve the related process during the response stage. Besides, it aims to statistically assess the effects of the design factors on the casualty transportation system's performance in large-scale disa...

In a natural disaster such as an earthquake, due to the extensive number of injured, demand for blood units sharply increases in health care centers. Thus, designing an efficient supply chain network for managing blood distribution is one of the major concerns for the healthcare systems under uncertain conditions. This study aims to propose a metho...

Bu projemizde öncelikle afet sonrası kurulması gereken “Geçici Tıp Merkezi” (Sahra Hastanelerinin) sayına ve konumlarını, belirsiz koşullar altında optimum şekilde karar vermeye yönelik iki aşamalı bir stokastik programlama modeli geliştirilmiştir. Amaç, afet öncesinde geçici tıp merkezi kurulum maliyeti ile beklenen yaralı taşıma maliyetinin topla...

In natural disasters, having a capable network of collecting and distributing crucial items such as blood is one of the major concerns. However, due to damage to the infrastructure after disasters, mobile blood collecting facilities (blood mobiles) are usually required. This paper aims to decide the locations of mobile facilities in each period for...

Disaster management is a process that includes mitigation, preparedness, response and recovery stages. Operational strategies covering all stages must be developed in order to alleviate the negative effects of the disasters. In this study, we aimed at minimizing the number of casualties that could not be transported to the hospitals after the disas...

Sales forecasting with high accuracy is crucial in many industries. Especially, in fast-moving consumer goods, retail and apparel industries, the products are not tailor-made and must be produced and made available in chain stores to the cus-tomers, in advance. Therefore, for sales and operations planning, forecast information is required. However,...

In recent years, sustainable product design process gained notable attentions and evolved having Triple Bottom Line (TBL) accounting perspective. TBL requires integrating environmental, social as well as economic factors at the design phase. Making a product sustainable is important from the customers’ point of view, because today customers show te...

As a result of the product diversification, many types of components are used in the products’ bill-of-materials. Consequently, smaller quantities of many different types of components are needed to be distributed. All these factors complicated the part-feeding to the assembly lines. In this study, a mathematical model is developed for an in-plant...

Sales forecasting with high accuracy is crucial in many industries. Especially, in fastmoving consumer goods, retail and apparel industries, the products are not tailor-made and the products must be produced and made available in chain stores to the customers, in advance. Therefore, for sales and operations planning, forecast information is require...

Typically, the total number of required workstations are minimised for a given cycle time (this problem is referred to as type-1), or cycle time is minimised for a given number of workstations (this problem is referred to as type-2) in traditional balancing of assembly lines. However, variation in workload distributions of workstations is an import...

Devastating effects of disasters and global crises on people increases the importance of humanitarian logistics studies for pre and post-disaster stages. Location planning of Temporary Medical Centers/field hospitals is one of the most important problems for disaster response. We aimed to determine the location and number of temporary medical cente...

Energy consumption in manufacturing systems is increasingly of interest due to the rising environmental awareness in society as well as the necessity of being cost effective in global competitive environment. Companies have to take measures to decrease their unnecessary energy consumption while maintaining their throughput. In this context, lean ma...

The Triple-bottom-line concept suggests that firms must consider the environmental and social impacts of their decisions, beside the economic aspects. Hence, the sustainability of the firms’ operations can be reached. The purpose of this study is to develop a bi-objective, multi-product and multi-period mixed-integer model for the operations planni...

Waste management is the method developed to eliminate the negative effects of waste to the environment and human health. The study focuses on the subject vehicle routing. The purpose of this study is to minimize the distance of route for the vehicles which pick up recyclable items collected in containers. For this purpose, a decision support system...

The background of sustainability is summed up by three words: Planet, People, and Profit. The 3Ps of sustainability require multi-objective research. This study analyzes the evaluation process of multi-objective optimization. Since it is highly critical for decision makers to understand the results of multi-objective models, the Data Envelopment An...

Yalın lojistik, yalın düşünce çerçevesinde, gerek fabrika içi, gerekse müşteri-tedarikçi firmalar arası katma değeri olmayan malzeme taşıma ve depolama süreçlerinin ortadan kaldırılmasını amaçlar. Bu kapsamda, üretim içinde montaj istasyonlarına gerekli olan parçaların ihtiyaç duyulan miktarda, tam zamanında, sistematik ve etkin bir biçimde beslenm...

Due to legislations, reusing or recycling the end-of-life products has become compulsory. Especially, the waste of the electrical-electronic products (WEEE) requires that harmful materials are disposed of properly, and waste metal, plastic components are recycled and remanufactured in specialized facilities. However, there are uncertainties in the...

Waste management is the whole of process including the collection, transportation, storage, recycling, disposal and control of these for all of the waste types. The process of collection and transportation are covered for recyclable waste in this study. A decision support system has been proposed to plan waste collection according to real-time data...

Background of sustainability is summed up by three words: Planet, People and, Profit. The 3Ps of sustainability requires multiobjective research. This study analyses the evaluation process of multi-objective optimization. Since it is highly critical for decision makers to understand the results of multi-objective models, Data Envelopment Analysis (...

Global concerns about climate change and its environmental consequences, social factors and economic constraints require pursuit of a new approach to the supply chain planning at the strategic, tactical and operational levels. Recovery of waste electric and electronic equipment (WEEE) has become an important issue in the developing economies, as le...

Global concerns about climate change and its environmental consequences, social factors and economic constraints require pursuit of a new approach to the supply chain planning at the strategic, tactical and operational levels. The approach used in investigating sustainability is described as the Triple Bottom Line (TBL) accounting (Anvari and Turka...

Devastating effects of disasters and global crises on people increasingly improve the importance of humanitarian logistics studies for pre and post-disaster stages. In this study, we aimed to determine the location and number of temporary medical centers in case of a disaster by considering the locations of the existing hospitals and medical suppli...

Afetlerin ve küresel krizlerin insanlar üzerindeki yıkıcı etkisi, afet öncesi ve sonrası lojistik faaliyetlerin iyileştirilmesi ve geliştirilmesi ile ilgili çalışmaların önemini gün geçtikçe arttırmaktadır. Afet lojistiği; hazırlık, tedarik, ulaşım, yerleşim, dağıtım, izleme ve depolama gibi farklı faaliyetlerden oluşmaktadır. Literatürde afet loji...

Afetlerin birçoğu beklenmeyen zamanlarda meydana gelmektedir ve çok sayıda kişiyi etkilemektedir. Afet öncesi planlamalar, afetin meydana gelmesi durumunda kurum, kuruluşlar arasındaki koordinasyonun hızlıca kurulmasını ve beklenmeyen olumsuzlukların en aza indirilmesini sağlayacaktır. Bu çalışmada afetlerde yol ve hastanelerin zarar görme durumlar...

In this study, the optimization of in-plant material supply systems is considered. The data used in this study were obtained from an electronics company operating in Turkey. The company is assembling "durable consumer goods" on four different assembly lines. Within the scope of the study, it is aimed to determine the optimum routes and cycle times...

Afetlerin ve küresel krizlerin insanlar üzerindeki yıkıcı etkisi, afet öncesi ve sonrası lojistik faaliyetlerin iyileştirilmesi ve geliştirilmesi ile ilgili çalışmaların önemini gün geçtikçe arttırmaktadır. Afet lojistiği; hazırlık, tedarik, ulaşım, yerleşim, dağıtım, izleme ve depolama gibi farklı faaliyetlerden oluşmaktadır. Literatürde afet loji...

İnsan ve diğer canlıların günlük yaşamını sekteye uğratan büyük hasarlara sebep olan afetler ve acil durumlarda, hızlı planlama, karar verme, tek seferde en doğruyu uygulayabilme hayati öneme sahiptir. Bu gibi durumlarda tüm süreçler düşünüldüğünde karmaşık ve dinamik bir yapı ile karşılaşılmaktadır. Yönetim süreçlerinin hızlıca ilerleyebilmesi içi...

The milk-run is an in-plant lean logistics application where from a central warehouse; full-boxes of components are supplied to the line-side buffer stock areas of the assembly stations, on a just-in time basis, and in a cyclic manner, so that the stations do not run out of stock [10]. The associated problem is the cyclic Inventory Routing Problem...

There are legislations encumbering manufacturers to incorporate recycling for waste electric and electronic equipment (WEEE). White appliances industry is one of these sectors and in many countries, particularly in those who are a mem-ber of the European Union, there are regulations to guarantee the recycling of white appliances. This paper is aime...

Geleneksel olarak, talep tahmin çalışmalarında geçmiş verilerin oluşturduğu zaman serisinin yapısının gelecekte de aynı şekilde devam edeceği varsayılarak bir model kurulur ve gelecek satış miktarları tahmin edilir. Ancak Zaman Serisi Modellerinde talebe etki eden zaman dışındaki faktörler göz ardı edilir. Özellikle, Perakende sektöründe satış mikt...

management, products are collected from the end user and passed through various stages up to the waste recovery plants. In this study, a goal programming model is proposed for reverse logistics operations planning that considers the collection of waste electrical and electronic equipment (WEEE) from customer service locations to the recovery facili...

Most of the industrial products are produced by assembling different parts. In internal logistics activities, the delivery of a product's parts to their relevant assembly line and then to workstations is of great importance and also parts feeding system directly affects the time required to produce the product. This time varies depending on the var...

Today’s manufacturing systems are undergoing significant changes in the aspects of planning, production execution, and delivery. It is imperative to stay up-to-date on the latest trends in optimization to efficiently create products for the market. The Handbook of Research on Applied Optimization Methodologies in Manufacturing Systems is a pivotal...

Simulation is a powerful tool to observe the performance of the manufacturing systems in variable demand and dynamic factory conditions in virtual environments. Recently, modeling and analysis of the factory objects in a 3-dimensional Simulation software emerged that is called a Virtual Factory (VF). The VF provides an integrated simulation model b...

Succeeding a cultural and people oriented transformation, Lean Producers adopts the philosophy of doing more with less by eliminating non-value-added activities from production processes to maintain effectiveness, flexibility, and profitability. With the context of Industry 4.0, new solutions are available for combining automation technology with L...

Many manufacturing plants are subjected to increased market demand for short product delivery lead times. In addition, shorter product life cycles and increased customization have reduced the chance of inventory holding to satisfy these conditions. That being the case, assembly cells are widely used in modern real life systems, since they provide a...

As the U-shaped assembly lines are concerned with manual assembly operations, workers’ performance plays a major role. However, the past studies assume that all workers can carry out all tasks with an equal performance level, and actual task times do not depend on the worker who performs it. On the other hand, this is unrealistic. In this study, ma...

Succeeding a cultural and people oriented transformation, Lean Producers adopts the philosophy of doing more with less by eliminating non-value-added activities from production processes to maintain effectiveness, flexibility, and profitability. With the context of Industry 4.0, new solutions are available for combining automation technology with L...

There are legislations encumbering manufacturers to incorporate recycling for waste electric and electronic equipment (WEEE). White appliances industry is one of these sectors and in many countries, particularly in those who are a member of the European Union, there are regulations to guarantee the recycling of white appliances. This paper is aimed...

İnsani yardım lojistiği; afetlerden etkilenen kişilerin zararlarını hafifletmek ve ihtiyaçlarını karşılamak amacıyla gerekli gıda, malzeme, bilgi ve hizmetin kaynak noktasından tüketim noktasına kadar verimli ve maliyet etkin bir şekilde planlanması, uygulanması ve kontrolü sürecidir. Bu süreç; hazırlık, planlama, tedarik, ulaşım, yerleşim, dağıtım...

The p-median problem is one of the most well-known facility location problem and have several applications in transportation, distribution, location of public, warehouses etc. The objective is to locate p facilities (medians) such that the sum of the distances from each demand point to its nearest facility is minimized. The p-median problem is well...

The main purpose of this study is the allocation of buffer stock tanks to different products, for the production facilities operating in process type production systems of the fast-moving consumer goods (FMCG) industry. The important aspect of the FMCG sector is that the product variation is high, but the demand for each product type is low. A week...

The lexicographic bottleneck assembly line balancing problem is a recently introduced problem which aims at obtaining a smooth workload distribution among workstations. This is achieved hierarchically. The workload of the most heavily loaded workstation is minimised, followed by the workload of the second most heavily loaded workstation and so on....

Sustainability of the manufacturing systems requires that the conditions under which humans and nature can co-exist in productive harmony are maintained, while fulfilling the social, economic and other requirements of the present and future generations (EPA, 2013). Sustainability and consumption of the energy that is one of the vital resources of t...

The purpose of this study is to propose a framework to redesign the conventional material supply systems of the automotive supplier companies by considering the demand characteristics and the bill-of materials of the products, on the basis of lean production principles. Especially, pull (Kanban) system, POLCA and kitting were used to replenish comp...

Effective use of labor, providing system flexibility, increasing productivity, decreasing lead times and costs are some of the most important factors influencing selection of material handling equipment. In this study, a decision support system (MHAD) considering these factors for material handling equipment selection is developed. MHAD consists of...

In this study, a methodology is proposed for developing dispatching plans for the distributors that minimize total transportation, inventory holding and stock-out costs. It is comprised of Pareto Analysis, clustering and order dispatching stages. At first, the products are classified into A, B, and C groups by a Pareto Analysis according to their d...

At the production facilities maintenance policies extensively studied in the literature. With the growing technology maintenance systems developed. Therefore better reliability level become a vital issue. Especially at foundry facilities subject to this study sustaining a higher reliability level and maintainability is difficult than other faciliti...

Assembly lines are mass production system which improve productivity, flexibility and production quality in industrial systems. Compared to traditional straight lines and parallel lines, U-shaped assembly lines have lots of advantages in terms of performance of workers and production system. Especially, by means of U-shaped layout, improved balanci...

Many companies intend to utilize the robotic systems to improve the performance of their manufacturing systems. Since the robotic systems are complex, it is required to determine the most suitable robot arm at the beginning of the complete design process. However, due to the increase in the number of robot arm alternatives and existence of the mult...

The philosophy of Lean Manufacturing is to do more with less by eliminating non-value-added activities from production process. Lean manufacturing has several tools to improve lead time, cost, and quality performance as well as flexibility of systems. Therefore, the application level of Lean Manufacturing has gone through a significant evolution fr...

Cellular manufacturing system (CMS) is based on the Group Technology philosophy, where similar products having operational similarities are manufactured within the same production unit called a “cell”, to decrease the setup times, manufacturing lead times and work-in process. Fuzzy Set Theory was employed to consider the uncertainty in real life du...

Radio frequency identification (RFID) technology can find a wide range of application areas in many sectors such as automotive, logistics, retail, healthcare, and libraries. RFID can provide long-term benefits to libraries in process, traceability, and security. It can enhance existing barcode systems by providing additional features such as automa...

RFID technology can find a wide range of application areas in many sectors, such as automotive, logistics, retail, etc. Nowadays, RFID becomes more important in aerospace industry. Especially, in aircraft maintenance activities, RFID improves productivity and makes processes faster which reduces cycle times and inventories. In addition, it helps av...

Robotic Systems started to replace the humans in parallel with the development of the robotic technology applications. These robotic systems have complex structure; because they comprise many sub-systems operating in an integrated manner. Therefore, determination of the most suitable industrial robot arm for a production system requires a scientifi...

New part introduction is an important topic because customer expectations expanded and a large variety of parts must be produced by the production systems. Therefore, effect of new parts to the system performance at the operational level should be analysed in order to verify that the new parts can be processed within the cells using the current cap...

The purpose of the paper is the development of a mathematical model and a heuristic approach where the routes are constructed and the service period is determined for the design of an internal milk-run material supply system. The material supply by this system occurs on a just-in-time basis from a central warehouse to several stations of an assembl...

Çalışmamızda kısmî tek parça akışının uygulandığı melez üretim sistemlerinin tasarımı için Aksi-yomlarla Tasarım (AD) yöntemini kullanan bir yol haritası önerilmiştir. Tek parça akışının uygula-nabilmesi için parçaların hücreler arası hareketlerine neden olan istisnai operasyonlar yok edilme-lidir. Çalışmamızda alternatif makineler incelenerek, gel...

In order to respond to part demands on time in an erratic demand environment, a complete road map for the design of hybrid cellular manufacturing systems (HMS) is proposed in this study, based on axiomatic design (AD) principles, such that all functional requirements of a complete HMS design are satisfied by the corresponding design parameters. Wit...

A value stream map is a visual tool to gather, analyze the manufacturing data systematically, and to determine the value-added and non-valueadded activities. It ultimately aims at eliminating or converting wastes during the lean journey. As value is every activity that the customer wants to pay for, all non-value adding activities must be analyzed,...

One-piece flow is a design rule that entails production in manufacturing cells on a ‘make one, check one, and move-on one’ basis (Black, J.T., 2007. Design rules for implementing Toyota Production System. International Journal of Production Research, 45 (16), 3639–3664), which reduces manufacturing lead time significantly. This paper proposes a seq...

Radio Frequency Identification (RFID) technology provides many advantages for pallet pooling systems. In this study, simulation modeling is used to evaluate the impact of RFID on a pallet pooling system. The outputs of the simulation model are used in the cost-benefit analysis of the RFID implementation on a supply chain consisting of a pallet supp...

The purpose of this study is developing a RFID-enabled maintenance management system for aircraft parts that is started at the production stage where the components are tagged and implemented through their all life-cycle that facilitates tracking and maintenance of the components; and developing the information management system that provides the b...

In this study, a goal-programming model is proposed for the design of hybrid cellular manufacturing (HCM) systems, in a dual resource constrained environment, considering many real-world application issues. The procedure consists of three phases. Following an initial phase involving a Pareto analysis of demand volumes and volatility, a machine-grou...

Value Stream Mapping is known as one of the best tools to map complex processes to identify the criticalities in production. Researches show however that it is not effective in non-linear complex systems with several complementary and by-products. Bayesian Casual Mapping is a decision analysis and optimization technique solving cases under uncertai...

Most of manufacturing companies have to cope with erratic part demands and redesign their production systems that can produce the right mix of parts or products, at the right time at these conditions. Therefore, an Axiomatic Design (AD) model was developed to respond erratic demand conditions by designing a hybrid cellular manufacturing system (CMS...

Most of the production systems, which are arranged according to cellular manufacturing, have still been using central storage sites as a continuation of their past habits and they have been supplying materials and parts to the manufacturing cells from these sites. This both violates the independence of the cells from the entire production system in...

Temelleri Toyota Üretim Sistemi'ne dayanan Yalın Düşünce, israfların yok edilerek sistemlerin performanslarının İyileştirilmesini hedeflemektedir. Araştırmamızda ülkemizde faaliyet gösteren 17 adet orta ve büyük Ölçekli kuruluşun fabrikalarının bu tekniklerdeki olgunluk düzeyleri gözlemlenmiş ve hazırlanan anket fabrika yetkililerine uygulanmıştır....