Özdemir, Deniz

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Profile URL
https://gcris.yasar.edu.tr/handle/123456789/11978
Name Variants
Job Title
Prof.Dr.
Email Address
Main Affiliation
01.01.06.03. Lojistik Yönetimi Bölümü
Status
Former Staff
Website
ORCID ID
Scopus Author ID
7003493708
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
B-2384-2008

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
0
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GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
0
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QUALITY EDUCATION4
QUALITY EDUCATION
0
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GENDER EQUALITY5
GENDER EQUALITY
0
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CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
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AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
0
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DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
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REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
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SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
0
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RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
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CLIMATE ACTION13
CLIMATE ACTION
0
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LIFE BELOW WATER14
LIFE BELOW WATER
0
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LIFE ON LAND15
LIFE ON LAND
0
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PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
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PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
0
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Documents

11

Citations

332

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Documents

11

Citations

242

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Scholarly Output

4

Articles

3

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0/0

Supervised MSc Theses

0

Supervised PhD Theses

1

WoS Citation Count

37

Scopus Citation Count

52

Patents

0

Projects

1

WoS Citations per Publication

9.25

Scopus Citations per Publication

13.00

Open Access Source

1

Supervised Theses

1

JournalCount
European Journal of Operational Research1
Journal of Applied Research and Technology1
Известия Российской академии наук. Теория и системы управления1
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Now showing 1 - 4 of 4
  • Thumbnail Image
    Article
    Citation - WoS: 16
    Citation - Scopus: 19
    Multiperiod and stochastic formulations for a closed loop supply chain with incentives
    (PLEIADES PUBLISHING INC, 2014) I. Litvinchev; Y. A. Rios; D. Ozdemir; L. G. Hernandez-Landa; Litvinchev, I.; Ozdemir, D.; Rios, Y. A.; Hernandez-Landa, L. G.
    Reverse logistics network design problem we focus on is about locating distribution centers inspection centers and remanufacturing facilities and determining the acquisition price as well as the amount of returned goods to be collected depending on the unit cost savings and competitor's acquisition price. We introduce the multiple periods setting and stochastic demand formulated by scenarios. We develop two mathematical programming models to determine the pricing strategy of the recovered products together with the optimal network that must be designed to be the most profitable closed cycle. Our methodology is based on a Golden Section Search with some flexibility that enables us to fix the used product acquisition price and then solve the model as an integer linear programming. Moreover we establish dependent size fixed costs of opening a distribution an inspection and a remanufacturing centers and show that they have a strong impact on the Golden Section search behavior.
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    Article
    Citation - WoS: 1
    Citation - Scopus: 4
    Daily logistics planning with multiple 3PLs: A case study in a chemical company
    (Universidad Nacional Autonoma de Mexico Centro de Ciencias Aplicadas y Desarrollo Tecnologico, 2014) Gökberk Ozsakalli; Deniz Özdemir; Sel Ozcan; B. Sarioglu; A. Dincer; Ozsakalli, G.; Dincer, A.; Ozcan, S.; Ozdemir, D.; Sarioglu, B.
    The importance of efficient logistics management for chemical industry considered to be one of the important issues in process industries. Motivated from a chemical factory operating in Turkey cost efficient daily logistics planning using multiple third party logistics providers (3PL) with different contracting schemes are analyzed. In order to reduce planning time and maximize the physical vehicle capacity utilization problem of the company is formulated as a mixed integer mathematical model and a two-phase solution approach is proposed. Using the real life daily shipment requirement data the proposed model and the solution methodology is tested. Furthermore impact of various company practices and types of different transportation pricing schemes are analyzed to better design 3PL contracts. The initial results are very promising where optimum solution for large scaled problem can be obtained in seconds and the daily shipment planning can be updated dynamically whenever it is necessary. The analysis indicates that cost savings through holistic planning is robust to contracting schemes and specific clauses are not always needed to guarantee certain service quality. We believe that the efficiency achieved through the integration of such techniques can become highly attractive for further applications in the industry. © 2021 Elsevier B.V. All rights reserved.
  • Thumbnail Image
    Article
    Citation - WoS: 20
    Citation - Scopus: 29
    Multi-location transshipment problem with capacitated production
    (ELSEVIER SCIENCE BV, 2013) Deniz Ozdemir; Enver Yuecesan; Yale T. Herer; Yücesan, Enver; Herer, Yale T.; Özdemir, Deniz; Yuecesan, Enver
    We consider coordination among stocking locations through replenishment strategies that explicitly take into account lateral transshipments i.e. transfer of a product among locations at the same echelon level. Our basic contribution is the incorporation of supply capacity into the traditional transshipment model. Our goal is to analyze the impact on system behavior and on stocking locations' performance of the fact that the supplier may fail to fulfill all the replenishment orders. We therefore formulate the capacitated supply scenario as a network flow problem embedded in a stochastic optimization problem which is solved through a sample average approximation method. We find that depending on the production capacity system behavior can vary drastically. Moreover in a production-inventory system we find evidence that either capacity flexibility (i.e. extra production) or transshipment flexibility (i.e. pooling) is required to maintain a desired level of service. (C) 2012 Elsevier B.V. All rights reserved.
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    Doctoral Thesis
    ERP: Impact of Alignment on Perceived Business Performance
    (2017) Gökçe, Elif Gülfırat; Özdemir, Deniz; Taşgetiren, Mehmet Fatih
    İşletmeler, Kurumsal Kaynak Planlaması (ERP) sistemlerini devreye alarak çeşitli kazanımlar sağlamayı hedeflerler. ERP projeleri genelde yüksek maliyetli yatırımlardır ve proje sürecinde bir aksama olması kurumun faaliyetlerini tehlikeye atabilir. ERP kurulumlarının başarıya ulaşmasında etkili olan faktörler uzun bir süreden beri incelenmektedir. Bu çalışmada, ERP kurulumu ile birlikte işletmede gözlenen performans iyileşmelerine etkisi olan faktörler için bir çerçeve oluşturulmuştur. Bu çerçeve, önceden tanımlanmış Teknoloji-Organizasyon-Çevre yapısı üzerine kurgulanmıştır. Bu çalışmada farklı olarak ERP kullanımının işletme performansına olan etkisi süreç ve sistem uyumu üzerinden incelenmiştir. ERP süreç ve sistem uyumu, ERP uygulamasını devreye alan kurumun iş süreçleri ile kullanılmaya başlanan sistemin sağladığı işlevsellik arasındaki örtüşme olarak tanımlanmıştır. Çeşitli araştırmalar süreç ve sistem uyumu arttıkça, kurumun ERP sisteminden sağladığı performans iyileştirmelerinin arttığını desteklemektedir. Bu nedenle süreç ve sistem uyumuna etkide bulunan faktörlerin anlaşılması, ERP kurulumunun performansa etkisini anlamak açısından önemlidir. Bu araştırmada, süreç ve sistem uyumu ihtiyaç belirleme ve kurulum kalitesi üzerinden kurgulanmıştır. İhtiyaç belirleme ve kurulum kalitesi ERP örgütsel faktörlerine dayandırılmıştır. Türkiye'de ERP projelerine katılmış kişilerden, anket yöntemi ile veri toplanmıştır. Bu veriler kısmi en küçük kareler (PLS) yöntemiyle analiz edilmiştir. Araştırma modelinin değerlendirilmesi sonucunda, sistem ve süreç uyumu ile algılanan iş faydaları arasında pozitif bir ilişki görülmektedir. Kurulum kalitesinin, sistem ve süreç uyumuna olumlu etkisi görülmüştür. İş süreci becerilerinin, kurulum kalitesine olumlu etkisi istatiksel olarak anlamlı iken, diğer değişkenler için anlamlı bir ilişki gözlenmemiştir. Araştırmanın sonucunda, ERP kurulum sürecinde etkin iş süreci becerilerinin kullanımının daha yüksek seviyede sistem ve süreç uyumuna, bunun üzerinden de algılanan iş faydalarında artışa yol açtığı sonucuna varılmıştır.