eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Selected applications of metal nanoparticles in medicine and pharmacology
Renata Dobrucka
1
Poznan University of Economics and Business, Poznan, Poland
Background: Nanotechnology is a field of science and technology that has been developing rapidly for several decades. It is considered to be one of the major activity areas of the scientific, technological and innovation sectors. The use of innovative technologies enables the modification and production of nanomaterials with new or enhanced properties. Metal nanoparticles are different from their bulk counterparts, and they have become the subject of growing attention due to their unique characteristics caused by their different size as well as their potential applications.
Methods: As a result, they are used in many different areas of life. This work presents the most important examples of metal nanoparticle applications in pharmacology, cancer therapy and stomatology.
Results and conclusion: Nanotechnology makes it possible to quickly transform the results of basic research into successful innovations, and develop leading technologies whose results can be implemented in large international groups of companies and small businesses in all sectors of the economy. As such actions require a properly functioning supply chain, the development and implementation of nanotechnology products will not reach the appropriate level without the proper logistics.
http://www.logforum.net/vol15/issue4/no1/15_4_1_19.pdf
metal nanoparticles
medicine
pharmacology
cancer therapy
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
The use of a hybrid model of the expert system for assessing the potentiality of manufacturing the assumed quantity of wire harnesses
Anna Burduk
1
Katarzyna Grzybowska
2
Andrii Safonyk
3
Wroclaw University of Technology, Wroclaw, Poland
Poznan University of Technology, Poznan, Poland
National University of Water and Environmental Engineering, Rivne, Ukraine
Background: Control plays the main role in ensuring the stability of production processes, while digital models of processes and methods of artificial intelligence are used more and more commonly in it. Production of highly diversified items in small lots at low inventory levels is characterised by a much lower stability as compared with large-lot manufacturing. Additionally, innovations created for item
http://www.logforum.net/vol15/issue4/no2/15_4_2_19.pdf
production system
risk assessment
artificial neural networks
fuzzy logic
stability
variability
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Industry 4.0: state of the art and research implications
Monika Kosacka-Olejnik
1
Rapeepan Pitakaso
2
Poznan University of Technology, Poznan, Poland
Faculty of Engineering Ubonratchathani University, Ubon Ratchathani, Thailand
Background: Over the last few years, the Industry 4.0 concept has attracted attention among both academics and practitioners. Industry 4.0 is a very broad domain including production processes, efficiency, data management, relationship with consumers, competitiveness, and much more. Therefore, the aim of the paper was to analyze the main contributions published on the topic of Industry 4.0.
Methods: The literature review method was used to verify current knowledge on the Industry 4.0 topic, with the use of developed methods for literature review research dedicated to it.
Results: On the basis of the literature review procedure, answers to the research questions were obtained: RQ1: Is the “Industry 4.0” topic still relevant for researchers? RQ2: Does the national policy on Industry 4.0 influence the research interest in Industry 4.0? RQ3: What are the key components of Industry 4.0? RQ4: What are the implications of Industry 4.0 for other research topics?
Conclusions: This paper contributes theoretically to the development of the literature on Industry 4.0. Results obtained from the research not only summarise the current research activities but also indicate existing potential research directions. The findings of this review can be used as the basis for future research on Industry 4.0 and related topics, as well as a guideline for making a literature review.
http://www.logforum.net/vol15/issue4/no3/15_4_3_19.pdf
Industry 4.0
literature review
state of art
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Two-storage inventory model for deteriorating items with price dependent demand and shortages under partial backlogged in fuzzy approach
Susanta Kumar Indrajitsingha
1
Padmanava Samanta
2
Lakshmi Kanta Raju
3
Umakanta Misra
3
Saraswati Degree Vidya Mandir, Odisha, India
Berhampur University, Odisha, India
NIST, Odisha, India
Background: In this paper we developed a fuzzy two-warehouse (one is OW, the own warehouse and other is RW, the rented warehouse) inventory model of deteriorating items with price dependent demand rate and allowed shortages under partially backlogged conditions. Since the capacity of any warehouse is limited, the supplier has to rent a warehouse for keeping the excess units over the fixed capacity W of the own warehouse in practice. The rented warehouse owed higher holding cost than the own warehouse. In this paper we considered holding cost, deterioration rate, shortages cost and lost sales as triangular fuzzy numbers.
Methods: Graded Mean Integration Representation is used to defuzzify the total cost function. The result obtained by this method is compared with crisp model with the help of a numerical example. Sensitivity analysis is accomplished to changing one parameter at a time and keeping others at their archetypal.
Results and conclusions: It has been proved that graded mean integration representation method gives more accurate result as compare to crisp model.
http://www.logforum.net/vol15/issue4/no4/15_4_4_19.pdf
Inventory
Two-Warehouse System
Deterioration
Shortages
Triangular Fuzzy Number
Graded Mean Integration Representation Method
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Decomposition analysis of factors influencing selected types of vehicle transport in Poland
Grzegorz Szyszka
1
Ryszard Cierpiszewski
2
Andrzej Korzeniowski
1
Poznan School of Logistics, Poznań, Poland
Poznań University of Economics and Business, Poznań, Poland
Background: The paper presents the correlation between selected types of cargo transport by vehicle transport in Poland in the period 2008-2017 and selected factors influencing the types of cargo transport. The aim of this paper is to determine the correlation between vehicle transport of food products and of palletized goods, vehicle transport in total and gross domestic product (GDP).
Methods: Decomposition was conducted using the LMDI method (Logarithmic Mean Divisia Index). Three indicators were used in the analysis. The first was related to the increase and decrease in the interest in vehicle transport of food products and palletized products, the second was related to vehicle transport in general, and the third was related to changes in gross domestic product (GDP).
Results: The yearly average increase in the transport of food products in the period 2008-2017 was approximately 3.31 billion tonne-km/year and palletized goods was approximate
http://www.logforum.net/vol15/issue4/no5/15_4_5_19.pdf
road transport
transport of food products
vehicle transport of palletized goods
decomposition analysis
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
An examination of Lotka’s law & author’s productivity in the field of supply chain management
Anil Kumar
1
Group of Institutions Bhopal, MP, India
Background: The development of supply chains appeared in a structured way in the 1990s. Previous studies have not examined in detail the research productivity patterns of the distribution of individual supply chain management authors with a lengthy time frame. Previous studies have also not set standards of individual research productivity, in terms of both quantity and quality, which are necessary to be ranked among the leading contributors in the field.
Methods: To address the above mentioned issue in this field, the paper examine 458 articles written by 980 authors from 2005 through 2014. The study presents six metrics concerning quality and quantity of productivity and identifies the aggregate productivity standards necessary for individual authors to be ranked at various positions in the field of supply chain management. In the last, the paper examines the validity of Lotka's law to authorship pattern in the field of supply chain management. Lotka's law was tested using generalized form, and K-S goodness-of-fit tests were applied.
Results: This study provides a set of comprehensive, useful and recent standards for individual publication productivity in supply chain management discipline within the selected journal outlets. The findings suggests that to be in position top 10, top 20, and top 50 an author required h-index value 4, 3, and 2 respectively. This work contributes to the literature by identifying standards of individual research performance across six different metrics of quantity and/or quality. The results can inform current supply chain management scholars and administrators of productivity standards as implicitly established by the body of scholars in the SCM field.
Conclusions: The result found that the author productivity distribution data in the supply chain management field follow Lotka’s law. The results of this study provide a new outlook on supply chain management research. In the last, major research areas and potential future directions were also provided.
http://www.logforum.net/vol15/issue4/no6/15_4_6_19.pdf
supply chain management
benchmarking
authorship pattern
Author’s productivity
K-S test
Lotka’s law
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Marketplace as a key actor in e-commerce value networks
Arkadiusz Kawa
1
Magdalena Wałęsiak
2
Poznań University of Economics and Business, Poznań, Poland
GS Polska, Poznań, Poland
Background: E-commerce is one of the most dynamic and important sectors of the Polish economy. Its development is driven by rapidly expanding Internet access. Worldwide e-commerce is dominated by marketplaces with a great market share. There are both advantages and disadvantages related to the use of marketplaces, for sellers and buyers alike.
The aims of this paper are to indicate the nature of marketplaces, develop a classification for them, and also to indicate new challenges related to them and development directions in Poland.
Methods: For the needs of this paper, research was conducted using the methods of direct observation and analysis of primary and secondary sources. The primary materials included data obtained from companies providing marketplaces in Poland and abroad, and the secondary ones – reports, studies and Internet sources. In addition, in-depth interviews were performed with experts on marketplaces.
Results: The article provides a detailed description of marketplaces. The authors describe the division and characteristics of marketplaces and discussed the potential trends in this field. It presents marketplace-related benefits and disadvantages, and how the authors classify them.
Conclusions: Marketplaces create new opportunities for expansion on a larger scale for online sellers. Companies do not need to invest in a sales platform or have knowledge of legal aspects. Moreover, they have access to innovative solutions. Obviously, there are many disadvantages, such as very strong competition from numerous sellers in one place, becoming dependent on this sales channel, and neglecting the growth of the seller's own online shop.
http://www.logforum.net/vol15/issue4/no7/15_4_7_19.pdf
e-commerce
marketplace
value network
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Healthcare supply chain management: macro and micro perspectives
Duangpun Kritchanchai
1
Sineenart Krichanchai
2
Soriya Hoeur
1
Albert Tan
3
Mahidol University, Nakhonpathom, Thailand
Silpakorn University, Nakhon Pathom, Thailand
Malaysia Institute for Supply Chain Innovation, Selangor, Malaysia
Background: The concept of supply chain management is to coordinate and collaborate among supply chain players in order to achieve system efficiency. Supply chain coordination and collaborations deal with the connecti
http://www.logforum.net/vol15/issue4/no8/15_4_8_19.pdf
healthcare service
supply chain management
information management
operations management
Thailand
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Importance of key success factors for local and international ngos in humanitarian supply chain
Muhammad Azmat
1
Sebastian Kummer
1
Vienna University of Economics and Business, Vienna, Austria
Background: Local and international non-governmental organizations play a pivotal role in a relief operation. However, as the number of disasters and their complexity is increasing, the challenges these organizations face during a relief operation are also growing exponentially. It is crucial for relief organizations to not only understand but also to prioritize the factors, which can make their supply chain work better. Therefore, this research aims at understanding the relationship between the key success factors, which can dramatically enhance the efficiency and effectiveness of the relief operation. Moreover, this study also highlights how LNGOs and INGOs differentiate between these KSFs and how they rank them.
Methods: To address the objective of this study, the Likert scale style questionnaire was developed and distributed online to all such NGOs (worldwide), which take part in the relief operation. The collected data was then tested for its empirical significance on SPSS using Spearman’s Rho, Pearson Chi-square, to understand the relationship and importance of these factors. Whereas, the odds ratio was calculated to rank each KSF.
Results: The results of the study indicate that there exist strong correlation among all selected factors and all KSFs affect INGOs supply chain at least twice as much as they do of LNGOs.
Conclusion: According to our findings and in the light of literature discussed in this research, a successful relief supply chain depends not only on greater and stronger coordination & collaboration but also on sharing information and resources among LNGOs and INGOs.
http://www.logforum.net/vol15/issue4/no9/15_4_9_19.pdf
KSF
Key Success Factors
CSF
Critical Success Factors
Humanitarian Supply Chain
NGO
eng
Poznan School of Logistics
Logforum
1734459X
2019-12-30
15
4
article
Towards exploring bullwhip effects in natural gas supply chain
Davor Dujak
1
Dario Šebalj
1
Adam Koliński
2
Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
Poznań School of Logistics, Poznań, Poland
Background: Bullwhip (or Forrester) effect is well studied phenomenon in many supply chains where small variations in customer demand have a tendency to become larger and larger when created by upstream members of the supply chain resulting in unneeded increasing in upstream inventory. However, there is substantial deficiency of scientific research on bullwhip effect in natural gas supply chain. Due to relatively smaller number of supply chain members and huge volumes flowing through the natural gas supply chain, benefits of decreasing or even eliminating negative consequences of bullwhip effect could be enormous. This paper aims to provide more insights in reasons for the occurrence, nature and consequences of bullwhip effect by measuring and analysing it in natural gas supply chain of Republic of Croatia.
Methods: After observation of orders and consumption from natural gas supplier, comparisons were made on monthly and yearly level. Well known and accepted metrics were used to calculate existence of bullwhip effect.
Results: Results didn’t show existence of bullwhip effect on lowest level of natural gas supply chain what is in accordance with other researches. Best solution for mitigating potential or real bullwhip effect are information sharing while working on joint demand forecast in supply chain and use of newer forecasting method
Conclusion: Expected results should contribute to better understanding of bullwhip phenomenon in natural gas supply chain, but also provide possible avoiding strategies based on building trust in supply chain and on appropriate use of information and communication technologies.
http://www.logforum.net/vol15/issue4/no10/15_4_10_19.pdf
natural gas
bullwhip effect
supply chain
information distortion