scholarly journals LEAN MANUFACTURING vs COVID-19

MEST Journal ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 1-11
Author(s):  
Zoran Cekerevac ◽  
Zdenek Dvorak ◽  
Lyudmila Prigoda

During the COVID-19 pandemic, companies coped and still must deal with uncertainty greater than ever. Due to the unpredictability of consumer demand, the incredible growth in demand for certain products, dramatic fluctuations in supply chains, and general economic instability, the future still looks uncertain. It is up to the manufacturers to determine how things will be sorted out in the new normality, i.e., which changes will be long-lasting or even permanent. Lean production has emerged in recent decades as an excellent solution to increase the economy and quality of production and meet customer needs. In the market conditions affected by the COVID-19 pandemic, producers work in a significantly changed environment, and many wonder whether lean production remains as relevant and valuable as in the past. The paper discusses lean production from different aspects as the essence of the principles of the lean concept, events during the pandemic, and expectations in the post-Covid period. We used some examples to support the analysis of factors that negatively affect the course of lean production as well as some bright examples of companies that took advantage of lean production in the new conditions. The conclusions consider answer whether lean production will survive the consequences of the COVID-19 pandemic.

2021 ◽  
pp. 147612702110120
Author(s):  
Siavash Alimadadi ◽  
Andrew Davies ◽  
Fredrik Tell

Research on the strategic organization of time often assumes that collective efforts are motivated by and oriented toward achieving desirable, although not necessarily well-defined, future states. In situations surrounded by uncertainty where work has to proceed urgently to avoid an impending disaster, however, temporal work is guided by engaging with both desirable and undesirable future outcomes. Drawing on a real-time, in-depth study of the inception of the Restoration and Renewal program of the Palace of Westminster, we investigate how organizational actors develop a strategy for an uncertain and highly contested future while safeguarding ongoing operations in the present and preserving the heritage of the past. Anticipation of undesirable future events played a crucial role in mobilizing collective efforts to move forward. We develop a model of future desirability in temporal work to identify how actors construct, link, and navigate interpretations of desirable and undesirable futures in their attempts to create a viable path of action. By conceptualizing temporal work based on the phenomenological quality of the future, we advance understanding of the strategic organization of time in pluralistic contexts characterized by uncertainty and urgency.


2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Yong He ◽  
Hongfu Huang ◽  
Dong Li ◽  
Chunming Shi ◽  
Sarah J. Wu

We present a literature review on quality and operations management problems in food supply chains. In food industry, the quality of the food products declines over time and should be addressed in the supply chain operations management. Managing food supply chains with operations management methods not only generates economic benefit, but also contributes to environmental and social benefits. The literature on this topic has been burgeoning in the past few years. Since 2005, more than 100 articles have been published on this topic in major operations research and management science journals. In this literature review, we concentrate on the quantitative models in this research field and classify the related articles into four categories, that is, storage problems, distribution problems, marketing problems, and food traceability and safety problems. We hope that this review serves as a reference for interested researchers and a starting point for those who wish to explore it further.


Author(s):  
M. A. Gurina ◽  
A. D. Moiseev ◽  
A. S. Shurupova

The work examines the experience of using lean technologies in the work of multifunctional centers in the Lipetsk region. The authors substantiated the need to use lean production in order to improve the quality of state and municipal services. Russia had now developed the necessary legal and regulatory framework, which provided the basis for improving public administration and guaranteeing the quality of services. The article summarizes the results of activities created to implement the policy of the state institutions, which were called multifunctional centers (MFCs) on the example of the Lipetsk region. Since 2019, a pilot project “Lean Region”, aimed at optimizing the internal processes of organizations by minimizing losses through the introduction of lean technologies, was launched in the Lipetsk Region,. In the framework of this event, the implementation of a project aimed at reducing queues, creating comfortable conditions for both applicant and staff to stay in the MFC was launched at the site of the Lipetsk Central Department of the UMFC Lipetsk Region. One of the difficult issues to solve the problem of improving the quality of service is the testing of methods for evaluating the services provided, receiving feedback and implementing measures to improve Various lean production tools, including mapping, have been proposed to improve the delivery of State and municipal services. The analysis of the process of providing state and municipal services in Multifunctional Centers revealed various problems of the MFC's work related to the gaps between online and offline interaction channels, the complexity and multiplicity of visits for different services; with obsolete MFC monitoring system; technical optimization of MFC service, etc., is required. To solve these problems, a set of measures aimed at introducing a knowledge management system, an MFC monitoring system and a technical optimization of the MFC service is proposed.


2019 ◽  
Vol 4 (1) ◽  
pp. 129-144
Author(s):  
Wendi Purwanto

           The background of this study is the uniqueness of the management zakat fitrah in Nuguk hamlet by giving to those considered to have a match or harmony, with the hope that the person receiving the zakat fitrah can become the mediator of health, tranquility for the life of muzakki in the future. This article is the result of qualitative field research with descriptive-analysis methods. The conclusion of this study is the management of zakat fitrah in Nuguk hamlet is performed with the classical management model, a model that’s still very simple with the way of muzakki delivering zakat fitrah to the ‘amil individually at their home respectively. The trust among the community in Nuguk hamlet is excessive and not following the ideal concept of shari’a. The management according to the al-Qur`an includes three important element, namely : collection  (Qs. At-Taubah [9] : 103), data collection and distribution (Qs. al-Baqarah [2] : 282 and Qs. At-Taubah [9] : 60), and utilization by using ‘traditional consumptive’ model, that’s zakat fitrah is directly distributed to mustahik through the ‘amil intermediary. The factors the contribute to the weaknesses of zakat fitrah management in Nuguk hamlet include : 1) low quality of education, and 2) oriented to the past management Abstrak            Latar belakang kajian ini adalah karena ada keunikan manajeman zakat fitrah di Dusun Nuguk, yaitu dengan cara menyerahkan kepada orang yang dianggap cocok atau serasi, dengan harapan orang yang menerima zakat fitrah tersebut dapat menjadi perantara kesehatan, ketenteraman bagi kehidupan muzakki dikemudian hari. Artikel ini merupakan hasil dari penelitian kualitatif lapangan dengan metode deskriptif-analisis. Adapun kesimpulan dari penelitian ini adalah manajemen zakat fitrah di Dusun Nuguk dilakukan dengan model manajemen klasik, yaitu suatu model manajemen yang masih sangat sederhana dengan cara muzakki menyerahkan zakat fitrah kepada ‘amil yang bersifat perorangan di rumah ‘amil masing-masing. Kepercayaan masyarakat Dusun Nuguk yang berlebihan kepada ‘amil dirasa kurang sesuai dengan konsep ideal syariat. Adapun manajemen menurut Alquran meliputi tiga unsur penting, yaitu : Pengumpulan (Qs. At-Taubah [9] : 103), Pendataan dan Pendistribusian (Qs. Al-Baqarah [2] : 282 dan Qs. At-Taubah [9] : 60, serta Pendayagunaan dengan menggunakan model ‘konsumtif tradisional’, yaitu zakat fitrah langsung didistribusikan kepada mustahik melalui perantara ‘amil. Faktor yang menyebabkan lemehnya mananjemen zakat fitrah di dusun Nuguk ada dua, yaitu : (1) Rendahnya mutu pendidikan, dan (2) Berorientasi pada manajemen masa lalu.


2011 ◽  
Vol 34 (3) ◽  
pp. 295-329
Author(s):  
Riitta-Liisa Valijärvi ◽  
Joshua Wilbur

Our paper is a report on the past, current and future state of the endangered Pite Saami language (aka: Arjeplog Saami) spoken in Swedish Lapland. Our primary data come from interviews with Pite Saami individuals and our field observations. We estimate the vitality of Pite Saami based on the UNESCO Language Vitality Scale, taking into consideration factors such as the number of speakers, language attitudes and the quality of documentation. We also discuss the possible reasons for the decline of Pite Saami, report on the speakers’ views of other Saami languages and Swedish, consider whether there is a specific Pite Saami identity, describe revitalization efforts already taking place, and discuss the future prospects of the language.


Author(s):  
Abdorreza Naser Moghadasi

Multiple sclerosis (MS) is an autoimmune disabling disease of the central nervous system, and can lead to a wide range of symptoms. Although the most common form of MS is relapsing-remitting, most of the patients also will develop disability in the future due to the natural course of the disease.1,2 The disease onset mostly occurs in 27 years of age.3 Therefore, considering the symptoms and complications of the disease, it can virtually affect the whole life of the patient. Unfortunately, there is not any accurate study of the opinions of patients with MS regarding their illness. However, in the daily work of treatment, one of the well-known cases of severe discomfort expressed by patients is the fear of future disability. This issue is aggravated when a person starts to lose abilities. When the patient experiences disability in walking and a decrease in his/her daily activities, thinking about the future becomes one of his/her major concerns. Most patients express these concerns in their visits. However, a patient who has other abilities such as poetry, writing a story, or painting, can more effectively portray concerns. The painting reported here is the allegorical view of a patient about her disability. The patient is a 37-year-old woman who has had MS for 15 years. Her illness started with the right eye optic neuritis. She has had six attacks during this period and, after 9 years, her disease entered the secondary progressive phase. Her symptom in this stage was the weakness of the right lower extremity, which was gradually deteriorating such as difficulty in walking. Now, she is unable to walk without help. This disability has affected all aspects of her life, and has greatly diminished her quality of life. She has been interested in drawing since childhood, and has drawn as a non-professional artist. One of her paintings reported here (Figure 1), according to the patient herself, reflects her perception and grief over her progressive disability. She believes that she should say goodbye to her ability and good days of the past. She painted herself as someone (when she could walk unrestrictedly) moving away along with a balloon


2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Annik M. Sorhaindo

Abstract Objective Although medication abortion has become more common in high-income countries, the procedure has not yet met early expectations for widening access to abortion. High-quality evidence can serve as a catalyst for changes in policy and practice. To direct research priorities, it is important to understand where quality evidence is concentrated and where gaps remain. High-income countries have developed a body of evidence that may have implications for the future of medication abortion. This literature review assesses the characteristics and quality of published studies on medication abortion conducted in the last 10 years in high-income countries and indicates future areas for research to advance policy and practice, and broaden access. Study design A structured search for literature resulted in 207 included studies. A framework based upon the World Health Organization definition of sub-tasks for medication abortion was developed to categorize research by recognized stages of the medication abortion process. Using an iterative and inductive approach, additional sub-themes were created under each of these categories. Established quality assessment frameworks were drawn upon to gauge the internal and external validity of the included research. Results Studies in the US and the UK have dominated research on MA in high-income countries. The political and social contexts of these countries will have shaped of this body of research. The past decade of research has focused largely on clinical aspects of medication abortion. Conclusion Researchers should consider refocusing energies toward testing service delivery approaches demonstrating promise and prioritizing research that has broader generalizability and relevance outside of narrow clinical contexts. Plain English summary Although medication abortion is more commonly available worldwide, it is not being used as often as people thought it would be, particularly in high income countries. In order to encourage changes in policy and practice that would allow greater use, we need good quality evidence. If we can understand where we do not have enough research and where we have good amounts of research, we can determine where to invest energies in further studies. Many high-income countries have produced research on medication abortion that could influence policy and practice in similarly resourced contexts. I conducted a literature review to be able to understand the type and quality of research on medication abortion conducted in high-income countries in the past 10 years. I conducted the review in an organized way to make sure that the papers reviewed discussed studies that I thought would be important for answering this question. The literature review found 207 papers. Each of these papers were reviewed and organized them by theme. I also used existing methods to determinine the quality of each study. Most of the research came from the US and the UK. Furthermore, most of the research conducted in the past 10 years was focused on clinical studies of medication abortion. In future studies, researchers should focus more on new ways of providing medication abortion to women that offers greater access. Also, the studies should be designed so that the results have meaning for a broader group of people or situations beyond where the study was done.


2018 ◽  
Vol 215 ◽  
pp. 01039
Author(s):  
Nofriady Handra ◽  
Hafni Hafni ◽  
Hendriwan Fahmi

The development of biomass has been an important issue for the past several decades and would remain to be attractive in the future due to its clean, renewable, and carbon–neutral properties. The use of Empty Fruit Bunch (EFB) has been the condition of fibre and conditions of EFB is still fresh. The fiber used has been cut to size between ± 0.5 mm to 5 mm. The purpose of this research is to determine the effect of difference press angle to the quality of briquette. Effect of the angle of the mold on the duration of combustion shows the difference in the time value that is not significant between the angles 65°, 55° and 45°. The rotation of the screw shaft slows down at an angle of 45° with a round of 84.5 rpm, while the rotation of the shaft has increased in rotation at 65° angle with rotation of 90.6 rpm. Differences in the cone angle affect the value of the burning time of the specimen and the rotation of the screw shaft so that it affects the engine performance.


1941 ◽  
Vol 1 (S1) ◽  
pp. 110-111 ◽  
Author(s):  
S. B. Clough

Economics, as it is frequently taught nowadays, consists largely of supply and demand curves. Within their graceful lines are contained the wisdom of the ages—the key to the past and the barometer of the future. If superimposed on one another, these curves have all the esthetic quality of dynamistic drawings. So completely have they dominated economic thinking that when a group of economists considered the possibility of founding an Economic History Association, their first impulse was to establish a demand curve. This was done, as Professor Heaton has intimated, by Miss Anne Bezanson, who canvassed the field. She discovered that four hundred people could be counted upon immediately to support a Journal of Economic History.


Author(s):  
Jovana Stojanović ◽  
Goran Milovanović

The aim of this paper is to evaluate the importance of lean and six sigma concepts and techniques on the basis of systematic knowledge gathered from relevant scientific sources, both for discovering supply chain processes where potential waste can occur and for improving the quality of those processes. The paper will first outline the key features and effects of applying lean and six sigma concepts in manufacturing and supply chains. The focus is on the frameworks and potentials of implementing the lean concept in the Republic of Serbia. Then, the possibilities of integrating these concepts into the lean six sigma concept are presented and its role in eliminating defects in business processes. The penultimate part of the paper outlines the key features of lean supply chain while the final part contains the mathematical frameworks for designing six sigma supply chains.


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