7,392 research outputs found
Recommended from our members
Improving sustainability performance through supplier relationship management in the tobacco industry
Purpose: The purpose of this study is to explore how tobacco manufacturing companies can improve their sustainability performance via effective supplier relationship management (SRM).
Design/methodology/approach: This study has adopted a single case study of an international tobacco company. The primary data involved semi-structured interviews with participants from the case company who are familiar with sustainable SRM in the tobacco industry and are engaging in various techniques to improve sustainability performance.
Findings: The drivers for sustainable SRM commonly identified in literature are observable within the case company. There is also clear evidence of integrating sustainability in its SRM processes. However, the perception of sustainability as a requirement to meet stringent regulations limits its scope and drive in pursuing sustainable SRM. It has also limited supplier sustainability evaluation and performance metrics. Furthermore, the findings of this paper reinforce the importance of a procurement teamâs ability to work with other functional teams in implementing sustainable SRM. The findings also contribute to the emerging literature on the impact of sustainability on supplier segmentation and multi-tier supplier management.
Research limitations/implications: This study provides insight into the varying SRM methods used in the tobacco industry to ensure compliance and improve sustainability performance. However, further research is required to explore the generalisability of the findings of this study derived from a single case study.
Originality/value: The tobacco industry is an under-researched industry, particularly in terms of sustainable operations and supply chain management practices. The findings of this study seem to be relevant to those comparable industries with stringent regulations as well
A First-Order Logic Formalization of the Industrial Ontology Foundry Signature Using Basic Formal Ontology
Basic Formal Ontology (BFO) is a top-level ontology used in hundreds of active projects in scientific and other domains. BFO has been selected to serve as top-level ontology in the Industrial Ontologies Foundry (IOF), an initiative to create a suite of ontologies to support digital manufacturing on the part of representatives from a number of branches of the advanced manufacturing industries. We here present a first draft set of axioms and definitions of an IOF upper ontology descending from BFO. The axiomatization is designed to capture the meanings of terms commonly used in manufacturing and is designed to serve as starting point for the construction of the IOF ontology suite
The Role of mediator organisations in the making of innovation systems in least developed countries. Evidence from Tanzania
This paper examines the linkages and interactive learning processes between foreign and local actors in an innovation system in Tanzania. Specifically, the importance of a mediator organization to absorb and transfer knowledge from the foreign to the local sector is examined. The potential application of emerging knowledge spillovers to wider local users is thus evaluated. Empirical evidence suggests that although the potential exists for the wider application of technology and knowledge spillovers, a number of key constraints partly hinder the achievement of this potential and the proper functioning of an innovation system.Innovation system; Technology and knowledge transfer; Multinational Enterprises (MNEs); Foreign direct investment (FDI); least developed countries (LDCs); intermediate organisation; Tanzania
Kinetic models of migration of melamine and formaldehyde from melamine kitchenware with data of liquid chromatography
European legislation has established a specific migration limit (SML) of 15âmgâkgâ1 for formaldehyde and 2.5âmgâkgâ1 for melamine. Formaldehyde resins are used in the manufacture of melamine kitchenware. Formaldehyde is listed in group 1 of the IARC list of carcinogenic compounds. To determine the quantity of formaldehyde and melamine as potential migrants from different types of melamine kitchenware (glass, mug, cutlery, big cup and bowl), a HPLC-DAD method has been implemented. This method is an alternative to the ones proposed in technical guidelines to determine formaldehyde by UVâvis spectrophotometry and melamine by HPLC. The final objective was to fit the migration kinetic curves of these two analytes in melamine kitchenware.
After the method was validated, decision limit (CCα) and detection capability (CCÎČ) were calculated for both analytes, when the probabilities of false positive (α) and false negative (ÎČ) were fixed at 0.05; being CCÎČ 0.269âmgâLâ1 and 0.311âmgâLâ1 for melamine and formaldehyde respectively. CCα and CCÎČ were also calculated at the SML of both analytes.
The migration testing were conducted with simulant B (3% acetic acid (w/v) in aqueous solution), the conditions of each exposure being 70â°C for 2âh. The quantities of melamine and formaldehyde found in the third exposure of the total kitchenware analysed were between 0.21 and 1.09âmgâLâ1 and between 0.55 and 3.86âmgâLâ1, respectively.
Migration kinetic curves were built for each type of kitchenware with the data of sixteen consecutive migration cycles (70â°C each 30âmin). The SML for melamine was surpassed in the mug, in the big cup and in the bowl after eleven, thirteen and one cycles, respectively.
When more cycles were carried out in the mug, the values of the accumulated quantity of formaldehyde and melamine were 15.30 and 6.79âmgâLâ1, respectively, after thirty-two cycles. Both concentrations exceeded the corresponding SML.MINECO (AEI/FEDER, UE) and ConsejerĂa de EducaciĂłn de la Junta de Castilla y LeĂłn through projects CTQ2017-88894-R and BU012P17 respectively (all co-financed with FEDER funds
Complementary resources, entry mode and the performance of diversified subsidiaries: empirical research based on China National Tobacco Corporation
This dissertation explores the relationship between the complementary resources and
entry mode in diversification transformation strategy of China National Tobacco Corporation
adopting resource dependence theory and resource base theory. We use "multiple regression
empirical analysis method" and "longitudinal case study" approach to test whether the
complementary resources and entry mode are related to diversified subsidiaryâs performance.
We address two main research questions: a) how does diversified subsidiaryâs dependence on
the main businessâ resources affect its performance? And b) whether do entry mode have
influence on the relationship between the complementary resources and diversified
subsidiaryâs performance.
We conduct an extensive literature review and proposed relevant theoretical hypotheses
of the relationship among the complementary resources, entry mode, and diversified
subsidiaryâs performance. We survey on resource complementarity, entry mode and
performance based on questionnaire distributed to the top management in both CNTC and its
subsidiaries and verify our hypotheses using raw date from 196 valid questionnaires. It is
found that remarkable positive relation is only found between resource complementarity and
diversified subsidiaryâs financial performance, and diversified entry modes exert a moderating
effect on resource complementarityâs relations with diversified subsidiaryâs performance,
financial performance and growth performance. Further, we explore the evolving relationship
of the resource dependency and entry mode in the corporationâs diversification in a dynamic
perspective based on a longitudinal case drawing on a rich array of documents from CNTCâs
progressing in strategic transformation. Our findings have practical significance in the design
of a gradual diversification transformation strategy, and especially to managers of CNTC
which diversification has become an inevitable choice due to increasingly tight smoke-free
policy.Esta dissertação explora a relação entre os recursos complementares e modo de entrada
na estratégia de transformação de diversificação da China National Tobacco Corp, adoptando
a teoria de dependĂȘncia de recurso e teoria de base de recurso. Utilizamos a abordagem do
"mĂ©todo de anĂĄlise empĂrica de regressĂŁo mĂșltipla" e "estudo de caso longitudinal" para testar
se os recursos complementares e o modo de entrada estĂŁo relacionados como desempenho do
subsidiårio diversificado. Abordamos duas questÔes de pesquisa principais: a) como é que a
dependĂȘncia do subsidiĂĄrio diversificado nos recursos do negĂłcio principal afecta o seu
desempenho? E b) se o modo de entrada tem influĂȘncia na relação entre os recursos
complementares e o desempenho do subsidiĂĄrio diversificado.
Realizamos uma revisĂŁo literĂĄria extensa e propomos as hipĂłteses teĂłricas relevantes da
relação entre os recursos complementares, modo de entrada e desempenho do subsidiårio
diversificado. Pesquisamos a complementaridade de recurso, modo de entrada e desempenho
com base no questionĂĄrio distribuĂdo na gestĂŁo de topo da CNTC e suas subsidiĂĄrias e
verificamos as nossas hipĂłteses utilizando os dados de 196 questionĂĄrios vĂĄlidos.
Descobrimos que a relação positiva notåvel é unicamente encontrada entre a
complementaridade de recurso e o desempenho financeiro do subsidiĂĄrio diversificado, e
modos de entrada diversificados exercem um efeito moderado nas relaçÔes de
complementaridade de recurso com o desempenho do subsidiĂĄrio diversificado, desempenho
financeiro e desempenho de crescimento. Além disso, exploramos a relação em evolução da
dependĂȘncia de recurso e modo de entrada na diversificação da corporação numa perspectiva
dinĂąmica com base num desenho de caso longitudinal sobre uma matriz rica de documentos
do progresso de transformação estratĂ©gica da CNTC. Os nossos resultados tĂȘm um significado
pråctico no design de uma estratégia de transformação de diversificação gradual, e
especialmente para os gestores da CNTC os quais a diversificação se tornou uma escolha
inevitĂĄvel devido Ă polĂtica contra o tabaco cada vez mais apertada
Applications of aerospace technology in biology and medicine
Utilization of National Aeronautics and Space Administration (NASA) technology in medicine is discussed. The objective is best obtained by stimulation of the introduction of new or improved commercially available medical products incorporating aerospace technology. A bipolar donor/recipient model of medical technology transfer is presented to provide a basis for the team's methodology. That methodology is designed to: (1) identify medical problems and NASA technology that, in combination, constitute opportunities for successful medical products; (2) obtain the early participation of industry in the transfer process; and (3) obtain acceptance by the medical community of new medical products based on NASA technology. Two commercial transfers were completed: the Stowaway, a lightweight wheelchair that provides mobility for the disabled and elderly in the cabin of commercial aircraft, and Micromed, a portable medication infusion pump for the reliable, continuous infusion of medications such as heparin or insulin. The marketing and manufacturing factors critical to the commercialization of the lightweight walker incorporating composite materials were studied. Progress was made in the development and commercialization of each of the 18 currently active projects
Performance improvement of production process using lean six sigma and overall labor effectiveness approach (case study : CV Cempaka Tulungagung)
Labor performance can be very critical to the company which is daily
required to produce continuously. As a company that use manual labor in the
production process, decline in labor performance may become thing that will
disrupt the existing production schedule can even more makes companies stop
operate for a while. The quality of the output is very dependent on the labor
performance. The better the labor performance, the better the result that the
company gets. CV. Cempaka is a company that produces cigarette. Cigarette
products produced by this company are a filter cigarette product produced by
machine and non-filter cigarette product that produced manually by labor. The
company is currently focused on doing improvement to win the market and
maintain customer loyalty.
The problems faced by the company are the high number of workers
absent due to illness and poor quality. To overcome these problems, it is
necessary to use Lean Six Sigma methods which focus on waste reduction.
Moreover, this method is used to minimize the resources that must be issued by
the company in doing improvement, because by using this method, the focus will
be more obvious, so there is no decision-making errors. In order to deepen the
analysis and adjusting the observed object, then the labor performance will also be
calculated using Overall Labor Effectiveness (OLE) and considered. Step of this
study is based on Six Sigma DMAIC method. Use Big Picture Mapping (BPM),
E-Downtime and Classification Activity to identify the problem. Based on these
methods obtained the critical waste, namely Environmental Health and Safety
(EHS) waste and Defect waste. As for the search for critical causes of those
critical waste, use Pareto chart, Root Cause Analysis (RCA), and Failure Mode
and Effect Analysis (FMEA). Based on the result found six alternatives, then
parsed to be three alternatives. Of these three alternatives, then selected two
alternatives of the results of the Value Engineering calculation, i.e. doing periodic
maintenance, provide backup tools and chair replacement
The Application of Analytic Hierarchy Process in Supplier Selection for Specialty Paper Making Company, A case study in Anhui Welbon Gaosen Paper Co.,Ltd
Majority of enterprises choose to implement JIT procurement model to face the marketing fierce competition in recent decades. Single sourcing supplier is the main characteristic in JIT procurement, thence, selecting a suitable supplier become increasingly important. The purpose of the research is to select the most suitable supplier for the case company. More specifical, to identify supplier selection criteria for the case company, then exploiting a flexible analytic model which is AHP to help the case company choose a suitable supplier for implementing JIT Procurement, finally suggestions are given for case company in supplier relationship management, which based on implementing JIT Procurement.
The study begins with literature review of purchasing behavior, supplier related theory and AHP method. Afterwards, qualitative research method of interview and quantitative research method of questionnaires were utilized to identify evaluation criteria and collect pair-wise comparison data for judgment matrixes. Finally, eigenvectors and eigenvalues of judgment matrixes were calculated for ranking priorities and all vectors were passed by consistency verification.
Based on the result from previous research, supplier with the total highest score becomes the most suitable alternative. In addition, suggestions of supplier relationship management are given for the sake of success further implementation of JIT procurement in the case company.fi=OpinnÀytetyö kokotekstinÀ PDF-muodossa.|en=Thesis fulltext in PDF format.|sv=LÀrdomsprov tillgÀngligt som fulltext i PDF-format
Microplastics and microfibers pollution: study of their environmental issues and evaluation of reduction alternatives
This work is the compilation of the research carried out by Ph.D. student, Francisco Belzagui Elder, during his predoctoral stage in the Environmental Engineering research group (ENMA) of the Institute of Textile Research and Industrial Cooperation of Terrassa (INTEXTER) that belong to the Polytechnic University of Catalonia (UPC).The microplastics (MPs) are small fragments (length < 5 mm) of non-chemically modified and/or non-biodegradable polymers. Rough estimations point that there are between 15 to 51 trillion buoyant items of MPs in marine environments and 14 million tons in the top 9 cm of sediments of the worldâs oceans.
According to the âEuropean Chemical Agencyâ, chemically treated and/or nonbiodegradable textile microfibers (MFs) are a type of microplastics with a length to diameter ratio higher than 3 mm and a maximum length of 15 mm. One of the most renowned sources of MFs are those detached from every cycle of a textile article laundering. These are considered one of the most environmentally threatening pollutants as they have a continuous and cumulative entrance to the environment. Due to their small diameter they are more prone to be ingested by organisms, so high concentrations have been found in products for human consumption, as shellfish and tap water.
In this research, the microfibersâ detachment rates of finished garments were evaluated.
Results showed that MFs detachment ranges between 175 to 560 MFs/g or 30â000 to 465â000 MFs/m2 of garment. In addition, there was a high correlation between the MFs detachment and the textile article superficial density.
As there are still no accurate models to assess the MFs pollution, in this thesis a method to estimate the mass flow of MFs detached from household laundry that reaches aquatic environments was developed. The method considered the following parameters: (1) the detachment rate of microfibers from different textile garments, (2) the volume of laundry effluents, (3) the percentage of municipal water that is treated, (4) the type of used-water treatment applied, and, (5) the proportion of front- versus top-loading washing machines. In this way, 0.28 million tons of microfibers per year were estimated to reach aquatic environments. Moreover, hypothetical situations were simulated to evaluate the reduction of microfibers by modifying some parameters at different levels (consumer, government entities, and industry). It was found that depending on the implanted alternatives, microfibers that reach the aquatic environments could be reduced between 30% to 65%.
On the other hand, the current status of MFs as pollutants is reviewed, discussing possible alternatives from the manufacturing until the final disposition of MFs. There are many alternatives to reduce these pollutants but also gaps that need to be addressed.
Some viable solutions to retain them are currently on the market. However, until this thesis was over, there was no single proposal on the destination of the retained MFs.
Hence, in this research a filter has been developed to retain the MFs and a proposal to treat the retained MFs was evaluated, following the circular economy philosophy. Both processes were patented.
The developed filtering system is totally made of recycled polymers. Its performance is higher than 97% of MFsâ removal from the washersâ effluents with a replacement time for the cartridge from 30 to more than 40 washing cycles. The retained MFs are subsequently immobilized in a polymeric matrix, turning them into a composite.
Different proportions of polyester MFs were mixed with low-density polyethylene for immobilization of MFs. Results showed that the optimum composition, which improved some of the tensile mechanical properties, was 10% polyester MFs in the polymeric matrix.
Finally, other sources of MFs were studied, specifically, cigarette butts. These contains the smoked filters (SF) and unsmoked rests of tobacco. SFs are hazardous debris composed of > 15â000 strands that can be detached as MFs. Their detachment rate, acute aquatic toxicity, and the aquatic-, thermooxidative-, and photo-degradability were evaluated. It was found that SFs detach approximately 100 small MFs (< 0.2 mm) per day. About 0.3 million tons of potential MFs might be annually reaching aquatic environments from this source. A significant difference of eco-toxicity and a low degradability rate was found when MFs are present in the leachate generated by the SFs.
This implies that MFs from SFs constitute an important source of microplastics, which might partially explain the high concentration of artificial polymers found in the deep-sea sediments.This work was supported by INDITEX (2018-2021) through the call âDoctorats Industrials 2018â. This thesis was granted by the âSecretaria d'Universitats I Recerca del Departament d'Empresa I Coneixement de la Generalitat de Catalunyaâ (AGAUR) with the Grant âDoctorats Industrials 2018 DI 022â.
Part of the chapter 7 of this thesis was funded by UPC through the project âMBBR carriersâ (R-02058 â Ajut als instituts 2021).Postprint (author's final draft
- âŠ