The Experts below are selected from a list of 981 Experts worldwide ranked by ideXlab platform
Martí Meritxell - One of the best experts on this subject based on the ideXlab platform.
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EVALUATION OF HEALTHY AND ECOLOGICAL FRIENDLY FLAME RETARDANTS FOR TEXTILES USING THERMAL ANALYSIS
2019Co-Authors: Manich Albert, Pérez-rentero Sofía, García-alonso M. C., Coderch Luisa, Martí MeritxellAbstract:Flame Retardants (FR) are a group of anthropogenic environmental contaminants used at a relatively high concentration in many applications. Currently, the largest marked group of FRs is halogenated FR, and many of them are considered toxic, persistent and bio accumulative. Non-halogenated alternatives are a possible solution for the problem, but there is a lack of knowledge concerning environmental impact, health risks during the production process and final use. The main objective of the LIFE-FLAREX project that supports this work, is the mitigation of the environmental and human health impact of flame retardants used in textiles, looking for new efficient more ecological and healthy alternatives, able to replace the most common FR’s that include toxic compounds like halogens, formaldehyde and antimony. The aim of this work is the determination of the effect of conventional and ecological flame retardants on cotton and polyester fabrics by the application of differential scanning calorimetry DSC and thermogravimetric analysis TGA. Results have been compared with those given by the best FR applied to cotton/polyester blended fabric. The application of DSC up to 550ºC and TGA up to 600ºC in N2 and O2 atmospheres give results that are in accordance with those yielded by the micro-scale combustion calorimeter. Onset temperatures of decomposition, steps of loss of mass by temperature and final residues, enable to evaluate the thermal efficiency of the different flame retardants. The considered flame retardants are based on expandable graphite, dialkyl phosphono carboxylic acid amide and decabrome diphenyl ethane with antimony trioxide. The results have been compared with those given by the application of ammonium polyphosphate and guanidine phosphate on cotton/polyester 50/50 blenAuthors wish to thank the LIFE Environmental Policy and Governance Program from the European Union for its financial contribution to the LIFE-FLAREX (LIFE16 ENV/ES/000374) project.Peer reviewe
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THERMAL ANALYSIS (DSC, TGA) OF TEXTILE FLAME RETARDANT WITH LOWER ENVIRONMENTAL IMPACT
2019Co-Authors: Manich Albert, Coderch Luisa, Alonso Cristina, Pérez-rentero Sonia, Martí MeritxellAbstract:The low thermal stability, easy ignition and rapid combustion of cellulose fibres represent a weaknesses and limitation in the production of fire-protective textiles when they are blended with synthetic fibres. Consequently, the application of flame retardants has been traditionally focussed on their effect on cellulosic fibres. A great number of flame retardants have been used in order to decrease the combustible power of textiles and favour the release of inert volatiles [1]. The toxicity and the environmental impact of flame retardants based on bromide, formaldehyde and antimony, turn aside the interest for flame retardants based on other more healthy and environmental friendly alternatives. The application of flame retardants in the most common used polyester/cotton blends needs to be into account the different behaviour of both components when blended. The application of thermal analysis techniques like differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) lead to results that, according to Qin Chen and Tao Zhao [2], are in accordance with those of the heat release rate given by a micro-scale combustion calorimeter MCC. The DSC diagrams of a polyester/cotton will show the first sharp peak of polyester melting about 255ºC, a second broader peak attributed to the decomposition of cotton around 360ºC, and a third one associated to the decomposition of polyester at temperatures above 400ºC. The TGA curves will draw two stages: the first starting around 310ºC and ending approximately at 380-390ºC, caused by the decomposition of cellulose, and the second from there until 470-485ºC, which is mainly attributed to the decomposition of polyester [2]. The objective of this work is to evaluate the effect of three different non toxic and more environmental friendly flame retardants based on ammonium sulfamate, ammonium polyphosphate and guanidine phosphate, on the thermal behaviour of a polyester cotton 50/50 fabric through the application of TGA and DSC thermal techniques.Authors wish to thank the LIFE Environmental Policy and Governance Program from the European Union for its financial contribution to the FLAREX-LIFE project (LIFE16 ENV/ES/000374).Peer reviewe
Rumi Morishima - One of the best experts on this subject based on the ideXlab platform.
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assessing international evaluations an example from usaid s democracy and Governance Program
American Journal of Evaluation, 2005Co-Authors: Kenneth A. Bollen, Pamela Paxton, Rumi MorishimaAbstract:Each year, hundreds of millions of dollars are spent in international and bilateral aid Programs to assist developing countries in expanding democratic Governance. Evaluating these efforts’ effectiveness is important given the vast needs of the client population. This article reviews a sample of evaluations of the United States Agency for International Development’s (USAID) democracy and Governance (DG) Programming. The authors devise a standardized template to assess the quality of evaluations and find that the evaluations commissioned by USAID need major improvement. They find a lack of methodological accuracy and inadequate coverage of important information about the impact of assistance interventions. Given the importance of the substantive issue, high-quality evaluations are needed to provide reliable information for future Programs and policies. The authors consider obstacles to obtaining high-quality international evaluations and provide recommendations for improvements. Although their focus is USA...
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Assessing International Evaluations An Example From USAID’s Democracy and Governance Program
American Journal of Evaluation, 2005Co-Authors: Kenneth A. Bollen, Pamela Paxton, Rumi MorishimaAbstract:Each year, hundreds of millions of dollars are spent in international and bilateral aid Programs to assist developing countries in expanding democratic Governance. Evaluating these efforts’ effectiveness is important given the vast needs of the client population. This article reviews a sample of evaluations of the United States Agency for International Development’s (USAID) democracy and Governance (DG) Programming. The authors devise a standardized template to assess the quality of evaluations and find that the evaluations commissioned by USAID need major improvement. They find a lack of methodological accuracy and inadequate coverage of important information about the impact of assistance interventions. Given the importance of the substantive issue, high-quality evaluations are needed to provide reliable information for future Programs and policies. The authors consider obstacles to obtaining high-quality international evaluations and provide recommendations for improvements. Although their focus is USA...
John Ladley - One of the best experts on this subject based on the ideXlab platform.
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Overview of data Governance development and deployment
Data Governance, 2020Co-Authors: John LadleyAbstract:Abstract This chapter presents an overview of the process to deploy the data Governance Program.
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Operation and change
Data Governance, 2020Co-Authors: John LadleyAbstract:Abstract This chapter covers operating the data Governance Program. It covers operating technology, training, measuring, and sustaining data Governance.
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Overview: A day in the life of a data Governance Program and its capabilities
Data Governance, 2020Co-Authors: John LadleyAbstract:Abstract This chapter addresses the most common question—“What does it look like?” It continues with a detailed examination of who should do the governing, what activities they need to perform, what is actually governed, and what data Governance looks like when it occurs.
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Data Governance: How to Design, Deploy and Sustain an Effective Data Governance Program
2012Co-Authors: John LadleyAbstract:This book is for any manager or team leader that has the green light to implement a data Governance Program. The problem of managing data continues to grow with issues surrounding cost of storage, exponential growth, as well as administrative, management and security concerns - the solution to being able to scale all of these issues up is data Governance which provides better services to users and saves money. What you will find in this book is an overview of why data Governance is needed, how to design, initiate, and execute a Program and how to keep the Program sustainable. With the provided framework and case studies you will be enabled and educated in launching your very own successful and money saving data Governance Program.Provides a complete overview of the data Governance lifecycle, that can help you discern technology and staff needs Specifically aimed at managers who need to implement a data Governance Program at their companyIncludes case studies to detail 'do's' and 'don'ts' in real-world situations
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Overview of a data Governance Program
Data Governance, 2012Co-Authors: John LadleyAbstract:A data Governance Program really has one clear goal—to disappear. That may seem a bit enigmatic, especially since this book is about making data Governance real. Nevertheless, it is true. Remember, you are deploying a new set of principles for treating a valuable asset in a much-improved manner. At the end of the day, the true mark of success is the organization treating its information as it treats its factories, supply chains, vendors, and customers. In the twenty-first century, no manager argues with standards for material handling, depreciation rules, or customer privacy. These are accepted business practices. There is no debate over whether you should have standards or controls. Yet it is easy to spread data all over an organization to the point that (a) it is excessively expensive to manage, and (b) you cannot find it, make sense of it, or agree on its meaning.
Rajkamal Mahamuni Natarajan - One of the best experts on this subject based on the ideXlab platform.
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Data Governance in smart factory: Effective metadata management
International Journal of Advance Research Ideas and Innovations in Technology, 2019Co-Authors: Mahendraprabu Sundarraj, Rajkamal Mahamuni NatarajanAbstract:Most of the enterprises recognized the importance of Data Governance and started data Governance Programs either at the Enterprise at the individual Business units level. Data Governance councils at various levels in an enterprise define and enforce data quality and security, using policies, standards, and Procedures. The success of Data Governance Program is heavily relying on people or team who is governing the data Governance council. However, Data Governance is best implemented by leveraging people, process, and Technology. In the past, subject matter experts of individual data domains maintained the metadata, which is a critical component of data Governance. Efficient and automated metadata management, which can be established today by leveraging technology and process not just SMEs, has the potential to mitigate the risk of people dependency. Smart factories, which are heavily automated, generates data at a scale and speed which were never seen before by manufacturing industry, and face the crisis to maintain the data quality, and to make the data available for analytics for any further use. Data generated by smart factories are diverse and are mostly stored in distributed systems, which further increases the complexity of data Governance through metadata management. Efficient metadata management, mostly automated, can help smart factories to achieve Data Governance goals, and help to provide data as a service. This paper discusses the shortcomings of Hybrid data Governance model – acknowledged as the better model for data Governance by industry – and proposes a system architecture which has all the benefits of the hybrid model in addition to improvements that are necessary for a smart factory.
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Data Governance in smart factory: Effective metadata management
International Journal of Advance Research Ideas and Innovations in Technology, 2019Co-Authors: Mahendraprabu Sundarraj, Rajkamal Mahamuni NatarajanAbstract:Most of the enterprises recognized the importance of Data Governance and started data Governance Programs either at the Enterprise at the individual Business units level. Data Governance councils at various levels in an enterprise define and enforce data quality and security, using policies, standards, and Procedures. The success of Data Governance Program is heavily relying on people or team who is governing the data Governance council. However, Data Governance is best implemented by leveraging people, process, and Technology. In the past, subject matter experts of individual data domains maintained the metadata, which is a critical component of data Governance. Efficient and automated metadata management, which can be established today by leveraging technology and process not just SMEs, has the potential to mitigate the risk of people dependency. Smart factories, which are heavily automated, generates data at a scale and speed which were never seen before by manufacturing industry, and face the crisis to maintain the data quality, and to make the data available for analytics for any further use. Data generated by smart factories are diverse and are mostly stored in distributed systems, which further increases the complexity of data Governance through metadata management. Efficient metadata management, mostly automated, can help smart factories to achieve Data Governance goals, and help to provide data as a service. This paper discusses the shortcomings of Hybrid data Governance model – acknowledged as the better model for data Governance by industry – and proposes a system architecture which has all the benefits of the hybrid model in addition to improvements that are necessary for a smart factory.
Manich Albert - One of the best experts on this subject based on the ideXlab platform.
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EVALUATION OF HEALTHY AND ECOLOGICAL FRIENDLY FLAME RETARDANTS FOR TEXTILES USING THERMAL ANALYSIS
2019Co-Authors: Manich Albert, Pérez-rentero Sofía, García-alonso M. C., Coderch Luisa, Martí MeritxellAbstract:Flame Retardants (FR) are a group of anthropogenic environmental contaminants used at a relatively high concentration in many applications. Currently, the largest marked group of FRs is halogenated FR, and many of them are considered toxic, persistent and bio accumulative. Non-halogenated alternatives are a possible solution for the problem, but there is a lack of knowledge concerning environmental impact, health risks during the production process and final use. The main objective of the LIFE-FLAREX project that supports this work, is the mitigation of the environmental and human health impact of flame retardants used in textiles, looking for new efficient more ecological and healthy alternatives, able to replace the most common FR’s that include toxic compounds like halogens, formaldehyde and antimony. The aim of this work is the determination of the effect of conventional and ecological flame retardants on cotton and polyester fabrics by the application of differential scanning calorimetry DSC and thermogravimetric analysis TGA. Results have been compared with those given by the best FR applied to cotton/polyester blended fabric. The application of DSC up to 550ºC and TGA up to 600ºC in N2 and O2 atmospheres give results that are in accordance with those yielded by the micro-scale combustion calorimeter. Onset temperatures of decomposition, steps of loss of mass by temperature and final residues, enable to evaluate the thermal efficiency of the different flame retardants. The considered flame retardants are based on expandable graphite, dialkyl phosphono carboxylic acid amide and decabrome diphenyl ethane with antimony trioxide. The results have been compared with those given by the application of ammonium polyphosphate and guanidine phosphate on cotton/polyester 50/50 blenAuthors wish to thank the LIFE Environmental Policy and Governance Program from the European Union for its financial contribution to the LIFE-FLAREX (LIFE16 ENV/ES/000374) project.Peer reviewe
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THERMAL ANALYSIS (DSC, TGA) OF TEXTILE FLAME RETARDANT WITH LOWER ENVIRONMENTAL IMPACT
2019Co-Authors: Manich Albert, Coderch Luisa, Alonso Cristina, Pérez-rentero Sonia, Martí MeritxellAbstract:The low thermal stability, easy ignition and rapid combustion of cellulose fibres represent a weaknesses and limitation in the production of fire-protective textiles when they are blended with synthetic fibres. Consequently, the application of flame retardants has been traditionally focussed on their effect on cellulosic fibres. A great number of flame retardants have been used in order to decrease the combustible power of textiles and favour the release of inert volatiles [1]. The toxicity and the environmental impact of flame retardants based on bromide, formaldehyde and antimony, turn aside the interest for flame retardants based on other more healthy and environmental friendly alternatives. The application of flame retardants in the most common used polyester/cotton blends needs to be into account the different behaviour of both components when blended. The application of thermal analysis techniques like differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) lead to results that, according to Qin Chen and Tao Zhao [2], are in accordance with those of the heat release rate given by a micro-scale combustion calorimeter MCC. The DSC diagrams of a polyester/cotton will show the first sharp peak of polyester melting about 255ºC, a second broader peak attributed to the decomposition of cotton around 360ºC, and a third one associated to the decomposition of polyester at temperatures above 400ºC. The TGA curves will draw two stages: the first starting around 310ºC and ending approximately at 380-390ºC, caused by the decomposition of cellulose, and the second from there until 470-485ºC, which is mainly attributed to the decomposition of polyester [2]. The objective of this work is to evaluate the effect of three different non toxic and more environmental friendly flame retardants based on ammonium sulfamate, ammonium polyphosphate and guanidine phosphate, on the thermal behaviour of a polyester cotton 50/50 fabric through the application of TGA and DSC thermal techniques.Authors wish to thank the LIFE Environmental Policy and Governance Program from the European Union for its financial contribution to the FLAREX-LIFE project (LIFE16 ENV/ES/000374).Peer reviewe
