Aviso, K B; Sy, C L; Tan, R R; Ubando, A T Fuzzy optimization of carbon management networks based on direct and indirect biomass co-firing Journal Article Forthcoming Renewable and Sustainable Energy Reviews, 132 , pp. 110035, Forthcoming, ISSN: 1364-0321. Abstract | Links | BibTeX @article{Aviso2020,
title = {Fuzzy optimization of carbon management networks based on direct and indirect biomass co-firing},
author = {K.B. Aviso and C.L. Sy and R.R. Tan and A.T. Ubando},
url = {http://www.sciencedirect.com/science/article/pii/S1364032120303269},
doi = {https://doi.org/10.1016/j.rser.2020.110035},
issn = {1364-0321},
year = {2020},
date = {2020-10-01},
journal = {Renewable and Sustainable Energy Reviews},
volume = {132},
pages = {110035},
abstract = {A drastic reduction in greenhouse gas emissions from electricity generation will be needed to mitigate climate change to a safe level. Residual biomass from agriculture is an underutilized energy source that can contribute to the needed emissions cut, but its geographic dispersion presents logistical problems. Direct and indirect co-firing of biomass in existing power plants presents a flexible means of utilizing this resource. Indirect co-firing of biomass with biochar co-production can even give greater reduction in greenhouse gas emissions if the biochar is applied to soil as a form of carbon sequestration. In this paper, a fuzzy linear programming model is developed for optimizing a carbon management network based on direct and indirect biomass co-firing, coupled with biochar application to soil for the latter case. The model can match biomass sources to power plants; the power plants that use indirect co-firing are also matched to biochar application sites. The model is illustrated using a case study representative of a developing country with an agriculture-intensive economy. Results show that not all powerplants need to implement co-firing to reach a balance between reducing GHG emissions and the risk of introducing contaminants in soil. The model provides effective decision support for decarbonizing power generation, particularly in developing countries that still make use of coal-fired power plants and which have abundant biomass resources in the form of agricultural waste.},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
A drastic reduction in greenhouse gas emissions from electricity generation will be needed to mitigate climate change to a safe level. Residual biomass from agriculture is an underutilized energy source that can contribute to the needed emissions cut, but its geographic dispersion presents logistical problems. Direct and indirect co-firing of biomass in existing power plants presents a flexible means of utilizing this resource. Indirect co-firing of biomass with biochar co-production can even give greater reduction in greenhouse gas emissions if the biochar is applied to soil as a form of carbon sequestration. In this paper, a fuzzy linear programming model is developed for optimizing a carbon management network based on direct and indirect biomass co-firing, coupled with biochar application to soil for the latter case. The model can match biomass sources to power plants; the power plants that use indirect co-firing are also matched to biochar application sites. The model is illustrated using a case study representative of a developing country with an agriculture-intensive economy. Results show that not all powerplants need to implement co-firing to reach a balance between reducing GHG emissions and the risk of introducing contaminants in soil. The model provides effective decision support for decarbonizing power generation, particularly in developing countries that still make use of coal-fired power plants and which have abundant biomass resources in the form of agricultural waste. |
Semaan, Marleine Effectuation et innovation dans des contextes contraints en ressources : une revue de littérature Journal Article Innovations, 2020/3 (63), pp. 153 à 178, 2020, ISBN: 9782807394209. Abstract | Links | BibTeX @article{Semaan2020,
title = {Effectuation et innovation dans des contextes contraints en ressources : une revue de littérature},
author = {Marleine Semaan},
editor = {De Boeck Supérieur},
url = {https://www.cairn.info/revue-innovations-2020-3-page-153.htm},
doi = {10.3917/inno.063.0153},
isbn = {9782807394209},
year = {2020},
date = {2020-09-09},
journal = {Innovations},
volume = {2020/3},
number = {63},
pages = {153 à 178},
abstract = {Ce travail a pour objectif d’identifier à quel(s) type(s) d’innovations contraintes par les ressources, la théorie de l’effectuation est reliée et quelles sont les problématiques pour lesquelles ces deux littératures sont mobilisées conjointement. Pour ce faire, nous avons réalisé une revue systématique de littérature basée sur une analyse bibliométrique (co-citations des références) et une analyse sémantique (co-citations des mots clés). Les résultats de ces analyses effectuées sur 55 documents, à l’aide de la plateforme d’analyse textuelle et bibliométrique, CORTEXT Manager, montrent que la théorie de l’effectuation est fortement liée au bricolage par le biais de différentes thématiques liées à l’entrepreneuriat telles que l’éducation entrepreneuriale, l’internationalisation, les approches d’exploration et de création d’opportunités et l’entrepreneuriat social. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ce travail a pour objectif d’identifier à quel(s) type(s) d’innovations contraintes par les ressources, la théorie de l’effectuation est reliée et quelles sont les problématiques pour lesquelles ces deux littératures sont mobilisées conjointement. Pour ce faire, nous avons réalisé une revue systématique de littérature basée sur une analyse bibliométrique (co-citations des références) et une analyse sémantique (co-citations des mots clés). Les résultats de ces analyses effectuées sur 55 documents, à l’aide de la plateforme d’analyse textuelle et bibliométrique, CORTEXT Manager, montrent que la théorie de l’effectuation est fortement liée au bricolage par le biais de différentes thématiques liées à l’entrepreneuriat telles que l’éducation entrepreneuriale, l’internationalisation, les approches d’exploration et de création d’opportunités et l’entrepreneuriat social. |
Ubando, Aristotle T; Africa, Aaron Don M; Maniquiz-Redillas, Marla C; Culaba, Alvin B; Chen, Wei-Hsin; Chang, Jo-Shu Microalgal biosorption of heavy metals: A comprehensive bibliometric review Journal Article Forthcoming Journal of Hazardous Materials, 402 , pp. 123431, Forthcoming, ISSN: 0304-3894. Abstract | Links | BibTeX @article{Ubando2020,
title = {Microalgal biosorption of heavy metals: A comprehensive bibliometric review},
author = {Aristotle T. Ubando and Aaron Don M. Africa and Marla C. Maniquiz-Redillas and Alvin B. Culaba and Wei-Hsin Chen and Jo-Shu Chang},
url = {https://www.sciencedirect.com/science/article/pii/S0304389420314205?casa_token=ycNBP-TrIO8AAAAA:KKIZHP3xH1ksuWMvYZo-wi3r4m9Qp0cRFazVq-U3C0coLh5fRd43ZKoGE_mE9rEdhveZHdunBBk},
doi = {https://doi.org/10.1016/j.jhazmat.2020.123431},
issn = {0304-3894},
year = {2020},
date = {2020-09-09},
journal = {Journal of Hazardous Materials},
volume = {402},
pages = {123431},
abstract = {Heavy metals in the effluents released from industrial establishments pose risks to the environment and society. Prevalent organisms such as microalgae in industrial wastes can thrive in this harmful environment. The connection of the metal-binding proteins of the microalgal cell wall to the metal ions of the heavy metals enables microalgae as an ideal medium for biosorption. The current literature lacks the review of various microalgae used as biosorption of heavy metals from industrial effluents. This work aims to comprehensively review the literature on the use of microalgae as a biosorption for heavy metals. The study summarizes the application of different microalgae for heavy metals removal by identifying the various factors affecting the biosorption performance. Approaches to quantifying the heavy metals concentration are outlined. The methods of microalgae to generate biocompounds to enable biosorption of heavy metals are itemized. The study also aims to identify the materials produced by microalgae to facilitate biosorption. The industrial sectors with the potential benefit from the adoption of microalgal biosorption of heavy metals are recognized. Moreover, the current challenges and future perspectives of microalgal biosorption are discussed.},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
Heavy metals in the effluents released from industrial establishments pose risks to the environment and society. Prevalent organisms such as microalgae in industrial wastes can thrive in this harmful environment. The connection of the metal-binding proteins of the microalgal cell wall to the metal ions of the heavy metals enables microalgae as an ideal medium for biosorption. The current literature lacks the review of various microalgae used as biosorption of heavy metals from industrial effluents. This work aims to comprehensively review the literature on the use of microalgae as a biosorption for heavy metals. The study summarizes the application of different microalgae for heavy metals removal by identifying the various factors affecting the biosorption performance. Approaches to quantifying the heavy metals concentration are outlined. The methods of microalgae to generate biocompounds to enable biosorption of heavy metals are itemized. The study also aims to identify the materials produced by microalgae to facilitate biosorption. The industrial sectors with the potential benefit from the adoption of microalgal biosorption of heavy metals are recognized. Moreover, the current challenges and future perspectives of microalgal biosorption are discussed. |
Omena, Janna Joceli; Rabello, Elaine Teixeira; Mintz, André Goes Digital Methods for Hashtag Engagement Research Journal Article Social Media + Society, 6 (3), pp. 2056305120940697, 2020. Abstract | Links | BibTeX @article{Omena2020,
title = {Digital Methods for Hashtag Engagement Research},
author = {Janna Joceli Omena and Elaine Teixeira Rabello and André Goes Mintz},
url = {https://journals.sagepub.com/doi/full/10.1177/2056305120940697},
doi = {https://doi.org/10.1177/2056305120940697},
year = {2020},
date = {2020-09-03},
journal = {Social Media + Society},
volume = {6},
number = {3},
pages = {2056305120940697},
abstract = {This article seeks to contribute to the field of digital research by critically accounting for the relationship between hashtags and their forms of grammatization—the platform techno-materialization process of online activity. We approach hashtags as sociotechnical formations that serve social media research not only as criteria in corpus selection but also displaying the complexity of the online engagement and its entanglement with the technicity of web platforms. Therefore, the study of hashtag engagement requires a grasping of the functioning of the platform itself (technicity) along with the platform grammatization. In this respect, we propose the three-layered (3L) perspective for addressing hashtag engagement. The first contemplates potential differences between high-visibility and ordinary hashtag usage culture, its related actors, and content. The second focuses on hashtagging activity and the repurposing of how hashtags can be differently embedded into social media databases. The last layer looks particularly into the images and texts to which hashtags are brought to relation. To operationalize the 3L framework, we draw on the case of the “impeachment-cum-coup” of Brazilian president Dilma Rousseff. When cross-read, the three layers add value to one another, providing also difference visions of the high-visibility and ordinary groups.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This article seeks to contribute to the field of digital research by critically accounting for the relationship between hashtags and their forms of grammatization—the platform techno-materialization process of online activity. We approach hashtags as sociotechnical formations that serve social media research not only as criteria in corpus selection but also displaying the complexity of the online engagement and its entanglement with the technicity of web platforms. Therefore, the study of hashtag engagement requires a grasping of the functioning of the platform itself (technicity) along with the platform grammatization. In this respect, we propose the three-layered (3L) perspective for addressing hashtag engagement. The first contemplates potential differences between high-visibility and ordinary hashtag usage culture, its related actors, and content. The second focuses on hashtagging activity and the repurposing of how hashtags can be differently embedded into social media databases. The last layer looks particularly into the images and texts to which hashtags are brought to relation. To operationalize the 3L framework, we draw on the case of the “impeachment-cum-coup” of Brazilian president Dilma Rousseff. When cross-read, the three layers add value to one another, providing also difference visions of the high-visibility and ordinary groups. |
