Articles de revues : « Pompes à carbone »

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Dufayet, L., C. Médernach, C. Bassi, R. Garnier et J. Langrand. « Intoxications par le monoxyde de carbone par pompes d’épuisement lors de la crue de la Seine en Île-de-France au printemps 2016 ». Toxicologie Analytique et Clinique 29, n^o 2 (mai 2017) : S34—S35. http://dx.doi.org/10.1016/j.toxac.2017.03.041.

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Maluche-Baretta, Carolina Riviera Duarte, Cassandro Vidal Talamini do Amarante et Osmar Klauberg Filho. « Análise multivariada de atributos do solo em sistemas convencional e orgânico de produção de maçãs ». Pesquisa Agropecuária Brasileira 41, n^o 10 (octobre 2006) : 1531–39. http://dx.doi.org/10.1590/s0100-204x2006001000011.

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Este estudo foi conduzido em pomares de maçãs nos sistemas de manejo convencional e orgânico, com o objetivo de identificar diferenças entre os dois sistemas de produção, com base em atributos microbiológicos e químicos do solo, por meio de métodos multivariados, como a análise canônica discriminante (ACD) e a análise de correlação canônica (ACC). Em ambos os pomares, foram feitas amostragens em 24 plantas distribuídas em uma grade de 45x54 m, em duas épocas, para a quantificação de teores de carbono da biomassa microbiana (CBM), carbono orgânico total do solo (COT), nitrogênio da biomassa microbiana (NBM), nitrogênio total do solo (NT), relação CBM:COT, relação NBM:NT, respiração basal (C-CO2) e quociente metabólico (qCO2), além da determinação de atributos químicos destes solos. A ACD identificou o CBM como o atributo microbiológico mais importante pela análise multivariada, na separação entre os pomares, seguido do qCO2 e da relação NBM:NT. Atributos microbiológicos e químicos relacionados ao carbono foram mais sensíveis às variações entre os sistemas do que os relacionados ao nitrogênio. Houve alta correlação canônica entre os atributos microbiológicos e químicos do solo nos pomares, com destaque para o CBM, entre os atributos biológicos, e para o pH H2O e alumínio, entre os atributos químicos.

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Klein, André, Alexandra Lebreton, Jérome Lemoine, Jean-Marc Périni, Philippe Roussel et Jean-Claude Michalski. « Identification of urinary oligosaccharides by matrix-assisted laser desorption ionization time-of-flight mass spectrometry ». Clinical Chemistry 44, n^o 12 (1 décembre 1998) : 2422–28. http://dx.doi.org/10.1093/clinchem/44.12.2422.

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Abstract A new method of urinary oligosaccharides identification by matrix-assisted laser desorption time-of-flight mass spectrometry is presented. The method involves three steps: coupling of the urinary oligosaccharides with 8-aminonaphthalene-1,3,6-trisulfonic acid; fast purification over a porous graphite carbon extraction column; and mass spectrometric analysis. Identification of urinary oligosaccharides is based on the patterns and values of the pseudomolecular ions observed. We report here the patterns in urines from patients with Pompe disease, alpha and beta mannosidoses, galacto-sialidosis, and GM1 gangliosidosis. The protocols described here allowed facile and sensitive identification of the pathognomonic oligosacchariduria present in lysosomal diseases and can be extended to any pathological oligosacchariduria.

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Li, Qingxiao, Nicky Rahmana Putra, Dwila Nur Rizkiyah, Ahmad Hazim Abdul Aziz, Irianto Irianto et Lailatul Qomariyah. « Orange Pomace and Peel Extraction Processes towards Sustainable Utilization : A Short Review ». Molecules 28, n^o 8 (18 avril 2023) : 3550. http://dx.doi.org/10.3390/molecules28083550.

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More than 58 million metric tonnes of oranges were produced in 2021, and the peels, which account for around one-fifth of the fruit weight, are often discarded as waste in the orange juice industry. Orange pomace and peels as wastes are used as a sustainable raw material to make valuable products for nutraceuticals. The orange peels and pomace contain pectin, phenolics, and limonene, which have been linked to various health benefits. Various green extraction methods, including supercritical carbon dioxide (ScCO2) extraction, subcritical water extraction (SWE), ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE), are applied to valorize the orange peels and pomace. Therefore, this short review will give insight into the valorization of orange peels/pomace extraction using different extraction methods for health and wellness. This review extracts information from articles written in English and published from 2004 to 2022. The review also discusses orange production, bioactive compounds in orange peels/pomaces, green extractions, and potential uses in the food industry. Based on this review, the valorization of orange peels and pomaces can be carried out using green extraction methods with high quantities and qualities of extracts. Therefore, the extract can be used for health and wellness products.

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Alshalalfeh, Mutasem M., Manzar Sohail, Tawfik A. Saleh et Md Abdul Aziz. « Electrochemical Investigation of Gold Nanoparticle-Modified Glassy Carbon Electrode and its Application in Ketoconazole Determination ». Australian Journal of Chemistry 69, n^o 11 (2016) : 1314. http://dx.doi.org/10.1071/ch16072.

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Ketoconazole (KCZ) is an extensively used antifungal compound and is an active ingredient of anti-scaling shampoos, pomades, and skin ointments. In this work, the cyclic voltammetric behaviour of KCZ was studied with a gold nanoparticle (AuNP)-modified glassy carbon (GC) electrode. The conditions for KCZ determination with GC/AuNP were optimised to achieve the best possible response. A pre-adsorption voltage of –1.6 V, a deposition time of 120 s, pH 4.0, and stirring of the KCZ solution during deposition were chosen as the optimum conditions for KCZ determination. The anodic peak at 0.697 V was used for KCZ determination. A linear concentration range of 20–100 μM (R2 = 0.9986) and a detection limit of 2.3 μM (3σ) was achieved for KCZ using the GC/AuNP electrode.

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Fidalski, Jonez, Karina Maria Vieira Cavalieri-Polizeli, Cássio Antonio Tormena, Guilherme Anghinoni et Pedro Antonio Martins Auler. « Capacidade de Suporte de Carga do Solo em Sistemas de Produção de Laranja Conservacionistas ». Revista Brasileira de Ciência do Solo 39, n^o 3 (juin 2015) : 880–85. http://dx.doi.org/10.1590/01000683rbcs20140548.

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Sistemas conservacionistas em pomares de laranja podem aumentar a capacidade de suporte de carga do solo minimizando os seus riscos de compactação. O objetivo deste trabalho foi avaliar a capacidade de suporte de carga por meio da pressão de preconsolidação e sua dependência a conteúdo de água, densidade e carbono orgânico de um Argissolo Vermelho distrófico latossólico, após 18 anos de implantação de plantas de cobertura permanentes nas entrelinhas de um pomar de laranja. O delineamento experimental foi de blocos ao acaso, com três repetições. Foram estudados três tratamentos de manejo por meio de roçadas nas entrelinhas do pomar, desde o plantio do pomar em 1993: gramínea Paspalum notatum, leguminosa Arachis pintoi e vegetação espontânea. Cento e oito amostras indeformadas de solo foram coletadas em 2011 sob o rodado e entrerrodado das máquinas nas estrelinhas do pomar com textura arenosa nas camadas de 0,00-0,10 m (87 g kg-1 de argila) e 0,10-0,20 m (122 g kg-1 de argila). Determinaram-se as pressões de preconsolidação das curvas de compressão do solo (25, 50, 100, 200, 400, 800 e 1.600 kPa) em conteúdos de água sob três potenciais (-80, -330 e -1.000 hPa), a densidade do solo e o teor de carbono orgânico do solo. A pressão de preconsolidação não foi dependente do conteúdo de água, da densidade do solo e do teor de carbono orgânico do solo. A pressão de preconsolidação sob o rodado na camada de 0,00-0,10 m foi menor nos tratamentos leguminosa e vegetação espontânea. A manutenção permanente da gramínea manejada com roçadas nas entrelinhas do pomar de laranja proporcionou maior capacidade de suporte de carga do solo sob o rodado na camada superficial arenosa.

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Güneşer, Onur, et Yonca Karagül Yüceer. « Biosynthesis of eight-carbon volatiles from tomato and pepper pomaces by fungi : Trichoderma atroviride and Aspergillus sojae ». Journal of Bioscience and Bioengineering 123, n^o 4 (avril 2017) : 451–59. http://dx.doi.org/10.1016/j.jbiosc.2016.11.013.

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Crialesi, Alfredo, Barbara Mazzarotta, Marco Santalucia, Fabrizio Di Caprio, Alfonso Pozio, Alessia Santucci et Luca Farina. « Exploiting Olive Mill Wastewater via Thermal Conversion of the Organic Matter into Gaseous Biofuel—A Case Study ». Energies 15, n^o 8 (15 avril 2022) : 2901. http://dx.doi.org/10.3390/en15082901.

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Olive oil is one excellence of the Italian food industry: around 300 kt yr−1 are produced, creating roughly the same amount of olive mill wastewater (OMW) to be disposed of. The present work describes a process to exploit OMW by converting its organic compounds to valuable gaseous biofuel. A sample OMW was characterized (COD, TOC, solids, and polyphenols) and submitted to membrane filtration tests to concentrate the organic compounds. Based on the results of the experiments, a treatment process was outlined: the retentate streams from microfiltration and ultrafiltration steps were fed to a cracking and a steam reforming reactor, respectively; the obtained syngas streams were then mixed and sent to a methanation reactor. The process was simulated with Aspen Plus (AspenTech©) software, assessing operating conditions and streams compositions: the final biofuel is around 81 mol.% methane, 4 mol.% hydrogen, and 11 mol.% carbon dioxide. The permeate stream cannot be directly disposed of, but both its amount and its polluting charge are greatly reduced. The heat needed by the process, mainly due to the endothermic reactions, can be obtained by burning an amount of olive pomaces, roughly corresponding to one-third of the amount left by olive treatments giving rise to the processed OMW feed.

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Junior, Lauro Rodrigues Nogueira, Carlos Cesar Ronquim, Vinicius Trombin, Roseli Reina, Fernando Delgado et Fernando Paim. « CONTEÚDO DE CARBONO NA BIOMASSA DE LARANJEIRAS REPRESENTATIVAS DO CINTURÃO CITRÍCOLA DE SÃO PAULO E TRIÂNGULO/SUDOESTE MINEIRO ». BIOFIX Scientific Journal 8, n^o 2 (29 décembre 2023) : 36. http://dx.doi.org/10.5380/biofix.v8i2.93201.

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Na agricultura brasileira, as ações de apoio à adaptação e mitigação das mudanças climáticas vêm recebendo cada vez mais atenção. Entretanto, estudos sobre carbono (C) na agricultura são em sua grande maioria focados no solo, e os dados e informações científicas sobre C na biomassa de espécies lenhosas agrícolas ainda são escassos. Buscando apoiar estimativas dos estoques de C na biomassa de laranjeiras (acima e abaixo do solo) do cinturão citrícola de São Paulo e Triângulo/Sudoeste Mineiro , o presente estudo avaliou o conteúdo médio de C em 16 laranjeiras (Citrus sinensis L. Osbeck), considerando as folhas, galhos, tronco e raízes de duas variedades (Pera e Valência) em quatro classes de idade (3-5, 6-10, 11-15 e > 15 anos). As laranjeiras foram avaliadas pelo método destrutivo, e as amostras foram analisadas em um analisador elementar de C, usando o método de combustão a seco. Com base na média ponderada da biomassa das raízes, caule, galhos e folhas, o conteúdo médio de C nas laranjeiras foi de 47%. O caule (47,6%), galhos (47,4%) e raízes (47,4%) apresentaram maior teor de C, em comparação às folhas (43,9%). Não foram encontradas diferenças no conteúdo de C entre as variedades Pera e Valência, nem entre as classes de idade estudadas. Essas informações podem contribuir para o estabelecimento de práticas de manejo em pomares de laranja que busquem manter e/ou aumentar os estoques de C no solo e na biomassa das árvores. Também podem contribuir para o desenvolvimento de projetos de mitigação das alterações climáticas destinados a reduzir as emissões de gases de efeito estufa ou a aumentar o sequestro de C atmosférico.Avaliação destrutiva, Laranja Pera, Laranja Valência, Manejo de Biomassa.

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Tjahjono, Endro wahju, Arfiana Arfiana, Era Restu Finalis et Ali Nurdin. « DESIGN OF BIOGAS COOLING PROCESSING FROM POME FOR (CSTR) CONTINUOUS STIRRED TANK REACTOR SYSTEM ». Majalah Ilmiah Pengkajian Industri 14, n^o 2 (31 août 2020) : 137–44. http://dx.doi.org/10.29122/mipi.v14i2.3856.

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POME (Palm Oil Mill Effluent) can be used as for biogas production, with the main content of (65%) methane gas (CH4) and 35% Carbon Dioxide (CO2), H2S, and H2O gases. Apart from being a gas fuel and a source of electricity generation, biogas from POME waste as well as a waste processor becomes more environmentally friendly (according to quality standards). In order to support the process production of biogas from POME by using Continuous Stirred Tank Reactors (CSTR), it is necessary to decrease POME’s temperature to meet the requirements of the reactor operating conditions. Cooling process by using a Cooling Tower through direct contact between fluids can be a good alternative to be used as a POME cooling method because of its effectiveness in heat exchange and smaller area needed than an open ponds. The type of cooling tower used is the Induced Draft Cooling Tower. In cooling tower design, the steps involved in determining the basic design, calculation of tower dimensions, basin, fan power, losses, and cooling air requirements. Based on the calculation, the tower dimensions determine a height of 5 m, length of 3.6 m, and width of 2.5 m, while the basin cooling tower dimensions determine a height of 2.7 m, length of 3.6 m, and width of 2.5 m, fan power of 5 hp. The cooling air requirement for the POME cooling process is 82,895.14 kg/hour. Keywords : POME; Cooling Tower; CSTR; Fuel; Biogas

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Adil, İ. Hasbay, H. İ. Çetin, M. E. Yener et A. Bayındırlı. « Subcritical (carbon dioxide+ethanol) extraction of polyphenols from apple and peach pomaces, and determination of the antioxidant activities of the extracts ». Journal of Supercritical Fluids 43, n^o 1 (novembre 2007) : 55–63. http://dx.doi.org/10.1016/j.supflu.2007.04.012.

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Huang, Qing, Jiang Liu, Liang Feng, Qi Wang, Wei Guan, Long-Zhang Dong, Lei Zhang, Li-Kai Yan, Ya-Qian Lan et Hong-Cai Zhou. « Multielectron transportation of polyoxometalate-grafted metalloporphyrin coordination frameworks for selective CO2-to-CH4 photoconversion ». National Science Review, 16 juillet 2019. http://dx.doi.org/10.1093/nsr/nwz096.

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Abstract Photocatalytic CO2 reduction into energy carriers is of utmost importance due to the rising concentrations of carbon dioxide and the depleting energy resource. However, the highly selective generation of desirable hydrocarbon fuel, such as methane (CH4), from CO2 remains extremely challenging. Herein, we present two stable polyoxometalate-grafted metalloporphyrin coordination frameworks (POMCFs), which are constructed with reductive Zn-ε-Keggin clusters and photosensitive TCPP linkers, exhibiting high selectivity (> 96%) for CH4 formation in photocatalytic CO2 reduction system. To our knowledge, the high CH4 selectivity of POMCFs has surpassed all of the reported coordiantion framework-based heterogeneous photocatalysts for CO2-to-CH4 conversion. Significantly, the introduction of Zn-ε-keggin cluster with strong reducing ability is the important origin for POMCFs to obtain high photocatalytic selectivity for CH4 formation, considering that eight MoV atoms can theoretically donate eight electrons to fulfill the multi-electrons reduction process of CO2 to CH4 transformation.

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Huang, Ximin (Natalie), Tarkan Tan et L. Beril Toktay. « Carbon Leakage : The Impact of Asymmetric Regulation on Carbon‐Emitting Production ». Production and Operations Management, 11 juin 2020. http://dx.doi.org/10.1111/poms.13181.

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Abdulkarim, Haya, et Mohamed Siaj. « Label-free multiplex electrochemical immunosensor for early diagnosis of lysosomal storage disorders ». Scientific Reports 12, n^o 1 (4 juin 2022). http://dx.doi.org/10.1038/s41598-022-13259-1.

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AbstractPompe, Gaucher and Krabbe disease are lysosomal storage disorders (LSDs) which are a group of genetic diseases that causes the accumulation of lipids in tissues and cells. Pompe, Gaucher and Krabbe are characterized by the deficiency of acid α-glucosidase (GAA), β-Glucocerebrosidase (GBA) and galactocerebrosidase (GALC), and treatable if detected in their early stages. Here, we present the fabrication of an electrochemical immunosensor for the multiplexed quantification and simultaneous detection of GAA, GBA and GALC. The sensor was developed by electrodepositing gold nanoparticles (AuNPs) on an array of carbon electrodes, followed by the immobilization of GAA, GBA and GALC specific antibodies via functionalization with cysteamine and glutaraldehyde. The multiplexed immunosensor was able to successfully detect GAA, GBA and GALC at the femtomolar level with respective low detection limits of 0.12 pg/ml, 0.31 pg/ml and 0.18 pg/ml. The immunosensor showed good selectivity, sensitivity and good recovery when spiked in human serum, which confirms its possible applicability in point-of-care testing for the early diagnosis of LSDs.

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Park, Seung Jae, Gérard P. Cachon, Guoming Lai et Sridhar Seshadri. « Supply Chain Design and Carbon Penalty : Monopoly vs. Monopolistic Competition ». Production and Operations Management, avril 2015, n/a. http://dx.doi.org/10.1111/poms.12373.

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Blanco, Christian C. « Supply Chain Carbon Footprinting and Climate Change Disclosures of Global Firms ». Production and Operations Management, 27 avril 2021. http://dx.doi.org/10.1111/poms.13421.

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Park, Hyunwoo, Christian Blanco et Elliot Bendoly. « Vessel sharing and its impact on maritime operations and carbon emissions ». Production and Operations Management, 11 avril 2022. http://dx.doi.org/10.1111/poms.13730.

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Roemer, Nils, Gilvan C. Souza, Christian Tröster et Guido Voigt. « Offset or reduce : How should firms implement carbon footprint reduction initiatives ? » Production and Operations Management, 20 avril 2023. http://dx.doi.org/10.1111/poms.14017.

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Wang, Siding, Guangning Wang, Haijun Pang, Tianyang Wang, Lu Li, Shaobin Li, Li Zhang et Tingting Chen. « A novel VW12 POMCPs with π‐π stacking and honeycomb 2D network structure accommodated by MXenes as high‐performance supercapacitors negative electrode ». European Journal of Inorganic Chemistry, 27 octobre 2023. http://dx.doi.org/10.1002/ejic.202300533.

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The key to obtain supercapacitors with high energy density is rational design and synthesis of negative electrode materials. Herein, a new type of polyoxometalate‐based coordination polymer was prepared by one‐step hydrothermal method. Polymer 1 with honeycomb two‐dimensional network structure is beneficial to improve electrical conductivity and storage capacity because of its π‐π stacking interaction. Ti3C2Tx, an MXene material with excellent electrical conductivity, was mixed with compound 1, which has rich redox reactions. As expected, 1@Ti3C2Tx exhibited outstanding specific capacitance (768.7 F g‐1 at 8 A g‐1), which is superior to many materials. In addition, the hybrid material also showed good cycle stability (88.1% capacity retention after 1000 cycles). This work provides an effective way to develop hybrid electrode materials based on polyoxometalate‐based coordination polymers as supercapacitors. In addition, using 1@Ti3C2Tx as the negative electrode material and celery leaf carbon paper as the positive electrode material, the asymmetric supercapacitor device is fabricated. When the power density is 629.7 W kg‐1, the energy density is 9.2 Wh kg‐1, which indicates that it has a good application prospect.

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BAYKARA TAŞKAYA, Arzu. « RODOS ISLAND SULFUR MINE ». Osmanlı Medeniyeti Araştırmaları Dergisi, 17 juillet 2022. http://dx.doi.org/10.21021/osmed.1106980.

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Sulfur has many uses. Most of the crude sulfur is produced by sulfur dioxide gas, sulfuric acid, carbon sulfide, thiosulfate, etc. used in production. Bee sulfur is included in the composition of black powder and fireworks. It should be noted that sulfur is used in the preparation of pomades and shampoos used in the treatment of skin diseases and sulphurization against powdery mildew disease seen in vineyards. There is a sulfur mine in the island town of İncirli, which is a community of twelve islands connected to the island of Kos of Rhodes. We understand from the first document in 1840 that there was a sulfur mine on the island, as these mining operating privileges were intended to be granted. The state did not want to give iltizam on the grounds that the concession of the mine, which received quite a lot of demand, was harmed by the state. Sulfur mine started to be processed in the factory, which was established under Tophaneyi Amire in 1857. The existence of sulfur on the island has been one of the main livelihoods of the people. The sulfur soil of the mine, which was operated with the privileges of foreigners for a certain period, was exported to the surrounding areas with special permissions given by the state. Although there is sulphurous soil on other islands around; It could not yield as much vineyards as on İncirli Island. Two types of sulfur soil were produced in İncirli Island. Due to the earthquake that occurred, new mining areas were opened on İncirli Island; The factory here was transferred from Tophaneyi Amire to tax farmers. The data and information used in this study were mainly obtained from the documents in the Presidential Ottoman Archive, official statistics of the period and other publications. The location of the sulfur mine, the type and production characteristics of the mine, and the persons to whom the concession was granted, were examined one by one; mine production and the mining sector in the economic structure of the Ottoman Empire are explained.

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